/* ==========================================================================
   Blue Bengal Carshalton — shared design system
   Warm elegant Indian restaurant theme: deep maroon + gold on cream.
   Used by index.html, booking.html and thank-you.html.
   ========================================================================== */

:root {
    --maroon: #7a1f30;
    --maroon-dark: #56111f;
    --maroon-tint: rgba(122, 31, 48, 0.55);
    --gold: #c9a227;
    --gold-light: #e6c866;
    --cream: #fdf8f0;
    --cream-alt: #f6ead9;
    --text: #2b1810;
    --text-muted: #6b5a4e;
    --shadow: 0 10px 30px rgba(43, 24, 16, 0.12);
    --radius: 14px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: "Lato", "Segoe UI", sans-serif;
    color: var(--text);
    background: var(--cream);
    line-height: 1.6;
}

h1, h2, h3, h4 {
    font-family: "Playfair Display", "Georgia", serif;
    margin: 0 0 0.5em;
    color: var(--maroon-dark);
}

a {
    text-decoration: none;
    color: inherit;
}

img {
    max-width: 100%;
    display: block;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 72px 0;
}

.section-alt {
    background: var(--cream-alt);
}

.section-title {
    text-align: center;
    font-size: 2.1rem;
    margin-bottom: 0.3em;
}

.section-subtitle {
    text-align: center;
    color: var(--text-muted);
    font-size: 1.05rem;
    max-width: 640px;
    margin: 0 auto 2.5rem;
}

.eyebrow {
    display: inline-block;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--gold);
    margin-bottom: 0.6em;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 13px 30px;
    border-radius: 999px;
    font-weight: 700;
    font-family: "Lato", sans-serif;
    letter-spacing: 0.02em;
    border: 2px solid transparent;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.btn-gold {
    background: var(--gold);
    color: var(--maroon-dark);
}

.btn-gold:hover {
    background: var(--gold-light);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(201, 162, 39, 0.35);
}

.btn-outline {
    background: transparent;
    color: #fff;
    border-color: rgba(255, 255, 255, 0.7);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.12);
    transform: translateY(-2px);
}

.btn-block {
    display: block;
    width: 100%;
    text-align: center;
    border: none;
}

/* Site header / nav */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--cream);
    box-shadow: 0 2px 12px rgba(43, 24, 16, 0.08);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 24px;
    max-width: 1100px;
    margin: 0 auto;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-brand img {
    width: 44px;
    height: 44px;
    object-fit: cover;
    border-radius: 50%;
    border: 2px solid var(--gold);
}

.nav-brand span {
    font-family: "Playfair Display", serif;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--maroon-dark);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-links a:not(.btn) {
    font-weight: 600;
    color: var(--text);
    position: relative;
    padding: 4px 0;
}

.nav-links a:not(.btn):hover {
    color: var(--maroon);
}

.nav-toggle {
    display: none;
}

@media (max-width: 780px) {
    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--cream);
        flex-direction: column;
        align-items: flex-start;
        padding: 18px 24px 26px;
        gap: 16px;
        box-shadow: 0 12px 20px rgba(43, 24, 16, 0.1);
        display: none;
    }

    .nav-links.open {
        display: flex;
    }

    .nav-toggle {
        display: block;
        background: none;
        border: none;
        font-size: 1.6rem;
        color: var(--maroon-dark);
        cursor: pointer;
    }
}

/* Hero */
.hero {
    position: relative;
    min-height: 88vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    color: #fff;
}

.hero-small {
    min-height: 46vh;
}

.hero img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(86, 17, 31, 0.55), rgba(43, 24, 16, 0.75));
}

.hero-content {
    position: relative;
    z-index: 2;
    padding: 24px;
    max-width: 720px;
}

.hero-content h1 {
    color: #fff;
    font-size: 3rem;
    margin-bottom: 0.4em;
}

.hero-content p {
    font-size: 1.15rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 1.8em;
}

.hero-actions {
    display: flex;
    gap: 18px;
    justify-content: center;
    flex-wrap: wrap;
}

@media (max-width: 640px) {
    .hero-content h1 {
        font-size: 2.1rem;
    }
}

/* Opening hours */
.hours-table {
    width: 100%;
    max-width: 560px;
    margin: 0 auto;
    border-collapse: collapse;
    background: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.hours-table th {
    background: var(--maroon);
    color: #fff;
    padding: 14px;
    font-weight: 600;
    text-align: left;
}

.hours-table td {
    padding: 13px 16px;
    border-bottom: 1px solid var(--cream-alt);
}

.hours-table tr:nth-child(even) td {
    background: var(--cream-alt);
}

.hours-table tr:last-child td {
    border-bottom: none;
}

.hours-note {
    text-align: center;
    color: var(--text-muted);
    font-style: italic;
    margin-top: 18px;
}

/* About */
.about-section {
    position: relative;
    background-size: cover;
    background-position: center;
    color: #fff;
}

.about-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(86, 17, 31, 0.75), rgba(43, 24, 16, 0.85));
}

.about-content {
    position: relative;
    z-index: 1;
    max-width: 760px;
    margin: 0 auto;
    text-align: center;
    padding: 0 24px;
}

.about-content h2 {
    color: var(--gold-light);
}

.about-content p {
    color: rgba(255, 255, 255, 0.92);
    margin-bottom: 1.3em;
}

/* Menu */
.menu-notes p {
    text-align: center;
    color: var(--text-muted);
    font-style: italic;
    font-size: 0.92rem;
    margin: 0.2em auto;
    max-width: 780px;
}

.menu-category {
    margin-top: 18px;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.menu-category-title {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--maroon);
    color: #fff;
    border: none;
    padding: 18px 24px;
    font-family: "Playfair Display", serif;
    font-size: 1.25rem;
    font-weight: 700;
    cursor: pointer;
    text-align: left;
}

.menu-category-title .arrow {
    transition: transform 0.25s ease;
    color: var(--gold-light);
}

.menu-category-title.active .arrow {
    transform: rotate(180deg);
}

.menu-category-content {
    max-height: 0;
    overflow: hidden;
    background: #fff;
    transition: max-height 0.35s ease;
}

.menu-category-content.active {
    max-height: 2000px;
}

.menu-group {
    padding: 22px 26px;
}

.menu-group h3 {
    font-size: 1.15rem;
    color: var(--maroon);
    margin-bottom: 0.7em;
}

.menu-group ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.menu-group li {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    padding: 9px 0;
    border-bottom: 1px dashed var(--cream-alt);
    color: var(--text);
}

.menu-group li:last-child {
    border-bottom: none;
}

.menu-group li .price {
    font-weight: 700;
    color: var(--maroon-dark);
    white-space: nowrap;
}

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

.menu-columns > .menu-group:not(:last-child) {
    border-right: 1px solid var(--cream-alt);
}

/* Gallery */
.gallery {
    display: flex;
    gap: 18px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    padding: 8px 4px 20px;
}

.gallery img {
    scroll-snap-align: center;
    flex: 0 0 auto;
    width: 320px;
    height: 380px;
    object-fit: cover;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.gallery-controls {
    display: flex;
    justify-content: center;
    gap: 14px;
    margin-top: 10px;
}

.gallery-controls button {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: 2px solid var(--maroon);
    background: #fff;
    color: var(--maroon);
    font-size: 1.1rem;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease;
}

.gallery-controls button:hover {
    background: var(--maroon);
    color: #fff;
}

/* Contact */
.contact-list {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
    margin-top: 1.5em;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 1.05rem;
}

.contact-item svg {
    flex: none;
    color: var(--maroon);
}

.contact-item a:hover {
    color: var(--maroon);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-top: 1.8em;
}

.social-links a {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--maroon);
    color: #fff;
    transition: background 0.2s ease, transform 0.2s ease;
}

.social-links a:hover {
    background: var(--gold);
    color: var(--maroon-dark);
    transform: translateY(-2px);
}

/* Footer */
.site-footer {
    background: var(--maroon-dark);
    color: rgba(255, 255, 255, 0.85);
    text-align: center;
    padding: 34px 24px;
}

.site-footer a {
    color: var(--gold-light);
    font-weight: 600;
}

.site-footer a:hover {
    text-decoration: underline;
}

.site-footer p {
    margin: 0.3em 0;
}

/* Booking form */
.booking-wrap {
    max-width: 560px;
    margin: -90px auto 0;
    position: relative;
    z-index: 3;
    padding: 0 24px 60px;
}

.booking-card {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 40px;
    border-top: 5px solid var(--gold);
}

.booking-card h2 {
    text-align: center;
    margin-bottom: 0.2em;
}

.booking-card .section-subtitle {
    margin-bottom: 1.8em;
}

.field {
    margin-bottom: 20px;
}

.field label {
    display: block;
    font-weight: 700;
    font-size: 0.92rem;
    margin-bottom: 6px;
    color: var(--maroon-dark);
}

.field input,
.field select {
    width: 100%;
    padding: 12px 14px;
    border: 1.5px solid var(--cream-alt);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    background: var(--cream);
    color: var(--text);
    transition: border-color 0.2s ease;
}

.field input:focus,
.field select:focus {
    outline: none;
    border-color: var(--gold);
}

.field-error {
    color: #a3242f;
    font-size: 0.85rem;
    margin-top: 6px;
}

.field-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

@media (max-width: 480px) {
    .field-row {
        grid-template-columns: 1fr;
    }

    .booking-wrap {
        margin-top: -60px;
    }

    .booking-card {
        padding: 28px 22px;
    }
}

/* Thank-you page */
.confirmation-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
}

.confirmation-card {
    max-width: 520px;
    width: 100%;
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border-top: 5px solid var(--gold);
    padding: 44px 38px;
    text-align: center;
}

.confirmation-card img.logo {
    width: 72px;
    height: 72px;
    object-fit: cover;
    border-radius: 50%;
    margin: 0 auto 18px;
    border: 2px solid var(--gold);
}

.confirmation-card h1 {
    font-size: 1.9rem;
}

.confirmation-details {
    text-align: left;
    background: var(--cream-alt);
    border-radius: 10px;
    padding: 18px 22px;
    margin: 22px 0;
}

.confirmation-details p {
    margin: 6px 0;
    color: var(--text);
}

.confirmation-note {
    color: var(--text-muted);
    font-size: 0.95rem;
}