:root {
    --color-primary: #2c5f5a;
    --color-primary-dark: #1e4240;
    --color-secondary: #d4a853;
    --color-accent: #8fb8b0;
    --color-bg-light: #faf9f7;
    --color-bg-dark: #1a1a1a;
    --color-text: #2d2d2d;
    --color-text-light: #5a5a5a;
    --color-white: #ffffff;
    --color-border: #e5e5e5;
    --font-main: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-heading: Georgia, 'Times New Roman', serif;
    --shadow-soft: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-medium: 0 8px 30px rgba(0,0,0,0.12);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    font-size: 17px;
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-bg-light);
}

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

a:hover {
    color: var(--color-secondary);
}

img {
    max-width: 100%;
    height: auto;
    object-fit: cover;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.container-narrow {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Top bar - ad disclosure */
.top-bar {
    background-color: var(--color-bg-dark);
    color: var(--color-white);
    padding: 8px 0;
    font-size: 13px;
    text-align: center;
}

.top-bar span {
    opacity: 0.9;
}

/* Header */
.header {
    background-color: var(--color-white);
    box-shadow: var(--shadow-soft);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 0;
}

.logo {
    font-family: var(--font-heading);
    font-size: 26px;
    font-weight: 700;
    color: var(--color-primary);
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-list a {
    color: var(--color-text);
    font-weight: 500;
    font-size: 15px;
    padding: 8px 0;
    position: relative;
}

.nav-list a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-secondary);
    transition: var(--transition);
}

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

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
}

.hamburger span {
    width: 28px;
    height: 3px;
    background-color: var(--color-primary);
    transition: var(--transition);
}

/* Hero section */
.hero {
    position: relative;
    min-height: 85vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-primary);
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.35;
}

.hero-content {
    position: relative;
    z-index: 2;
    color: var(--color-white);
    max-width: 700px;
    padding: 60px 0;
}

.hero-content h1 {
    font-family: var(--font-heading);
    font-size: 52px;
    line-height: 1.2;
    margin-bottom: 24px;
    font-weight: 400;
}

.hero-content p {
    font-size: 20px;
    margin-bottom: 36px;
    opacity: 0.95;
    line-height: 1.8;
}

.btn {
    display: inline-block;
    padding: 16px 36px;
    font-size: 16px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.btn-primary {
    background-color: var(--color-secondary);
    color: var(--color-bg-dark);
}

.btn-primary:hover {
    background-color: #c49a48;
    color: var(--color-bg-dark);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-white);
    border: 2px solid var(--color-white);
}

.btn-secondary:hover {
    background-color: var(--color-white);
    color: var(--color-primary);
}

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

.btn-dark:hover {
    background-color: var(--color-primary-dark);
    color: var(--color-white);
}

/* Sections */
.section {
    padding: 100px 0;
}

.section-alt {
    background-color: var(--color-white);
}

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

.section-accent {
    background-color: var(--color-accent);
    background-color: rgba(143, 184, 176, 0.15);
}

.section-title {
    font-family: var(--font-heading);
    font-size: 42px;
    font-weight: 400;
    margin-bottom: 20px;
    color: var(--color-primary);
}

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

.section-subtitle {
    font-size: 18px;
    color: var(--color-text-light);
    margin-bottom: 50px;
    max-width: 600px;
}

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

/* Story/Intro section */
.story-block {
    display: flex;
    gap: 60px;
    align-items: center;
    margin-bottom: 80px;
}

.story-block:nth-child(even) {
    flex-direction: row-reverse;
}

.story-text {
    flex: 1;
}

.story-image {
    flex: 1;
    background-color: var(--color-accent);
}

.story-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.story-text h2 {
    font-family: var(--font-heading);
    font-size: 32px;
    margin-bottom: 20px;
    color: var(--color-primary);
}

.story-text p {
    margin-bottom: 16px;
    color: var(--color-text-light);
}

/* Problem section */
.problem-grid {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
}

.problem-card {
    flex: 1;
    min-width: 280px;
    background-color: var(--color-white);
    padding: 40px 30px;
    box-shadow: var(--shadow-soft);
    border-left: 4px solid var(--color-secondary);
}

.problem-card h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--color-primary);
}

.problem-card p {
    color: var(--color-text-light);
    font-size: 15px;
}

/* Benefits section */
.benefits-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
    max-width: 700px;
    margin: 0 auto;
}

.benefit-item {
    display: flex;
    gap: 24px;
    align-items: flex-start;
    padding: 30px;
    background-color: rgba(255,255,255,0.1);
}

.benefit-icon {
    width: 60px;
    height: 60px;
    background-color: var(--color-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    flex-shrink: 0;
}

.benefit-content h3 {
    font-size: 20px;
    margin-bottom: 10px;
}

.benefit-content p {
    opacity: 0.9;
    font-size: 15px;
}

/* Services cards */
.services-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
}

.service-card {
    flex: 1;
    min-width: 320px;
    background-color: var(--color-white);
    box-shadow: var(--shadow-soft);
    overflow: hidden;
    transition: var(--transition);
}

.service-card:hover {
    box-shadow: var(--shadow-medium);
    transform: translateY(-5px);
}

.service-image {
    height: 200px;
    background-color: var(--color-accent);
}

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

.service-content {
    padding: 30px;
}

.service-content h3 {
    font-size: 22px;
    margin-bottom: 12px;
    color: var(--color-primary);
}

.service-content p {
    color: var(--color-text-light);
    margin-bottom: 20px;
    font-size: 15px;
}

.service-price {
    font-size: 28px;
    font-weight: 700;
    color: var(--color-secondary);
    margin-bottom: 20px;
}

.service-price span {
    font-size: 14px;
    font-weight: 400;
    color: var(--color-text-light);
}

/* Testimonials */
.testimonials-wrapper {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.testimonial {
    background-color: var(--color-white);
    padding: 40px;
    box-shadow: var(--shadow-soft);
    position: relative;
}

.testimonial::before {
    content: '"';
    font-family: var(--font-heading);
    font-size: 80px;
    color: var(--color-accent);
    position: absolute;
    top: 20px;
    left: 30px;
    line-height: 1;
    opacity: 0.5;
}

.testimonial-text {
    font-size: 18px;
    line-height: 1.8;
    margin-bottom: 24px;
    padding-left: 40px;
    font-style: italic;
    color: var(--color-text);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 16px;
    padding-left: 40px;
}

.testimonial-author-info strong {
    display: block;
    color: var(--color-primary);
}

.testimonial-author-info span {
    font-size: 14px;
    color: var(--color-text-light);
}

/* CTA sections */
.cta-block {
    text-align: center;
    padding: 80px 40px;
    background-color: var(--color-primary);
    color: var(--color-white);
}

.cta-block h2 {
    font-family: var(--font-heading);
    font-size: 36px;
    margin-bottom: 20px;
}

.cta-block p {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: 0.9;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

/* Form styles */
.form-section {
    background-color: var(--color-bg-light);
    padding: 80px 0;
}

.form-wrapper {
    max-width: 600px;
    margin: 0 auto;
    background-color: var(--color-white);
    padding: 50px;
    box-shadow: var(--shadow-medium);
}

.form-wrapper h2 {
    font-family: var(--font-heading);
    font-size: 32px;
    margin-bottom: 30px;
    color: var(--color-primary);
    text-align: center;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--color-text);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    font-size: 16px;
    border: 1px solid var(--color-border);
    font-family: var(--font-main);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(44, 95, 90, 0.1);
}

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

.form-submit {
    width: 100%;
    padding: 18px;
    font-size: 18px;
    background-color: var(--color-primary);
    color: var(--color-white);
    border: none;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
}

.form-submit:hover {
    background-color: var(--color-primary-dark);
}

/* About page */
.about-intro {
    display: flex;
    gap: 60px;
    align-items: center;
}

.about-intro-text {
    flex: 1;
}

.about-intro-image {
    flex: 1;
    background-color: var(--color-accent);
}

.about-intro-image img {
    width: 100%;
    height: 500px;
    object-fit: cover;
}

.values-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    justify-content: center;
}

.value-item {
    flex: 1;
    min-width: 250px;
    max-width: 350px;
    text-align: center;
    padding: 40px 30px;
}

.value-icon {
    width: 80px;
    height: 80px;
    background-color: var(--color-accent);
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
}

.value-item h3 {
    font-size: 20px;
    margin-bottom: 12px;
    color: var(--color-primary);
}

.value-item p {
    color: var(--color-text-light);
    font-size: 15px;
}

/* Contact page */
.contact-wrapper {
    display: flex;
    gap: 60px;
}

.contact-info {
    flex: 1;
}

.contact-info h2 {
    font-family: var(--font-heading);
    font-size: 32px;
    margin-bottom: 30px;
    color: var(--color-primary);
}

.contact-item {
    margin-bottom: 30px;
}

.contact-item h3 {
    font-size: 16px;
    color: var(--color-text-light);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.contact-item p {
    font-size: 18px;
    color: var(--color-text);
}

.contact-form-wrapper {
    flex: 1;
    background-color: var(--color-white);
    padding: 40px;
    box-shadow: var(--shadow-soft);
}

/* Thanks page */
.thanks-section {
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 60px 24px;
}

.thanks-content {
    max-width: 600px;
}

.thanks-icon {
    width: 100px;
    height: 100px;
    background-color: var(--color-accent);
    margin: 0 auto 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    color: var(--color-primary);
}

.thanks-content h1 {
    font-family: var(--font-heading);
    font-size: 42px;
    margin-bottom: 20px;
    color: var(--color-primary);
}

.thanks-content p {
    font-size: 18px;
    color: var(--color-text-light);
    margin-bottom: 30px;
}

/* Legal pages */
.legal-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 80px 24px;
}

.legal-content h1 {
    font-family: var(--font-heading);
    font-size: 38px;
    margin-bottom: 40px;
    color: var(--color-primary);
}

.legal-content h2 {
    font-size: 24px;
    margin-top: 40px;
    margin-bottom: 16px;
    color: var(--color-primary);
}

.legal-content p {
    margin-bottom: 16px;
    color: var(--color-text-light);
}

.legal-content ul {
    margin-left: 24px;
    margin-bottom: 16px;
}

.legal-content li {
    margin-bottom: 8px;
    color: var(--color-text-light);
}

/* Footer */
.footer {
    background-color: var(--color-bg-dark);
    color: var(--color-white);
    padding: 60px 0 30px;
}

.footer-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col {
    flex: 1;
    min-width: 200px;
}

.footer-col h3 {
    font-size: 16px;
    margin-bottom: 20px;
    color: var(--color-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

.footer-col li {
    margin-bottom: 10px;
}

.footer-col a {
    color: rgba(255,255,255,0.7);
    font-size: 15px;
}

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

.footer-col p {
    color: rgba(255,255,255,0.7);
    font-size: 15px;
    line-height: 1.8;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 30px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 20px;
}

.footer-bottom p {
    color: rgba(255,255,255,0.5);
    font-size: 14px;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: rgba(255,255,255,0.5);
    font-size: 14px;
}

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

/* Disclaimer */
.disclaimer {
    background-color: rgba(0,0,0,0.3);
    padding: 30px;
    margin-top: 40px;
    font-size: 13px;
    line-height: 1.7;
    color: rgba(255,255,255,0.6);
}

/* Cookie banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--color-bg-dark);
    color: var(--color-white);
    padding: 24px;
    z-index: 9999;
    box-shadow: 0 -4px 20px rgba(0,0,0,0.2);
    display: none;
}

.cookie-banner.active {
    display: block;
}

.cookie-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    flex-wrap: wrap;
}

.cookie-content p {
    flex: 1;
    font-size: 14px;
    opacity: 0.9;
}

.cookie-content p a {
    color: var(--color-secondary);
}

.cookie-buttons {
    display: flex;
    gap: 12px;
}

.cookie-btn {
    padding: 12px 24px;
    font-size: 14px;
    border: none;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
}

.cookie-accept {
    background-color: var(--color-secondary);
    color: var(--color-bg-dark);
}

.cookie-reject {
    background-color: transparent;
    border: 1px solid rgba(255,255,255,0.3);
    color: var(--color-white);
}

/* Scientific references */
.reference-link {
    color: var(--color-primary);
    font-weight: 600;
    font-size: 14px;
    vertical-align: super;
}

.references-section {
    background-color: var(--color-white);
    padding: 40px;
    margin-top: 40px;
}

.references-section h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--color-primary);
}

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

.references-list li {
    margin-bottom: 12px;
    font-size: 14px;
    color: var(--color-text-light);
    padding-left: 30px;
    position: relative;
}

.references-list li span {
    position: absolute;
    left: 0;
    font-weight: 600;
    color: var(--color-primary);
}

/* Responsive */
@media (max-width: 992px) {
    .hero-content h1 {
        font-size: 40px;
    }

    .story-block,
    .story-block:nth-child(even) {
        flex-direction: column;
    }

    .about-intro {
        flex-direction: column;
    }

    .contact-wrapper {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    .nav-list {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--color-white);
        flex-direction: column;
        padding: 20px;
        gap: 0;
        box-shadow: var(--shadow-medium);
    }

    .nav-list.active {
        display: flex;
    }

    .nav-list li {
        border-bottom: 1px solid var(--color-border);
    }

    .nav-list a {
        display: block;
        padding: 15px 0;
    }

    .hamburger {
        display: flex;
    }

    .hero-content h1 {
        font-size: 32px;
    }

    .section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 32px;
    }

    .form-wrapper {
        padding: 30px 20px;
    }

    .footer-grid {
        flex-direction: column;
    }

    .cookie-content {
        flex-direction: column;
        text-align: center;
    }
}

/* Inline CTA */
.inline-cta {
    display: inline-block;
    color: var(--color-secondary);
    font-weight: 600;
    border-bottom: 2px solid var(--color-secondary);
    padding-bottom: 2px;
}

.inline-cta:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
}

/* Sticky CTA */
.sticky-cta {
    position: fixed;
    bottom: 100px;
    right: 30px;
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.sticky-cta.visible {
    opacity: 1;
    visibility: visible;
}

.sticky-cta a {
    display: block;
    background-color: var(--color-secondary);
    color: var(--color-bg-dark);
    padding: 16px 24px;
    font-weight: 600;
    box-shadow: var(--shadow-medium);
}

.sticky-cta a:hover {
    background-color: #c49a48;
    transform: translateY(-2px);
}

/* Insight section */
.insight-box {
    background-color: var(--color-white);
    padding: 50px;
    box-shadow: var(--shadow-soft);
    border-left: 5px solid var(--color-secondary);
    margin: 40px 0;
}

.insight-box h3 {
    font-family: var(--font-heading);
    font-size: 26px;
    margin-bottom: 16px;
    color: var(--color-primary);
}

.insight-box p {
    color: var(--color-text-light);
    font-size: 17px;
}

/* Trust badges */
.trust-badges {
    display: flex;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
    padding: 40px 0;
}

.trust-badge {
    text-align: center;
}

.trust-badge-number {
    font-size: 48px;
    font-weight: 700;
    color: var(--color-secondary);
    display: block;
}

.trust-badge-text {
    font-size: 14px;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Page header */
.page-header {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 80px 0;
    text-align: center;
}

.page-header h1 {
    font-family: var(--font-heading);
    font-size: 42px;
    margin-bottom: 16px;
}

.page-header p {
    font-size: 18px;
    opacity: 0.9;
}