/* ============================================
   Cinematic Developer Portfolio — Global Styles
   ============================================ */

:root {
  --bg-0: #05060a;
  --bg-1: #0a0c14;
  --bg-2: #11141f;
  --panel: rgba(255, 255, 255, 0.04);
  --panel-strong: rgba(255, 255, 255, 0.07);
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);

  --ink: #f4f5fb;
  --ink-soft: rgba(244, 245, 251, 0.72);
  --ink-mute: rgba(244, 245, 251, 0.48);
  --ink-faint: rgba(244, 245, 251, 0.28);

  --blue: #4d9fff;
  --blue-deep: #2e7bff;
  --purple: #a26bff;
  --purple-deep: #7c3aed;
  --cyan: #5ef3ff;
  --pink: #ff7ad1;
  --green: #7af0c2;

  --glow-blue: 0 0 60px rgba(77, 159, 255, 0.35);
  --glow-purple: 0 0 60px rgba(162, 107, 255, 0.35);
  --glow-cyan: 0 0 60px rgba(94, 243, 255, 0.30);

  --grad-aurora: linear-gradient(135deg, #4d9fff 0%, #a26bff 50%, #ff7ad1 100%);
  --grad-night: linear-gradient(180deg, #05060a 0%, #0a0c14 50%, #05060a 100%);
  --grad-cyan: linear-gradient(135deg, #5ef3ff 0%, #4d9fff 100%);

  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-serif: 'Instrument Serif', 'Times New Roman', serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', monospace;
  --font-body: 'Space Grotesk', system-ui, sans-serif;

  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 32px;
}

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

html, body {
  background: var(--bg-0);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body {
  min-height: 100vh;
  background:
    radial-gradient(ellipse 90% 60% at 50% -10%, rgba(162, 107, 255, 0.18), transparent 70%),
    radial-gradient(ellipse 70% 40% at 0% 30%, rgba(77, 159, 255, 0.12), transparent 70%),
    radial-gradient(ellipse 70% 40% at 100% 70%, rgba(94, 243, 255, 0.08), transparent 70%),
    var(--bg-0);
}

/* Subtle film grain */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 100;
  opacity: 0.5;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 0.07 0'/></filter><rect width='200' height='200' filter='url(%23n)'/></svg>");
}

/* Animated grid backdrop */
.bg-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, #000 30%, transparent 90%);
}

button, a, input, textarea, select {
  font-family: inherit;
  color: inherit;
}

a { text-decoration: none; color: inherit; }
button { background: none; border: none; cursor: pointer; }
img { display: block; max-width: 100%; }

::selection {
  background: rgba(162, 107, 255, 0.45);
  color: #fff;
}

/* ============== TYPOGRAPHY HELPERS ============== */

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

.eyebrow::before {
  content: '';
  display: inline-block;
  width: 28px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--blue));
}

.eyebrow-dot::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 12px var(--cyan);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.gradient-text {
  background: var(--grad-aurora);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.serif-italic {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.01em;
}

/* ============== GLASS CARD ============== */
.glass {
  background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02));
  border: 1px solid var(--border);
  backdrop-filter: blur(18px) saturate(1.2);
  -webkit-backdrop-filter: blur(18px) saturate(1.2);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}

.glass::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(255,255,255,0.18), transparent 40%, transparent 60%, rgba(255,255,255,0.06));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

/* ============== SECTION SHELL ============== */
section {
  position: relative;
  padding: 140px 0;
  z-index: 2;
}

.container {
  width: 100%;
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 40px;
  position: relative;
  z-index: 2;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(40px, 5.2vw, 76px);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.02;
  color: var(--ink);
}

.section-title .alt {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.01em;
}

.section-lead {
  font-size: 18px;
  line-height: 1.6;
  color: var(--ink-soft);
  max-width: 560px;
}

/* ============== MAGNETIC BUTTON ============== */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 26px;
  border-radius: 999px;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.02em;
  border: 1px solid var(--border-strong);
  background: rgba(255, 255, 255, 0.04);
  color: var(--ink);
  cursor: pointer;
  transition: transform 0.4s var(--ease-out-expo), background 0.3s, border-color 0.3s, box-shadow 0.4s;
  overflow: hidden;
  isolation: isolate;
  will-change: transform;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--grad-aurora);
  opacity: 0;
  transition: opacity 0.4s var(--ease-out-expo);
  z-index: -1;
}

.btn:hover::before { opacity: 1; }
.btn:hover {
  border-color: transparent;
  box-shadow: 0 20px 50px -20px rgba(162, 107, 255, 0.65);
}

.btn-primary {
  background: var(--grad-aurora);
  border-color: transparent;
  box-shadow: 0 10px 30px -10px rgba(77, 159, 255, 0.6);
}
.btn-primary::before { display: none; }
.btn-primary:hover {
  box-shadow: 0 24px 70px -20px rgba(162, 107, 255, 0.8);
  transform: translateY(-2px);
}

.btn .arrow {
  display: inline-block;
  transition: transform 0.4s var(--ease-out-expo);
}
.btn:hover .arrow { transform: translateX(4px); }

/* ============== CUSTOM CURSOR ============== */
@media (hover: hover) and (pointer: fine) {
  body { cursor: none; }
  a, button, .cursor-target { cursor: none; }
}

.cursor-dot, .cursor-ring {
  position: fixed;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: 9999;
  border-radius: 50%;
  mix-blend-mode: difference;
}
.cursor-dot {
  width: 6px; height: 6px;
  background: #fff;
  transform: translate(-50%, -50%);
  transition: width 0.25s, height 0.25s, background 0.25s;
}
.cursor-ring {
  width: 38px; height: 38px;
  border: 1px solid rgba(255,255,255,0.6);
  transform: translate(-50%, -50%);
  transition: width 0.3s var(--ease-out-expo), height 0.3s var(--ease-out-expo), border-color 0.3s, background 0.3s;
}
.cursor-ring.is-hover {
  width: 64px; height: 64px;
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.9);
}
.cursor-ring.is-click {
  width: 28px; height: 28px;
}

/* ============== LOADER ============== */
.loader {
  position: fixed;
  inset: 0;
  background: var(--bg-0);
  z-index: 10000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 40px;
  transition: opacity 0.8s var(--ease-out-expo), visibility 0.8s;
}
.loader.is-hidden { opacity: 0; visibility: hidden; }

.loader-mark {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 96px;
  background: var(--grad-aurora);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.04em;
  position: relative;
}
.loader-mark::after {
  content: '.';
  color: var(--cyan);
  -webkit-text-fill-color: var(--cyan);
  animation: dot-blink 1s steps(2) infinite;
}
@keyframes dot-blink { 50% { opacity: 0; } }

.loader-bar {
  width: 220px;
  height: 1px;
  background: rgba(255,255,255,0.1);
  overflow: hidden;
  position: relative;
}
.loader-bar-fill {
  position: absolute;
  inset: 0;
  background: var(--grad-aurora);
  transform-origin: left center;
  transform: scaleX(0);
  transition: transform 0.2s linear;
}
.loader-percent {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--ink-mute);
}

/* ============== SCROLL PROGRESS ============== */
.scroll-progress {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: transparent;
  z-index: 999;
}
.scroll-progress-fill {
  height: 100%;
  background: var(--grad-aurora);
  transform-origin: left center;
  transform: scaleX(0);
  box-shadow: 0 0 12px var(--blue);
}

/* ============== NAV ============== */
.nav {
  position: fixed;
  top: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 10px 8px 22px;
  background: rgba(10, 12, 20, 0.72);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border: 1px solid var(--border);
  border-radius: 999px;
  box-shadow: 0 20px 60px -20px rgba(0,0,0,0.6);
}
.nav-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding-right: 14px;
  margin-right: 6px;
  border-right: 1px solid var(--border);
  position: relative;
}
.nav-brand .brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--grad-aurora);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.05em;
  color: #fff;
  box-shadow: 0 8px 20px -8px rgba(162, 107, 255, 0.6);
}
.nav-brand .brand-name {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 19px;
  letter-spacing: -0.02em;
  background: var(--grad-aurora);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  position: relative;
  top: 1px;
}
.nav-brand .brand-name .dot {
  color: var(--cyan);
  -webkit-text-fill-color: var(--cyan);
}
.nav-links { display: flex; gap: 2px; }
.nav-link {
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-soft);
  transition: color 0.3s, background 0.3s;
  position: relative;
}
.nav-link:hover { color: var(--ink); background: rgba(255,255,255,0.06); }
.nav-link.active {
  color: var(--ink);
  background: rgba(255,255,255,0.08);
}

.nav-cta {
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  background: var(--grad-aurora);
  color: #fff;
  margin-left: 4px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 8px 24px -10px rgba(162, 107, 255, 0.6);
}

/* ============== UTILITIES ============== */
.flex { display: flex; }
.grid { display: grid; }
.relative { position: relative; }

/* Floating animation */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
.float-slow { animation: float 6s ease-in-out infinite; }
.float-med { animation: float 4s ease-in-out infinite; }

/* Reveal animations (driven by .is-in class added on scroll) */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s var(--ease-out-expo), transform 0.9s var(--ease-out-expo);
}
.reveal.is-in {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.08s; }
.reveal-delay-2 { transition-delay: 0.16s; }
.reveal-delay-3 { transition-delay: 0.24s; }
.reveal-delay-4 { transition-delay: 0.32s; }
.reveal-delay-5 { transition-delay: 0.4s; }

/* spin */
@keyframes spin-slow {
  to { transform: rotate(360deg); }
}
.spin-slow { animation: spin-slow 30s linear infinite; }

/* responsive */
@media (max-width: 900px) {
  section { padding: 100px 0; }
  .container { padding: 0 22px; }
  .nav { gap: 0; padding: 6px 6px 6px 16px; }
  .nav-links { display: none; }
  .nav-brand .brand-name { display: none; }
  .nav-brand { padding-right: 8px; margin-right: 4px; }
}

@media (max-width: 480px) {
  section { padding: 70px 0; }
  .container { padding: 0 16px; }
  .section-lead { font-size: 16px; }
}

/* loader responsive */
@media (max-width: 640px) {
  .loader-mark { font-size: clamp(36px, 10vw, 96px); }
}