/* ================================================================
   Design tokens + base components
   ================================================================ */
@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/variable/pretendardvariable-dynamic-subset.min.css');

:root {
  /* Light — warm minimal */
  --bg: #fafaf7;
  --bg-elevated: #ffffff;
  --bg-muted: #f3f2ef;
  --bg-hover: #ebeae5;
  --bg-subtle: #f8f7f4;

  --fg: #18181d;
  --fg-muted: #6c6c75;
  --fg-faint: #a3a3ad;

  --border: #e6e5e0;
  --border-strong: #d3d2cb;

  --accent: #6d28d9;
  --accent-soft: #ede9fe;
  --accent-hover: #5b21b6;
  --accent-fg: #ffffff;
  --accent-glow: rgba(109,40,217,0.18);

  --danger: #dc2626;
  --danger-fg: #ffffff;
  --success: #15803d;
  --warning: #d97706;

  /* Sizing */
  --radius-sm: 6px;
  --radius: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-pill: 999px;
  --header-h: 56px;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(20,20,30,0.05);
  --shadow-sm: 0 1px 3px rgba(20,20,30,0.08), 0 1px 2px rgba(20,20,30,0.04);
  --shadow:    0 4px 12px rgba(20,20,30,0.06), 0 2px 6px rgba(20,20,30,0.04);
  --shadow-lg: 0 16px 40px rgba(20,20,30,0.10), 0 4px 12px rgba(20,20,30,0.06);
  --shadow-glow: 0 0 0 3px var(--accent-glow);

  /* Type */
  --font-sans: 'Pretendard Variable', 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  --font-serif: 'Noto Serif KR', 'Source Serif Pro', Georgia, serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d0d12;
    --bg-elevated: #15151c;
    --bg-muted: #1c1c26;
    --bg-hover: #25252f;
    --bg-subtle: #11111a;

    --fg: #ededef;
    --fg-muted: #a0a0ae;
    --fg-faint: #6c6c78;

    --border: #2a2a35;
    --border-strong: #3c3c48;

    --accent: #a78bfa;
    --accent-soft: rgba(167,139,250,0.16);
    --accent-hover: #c4b5fd;
    --accent-fg: #15151c;
    --accent-glow: rgba(167,139,250,0.25);

    --danger: #f87171;
    --success: #4ade80;
    --warning: #fbbf24;

    --shadow-xs: 0 1px 2px rgba(0,0,0,0.30);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.40), 0 1px 2px rgba(0,0,0,0.20);
    --shadow:    0 4px 14px rgba(0,0,0,0.40), 0 2px 6px rgba(0,0,0,0.30);
    --shadow-lg: 0 24px 48px rgba(0,0,0,0.55), 0 8px 20px rgba(0,0,0,0.35);
  }
}

body {
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.55;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* ===== Header ===== */
.app-header {
  height: var(--header-h);
  display: flex;
  align-items: center;
  padding: 0 22px;
  background: color-mix(in srgb, var(--bg-elevated) 78%, transparent);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--border);
  gap: 14px;
  position: sticky;
  top: 0;
  z-index: 100;
}
.app-header .brand {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -0.015em;
  background: linear-gradient(135deg, var(--accent) 0%, color-mix(in srgb, var(--accent) 60%, #ec4899) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.app-header .brand a { background: inherit; -webkit-background-clip: text; background-clip: text; color: transparent; }
.app-header .nav { display: flex; gap: 2px; margin-left: 8px; }
.app-header .nav a {
  color: var(--fg-muted);
  padding: 6px 12px;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  transition: background .18s, color .18s;
}
.app-header .nav a:hover { background: var(--bg-hover); color: var(--fg); }
.app-header .nav a.active { color: var(--accent); background: var(--accent-soft); }
.app-header .spacer { flex: 1; }
.app-header .user-area {
  display: flex; align-items: center; gap: 10px;
  font-size: 13px; color: var(--fg-muted);
}
.app-header .user-area .user-name { color: var(--fg); font-weight: 500; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border-strong);
  background: var(--bg-elevated);
  color: var(--fg);
  font-size: 13px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: transform .12s, box-shadow .15s, background .15s, border-color .15s;
  white-space: nowrap;
  position: relative;
}
.btn:hover {
  background: var(--bg-hover);
  border-color: var(--fg-faint);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}
.btn:active { transform: translateY(0); box-shadow: none; }
.btn:focus-visible { box-shadow: var(--shadow-glow); outline: none; border-color: var(--accent); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none !important; box-shadow: none !important; }

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
  color: var(--accent-fg);
  border-color: transparent;
  box-shadow: 0 1px 2px rgba(109,40,217,0.20), inset 0 1px 0 rgba(255,255,255,0.12);
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--accent-hover) 0%, var(--accent) 100%);
  color: var(--accent-fg);
  filter: brightness(1.08);
  box-shadow: 0 8px 20px rgba(109,40,217,0.28), inset 0 1px 0 rgba(255,255,255,0.15);
  border-color: transparent;
}

.btn-danger { background: var(--danger); color: var(--danger-fg); border-color: var(--danger); }
.btn-danger:hover { background: var(--danger); color: var(--danger-fg); filter: brightness(0.92); border-color: var(--danger); }

.btn-ghost { background: transparent; border-color: transparent; color: var(--fg-muted); box-shadow: none; }
.btn-ghost:hover { background: var(--bg-hover); color: var(--fg); border-color: transparent; box-shadow: none; transform: none; }

.btn-sm { padding: 5px 11px; font-size: 12px; }
.btn-block { width: 100%; }

/* ===== Inputs ===== */
.input, .textarea, .select {
  width: 100%;
  padding: 9px 12px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--fg);
  font-size: 13px;
  font-family: inherit;
  outline: none;
  transition: border-color .15s, box-shadow .15s, background .15s;
}
.input::placeholder, .textarea::placeholder { color: var(--fg-faint); }
.input:hover, .textarea:hover, .select:hover { border-color: var(--border-strong); }
.input:focus, .textarea:focus, .select:focus {
  border-color: var(--accent);
  box-shadow: var(--shadow-glow);
}
.textarea { resize: vertical; min-height: 80px; line-height: 1.55; font-family: inherit; }

/* ===== Field ===== */
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.field label {
  font-size: 12px;
  font-weight: 600;
  color: var(--fg-muted);
  letter-spacing: 0.01em;
}
.field .help {
  font-size: 11px;
  color: var(--fg-faint);
  line-height: 1.55;
  margin-top: 2px;
}
.field code, code {
  font-family: var(--font-mono);
  font-size: 10.5px;
  background: var(--bg-muted);
  padding: 1px 6px;
  border-radius: 4px;
  color: var(--fg-muted);
  border: 1px solid var(--border);
}
.row { display: flex; gap: 12px; }
.row > * { flex: 1; }

/* ===== Cards ===== */
.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
  box-shadow: var(--shadow-xs);
  transition: box-shadow .2s, border-color .2s;
}

/* ===== Toast ===== */
#toast-host {
  position: fixed;
  bottom: 24px; right: 24px;
  display: flex; flex-direction: column; gap: 8px;
  z-index: 9999;
  pointer-events: none;
}
.toast {
  background: color-mix(in srgb, var(--fg) 95%, transparent);
  color: var(--bg);
  padding: 10px 16px;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  pointer-events: auto;
  animation: toast-in .3s cubic-bezier(0.16,1,0.3,1);
  max-width: 380px;
  backdrop-filter: blur(8px);
}
.toast.error { background: var(--danger); color: white; }
.toast.success { background: var(--success); color: white; }
@keyframes toast-in { from { transform: translateY(14px); opacity: 0; } }

/* ===== Modal ===== */
.modal-backdrop {
  position: fixed; inset: 0;
  background: color-mix(in srgb, #050507 55%, transparent);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 200;
  display: flex; align-items: center; justify-content: center;
  padding: 24px;
  animation: fade-in .2s;
}
@keyframes fade-in { from { opacity: 0; } }
.modal {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 720px;
  max-height: 90vh;
  display: flex; flex-direction: column;
  overflow: hidden;
  animation: modal-in .25s cubic-bezier(0.16,1,0.3,1);
}
@keyframes modal-in { from { transform: translateY(10px) scale(0.98); opacity: 0; } }
.modal-header {
  padding: 16px 22px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.modal-header h2 { font-size: 15px; font-weight: 600; letter-spacing: -0.01em; }
.modal-body { padding: 20px 22px; overflow-y: auto; flex: 1; }
.modal-footer {
  padding: 14px 22px;
  border-top: 1px solid var(--border);
  display: flex; gap: 8px; justify-content: flex-end;
  background: var(--bg-subtle);
}

/* ===== Spinner ===== */
.spinner {
  display: inline-block;
  width: 12px; height: 12px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin .65s linear infinite;
  vertical-align: -2px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== Scrollbar polish ===== */
* { scrollbar-width: thin; scrollbar-color: var(--border-strong) transparent; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 999px;
  border: 2px solid transparent;
  background-clip: padding-box;
}
::-webkit-scrollbar-thumb:hover { background: var(--fg-faint); background-clip: padding-box; border: 2px solid transparent; }

/* ===== Utils ===== */
.muted { color: var(--fg-muted); }
.faint { color: var(--fg-faint); }
.small { font-size: 12px; }
.tiny  { font-size: 11px; }
.flex { display: flex; }
.flex-col { display: flex; flex-direction: column; }
.gap-4{gap:4px;}.gap-6{gap:6px;}.gap-8{gap:8px;}.gap-12{gap:12px;}.gap-16{gap:16px;}
.mt-8{margin-top:8px;}.mt-12{margin-top:12px;}.mt-16{margin-top:16px;}.mt-24{margin-top:24px;}
.mb-8{margin-bottom:8px;}.mb-12{margin-bottom:12px;}.mb-16{margin-bottom:16px;}
.text-center{text-align:center;}