/* ============================================================
   Relanatur Landing Page - CSS
   Colori: #007079 (primario), #FFCE12 (CTA), #FFFFFF (bianco)
   ============================================================ */

:root {
    --primary: #007079;
    --primary-dark: #005a61;
    --primary-light: #e0f4f5;
    --cta: #FFCE12;
    --cta-hover: #e6b800;
    --white: #FFFFFF;
    --bg-light: #f8f9fa;
    --bg-form: #EFE6EB;
    --text-dark: #1a1a1a;
    --text-body: #333333;
    --text-muted: #666666;
    --border: #dee2e6;
    --shadow: 0 2px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
    --radius: 8px;
    --radius-lg: 16px;
    --transition: 0.3s ease;
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-body);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover, a:focus {
    color: var(--primary-dark);
}

h1, h2, h3, h4, h5, h6 {
    color: var(--text-dark);
    line-height: 1.3;
    font-weight: 700;
}

.container {
    width: 100%;
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ============================================================
   HEADER - Sticky
   ============================================================ */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--white);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: box-shadow var(--transition);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 20px;
    max-width: 1140px;
    margin: 0 auto;
}

.header-logo a {
    display: flex;
    align-items: center;
}

.header-logo img {
    height: 36px;
    width: auto;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-dark);
    margin: 5px 0;
    transition: var(--transition);
}

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

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

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

.main-nav {
    display: flex;
    align-items: center;
    gap: 8px;
}

.main-nav a {
    padding: 8px 14px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-body);
    border-radius: var(--radius);
    transition: background var(--transition), color var(--transition);
    white-space: nowrap;
}

.main-nav a:hover, .main-nav a:focus {
    background: var(--primary-light);
    color: var(--primary);
}

.btn-header-cta {
    background: var(--cta) !important;
    color: var(--text-dark) !important;
    font-weight: 700 !important;
    padding: 10px 20px !important;
    border-radius: 50px !important;
    box-shadow: 0 2px 8px rgba(255,206,18,0.4);
    transition: transform var(--transition), box-shadow var(--transition) !important;
}

.btn-header-cta:hover, .btn-header-cta:focus {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(255,206,18,0.5);
    background: var(--cta-hover) !important;
}

.mobile-cta {
    display: none;
}

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 60px 0 50px;
    position: relative;
    overflow: hidden;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -50px;
    left: 0;
    right: 0;
    height: 100px;
    background: var(--white);
    transform: skewY(-2deg);
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.hero-content h1 {
    font-size: 2.4rem;
    color: var(--white);
    margin-bottom: 16px;
    line-height: 1.2;
}

.hero-content h1 span {
    color: var(--cta);
}

.hero-subtitle {
    font-size: 1.15rem;
    margin-bottom: 20px;
    opacity: 0.95;
    line-height: 1.6;
}

.hero-benefits {
    list-style: none;
    margin-bottom: 24px;
}

.hero-benefits li {
    padding: 6px 0;
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.hero-benefits li::before {
    content: '✓';
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: var(--cta);
    color: var(--text-dark);
    border-radius: 50%;
    font-weight: 700;
    font-size: 0.8rem;
    flex-shrink: 0;
}

.hero-social-proof {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
    padding: 12px 16px;
    background: rgba(255,255,255,0.12);
    border-radius: var(--radius);
    backdrop-filter: blur(4px);
}

.hero-stars {
    color: var(--cta);
    font-size: 1.2rem;
    letter-spacing: 2px;
}

.hero-social-proof span {
    font-size: 0.9rem;
    opacity: 0.9;
}

.hero-image {
    text-align: center;
}

.hero-image img {
    max-width: 420px;
    margin: 0 auto;
    filter: drop-shadow(0 8px 24px rgba(0,0,0,0.3));
}

.hero-price {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: var(--cta);
    color: var(--text-dark);
    padding: 12px 24px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.hero-price .old-price {
    text-decoration: line-through;
    opacity: 0.6;
    font-weight: 400;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--cta);
    color: var(--text-dark);
    font-size: 1.1rem;
    font-weight: 700;
    padding: 16px 40px;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
    box-shadow: 0 4px 16px rgba(255,206,18,0.4);
    text-align: center;
    min-width: 220px;
    text-decoration: none;
}

.btn-cta:hover, .btn-cta:focus {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(255,206,18,0.5);
    background: var(--cta-hover);
    color: var(--text-dark);
}

.btn-cta:active {
    transform: translateY(0);
}

.cta-wrapper {
    text-align: center;
    margin: 24px 0;
}

.cta-subtext {
    display: block;
    text-align: center;
    margin-top: 8px;
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
}

.cta-subtext-white {
    color: rgba(255,255,255,0.8);
}

/* ============================================================
   SECTIONS
   ============================================================ */
section {
    padding: 60px 0;
}

.section-title {
    text-align: center;
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 12px;
}

.section-subtitle {
    text-align: center;
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.bg-light {
    background: var(--bg-light);
}

.bg-primary {
    background: var(--primary);
    color: var(--white);
}

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

.bg-primary .section-subtitle {
    color: rgba(255,255,255,0.85);
}

/* ============================================================
   FEATURES / BENEFITS GRID
   ============================================================ */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.feature-card {
    background: var(--white);
    padding: 30px 24px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    text-align: center;
    transition: transform var(--transition), box-shadow var(--transition);
}

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

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    background: var(--primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
}

.feature-card h3 {
    font-size: 1.15rem;
    margin-bottom: 10px;
    color: var(--primary);
}

.feature-card p {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* ============================================================
   HOW IT WORKS
   ============================================================ */
.how-it-works-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 30px;
    counter-reset: step;
}

.step-card {
    text-align: center;
    padding: 24px;
    position: relative;
}

.step-number {
    width: 48px;
    height: 48px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    font-weight: 700;
    margin: 0 auto 16px;
}

.step-card h3 {
    font-size: 1.05rem;
    margin-bottom: 8px;
    color: var(--primary);
}

.step-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* ============================================================
   INGREDIENTS
   ============================================================ */
.ingredients-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.ingredients-image img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.ingredient-list {
    list-style: none;
}

.ingredient-list li {
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.ingredient-list li:last-child {
    border-bottom: none;
}

.ingredient-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    font-size: 1rem;
    flex-shrink: 0;
}

.ingredient-info h4 {
    font-size: 1rem;
    color: var(--primary);
    margin-bottom: 4px;
}

.ingredient-info p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* ============================================================
   TESTIMONIALS
   ============================================================ */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.testimonial-card {
    background: var(--white);
    padding: 28px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    position: relative;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 16px;
    right: 24px;
    font-size: 4rem;
    color: var(--primary-light);
    font-family: Georgia, serif;
    line-height: 1;
}

.testimonial-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 14px;
}

.testimonial-avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--primary-light);
}

.testimonial-name {
    font-weight: 700;
    font-size: 1rem;
    color: var(--text-dark);
}

.testimonial-location {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.testimonial-stars {
    color: var(--cta);
    font-size: 0.9rem;
    letter-spacing: 2px;
}

.testimonial-text {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-body);
    font-style: italic;
}

.rating-summary {
    text-align: center;
    padding: 24px;
    background: var(--primary-light);
    border-radius: var(--radius-lg);
    margin-bottom: 30px;
}

.rating-summary .stars-large {
    font-size: 2rem;
    color: var(--cta);
    letter-spacing: 4px;
    margin-bottom: 8px;
}

.rating-summary .rating-text {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary);
}

/* ============================================================
   ORDER FORM
   ============================================================ */
.order-section {
    padding: 50px 0;
    background: var(--bg-light);
}

.order-form-wrapper {
    max-width: 520px;
    margin: 0 auto;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 36px 32px;
}

.form-header {
    text-align: center;
    margin-bottom: 24px;
}

.form-header img {
    max-width: 140px;
    margin: 0 auto 16px;
}

.form-header h3 {
    font-size: 1.2rem;
    color: var(--primary);
    margin-bottom: 8px;
}

.form-header p {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.5;
}

.form-header .price-highlight {
    font-weight: 700;
    color: var(--primary);
    font-size: 1.1rem;
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 6px;
}

.form-group input {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-size: 1rem;
    font-family: inherit;
    transition: border-color var(--transition), box-shadow var(--transition);
    background: var(--white);
    color: var(--text-dark);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0,112,121,0.15);
}

.form-group input.error {
    border-color: #dc3545;
}

.form-group .error-message {
    display: none;
    font-size: 0.8rem;
    color: #dc3545;
    margin-top: 4px;
    font-weight: 500;
}

.form-group input.error + .error-message {
    display: block;
}

.form-row {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 12px;
}

.btn-submit {
    width: 100%;
    background: var(--cta);
    color: var(--text-dark);
    font-size: 1.15rem;
    font-weight: 700;
    padding: 16px 24px;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
    box-shadow: 0 4px 16px rgba(255,206,18,0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 8px;
}

.btn-submit:hover, .btn-submit:focus {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(255,206,18,0.5);
    background: var(--cta-hover);
}

.btn-submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.spinner {
    display: none;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(0,0,0,0.2);
    border-top-color: var(--text-dark);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.btn-submit.loading .spinner {
    display: block;
}

.btn-submit.loading .btn-text {
    display: none;
}

.form-privacy {
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 12px;
}

.form-privacy a {
    color: var(--primary);
    text-decoration: underline;
}

.trust-badges {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

.trust-badge {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

.trust-badge-icon {
    font-size: 1.2rem;
}

/* ============================================================
   WHERE TO BUY
   ============================================================ */
.where-to-buy-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.where-to-buy-content p {
    font-size: 1.05rem;
    line-height: 1.7;
    margin-bottom: 16px;
}

.where-badges {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    margin: 24px 0;
}

.where-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: var(--white);
    border-radius: 50px;
    box-shadow: var(--shadow);
    font-weight: 600;
    font-size: 0.9rem;
}

/* ============================================================
   USAGE
   ============================================================ */
.usage-content {
    max-width: 800px;
    margin: 0 auto;
}

.usage-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    align-items: center;
}

.usage-steps {
    list-style: none;
    counter-reset: usage;
}

.usage-steps li {
    padding: 12px 0;
    display: flex;
    gap: 12px;
    align-items: flex-start;
    font-size: 1rem;
}

.usage-steps li::before {
    counter-increment: usage;
    content: counter(usage);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    font-weight: 700;
    font-size: 0.9rem;
    flex-shrink: 0;
}

/* ============================================================
   FAQ
   ============================================================ */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 12px;
    overflow: hidden;
    background: var(--white);
}

.faq-question {
    width: 100%;
    background: none;
    border: none;
    padding: 18px 20px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-dark);
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: inherit;
    transition: background var(--transition);
}

.faq-question:hover {
    background: var(--bg-light);
}

.faq-question::after {
    content: '+';
    font-size: 1.4rem;
    font-weight: 300;
    color: var(--primary);
    transition: transform var(--transition);
    flex-shrink: 0;
    margin-left: 12px;
}

.faq-item.active .faq-question::after {
    content: '−';
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer-inner {
    padding: 0 20px 18px;
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ============================================================
   SIDE EFFECTS / WARNINGS
   ============================================================ */
.warnings-content {
    max-width: 800px;
    margin: 0 auto;
}

.warning-box {
    background: #fff3cd;
    border: 1px solid #ffc107;
    border-radius: var(--radius);
    padding: 20px 24px;
    margin-bottom: 16px;
}

.warning-box p {
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
    background: var(--primary-dark);
    color: rgba(255,255,255,0.85);
    padding: 40px 0 20px;
}

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

.site-footer a:hover,
.site-footer a:focus {
    color: var(--white);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 30px;
}

.footer-links h4 {
    color: var(--white);
    font-size: 1rem;
    margin-bottom: 12px;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 8px;
}

.footer-links a {
    color: rgba(255,255,255,0.7);
    font-size: 0.9rem;
    transition: color var(--transition);
}

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

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.15);
    padding-top: 20px;
    text-align: center;
}

.footer-disclaimer {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.6);
    line-height: 1.6;
    max-width: 800px;
    margin: 0 auto;
}

/* ============================================================
   SECONDARY PAGES
   ============================================================ */
.page-content {
    padding: 100px 0 60px;
    min-height: 60vh;
}

.page-content h1 {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 24px;
}

.page-content h2 {
    font-size: 1.4rem;
    color: var(--primary);
    margin-top: 30px;
    margin-bottom: 12px;
}

.page-content p {
    margin-bottom: 14px;
    line-height: 1.7;
}

.page-content ul, .page-content ol {
    margin-bottom: 14px;
    padding-left: 24px;
}

.page-content li {
    margin-bottom: 8px;
    line-height: 1.6;
}

/* ============================================================
   THANK YOU PAGE
   ============================================================ */
.thank-you-section {
    text-align: center;
    padding: 100px 0 80px;
    min-height: 60vh;
    display: flex;
    align-items: center;
}

.thank-you-icon {
    font-size: 4rem;
    margin-bottom: 20px;
}

.thank-you-section h1 {
    color: var(--primary);
    font-size: 2.2rem;
    margin-bottom: 16px;
}

.thank-you-section p {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 24px;
    line-height: 1.6;
}

/* ============================================================
   CONTACT FORM
   ============================================================ */
.contact-form-wrapper {
    max-width: 600px;
    margin: 0 auto;
    background: var(--white);
    padding: 36px 32px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.contact-form-wrapper textarea {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-size: 1rem;
    font-family: inherit;
    min-height: 120px;
    resize: vertical;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.contact-form-wrapper textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0,112,121,0.15);
}

.contact-form-wrapper textarea.error {
    border-color: #dc3545;
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 18px;
}

.checkbox-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-top: 2px;
    flex-shrink: 0;
    accent-color: var(--primary);
}

.checkbox-group label {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.4;
}

.checkbox-group .error-message {
    display: none;
    font-size: 0.8rem;
    color: #dc3545;
    margin-top: 4px;
}

/* ============================================================
   HOW TO ORDER SECTION
   ============================================================ */
.order-steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
    max-width: 900px;
    margin: 0 auto;
}

.order-step {
    text-align: center;
    padding: 24px 16px;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.order-step-icon {
    font-size: 2.5rem;
    margin-bottom: 12px;
}

.order-step h3 {
    font-size: 1rem;
    color: var(--primary);
    margin-bottom: 8px;
}

.order-step p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 992px) {
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-image {
        order: -1;
    }

    .hero-image img {
        max-width: 300px;
    }

    .hero-benefits {
        display: inline-block;
        text-align: left;
    }

    .hero-social-proof {
        justify-content: center;
    }

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

    .ingredients-image {
        text-align: center;
    }

    .ingredients-image img {
        max-width: 400px;
        margin: 0 auto;
    }

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

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

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

    .main-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        padding: 80px 24px 24px;
        box-shadow: -4px 0 16px rgba(0,0,0,0.1);
        transition: right var(--transition);
        z-index: 999;
        align-items: stretch;
    }

    .main-nav.open {
        right: 0;
    }

    .main-nav a {
        padding: 12px 16px;
        font-size: 1rem;
        border-bottom: 1px solid var(--border);
    }

    .main-nav .btn-header-cta {
        border-bottom: none !important;
        text-align: center;
        margin-top: 12px;
    }

    .mobile-cta {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        background: var(--cta);
        color: var(--text-dark);
        font-weight: 700;
        font-size: 0.85rem;
        padding: 8px 16px;
        border-radius: 50px;
        white-space: nowrap;
        box-shadow: 0 2px 8px rgba(255,206,18,0.3);
        text-decoration: none;
    }

    .mobile-cta:hover {
        background: var(--cta-hover);
        color: var(--text-dark);
    }

    .hero {
        padding: 40px 0 40px;
    }

    .hero-content h1 {
        font-size: 1.8rem;
    }

    .section-title {
        font-size: 1.6rem;
    }

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

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

    .form-row {
        grid-template-columns: 1fr;
    }

    .order-form-wrapper {
        padding: 28px 20px;
    }

    .trust-badges {
        flex-direction: column;
        align-items: center;
    }

    .where-badges {
        flex-direction: column;
        align-items: center;
    }

    section {
        padding: 40px 0;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 1.5rem;
    }

    .hero-image img {
        max-width: 240px;
    }

    .btn-cta {
        padding: 14px 28px;
        font-size: 1rem;
        min-width: 180px;
    }

    .container {
        padding: 0 16px;
    }
}

/* ============================================================
   ACCESSIBILITY
   ============================================================ */
:focus-visible {
    outline: 3px solid var(--primary);
    outline-offset: 2px;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border: 0;
}

/* Skip to content link */
.skip-link {
    position: absolute;
    top: -100%;
    left: 16px;
    background: var(--primary);
    color: var(--white);
    padding: 12px 24px;
    border-radius: var(--radius);
    z-index: 10000;
    font-weight: 600;
}

.skip-link:focus {
    top: 16px;
}

/* Overlay for mobile menu */
.nav-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.4);
    z-index: 998;
}

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