/* ============================================================
   DESIGN SYSTEM — Premium Dark Developer Portfolio
   ============================================================ */

/* — Google Fonts — */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500;600;700;800;900&display=swap');

/* — Custom Properties — */
:root {
  /* Backgrounds */
  --bg-primary: #0a0a0f;
  --bg-secondary: #0e0e16;
  --bg-card: rgba(18, 18, 30, 0.65);
  --bg-card-hover: rgba(25, 25, 45, 0.8);
  --bg-modal: rgba(6, 6, 12, 0.92);
  --bg-nav: rgba(10, 10, 15, 0.85);
  --bg-nav-scrolled: rgba(10, 10, 15, 0.97);

  /* Accent */
  --accent: #6c63ff;
  --accent-light: #8b83ff;
  --accent-bg: rgba(108, 99, 255, 0.10);

  /* Text */
  --text-primary: #eaeaf0;
  --text-secondary: #a0a0b8;
  --text-muted: #5a5a72;
  --text-accent: #8b83ff;

  /* Borders */
  --border-card: rgba(108, 99, 255, 0.12);
  --border-glow: rgba(108, 99, 255, 0.35);

  /* Spacing Scale */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 200ms;
  --duration-normal: 350ms;
  --duration-slow: 600ms;

  /* Shadows */
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.35), 0 0 0 1px var(--border-card);
  --shadow-glow: 0 0 30px rgba(108, 99, 255, 0.15);
  --shadow-modal: 0 25px 80px rgba(0, 0, 0, 0.6);

  /* Layout */
  --container-max: 1200px;
  --nav-height: 72px;
}

/* — Light Theme — */
[data-theme="light"] {
  /* Backgrounds */
  --bg-primary: #f7f8fc;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #f0f1ff;
  --bg-modal: rgba(247, 248, 252, 0.98);
  --bg-nav: rgba(247, 248, 252, 0.94);
  --bg-nav-scrolled: rgba(247, 248, 252, 0.99);

  /* Accent — keep vibrant */
  --accent: #5148c7;
  --accent-light: #6d65dc;
  --accent-bg: #eeedff;

  /* Text */
  --text-primary: #171827;
  --text-secondary: #4b4e65;
  --text-muted: #71758d;
  --text-accent: #5148c7;

  /* Borders */
  --border-card: #dfe1ef;
  --border-glow: #5148c7;

  /* Shadows */
  --shadow-card: 0 2px 16px rgba(0, 0, 0, 0.06), 0 0 0 1px var(--border-card);
  --shadow-glow: 0 0 24px rgba(91, 82, 224, 0.10);
  --shadow-modal: 0 25px 60px rgba(0, 0, 0, 0.12);
}

/* Light theme specific overrides for hardcoded colors */
[data-theme="light"] .nav.scrolled {
  border-bottom-color: #d7d9e8;
}

[data-theme="light"] .hero-console {
  background: #ffffff;
  border: 2px solid #5148c7;
  color: #171827;
}

[data-theme="light"] .console-body {
  background: #171827;
  border-left: 0;
  color: #ffffff;
}

[data-theme="light"] .console-topbar,
[data-theme="light"] .console-tabs {
  background: #eef0f8;
}

[data-theme="light"] .console-title,
[data-theme="light"] .console-muted {
  color: #68708a;
}

[data-theme="light"] .console-value {
  color: #ffffff;
  font-weight: 700;
}

[data-theme="light"] .console-body .console-muted {
  color: #aeb6ca;
}

[data-theme="light"] .console-body .console-value span {
  color: #a99fff;
}

[data-theme="light"] .console-meta {
  color: #c4c9d8;
}

[data-theme="light"] .console-dots i {
  border-color: #9a9eb4;
}

[data-theme="light"] .console-meter {
  background: #30364a;
  border-color: #59617a;
}

[data-theme="light"] .console-tab:hover,
[data-theme="light"] .console-tab.active {
  background: #eeedff;
  color: #39328f;
  border-color: #5148c7;
}

[data-theme="light"] .cursor-ring {
  border-color: var(--accent);
}

[data-theme="light"] .btn-primary {
  background: #5148c7;
}

[data-theme="light"] .btn-outline:hover {
  color: #39328f;
}

[data-theme="light"] .skill-bar {
  background: rgba(0, 0, 0, 0.06);
}

[data-theme="light"] .contrib-cell {
  background: rgba(91, 82, 224, 0.06);
}

[data-theme="light"] .contrib-cell.level-1 {
  background: rgba(91, 82, 224, 0.15);
}

[data-theme="light"] .contrib-cell.level-2 {
  background: rgba(91, 82, 224, 0.30);
}

[data-theme="light"] .contrib-cell.level-3 {
  background: rgba(91, 82, 224, 0.50);
}

[data-theme="light"] .contrib-cell.level-4 {
  background: rgba(91, 82, 224, 0.75);
}

[data-theme="light"] .project-card-overlay {
  background: rgba(255, 255, 255, 0.48);
}

[data-theme="light"] .modal-close {
  background: rgba(0, 0, 0, 0.04);
}

[data-theme="light"] .modal-close:hover {
  background: rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .tag {
  background: rgba(91, 82, 224, 0.08);
  border-color: rgba(91, 82, 224, 0.12);
}

[data-theme="light"] .filter-btn:hover {
  background: rgba(91, 82, 224, 0.06);
}

[data-theme="light"] .btn-outline:hover {
  background: rgba(91, 82, 224, 0.08);
}

[data-theme="light"] .badge-work {
  background: rgba(91, 82, 224, 0.10);
  border-color: rgba(91, 82, 224, 0.15);
}

[data-theme="light"] .badge-edu {
  background: rgba(0, 180, 230, 0.08);
  border-color: rgba(0, 180, 230, 0.15);
}

/* — Theme Toggle Button — */
.theme-toggle {
  position: relative;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-out);
  margin-left: var(--space-md);
  margin-right: var(--space-sm);
  z-index: 1001;
  backdrop-filter: blur(8px);
  flex-shrink: 0;
}

.theme-toggle:hover {
  border-color: var(--border-glow);
  transform: scale(1.08);
  box-shadow: var(--shadow-glow);
}

.theme-toggle-icon {
  position: relative;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.theme-toggle .icon-sun,
.theme-toggle .icon-moon {
  position: absolute;
  transition: opacity var(--duration-normal) var(--ease-out),
    transform var(--duration-normal) var(--ease-out);
}

/* Dark mode (default): show sun icon (switch to light) */
.theme-toggle .icon-sun {
  opacity: 1;
  transform: rotate(0deg) scale(1);
  color: var(--text-secondary);
}

.theme-toggle .icon-moon {
  opacity: 0;
  transform: rotate(-90deg) scale(0.5);
  color: var(--text-secondary);
}

/* Light mode: show moon icon (switch to dark) */
[data-theme="light"] .theme-toggle .icon-sun {
  opacity: 0;
  transform: rotate(90deg) scale(0.5);
}

[data-theme="light"] .theme-toggle .icon-moon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

/* — Reset — */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
  font-size: 16px;
}

body {
  font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  transition: background-color var(--duration-normal) var(--ease-out),
    color var(--duration-normal) var(--ease-out);
}

.scroll-progress {
  position: fixed;
  inset: 0 auto auto 0;
  width: 0;
  height: 3px;
  background: var(--accent);
  z-index: 3000;
  transition: width 80ms linear;
}

.cursor-ring {
  position: fixed;
  width: 24px;
  height: 24px;
  border: 1px solid var(--accent);
  border-radius: 50%;
  pointer-events: none;
  z-index: 3001;
  opacity: 0;
  transform: translate(-50%, -50%) scale(0.8);
  transition: opacity 160ms ease, transform 160ms ease;
}

.cursor-ring.visible {
  opacity: 0.7;
  transform: translate(-50%, -50%) scale(1);
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

ul,
ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font: inherit;
  color: inherit;
}

/* — Utilities — */
.container {
  width: 90%;
  max-width: var(--container-max);
  margin: 0 auto;
}

.section {
  padding: var(--space-4xl) 0;
  position: relative;
}

.section-label {
  font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 0.8rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--accent);
  margin-bottom: var(--space-sm);
  display: inline-block;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  margin-bottom: var(--space-md);
  letter-spacing: -0.5px;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 560px;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-header .section-subtitle {
  margin: 0 auto;
}

.gradient-text {
  color: var(--accent);
}

/* — Scroll Animations — */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity var(--duration-slow) var(--ease-out),
    transform var(--duration-slow) var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 {
  transition-delay: 80ms;
}

.reveal-delay-2 {
  transition-delay: 160ms;
}

.reveal-delay-3 {
  transition-delay: 240ms;
}

.reveal-delay-4 {
  transition-delay: 320ms;
}

.reveal-delay-5 {
  transition-delay: 400ms;
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  z-index: 1000;
  background: var(--bg-nav);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: background var(--duration-normal) var(--ease-out),
    border-color var(--duration-normal) var(--ease-out),
    box-shadow var(--duration-normal) var(--ease-out);
}

.nav.scrolled {
  background: var(--bg-nav-scrolled);
  border-bottom-color: var(--border-card);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
}

.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.5px;
}

.nav-logo span {
  color: var(--accent);
}

.nav-menu {
  margin-left: auto;
}

.nav-links {
  display: flex;
  gap: var(--space-xl);
  align-items: center;
}

.nav-link {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  transition: color var(--duration-fast) var(--ease-out);
  padding: var(--space-xs) 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transition: width var(--duration-normal) var(--ease-out);
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-cta {
  font-size: 0.85rem;
  font-weight: 600;
  padding: 8px 20px;
  border-radius: var(--radius-full);
  background: var(--accent);
  color: #fff;
  transition: transform var(--duration-fast) var(--ease-bounce),
    box-shadow var(--duration-fast) var(--ease-out);
}

.nav-cta:hover {
  transform: scale(1.04);
  box-shadow: 0 4px 20px rgba(108, 99, 255, 0.35);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 26px;
  cursor: pointer;
  z-index: 1001;
}

.hamburger span {
  display: block;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--duration-normal) var(--ease-out),
    opacity var(--duration-fast);
}

.hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.open span:nth-child(2) {
  opacity: 0;
}

.hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: min(760px, 100vh);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: var(--nav-height);
}

.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 380px);
  align-items: center;
  gap: clamp(2rem, 7vw, 6rem);
}

.hero::before {
  display: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 680px;
}

.hero-greeting {
  font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 0.95rem;
  color: var(--text-accent);
  margin-bottom: var(--space-lg);
  opacity: 0;
  animation: fadeInUp 0.6s var(--ease-out) 0.2s forwards;
}

.hero-name {
  font-size: clamp(2.5rem, 7vw, 5rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: var(--space-md);
  opacity: 0;
  animation: fadeInUp 0.6s var(--ease-out) 0.4s forwards;
}

.hero-typing-wrapper {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  color: var(--text-secondary);
  min-height: 1.5em;
  margin-bottom: var(--space-xl);
  opacity: 0;
  animation: fadeInUp 0.6s var(--ease-out) 0.6s forwards;
}

.hero-typing-wrapper .typed-text {
  color: var(--accent);
  font-weight: 600;
}

.hero-typing-wrapper .cursor {
  display: inline-block;
  width: 2px;
  height: 1.2em;
  background: var(--accent);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}

.hero-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 500px;
  line-height: 1.7;
  margin: 0 auto var(--space-2xl);
  opacity: 0;
  animation: fadeInUp 0.6s var(--ease-out) 0.8s forwards;
}

.hero-ctas {
  display: flex;
  justify-content: flex-start;
  gap: var(--space-md);
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeInUp 0.6s var(--ease-out) 1s forwards;
}

.hero-console {
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-lg);
  background: var(--bg-secondary);
  overflow: hidden;
  transform: rotate(2deg);
  transition: transform var(--duration-normal) var(--ease-out),
    border-color var(--duration-normal) var(--ease-out);
  animation: consoleEnter 800ms var(--ease-out) 500ms both;
}

.hero-console:hover {
  transform: rotate(0deg) translateY(-6px);
  border-color: var(--accent);
}

.console-topbar,
.console-meta,
.console-tabs {
  display: flex;
  align-items: center;
}

.console-topbar {
  justify-content: space-between;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-card);
  font-family: 'Montserrat', sans-serif;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.console-dots {
  display: flex;
  gap: 5px;
}

.console-dots i {
  width: 7px;
  height: 7px;
  border: 1px solid var(--text-muted);
  border-radius: 50%;
}

.console-title,
.console-muted {
  color: var(--text-muted);
}

.console-status {
  color: #22c55e;
}

.console-status b {
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 4px;
  border-radius: 50%;
  background: #22c55e;
}

.console-body {
  padding: 1.5rem;
  font-family: 'SFMono-Regular', Consolas, monospace;
}

.console-line,
.console-value {
  font-size: 0.8rem;
  line-height: 1.6;
}

.console-line:not(:first-child) {
  margin-top: 1.4rem;
}

.console-value {
  color: var(--text-primary);
}

.console-value span {
  color: var(--accent);
}

.console-meter {
  height: 5px;
  margin: 1.4rem 0 0.8rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-card);
  border-radius: 999px;
  overflow: hidden;
}

.console-meter span {
  display: block;
  width: 72%;
  height: 100%;
  background: var(--accent);
  transition: width 450ms var(--ease-out);
}

.console-meta {
  justify-content: space-between;
  gap: 1rem;
  color: var(--text-secondary);
  font-family: 'Montserrat', sans-serif;
  font-size: 0.68rem;
}

.console-tabs {
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  border-top: 1px solid var(--border-card);
}

.console-tab {
  min-width: 34px;
  padding: 0.35rem 0.55rem;
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-family: 'Montserrat', sans-serif;
  font-size: 0.7rem;
  transition: color var(--duration-fast), border-color var(--duration-fast),
    background var(--duration-fast);
}

.console-tab:hover,
.console-tab.active {
  color: var(--text-primary);
  border-color: var(--accent);
  background: var(--accent-bg);
}

@keyframes consoleEnter {
  from { opacity: 0; transform: translateY(18px) rotate(2deg); }
  to { opacity: 1; transform: translateY(0) rotate(2deg); }
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: var(--radius-full);
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform var(--duration-fast) var(--ease-bounce),
    box-shadow var(--duration-fast) var(--ease-out);
}

.btn-primary:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 8px 30px rgba(108, 99, 255, 0.35);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-glow);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--duration-normal) var(--ease-out);
}

.btn-outline:hover {
  background: rgba(108, 99, 255, 0.1);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.btn-icon {
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================================
   ABOUT
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: minmax(280px, 380px) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 2.5rem);
  align-items: center;
}

.about-image-wrapper {
  position: relative;
  width: min(100%, 380px);
  max-width: 380px;
}

.about-image {
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  overflow: hidden;
  position: relative;
  display: block;
}

.about-image::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--accent);
  opacity: 0.06;
}

.about-image-photo {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: center top;
  position: relative;
  z-index: 1;
}

.about-image-decor {
  position: absolute;
  inset: -8px;
  border-radius: var(--radius-lg);
  border: 2px solid var(--accent);
  opacity: 0.15;
  z-index: -1;
}

.about-text h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
  font-size: 0.98rem;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.about-stat {
  --about-stat-accent: #7c6cff;
  --about-stat-accent-2: #9f8cff;
  position: relative;
  overflow: hidden;
  text-align: center;
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  background: rgba(124, 108, 255, 0.08);
  border: 1px solid rgba(124, 108, 255, 0.18);
  backdrop-filter: blur(8px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.about-stat::before {
  content: '';
  position: absolute;
  inset: auto -20px -35px auto;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: rgba(124, 108, 255, 0.14);
  pointer-events: none;
  filter: blur(40px);
}

.about-stat:nth-child(2) {
  --about-stat-accent: #22d3ee;
  --about-stat-accent-2: #67e8f9;
  background: rgba(34, 211, 238, 0.08);
  border-color: rgba(34, 211, 238, 0.18);
}

.about-stat:nth-child(2)::before {
  background: rgba(34, 211, 238, 0.14);
}

.about-stat:nth-child(3) {
  --about-stat-accent: #f59e0b;
  --about-stat-accent-2: #fcd34d;
  background: rgba(245, 158, 11, 0.08);
  border-color: rgba(245, 158, 11, 0.18);
}

.about-stat:nth-child(3)::before {
  background: rgba(245, 158, 11, 0.14);
}

.about-stat-number {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--about-stat-accent);
  text-shadow: 0 0 24px rgba(124, 108, 255, 0.18);
}

.about-stat-label {
  font-size: 0.78rem;
  color: var(--about-stat-accent);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 4px;
  opacity: 0.75;
}

[data-theme='light'] .about-stat {
  background: rgba(124, 108, 255, 0.08);
}

[data-theme='light'] .about-stat:nth-child(2) {
  background: rgba(34, 211, 238, 0.08);
}

[data-theme='light'] .about-stat:nth-child(3) {
  background: rgba(245, 158, 11, 0.08);
}

/* ============================================================
   PROJECTS — Filterable Grid
   ============================================================ */
.filter-bar {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-2xl);
}

.filter-btn {
  padding: 8px 22px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  border: 1px solid var(--border-card);
  transition: all var(--duration-normal) var(--ease-out);
}

.filter-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-glow);
  background: rgba(108, 99, 255, 0.08);
}

.filter-btn.active {
  background: var(--accent);
  color: #fff;
  border-color: transparent;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr));
  gap: var(--space-xl);
}

.project-card {
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  overflow: hidden;
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-card);
  transition: transform var(--duration-normal) var(--ease-out),
    box-shadow var(--duration-normal) var(--ease-out),
    border-color var(--duration-normal);
  will-change: transform;
  transform-style: preserve-3d;
  perspective: 800px;
}

.project-card:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-card), var(--shadow-glow);
}

.project-card.hidden {
  display: none;
}

.project-card.filtering-out {
  animation: cardOut 0.3s var(--ease-out) forwards;
}

.project-card.filtering-in {
  animation: cardIn 0.4s var(--ease-out) forwards;
}

@keyframes cardOut {
  to {
    opacity: 0;
    transform: scale(0.92) translateY(10px);
  }
}

@keyframes cardIn {
  from {
    opacity: 0;
    transform: scale(0.92) translateY(10px);
  }

  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.project-card-image {
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  position: relative;
}

.project-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}

.project-card:hover .project-card-image img {
  transform: scale(1.06);
}

.project-card-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 10, 15, 0.28);
  opacity: 0;
  transition: opacity var(--duration-normal);
}

.project-card:hover .project-card-overlay {
  opacity: 1;
}

.project-card-body {
  padding: var(--space-lg);
}

.project-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: var(--space-sm);
}

.tag {
  font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 0.7rem;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  background: rgba(108, 99, 255, 0.1);
  color: var(--text-accent);
  border: 1px solid rgba(108, 99, 255, 0.15);
}

.project-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.project-card-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-md);
}

.project-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.project-card-link {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-accent);
  display: flex;
  align-items: center;
  gap: 6px;
  transition: gap var(--duration-fast) var(--ease-out);
}

.project-card-link:hover {
  gap: 10px;
}

.project-card-link .arrow {
  transition: transform var(--duration-fast) var(--ease-out);
}

.project-card-link:hover .arrow {
  transform: translateX(3px);
}

/* ============================================================
   CASE STUDY MODAL
   ============================================================ */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: var(--bg-modal);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-normal) var(--ease-out),
    visibility var(--duration-normal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl);
}

.modal-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.modal {
  width: 100%;
  max-width: 800px;
  max-height: 85vh;
  overflow-y: auto;
  background: var(--bg-secondary);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-modal);
  transform: translateY(30px) scale(0.96);
  transition: transform var(--duration-normal) var(--ease-out);
  scrollbar-width: thin;
  scrollbar-color: var(--accent) transparent;
}

.modal-backdrop.open .modal {
  transform: translateY(0) scale(1);
}

.modal::-webkit-scrollbar {
  width: 6px;
}

.modal::-webkit-scrollbar-track {
  background: transparent;
}

.modal::-webkit-scrollbar-thumb {
  background: var(--accent);
  border-radius: 3px;
}

.modal-close {
  position: absolute;
  top: var(--space-lg);
  right: var(--space-lg);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-card);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--text-secondary);
  transition: all var(--duration-fast);
  z-index: 10;
}

.modal-close:hover {
  background: rgba(255, 255, 255, 0.12);
  color: var(--text-primary);
}

.modal-hero {
  width: 100%;
  aspect-ratio: 16/9;
  overflow: hidden;
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.modal-hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.modal-content {
  padding: var(--space-2xl);
}

.modal-title {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: var(--space-sm);
}

.modal-meta {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
}

.modal-meta-item {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.modal-section {
  margin-bottom: var(--space-xl);
}

.modal-section h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: var(--text-accent);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 0.8rem;
}

.modal-section p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.8;
}

.modal-tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.modal-results {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.modal-result-card {
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  text-align: center;
}

.modal-result-value {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--accent);
}

.modal-result-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.modal-links {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

/* ============================================================
   TIMELINE RESUME
   ============================================================ */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: rgba(108, 99, 255, 0.35);
  transform: translateX(-50%);
}

.timeline-item {
  display: flex;
  justify-content: flex-end;
  width: 50%;
  padding-right: var(--space-2xl);
  position: relative;
  margin-bottom: var(--space-2xl);
}

.timeline-item:nth-child(even) {
  justify-content: flex-start;
  margin-left: 50%;
  padding-right: 0;
  padding-left: var(--space-2xl);
}

.timeline-dot {
  position: absolute;
  right: -8px;
  top: 20px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid var(--bg-primary);
  box-shadow: 0 0 12px rgba(108, 99, 255, 0.4);
  z-index: 1;
}

.timeline-item:nth-child(even) .timeline-dot {
  right: auto;
  left: -8px;
}

.timeline-card {
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  backdrop-filter: blur(8px);
  transition: border-color var(--duration-normal),
    box-shadow var(--duration-normal);
  width: 100%;
}

.timeline-card:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
}

.timeline-date {
  font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 0.75rem;
  color: var(--text-accent);
  margin-bottom: 6px;
}

.timeline-role {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 3px;
}

.timeline-company {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: var(--space-sm);
}

.timeline-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.timeline-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: var(--space-md);
}

.timeline-tags span {
  padding: 3px 8px;
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-family: 'Montserrat', sans-serif;
  font-size: 0.65rem;
  letter-spacing: 0.02em;
}

.timeline-project-link {
  display: inline-flex;
  color: var(--text-accent);
  font-size: 0.78rem;
  font-weight: 700;
  transition: color var(--duration-fast), transform var(--duration-fast);
}

.timeline-project-link:hover {
  color: var(--accent-light);
  transform: translateX(3px);
}

.timeline-type-badge {
  display: inline-block;
  font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 0.68rem;
  padding: 2px 10px;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.badge-work {
  background: rgba(108, 99, 255, 0.15);
  color: var(--accent);
  border: 1px solid rgba(108, 99, 255, 0.2);
}

.badge-edu {
  background: rgba(0, 212, 255, 0.12);
  color: #00d4ff;
  border: 1px solid rgba(0, 212, 255, 0.2);
}

/* ============================================================
   SKILLS
   ============================================================ */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-md);
}

.skill-category {
  --skill-accent: #6c63ff;
  --skill-accent-2: #8b83ff;
  --skill-accent-soft: rgba(108, 99, 255, 0.08);
  --skill-border: rgba(108, 99, 255, 0.24);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  transition: border-color var(--duration-normal) var(--ease-out),
    transform var(--duration-normal) var(--ease-out);
}

.skill-category:hover {
  transform: translateY(-3px);
  border-color: var(--skill-border);
}

.skill-category:nth-child(1) {
  --skill-accent: #7c6cff;
  --skill-accent-2: #3dd9ff;
  --skill-accent-soft: rgba(124, 108, 255, 0.16);
  --skill-border: rgba(124, 108, 255, 0.32);
}

.skill-category:nth-child(2) {
  --skill-accent: #8b5cf6;
  --skill-accent-2: #22d3ee;
  --skill-accent-soft: rgba(139, 92, 246, 0.16);
  --skill-border: rgba(34, 211, 238, 0.28);
}

.skill-category:nth-child(3) {
  --skill-accent: #06b6d4;
  --skill-accent-2: #22c55e;
  --skill-accent-soft: rgba(6, 182, 212, 0.16);
  --skill-border: rgba(6, 182, 212, 0.28);
}

.skill-category:nth-child(4) {
  --skill-accent: #f97316;
  --skill-accent-2: #facc15;
  --skill-accent-soft: rgba(249, 115, 22, 0.16);
  --skill-border: rgba(249, 115, 22, 0.28);
}

.skill-category-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.4rem;
  height: 2.4rem;
  font-size: 1.2rem;
  margin-bottom: var(--space-sm);
  color: var(--skill-accent);
  background: var(--skill-accent-soft);
  border: 1px solid var(--skill-border);
  border-radius: var(--radius-sm);
}

.skill-category-icon svg {
  width: 2rem;
  height: 2rem;
  flex-shrink: 0;
}

.skill-category-title {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

.skill-category-title::after {
  content: '';
  display: block;
  width: 36px;
  height: 2px;
  margin-top: 7px;
  border-radius: 999px;
  background: var(--skill-accent);
}

.skill-item {
  margin-bottom: 0.75rem;
  padding: 0;
}

.skill-item:last-child {
  margin-bottom: 0;
}

.skill-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.skill-name {
  font-size: 0.75rem;
  font-weight: 600;
}

.skill-pct {
  font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 0.68rem;
  color: var(--skill-accent-2);
  font-weight: 700;
}

.skill-bar {
  height: 4px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.06);
  overflow: hidden;
}

.skill-bar-fill {
  height: 100%;
  border-radius: 3px;
  background: var(--skill-accent);
  width: 0;
  transition: width 1.2s var(--ease-out);
}

[data-theme='light'] .skill-category {
  background: #ffffff;
  border-color: #dfe1ef;
}

[data-theme='light'] .skill-item {
  background: #f7f8fc;
  border-color: #e4e6f1;
}

[data-theme='light'] .skill-bar {
  background: #e5e7f0;
}

[data-theme='light'] .github-profile-card,
[data-theme='light'] .github-stat-card,
[data-theme='light'] .github-contrib,
[data-theme='light'] .github-languages {
  background: #ffffff;
  border-color: #dfe1ef;
}

[data-theme='light'] .lang-legend-item {
  background: #f7f8fc;
  border-color: #e4e6f1;
}

/* ============================================================
   GITHUB STATS
   ============================================================ */
.github-intro {
  margin-bottom: var(--space-xl);
}

.github-profile-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-lg);
  align-items: center;
  padding: clamp(1.25rem, 2vw, 1.75rem);
  border-radius: var(--radius-xl);
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(12px);
}

.github-header {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  justify-content: flex-start;
}

.github-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 2px solid var(--border-glow);
  overflow: hidden;
  box-shadow: var(--shadow-glow);
}

.github-avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.github-profile-copy {
  max-width: 40rem;
}

.github-kicker {
  font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-accent);
  margin-bottom: 0.45rem;
}

.github-profile-title {
  font-size: clamp(1.15rem, 2vw, 1.65rem);
  line-height: 1.25;
  letter-spacing: -0.03em;
  margin-bottom: 0.45rem;
}

.github-profile-desc {
  color: var(--text-secondary);
  max-width: 38rem;
}

.github-profile-cta {
  justify-self: end;
  white-space: nowrap;
}

/* ============================================================
   RESUME
   ============================================================ */
.resume-section {
  padding-top: 0;
}

.resume-card {
  overflow: hidden;
  border: 1px solid var(--border-card);
  border-radius: var(--radius-xl);
  background: var(--bg-card);
}

.resume-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xl);
  padding: clamp(1.5rem, 4vw, 2.75rem);
  border-bottom: 1px solid var(--border-card);
}

.resume-intro {
  max-width: 620px;
}

.resume-heading-row {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 1rem;
}

.resume-file-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.35rem;
  height: 2.35rem;
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  color: var(--accent);
  font-family: 'Montserrat', sans-serif;
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.05em;
}

.resume-file-label {
  display: inline-block;
  color: var(--text-accent);
  font-family: 'Montserrat', sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.resume-card h3 {
  max-width: 480px;
  margin-bottom: 0.55rem;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  letter-spacing: -0.04em;
  line-height: 1.1;
}

.resume-card p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.7;
}

.resume-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.25rem;
}

.resume-highlights span {
  padding: 0.4rem 0.65rem;
  border: 1px solid var(--border-card);
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  font-size: 0.7rem;
  font-weight: 600;
}

.resume-actions {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: var(--space-sm);
  min-width: 148px;
}

.resume-actions .btn-primary,
.resume-actions .btn-outline {
  justify-content: center;
  white-space: nowrap;
}

.resume-preview {
  margin: var(--space-xl);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-secondary);
}

.resume-preview-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-card);
  color: var(--text-secondary);
  font-family: 'Montserrat', sans-serif;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.resume-preview-meta {
  color: var(--text-muted);
}

.resume-viewer {
  height: min(680px, 68vh);
  min-height: 440px;
}

.resume-viewer object {
  width: 100%;
  height: 100%;
  border: 0;
}

.resume-viewer p {
  padding: var(--space-xl);
  text-align: center;
}

.resume-viewer a {
  color: var(--text-accent);
  font-weight: 700;
}

.github-stats-cards {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

.github-stat-card {
  padding: var(--space-xl) var(--space-lg);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  text-align: left;
  backdrop-filter: blur(8px);
  transition: transform var(--duration-fast) var(--ease-bounce),
    border-color var(--duration-fast), box-shadow var(--duration-fast);
}

.github-stat-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
}

.github-stat-eyebrow {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.github-stat-value {
  font-size: clamp(1.6rem, 3vw, 2rem);
  font-weight: 800;
  color: var(--accent);
  margin: 0.4rem 0 0.15rem;
}

.github-stat-label {
  font-size: 0.82rem;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.github-stat-meta {
  margin-top: 0.45rem;
  font-size: 0.84rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.github-panels {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(280px, 0.95fr);
  gap: var(--space-xl);
  align-items: start;
}

/* Contribution Graph */
.github-contrib {
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  box-shadow: var(--shadow-card);
}

.github-panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.github-contrib-title,
.github-lang-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.2rem;
  color: var(--text-primary);
}

.github-panel-subtitle {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.github-heat-legend {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
  color: var(--text-muted);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.contrib-graph {
  display: grid;
  grid-template-columns: repeat(52, 1fr);
  grid-template-rows: repeat(7, 1fr);
  gap: 3px;
}

.contrib-cell {
  aspect-ratio: 1;
  border-radius: 4px;
  background: rgba(108, 99, 255, 0.06);
  min-width: 0;
}

.legend-cell {
  width: 0.72rem;
  aspect-ratio: 1;
}

.contrib-cell.level-1 {
  background: rgba(108, 99, 255, 0.18);
}

.contrib-cell.level-2 {
  background: rgba(108, 99, 255, 0.35);
}

.contrib-cell.level-3 {
  background: rgba(108, 99, 255, 0.55);
}

.contrib-cell.level-4 {
  background: rgba(108, 99, 255, 0.8);
}

/* Language Bar */
.github-languages {
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  box-shadow: var(--shadow-card);
}

.lang-bar {
  height: 12px;
  border-radius: 999px;
  overflow: hidden;
  display: flex;
  margin-bottom: var(--space-md);
  background: rgba(255, 255, 255, 0.04);
}

.lang-segment {
  height: 100%;
  transition: width 1s var(--ease-out);
}

.lang-legend {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
}

.lang-legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0.65rem 0.75rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.04);
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.lang-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

/* ============================================================
   CONTACT / FOOTER
   ============================================================ */
.contact-section {
  text-align: center;
}

.contact-section .section-subtitle {
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--space-2xl);
}

.contact-links {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-bottom: var(--space-3xl);
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-full);
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  backdrop-filter: blur(8px);
  transition: all var(--duration-normal) var(--ease-out);
}

.contact-link:hover {
  border-color: var(--border-glow);
  color: var(--text-primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

.contact-icon {
  width: 1.1rem;
  height: 1.1rem;
  flex-shrink: 0;
  color: var(--accent);
}

.footer {
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--border-card);
  text-align: center;
}

.footer p {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.footer .footer-accent {
  color: var(--text-accent);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1200px) {
  .section {
    padding: var(--space-3xl) 0;
  }

  .hero-content {
    max-width: 640px;
  }

  .timeline {
    max-width: 720px;
  }
}

@media (max-width: 1024px) {
  .container {
    width: min(92%, var(--container-max));
  }

  .nav-links {
    gap: var(--space-lg);
  }

  .hero {
    min-height: auto;
    padding-top: calc(var(--nav-height) + var(--space-xl));
    padding-bottom: var(--space-3xl);
  }

  .hero-content {
    max-width: 100%;
  }

  .hero-layout {
    gap: var(--space-3xl);
  }

  .about-grid {
    grid-template-columns: minmax(260px, 340px) minmax(0, 1fr);
    gap: var(--space-xl);
  }

  .about-stats {
    gap: var(--space-md);
  }

  .skills-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .modal {
    max-width: min(100%, 720px);
  }

  .github-panels {
    grid-template-columns: 1fr;
  }

  .github-stats-cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .section {
    padding: var(--space-2xl) 0;
  }

  .section-header {
    margin-bottom: var(--space-2xl);
  }

  .section-subtitle {
    font-size: 0.98rem;
  }

  .hamburger {
    display: flex;
  }

  .theme-toggle {
    margin-left: auto;
    margin-right: var(--space-md);
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border-card);
    flex-direction: column;
    padding: calc(var(--nav-height) + var(--space-xl)) var(--space-xl) var(--space-xl);
    transition: right var(--duration-normal) var(--ease-out);
  }

  .nav-menu.open {
    right: 0;
  }

  .nav-links {
    flex-direction: column;
    gap: var(--space-lg);
    align-items: flex-start;
    width: 100%;
  }

  .nav-links li,
  .nav-cta {
    width: 100%;
  }

  .nav-cta {
    display: inline-flex;
    justify-content: center;
  }

  .hero {
    padding-bottom: var(--space-2xl);
  }

  .hero-layout {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .hero-content {
    text-align: center;
  }

  .hero-ctas {
    justify-content: center;
  }

  .hero-console {
    width: min(100%, 420px);
    margin: 0 auto;
  }

  .hero-name {
    font-size: clamp(2.25rem, 10vw, 3.5rem);
  }

  .hero-desc {
    font-size: 1rem;
    max-width: 100%;
  }

  .about-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .skills-grid {
    grid-template-columns: 1fr;
  }

  .about-image-wrapper {
    display: flex;
    justify-content: center;
    width: min(100%, 320px);
    max-width: 320px;
    margin: 0 auto;
  }

  .about-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .filter-bar {
    justify-content: flex-start;
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 4px;
    scrollbar-width: thin;
  }

  .filter-btn {
    flex: 0 0 auto;
  }

  .projects-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-md);
  }

  .project-card-image {
    aspect-ratio: 4 / 3;
  }

  .project-card-body {
    padding: 0.85rem;
  }

  .project-card-tags {
    gap: 4px;
    margin-bottom: 0.45rem;
  }

  .project-card-tags .tag:nth-child(n + 3) {
    display: none;
  }

  .tag {
    font-size: 0.62rem;
    padding: 2px 8px;
  }

  .project-card-title {
    font-size: 0.96rem;
    margin-bottom: 4px;
  }

  .project-card-desc {
    font-size: 0.76rem;
    line-height: 1.45;
    margin-bottom: 0.7rem;
    display: -webkit-box;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
  }

  .project-card-link {
    font-size: 0.76rem;
  }

  .project-card-body,
  .github-contrib,
  .github-languages,
  .skill-category {
    padding: var(--space-lg);
  }

  .modal-backdrop {
    padding: var(--space-md);
    align-items: flex-end;
  }

  .modal {
    max-height: 90vh;
    border-radius: var(--radius-lg);
  }

  .modal-content {
    padding: var(--space-xl);
  }

  .modal-links {
    flex-direction: column;
  }

  .modal-links .btn-primary,
  .modal-links .btn-outline {
    width: 100%;
    justify-content: center;
  }

  /* Timeline single column */
  .timeline::before {
    left: 20px;
  }

  .timeline-item,
  .timeline-item:nth-child(even) {
    width: 100%;
    margin-left: 0;
    padding-left: calc(20px + var(--space-2xl));
    padding-right: 0;
    justify-content: flex-start;
  }

  .timeline-dot,
  .timeline-item:nth-child(even) .timeline-dot {
    left: 12px;
    right: auto;
  }

  .modal-results {
    grid-template-columns: 1fr;
  }

  .github-profile-card {
    grid-template-columns: 1fr;
  }

  .github-header {
    justify-content: flex-start;
  }

  .github-profile-cta {
    justify-self: flex-start;
  }

  .resume-card-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .resume-actions {
    justify-content: flex-start;
    width: 100%;
    flex-direction: row;
    flex-wrap: wrap;
  }

  .github-panel-head {
    flex-direction: column;
  }

  .contrib-graph {
    min-width: 640px;
  }

  .github-contrib {
    overflow-x: auto;
  }

  .lang-legend {
    grid-template-columns: 1fr;
  }

  .contact-links {
    flex-direction: column;
    align-items: stretch;
  }

  .contact-link {
    justify-content: center;
    width: 100%;
  }
}

@media (max-width: 640px) {
  html {
    font-size: 15px;
  }

  .container {
    width: min(94%, var(--container-max));
  }

  .nav {
    height: 68px;
  }

  .hero-ctas {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-ctas .btn-primary,
  .hero-ctas .btn-outline {
    width: 100%;
    justify-content: center;
  }

  .hero-console {
    transform: none;
  }

  .hero-console:hover {
    transform: translateY(-4px);
  }

  .about-text h3,
  .modal-title {
    font-size: 1.35rem;
  }

  .about-stats,
  .github-stats-cards {
    grid-template-columns: 1fr;
  }

  .modal-close {
    top: var(--space-md);
    right: var(--space-md);
    width: 36px;
    height: 36px;
  }

  .modal-hero {
    aspect-ratio: 4 / 3;
  }

  .github-header {
    flex-direction: column;
    text-align: center;
  }

  .github-profile-cta {
    width: 100%;
    justify-content: center;
  }

  .resume-actions {
    width: 100%;
    flex-direction: column;
  }

  .resume-actions .btn-primary,
  .resume-actions .btn-outline {
    width: 100%;
    justify-content: center;
  }

  .resume-preview {
    margin: var(--space-md);
  }

  .resume-viewer {
    height: 70vh;
    min-height: 420px;
  }

  .github-contrib,
  .github-languages {
    padding: var(--space-md);
  }

  .lang-legend {
    grid-template-columns: 1fr;
  }

  .footer p {
    line-height: 1.8;
  }
}

@media (max-width: 480px) {
  .section {
    padding: calc(var(--space-2xl) - var(--space-sm)) 0;
  }

  .theme-toggle {
    width: 40px;
    height: 40px;
    margin-right: var(--space-sm);
  }

  .nav-menu {
    width: min(100%, 260px);
    padding-left: var(--space-lg);
    padding-right: var(--space-lg);
  }

  .hero-name {
    font-size: clamp(2rem, 12vw, 2.8rem);
  }

  .resume-card-header {
    padding: var(--space-lg);
  }

  .resume-preview-bar {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.25rem;
  }

  .hero-typing-wrapper {
    min-height: 3em;
  }

  .hero-desc,
  .about-text p,
  .timeline-desc,
  .modal-section p {
    font-size: 0.92rem;
  }

  .project-card-body {
    padding: 0.75rem;
  }

  .project-card-tags .tag:nth-child(n + 2) {
    display: none;
  }

  .project-card-title {
    font-size: 0.9rem;
  }

  .project-card-desc {
    font-size: 0.72rem;
    line-clamp: 2;
    -webkit-line-clamp: 2;
  }

  .project-card-link {
    font-size: 0.72rem;
  }

  .skill-item {
    padding: 0.65rem 0.75rem;
  }

  .contrib-graph {
    min-width: 560px;
    gap: 2px;
  }

  .contact-link {
    padding: 11px 18px;
    font-size: 0.84rem;
  }
}

@media (max-width: 360px) {
  html {
    font-size: 14px;
  }

  .container {
    width: 95%;
  }

  .nav-logo {
    font-size: 1rem;
  }

  .theme-toggle,
  .hamburger {
    flex-shrink: 0;
  }

  .project-card-body,
  .modal-content,
  .timeline-card,
  .skill-category,
  .github-stat-card {
    padding: var(--space-md);
  }

  .about-stat {
    padding: var(--space-md);
  }
}

/* Flat visual treatment: use borders, spacing, and color instead of effects. */
*,
*::before,
*::after {
  background-image: none !important;
  box-shadow: none !important;
  text-shadow: none !important;
}

.about-stat::before {
  filter: none;
  opacity: 0;
}