/* ===== DIAFORMRX - CSS STYLES ===== */
/* Color scheme: Medical Red/Blue */

:root {
    --color-primary: #C62828;
    --color-primary-dark: #8E0000;
    --color-primary-light: #FF5F52;
    --color-secondary: #1565C0;
    --color-secondary-dark: #003C8F;
    --color-accent: #E53935;
    --color-dark: #1a1a2e;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-white: #FFFFFF;
    --color-light: #f8f9fa;
    --color-light-alt: #e8eef5;
    --color-success: #2e7d32;
    --color-warning: #f9a825;
    --color-danger: #c62828;
    
    --font-primary: 'Montserrat', sans-serif;
    --font-secondary: 'Open Sans', sans-serif;
    
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.15);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.2);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    
    --transition: all 0.3s ease;
}

/* ===== RESET ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-secondary); font-size: 16px; line-height: 1.6; color: var(--color-text); background-color: var(--color-white); }
h1, h2, h3, h4, h5, h6 { font-family: var(--font-primary); font-weight: 700; line-height: 1.2; color: var(--color-dark); }
a { color: var(--color-primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--color-primary-dark); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

/* ===== CONTAINER ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 1rem; }

/* ===== BUTTONS ===== */
.btn { display: inline-block; padding: 14px 32px; font-family: var(--font-primary); font-size: 1rem; font-weight: 600; text-align: center; border: none; border-radius: var(--radius-md); cursor: pointer; transition: var(--transition); }
.btn--primary { background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%); color: var(--color-white); box-shadow: 0 4px 15px rgba(198, 40, 40, 0.4); }
.btn--primary:hover { background: linear-gradient(135deg, var(--color-primary-dark) 0%, #5a0000 100%); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(198, 40, 40, 0.5); color: var(--color-white); }
.btn--secondary { background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-dark) 100%); color: var(--color-white); box-shadow: 0 4px 15px rgba(21, 101, 192, 0.4); }
.btn--secondary:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(21, 101, 192, 0.5); color: var(--color-white); }
.btn--large { padding: 18px 40px; font-size: 1.1rem; }

/* ===== HEADER ===== */
.header { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; background: var(--color-white); box-shadow: var(--shadow-sm); height: 70px; }
.header__inner { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.logo { display: flex; align-items: center; gap: 8px; font-family: var(--font-primary); font-size: 1.5rem; font-weight: 800; color: var(--color-primary); }
.logo__icon { font-size: 1.8rem; }
.nav__list { display: flex; gap: 1.5rem; align-items: center; }
.nav__link { font-family: var(--font-primary); font-weight: 500; color: var(--color-text); padding: 8px 0; position: relative; }
.nav__link::after { content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px; background: var(--color-primary); transition: var(--transition); }
.nav__link:hover::after { width: 100%; }
.nav__link--cta { background: var(--color-primary); color: var(--color-white); padding: 10px 20px; border-radius: var(--radius-sm); }
.nav__link--cta:hover { background: var(--color-primary-dark); color: var(--color-white); }
.nav__link--cta::after { display: none; }

/* Lang Switcher */
.lang-switcher { display: flex; gap: 8px; margin-left: 1rem; }
.lang-switcher__link { font-family: var(--font-primary); font-size: 0.85rem; font-weight: 600; color: var(--color-text-light); padding: 4px 8px; border-radius: 4px; transition: var(--transition); }
.lang-switcher__link:hover { color: var(--color-primary); background: var(--color-light); }
.lang-switcher__link--active { color: var(--color-white); background: var(--color-primary); }
.lang-switcher__link--active:hover { color: var(--color-white); background: var(--color-primary-dark); }

.burger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 5px; }
.burger span { display: block; width: 25px; height: 3px; background: var(--color-dark); border-radius: 2px; transition: var(--transition); }

/* ===== HERO SECTION ===== */
.hero { padding: 120px 0 60px; background: linear-gradient(135deg, var(--color-light) 0%, var(--color-white) 50%, var(--color-light-alt) 100%); }
.hero__inner { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; }
.hero__badge { display: inline-block; background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%); color: var(--color-white); padding: 8px 16px; border-radius: 50px; font-size: 0.85rem; font-weight: 600; margin-bottom: 1rem; }
.hero__title { font-size: 2.8rem; margin-bottom: 1rem; color: var(--color-dark); }
.hero__title span { color: var(--color-primary); }
.hero__subtitle { font-size: 1.2rem; color: var(--color-text-light); margin-bottom: 1.5rem; }
.hero__benefits { margin-bottom: 2rem; }
.hero__benefits li { padding: 8px 0; font-size: 1.05rem; color: var(--color-text); }
.hero__price-box { background: var(--color-white); padding: 1.5rem; border-radius: var(--radius-md); box-shadow: var(--shadow-md); margin-bottom: 1.5rem; display: block; max-width: fit-content; }
.price-old { font-size: 1.1rem; color: var(--color-text-light); text-decoration: line-through; }
.price-new { font-size: 2.5rem; font-weight: 800; color: var(--color-primary); font-family: var(--font-primary); }
.price-discount { display: inline-block; background: var(--color-danger); color: var(--color-white); padding: 4px 12px; border-radius: 4px; font-size: 0.9rem; font-weight: 600; margin-left: 10px; }
.hero__urgency { margin-top: 1rem; padding: 12px 20px; background: #fff3cd; border-left: 4px solid var(--color-warning); border-radius: var(--radius-sm); font-size: 0.95rem; }
.hero__image { text-align: center; }
.hero__img { max-width: 450px; margin: 0 auto; filter: drop-shadow(0 20px 40px rgba(198, 40, 40, 0.2)); }

/* ===== TRUST BAR ===== */
.trust-bar { background: var(--color-secondary); padding: 1rem 0; }
.trust-bar__inner { display: flex; justify-content: space-around; flex-wrap: wrap; gap: 1rem; }
.trust-item { display: flex; align-items: center; gap: 8px; color: var(--color-white); font-weight: 500; }
.trust-item__icon { font-size: 1.3rem; }

/* ===== SECTIONS ===== */
.section { padding: 80px 0; }
.section--light { background: var(--color-light); }
.section--dark { background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-dark) 100%); color: var(--color-white); }
.section--order { background: linear-gradient(135deg, var(--color-light) 0%, var(--color-light-alt) 100%); }
.section--banner { background: var(--color-light-alt); padding: 60px 0; }
.section__title { font-size: 2.2rem; text-align: center; margin-bottom: 1rem; color: var(--color-dark); }
.section__title--light { color: var(--color-white); }
.section__intro { text-align: center; max-width: 800px; margin: 0 auto 3rem; font-size: 1.1rem; color: var(--color-text-light); }
.section__text { margin-bottom: 1.5rem; font-size: 1.05rem; line-height: 1.8; }

/* ===== PROBLEM SECTION ===== */
.problem-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; margin-top: 2rem; }
.problem-symptoms { margin-top: 2rem; padding: 1.5rem; background: var(--color-white); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); }
.problem-symptoms h3 { margin-bottom: 1rem; color: var(--color-dark); }
.symptoms-list li { padding: 10px 0; display: flex; align-items: center; gap: 10px; }
.symptom-marker { font-size: 0.8rem; }
.problem-image .section-img { border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }

/* ===== BENEFITS GRID ===== */
.benefits-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; margin-top: 3rem; }
.benefit-card { background: var(--color-white); padding: 2rem; border-radius: var(--radius-md); text-align: center; box-shadow: var(--shadow-sm); transition: var(--transition); border: 1px solid transparent; }
.benefit-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: var(--color-primary-light); }
.benefit-card__icon { font-size: 2.5rem; margin-bottom: 1rem; }
.benefit-card h4 { margin-bottom: 0.5rem; color: var(--color-dark); }
.benefit-card p { font-size: 0.95rem; color: var(--color-text-light); }
.cta-box { text-align: center; margin-top: 3rem; }

/* ===== EXPERT SECTION ===== */
.expert-grid { display: grid; grid-template-columns: 300px 1fr; gap: 3rem; align-items: center; }
.expert-img { border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); max-width: 280px; }
.expert-quote { background: var(--color-white); padding: 2rem; border-radius: var(--radius-md); border-left: 4px solid var(--color-primary); margin: 2rem 0; box-shadow: var(--shadow-sm); }
.expert-quote p { font-size: 1.1rem; font-style: italic; line-height: 1.8; margin-bottom: 1rem; }
.expert-quote cite { font-style: normal; font-weight: 600; color: var(--color-primary); }
.expert-stats { display: flex; gap: 2rem; margin-top: 2rem; }
.stat-item { text-align: center; }
.stat-number { display: block; font-size: 2rem; font-weight: 800; color: var(--color-primary); font-family: var(--font-primary); }
.stat-label { font-size: 0.9rem; color: var(--color-text-light); }

/* ===== INGREDIENTS GRID ===== */
.ingredients-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; margin-top: 3rem; }
.ingredient-card { background: var(--color-white); padding: 2rem; border-radius: var(--radius-md); text-align: center; box-shadow: var(--shadow-sm); transition: var(--transition); }
.ingredient-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.ingredient-card__icon { font-size: 2.5rem; margin-bottom: 1rem; }
.ingredient-card h4 { color: var(--color-dark); margin-bottom: 0.3rem; }
.ingredient-latin { font-style: italic; font-size: 0.85rem; color: var(--color-secondary); margin-bottom: 1rem; }
.ingredient-card p:last-child { font-size: 0.95rem; color: var(--color-text-light); }
.composition-note { text-align: center; margin-top: 2rem; padding: 1rem; background: var(--color-light-alt); border-radius: var(--radius-md); color: var(--color-dark); }

/* ===== STEPS GRID ===== */
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; margin: 3rem 0; }
.step-card { text-align: center; padding: 2rem 1rem; }
.step-number { display: inline-flex; align-items: center; justify-content: center; width: 60px; height: 60px; background: var(--color-primary); color: var(--color-white); font-size: 1.5rem; font-weight: 800; border-radius: 50%; margin-bottom: 1rem; }
.step-card h4 { margin-bottom: 0.5rem; }
.step-card p { font-size: 0.95rem; color: var(--color-text-light); }
.usage-tip { background: var(--color-white); padding: 1.5rem; border-radius: var(--radius-md); border-left: 4px solid var(--color-secondary); }

/* ===== WHERE TO BUY ===== */
.where-buy-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; margin: 3rem 0; }
.where-buy-card { padding: 2rem; border-radius: var(--radius-md); text-align: center; }
.where-buy-card--no { background: #ffebee; border: 2px solid #ef5350; }
.where-buy-card--warning { background: #fff8e1; border: 2px solid #ffc107; }
.where-buy-card--yes { background: #e8f5e9; border: 2px solid var(--color-success); }
.where-buy-icon { font-size: 3rem; margin-bottom: 1rem; }
.where-buy-card h4 { margin-bottom: 1rem; }
.where-buy-card p { font-size: 0.95rem; }
.buy-explanation { background: var(--color-white); padding: 2rem; border-radius: var(--radius-md); box-shadow: var(--shadow-sm); }
.buy-explanation h3 { margin-bottom: 1rem; }
.buy-reasons li { padding: 8px 0; padding-left: 10px; }

/* ===== PRICE BOX ===== */
.price-box { max-width: 500px; margin: 2rem auto; background: var(--color-white); padding: 2.5rem; border-radius: var(--radius-lg); text-align: center; box-shadow: var(--shadow-lg); }
.price-box__badge { display: inline-block; background: var(--color-danger); color: var(--color-white); padding: 8px 20px; border-radius: 50px; font-weight: 700; margin-bottom: 1.5rem; }
.price-box__product { margin-bottom: 1.5rem; }
.price-product-img { max-width: 200px; margin: 0 auto; }
.price-box__info h3 { color: var(--color-dark); margin-bottom: 0.5rem; }
.price-duration { color: var(--color-text-light); margin-bottom: 1rem; font-size: 0.9rem; }
.price-box__old { font-size: 1.1rem; color: var(--color-text-light); }
.price-box__new { font-size: 3rem; font-weight: 800; color: var(--color-primary); font-family: var(--font-primary); }
.price-box__save { color: var(--color-success); font-weight: 600; margin-bottom: 1.5rem; }
.price-box__features { margin: 1.5rem 0; text-align: left; }
.price-feature { padding: 8px 0; font-size: 0.95rem; color: var(--color-text); }

/* ===== REVIEWS ===== */
.reviews-stats { display: flex; justify-content: center; gap: 4rem; margin: 2rem 0 3rem; padding: 2rem; background: var(--color-light); border-radius: var(--radius-md); }
.reviews-rating { text-align: center; }
.rating-number { font-size: 4rem; font-weight: 800; color: var(--color-primary); font-family: var(--font-primary); line-height: 1; }
.rating-stars { display: block; font-size: 1.5rem; color: #ffc107; margin: 0.5rem 0; }
.rating-count { font-size: 0.9rem; color: var(--color-text-light); }
.rating-bars { display: flex; flex-direction: column; gap: 8px; justify-content: center; }
.rating-bar { display: flex; align-items: center; gap: 10px; font-size: 0.9rem; }
.rating-bar .bar { width: 150px; height: 8px; background: #e0e0e0; border-radius: 4px; overflow: hidden; }
.rating-bar .bar-fill { height: 100%; background: var(--color-primary); border-radius: 4px; }
.reviews-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; }
.review-card { background: var(--color-white); padding: 1.5rem; border-radius: var(--radius-md); box-shadow: var(--shadow-sm); }
.review-card__header { display: flex; align-items: center; gap: 1rem; margin-bottom: 1rem; }
.review-card__avatar { width: 50px; height: 50px; border-radius: 50%; background: var(--color-secondary); color: var(--color-white); display: flex; align-items: center; justify-content: center; font-size: 1.3rem; font-weight: 700; }
.review-card__info { flex: 1; }
.review-card__name { display: block; font-weight: 600; color: var(--color-dark); }
.review-card__location { font-size: 0.9rem; color: var(--color-text-light); }
.review-card__rating { color: #ffc107; font-size: 1.1rem; }
.review-card__verified { display: inline-block; background: #e8f5e9; color: var(--color-success); font-size: 0.8rem; padding: 4px 10px; border-radius: 4px; margin-bottom: 1rem; }
.review-card__text { font-style: italic; line-height: 1.7; margin-bottom: 1rem; }
.review-card__date { font-size: 0.85rem; color: var(--color-text-light); }
.reviews-note { margin-top: 2rem; padding: 1.5rem; background: var(--color-light); border-radius: var(--radius-md); border-left: 4px solid var(--color-secondary); }

/* ===== SAFETY ===== */
.safety-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; margin: 2rem 0; }
.safety-card { padding: 2rem; border-radius: var(--radius-md); }
.safety-card--safe { background: #e8f5e9; border: 2px solid var(--color-success); }
.safety-card--warning { background: #fff8e1; border: 2px solid #ffc107; }
.safety-icon { font-size: 2.5rem; margin-bottom: 1rem; }
.safety-card h4 { margin-bottom: 1rem; }
.safety-card li { padding: 6px 0; padding-left: 20px; position: relative; }
.safety-card li::before { content: '•'; position: absolute; left: 0; color: var(--color-text); }
.safety-disclaimer { background: var(--color-white); padding: 1.5rem; border-radius: var(--radius-md); border: 1px solid #e0e0e0; font-size: 0.9rem; }

/* ===== BANNER ===== */
.banner-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; }
.banner-img { border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }
.banner-content h3 { font-size: 1.8rem; margin-bottom: 1rem; color: var(--color-dark); }
.banner-content p { margin-bottom: 1.5rem; font-size: 1.1rem; color: var(--color-text-light); }

/* ===== FAQ ===== */
.faq-accordion { max-width: 800px; margin: 2rem auto; }
.faq-item { margin-bottom: 1rem; border: 1px solid #e0e0e0; border-radius: var(--radius-md); overflow: hidden; }
.faq-question { width: 100%; padding: 1.2rem 1.5rem; background: var(--color-white); border: none; text-align: left; font-family: var(--font-primary); font-size: 1rem; font-weight: 600; color: var(--color-dark); cursor: pointer; display: flex; justify-content: space-between; align-items: center; transition: var(--transition); }
.faq-question:hover { background: var(--color-light); }
.faq-icon { font-size: 1.5rem; font-weight: 300; color: var(--color-primary); transition: var(--transition); }
.faq-item.active .faq-icon { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.faq-item.active .faq-answer { max-height: 500px; }
.faq-answer p { padding: 0 1.5rem 1.5rem; color: var(--color-text-light); line-height: 1.7; }

/* ===== ORDER SECTION ===== */
.order-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: start; }
.order-product { background: var(--color-white); padding: 2rem; border-radius: var(--radius-lg); box-shadow: var(--shadow-md); text-align: center; }
.order-product-img { max-width: 220px; margin: 0 auto 1.5rem; }
.order-product-info h3 { margin-bottom: 1rem; }
.order-price { margin-bottom: 1.5rem; }
.order-price-old { font-size: 1.1rem; color: var(--color-text-light); text-decoration: line-through; margin-right: 10px; }
.order-price-new { font-size: 2rem; font-weight: 800; color: var(--color-primary); }
.order-benefits { text-align: left; }
.order-benefits li { padding: 8px 0; }
.order-form-container { background: var(--color-white); padding: 2rem; border-radius: var(--radius-lg); box-shadow: var(--shadow-md); }
.order-form-header { text-align: center; margin-bottom: 1.5rem; }
.order-form-header h3 { color: var(--color-dark); margin-bottom: 0.5rem; }
.order-form-header p { color: var(--color-text-light); }
.order-iframe-container { min-height: 400px; }
.order-iframe { width: 100%; min-height: 400px; border: none; }

/* ===== FOOTER ===== */
.footer { background: var(--color-dark); color: var(--color-white); padding: 3rem 0 2rem; }
.footer__inner { text-align: center; }
.footer__disclaimer { max-width: 800px; margin: 0 auto 2rem; padding: 1.5rem; background: rgba(255,255,255,0.1); border-radius: var(--radius-md); font-size: 0.85rem; line-height: 1.6; }
.footer__links { margin-bottom: 1.5rem; }
.footer__links a { color: var(--color-white); margin: 0 1rem; opacity: 0.8; }
.footer__links a:hover { opacity: 1; }
.footer__copy { font-size: 0.9rem; opacity: 0.7; }

/* ===== BACK TO TOP ===== */
.back-to-top { position: fixed; bottom: 30px; right: 30px; width: 50px; height: 50px; background: var(--color-primary); color: var(--color-white); border: none; border-radius: 50%; font-size: 1.5rem; cursor: pointer; opacity: 0; visibility: hidden; transition: var(--transition); z-index: 999; box-shadow: var(--shadow-md); }
.back-to-top.visible { opacity: 1; visibility: visible; }
.back-to-top:hover { background: var(--color-primary-dark); transform: translateY(-3px); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .hero__inner, .problem-grid, .expert-grid, .order-grid, .banner-grid { grid-template-columns: 1fr; }
    .hero__image { order: -1; }
    .benefits-grid, .ingredients-grid, .where-buy-grid { grid-template-columns: repeat(2, 1fr); }
    .steps-grid { grid-template-columns: repeat(2, 1fr); }
    .expert-img { margin: 0 auto; }
}

@media (max-width: 768px) {
    .nav { position: fixed; top: 70px; left: 0; right: 0; background: var(--color-white); padding: 1rem; box-shadow: var(--shadow-md); transform: translateY(-100%); opacity: 0; visibility: hidden; transition: var(--transition); }
    .nav.active { transform: translateY(0); opacity: 1; visibility: visible; }
    .nav__list { flex-direction: column; gap: 1rem; }
    .burger { display: flex; }
    .lang-switcher { margin-left: auto; margin-right: 1rem; }
    .hero__title { font-size: 2rem; }
    .section__title { font-size: 1.8rem; }
    .benefits-grid, .ingredients-grid, .where-buy-grid, .safety-grid, .reviews-grid { grid-template-columns: 1fr; }
    .steps-grid { grid-template-columns: 1fr; }
    .reviews-stats { flex-direction: column; gap: 2rem; }
    .expert-stats { flex-wrap: wrap; justify-content: center; }
}

@media (max-width: 480px) {
    .hero__title { font-size: 1.7rem; }
    .price-new, .price-box__new { font-size: 2rem; }
    .btn--large { padding: 14px 24px; font-size: 1rem; }
    .lang-switcher__link { padding: 3px 6px; font-size: 0.8rem; }
}