/* ============================================
   The Protein H — Stylesheet
   Fresh, airy, pastel tones with charcoal + coral
   ============================================ */

/* ---- CSS Custom Properties ---- */
:root {
    --coral: #E8735A;
    --coral-dark: #C45A42;
    --coral-light: #F4A896;
    --coral-pale: #FDE8E3;
    --coral-ghost: #FFF5F2;
    --charcoal: #2D2D2D;
    --charcoal-light: #4A4A4A;
    --charcoal-muted: #6B6B6B;
    --cream: #FDF8F5;
    --cream-warm: #FAF3EF;
    --white: #FFFFFF;
    --off-white: #FEFCFB;
    --sand: #F0E6DE;
    --sand-light: #F7F0EB;
    --shadow-sm: 0 1px 3px rgba(45,45,45,0.06), 0 1px 2px rgba(45,45,45,0.04);
    --shadow-md: 0 4px 16px rgba(45,45,45,0.08), 0 2px 4px rgba(45,45,45,0.04);
    --shadow-lg: 0 12px 40px rgba(45,45,45,0.10), 0 4px 12px rgba(45,45,45,0.05);
    --shadow-coral: 0 8px 24px rgba(232,115,90,0.25);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --font-display: 'DM Serif Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.7;
    color: var(--charcoal);
    background-color: var(--off-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    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;
}

ul, ol {
    list-style: none;
}

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

@media (min-width: 768px) {
    .container {
        padding: 0 40px;
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 48px;
    }
}

/* ---- Typography ---- */
h1, h2, h3 {
    font-family: var(--font-display);
    font-weight: 400;
    line-height: 1.2;
    color: var(--charcoal);
}

/* ---- Section Tags ---- */
.section-tag {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--coral);
    background: var(--coral-pale);
    padding: 6px 14px;
    border-radius: 100px;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 16px;
}

.section-sub {
    font-size: 1.1rem;
    color: var(--charcoal-muted);
    max-width: 560px;
    line-height: 1.7;
}

.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-header .section-sub {
    margin: 0 auto;
}

/* ---- Buttons ---- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 600;
    padding: 14px 28px;
    border-radius: 100px;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-coral {
    background: var(--coral);
    color: var(--white);
    box-shadow: var(--shadow-coral);
}

.btn-coral:hover {
    background: var(--coral-dark);
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(232,115,90,0.35);
}

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

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

.btn-outline-light {
    background: transparent;
    color: var(--white);
    border: 1.5px solid rgba(255,255,255,0.5);
}

.btn-outline-light:hover {
    background: rgba(255,255,255,0.12);
    border-color: var(--white);
}

.btn-full {
    width: 100%;
}

/* ---- Header / Navigation ---- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(253, 248, 245, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(45,45,45,0.06);
    transition: var(--transition);
}

.site-header.scrolled {
    background: rgba(253, 248, 245, 0.95);
    box-shadow: var(--shadow-sm);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: var(--charcoal);
}

.logo-mark {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--coral);
    color: var(--white);
    border-radius: var(--radius-sm);
    font-size: 1.1rem;
    font-style: italic;
}

.nav-menu {
    display: none;
    align-items: center;
    gap: 32px;
}

.nav-menu a {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--charcoal-light);
    transition: var(--transition);
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--coral);
    border-radius: 2px;
    transition: var(--transition);
}

.nav-menu a:hover {
    color: var(--coral);
}

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

.nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.nav-toggle:hover {
    background: var(--sand-light);
}

.hamburger {
    position: relative;
    width: 20px;
    height: 14px;
    display: block;
}

.hamburger::before,
.hamburger::after,
.hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--charcoal);
    border-radius: 2px;
    transition: var(--transition);
    position: absolute;
    left: 0;
}

.hamburger::before { top: 0; }
.hamburger span { top: 6px; }
.hamburger::after { bottom: 0; }

.nav-toggle[aria-expanded="true"] .hamburger::before {
    transform: rotate(45deg);
    top: 6px;
}

.nav-toggle[aria-expanded="true"] .hamburger span {
    opacity: 0;
}

.nav-toggle[aria-expanded="true"] .hamburger::after {
    transform: rotate(-45deg);
    bottom: 6px;
}

@media (min-width: 1024px) {
    .nav-toggle {
        display: none;
    }
    .nav-menu {
        display: flex;
    }
}

/* Mobile menu */
.nav-menu.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(253, 248, 245, 0.98);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid rgba(45,45,45,0.06);
    box-shadow: var(--shadow-md);
}

.nav-menu.open a {
    font-size: 1.0625rem;
}

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

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

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

.hero-gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        rgba(45,45,45,0.3) 0%,
        rgba(45,45,45,0.1) 40%,
        rgba(45,45,45,0.5) 100%
    );
    z-index: 2;
}

.hero-scrim {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        rgba(45,45,45,0.4) 0%,
        rgba(45,45,45,0.2) 50%,
        rgba(45,45,45,0.7) 100%
    );
    z-index: 3;
}

.hero-content {
    position: relative;
    z-index: 4;
    text-align: center;
    max-width: 780px;
    padding: 120px 24px 80px;
}

.hero-tag {
    display: inline-block;
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--coral-light);
    background: rgba(232,115,90,0.15);
    border: 1px solid rgba(232,115,90,0.3);
    padding: 8px 18px;
    border-radius: 100px;
    margin-bottom: 28px;
}

.hero-headline {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    color: var(--white);
    line-height: 1.1;
    margin-bottom: 24px;
    font-style: italic;
}

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

.hero-sub {
    font-size: clamp(1rem, 1.5vw, 1.2rem);
    color: rgba(255,255,255,0.8);
    line-height: 1.8;
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

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

.hero-scroll {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 4;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255,255,255,0.5);
    font-size: 0.6875rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, rgba(255,255,255,0.5), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 1; transform: scaleY(1); }
    50% { opacity: 0.4; transform: scaleY(0.6); }
}

@media (max-width: 480px) {
    .hero-content {
        padding: 100px 20px 60px;
    }
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    .hero-actions .btn {
        width: 100%;
        max-width: 280px;
    }
}

/* ---- Features Strip ---- */
.features-strip {
    background: var(--white);
    border-top: 1px solid var(--sand);
    border-bottom: 1px solid var(--sand);
    padding: 48px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

@media (min-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
}

.feature-icon {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--coral-pale);
    border-radius: var(--radius-sm);
    color: var(--coral);
}

.feature-item strong {
    display: block;
    font-family: var(--font-display);
    font-size: 1.0625rem;
    color: var(--charcoal);
    margin-bottom: 2px;
}

.feature-item span {
    font-size: 0.875rem;
    color: var(--charcoal-muted);
    line-height: 1.5;
}

/* ---- Products ---- */
.products {
    padding: 100px 0;
    background: var(--cream);
}

.products-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

@media (min-width: 640px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .products-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.product-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.product-img-wrap {
    overflow: hidden;
    aspect-ratio: 3/2;
}

.product-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-card:hover .product-img-wrap img {
    transform: scale(1.06);
}

.product-body {
    padding: 24px;
}

.product-body h3 {
    font-size: 1.25rem;
    margin-bottom: 8px;
    color: var(--charcoal);
}

.product-body p {
    font-size: 0.9375rem;
    color: var(--charcoal-muted);
    line-height: 1.7;
}

/* ---- About ---- */
.about {
    padding: 100px 0;
    background: var(--off-white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 48px;
    align-items: center;
}

@media (min-width: 900px) {
    .about-grid {
        grid-template-columns: 1fr 1fr;
        gap: 64px;
    }
}

.about-images {
    position: relative;
}

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

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

.about-img-secondary {
    position: absolute;
    bottom: -32px;
    right: -16px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 4px solid var(--off-white);
}

@media (min-width: 900px) {
    .about-img-secondary {
        width: 55%;
    }
}

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

.about-content .section-title {
    margin-bottom: 24px;
}

.about-content p {
    color: var(--charcoal-muted);
    margin-bottom: 16px;
    font-size: 1.0625rem;
}

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

.stat {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 2rem;
    color: var(--coral);
    line-height: 1;
}

.stat-label {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--charcoal-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

/* ---- Testimonials ---- */
.testimonials {
    padding: 100px 0;
    background: var(--charcoal);
}

.testimonials .section-tag {
    background: rgba(232,115,90,0.15);
    color: var(--coral-light);
}

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

.testimonials-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

@media (min-width: 768px) {
    .testimonials-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.testimonial-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: var(--transition);
}

.testimonial-card:hover {
    background: rgba(255,255,255,0.08);
    transform: translateY(-4px);
}

.testimonial-quote {
    font-family: var(--font-display);
    font-size: 4rem;
    line-height: 1;
    color: var(--coral);
    margin-bottom: 8px;
}

.testimonial-text {
    font-size: 1.0625rem;
    color: rgba(255,255,255,0.8);
    line-height: 1.8;
    margin-bottom: 20px;
}

.testimonial-author {
    font-size: 0.875rem;
    color: rgba(255,255,255,0.4);
    font-style: italic;
}

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

.visit-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 48px;
    align-items: start;
}

@media (min-width: 900px) {
    .visit-grid {
        grid-template-columns: 1fr 1fr;
        gap: 56px;
    }
}

.visit-desc {
    font-size: 1.0625rem;
    color: var(--charcoal-muted);
    margin-bottom: 36px;
    line-height: 1.8;
}

.visit-details {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

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

.visit-icon {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--coral-pale);
    border-radius: var(--radius-sm);
    color: var(--coral);
}

.visit-detail strong {
    display: block;
    font-family: var(--font-display);
    font-size: 1.0625rem;
    color: var(--charcoal);
    margin-bottom: 4px;
}

.visit-detail span,
.visit-detail a {
    font-size: 0.9375rem;
    color: var(--charcoal-muted);
    line-height: 1.7;
}

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

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

/* ---- Contact ---- */
.contact {
    padding: 100px 0;
    background: var(--off-white);
}

.contact-inner {
    display: grid;
    grid-template-columns: 1fr;
    gap: 56px;
    align-items: start;
}

@media (min-width: 900px) {
    .contact-inner {
        grid-template-columns: 1fr 1fr;
        gap: 64px;
    }
}

.contact-text .section-title {
    margin-bottom: 16px;
}

.contact-text p {
    font-size: 1.0625rem;
    color: var(--charcoal-muted);
    line-height: 1.8;
}

.contact-form {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 40px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--sand);
}

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

@media (max-width: 480px) {
    .form-row {
        grid-template-columns: 1fr;
    }
    .contact-form {
        padding: 24px;
    }
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 16px;
}

.form-group label {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--charcoal);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.form-group input,
.form-group textarea {
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--charcoal);
    background: var(--cream);
    border: 1.5px solid var(--sand);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    transition: var(--transition);
    outline: none;
    width: 100%;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--charcoal-muted);
    opacity: 0.6;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--coral);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(232,115,90,0.1);
}

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

.form-success {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 16px;
    padding: 14px 18px;
    background: #E8F5E9;
    border: 1px solid #C8E6C9;
    border-radius: var(--radius-md);
    color: #2E7D32;
    font-size: 0.9375rem;
    font-weight: 500;
}

.form-success svg {
    flex-shrink: 0;
    color: #4CAF50;
}

/* ---- Footer ---- */
.site-footer {
    background: var(--charcoal);
    color: rgba(255,255,255,0.7);
    padding: 64px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    padding-bottom: 48px;
}

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

.footer-brand .logo {
    color: var(--white);
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 0.9375rem;
    line-height: 1.7;
    max-width: 300px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links strong {
    font-family: var(--font-display);
    font-size: 1.0625rem;
    color: var(--white);
    margin-bottom: 4px;
}

.footer-links a {
    font-size: 0.9375rem;
    color: rgba(255,255,255,0.6);
    transition: var(--transition);
}

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

.footer-contact strong {
    font-family: var(--font-display);
    font-size: 1.0625rem;
    color: var(--white);
    display: block;
    margin-bottom: 12px;
}

.footer-contact p {
    font-size: 0.9375rem;
    line-height: 1.7;
    margin-bottom: 4px;
}

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

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

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding: 24px 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 12px;
}

.footer-bottom p {
    font-size: 0.8125rem;
    color: rgba(255,255,255,0.4);
}

/* ---- Scroll Reveal (progressive enhancement) ---- */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(24px);
        transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
    .reveal-delay-1 { transition-delay: 0.1s; }
    .reveal-delay-2 { transition-delay: 0.2s; }
    .reveal-delay-3 { transition-delay: 0.3s; }
    .reveal-delay-4 { transition-delay: 0.4s; }
}

/* ---- Reduced motion ---- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
    html {
        scroll-behavior: auto;
    }
    .reveal {
        opacity: 1;
        transform: none;
    }
}