/* ============================================================
   style.css — Global Design System
   Light Mode — Clean White Theme
   ============================================================ */

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

/* ── Custom Properties ─────────────────────────────────── */
:root {
  /* Backgrounds */
  --bg-base:       #f4f6fb;
  --bg-surface:    #ffffff;
  --bg-elevated:   #f0f3fa;
  --bg-hover:      #e8edf8;
  --glass:         rgba(255,255,255,0.85);
  --glass-border:  rgba(0,0,0,0.07);

  /* Accent — purple stays vibrant on light bg */
  --accent:        #6c3ce1;
  --accent-light:  #8b5cf6;
  --accent-glow:   rgba(108,60,225,0.12);
  --accent2:       #06b6d4;
  --accent2-glow:  rgba(6,182,212,0.12);

  /* Text */
  --text-primary:  #1a1a2e;
  --text-secondary:#4b5a7a;
  --text-muted:    #8e9abf;

  /* Status */
  --success:       #16a34a;
  --danger:        #dc2626;
  --warning:       #d97706;

  /* Spacing */
  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-xl:  32px;

  /* Shadows — softer for light mode */
  --shadow-sm:  0 1px 4px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md:  0 4px 16px rgba(0,0,0,0.08), 0 2px 6px rgba(0,0,0,0.05);
  --shadow-lg:  0 12px 40px rgba(0,0,0,0.1),  0 4px 12px rgba(0,0,0,0.06);
  --glow-accent: 0 0 20px rgba(108,60,225,0.18);

  /* Transitions */
  --t-fast:   0.15s ease;
  --t-normal: 0.25s ease;
  --t-slow:   0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg-base);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; transition: color var(--t-fast); }
a:hover { color: var(--accent-light); }

img { max-width: 100%; display: block; }

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  outline: none;
  transition: all var(--t-normal);
}

input, textarea, select {
  font-family: inherit;
  background: var(--bg-elevated);
  color: var(--text-primary);
  border: 1.5px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 0.9rem;
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
  width: 100%;
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
  background: #fff;
}

/* ── Scrollbar ─────────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #d1d9f0; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent-light); }

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: all var(--t-normal);
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: #fff;
  box-shadow: 0 3px 12px rgba(108,60,225,0.3);
  border: none;
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(108,60,225,0.4);
}
.btn-primary:active { transform: translateY(0); }

.btn-ghost {
  background: #fff;
  color: var(--text-secondary);
  border: 1.5px solid var(--glass-border);
  box-shadow: var(--shadow-sm);
}
.btn-ghost:hover {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border-color: var(--accent);
}

.btn-danger {
  background: rgba(220,38,38,0.08);
  color: var(--danger);
  border: 1.5px solid rgba(220,38,38,0.2);
}
.btn-danger:hover {
  background: var(--danger);
  color: #fff;
}

.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--accent-glow);
  color: var(--accent);
  border: 1px solid rgba(108,60,225,0.2);
}

/* ── Notification Toast ────────────────────────────────── */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  padding: 14px 20px;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  background: #fff;
  border: 1.5px solid var(--glass-border);
  box-shadow: var(--shadow-lg);
  animation: toastIn 0.3s var(--t-slow);
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 260px;
}

.toast.success { border-color: var(--success); color: var(--success); }
.toast.error   { border-color: var(--danger);  color: var(--danger); }
.toast.info    { border-color: var(--accent);  color: var(--accent); }

@keyframes toastIn {
  from { opacity: 0; transform: translateX(40px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* ── Responsive ────────────────────────────────────────── */
@media (max-width: 768px) {
  .btn { padding: 9px 16px; font-size: 0.8rem; }
}