/* ===========================
   1. CSS Variables
   =========================== */
:root {
    /* Thai Restaurant Color Palette - Warm & Inviting */
    --primary-color: #D4461E;
    --primary-dark: #A83418;
    --primary-light: #E86B47;
    --secondary-color: #F4A261;
    --accent-color: #E9C46A;
    --dark-bg: #1A1A1A;
    --light-bg: #FAF9F6;
    --text-dark: #2B2B2B;
    --text-light: #FFFFFF;
    --text-gray: #666666;
    --border-color: #E0E0E0;
    --success: #52B788;
    --warning: #F4A261;

    /* Typography */
    --font-heading: 'Georgia', serif;
    --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Breakpoints */
    --mobile: 320px;
    --tablet: 768px;
    --desktop: 1024px;
    --wide: 1440px;

    /* Other */
    --transition: all 0.3s ease;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.15);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.2);
    --border-radius: 8px;
}

/* ===========================
   2. Reset & Base Styles
   =========================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
    background-color: var(--light-bg);
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

ul {
    list-style: none;
}

/* ===========================
   3. Layout & Container
   =========================== */
.container {
    width: 100%;
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
}

section {
    padding: var(--spacing-lg) 0;
}

@media (max-width: 767px) {
    section {
        padding: var(--spacing-md) 0;
    }
}

/* ===========================
   4. Typography
   =========================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }

p {
    margin-bottom: var(--spacing-sm);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    color: var(--primary-color);
    position: relative;
    display: inline-block;
}

.section-divider {
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    margin: var(--spacing-sm) auto;
    border-radius: 2px;
}

.section-subtitle {
    color: var(--text-gray);
    font-size: 1.1rem;
    margin-top: var(--spacing-xs);
}

/* ===========================
   5. Navigation
   =========================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition);
}

.nav.nav--scrolled {
    box-shadow: var(--shadow-md);
}

.nav__container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
}

.nav__brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav__logo {
    font-size: 2rem;
}

.nav__name {
    font-family: var(--font-heading);
}

.nav__menu {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.nav__link {
    color: var(--text-dark);
    font-weight: 500;
    position: relative;
    padding: var(--spacing-xs);
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
    transform: translateX(-50%);
}

.nav__link:hover::after {
    width: 100%;
}

.nav__link--cta {
    background: var(--primary-color);
    color: var(--text-light);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
}

.nav__link--cta::after {
    display: none;
}

.nav__link--cta:hover {
    background: var(--primary-dark);
}

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--spacing-xs);
}

.nav__toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
    transition: var(--transition);
}

@media (max-width: 1023px) {
    .nav__toggle {
        display: flex;
    }

    .nav__menu {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 280px;
        height: calc(100vh - 70px);
        background: white;
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-lg);
        transition: var(--transition);
        align-items: flex-start;
    }

    .nav__menu.nav__menu--active {
        right: 0;
    }

    .nav__item {
        width: 100%;
        border-bottom: 1px solid var(--border-color);
    }

    .nav__link {
        display: block;
        padding: var(--spacing-sm) 0;
    }
}

/* ===========================
   6. Hero Section
   =========================== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin-top: 70px;
}

.hero__background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    
    background-size: cover;
    background-position: center;
    animation: slowZoom 20s infinite alternate;
}

@keyframes slowZoom {
    0% { transform: scale(1); }
    100% { transform: scale(1.1); }
}

.hero__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(212, 70, 30, 0.8) 0%, rgba(26, 26, 26, 0.7) 100%);
}

.hero__content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--text-light);
    padding: var(--spacing-md);
}

.hero__title {
    font-size: clamp(3rem, 8vw, 5rem);
    color: var(--text-light);
    margin-bottom: var(--spacing-sm);
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    animation: fadeInUp 1s ease;
}

.hero__subtitle {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 1s ease 0.2s both;
}

.hero__rating {
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 1s ease 0.4s both;
}

.rating__stars {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    margin-bottom: var(--spacing-xs);
}

.star {
    font-size: 1.5rem;
    color: #FFD700;
}

.star--filled {
    color: #FFD700;
}

.star--half::after {
    content: '★';
    position: absolute;
    width: 50%;
    overflow: hidden;
    color: #FFD700;
}

.rating__score {
    margin-left: var(--spacing-xs);
    font-size: 1.5rem;
    font-weight: 700;
}

.rating__count {
    font-size: 1rem;
    opacity: 0.9;
}

.hero__buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease 0.6s both;
}

.btn {
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    transition: var(--transition);
    display: inline-block;
}

.btn--primary {
    background: var(--primary-color);
    color: var(--text-light);
    box-shadow: var(--shadow-md);
}

.btn--primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn--secondary {
    background: transparent;
    color: var(--text-light);
    border: 2px solid var(--text-light);
}

.btn--secondary:hover {
    background: var(--text-light);
    color: var(--primary-color);
}

.hero__scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--text-light);
    font-size: 0.9rem;
    z-index: 2;
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 2px;
    height: 40px;
    background: var(--text-light);
    margin: var(--spacing-xs) auto 0;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* ===========================
   7. About Section
   =========================== */
.about {
    background: white;
}

.about__content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

@media (min-width: 1024px) {
    .about__content {
        grid-template-columns: 1fr 1fr;
    }
}

.about__image {
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.about__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.about__image:hover img {
    transform: scale(1.05);
}

.about__heading {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.about__description {
    font-size: 1.1rem;
    color: var(--text-gray);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.about__highlights {
    display: grid;
    gap: var(--spacing-sm);
}

.highlight {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--light-bg);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.highlight:hover {
    background: #FFF5F0;
    transform: translateX(10px);
}

.highlight__icon {
    font-size: 2.5rem;
    flex-shrink: 0;
}

.highlight__content h4 {
    color: var(--primary-color);
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
}

.highlight__content p {
    color: var(--text-gray);
    margin: 0;
    font-size: 0.95rem;
}

/* ===========================
   8. Features Section
   =========================== */
.features {
    background: linear-gradient(135deg, #FFF5F0 0%, #FFEEE6 100%);
}

.features__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.feature-card {
    background: white;
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.feature-card__icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.feature-card__title {
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
    font-size: 1.25rem;
}

.feature-card__text {
    color: var(--text-gray);
    margin: 0;
}

/* ===========================
   9. Menu Section
   =========================== */
.menu {
    background: white;
}

.menu__popular {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.menu__heading {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.menu__tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.menu__tag {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 20px;
    font-size: 0.95rem;
    font-weight: 500;
    box-shadow: var(--shadow-sm);
}

.menu__price-range {
    background: var(--light-bg);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
}

.menu__price-range strong {
    color: var(--primary-color);
}

.menu__cta {
    margin-top: var(--spacing-sm);
}

/* ===========================
   10. Gallery Section
   =========================== */
.gallery {
    background: var(--light-bg);
}

.gallery__filters {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-md);
}

.gallery__filter {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    background: white;
    font-weight: 500;
    transition: var(--transition);
}

.gallery__filter:hover,
.gallery__filter--active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.gallery__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-sm);
}

.gallery__item {
    border-radius: var(--border-radius);
    overflow: hidden;
    aspect-ratio: 4/3;
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    transition: var(--transition);
}

.gallery__item:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
    z-index: 10;
}

.gallery__item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.gallery__item.hidden {
    display: none;
}

/* ===========================
   11. Reviews Section
   =========================== */
.reviews {
    background: white;
}

.reviews__summary {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--light-bg);
    border-radius: var(--border-radius);
}

@media (min-width: 768px) {
    .reviews__summary {
        grid-template-columns: 1fr 2fr;
    }
}

.reviews__overall {
    text-align: center;
    padding: var(--spacing-md);
}

.reviews__score {
    font-size: 4rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
}

.reviews__stars {
    display: flex;
    justify-content: center;
    gap: 0.25rem;
    margin: var(--spacing-sm) 0;
}

.reviews__total {
    color: var(--text-gray);
}

.reviews__distribution {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.distribution__item {
    display: grid;
    grid-template-columns: 80px 1fr 50px;
    gap: var(--spacing-sm);
    align-items: center;
}

.distribution__label {
    font-size: 0.9rem;
    color: var(--text-gray);
}

.distribution__bar {
    height: 8px;
    background: #E0E0E0;
    border-radius: 4px;
    overflow: hidden;
}

.distribution__fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: width 1s ease;
}

.distribution__count {
    text-align: right;
    font-weight: 500;
    color: var(--text-gray);
}

.reviews__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.review-card {
    background: var(--light-bg);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.review-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-5px);
}

.review-card__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.review-card__rating {
    display: flex;
    gap: 0.25rem;
}

.review-card__date {
    font-size: 0.85rem;
    color: var(--text-gray);
}

.review-card__text {
    color: var(--text-dark);
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
}

.review-card__details {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
}

.detail-badge {
    background: white;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.85rem;
    color: var(--primary-color);
    font-weight: 500;
}

.review-card__context {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    font-size: 0.85rem;
    color: var(--text-gray);
}

.review-card__context span::after {
    content: '•';
    margin-left: var(--spacing-xs);
}

.review-card__context span:last-child::after {
    content: '';
}

/* ===========================
   12. Hours Section
   =========================== */
.hours {
    background: var(--light-bg);
}

.hours__content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 768px) {
    .hours__content {
        grid-template-columns: 1fr 1fr;
    }
}

.hours__schedule {
    background: white;
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.hours__day {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
}

.hours__day:last-child {
    border-bottom: none;
}

.hours__day--weekend {
    background: #FFF5F0;
}

.hours__label {
    font-weight: 600;
    color: var(--text-dark);
}

.hours__time {
    color: var(--primary-color);
    font-weight: 500;
}

.hours__info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.info-card {
    background: white;
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.info-card__title {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.info-card__content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.busy-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.busy-info__icon {
    font-size: 1.5rem;
}

.busy-info__label {
    font-weight: 600;
    margin: 0;
}

.busy-info__time {
    color: var(--text-gray);
    font-size: 0.9rem;
    margin: 0;
}

/* ===========================
   13. Contact Section
   =========================== */
.contact {
    background: white;
}

.contact__content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 1024px) {
    .contact__content {
        grid-template-columns: 1fr 1fr;
    }
}

.contact__info {
    display: grid;
    gap: var(--spacing-sm);
}

.contact__card {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--light-bg);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.contact__card:hover {
    background: #FFF5F0;
    transform: translateX(10px);
}

.contact__icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.contact__details h3 {
    color: var(--primary-color);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xs);
}

.contact__details p {
    color: var(--text-gray);
    margin: 0.25rem 0;
}

.contact__details a {
    color: var(--primary-color);
    font-weight: 500;
}

.contact__details a:hover {
    text-decoration: underline;
}

.contact__link {
    display: inline-block;
    margin-top: var(--spacing-xs);
    color: var(--primary-color);
    font-weight: 600;
}

.contact__map {
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    min-height: 400px;
}

/* ===========================
   14. Footer
   =========================== */
.footer {
    background: var(--dark-bg);
    color: var(--text-light);
    padding: var(--spacing-lg) 0 var(--spacing-sm);
}

.footer__content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.footer__brand {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.footer__logo {
    font-size: 3rem;
}

.footer__brand h3 {
    font-family: var(--font-heading);
    color: var(--text-light);
}

.footer__links h4,
.footer__contact h4,
.footer__order h4 {
    color: var(--secondary-color);
    margin-bottom: var(--spacing-sm);
}

.footer__links ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

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

.footer__contact p {
    margin-bottom: var(--spacing-xs);
}

.footer__bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.6);
}

/* ===========================
   15. Animations & Utilities
   =========================== */
.fade-in {
    opacity: 0;
    animation: fadeIn 0.8s ease forwards;
}

@keyframes fadeIn {
    to {
        opacity: 1;
    }
}

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
    animation: slideInLeft 0.8s ease forwards;
}

@keyframes slideInLeft {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
    animation: slideInRight 0.8s ease forwards;
}

@keyframes slideInRight {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ===========================
   16. Responsive Design
   =========================== */
@media (max-width: 767px) {
    .hero {
        min-height: 500px;
    }

    .hero__title {
        font-size: 2.5rem;
    }

    .hero__buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

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

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

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