/* ═══════════════════════════════════════════════════════
   WordDuel — Premium Layout System
   Astros-inspired layout patterns (theme-agnostic)
   ═══════════════════════════════════════════════════════ */

/* ── Premium Hero ─────────────────────────────────── */
.premium-hero {
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--space-2xl) 0 var(--space-lg);
    position: relative;
    overflow: hidden;
}

.premium-hero::before,
.premium-hero::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
    filter: blur(80px);
    opacity: 0.5;
}

.premium-hero::before {
    width: 600px;
    height: 600px;
    top: -10%;
    left: -10%;
    background: radial-gradient(circle, var(--accent-primary-light) 0%, transparent 70%);
}

.premium-hero::after {
    width: 500px;
    height: 500px;
    bottom: -5%;
    right: -10%;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.12) 0%, transparent 70%);
}

.premium-hero > * {
    position: relative;
    z-index: 1;
}

.premium-hero__title {
    font-size: var(--text-6xl);
    font-weight: 900;
    line-height: 1.05;
    margin-bottom: var(--space-lg);
    letter-spacing: -0.02em;
}

.premium-hero__subtitle {
    font-size: var(--text-xl);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto var(--space-xl);
    line-height: var(--leading-relaxed);
}

.premium-hero__actions {
    display: flex;
    gap: var(--space-lg);
    justify-content: center;
    flex-wrap: wrap;
}

/* ── Premium Section ──────────────────────────────── */
.premium-section {
    padding: var(--space-xl) 0;
    position: relative;
}

.premium-section--compact {
    padding: var(--space-md) 0;
}

.premium-section__header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.premium-section__title {
    font-size: var(--text-4xl);
    font-weight: 900;
    margin-bottom: var(--space-sm);
    letter-spacing: -0.01em;
}

.premium-section__subtitle {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    max-width: 560px;
    margin: 0 auto;
    line-height: var(--leading-relaxed);
}

/* ── Premium Card ─────────────────────────────────── */
.premium-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    transition: transform var(--transition-smooth),
                box-shadow var(--transition-smooth),
                border-color var(--transition-base);
    position: relative;
    overflow: hidden;
}

.premium-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg), 0 0 30px var(--accent-primary-light);
    border-color: var(--accent-primary);
}

.premium-card--interactive {
    cursor: pointer;
}

.premium-card--no-hover:hover {
    transform: none;
    box-shadow: none;
}

.premium-card--centered {
    text-align: center;
}

/* ── Premium Badge (Pill) ─────────────────────────── */
.premium-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    line-height: 1.4;
}

.premium-badge--primary {
    background: var(--accent-primary);
    color: #FFFFFF;
}

.premium-badge--success {
    background: var(--correct);
    color: #FFFFFF;
}

.premium-badge--warning {
    background: var(--present);
    color: #0F172A;
}

.premium-badge--purple {
    background: var(--purple);
    color: #FFFFFF;
}

.premium-badge--outline {
    background: var(--accent-primary-light);
    color: var(--accent-primary);
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.premium-badge--live {
    background: var(--danger);
    color: #FFFFFF;
    animation: pulse-badge 2s ease-in-out infinite;
}

@keyframes pulse-badge {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* ── Premium Stat ─────────────────────────────────── */
.premium-stats {
    display: flex;
    justify-content: center;
    gap: var(--space-lg);
    flex-wrap: wrap;
    padding: var(--space-xl) 0;
}

.premium-stat {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--space-lg) var(--space-xl);
    text-align: center;
    min-width: 140px;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.premium-stat:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.premium-stat__value {
    font-family: var(--font-heading);
    font-size: var(--text-3xl);
    font-weight: var(--weight-extrabold);
    color: var(--accent-primary);
    line-height: 1;
    margin-bottom: var(--space-xs);
}

.premium-stat__label {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    font-weight: var(--weight-medium);
}

/* ── Premium Grid ─────────────────────────────────── */
.premium-grid {
    display: grid;
    gap: var(--space-xl);
}

.premium-grid--2 {
    grid-template-columns: repeat(2, 1fr);
}

.premium-grid--3 {
    grid-template-columns: repeat(3, 1fr);
}

.premium-grid--auto {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

/* ── Premium CTA Banner ──────────────────────────── */
.premium-cta {
    text-align: center;
    padding: var(--space-4xl) var(--space-xl);
    background: linear-gradient(135deg, 
        var(--accent-primary-light) 0%, 
        rgba(139, 92, 246, 0.08) 50%,
        rgba(0, 214, 143, 0.06) 100%
    );
    border-radius: var(--radius-2xl);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.premium-cta::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 50%, var(--accent-primary-light) 0%, transparent 50%);
    pointer-events: none;
    opacity: 0.5;
}

.premium-cta > * {
    position: relative;
    z-index: 1;
}

.premium-cta__title {
    font-size: var(--text-4xl);
    font-weight: 900;
    margin-bottom: var(--space-sm);
}

.premium-cta__desc {
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
    font-size: var(--text-lg);
}

/* ── Premium Button (gradient) ────────────────────── */
.btn--gradient {
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--purple) 100%);
    color: #FFFFFF;
    border: none;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.btn--gradient:hover {
    transform: scale(1.03);
    box-shadow: 0 6px 25px rgba(59, 130, 246, 0.4);
}

.btn--glow {
    box-shadow: 0 0 20px var(--accent-primary-light), 0 4px 15px rgba(59, 130, 246, 0.3);
}

.btn--glow:hover {
    box-shadow: 0 0 30px var(--accent-primary-light), 0 6px 25px rgba(59, 130, 246, 0.4);
}

/* ── Premium Timeline (How to Play) ───────────────── */
.premium-timeline {
    display: flex;
    gap: var(--space-xl);
    position: relative;
    justify-content: center;
    flex-wrap: wrap;
}

.premium-timeline::before {
    content: '';
    position: absolute;
    top: 28px;
    left: 15%;
    right: 15%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent-primary), var(--purple), transparent);
    opacity: 0.3;
    z-index: 0;
}

.premium-timeline__step {
    flex: 1;
    min-width: 200px;
    max-width: 260px;
    text-align: center;
    position: relative;
    z-index: 1;
}

.premium-timeline__number {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-lg);
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--purple) 100%);
    color: #FFFFFF;
    border-radius: var(--radius-full);
    font-family: var(--font-heading);
    font-weight: var(--weight-bold);
    font-size: var(--text-xl);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.premium-timeline__title {
    font-weight: var(--weight-bold);
    font-size: var(--text-lg);
    margin-bottom: var(--space-xs);
}

.premium-timeline__desc {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin: 0;
    line-height: var(--leading-relaxed);
}

/* ── Premium Feature (side-by-side) ───────────────── */
.premium-feature {
    display: flex;
    gap: var(--space-lg);
    align-items: flex-start;
}

.premium-feature__icon {
    width: 56px;
    height: 56px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-primary-light);
    border-radius: var(--radius-lg);
    font-size: 1.5rem;
    transition: transform var(--transition-base);
}

.premium-card:hover .premium-feature__icon {
    transform: scale(1.1);
}

.premium-feature__title {
    font-size: var(--text-base);
    font-weight: var(--weight-bold);
    margin-bottom: var(--space-xs);
}

.premium-feature__desc {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin: 0;
    line-height: var(--leading-relaxed);
}

/* ── Premium FAQ Accordion ────────────────────────── */
.premium-faq {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.premium-faq__item {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    transition: border-color var(--transition-base);
}

.premium-faq__item.is-open {
    border-color: var(--accent-primary);
    border-left: 3px solid var(--accent-primary);
}

.premium-faq__question {
    width: 100%;
    padding: var(--space-lg) var(--space-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-weight: var(--weight-semibold);
    font-size: var(--text-base);
    color: var(--text-primary);
    cursor: pointer;
    background: none;
    text-align: left;
    transition: color var(--transition-fast);
}

.premium-faq__question:hover {
    color: var(--accent-primary);
}

.premium-faq__question::after {
    content: '+';
    font-size: var(--text-xl);
    color: var(--text-tertiary);
    transition: transform var(--transition-base);
    flex-shrink: 0;
    margin-left: var(--space-md);
}

.premium-faq__item.is-open .premium-faq__question::after {
    content: '−';
    color: var(--accent-primary);
}

.premium-faq__answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-smooth);
}

.premium-faq__item.is-open .premium-faq__answer {
    max-height: 400px;
}

.premium-faq__answer-inner {
    padding: 0 var(--space-xl) var(--space-xl);
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
}

/* ── Mini Leaderboard ─────────────────────────────── */
.mini-leaderboard {
    max-width: 600px;
    margin: 0 auto;
}

.mini-leaderboard__row {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-lg);
    transition: background var(--transition-fast);
}

.mini-leaderboard__row:nth-child(odd) {
    background: var(--glass-bg-subtle);
}

.mini-leaderboard__row--gold {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1) 0%, rgba(245, 158, 11, 0.02) 100%) !important;
    border: 1px solid rgba(245, 158, 11, 0.15);
}

.mini-leaderboard__rank {
    font-family: var(--font-heading);
    font-size: var(--text-lg);
    width: 32px;
    text-align: center;
}

.mini-leaderboard__name {
    flex: 1;
    font-weight: var(--weight-semibold);
}

.mini-leaderboard__score {
    font-family: var(--font-heading);
    color: var(--accent-primary);
    font-weight: var(--weight-bold);
}

/* ── Testimonial Card ─────────────────────────────── */
.testimonial-card {
    padding: var(--space-xl);
    text-align: left;
}

.testimonial-card__stars {
    color: var(--gem-gold);
    font-size: var(--text-lg);
    margin-bottom: var(--space-md);
    letter-spacing: 0.1em;
}

.testimonial-card__text {
    font-size: var(--text-base);
    color: var(--text-primary);
    font-style: italic;
    margin-bottom: var(--space-md);
    line-height: var(--leading-relaxed);
}

.testimonial-card__author {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    font-weight: var(--weight-semibold);
}

/* ── Word of the Day ──────────────────────────────── */
.wotd {
    display: flex;
    gap: var(--space-2xl);
    align-items: center;
}

.wotd__content {
    flex: 1;
}

.wotd__word {
    font-family: var(--font-heading);
    font-size: var(--text-4xl);
    font-weight: 900;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
}

.wotd__type {
    font-size: var(--text-sm);
    color: var(--accent-primary);
    font-weight: var(--weight-semibold);
    margin-bottom: var(--space-sm);
}

.wotd__pronunciation {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    font-family: var(--font-mono);
    margin-bottom: var(--space-md);
}

.wotd__definition {
    font-size: var(--text-lg);
    color: var(--text-primary);
    font-weight: var(--weight-medium);
    margin-bottom: var(--space-md);
    line-height: var(--leading-relaxed);
}

.wotd__example {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    font-style: italic;
    padding-left: var(--space-lg);
    border-left: 3px solid var(--accent-primary);
    margin-bottom: var(--space-lg);
}

.wotd__decoration {
    width: 200px;
    height: 200px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 6rem;
    opacity: 0.8;
}

/* ── Scroll Animations ────────────────────────────── */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity var(--transition-smooth), transform var(--transition-smooth);
}

.animate-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.animate-on-scroll[data-delay="1"] { transition-delay: 100ms; }
.animate-on-scroll[data-delay="2"] { transition-delay: 200ms; }
.animate-on-scroll[data-delay="3"] { transition-delay: 300ms; }
.animate-on-scroll[data-delay="4"] { transition-delay: 400ms; }
.animate-on-scroll[data-delay="5"] { transition-delay: 500ms; }

/* ── Explore Games Hub ────────────────────────────── */
.explore-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--space-lg);
}

.explore-card {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg);
    text-decoration: none;
    color: inherit;
}

.explore-card__icon {
    font-size: 2rem;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-primary-light);
    border-radius: var(--radius-lg);
    flex-shrink: 0;
    transition: transform var(--transition-base);
}

.explore-card:hover .explore-card__icon {
    transform: scale(1.1) rotate(-5deg);
}

.explore-card__title {
    font-weight: var(--weight-bold);
    font-size: var(--text-base);
    margin-bottom: 2px;
}

.explore-card__desc {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin: 0;
}

/* ── About Section ────────────────────────────────── */
.about-section {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.about-section p {
    font-size: var(--text-base);
    line-height: var(--leading-relaxed);
    color: var(--text-secondary);
}

/* ── Daily Challenge Widget ───────────────────────── */
.daily-widget {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-xl);
    flex-wrap: wrap;
}

.daily-widget__info {
    flex: 1;
    min-width: 250px;
}

.daily-widget__label {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: var(--weight-semibold);
    margin-bottom: var(--space-xs);
}

.daily-widget__stat {
    font-size: var(--text-2xl);
    font-weight: var(--weight-extrabold);
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
}

.daily-widget__sub {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
}

.daily-widget__yesterday {
    padding: var(--space-md) var(--space-lg);
    background: var(--glass-bg-subtle);
    border-radius: var(--radius-lg);
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

/* ── Responsive ───────────────────────────────────── */
@media (max-width: 768px) {
    .premium-hero__title {
        font-size: var(--text-4xl);
    }

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

    .premium-section__title {
        font-size: var(--text-3xl);
    }

    .premium-grid--2,
    .premium-grid--3 {
        grid-template-columns: 1fr;
    }

    .premium-timeline {
        flex-direction: column;
        align-items: center;
    }

    .premium-timeline::before {
        display: none;
    }

    .premium-timeline__step {
        max-width: 100%;
    }

    .premium-cta__title {
        font-size: var(--text-3xl);
    }

    .wotd {
        flex-direction: column;
        text-align: center;
    }

    .wotd__example {
        text-align: left;
    }

    .wotd__decoration {
        width: 120px;
        height: 120px;
        font-size: 4rem;
    }

    .daily-widget {
        flex-direction: column;
        text-align: center;
    }

    .premium-hero {
        min-height: auto;
        padding: var(--space-2xl) 0 var(--space-lg);
    }
}

@media (max-width: 480px) {
    .premium-hero__title {
        font-size: var(--text-3xl);
    }

    .premium-stats {
        gap: var(--space-sm);
    }

    .premium-stat {
        min-width: 0;
        flex: 1 1 45%;
        padding: var(--space-md);
    }

    .premium-stat__value {
        font-size: var(--text-2xl);
    }
}