:root {
    color-scheme: dark;
    --bg: #07111f;
    --panel: #111c2f;
    --panel-2: #16253b;
    --border: rgba(255, 255, 255, 0.08);
    --text: #f5f7fb;
    --muted: #95a3b8;
    --accent: #f97316;
    --accent-2: #fb923c;
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --shadow: 0 20px 50px rgba(0, 0, 0, 0.25);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Inter, Segoe UI, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    overflow-x: hidden;
}

button,
input,
select,
textarea {
    font: inherit;
}

button {
    cursor: pointer;
}

.tab-switcher {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 14px;
}

.tab-btn {
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.04);
    color: var(--text);
    border-radius: 999px;
    padding: 8px 12px;
}

.tab-btn.active {
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: white;
    border-color: transparent;
}

.action-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 8px;
}

.auth-screen {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
    background: radial-gradient(circle at top, #13213d 0%, var(--bg) 100%);
}

.auth-card {
    width: min(100%, 420px);
    background: rgba(17, 28, 47, 0.95);
    border: 1px solid var(--border);
    border-radius: 24px;
    box-shadow: var(--shadow);
    padding: 24px;
}

.auth-brand {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 20px;
}

.brand-mark {
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    font-weight: 800;
}

.auth-form,
.form-grid,
.chat-form {
    display: grid;
    gap: 12px;
}

.auth-form.hidden {
    display: none;
}

.auth-message {
    margin-top: 12px;
    color: #fcd7b0;
    min-height: 22px;
}

label {
    display: grid;
    gap: 6px;
    color: var(--muted);
    font-size: 0.95rem;
    align-items: start;
}

label input[type="checkbox"],
label input[type="radio"] {
    width: 16px;
    height: 16px;
    margin: 0;
    accent-color: var(--accent);
}

label:has(input[type="checkbox"]),
label:has(input[type="radio"]) {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.03);
}

input,
select,
textarea {
    border: 1px solid var(--border);
    background: var(--panel-2);
    color: var(--text);
    border-radius: 12px;
    padding: 10px 12px;
}

textarea {
    min-height: 92px;
    resize: vertical;
}

.primary-btn,
.secondary-btn,
.ghost-btn,
.danger-btn {
    border: 0;
    border-radius: 999px;
    padding: 10px 14px;
    transition: transform 0.16s ease, box-shadow 0.16s ease, background 0.16s ease;
}

.ghost-btn.is-active,
.primary-btn.is-active {
    background: rgba(34, 197, 94, 0.18);
    color: #bbf7d0;
    border-color: rgba(34, 197, 94, 0.35);
}

.primary-btn:active,
.secondary-btn:active,
.ghost-btn:active,
.danger-btn:active {
    transform: scale(0.98);
}

.primary-btn {
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: white;
}

.secondary-btn {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text);
}

.ghost-btn {
    background: transparent;
    color: var(--muted);
    border: 1px solid var(--border);
}

.danger-btn {
    background: rgba(239, 68, 68, 0.16);
    color: #fecaca;
    border: 1px solid rgba(239, 68, 68, 0.24);
}

.ghost-btn.active,
.ghost-btn:hover,
.secondary-btn:hover {
    background: rgba(255, 255, 255, 0.12);
}

.app-shell {
    display: flex;
    min-height: 100vh;
    width: 100%;
    min-width: 0;
}

.sidebar {
    width: 270px;
    background: rgba(7, 17, 31, 0.94);
    border-right: 1px solid var(--border);
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0;
    overflow: hidden;
    box-sizing: border-box;
}

@media (min-width: 768px) {
    .app-shell {
        display: flex;
        flex-direction: row;
        width: 100%;
        min-width: 0;
        align-items: stretch;
    }

    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        align-self: flex-start;
        width: 270px;
        flex-shrink: 0;
        height: 100vh;
        height: 100dvh;
        max-height: 100vh;
        max-height: 100dvh;
        z-index: 1000;
        display: flex;
        flex-direction: column;
        box-sizing: border-box;
    }

    .nav-links {
        flex: 1 1 auto;
        min-height: 0;
        overflow-y: auto;
        overflow-x: hidden;
        padding-right: 4px;
        display: flex;
        flex-direction: column;
        gap: 6px;
    }

    .main-panel {
        margin-left: 270px;
        flex: 1;
        min-width: 0;
        width: 100%;
        max-width: none;
    }

    .content {
        flex: 1;
        min-width: 0;
        width: 100%;
        max-width: none;
    }
}

.sidebar-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 24px 20px;
    flex-shrink: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent);
}

.nav-links {
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex: 1 1 auto;
    min-height: 0;
    overflow-y: auto;
    overflow-x: hidden;
    padding-right: 4px;
    padding-bottom: 8px;
}

.nav-item {
    border: 0;
    text-align: left;
    padding: 10px 12px;
    border-radius: 12px;
    background: transparent;
    color: var(--muted);
}

.nav-item.active {
    background: rgba(249, 115, 22, 0.18);
    color: white;
}

.sidebar-footer {
    margin-top: 0;
    flex-shrink: 0;
    padding: 16px 18px 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    background: rgba(7, 17, 31, 0.96);
}

.main-panel {
    flex: 1;
    min-width: 0;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    overflow-x: hidden;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 14px;
    margin-bottom: 12px;
    padding: 18px 20px;
    background: rgba(17, 28, 47, 0.94);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 22px;
    box-shadow: 0 20px 45px rgba(0, 0, 0, 0.26);
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.toolbar input[type="search"],
input[type="search"] {
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text);
    padding: 14px 16px;
    border-radius: 999px;
    outline: none;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.toolbar input[type="search"]:focus,
input[type="search"]:focus {
    border-color: rgba(249, 115, 22, 0.9);
    box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.12);
}

.user-badge {
    background: rgba(255, 255, 255, 0.08);
    padding: 10px 14px;
    border-radius: 999px;
    color: var(--muted);
}

.section-panel {
    display: none;
}

.section-panel.active {
    display: block;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
}

.panel-card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 16px;
    box-shadow: var(--shadow);
}

.content-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    margin-top: 16px;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin-top: 12px;
}

.stat-card {
    background: linear-gradient(135deg, rgba(249, 115, 22, 0.18), rgba(17, 28, 47, 0.95));
}

.stat-card h4 {
    font-size: 0.92rem;
    color: var(--muted);
    margin: 0 0 8px;
}

.stat-card .value {
    font-size: 1.35rem;
    font-weight: 700;
}

.panel-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}

.toolbar,
.bulk-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.list-stack {
    display: grid;
    gap: 10px;
}

.list-item,
.menu-item-card,
.review-card,
.coupon-card,
.promotion-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 12px;
    min-width: 0;
    overflow-wrap: anywhere;
    word-break: break-word;
}

.menu-item-card img {
    width: 100%;
    height: 120px;
    object-fit: cover;
    border-radius: 12px;
    margin-bottom: 8px;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 8px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    color: var(--muted);
    font-size: 0.8rem;
}

.table-row {
    display: grid;
    grid-template-columns: 36px 1fr 90px 120px 120px;
    gap: 12px;
    align-items: center;
}

.table-row .muted {
    color: var(--muted);
    font-size: 0.9rem;
}

.form-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.form-grid .full {
    grid-column: 1 / -1;
}

.chat-log {
    min-height: 250px;
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 12px;
    display: grid;
    gap: 8px;
    background: rgba(255, 255, 255, 0.03);
}

.message {
    padding: 8px 10px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.06);
}

.message.self {
    background: rgba(249, 115, 22, 0.18);
}

.approval-banner {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    justify-content: space-between;
    padding: 12px 14px;
    border-radius: 14px;
    border: 1px solid rgba(249, 115, 22, 0.28);
    background: rgba(249, 115, 22, 0.12);
    color: #ffedd5;
    margin-bottom: 12px;
}

.nav-item:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.toast-root {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: grid;
    gap: 10px;
    z-index: 1000;
}

.toast {
    padding: 12px 14px;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: rgba(17, 28, 47, 0.95);
    color: white;
}

.toast.success {
    border-color: rgba(34, 197, 94, 0.36);
}

.toast.error {
    border-color: rgba(239, 68, 68, 0.36);
}

.hidden {
    display: none !important;
}

.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.72);
    display: grid;
    place-items: center;
    padding: 16px;
    z-index: 2147483647;
}

.modal-card {
    width: min(100%, 720px);
    max-height: calc(100vh - 40px);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 16px;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
    position: relative;
    z-index: 1;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-body {
    margin-top: 10px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    flex: 1 1 auto;
    overflow-y: auto;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin-top: 12px;
    padding-top: 8px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    flex-wrap: wrap;
}

.modal-actions.full {
    justify-content: flex-end;
}

@media (max-width: 780px) {
    .modal-backdrop {
        align-items: flex-start;
        padding: 12px;
        padding-bottom: calc(12px + env(safe-area-inset-bottom));
    }

    .modal-card {
        max-height: min(88vh, calc(100dvh - 24px));
        width: min(100%, 720px);
        margin-top: max(8px, env(safe-area-inset-top));
    }

    .modal-body {
        padding-bottom: 4px;
    }

    .modal-actions {
        position: sticky;
        bottom: 0;
        background: var(--panel);
        padding: 10px 0 0;
        margin-top: 8px;
        z-index: 2;
    }
}

.chart {
    display: grid;
    gap: 8px;
}

.chart-bar {
    height: 16px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
}

.empty-state {
    color: var(--muted);
    padding: 12px 0;
}

@media (max-width: 980px) {
    .stats-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .content-grid,
    .card-grid {
        grid-template-columns: 1fr;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 740px) {
    body {
        padding-bottom: 96px;
    }

    .app-shell {
        flex-direction: column;
        min-height: 100dvh;
    }

    .sidebar {
        display: block;
        position: fixed;
        left: 0;
        top: 0;
        bottom: 0;
        z-index: 1400;
        width: min(320px, 84vw);
        transform: translateX(-102%);
        transition: transform var(--transition-medium);
        border-radius: 0 22px 22px 0;
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .mobile-only {
        display: inline-flex;
    }

    .main-panel {
        padding: 16px 16px calc(16px + 88px);
        width: 100%;
        min-width: 0;
    }

    .topbar {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
        width: 100%;
        box-sizing: border-box;
    }

    .topbar-start {
        display: flex;
        align-items: center;
        gap: 10px;
        width: 100%;
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
        padding: 16px;
    }

    .panel-card,
    .list-item,
    .review-card,
    .promotion-card,
    .coupon-card {
        overflow-wrap: anywhere;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .table-row {
        grid-template-columns: 1fr;
    }

    .mobile-bottom-nav {
        display: flex;
    }
}