/* ============================================
   Abdulbasit Portfolio — Professional 3D Theme
   ============================================ */

:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-card: rgba(255, 255, 255, 0.03);
  --bg-card-hover: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.08);
  --text-primary: #f0f0f5;
  --text-secondary: #9898a8;
  --text-muted: #6b6b7b;
  --accent: #6366f1;
  --accent-light: #818cf8;
  --accent-glow: rgba(99, 102, 241, 0.4);
  --accent-secondary: #06b6d4;
  --gradient: linear-gradient(135deg, #6366f1 0%, #06b6d4 50%, #8b5cf6 100%);
  --gradient-text: linear-gradient(135deg, #818cf8, #06b6d4, #a78bfa);
  --shadow-3d: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  --radius: 16px;
  --radius-sm: 10px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --nav-height: 72px;
}

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

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--accent);
  color: white;
}

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

ul { list-style: none; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Cursor Glow */
.cursor-glow {
  position: fixed;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  opacity: 0.15;
  transition: opacity 0.3s;
}

/* ========== NAVBAR ========== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  transition: var(--transition);
  background: transparent;
}

.navbar.scrolled {
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  line-height: 0;
}

.logo-img {
  height: 42px;
  width: auto;
  max-width: 160px;
  object-fit: contain;
  transition: var(--transition);
}

.nav-logo:hover .logo-img {
  transform: scale(1.05);
  filter: brightness(1.1);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links a {
  padding: 8px 16px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.nav-links a:hover {
  color: var(--text-primary);
  background: var(--bg-card-hover);
}

.nav-cv-btn {
  display: inline-flex !important;
  align-items: center;
  gap: 8px;
  padding: 8px 18px !important;
  background: var(--gradient) !important;
  color: #ffffff !important;
  border-radius: var(--radius-sm);
  font-weight: 600 !important;
  box-shadow: 0 4px 15px var(--accent-glow);
  transition: var(--transition);
  margin-left: 4px;
}

.nav-cv-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 22px var(--accent-glow);
  opacity: 0.95;
  background: var(--gradient) !important;
  color: #ffffff !important;
}

.nav-cv-btn .cv-icon {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: var(--transition);
  border-radius: 2px;
}

.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ========== HERO ========== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

#heroCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 120px 24px 80px;
}

.hero-greeting {
  font-size: 1.1rem;
  color: var(--accent-light);
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.hero-name {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
}

.hero-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 12px;
  min-height: 2.5rem;
}

.typed-cursor {
  color: var(--accent-light);
  animation: blink 1s step-end infinite;
}

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

.hero-location {
  color: var(--text-muted);
  font-size: 1rem;
  margin-bottom: 36px;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.btn {
  display: inline-flex;
  align-items: center;
  padding: 14px 32px;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--gradient);
  color: white;
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--accent-glow);
}

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

.btn-outline:hover {
  border-color: var(--accent-light);
  background: var(--bg-card);
  transform: translateY(-2px);
}

.hero-social {
  display: flex;
  gap: 16px;
  justify-content: center;
}

.hero-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  transition: var(--transition);
}

.hero-social a svg {
  width: 20px;
  height: 20px;
}

.hero-social a:hover {
  color: var(--accent-light);
  border-color: var(--accent);
  background: var(--bg-card);
  transform: translateY(-3px);
}

.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
}

.scroll-indicator span {
  display: block;
  width: 24px;
  height: 40px;
  border: 2px solid var(--text-muted);
  border-radius: 12px;
  position: relative;
}

.scroll-indicator span::after {
  content: '';
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background: var(--accent-light);
  border-radius: 2px;
  animation: scrollBounce 2s infinite;
}

@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); opacity: 1; }
  50% { transform: translateX(-50%) translateY(12px); opacity: 0.3; }
}

.animate-in {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.8s forwards;
}

.animate-in:nth-child(1) { animation-delay: 0.1s; }
.animate-in:nth-child(2) { animation-delay: 0.25s; }
.animate-in:nth-child(3) { animation-delay: 0.4s; }
.animate-in:nth-child(4) { animation-delay: 0.55s; }
.animate-in:nth-child(5) { animation-delay: 0.7s; }
.animate-in:nth-child(6) { animation-delay: 0.85s; }

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

/* ========== SECTIONS ========== */
.section {
  padding: 100px 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-tag {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-light);
  margin-bottom: 12px;
}

.section-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.section-subtitle {
  color: var(--text-secondary);
  margin-top: 12px;
  font-size: 1.05rem;
}

.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* ========== 3D CARDS ========== */
.card-3d {
  transform-style: preserve-3d;
  perspective: 1000px;
  transition: transform 0.15s ease;
}

/* ========== ABOUT ========== */
.about {
  background: var(--bg-secondary);
}

.about-grid {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 48px;
  align-items: center;
}

.about-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 32px;
  text-align: center;
  backdrop-filter: blur(10px);
}

.about-avatar {
  position: relative;
  width: 120px;
  height: 120px;
  margin: 0 auto 20px;
}

.avatar-ring {
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  background: var(--gradient);
  animation: rotateRing 4s linear infinite;
}

@keyframes rotateRing {
  to { transform: rotate(360deg); }
}

.avatar-initials {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: var(--bg-secondary);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent-light);
}

.about-card h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.5rem;
  margin-bottom: 4px;
}

.about-role {
  color: var(--accent-light);
  font-weight: 500;
  margin-bottom: 24px;
}

.about-contact p {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
  justify-content: center;
}

.about-contact svg {
  width: 16px;
  height: 16px;
  color: var(--accent);
  flex-shrink: 0;
}

.about-text p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 16px;
}

.about-text strong {
  color: var(--text-primary);
}

.about-stats {
  display: flex;
  gap: 40px;
  margin-top: 32px;
}

.stat-item {
  text-align: center;
}

.stat-number {
  display: block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.5rem;
  font-weight: 700;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.8125rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ========== SKILLS ========== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.skill-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: var(--transition);
}

.skill-card:hover {
  border-color: rgba(99, 102, 241, 0.3);
  box-shadow: 0 0 40px rgba(99, 102, 241, 0.08);
}

.skill-icon {
  font-family: 'Space Grotesk', monospace;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--accent-light);
  margin-bottom: 16px;
}

.skill-card h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.125rem;
  margin-bottom: 8px;
}

.skill-card p {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.skill-bar {
  height: 4px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 2px;
  overflow: hidden;
}

.skill-fill {
  height: 100%;
  width: 0;
  background: var(--gradient);
  border-radius: 2px;
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========== EXPERIENCE ========== */
.experience {
  background: var(--bg-secondary);
}

.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), var(--accent-secondary), transparent);
}

.timeline-item {
  position: relative;
  margin-bottom: 40px;
}

.timeline-dot {
  position: absolute;
  left: -40px;
  top: 24px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid var(--bg-secondary);
  box-shadow: 0 0 20px var(--accent-glow);
  z-index: 1;
}

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 32px;
  transition: var(--transition);
}

.timeline-card:hover {
  border-color: rgba(99, 102, 241, 0.25);
  transform: translateX(8px);
}

.timeline-date {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent-light);
  margin-bottom: 8px;
}

.timeline-badge {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 3px 10px;
  border-radius: 20px;
  margin-left: 8px;
  vertical-align: middle;
}

.timeline-badge.paid {
  background: rgba(6, 182, 212, 0.15);
  color: var(--accent-secondary);
  border: 1px solid rgba(6, 182, 212, 0.3);
}

.timeline-card h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.25rem;
  margin-bottom: 4px;
}

.timeline-card h4 {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 16px;
}

.timeline-card ul li {
  position: relative;
  padding-left: 20px;
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.timeline-card ul li::before {
  content: '▹';
  position: absolute;
  left: 0;
  color: var(--accent-light);
}

/* ========== PROJECTS ========== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

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

.project-card:hover {
  border-color: rgba(99, 102, 241, 0.3);
  box-shadow: var(--shadow-3d);
}

.project-card-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.project-visual {
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.project-visual-1 { background: linear-gradient(135deg, #1e1b4b, #312e81); }
.project-visual-2 { background: linear-gradient(135deg, #0c4a6e, #164e63); }
.project-visual-3 { background: linear-gradient(135deg, #4a044e, #701a75); }
.project-visual-4 { background: linear-gradient(135deg, #14532d, #166534); }

/* 3D Cube */
.project-3d-cube {
  width: 80px;
  height: 80px;
  position: relative;
  transform-style: preserve-3d;
  animation: cubeRotate 8s infinite linear;
}

@keyframes cubeRotate {
  0% { transform: rotateX(-20deg) rotateY(0deg); }
  100% { transform: rotateX(-20deg) rotateY(360deg); }
}

.cube-face {
  position: absolute;
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Space Grotesk', monospace;
  font-size: 0.875rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.9);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(4px);
}

.cube-face.front  { transform: translateZ(40px); }
.cube-face.back   { transform: rotateY(180deg) translateZ(40px); }
.cube-face.right  { transform: rotateY(90deg) translateZ(40px); }
.cube-face.left   { transform: rotateY(-90deg) translateZ(40px); }
.cube-face.top    { transform: rotateX(90deg) translateZ(40px); }
.cube-face.bottom { transform: rotateX(-90deg) translateZ(40px); }

.project-info {
  padding: 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.project-tag {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-light);
  margin-bottom: 10px;
}

.project-info h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.15rem;
  margin-bottom: 10px;
  line-height: 1.4;
}

.project-info p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
  flex: 1;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.project-tech span {
  font-size: 0.75rem;
  font-weight: 500;
  padding: 4px 12px;
  border-radius: 20px;
  background: rgba(99, 102, 241, 0.1);
  color: var(--accent-light);
  border: 1px solid rgba(99, 102, 241, 0.2);
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent-light);
  transition: var(--transition);
}

.project-link svg {
  width: 18px;
  height: 18px;
}

.project-link:hover {
  color: var(--accent-secondary);
  gap: 12px;
}

/* ========== EDUCATION ========== */
.education {
  background: var(--bg-secondary);
}

.edu-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.edu-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: var(--transition);
}

.edu-card:hover {
  border-color: rgba(99, 102, 241, 0.25);
  transform: translateY(-4px);
}

.edu-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.edu-card h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.05rem;
  margin-bottom: 8px;
  line-height: 1.4;
}

.edu-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.edu-date {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent-light);
}

.cert-list li {
  font-size: 0.875rem;
  color: var(--text-secondary);
  padding: 6px 0;
  padding-left: 16px;
  position: relative;
}

.cert-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent-light);
  font-weight: 700;
  font-size: 0.75rem;
}

/* ========== CONTACT ========== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  transition: var(--transition);
}

.contact-card:hover {
  border-color: var(--accent);
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(99, 102, 241, 0.12);
}

.contact-card svg {
  width: 32px;
  height: 32px;
  color: var(--accent-light);
  margin-bottom: 16px;
}

.contact-card h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1rem;
  margin-bottom: 8px;
}

.contact-card p {
  font-size: 0.8125rem;
  color: var(--text-muted);
  word-break: break-all;
}

/* ========== FOOTER ========== */
.footer {
  padding: 32px 0;
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer p {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
  .edu-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }

  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 16px 24px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    opacity: 0;
    transition: var(--transition);
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
  }

  .nav-cv-btn {
    margin-left: 0;
    margin-top: 8px;
    justify-content: center;
    width: 100%;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .about-stats {
    justify-content: center;
  }

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

  .timeline { padding-left: 32px; }
  .timeline-dot { left: -32px; }

  .section { padding: 72px 0; }
}

@media (max-width: 480px) {
  .hero-cta { flex-direction: column; align-items: center; }
  .btn { width: 100%; max-width: 280px; justify-content: center; }
  .about-stats { gap: 24px; }
  .stat-number { font-size: 2rem; }
}