/* Microbiome - Main Stylesheet */
/* Mobile-first Responsive Design */

:root {
    --primary: #0A3B6D;
    --secondary: #2D5016;
    --accent: #00897B;
    --light-bg: #F5F7FA;
    --dark-text: #1a1a1a;
    --light-text: #555;
    --border-color: #E0E7F1;
    --success: #27ae60;
    --danger: #e74c3c;
    --warning: #f39c12;
    --shadow: 0 2px 10px rgba(10,59,109,0.08);
    --shadow-lg: 0 10px 30px rgba(10,59,109,0.15);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--dark-text);
    background-color: #fff;
    line-height: 1.6;
    font-size: 14px;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 1rem;
    color: var(--dark-text);
}

h1 { font-size: 2rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }
h6 { font-size: 1rem; }

p { margin-bottom: 1rem; color: var(--light-text); }

a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

/* ===== BUTTONS ===== */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 6px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    font-size: 14px;
}

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

.btn-primary:hover {
    background: #082856;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
    background: #1f3710;
    transform: translateY(-2px);
}

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

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

.btn-lg {
    padding: 14px 32px;
    font-size: 16px;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 12px;
}

/* ===== CONTAINER ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.section-padding {
    padding: 40px 0;
}

.section-padding-lg {
    padding: 60px 0;
}

/* ===== HEADER & NAVIGATION ===== */
header {
    background: white;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-top {
    background: var(--primary);
    color: white;
    padding: 10px 0;
    font-size: 13px;
}

.header-top a {
    color: white;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.logo span {
    color: var(--secondary);
}

nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: 20px 0;
    box-shadow: var(--shadow);
}

nav.active {
    display: flex;
}

nav a {
    padding: 10px 15px;
    color: var(--dark-text);
    font-weight: 500;
}

nav a:hover {
    color: var(--primary);
    background: var(--light-bg);
}

.menu-toggle {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--primary);
}

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

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 500px;
    height: 500px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(20px); }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 15px;
    color: white;
    animation: slideInDown 0.8s ease;
}

.hero .tagline {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.95;
    animation: slideInUp 0.8s ease 0.2s both;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
    animation: slideInUp 0.8s ease 0.4s both;
}

@keyframes slideInDown {
    from { opacity: 0; transform: translateY(-30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===== FEATURES/SERVICES GRID ===== */
.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    margin-top: 30px;
}

.service-card {
    background: white;
    padding: 25px;
    border-radius: 8px;
    border-left: 4px solid var(--primary);
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

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

.service-card h3 {
    color: var(--primary);
    margin-bottom: 12px;
}

.service-icon {
    font-size: 36px;
    margin-bottom: 15px;
    display: inline-block;
}

/* ===== ABOUT SECTION ===== */
.about-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    align-items: center;
}

.about-text h2 {
    color: var(--primary);
    margin-bottom: 20px;
}

.about-text p {
    margin-bottom: 15px;
    line-height: 1.8;
}

.values-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    margin-top: 25px;
}

.value-item {
    background: var(--light-bg);
    padding: 20px;
    border-radius: 6px;
    border-top: 4px solid var(--secondary);
}

.value-item h4 {
    color: var(--secondary);
    margin-bottom: 10px;
}

/* ===== TESTIMONIALS ===== */
.testimonials-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 25px;
    margin-top: 30px;
}

.testimonial {
    background: white;
    padding: 25px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--secondary);
}

.testimonial-text {
    margin-bottom: 15px;
    font-style: italic;
    color: var(--light-text);
}

.testimonial-author {
    font-weight: 600;
    color: var(--primary);
}

.rating {
    color: #ffc107;
    margin-bottom: 10px;
}

/* ===== FAQ ACCORDION ===== */
.faq-item {
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 15px;
}

.faq-question {
    background: var(--light-bg);
    padding: 15px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.faq-question:hover {
    background: #eee;
    color: var(--primary);
}

.faq-icon {
    transition: transform 0.3s ease;
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 15px;
    display: none;
    color: var(--light-text);
    line-height: 1.8;
}

.faq-item.active .faq-answer {
    display: block;
}

/* ===== FORMS ===== */
.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--dark-text);
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="date"],
select,
textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 14px;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(45, 134, 89, 0.1);
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 15px;
}

/* ===== FOOTER ===== */
footer {
    background: var(--dark-text);
    color: white;
    padding: 40px 0 20px;
    margin-top: 60px;
}

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

.footer-section h4 {
    color: white;
    margin-bottom: 15px;
}

.footer-section a {
    color: #ccc;
    display: block;
    margin-bottom: 8px;
}

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

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.2);
    padding-top: 20px;
    text-align: center;
    color: #999;
}

/* ===== ALERTS & MESSAGES ===== */
.alert {
    padding: 15px;
    border-radius: 4px;
    margin-bottom: 20px;
    animation: slideInDown 0.4s ease;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-info {
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

/* ===== BREADCRUMB ===== */
.breadcrumb {
    display: flex;
    gap: 10px;
    margin-bottom: 25px;
    font-size: 13px;
}

.breadcrumb a {
    color: var(--primary);
}

.breadcrumb span {
    color: #999;
}

/* ===== PAGINATION ===== */
.pagination {
    display: flex;
    gap: 5px;
    justify-content: center;
    margin: 30px 0;
}

.pagination a,
.pagination span {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    transition: all 0.3s ease;
}

.pagination a:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.pagination .active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* ===== UTILITIES ===== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-20 { margin-top: 20px; }
.mb-20 { margin-bottom: 20px; }
.mt-40 { margin-top: 40px; }
.mb-40 { margin-bottom: 40px; }
.py-20 { padding: 20px 0; }
.hidden { display: none; }

/* ===== TABLET STYLES ===== */
@media (min-width: 768px) {
    body { font-size: 15px; }
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    
    .menu-toggle { display: none; }
    
    nav {
        position: static;
        display: flex !important;
        flex-direction: row;
        padding: 0;
        box-shadow: none;
        gap: 30px;
    }
    
    nav a {
        padding: 0;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-content {
        grid-template-columns: 1fr 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .form-row {
        grid-template-columns: 1fr 1fr;
    }
}

/* ===== DESKTOP STYLES ===== */
@media (min-width: 1024px) {
    h1 { font-size: 3rem; }
    
    .hero h1 { font-size: 3.5rem; }
    
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .testimonials-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-content {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ===== LOADING ANIMATION ===== */
.loader {
    border: 4px solid var(--light-bg);
    border-top: 4px solid var(--primary);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}