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

:root {
  --bg: #fafafa; --bg-2: #f0f0f2; --bg-card: #ffffff;
  --bg-nav: rgba(250,250,250,0.82);
  --text: #0a0a0a; --text-2: #666;
  --border: rgba(0,0,0,0.07); --border-2: #e2e2e5;
  --blue: #0066cc; --blue-h: #0055aa;
  --green: #22c55e; --red: #ef4444; --orange: #f59e0b; --purple: #8b5cf6;
  --shadow: 0 1px 12px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.14);
  --radius: 12px; --radius-sm: 8px; --radius-full: 999px;
  --font: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', sans-serif;
}
[data-theme="dark"] {
  --bg: #0c0c0d; --bg-2: #161618; --bg-card: #1e1e20;
  --bg-nav: rgba(12,12,13,0.88);
  --text: #f0f0f0; --text-2: #888;
  --border: rgba(255,255,255,0.07); --border-2: rgba(255,255,255,0.1);
  --shadow: 0 1px 12px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.55);
}

html { scroll-behavior: smooth; }
body { font-family: var(--font); background: var(--bg); color: var(--text); transition: background .3s, color .3s; -webkit-font-smoothing: antialiased; line-height: 1.5; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 10px 20px; border-radius: var(--radius-full); font-size: 14px; font-weight: 600; font-family: var(--font); border: none; cursor: pointer; text-decoration: none; transition: all .18s; white-space: nowrap; letter-spacing: -.01em; }
.btn:active { transform: scale(.97); }
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-h); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(0,102,204,.28); }
.btn-secondary { background: var(--bg-card); color: var(--text); border: 1px solid var(--border-2); }
.btn-secondary:hover { border-color: var(--blue); color: var(--blue); transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--blue); padding: 8px 14px; }
.btn-ghost:hover { background: rgba(0,102,204,.07); }
.btn-danger { background: var(--red); color: #fff; }
.btn-danger:hover { background: #dc2626; transform: translateY(-1px); }
.btn-sm { padding: 7px 14px; font-size: 13px; }
.btn-lg { padding: 14px 32px; font-size: 16px; }
.btn:disabled { opacity: .45; cursor: not-allowed; transform: none !important; box-shadow: none !important; }

.field { margin-bottom: 14px; }
.label { display: block; font-size: 11px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--text-2); margin-bottom: 6px; }
.input, .select, textarea { width: 100%; padding: 11px 14px; border-radius: var(--radius-sm); border: 1.5px solid var(--border-2); background: var(--bg); color: var(--text); font-family: var(--font); font-size: 14px; outline: none; transition: border-color .2s, box-shadow .2s, background .3s, color .3s; }
.input:focus, .select:focus, textarea:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(0,102,204,.1); }
.input::placeholder, textarea::placeholder { color: var(--text-2); opacity: .6; }
.select { appearance: none; cursor: pointer; }

.toggle { width: 40px; height: 24px; border-radius: 12px; border: none; cursor: pointer; position: relative; flex-shrink: 0; transition: background .25s; }
.toggle.on { background: var(--blue); } .toggle.off { background: var(--border-2); }
.toggle::after { content: ''; position: absolute; top: 3px; left: 3px; width: 18px; height: 18px; border-radius: 50%; background: #fff; box-shadow: 0 1px 4px rgba(0,0,0,.2); transition: transform .25s cubic-bezier(.23,1,.32,1); }
.toggle.on::after { transform: translateX(16px); }

.card { background: var(--bg-card); border-radius: var(--radius); border: 1px solid var(--border); box-shadow: var(--shadow); transition: background .3s, border-color .3s; }
.badge { display: inline-flex; align-items: center; gap: 4px; padding: 3px 9px; border-radius: var(--radius-full); font-size: 11px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; }
.badge-blue { background: rgba(0,102,204,.1); color: var(--blue); }
.badge-green { background: rgba(34,197,94,.12); color: var(--green); }
.badge-red { background: rgba(239,68,68,.12); color: var(--red); }
.badge-orange { background: rgba(245,158,11,.12); color: var(--orange); }
.badge-gray { background: var(--border); color: var(--text-2); }

.topnav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; height: 56px; display: flex; align-items: center; justify-content: space-between; padding: 0 40px; background: var(--bg-nav); backdrop-filter: saturate(160%) blur(16px); -webkit-backdrop-filter: saturate(160%) blur(16px); border-bottom: 1px solid var(--border); transition: background .3s, border-color .3s; }
.nav-logo { font-size: 17px; font-weight: 800; letter-spacing: -.04em; color: var(--text); text-decoration: none; display: flex; align-items: center; gap: 7px; }
.nav-logo .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--blue); display: inline-block; }
.nav-links { display: flex; gap: 4px; list-style: none; }
.nav-links a { font-size: 13px; font-weight: 500; color: var(--text-2); text-decoration: none; padding: 6px 12px; border-radius: var(--radius-sm); transition: background .15s, color .15s; }
.nav-links a:hover { background: var(--border); color: var(--text); }
.nav-right { display: flex; align-items: center; gap: 10px; }
.nav-theme { width: 32px; height: 20px; border-radius: 10px; border: none; cursor: pointer; background: var(--border-2); position: relative; transition: background .25s; flex-shrink: 0; }
[data-theme="dark"] .nav-theme { background: var(--blue); }
.nav-theme::after { content: ''; position: absolute; top: 2px; left: 2px; width: 16px; height: 16px; border-radius: 50%; background: #fff; box-shadow: 0 1px 3px rgba(0,0,0,.2); transition: transform .25s cubic-bezier(.23,1,.32,1); }
[data-theme="dark"] .nav-theme::after { transform: translateX(12px); }

.spinner { width: 18px; height: 18px; border: 2px solid var(--border); border-top-color: var(--blue); border-radius: 50%; animation: spin .65s linear infinite; }
.spinner-lg { width: 32px; height: 32px; border-width: 3px; }
@keyframes spin { to { transform: rotate(360deg); } }

.toast-container { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%); z-index: 9000; display: flex; flex-direction: column; align-items: center; gap: 8px; pointer-events: none; }
.toast-item { background: var(--text); color: var(--bg); padding: 11px 20px; border-radius: var(--radius-full); font-size: 13px; font-weight: 600; white-space: nowrap; animation: toastIn .3s cubic-bezier(.23,1,.32,1) forwards; }
.toast-item.out { animation: toastOut .25s ease forwards; }
@keyframes toastIn { from { opacity:0; transform:translateY(10px) scale(.96); } to { opacity:1; transform:translateY(0) scale(1); } }
@keyframes toastOut { to { opacity:0; transform:translateY(-6px) scale(.96); } }

.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,.5); display: flex; align-items: center; justify-content: center; z-index: 500; opacity: 0; pointer-events: none; transition: opacity .2s; }
.modal-overlay.open { opacity: 1; pointer-events: all; }
.modal-box { background: var(--bg-card); border-radius: 18px; padding: 28px; width: min(440px,94vw); box-shadow: var(--shadow-lg); border: 1px solid var(--border); transform: scale(.96) translateY(8px); transition: transform .28s cubic-bezier(.23,1,.32,1); }
.modal-overlay.open .modal-box { transform: scale(1) translateY(0); }
.modal-title { font-size: 18px; font-weight: 800; letter-spacing: -.03em; margin-bottom: 20px; }
.modal-footer { display: flex; gap: 8px; justify-content: flex-end; margin-top: 20px; }

.text-2 { color: var(--text-2); } .text-blue { color: var(--blue); } .text-red { color: var(--red); }
.flex { display: flex; } .items-center { align-items: center; } .justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; } .gap-3 { gap: 12px; } .gap-4 { gap: 16px; }
.mt-2 { margin-top: 8px; } .mt-4 { margin-top: 16px; }
.w-full { width: 100%; }
.divider { border: none; border-top: 1px solid var(--border); margin: 16px 0; }
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .55s cubic-bezier(.23,1,.32,1), transform .55s cubic-bezier(.23,1,.32,1); }
.reveal.in { opacity: 1; transform: translateY(0); }