/* ============================================
   GrappoMilla - Stylesheet
   Palette: crema/ambra/marrone + accent teal
   Mobile-first, responsive, accessible
   ============================================ */

/* ============================================
   CSS Variables (Light & Dark Mode)
   ============================================ */
:root {
    /* Light Mode Colors */
    --color-bg-primary: #FFF8F0;
    --color-bg-secondary: #F5E6D3;
    --color-bg-tertiary: #E8D4B8;
    --color-bg-dark: #8B6F47;
    
    --color-text-primary: #2C2416;
    --color-text-secondary: #5C4A33;
    --color-text-light: #8B7355;
    
    --color-accent-primary: #D4A574;
    --color-accent-secondary: #2A9D8F;
    --color-accent-hover: #238276;
    
    --color-border: #D4C4B0;
    --color-shadow: rgba(44, 36, 22, 0.1);
    --color-shadow-hover: rgba(44, 36, 22, 0.2);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Typography */
    --font-system: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-size-base: 1rem;
    --font-size-sm: 0.875rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.5rem;
    --font-size-xxl: 2rem;
    --font-size-hero: 3rem;
    
    /* Layout */
    --max-width: 1200px;
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

[data-theme="dark"] {
    --color-bg-primary: #1A1410;
    --color-bg-secondary: #2C2416;
    --color-bg-tertiary: #3D3221;
    --color-bg-dark: #4D3F2B;
    
    --color-text-primary: #F5E6D3;
    --color-text-secondary: #D4C4B0;
    --color-text-light: #B0A08A;
    
    --color-accent-primary: #D4A574;
    --color-accent-secondary: #2A9D8F;
    --color-accent-hover: #3DBAA8;
    
    --color-border: #4D3F2B;
    --color-shadow: rgba(0, 0, 0, 0.3);
    --color-shadow-hover: rgba(0, 0, 0, 0.5);
}

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

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

body {
    font-family: var(--font-system);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
}

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

h1 {
    font-size: var(--font-size-hero);
}

h2 {
    font-size: var(--font-size-xxl);
}

h3 {
    font-size: var(--font-size-xl);
}

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

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

a:hover, a:focus {
    color: var(--color-accent-hover);
    text-decoration: underline;
}

a:focus {
    outline: 2px solid var(--color-accent-secondary);
    outline-offset: 2px;
}

/* ============================================
   Layout Utilities
   ============================================ */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

.section-light {
    background-color: var(--color-bg-primary);
}

.section-dark {
    background-color: var(--color-bg-secondary);
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    color: var(--color-text-primary);
}

/* ============================================
   Header & Navigation
   ============================================ */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: var(--color-bg-secondary);
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 2px 8px var(--color-shadow);
    transition: var(--transition);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-text-primary);
}

.dark-mode-toggle {
    background: var(--color-bg-tertiary);
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-xs) var(--spacing-sm);
    cursor: pointer;
    transition: var(--transition);
    font-size: var(--font-size-lg);
}

.dark-mode-toggle:hover {
    background: var(--color-accent-primary);
    transform: scale(1.05);
}

.dark-mode-toggle:focus {
    outline: 2px solid var(--color-accent-secondary);
    outline-offset: 2px;
}

[data-theme="light"] .icon-moon {
    display: inline;
}

[data-theme="light"] .icon-sun {
    display: none;
}

[data-theme="dark"] .icon-moon {
    display: none;
}

[data-theme="dark"] .icon-sun {
    display: inline;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    background: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg-tertiary) 100%);
    padding: var(--spacing-xxl) 0;
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.hero-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

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

.hero-title {
    font-size: clamp(2.5rem, 8vw, 4rem);
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
    text-shadow: 2px 2px 4px var(--color-shadow);
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-secondary);
}

.hero-description {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-light);
}

.cta-button {
    background-color: var(--color-accent-secondary);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-lg);
    font-weight: 600;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 12px var(--color-shadow);
}

.cta-button:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px var(--color-shadow-hover);
}

.cta-button:focus {
    outline: 3px solid var(--color-accent-primary);
    outline-offset: 3px;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    filter: drop-shadow(0 8px 16px var(--color-shadow));
}

/* ============================================
   Proportion Meter
   ============================================ */
.proportion-meter {
    background-color: var(--color-accent-primary);
    padding: var(--spacing-md) 0;
    border-top: 3px solid var(--color-accent-secondary);
    border-bottom: 3px solid var(--color-accent-secondary);
}

.meter-display {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.meter-icon {
    font-size: var(--font-size-xl);
}

.meter-text {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text-primary);
    text-align: center;
}

.meter-refresh {
    background: var(--color-bg-secondary);
    border: 2px solid var(--color-border);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    cursor: pointer;
    transition: var(--transition);
    font-size: var(--font-size-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.meter-refresh:hover {
    transform: rotate(180deg) scale(1.1);
    background: var(--color-accent-secondary);
}

.meter-refresh:focus {
    outline: 2px solid var(--color-text-primary);
    outline-offset: 2px;
}

/* ============================================
   Content Block
   ============================================ */
.content-block {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.content-block p {
    font-size: var(--font-size-lg);
    line-height: 1.8;
    color: var(--color-text-secondary);
}

/* ============================================
   Recipe Card
   ============================================ */
.recipe-card {
    background: var(--color-bg-primary);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    box-shadow: 0 4px 12px var(--color-shadow);
    margin-bottom: var(--spacing-lg);
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.recipe-ingredients h3,
.recipe-instructions h3 {
    color: var(--color-accent-secondary);
    margin-bottom: var(--spacing-sm);
}

.ingredients-list,
.instructions-list {
    padding-left: var(--spacing-md);
    color: var(--color-text-secondary);
}

.ingredients-list li,
.instructions-list li {
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-lg);
}

.disclaimer {
    background: var(--color-bg-tertiary);
    border-left: 4px solid var(--color-accent-secondary);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    text-align: center;
}

.disclaimer p {
    color: var(--color-text-secondary);
    margin: 0;
}

/* ============================================
   Cards Grid
   ============================================ */
.cards-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.card {
    background: var(--color-bg-secondary);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    box-shadow: 0 4px 12px var(--color-shadow);
    transition: var(--transition);
    text-align: center;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px var(--color-shadow-hover);
}

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

.card-title {
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

.card-text {
    color: var(--color-text-secondary);
}

/* ============================================
   Folklore Section
   ============================================ */
.section-folklore {
    background: linear-gradient(135deg, var(--color-bg-tertiary) 0%, var(--color-bg-secondary) 100%);
}

.folklore-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.folklore-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    box-shadow: 0 8px 16px var(--color-shadow);
}

.folklore-text {
    color: var(--color-text-secondary);
}

.folklore-intro {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
}

.folklore-quote {
    background: var(--color-bg-primary);
    border-left: 4px solid var(--color-accent-secondary);
    padding: var(--spacing-md);
    margin-top: var(--spacing-lg);
    font-style: italic;
    border-radius: var(--border-radius);
}

.folklore-quote cite {
    display: block;
    margin-top: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

/* ============================================
   AI Section
   ============================================ */
.section-ai {
    background: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-accent-primary) 100%);
}

.ai-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.ai-icon img {
    max-width: 120px;
    height: auto;
}

.ai-title-block {
    text-align: center;
}

.ai-subtitle {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-accent-secondary);
    margin-top: var(--spacing-xs);
}

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

.ai-content p {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
}

.ai-features {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-sm);
    margin: var(--spacing-lg) 0;
}

.feature-badge {
    background: var(--color-bg-primary);
    border: 2px solid var(--color-accent-secondary);
    border-radius: calc(var(--border-radius) * 2);
    padding: var(--spacing-xs) var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: var(--transition);
}

.feature-badge:hover {
    background: var(--color-accent-secondary);
    color: white;
    transform: scale(1.05);
}

.badge-icon {
    font-size: var(--font-size-lg);
}

.badge-text {
    font-weight: 600;
}

.ai-disclaimer {
    font-size: var(--font-size-sm);
    font-style: italic;
    color: var(--color-text-light);
    margin-top: var(--spacing-lg);
}

/* ============================================
   FAQ Section
   ============================================ */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--color-bg-secondary);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
    box-shadow: 0 2px 8px var(--color-shadow);
    transition: var(--transition);
}

.faq-item:hover {
    box-shadow: 0 4px 12px var(--color-shadow-hover);
}

.faq-question {
    padding: var(--spacing-md);
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text-primary);
    cursor: pointer;
    list-style: none;
    transition: var(--transition);
}

.faq-question::-webkit-details-marker {
    display: none;
}

.faq-question::before {
    content: "▶";
    display: inline-block;
    margin-right: var(--spacing-sm);
    transition: transform 0.3s ease;
}

.faq-item[open] .faq-question::before {
    transform: rotate(90deg);
}

.faq-question:hover {
    color: var(--color-accent-secondary);
}

.faq-question:focus {
    outline: 2px solid var(--color-accent-secondary);
    outline-offset: 2px;
}

.faq-answer {
    padding: 0 var(--spacing-md) var(--spacing-md) var(--spacing-md);
    color: var(--color-text-secondary);
}

.faq-answer p {
    line-height: 1.8;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background-color: var(--color-bg-dark);
    color: var(--color-text-light);
    padding: var(--spacing-xl) 0 var(--spacing-md) 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.footer-brand h3 {
    color: var(--color-accent-primary);
    margin-bottom: var(--spacing-xs);
}

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

.footer-link {
    color: var(--color-text-light);
    font-weight: 500;
}

.footer-link:hover {
    color: var(--color-accent-primary);
}

.footer-easter-egg {
    background: var(--color-bg-secondary);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
}

.easter-egg-text {
    margin: 0;
    font-size: var(--font-size-sm);
}

.easter-egg-link {
    color: var(--color-accent-secondary);
    font-weight: 600;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

.footer-bottom p {
    margin: 0;
    font-size: var(--font-size-sm);
}

/* ============================================
   Responsive Design
   ============================================ */

/* Tablets (768px and up) */
@media (min-width: 768px) {
    .hero-container {
        grid-template-columns: 1fr 1fr;
    }
    
    .hero-content {
        text-align: left;
    }
    
    .cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .recipe-card {
        grid-template-columns: 1fr 1fr;
    }
    
    .folklore-content {
        grid-template-columns: 1fr 1fr;
    }
    
    .ai-header {
        flex-direction: row;
    }
    
    .footer-content {
        grid-template-columns: repeat(3, 1fr);
        text-align: left;
    }
    
    .footer-links {
        justify-content: flex-start;
    }
}

/* Desktop (1024px and up) */
@media (min-width: 1024px) {
    .cards-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .container {
        padding: 0 var(--spacing-lg);
    }
}

/* Accessibility: Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --color-border: currentColor;
    }
    
    .card,
    .recipe-card,
    .faq-item {
        border: 2px solid currentColor;
    }
}

/* Print Styles */
@media print {
    .header,
    .dark-mode-toggle,
    .proportion-meter,
    .cta-button,
    .meter-refresh,
    .footer-links {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
}