/* ========================================
   Thirst RX — Clean Minimalist Design
   Palette: Emerald Green + Cream
======================================== */

/* --- CSS Custom Properties --- */
:root {
    --color-emerald-900: #064E3B;
    --color-emerald-800: #065F46;
    --color-emerald-700: #047857;
    --color-emerald-600: #059669;
    --color-emerald-500: #10B981;
    --color-cream-50:  #F5F0E8;
    --color-cream-100: #EDE6D6;
    --color-cream-200: #E5DCC8;
    --color-cream-300: #D4CBB3;
    --color-dark:      #1A1A1A;
    --color-text:      #2D2D2D;
    --color-text-light:#5A5A5A;
    --color-white:     #FFFFFF;
    
    --font-serif: 'Cormorant Garamond', Georgia, serif;
    --font-sans:  'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    --nav-height: 72px;
    --container-max: 1200px;
    --section-padding: clamp(80px, 12vw, 140px);
}

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

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

body {
    font-family: var(--font-sans);
    font-weight: 300;
    color: var(--color-text);
    background-color: var(--color-cream-50);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
    list-style: none;
}

/* --- Utility --- */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 clamp(24px, 4vw, 64px);
}

.section-label {
    font-family: var(--font-sans);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-emerald-700);
    margin-bottom: 16px;
}

.section-title {
    font-family: var(--font-serif);
    font-size: clamp(2.2rem, 5vw, 3.8rem);
    font-weight: 300;
    line-height: 1.15;
    color: var(--color-emerald-900);
    margin-bottom: 32px;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 400;
    letter-spacing: 0.06em;
    border-radius: 2px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: 1px solid transparent;
}

.btn-primary {
    background-color: var(--color-emerald-800);
    color: var(--color-cream-50);
    border-color: var(--color-emerald-800);
}

.btn-primary:hover {
    background-color: var(--color-emerald-700);
    border-color: var(--color-emerald-700);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(6, 95, 70, 0.25);
}

.btn-ghost {
    background-color: transparent;
    color: var(--color-emerald-800);
    border-color: var(--color-emerald-800);
}

.btn-ghost:hover {
    background-color: var(--color-emerald-800);
    color: var(--color-cream-50);
}

/* --- Navigation --- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--nav-height);
    background-color: rgba(245, 240, 232, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-cream-200);
    transition: box-shadow 0.3s ease;
}

.nav.scrolled {
    box-shadow: 0 1px 20px rgba(6, 78, 59, 0.06);
}

.nav-inner {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 clamp(24px, 4vw, 64px);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-serif);
    font-size: 1.35rem;
    font-weight: 500;
    color: var(--color-emerald-900);
    letter-spacing: -0.01em;
}

.nav-logo-icon {
    color: var(--color-emerald-800);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 40px;
}

.nav-links a {
    font-family: var(--font-sans);
    font-size: 0.82rem;
    font-weight: 400;
    letter-spacing: 0.06em;
    color: var(--color-text-light);
    transition: color 0.25s ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-emerald-700);
    transition: width 0.3s ease;
}

.nav-links a:hover {
    color: var(--color-emerald-800);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-cta {
    padding: 9px 22px;
    border: 1px solid var(--color-emerald-700);
    border-radius: 2px;
    color: var(--color-emerald-800) !important;
    transition: all 0.25s ease !important;
}

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

.nav-cta:hover {
    background-color: var(--color-emerald-800) !important;
    color: var(--color-cream-50) !important;
}

/* Mobile nav toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 1.5px;
    background-color: var(--color-emerald-900);
    transition: all 0.3s ease;
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(4px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -5px);
}

/* --- Hero --- */
.hero {
    position: relative;
    height: 100vh;
    min-height: 640px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    background-color: var(--color-emerald-900);
}

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

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.55;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        rgba(6, 78, 59, 0.40) 0%,
        rgba(6, 78, 59, 0.65) 100%
    );
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 720px;
    padding: 0 24px;
}

.hero-eyebrow {
    font-family: var(--font-sans);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--color-cream-200);
    margin-bottom: 28px;
    opacity: 0;
    animation: fadeUp 0.8s ease 0.2s forwards;
}

.hero-headline {
    font-family: var(--font-serif);
    font-size: clamp(2.6rem, 7vw, 5rem);
    font-weight: 300;
    line-height: 1.1;
    color: var(--color-cream-50);
    margin-bottom: 28px;
    opacity: 0;
    animation: fadeUp 0.8s ease 0.4s forwards;
}

.hero-headline em {
    font-style: italic;
    color: var(--color-cream-200);
}

.hero-sub {
    font-family: var(--font-sans);
    font-size: clamp(1rem, 1.5vw, 1.15rem);
    font-weight: 300;
    line-height: 1.8;
    color: var(--color-cream-200);
    margin-bottom: 44px;
    opacity: 0;
    animation: fadeUp 0.8s ease 0.6s forwards;
}

.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    opacity: 0;
    animation: fadeUp 0.8s ease 0.8s forwards;
}

.hero-actions .btn-ghost {
    color: var(--color-cream-200);
    border-color: var(--color-cream-300);
}

.hero-actions .btn-ghost:hover {
    background-color: var(--color-cream-50);
    color: var(--color-emerald-900);
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    color: var(--color-cream-300);
    opacity: 0;
    animation: fadeUp 0.8s ease 1.2s forwards;
}

.hero-scroll svg {
    animation: bounce 2s ease infinite;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* --- About --- */
.about {
    padding: var(--section-padding) 0;
    background-color: var(--color-cream-50);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(40px, 6vw, 80px);
    align-items: center;
}

.about-text p {
    font-size: 1.02rem;
    color: var(--color-text-light);
    line-height: 1.85;
    margin-bottom: 20px;
}

.about-image {
    position: relative;
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 2px;
    aspect-ratio: 4/5;
}

.about-image::before {
    content: '';
    position: absolute;
    top: -16px;
    right: -16px;
    width: 100%;
    height: 100%;
    border: 1px solid var(--color-emerald-300);
    border-radius: 2px;
    z-index: -1;
}

/* --- Divider --- */
.divider {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 clamp(24px, 4vw, 64px);
}

.divider-line {
    height: 1px;
    background-color: var(--color-cream-200);
}

/* --- Products --- */
.products {
    padding: var(--section-padding) 0;
    background-color: var(--color-white);
}

.section-header {
    text-align: center;
    margin-bottom: clamp(48px, 8vw, 80px);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: clamp(24px, 4vw, 48px);
}

.product-card {
    border-radius: 2px;
    overflow: hidden;
    transition: transform 0.35s ease;
}

.product-card:hover {
    transform: translateY(-4px);
}

.product-image {
    overflow: hidden;
    border-radius: 2px;
}

.product-image img {
    width: 100%;
    height: 260px;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.product-card:hover .product-image img {
    transform: scale(1.04);
}

.product-info {
    padding: 28px 4px;
}

.product-info h3 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--color-emerald-900);
    margin-bottom: 10px;
}

.product-info p {
    font-size: 0.92rem;
    color: var(--color-text-light);
    line-height: 1.75;
}

/* --- Visit --- */
.visit {
    padding: var(--section-padding) 0;
    background-color: var(--color-cream-50);
}

.visit-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(40px, 6vw, 80px);
    align-items: start;
}

.visit-detail {
    display: flex;
    gap: 16px;
    margin-bottom: 32px;
}

.visit-detail svg {
    flex-shrink: 0;
    color: var(--color-emerald-700);
    margin-top: 2px;
}

.visit-detail strong {
    display: block;
    font-family: var(--font-sans);
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-emerald-900);
    margin-bottom: 4px;
}

.visit-detail p {
    font-size: 0.95rem;
    color: var(--color-text-light);
    line-height: 1.7;
}

.visit-detail a {
    color: var(--color-emerald-700);
    transition: color 0.2s ease;
}

.visit-detail a:hover {
    color: var(--color-emerald-900);
}

.visit-cta {
    margin-top: 12px;
}

.visit-map {
    border-radius: 2px;
    overflow: hidden;
    min-height: 420px;
    box-shadow: 0 4px 24px rgba(6, 78, 59, 0.08);
}

/* --- Footer --- */
.footer {
    background-color: var(--color-emerald-900);
    color: var(--color-cream-200);
    padding: clamp(60px, 10vw, 100px) 0 clamp(32px, 5vw, 48px);
}

.footer-inner {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1.2fr;
    gap: clamp(32px, 5vw, 64px);
    margin-bottom: 64px;
}

.footer-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--color-cream-50);
    margin-bottom: 16px;
}

.footer-logo svg {
    color: var(--color-cream-200);
}

.footer-brand p {
    font-size: 0.9rem;
    color: var(--color-cream-300);
    line-height: 1.7;
    max-width: 260px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    font-size: 0.88rem;
    color: var(--color-cream-300);
    transition: color 0.2s ease;
}

.footer-links a:hover {
    color: var(--color-cream-50);
}

.footer-contact p {
    font-size: 0.88rem;
    color: var(--color-cream-300);
    line-height: 1.8;
}

.footer-contact a {
    color: var(--color-cream-300);
    transition: color 0.2s ease;
}

.footer-contact a:hover {
    color: var(--color-cream-50);
}

.footer-bottom {
    border-top: 1px solid rgba(245, 240, 232, 0.12);
    padding-top: 32px;
}

.footer-bottom p {
    font-size: 0.78rem;
    color: var(--color-cream-300);
    opacity: 0.6;
}

/* --- Scroll Reveal (progressive enhancement) --- */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(28px);
        transition: opacity 0.7s ease, transform 0.7s ease;
    }
    
    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Default visible state for no-JS */
.reveal {
    opacity: 1;
    transform: none;
    transition: none;
}

/* --- Responsive --- */
@media (max-width: 900px) {
    .about-grid,
    .visit-grid {
        grid-template-columns: 1fr;
    }
    
    .about-image {
        order: -1;
        max-width: 500px;
    }
    
    .about-image::before {
        top: -10px;
        right: -10px;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
        max-width: 560px;
        margin: 0 auto;
    }
    
    .footer-inner {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
}

@media (max-width: 680px) {
    :root {
        --nav-height: 64px;
    }
    
    .nav-links {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        bottom: 0;
        background-color: rgba(245, 240, 232, 0.98);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        flex-direction: column;
        justify-content: center;
        gap: 32px;
        transform: translateX(100%);
        transition: transform 0.35s ease;
    }
    
    .nav-links.open {
        transform: translateX(0);
    }
    
    .nav-links a {
        font-size: 1.1rem;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-headline {
        font-size: clamp(2.2rem, 10vw, 3.2rem);
    }
    
    .hero-actions {
        flex-direction: column;
        gap: 12px;
    }
    
    .hero-actions .btn {
        width: 100%;
        max-width: 280px;
    }
    
    .footer-inner {
        grid-template-columns: 1fr;
        gap: 36px;
    }
    
    .visit-map {
        min-height: 300px;
    }
}