/* =====================================================
   VELKEN STUDIO — Global Design System
   ===================================================== */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;900&family=Inter:wght@300;400;500;600&display=swap');

/* === CSS Custom Properties === */
:root {
  --bg-primary: #0a0a0f;
  --bg-surface: #12121a;
  --bg-surface-2: #1a1a26;
  --bg-card: #16162080;

  --accent-primary: #7c3aed;
  --accent-mid: #9333ea;
  --accent-light: #a855f7;
  --accent-glow: #c084fc;
  --accent-subtle: rgba(124, 58, 237, 0.15);
  --accent-border: rgba(168, 85, 247, 0.3);

  --text-primary: #f8f8ff;
  --text-secondary: #a0a0c0;
  --text-muted: #5c5c80;
  --text-accent: #c084fc;

  --gradient-primary: linear-gradient(135deg, #7c3aed, #a855f7);
  --gradient-glow: linear-gradient(135deg, rgba(124,58,237,0.4), rgba(168,85,247,0.2));
  --gradient-hero: radial-gradient(ellipse at 50% 0%, rgba(124,58,237,0.25) 0%, transparent 70%);
  --gradient-card: linear-gradient(135deg, rgba(124,58,237,0.1), rgba(168,85,247,0.05));

  --font-display: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 40px;

  --shadow-glow: 0 0 40px rgba(124,58,237,0.3);
  --shadow-card: 0 8px 32px rgba(0,0,0,0.4);
  --shadow-intense: 0 0 80px rgba(124,58,237,0.2), 0 0 160px rgba(168,85,247,0.1);

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-mid: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.7s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  cursor: none;
}

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

/* === Custom Cursor === */
#cursor {
  width: 12px;
  height: 12px;
  background: var(--accent-light);
  border-radius: 50%;
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: 10000;
  transform: translate(-50%, -50%);
  transition: width 0.3s, height 0.3s, background 0.3s;
  mix-blend-mode: screen;
}

#cursor-trail {
  width: 36px;
  height: 36px;
  border: 1.5px solid rgba(168,85,247,0.5);
  border-radius: 50%;
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: transform 0.12s ease-out, width 0.3s, height 0.3s;
}

body:hover #cursor { opacity: 1; }
.cursor-hover #cursor { width: 20px; height: 20px; background: var(--accent-glow); }
.cursor-hover #cursor-trail { width: 60px; height: 60px; border-color: rgba(192,132,252,0.4); }

/* === Noise Texture 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='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9998;
  opacity: 0.4;
}

/* === Navigation === */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0 48px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background var(--transition-mid), backdrop-filter var(--transition-mid);
}

nav.scrolled {
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.nav-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.4rem;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  text-decoration: none;
  position: relative;
}

.nav-logo span {
  color: var(--accent-light);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 40px;
  list-style: none;
}

.nav-links a {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--text-secondary);
  text-decoration: none;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 1px;
  background: var(--accent-light);
  transition: width var(--transition-mid);
}

.nav-links a:hover, .nav-links a.active {
  color: var(--text-primary);
}
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }

/* === Language Toggle === */
.lang-toggle {
  display: flex;
  align-items: center;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 100px;
  padding: 4px;
  gap: 2px;
}

.lang-btn {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  padding: 6px 14px;
  border-radius: 100px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: none;
  transition: all var(--transition-fast);
}

.lang-btn.active {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 2px 12px rgba(124,58,237,0.4);
}

/* === Hamburger Menu === */
.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: none;
  padding: 8px;
  background: none;
  border: none;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--text-primary);
  transition: all var(--transition-fast);
}

/* === Floating Orbs Background === */
.orbs-container {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: orbFloat 12s ease-in-out infinite;
}

.orb-1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(124,58,237,0.18), transparent 70%);
  top: -100px; left: -100px;
  animation-delay: 0s;
}

.orb-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(168,85,247,0.12), transparent 70%);
  top: 40%; right: -80px;
  animation-delay: -4s;
}

.orb-3 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(192,132,252,0.08), transparent 70%);
  bottom: -50px; left: 40%;
  animation-delay: -8s;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%       { transform: translate(30px, -20px) scale(1.05); }
  66%       { transform: translate(-20px, 30px) scale(0.95); }
}

/* === Page Container === */
.page-wrapper {
  position: relative;
  z-index: 1;
  min-height: 100vh;
}

/* === Section Base === */
section {
  padding: 120px 0;
  position: relative;
}

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 48px;
}

/* === Typography === */
.display-xl {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 9vw, 8rem);
  font-weight: 900;
  line-height: 0.95;
  letter-spacing: -0.04em;
}

.display-lg {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
}

.display-md {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.section-label {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent-light);
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}

.section-label::before {
  content: '';
  display: block;
  width: 32px;
  height: 1px;
  background: var(--accent-light);
}

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

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 14px 28px;
  border-radius: 100px;
  border: none;
  text-decoration: none;
  cursor: none;
  transition: all var(--transition-mid);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.1);
  opacity: 0;
  transition: opacity var(--transition-fast);
}
.btn:hover::before { opacity: 1; }

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 24px rgba(124,58,237,0.4);
}
.btn-primary:hover {
  box-shadow: 0 8px 40px rgba(124,58,237,0.6);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid rgba(255,255,255,0.15);
}
.btn-outline:hover {
  border-color: var(--accent-light);
  color: var(--accent-light);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--accent-light);
  padding: 12px 0;
}
.btn-ghost:hover { gap: 16px; }

.btn svg { transition: transform var(--transition-fast); }
.btn:hover svg { transform: translateX(4px); }

/* === Cards === */
.card {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-lg);
  padding: 40px;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-mid);
  backdrop-filter: blur(10px);
}

.card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-card);
  opacity: 0;
  transition: opacity var(--transition-mid);
}

.card:hover {
  border-color: var(--accent-border);
  transform: translateY(-8px);
  box-shadow: var(--shadow-glow);
}
.card:hover::before { opacity: 1; }

.card-icon {
  width: 56px;
  height: 56px;
  background: var(--accent-subtle);
  border: 1px solid var(--accent-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  transition: all var(--transition-mid);
}

.card:hover .card-icon {
  background: rgba(124,58,237,0.3);
  box-shadow: 0 0 24px rgba(124,58,237,0.4);
}

.card-icon svg { color: var(--accent-light); }

/* === Scroll 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-left {
  opacity: 0;
  transform: translateX(-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-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(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-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 0.8s cubic-bezier(0.4,0,0.2,1), transform 0.8s cubic-bezier(0.4,0,0.2,1);
}
.reveal-scale.visible { opacity: 1; transform: scale(1); }

/* Stagger delay */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }
.delay-6 { transition-delay: 0.6s; }

/* === Divider === */
.divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(168,85,247,0.3), transparent);
  margin: 0;
}

/* === Page Header (inner pages) === */
.page-hero {
  padding-top: 160px;
  padding-bottom: 80px;
  text-align: center;
  background: var(--gradient-hero);
  position: relative;
}

.page-hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(168,85,247,0.3), transparent);
}

/* === Footer === */
footer {
  padding: 60px 0 40px;
  border-top: 1px solid rgba(255,255,255,0.05);
  position: relative;
  z-index: 1;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text-primary);
  text-decoration: none;
}
.footer-logo span { color: var(--accent-light); }

.footer-links {
  display: flex;
  gap: 32px;
  list-style: none;
}

.footer-links a {
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.footer-links a:hover { color: var(--accent-light); }

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.social-links {
  display: flex;
  gap: 16px;
}

.social-link {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.social-link:hover {
  border-color: var(--accent-light);
  color: var(--accent-light);
  background: var(--accent-subtle);
  transform: translateY(-3px);
}

/* === Mobile Menu === */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(10,10,15,0.98);
  backdrop-filter: blur(30px);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 40px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-mid);
}

.mobile-menu.open {
  display: flex;
  opacity: 1;
  pointer-events: all;
}

.mobile-menu a {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.mobile-menu a:hover { color: var(--accent-light); }

/* === Scrollbar === */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--accent-primary); border-radius: 2px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent-light); }

/* === Responsive === */
@media (max-width: 1024px) {
  .container { padding: 0 32px; }
  nav { padding: 0 32px; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .container { padding: 0 24px; }
  nav { padding: 0 24px; }
  section { padding: 80px 0; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  nav { padding: 0 16px; }
}

/* === Loading Screen === */
#loader {
  position: fixed;
  inset: 0;
  background: var(--bg-primary);
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

#loader.hidden {
  opacity: 0;
  visibility: hidden;
}

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

.loader-logo {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 32px;
  animation: loaderPulse 1.5s ease-in-out infinite;
}
.loader-logo span { color: var(--accent-light); }

.loader-bar {
  width: 200px;
  height: 2px;
  background: rgba(255,255,255,0.1);
  border-radius: 1px;
  overflow: hidden;
  margin: 0 auto;
}

.loader-bar-fill {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: 1px;
  animation: loaderFill 1.2s cubic-bezier(0.4,0,0.2,1) forwards;
}

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

@keyframes loaderFill {
  from { width: 0; }
  to { width: 100%; }
}

/* === Particle Canvas === */
#hero-canvas {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}