:root {
    --bg-color: #f4f5f7;
    --panel-bg: #ffffff;
    --border-color: #d1d5db;
    --border-subtle: #e5e7eb;
    --text-color: #1f2937;
    --text-muted: #4b5563;
    --text-faint: #6b7280;
    --text-secondary: #374151;
    --text-disabled: #9ca3af;
    --heading-color: #111827;
    --hover-bg: #f3f4f6;
    --subtle-bg: #f9fafb;
    --accent: #1d4ed8;
    --accent-hover: #1e3a8a;
    --accent-bg: #eff6ff;
    --accent-border: #bfdbfe;
    --success: #15803d;
    --success-bg: #f0fdf4;
    --success-border: #86efac;
    --danger: #b91c1c;
    --danger-bg: #fef2f2;
    --danger-border: #fca5a5;
    --warning: #b45309;
    --warning-bg: #fff7ed;
    --overlay-bg: rgba(255, 255, 255, 0.8);
    --font-family: Arial, Helvetica, sans-serif;
}

:root[data-theme="dark"] {
    --bg-color: #0e1014;
    --panel-bg: #181b21;
    --border-color: #2c313a;
    --border-subtle: #333944;
    --text-color: #e5e7eb;
    --text-muted: #9aa3af;
    --text-faint: #7b8794;
    --text-secondary: #c2c9d1;
    --text-disabled: #5b6472;
    --heading-color: #f3f4f6;
    --hover-bg: #232830;
    --subtle-bg: #1e222a;
    --accent: #3b82f6;
    --accent-hover: #60a5fa;
    --accent-bg: rgba(59, 130, 246, 0.16);
    --accent-border: rgba(59, 130, 246, 0.4);
    --success: #4ade80;
    --success-bg: rgba(74, 222, 128, 0.12);
    --success-border: rgba(74, 222, 128, 0.35);
    --danger: #f87171;
    --danger-bg: rgba(248, 113, 113, 0.12);
    --danger-border: rgba(248, 113, 113, 0.35);
    --warning: #fbbf24;
    --warning-bg: rgba(251, 191, 36, 0.14);
    --overlay-bg: rgba(14, 16, 20, 0.8);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: var(--font-family);
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-size: 12px;
    line-height: 1.4;
}

.app-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 10px;
}

.btn-primary, .btn-secondary {
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.15s;
}

.btn-primary {
    background: var(--accent);
    color: white;
}

.btn-primary:hover {
    background: var(--accent-hover);
}

.btn-secondary {
    background: var(--hover-bg);
    color: var(--text-color);
    border-color: var(--border-color);
}

.btn-secondary:hover {
    background: var(--border-subtle);
}

.val-positive { color: var(--success) !important; }
.val-negative { color: var(--danger) !important; }

.loader-wrapper {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--overlay-bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 20;
}

.spinner {
    width: 24px;
    height: 24px;
    border: 2px solid var(--border-subtle);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 10px;
}

@keyframes spin { 100% { transform: rotate(360deg); } }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }

/* ============================================================
   Shared Corporate components
   Single source of truth for page chrome reused across
   auth, account, admin and the landing page. All values
   derive from the :root tokens above — no per-page palettes.
   ============================================================ */

/* Page wrappers */
.page { max-width: 1000px; margin: 30px auto; padding: 0 20px; }
.page-narrow { max-width: 520px; margin: 40px auto; padding: 0 20px; }
.page-medium { max-width: 760px; margin: 40px auto; padding: 0 20px; }

.page-title { font-size: 22px; font-weight: 700; color: var(--text-color); margin-bottom: 6px; }
.page-subtitle { font-size: 14px; color: var(--text-muted); margin-bottom: 28px; }
.section-label { font-size: 11px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); margin-bottom: 10px; }

/* Cards */
.card {
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
    margin-bottom: 20px;
}
.card-padded { padding: 24px; }
.card-header {
    padding: 14px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex; align-items: center; justify-content: space-between;
}
.card-header h2 { font-size: 14px; font-weight: 700; color: var(--text-color); }
.card-title { font-size: 16px; font-weight: 700; margin-bottom: 18px; color: var(--text-color); }

/* Forms */
.form-label { display: block; font-size: 12px; font-weight: 600; color: var(--text-color); margin-bottom: 6px; }
.form-input {
    width: 100%;
    padding: 9px 12px;
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    font-size: 13px;
    margin-bottom: 16px;
    outline: none;
    transition: border-color 0.15s;
}
.form-input:focus { border-color: var(--accent); }
.form-hint { font-size: 11px; color: var(--text-muted); margin-top: -10px; margin-bottom: 16px; }

/* Alerts */
.alert { padding: 10px 14px; font-size: 13px; margin-bottom: 16px; border: 1px solid transparent; }
.alert-error { background: var(--danger-bg); border-color: var(--danger-border); color: var(--danger); }
.alert-success { background: var(--success-bg); border-color: var(--success-border); color: var(--success); }
.alert-info { background: var(--accent-bg); border-color: var(--accent-border); color: var(--accent); }
.alert-dev { background: var(--subtle-bg); border: 1px dashed var(--border-color); color: var(--text-muted); font-size: 12px; word-break: break-all; }
.alert-dev a { color: var(--accent); }

/* Buttons (full width + small) */
.btn-block { width: 100%; display: block; }
.btn-sm { padding: 5px 12px; font-size: 12px; font-weight: 600; border: 1px solid transparent; cursor: pointer; text-decoration: none; display: inline-block; }

/* Auth (centered focused card on corporate background) */
.auth-wrapper { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; }
.auth-card { background: var(--panel-bg); border: 1px solid var(--border-color); box-shadow: 0 1px 3px rgba(0,0,0,0.08); padding: 36px; width: 100%; max-width: 420px; }
.auth-logo { font-size: 20px; font-weight: 700; color: var(--heading-color); margin-bottom: 24px; text-align: center; }
.auth-logo .highlight { color: var(--accent); }
.auth-footer { text-align: center; margin-top: 20px; font-size: 13px; color: var(--text-muted); }
.auth-footer a { color: var(--accent); text-decoration: none; }
.auth-footer a:hover { text-decoration: underline; }
.auth-remember { display: flex; align-items: center; gap: 8px; margin-bottom: 18px; font-size: 13px; color: var(--text-muted); }

/* Data table (admin, lists) */
.data-table { width: 100%; border-collapse: collapse; }
.data-table th {
    text-align: left; font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em;
    color: var(--text-muted); padding: 10px 24px; border-bottom: 1px solid var(--border-color); background: var(--subtle-bg);
}
.data-table td { padding: 12px 24px; font-size: 13px; border-bottom: 1px solid var(--border-color); color: var(--text-color); }
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--subtle-bg); }

/* Stat cards */
.stats-row { display: flex; gap: 16px; margin-bottom: 28px; flex-wrap: wrap; }
.stat-card { background: var(--panel-bg); border: 1px solid var(--border-color); box-shadow: 0 1px 2px rgba(0,0,0,0.05); padding: 18px 26px; flex: 1; min-width: 140px; }
.stat-card .num { font-size: 26px; font-weight: 800; color: var(--accent); }
.stat-card .label { font-size: 13px; color: var(--text-muted); margin-top: 4px; }

/* Badges */
.badge { display: inline-block; font-size: 11px; font-weight: 700; padding: 2px 10px; border: 1px solid transparent; }
.badge-accent { background: var(--accent-bg); color: var(--accent); border-color: var(--accent-border); }
.badge-muted { background: var(--hover-bg); color: var(--text-muted); border-color: var(--border-color); }
.empty-state { text-align: center; padding: 36px; color: var(--text-muted); font-size: 14px; }

/* Site footer */
.site-footer {
    border-top: 1px solid var(--border-color);
    background: var(--panel-bg);
    margin-top: 24px;
}

.site-footer__inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 24px 20px;
    text-align: center;
}

.site-footer__brand {
    font-size: 16px;
    font-weight: 700;
    color: var(--heading-color);
    margin-bottom: 10px;
}

.site-footer__brand .highlight { color: var(--accent); }

.site-footer__links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px 18px;
    margin-bottom: 12px;
}

.site-footer__links a {
    font-size: 12px;
    color: var(--text-muted);
    text-decoration: none;
}

.site-footer__links a:hover { color: var(--accent); }

.site-footer__disclaimer {
    font-size: 11px;
    color: var(--text-muted);
    max-width: 640px;
    margin: 0 auto 10px;
    line-height: 1.5;
}

.site-footer__meta {
    font-size: 11px;
    color: var(--text-muted);
}

.site-footer__legal {
    display: flex;
    justify-content: center;
    gap: 14px;
    margin-bottom: 8px;
}

.site-footer__legal a {
    font-size: 11px;
    color: var(--text-muted);
    text-decoration: underline;
}

.site-footer__legal a:hover { color: var(--accent); }

/* Embedded views (workspace tabs) provide their own chrome — hide the footer. */
body.embedded .site-footer { display: none; }