/* ========================================
   Regenerative Eating Guide 2026 - Styles
   Mobile-First Responsive Design
   ======================================== */

/* CSS Variables for consistent theming */
:root {
    /* Color Palette - Earth tones and natural colors */
    --primary-green: #2d5016;
    --primary-light: #4a7c28;
    --primary-dark: #1a3009;
    --accent-gold: #d4a574;
    --accent-orange: #e67e22;
    --earth-brown: #8b4513;
    --sky-blue: #87ceeb;

    /* Neutral colors */
    --white: #ffffff;
    --off-white: #fafaf8;
    --light-gray: #f4f4f2;
    --gray: #a8a8a8;
    --dark-gray: #4a4a4a;
    --black: #1a1a1a;

    /* Seasonal colors */
    --spring: #9acd32;
    --summer: #ffd700;
    --fall: #ff8c00;
    --winter: #4682b4;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;

    /* Layout */
    --max-width: 1200px;
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

/* ========================================
   Reset & Base Styles
   ======================================== */

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

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

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

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

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

ul {
    list-style: none;
}

/* ========================================
   Typography
   ======================================== */

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

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-family: var(--font-display);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-family: var(--font-display);
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
}

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

/* ========================================
   Layout Components
   ======================================== */

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

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

/* ========================================
   Navigation
   ======================================== */

.navbar {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm);
}

.nav-brand .logo {
    font-size: 1.25rem;
    color: var(--primary-green);
    font-weight: 700;
}

.nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--primary-green);
    border-radius: 2px;
    transition: var(--transition);
}

.nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--white);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    padding: var(--spacing-sm);
}

.nav-menu.active {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.nav-link {
    padding: var(--spacing-xs) var(--spacing-sm);
    color: var(--dark-gray);
    font-weight: 500;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.nav-link:hover {
    background-color: var(--light-gray);
    color: var(--primary-green);
}

/* ========================================
   Hero Section
   ======================================== */

.hero {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--primary-light) 100%);
    color: var(--white);
    padding: var(--spacing-xl) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="2" fill="rgba(255,255,255,0.1)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-sm);
}

.hero-title {
    color: var(--white);
    margin-bottom: var(--spacing-sm);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--accent-gold);
}

.hero-description {
    font-size: clamp(1rem, 2vw, 1.125rem);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

/* ========================================
   Buttons
   ======================================== */

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background-color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

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

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

/* ========================================
   Section Titles
   ======================================== */

.section-title {
    text-align: center;
    color: var(--primary-green);
    margin-bottom: var(--spacing-md);
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-green), var(--accent-gold));
    border-radius: 2px;
}

.section-intro {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-md);
    font-size: 1.125rem;
    color: var(--dark-gray);
}

/* ========================================
   About Section
   ======================================== */

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

.about-grid {
    display: grid;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.about-card {
    background-color: var(--light-gray);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition);
}

.about-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.about-card h3 {
    color: var(--primary-green);
    margin-bottom: var(--spacing-sm);
}

/* ========================================
   Principles Section
   ======================================== */

.principles {
    background-color: var(--off-white);
}

.principles-grid {
    display: grid;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.principle-card {
    background-color: var(--white);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-green);
    transition: var(--transition);
}

.principle-card:hover {
    border-left-width: 8px;
    transform: translateX(5px);
}

.principle-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-gold);
    font-family: var(--font-display);
    margin-bottom: var(--spacing-sm);
}

.principle-card h3 {
    color: var(--primary-green);
    margin-bottom: var(--spacing-sm);
}

/* ========================================
   Guides Section
   ======================================== */

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

.guide-steps {
    margin-top: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.step {
    background-color: var(--light-gray);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: var(--transition);
}

.step:hover {
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.step-header {
    background: linear-gradient(135deg, var(--primary-green), var(--primary-light));
    color: var(--white);
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.step-number {
    background-color: var(--accent-gold);
    color: var(--primary-dark);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-weight: 700;
    font-size: 0.875rem;
}

.step-header h3 {
    margin: 0;
    font-size: 1.25rem;
}

.step-content {
    padding: var(--spacing-md);
}

.step-content ul {
    list-style: none;
    padding-left: 0;
}

.step-content li {
    padding: var(--spacing-xs) 0;
    padding-left: 1.5rem;
    position: relative;
}

.step-content li::before {
    content: '🌱';
    position: absolute;
    left: 0;
}

.step-content strong {
    color: var(--primary-green);
}

/* ========================================
   Seasonal Foods Section
   ======================================== */

.seasonal-foods {
    background-color: var(--off-white);
}

.seasons-grid {
    display: grid;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.season-card {
    background-color: var(--white);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    border-top: 4px solid;
    transition: var(--transition);
}

.season-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.season-card.spring {
    border-top-color: var(--spring);
}

.season-card.summer {
    border-top-color: var(--summer);
}

.season-card.fall {
    border-top-color: var(--fall);
}

.season-card.winter {
    border-top-color: var(--winter);
}

.season-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-green);
}

.season-foods {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.food-tag {
    background-color: var(--light-gray);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--dark-gray);
    transition: var(--transition);
}

.food-tag:hover {
    background-color: var(--primary-green);
    color: var(--white);
    transform: scale(1.05);
}

/* ========================================
   Indigenous Crops Section
   ======================================== */

.indigenous-crops {
    background-color: var(--white);
}

.crops-grid {
    display: grid;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.crop-card {
    background-color: var(--light-gray);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.crop-card:hover {
    background-color: var(--white);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
    transform: translateY(-5px);
}

.crop-card h3 {
    color: var(--primary-green);
    margin-bottom: 0.25rem;
}

.crop-subtitle {
    color: var(--gray);
    font-size: 0.875rem;
    font-style: italic;
    margin-bottom: var(--spacing-sm);
    display: block;
}

.crop-benefits {
    margin-top: var(--spacing-sm);
    padding-top: var(--spacing-sm);
    border-top: 2px solid var(--accent-gold);
    font-size: 0.875rem;
    color: var(--dark-gray);
}

.crop-benefits strong {
    color: var(--primary-green);
}

/* ========================================
   Recipes Section
   ======================================== */

.recipes {
    background-color: var(--off-white);
}

.recipes-grid {
    display: grid;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.recipe-card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: var(--transition);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.recipe-card:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    transform: translateY(-5px);
}

.recipe-header {
    background: linear-gradient(135deg, var(--primary-green), var(--primary-light));
    color: var(--white);
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.recipe-header h3 {
    margin: 0;
    font-size: 1.25rem;
}

.recipe-season {
    background-color: var(--accent-gold);
    color: var(--primary-dark);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.recipe-description {
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--dark-gray);
}

.recipe-details {
    padding: 0 var(--spacing-md);
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--gray);
    margin-bottom: var(--spacing-sm);
}

.recipe-ingredients {
    padding: var(--spacing-sm) var(--spacing-md) var(--spacing-md);
    list-style: none;
}

.recipe-ingredients li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--dark-gray);
}

.recipe-ingredients li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-green);
    font-weight: 700;
}

/* ========================================
   Benefits Section
   ======================================== */

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

.benefits-grid {
    display: grid;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.benefit-card {
    background-color: var(--light-gray);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.benefit-card:hover {
    background-color: var(--white);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.benefit-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.benefit-card h3 {
    color: var(--primary-green);
    margin-bottom: var(--spacing-sm);
}

.benefit-content p {
    margin-bottom: var(--spacing-sm);
    line-height: 1.7;
}

.benefit-content strong {
    color: var(--primary-dark);
    font-weight: 600;
}

/* ========================================
   FAQ Section
   ======================================== */

.faq {
    background-color: var(--off-white);
}

.faq-container {
    max-width: 800px;
    margin: var(--spacing-md) auto 0;
}

.faq-item {
    background-color: var(--white);
    margin-bottom: var(--spacing-sm);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.faq-question {
    width: 100%;
    text-align: left;
    background-color: var(--white);
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--primary-green);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.faq-question:hover {
    background-color: var(--light-gray);
}

.faq-icon {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--accent-gold);
    transition: transform 0.3s ease;
}

.faq-question[aria-expanded="true"] .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-answer.active {
    max-height: 2000px;
}

.faq-answer p,
.faq-answer ul {
    padding: 0 var(--spacing-md) var(--spacing-sm);
}

.faq-answer ul {
    list-style: none;
}

.faq-answer li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.faq-answer li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary-green);
}

.faq-answer strong {
    color: var(--primary-green);
}

/* ========================================
   Call to Action Section
   ======================================== */

.cta {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-green) 100%);
    color: var(--white);
    text-align: center;
}

.cta-content h2 {
    color: var(--white);
    margin-bottom: var(--spacing-sm);
}

.cta-content p {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    max-width: 400px;
    margin: 0 auto;
}

/* ========================================
   Footer
   ======================================== */

.footer {
    background-color: var(--primary-dark);
    color: var(--white);
    padding: var(--spacing-xl) 0 var(--spacing-sm);
}

.footer-content {
    display: grid;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.footer-section h3,
.footer-section h4 {
    color: var(--accent-gold);
    margin-bottom: var(--spacing-sm);
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: var(--white);
    opacity: 0.8;
    transition: var(--transition);
}

.footer-section a:hover {
    opacity: 1;
    color: var(--accent-gold);
}

.footer-keywords {
    font-size: 0.875rem;
    color: var(--gray);
    line-height: 1.8;
}

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

/* ========================================
   Tablet Styles (768px and up)
   ======================================== */

@media (min-width: 768px) {
    .nav-toggle {
        display: none;
    }

    .nav-menu {
        display: flex;
        position: static;
        flex-direction: row;
        box-shadow: none;
        padding: 0;
        gap: var(--spacing-sm);
    }

    .hero-cta {
        flex-direction: row;
        justify-content: center;
    }

    .about-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .principles-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .seasons-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .crops-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .recipes-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .benefits-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }

    .cta-buttons {
        flex-direction: row;
        justify-content: center;
        max-width: none;
    }
}

/* ========================================
   Desktop Styles (1024px and up)
   ======================================== */

@media (min-width: 1024px) {
    .section {
        padding: 5rem 0;
    }

    .principles-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .seasons-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .crops-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .recipes-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .benefits-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .footer-content {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ========================================
   Utility Classes
   ======================================== */

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

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

/* ========================================
   Accessibility
   ======================================== */

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Focus styles for keyboard navigation */
a:focus,
button:focus {
    outline: 2px solid var(--accent-gold);
    outline-offset: 2px;
}

/* ========================================
   Print Styles
   ======================================== */

@media print {
    .navbar,
    .hero-cta,
    .cta,
    .footer {
        display: none;
    }

    body {
        background-color: white;
        color: black;
    }

    .section {
        page-break-inside: avoid;
    }
}