/* ============================================
   HOMEPAGE-SPECIFIC STYLES
   Keeps index.html layout isolated from globals
   ============================================ */

/* Utility brutalist styles */
.nb-card {
    border: 4px solid var(--color-black);
    border-radius: 16px;
    box-shadow: 10px 10px 0 rgba(0,0,0,1);
    background: var(--bg-primary);
}

.nb-shadow-sm {
    box-shadow: 6px 6px 0 rgba(0,0,0,1);
}

.nb-uppercase {
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

/* Hero */
.hero {
    background: var(--bg-primary);
    position: static;
    top: auto;
    border: 6px solid var(--color-black);
    box-shadow: 12px 12px 0 rgba(0,0,0,1);
    border-radius: 18px;
    padding: var(--space-5) var(--space-4);
    margin: var(--space-5) var(--space-4) 0;
}

.hero-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-5);
    align-items: center;
}

.hero-text {
    background: #FFFDF5;
    border: 4px solid var(--color-black);
    border-radius: 16px;
    padding: var(--space-4);
    box-shadow: 10px 10px 0 rgba(0,0,0,1);
}

.hero-text h1 {
    font-size: var(--text-4xl);
    margin-bottom: var(--space-2);
}

.eyebrow-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    background: var(--bg-success);
    border: 3px solid var(--color-black);
    border-radius: 999px;
    padding: 0.25rem 0.85rem;
    font-weight: var(--font-bold);
    margin-bottom: var(--space-2);
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin: var(--space-3) 0 var(--space-2);
}

.primary-cta,
.secondary-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    padding: 0.95rem 1.6rem;
    border: 4px solid var(--color-black);
    border-radius: 12px;
    text-decoration: none;
    font-weight: var(--font-black);
    box-shadow: 6px 6px 0 rgba(0,0,0,1);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    text-transform: uppercase;
}

.primary-cta {
    background: var(--color-warning);
    color: var(--text-primary);
}

.secondary-cta {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.primary-cta:hover,
.secondary-cta:hover {
    transform: translate(-2px, -2px);
    box-shadow: 8px 8px 0 rgba(0,0,0,1);
}

.hero-stats {
    list-style: none;
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
    margin-top: var(--space-2);
}

.hero-stats li {
    min-width: 110px;
    border: 3px solid var(--color-black);
    border-radius: 12px;
    padding: var(--space-2);
    background: var(--bg-secondary);
    box-shadow: 6px 6px 0 rgba(0,0,0,1);
}

.stat-value {
    display: block;
    font-size: var(--text-3xl);
    font-weight: var(--font-black);
}

.stat-label {
    color: var(--text-secondary);
    font-weight: var(--font-semibold);
}

.hero-visual-card {
    background: linear-gradient(135deg, var(--bg-info), var(--bg-accent));
    border: 4px solid var(--color-black);
    border-radius: 20px;
    padding: var(--space-4);
    box-shadow: 12px 12px 0 rgba(0,0,0,1);
    position: relative;
    overflow: hidden;
}

.hero-visual-card::after {
    content: "";
    position: absolute;
    inset: 1rem;
    border: 3px dashed rgba(0,0,0,0.4);
    border-radius: 16px;
    pointer-events: none;
}

.hero-visual-card ul {
    list-style: none;
    margin: var(--space-2) 0;
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

.visual-title {
    font-weight: var(--font-black);
    font-size: var(--text-xl);
}

.visual-footer {
    font-size: var(--text-sm);
    color: var(--text-muted);
}

/* Navigation hub */
.navigation-hub {
    margin: var(--space-5) 0;
    padding: 0 var(--space-4);
}

.navigation-grid {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
    margin-top: var(--space-4);
}

.nav-group {
    flex: 1 1 280px;
    background: var(--bg-primary);
    border: 4px solid var(--color-black);
    border-radius: 12px;
    padding: var(--space-3);
    box-shadow: 8px 8px 0 rgba(0,0,0,1);
}

.nav-group:nth-child(1) {
    background: #DBEAFE;
}

.nav-group:nth-child(2) {
    background: #FEF3C7;
}

.nav-group:nth-child(3) {
    background: #FDE2E4;
}

.nav-group-title {
    font-size: var(--text-xl);
    font-weight: var(--font-black);
    margin-bottom: var(--space-2);
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.nav-group-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.nav-group-links a {
    flex: 1 1 120px;
    text-decoration: none;
    padding: 0.65rem 0.85rem;
    border: 3px solid var(--color-black);
    border-radius: 10px;
    font-weight: var(--font-bold);
    color: var(--text-primary);
    box-shadow: 4px 4px 0 rgba(0,0,0,1);
    background: var(--bg-secondary);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    text-transform: uppercase;
    font-size: var(--text-sm);
}

.nav-group-links a:hover {
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0 rgba(0,0,0,1);
}

.nav-group-links a:active {
    transform: translate(1px, 1px);
    box-shadow: 2px 2px 0 rgba(0,0,0,1);
}

/* Intro hero */
.intro-section {
    background: var(--bg-accent);
    border: 4px solid var(--color-warning);
    border-radius: 12px;
    padding: var(--space-4);
    margin: var(--space-4) 0;
    box-shadow: 10px 10px 0 rgba(0,0,0,1);
}

.intro-section h2 {
    font-size: var(--text-3xl);
    font-weight: var(--font-black);
    color: var(--color-warning);
    margin-bottom: var(--space-2);
}

.quick-links {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
    margin-top: var(--space-3);
}

.quick-link-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.85rem 1.4rem;
    background: var(--color-primary);
    color: var(--text-inverse);
    border: 3px solid var(--color-black);
    border-radius: 10px;
    text-decoration: none;
    font-weight: var(--font-bold);
    box-shadow: 6px 6px 0 rgba(0,0,0,1);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.quick-link-btn:hover {
    transform: translate(-2px, -2px);
    box-shadow: 8px 8px 0 rgba(0,0,0,1);
}

/* Tense sections */
.category-section {
    margin: var(--space-6) 0;
}

.category-title {
    font-size: var(--text-3xl);
    font-weight: var(--font-black);
    color: var(--color-primary);
    border-bottom: 5px solid var(--color-primary);
    padding-bottom: var(--space-2);
    margin-bottom: var(--space-4);
    text-transform: uppercase;
}

.tenses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-4);
}

.tense-card-link {
    text-decoration: none;
    color: inherit;
}

.tense-card-preview {
    background: var(--bg-primary);
    border: 4px solid var(--color-black);
    border-radius: 14px;
    padding: var(--space-3);
    min-height: 100%;
    box-shadow: 10px 10px 0 rgba(0,0,0,1);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    transform-origin: center;
}

.tense-card-preview:hover {
    transform: translate(-4px, -4px) rotate(0deg);
    box-shadow: 14px 14px 0 rgba(0,0,0,1);
}

.tense-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 4px solid var(--color-black);
    background: var(--color-primary);
    color: var(--text-inverse);
    font-weight: var(--font-black);
    font-size: var(--text-xl);
    margin-bottom: var(--space-2);
}

.tense-formula {
    font-family: var(--font-mono);
    background: var(--bg-info);
    border: 3px solid var(--color-info);
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
    margin-bottom: var(--space-2);
}

.tense-example {
    background: var(--bg-secondary);
    border-left: 6px solid var(--color-primary);
    padding: 0.85rem;
    border-radius: 6px;
    font-style: italic;
}

.tenses-grid a:nth-child(4n+1) .tense-card-preview {
    background: #FFECC7;
}

.tenses-grid a:nth-child(4n+2) .tense-card-preview {
    background: #D1FAE5;
}

.tenses-grid a:nth-child(4n+3) .tense-card-preview {
    background: #E0E7FF;
}

.tenses-grid a:nth-child(4n) .tense-card-preview {
    background: #FCE7F3;
}

.tenses-grid a:nth-child(odd) .tense-card-preview {
    transform: rotate(-0.6deg);
}

.tenses-grid a:nth-child(even) .tense-card-preview {
    transform: rotate(0.6deg);
}

/* Footer */
footer {
    background: #FFF0D2;
    color: var(--text-primary);
    border-top: 6px solid var(--color-black);
    margin-top: var(--space-6);
    box-shadow: 0 -8px 0 rgba(0,0,0,1);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-4);
    padding: var(--space-5);
}

.footer-section h3,
.footer-section h4 {
    font-weight: var(--font-black);
    margin-bottom: var(--space-2);
    color: var(--text-primary);
}

.footer-section ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.footer-section {
    border: 4px solid var(--color-black);
    border-radius: 14px;
    padding: var(--space-3);
    box-shadow: 6px 6px 0 rgba(0,0,0,1);
    background: var(--bg-primary);
    color: var(--text-primary);
}

.footer-section:nth-child(1) {
    background: #FFEAC2;
}

.footer-section:nth-child(2) {
    background: #E0E7FF;
}

.footer-section:nth-child(3) {
    background: #D1FAE5;
}

.footer-section:nth-child(4) {
    background: #FDE2E4;
}

.footer-section a {
    text-decoration: underline;
    color: var(--text-primary);
    font-weight: var(--font-bold);
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.6rem;
    border: 3px solid var(--color-black);
    border-radius: 999px;
    background: var(--bg-success);
    font-weight: var(--font-bold);
}

.footer-bottom {
    border-top: 4px solid var(--color-black);
    padding: var(--space-3);
    text-align: center;
    background: #FFDDB5;
}

.footer-meta {
    margin-top: 0.5rem;
    font-size: var(--text-sm);
}

.footer-meta a {
    color: var(--text-primary);
    text-decoration: underline;
    font-weight: var(--font-black);
}

.footer-meta .coming-soon {
    color: var(--text-primary);
    font-style: italic;
}

.footer-meta span {
    color: var(--text-primary);
}

/* Responsive tweaks */
@media (max-width: 640px) {
    .hero-stats {
        flex-wrap: nowrap;
        overflow-x: auto;
        gap: var(--space-2);
        padding-bottom: 0.5rem;
    }

    .hero-stats li {
        flex: 0 0 140px;
    }

    .hero-cta {
        flex-direction: column;
    }

    .navigation-hub {
        padding: 0 var(--space-2);
    }

    .navigation-grid {
        flex-direction: column;
    }

    .nav-group {
        box-shadow: 6px 6px 0 rgba(0,0,0,1);
    }

    .quick-links {
        flex-direction: column;
    }

    .quick-link-btn {
        width: 100%;
        justify-content: center;
    }
}