/*
 * File locking: CSS doesn't write data; backend writes use flock() in lib/data_store.php.
 * Multi-tenant isolation: theming variables are injected per tenant via JS.
 * RBAC: admin/kitchen screens rely on backend role checks.
 * Audit logging: admin actions are logged server-side.
 * Theming: CSS variables drive terminal branding.
 * Throttling: terminal shows throttle errors from create_order API.
 * Heartbeat monitoring: terminal heartbeat indicator uses themed badges.
 * Secure file placement: assets live in public_html; data/config stay outside.
 */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;600&family=Source+Sans+3:wght@400;600&display=swap');

:root {
    --bg: #f4f1e9;
    --primary: #1f3a5f;
    --secondary: #d9a441;
    --accent: #be3a34;
    --surface: #ffffff;
    --text: #132035;
    --muted: #5d6b82;
    --radius: 18px;
    font-size: 16px;
}

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

body {
    font-family: 'Source Sans 3', sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
}

h1, h2, h3 {
    font-family: 'Playfair Display', serif;
}

.button {
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 999px;
    padding: 0.8rem 1.6rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.12);
}

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

.hidden {
    display: none !important;
}

.landing {
    background: radial-gradient(circle at top, #fef5e6, #e9e5dd);
}

.landing__wrapper {
    max-width: 1100px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.landing__hero {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    align-items: center;
}

.landing__card {
    background: var(--surface);
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}

.eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.15em;
    font-size: 0.75rem;
    margin-bottom: 0.8rem;
    color: var(--accent);
}

.lead {
    margin: 1rem 0 2rem;
    font-size: 1.1rem;
    color: var(--muted);
}

.landing__actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.terminal__app,
.kitchen__app,
.admin__app {
    padding: 2rem;
}

.terminal {
    background: linear-gradient(135deg, rgba(31, 58, 95, 0.08), rgba(217, 164, 65, 0.12));
}

.terminal__screen {
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.terminal__panel {
    background: var(--surface);
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    max-width: 520px;
    width: 100%;
    text-align: center;
}

.terminal__panel.wide {
    max-width: 800px;
    text-align: left;
}

.terminal__panel input,
.auth input,
.form-grid input,
.form-grid select,
.form-row input,
.form-row select,
.terminal__panel select,
textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    border-radius: 12px;
    border: 1px solid #d8d8d8;
    margin: 0.6rem 0;
    font-size: 1rem;
}

.terminal__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    background: var(--surface);
    padding: 1rem 1.5rem;
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
    width: 100%;
}

.terminal__meta {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.terminal__flow {
    margin: 1rem 0;
    background: rgba(31, 58, 95, 0.08);
    border-left: 4px solid var(--accent);
    padding: 0.8rem 1.2rem;
    border-radius: 12px;
    font-weight: 600;
    color: var(--primary);
}

.terminal__brand {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.terminal__brand img {
    width: 60px;
    height: 60px;
    object-fit: contain;
}

.terminal__content {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 1.5rem;
}

#menu-screen {
    align-items: stretch;
    justify-content: flex-start;
    padding: 2rem 0;
    flex-direction: column;
    width: 100%;
    gap: 1.5rem;
}

#menu-screen > * {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.terminal__categories {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.category-pill {
    background: var(--surface);
    padding: 0.8rem 1rem;
    border-radius: 999px;
    border: 1px solid transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.category-pill img,
.category-card img {
    border-radius: 10px;
    object-fit: cover;
}

.category-card {
    background: var(--surface);
    border-radius: 18px;
    padding: 1rem;
    display: grid;
    gap: 0.6rem;
    align-items: center;
    border: 1px solid transparent;
    cursor: pointer;
    text-align: left;
}

.category-media {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 12px;
    background: rgba(31, 58, 95, 0.08);
}

.category-title {
    font-weight: 600;
}

.category-pill.active,
.category-card.active {
    border-color: var(--primary);
    box-shadow: inset 0 0 0 1px var(--primary);
}

.terminal__items {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1.2rem;
}

.menu-card {
    background: var(--surface);
    padding: 1rem;
    border-radius: var(--radius);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
    display: grid;
    gap: 0.8rem;
}

.menu-card__media {
    width: 100%;
    height: 120px;
    border-radius: 12px;
    overflow: hidden;
    background: rgba(31, 58, 95, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
}

.menu-card__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.menu-card__placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(31, 58, 95, 0.15), rgba(217, 164, 65, 0.2));
}

.menu-card__content h3 {
    margin-bottom: 0.4rem;
}

.menu-card--list {
    grid-template-columns: 120px 1fr auto;
    align-items: center;
}

.menu-card--list .menu-card__media {
    height: 80px;
}

.menu-card--list .menu-card__content {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.menu-card--showcase {
    grid-template-columns: 1.2fr 1fr auto;
    align-items: center;
    padding: 1.5rem;
    background: linear-gradient(135deg, rgba(31, 58, 95, 0.08), rgba(217, 164, 65, 0.12));
}

.menu-card--showcase .menu-card__media {
    height: 180px;
}

.menu-card--showcase .menu-card__content h3 {
    font-size: 1.4rem;
}

.layout-menu-list .terminal__items {
    grid-template-columns: 1fr;
}

.layout-menu-showcase .terminal__items {
    grid-template-columns: 1fr;
}

.layout-categories-tabs .terminal__content {
    display: flex;
    flex-direction: column;
}

.layout-categories-tabs .terminal__categories {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 1rem;
}

.layout-categories-tiles .terminal__content {
    grid-template-columns: 260px 1fr;
}

.layout-categories-tiles .terminal__categories {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 0.8rem;
}

.terminal__summary {
    margin-top: 1.5rem;
    border-top: 1px solid #eee;
    padding-top: 1rem;
    display: grid;
    gap: 0.4rem;
}

.terminal__summary .total {
    font-size: 1.2rem;
}

.terminal__actions {
    display: flex;
    justify-content: space-between;
    margin-top: 1.5rem;
}

.terminal__screensaver {
    position: fixed;
    inset: 0;
    background: #000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.terminal__screensaver img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.9;
    transition: opacity 0.5s ease;
}

.terminal__screensaver.transition-fade img {
    transition: opacity 0.5s ease;
}

.terminal__screensaver.transition-slide img {
    transition: transform 0.5s ease, opacity 0.5s ease;
}

.terminal__screensaver.transition-none img {
    transition: none;
}

.terminal__screensaver video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.screensaver__overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 2rem;
    font-family: 'Playfair Display', serif;
    background: rgba(0, 0, 0, 0.25);
}

.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: #fff;
    padding: 0.75rem 1.5rem;
    border-radius: 2rem;
    font-size: 0.9rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 1000;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.toast.hidden {
    opacity: 0;
    transform: translateX(-50%) translateY(1rem);
    pointer-events: none;
}

.cart-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    width: 10px;
    height: 10px;
    background: var(--accent);
    border-radius: 50%;
    border: 2px solid var(--bg);
}

.cart-badge.hidden {
    display: none;
}

.image-preview {
    margin-top: 0.5rem;
    max-width: 100px;
    max-height: 100px;
    overflow: hidden;
    border-radius: 4px;
}

.image-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.color-input-group {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.color-input-group input[type="text"] {
    flex: 1;
}

.color-input-group input[type="color"] {
    width: 40px;
    height: 40px;
    padding: 0;
    border: none;
    cursor: pointer;
    border-radius: 4px;
}

.modifier-popup {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.modifier-popup.hidden {
    display: none;
}

.modifier-popup__content {
    background: var(--surface);
    border-radius: var(--radius);
    max-width: 500px;
    width: 90%;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.modifier-popup__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.modifier-popup__header h2 {
    margin: 0;
    font-size: 1.25rem;
}

.modifier-popup__groups {
    padding: 1.5rem;
    overflow-y: auto;
    flex: 1;
}

.modifier-group {
    margin-bottom: 1.5rem;
}

.modifier-group:last-child {
    margin-bottom: 0;
}

.modifier-group__title {
    font-weight: 600;
    margin-bottom: 0.75rem;
    display: flex;
    justify-content: space-between;
}

.modifier-group__required {
    color: var(--accent);
    font-size: 0.8rem;
}

.modifier-option {
    display: flex;
    align-items: center;
    padding: 0.75rem;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    margin-bottom: 0.5rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.modifier-option:hover {
    background: rgba(0, 0, 0, 0.05);
}

.modifier-option.selected {
    border-color: var(--primary);
    background: rgba(31, 58, 95, 0.1);
}

.modifier-option__radio,
.modifier-option__checkbox {
    margin-right: 0.75rem;
}

.modifier-option__info {
    flex: 1;
}

.modifier-option__name {
    font-weight: 500;
}

.modifier-option__price {
    color: var(--accent);
    font-weight: 600;
}

.modifier-option__image {
    width: 40px;
    height: 40px;
    border-radius: 4px;
    object-fit: cover;
    margin-left: 0.75rem;
}

.modifier-popup__footer {
    padding: 1.5rem;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modifier-popup__total {
    font-size: 1.1rem;
}

.modifier-popup__total strong {
    margin-left: 0.5rem;
}

.kitchen__orders {
    display: grid;
    gap: 1rem;
    margin-top: 1.5rem;
}

.order-card {
    background: var(--surface);
    padding: 1rem;
    border-radius: var(--radius);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
}

.order-card header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.8rem;
}

.order-status {
    padding: 0.3rem 0.8rem;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
}

.order-status.pending {
    background: #fff3cd;
    color: #856404;
}

.order-status.in_progress {
    background: #cce5ff;
    color: #004085;
}

.order-status.ready {
    background: #d4edda;
    color: #155724;
}

.order-items {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.order-item {
    background: var(--bg);
    padding: 0.8rem;
    border-radius: 12px;
    border-left: 4px solid var(--muted);
}

.order-item.in-progress {
    border-left-color: var(--secondary);
}

.order-item.ready {
    border-left-color: #28a745;
}

.item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.item-status {
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    background: var(--surface);
}

.item-progress {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 0.5rem;
}

.progress-bar {
    flex: 1;
    height: 8px;
    background: var(--surface);
    border-radius: 999px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--secondary);
    border-radius: 999px;
    transition: width 0.3s ease;
}

.progress-text {
    font-size: 0.8rem;
    color: var(--muted);
    min-width: 80px;
}

.button.small {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

.link-code-section {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--muted);
}

.link-code-section h4 {
    margin-bottom: 0.5rem;
}

.link-code-section p {
    color: var(--muted);
    margin-bottom: 1rem;
}

.link-code-display {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--bg);
    border-radius: var(--radius);
}

.code-box {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.code-box span {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: 0.3em;
    font-family: monospace;
}

.code-expiry {
    color: var(--muted);
    font-size: 0.9rem;
}

.category-checkboxes {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin-top: 0.5rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    cursor: pointer;
    padding: 0.4rem 0.8rem;
    background: var(--bg);
    border-radius: 8px;
    transition: background 0.2s ease;
}

.checkbox-label:hover {
    background: var(--muted);
    color: var(--surface);
}

.checkbox-label input {
    cursor: pointer;
}

.admin__grid {
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    margin-top: 1.5rem;
}

.admin__shell {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 2rem;
    min-height: 90vh;
}

.admin__nav {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.08);
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    position: sticky;
    top: 1.5rem;
    height: fit-content;
}

.admin__nav-header h1 {
    margin-bottom: 0.4rem;
}

.admin__nav-header p {
    color: var(--muted);
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.admin__nav-links {
    display: grid;
    gap: 0.6rem;
}

.nav-item {
    border: 1px solid #e5e5e5;
    background: #fff;
    padding: 0.7rem 1rem;
    border-radius: 14px;
    text-align: left;
    cursor: pointer;
    font-weight: 600;
    color: var(--primary);
}

.nav-item.active {
    border-color: var(--primary);
    box-shadow: inset 0 0 0 1px var(--primary);
}

.admin__main {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.admin-section {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.08);
}

.section-header {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    margin-bottom: 1.5rem;
}

.section-header p {
    color: var(--muted);
}

.section-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.editor-block {
    margin-bottom: 1.5rem;
}

.editor-list {
    display: grid;
    gap: 1rem;
    margin-bottom: 1rem;
}

.editor-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
}

.advanced-panel {
    margin-top: 1rem;
}

.toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--muted);
}

.field {
    display: flex;
    flex-direction: column;
}

.field.inline {
    max-width: 160px;
}

.field label {
    font-size: 0.85rem;
    color: var(--muted);
    margin-bottom: 0.3rem;
}

.editor-row {
    background: rgba(244, 241, 233, 0.6);
    border-radius: 16px;
    padding: 1rem;
    display: grid;
    gap: 1rem;
}

.editor-row--stack {
    gap: 1.2rem;
}

.editor-row__header {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 1rem;
    align-items: end;
}

.editor-row__body {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.editor-row--inline {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    align-items: end;
}

.nested-list {
    display: grid;
    gap: 0.8rem;
    margin-bottom: 0.8rem;
}

.multi-select {
    min-height: 120px;
}

.checkbox-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 0.5rem;
}

.checkbox-pill {
    background: #fff;
    border-radius: 999px;
    padding: 0.4rem 0.8rem;
    border: 1px solid #e0e0e0;
    font-size: 0.85rem;
    display: flex;
    gap: 0.4rem;
    align-items: center;
}

.flow-block {
    background: rgba(244, 241, 233, 0.6);
    border-radius: 16px;
    padding: 1rem;
    display: grid;
    gap: 1rem;
}

.flow-header p {
    color: var(--muted);
}

.flow-list {
    display: grid;
    gap: 0.8rem;
}

.flow-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    align-items: end;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 0.8rem;
}

.stat-card {
    background: rgba(244, 241, 233, 0.6);
    border-radius: 14px;
    padding: 0.8rem;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.audit-list {
    display: grid;
    gap: 0.6rem;
}

.audit-row {
    display: flex;
    justify-content: space-between;
    color: var(--muted);
    font-size: 0.85rem;
}

.list-row {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    border-bottom: 1px solid #eee;
}

.empty-state {
    color: var(--muted);
    font-size: 0.9rem;
}

.button.small {
    padding: 0.4rem 0.9rem;
    font-size: 0.85rem;
}

.button.danger {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

.card {
    background: var(--surface);
    padding: 1.5rem;
    border-radius: var(--radius);
    box-shadow: 0 14px 30px rgba(0, 0, 0, 0.08);
}

.form-grid {
    display: grid;
    gap: 0.8rem;
}

.form-row {
    display: flex;
    gap: 0.8rem;
    flex-wrap: wrap;
}

.pill {
    background: var(--secondary);
    color: #fff;
    padding: 0.3rem 0.8rem;
    border-radius: 999px;
    font-size: 0.8rem;
}

.auth {
    max-width: 400px;
    margin: 10vh auto;
    background: var(--surface);
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}

.terminal__error {
    color: var(--accent);
    margin-top: 0.6rem;
}

.terminal__panel input[type="text"] {
    font-size: 1.2rem;
    padding: 1rem;
    text-align: center;
    letter-spacing: 0.2em;
    font-weight: 600;
}

.terminal__panel input#link-code-input {
    font-size: 2rem;
    letter-spacing: 0.5em;
    font-family: monospace;
}

.terminal__countdown {
    color: var(--muted);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.terminal__panel button {
    font-size: 1.1rem;
    padding: 1rem 2rem;
    margin-top: 1rem;
}

@media (max-width: 900px) {
    .terminal__content {
        grid-template-columns: 1fr;
    }

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

    .admin__nav {
        position: relative;
    }
}