/* ==========================================================================
   Iakobi Iakobashvili — Portfolio
   Design language: dark IDE / terminal, built for a Full-Stack · AI · DevOps dev
   ========================================================================== */

:root {
  /* Palette */
  --void: #1a1e28;
  --surface: #232833;
  --surface-2: #2a303c;
  --surface-3: #333a48;
  --border: rgba(231, 234, 240, 0.11);
  --border-strong: rgba(231, 234, 240, 0.2);

  --text-primary: #e9ecf3;
  --text-muted: #97a0b3;
  --text-faint: #5b6376;

  --mint: #3ddc97;
  --mint-dim: rgba(61, 220, 151, 0.14);
  --amber: #f5a623;
  --amber-dim: rgba(245, 166, 35, 0.14);
  --violet: #8b7cf6;
  --violet-dim: rgba(139, 124, 246, 0.14);
  --red: #ff5f57;
  --yellow: #ffbd2e;
  --green: #28c840;

  --shadow-rgb: 0, 0, 0;
  --on-accent: #06140d;
  --glass-rgb: 26, 30, 40;
  --chip-bg: rgba(255, 255, 255, 0.03);
  --chip-bg-hover: rgba(255, 255, 255, 0.065);

  /* Type */
  --font-display: "Space Grotesk", "Inter", sans-serif;
  --font-body: "Inter", sans-serif;
  --font-mono: "JetBrains Mono", monospace;

  --container: 1180px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==========================================================================
   Light theme
   ========================================================================== */
html[data-theme="light"] {
  --void: #f5f6f7;
  --surface: #ffffff;
  --surface-2: #eef1f3;
  --surface-3: #e4e9ed;
  --border: rgba(28, 43, 51, 0.14);
  --border-strong: rgba(28, 43, 51, 0.22);

  --text-primary: #18252d;
  --text-muted: #465660;
  --text-faint: #65747e;

  --mint: #08774e;
  --mint-dim: rgba(8, 119, 78, 0.08);
  --amber: #b06a0a;
  --amber-dim: rgba(176, 106, 10, 0.1);
  --violet: #6c56e0;
  --violet-dim: rgba(108, 86, 224, 0.1);

  --shadow-rgb: 20, 23, 31;
  --on-accent: #f6fdf9;
  --glass-rgb: 255, 255, 255;
  --chip-bg: rgba(20, 23, 31, 0.035);
  --chip-bg-hover: rgba(20, 23, 31, 0.07);
}

html[data-theme="light"] body::before {
  opacity: 0.5;
}
html[data-theme="light"] .background-blur {
  opacity: 0.18;
}
html[data-theme="light"] .blur-left {
  background: radial-gradient(circle, var(--mint), transparent 70%);
}
html[data-theme="light"] .blur-right {
  background: radial-gradient(circle, var(--violet), transparent 70%);
}
html[data-theme="light"] .image-wrapper img {
  filter: grayscale(8%);
}
html[data-theme="light"] ::selection {
  background: var(--mint);
  color: #ffffff;
}
html[data-theme="light"] .header.scrolled {
  border-bottom: 1px solid var(--border-strong);
}
html[data-theme="light"] .hero-terminal,
html[data-theme="light"] .browser-frame,
html[data-theme="light"] .project-card,
html[data-theme="light"] .about-card:hover,
html[data-theme="light"] .contact-link:hover,
html[data-theme="light"] .contact-json-card,
html[data-theme="light"] .contact-form-card,
html[data-theme="light"] .chatbot-toast,
html[data-theme="light"] .chatbot-window,
html[data-theme="light"] .navbar.active {
  box-shadow: 0 20px 45px -24px rgba(var(--shadow-rgb), 0.16);
}
html[data-theme="light"] .project-card:hover {
  box-shadow: 0 25px 50px -24px rgba(var(--shadow-rgb), 0.2);
}
html[data-theme="light"] .hero-badge {
  border-color: rgba(14, 157, 99, 0.28);
}
html[data-theme="light"] .btn-primary:hover {
  box-shadow: 0 10px 26px -8px rgba(14, 157, 99, 0.35);
}
html[data-theme="light"] .chatbot-toggle {
  box-shadow: 0 16px 34px -12px rgba(14, 157, 99, 0.4);
}
html[data-theme="light"] .skills-tab.active {
  border-color: rgba(14, 157, 99, 0.3);
}
html[data-theme="light"] .project-tags span {
  border-color: rgba(176, 106, 10, 0.28);
}
html[data-theme="light"] .skill.card:hover {
  border-color: var(--violet);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
  width: 100%;
}

body {
  margin: 0;
  background: var(--void);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  width: 100%;
  overscroll-behavior-x: none;
}

img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
}
button {
  font-family: inherit;
  cursor: pointer;
}
p {
  margin: 0 0 1em;
}
p:last-child {
  margin-bottom: 0;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 600;
  margin: 0;
  letter-spacing: -0.02em;
}

::selection {
  background: var(--mint);
  color: var(--void);
}

:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 3px;
  border-radius: 4px;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}

.section {
  position: relative;
  padding: 130px 0;
}

/* ambient background */
.background-blur-wrap {
  position: fixed;
  inset: 0;
  overflow: hidden;
  z-index: 0;
  pointer-events: none;
}
.background-blur {
  position: absolute;
  width: 640px;
  height: 640px;
  border-radius: 50%;
  filter: blur(140px);
  z-index: 0;
  pointer-events: none;
  opacity: 0.35;
}
.blur-left {
  top: -160px;
  left: -220px;
  background: radial-gradient(circle, var(--mint), transparent 70%);
  animation: float-a 22s ease-in-out infinite;
}
.blur-right {
  bottom: 10%;
  right: -260px;
  background: radial-gradient(circle, var(--violet), transparent 70%);
  animation: float-b 26s ease-in-out infinite;
}
@keyframes float-a {
  0%,
  100% {
    transform: translate(0, 0);
  }
  50% {
    transform: translate(60px, 80px);
  }
}
@keyframes float-b {
  0%,
  100% {
    transform: translate(0, 0);
  }
  50% {
    transform: translate(-70px, -50px);
  }
}

/* grid texture overlay for extra depth */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.35;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 10%, transparent 70%);
}

main,
header,
footer {
  position: relative;
  z-index: 1;
}

/* ==========================================================================
   Header
   ========================================================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 20px 0;
  transition: all 0.4s var(--ease);
}
.header.scrolled {
  padding: 12px 0;
  background: rgba(var(--glass-rgb), 0.78);
  backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid var(--border);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  letter-spacing: -0.01em;
}
.logo::before {
  content: "</>";
  color: var(--mint);
  font-size: 0.95em;
}

.navbar {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--chip-bg);
  border: 1px solid var(--border);
  padding: 6px;
  border-radius: 999px;
}
.navbar a {
  position: relative;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: 8px 16px;
  border-radius: 999px;
  transition: color 0.25s var(--ease), background 0.25s var(--ease);
}
.navbar a:hover {
  color: var(--text-primary);
  background: var(--chip-bg-hover);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.language-switcher {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--chip-bg);
}
.language-switcher img {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  object-fit: cover;
  cursor: pointer;
  opacity: 0.45;
  transition: opacity 0.2s var(--ease), transform 0.2s var(--ease);
}

@media (hover: none) and (pointer: coarse) {
  /* Touch screens: grow the tappable area around each flag to ~44px
     (accessible tap-target size) without changing how big the flag looks */
  .language-switcher {
    gap: 0;
    padding: 0 2px;
  }
  .language-switcher img {
    box-sizing: content-box;
    padding: 11px;
  }
}
.language-switcher img:hover {
  transform: scale(1.1);
}
.language-switcher img.active,
.language-switcher img:hover {
  opacity: 1;
}

.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--chip-bg);
  color: var(--text-primary);
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--chip-bg);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  transition: all 0.25s var(--ease);
}
.theme-toggle:hover {
  color: var(--mint);
  border-color: var(--border-strong);
  transform: rotate(-12deg);
}
.theme-toggle .theme-icon-dark {
  display: none;
}
html[data-theme="light"] .theme-toggle .theme-icon-light {
  display: none;
}
html[data-theme="light"] .theme-toggle .theme-icon-dark {
  display: inline;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 26px;
  border-radius: 10px;
  font-size: 0.9rem;
  font-weight: 600;
  border: 1px solid transparent;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s var(--ease), border-color 0.25s var(--ease);
  white-space: nowrap;
}
.btn-primary {
  background: var(--mint);
  color: var(--on-accent);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.22), 0 0 0 0 rgba(61, 220, 151, 0.5);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.25), 0 12px 30px -8px rgba(61, 220, 151, 0.4);
}
.btn-secondary {
  background: var(--chip-bg);
  color: var(--text-primary);
  border-color: var(--border-strong);
}
.btn-secondary:hover {
  transform: translateY(-2px);
  border-color: var(--mint);
  background: var(--chip-bg-hover);
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  padding-top: 190px;
  padding-bottom: 100px;
  min-height: 100vh;
  display: flex;
  align-items: center;
}
.hero::before {
  content: "";
  position: absolute;
  inset: -10% -10% auto -10%;
  height: 70%;
  background: radial-gradient(ellipse 60% 50% at 50% 0%, rgba(61, 220, 151, 0.08), transparent 70%);
  pointer-events: none;
  z-index: -1;
}
html[data-theme="light"] .hero::before {
  opacity: 0.5;
}
.hero-content {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 60px;
  align-items: center;
}
.hero-content > * {
  min-width: 0;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--mint);
  background: var(--mint-dim);
  border: 1px solid rgba(61, 220, 151, 0.3);
  padding: 7px 14px;
  border-radius: 999px;
  margin-bottom: 22px;
}
.hero-badge::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--mint);
  margin-right: 9px;
  box-shadow: 0 0 0 0 rgba(61, 220, 151, 0.6);
  animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0% {
    box-shadow: 0 0 0 0 rgba(61, 220, 151, 0.55);
  }
  70% {
    box-shadow: 0 0 0 8px rgba(61, 220, 151, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(61, 220, 151, 0);
  }
}

#hero-name {
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  line-height: 1.05;
  margin-bottom: 10px;
}
#hero-title {
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 500;
  color: transparent;
  background: linear-gradient(90deg, var(--mint), var(--violet));
  -webkit-background-clip: text;
  background-clip: text;
  margin-bottom: 22px;
  display: inline-block;
}
.hero-description {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 520px;
  margin-bottom: 32px;
}
.hero-buttons {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 34px;
}
.social-links {
  display: flex;
  gap: 12px;
  margin-bottom: 34px;
}
.social-links a {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text-muted);
  transition: all 0.25s var(--ease);
}
.social-links a:hover {
  color: var(--void);
  background: var(--mint);
  border-color: var(--mint);
  transform: translateY(-3px);
}

/* terminal card */
.hero-terminal {
  border-radius: var(--radius-md);
  background: var(--surface);
  border: 1px solid var(--border);
  overflow: hidden;
  box-shadow: 0 30px 60px -30px rgba(var(--shadow-rgb), 0.6);
  max-width: 480px;
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease), box-shadow 0.35s var(--ease);
}
.hero-terminal:hover {
  transform: translateY(-3px);
  border-color: var(--border-strong);
  box-shadow: 0 34px 70px -28px rgba(var(--shadow-rgb), 0.62), 0 0 44px -16px rgba(61, 220, 151, 0.28);
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 14px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
}
.terminal-bar .dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}
.terminal-bar .dot.red {
  background: var(--red);
}
.terminal-bar .dot.yellow {
  background: var(--yellow);
}
.terminal-bar .dot.green {
  background: var(--green);
}
.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-faint);
  margin-left: 6px;
}
.terminal-body {
  padding: 20px 20px 24px;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  min-height: 96px;
}
.terminal-line {
  color: var(--text-muted);
  margin: 0 0 6px;
}
.terminal-line .prompt {
  color: var(--mint);
  margin-right: 8px;
}
.terminal-line .out {
  color: var(--text-primary);
}
.cursor {
  display: inline-block;
  color: var(--mint);
  animation: blink 1s step-start infinite;
}
@keyframes blink {
  50% {
    opacity: 0;
  }
}

/* hero image / browser frame */
.hero-image {
  display: flex;
  justify-content: center;
}
.browser-frame {
  width: 100%;
  max-width: 420px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: 0 40px 80px -30px rgba(var(--shadow-rgb), 0.65);
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease), box-shadow 0.35s var(--ease);
}
.browser-frame:hover {
  transform: translateY(-3px);
  border-color: var(--border-strong);
  box-shadow: 0 44px 90px -28px rgba(var(--shadow-rgb), 0.68), 0 0 48px -16px rgba(139, 124, 246, 0.25);
}
.browser-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 14px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
}
.browser-bar .dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}
.browser-bar .dot.red {
  background: var(--red);
}
.browser-bar .dot.yellow {
  background: var(--yellow);
}
.browser-bar .dot.green {
  background: var(--green);
}
.browser-url {
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-faint);
  background: var(--chip-bg);
  padding: 4px 10px;
  border-radius: 6px;
}
.image-wrapper {
  aspect-ratio: 4 / 4.6;
  overflow: hidden;
}
.image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(15%);
}

/* ==========================================================================
   Section titles
   ========================================================================== */
.section-title {
  max-width: 640px;
  margin-bottom: 56px;
}
.section-title .eyebrow {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--mint);
  margin-bottom: 14px;
}
.section-title .eyebrow::before {
  content: "// ";
  color: var(--text-faint);
}
.section-title h2 {
  font-size: clamp(1.8rem, 3.4vw, 2.5rem);
  margin-bottom: 12px;
}
.section-title p {
  color: var(--text-muted);
  font-size: 1.02rem;
}

/* ==========================================================================
   About
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.card,
.about-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 30px;
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.about-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  box-shadow: 0 20px 40px -24px rgba(var(--shadow-rgb), 0.55), 0 0 30px -16px rgba(61, 220, 151, 0.2);
}
.about-card h3 {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 14px;
}
.about-card h3::before {
  content: "/* ";
  color: var(--text-faint);
  font-weight: 400;
}
.about-card h3::after {
  content: " */";
  color: var(--text-faint);
  font-weight: 400;
}
.about-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* ==========================================================================
   Skills
   ========================================================================== */
.skills-tab-list {
  display: flex;
  flex-wrap: nowrap;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: thin;
  padding-bottom: 4px;
  margin-bottom: 32px;
}
.skills-tab {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  white-space: nowrap;
  gap: 6px;
  padding: 11px 10px;
  border-radius: 10px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 0.86rem;
  font-weight: 500;
  transition: all 0.25s var(--ease);
}
.skills-tab i {
  color: var(--text-faint);
  transition: color 0.25s var(--ease);
}
.skills-tab:hover {
  border-color: var(--border-strong);
  color: var(--text-primary);
}
.skills-tab.active {
  background: var(--mint-dim);
  border-color: rgba(61, 220, 151, 0.35);
  color: var(--mint);
}
.skills-tab.active i {
  color: var(--mint);
}

.skills-group-panel {
  display: none;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 34px;
  animation: fade-up 0.4s var(--ease);
}
.skills-group-panel.active {
  display: block;
}
.skills-group-title {
  font-size: 1.2rem;
  margin-bottom: 6px;
}
.skills-group-description {
  color: var(--text-muted);
  font-size: 0.92rem;
  margin-bottom: 24px;
}
.skills-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.skill.card {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  padding: 9px 15px;
  margin-top: 10px;
  border-radius: 8px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-primary);
  transition: all 0.2s var(--ease);
}
.skill.card:hover {
  border-color: var(--violet);
  color: var(--violet);
  transform: translateY(-2px);
}

/* Self-assessed skill levels: orange/yellow = learning, green = known. */
.skills-group-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 20px;
  margin-bottom: 20px;
}
.skills-group-header .skills-group-description {
  margin-bottom: 0;
}
.skills-legend {
  display: grid;
  gap: 8px;
  flex-shrink: 0;
  padding-top: 3px;
  color: var(--text-muted);
  font-size: 0.75rem;
}
.skills-legend-item,
.skills-legend-swatches {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.skills-legend-swatches {
  gap: 3px;
}
.skill-level-beginner {
  --skill-bg: #ff9f1c;
  --skill-ink: #442600;
  --skill-border: #e5890a;
}
.skill-level-practicing {
  --skill-bg: #f8db87;
  --skill-ink: #493509;
  --skill-border: #d9b65a;
}
.skill-level-familiar {
  --skill-bg: #bcecc9;
  --skill-ink: #163b29;
  --skill-border: #83c898;
}
.skill-level-confident {
  --skill-bg: #176448;
  --skill-ink: #e6fff1;
  --skill-border: #369775;
}
.skill-swatch {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--skill-bg);
  border: 1px solid var(--skill-border);
}
.skills-pills .skill.card {
  margin-top: 0;
}
.skill.card.skill-rated,
.skill.card.skill-rated:hover,
html[data-theme="light"] .skill.card.skill-rated:hover {
  position: relative;
  background: var(--skill-bg);
  color: var(--skill-ink);
  border-color: var(--skill-border);
}
.skill.card.skill-rated:focus-visible {
  outline: 2px solid var(--text-primary);
  outline-offset: 3px;
}
.skill-level-tip {
  position: absolute;
  left: 50%;
  bottom: calc(100% + 9px);
  width: max-content;
  max-width: 180px;
  padding: 7px 10px;
  border-radius: 7px;
  background: var(--surface-3);
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
  font: 0.72rem/1.5 var(--font-body);
  text-align: center;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%);
  z-index: 5;
}
.skill-rated:hover,
.skill-rated:focus {
  z-index: 6;
}
.skill-rated:hover .skill-level-tip,
.skill-rated:focus .skill-level-tip {
  opacity: 1;
  visibility: visible;
}
@media (max-width: 600px) {
  .skills-group-header {
    flex-direction: column;
    gap: 14px;
  }
  .skills-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 18px;
    padding-top: 0;
    font-size: 0.7rem;
  }
  .skill-level-tip {
    max-width: 120px;
  }
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========================================================================
   Projects
   ========================================================================== */
.projects-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  gap: 16px;
}
.projects-track {
  display: flex;
  flex: 1;
  min-width: 0;
  gap: 24px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 6px 2px 18px;
  scrollbar-width: none;
}
.projects-track::-webkit-scrollbar {
  display: none;
}

.project-card {
  position: relative;
  flex: 0 0 340px;
  scroll-snap-align: start;
  background: transparent;
  box-shadow: none;
  border: none;
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease), box-shadow 0.35s var(--ease);
}
.project-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--mint), var(--violet));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease);
  z-index: 1;
}
.project-card:hover::before {
  transform: scaleX(1);
}
.project-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-strong);
  box-shadow: 0 30px 60px -30px rgba(var(--shadow-rgb), 0.6), 0 0 40px -18px rgba(61, 220, 151, 0.22);
}
.card-chrome {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 10px 12px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
}
.card-chrome .dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
}
.card-chrome .dot.red {
  background: var(--red);
}
.card-chrome .dot.yellow {
  background: var(--yellow);
}
.card-chrome .dot.green {
  background: var(--green);
}
.card-filename {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-faint);
}
.project-image-wrap {
  overflow: hidden;
  height: 190px;
}
.project-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s var(--ease);
}
.project-card:hover img {
  transform: scale(1.06);
}

.project-content {
  padding: 22px 22px 26px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}
.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.project-tags span {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--amber);
  background: var(--amber-dim);
  border: 1px solid rgba(245, 166, 35, 0.3);
  padding: 4px 9px;
  border-radius: 999px;
}
.project-content h3 {
  font-size: 1.08rem;
}
.project-content p {
  color: var(--text-muted);
  font-size: 0.9rem;
  flex: 1;
}
.project-link-text {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--mint);
  margin-top: 4px;
  transition: gap 0.25s var(--ease);
}
.project-card:hover .project-link-text {
  gap: 12px;
}
.locked-project {
  opacity: 0.6;
  cursor: not-allowed;
}
.locked-project:hover {
  transform: none;
  box-shadow: none;
}
.locked-project:hover::before {
  transform: scaleX(0);
}
.locked-text {
  color: var(--text-faint);
}

.projects-arrow {
  flex: 0 0 auto;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s var(--ease);
}
.projects-arrow:hover {
  border-color: var(--mint);
  color: var(--mint);
  transform: scale(1.06);
}

/* ==========================================================================
   Contact
   ========================================================================== */
.contact-box {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.contact-link {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.3s var(--ease);
}
.contact-link i {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--mint-dim);
  color: var(--mint);
  font-size: 1.1rem;
}
.contact-link:hover {
  transform: translateY(-4px);
  border-color: var(--mint);
  box-shadow: 0 20px 40px -24px rgba(var(--shadow-rgb), 0.55);
}

.contact-form-cta {
  margin-top: 28px;
}

.contact-form-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 30px 60px -30px rgba(var(--shadow-rgb), 0.6);
}
.contact-form {
  padding: 30px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.form-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 18px;
}
.form-field {
  display: flex;
  flex-direction: column;
  gap: 9px;
  min-width: 0;
}
.form-field label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.form-field.required label::after {
  content: " *";
  color: var(--mint);
}
.form-field label::before {
  content: "> ";
  color: var(--mint);
}
.contact-form input,
.contact-form textarea {
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 13px 14px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  resize: vertical;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--mint);
  background: var(--surface-3);
}
.contact-form input.field-error,
.contact-form textarea.field-error {
  border-color: var(--red);
}
.form-footer {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}
.form-status {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-faint);
  margin: 0;
}
.form-status.success {
  color: var(--mint);
}
.form-status.error {
  color: var(--red);
}

@media (max-width: 640px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ==========================================================================
   Dedicated contact page
   ========================================================================== */
.navbar a.active {
  color: var(--mint);
  background: var(--mint-dim);
}

.contact-page-grid {
  display: grid;
  grid-template-columns: 45% 55%;
  gap: 2rem;
  align-items: start;
}

.contact-info-column {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-json-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 30px 60px -30px rgba(var(--shadow-rgb), 0.6);
}
.contact-json-body {
  margin: 0;
  padding: 22px 24px;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  line-height: 1.85;
  color: var(--text-muted);
  overflow-x: auto;
}
.contact-json-body .json-key {
  color: var(--violet);
}
.contact-json-body .json-string {
  color: var(--mint);
}
.contact-json-body .json-punct {
  color: var(--text-faint);
}

.contact-meta-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.contact-meta-item {
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.contact-meta-item+.contact-meta-item {
  border-left: 1px solid var(--border);
}
.contact-meta-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.contact-meta-value {
  font-size: 0.92rem;
  color: var(--text-primary);
  font-weight: 500;
}

.contact-page .contact-box {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.contact-page .contact-link {
  flex-direction: row;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  background: transparent;
  border: none;
  border-radius: 0;
}
.contact-page .contact-link+.contact-link {
  border-top: 1px solid var(--border);
}
.contact-page .contact-link i {
  width: 34px;
  height: 34px;
  font-size: 0.9rem;
}
main .contact-page .contact-link:hover {
  transform: none;
  box-shadow: none;
  background: var(--surface-2);
}
main .contact-page .contact-link:hover i {
  color: var(--mint);
}

.back-home-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 36px;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s var(--ease), gap 0.2s var(--ease);
}
.back-home-link:hover {
  color: var(--mint);
  gap: 14px;
}

/* ==========================================================================
   Thank-you page
   ========================================================================== */
.thank-you-section {
  min-height: 90vh;
  display: flex;
  align-items: center;
  padding-top: 160px;
}
.thank-you-card {
  max-width: 560px;
  margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 30px 60px -30px rgba(var(--shadow-rgb), 0.6);
}
.thank-you-body {
  padding: 48px 40px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}
.thank-you-icon {
  font-size: 2.6rem;
  color: var(--mint);
  margin-bottom: 14px;
}
.thank-you-body .eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--mint);
  margin-bottom: 6px;
}
.thank-you-body .eyebrow::before {
  content: "// ";
  color: var(--text-faint);
}
.thank-you-body h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: 8px;
}
.thank-you-body p {
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 400px;
  margin-bottom: 20px;
}
.thank-you-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: center;
}

@media (max-width: 900px) {
  .contact-page-grid {
    grid-template-columns: 1fr;
  }
  .contact-meta-row {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  border-top: 1px solid var(--border);
  padding: 34px 0;
}
.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-links {
  display: flex;
  gap: 14px;
}
.footer-links a {
  width: 38px;
  height: 38px;
  border-radius: 9px;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: all 0.25s var(--ease);
}
.footer-links a:hover {
  color: var(--void);
  background: var(--mint);
  border-color: var(--mint);
}
#footer-text {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-faint);
  margin: 0;
}

/* ==========================================================================
   Chatbot
   ========================================================================== */
.chatbot-toast {
  position: fixed;
  right: 28px;
  bottom: 100px;
  z-index: 90;
  max-width: 280px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px 40px 16px 18px;
  box-shadow: 0 20px 50px -20px rgba(var(--shadow-rgb), 0.6);
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: all 0.35s var(--ease);
}
.chatbot-toast.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.chatbot-toast-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--mint);
  display: block;
  margin-bottom: 6px;
}
.chatbot-toast p {
  font-size: 0.85rem;
  color: var(--text-muted);
}
.chatbot-toast-close {
  position: absolute;
  top: 10px;
  right: 10px;
  background: none;
  border: none;
  color: var(--text-faint);
  font-size: 0.9rem;
}

.chatbot-toggle {
  position: fixed;
  right: 28px;
  bottom: 28px;
  z-index: 95;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  border: none;
  background: var(--mint);
  color: var(--on-accent);
  font-size: 1.3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 16px 40px -12px rgba(61, 220, 151, 0.6);
  transition: transform 0.25s var(--ease);
}
.chatbot-toggle:hover {
  transform: scale(1.07);
}
.chatbot-toggle.chatbot-spotlight {
  animation: spotlight 1.3s ease-in-out infinite;
}
@keyframes spotlight {
  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(61, 220, 151, 0.55);
  }
  50% {
    box-shadow: 0 0 0 14px rgba(61, 220, 151, 0);
  }
}

.chatbot-window {
  position: fixed;
  right: 28px;
  bottom: 98px;
  z-index: 95;
  width: 370px;
  height: min(540px, calc(100vh - 150px));
  background: rgba(var(--glass-rgb), 0.88);
  border: 1px solid var(--border-strong);
  border-radius: 24px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 30px 70px -20px rgba(var(--shadow-rgb), 0.7);
  opacity: 0;
  transform: translateY(16px) scale(0.98);
  pointer-events: none;
  transition: all 0.3s var(--ease);
  overflow: hidden;
  backdrop-filter: blur(20px) saturate(140%);
}
.chatbot-window.active {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.chatbot-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px;
  background: linear-gradient(135deg, rgba(61, 220, 151, 0.14), rgba(139, 124, 246, 0.12));
  border-bottom: 1px solid var(--border);
}
.chatbot-header h3 {
  font-size: 0.95rem;
  font-family: var(--font-mono);
  display: flex;
  align-items: center;
  gap: 9px;
}
.chatbot-header h3::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 0 rgba(61, 220, 151, 0.6);
  animation: pulse-dot 2s infinite;
}
.chatbot-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1rem;
}

.chatbot-body {
  padding: 18px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}
.bot-message a {
  color: var(--mint);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.bot-message,
.user-message {
  min-width: 0;
  flex-shrink: 0;
  overflow-wrap: anywhere;
  max-width: 88%;
  padding: 11px 14px;
  border-radius: 12px;
  font-size: 0.88rem;
  line-height: 1.5;
}
.bot-message {
  background: var(--surface-2);
  border: 1px solid var(--border);
  align-self: flex-start;
  border-bottom-left-radius: 4px;
}
.user-message {
  background: var(--mint);
  color: var(--on-accent);
  align-self: flex-end;
  border-bottom-right-radius: 4px;
  font-weight: 500;
}
.chatbot-examples p {
  font-size: 0.8rem;
  color: var(--text-faint);
  margin-bottom: 8px;
}
.chatbot-suggestion-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.chatbot-suggestion {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  white-space: nowrap;
  text-align: left;
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(61, 220, 151, 0.4);
  padding: 0 0 3px 0;
  border-radius: 0;
  color: var(--text-muted);
  font-size: 0.85rem;
  font: inherit;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), gap 0.2s var(--ease);
}
.chatbot-suggestion::before {
  content: "→";
  color: var(--mint);
  font-weight: 700;
}
.chatbot-suggestion:hover {
  color: var(--mint);
  border-bottom-color: var(--mint);
  gap: 11px;
}

/* ── Typing indicator ── */
.typing-indicator {
  align-self: flex-start;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px 14px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  border-bottom-left-radius: 4px;
  animation: fade-in 0.2s var(--ease);
}
@keyframes fade-in {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}
.typing-dots {
  display: flex;
  gap: 4px;
  align-items: center;
  height: 16px;
}
.typing-dots span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--mint);
  animation: dot-bounce 1.2s ease-in-out infinite;
}
.typing-dots span:nth-child(2) { animation-delay: 0.2s; }
.typing-dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes dot-bounce {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30%             { transform: translateY(-5px); opacity: 1; }
}
.typing-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-faint);
  letter-spacing: 0.04em;
}

.chatbot-input-area {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px;
  border-top: 1px solid var(--border);
}
.chatbot-input-area input {
  flex: 1;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 11px 14px;
  color: var(--text-primary);
  font-size: 0.88rem;
  font-family: var(--font-body);
}
.chatbot-input-area input:focus {
  outline: none;
  border-color: var(--mint);
}
.chatbot-input-area button {
  width: 42px;
  height: 42px;
  border-radius: 9px;
  border: none;
  background: var(--mint);
  color: var(--on-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
}

/* ==========================================================================
   Project detail pages
   ========================================================================== */
.project-detail-grid {
  grid-template-columns: 0.85fr 1.15fr;
  align-items: start;
}
@property --border-angle {
  syntax: '<angle>';
  inherits: false;
  initial-value: 0deg;
}

.project-image-frame {
  position: relative;
  border-radius: var(--radius-lg);
  padding: 2px;
  background: conic-gradient(from var(--border-angle), var(--mint), var(--violet), var(--amber), var(--mint));
  animation: border-spin 6s linear infinite;
}
.project-image-frame::after {
  content: "";
  position: absolute;
  inset: -8px;
  border-radius: inherit;
  background: conic-gradient(from var(--border-angle), var(--mint), var(--violet), var(--amber), var(--mint));
  filter: blur(20px);
  opacity: 0.45;
  z-index: -1;
  animation: border-spin 6s linear infinite;
}
@keyframes border-spin {
  to {
    --border-angle: 360deg;
  }
}
.project-image-inner {
  border-radius: calc(var(--radius-lg) - 2px);
  overflow: hidden;
  background: var(--surface-2);
}
.project-image-inner img {
  width: 100%;
  display: block;
}
#project-description-title,
#project-technologies-title,
#project-learned-title {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-primary);
}
#project-description-title::before,
#project-technologies-title::before,
#project-learned-title::before {
  content: "/* ";
  color: var(--text-faint);
  font-weight: 400;
}
#project-description-title::after,
#project-technologies-title::after,
#project-learned-title::after {
  content: " */";
  color: var(--text-faint);
  font-weight: 400;
}
#project-description,
#project-technologies,
#project-learned {
  color: var(--text-muted);
}

/* ==========================================================================
   Reveal-on-scroll
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

.about-grid .about-card.reveal:nth-child(1) {
  transition-delay: 0.05s;
}
.about-grid .about-card.reveal:nth-child(2) {
  transition-delay: 0.15s;
}
.about-grid .about-card.reveal:nth-child(3) {
  transition-delay: 0.25s;
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 980px) {
  .hero-content {
    grid-template-columns: 1fr;
  }
  .hero-image {
    order: 0;
  }
  .hero-image .browser-frame {
    max-width: 320px;
  }
  .about-grid {
    grid-template-columns: 1fr;
  }
  .contact-box {
    grid-template-columns: 1fr;
  }
  .project-detail-grid {
    grid-template-columns: 1fr;
  }
  .navbar {
    display: none;
  }
  .menu-toggle {
    display: flex;
  }

  body.menu-open::after {
    content: "";
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    z-index: 89;
    animation: menu-fade-in 0.25s var(--ease);
  }

  .navbar.active {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 68px;
    right: 20px;
    left: auto;
    width: min(230px, calc(100vw - 40px));
    background: var(--surface);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-md);
    padding: 8px;
    gap: 0;
    box-shadow: 0 30px 60px -20px rgba(var(--shadow-rgb), 0.7);
    z-index: 90;
    animation: menu-in 0.22s var(--ease);
  }
  .navbar.active a {
    padding: 12px 14px;
    border-radius: 8px;
    font-size: 0.9rem;
    transition: background 0.2s var(--ease), color 0.2s var(--ease);
  }
  .navbar.active a:hover {
    background: var(--chip-bg-hover);
    color: var(--mint);
  }
  .navbar.active a+a {
    border-top: 1px solid var(--border);
    margin-top: 2px;
  }
}

@keyframes menu-in {
  from {
    opacity: 0;
    transform: translateY(-8px) scale(0.97);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}
@keyframes menu-fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@media (max-width: 720px) {
  #projects .projects-arrow {
    opacity: 0.8;
  }
  /* Show arrows on mobile, subtle */
  .projects-arrow {
    display: flex;
    width: 32px;
    height: 32px;
    opacity: 0.4;
    border-color: var(--border-strong);
    background: var(--surface);
    font-size: 0.8rem;
  }
  .projects-arrow:hover {
    opacity: 1;
    border-color: var(--mint);
    color: var(--mint);
  }

  .projects-wrapper {
    gap: 6px;
  }
  .projects-track {
    padding: 6px 0 18px;
    scroll-padding-left: 0;
    gap: 16px;
    align-items: flex-start;
  }
  .project-card {
    flex: 0 0 100%;
    min-width: 0;
    max-width: 100%;
  }
  .project-content p {
    flex: none;
  }
  .project-content {
    overflow-wrap: anywhere;
  }

  .skills-tab-list {
    flex-wrap: nowrap;
    overflow-x: auto;
    scrollbar-width: none;
    padding-bottom: 2px;
    margin-bottom: 24px;
  }
  .skills-tab-list::-webkit-scrollbar {
    display: none;
  }
  .skills-tab {
    flex: 0 0 auto;
    white-space: nowrap;
  }
  .skills-pills {
    justify-content: center;
  }
}

/* ==========================================================================
   MOBILE PHONE FIXES — all breakpoints below 600px
   ========================================================================== */
@media (max-width: 600px) {
  .section {
    padding: 90px 0;
  }
  .hero {
    padding-top: 110px;
  }
  .hero-image .browser-frame {
    max-width: 260px;
  }

  /* Hero: smaller terminal & browser on mobile */
  .hero-terminal {
    max-width: 100%;
  }
  .browser-frame {
    max-width: 100%;
  }
  .hero-content {
    gap: 40px;
  }
  .terminal-body {
    font-size: 0.8rem;
    padding: 16px 16px 20px;
    min-height: 76px;
  }
  .terminal-bar {
    padding: 10px 12px;
  }
  .terminal-bar .dot {
    width: 9px;
    height: 9px;
  }
  .terminal-title {
    font-size: 0.68rem;
  }
  .browser-bar {
    padding: 10px 12px;
  }
  .browser-bar .dot {
    width: 9px;
    height: 9px;
  }
  .browser-url {
    font-size: 0.6rem;
    padding: 3px 8px;
  }

  /* Skills: smaller pills & tabs */
  .skills-pills {
    gap: 6px;
  }
  .skill.card {
    font-size: 0.75rem;
    padding: 6px 10px;
    margin-top: 6px;
  }
  .skills-tab {
    font-size: 0.78rem;
    padding: 8px 12px;
    gap: 6px;
  }
  .skills-group-panel {
    padding: 22px;
  }

  /* Contact page: JSON card & meta row */
  .contact-json-body {
    font-size: 0.7rem;
    padding: 14px 16px;
    line-height: 1.7;
  }
  .contact-meta-item {
    padding: 12px 14px;
  }
  .contact-meta-value {
    font-size: 0.85rem;
  }
  .contact-page .contact-link {
    padding: 12px 14px;
    font-size: 0.88rem;
    gap: 12px;
  }
  .contact-page .contact-link i {
    width: 28px;
    height: 28px;
    font-size: 0.8rem;
  }

  /* Contact form */
  .contact-form {
    padding: 22px;
  }
  .contact-form input,
  .contact-form textarea {
    font-size: 0.88rem;
    padding: 11px 12px;
  }
  .form-field label {
    font-size: 0.74rem;
  }

  /* ----- CHATBOT MOBILE FIXES ----- */
  .chatbot-window {
    left: 12px;
    right: 12px;
    width: auto;
    bottom: 88px;
    height: min(560px, calc(100vh - 120px)); /* taller to avoid scroll */
    border-radius: 18px;
  }
  .chatbot-toggle {
    right: 12px;
    bottom: 20px;
    width: 50px;
    height: 50px;
    font-size: 1.1rem;
  }
  .chatbot-toast {
    right: 12px;
    bottom: 80px;
    max-width: calc(100% - 24px);
    padding: 14px 36px 14px 14px;
  }
  .chatbot-toast p {
    font-size: 0.8rem;
  }
  .chatbot-header {
    padding: 14px;
  }
  .chatbot-header h3 {
    font-size: 0.85rem;
  }
  .chatbot-body {
    padding: 14px;
  }
  .bot-message,
  .user-message {
    font-size: 0.82rem;
    padding: 9px 12px;
  }
  .chatbot-input-area {
    padding: 10px 12px;
  }
  .chatbot-input-area input {
    font-size: 0.82rem;
    padding: 9px 12px;
  }
  .chatbot-input-area button {
    width: 38px;
    height: 38px;
    font-size: 0.85rem;
  }
  /* --------------------------------- */

  /* Thank-you page */
  .thank-you-body {
    padding: 34px 24px;
  }
  .thank-you-body h2 {
    font-size: 1.4rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 20px;
  }
  .section {
    padding: 70px 0;
  }
  .hero {
    padding-top: 130px;
    padding-bottom: 60px;
  }
  #hero-name {
    font-size: clamp(1.9rem, 9vw, 2.4rem);
  }
  .section-title {
    margin-bottom: 40px;
  }
  .section-title h2 {
    font-size: clamp(1.5rem, 6vw, 1.8rem);
  }
  .card,
  .about-card {
    padding: 22px;
  }
  .about-card h3 {
    font-size: 0.85rem;
  }
  .about-card p {
    font-size: 0.88rem;
  }

  /* Hero buttons stack on very small screens */
  .hero-buttons .btn {
    font-size: 0.8rem;
    padding: 11px 18px;
  }
  .hero-buttons {
    gap: 10px;
  }

  /* Projects: smaller cards, arrows a bit smaller */
  .project-card {
    flex: 0 0 100%;
    max-width: 100%;
  }
  .project-image-wrap {
    height: 150px;
  }
  .project-content {
    padding: 16px 16px 20px;
  }
  .project-content h3 {
    font-size: 0.95rem;
  }
  .project-content p {
    font-size: 0.82rem;
  }
  .project-tags span {
    font-size: 0.6rem;
    padding: 3px 7px;
  }
  .project-link-text {
    font-size: 0.8rem;
  }
  .projects-arrow {
    width: 28px;
    height: 28px;
    font-size: 0.7rem;
    opacity: 0.3;
  }

  /* Skills */
  .skills-group-title {
    font-size: 1rem;
  }
  .skills-group-description {
    font-size: 0.82rem;
  }
  .skills-group-panel {
    padding: 18px;
  }
  .skills-tab {
    font-size: 0.72rem;
    padding: 6px 10px;
  }

  /* Contact page */
  .contact-page-grid {
    gap: 1.2rem;
  }
  .contact-json-body {
    font-size: 0.6rem;
    padding: 12px 14px;
    line-height: 1.6;
  }
  .contact-meta-item {
    padding: 10px 12px;
  }
  .contact-meta-label {
    font-size: 0.6rem;
  }
  .contact-meta-value {
    font-size: 0.8rem;
  }
  .contact-page .contact-link {
    padding: 10px 12px;
    font-size: 0.82rem;
    gap: 10px;
  }
  .contact-page .contact-link i {
    width: 24px;
    height: 24px;
    font-size: 0.7rem;
  }
  .back-home-link {
    font-size: 0.82rem;
    margin-top: 28px;
  }

  /* Contact form */
  .contact-form {
    padding: 18px;
    gap: 14px;
  }
  .contact-form input,
  .contact-form textarea {
    font-size: 0.82rem;
    padding: 10px 12px;
  }
  .form-field label {
    font-size: 0.7rem;
  }
  .form-row {
    gap: 14px;
  }
  .btn {
    font-size: 0.8rem;
    padding: 10px 18px;
  }
  .form-footer {
    gap: 12px;
  }

  /* Footer */
  .footer-content {
    flex-direction: column;
    align-items: center;
    gap: 12px;
  }
  #footer-text {
    font-size: 0.7rem;
  }

  /* Nav / header */
  .logo {
    font-size: 0.85rem;
  }
  .header {
    padding: 14px 0;
  }
  .header.scrolled {
    padding: 10px 0;
  }
  .nav {
    gap: 12px;
  }
  .nav-actions {
    gap: 8px;
  }
  .theme-toggle {
    width: 34px;
    height: 34px;
    font-size: 0.8rem;
  }
  .language-switcher img {
    width: 18px;
    height: 18px;
  }
  .menu-toggle {
    width: 34px;
    height: 34px;
    font-size: 0.85rem;
  }
  .navbar.active {
    top: 60px;
    right: 12px;
    width: min(200px, calc(100vw - 24px));
  }
  .navbar.active a {
    font-size: 0.82rem;
    padding: 10px 12px;
  }

  /* Hero image wrapper */
  .image-wrapper {
    aspect-ratio: 4/4.8;
  }

  /* Project detail */
  .project-detail-grid {
    gap: 20px;
  }
  .project-image-frame {
    border-radius: var(--radius-md);
  }
  #project-description-title,
  #project-technologies-title,
  #project-learned-title {
    font-size: 0.8rem;
  }
  #project-description,
  #project-technologies,
  #project-learned {
    font-size: 0.85rem;
  }

  /* Thank-you */
  .thank-you-body {
    padding: 28px 20px;
  }
  .thank-you-icon {
    font-size: 2rem;
  }
  .thank-you-body .eyebrow {
    font-size: 0.7rem;
  }
  .thank-you-body h2 {
    font-size: 1.2rem;
  }
  .thank-you-body p {
    font-size: 0.88rem;
  }
  .thank-you-actions {
    flex-direction: column;
    align-items: center;
    gap: 10px;
  }
  .thank-you-actions .btn {
    width: 100%;
    justify-content: center;
  }

  /* Chatbot extra adjustments for small phones */
  .chatbot-window {
    left: 8px;
    right: 8px;
    bottom: 80px;
    height: min(480px, calc(100vh - 110px));
    border-radius: 16px;
  }
  .chatbot-toggle {
    right: 8px;
    bottom: 16px;
    width: 44px;
    height: 44px;
    font-size: 0.95rem;
  }
  .chatbot-toast {
    right: 8px;
    bottom: 72px;
    max-width: calc(100% - 16px);
    padding: 12px 28px 12px 12px;
  }
}

/* Extra-tiny screens (320px and below) */
@media (max-width: 360px) {
  .container {
    padding: 0 14px;
  }
  .hero {
    padding-top: 110px;
    padding-bottom: 40px;
  }
  #hero-name {
    font-size: 1.6rem;
  }
  #hero-title {
    font-size: 0.85rem;
  }
  .hero-description {
    font-size: 0.88rem;
  }
  .hero-badge {
    font-size: 0.65rem;
    padding: 5px 10px;
  }
  .hero-buttons .btn {
    font-size: 0.7rem;
    padding: 8px 14px;
  }
  .social-links a {
    width: 34px;
    height: 34px;
    font-size: 0.8rem;
  }
  .section-title h2 {
    font-size: 1.3rem;
  }
  .section-title p {
    font-size: 0.88rem;
  }
  .project-card {
    flex: 0 0 100%;
    max-width: 100%;
  }
  .project-image-wrap {
    height: 120px;
  }
  .skill.card {
    font-size: 0.65rem;
    padding: 4px 8px;
  }
  .projects-arrow {
    width: 24px;
    height: 24px;
    font-size: 0.6rem;
    opacity: 0.2;
  }

  .chatbot-window {
    left: 6px;
    right: 6px;
    bottom: 74px;
    height: min(420px, calc(100vh - 100px));
    border-radius: 14px;
  }
  .chatbot-toggle {
    right: 6px;
    bottom: 14px;
    width: 40px;
    height: 40px;
    font-size: 0.85rem;
  }
  .chatbot-toast {
    right: 6px;
    bottom: 68px;
    max-width: calc(100% - 12px);
    padding: 10px 24px 10px 10px;
  }
}

.documentation-section { scroll-margin-top: 100px; padding-top: 24px; }
.documentation-section p { margin: 16px 0; }
.documentation-frame { width: 100%; height: 80vh; min-height: 420px; border: 1px solid var(--border); border-radius: 12px; background: white; }

.documentation-viewer { max-height: 80vh; overflow-y: auto; overscroll-behavior-y: contain; border: 1px solid var(--border); border-radius: 12px; background: #ddd; padding: 12px; }
.documentation-viewer img { display: block; width: 100%; max-width: 1000px; height: auto; margin: 0 auto 12px; background: white; }
.documentation-viewer:focus-visible { outline: 2px solid var(--green); outline-offset: 4px; }

/* Project dates on cards and detail pages. */
.project-content .project-period,
.section-title .project-period {
  margin: 8px 0;
  font-family: var(--font-mono, monospace);
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* A quiet button treatment for opening the documentation PDF. */
#documentation-fallback {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  background: var(--chip-bg);
  color: var(--text-primary);
  font-size: 0.88rem;
  font-weight: 500;
  text-decoration: none;
  transition: background 0.2s ease, border-color 0.2s ease;
}
#documentation-fallback::after {
  content: "↗";
  color: var(--text-muted);
}
#documentation-fallback:hover {
  background: var(--chip-bg-hover);
  border-color: var(--mint);
}
#documentation-fallback:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 3px;
}

/* Section padding already clears the fixed menu; keep the anchor close to the heading. */
#projects {
  scroll-margin-top: -15px;
}

/* Project picker integrated into the heading eyebrow. */
.project-detail-section { padding-top: 150px; }
#project-switcher { margin-bottom: 16px; }
.project-picker { display: inline-flex; align-items: center; gap: 7px; text-align: left; }
.project-picker-arrow {
  display: grid;
  place-items: center;
  width: 26px;
  height: 32px;
  border-radius: 7px;
  color: var(--text-muted);
  font-size: 1.45rem;
  line-height: 1;
}
.project-picker-arrow:hover { color: var(--mint); background: var(--mint-dim); }
.project-picker-menu { position: relative; }
.project-picker-menu summary {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 7px 10px;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  background: var(--surface);
  color: var(--mint);
  font: 0.76rem var(--font-mono);
  cursor: pointer;
  list-style: none;
}
.project-picker-menu summary::-webkit-details-marker { display: none; }
.project-picker-label::before { content: "// "; color: var(--text-faint); }
.project-picker-menu[open] summary { border-color: var(--mint); }
.project-picker-popup {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  width: max-content;
  max-width: min(1060px, calc(100vw - 100px));
  padding: 5px;
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  background: var(--surface);
  box-shadow: 0 12px 30px rgba(0,0,0,0.22);
}
.project-picker-options {
  position: relative;
  display: flex;
  gap: 3px;
  min-width: 0;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.project-picker-options::-webkit-scrollbar { display: none; }
.project-picker-scroll {
  display: none;
  flex: 0 0 25px;
  height: 32px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--mint);
  font-size: 1.3rem;
  cursor: pointer;
}
.project-picker-popup.has-overflow .project-picker-scroll { display: block; }
.project-picker-scroll:disabled { opacity: 0.25; cursor: default; }
.project-picker-scroll:focus-visible { outline: 2px solid var(--mint); }
.project-picker-options a {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 6px;
  padding: 9px 8px;
  border-radius: 7px;
  color: var(--text-muted);
  font-size: 0.73rem;
  line-height: 1.5;
  white-space: nowrap;
}
.project-picker-number { flex: 0 0 auto; font: 0.67rem var(--font-mono); opacity: 0.65; }
.project-picker-options a:hover { background: var(--chip-bg-hover); color: var(--text-primary); }
.project-picker-options a[aria-current="page"] { background: var(--mint-dim); color: var(--mint); }
.project-picker a:focus-visible, .project-picker summary:focus-visible { outline: 2px solid var(--mint); outline-offset: 2px; }
@media (max-width: 600px) {
  .project-detail-section { padding-top: 115px; }
}

/* Light mode: defined surfaces, readable details, and restrained decoration. */
html[data-theme="light"] { color-scheme: light; }
html:not([data-theme="light"]) { color-scheme: dark; }
html[data-theme="light"] body::before { opacity: 0.18; }
html[data-theme="light"] .background-blur { opacity: 0.045; }
html[data-theme="light"] .hero::before { opacity: 0.18; }
html[data-theme="light"] .header {
  background: rgba(245, 246, 247, 0.95);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
}
html[data-theme="light"] .navbar { background: var(--surface); border-color: var(--border); }
.navbar a[aria-current] { background: var(--mint-dim); color: var(--mint); }
html[data-theme="light"] .hero-terminal,
html[data-theme="light"] .browser-frame,
html[data-theme="light"] .project-card,
html[data-theme="light"] .about-card,
html[data-theme="light"] .skills-group-panel,
html[data-theme="light"] .contact-link,
html[data-theme="light"] .contact-json-card,
html[data-theme="light"] .contact-form-card,
html[data-theme="light"] .thank-you-card,
html[data-theme="light"] .chatbot-window {
  border-color: var(--border);
  box-shadow: 0 3px 6px rgba(24,37,45,0.025), 0 10px 24px rgba(24,37,45,0.045);
}
html[data-theme="light"] .project-card:hover,
html[data-theme="light"] .about-card:hover,
html[data-theme="light"] .browser-frame:hover,
html[data-theme="light"] .hero-terminal:hover,
html[data-theme="light"] .contact-link:hover {
  border-color: var(--border-strong);
  box-shadow: 0 7px 20px rgba(24,37,45,0.09);
}
html[data-theme="light"] .browser-bar,
html[data-theme="light"] .terminal-bar,
html[data-theme="light"] .card-chrome { background: var(--surface-2); border-bottom-color: var(--border); }
html[data-theme="light"] .btn-primary { box-shadow: 0 2px 3px rgba(8,119,78,0.12); }
html[data-theme="light"] .btn-primary:hover { box-shadow: 0 5px 14px rgba(8,119,78,0.2); }
html[data-theme="light"] .hero-badge::before,
html[data-theme="light"] .chatbot-toggle,
html[data-theme="light"] .chatbot-status-dot { animation: none; }
html[data-theme="light"] .skills-tab.active { box-shadow: inset 0 0 0 1px rgba(8,119,78,0.32); }
html[data-theme="light"] .skill-level-beginner {
  --skill-bg: #ffd095;
  --skill-ink: #623600;
  --skill-border: #dea64f;
}
html[data-theme="light"] .contact-form input,
html[data-theme="light"] .contact-form textarea { background: #fafbfc; border-color: #b7c2ca; }
html[data-theme="light"] .contact-form input:focus,
html[data-theme="light"] .contact-form textarea:focus {
  background: var(--surface);
  border-color: var(--mint);
  box-shadow: 0 0 0 3px var(--mint-dim);
}
html[data-theme="light"] .contact-form input.field-error,
html[data-theme="light"] .contact-form textarea.field-error { border-color: #bd3030; }
html[data-theme="light"] .form-field label { color: var(--text-primary); }
html[data-theme="light"] .contact-meta-row { background: var(--surface); }
html[data-theme="light"] .project-picker-popup { box-shadow: 0 8px 24px rgba(24,37,45,0.12); }
html[data-theme="light"] .documentation-viewer { background: var(--surface-2); }
/* Tighter section rhythm while preserving room for anchor navigation. */
@media (min-width: 901px) {
  #about.section, #skills.section, #projects.section, #contact.section { padding-top: 100px; padding-bottom: 100px; }
}
.chatbot-toast {
  max-width: 235px;
  padding: 12px 32px 12px 14px;
}
.chatbot-toast p { font-size: 0.78rem; line-height: 1.55; }
@media (max-width: 600px) {
  .chatbot-toast { max-width: min(235px, calc(100vw - 24px)); }
}

/* Contract and availability information in the introduction. */
.hero-facts { display: flex; flex-wrap: wrap; gap: 24px; margin: 25px 0; padding: 16px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.hero-facts div { display: flex; flex-direction: column; gap: 4px; }
.hero-facts span { font: 0.65rem var(--font-mono); color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.07em; }
.hero-facts strong { font-size: 0.83rem; font-weight: 600; }
@media (max-width: 600px) {
  .hero-facts { gap: 18px; }
  .hero-facts strong { font-size: 0.76rem; }
}

/* Contrasting browser-style headers for project cards in light mode. */
html[data-theme="light"] .project-card .card-chrome {
  background: #e2e5e9;
  border-bottom-color: #c4cad2;
}
html[data-theme="light"] .project-card .card-filename {
  color: #4b5563;
}

/* Consistent dark-green title bars across all code-style windows. */
html[data-theme="light"] .terminal-bar,
html[data-theme="light"] .browser-bar,
html[data-theme="light"] .card-chrome {
  background: #e2e5e9;
  border-bottom-color: #c4cad2;
}
html[data-theme="light"] .terminal-title,
html[data-theme="light"] .browser-url,
html[data-theme="light"] .card-filename {
  color: #4b5563;
}
html[data-theme="light"] .browser-url {
  background: rgba(75, 85, 99, 0.06);
}

/* Labeled competency rows: category, divider, and the associated skills. */
.competency-rows { display: flex; flex-direction: column; gap: 22px; }
.competency-row { display: grid; grid-template-columns: 155px 1px minmax(0, 1fr); align-items: center; gap: 22px; }
.competency-row-label { font: 0.73rem/1.6 var(--font-mono); color: var(--text-muted); overflow-wrap: anywhere; }
.competency-row .skill.card { margin-top: 0; }
.competency-row-divider { align-self: stretch; min-height: 32px; background: var(--border-strong); }
.competency-row-content { min-width: 0; }
.competency-row-caption { display: block; margin-bottom: 10px; color: var(--text-muted); font: 0.7rem/1.6 var(--font-mono); }
@media (max-width: 600px) {
  .competency-rows { gap: 24px; }
  .competency-row { grid-template-columns: minmax(0, 1fr); gap: 10px; }
  .competency-row-divider { min-height: 0; height: 1px; }
  .competency-row .skills-pills { justify-content: flex-start; }
}