/* ============================================================
   TALAN.PRO — Design System
   Liquid Glass Aesthetic
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ── Custom Properties ── */
:root {
  /* Colors */
  --bg-base:          #0a0a0f;
  --bg-surface:       #0d0d14;
  --bg-elevated:      #111118;

  --glass-bg:         rgba(255, 255, 255, 0.055);
  --glass-bg-hover:   rgba(255, 255, 255, 0.085);
  --glass-bg-active:  rgba(255, 255, 255, 0.11);
  --glass-border:     rgba(255, 255, 255, 0.08);
  --glass-border-hover: rgba(255, 255, 255, 0.16);

  --accent-blue:      #4fc3f7;
  --accent-violet:    #b388ff;
  --accent-blue-dim:  rgba(79, 195, 247, 0.15);
  --accent-violet-dim: rgba(179, 136, 255, 0.15);

  --glow-blue:        0 0 24px rgba(79, 195, 247, 0.35), 0 0 48px rgba(79, 195, 247, 0.12);
  --glow-violet:      0 0 24px rgba(179, 136, 255, 0.35), 0 0 48px rgba(179, 136, 255, 0.12);
  --glow-soft:        0 8px 32px rgba(0, 0, 0, 0.4), 0 2px 8px rgba(0, 0, 0, 0.3);

  --text-primary:     rgba(255, 255, 255, 0.95);
  --text-secondary:   rgba(255, 255, 255, 0.60);
  --text-muted:       rgba(255, 255, 255, 0.35);
  --text-accent:      var(--accent-blue);

  /* Typography */
  --font-sans:        'Inter', system-ui, -apple-system, sans-serif;
  --font-mono:        'SF Mono', 'Fira Code', 'Fira Mono', monospace;

  --text-xs:    0.75rem;
  --text-sm:    0.875rem;
  --text-base:  1rem;
  --text-lg:    1.125rem;
  --text-xl:    1.25rem;
  --text-2xl:   1.5rem;
  --text-3xl:   1.875rem;
  --text-4xl:   2.25rem;
  --text-5xl:   3rem;
  --text-6xl:   3.75rem;
  --text-7xl:   4.5rem;

  --weight-light:    300;
  --weight-regular:  400;
  --weight-medium:   500;
  --weight-semibold: 600;
  --weight-bold:     700;
  --weight-extrabold:800;
  --weight-black:    900;

  --tracking-tight:  -0.04em;
  --tracking-snug:   -0.02em;
  --tracking-normal: 0;
  --tracking-wide:   0.04em;
  --tracking-wider:  0.08em;

  /* 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;
  --space-32: 8rem;

  /* Radius */
  --radius-sm:   6px;
  --radius-md:   12px;
  --radius-lg:   16px;
  --radius-xl:   24px;
  --radius-2xl:  32px;
  --radius-full: 9999px;

  /* Blur */
  --blur-sm:  blur(4px);
  --blur-md:  blur(10px);
  --blur-lg:  blur(18px);
  --blur-xl:  blur(28px);

  /* Transitions */
  --ease-out:   cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in:    cubic-bezier(0.4, 0, 1, 1);
  --ease-inout: cubic-bezier(0.45, 0, 0.55, 1);
  --ease-spring:cubic-bezier(0.34, 1.56, 0.64, 1);

  --duration-fast:   150ms;
  --duration-base:   250ms;
  --duration-slow:   400ms;
  --duration-slower: 600ms;

  /* Z-index */
  --z-base:    1;
  --z-dropdown:100;
  --z-sticky:  200;
  --z-overlay: 300;
  --z-modal:   400;
  --z-toast:   500;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--weight-regular);
  color: var(--text-primary);
  background-color: var(--bg-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, video, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: inherit; }
input, textarea, select { font-family: inherit; }
ul, ol { list-style: none; }

/* ── Glass Utility Classes ── */
.glass {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: var(--blur-md);
  -webkit-backdrop-filter: var(--blur-md);
  border-radius: var(--radius-lg);
}

.glass-sm {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: var(--blur-sm);
  -webkit-backdrop-filter: var(--blur-sm);
  border-radius: var(--radius-md);
}

.glass-xl {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: var(--blur-xl);
  -webkit-backdrop-filter: var(--blur-xl);
  border-radius: var(--radius-2xl);
}

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

/* ── Text Utilities ── */
.gradient-text {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-violet));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.gradient-text-warm {
  background: linear-gradient(135deg, #fff 0%, var(--accent-blue) 50%, var(--accent-violet) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-primary   { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted     { color: var(--text-muted); }
.text-accent    { color: var(--accent-blue); }
.text-violet    { color: var(--accent-violet); }

/* ── Button Variants ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  border: none;
  outline: none;
  transition:
    transform var(--duration-fast) var(--ease-spring),
    box-shadow var(--duration-base) var(--ease-out),
    background var(--duration-base) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.08);
  opacity: 0;
  transition: opacity var(--duration-fast);
}

.btn:hover::before { opacity: 1; }
.btn:active { transform: scale(0.97); }

.btn-primary {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-violet));
  color: #fff;
  box-shadow: var(--glow-blue);
}

.btn-primary:hover {
  box-shadow: var(--glow-blue), var(--glow-violet);
  transform: translateY(-1px) scale(1.02);
}

.btn-glass {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: var(--blur-md);
  -webkit-backdrop-filter: var(--blur-md);
  color: var(--text-primary);
}

.btn-glass:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
  transform: translateY(-1px) scale(1.02);
}

/* ── Badge ── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
}

.badge-blue {
  background: var(--accent-blue-dim);
  color: var(--accent-blue);
  border: 1px solid rgba(79, 195, 247, 0.2);
}

.badge-violet {
  background: var(--accent-violet-dim);
  color: var(--accent-violet);
  border: 1px solid rgba(179, 136, 255, 0.2);
}

/* ── Divider ── */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--glass-border), transparent);
  border: none;
}

/* ── Focus visible ── */
:focus-visible {
  outline: 2px solid var(--accent-blue);
  outline-offset: 2px;
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.1);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); }

/* ── Selection ── */
::selection {
  background: rgba(79, 195, 247, 0.25);
  color: var(--text-primary);
}

/* ── Background orbs (shared base) ── */
.bg-orbs {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(40px);
}

/* ── Hero badge (shared) ── */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--accent-blue);
}

.hero-badge-dot {
  width: 6px;
  height: 6px;
  background: var(--accent-blue);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-blue);
  flex-shrink: 0;
}

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