@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.min.css');

:root {
  --font: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'SF Mono', 'JetBrains Mono', monospace;

  --bg-primary: #f7f9fb;
  --bg-surface: #ffffff;
  --bg-elevated: #ffffff;
  --bg-hover: #f1f5f9;
  --bg-active: #e8edf3;

  --text-primary: #1a1c1e;
  --text-secondary: #5b626c;
  --text-muted: #6b7280;
  --text-inverse: #ffffff;

  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-ripple: rgba(37, 99, 235, 0.16);
  --accent-blue: #2563eb;
  --accent-coral: #ef6b53;
  --accent-gold: #d4af37;

  --border: rgba(0, 0, 0, 0.06);
  --border-strong: rgba(0, 0, 0, 0.12);

  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;

  --grad-brand: linear-gradient(135deg, #2563eb 0%, #06b6d4 100%);
  --grad-brand-soft: linear-gradient(135deg, rgba(37,99,235,.10), rgba(6,182,212,.10));
  --glow-brand: 0 10px 25px -5px rgba(37,99,235,.30);

  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 20px -2px rgba(0,0,0,0.08);
  --shadow-lg: 0 15px 35px -5px rgba(0,0,0,0.12);
  --shadow-glow: 0 8px 24px -4px rgba(37,99,235,0.18);

  --transition-fast: 0.15s ease;
  --transition-base: 0.25s cubic-bezier(0.4,0,0.2,1);
  --transition-slow: 0.4s cubic-bezier(0.4,0,0.2,1);

  --header-h: 56px;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  color-scheme: light;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  height: 100%;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.5;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background:
    radial-gradient(700px 360px at 50% -6%, rgba(37,99,235,.06), transparent 70%),
    var(--bg-primary);
  background-attachment: fixed;
}

#app {
  height: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

button {
  font-family: inherit;
  border: none;
  cursor: pointer;
  background: none;
  color: inherit;
}

input, textarea, select {
  font-family: inherit;
  font-size: 1rem;
  color: var(--text-primary);
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  outline: none;
  width: 100%;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--text-muted) 50%), linear-gradient(135deg, var(--text-muted) 50%, transparent 50%);
  background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  padding-right: 36px;
}

input:focus, textarea:focus, select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-ripple);
}

::placeholder {
  color: var(--text-muted);
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes slideUp {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.92); }
  to { opacity: 1; transform: scale(1); }
}
@keyframes pulse-ring {
  0% { transform: scale(0.8); opacity: 0.8; }
  100% { transform: scale(1.6); opacity: 0; }
}
@keyframes pop {
  0% { transform: scale(0.95); }
  50% { transform: scale(1.02); }
  100% { transform: scale(1); }
}
@keyframes gradShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
@keyframes shimmer {
  0% { transform: translateX(-120%); }
  100% { transform: translateX(220%); }
}
@keyframes breathe {
  0%, 100% { box-shadow: var(--shadow-md), var(--glow-brand); }
  50% { box-shadow: var(--shadow-md), 0 14px 40px rgba(34,211,238,.45); }
}