/* ============================================
   Everlit Candle - Premium Dark Theme
   Mobile-first, AI-agentic friendly
   ============================================ */

/* CSS Variables */
:root {
    /* Colors */
    --bg-primary: #1A1A1A;
    --bg-secondary: #242424;
    --bg-tertiary: #2D2D2D;
    --text-primary: #FFFFFF;
    --text-secondary: #A3A3A3;
    --text-muted: #737373;
    --accent: #F59E0B;
    --accent-hover: #FBBF24;
    --accent-subtle: rgba(245, 158, 11, 0.1);
    --border: #404040;
    --border-subtle: #2D2D2D;
    
    /* Typography */
    --font-heading: 'EB Garamond', Georgia, serif;
    --font-body: 'Inter', system-ui, sans-serif;
    
    /* Spacing - Generous whitespace */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2.5rem;
    --space-xl: 4rem;
    --space-2xl: 6rem;
    --space-3xl: 8rem;
    
    /* Layout */
    --container-max: 1200px;
    --container-padding: 1.5rem;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(245, 158, 11, 0.15);
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-size: 18px;
    line-height: 1.7;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 500;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 7vw, 4rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.25rem); }
h3, h4, h5, h6 { font-size: 18px; }

p {
    margin-bottom: var(--space-sm);
    color: var(--text-secondary);
}

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

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

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

/* Container */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(26, 26, 26, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-subtle);
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--text-primary);
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 500;
}

.logo img {
    width: 40px;
    height: 40px;
    border-radius: 1000px;
}

.nav {
    display: none;
}

.nav a {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    font-weight: 400;
    padding: var(--space-xs) var(--space-sm);
    transition: color var(--transition-fast);
}

.nav a:hover {
    color: var(--text-primary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: 0.75rem 1.5rem;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 500;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

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

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-glow);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--bg-secondary);
    border-color: var(--text-secondary);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1rem;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: calc(72px + var(--space-xl)) 0 var(--space-3xl);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 150%;
    background: radial-gradient(ellipse, rgba(245, 158, 11, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.hero .container {
    display: grid;
    gap: var(--space-xl);
    align-items: center;
}

.hero-content {
    max-width: 600px;
}

.hero-title {
    font-size: clamp(2.5rem, 7vw, 4.5rem);
    font-weight: 500;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.hero-subtitle {
    font-family: var(--font-heading);
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-weight: 400;
    color: var(--accent);
    margin-bottom: var(--space-md);
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin: var(--space-lg) 0;
}

.hero-meta {
    font-size: 18px;
    color: var(--text-secondary);
    margin-top: var(--space-md);
    font-style: italic;
}

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

.hero-logo {
    width: 100%;
    max-width: 400px;
    height: auto;
    border-radius: 1000px;
    filter: drop-shadow(0 0 60px rgba(245, 158, 11, 0.2));
}

/* Sections General */
.section {
    padding: var(--space-3xl) 0;
    position: relative;
}

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

.section-eyebrow {
    display: block;
    text-align: center;
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: var(--space-sm);
}

/* Why It Matters */
.why {
    background: var(--bg-secondary);
}

.why-content {
    max-width: 680px;
    margin: 0 auto;
    text-align: center;
}

.why-lead {
    font-family: var(--font-heading);
    font-size: clamp(1.25rem, 3vw, 1.5rem);
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

.why-tagline {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    color: var(--accent);
    margin: var(--space-lg) 0;
}

.counter {
    margin-top: var(--space-xl);
    padding: var(--space-lg);
    background: var(--bg-tertiary);
    border-radius: 16px;
    border: 1px solid var(--border);
}

.counter-number {
    display: block;
    font-family: var(--font-heading);
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 500;
    color: var(--accent);
    line-height: 1;
}

.counter-label {
    display: block;
    margin-top: var(--space-xs);
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

/* Moment of Peace */
.peace {
    text-align: center;
}

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

.peace-lead {
    font-family: var(--font-heading);
    font-size: clamp(1.5rem, 4vw, 2rem);
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

.peace-sublead {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

.peace-note {
    margin-top: var(--space-lg);
    font-size: 0.9375rem;
    color: var(--text-muted);
    font-style: italic;
}

/* Candle Wall */
.wall {
    background: var(--bg-secondary);
}

.wall-content {
    max-width: 680px;
    margin: 0 auto;
    text-align: center;
    margin-bottom: var(--space-xl);
}

.wall-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-sm);
    margin-top: var(--space-lg);
}

.wall-preview {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
    max-width: 900px;
    margin: 0 auto;
}

.candle-card {
    background: var(--bg-tertiary);
    border-radius: 12px;
    padding: var(--space-md);
    text-align: center;
    border: 1px solid var(--border-subtle);
    transition: transform var(--transition-base);
}

.candle-card:hover {
    transform: translateY(-4px);
}

.candle-card img {
    width: 100%;
    max-width: 120px;
    height: auto;
    border-radius: 8px;
    margin-bottom: var(--space-sm);
}

.candle-card .date {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

/* How It Works */
.how-steps {
    display: grid;
    gap: var(--space-xl);
    max-width: 800px;
    margin: 0 auto var(--space-xl);
}

.step {
    text-align: center;
    padding: var(--space-lg);
    background: var(--bg-secondary);
    border-radius: 16px;
    border: 1px solid var(--border-subtle);
}

.step-number {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-subtle);
    color: var(--accent);
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 500;
    border-radius: 50%;
    margin: 0 auto var(--space-md);
}

.step-title {
    margin-bottom: var(--space-xs);
    color: var(--text-primary);
}

.step-description {
    color: var(--text-secondary);
    margin: 0;
}

.how-cta {
    text-align: center;
    margin-top: var(--space-xl);
}

/* Ownership */
.ownership {
    background: var(--bg-secondary);
}

.ownership-content {
    max-width: 680px;
    margin: 0 auto;
    text-align: center;
}

.ownership-content p {
    margin-bottom: var(--space-sm);
}

.ownership-content .btn {
    margin-top: var(--space-md);
}

/* FAQ */
.faq-list {
    max-width: 720px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    margin-bottom: var(--space-sm);
    overflow: hidden;
}

.faq-question {
    padding: var(--space-md) var(--space-lg);
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background var(--transition-fast);
}

.faq-question:hover {
    background: var(--bg-tertiary);
}

.faq-question::after {
    content: '\e139';
    font-family: 'Phosphor';
    font-size: 1.25rem;
    color: var(--text-muted);
    transition: transform var(--transition-base);
}

.faq-item[open] .faq-question::after {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 var(--space-lg) var(--space-md);
}

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

/* CTA */
.cta {
    text-align: center;
    background: linear-gradient(to bottom, var(--bg-primary), var(--bg-secondary));
}

.cta-subtitle {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 200;
    align-items: center;
    justify-content: center;
    padding: var(--space-md);
}

.modal.active {
    display: flex;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background: var(--bg-secondary);
    border-radius: 16px;
    padding: var(--space-xl);
    max-width: 480px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    z-index: 1;
}

.modal-close {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    padding: var(--space-xs);
    transition: color var(--transition-fast);
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-title {
    margin-bottom: var(--space-lg);
    text-align: center;
}

/* Form */
.checkout-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.form-group label {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea {
    padding: 0.75rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

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

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.char-count {
    text-align: right;
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.form-checkbox {
    flex-direction: row;
    align-items: flex-start;
    gap: var(--space-sm);
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    font-weight: 400;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    margin-top: 2px;
    width: 18px;
    height: 18px;
    accent-color: var(--accent);
}

.checkout-summary {
    padding: var(--space-md);
    background: var(--bg-tertiary);
    border-radius: 12px;
    text-align: center;
    margin: var(--space-sm) 0;
}

.price-amount {
    display: block;
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 500;
    color: var(--accent);
}

.price-note {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Fullscreen Modal */
.fullscreen-modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 300;
    background: var(--bg-primary);
    align-items: center;
    justify-content: center;
}

.fullscreen-modal.active {
    display: flex;
}

.fullscreen-close {
    position: absolute;
    top: var(--space-lg);
    right: var(--space-lg);
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 2rem;
    cursor: pointer;
    padding: var(--space-sm);
    transition: color var(--transition-fast);
    z-index: 1;
}

.fullscreen-close:hover {
    color: var(--text-primary);
}

.fullscreen-content {
    text-align: center;
    max-width: 800px;
    padding: var(--space-xl);
}

.fullscreen-candle {
    width: 60vw;
    max-width: 500px;
    height: auto;
    border-radius: 16px;
    box-shadow: var(--shadow-glow);
    margin-bottom: var(--space-xl);
}

.fullscreen-prayer {
    font-family: var(--font-heading);
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.fullscreen-date {
    font-size: 0.9375rem;
    color: var(--text-muted);
}

/* Footer */
.footer {
    padding: var(--space-xl) 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-subtle);
}

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

.footer-disclaimer {
    max-width: 680px;
    margin: 0 auto var(--space-lg);
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

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

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

.footer-copyright {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin: 0;
}

/* Fade-in Animation */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Tablet & Desktop */
@media (min-width: 768px) {
    :root {
        --container-padding: 2rem;
    }
    
    .nav {
        display: flex;
        align-items: center;
        gap: var(--space-xs);
    }
    
    .hero .container {
        grid-template-columns: 1fr 1fr;
    }
    
    .how-steps {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .wall-preview {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1024px) {
    :root {
        --container-padding: 3rem;
    }
    
    .how-steps {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .wall-preview {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .step {
        text-align: left;
    }
    
    .step-number {
        margin: 0 0 var(--space-md) 0;
    }
}

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