/* ============================================
   AMBER SAJID — Portfolio Styles
   Award-winning dark theme with amber accents
   ============================================ */

:root {
  --bg: #0a0a0b;
  --bg-secondary: #111113;
  --bg-card: #161618;
  --text: #f0ece4;
  --text-muted: #8a8680;
  --amber: #d4a853;
  --amber-light: #e8c87a;
  --amber-dark: #a67c2e;
  --border: rgba(212, 168, 83, 0.12);
  --font-display: 'Syne', sans-serif;
  --font-body: 'Cormorant Garamond', serif;
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  cursor: none;
  line-height: 1.6;
}

body.loading {
  overflow: hidden;
}

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

ul { list-style: none; }

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ---- Loader ---- */
.loader {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.8s var(--ease-out-expo), visibility 0.8s;
}

.loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-inner {
  text-align: center;
}

.loader-text {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--amber);
  display: block;
  margin-bottom: 2rem;
  animation: pulse 1.5s ease-in-out infinite;
}

.loader-bar {
  width: 200px;
  height: 2px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
  margin: 0 auto;
}

.loader-progress {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--amber-dark), var(--amber-light));
  animation: loadBar 1.8s var(--ease-out-expo) forwards;
}

@keyframes loadBar {
  to { width: 100%; }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* ---- Three.js Canvas ---- */
#webgl-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* ---- Custom Cursor ---- */
.cursor, .cursor-follower {
  position: fixed;
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  mix-blend-mode: difference;
}

.cursor {
  width: 8px;
  height: 8px;
  background: var(--amber);
  transform: translate(-50%, -50%);
  transition: transform 0.1s;
}

.cursor-follower {
  width: 40px;
  height: 40px;
  border: 1px solid rgba(212, 168, 83, 0.5);
  transform: translate(-50%, -50%);
  transition: transform 0.3s var(--ease-out-expo), width 0.3s, height 0.3s, border-color 0.3s;
}

.cursor-follower.hover {
  width: 60px;
  height: 60px;
  border-color: var(--amber);
}

/* ---- Navigation ---- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 2.5rem;
  transition: background 0.4s, backdrop-filter 0.4s, padding 0.4s;
}

.nav.scrolled {
  background: rgba(10, 10, 11, 0.85);
  backdrop-filter: blur(20px);
  padding: 1rem 2.5rem;
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--amber);
  letter-spacing: 0.05em;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
}

.nav-link {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: color 0.3s;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--amber);
  transition: width 0.4s var(--ease-out-expo);
}

.nav-link:hover {
  color: var(--amber);
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 1001;
}

.nav-toggle span {
  display: block;
  width: 28px;
  height: 2px;
  background: var(--text);
  transition: transform 0.4s var(--ease-out-expo), opacity 0.3s;
}

.nav-toggle.active span:first-child {
  transform: rotate(45deg) translate(5px, 6px);
}

.nav-toggle.active span:last-child {
  transform: rotate(-45deg) translate(5px, -6px);
}

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(10, 10, 11, 0.97);
  backdrop-filter: blur(30px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.5s var(--ease-out-expo), visibility 0.5s;
}

.mobile-menu.open {
  opacity: 1;
  visibility: visible;
}

.mobile-menu ul {
  text-align: center;
}

.mobile-menu li {
  overflow: hidden;
}

.mobile-link {
  font-family: var(--font-display);
  font-size: clamp(2rem, 8vw, 3.5rem);
  font-weight: 700;
  display: block;
  padding: 0.5rem 0;
  transform: translateY(100%);
  transition: transform 0.6s var(--ease-out-expo), color 0.3s;
  transition-delay: calc(var(--i, 0) * 0.08s);
}

.mobile-menu.open .mobile-link {
  transform: translateY(0);
}

.mobile-link:hover {
  color: var(--amber);
}

/* ---- Hero ---- */
.hero {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 8rem 2.5rem 4rem;
}

.hero-content {
  max-width: 900px;
}

.hero-label {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 1.5rem;
}

.hero-title {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 0.95;
  margin-bottom: 2rem;
}

.hero-title .line {
  display: block;
  font-size: clamp(3.5rem, 12vw, 9rem);
  letter-spacing: -0.03em;
}

.hero-title .line:last-child {
  color: transparent;
  -webkit-text-stroke: 1.5px var(--amber);
}

.hero-sub {
  font-size: clamp(1.1rem, 2.5vw, 1.4rem);
  color: var(--text-muted);
  max-width: 550px;
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 1rem 2rem;
  border: none;
  cursor: pointer;
  transition: all 0.4s var(--ease-out-expo);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--amber);
  color: var(--bg);
}

.btn-primary:hover {
  background: var(--amber-light);
  transform: translateY(-2px);
  box-shadow: 0 10px 40px rgba(212, 168, 83, 0.25);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-outline:hover {
  border-color: var(--amber);
  color: var(--amber);
}

.btn-full {
  width: 100%;
}

.hero-scroll {
  position: absolute;
  bottom: 3rem;
  left: 2.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.scroll-line {
  width: 60px;
  height: 1px;
  background: var(--border);
  position: relative;
  overflow: hidden;
}

.scroll-line::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--amber);
  animation: scrollAnim 2s ease-in-out infinite;
}

@keyframes scrollAnim {
  0% { left: -100%; }
  50%, 100% { left: 100%; }
}

/* ---- Sections ---- */
.section {
  position: relative;
  z-index: 1;
  padding: 8rem 0;
}

.section-header {
  margin-bottom: 4rem;
}

.section-tag {
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--amber);
  display: block;
  margin-bottom: 1rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.section-title em {
  font-style: italic;
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--amber);
}

/* ---- Reveal Animations ---- */
.reveal-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s var(--ease-out-expo), transform 0.8s var(--ease-out-expo);
  transition-delay: var(--delay, 0s);
}

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

/* ---- About ---- */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 4rem;
  align-items: start;
}

.about-text .lead {
  font-size: clamp(1.2rem, 2.5vw, 1.6rem);
  color: var(--text);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.about-text p {
  color: var(--text-muted);
  font-size: 1.1rem;
}

.about-stats {
  display: grid;
  gap: 1.5rem;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 2rem;
  border-radius: 4px;
  transition: border-color 0.4s, transform 0.4s var(--ease-out-expo);
}

.stat-card:hover {
  border-color: rgba(212, 168, 83, 0.3);
  transform: translateX(8px);
}

.stat-number {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  color: var(--amber);
  display: block;
  line-height: 1;
}

.stat-number::after {
  content: '+';
  font-size: 1.5rem;
}

.stat-label {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 0.5rem;
  display: block;
}

/* ---- Timeline ---- */
.timeline {
  position: relative;
  padding-left: 2rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--amber), transparent);
}

.timeline-item {
  position: relative;
  padding-bottom: 3rem;
  padding-left: 2.5rem;
}

.timeline-marker {
  position: absolute;
  left: -2rem;
  top: 0.5rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--amber);
  transform: translateX(-50%);
  transition: background 0.3s, box-shadow 0.3s;
}

.timeline-item:hover .timeline-marker {
  background: var(--amber);
  box-shadow: 0 0 20px rgba(212, 168, 83, 0.4);
}

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 2rem;
  border-radius: 4px;
  transition: border-color 0.4s, transform 0.4s var(--ease-out-expo);
}

.timeline-item:hover .timeline-card {
  border-color: rgba(212, 168, 83, 0.25);
  transform: translateX(8px);
}

.timeline-date {
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--amber);
}

.timeline-card h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  margin: 0.5rem 0 0.25rem;
}

.timeline-company {
  color: var(--text-muted);
  font-size: 1rem;
  margin-bottom: 1rem;
  font-style: italic;
}

.timeline-card ul {
  display: grid;
  gap: 0.4rem;
}

.timeline-card li {
  color: var(--text-muted);
  font-size: 0.95rem;
  padding-left: 1.2rem;
  position: relative;
}

.timeline-card li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--amber-dark);
}

/* ---- Skills ---- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 4rem;
}

.skill-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 2rem;
  border-radius: 4px;
  transition: border-color 0.4s, transform 0.4s var(--ease-out-expo);
}

.skill-card:hover {
  border-color: rgba(212, 168, 83, 0.3);
  transform: translateY(-6px);
}

.skill-icon {
  width: 40px;
  height: 40px;
  color: var(--amber);
  margin-bottom: 1.2rem;
}

.skill-icon svg {
  width: 100%;
  height: 100%;
}

.skill-card h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: 0.02em;
}

.skill-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.5;
}

/* Marquee */
.marquee-wrap {
  overflow: hidden;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 1.5rem 0;
}

.marquee {
  display: flex;
  gap: 2rem;
  animation: marquee 25s linear infinite;
  white-space: nowrap;
}

.marquee span {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 3vw, 2rem);
  font-weight: 700;
  color: transparent;
  -webkit-text-stroke: 1px rgba(212, 168, 83, 0.3);
  flex-shrink: 0;
}

@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ---- Education ---- */
.edu-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 4rem;
}

.edu-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 2rem;
  border-radius: 4px;
  transition: border-color 0.4s, transform 0.4s var(--ease-out-expo);
}

.edu-card:hover {
  border-color: rgba(212, 168, 83, 0.3);
  transform: translateY(-4px);
}

.edu-year, .edu-badge {
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--amber);
  display: block;
  margin-bottom: 1rem;
}

.edu-card h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.edu-card p {
  color: var(--text-muted);
}

.languages h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  color: var(--text-muted);
}

.lang-items {
  display: grid;
  gap: 1.2rem;
  max-width: 500px;
}

.lang-item {
  display: grid;
  grid-template-columns: 80px 1fr 80px;
  align-items: center;
  gap: 1rem;
}

.lang-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
}

.lang-bar {
  height: 3px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
}

.lang-fill {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--amber-dark), var(--amber-light));
  border-radius: 2px;
  transition: width 1.2s var(--ease-out-expo);
}

.lang-fill.animated {
  width: var(--level);
}

.lang-level {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-align: right;
}

/* ---- Contact ---- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.contact-desc {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin: 1.5rem 0 2.5rem;
  max-width: 400px;
}

.contact-links {
  display: grid;
  gap: 1.2rem;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-family: var(--font-display);
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: color 0.3s, transform 0.3s var(--ease-out-expo);
}

.contact-link svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--amber);
}

.contact-link:hover {
  color: var(--amber);
  transform: translateX(6px);
}

/* Form */
.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 2.5rem;
  border-radius: 4px;
}

.form-group {
  position: relative;
  margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border);
  padding: 1rem 0;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text);
  outline: none;
  transition: border-color 0.3s;
  resize: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--amber);
}

.form-group label {
  position: absolute;
  left: 0;
  top: 1rem;
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: transform 0.3s var(--ease-out-expo), font-size 0.3s, color 0.3s;
  pointer-events: none;
}

.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:focus + label,
.form-group textarea:not(:placeholder-shown) + label {
  transform: translateY(-1.5rem);
  font-size: 0.65rem;
  color: var(--amber);
}

/* ---- WhatsApp Float ---- */
.whatsapp-float {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 1000;
  width: 56px;
  height: 56px;
  background: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  transition: transform 0.3s var(--ease-out-expo), box-shadow 0.3s;
}

.whatsapp-float svg {
  width: 28px;
  height: 28px;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 30px rgba(37, 211, 102, 0.55);
}

.contact-link svg[fill="currentColor"] {
  color: #25d366;
}

/* ---- Footer ---- */
.footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  padding: 2rem 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.footer-credit {
  color: var(--amber-dark);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .about-stats {
    grid-template-columns: repeat(3, 1fr);
  }

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

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

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}

@media (max-width: 768px) {
  body {
    cursor: auto;
  }

  .cursor, .cursor-follower {
    display: none;
  }

  .nav-links {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .nav {
    padding: 1.2rem 1.5rem;
  }

  .hero {
    padding: 7rem 1.5rem 3rem;
  }

  .hero-scroll {
    left: 1.5rem;
    bottom: 2rem;
  }

  .section {
    padding: 5rem 0;
  }

  .container {
    padding: 0 1.5rem;
  }

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

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

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

  .timeline {
    padding-left: 1.5rem;
  }

  .timeline-item {
    padding-left: 1.5rem;
  }

  .timeline-marker {
    left: -1.5rem;
  }

  .footer-inner {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }

  .lang-item {
    grid-template-columns: 60px 1fr 70px;
    gap: 0.75rem;
  }
}

@media (max-width: 480px) {
  .hero-cta {
    flex-direction: column;
  }

  .btn {
    text-align: center;
  }

  .stat-number {
    font-size: 2.2rem;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal-up {
    opacity: 1;
    transform: none;
  }

  html {
    scroll-behavior: auto;
  }
}