/* DIY ECOM ACADEMY STYLESHEET — PREMIUM E-COMMERCE EDUCATION THEME */

:root {
    /* Curated Luxury Warm Palette (Matching style.css & workshop.css) */
    --bg-primary: hsl(40, 15%, 97%);     /* Warm Soft Ivory */
    --bg-secondary: hsl(40, 10%, 93%);   /* Soft Cream Gray */
    --bg-card: hsl(0, 0%, 100%);         /* Pure Crisp White */
    
    --brand-green: hsl(168, 45%, 11%);   /* Deep Dark Forest Green */
    --brand-green-hover: hsl(168, 45%, 16%);
    --brand-green-light: hsl(168, 20%, 95%);
    
    --accent-gold: hsl(38, 45%, 54%);    /* Muted Warm Gold */
    --accent-gold-dark: hsl(38, 50%, 42%);
    --accent-coral: hsl(16, 78%, 57%);    /* Accent pop for CTA and highlights */
    
    --border-light: hsl(40, 8%, 88%);
    --border-dark: hsl(168, 45%, 11%);
    
    --text-dark: hsl(168, 45%, 11%);
    --text-body: hsl(168, 20%, 25%);
    --text-muted: hsl(168, 10%, 45%);
    --text-white: hsl(0, 0%, 100%);
    
    --success: hsl(145, 65%, 40%);
    --danger: hsl(355, 75%, 50%);
    
    --font-serif: "Bodoni Moda", "Noto Serif Thai", serif;
    --font-sans: "Noto Sans Thai", "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: "Geist Mono", monospace;
    
    --transition-fast: all 0.15s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-smooth: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-slow: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    
    --header-height: 72px;
    --max-width: 1200px;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
}

/* 1. RESET & BASE SETUP */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    background-color: var(--bg-primary);
    /* SVG subtle paper grain texture */
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='paper-grain'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='matrix' values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.016 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23paper-grain)'/%3E%3C/svg%3E");
    color: var(--text-body);
    font-family: var(--font-sans);
    font-weight: 400;
    line-height: 1.75;
    overflow-x: hidden;
}

/* Custom Luxury Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: var(--border-light);
    border-radius: var(--radius-sm);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--brand-green);
}

/* Typography styles */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    color: var(--text-dark);
    font-weight: 600;
    line-height: 1.25;
    text-wrap: balance;
}

p, li {
    text-wrap: pretty;
}

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

.text-gold {
    color: var(--accent-gold-dark);
}

.text-coral {
    color: var(--accent-coral);
}

.font-serif {
    font-family: var(--font-serif);
    font-weight: 500;
    font-style: italic;
}

/* 2. REUSABLE UTILITIES */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 100px 0;
    position: relative;
    border-bottom: 1px solid var(--border-light);
}

.section-header {
    max-width: 720px;
    margin: 0 auto 60px auto;
    text-align: center;
}

.section-header h2 {
    font-size: 2.4rem;
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

.section-header p {
    font-size: 1.05rem;
    color: var(--text-muted);
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-sans);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.22em;
    color: var(--accent-gold-dark);
    text-transform: uppercase;
    margin-bottom: 12px;
}

/* 3. PREMIUM ORNAMENTS & BUTTONS */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: var(--transition-smooth);
}

.btn-primary {
    background-color: var(--brand-green);
    color: var(--text-white);
    border: 1px solid var(--brand-green);
}

.btn-primary:hover {
    background-color: var(--brand-green-hover);
    border-color: var(--brand-green-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(15, 32, 28, 0.15);
}

.btn-secondary {
    background: transparent;
    color: var(--text-dark);
    border: 1.5px solid var(--brand-green);
}

.btn-secondary:hover {
    background-color: var(--brand-green-light);
    transform: translateY(-2px);
}

.btn-coral {
    background-color: var(--accent-coral);
    color: var(--text-white);
    border: 1px solid var(--accent-coral);
}

.btn-coral:hover {
    background-color: hsl(16, 78%, 50%);
    border-color: hsl(16, 78%, 50%);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(226, 92, 56, 0.2);
}

.btn-block {
    display: flex;
    width: 100%;
}

.btn:active {
    transform: translateY(0) scale(0.98);
}

/* Gilded Frame - Hallmark visual frame on cards */
.gilded-frame {
    position: relative;
    background-color: var(--bg-card);
    border: 1px solid var(--border-light);
    transition: var(--transition-smooth);
}

.gilded-frame::before {
    content: '';
    position: absolute;
    top: 6px;
    left: 6px;
    right: 6px;
    bottom: 6px;
    border: 1px solid rgba(197, 160, 89, 0.22);
    pointer-events: none;
    transition: var(--transition-smooth);
    z-index: 1;
}

.gilded-frame:hover {
    border-color: var(--brand-green);
    box-shadow: 0 16px 36px rgba(15, 32, 28, 0.05);
}

.gilded-frame:hover::before {
    border-color: var(--accent-gold);
}

/* Hallmark Section Divider */
.hallmark-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 40px auto;
    max-width: 320px;
    gap: 16px;
    opacity: 0.85;
}

.hallmark-divider-line {
    flex: 1;
    height: 1px;
    background: linear-gradient(to var(--dir, right), var(--accent-gold) 0%, transparent 100%);
}

.hallmark-divider-line:first-child {
    --dir: left;
}

.hallmark-divider-diamond {
    color: var(--accent-gold-dark);
    font-size: 11px;
    user-select: none;
}

/* 4. NAVBAR */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background-color: rgba(250, 249, 245, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-light);
    z-index: 100;
    transition: var(--transition-smooth);
}

.navbar.shrunk {
    height: 60px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
}

.nav-container {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    font-family: var(--font-sans);
    font-weight: 800;
    font-size: 1.1rem;
    letter-spacing: 0.1em;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-logo-box {
    width: 28px;
    height: 28px;
    background-color: var(--brand-green);
    color: var(--text-white);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-serif);
    font-size: 0.9rem;
    font-weight: 800;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-link {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-body);
}

.nav-link:hover {
    color: var(--accent-gold-dark);
}

.nav-cta {
    background-color: var(--brand-green);
    color: var(--text-white);
    padding: 8px 18px;
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    font-weight: 700;
}

.nav-cta:hover {
    background-color: var(--brand-green-hover);
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-dark);
    cursor: pointer;
}

.mobile-nav {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 16px;
    right: 16px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 24px;
    flex-direction: column;
    gap: 16px;
    z-index: 99;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
    opacity: 0;
    transform: translateY(-10px);
    transition: var(--transition-smooth);
    pointer-events: none;
}

.mobile-nav.open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.mobile-link {
    font-size: 0.95rem;
    font-weight: 600;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(15, 32, 28, 0.05);
}

/* 5. HERO SECTION */
.hero {
    padding-top: calc(var(--header-height) + 60px);
    padding-bottom: 90px;
    min-height: 90vh;
    display: flex;
    align-items: center;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--accent-coral);
    border: 1px solid rgba(226, 92, 56, 0.2);
    background-color: rgba(226, 92, 56, 0.05);
    padding: 4px 12px;
    border-radius: 99px;
    margin-bottom: 24px;
}

.hero h1 {
    font-size: 3.2rem;
    line-height: 1.15;
    margin-bottom: 20px;
}

.hero-subhead {
    font-size: 1.05rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 36px;
    max-width: 50ch;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-visual {
    position: relative;
    padding: 10px;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    background-color: var(--bg-card);
}

.hero-visual::before {
    content: '';
    position: absolute;
    top: 6px;
    left: 6px;
    right: 6px;
    bottom: 6px;
    border: 1px solid rgba(197, 160, 89, 0.2);
    pointer-events: none;
    border-radius: calc(var(--radius-md) - 4px);
}

.hero-image {
    width: 100%;
    border-radius: calc(var(--radius-md) - 6px);
    aspect-ratio: 4/3;
    object-fit: cover;
}

/* 6. PAIN POINTS SECTION */
.pain-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.pain-card {
    padding: 48px 36px;
    border-radius: var(--radius-md);
}

.pain-icon-wrapper {
    width: 48px;
    height: 48px;
    background-color: var(--brand-green-light);
    color: var(--brand-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.pain-card h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
}

.pain-card p {
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* 7. BENTO SYSTEM FRAMEWORK */
.bento-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    grid-template-rows: auto auto;
    gap: 24px;
}

.bento-card {
    border-radius: var(--radius-md);
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.bento-card-wide {
    grid-column: 1 / 2;
}

.bento-card-side {
    grid-column: 2 / 3;
    grid-row: 1 / 3;
    background-color: var(--brand-green) !important;
    color: var(--text-white);
}

.bento-card-side::before {
    border-color: rgba(197, 160, 89, 0.4);
}

.bento-card-side h3, .bento-card-side h2 {
    color: var(--text-white);
}

.bento-card-side p {
    color: var(--brand-green-light);
}

.bento-card-bottom {
    grid-column: 1 / 2;
}

.bento-step-num {
    font-family: var(--font-serif);
    font-size: 2rem;
    color: var(--accent-gold);
    margin-bottom: 16px;
}

.bento-card-side .bento-step-num {
    color: var(--accent-gold);
}

.bento-card h3 {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.bento-card p {
    font-size: 0.95rem;
    color: var(--text-body);
}

.bento-card-side p {
    color: rgba(255, 255, 255, 0.8);
}

.bento-list {
    list-style: none;
    margin-top: 24px;
    display: grid;
    gap: 12px;
}

.bento-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
}

.bento-list i {
    color: var(--accent-gold-dark);
}

.bento-card-side .bento-list i {
    color: var(--accent-gold);
}

/* 8. COURSES SECTION */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.course-card {
    border-radius: var(--radius-md);
    padding: 12px;
    background-color: var(--bg-card);
}

.course-inner {
    padding: 36px 24px;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.course-tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--accent-gold-dark);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 16px;
}

.course-card h3 {
    font-size: 1.4rem;
    margin-bottom: 12px;
}

.course-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 24px;
}

.course-features {
    list-style: none;
    display: grid;
    gap: 10px;
    margin-bottom: 30px;
}

.course-features li {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 0.88rem;
    color: var(--text-body);
}

.course-features i {
    color: var(--brand-green);
    margin-top: 4px;
    font-size: 0.85rem;
}

.course-price-box {
    border-top: 1px solid var(--border-light);
    padding-top: 20px;
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 20px;
}

.course-price-label {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.course-price {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--brand-green);
}

/* 9. TESTIMONIALS & EDITORIAL QUOTES */
.testimonials-section {
    background-color: var(--brand-green-light);
}

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

.quote-icon {
    font-size: 3rem;
    color: var(--accent-gold);
    margin-bottom: 24px;
    opacity: 0.5;
}

.quote-text {
    font-family: var(--font-serif);
    font-size: 1.6rem;
    color: var(--text-dark);
    line-height: 1.5;
    margin-bottom: 28px;
}

.quote-author {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.author-name {
    font-family: var(--font-sans);
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-dark);
}

.author-role {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* 10. LEAD MAGNET OPT-IN */
.optin-box {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 50px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-light);
    padding: 60px;
    border-radius: var(--radius-md);
    position: relative;
}

.optin-box::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 8px;
    right: 8px;
    bottom: 8px;
    border: 1px solid rgba(197, 160, 89, 0.25);
    border-radius: calc(var(--radius-md) - 6px);
    pointer-events: none;
}

.optin-text {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.optin-text h2 {
    font-size: 2.2rem;
    margin-bottom: 16px;
}

.optin-text p {
    color: var(--text-muted);
    margin-bottom: 24px;
    font-size: 0.95rem;
}

.optin-list {
    list-style: none;
    display: grid;
    gap: 12px;
}

.optin-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
}

.optin-list i {
    color: var(--accent-coral);
}

.optin-form {
    display: grid;
    gap: 18px;
}

.form-group {
    display: grid;
    gap: 8px;
}

.form-group label {
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--text-dark);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-light);
    background-color: var(--bg-primary);
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    color: var(--text-dark);
    transition: var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--brand-green);
    background-color: var(--bg-card);
    box-shadow: 0 0 0 3px rgba(15, 32, 28, 0.05);
}

/* 11. FAQ DYNAMIC ACCORDION */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: grid;
    gap: 16px;
}

.faq-item {
    background-color: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: var(--transition-smooth);
}

.faq-item:hover {
    border-color: var(--brand-green);
}

.faq-question {
    width: 100%;
    padding: 24px 32px;
    background: none;
    border: none;
    text-align: left;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-family: var(--font-sans);
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--text-dark);
    cursor: pointer;
    gap: 16px;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s cubic-bezier(0.16, 1, 0.3, 1), padding 0.35s ease;
    padding: 0 32px;
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.7;
}

.faq-answer p {
    padding-bottom: 24px;
}

.faq-item.open .faq-answer {
    max-height: 200px; /* Adjust according to content size */
}

.faq-icon {
    font-size: 1.2rem;
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    color: var(--accent-gold-dark);
}

.faq-item.open .faq-icon {
    transform: rotate(180deg);
}

/* 12. ACCESSIBLE DIALOG MODAL */
.dialog-modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.95);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    background-color: var(--bg-card);
    padding: 40px;
    max-width: 480px;
    width: calc(100% - 32px);
    box-shadow: 0 24px 48px rgba(15, 32, 28, 0.15);
    z-index: 1000;
    display: none;
    opacity: 0;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease;
}

.dialog-modal::backdrop {
    background-color: rgba(15, 32, 28, 0.6);
    backdrop-filter: blur(8px);
}

.dialog-modal.open {
    display: block;
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.dialog-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.dialog-header h3 {
    font-size: 1.4rem;
}

.dialog-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    transition: var(--transition-fast);
}

.dialog-close:hover {
    background-color: var(--bg-secondary);
    color: var(--text-dark);
}

/* 13. FOOTER */
.footer {
    background-color: var(--brand-green);
    color: var(--text-white);
    padding: 80px 0 40px 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 60px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.footer-brand .nav-logo-box {
    background-color: var(--text-white);
    color: var(--brand-green);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    max-width: 30ch;
}

.footer-links-col {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.footer-links-col h4 {
    color: var(--text-white);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.footer-links-col ul {
    list-style: none;
    display: grid;
    gap: 12px;
}

.footer-links-col a {
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.7);
}

.footer-links-col a:hover {
    color: var(--accent-gold);
    padding-left: 4px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.5);
}

.footer-bottom-links {
    display: flex;
    gap: 20px;
}

/* 14. RESPONSIVE BREAKPOINTS */
@media (max-width: 1024px) {
    .hero h1 {
        font-size: 2.8rem;
    }
    
    .pain-grid {
        gap: 20px;
    }
    
    .courses-grid {
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 70px 0;
    }
    
    .section-header {
        margin-bottom: 40px;
    }
    
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    .navbar {
        height: 64px;
    }
    
    .nav-menu {
        display: none;
    }
    
    .mobile-toggle {
        display: block;
    }
    
    .hero {
        padding-top: calc(var(--header-height) + 30px);
        padding-bottom: 60px;
        text-align: center;
    }
    
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .hero-content {
        align-items: center;
    }
    
    .hero-subhead {
        margin-bottom: 24px;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .pain-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .bento-grid {
        grid-template-columns: 1fr;
    }
    
    .bento-card-wide, .bento-card-side, .bento-card-bottom {
        grid-column: auto;
        grid-row: auto;
    }
    
    .courses-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .optin-box {
        grid-template-columns: 1fr;
        padding: 32px 24px;
        gap: 32px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
        margin-bottom: 40px;
    }
    
    .footer-bottom {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
}

/* 15. ACCESSIBILITY — REDUCED MOTION */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-delay: 0s !important;
        animation-duration: 0s !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0s !important;
        scroll-behavior: auto !important;
    }
    
    .btn:hover, .btn:active, .gilded-frame:hover {
        transform: none !important;
    }
}