/* 
 * public/css/style.css
 * Core Design System, Variables, Typography, and Global Styling
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Outfit:wght@200;300;400;500;600;700;800&family=JetBrains+Mono:wght@300;400;500;600&display=swap');

:root {
  --bg-black: #0a0a0a;
  --bg-darker: #0d0d0d;
  --bg-dark: #111111;
  --bg-zinc-900: #18181b;
  --bg-zinc-950: #09090b;

  --color-white: #ffffff;
  --color-zinc-100: #f4f4f5;
  --color-zinc-300: #d4d4d8;
  --color-zinc-400: #a1a1aa;
  --color-zinc-500: #71717a;
  --color-zinc-600: #52525b;

  --accent-cyan: #818cf8;
  --accent-blue: #6366f1;
  --accent-purple: #7c3aed;
  --accent-emerald: #10b981;

  --font-sans: 'Inter', 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  --border-glass: rgba(255, 255, 255, 0.08);
  --border-glass-hover: rgba(255, 255, 255, 0.14);
  --bg-glass: rgba(255, 255, 255, 0.03);
  --bg-glass-hover: rgba(255, 255, 255, 0.06);
}

/* ── Light Theme Overrides ──────────────────────────────────────── */
[data-theme="light"] {
  --border-glass: rgba(0, 0, 0, 0.08);
  --border-glass-hover: rgba(0, 0, 0, 0.14);
  --bg-glass: rgba(0, 0, 0, 0.02);
  --bg-glass-hover: rgba(0, 0, 0, 0.04);
}

html[data-theme="light"] {
  background-color: #fafafa;
  color: #0f172a;
}

[data-theme="light"] ::-webkit-scrollbar-track {
  background: #fafafa;
}
[data-theme="light"] ::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.12);
  border-color: #fafafa;
}
[data-theme="light"] ::-webkit-scrollbar-thumb:hover {
  background: rgba(99, 102, 241, 0.4);
}

[data-theme="light"] .bg-glow-1 {
  background: radial-gradient(circle, rgba(99, 102, 241, 0.05) 0%, transparent 70%);
}
[data-theme="light"] .bg-glow-2 {
  background: radial-gradient(circle, rgba(124, 58, 237, 0.04) 0%, transparent 70%);
}

/* ── Reset & Base Styles ────────────────────────────────────────── */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-black);
  color: var(--color-white);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Selection */
::selection {
  background: rgba(99, 102, 241, 0.25);
  color: #e0e7ff;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-black);
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 99px;
  border: 2px solid var(--bg-black);
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(99, 102, 241, 0.5);
}

/* ── Typography Utilities ───────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-white);
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s ease;
}

/* ── Global Layout & Containment ────────────────────────────────── */
.max-w-7xl {
  width: 100%;
  max-width: 80rem; /* 1280px */
  margin-left: auto;
  margin-right: auto;
}

.max-w-5xl {
  width: 100%;
  max-width: 64rem; /* 1024px */
  margin-left: auto;
  margin-right: auto;
}

.max-w-4xl {
  width: 100%;
  max-width: 56rem; /* 896px */
  margin-left: auto;
  margin-right: auto;
}

.max-w-3xl {
  width: 100%;
  max-width: 48rem; /* 768px */
  margin-left: auto;
  margin-right: auto;
}

/* ── Premium Aesthetic Elements ─────────────────────────────────── */
.glass {
  background: var(--bg-glass);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-glass);
  transition: border-color 0.4s cubic-bezier(0.16, 1, 0.3, 1), 
              background-color 0.4s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.glass:hover {
  border-color: var(--border-glass-hover);
  background-color: var(--bg-glass-hover);
}

.text-gradient {
  background: linear-gradient(135deg, #a5b4fc 0%, #818cf8 40%, #7c3aed 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}

/* Glow mesh background layers */
.glow-mesh {
  position: relative;
}

/* ── Ambient Background Glows ───────────────────────────────────── */
.fixed-bg-glows {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.bg-glow-1 {
  position: absolute;
  top: -20%;
  left: -10%;
  width: 50vw;
  height: 50vh;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.08) 0%, transparent 70%);
  filter: blur(140px);
  animation: glowFloat1 18s ease-in-out infinite alternate;
}

.bg-glow-2 {
  position: absolute;
  bottom: -20%;
  right: -10%;
  width: 50vw;
  height: 50vh;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.07) 0%, transparent 70%);
  filter: blur(140px);
  animation: glowFloat2 24s ease-in-out infinite alternate;
}

@keyframes glowFloat1 {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(8%, 12%) scale(1.15); }
}

@keyframes glowFloat2 {
  0% { transform: translate(0, 0) scale(1.1); }
  100% { transform: translate(-10%, -8%) scale(0.9); }
}

/* ── Screen Reader Accessibility ───────────────────────────────── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* ─── Premium Glowing Custom Cursor ────────────────────────────────────────── */

/* Hide the default cursor everywhere */
* {
  cursor: none !important;
}

body {
  cursor: none;
}
button {
  cursor: none;
}

/* Cursor Container */
#ytx-cur {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 99999;
  pointer-events: none;
  transform: translate3d(-200px, -200px, 0);
  opacity: 0;
  transition: opacity 0.2s;
  will-change: transform;
}

/* Cursor Arrow Path Color - Light and Dark Modes */
.cur-path {
  fill: #ffffff; /* Default dark theme */
}
[data-theme="light"] .cur-path {
  fill: #1e1b4b;
}
[data-theme="dark"] .cur-path {
  fill: #ffffff;
}

/* SVG Styling */
#ytx-cur svg {
  overflow: visible;
  /* Default dark theme glow filters */
  filter:
    drop-shadow(0px 0px 2px rgba(255,255,255,0.95))
    drop-shadow(0px 0px 8px rgba(220,228,255,0.75))
    drop-shadow(0px 0px 22px rgba(180,200,255,0.45))
    drop-shadow(2px 6px 6px rgba(0,0,0,0.35));
  transition: transform 0.18s cubic-bezier(0.23,1,0.32,1), filter 0.25s;
}

[data-theme="light"] #ytx-cur svg {
  filter:
    drop-shadow(0px 0px 3px rgba(67,97,238,0.5))
    drop-shadow(1px 2px 4px rgba(0,0,0,0.25));
}

/* 🖱️ Cursor Grow on Hover */
#ytx-cur.hovering svg {
  transform: scale(1.12);
  /* Default dark theme hover filters */
  filter:
    drop-shadow(0px 0px 4px rgba(255,255,255,1))
    drop-shadow(0px 0px 14px rgba(220,228,255,0.9))
    drop-shadow(0px 0px 32px rgba(180,200,255,0.6))
    drop-shadow(2px 6px 6px rgba(0,0,0,0.35));
}

[data-theme="light"] #ytx-cur.hovering svg {
  filter:
    drop-shadow(0px 0px 6px rgba(67,97,238,0.7))
    drop-shadow(1px 2px 6px rgba(0,0,0,0.3));
}

/* 🖱️ Cursor Shrink on Mouse Down */
#ytx-cur.clicking svg {
  transform: scale(0.84);
  /* Default dark theme clicking filters */
  filter:
    drop-shadow(0px 0px 6px rgba(255,255,255,1))
    drop-shadow(0px 0px 18px rgba(220,228,255,1))
    drop-shadow(0px 0px 40px rgba(180,200,255,0.7))
    drop-shadow(2px 6px 6px rgba(0,0,0,0.35));
}

[data-theme="light"] #ytx-cur.clicking svg {
  filter:
    drop-shadow(0px 0px 10px rgba(67,97,238,0.9))
    drop-shadow(1px 2px 4px rgba(0,0,0,0.3));
}

/* Trailing Dot (for hover/follow effect) */
#ytxCurDot {
  position: fixed;
  z-index: 99998;
  pointer-events: none;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  /* Default dark theme styles */
  background: rgba(255,255,255,0.55);
  box-shadow: 0 0 6px rgba(200,220,255,0.6), 0 0 14px rgba(180,210,255,0.3);
  mix-blend-mode: screen;
  opacity: 0;
  transform: translate3d(calc(0px - 50%), calc(0px - 50%), 0);
  will-change: transform, width, height;
  transition: transform 0.24s cubic-bezier(0.25, 1, 0.5, 1), opacity 0.2s,
              width 0.22s, height 0.22s, background 0.22s, border 0.22s, box-shadow 0.22s;
}

[data-theme="light"] #ytxCurDot {
  background: rgba(50,80,180,0.5);
  box-shadow: 0 0 6px rgba(67,97,238,0.5), 0 0 14px rgba(67,97,238,0.25);
  mix-blend-mode: normal;
}

/* Trailing Dot: Grows on hover */
body.hov #ytxCurDot {
  width: 44px;
  height: 44px;
  /* Default dark theme styles */
  background: rgba(200,220,255,0.06);
  border: 1px solid rgba(200,220,255,0.18);
  box-shadow: none;
}

[data-theme="light"] body.hov #ytxCurDot {
  background: rgba(67,97,238,0.06);
  border: 1px solid rgba(67,97,238,0.2);
}

/* Gradient spot (background orb that follows the cursor) */
#ytx-spot {
  position: fixed;
  z-index: 1;
  pointer-events: none;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(37,99,235,0.043) 0%, transparent 70%);
  transform: translate3d(-50%, -50%, 0);
  will-change: transform;
  top: 0;
  left: 0;
  transition: transform 0.24s cubic-bezier(0.25, 1, 0.5, 1);
}

/* Accessibility: Don’t show custom cursor on touch devices */
@media(pointer:coarse){
  #ytx-cur, #ytxCurDot, #ytx-spot {
    display: none !important;
  }
  * {
    cursor: auto !important;
  }
  button {
    cursor: pointer !important;
  }
}