/* ============================================
   PAGEFORGE ENGINE — OCEAN BLUE DESIGN SYSTEM
   Professional Dark · Ocean Palette
   ============================================ */

:root {
  /* Ocean Blue Palette */
  --color-900: #001D39;
  --color-800: #0A4174;
  --color-700: #49769F;
  --color-600: #4E8EA2;
  --color-500: #6EA2B3;
  --color-400: #7BBDE8;
  --color-300: #BDD8E9;
  --color-200: #D4E8F3;
  --color-100: #EAF4FA;

  /* Semantic Colors (mapped from palette) */
  --bg-primary: #001D39;
  --bg-secondary: #021E3A;
  --surface: #0A2E52;
  --surface-hover: #0D3A66;
  --surface-glass: rgba(10, 46, 82, 0.6);
  --border: rgba(123, 189, 232, 0.1);
  --border-subtle: rgba(123, 189, 232, 0.05);
  --border-focus: rgba(123, 189, 232, 0.4);
  --text-primary: #EAF4FA;
  --text-secondary: #9DBFD6;
  --text-tertiary: #6EA2B3;
  --accent-primary: #7BBDE8;
  --accent-primary-hover: #9DD0F0;
  --accent-primary-subtle: rgba(123, 189, 232, 0.08);
  --accent-primary-ring: rgba(123, 189, 232, 0.25);
  --accent-secondary: #4E8EA2;
  --accent-gradient: linear-gradient(135deg, #7BBDE8 0%, #4E8EA2 50%, #49769F 100%);
  --accent-gradient-btn: linear-gradient(135deg, #7BBDE8, #4E8EA2);
  --success: #34D399;
  --success-subtle: rgba(52, 211, 153, 0.08);
  --warning: #FBBF24;
  --warning-subtle: rgba(251, 191, 36, 0.08);
  --danger: #F87171;
  --danger-subtle: rgba(248, 113, 113, 0.08);
  --overlay: rgba(0, 29, 57, 0.7);

  /* Typography */
  --font-primary: 'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;

  /* Font Sizes */
  --text-display-xl: 3.25rem;
  --text-display-lg: 2.75rem;
  --text-h1: 2.125rem;
  --text-h2: 1.625rem;
  --text-h3: 1.1875rem;
  --text-body: 0.9375rem;
  --text-body-sm: 0.8125rem;
  --text-caption: 0.75rem;

  /* Line Heights */
  --leading-tight: 1.15;
  --leading-snug: 1.3;
  --leading-normal: 1.5;
  --leading-relaxed: 1.7;

  /* Font Weights */
  --font-regular: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  --font-extrabold: 800;

  /* Spacing */
  --space-1: 0.25rem; --space-2: 0.5rem; --space-3: 0.75rem;
  --space-4: 1rem; --space-5: 1.25rem; --space-6: 1.5rem;
  --space-8: 2rem; --space-10: 2.5rem; --space-12: 3rem;
  --space-16: 4rem; --space-20: 5rem; --space-24: 6rem;

  /* Border Radius */
  --radius-xs: 6px; --radius-sm: 8px; --radius-md: 12px;
  --radius-lg: 16px; --radius-xl: 20px; --radius-2xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0, 29, 57, 0.3);
  --shadow-sm: 0 2px 4px rgba(0, 29, 57, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 29, 57, 0.35);
  --shadow-lg: 0 8px 32px rgba(0, 29, 57, 0.4);
  --shadow-xl: 0 16px 48px rgba(0, 29, 57, 0.5);
  --shadow-glow: 0 0 24px rgba(123, 189, 232, 0.12);
  --shadow-card: 0 2px 8px rgba(0,29,57,0.2), 0 0 1px rgba(123,189,232,0.05) inset;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Z-index */
  --z-dropdown: 100; --z-sticky: 200; --z-modal-backdrop: 300;
  --z-modal: 400; --z-toast: 500; --z-tooltip: 600;

  /* Layout */
  --sidebar-width: 260px;
  --navbar-height: 68px;
  --container-max: 1200px;
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--navbar-height) + var(--space-6));
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  font-size: var(--text-body);
  line-height: var(--leading-normal);
  color: var(--text-primary);
  background-color: var(--bg-primary);
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(123,189,232,0.04) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 100%, rgba(78,142,162,0.03) 0%, transparent 50%);
  min-height: 100vh;
  overflow-x: hidden;
}

a { color: var(--accent-primary); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--accent-primary-hover); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }

h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: var(--font-bold);
  line-height: var(--leading-snug);
  letter-spacing: -0.02em;
}
h1 { font-size: var(--text-h1); }
h2 { font-size: var(--text-h2); }
h3 { font-size: var(--text-h3); }
p { color: var(--text-secondary); line-height: var(--leading-relaxed); }

::selection { background: rgba(123, 189, 232, 0.3); color: #fff; }

::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(110, 162, 179, 0.25); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { background: rgba(110, 162, 179, 0.4); }

:focus-visible { outline: 2px solid var(--accent-primary); outline-offset: 2px; }

/* ---- Layout ---- */
.container { width: 100%; max-width: var(--container-max); margin: 0 auto; padding: 0 var(--space-6); }

.flex { display: flex; } .flex-col { flex-direction: column; } .flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; } .items-start { align-items: flex-start; }
.justify-center { justify-content: center; } .justify-between { justify-content: space-between; } .justify-end { justify-content: flex-end; }
.gap-1{gap:var(--space-1)}.gap-2{gap:var(--space-2)}.gap-3{gap:var(--space-3)}.gap-4{gap:var(--space-4)}.gap-5{gap:var(--space-5)}.gap-6{gap:var(--space-6)}.gap-8{gap:var(--space-8)}

.grid { display: grid; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.text-center{text-align:center}.text-left{text-align:left}.hidden{display:none!important}.block{display:block}.inline-flex{display:inline-flex}
.overflow-hidden{overflow:hidden}.truncate{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* Spacing */
.m-0{margin:0}.mt-1{margin-top:var(--space-1)}.mt-2{margin-top:var(--space-2)}.mt-3{margin-top:var(--space-3)}.mt-4{margin-top:var(--space-4)}.mt-6{margin-top:var(--space-6)}.mt-8{margin-top:var(--space-8)}
.mb-1{margin-bottom:var(--space-1)}.mb-2{margin-bottom:var(--space-2)}.mb-3{margin-bottom:var(--space-3)}.mb-4{margin-bottom:var(--space-4)}.mb-6{margin-bottom:var(--space-6)}.mb-8{margin-bottom:var(--space-8)}
.ml-auto{margin-left:auto}.mx-auto{margin-left:auto;margin-right:auto}
.p-4{padding:var(--space-4)}.p-6{padding:var(--space-6)}.p-8{padding:var(--space-8)}.py-3{padding-top:var(--space-3);padding-bottom:var(--space-3)}

/* Typography */
.text-h1{font-size:var(--text-h1)}.text-h2{font-size:var(--text-h2)}.text-h3{font-size:var(--text-h3)}.text-body{font-size:var(--text-body)}.text-sm{font-size:var(--text-body-sm)}.text-caption{font-size:var(--text-caption)}
.text-display{font-size:var(--text-h1);font-weight:var(--font-extrabold)}.text-error{color:var(--danger)}
.font-medium{font-weight:var(--font-medium)}.font-semibold{font-weight:var(--font-semibold)}.font-bold{font-weight:var(--font-bold)}.font-extrabold{font-weight:var(--font-extrabold)}
.text-white{color:var(--text-primary)}.text-secondary{color:var(--text-secondary)}.text-tertiary{color:var(--text-tertiary)}.text-accent{color:var(--accent-primary)}.text-success{color:var(--success)}

/* Gradient */
.gradient-text { background: var(--accent-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

/* Section */
.section { padding: var(--space-20) 0; position: relative; }
.section-divider { height: 1px; background: linear-gradient(90deg, transparent, var(--border), transparent); border: none; margin: 0; }

/* Glass */
.glass { background: var(--surface-glass); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border: 1px solid var(--border); }

/* ---- Animations ---- */
@keyframes fadeIn { from{opacity:0;transform:translateY(10px)} to{opacity:1;transform:translateY(0)} }
@keyframes fadeInUp { from{opacity:0;transform:translateY(24px)} to{opacity:1;transform:translateY(0)} }
@keyframes fadeInDown { from{opacity:0;transform:translateY(-12px)} to{opacity:1;transform:translateY(0)} }
@keyframes slideInRight { from{opacity:0;transform:translateX(24px)} to{opacity:1;transform:translateX(0)} }
@keyframes scaleIn { from{opacity:0;transform:scale(0.92)} to{opacity:1;transform:scale(1)} }
@keyframes spin { to{transform:rotate(360deg)} }
@keyframes fadeOut { from{opacity:1} to{opacity:0;transform:translateX(30px)} }
@keyframes float { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-8px)} }
@keyframes shimmer { 0%{background-position:-200% 0} 100%{background-position:200% 0} }
@keyframes blink { 50%{opacity:0} }

.animate-fade-in{animation:fadeIn .5s ease forwards}
.animate-fade-in-up{animation:fadeInUp .6s ease forwards}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  :root { --text-display-xl:2.5rem;--text-h1:1.75rem;--text-h2:1.375rem;--text-h3:1.0625rem; }
  .grid-3{grid-template-columns:repeat(2,1fr)}.grid-4{grid-template-columns:repeat(2,1fr)}
  .container{padding:0 var(--space-4)}
}
@media (max-width: 768px) {
  :root { --text-display-xl:2rem;--text-h1:1.5rem;--text-h2:1.25rem;--navbar-height:60px; }
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .section{padding:var(--space-12) 0}
  .hide-mobile{display:none!important}
}
@media (max-width: 480px) {
  :root { --text-display-xl:1.625rem;--text-h1:1.375rem; }
}