/* ============================================================
   Yeah Nah Wine — style.css
   Design: DESIGN-001 v2.1
   ============================================================ */

/* ---- 1. Reset & Base ---- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    background-color: var(--color-cream);
    color: var(--color-charcoal);
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

a {
    color: var(--color-wine-purple);
    text-decoration: underline;
}

a:hover {
    text-decoration: none;
}

ul, ol {
    list-style: none;
}

/* ---- 2. Custom Properties ---- */
:root {
    --color-wine-purple: #4A154B;
    --color-yeah-nah-red: #DC3545;
    --color-nah-yeah-green: #28A745;
    --color-cream: #F8F5F0;
    --color-charcoal: #2D2D2D;
    --color-white: #FFFFFF;
    --color-wine-purple-light: rgba(74, 21, 75, 0.08);

    --font-heading: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    --space-1: 8px;
    --space-2: 16px;
    --space-3: 24px;
    --space-4: 32px;
    --space-5: 48px;
    --space-6: 64px;
    --space-7: 96px;

    --transition-fast: 150ms ease-out;
    --transition-medium: 300ms ease-in-out;

    --border-radius: 8px;
    --container-max: 1200px;
}

/* ---- 3. Typography ---- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--color-wine-purple);
    line-height: 1.2;
    letter-spacing: -0.01em;
}

h1 {
    font-size: clamp(2.25rem, 5vw, 3rem);
    font-weight: 900;
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(1.75rem, 3.5vw, 2.25rem);
    font-weight: 700;
}

h3 {
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
    font-weight: 700;
    letter-spacing: 0;
}

h4 {
    font-size: 1.25rem;
    font-weight: 700;
}

p {
    margin-bottom: var(--space-3);
}

p:last-child {
    margin-bottom: 0;
}

strong {
    font-weight: 600;
}

/* ---- 4. Layout ---- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-3);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--space-5);
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 var(--space-6);
    }
}

.section {
    padding: var(--space-6) 0;
}

@media (min-width: 768px) {
    .section {
        padding: var(--space-7) 0;
    }
}

/* ---- 5. Skip Link ---- */
.skip-link {
    position: absolute;
    top: -100%;
    left: var(--space-2);
    background: var(--color-wine-purple);
    color: var(--color-cream);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--border-radius);
    font-weight: 600;
    z-index: 9999;
    text-decoration: none;
}

.skip-link:focus {
    top: var(--space-2);
}

/* ---- 6. Header & Navigation ---- */
.site-header {
    background: var(--color-wine-purple);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 12px rgba(0,0,0,0.15);
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

/* Logo */
.logo {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.25rem;
    text-decoration: none;
    letter-spacing: -0.01em;
    white-space: nowrap;
}

.logo-yeah {
    color: var(--color-nah-yeah-green);
}

.logo-nah {
    color: var(--color-yeah-nah-red);
}

.logo-wine {
    color: var(--color-cream);
}

/* Desktop Nav */
.main-nav {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.nav-list {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.nav-link {
    color: rgba(248, 245, 240, 0.85);
    text-decoration: none;
    font-size: 0.9375rem;
    font-weight: 500;
    transition: color var(--transition-fast);
    padding: var(--space-1) 0;
    border-bottom: 2px solid transparent;
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-cream);
    border-bottom-color: var(--color-nah-yeah-green);
    text-decoration: none;
}

/* Mobile menu toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-1);
    width: 40px;
    height: 40px;
}

.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-cream);
    border-radius: 2px;
    transition: all var(--transition-medium);
}

/* Mobile nav overlay */
.mobile-nav {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-wine-purple);
    z-index: 99;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-5);
}

.mobile-nav.is-open {
    display: flex;
}

.mobile-nav .nav-link {
    font-size: 1.5rem;
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--color-cream);
    border-bottom: none;
}

.mobile-nav .nav-link:hover {
    color: var(--color-nah-yeah-green);
    border-bottom: none;
}

@media (max-width: 767px) {
    .nav-list {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }
}

/* ---- 7. Hero Section ---- */
.hero {
    background: var(--color-wine-purple);
    color: var(--color-cream);
    text-align: center;
    padding: var(--space-7) 0;
}

@media (min-width: 768px) {
    .hero {
        padding: calc(var(--space-7) * 1.5) 0;
    }
}

.hero h1 {
    color: var(--color-cream);
    margin-bottom: var(--space-3);
    max-width: 760px;
    margin-left: auto;
    margin-right: auto;
}

.hero h2 {
    color: rgba(248, 245, 240, 0.9);
    font-size: clamp(1.375rem, 3vw, 1.75rem);
    font-weight: 700;
    margin-bottom: var(--space-4);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero p {
    font-size: 1.125rem;
    color: rgba(248, 245, 240, 0.8);
    max-width: 560px;
    margin: 0 auto var(--space-5);
    line-height: 1.7;
}

/* Verdict display in hero */
.verdict-pair {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    margin: var(--space-4) 0;
    flex-wrap: wrap;
}

.verdict-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-2) var(--space-4);
    border-radius: 100px;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.125rem;
}

.verdict-badge--good {
    background: rgba(40, 167, 69, 0.2);
    color: #6fcf97;
    border: 1px solid rgba(40, 167, 69, 0.4);
}

.verdict-badge--bad {
    background: rgba(220, 53, 69, 0.2);
    color: #f28b97;
    border: 1px solid rgba(220, 53, 69, 0.4);
}

/* ---- 8. Buttons ---- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-1);
    padding: 14px 32px;
    border-radius: var(--border-radius);
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 1rem;
    letter-spacing: 0.02em;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: transform var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-fast);
    white-space: nowrap;
}

.btn:hover {
    transform: translateY(-2px);
    text-decoration: none;
}

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

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

.btn-primary:hover {
    background: #C82333;
    box-shadow: 0 4px 16px rgba(220, 53, 69, 0.35);
    color: var(--color-white);
}

.btn-secondary {
    background: transparent;
    color: var(--color-cream);
    border: 2px solid rgba(248, 245, 240, 0.5);
}

.btn-secondary:hover {
    border-color: var(--color-cream);
    background: rgba(248, 245, 240, 0.1);
    color: var(--color-cream);
}

.btn-outline {
    background: transparent;
    color: var(--color-wine-purple);
    border: 2px solid var(--color-wine-purple);
}

.btn-outline:hover {
    background: var(--color-wine-purple);
    color: var(--color-cream);
}

.btn-lg {
    padding: 18px 40px;
    font-size: 1.0625rem;
}

.btn-coming-soon {
    background: rgba(248, 245, 240, 0.15);
    color: rgba(248, 245, 240, 0.7);
    border: 2px solid rgba(248, 245, 240, 0.25);
    cursor: default;
}

.btn-coming-soon:hover {
    transform: none;
    background: rgba(248, 245, 240, 0.15);
    box-shadow: none;
}

/* ---- 9. How It Works Section ---- */
.how-it-works {
    background: var(--color-cream);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-6);
}

.section-header h2 {
    margin-bottom: var(--space-2);
}

.section-header p {
    color: #555;
    font-size: 1.0625rem;
    max-width: 520px;
    margin: 0 auto;
}

.steps-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
}

@media (min-width: 640px) {
    .steps-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.step-card {
    text-align: center;
    padding: var(--space-5) var(--space-3);
    background: var(--color-white);
    border-radius: 12px;
    border: 1px solid rgba(74, 21, 75, 0.08);
    position: relative;
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--color-wine-purple);
    color: var(--color-cream);
    border-radius: 50%;
    font-size: 0.8125rem;
    font-weight: 700;
    font-family: var(--font-body);
    margin-bottom: var(--space-3);
}

.step-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-2);
    line-height: 1;
}

.step-card h3 {
    margin-bottom: var(--space-2);
}

.step-card p {
    color: #555;
    font-size: 0.9375rem;
}

/* ---- 10. Features Section ---- */
.features {
    background: var(--color-wine-purple-light);
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-3);
}

@media (min-width: 640px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.feature-card {
    background: var(--color-white);
    border-radius: 12px;
    padding: var(--space-4);
    border: 1px solid rgba(74, 21, 75, 0.1);
    transition: box-shadow var(--transition-fast);
}

.feature-card:hover {
    box-shadow: 0 4px 20px rgba(74, 21, 75, 0.1);
}

.feature-icon {
    font-size: 1.75rem;
    margin-bottom: var(--space-2);
    line-height: 1;
}

.feature-card h3 {
    font-size: 1.125rem;
    margin-bottom: var(--space-1);
}

.feature-card p {
    color: #555;
    font-size: 0.9375rem;
    line-height: 1.5;
}

.feature-card--coming {
    opacity: 0.75;
    border-style: dashed;
}

.coming-tag {
    display: inline-block;
    background: rgba(74, 21, 75, 0.08);
    color: var(--color-wine-purple);
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 3px 8px;
    border-radius: 4px;
    margin-bottom: var(--space-2);
}

/* ---- 11. CTA Banner ---- */
.cta-banner {
    background: var(--color-wine-purple);
    color: var(--color-cream);
    text-align: center;
    padding: var(--space-6) 0;
}

.cta-banner h2 {
    color: var(--color-cream);
    margin-bottom: var(--space-2);
}

.cta-banner p {
    color: rgba(248, 245, 240, 0.8);
    font-size: 1.0625rem;
    margin-bottom: var(--space-4);
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
}

/* ---- 12. Prose Content (Privacy, Terms, About) ---- */
.prose-hero {
    background: var(--color-wine-purple);
    color: var(--color-cream);
    padding: var(--space-6) 0 var(--space-5);
}

.prose-hero h1 {
    color: var(--color-cream);
    margin-bottom: var(--space-2);
}

.prose-hero .last-updated {
    color: rgba(248, 245, 240, 0.7);
    font-size: 0.9375rem;
}

.prose-content {
    max-width: 760px;
    margin: 0 auto;
    padding: var(--space-6) var(--space-3);
}

@media (min-width: 768px) {
    .prose-content {
        padding: var(--space-7) var(--space-5);
    }
}

.prose-content h2 {
    font-size: 1.375rem;
    margin-top: var(--space-6);
    margin-bottom: var(--space-3);
    padding-bottom: var(--space-2);
    border-bottom: 2px solid var(--color-wine-purple-light);
}

.prose-content h2:first-child {
    margin-top: 0;
}

.prose-content h3 {
    font-size: 1.125rem;
    margin-top: var(--space-4);
    margin-bottom: var(--space-2);
}

.prose-content p {
    color: var(--color-charcoal);
    line-height: 1.7;
    margin-bottom: var(--space-3);
}

.prose-content ul,
.prose-content ol {
    margin-bottom: var(--space-3);
    padding-left: var(--space-4);
}

.prose-content ul li {
    list-style: disc;
    margin-bottom: var(--space-1);
    line-height: 1.6;
}

.prose-content ol li {
    list-style: decimal;
    margin-bottom: var(--space-1);
    line-height: 1.6;
}

.prose-content .disclaimer {
    text-transform: uppercase;
    font-size: 0.875rem;
    line-height: 1.6;
    background: rgba(220, 53, 69, 0.06);
    border-left: 4px solid var(--color-yeah-nah-red);
    padding: var(--space-3);
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
    margin: var(--space-4) 0;
}

.prose-content .contact-email {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    background: var(--color-wine-purple-light);
    color: var(--color-wine-purple);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--border-radius);
    font-weight: 600;
    text-decoration: none;
    transition: background var(--transition-fast);
}

.prose-content .contact-email:hover {
    background: rgba(74, 21, 75, 0.15);
}

/* ---- 13. About Page ---- */
.about-philosophy {
    background: var(--color-white);
}

.philosophy-list {
    margin: var(--space-3) 0;
}

.philosophy-list li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
    padding: var(--space-2) 0;
    border-bottom: 1px solid rgba(74, 21, 75, 0.06);
    font-size: 1.0625rem;
    color: var(--color-charcoal);
}

.philosophy-list li:last-child {
    border-bottom: none;
}

.philosophy-list li::before {
    content: "✗";
    color: var(--color-yeah-nah-red);
    font-weight: 700;
    font-size: 1rem;
    margin-top: 2px;
    flex-shrink: 0;
}

/* ---- 14. Contact Page ---- */
.contact-hero {
    background: var(--color-wine-purple);
    color: var(--color-cream);
    text-align: center;
    padding: var(--space-6) 0;
}

.contact-hero h1 {
    color: var(--color-cream);
    margin-bottom: var(--space-2);
}

.contact-hero p {
    color: rgba(248, 245, 240, 0.8);
    max-width: 480px;
    margin: 0 auto;
}

.contact-content {
    padding: var(--space-7) 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
    max-width: 800px;
    margin: 0 auto;
}

@media (min-width: 640px) {
    .contact-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.contact-card {
    background: var(--color-white);
    border-radius: 12px;
    padding: var(--space-5);
    border: 1px solid rgba(74, 21, 75, 0.1);
}

.contact-card h3 {
    margin-bottom: var(--space-2);
}

.contact-card p {
    color: #555;
    font-size: 0.9375rem;
    margin-bottom: var(--space-3);
}

.contact-card a {
    font-weight: 600;
    color: var(--color-wine-purple);
}

.response-note {
    text-align: center;
    margin-top: var(--space-6);
    padding: var(--space-4);
    background: var(--color-wine-purple-light);
    border-radius: 12px;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
}

.response-note p {
    color: var(--color-wine-purple);
    font-weight: 500;
    margin: 0;
}

/* ---- 15. Footer ---- */
.site-footer {
    background: var(--color-wine-purple);
    color: var(--color-cream);
    padding: var(--space-5) 0 var(--space-4);
}

.footer-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
    text-align: center;
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    text-decoration: none;
}

.footer-nav {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: var(--space-2) var(--space-4);
}

.footer-nav a {
    color: rgba(248, 245, 240, 0.75);
    text-decoration: none;
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
}

.footer-nav a:hover {
    color: var(--color-cream);
}

.footer-divider {
    color: rgba(248, 245, 240, 0.25);
}

.footer-meta {
    font-size: 0.875rem;
    color: rgba(248, 245, 240, 0.5);
    text-align: center;
}

.footer-meta a {
    color: rgba(248, 245, 240, 0.6);
}

.footer-meta a:hover {
    color: var(--color-cream);
}

/* ---- 16. Page-level prose hero (for inner pages) ---- */
.page-hero {
    background: var(--color-wine-purple);
    padding: var(--space-6) 0 var(--space-5);
}

.page-hero h1 {
    color: var(--color-cream);
    margin-bottom: var(--space-2);
}

.page-hero .meta {
    color: rgba(248, 245, 240, 0.65);
    font-size: 0.9375rem;
}

/* ---- 17. Utilities ---- */
.text-center { text-align: center; }
.text-purple { color: var(--color-wine-purple); }
.text-green { color: var(--color-nah-yeah-green); }
.text-red { color: var(--color-yeah-nah-red); }
.mt-0 { margin-top: 0 !important; }

/* ---- 18. Focus Styles (Accessibility) ---- */
:focus-visible {
    outline: 3px solid var(--color-nah-yeah-green);
    outline-offset: 3px;
    border-radius: 2px;
}

.site-header *:focus-visible {
    outline-color: var(--color-cream);
}

/* ---- 19. Swipe Direction Explainer ---- */
.swipe-explainer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-5);
    margin: var(--space-4) 0;
    flex-wrap: wrap;
}

.swipe-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.9375rem;
}

.swipe-item--good { color: rgba(248, 245, 240, 0.9); }
.swipe-item--bad  { color: rgba(248, 245, 240, 0.75); }

.swipe-arrow {
    font-size: 1.25rem;
}

/* ---- 20. Download Badges ---- */
.download-badges {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    margin-top: var(--space-4);
    flex-wrap: wrap;
}

.badge-link {
    display: flex;
    line-height: 0;
    transition: opacity 0.15s, transform 0.15s;
}

.badge-link:hover {
    opacity: 0.85;
    transform: translateY(-2px);
}

.store-badge {
    height: 44px;
    width: auto;
    display: block;
}

.android-coming-soon {
    font-size: 0.875rem;
    font-weight: 500;
    color: rgba(248, 245, 240, 0.55);
    letter-spacing: 0.02em;
}