/* ═══════════════════════════════════════════════════════════
   CENK ÇAKIN PORTFOLIO — v2 MASTER STYLESHEET
   Art-Gallery / Brutalist Minimal / Awwwards-grade
   Encoding: UTF-8 (Turkish character safe)
   Fonts: Syne (headings) + Plus Jakarta Sans (body)
═══════════════════════════════════════════════════════════ */

/* ── Google Fonts via @import fallback (also in <head>) ── */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@300;400;500;600&display=swap');

/* ── Custom Properties ─────────────────────────────────── */
:root {
  /* Core palette — matte black only, no gradients */
  --bg:          #0A0A0A;
  --bg-elevated: #111111;
  --bg-card:     #141414;
  --border:      rgba(255,255,255,0.08);
  --border-mid:  rgba(255,255,255,0.14);
  --border-hi:   rgba(255,255,255,0.22);

  /* Text - Brighter for readability */
  --text-1:  #FFFFFF;
  --text-2:  #A0A0A0;
  --text-3:  #555555;
  --text-inv:#0A0A0A;

  /* No accent color — pure monochrome with occasional off-white */
  --white:   #FFFFFF;
  --silver:  #C8C8C8;
  --dim:     #1E1E1E;

  /* Typography - Sharp, editorial, modern */
  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-body:    'Inter', system-ui, -apple-system, sans-serif;

  /* Spacing */
  --nav-h:     68px;
  --container: 1260px;
  --gutter:    clamp(20px, 4vw, 60px);

  /* Radius */
  --r-xs:  4px;
  --r-sm:  8px;
  --r-md:  12px;

  /* Easing */
  --ease:        cubic-bezier(0.25, 0.1, 0.25, 1);
  --ease-out:    cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
}

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

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

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text-1);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea, select { font-family: inherit; }

/* ── Layout ─────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.section { padding: clamp(80px, 12vw, 160px) 0; }

/* ── Section labels ──────────────────────────────────────── */
.label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 40px;
}
.label::before {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--text-3);
  display: block;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3.5rem);
  font-weight: 700;
  color: var(--text-1);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.section-sub {
  font-size: 0.9rem;
  color: var(--text-2);
  max-width: 480px;
  line-height: 1.8;
  font-weight: 400;
}

/* ═══════════════════════════════════════════════════════════
   REVEAL ANIMATIONS
   Characters split on hero; elements fade on scroll
═══════════════════════════════════════════════════════════ */
/* Scroll-triggered fade-up */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.8s var(--ease-out) var(--delay, 0s),
    transform 0.8s var(--ease-out) var(--delay, 0s);
}
.fade-up.in { opacity: 1; transform: translateY(0); }

.fade-in {
  opacity: 0;
  transition: opacity 0.8s var(--ease-out) var(--delay, 0s);
}
.fade-in.in { opacity: 1; }

/* Hero char-split animation */
.char {
  display: inline-block;
  opacity: 0;
  transform: translateY(110%) rotate(4deg);
  transition:
    opacity 0.7s var(--ease-out),
    transform 0.7s var(--ease-out);
  transition-delay: var(--char-delay, 0s);
}
.char.in {
  opacity: 1;
  transform: translateY(0) rotate(0deg);
}

/* ═══════════════════════════════════════════════════════════
   BUTTONS — Sleek minimal, no glow
═══════════════════════════════════════════════════════════ */
/* Primary: transparent + 1px border → inverts on hover */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 26px;
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-1);
  background: transparent;
  border: 1px solid var(--border-mid);
  border-radius: 0;          /* sharp — gallery aesthetic */
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition:
    color 0.35s var(--ease-out),
    border-color 0.35s var(--ease-out),
    background 0.35s var(--ease-out);
}
.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--white);
  transform: translateY(101%);
  transition: transform 0.4s var(--ease-out);
  z-index: 0;
}
.btn:hover::before   { transform: translateY(0); }
.btn:hover           { color: var(--text-inv); border-color: var(--white); }
.btn span, .btn svg  { position: relative; z-index: 1; }
.btn:active { transform: scale(0.98); }

/* Arrow icon within buttons */
.btn .arrow {
  transition: transform 0.35s var(--ease-out);
  flex-shrink: 0;
}
.btn:hover .arrow { transform: translateX(4px); }

/* Solid filled variant (e.g., submit) */
.btn-solid {
  background: var(--white);
  border-color: var(--white);
  color: var(--text-inv);
}
.btn-solid::before { background: transparent; }
.btn-solid:hover { background: transparent; color: var(--white); }

/* Ghost small (nav) */
.btn-ghost {
  padding: 9px 18px;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--text-2);
  border-color: var(--border);
}
.btn-ghost:hover { color: var(--text-inv); border-color: var(--white); }

/* ═══════════════════════════════════════════════════════════
   NAVBAR
═══════════════════════════════════════════════════════════ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 1000;
  background: transparent;
  transition: background 0.5s var(--ease), border-color 0.5s;
  border-bottom: 1px solid transparent;
}
.navbar.scrolled {
  background: rgba(10,10,10,0.92);
  border-bottom-color: var(--border);
  backdrop-filter: blur(18px) saturate(1.2);
  -webkit-backdrop-filter: blur(18px) saturate(1.2);
}

.nav-inner {
  display: flex;
  align-items: center;
  height: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
  gap: 48px;
}

/* Logo */
.nav-logo { flex-shrink: 0; }
.logo-mark {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--text-1);
  line-height: 1;
}
.logo-mark em {
  font-style: normal;
  color: var(--text-3);
}

/* Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 40px;
  margin-left: auto;
}
.nav-link {
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  transition: color 0.25s;
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 0; bottom: -4px;
  width: 100%; height: 1px;
  background: var(--text-1);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease-out);
}
.nav-link:hover,
.nav-link.active { color: var(--text-1); }
.nav-link:hover::after,
.nav-link.active::after { transform: scaleX(1); }

.nav-cta { flex-shrink: 0; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 32px;
  height: 32px;
  margin-left: auto;
  padding: 4px;
}
.hamburger span {
  display: block;
  height: 1px;
  background: var(--text-1);
  transition: all 0.35s var(--ease-out);
  transform-origin: center;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 768px) {
  .hamburger { display: flex; }
  .nav-links {
    position: fixed;
    inset: var(--nav-h) 0 0 0;
    flex-direction: column;
    justify-content: center;
    gap: 52px;
    background: var(--bg);
    transform: translateX(100%);
    transition: transform 0.45s var(--ease-out);
    margin: 0;
  }
  .nav-links.open { transform: translateX(0); }
  .nav-link { font-size: 1.1rem; }
  .nav-cta { display: none; }
}

/* ═══════════════════════════════════════════════════════════
   HERO
═══════════════════════════════════════════════════════════ */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center; /* Center the hero vertically instead of pushing to bottom */
  padding: calc(var(--nav-h) + 40px) var(--gutter) clamp(40px, 6vw, 80px);
  overflow: hidden;
  background: var(--bg);
}

/* ── Aurora Background Layer (GPU-optimised) ─────────────── */
.hero-aurora-wrap {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  /* Isolate compositing to this subtree */
  isolation: isolate;
  contain: layout style paint;
}

/*
  Performance strategy:
  - ZERO CSS filters (no blur, no invert — these caused the lag)
  - Dark native gradients
  - animate transform:translateX (GPU compositor, zero repaint)
*/
.hero-aurora {
  position: absolute;
  top: -10px;
  left: -10px;
  /* 3× wide so translateX can sweep across */
  width: 300%;
  height: calc(100% + 20px);
  will-change: transform;
  opacity: 0.15; /* Even lighter opacity for subtle effect */
  background-image:
    repeating-linear-gradient(
      100deg,
      transparent 0%,
      transparent 10%,
      rgba(255, 255, 255, 0.03) 12%,
      transparent 16%
    ),
    repeating-linear-gradient(
      100deg,
      #0a0a0a 10%,
      #1a1a2e 15%,
      #16213e 20%,
      #0f3460 25%,
      #0a0a0a 30%
    );
  background-size: 100%, 66%;
  background-position: 0% 50%, 0% 50%;
  /* Removed filter: blur(4px) invert(1) completely */
  
  /* Radial mask: strong top-right, fades toward bottom-left */
  -webkit-mask-image: radial-gradient(ellipse at 100% 0%, black 10%, transparent 70%);
  mask-image:         radial-gradient(ellipse at 100% 0%, black 10%, transparent 70%);
  /* GPU-accelerated: move the wide strip left */
  animation: aurora-slide 60s linear infinite;
}

@keyframes aurora-slide {
  /* translateX moves element — fully GPU composited, zero paint */
  from { transform: translateX(0%); }
  to   { transform: translateX(-66.666%); }
}

/* Respect OS motion preference */
@media (prefers-reduced-motion: reduce) {
  .hero-aurora { animation-play-state: paused; }
}

/* Subtle grid lines on top of aurora (art-direction) */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 80px 80px;
  opacity: 0.25;
  pointer-events: none;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 120%, black 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 120%, black 40%, transparent 100%);
}

/* Thin horizontal rule at bottom */
.hero::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: 0;
  z-index: 3;
  height: 1px;
  background: var(--border);
}

.hero-inner {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: var(--container);
  margin: 0 auto 0;
}

/* Available badge — tiny & organic */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: clamp(24px, 4vw, 48px);
}
.badge-pulse {
  width: 6px; height: 6px;
  background: #3DFF8A;
  border-radius: 50%;
  flex-shrink: 0;
  box-shadow: 0 0 0 0 rgba(61,255,138,0.4);
  animation: pulse-badge 2.4s ease-in-out infinite;
}
@keyframes pulse-badge {
  0%, 100% { box-shadow: 0 0 0 0 rgba(61,255,138,0.4); }
  60%       { box-shadow: 0 0 0 8px rgba(61,255,138,0); }
}

/* Hero name — massive display */
.hero-name-wrap {
  overflow: hidden;
  margin-bottom: 0;
}
.hero-name {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(3.2rem, 9vw, 8.5rem);
  font-weight: 700;
  color: var(--text-1);
  line-height: 1;
  letter-spacing: -0.05em;
  opacity: 0;
  transform: translateY(40px) scale(0.95);
  transition: opacity 1s var(--ease-out), transform 1s var(--ease-out);
}
.hero-name.in {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* Dash & title row */
.hero-title-row {
  display: flex;
  align-items: flex-end;
  gap: clamp(20px, 3vw, 48px);
  flex-wrap: wrap;
  margin-top: clamp(12px, 2vw, 24px);
  padding-top: clamp(16px, 2.5vw, 32px);
  border-top: 1px solid var(--border);
}

.hero-role-text {
  font-family: var(--font-body);
  font-size: clamp(0.8rem, 1.4vw, 1rem);
  font-weight: 400;
  color: var(--text-2);
  letter-spacing: 0.02em;
  line-height: 1.5;
  max-width: 320px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-left: auto;
  flex-wrap: wrap;
}

/* Year indicator — far right, vertical */
.hero-year {
  position: absolute;
  right: 0;
  bottom: clamp(60px, 8vw, 100px);
  writing-mode: vertical-rl;
  z-index: 4;
  font-family: var(--font-body);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-3);
  opacity: 0;
  transition: opacity 1.2s 1.5s;
}
.hero-year.in { opacity: 1; }

/* Scroll line */
.hero-scroll {
  position: absolute;
  left: var(--gutter);
  bottom: 0;
  z-index: 4;
  width: 1px;
  height: 80px;
  background: linear-gradient(to bottom, transparent, var(--border-mid));
  animation: scroll-line 2s ease-in-out infinite;
}
@keyframes scroll-line {
  0%, 100% { transform: scaleY(1); opacity: 1; }
  50%       { transform: scaleY(0.6); opacity: 0.4; }
}

/* ═══════════════════════════════════════════════════════════
   VELOCITY MARQUEE (React motion port)
═══════════════════════════════════════════════════════════ */
.velocity-marquee {
  overflow: hidden;
  padding: clamp(40px, 6vw, 80px) 0;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.marquee-track {
  display: flex;
  white-space: nowrap;
  gap: 32px;
  flex-wrap: nowrap;
  will-change: transform;
  /* Animation is controlled by JS requestAnimationFrame */
}
.marquee-item {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 8rem);
  font-weight: 700;
  letter-spacing: -0.07em; /* Tighter letter-spacing as requested */
  line-height: 0.9;
  color: transparent;
  -webkit-text-stroke: 1px var(--border-hi);
  text-transform: uppercase;
}
/* Alternate color so it looks dynamic */
.marquee-item:nth-child(even) {
  color: var(--text-1);
  -webkit-text-stroke: 0;
}

/* ═══════════════════════════════════════════════════════════
   PORTFOLIO SECTION
═══════════════════════════════════════════════════════════ */
.portfolio-section { background: var(--bg); }

.portfolio-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: clamp(36px, 5vw, 64px);
  flex-wrap: wrap;
}
.portfolio-header-left { flex: 1; min-width: 200px; }

/* Filter tabs */
.filter-tabs {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}
.filter-btn {
  padding: 8px 16px;
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  border: 1px solid transparent;
  background: transparent;
  cursor: pointer;
  transition: color 0.25s, border-color 0.25s;
  border-radius: 0;
}
.filter-btn:hover   { color: var(--text-1); border-color: var(--border); }
.filter-btn.active  {
  color: var(--text-1);
  border-color: var(--border-mid);
  background: var(--bg-elevated);
}

/* ── Waterfall Gallery Grid ─────────────────────────────── */
/*
  3 independent columns laid out with CSS Grid.
  Each column is a flex-column that stacks items vertically.
  Items use aspect-ratio so portrait (9/16) and landscape (16/9)
  images always render at the correct proportion — no layout shift.
  IntersectionObserver in main.js adds .in class for fade-in.
*/
.masonry-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  align-items: start;   /* columns don't stretch to each other's height */
}
@media (max-width: 900px)  { .masonry-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px)  { .masonry-grid { grid-template-columns: 1fr; } }

/* Each column is a flex stack */
.gallery-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* Individual card */
.grid-item {
  position: relative;
  cursor: pointer;
  background: var(--bg-card);
  overflow: hidden;
  border-radius: 6px;
  /* Aspect-ratio is set inline per item (portrait 9/16, landscape 16/9) */
  /* Scroll reveal */
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.7s var(--ease-out) var(--delay, 0s),
    transform 0.7s var(--ease-out) var(--delay, 0s);
}
.grid-item.in  { opacity: 1; transform: translateY(0); }
.grid-item.hidden { display: none; }

/* Image fills the aspect-ratio box */
.grid-item img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  /* Fade-in while loading (IntersectionObserver sets .loaded) */
  opacity: 0;
  transition:
    opacity 0.9s var(--ease-out),
    transform 0.7s var(--ease-out),
    filter 0.7s var(--ease-out);
}
.grid-item.img-loaded img { opacity: 1; }
.grid-item:hover img {
  transform: scale(1.04);
  filter: brightness(0.52);
}

/* Overlay */
.item-overlay {
  position: absolute;
  inset: 0;
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  /* Subtle gradient so text is always readable */
  background: linear-gradient(to top, rgba(0,0,0,0.72) 0%, transparent 55%);
  opacity: 0;
  transition: opacity 0.35s var(--ease-out);
}
.grid-item:hover .item-overlay { opacity: 1; }

.item-cat {
  font-family: var(--font-body);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
  margin-bottom: 5px;
}
.item-title {
  font-family: var(--font-display);
  font-size: clamp(0.85rem, 1.8vw, 1.15rem);
  font-weight: 600;
  color: var(--white);
  line-height: 1.15;
  letter-spacing: -0.01em;
}
.item-desc {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.48);
  margin-top: 3px;
  font-weight: 400;
  line-height: 1.5;
}

/* Expand icon */
.item-expand {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 32px; height: 32px;
  border: 1px solid rgba(255,255,255,0.28);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--white);
  opacity: 0;
  transform: scale(0.65);
  transition: opacity 0.35s, transform 0.35s var(--ease-out);
}
.grid-item:hover .item-expand { opacity: 1; transform: scale(1); }

/* ── Lightbox ────────────────────────────────────────────── */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(5,5,5,0.97);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s var(--ease-out);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.lightbox.open { opacity: 1; pointer-events: auto; }

.lightbox-content {
  max-width: 92vw;
  max-height: 92vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}
.lightbox-content img {
  max-width: 88vw;
  max-height: 80vh;
  object-fit: contain;
}
.lightbox-meta { text-align: center; }
.lightbox-cat {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-3);
  display: block;
  margin-bottom: 6px;
}
.lightbox-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-1);
  letter-spacing: -0.02em;
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
  position: absolute;
  width: 44px; height: 44px;
  border: 1px solid var(--border);
  color: var(--text-2);
  background: var(--bg-elevated);
  display: flex; align-items: center; justify-content: center;
  transition: all 0.25s;
  cursor: pointer;
}
.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
  background: var(--white);
  border-color: var(--white);
  color: var(--text-inv);
}
.lightbox-close { top: 24px; right: 24px; }
.lightbox-prev  { left: 24px; top: 50%; transform: translateY(-50%); }
.lightbox-next  { right: 24px; top: 50%; transform: translateY(-50%); }

/* ═══════════════════════════════════════════════════════════
   ABOUT SECTION
═══════════════════════════════════════════════════════════ */
.about-section {
  background: var(--bg);
  border-top: 1px solid var(--border);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 6vw, 100px);
  align-items: start;
}
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; }
}

.about-left .label { margin-bottom: 32px; }

.about-text {
  font-size: 0.9rem;
  color: var(--text-2);
  line-height: 1.82;
  margin-bottom: 18px;
  font-weight: 400;
}

/* Skills */
.skills-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-top: 40px;
  margin-bottom: 16px;
}
.skills-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
  margin-bottom: 40px;
}
.skill-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 16px;
  background: var(--bg);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-2);
  transition: color 0.2s, background 0.2s;
}
.skill-item:hover { background: var(--bg-elevated); color: var(--text-1); }
.skill-icon { color: var(--text-3); flex-shrink: 0; display: flex; }

/* Timeline */
.timeline-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 32px;
}

.timeline-item {
  position: relative;
  padding-left: 24px;
  padding-bottom: 36px;
}
.timeline-item::before {
  content: '';
  position: absolute;
  left: 0; top: 6px;
  bottom: 0;
  width: 1px;
  background: var(--border);
}
.timeline-item:last-child::before { background: transparent; }
.timeline-item:last-child { padding-bottom: 0; }

.tl-dot {
  position: absolute;
  left: -3px; top: 5px;
  width: 7px; height: 7px;
  background: var(--text-1);
  border-radius: 50%;
}
.tl-date {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-3);
  display: block;
  margin-bottom: 8px;
}
.tl-title {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-1);
  margin-bottom: 4px;
  letter-spacing: -0.01em;
}
.tl-sub {
  font-size: 0.75rem;
  color: var(--text-3);
  margin-bottom: 6px;
}
.tl-desc {
  font-size: 0.8rem;
  color: var(--text-2);
  line-height: 1.78;
}

/* Tools */
.tools-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-top: 48px;
  margin-bottom: 16px;
}
.tools-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.tool-chip {
  padding: 7px 14px;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-2);
  border: 1px solid var(--border);
  background: transparent;
  transition: all 0.2s;
  letter-spacing: 0.03em;
}
.tool-chip:hover { color: var(--text-1); border-color: var(--border-mid); }

/* ═══════════════════════════════════════════════════════════
   CONTACT SECTION
═══════════════════════════════════════════════════════════ */
.contact-section {
  background: var(--bg);
  border-top: 1px solid var(--border);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: clamp(40px, 6vw, 100px);
  align-items: start;
}
@media (max-width: 900px) {
  .contact-grid { grid-template-columns: 1fr; }
}

.contact-left .label { margin-bottom: 32px; }
.contact-sub {
  font-size: 0.9rem;
  color: var(--text-2);
  line-height: 1.82;
  margin-bottom: 40px;
  font-weight: 400;
}

/* Email link */
.contact-email {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-size: clamp(1rem, 2vw, 1.3rem);
  font-weight: 700;
  color: var(--text-1);
  letter-spacing: -0.02em;
  border-bottom: 1px solid var(--border);
  padding-bottom: 16px;
  margin-bottom: 32px;
  transition: border-color 0.3s, color 0.3s;
  width: 100%;
}
.contact-email:hover { border-color: var(--text-1); }
.contact-email .arrow { transition: transform 0.35s var(--ease-out); }
.contact-email:hover .arrow { transform: translateX(6px) translateY(-2px); }

/* Social row */
.social-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.social-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  border: 1px solid var(--border);
  background: transparent;
  transition: all 0.25s var(--ease-out);
}
.social-btn:hover {
  color: var(--text-inv);
  background: var(--white);
  border-color: var(--white);
}
.social-btn svg { flex-shrink: 0; }

/* Form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
}
@media (max-width: 500px) { .form-row { grid-template-columns: 1fr; } }

.form-field {
  position: relative;
  border-bottom: 1px solid var(--border);
}
.form-field.full { grid-column: 1 / -1; }
.form-field:not(:last-child) { border-right: 1px solid var(--border); }
.form-row:last-of-type .form-field { border-right: none; }

.form-field label {
  display: block;
  padding: 14px 20px 0;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-3);
}
.form-field input,
.form-field textarea,
.form-field select {
  display: block;
  width: 100%;
  padding: 6px 20px 14px;
  font-size: 0.88rem;
  color: var(--text-1);
  background: transparent;
  border: none;
  outline: none;
  resize: none;
  -webkit-appearance: none;
  appearance: none;
  transition: background 0.2s;
}
.form-field:focus-within { background: var(--bg-elevated); }
.form-field input::placeholder,
.form-field textarea::placeholder { color: var(--text-3); }
.form-field select option { background: var(--bg-card); }

.form-submit {
  border-top: 1px solid var(--border);
}
.form-submit .btn {
  width: 100%;
  justify-content: center;
  padding: 18px 24px;
  border: none;
  border-radius: 0;
  font-size: 0.78rem;
}

.form-success {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 16px 20px;
  background: rgba(61,255,138,0.05);
  border-top: 1px solid rgba(61,255,138,0.2);
  font-size: 0.83rem;
  font-weight: 500;
  color: #3DFF8A;
}
.form-success.show { display: flex; }

/* ═══════════════════════════════════════════════════════════
   FOOTER
═══════════════════════════════════════════════════════════ */
.footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
  background: var(--bg);
}
.footer-inner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}
.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.footer-brand p {
  font-size: 0.75rem;
  color: var(--text-3);
  font-weight: 400;
}
.footer-links {
  display: flex;
  gap: 28px;
  margin-left: auto;
}
.footer-links a {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--text-1); }
.footer-copy {
  width: 100%;
  font-size: 0.72rem;
  color: var(--text-3);
  border-top: 1px solid var(--border);
  padding-top: 20px;
  margin-top: 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

@media (max-width: 600px) {
  .footer-links { margin: 0; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}

/* ═══════════════════════════════════════════════════════════
   BACK TO TOP
═══════════════════════════════════════════════════════════ */
.back-to-top {
  position: fixed;
  bottom: 24px; right: 24px;
  width: 44px; height: 44px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text-2);
  display: flex; align-items: center; justify-content: center;
  z-index: 500;
  opacity: 0;
  transform: translateY(16px);
  transition: all 0.35s var(--ease-out);
}
.back-to-top.visible {
  opacity: 1; transform: translateY(0);
}
.back-to-top:hover {
  background: var(--white);
  border-color: var(--white);
  color: var(--text-inv);
  transform: translateY(-3px);
}

/* ── Misc utils ──────────────────────────────────────────── */
::selection { background: rgba(255,255,255,0.12); color: var(--white); }
:focus-visible { outline: 1px solid var(--border-hi); outline-offset: 3px; }

@media (max-width: 600px) {
  .hero-actions { gap: 10px; }
  .hero-title-row { gap: 16px; }
  .contact-sub { margin-bottom: 32px; }
}
