/* ============================================
   MAMOOR AHMAD — Portfolio Stylesheet
   Dark-first, accessible, responsive
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
  /* Dark theme (default) */
  --bg-primary: #0a192f;
  --bg-secondary: #112240;
  --bg-tertiary: #1d3461;
  --bg-card: #112240;
  --bg-card-hover: #1d3461;
  --text-primary: #e6f1ff;
  --text-secondary: #8892b0;
  --text-muted: #495670;
  --accent: #64ffda;
  --accent-dim: rgba(100, 255, 218, 0.1);
  --accent-glow: rgba(100, 255, 218, 0.3);
  --border: #233554;
  --border-hover: #64ffda;
  --shadow: rgba(0, 0, 0, 0.3);
  --shadow-hover: rgba(100, 255, 218, 0.15);
  --gradient-hero: linear-gradient(135deg, #0a192f 0%, #112240 100%);
  --nav-bg: rgba(10, 25, 47, 0.85);
  --loader-bg: #0a192f;
  --code-bg: #0d1f3c;
  --tag-bg: rgba(100, 255, 218, 0.08);
  --tag-text: #64ffda;
  --success: #64ffda;
  --warning: #ffd166;
  --info: #64b5f6;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --transition: 0.3s cubic-bezier(0.645, 0.045, 0.355, 1);
  --transition-fast: 0.15s ease;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  --container: 1200px;
  --container-sm: 800px;
  --nav-height: 72px;
}

[data-theme="light"] {
  --bg-primary: #f5f7fa;
  --bg-secondary: #ffffff;
  --bg-tertiary: #e8ecf1;
  --bg-card: #ffffff;
  --bg-card-hover: #f0f4f8;
  --text-primary: #1a1a2e;
  --text-secondary: #4a5568;
  --text-muted: #a0aec0;
  --accent: #0891b2;
  --accent-dim: rgba(8, 145, 178, 0.08);
  --accent-glow: rgba(8, 145, 178, 0.2);
  --border: #e2e8f0;
  --border-hover: #0891b2;
  --shadow: rgba(0, 0, 0, 0.08);
  --shadow-hover: rgba(8, 145, 178, 0.12);
  --gradient-hero: linear-gradient(135deg, #f5f7fa 0%, #e8ecf1 100%);
  --nav-bg: rgba(245, 247, 250, 0.9);
  --loader-bg: #f5f7fa;
  --code-bg: #f0f4f8;
  --tag-bg: rgba(8, 145, 178, 0.08);
  --tag-text: #0891b2;
  --success: #059669;
  --warning: #d97706;
  --info: #2563eb;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .hero__particles { display: none; }
  .loader { display: none; }
}

/* --- Skip Link --- */
.skip-link {
  position: fixed;
  top: -100%;
  left: 16px;
  z-index: 10000;
  padding: 12px 24px;
  background: var(--accent);
  color: var(--bg-primary);
  font-weight: 700;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-size: 0.875rem;
  transition: top var(--transition-fast);
}
.skip-link:focus {
  top: 16px;
}

/* --- Focus Styles --- */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

/* --- Selection --- */
::selection {
  background: var(--accent);
  color: var(--bg-primary);
}

/* --- Scrollbar --- */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* --- Loader --- */
.loader-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--loader-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}
.loader-overlay.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
.loader {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}
.loader__logo {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -1px;
}
.loader__bar {
  width: 200px;
  height: 3px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
}
.loader__bar::after {
  content: '';
  display: block;
  width: 40%;
  height: 100%;
  background: var(--accent);
  border-radius: 2px;
  animation: loaderSlide 1.2s ease-in-out infinite;
}
@keyframes loaderSlide {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(350%); }
}

/* --- Custom Cursor --- */
.cursor-dot {
  position: fixed;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transition: transform 0.15s ease, opacity 0.15s ease;
  mix-blend-mode: difference;
  opacity: 0;
}
.cursor-dot.visible { opacity: 1; }
.cursor-dot.hover {
  transform: scale(3);
  opacity: 0.5;
}
@media (hover: none) {
  .cursor-dot { display: none; }
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: transform var(--transition), box-shadow var(--transition);
}
.nav.scrolled {
  box-shadow: 0 4px 30px var(--shadow);
}
.nav__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav__logo {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav__logo span { color: var(--text-primary); }
.nav__links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}
.nav__link {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
  position: relative;
}
.nav__link:hover,
.nav__link.active {
  color: var(--accent);
  background: var(--accent-dim);
}
.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition), left var(--transition);
}
.nav__link:hover::after,
.nav__link.active::after {
  width: 60%;
  left: 20%;
}
.nav__actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Theme Toggle */
.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.125rem;
  transition: border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
}
.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

/* CTA Button */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition), transform var(--transition);
  border: none;
  line-height: 1.5;
}
.btn--primary {
  background: var(--accent);
  color: var(--bg-primary);
}
.btn--primary:hover {
  background: transparent;
  color: var(--accent);
  box-shadow: inset 0 0 0 2px var(--accent), 0 0 20px var(--shadow-hover);
}
.btn--outline {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}
.btn--outline:hover {
  background: var(--accent-dim);
  box-shadow: 0 0 20px var(--shadow-hover);
}
.btn--ghost {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--border);
}
.btn--ghost:hover {
  border-color: var(--accent);
  background: var(--accent-dim);
}
.btn--lg {
  padding: 14px 32px;
  font-size: 0.875rem;
}
.btn--sm {
  padding: 6px 14px;
  font-size: 0.75rem;
}

/* Hamburger */
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 1001;
}
.nav__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.nav__hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.nav__hamburger.active span:nth-child(2) { opacity: 0; }
.nav__hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
.nav__mobile {
  display: none;
  position: fixed;
  top: 0;
  right: -100%;
  width: min(75vw, 400px);
  height: 100vh;
  background: var(--bg-secondary);
  z-index: 999;
  padding: 100px 40px 40px;
  transition: right var(--transition);
  box-shadow: -10px 0 30px var(--shadow);
}
.nav__mobile.open { right: 0; }
.nav__mobile a {
  display: block;
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--text-primary);
  text-decoration: none;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  transition: color var(--transition-fast);
}
.nav__mobile a:hover { color: var(--accent); }
.nav__overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 998;
  opacity: 0;
  transition: opacity var(--transition);
}
.nav__overlay.open { opacity: 1; }

/* --- Hero --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: calc(var(--nav-height) + 40px) 24px 80px;
}
.hero__particles {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero__particles canvas {
  width: 100%;
  height: 100%;
}
.hero__content {
  max-width: var(--container);
  margin: 0 auto;
  width: 100%;
  position: relative;
  z-index: 1;
}
.hero__greeting {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--accent);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.hero__greeting::before {
  content: '';
  width: 30px;
  height: 1px;
  background: var(--accent);
}
.hero__name {
  font-family: var(--font-mono);
  font-size: clamp(2.5rem, 8vw, 5rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.1;
  margin-bottom: 8px;
  letter-spacing: -2px;
}
.hero__title {
  font-family: var(--font-mono);
  font-size: clamp(1.25rem, 4vw, 2.5rem);
  font-weight: 600;
  color: var(--text-secondary);
  line-height: 1.2;
  margin-bottom: 24px;
}
.hero__title .typed-text {
  color: var(--accent);
  border-right: 2px solid var(--accent);
  padding-right: 4px;
  animation: blink 1s step-end infinite;
}
@keyframes blink {
  0%, 100% { border-color: var(--accent); }
  50% { border-color: transparent; }
}
.hero__desc {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: 40px;
  line-height: 1.8;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 60px;
}
.hero__stats {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
}
.hero__stat {
  text-align: center;
}
.hero__stat-number {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 4px;
}
.hero__stat-label {
  font-size: 0.8125rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* Scroll indicator */
.hero__scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  animation: float 2s ease-in-out infinite;
}
.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--accent), transparent);
}
@keyframes float {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* --- Section Common --- */
.section {
  padding: 100px 24px;
  position: relative;
}
.section__inner {
  max-width: var(--container);
  margin: 0 auto;
}
.section__header {
  margin-bottom: 60px;
}
.section__label {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--accent);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.section__label::before {
  content: '';
  width: 30px;
  height: 1px;
  background: var(--accent);
}
.section__title {
  font-family: var(--font-mono);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
  letter-spacing: -1px;
}
.section__subtitle {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  margin-top: 12px;
  max-width: 600px;
}

/* --- About Section --- */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 60px;
  align-items: start;
}
.about__image {
  position: relative;
}
.about__image-frame {
  width: 100%;
  aspect-ratio: 3/4;
  background: var(--bg-secondary);
  border-radius: var(--radius);
  border: 2px solid var(--border);
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.about__image-frame::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  border: 2px solid var(--accent);
  transform: translate(12px, 12px);
  z-index: -1;
  transition: transform var(--transition);
}
.about__image-frame:hover::after {
  transform: translate(8px, 8px);
}
.about__image-placeholder {
  font-size: 4rem;
  color: var(--text-muted);
}
.about__text p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  font-size: 1.0625rem;
}
.about__text p strong {
  color: var(--text-primary);
}
.about__stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin: 32px 0;
}
.about__stat {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px 16px;
  text-align: center;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.about__stat:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--shadow);
}
.about__stat-num {
  font-family: var(--font-mono);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 4px;
}
.about__stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* Tech Stack */
.tech-stack {
  margin-top: 40px;
}
.tech-stack__title {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
}
.tech-stack__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
}
.tech-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition), background var(--transition);
}
.tech-item:hover {
  border-color: var(--accent);
  background: var(--accent-dim);
}
.tech-item__bar {
  width: 4px;
  height: 24px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
  flex-shrink: 0;
}
.tech-item__bar-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 2px;
  width: 0;
  transition: width 1s ease;
}
.tech-item__name {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-primary);
}
.tech-item__pct {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-muted);
  margin-left: auto;
}

/* --- Featured Projects --- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 24px;
}
.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  position: relative;
  display: flex;
  flex-direction: column;
}
.project-card:hover {
  border-color: var(--accent);
  transform: translateY(-8px);
  box-shadow: 0 20px 60px var(--shadow), 0 0 40px var(--shadow-hover);
}
.project-card__image {
  width: 100%;
  aspect-ratio: 16/9;
  background: var(--bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  position: relative;
  overflow: hidden;
}
.project-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.project-card__image::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 40px;
  background: linear-gradient(to bottom, transparent, var(--bg-card));
}
.project-card__body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.project-card__header {
  display: flex;
  align-items: start;
  justify-content: space-between;
  margin-bottom: 12px;
}
.project-card__title {
  font-family: var(--font-mono);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
}
.project-card__stars {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--warning);
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}
.project-card__desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
  flex: 1;
  line-height: 1.7;
}
.project-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}
.tag {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--tag-text);
  background: var(--tag-bg);
  padding: 4px 12px;
  border-radius: 100px;
  border: 1px solid transparent;
  transition: border-color var(--transition-fast);
}
.tag:hover {
  border-color: var(--accent);
}
.project-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.project-card__link {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--accent);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: gap var(--transition-fast);
}
.project-card__link:hover { gap: 10px; }
.project-card__link svg {
  width: 16px;
  height: 16px;
}
.project-card__category {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-muted);
  background: var(--bg-tertiary);
  padding: 4px 10px;
  border-radius: 100px;
}

/* View All Link */
.view-all {
  text-align: center;
  margin-top: 48px;
}
.view-all__link {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--accent);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  transition: background var(--transition), gap var(--transition);
}
.view-all__link:hover {
  background: var(--accent-dim);
  gap: 14px;
}

/* --- Services --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}
.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent);
  transform: scaleX(0);
  transition: transform var(--transition);
}
.service-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px var(--shadow);
}
.service-card:hover::before {
  transform: scaleX(1);
}
.service-card__icon {
  font-size: 2rem;
  margin-bottom: 20px;
}
.service-card__title {
  font-family: var(--font-mono);
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.service-card__price {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--accent);
  margin-bottom: 12px;
}
.service-card__desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.7;
}
.service-card__tech {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

/* --- Timeline --- */
.timeline {
  position: relative;
  padding-left: 40px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border);
}
.timeline__item {
  position: relative;
  margin-bottom: 40px;
}
.timeline__item::before {
  content: '';
  position: absolute;
  left: -36px;
  top: 6px;
  width: 14px;
  height: 14px;
  background: var(--bg-primary);
  border: 2px solid var(--accent);
  border-radius: 50%;
  z-index: 1;
}
.timeline__item:last-child { margin-bottom: 0; }
.timeline__date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  margin-bottom: 8px;
  letter-spacing: 1px;
}
.timeline__title {
  font-family: var(--font-mono);
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}
.timeline__org {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}
.timeline__desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* --- Testimonials --- */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}
.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  position: relative;
}
.testimonial-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}
.testimonial-card__quote {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 24px;
  font-style: italic;
  position: relative;
  padding-left: 20px;
  border-left: 2px solid var(--accent);
}
.testimonial-card__author {
  display: flex;
  align-items: center;
  gap: 12px;
}
.testimonial-card__avatar {
  width: 44px;
  height: 44px;
  background: var(--accent-dim);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}
.testimonial-card__name {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
}
.testimonial-card__role {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* --- Contact --- */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}
.contact__info {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.contact__info-text {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.8;
}
.contact__links {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.contact__link {
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--text-secondary);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}
.contact__link:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}
.contact__link-icon {
  font-size: 1.25rem;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-dim);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}
.contact__social {
  display: flex;
  gap: 12px;
  margin-top: 8px;
}
.contact__social a {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 1.125rem;
  transition: border-color var(--transition), color var(--transition), background var(--transition), transform var(--transition);
}
.contact__social a:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
  transform: translateY(-2px);
}

/* Contact Form */
.contact__form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.form-group label {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-secondary);
}
.form-group input,
.form-group textarea {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}
.form-group textarea {
  resize: vertical;
  min-height: 140px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* --- Footer --- */
.footer {
  padding: 40px 24px;
  border-top: 1px solid var(--border);
  text-align: center;
}
.footer__inner {
  max-width: var(--container);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer__copy {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}
.footer__links {
  display: flex;
  gap: 24px;
}
.footer__links a {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.footer__links a:hover { color: var(--accent); }

/* --- GitHub Contribution Graph Placeholder --- */
.contrib-graph {
  margin-top: 32px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  overflow: hidden;
}
.contrib-graph__title {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
}
.contrib-graph__grid {
  display: grid;
  grid-template-columns: repeat(52, 1fr);
  gap: 3px;
}
.contrib-graph__cell {
  aspect-ratio: 1;
  border-radius: 2px;
  background: var(--border);
  transition: background var(--transition-fast);
}
.contrib-graph__cell[data-level="1"] { background: rgba(100, 255, 218, 0.2); }
.contrib-graph__cell[data-level="2"] { background: rgba(100, 255, 218, 0.4); }
.contrib-graph__cell[data-level="3"] { background: rgba(100, 255, 218, 0.6); }
.contrib-graph__cell[data-level="4"] { background: var(--accent); }

[data-theme="light"] .contrib-graph__cell[data-level="1"] { background: rgba(8, 145, 178, 0.2); }
[data-theme="light"] .contrib-graph__cell[data-level="2"] { background: rgba(8, 145, 178, 0.4); }
[data-theme="light"] .contrib-graph__cell[data-level="3"] { background: rgba(8, 145, 178, 0.6); }
[data-theme="light"] .contrib-graph__cell[data-level="4"] { background: var(--accent); }

/* --- Projects Page Specific --- */
.projects-page {
  padding-top: calc(var(--nav-height) + 40px);
}
.projects-hero {
  text-align: center;
  padding: 60px 24px 40px;
}
.projects-hero__title {
  font-family: var(--font-mono);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
  letter-spacing: -1px;
}
.projects-hero__count {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--accent);
}

/* Filter Bar */
.filter-bar {
  position: sticky;
  top: var(--nav-height);
  z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px;
}
.filter-bar__inner {
  max-width: var(--container);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.filter-pills {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  flex: 1;
}
.filter-pill {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 6px 16px;
  cursor: pointer;
  transition: border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
  white-space: nowrap;
}
.filter-pill:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.filter-pill.active {
  background: var(--accent);
  color: var(--bg-primary);
  border-color: var(--accent);
}
.filter-search {
  position: relative;
  min-width: 240px;
}
.filter-search__input {
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 10px 16px 10px 40px;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  outline: none;
  transition: border-color var(--transition-fast);
}
.filter-search__input:focus {
  border-color: var(--accent);
}
.filter-search__icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 0.875rem;
}
.filter-count {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
}

/* Projects Grid (page) */
.projects-page-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 40px 24px 80px;
}
.project-card--sm {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.project-card--sm__preview {
  width: 100%;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--bg-tertiary);
}
.project-card--sm__preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}
.project-card--sm:hover .project-card--sm__preview img {
  transform: scale(1.05);
}
.project-card--sm__body {
  padding: 0 20px 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.project-card--sm:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px var(--shadow);
}
.project-card--sm__header {
  display: flex;
  align-items: start;
  justify-content: space-between;
  margin-bottom: 12px;
  padding: 0;
  margin-top: 16px;
}
.project-card--sm__icon {
  font-size: 1.5rem;
}
.project-card--sm__status {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  padding: 3px 8px;
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.project-card--sm__status--live {
  background: rgba(100, 255, 218, 0.1);
  color: var(--accent);
}
.project-card--sm__status--github {
  background: rgba(136, 146, 176, 0.1);
  color: var(--text-secondary);
}
.project-card--sm__title {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.project-card--sm__desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
  flex: 1;
  line-height: 1.6;
}
.project-card--sm__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.project-card--sm__lang {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}
.project-card--sm__lang-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}
.project-card--sm__stars {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--warning);
}
.project-card--sm__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}
.project-card--sm__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.project-card--sm__link {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: gap var(--transition-fast);
}
.project-card--sm__link:hover { gap: 8px; }
.project-card--sm__category {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  color: var(--text-muted);
  background: var(--bg-tertiary);
  padding: 3px 8px;
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* No results */
.no-results {
  text-align: center;
  padding: 80px 24px;
  grid-column: 1 / -1;
}
.no-results__icon {
  font-size: 3rem;
  margin-bottom: 16px;
}
.no-results__text {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--text-secondary);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .about__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .about__image-frame {
    max-width: 300px;
    margin: 0 auto;
  }
  .contact__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .nav__links { display: none; }
  .nav__hamburger { display: flex; }
  .nav__mobile { display: block; }
  .nav__overlay { display: block; }

  .hero { padding-top: calc(var(--nav-height) + 20px); }
  .hero__stats { gap: 24px; }
  .hero__stat-number { font-size: 1.75rem; }

  .section { padding: 60px 16px; }

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

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

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

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

  .form-row {
    grid-template-columns: 1fr;
  }

  .filter-bar__inner {
    flex-direction: column;
    align-items: stretch;
  }
  .filter-search { min-width: unset; }

  .projects-page-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 480px) {
  .hero__actions {
    flex-direction: column;
  }
  .hero__actions .btn {
    width: 100%;
    justify-content: center;
  }
  .hero__stats {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .hero__stat {
    display: flex;
    align-items: center;
    gap: 12px;
  }
}

/* --- Reveal Animation Classes --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}
.reveal-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal-left.revealed {
  opacity: 1;
  transform: translateX(0);
}
.reveal-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal-right.revealed {
  opacity: 1;
  transform: translateX(0);
}