/* ============================================
   KESHAV SINGH PORTFOLIO — style.css
   Dark Cinematic Theme | Premium Design
   ============================================ */

/* ---------- Google Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500;600;700;800;900&family=Cormorant+Garamond:ital,wght@0,300;0,400;0,600;1,300;1,400&family=JetBrains+Mono:wght@300;400&display=swap');

/* ---------- CSS Variables ---------- */
:root {
  --black:       #000000;
  --deep:        #0a0a0a;
  --surface:     #111111;
  --surface2:    #1a1a1a;
  --border:      rgba(192,192,192,0.12);
  --silver:      #C0C0C0;
  --silver-dim:  rgba(192,192,192,0.5);
  --silver-glow: rgba(192,192,192,0.08);
  --white:       #FFFFFF;
  --white-dim:   rgba(255,255,255,0.7);
  --accent:      #e8e8e8;

  --font-display: 'Cormorant Garamond', serif;
  --font-body:    'Montserrat', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  --nav-h: 70px;
  --radius: 4px;
  --radius-lg: 12px;
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.65s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  background: var(--black);
  color: var(--white);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.7;
  overflow-x: hidden;
  cursor: none;
}

a { color: inherit; text-decoration: none; }
img { display: block; width: 100%; height: 100%; object-fit: cover; }
ul { list-style: none; }
button { cursor: none; border: none; background: none; font-family: inherit; }

/* ---------- Custom Cursor ---------- */
#cursor-dot {
  width: 8px; height: 8px;
  background: var(--white);
  border-radius: 50%;
  position: fixed; top: 0; left: 0;
  pointer-events: none; z-index: 9999;
  transform: translate(-50%,-50%);
  transition: transform 0.1s;
}
#cursor-ring {
  width: 36px; height: 36px;
  border: 1px solid var(--silver);
  border-radius: 50%;
  position: fixed; top: 0; left: 0;
  pointer-events: none; z-index: 9998;
  transform: translate(-50%,-50%);
  transition: transform 0.12s, width 0.3s, height 0.3s, border-color 0.3s;
}
body.cursor-hover #cursor-ring {
  width: 56px; height: 56px;
  border-color: var(--white);
}

/* ---------- Noise Overlay ---------- */
body::before {
  content: '';
  position: fixed; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none; z-index: 0; opacity: 0.35;
}

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--black); }
::-webkit-scrollbar-thumb { background: var(--surface2); border-radius: 2px; }

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 48px;
  border-bottom: 1px solid transparent;
  transition: background var(--transition), border-color var(--transition), backdrop-filter var(--transition);
}
.nav.scrolled {
  background: rgba(0,0,0,0.85);
  border-color: var(--border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--white);
}
.nav-logo span { color: var(--silver); }

.nav-links {
  display: flex; gap: 36px; align-items: center;
}
.nav-links a {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--silver-dim);
  position: relative;
  padding-bottom: 2px;
  transition: color var(--transition);
}
.nav-links a::after {
  content: '';
  position: absolute; bottom: -2px; left: 0;
  width: 0; height: 1px;
  background: var(--white);
  transition: width var(--transition);
}
.nav-links a:hover,
.nav-links a.active { color: var(--white); }
.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }

/* Hamburger */
.nav-hamburger {
  display: none; flex-direction: column; gap: 5px;
  width: 28px; padding: 4px 0;
}
.nav-hamburger span {
  display: block; height: 1px; background: var(--silver);
  transition: var(--transition);
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* Mobile Menu */
.nav-mobile {
  display: none; position: fixed;
  top: var(--nav-h); left: 0; right: 0;
  background: rgba(0,0,0,0.97);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(20px);
  padding: 32px 48px;
  flex-direction: column; gap: 24px;
  z-index: 999;
  transform: translateY(-20px); opacity: 0;
  transition: var(--transition);
}
.nav-mobile.open {
  display: flex; transform: translateY(0); opacity: 1;
}
.nav-mobile a {
  font-size: 0.85rem; font-weight: 600;
  letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--silver-dim);
  transition: color var(--transition);
}
.nav-mobile a:hover { color: var(--white); }

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 36px;
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  border: 1px solid var(--silver);
  color: var(--white);
  background: transparent;
  position: relative; overflow: hidden;
  transition: color var(--transition), border-color var(--transition);
  border-radius: var(--radius);
}
.btn::before {
  content: '';
  position: absolute; inset: 0;
  background: var(--white);
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--transition);
}
.btn:hover { color: var(--black); border-color: var(--white); }
.btn:hover::before { transform: scaleX(1); }
.btn span { position: relative; z-index: 1; }

.btn-solid {
  background: var(--white);
  color: var(--black);
  border-color: var(--white);
}
.btn-solid::before { background: var(--silver); }
.btn-solid:hover { color: var(--black); }

/* ============================================
   SECTION COMMONS
   ============================================ */
.section {
  padding: 120px 48px;
  position: relative;
}
.section-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.section-label {
  display: inline-flex; align-items: center; gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--silver-dim);
  margin-bottom: 20px;
}
.section-label::before {
  content: '';
  width: 32px; height: 1px;
  background: var(--silver-dim);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 300;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}
.section-title em {
  font-style: italic;
  color: var(--silver);
}

.section-subtitle {
  font-size: 0.88rem;
  color: var(--white-dim);
  max-width: 520px;
  line-height: 1.8;
  margin-bottom: 64px;
}

/* ---------- Divider ---------- */
.divider {
  width: 100%; height: 1px;
  background: var(--border);
  margin: 0;
}

/* ============================================
   ANIMATIONS
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.4,0,0.2,1),
              transform 0.8s cubic-bezier(0.4,0,0.2,1);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ============================================
   PAGE HERO (Non-home pages)
   ============================================ */
.page-hero {
  min-height: 38vh;
  display: flex; align-items: flex-end;
  padding: 0 48px 64px;
  padding-top: var(--nav-h);
  border-bottom: 1px solid var(--border);
  position: relative; overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 80% at 80% 50%, rgba(192,192,192,0.04) 0%, transparent 70%);
}
.page-hero-inner { max-width: 1200px; width: 100%; }
.page-hero-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--silver-dim);
  margin-bottom: 16px;
}
.page-hero-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 6.5rem);
  font-weight: 300;
  line-height: 1;
  letter-spacing: -0.02em;
}
.page-hero-title em { font-style: italic; color: var(--silver); }

/* ============================================
   FOOTER
   ============================================ */
.footer {
  padding: 64px 48px 40px;
  border-top: 1px solid var(--border);
}
.footer-inner {
  max-width: 1200px; margin: 0 auto;
  display: flex; justify-content: space-between; align-items: flex-end;
  flex-wrap: wrap; gap: 32px;
}
.footer-logo {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--white);
}
.footer-logo span { color: var(--silver); }
.footer-copy {
  font-size: 0.72rem;
  color: var(--silver-dim);
  letter-spacing: 0.1em;
  margin-top: 8px;
}
.footer-links {
  display: flex; gap: 24px; flex-wrap: wrap;
}
.footer-links a {
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--silver-dim);
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--white); }

/* ============================================
   HOME — HERO / SLIDER
   ============================================ */
.hero {
  position: relative;
  height: 100vh; min-height: 600px;
  overflow: hidden;
}

.slider {
  position: relative; width: 100%; height: 100%;
}
.slide {
  position: absolute; inset: 0;
  opacity: 0;
  transition: opacity 1.2s ease;
}
.slide.active { opacity: 1; }

.slide-media {
  position: absolute; inset: 0;
}
/* Placeholder gradient backgrounds */
.slide:nth-child(1) .slide-media { background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 40%, #111 100%); }
.slide:nth-child(2) .slide-media { background: linear-gradient(135deg, #080808 0%, #161616 50%, #0d0d0d 100%); }
.slide:nth-child(3) .slide-media { background: linear-gradient(135deg, #0c0c0c 0%, #181818 45%, #0a0a0a 100%); }

/* Decorative geometric shapes per slide */
.slide-media::before {
  content: '';
  position: absolute; inset: 0;
}
.slide:nth-child(1) .slide-media::before {
  background: radial-gradient(ellipse 70% 60% at 70% 40%, rgba(192,192,192,0.06) 0%, transparent 65%),
              radial-gradient(ellipse 40% 40% at 20% 80%, rgba(192,192,192,0.03) 0%, transparent 60%);
}
.slide:nth-child(2) .slide-media::before {
  background: radial-gradient(ellipse 80% 70% at 30% 30%, rgba(192,192,192,0.05) 0%, transparent 65%),
              radial-gradient(ellipse 50% 50% at 80% 70%, rgba(192,192,192,0.04) 0%, transparent 60%);
}
.slide:nth-child(3) .slide-media::before {
  background: radial-gradient(ellipse 60% 80% at 60% 20%, rgba(192,192,192,0.05) 0%, transparent 65%),
              radial-gradient(ellipse 70% 40% at 10% 60%, rgba(192,192,192,0.03) 0%, transparent 60%);
}

/* Geometric SVG-like decorations via pseudo */
.slide-deco {
  position: absolute; inset: 0; overflow: hidden;
  pointer-events: none;
}
.slide-deco::before {
  content: '';
  position: absolute;
  border: 1px solid rgba(192,192,192,0.06);
  border-radius: 50%;
}
.slide:nth-child(1) .slide-deco::before {
  width: 800px; height: 800px;
  right: -200px; bottom: -200px;
}
.slide:nth-child(2) .slide-deco::before {
  width: 600px; height: 600px;
  left: -100px; top: -100px;
}
.slide:nth-child(3) .slide-deco::before {
  width: 700px; height: 700px;
  right: -150px; top: -150px;
}

/* Slide overlay */
.slide-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to right, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.4) 60%, rgba(0,0,0,0.1) 100%);
}

/* Slide content */
.slide-content {
  position: absolute; inset: 0;
  display: flex; flex-direction: column;
  justify-content: center; padding: 0 10%;
  padding-top: var(--nav-h);
}
.slide-tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--silver-dim);
  margin-bottom: 24px;
  display: flex; align-items: center; gap: 12px;
}
.slide-tag::before {
  content: '';
  width: 28px; height: 1px;
  background: var(--silver-dim);
}
.slide-heading {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7vw, 6rem);
  font-weight: 300;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.slide-heading em { font-style: italic; color: var(--silver); }
.slide-sub {
  font-size: 0.9rem;
  font-weight: 300;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--silver);
  margin-bottom: 48px;
}
.slide-cta { display: flex; gap: 16px; flex-wrap: wrap; }

/* Slider controls */
.slider-controls {
  position: absolute; bottom: 48px; right: 48px;
  display: flex; gap: 12px; z-index: 10;
}
.slider-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--silver-dim);
  transition: background var(--transition), transform var(--transition);
}
.slider-dot.active {
  background: var(--white);
  transform: scale(1.4);
}
.slider-arrows {
  position: absolute; bottom: 40px; left: 48px;
  display: flex; gap: 12px; z-index: 10;
}
.slider-arrow {
  width: 48px; height: 48px;
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--silver);
  font-size: 1.1rem;
  transition: var(--transition);
  border-radius: 50%;
}
.slider-arrow:hover {
  border-color: var(--white);
  color: var(--white);
  background: rgba(255,255,255,0.05);
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute; bottom: 48px;
  left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  z-index: 10;
}
.scroll-indicator span {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--silver-dim);
}
.scroll-line {
  width: 1px; height: 48px;
  background: linear-gradient(to bottom, var(--silver-dim), transparent);
  animation: scrollAnim 2s ease infinite;
}
@keyframes scrollAnim {
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  51%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ============================================
   HOME — BRIEF ABOUT
   ============================================ */
.brief-about {
  padding: 100px 48px;
  background: var(--deep);
}
.brief-about-inner {
  max-width: 1200px; margin: 0 auto;
  display: grid; grid-template-columns: 1fr 1fr; gap: 80px;
  align-items: center;
}
.brief-photo {
  aspect-ratio: 3/4;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  position: relative; overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}
.brief-photo-placeholder {
  display: flex; flex-direction: column;
  align-items: center; gap: 12px;
  color: var(--silver-dim);
}
.brief-photo-placeholder .icon {
  font-size: 3rem; opacity: 0.4;
}
.brief-photo-placeholder p {
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  opacity: 0.5;
}
.brief-photo::before {
  content: '';
  position: absolute;
  top: 16px; left: 16px;
  width: calc(100% - 32px); height: calc(100% - 32px);
  border: 1px solid rgba(192,192,192,0.06);
  border-radius: calc(var(--radius-lg) - 4px);
  pointer-events: none; z-index: 1;
}
.brief-text .section-label { margin-bottom: 28px; }
.brief-text .section-title { margin-bottom: 28px; }
.brief-text p {
  font-size: 0.9rem;
  color: var(--white-dim);
  line-height: 1.9;
  margin-bottom: 20px;
}
.brief-stats {
  display: flex; gap: 40px;
  margin-top: 48px; padding-top: 32px;
  border-top: 1px solid var(--border);
}
.stat-item {}
.stat-number {
  font-family: var(--font-display);
  font-size: 2.5rem; font-weight: 300;
  color: var(--white);
  line-height: 1;
  margin-bottom: 4px;
}
.stat-label {
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--silver-dim);
}

/* ============================================
   HOME — BEST WORK GRID
   ============================================ */
.best-work { padding: 120px 48px; }
.best-work-inner { max-width: 1200px; margin: 0 auto; }

.work-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}
.work-grid-item {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--surface);
}
.work-grid-item:nth-child(1) { grid-column: span 2; aspect-ratio: 16/9; }

.work-placeholder {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  flex-direction: column; gap: 8px;
  background: var(--surface);
}
/* Each item a slightly different bg */
.work-grid-item:nth-child(1) .work-placeholder { background: linear-gradient(135deg,#111,#1a1a1a); }
.work-grid-item:nth-child(2) .work-placeholder { background: linear-gradient(135deg,#0d0d0d,#151515); }
.work-grid-item:nth-child(3) .work-placeholder { background: linear-gradient(135deg,#0f0f0f,#181818); }
.work-grid-item:nth-child(4) .work-placeholder { background: linear-gradient(135deg,#0a0a0a,#131313); }
.work-grid-item:nth-child(5) .work-placeholder { background: linear-gradient(135deg,#0c0c0c,#161616); }
.work-grid-item:nth-child(6) .work-placeholder { background: linear-gradient(135deg,#0e0e0e,#171717); }

.work-ph-icon {
  font-size: 2rem; color: var(--silver-dim); opacity: 0.4;
}
.work-ph-label {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--silver-dim); opacity: 0.5;
}

.work-hover {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.85);
  display: flex; flex-direction: column;
  justify-content: flex-end; padding: 28px;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--transition), transform var(--transition);
}
.work-grid-item:hover .work-hover {
  opacity: 1; transform: translateY(0);
}
.work-hover-cat {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--silver);
  margin-bottom: 6px;
}
.work-hover-title {
  font-family: var(--font-display);
  font-size: 1.5rem; font-weight: 400;
  color: var(--white);
}
.work-hover-arrow {
  position: absolute; top: 24px; right: 24px;
  width: 40px; height: 40px;
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--silver); font-size: 0.9rem;
  transition: var(--transition);
}
.work-grid-item:hover .work-hover-arrow {
  border-color: var(--white);
  color: var(--white);
}

/* ============================================
   HOME — SKILLS
   ============================================ */
.skills-section {
  padding: 120px 48px;
  background: var(--deep);
}
.skills-inner { max-width: 1200px; margin: 0 auto; }

.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px 80px;
}
.skill-item {}
.skill-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 12px;
}
.skill-name {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--white);
}
.skill-pct {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--silver-dim);
}
.skill-bar {
  height: 1px;
  background: var(--border);
  position: relative;
  overflow: hidden;
}
.skill-fill {
  position: absolute; top: 0; left: 0;
  height: 100%;
  background: linear-gradient(to right, var(--silver), var(--white));
  width: 0;
  transition: width 1.2s cubic-bezier(0.4,0,0.2,1);
}
.skill-item:nth-child(1) .skill-fill { background: linear-gradient(to right, #aaa, #fff); }

.skills-icons {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 24px;
  margin-top: 72px;
  padding-top: 64px;
  border-top: 1px solid var(--border);
}
.skill-icon-item {
  display: flex; flex-direction: column;
  align-items: center; gap: 12px;
  text-align: center;
}
.skill-icon-circle {
  width: 64px; height: 64px;
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  color: var(--silver);
  transition: var(--transition);
  background: var(--surface);
}
.skill-icon-item:hover .skill-icon-circle {
  border-color: var(--silver);
  background: rgba(192,192,192,0.05);
  transform: translateY(-4px);
}
.skill-icon-name {
  font-size: 0.62rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--silver-dim);
}

/* ============================================
   HOME — ACHIEVEMENTS
   ============================================ */
.achievements-section { padding: 120px 48px; }
.achievements-inner { max-width: 1200px; margin: 0 auto; }

.timeline {
  position: relative;
  padding-left: 40px;
}
.timeline::before {
  content: '';
  position: absolute; left: 0; top: 8px; bottom: 8px;
  width: 1px;
  background: var(--border);
}
.timeline-item {
  position: relative;
  margin-bottom: 52px;
  padding-bottom: 52px;
  border-bottom: 1px solid var(--border);
}
.timeline-item:last-child {
  margin-bottom: 0; padding-bottom: 0; border-bottom: none;
}
.timeline-dot {
  position: absolute; left: -44px; top: 6px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--silver);
  border: 2px solid var(--black);
  box-shadow: 0 0 0 1px var(--silver);
}
.timeline-year {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--silver-dim);
  margin-bottom: 8px;
}
.timeline-title {
  font-family: var(--font-display);
  font-size: 1.6rem; font-weight: 400;
  color: var(--white);
  margin-bottom: 8px;
}
.timeline-desc {
  font-size: 0.85rem;
  color: var(--white-dim);
  line-height: 1.8;
  max-width: 520px;
}

/* ============================================
   ABOUT PAGE
   ============================================ */
.about-bio { padding: 100px 48px; }
.about-bio-inner {
  max-width: 1200px; margin: 0 auto;
  display: grid; grid-template-columns: 1fr 1.6fr; gap: 80px;
  align-items: start;
}
.about-photo {
  position: sticky; top: calc(var(--nav-h) + 32px);
}
.about-photo-frame {
  aspect-ratio: 3/4;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  display: flex; align-items: center; justify-content: center;
}
.about-photo-frame::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, transparent 60%, rgba(0,0,0,0.5));
}
.about-photo-caption {
  margin-top: 20px;
  text-align: center;
}
.about-photo-caption h3 {
  font-family: var(--font-display);
  font-size: 1.3rem; font-weight: 400;
  color: var(--white); margin-bottom: 4px;
}
.about-photo-caption p {
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--silver-dim);
}

.about-content h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 300;
  line-height: 1.3;
  margin-bottom: 32px;
}
.about-content h2 em { font-style: italic; color: var(--silver); }
.about-content p {
  font-size: 0.9rem;
  color: var(--white-dim);
  line-height: 1.9;
  margin-bottom: 20px;
}
.about-tags {
  display: flex; flex-wrap: wrap; gap: 10px;
  margin-top: 36px;
}
.tag {
  padding: 6px 16px;
  border: 1px solid var(--border);
  font-size: 0.68rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--silver-dim);
  border-radius: 100px;
  transition: var(--transition);
}
.tag:hover {
  border-color: var(--silver);
  color: var(--white);
}

/* Academic & Technical Qualification */
.qualifications-section {
  padding: 80px 48px;
  background: var(--deep);
}
.qualifications-inner { max-width: 1200px; margin: 0 auto; }
.qual-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 2px; margin-top: 56px;
}
.qual-card {
  background: var(--surface);
  padding: 48px;
  border: 1px solid var(--border);
  transition: var(--transition);
}
.qual-card:hover { background: var(--surface2); }
.qual-card-icon {
  font-size: 2rem; margin-bottom: 24px;
  color: var(--silver);
}
.qual-card h3 {
  font-family: var(--font-display);
  font-size: 1.5rem; font-weight: 400;
  margin-bottom: 24px;
}
.qual-list li {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--white-dim);
}
.qual-list li:last-child { border-bottom: none; }
.qual-list li::before {
  content: '▸';
  color: var(--silver);
  flex-shrink: 0; margin-top: 1px;
}

/* Software tools */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 0;
}
.tool-card {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 24px 20px;
  text-align: center;
  border-radius: var(--radius);
  transition: var(--transition);
}
.tool-card:hover {
  background: var(--surface2);
  border-color: var(--silver-dim);
  transform: translateY(-4px);
}
.tool-icon { font-size: 1.8rem; margin-bottom: 12px; }
.tool-name {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--silver-dim);
}

/* Freelance Experience */
.experience-section { padding: 100px 48px; }
.experience-inner { max-width: 1200px; margin: 0 auto; }
.project-cards {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 20px; margin-top: 56px;
}
.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}
.project-card:hover { transform: translateY(-6px); border-color: var(--silver-dim); }
.project-card-media {
  aspect-ratio: 16/10;
  background: var(--surface2);
  display: flex; align-items: center; justify-content: center;
  font-size: 2rem; color: var(--silver-dim); opacity: 0.4;
  border-bottom: 1px solid var(--border);
}
.project-card:nth-child(1) .project-card-media { background: linear-gradient(135deg,#111,#1a1a1a); }
.project-card:nth-child(2) .project-card-media { background: linear-gradient(135deg,#0d0d0d,#141414); }
.project-card:nth-child(3) .project-card-media { background: linear-gradient(135deg,#0f0f0f,#161616); }
.project-card-body { padding: 28px; }
.project-cat {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--silver-dim);
  margin-bottom: 8px;
}
.project-card h3 {
  font-family: var(--font-display);
  font-size: 1.25rem; font-weight: 400;
  margin-bottom: 10px;
}
.project-card p {
  font-size: 0.82rem;
  color: var(--white-dim);
  line-height: 1.7;
}

/* ============================================
   PORTFOLIO PAGE
   ============================================ */
.portfolio-tabs-section { padding: 80px 48px; }
.portfolio-inner { max-width: 1200px; margin: 0 auto; }

.tabs-nav {
  display: flex; gap: 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 56px;
}
.tab-btn {
  padding: 14px 28px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--silver-dim);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color var(--transition), border-color var(--transition);
  cursor: none;
}
.tab-btn.active { color: var(--white); border-bottom-color: var(--white); }
.tab-btn:hover { color: var(--white); }

.tab-content { display: none; }
.tab-content.active { display: block; }

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.portfolio-item {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--surface);
}
.portfolio-item:nth-child(3n+1) { aspect-ratio: 4/3; }
.portfolio-placeholder {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  flex-direction: column; gap: 10px;
}
/* unique backgrounds */
.portfolio-item:nth-child(1)  .portfolio-placeholder { background: linear-gradient(135deg,#111 0%,#1c1c1c 100%); }
.portfolio-item:nth-child(2)  .portfolio-placeholder { background: linear-gradient(135deg,#0d0d0d 0%,#181818 100%); }
.portfolio-item:nth-child(3)  .portfolio-placeholder { background: linear-gradient(135deg,#0a0a0a 0%,#151515 100%); }
.portfolio-item:nth-child(4)  .portfolio-placeholder { background: linear-gradient(135deg,#0f0f0f 0%,#1a1a1a 100%); }
.portfolio-item:nth-child(5)  .portfolio-placeholder { background: linear-gradient(135deg,#0c0c0c 0%,#161616 100%); }
.portfolio-item:nth-child(6)  .portfolio-placeholder { background: linear-gradient(135deg,#090909 0%,#131313 100%); }

.p-icon { font-size: 2.5rem; color: var(--silver-dim); opacity: 0.35; }
.p-label {
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--silver-dim); opacity: 0.5;
}
.portfolio-overlay {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.82);
  display: flex; align-items: flex-end;
  padding: 24px;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity var(--transition), transform var(--transition);
}
.portfolio-item:hover .portfolio-overlay {
  opacity: 1; transform: translateY(0);
}
.portfolio-overlay-inner {}
.p-ov-cat {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--silver);
  margin-bottom: 4px;
}
.p-ov-title {
  font-family: var(--font-display);
  font-size: 1.3rem; font-weight: 400;
  color: var(--white);
}


/* ============================================
   CONTACT PAGE
   ============================================ */
.contact-section { padding: 80px 48px 120px; }
.contact-inner {
  max-width: 1200px; margin: 0 auto;
  display: grid; grid-template-columns: 1fr 1.4fr;
  gap: 80px;
}
.contact-info {}
.contact-info h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 300;
  line-height: 1.3; margin-bottom: 24px;
}
.contact-info h2 em { font-style: italic; color: var(--silver); }
.contact-info > p {
  font-size: 0.88rem;
  color: var(--white-dim);
  line-height: 1.85;
  margin-bottom: 48px;
}
.contact-details { display: flex; flex-direction: column; gap: 24px; }
.contact-detail-item {
  display: flex; gap: 16px; align-items: flex-start;
}
.detail-icon {
  width: 44px; height: 44px;
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; color: var(--silver);
  flex-shrink: 0; margin-top: 2px;
}
.detail-label {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--silver-dim);
  margin-bottom: 4px;
}
.detail-value {
  font-size: 0.9rem; color: var(--white);
}

.social-section-mini {
  margin-top: 48px; padding-top: 48px;
  border-top: 1px solid var(--border);
}
.social-section-mini p {
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--silver-dim);
  margin-bottom: 20px;
}
.social-links-mini {
  display: flex; gap: 12px;
}
.social-link-mini {
  width: 44px; height: 44px;
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; color: var(--silver-dim);
  transition: var(--transition);
}
.social-link-mini:hover {
  border-color: var(--white);
  color: var(--white);
  background: rgba(255,255,255,0.04);
  transform: translateY(-3px);
}

/* Contact Form */
.contact-form-wrap {}
.contact-form {
  display: flex; flex-direction: column; gap: 24px;
}
.form-group { position: relative; }
.form-group label {
  display: block;
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--silver-dim);
  margin-bottom: 10px;
}
.form-group input,
.form-group textarea {
  width: 100%;
  background: transparent;
  border: none; border-bottom: 1px solid var(--border);
  padding: 12px 0;
  font-family: var(--font-body);
  font-size: 0.92rem;
  color: var(--white);
  outline: none;
  transition: border-color var(--transition);
  resize: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--silver-dim); opacity: 0.5; }
.form-group input:focus,
.form-group textarea:focus { border-color: var(--silver); }
.form-group textarea { min-height: 120px; }
.form-line {
  position: absolute; bottom: 0; left: 0;
  height: 1px; width: 0;
  background: var(--white);
  transition: width 0.4s cubic-bezier(0.4,0,0.2,1);
}
.form-group input:focus ~ .form-line,
.form-group textarea:focus ~ .form-line { width: 100%; }

.form-submit { margin-top: 12px; }
.form-success {
  display: none;
  margin-top: 24px;
  padding: 20px 24px;
  border: 1px solid rgba(192,192,192,0.3);
  border-radius: var(--radius);
  font-size: 0.85rem;
  color: var(--silver);
  text-align: center;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .section { padding: 90px 32px; }
  .brief-about { padding: 90px 32px; }
  .brief-about-inner { grid-template-columns: 1fr; gap: 48px; }
  .brief-photo { max-height: 400px; }
  .about-bio-inner { grid-template-columns: 1fr; gap: 48px; }
  .about-photo { position: relative; top: 0; max-width: 360px; }
  .qual-grid { grid-template-columns: 1fr; }
  .project-cards { grid-template-columns: repeat(2, 1fr); }
  .skills-icons { grid-template-columns: repeat(3, 1fr); }
  .contact-inner { grid-template-columns: 1fr; gap: 64px; }
}

@media (max-width: 768px) {
  .nav { padding: 0 24px; }
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .nav-mobile a { display: block; }

  .section { padding: 72px 24px; }
  .brief-about { padding: 72px 24px; }
  .page-hero { padding: 0 24px 48px; }

  .work-grid { grid-template-columns: repeat(2, 1fr); }
  .work-grid-item:nth-child(1) { grid-column: span 2; }

  .skills-grid { grid-template-columns: 1fr; gap: 28px; }
  .skills-icons { grid-template-columns: repeat(3, 1fr); }

  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
  
  .tools-grid { grid-template-columns: repeat(2, 1fr); }
  .project-cards { grid-template-columns: 1fr; }

  .slider-arrows { left: 24px; bottom: 28px; }
  .slider-controls { right: 24px; bottom: 56px; }
  .slide-content { padding: 0 6%; }

  .brief-stats { flex-wrap: wrap; gap: 24px; }
  .footer { padding: 48px 24px 32px; }
  .footer-inner { flex-direction: column; align-items: flex-start; gap: 24px; }

  .skills-section { padding: 80px 24px; }
  .achievements-section { padding: 80px 24px; }
  .best-work { padding: 80px 24px; }
  .qualifications-section { padding: 72px 24px; }
  .experience-section { padding: 80px 24px; }
  .portfolio-tabs-section { padding: 60px 24px; }
  .contact-section { padding: 60px 24px 100px; }
}

@media (max-width: 480px) {
  .work-grid { grid-template-columns: 1fr; }
  .work-grid-item:nth-child(1) { grid-column: span 1; }
  .portfolio-grid { grid-template-columns: 1fr; }
  .skills-icons { grid-template-columns: repeat(2, 1fr); }
  .tabs-nav { flex-wrap: wrap; gap: 0; }
  .tab-btn { padding: 10px 16px; font-size: 0.65rem; }
}