/* ===== RESET & VARIABLES ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }

/* Skip link for keyboard users */
.skip-link {
    position: absolute;
    top: -100%;
    left: 16px;
    background: var(--primary);
    color: #fff;
    padding: 12px 24px;
    border-radius: 8px;
    z-index: 9999;
    font-weight: 600;
    font-size: 14px;
    transition: top 0.3s;
}
.skip-link:focus { top: 16px; }

:root {
    --primary: #7c3aed;
    --primary-light: #a78bfa;
    --primary-dark: #5b21b6;
    --accent: #f59e0b;
    --bg: #fafafa;
    --bg-alt: #f3f0ff;
    --bg-card: #ffffff;
    --text: #111827;
    --text-muted: #6b7280;
    --border: rgba(124, 58, 237, 0.08);
    --nav-bg: rgba(255, 255, 255, 0.7);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.04), 0 10px 15px rgba(124,58,237,0.06);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.05), 0 20px 48px rgba(124,58,237,0.1);
    --shadow-xl: 0 25px 50px rgba(124,58,237,0.15);
    --radius: 20px;
    --radius-lg: 28px;
    --radius-full: 9999px;
    --transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

[data-theme="dark"] {
    --bg: #09090b;
    --bg-alt: #18181b;
    --bg-card: #1c1c22;
    --text: #f4f4f5;
    --text-muted: #a1a1aa;
    --border: rgba(124, 58, 237, 0.15);
    --nav-bg: rgba(9, 9, 11, 0.8);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.2);
    --shadow-md: 0 4px 15px rgba(0,0,0,0.3);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.4);
    --shadow-xl: 0 25px 50px rgba(0,0,0,0.5);
}

/* ===== BASE ===== */
html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
    font-family: 'Poppins', sans-serif;
    color: var(--text);
    background: var(--bg);
    transition: background var(--transition), color var(--transition);
    overflow-x: hidden;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    padding-top: 0;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; display: block; }


/* ===== THEME TOGGLE ===== */
.theme-toggle {
    position: fixed;
    bottom: 32px;
    left: 32px;
    z-index: 200;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition);
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(12px);
}

.theme-toggle:hover { transform: scale(1.1) rotate(20deg); box-shadow: var(--shadow-lg); }
.theme-toggle svg { width: 18px; height: 18px; fill: var(--text); transition: fill var(--transition); }
.theme-toggle .icon-moon { display: block; }
.theme-toggle .icon-sun { display: none; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
[data-theme="dark"] .theme-toggle .icon-sun { display: block; }

/* ===== NAVIGATION ===== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background: var(--nav-bg);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border-bottom: 1px solid var(--border);
    border-radius: 0;
    padding: 14px 48px;
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), box-shadow var(--transition), background var(--transition);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 15px;
    color: var(--primary);
    white-space: nowrap;
    margin: 0 24px;
}

.nav-logo img { width: 28px; height: 28px; object-fit: contain; }

.nav-links { display: flex; gap: 6px; align-items: center; }

.nav-links a {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-muted);
    padding: 8px 14px;
    border-radius: var(--radius-full);
    transition: all var(--transition);
}

.nav-links a:hover { color: var(--primary); background: rgba(124, 58, 237, 0.06); }
.nav-links a.active { color: var(--primary); background: rgba(124, 58, 237, 0.1); font-weight: 600; }

.nav-links .btn-outline {
    border: 1.5px solid var(--primary);
    padding: 8px 18px;
    color: var(--primary);
    font-weight: 600;
    transition: all var(--transition);
}

.nav-links .btn-outline:hover {
    background: var(--primary);
    color: #fff;
    transform: scale(1.02);
}

.hamburger { display: none; }
.mobile-menu { display: none; }

/* ===== BUTTONS ===== */
.btn-primary {
    background: var(--primary);
    color: #fff;
    border-radius: 12px;
    padding: 14px 28px;
    font-weight: 600;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all var(--transition);
    box-shadow: 0 4px 14px rgba(124, 58, 237, 0.3);
    position: relative;
    overflow: hidden;
}

.btn-primary::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, transparent, rgba(255,255,255,0.15), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s;
}

.btn-primary:hover::after { transform: translateX(100%); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(124, 58, 237, 0.4); }
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border: 1.5px solid var(--border);
    border-radius: 12px;
    font-weight: 600;
    font-size: 14px;
    color: var(--text);
    transition: all var(--transition);
    background: var(--bg-card);
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
    box-shadow: var(--shadow-sm);
}

/* Product Price */
.product-price {
    font-size: 32px;
    font-weight: 800;
    color: var(--text);
    letter-spacing: -1px;
    font-family: 'Montserrat', sans-serif;
}

.product-action {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-top: 28px;
    flex-wrap: wrap;
}

/* ===== HERO ===== */
.hero {
    padding: 130px 40px 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 80px;
    max-width: 1280px;
    margin: 0 auto;
    min-height: 100vh;
}

.hero-content { max-width: 520px; }

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    padding: 8px 18px;
    font-size: 13px;
    font-weight: 500;
    color: var(--primary);
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
}

.hero-badge svg { width: 16px; height: 16px; }

.hero h1 {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 18px;
    letter-spacing: -0.03em;
    font-family: 'Montserrat', sans-serif;
}

.hero h1 span {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 16px;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 28px;
}

.hero-cta {
    display: flex;
    gap: 12px;
    margin-bottom: 28px;
    flex-wrap: wrap;
}

.trust-badges {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.trust-badges span {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-muted);
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 6px 12px;
    border-radius: var(--radius-full);
}

.hero-image {
    position: relative;
    width: 440px;
    height: 440px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.hero-image .glow {
    position: absolute;
    width: 340px;
    height: 340px;
    background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
    opacity: 0.1;
    border-radius: 50%;
    animation: pulse 5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.1; }
    50% { transform: scale(1.1); opacity: 0.18; }
}

.hero-image > img {
    position: relative;
    z-index: 1;
    width: 300px;
    height: 300px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    animation: floatImage 4s ease-in-out infinite;
}

.hero-float {
    position: absolute;
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 12px 16px;
    font-size: 11px;
    color: var(--text);
    box-shadow: var(--shadow-md);
    z-index: 2;
    animation: floatCard 5s ease-in-out infinite;
}

.hero-float.top-left { top: 50px; left: 0; animation-delay: 0s; }
.hero-float.bottom-right { bottom: 60px; right: -20px; animation-delay: 2.5s; }

@keyframes floatCard {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.hero-float strong { display: block; font-size: 12px; font-weight: 600; margin-bottom: 2px; color: var(--primary); }

/* ===== SECTIONS COMMON ===== */
.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    padding: 8px 18px;
    font-size: 13px;
    font-weight: 500;
    color: var(--primary);
    margin-bottom: 14px;
    box-shadow: var(--shadow-sm);
}

.section-header { text-align: center; margin-bottom: 48px; }

.section-header h2 {
    font-size: 36px;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.02em;
    font-family: 'Montserrat', sans-serif;
}

.section-subtitle {
    font-size: 15px;
    color: var(--text-muted);
    margin-top: 10px;
}

/* ===== PRODUCTS OVERVIEW ===== */
.products-overview {
    padding: 100px 40px 40px;
    background: var(--bg);
}

/* ===== PRODUCT SECTIONS ===== */
.product-section {
    padding: 80px 40px;
    transition: background var(--transition);
}

.product-section:nth-child(odd) { background: var(--bg); }
.product-section:nth-child(even) { background: var(--bg-alt); }

.product-hero {
    display: flex;
    gap: 70px;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.product-hero.reverse { flex-direction: row-reverse; }

.product-content { flex: 1; }

.product-content h2 {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 14px;
    font-family: 'Montserrat', sans-serif;
    letter-spacing: -0.02em;
}

.product-content h2 span {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.product-content h2.orange-gradient span {
    background: linear-gradient(135deg, #f59e0b, #ea580c);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.product-content h2.blue-gradient span {
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.product-content h2.steel-gradient span {
    background: linear-gradient(135deg, #06b6d4, #0284c7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.product-content h2.green-gradient span {
    background: linear-gradient(135deg, #10b981, #047857);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.glutastem-tags span {
    background: rgba(16, 185, 129, 0.08);
    border: 1px solid rgba(16, 185, 129, 0.25);
    color: #059669;
}

.glutastem-detail[open] {
    border-color: rgba(16, 185, 129, 0.3);
}

.glutastem-detail summary::after {
    color: #059669;
}

.product-content h2.teal-gradient span {
    background: linear-gradient(135deg, #22c55e, #15803d);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.ultracrisp-tags span {
    background: rgba(34, 197, 94, 0.08);
    border: 1px solid rgba(34, 197, 94, 0.25);
    color: #16a34a;
}

.ultracrisp-detail[open] {
    border-color: rgba(34, 197, 94, 0.3);
}

.ultracrisp-detail summary::after {
    color: #16a34a;
}

.product-content > p {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 20px;
}

.product-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px 16px;
    list-style: none;
}

.product-features .benefit-item {
    font-size: 13px;
    color: var(--text-muted);
    padding: 6px 0;
    transition: color var(--transition);
}

.product-features .benefit-item:hover { color: var(--text); }

.ingredient-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 18px;
}

.ingredient-tags span {
    background: rgba(245, 158, 11, 0.08);
    border: 1px solid rgba(245, 158, 11, 0.25);
    border-radius: var(--radius-full);
    padding: 5px 14px;
    font-size: 11px;
    font-weight: 600;
    color: #d97706;
}

/* Product Details Expandable */
.product-details {
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.product-detail-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    transition: all var(--transition);
}

.product-detail-item[open] {
    box-shadow: var(--shadow-md);
    border-color: rgba(245, 166, 35, 0.3);
}

.product-detail-item summary {
    padding: 14px 18px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.product-detail-item summary::-webkit-details-marker { display: none; }

.product-detail-item summary::after {
    content: '+';
    font-size: 18px;
    font-weight: 300;
    color: #f5a623;
    transition: transform var(--transition);
}

.product-detail-item[open] summary::after {
    content: '\2212';
}

.product-detail-item p {
    padding: 0 18px 16px;
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.7;
}

.product-detail-item .detail-list {
    padding: 0 18px 16px;
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.product-detail-item .detail-list li {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.7;
}

.product-detail-item .detail-list li strong {
    color: var(--text);
}

.ominivision-detail[open] {
    border-color: rgba(70, 130, 180, 0.3);
}

.ominivision-detail summary::after {
    color: #4682b4;
}

.product-image {
    flex: 1;
    max-width: 460px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    transition: transform var(--transition);
    animation: floatImage 4s ease-in-out infinite;
}

.product-image:hover { transform: scale(1.02); animation-play-state: paused; }

@keyframes floatImage {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

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

/* Product Video Testimonial */
.product-video {
    margin-top: 28px;
}

.product-video h4 {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.product-video video {
    width: 100%;
    max-width: 360px;
    border-radius: 14px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    display: block;
}

/* Product Testimonial Strip */
.product-testimonial {
    padding: 40px;
    background: var(--bg-alt);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    transition: background var(--transition);
}

.testimonial-quote {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.testimonial-quote .stars {
    color: var(--accent);
    font-size: 18px;
    letter-spacing: 3px;
    margin-bottom: 14px;
}

.testimonial-quote p {
    font-size: 16px;
    font-style: italic;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 18px;
}

.testimonial-quote .author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
}

.testimonial-quote .author img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary);
}

.testimonial-quote .author span {
    font-size: 13px;
}

/* ===== WHY US ===== */
.why-us {
    padding: 100px 40px;
    background: var(--bg-alt);
    transition: background var(--transition);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.why-card {
    text-align: center;
    padding: 36px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all var(--transition);
}

.why-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(124, 58, 237, 0.2);
}

.why-icon { font-size: 32px; margin-bottom: 14px; }

.why-card h3 {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text);
}

.why-card p { font-size: 13px; color: var(--text-muted); line-height: 1.6; }

/* ===== HOW TO ORDER ===== */
.how-to-order {
    padding: 100px 40px;
    background: var(--bg);
    transition: background var(--transition);
}

.steps-grid {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    max-width: 900px;
    margin: 0 auto 32px;
}

.step-card {
    flex: 1;
    text-align: center;
    padding: 32px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all var(--transition);
}

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

.step-num {
    width: 40px;
    height: 40px;
    background: var(--primary);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 16px;
    margin: 0 auto 14px;
}

.step-card h3 {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--text);
}

.step-card p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.6;
}

.step-arrow {
    font-size: 24px;
    color: var(--primary);
    font-weight: 700;
}

.payment-methods {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.payment-methods span {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    padding: 8px 18px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text);
}


/* ===== TESTIMONIALS ===== */
.testimonials {
    padding: 100px 40px;
    text-align: center;
    background: var(--bg);
    transition: background var(--transition);
}

.testimonials h2 {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 48px;
    font-family: 'Montserrat', sans-serif;
    letter-spacing: -0.02em;
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    max-width: 1100px;
    margin: 0 auto;
}

.testimonial-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 32px 24px;
    text-align: left;
    border: 1px solid var(--border);
    transition: all var(--transition);
    position: relative;
}

.testimonial-card::after {
    content: '\201C';
    position: absolute;
    top: 12px;
    right: 20px;
    font-size: 72px;
    font-family: Georgia, serif;
    color: var(--primary);
    opacity: 0.06;
    line-height: 1;
    pointer-events: none;
}

.testimonial-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(124, 58, 237, 0.2);
}

.testimonial-card .stars { color: var(--accent); margin-bottom: 16px; font-size: 16px; letter-spacing: 2px; }

.testimonial-card video {
    width: 100%;
    border-radius: 12px;
    margin-bottom: 16px;
    border: 1px solid var(--border);
}

.testimonial-card p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 20px;
    font-style: italic;
}

.testimonial-card .author {
    font-weight: 600;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text);
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.testimonial-card .author img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary);
}

/* ===== FINAL CTA ===== */
.final-cta {
    padding: 120px 40px;
    text-align: center;
    background: var(--bg-alt);
    position: relative;
    overflow: hidden;
    transition: background var(--transition);
}

.final-cta::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
    opacity: 0.04;
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.final-cta h2 {
    font-size: 38px;
    font-weight: 800;
    margin-bottom: 14px;
    position: relative;
    font-family: 'Montserrat', sans-serif;
    letter-spacing: -0.02em;
}

.final-cta p {
    font-size: 16px;
    color: var(--text-muted);
    line-height: 1.7;
    max-width: 480px;
    margin: 0 auto 32px;
    position: relative;
}

.final-cta-buttons {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    position: relative;
}

/* ===== FOOTER ===== */
.footer {
    padding: 56px 60px;
    max-width: 1300px;
    margin: 0 auto;
    background: var(--bg);
    transition: background var(--transition);
}

.footer-top { display: flex; gap: 60px; margin-bottom: 40px; }

.footer-brand { max-width: 300px; }
.footer-brand img { margin-bottom: 10px; }

.footer-brand h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 10px;
}

.footer-brand p { font-size: 13px; color: var(--text-muted); line-height: 1.7; }

.footer-links { display: flex; gap: 56px; margin-left: auto; }
.footer-links div h4 { font-size: 13px; font-weight: 700; margin-bottom: 14px; color: var(--text); text-transform: uppercase; letter-spacing: 0.05em; }

.footer-links div a {
    display: block;
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 10px;
    transition: color var(--transition);
}

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

.footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: 20px;
    text-align: center;
    font-size: 12px;
    color: var(--text-muted);
}

/* ===== WHATSAPP FLOAT ===== */
.whatsapp {
    position: fixed;
    bottom: 32px;
    right: 32px;
    z-index: 100;
    width: 52px;
    height: 52px;
    animation: whatsappBounce 3s ease-in-out infinite;
}

.whatsapp:hover { animation-play-state: paused; transform: scale(1.15); }

.whatsapp img {
    width: 100%;
    border-radius: 50%;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.35);
}

@keyframes whatsappBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

/* ===== FOCUS STYLES - ACCESSIBILITY ===== */
a:focus-visible, button:focus-visible {
    outline: 3px solid var(--primary);
    outline-offset: 3px;
    border-radius: 4px;
}

/* ===== PREFERS REDUCED MOTION ===== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    .hero-image > img,
    .product-image,
    .whatsapp,
    .hero-float {
        animation: none !important;
    }
}

/* ===== CONTENT VISIBILITY - PERFORMANCE ===== */
.why-us, .how-to-order, .testimonials, .final-cta {
    content-visibility: auto;
    contain-intrinsic-size: auto 600px;
}

/* ===== RESPONSIVE - TABLET ===== */
@media (max-width: 1024px) {
    .hero { flex-direction: column; text-align: center; padding: 110px 24px 60px; gap: 40px; min-height: auto; }
    .hero-content { max-width: 100%; }
    .hero h1 { font-size: 36px; }
    .hero-cta { justify-content: center; }
    .trust-badges { justify-content: center; }
    .hero-image { width: 100%; height: 360px; }
    .hero-float.top-left { top: 20px; left: 20px; }
    .hero-float.bottom-right { bottom: 20px; right: 20px; }
    .products-overview { padding: 80px 24px 30px; }
    .product-section { padding: 60px 24px; }
    .product-hero, .product-hero.reverse { flex-direction: column; gap: 40px; }
    .procell-section .product-image { order: -1; }
    .glutastem-section .product-image { order: -1; }
    .product-image { max-width: 100%; }
    .product-content h2 { font-size: 30px; }
    .why-us { padding: 80px 24px; }
    .why-grid { grid-template-columns: repeat(2, 1fr); }
    .testimonials { padding: 80px 24px; }
    .testimonial-grid { grid-template-columns: 1fr; }
    .footer { padding: 40px 24px; }
    .footer-top { flex-direction: column; }
    .footer-links { margin-left: 0; }
    .steps-grid { flex-direction: column; }
    .step-arrow { transform: rotate(90deg); }
    .how-to-order { padding: 80px 24px; }

    .section-header h2, .testimonials h2, .final-cta h2 { font-size: 30px; }
    .theme-toggle { bottom: 20px; left: 20px; }
    .whatsapp { bottom: 20px; right: 20px; width: 48px; height: 48px; }
}

/* ===== RESPONSIVE - MOBILE ===== */
@media (max-width: 600px) {
    .nav { padding: 10px 16px; gap: 0; justify-content: space-between; width: 100%; top: 0; }
    .nav-links.left, .nav-links.right { display: none; }
    .nav-logo { font-size: 13px; margin: 0; }
    .nav-logo img { width: 24px; height: 24px; }

    .hamburger {
        display: flex;
        flex-direction: column;
        gap: 5px;
        cursor: pointer;
        z-index: 101;
        padding: 8px;
    }

    .hamburger span {
        width: 20px;
        height: 2.5px;
        background: var(--text);
        border-radius: 2px;
        transition: var(--transition);
    }

    [data-theme="dark"] .hamburger span {
        background: #fff;
    }

    .mobile-menu {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: var(--bg);
        z-index: 99;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 24px;
    }

    .mobile-menu.active { display: flex; }

    .mobile-menu a {
        font-family: 'Montserrat', sans-serif;
        font-size: 18px;
        font-weight: 600;
        color: var(--text);
        padding: 10px 20px;
        border-radius: 12px;
        transition: all var(--transition);
    }

    .mobile-menu a:hover { color: var(--primary); background: rgba(124, 58, 237, 0.06); }
    .mobile-menu .btn-outline { border: 1.5px solid var(--primary); color: var(--primary); }

    .hero { padding: 90px 16px 40px; gap: 28px; }
    .hero h1 { font-size: 30px; }
    .hero p { font-size: 14px; margin-bottom: 20px; }
    .hero-badge { font-size: 11px; padding: 6px 14px; }
    .hero-image { width: 100%; height: 280px; }
    .hero-image > img { width: 220px; height: 220px; }
    .hero-image .glow { width: 200px; height: 200px; }
    .hero-float { font-size: 10px; padding: 8px 12px; }
    .hero-cta { flex-direction: column; align-items: center; }
    .trust-badges { flex-direction: column; align-items: center; gap: 8px; }

    .products-overview { padding: 60px 16px 16px; }
    .product-section { padding: 48px 16px; }
    .product-content h2 { font-size: 26px; }
    .product-features { grid-template-columns: 1fr; }
    .product-action { flex-direction: column; align-items: flex-start; }

    .why-us { padding: 60px 16px; }
    .why-grid { grid-template-columns: 1fr; gap: 14px; }
    .why-card { padding: 24px 16px; }

    .product-testimonial { padding: 28px 16px; }
    .testimonial-quote p { font-size: 14px; }

    .testimonials { padding: 60px 16px; }
    .testimonial-card { padding: 24px 20px; }

    .how-to-order { padding: 60px 16px; }
    .steps-grid { flex-direction: column; gap: 12px; }
    .step-arrow { transform: rotate(90deg); font-size: 18px; }
    .payment-methods { flex-direction: column; align-items: center; }

    .final-cta { padding: 80px 16px; }
    .final-cta h2 { font-size: 26px; }
    .final-cta-buttons { flex-direction: column; align-items: center; }

    .footer { padding: 32px 16px; }
    .footer-links { flex-direction: column; gap: 24px; }

    .theme-toggle { bottom: 16px; left: 16px; width: 38px; height: 38px; }
    .theme-toggle svg { width: 16px; height: 16px; }
    .whatsapp { bottom: 16px; right: 16px; width: 44px; height: 44px; }
    .btn-primary, .btn-secondary { padding: 12px 22px; font-size: 13px; width: 100%; justify-content: center; }
}