/* =========================================================
   TEMPLATEADDA — PROFESSIONAL BRAND SYSTEM (COMPLETE)
   Product-grade • Calm • Premium • Scalable
   ========================================================= */

:root {
  /* --- 1. TYPOGRAPHY --- */
  --ta-font-sans: "Inter", "Segoe UI", Roboto, sans-serif;
  --ta-font-display: "Poppins", var(--ta-font-sans);
  --ta-font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;

  --ta-text-xs: clamp(0.75rem, 0.72rem + 0.1vw, 0.8125rem);
  --ta-text-sm: clamp(0.875rem, 0.84rem + 0.15vw, 0.95rem);
  --ta-text-md: clamp(1rem, 0.96rem + 0.18vw, 1.0625rem);
  --ta-text-lg: clamp(1.125rem, 1.05rem + 0.35vw, 1.25rem);
  --ta-text-xl: clamp(1.375rem, 1.2rem + 0.8vw, 1.75rem);
  --ta-text-2xl: clamp(1.75rem, 1.45rem + 1vw, 2.25rem);

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

  /* --- 3. RADIUS --- */
  --ta-radius-sm: 0.5rem; --ta-radius-md: 0.75rem; --ta-radius-lg: 1rem;
  --ta-radius-xl: 1.25rem; --ta-radius-2xl: 1.5rem; --ta-radius-pill: 999px;

  /* --- 4. BRAND PALETTE --- */
  --ta-white: #ffffff;
  --ta-black: #0b1020;
  --ta-primary: #2837a1; 
  --ta-primary-hover: #1e2a8a;
  --ta-primary-active: #17216d;
  --ta-secondary: #7c3aed; 
  --ta-secondary-hover: #6d28d9;
  --ta-secondary-active: #5b21b6;
  --ta-accent: #0ea5e9;
  --ta-accent-soft: #f3e8ff;

  /* --- 5. SURFACES (Default Light) --- */
  --ta-bg: #f8f9fd;
  --ta-surface: #ffffff;
  --ta-surface-2: #f1f4ff;
  --ta-surface-3: #e8ecf7;
  --ta-surface-inset: #f0f2f5;

  /* --- 6. TEXT --- */
  --ta-text: #0f172a;
  --ta-text-soft: #475569;
  --ta-text-faint: #94a3b8;
  --ta-text-inverse: #f8fafc;

  /* --- 7. BORDERS --- */
  --ta-border: rgba(40, 55, 161, 0.08);
  --ta-border-strong: rgba(40, 55, 161, 0.14);
  --ta-divider: rgba(0, 0, 0, 0.05);

  /* --- 8. FEEDBACK --- */
  --ta-success: #10b981;
  --ta-warning: #f59e0b;
  --ta-danger: #ef4444;
  --ta-info: #3b82f6;

  /* --- 9. EFFECTS --- */
  --ta-gradient-brand: linear-gradient(135deg, #2837a1 0%, #7c3aed 50%, #9d50bb 100%);
  --ta-shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
  --ta-shadow-sm: 0 4px 12px rgba(40, 55, 161, 0.08);
  --ta-shadow-md: 0 12px 30px rgba(15, 23, 42, 0.08);
  --ta-shadow-lg: 0 20px 50px rgba(15, 23, 42, 0.12);

  /* --- 10. MOTION --- */
  --ta-transition-fast: 160ms cubic-bezier(0.4, 0, 0.2, 1);
  --ta-transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);

  /* --- 11. LAYOUT --- */
  --ta-container-lg: 1400px;
}

/* =========================
   DARK THEME OVERRIDES
   ========================= */
[data-theme="dark"] {
  --ta-bg: #060914; 
  --ta-surface: #0b1120;
  --ta-surface-2: #111a2e;
  --ta-surface-3: #1e293b;
  --ta-surface-inset: #04060d;
  --ta-text: #f1f5f9;
  --ta-text-soft: #94a3b8;
  --ta-text-faint: #64748b;
  --ta-text-inverse: #060914;
  --ta-border: rgba(255, 255, 255, 0.06);
  --ta-border-strong: rgba(255, 255, 255, 0.12);
  --ta-divider: rgba(255, 255, 255, 0.04);
  --ta-shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.3);
  --ta-shadow-sm: 0 6px 16px rgba(0, 0, 0, 0.4);
  --ta-shadow-md: 0 14px 34px rgba(0, 0, 0, 0.45);
  --ta-shadow-lg: 0 24px 60px rgba(0, 0, 0, 0.55);
  --ta-primary: #3d4dc6;
  --ta-secondary: #8b5cf6;
}

/* =========================
   RESET + BASE
   ========================= */
*, *::before, *::after { box-sizing: border-box; }

html { 
  scroll-behavior: smooth; 
  -webkit-text-size-adjust: 100%; 
  transition: background-color 0.2s ease, color 0.2s ease;
}

body {
  margin: 0; min-height: 100vh; background: var(--ta-bg); color: var(--ta-text);
  font-family: var(--ta-font-sans); font-size: var(--ta-text-md);
  line-height: 1.6; text-rendering: optimizeLegibility; -webkit-font-smoothing: antialiased;
}

img, svg, video { display: block; max-width: 100%; height: auto; }
a, button, input, textarea, select { font: inherit; color: inherit; transition: all var(--ta-transition-fast); }

/* =========================
   FIXED THEME TOGGLE
   ========================= */
.ta-icon-btn#themeToggle {
  position: fixed; top: 20px; right: 20px; z-index: 9999;
  width: 48px; height: 48px; display: flex; align-items: center; justify-content: center;
  border-radius: var(--ta-radius-md); background: var(--ta-surface);
  border: 1px solid var(--ta-border-strong); color: var(--ta-text);
  box-shadow: var(--ta-shadow-md); cursor: pointer;
}
.ta-icon-btn#themeToggle:hover { transform: translateY(-2px); background: var(--ta-primary); color: #fff; }

/* =========================
   SCROLLBAR
   ========================= */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--ta-bg); }
::-webkit-scrollbar-thumb { background: var(--ta-gradient-brand); border-radius: 10px; border: 3px solid var(--ta-bg); }

/* =========================
   TYPOGRAPHY
   ========================= */
h1, h2, h3, h4, h5, h6 { margin: 0 0 var(--ta-space-3); color: var(--ta-text); font-family: var(--ta-font-display); line-height: 1.15; letter-spacing: -0.02em; }
h1 { font-size: var(--ta-text-2xl); font-weight: 800; }
h2 { font-size: var(--ta-text-xl); font-weight: 700; }
h3 { font-size: var(--ta-text-lg); font-weight: 650; }
p { margin: 0 0 var(--ta-space-4); color: var(--ta-text-soft); }
a { color: var(--ta-primary); text-decoration: none; }
a:hover { color: var(--ta-primary-hover); }

/* =========================
   LAYOUT UTILITIES
   ========================= */
.ta-container { width: 100%; max-width: var(--ta-container-lg); margin-inline: auto; padding-inline: 20px; }
.ta-grid { display: grid; gap: var(--ta-space-6); }
.ta-grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.ta-grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.ta-flex { display: flex; align-items: center; gap: var(--ta-space-4); }
.ta-section { padding-block: var(--ta-space-16); }

/* =========================
   SURFACE UTILITIES
   ========================= */
.ta-surface-card { background: var(--ta-surface); border: 1px solid var(--ta-border); border-radius: var(--ta-radius-lg); padding: var(--ta-space-6); box-shadow: var(--ta-shadow-xs); }
.ta-surface-elevated { background: var(--ta-surface); border: 1px solid var(--ta-border-strong); border-radius: var(--ta-radius-xl); box-shadow: var(--ta-shadow-md); }
.ta-gradient-text { background: var(--ta-gradient-brand); -webkit-background-clip: text; background-clip: text; color: transparent; display: inline-block; }

/* =========================
   BUTTON SYSTEM
   ========================= */
/* =========================================================
   BUTTON SYSTEM (PREMIUM)
   ========================================================= */

.ta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0.75rem 1.75rem;
  border: 1px solid transparent;
  border-radius: var(--ta-radius-md, 12px);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  text-decoration: none;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base interaction */
.ta-btn:hover {
  transform: translateY(-2px);
}

.ta-btn:active {
  transform: scale(0.97);
}

/* --- PRIMARY (GRADIENT) --- */
.ta-btn-primary {
  background: var(--ta-gradient-brand);
  color: #ffffff !important;
  border: none;
  box-shadow: 0 4px 15px color-mix(in srgb, var(--ta-primary) 20%, transparent);
}

/* Shine effect */
.ta-btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.25), transparent);
  transition: left 0.6s ease;
}

.ta-btn-primary:hover::before {
  left: 100%;
}

.ta-btn-primary:hover {
  transform: translateY(-2px) scale(1.02);
  filter: brightness(1.05);
  box-shadow: 0 8px 25px color-mix(in srgb, var(--ta-primary) 30%, transparent);
}

/* --- SECONDARY (GLASS) --- */
.ta-btn-secondary {
  background: #ffffff;
  border: 1px solid var(--ta-primary);
  color: var(--ta-text);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.ta-btn-secondary:hover {
  background: var(--ta-surface-2);
  border-color: var(--ta-primary);
  color: var(--ta-primary);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.05);
}

/* --- GHOST (MINIMAL) --- */
.ta-btn-ghost {
  background: transparent;
  color: var(--ta-text-soft);
}

.ta-btn-ghost:hover {
  background: var(--ta-surface-2);
  color: var(--ta-text);
}

/* --- VARIANTS --- */
.ta-btn-pill {
  border-radius: 999px;
}

.ta-btn-sm {
  min-height: 38px;
  padding: 0.5rem 1.25rem;
  font-size: 13px;
}

.ta-btn-lg {
  min-height: 56px;
  padding: 1rem 2.25rem;
  font-size: 16px;
}

/* Icon Support */
.ta-btn i {
  font-size: 1.1em;
  line-height: 1;
}

/* =========================
   FORM SYSTEM
   ========================= */
.ta-form-group { margin-bottom: var(--ta-space-5); }
.ta-input { width: 100%; min-height: 50px; padding: 0.875rem 1.125rem; background: var(--ta-surface); border: 1px solid var(--ta-border-strong); border-radius: var(--ta-radius-md); color: var(--ta-text); outline: none; }
.ta-input:focus { border-color: var(--ta-secondary); box-shadow: 0 0 0 4px color-mix(in srgb, var(--ta-secondary) 15%, transparent); }

/* =========================
   BADGES
   ========================= */
.ta-badge { display: inline-flex; align-items: center; padding: 0.4rem 0.85rem; border-radius: var(--ta-radius-pill); font-size: 0.7rem; font-weight: 800; text-transform: uppercase; }
.ta-badge-primary { background: color-mix(in srgb, var(--ta-primary) 12%, transparent); color: var(--ta-primary); }

/* =========================
   RESPONSIVE
   ========================= */
@media (max-width: 768px) {
  .ta-container { padding-inline: 1rem; }
  .ta-btn { width: 100%; }
  .ta-icon-btn#themeToggle { top: 15px; right: 15px; width: 42px; height: 42px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}