@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@300;400;500;600;700&family=DM+Mono:wght@400;500&display=swap');

:root {
    --bg: #f5f7fa;
    --bg-card: #ffffff;
    --bg-hover: #f0f4ff;
    --border: #e2e8f0;
    --text: #1a202c;
    --text-muted: #718096;
    --accent: #3b72f6;
    --accent-glow: rgba(59, 114, 246, 0.08);
    --success: #059669;
    --warning: #d97706;
    --danger: #dc2626;
    --radius: 12px;
    --sidebar-width: 220px;
}

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

body {
    font-family: 'DM Sans', sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
}

/* SHELL */
.app-shell { display: flex; min-height: 100vh; }

/* SIDEBAR */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-card);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    padding: 24px 16px;
    position: fixed;
    height: 100vh;
    top: 0; left: 0;
    box-shadow: 2px 0 8px rgba(0,0,0,0.04);
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 8px 28px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 20px;
}

.brand-icon { font-size: 24px; }
.brand-name {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--text);
}

.nav-links { list-style: none; display: flex; flex-direction: column; gap: 4px; }

.nav-links a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 8px;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.15s;
    position: relative;
}

.nav-links a:hover { background: var(--bg-hover); color: var(--text); }
.nav-links a.active { background: var(--accent-glow); color: var(--accent); }
.nav-icon { font-size: 16px; }

.badge {
    margin-left: auto;
    background: var(--danger);
    color: white;
    font-size: 11px;
    font-weight: 600;
    padding: 2px 7px;
    border-radius: 20px;
}

/* MAIN */
.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 32px;
    border-bottom: 1px solid var(--border);
    background: var(--bg-card);
    position: sticky;
    top: 0;
    z-index: 10;
    box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}

.topbar-title { font-size: 16px; font-weight: 600; color: var(--text); }
.tenant-name {
    font-size: 13px;
    color: var(--text-muted);
    background: var(--bg);
    padding: 6px 14px;
    border-radius: 20px;
    border: 1px solid var(--border);
}

.page-body { padding: 32px; }

/* CARDS */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 24px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    transition: all 0.2s;
    box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}

.stat-card:hover {
    border-color: var(--accent);
    box-shadow: 0 4px 12px rgba(59,114,246,0.08);
    transform: translateY(-1px);
}

.stat-label {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-value { font-size: 32px; font-weight: 700; letter-spacing: -1px; color: var(--text); }
.stat-value.success { color: var(--success); }
.stat-value.warning { color: var(--warning); }
.stat-value.danger { color: var(--danger); }
.stat-value.accent { color: var(--accent); }

/* VOUCHER CARDS */
.voucher-list { display: flex; flex-direction: column; gap: 12px; }

.voucher-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 20px;
    display: grid;
    grid-template-columns: 56px 1fr auto;
    gap: 16px;
    align-items: center;
    transition: all 0.15s;
    cursor: pointer;
    box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}

.voucher-card:hover {
    border-color: var(--accent);
    box-shadow: 0 4px 12px rgba(59,114,246,0.08);
}

.voucher-thumb {
    width: 56px;
    height: 56px;
    border-radius: 8px;
    object-fit: cover;
    background: var(--bg);
    border: 1px solid var(--border);
}

.voucher-thumb-placeholder {
    width: 56px;
    height: 56px;
    border-radius: 8px;
    background: var(--bg);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.voucher-info { display: flex; flex-direction: column; gap: 4px; }
.voucher-customer { font-size: 14px; font-weight: 600; color: var(--text); }
.voucher-meta { font-size: 12px; color: var(--text-muted); font-family: 'DM Mono', monospace; }
.voucher-amount { font-size: 18px; font-weight: 700; font-family: 'DM Mono', monospace; color: var(--success); }

/* STATUS BADGES */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-pending { background: #fef3c7; color: var(--warning); }
.status-approved { background: #d1fae5; color: var(--success); }
.status-rejected { background: #fee2e2; color: var(--danger); }
.status-review { background: #dbeafe; color: var(--accent); }

/* BUTTONS */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    font-family: 'DM Sans', sans-serif;
    border: none;
    cursor: pointer;
    transition: all 0.15s;
}

.btn-approve { background: #d1fae5; color: var(--success); border: 1px solid #a7f3d0; }
.btn-approve:hover { background: #a7f3d0; }
.btn-reject { background: #fee2e2; color: var(--danger); border: 1px solid #fecaca; }
.btn-reject:hover { background: #fecaca; }
.btn-primary { background: var(--accent); color: white; }
.btn-primary:hover { background: #2563eb; }

/* CONFIDENCE BAR */
.confidence-bar {
    height: 6px;
    background: var(--border);
    border-radius: 3px;
    overflow: hidden;
}

.confidence-fill { height: 100%; border-radius: 3px; transition: width 0.3s; }
.confidence-high { background: var(--success); }
.confidence-mid { background: var(--warning); }
.confidence-low { background: var(--danger); }

/* SECTION TITLE */
.section-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 16px;
}

/* EMPTY STATE */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}
.empty-state .empty-icon { font-size: 48px; margin-bottom: 16px; }
.empty-state p { font-size: 14px; }

/* DATA FIELDS */
.data-field { display: flex; flex-direction: column; gap: 3px; }
.data-label {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 500;
}
.data-value { font-size: 14px; font-weight: 600; color: var(--text); }
.data-value.success { color: var(--success); }
.mono { font-family: 'DM Mono', monospace; }

/* TABLE */
.voucher-table { display: flex; flex-direction: column; gap: 0; }

.table-header {
    display: grid;
    grid-template-columns: 2fr 1.5fr 1.5fr 1fr 1fr 1.2fr;
    padding: 10px 20px;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border);
}

.table-row {
    display: grid;
    grid-template-columns: 2fr 1.5fr 1.5fr 1fr 1fr 1.2fr;
    padding: 14px 20px;
    border-bottom: 1px solid var(--border);
    background: var(--bg-card);
    align-items: center;
    transition: background 0.15s;
}

.table-row:first-of-type { border-radius: var(--radius) var(--radius) 0 0; }
.table-row:last-of-type { border-radius: 0 0 var(--radius) var(--radius); border-bottom: none; }
.table-row:hover { background: var(--bg-hover); }

/* FILTER BUTTONS */
.filter-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    font-family: 'DM Sans', sans-serif;
    border: 1px solid var(--border);
    background: var(--bg-card);
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.15s;
}

.filter-btn:hover { border-color: var(--accent); color: var(--text); }
.filter-btn.active { background: var(--accent-glow); border-color: var(--accent); color: var(--accent); font-weight: 600; }

.filter-count {
    background: var(--border);
    color: var(--text-muted);
    font-size: 11px;
    font-weight: 600;
    padding: 1px 7px;
    border-radius: 20px;
}

.filter-btn.active .filter-count { background: var(--accent); color: white; }

/* LOGIN */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg);
}

.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 40px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.06);
}

.form-group { margin-bottom: 16px; }
.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 6px;
}

.form-input {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    font-family: 'DM Sans', sans-serif;
    background: var(--bg);
    color: var(--text);
    transition: border-color 0.15s;
    outline: none;
}

.form-input:focus { border-color: var(--accent); }

.alert-error {
    background: #fee2e2;
    border: 1px solid #fecaca;
    color: var(--danger);
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 13px;
    margin-bottom: 16px;
}

.logout-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 10px 12px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    font-family: 'DM Sans', sans-serif;
    border: none;
    background: none;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.15s;
    text-align: left;
}

.logout-btn:hover {
    background: #fee2e2;
    color: var(--danger);
}

@media (max-width: 768px) {
    .sidebar {
        display: none; /* colapsado en mobile — ver nota abajo */
    }

    .main-content {
        margin-left: 0;
    }
}