/* ==========================================================================
   NOIVRN — DESIGN SYSTEM & CORE FOUNDATION
   Art-directed editorial venture studio design system
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&family=Space+Grotesk:wght@400;500;600;700&family=Space+Mono:ital,wght@0,400;0,700;1,400&family=Syne:wght@500;600;700;800&display=swap');

/* --- Root Design Tokens --- */
:root {
  /* Color Palette: Obsidian, Deep Beveled Navy, Brushed Champagne Gold */
  --bg-void: #060709;
  --bg-primary: #090B0F;
  --bg-surface: #0E1118;
  --bg-surface-elevated: #131722;
  --bg-surface-card: rgba(16, 21, 30, 0.7);
  --bg-glass: rgba(14, 17, 24, 0.75);

  /* Deep Beveled Navy Enamel Accents */
  --navy-deep: #08111D;
  --navy-enamel: #0E1D33;
  --navy-light: #182F52;
  --navy-glow: rgba(24, 47, 82, 0.4);

  /* Signature Brushed Champagne Gold */
  --gold-primary: #DFBA73;
  --gold-light: #F4DF9E;
  --gold-deep: #B38E46;
  --gold-bronze: #886727;
  --gold-subtle: rgba(223, 186, 115, 0.12);
  --gold-glow: rgba(223, 186, 115, 0.25);
  --gold-hairline: rgba(223, 186, 115, 0.22);

  /* Typography Colors */
  --text-primary: #F5F6F9;
  --text-secondary: #9DA3B4;
  --text-tertiary: #656D80;
  --text-inverse: #090B0F;

  /* Borders and Dividers */
  --border-subtle: rgba(255, 255, 255, 0.07);
  --border-medium: rgba(255, 255, 255, 0.14);
  --border-gold: rgba(223, 186, 115, 0.28);

  /* Typography Stacks */
  --font-display: 'Syne', sans-serif;
  --font-heading: 'Space Grotesk', -apple-system, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, sans-serif;
  --font-mono: 'Space Mono', monospace;

  /* Layout Spacing */
  --container-max: 1380px;
  --container-pad: clamp(1.25rem, 5vw, 3.5rem);
  --section-spacing: clamp(5rem, 10vw, 9.5rem);

  /* Transitions & Motion */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out-smooth: cubic-bezier(0.65, 0, 0.35, 1);
  --transition-fast: 0.2s var(--ease-out-expo);
  --transition-normal: 0.4s var(--ease-out-expo);
  --transition-slow: 0.8s var(--ease-out-expo);

  /* Z-Index Hierarchy */
  --z-canvas: 1;
  --z-content: 2;
  --z-header: 100;
  --z-modal: 200;
  --z-cursor: 999;
}

/* --- Architectural Light Theme Tokens --- */
[data-theme="light"] {
  /* Color Palette: Architectural Gallery Ivory, Soft Chalk, Warm Ochre Gold */
  --bg-void: #F6F5F2;
  --bg-primary: #FAF9F6;
  --bg-surface: #FFFFFF;
  --bg-surface-elevated: #F0EFEB;
  --bg-surface-card: rgba(255, 255, 255, 0.92);
  --bg-glass: rgba(246, 245, 242, 0.85);

  /* Clean Navy/Slate Accents */
  --navy-deep: #E2E7F0;
  --navy-enamel: #D5DEEC;
  --navy-light: #BDCCE1;
  --navy-glow: rgba(20, 34, 56, 0.08);

  /* Contrast-Optimized Warm Champagne Ochre Gold */
  --gold-primary: #9E7728;
  --gold-light: #B58E38;
  --gold-deep: #74520B;
  --gold-bronze: #543B06;
  --gold-subtle: rgba(158, 119, 40, 0.08);
  --gold-glow: rgba(158, 119, 40, 0.16);
  --gold-hairline: rgba(158, 119, 40, 0.22);

  /* High-Contrast Obsidian Typography */
  --text-primary: #10141D;
  --text-secondary: #4E5668;
  --text-tertiary: #767E90;
  --text-inverse: #FAF9F6;

  /* Crisp Architectural Borders */
  --border-subtle: rgba(0, 0, 0, 0.07);
  --border-medium: rgba(0, 0, 0, 0.12);
  --border-gold: rgba(158, 119, 40, 0.26);
}

/* Native View Transitions API Animation Support */
::view-transition-old(root),
::view-transition-new(root) {
  animation: none;
  mix-blend-mode: normal;
}

::view-transition-old(root) {
  z-index: 1;
}

::view-transition-new(root) {
  z-index: 99999;
}

/* Universal Transition Class for Smooth Color Gliding */
.theme-transitioning,
.theme-transitioning *,
.theme-transitioning *::before,
.theme-transitioning *::after {
  transition: background-color 0.4s cubic-bezier(0.16, 1, 0.3, 1),
              border-color 0.4s cubic-bezier(0.16, 1, 0.3, 1),
              color 0.4s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.4s cubic-bezier(0.16, 1, 0.3, 1) !important;
}

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

img, svg, video, canvas, iframe {
  max-width: 100%;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  background-color: var(--bg-void);
  color: var(--text-primary);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text-secondary);
  background-color: var(--bg-void);
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* Subtle Film Grain Texture Overlay */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 90;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* --- Selection --- */
::selection {
  background: var(--gold-primary);
  color: var(--bg-void);
}

/* --- Container Utility --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}

.container-wide {
  width: 100%;
  max-width: 1540px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}

/* --- Typography Utilities --- */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.025em;
}

.font-display {
  font-family: var(--font-display);
}

.font-heading {
  font-family: var(--font-heading);
}

.font-mono {
  font-family: var(--font-mono);
}

/* Editorial Eyebrow Tag */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--gold-primary);
  margin-bottom: 1.25rem;
}

.eyebrow::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  background-color: var(--gold-primary);
  transform: rotate(45deg);
}

/* Section Header Structure */
section {
  scroll-margin-top: 85px;
}

.section-header {
  margin-bottom: clamp(2.5rem, 5vw, 4.5rem);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  max-width: 22ch;
}

.section-subtitle {
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  line-height: 1.6;
  color: var(--text-secondary);
  max-width: 52ch;
  margin-top: 1.25rem;
}

/* Metallic Text Accent */
.text-gold-gradient {
  background: linear-gradient(135deg, #F8E7BE 0%, #DFBA73 50%, #A67C2E 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* --- Interactive Links & Focus States --- */
a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:focus-visible, button:focus-visible {
  outline: 2px solid var(--gold-primary);
  outline-offset: 4px;
}

/* --- Buttons & CTAs --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.95rem 1.85rem;
  border-radius: 2px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-normal);
  border: 1px solid transparent;
}

.btn-primary {
  background-color: var(--gold-primary);
  color: #080A0E;
  border-color: var(--gold-primary);
  box-shadow: 0 4px 20px var(--gold-glow);
}

.btn-primary:hover {
  background-color: var(--gold-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(223, 186, 115, 0.4);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-primary);
  border-color: var(--border-medium);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  border-color: var(--gold-primary);
  color: var(--gold-primary);
  background-color: var(--gold-subtle);
  transform: translateY(-2px);
}

.btn-icon-arrow {
  transition: transform var(--transition-fast);
  display: inline-block;
}

.btn:hover .btn-icon-arrow {
  transform: translateX(4px);
}

/* Status Pill Badge */
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  background: rgba(14, 29, 51, 0.6);
  border: 1px solid rgba(223, 186, 115, 0.3);
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gold-primary);
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: #38EF7D;
  box-shadow: 0 0 8px #38EF7D;
  animation: pulseDot 2.4s infinite ease-in-out;
}

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

/* Architectural Hairline Dividers */
.hairline {
  height: 1px;
  width: 100%;
  background: linear-gradient(90deg, transparent 0%, var(--border-medium) 20%, var(--border-medium) 80%, transparent 100%);
  margin: 0;
  border: none;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 7px;
}

::-webkit-scrollbar-track {
  background: var(--bg-void);
}

::-webkit-scrollbar-thumb {
  background: #1C2333;
  border-radius: 3px;
  border: 1px solid rgba(223, 186, 115, 0.15);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gold-deep);
}

/* Light Theme Scrollbar, Noise & Gradient Adjustments */
[data-theme="light"] body::before {
  opacity: 0.02;
  mix-blend-mode: multiply;
}

[data-theme="light"] ::-webkit-scrollbar-thumb {
  background: #D5D9E2;
  border: 1px solid rgba(158, 119, 40, 0.2);
}

[data-theme="light"] ::-webkit-scrollbar-thumb:hover {
  background: var(--gold-primary);
}

[data-theme="light"] .text-gold-gradient {
  background: linear-gradient(135deg, #74520B 0%, #9E7728 50%, #B58E38 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Accessibility: Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .custom-cursor, .custom-cursor-follower {
    display: none !important;
  }
}