/* Global Styles
----------------------------------------*/
:root {
    /* Main Colors */
    --primary-color: #3EB489;
    --primary-dark: #2A7F62;
    --primary-light: #A8E0C9;
    --secondary-color: #1A5F76;
    --secondary-light: #6FA0B0;
    
    /* Neutral Colors */
    --neutral-dark: #333333;
    --neutral-medium: #666666;
    --neutral-light: #999999;
    --neutral-lightest: #F5F5F5;
    
    /* Accent Colors */
    --accent-1: #FF7E45;
    --accent-2: #FFC154;
    --accent-3: #5C7AFF;
    
    /* Functional Colors */
    --text-color: #333333;
    --background-color: #FFFFFF;
    --error-color: #E74C3C;
    --success-color: #27AE60;
    
    /* Font Families */
    --heading-font: 'Montserrat', sans-serif;
    --body-font: 'Open Sans', sans-serif;
    
    /* Spacing Variables */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Border Radius */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Box Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--body-font);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--heading-font);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--neutral-dark);
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

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

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

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

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

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

.section-padding {
    padding: var(--spacing-xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.divider {
    width: 60px;
    height: 4px;
    background-color: var(--primary-color);
    margin: var(--spacing-sm) auto;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    font-family: var(--heading-font);
    font-weight: 600;
    font-size: 1rem;
    text-align: center;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
}

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

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

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

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

.btn-small {
    padding: 8px 16px;
    font-size: 0.875rem;
}

/* Form Styles */
.form-group {
    margin-bottom: var(--spacing-sm);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: var(--border-radius-sm);
    font-family: var(--body-font);
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-error {
    background-color: rgba(231, 76, 60, 0.1);
    border-left: 4px solid var(--error-color);
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    border-radius: var(--border-radius-sm);
}

.form-error p {
    color: var(--error-color);
    margin: 0;
}

.form-note {
    font-size: 0.875rem;
    color: var(--neutral-medium);
    margin-top: var(--spacing-xs);
}

.form-disclaimer {
    font-size: 0.75rem;
    color: var(--neutral-medium);
    margin-top: var(--spacing-xs);
}

/* Header Styles
----------------------------------------*/
#header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    padding: var(--spacing-xs) 0;
    transition: all var(--transition-medium);
}

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

.logo {
    max-width: 200px;
}

.main-nav {
    display: flex;
    align-items: center;
}

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

.nav-links li {
    margin-left: var(--spacing-md);
}

.nav-links a {
    color: var(--neutral-dark);
    font-weight: 500;
    font-family: var(--heading-font);
    font-size: 1rem;
    position: relative;
    padding-bottom: 5px;
}

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

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--neutral-dark);
    margin: 5px 0;
    transition: all var(--transition-fast);
}

/* Hero Section Styles
----------------------------------------*/
#hero {
    height: 100vh;
    min-height: 600px;
    background-image: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('images/hero-bg.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    margin-top: 70px; /* Account for fixed header */
}

.hero-content {
    max-width: 800px;
    padding: var(--spacing-md);
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-sm);
    color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* About Section Styles
----------------------------------------*/
.about-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.about-text {
    flex: 1;
}

.about-image {
    flex: 1;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-text p:last-child {
    margin-bottom: 0;
}

/* Macronutrient Sections Styles
----------------------------------------*/
.macronutrient-section {
    padding: var(--spacing-lg) 0;
}

.nutrient-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nutrient-content.reverse {
    flex-direction: row-reverse;
}

.nutrient-image {
    flex: 1;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.nutrient-text {
    flex: 1;
}

.nutrient-text h2 {
    color: var(--primary-dark);
    margin-bottom: var(--spacing-sm);
}

.nutrient-text h2 span {
    color: var(--secondary-color);
    font-weight: 400;
}

.nutrient-text h3 {
    color: var(--neutral-dark);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-xs);
    font-size: 1.25rem;
}

.source-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: var(--spacing-sm);
}

.source-list span,
.examples span {
    display: inline-block;
    padding: 6px 12px;
    background-color: var(--primary-light);
    color: var(--primary-dark);
    border-radius: var(--border-radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
}

.examples {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: var(--spacing-xs);
}

.highlight {
    background-color: var(--neutral-lightest);
    padding: var(--spacing-sm);
    border-left: 4px solid var(--primary-color);
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    margin-top: var(--spacing-md);
}

/* Proteins Section Specific Styles */
#proteins {
    background-color: var(--neutral-lightest);
}

/* Fats Section Specific Styles */
.fat-types {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-sm);
    margin: var(--spacing-sm) 0;
}

.fat-type {
    background-color: var(--neutral-lightest);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-sm);
}

.fat-type h4 {
    color: var(--secondary-color);
    margin-bottom: var(--spacing-xs);
    font-size: 1.1rem;
}

.fat-type p {
    font-size: 0.9rem;
    margin: 0;
}

/* Carbs Section Specific Styles */
.carb-types {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-md) 0;
}

.carb-type {
    background-color: var(--neutral-lightest);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-sm);
}

.carb-type h3 {
    color: var(--primary-dark);
    margin-top: 0;
    font-size: 1.2rem;
}

/* Balance Section Styles
----------------------------------------*/
#balance {
    background-color: var(--neutral-lightest);
}

.balance-content {
    max-width: 900px;
    margin: 0 auto;
}

.balance-text {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.balance-chart {
    margin-bottom: var(--spacing-lg);
}

.chart-container {
    background-color: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.chart-header {
    background-color: var(--secondary-color);
    color: white;
    padding: var(--spacing-sm);
    text-align: center;
}

.chart-header h3 {
    color: white;
    margin: 0;
}

.chart-content {
    display: flex;
    flex-wrap: wrap;
}

.chart-column {
    flex: 1;
    min-width: 200px;
    padding: var(--spacing-sm);
    border-right: 1px solid #eee;
}

.chart-column:last-child {
    border-right: none;
}

.chart-title {
    text-align: center;
    font-weight: 700;
    padding: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-family: var(--heading-font);
}

.chart-title.deficiency {
    background-color: #FFECB3;
    color: #E6A100;
}

.chart-title.balance {
    background-color: #C8E6C9;
    color: #2E7D32;
}

.chart-title.excess {
    background-color: #FFCDD2;
    color: #C62828;
}

.nutrient-row {
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid #eee;
}

.nutrient-row:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.nutrient-label {
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--primary-dark);
}

.nutrient-effects ul {
    margin: 0;
    padding-left: 20px;
    font-size: 0.9rem;
}

.nutrient-effects.centered {
    display: flex;
    justify-content: center;
    height: 100%;
}

.nutrient-effects.centered ul {
    columns: 2;
}

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

.macro-ratio {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin: var(--spacing-md) 0;
}

.ratio-item {
    text-align: center;
    min-width: 120px;
}

.ratio-percent {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: var(--spacing-xs);
}

.ratio-label {
    font-family: var(--heading-font);
    font-weight: 600;
}

/* Subscription Section Styles
----------------------------------------*/
#subscription {
    background-color: var(--primary-color);
    color: white;
    text-align: center;
}

.subscription-content {
    max-width: 600px;
    margin: 0 auto;
}

.subscription-content h2 {
    color: white;
}

.subscription-form {
    margin-top: var(--spacing-md);
}

.subscription-form .form-group {
    display: flex;
    margin: 0 auto;
    max-width: 500px;
}

.subscription-form input {
    flex: 1;
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
    border: none;
}

.subscription-form button {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

.subscription-form .form-disclaimer {
    color: rgba(255, 255, 255, 0.8);
    margin-top: var(--spacing-sm);
}

.subscription-form .form-disclaimer a {
    color: white;
    text-decoration: underline;
}

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

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

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

.contact-form .full-width {
    grid-column: 1 / -1;
}

.contact-map {
    display: flex;
    flex-direction: column;
}

.map-container {
    flex: 1;
    min-height: 300px;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-md);
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-sm);
}

.info-item {
    padding: var(--spacing-sm);
    background-color: white;
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-sm);
}

.info-item h3 {
    color: var(--primary-dark);
    margin-bottom: var(--spacing-xs);
    font-size: 1.1rem;
}

.info-item p {
    margin: 0;
    font-size: 0.9rem;
}

/* Footer Styles
----------------------------------------*/
#footer {
    background-color: var(--neutral-dark);
    color: white;
    padding: var(--spacing-lg) 0 var(--spacing-sm);
}

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

.footer-logo {
    max-width: 150px;
}

.footer-logo img {
    margin-bottom: var(--spacing-sm);
}

.footer-links h3 {
    color: white;
    margin-bottom: var(--spacing-sm);
    font-size: 1.1rem;
}

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

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    transition: color var(--transition-fast);
}

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

.footer-newsletter p {
    margin-bottom: var(--spacing-sm);
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
}

.footer-form .form-group {
    display: flex;
}

.footer-form input {
    flex: 1;
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
}

.footer-form input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
}

/* Success Page Styles
----------------------------------------*/
#success {
    margin-top: 70px; /* Account for fixed header */
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.success-content {
    text-align: center;
    max-width: 600px;
    padding: var(--spacing-lg);
    background-color: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
}

.success-icon {
    margin-bottom: var(--spacing-md);
}

.success-content h1 {
    color: var(--primary-dark);
    margin-bottom: var(--spacing-sm);
}

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

/* Policy Pages Styles
----------------------------------------*/
.policy-page {
    margin-top: 70px; /* Account for fixed header */
    padding: var(--spacing-lg) 0;
}

.policy-container {
    max-width: 900px;
    margin: 0 auto;
    background-color: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-lg);
}

.policy-header {
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.policy-header h1 {
    color: var(--primary-dark);
}

.policy-content h2 {
    color: var(--secondary-color);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    font-size: 1.5rem;
}

.policy-content h3 {
    margin-top: var(--spacing-md);
    font-size: 1.25rem;
}

.policy-content p,
.policy-content ul {
    margin-bottom: var(--spacing-sm);
}

.policy-content ul li {
    margin-bottom: var(--spacing-xs);
}

.policy-content a {
    color: var(--primary-color);
    text-decoration: underline;
}

.policy-date {
    font-style: italic;
    color: var(--neutral-medium);
    margin-top: var(--spacing-lg);
    font-size: 0.875rem;
}

/* Responsive Styles
----------------------------------------*/
@media (max-width: 1024px) {
    h1 {
        font-size: 2.25rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    .hero-content h1 {
        font-size: 3rem;
    }
    
    .section-padding {
        padding: var(--spacing-lg) 0;
    }
}

@media (max-width: 768px) {
    /* Navigation */
    .menu-toggle {
        display: block;
    }
    
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: white;
        flex-direction: column;
        align-items: center;
        padding: var(--spacing-md) 0;
        box-shadow: var(--shadow-md);
        transform: translateY(-150%);
        transition: transform var(--transition-medium);
        z-index: 999;
    }
    
    .nav-links.active {
        transform: translateY(0);
    }
    
    .nav-links li {
        margin: var(--spacing-xs) 0;
    }
    
    /* Layout changes */
    .about-content,
    .nutrient-content,
    .nutrient-content.reverse,
    .contact-content {
        flex-direction: column;
        grid-template-columns: 1fr;
    }
    
    .nutrient-image {
        margin-bottom: var(--spacing-md);
    }
    
    .contact-form {
        grid-template-columns: 1fr;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .fat-types,
    .carb-types {
        grid-template-columns: 1fr;
    }
    
    .nutrient-effects.centered ul {
        columns: 1;
    }
    
    .macro-ratio {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .subscription-form .form-group {
        flex-direction: column;
    }
    
    .subscription-form input {
        border-radius: var(--border-radius-sm);
        margin-bottom: var(--spacing-xs);
    }
    
    .subscription-form button {
        border-radius: var(--border-radius-sm);
        width: 100%;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .section-header {
        margin-bottom: var(--spacing-md);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .footer-logo {
        margin: 0 auto var(--spacing-sm);
    }
}