/* ============================================
   Downtown Nutrition — Styles
   Palette: Charcoal (#1A1A1A) + Coral (#FF6B4A)
   Fonts: Playfair Display (headlines) + Inter (body)
   ============================================ */

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

:root {
    --charcoal: #1A1A1A;
    --charcoal-light: #2A2A2A;
    --charcoal-mid: #3A3A3A;
    --coral: #FF6B4A;
    --coral-dark: #E85A3A;
    --coral-light: #FF8A72;
    --white: #FFFFFF;
    --off-white: #F7F7F5;
    --gray-50: #FAFAF9;
    --gray-100: #F5F5F4;
    --gray-200: #E7E5E4;
    --gray-300: #D6D3D1;
    --gray-400: #A8A29E;
    --gray-500: #78716C;
    --gray-600: #57534E;
    --gray-700: #44403C;
    --gray-800: #292524;
    --gray-900: #1C1917;

    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    --space-xs: 0.5rem;
    --space-sm: 0.75rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    --shadow-sm: 0 1px 3px rgba(26,26,26,0.08), 0 1px 2px rgba(26,26,26,0.06);
    --shadow-md: 0 4px 16px rgba(26,26,26,0.10), 0 2px 4px rgba(26,26,26,0.06);
    --shadow-lg: 0 12px 40px rgba(26,26,26,0.12), 0 4px 12px rgba(26,26,26,0.08);
    --shadow-xl: 0 24px 60px rgba(26,26,26,0.14), 0 8px 20px rgba(26,26,26,0.10);

    --transition-fast: 180ms ease;
    --transition-base: 280ms ease;
    --transition-slow: 420ms ease;
}

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

body {
    font-family: var(--font-body);
    color: var(--charcoal);
    background-color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

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

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

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.02em;
}

.section-label {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--coral);
    margin-bottom: var(--space-lg);
}

.section-label::before {
    content: '';
    display: inline-block;
    width: 24px;
    height: 2px;
    background: var(--coral);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3.25rem);
    color: var(--charcoal);
    margin-bottom: var(--space-lg);
}

.section-desc {
    font-size: 1.1rem;
    color: var(--gray-600);
    max-width: 560px;
    line-height: 1.7;
}

.section-header--centered {
    text-align: center;
}

.section-header--centered .section-desc {
    margin: 0 auto;
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 0.875rem 1.75rem;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-coral {
    background: var(--coral);
    color: var(--white);
    box-shadow: 0 4px 14px rgba(255,107,74,0.35);
}

.btn-coral:hover {
    background: var(--coral-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255,107,74,0.45);
}

.btn-dark {
    background: var(--charcoal);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

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

.btn-outline {
    background: transparent;
    color: var(--charcoal);
    border: 2px solid var(--gray-300);
}

.btn-outline:hover {
    border-color: var(--coral);
    color: var(--coral);
    transform: translateY(-2px);
}

.text-coral {
    color: var(--coral);
}

/* ---------- Header / Navigation ---------- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.97);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--gray-200);
    transition: box-shadow var(--transition-base);
}

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

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

.logo {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.15rem;
    color: var(--charcoal);
    letter-spacing: -0.02em;
}

.logo-icon {
    flex-shrink: 0;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-2xl);
}

.nav-menu a {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-600);
    transition: color var(--transition-fast);
    position: relative;
}

.nav-menu a:not(.btn):hover {
    color: var(--charcoal);
}

.nav-menu a:not(.btn)::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--coral);
    transition: width var(--transition-base);
}

.nav-menu a:not(.btn):hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-sm);
    z-index: 1001;
}

.nav-toggle-line {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--charcoal);
    border-radius: 2px;
    transition: all var(--transition-base);
    transform-origin: center;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(2) {
    opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ---------- Hero ---------- */
.hero {
    padding-top: 72px;
    min-height: 100vh;
    min-height: 100dvh;
    background: var(--off-white);
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
    padding: var(--space-3xl) 0;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 0.5rem 1rem;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--gray-600);
    margin-bottom: var(--space-xl);
}

.badge-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--coral);
    display: inline-block;
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.3); }
}

.hero-headline {
    font-size: clamp(2.5rem, 5vw, 4rem);
    line-height: 1.08;
    margin-bottom: var(--space-xl);
    color: var(--charcoal);
}

.hero-sub {
    font-size: 1.125rem;
    color: var(--gray-600);
    line-height: 1.75;
    margin-bottom: var(--space-2xl);
    max-width: 480px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-bottom: var(--space-3xl);
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.stat {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--charcoal);
    letter-spacing: -0.02em;
}

.stat-label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--gray-300);
}

.hero-visual {
    position: relative;
}

.hero-image-wrapper {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

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

.hero-image-accent {
    position: absolute;
    top: -16px;
    right: -16px;
    width: 120px;
    height: 120px;
    background: var(--coral);
    border-radius: var(--radius-lg);
    z-index: -1;
    opacity: 0.15;
}

.hero-card {
    position: absolute;
    bottom: -24px;
    left: -24px;
    display: flex;
    align-items: center;
    gap: var(--space-md);
    background: var(--white);
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
}

.hero-card-img {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    flex-shrink: 0;
}

.hero-card-text {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

.hero-card-text strong {
    font-size: 0.9rem;
    color: var(--charcoal);
}

.hero-card-text span {
    font-size: 0.78rem;
    color: var(--gray-500);
}

/* ---------- Products ---------- */
.section {
    padding: var(--space-4xl) 0;
}

.products {
    background: var(--white);
}

.section-header {
    margin-bottom: var(--space-3xl);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.product-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
}

.product-card:hover {
    border-color: transparent;
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.product-card-img-wrap {
    overflow: hidden;
    aspect-ratio: 4/3;
}

.product-card-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.product-card-body {
    padding: var(--space-xl);
}

.product-category {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--coral);
    margin-bottom: var(--space-sm);
}

.product-name {
    font-size: 1.35rem;
    margin-bottom: var(--space-sm);
    color: var(--charcoal);
}

.product-desc {
    font-size: 0.9rem;
    color: var(--gray-600);
    line-height: 1.7;
}

/* ---------- About ---------- */
.about {
    background: var(--off-white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.about-visual {
    position: relative;
}

.about-image-main {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

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

.about-image-secondary {
    position: absolute;
    bottom: -32px;
    right: -32px;
    width: 55%;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    border: 4px solid var(--white);
}

.about-image-secondary img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.about-experience-badge {
    position: absolute;
    top: -20px;
    right: -20px;
    background: var(--charcoal);
    color: var(--white);
    padding: var(--space-lg) var(--space-xl);
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.about-experience-badge .exp-number {
    display: block;
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--coral);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.about-experience-badge .exp-text {
    display: block;
    font-size: 0.75rem;
    color: var(--gray-400);
    margin-top: 0.25rem;
}

.about-content .section-title {
    margin-bottom: var(--space-xl);
}

.about-body {
    font-size: 1rem;
    color: var(--gray-600);
    line-height: 1.8;
    margin-bottom: var(--space-lg);
}

.about-values {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
    margin-top: var(--space-2xl);
}

.value-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-lg);
}

.value-icon {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--coral);
}

.value-item strong {
    display: block;
    font-size: 1rem;
    color: var(--charcoal);
    margin-bottom: 0.25rem;
}

.value-item span {
    font-size: 0.875rem;
    color: var(--gray-500);
    line-height: 1.5;
}

/* ---------- Process ---------- */
.process {
    background: var(--charcoal);
    color: var(--white);
}

.process .section-label {
    color: var(--coral);
}

.process .section-label::before {
    background: var(--coral);
}

.process .section-title {
    color: var(--white);
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
    margin-top: var(--space-3xl);
}

.process-step {
    position: relative;
    padding: var(--space-2xl);
    background: var(--charcoal-light);
    border: 1px solid var(--charcoal-mid);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.process-step:hover {
    border-color: var(--coral);
    transform: translateY(-4px);
}

.step-number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 800;
    color: var(--coral);
    opacity: 0.3;
    line-height: 1;
    margin-bottom: var(--space-lg);
}

.step-title {
    font-size: 1.2rem;
    color: var(--white);
    margin-bottom: var(--space-md);
}

.step-desc {
    font-size: 0.9rem;
    color: var(--gray-400);
    line-height: 1.7;
}

/* ---------- Testimonials ---------- */
.testimonials {
    background: var(--white);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.testimonial-card {
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
    position: relative;
    transition: all var(--transition-base);
}

.testimonial-card:hover {
    border-color: var(--coral);
    box-shadow: var(--shadow-md);
}

.testimonial-quote-mark {
    position: absolute;
    top: var(--space-lg);
    right: var(--space-xl);
    font-family: var(--font-display);
    font-size: 5rem;
    line-height: 1;
    color: var(--coral);
    opacity: 0.15;
}

.testimonial-text {
    font-size: 1rem;
    color: var(--gray-700);
    line-height: 1.8;
    margin-bottom: var(--space-xl);
    position: relative;
    z-index: 1;
}

.testimonial-author {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    border-top: 1px solid var(--gray-200);
    padding-top: var(--space-lg);
}

.author-name {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--charcoal);
}

.author-detail {
    font-size: 0.8rem;
    color: var(--gray-500);
}

/* ---------- Visit / CTA ---------- */
.visit {
    background: var(--off-white);
}

.visit-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: start;
}

.visit-content .section-title {
    margin-bottom: var(--space-lg);
}

.visit-desc {
    font-size: 1.05rem;
    color: var(--gray-600);
    line-height: 1.75;
    margin-bottom: var(--space-2xl);
}

.visit-details {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.detail-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-lg);
}

.detail-item dt {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
}

.detail-item dd {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.detail-item strong {
    font-size: 0.95rem;
    color: var(--charcoal);
}

.detail-item span,
.detail-item a {
    font-size: 0.9rem;
    color: var(--gray-600);
    line-height: 1.6;
}

.detail-item a:hover {
    color: var(--coral);
}

.visit-map {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-200);
    aspect-ratio: 4/3;
}

.visit-map iframe {
    width: 100%;
    height: 100%;
    display: block;
}

/* ---------- Footer ---------- */
.site-footer {
    background: var(--charcoal);
    color: var(--gray-400);
    padding: var(--space-4xl) 0 var(--space-xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--space-3xl);
    padding-bottom: var(--space-3xl);
    border-bottom: 1px solid var(--charcoal-mid);
}

.footer-brand .logo {
    color: var(--white);
    margin-bottom: var(--space-lg);
}

.footer-tagline {
    font-size: 0.9rem;
    line-height: 1.75;
    color: var(--gray-500);
    max-width: 300px;
}

.footer-links,
.footer-contact {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.footer-links strong,
.footer-contact strong {
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--gray-400);
    margin-bottom: var(--space-sm);
}

.footer-links a {
    font-size: 0.9rem;
    color: var(--gray-500);
    transition: color var(--transition-fast);
}

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

.footer-contact address {
    font-style: normal;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.footer-contact a {
    font-size: 0.9rem;
    color: var(--gray-500);
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-md);
    padding-top: var(--space-xl);
    font-size: 0.8rem;
    color: var(--gray-600);
}

.footer-bottom a {
    color: var(--gray-500);
    transition: color var(--transition-fast);
}

.footer-bottom a:hover {
    color: var(--coral);
}

/* ---------- Scroll Reveal (progressive enhancement) ---------- */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(24px);
        transition: opacity 600ms ease, transform 600ms ease;
    }

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

    .reveal-delay-1 { transition-delay: 100ms; }
    .reveal-delay-2 { transition-delay: 200ms; }
    .reveal-delay-3 { transition-delay: 300ms; }
    .reveal-delay-4 { transition-delay: 400ms; }
    .reveal-delay-5 { transition-delay: 500ms; }
    .reveal-delay-6 { transition-delay: 600ms; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
    .hero-grid {
        gap: var(--space-2xl);
    }

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

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

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

@media (max-width: 768px) {
    :root {
        --space-4xl: 4rem;
    }

    .container {
        padding: 0 var(--space-lg);
    }

    /* Mobile Nav */
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: 0;
        width: 280px;
        height: 100vh;
        height: 100dvh;
        background: var(--white);
        flex-direction: column;
        align-items: stretch;
        padding: 96px var(--space-xl) var(--space-xl);
        gap: var(--space-lg);
        box-shadow: var(--shadow-xl);
        transform: translateX(100%);
        transition: transform var(--transition-base);
        z-index: 999;
    }

    .nav-menu.open {
        transform: translateX(0);
    }

    .nav-menu a {
        font-size: 1rem;
        padding: var(--space-sm) 0;
        border-bottom: 1px solid var(--gray-100);
    }

    .nav-menu a:not(.btn)::after {
        display: none;
    }

    .nav-menu .btn {
        margin-top: var(--space-md);
        text-align: center;
    }

    .nav-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(26,26,26,0.5);
        z-index: 998;
    }

    .nav-overlay.active {
        display: block;
    }

    /* Hero */
    .hero-grid {
        grid-template-columns: 1fr;
        padding: var(--space-2xl) 0;
    }

    .hero-visual {
        order: -1;
    }

    .hero-image-wrapper {
        border-radius: var(--radius-md);
    }

    .hero-card {
        position: relative;
        bottom: auto;
        left: auto;
        margin-top: var(--space-md);
    }

    .hero-stats {
        gap: var(--space-lg);
    }

    /* About */
    .about-grid {
        grid-template-columns: 1fr;
    }

    .about-visual {
        max-width: 480px;
    }

    .about-image-secondary {
        right: 0;
        bottom: -24px;
        width: 50%;
    }

    .about-experience-badge {
        right: 0;
        top: -16px;
    }

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

    /* Process */
    .process-grid {
        grid-template-columns: 1fr;
    }

    /* Testimonials */
    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    /* Visit */
    .visit-grid {
        grid-template-columns: 1fr;
    }

    /* Footer */
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }

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

@media (max-width: 480px) {
    .hero-headline {
        font-size: 2rem;
    }

    .hero-actions {
        flex-direction: column;
    }

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

    .hero-stats {
        flex-wrap: wrap;
    }

    .stat-divider {
        display: none;
    }
}