/* 
* PhytoScience - Main Stylesheet
* A formal, scientific design for phytotherapy research center
*/

/* Base Variables */
:root {
    --primary-color: #2c4c3b;
    --primary-light: #3d6851;
    --primary-dark: #1c362a;
    --secondary-color: #d8c9ad;
    --secondary-light: #e5dac7;
    --secondary-dark: #c2b090;
    --accent-color: #745c43;
    --text-color: #333333;
    --text-light: #707070;
    --text-dark: #1a1a1a;
    --background-light: #f8f8f8;
    --background-medium: #eaeaea;
    --background-dark: #2a2a2a;
    --white: #ffffff;
    --off-white: #f5f5f5;
    --light-gray: #e0e0e0;
    --medium-gray: #b0b0b0;
    --dark-gray: #505050;
    --black: #000000;
    --success: #4a7c59;
    --warning: #d4a373;
    --error: #a3423c;
    
    --font-primary: 'Roboto', sans-serif;
    --font-secondary: 'Lora', serif;
    
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    
    --border-radius-sm: 3px;
    --border-radius-md: 5px;
    --border-radius-lg: 8px;
    
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 5rem;
    
    --transition-fast: all 0.2s ease;
    --transition-medium: all 0.3s ease;
    --transition-slow: all 0.5s ease;
    
    --container-max-width: 1200px;
    --container-padding: 1.5rem;
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-weight: 400;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-secondary);
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: 2.75rem;
}

h2 {
    font-size: 2.25rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

h5 {
    font-size: 1.125rem;
}

h6 {
    font-size: 1rem;
}

p {
    margin-bottom: var(--spacing-md);
}

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

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

ul, ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

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

.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* Utility Classes */
.text-center {
    text-align: center;
}

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

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

.lead {
    font-size: 1.125rem;
    font-weight: 400;
    line-height: 1.7;
    color: var(--text-dark);
}

.small {
    font-size: 0.875rem;
}

.muted {
    color: var(--text-light);
}

/* Buttons */
.btn-primary, .btn-secondary {
    display: inline-block;
    font-family: var(--font-primary);
    font-weight: 500;
    font-size: 0.875rem;
    text-align: center;
    padding: 0.75rem 1.5rem;
    cursor: pointer;
    border: 2px solid transparent;
    border-radius: var(--border-radius-sm);
    transition: var(--transition-medium);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

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

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

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

/* Header */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--white);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition-medium);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.logo a {
    display: flex;
    align-items: center;
    color: var(--primary-dark);
    text-decoration: none;
}

.logo-icon {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-right: var(--spacing-sm);
}

.logo-text {
    font-family: var(--font-secondary);
    font-size: 1.5rem;
    font-weight: 600;
}

.main-nav ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

.main-nav li {
    margin-left: var(--spacing-lg);
}

.main-nav a {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-color);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: var(--spacing-sm) 0;
    position: relative;
}

.main-nav a:not(.btn-primary):after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition-medium);
}

.main-nav a:not(.btn-primary):hover {
    color: var(--primary-color);
}

.main-nav a:not(.btn-primary):hover:after {
    width: 100%;
}

.main-nav .btn-primary {
    padding: 0.5rem 1rem;
    margin-top: -0.5rem;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    width: 30px;
    height: 30px;
    position: relative;
    cursor: pointer;
}

.mobile-menu-toggle span {
    display: block;
    position: absolute;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition-medium);
}

.mobile-menu-toggle span:nth-child(1) {
    top: 6px;
}

.mobile-menu-toggle span:nth-child(2) {
    top: 14px;
}

.mobile-menu-toggle span:nth-child(3) {
    top: 22px;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg);
    top: 14px;
}

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

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg);
    top: 14px;
}

/* Hero Section */
.hero {
    background-color: var(--background-light);
    position: relative;
    padding: calc(100px + var(--spacing-xxl)) 0 var(--spacing-xxl);
    border-bottom: 1px solid var(--light-gray);
}

.hero:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(44, 76, 59, 0.05), transparent);
    z-index: 1;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 2;
    padding: 0 var(--container-padding);
}

.hero h1 {
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
    color: var(--primary-dark);
}

.hero h2 {
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--primary-light);
    margin-bottom: var(--spacing-lg);
    font-style: italic;
}

.hero p {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

/* Section Styles */
section {
    padding: var(--spacing-xxl) 0;
}

section:nth-child(even) {
    background-color: var(--background-light);
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
}

.section-tag {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.section-divider {
    width: 60px;
    height: 3px;
    background-color: var(--primary-color);
    margin: var(--spacing-md) auto;
}

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.about-text {
    padding-right: var(--spacing-lg);
}

.about-metrics {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.metric-item {
    background-color: var(--white);
    padding: var(--spacing-lg);
    text-align: center;
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-sm);
}

.metric-number {
    font-family: var(--font-secondary);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    line-height: 1;
}

.metric-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-light);
    line-height: 1.3;
}

/* Solutions Section */
.solutions-intro {
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
    text-align: center;
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.solution-card {
    background-color: var(--white);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-medium);
    display: flex;
    flex-direction: column;
}

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

.solution-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--primary-light);
    color: var(--white);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

.solution-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    color: var(--primary-dark);
}

.solution-card p {
    margin-bottom: var(--spacing-md);
    font-size: 0.9375rem;
    flex-grow: 1;
}

.solution-compounds {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.compound {
    font-size: 0.75rem;
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--background-light);
    border-radius: var(--border-radius-sm);
    color: var(--primary-dark);
}

/* Methodology Section */
.methodology-intro {
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
    text-align: center;
}

.methodology-stages {
    counter-reset: stage;
}

.methodology-stage {
    position: relative;
    padding-left: 80px;
    margin-bottom: var(--spacing-xl);
}

.methodology-stage:last-child {
    margin-bottom: 0;
}

.stage-number {
    position: absolute;
    left: 0;
    top: 0;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: var(--white);
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: var(--font-secondary);
    font-weight: 700;
    font-size: 1.25rem;
}

.methodology-stage h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--primary-dark);
}

.methodology-stage p {
    max-width: 900px;
}

/* Studies Section */
.studies-intro {
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
    text-align: center;
}

.studies-list {
    margin-bottom: var(--spacing-xl);
}

.study-item {
    display: flex;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--light-gray);
}

.study-item:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.study-meta {
    flex: 0 0 200px;
    padding-right: var(--spacing-lg);
}

.study-year {
    font-family: var(--font-secondary);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.study-type {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-light);
}

.study-content h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-dark);
}

.study-journal {
    font-style: italic;
    font-size: 0.875rem;
    color: var(--text-light);
}

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

/* Consultations Section */
.consultations-intro {
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
    text-align: center;
}

.consultations-process {
    margin-bottom: var(--spacing-xl);
}

.process-step {
    display: flex;
    margin-bottom: var(--spacing-lg);
}

.process-step:last-child {
    margin-bottom: 0;
}

.step-number {
    flex: 0 0 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 700;
    margin-right: var(--spacing-md);
}

.step-content h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--primary-dark);
}

.consultation-types {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.consultation-type {
    background-color: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-md);
    transition: var(--transition-medium);
    border: 1px solid var(--light-gray);
}

.consultation-type.featured {
    border-color: var(--primary-color);
    border-width: 2px;
}

.consultation-type h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    color: var(--primary-dark);
    text-align: center;
}

.consultation-features {
    list-style: none;
    padding: 0;
    margin-bottom: var(--spacing-lg);
}

.consultation-features li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: var(--spacing-sm);
    font-size: 0.9375rem;
}

.consultation-features li:before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 0;
    color: var(--primary-color);
    font-weight: 700;
}

.consultation-price {
    font-family: var(--font-secondary);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-align: center;
}

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

/* Testimonials Section */
.testimonials-section {
    background-color: var(--primary-dark);
    color: var(--white);
    padding: var(--spacing-xl) 0;
}

.testimonials-section .section-header {
    margin-bottom: var(--spacing-lg);
}

.testimonials-section .section-tag {
    color: var(--secondary-light);
}

.testimonials-section h2 {
    color: var(--white);
}

.testimonials-section .section-divider {
    background-color: var(--secondary-light);
}

.testimonial {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.testimonial-content {
    position: relative;
    padding: 0 var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.testimonial-content:before,
.testimonial-content:after {
    content: '"';
    font-family: Georgia, serif;
    font-size: 4em;
    position: absolute;
    color: rgba(255, 255, 255, 0.2);
}

.testimonial-content:before {
    left: 0;
    top: -20px;
}

.testimonial-content:after {
    right: 0;
    bottom: -40px;
}

.testimonial-content p {
    font-family: var(--font-secondary);
    font-size: 1.125rem;
    line-height: 1.8;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    justify-content: center;
}

.author-details h4 {
    color: var(--white);
    margin-bottom: var(--spacing-xs);
}

.author-details p {
    font-size: 0.875rem;
    color: var(--secondary-light);
    margin: 0;
}

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}

.info-item {
    display: flex;
    margin-bottom: var(--spacing-lg);
}

.info-icon {
    flex: 0 0 40px;
    height: 40px;
    background-color: var(--primary-light);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-right: var(--spacing-md);
}

.info-text h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
}

.info-note {
    font-size: 0.875rem;
    color: var(--text-light);
    margin-top: var(--spacing-xs);
}

.contact-hours {
    margin-top: var(--spacing-lg);
}

.contact-hours h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
}

.hours-table {
    width: 100%;
    border-collapse: collapse;
}

.hours-table td {
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid var(--light-gray);
}

.hours-table td:first-child {
    font-weight: 500;
}

.hours-table tr:last-child td {
    border-bottom: none;
}

.contact-form {
    background-color: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-md);
}

.contact-form h3 {
    margin-bottom: var(--spacing-lg);
    text-align: center;
    color: var(--primary-dark);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

input,
select,
textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--light-gray);
    border-radius: var(--border-radius-sm);
    font-family: var(--font-primary);
    font-size: 0.9375rem;
    transition: var(--transition-fast);
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(44, 76, 59, 0.1);
}

.checkbox {
    display: flex;
    align-items: flex-start;
}

.checkbox input {
    width: auto;
    margin-right: var(--spacing-sm);
    margin-top: 0.25rem;
}

.checkbox label {
    margin: 0;
    font-weight: 400;
    font-size: 0.875rem;
}

button[type="submit"] {
    width: 100%;
    border: none;
    cursor: pointer;
}

/* Footer */
.site-footer {
    background-color: var(--background-dark);
    color: var(--white);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.footer-main {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

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

.footer-logo .logo-icon {
    font-size: 1.5rem;
    color: var(--secondary-light);
    margin-bottom: var(--spacing-sm);
}

.footer-logo .logo-text {
    font-family: var(--font-secondary);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.footer-logo p {
    font-size: 0.875rem;
    opacity: 0.8;
}

.footer-nav h3,
.footer-contact h3 {
    font-size: 1.125rem;
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.footer-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-nav li {
    margin-bottom: var(--spacing-sm);
}

.footer-nav a {
    color: var(--secondary-light);
    font-size: 0.875rem;
}

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

.footer-contact p {
    display: flex;
    align-items: center;
    font-size: 0.875rem;
    margin-bottom: var(--spacing-sm);
    opacity: 0.8;
}

.footer-contact i {
    margin-right: var(--spacing-sm);
    color: var(--secondary-light);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.copyright {
    font-size: 0.875rem;
    opacity: 0.8;
}

.footer-links {
    display: flex;
    gap: var(--spacing-md);
}

.footer-links a {
    font-size: 0.875rem;
    color: var(--secondary-light);
}

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

/* Responsive Design */
@media (max-width: 1024px) {
    html {
        font-size: 15px;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .about-text {
        padding-right: 0;
        margin-bottom: var(--spacing-lg);
    }
    
    .about-metrics {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .study-item {
        flex-direction: column;
    }
    
    .study-meta {
        flex: 0 0 auto;
        display: flex;
        align-items: center;
        gap: var(--spacing-md);
        padding-right: 0;
        margin-bottom: var(--spacing-sm);
    }
    
    .study-year {
        margin-bottom: 0;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    .header-inner {
        height: 70px;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .main-nav {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: var(--white);
        padding: var(--spacing-lg);
        transform: translateX(-100%);
        transition: var(--transition-medium);
        overflow-y: auto;
        z-index: 1000;
    }
    
    .main-nav.active {
        transform: translateX(0);
    }
    
    .main-nav ul {
        flex-direction: column;
    }
    
    .main-nav li {
        margin: 0 0 var(--spacing-md);
    }
    
    .main-nav a {
        padding: var(--spacing-sm) 0;
    }
    
    .main-nav .btn-primary {
        display: inline-block;
        margin-top: var(--spacing-md);
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .hero-buttons .btn-primary,
    .hero-buttons .btn-secondary {
        width: 100%;
    }
    
    .solutions-grid {
        grid-template-columns: 1fr;
    }
    
    .consultation-types {
        grid-template-columns: 1fr;
    }
    
    .about-metrics {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .methodology-stage {
        padding-left: 0;
        padding-top: 70px;
    }
    
    .stage-number {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .process-step {
        flex-direction: column;
        text-align: center;
    }
    
    .step-number {
        margin: 0 auto var(--spacing-sm);
    }
}