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

:root {
  --bg: #0a0a0b;
  --surface: #111114;
  --surface2: #18181d;
  --border: rgba(255,255,255,0.07);
  --accent: #e8c547;
  --accent2: #ff4d6d;
  --text: #f0f0f0;
  --muted: #666;
  --success: #4ade80;
  --radius: 12px;
}

body { background: var(--bg); color: var(--text); font-family: 'DM Sans', sans-serif; }

.app { min-height: 100vh; display: flex; }

.sidebar {
  width: 220px; min-height: 100vh; background: var(--surface);
  border-right: 1px solid var(--border); display: flex; flex-direction: column;
  padding: 24px 0; position: fixed; top: 0; left: 0; bottom: 0; z-index: 100;
}
.sidebar-logo {
  font-family: 'Bebas Neue', sans-serif; font-size: 22px; letter-spacing: 3px;
  color: var(--accent); padding: 0 24px 28px; border-bottom: 1px solid var(--border);
}
.sidebar-logo span { color: var(--text); }
.nav { padding: 20px 12px; flex: 1; display: flex; flex-direction: column; gap: 4px; }
.nav-item {
  display: flex; align-items: center; gap: 10px; padding: 10px 12px;
  border-radius: 8px; cursor: pointer; font-size: 14px; font-weight: 500;
  color: var(--muted); transition: all 0.15s; border: none; background: none; text-align: left; width: 100%;
}
.nav-item:hover { background: var(--surface2); color: var(--text); }
.nav-item.active { background: rgba(232,197,71,0.12); color: var(--accent); }
.nav-item .icon { width: 18px; text-align: center; }
.sidebar-footer { padding: 16px 24px; border-top: 1px solid var(--border); font-size: 12px; color: var(--muted); }
.user-badge { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; }
.avatar { width: 30px; height: 30px; border-radius: 50%; background: var(--accent); display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 12px; color: #000; }
.logout-btn { background: none; border: 1px solid var(--border); color: var(--muted); padding: 6px 12px; border-radius: 6px; cursor: pointer; font-size: 12px; width: 100%; transition: all 0.15s; }
.logout-btn:hover { border-color: var(--accent2); color: var(--accent2); }

.main { margin-left: 220px; flex: 1; padding: 40px; }
.page-header { margin-bottom: 32px; }
.page-title { font-family: 'Bebas Neue', sans-serif; font-size: 36px; letter-spacing: 2px; color: var(--text); }
.page-sub { color: var(--muted); font-size: 14px; margin-top: 4px; }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.card-title { font-size: 13px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; color: var(--muted); margin-bottom: 16px; }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 24px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }

.stat-value { font-family: 'Bebas Neue', sans-serif; font-size: 42px; letter-spacing: 1px; }
.stat-label { font-size: 13px; color: var(--muted); margin-top: 2px; }
.stat-delta { font-size: 12px; margin-top: 6px; }
.stat-delta.up { color: var(--success); }
.stat-delta.warn { color: var(--accent); }

.upload-zone {
  border: 2px dashed var(--border); border-radius: var(--radius); padding: 48px 24px;
  text-align: center; cursor: pointer; transition: all 0.2s; position: relative;
}
.upload-zone:hover { border-color: var(--accent); background: rgba(232,197,71,0.04); }
.upload-icon { font-size: 40px; margin-bottom: 12px; }
.upload-text { font-size: 15px; font-weight: 500; color: var(--text); margin-bottom: 6px; }
.upload-hint { font-size: 13px; color: var(--muted); }
.upload-zone input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }

.ad-canvas {
  border-radius: var(--radius); overflow: hidden; position: relative; aspect-ratio: 16/9;
  background: linear-gradient(135deg, #0d0d1a 0%, #1a0a2e 100%);
  display: flex; align-items: center; justify-content: center;
}
.ad-canvas img { width: 100%; height: 100%; object-fit: contain; }

.btn { display: inline-flex; align-items: center; gap: 8px; padding: 10px 20px; border-radius: 8px; font-size: 14px; font-weight: 600; cursor: pointer; border: none; transition: all 0.15s; text-decoration: none; }
.btn-primary { background: var(--accent); color: #000; }
.btn-primary:hover { background: #f5d55a; transform: translateY(-1px); }
.btn-outline { background: none; border: 1px solid var(--border); color: var(--text); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.btn-danger { background: none; border: 1px solid rgba(255,77,109,0.3); color: var(--accent2); }
.btn-danger:hover { background: rgba(255,77,109,0.1); }
.btn-sm { padding: 6px 14px; font-size: 13px; }
.btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none !important; }

.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 12px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; color: var(--muted); margin-bottom: 8px; }
.form-input, .form-select {
  width: 100%; background: var(--bg); border: 1px solid var(--border); color: var(--text);
  padding: 10px 14px; border-radius: 8px; font-size: 14px; font-family: 'DM Sans', sans-serif;
}
.form-input:focus, .form-select:focus { outline: none; border-color: var(--accent); }

.table { width: 100%; border-collapse: collapse; }
.table th { font-size: 11px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--muted); padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--border); }
.table td { padding: 12px 14px; font-size: 14px; border-bottom: 1px solid var(--border); }
.table tr:last-child td { border-bottom: none; }
.table tr:hover td { background: var(--surface2); }

.badge { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 11px; font-weight: 600; }
.badge-success { background: rgba(74,222,128,0.15); color: var(--success); }
.badge-warn { background: rgba(232,197,71,0.15); color: var(--accent); }
.badge-info { background: rgba(96,165,250,0.15); color: #60a5fa; }
.badge-gray { background: rgba(255,255,255,0.08); color: var(--muted); }

.login-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: var(--bg); position: relative; overflow: hidden; }
.login-bg { position: absolute; inset: 0; background: radial-gradient(ellipse at 20% 50%, rgba(232,197,71,0.06) 0%, transparent 60%), radial-gradient(ellipse at 80% 20%, rgba(255,77,109,0.05) 0%, transparent 50%); }
.login-card { position: relative; z-index: 1; width: 400px; background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 40px; }
.login-title { font-family: 'Bebas Neue', sans-serif; font-size: 32px; letter-spacing: 3px; color: var(--accent); margin-bottom: 4px; }
.login-sub { font-size: 13px; color: var(--muted); margin-bottom: 32px; }

.progress-bar { height: 4px; background: var(--border); border-radius: 2px; overflow: hidden; margin-top: 8px; }
.progress-fill { height: 100%; background: var(--accent); border-radius: 2px; transition: width 0.5s ease; }

.format-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.format-card { border: 1px solid var(--border); border-radius: 8px; padding: 14px 10px; text-align: center; cursor: pointer; transition: all 0.15s; }
.format-card:hover { border-color: rgba(232,197,71,0.4); }
.format-card.selected { border-color: var(--accent); background: rgba(232,197,71,0.06); }
.format-ratio { font-family: 'Bebas Neue', sans-serif; font-size: 18px; letter-spacing: 1px; }
.format-name { font-size: 11px; color: var(--muted); margin-top: 2px; }

.cost-pill { display: inline-flex; align-items: center; gap: 6px; background: rgba(232,197,71,0.1); border: 1px solid rgba(232,197,71,0.3); border-radius: 20px; padding: 6px 14px; font-size: 13px; color: var(--accent); font-weight: 600; }

.generating { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 16px; padding: 40px; min-height: 300px; }
.spin { width: 40px; height: 40px; border: 3px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.tabs { display: flex; gap: 0; border-bottom: 1px solid var(--border); margin-bottom: 24px; overflow-x: auto; }
.tab { padding: 10px 20px; font-size: 14px; font-weight: 500; cursor: pointer; border-bottom: 2px solid transparent; color: var(--muted); margin-bottom: -1px; white-space: nowrap; }
.tab.active { color: var(--accent); border-bottom-color: var(--accent); }
.tab:hover:not(.active) { color: var(--text); }

.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.7); z-index: 200; display: flex; align-items: center; justify-content: center; padding: 20px; }
.modal { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; width: 100%; max-width: 480px; }
.modal-title { font-family: 'Bebas Neue', sans-serif; font-size: 24px; letter-spacing: 2px; margin-bottom: 8px; }

.toast { position: fixed; bottom: 24px; right: 24px; background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 14px 20px; z-index: 300; max-width: 400px; }
.toast.error { border-color: rgba(255,77,109,0.4); color: var(--accent2); }
.toast.success { border-color: rgba(74,222,128,0.4); color: var(--success); }

.actions-row { display: flex; gap: 10px; align-items: center; margin-top: 20px; flex-wrap: wrap; }
.export-bar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; gap: 12px; flex-wrap: wrap; }
.search-input { background: var(--surface2); border: 1px solid var(--border); color: var(--text); padding: 8px 14px; border-radius: 8px; font-size: 14px; width: 240px; }