/* ========================================
   Drink Exchange — Stylesheet
   Classic & Elegant · Teal + Slate Grey
   ======================================== */

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

:root {
    --teal-50: #f0fdfa;
    --teal-100: #ccfbf1;
    --teal-200: #99f6e4;
    --teal-300: #5eead4;
    --teal-400: #2dd4bf;
    --teal-500: #14b8a6;
    --teal-600: #0d9488;
    --teal-700: #0f766e;
    --teal-800: #115e59;
    --teal-900: #134e4a;
    --teal-950: #042f2e;

    --slate-50: #f8fafc;
    --slate-100: #f1f5f9;
    --slate-200: #e2e8f0;
    --slate-300: #cbd5e1;
    --slate-400: #94a3b8;
    --slate-500: #64748b;
    --slate-600: #475569;
    --slate-700: #334155;
    --slate-800: #1e293b;
    --slate-900: #0f172a;
    --slate-950: #020617;

    --serif: 'Playfair Display', Georgia, 'Times New Roman', serif;
    --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;

    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.07), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(15, 23, 42, 0.1), 0 8px 10px -6px rgba(15, 23, 42, 0.06);

    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--sans);
    color: var(--slate-800);
    background-color: var(--slate-50);
    line-height: 1.6;
    overflow-x: hidden;
}

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

a {
    color: var(--teal-700);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--teal-600);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
    font-family: var(--serif);
    font-weight: 500;
    line-height: 1.2;
    color: var(--slate-900);
}

em {
    font-style: italic;
    color: var(--teal-700);
}

/* ---------- Section Eyebrow ---------- */
.section-eyebrow {
    font-family: var(--sans);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--teal-600);
    margin-bottom: 12px;
}

/* ---------- Section Title ---------- */
.section-title {
    font-size: clamp(1.875rem, 4vw, 2.75rem);
    font-weight: 500;
    margin-bottom: 24px;
    color: var(--slate-900);
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--sans);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    padding: 14px 28px;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
}

.btn-primary {
    background-color: var(--teal-700);
    color: #ffffff;
    border-color: var(--teal-700);
}

.btn-primary:hover {
    background-color: var(--teal-800);
    border-color: var(--teal-800);
    color: #ffffff;
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: transparent;
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: #ffffff;
    color: #ffffff;
    transform: translateY(-1px);
}

.btn-full {
    width: 100%;
}

/* ---------- Header / Navigation ---------- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(248, 250, 252, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--slate-200);
    transition: box-shadow var(--transition);
}

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

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--slate-900);
}

.logo-mark {
    font-family: var(--serif);
    font-size: 0.875rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--teal-700);
    background: linear-gradient(135deg, var(--teal-600), var(--teal-800));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1.5px solid var(--teal-600);
    border-radius: var(--radius-sm);
}

.logo-text {
    font-family: var(--serif);
    font-size: 1.125rem;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.main-nav {
    display: flex;
    align-items: center;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 8px;
}

.nav-menu a {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--slate-600);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.nav-menu a:hover {
    color: var(--teal-700);
    background-color: var(--teal-50);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    width: 40px;
    height: 40px;
    position: relative;
}

.hamburger {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: block;
    width: 20px;
    height: 2px;
    background-color: var(--slate-700);
    transition: all var(--transition);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--slate-700);
    transition: all var(--transition);
}

.hamburger::before { top: -6px; }
.hamburger::after { bottom: -6px; }

.nav-toggle[aria-expanded="true"] .hamburger {
    background-color: transparent;
}

.nav-toggle[aria-expanded="true"] .hamburger::before {
    top: 0;
    transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .hamburger::after {
    bottom: 0;
    transform: rotate(-45deg);
}

/* ---------- Hero ---------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--slate-900);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 1;
}

.hero-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.4;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        rgba(15, 23, 42, 0.55) 0%,
        rgba(15, 23, 42, 0.7) 50%,
        rgba(15, 23, 42, 0.85) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 120px 24px 80px;
    max-width: 800px;
}

.hero-eyebrow {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--teal-300);
    margin-bottom: 24px;
}

.hero-headline {
    font-family: var(--serif);
    font-size: clamp(2.25rem, 6vw, 4rem);
    font-weight: 500;
    line-height: 1.15;
    color: #ffffff;
    margin-bottom: 24px;
}

.hero-accent {
    color: var(--teal-300);
    font-style: italic;
}

.hero-sub {
    font-size: clamp(1rem, 2vw, 1.1875rem);
    color: var(--slate-300);
    line-height: 1.7;
    max-width: 560px;
    margin: 0 auto 40px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-scroll {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--slate-400);
    font-size: 0.6875rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    opacity: 0.7;
    animation: float 2.5s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(6px); }
}

/* ---------- About ---------- */
.about {
    padding: 100px 0;
    background-color: var(--slate-50);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.about-image img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
}

.about-content {
    padding: 16px 0;
}

.about-content p {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--slate-600);
    margin-bottom: 16px;
}

.about-features {
    display: flex;
    gap: 32px;
    margin-top: 40px;
    padding-top: 32px;
    border-top: 1px solid var(--slate-200);
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.feature-icon {
    flex-shrink: 0;
    color: var(--teal-600);
    margin-top: 2px;
}

.feature-item span {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--slate-700);
    line-height: 1.4;
}

/* ---------- Products ---------- */
.products {
    padding: 100px 0;
    background-color: #ffffff;
}

.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 64px;
}

.section-subtitle {
    font-size: 1rem;
    color: var(--slate-500);
    line-height: 1.7;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.product-card {
    display: block;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background-color: var(--slate-50);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    text-decoration: none;
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.product-card:hover .product-card-title {
    color: var(--teal-700);
}

.product-card-img {
    overflow: hidden;
    height: 220px;
}

.product-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-card:hover .product-card-img img {
    transform: scale(1.05);
}

.product-card-body {
    padding: 24px;
}

.product-card-title {
    font-family: var(--serif);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--slate-900);
    margin-bottom: 8px;
    transition: color var(--transition);
}

.product-card-body p {
    font-size: 0.875rem;
    color: var(--slate-500);
    line-height: 1.6;
}

/* ---------- Visit ---------- */
.visit {
    padding: 100px 0;
    background-color: var(--slate-900);
}

.visit-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: stretch;
}

.visit-content {
    padding: 16px 0;
}

.visit-content .section-title {
    color: #ffffff;
}

.visit-content .section-title em {
    color: var(--teal-400);
}

.visit-content > p.section-subtitle {
    color: var(--slate-400);
    margin-bottom: 40px;
    font-size: 1rem;
    line-height: 1.7;
}

.visit-info {
    display: flex;
    flex-direction: column;
    gap: 28px;
    list-style: none;
}

.visit-detail {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.visit-icon {
    flex-shrink: 0;
    color: var(--teal-400);
    margin-top: 2px;
}

.visit-detail strong {
    display: block;
    font-family: var(--serif);
    font-size: 1rem;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 4px;
}

.visit-detail p {
    font-size: 0.9375rem;
    color: var(--slate-400);
    line-height: 1.6;
}

.visit-detail a {
    color: var(--teal-400);
}

.visit-detail a:hover {
    color: var(--teal-300);
}

.visit-map {
    border-radius: var(--radius-lg);
    overflow: hidden;
    min-height: 400px;
    box-shadow: var(--shadow-xl);
}

.visit-map iframe {
    width: 100%;
    height: 100%;
    min-height: 400px;
}

/* ---------- Contact ---------- */
.contact {
    padding: 100px 0;
    background-color: var(--teal-50);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}

.contact-text {
    padding: 16px 0;
}

.contact-text .section-title {
    color: var(--slate-900);
}

.contact-text .section-title em {
    color: var(--teal-700);
}

.contact-text > p {
    font-size: 1rem;
    color: var(--slate-600);
    line-height: 1.7;
    margin-bottom: 32px;
}

.contact-direct {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 24px;
    background-color: #ffffff;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

.contact-link {
    font-family: var(--serif);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--teal-700);
    display: flex;
    align-items: center;
    gap: 10px;
}

.contact-link:hover {
    color: var(--teal-800);
}

.contact-form {
    background-color: #ffffff;
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-lg);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--slate-700);
    margin-bottom: 6px;
    letter-spacing: 0.02em;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    font-family: var(--sans);
    font-size: 0.9375rem;
    color: var(--slate-800);
    background-color: var(--slate-50);
    border: 1.5px solid var(--slate-200);
    border-radius: var(--radius-md);
    outline: none;
    transition: all var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--teal-500);
    background-color: #ffffff;
    box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--slate-400);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-note {
    font-size: 0.75rem;
    color: var(--slate-400);
    text-align: center;
    margin-top: 12px;
}

.form-success {
    text-align: center;
    padding: 48px 24px;
}

.form-success svg {
    color: var(--teal-600);
    margin: 0 auto 16px;
}

.form-success h3 {
    font-family: var(--serif);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--slate-900);
    margin-bottom: 8px;
}

.form-success p {
    color: var(--slate-500);
    font-size: 0.9375rem;
}

/* ---------- Footer ---------- */
.site-footer {
    background-color: var(--slate-950);
    padding: 64px 0 0;
}

.footer-inner {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid var(--slate-800);
}

.footer-brand .logo-text {
    color: #ffffff;
}

.footer-brand p {
    font-size: 0.875rem;
    color: var(--slate-500);
    line-height: 1.7;
    margin-top: 12px;
}

.footer-links h4,
.footer-contact h4 {
    font-family: var(--sans);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--slate-400);
    margin-bottom: 16px;
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    font-size: 0.875rem;
    color: var(--slate-500);
}

.footer-links a:hover {
    color: var(--teal-400);
}

.footer-contact address {
    font-style: normal;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.footer-contact p {
    font-size: 0.875rem;
    color: var(--slate-500);
    line-height: 1.6;
}

.footer-contact a {
    color: var(--teal-400);
}

.footer-contact a:hover {
    color: var(--teal-300);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-bottom p {
    font-size: 0.8125rem;
    color: var(--slate-600);
}

/* ---------- Scroll Reveal (progressive enhancement) ---------- */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(24px);
        transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
    .about-grid,
    .visit-layout,
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-image img {
        height: 360px;
    }

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

    .footer-inner {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }

    .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background-color: rgba(248, 250, 252, 0.98);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        flex-direction: column;
        padding: 16px 24px;
        border-bottom: 1px solid var(--slate-200);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition);
    }

    .nav-menu.open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-menu li {
        width: 100%;
    }

    .nav-menu a {
        display: block;
        padding: 12px 16px;
        font-size: 1rem;
    }

    .hero-headline {
        font-size: clamp(1.875rem, 8vw, 2.75rem);
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .hero-actions .btn {
        width: 100%;
        max-width: 280px;
    }

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

    .about-features {
        flex-direction: column;
        gap: 20px;
    }

    .contact-form {
        padding: 24px;
    }

    .footer-inner {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero-content {
        padding: 100px 16px 60px;
    }

    .about,
    .products,
    .visit,
    .contact {
        padding: 64px 0;
    }
}