:root {
    --primary: #0F4C5C; /* Deep Teal - Professional & Medical */
    --secondary: #9A8C98; /* Muted Purple/Grey - Calm */
    --accent: #E0B1CB; /* Soft Pink/Lavender - Healing */
    --gold: #C9A227; /* Subtle Gold for Premium feel */
    --bg-light: #F8F9FA;
    --text-dark: #2B2D42;
    --text-light: #6C757D;

    --font-heading: 'Playfair Display', serif;
    --font-body: 'Outfit', sans-serif;

    --radius: 12px;
    --shadow: 0 10px 30px rgba(0,0,0,0.05);
}

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

body {
    font-family: var(--font-body);
    background-color: #fff;
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 700;
}

a {
    text-decoration: none;
    color: inherit;
    transition: 0.3s ease;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 500;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--primary);
    color: white;
    box-shadow: 0 4px 15px rgba(15, 76, 92, 0.3);
}

.btn-primary:hover {
    background-color: #0a3540;
    transform: translateY(-2px);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid white;
    color: white;
    margin-left: 15px;
}

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

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0,0,0,0.05);
    padding: 15px 0;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    flex-direction: column;
}

.dr-name {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary);
}

.sub-logo {
    font-size: 0.85rem;
    color: var(--text-light);
    font-weight: 300;
    letter-spacing: 2px;
}

.nav-list {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-list a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-dark);
}

.nav-list a:hover {
    color: var(--primary);
}

.nav-list .btn-nav {
    background-color: var(--primary);
    color: white;
    padding: 10px 24px;
    border-radius: 50px;
}

.nav-list .btn-nav:hover {
    background-color: #0a3540;
    color: white;
}

/* Hero */
.hero {
    position: relative;
    height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
    margin-top: 60px; /* Header height offset if needed, but fixed header covers it usually */
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

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

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(15, 76, 92, 0.85) 0%, rgba(15, 76, 92, 0.4) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero-title {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 20px;
}

.hero-title em {
    font-family: var(--font-heading);
    font-style: italic;
    color: var(--accent);
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 40px;
    opacity: 0.9;
    font-weight: 300;
}

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

.section-header {
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 15px;
}

.divider {
    width: 60px;
    height: 4px;
    background-color: var(--gold);
    border-radius: 2px;
}

.divider.center {
    margin: 0 auto;
}

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

/* About */
.about-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-text p {
    margin-bottom: 20px;
    font-size: 1.1rem;
    color: var(--text-light);
}

.feature-list {
    list-style: none;
    margin-top: 30px;
}

.feature-list li {
    font-size: 1.1rem;
    margin-bottom: 15px;
    color: var(--text-dark);
    font-weight: 500;
}

.about-highlight {
    background-color: var(--bg-light);
    padding: 40px;
    border-radius: var(--radius);
    border-left: 5px solid var(--primary);
}

.about-highlight h3 {
    color: var(--primary);
    margin-bottom: 15px;
}

/* Symptoms/Benefits Grid */
.benefits {
    background-color: #fcfcfc;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.benefit-card {
    background: white;
    padding: 40px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
    border-bottom: 3px solid transparent;
}

.benefit-card:hover {
    transform: translateY(-10px);
    border-bottom: 3px solid var(--gold);
}

.benefit-card .icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.benefit-card h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--primary);
}

.benefit-card p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* Process */
.process-wrapper {
    display: grid;
    grid-template-columns: 1fr; /* Changed for SIBO treatment list usually being sequential or a list */
    gap: 30px;
}
/* Reverting to Hacamat style for consistency if we use Before/After or similar split, but for SIBO Treatment methods we might want a list of steps.
   Keeping the grid 1fr 1fr for now to support diverse layouts or two main approaches (Antibiotic vs Herbal). */
.process-wrapper {
   grid-template-columns: 1fr 1fr;
}


.process-box {
    padding: 50px;
    border-radius: var(--radius);
}

.process-box.before {
    background-color: #fff4e6; /* Soft Orange tint */
    border: 1px solid #ffe8cc;
}

.process-box.after {
    background-color: #e6f7ff; /* Soft Blue tint */
    border: 1px solid #bae7ff;
}

.process-box h3 {
    font-size: 1.5rem;
    margin-bottom: 25px;
    color: var(--text-dark);
}

.process-box ul {
    list-style-position: inside;
}

.process-box ul li {
    margin-bottom: 12px;
    color: var(--text-dark);
}

/* Contact */
.contact {
    background-color: var(--primary);
    color: white;
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.contact-title {
    color: white;
    margin-bottom: 15px;
}

.contact-sub {
    color: rgba(255,255,255,0.8);
    margin-bottom: 40px;
    font-size: 1.1rem;
}

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

.info-label {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--gold);
    margin-bottom: 5px;
}

.info-value {
    font-size: 1.2rem;
    font-family: var(--font-heading);
}

.big-phone {
    font-size: 2rem;
    font-weight: 700;
    color: white;
}

.contact-map {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
}

.footer {
    background-color: #0a3540;
    color: rgba(255,255,255,0.6);
    padding: 30px 0;
    font-size: 0.9rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
}

.footer-right a {
    color: rgba(255,255,255,0.6);
    margin-left: 20px;
}

.footer-right a:hover {
    color: white;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .nav {
        display: none; /* Simplification */
    }

    .about-grid, .process-wrapper, .contact-container {
        grid-template-columns: 1fr;
    }

    .contact-map {
        height: 300px;
    }
}

/* Benefit Detail Pages */
.benefit-page-header {
    background-color: var(--primary);
    padding: 120px 0 60px;
    color: white;
    text-align: center;
}

.benefit-title {
    font-size: 3rem;
    margin-bottom: 20px;
}

.benefit-subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 700px;
    margin: 0 auto;
}

.scientific-content {
    background-color: white;
    padding: 80px 0;
}

.scientific-block {
    margin-bottom: 50px;
}

.scientific-block h3 {
    font-size: 1.8rem;
    color: var(--primary);
    margin-bottom: 20px;
    border-left: 4px solid var(--gold);
    padding-left: 15px;
}

.scientific-block p {
    font-size: 1.1rem;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.scientific-highlight {
    background: #f0f7f9;
    padding: 30px;
    border-radius: var(--radius);
    margin: 30px 0;
}

.reference-list {
    margin-top: 40px;
    padding-top: 40px;
    border-top: 1px solid #eee;
}

.reference-item {
    background: #fff;
    border: 1px solid #eee;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 15px;
    transition: all 0.2s;
}

.reference-item:hover {
    border-color: var(--primary);
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.reference-title {
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 5px;
    display: block;
}

.reference-authors {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 10px;
}

.pubmed-link {
    display: inline-flex;
    align-items: center;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9rem;
}

.pubmed-link:hover {
    text-decoration: underline;
}

.read-more {
    display: block;
    margin-top: 15px;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9rem;
}

/* Social Links */
.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    border-radius: 50px;
    background-color: rgba(255,255,255,0.1);
    color: white;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 1px solid rgba(255,255,255,0.2);
}

.social-btn:hover {
    background-color: white;
    transform: translateY(-2px);
}

.social-btn.instagram:hover {
    color: #E1306C;
}

.social-btn.youtube:hover {
    color: #FF0000;
}


/* ... existing styles ... */

/* Hero Original Overlay Layout */
.hero {
    position: relative;
    height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
    margin-top: 60px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    display: block; /* Restore */
}

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

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(15, 76, 92, 0.85) 0%, rgba(15, 76, 92, 0.4) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero-title {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 20px;
    color: white; /* Ensure white text */
}

.hero-title em {
    font-family: var(--font-heading);
    font-style: italic;
    color: var(--accent);
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 40px;
    opacity: 0.9;
    font-weight: 300;
    color: white;
}

/* Revert button styles for dark overlay */
.hero-buttons .btn-outline {
    border: 2px solid white;
    color: white;
}

.hero-buttons .btn-outline:hover {
    background-color: white;
    color: var(--primary);
}

/* Remove Split Layout classes just in case or override them */

/* ... existing styles ... */

/* Test Process Section (Timeline) */
.test-process {
    background-color: #fff;
    padding: 100px 0;
}

.timeline {
    position: relative;
    max-width: 1000px;
    margin: 50px auto 0;
}

/* Vertical Line */
.timeline::after {
    content: '';
    position: absolute;
    width: 4px;
    background-color: var(--bg-light);
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -2px;
}

.timeline-container {
    padding: 10px 40px;
    position: relative;
    background-color: inherit;
    width: 50%;
}

.timeline-container.left {
    left: 0;
}

.timeline-container.right {
    left: 50%;
}

/* Circle */
.timeline-container::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    right: -10px;
    background-color: white;
    border: 4px solid var(--primary);
    top: 25px;
    border-radius: 50%;
    z-index: 1;
}

.timeline-container.right::after {
    left: -10px;
}

.content {
    padding: 20px 30px;
    background-color: #fcfcfc;
    position: relative;
    border-radius: var(--radius);
    border: 1px solid #eee;
    box-shadow: 0 5px 15px rgba(0,0,0,0.03);
    transition: transform 0.3s ease;
}

.content:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
}

.timeline-date {
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 10px;
    display: block;
    font-size: 1.1rem;
    letter-spacing: 1px;
}

.timeline-container h3 {
    margin-top: 0;
    margin-bottom: 15px;
    font-size: 1.3rem;
}

/* Mobile Responsive Timeline */
@media (max-width: 768px) {
    .timeline::after {
        left: 31px;
    }

    .timeline-container {
        width: 100%;
        padding-left: 70px;
        padding-right: 25px;
    }

    .timeline-container.left::after {
        left: 21px; /* Force left alignment for circle on mobile */
    }

    .timeline-container::after {
        left: 21px;
    }

    .timeline-container.right {
        left: 0%;
    }
}