/**
 * TCGkad — modern UI layer (loads after app.css)
 */

:root {
    --bg-base: #08080c;
    --bg-surface: rgba(18, 18, 26, 0.65);
    --bg-surface-solid: #12121a;
    --bg-elevated: rgba(28, 28, 40, 0.85);
    --bg-hover: rgba(255, 255, 255, 0.04);
    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-default: rgba(255, 255, 255, 0.1);
    --border-accent: rgba(124, 106, 255, 0.35);
    --accent: #8b7cff;
    --accent-bright: #a594ff;
    --accent-dim: #5c4fd4;
    --accent-glow: rgba(124, 106, 255, 0.35);
    --text-primary: #f4f4f8;
    --text-secondary: #a8a8b8;
    --text-muted: #6b6b7d;
    --radius-sm: 10px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 24px;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
    --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(124, 106, 255, 0.15);
    --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
    --font-display: 'DM Sans', system-ui, sans-serif;
}

/* Ambient background */
body {
    background-color: var(--bg-base);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: -2;
    background:
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(124, 106, 255, 0.18), transparent 55%),
        radial-gradient(ellipse 60% 40% at 100% 0%, rgba(90, 69, 224, 0.12), transparent 50%),
        radial-gradient(ellipse 50% 30% at 0% 100%, rgba(255, 107, 53, 0.06), transparent 45%),
        var(--bg-base);
    pointer-events: none;
}

body::after {
    content: '';
    position: fixed;
    inset: 0;
    z-index: -1;
    opacity: 0.4;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
    pointer-events: none;
}

a { color: var(--accent-bright); transition: color 0.2s var(--ease-out); }
a:hover { color: #c4b8ff; }

/* —— Nav —— */
.navbar {
    background: rgba(8, 8, 12, 0.72);
    border-bottom-color: var(--border-subtle);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.04), var(--shadow-sm);
}
.nav-link.is-active {
    background: rgba(124, 106, 255, 0.15);
    box-shadow: inset 0 0 0 1px var(--border-accent);
}
.nav-badge {
    background: linear-gradient(135deg, var(--accent), var(--accent-dim));
    box-shadow: 0 2px 8px var(--accent-glow);
}
.nav-cta.btn-primary {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dim) 100%);
    box-shadow: 0 4px 16px var(--accent-glow);
}
.nav-cta.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 24px var(--accent-glow);
}

/* —— Buttons —— */
.btn {
    border-radius: var(--radius-sm);
    font-weight: 600;
    letter-spacing: 0.01em;
    transition: transform 0.2s var(--ease-out), box-shadow 0.2s var(--ease-out), background 0.2s, color 0.2s, border-color 0.2s;
}
.btn-primary {
    background: linear-gradient(135deg, var(--accent) 0%, #6a58e8 100%);
    box-shadow: 0 4px 14px rgba(124, 106, 255, 0.35);
    border: 1px solid rgba(255, 255, 255, 0.08);
}
.btn-primary:hover {
    background: linear-gradient(135deg, #9d8fff 0%, var(--accent) 100%);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(124, 106, 255, 0.45);
}
.btn-outline {
    border-color: var(--border-accent);
    color: var(--accent-bright);
    backdrop-filter: blur(8px);
}
.btn-outline:hover {
    background: rgba(124, 106, 255, 0.12);
    border-color: var(--accent);
    color: #fff;
    transform: translateY(-1px);
}
.btn-sm {
    border-radius: 8px;
}
.btn-sm.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-dim));
}

/* —— Hero (home) —— */
.hero {
    position: relative;
    padding: clamp(64px, 12vw, 120px) 20px clamp(72px, 10vw, 100px);
    text-align: center;
    overflow: hidden;
    background: transparent;
    border-bottom: 1px solid var(--border-subtle);
}
.hero__glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
    opacity: 0.5;
}
.hero__glow--1 {
    width: min(480px, 70vw);
    height: min(480px, 70vw);
    top: -30%;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(124, 106, 255, 0.35);
}
.hero__glow--2 {
    width: 280px;
    height: 280px;
    bottom: -20%;
    right: 10%;
    background: rgba(255, 107, 53, 0.15);
}
.hero__inner {
    position: relative;
    z-index: 1;
    max-width: 720px;
    margin: 0 auto;
}
.hero__eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    margin-bottom: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--accent-bright);
    background: rgba(124, 106, 255, 0.12);
    border: 1px solid var(--border-accent);
    border-radius: 999px;
    backdrop-filter: blur(12px);
}
.hero h1 {
    font-size: clamp(2.25rem, 6vw, 3.75rem);
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1.08;
    color: var(--text-primary);
}
.hero h1 span {
    background: linear-gradient(135deg, #c4b8ff 0%, var(--accent) 50%, #6a58e8 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.hero-sub {
    font-size: clamp(1rem, 2vw, 1.15rem);
    color: var(--text-secondary);
    margin: 20px auto 0;
    max-width: 520px;
    line-height: 1.65;
}
.hero-actions {
    margin-top: 36px;
    gap: 14px;
}

/* —— Stats bar —— */
.stats-bar {
    background: var(--bg-surface);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-subtle);
    padding: 28px 20px;
}
.stat-num {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    background: linear-gradient(180deg, #fff 0%, var(--accent-bright) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.stat span:last-child {
    color: var(--text-muted);
    font-weight: 500;
}

/* —— Sections —— */
.section {
    padding: clamp(48px, 8vw, 80px) 20px;
}
.section.bg-alt {
    background: rgba(0, 0, 0, 0.2);
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
}
.section-title {
    font-size: clamp(1.25rem, 3vw, 1.5rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 32px;
}
.see-all {
    color: var(--text-secondary);
    font-weight: 500;
    transition: color 0.2s;
}
.see-all:hover {
    color: var(--accent-bright);
}

/* —— Game & feature cards —— */
.game-grid {
    max-width: 680px;
    gap: 24px;
}
.game-card {
    background: var(--bg-surface);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
    padding: 40px 28px;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s var(--ease-out), border-color 0.3s, box-shadow 0.3s;
}
.game-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md), var(--shadow-glow);
}
.game-card.op:hover { border-color: rgba(255, 107, 53, 0.5); box-shadow: var(--shadow-md), 0 0 40px rgba(255, 107, 53, 0.12); }
.game-card.poke:hover { border-color: rgba(255, 215, 0, 0.45); box-shadow: var(--shadow-md), 0 0 40px rgba(255, 215, 0, 0.1); }
.game-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
    background: rgba(124, 106, 255, 0.12);
    font-size: 1.5rem;
}
.game-card.op .game-icon { background: rgba(255, 107, 53, 0.12); }
.game-card.poke .game-icon { background: rgba(255, 215, 0, 0.1); }
.feature {
    background: var(--bg-surface);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    transition: border-color 0.25s, transform 0.25s var(--ease-out);
}
.feature:hover {
    border-color: var(--border-accent);
    transform: translateY(-4px);
}
.feature-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: rgba(124, 106, 255, 0.15);
    font-size: 1.25rem;
    margin-bottom: 16px;
}
.feature h3 {
    font-size: 1.05rem;
    letter-spacing: -0.01em;
}
.feature p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* —— Listing / catalog cards —— */
.card-item {
    background: var(--bg-surface);
    backdrop-filter: blur(8px);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}
.card-item:hover {
    border-color: var(--border-accent);
    transform: translateY(-6px);
    box-shadow: var(--shadow-md), var(--shadow-glow);
}
.card-img {
    background: linear-gradient(165deg, rgba(28, 28, 40, 0.9) 0%, rgba(12, 12, 18, 0.95) 100%);
}
.card-info {
    border-top-color: var(--border-subtle);
    padding: 14px 16px 16px;
}
.card-name {
    font-size: 0.92rem;
    letter-spacing: -0.01em;
}
.card-set {
    color: var(--text-muted);
}
.card-price {
    color: var(--accent-bright);
    font-size: 0.95rem;
}

/* —— Page layout —— */
.app-body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}
.site-main {
    flex: 1;
}
.page-content {
    padding: clamp(28px, 5vw, 48px) 20px clamp(56px, 8vw, 80px);
}
.page-content--after-hero {
    padding-top: clamp(24px, 4vw, 36px);
}
.page-hero__actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}
.page-hero {
    margin: 0 -20px 32px;
    padding: clamp(28px, 5vw, 40px) 20px;
    background: var(--bg-surface);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-subtle);
}
.page-hero .container,
.page-hero-inner {
    max-width: 1200px;
    margin: 0 auto;
}
.page-hero .page-title {
    margin-bottom: 6px;
}
.page-hero .page-sub,
.page-hero .browse-subtitle {
    margin-bottom: 0;
    color: var(--text-secondary);
}
.page-title {
    font-size: clamp(1.75rem, 4vw, 2.35rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--text-primary);
    margin-bottom: 8px;
}
.page-header-row {
    align-items: flex-end;
    margin-bottom: 0;
}
.breadcrumb {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
}
.breadcrumb a {
    color: var(--text-secondary);
}
.breadcrumb a:hover {
    color: var(--accent-bright);
}

/* —— Search & filters —— */
.search-panel {
    background: var(--bg-surface);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
    padding: 18px 20px;
    margin-bottom: 32px;
    box-shadow: var(--shadow-sm);
}
.search-input,
.select-sm,
.form-group input,
.form-group select,
.form-group textarea {
    background: rgba(8, 8, 12, 0.6);
    border-color: var(--border-default);
    border-radius: var(--radius-sm);
    transition: border-color 0.2s, box-shadow 0.2s;
}
.search-input:focus,
.select-sm:focus,
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(124, 106, 255, 0.2);
}
.filter-tabs .tab {
    background: rgba(255, 255, 255, 0.03);
    border-color: var(--border-default);
    color: var(--text-secondary);
    padding: 10px 20px;
    font-weight: 600;
}
.filter-tabs .tab:hover,
.filter-tabs .tab.active {
    background: linear-gradient(135deg, var(--accent), var(--accent-dim));
    border-color: transparent;
    color: #fff;
    box-shadow: 0 4px 16px var(--accent-glow);
}
.results-count {
    color: var(--text-muted);
}

/* —— Tabs, pagination —— */
.pagination {
    gap: 8px;
    margin-top: 48px;
}
.page-btn {
    min-width: 40px;
    text-align: center;
    background: var(--bg-surface);
    border-color: var(--border-default);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    transition: all 0.2s var(--ease-out);
}
.page-btn:hover,
.page-btn.active {
    background: linear-gradient(135deg, var(--accent), var(--accent-dim));
    border-color: transparent;
    color: #fff;
    box-shadow: 0 4px 12px var(--accent-glow);
}

/* —— Detail pages —— */
.card-detail-layout {
    gap: 48px;
}
.card-detail-img img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}
.listing-price-box,
.form-card,
.sale-confirmation,
.nearby-controls,
.auth-box,
.profile-header {
    background: var(--bg-surface);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}
.big-price {
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--accent-bright), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.game-heading {
    border-left: 3px solid var(--accent);
    padding-left: 16px;
    letter-spacing: -0.02em;
}
.set-card {
    background: var(--bg-surface);
    border-color: var(--border-default);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: transform 0.25s var(--ease-out), border-color 0.25s, box-shadow 0.25s;
}
.set-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

/* —— Portfolio & tables —— */
.summary-stat,
.order-row,
.follow-list__item,
.cart-checkout-bar {
    background: var(--bg-surface);
    border-color: var(--border-default);
    border-radius: var(--radius-md);
}
.portfolio-table th,
.listings-table th {
    color: var(--text-muted);
    border-bottom-color: var(--border-subtle);
}

/* —— Auth —— */
.auth-page {
    min-height: calc(100vh - 180px);
}
.auth-box {
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}
.auth-brand {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 1.2rem;
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.02em;
    margin-bottom: 24px;
}
.auth-brand:hover {
    color: #fff;
}
.auth-brand span {
    color: var(--accent-bright);
}
.auth-brand .fa-bolt {
    color: var(--accent-bright);
}
.breadcrumb__sep {
    color: var(--text-muted);
    margin: 0 4px;
}

/* —— Search bar (multi-filter pages) —— */
.search-bar {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
}
@media (min-width: 640px) {
    .search-bar {
        grid-template-columns: 1fr 1fr;
    }
    .search-bar .search-input {
        grid-column: 1 / -1;
    }
    .search-bar .search-submit {
        grid-column: 1 / -1;
    }
}
@media (min-width: 1024px) {
    .search-bar {
        grid-template-columns: minmax(200px, 2fr) repeat(4, minmax(110px, 1fr)) auto;
        align-items: center;
    }
    .search-bar .search-input {
        grid-column: auto;
    }
    .search-bar .search-submit {
        grid-column: auto;
    }
}

/* —— Empty & flash —— */
.error-code {
    font-size: clamp(4rem, 15vw, 7rem);
    letter-spacing: -0.04em;
    background: linear-gradient(180deg, var(--accent-bright), var(--accent-dim));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    opacity: 0.9;
}
.empty-state {
    padding: 80px 24px;
    background: var(--bg-surface);
    border: 1px dashed var(--border-default);
    border-radius: var(--radius-xl);
    max-width: 480px;
    margin: 0 auto;
}
.flash-success {
    background: rgba(34, 80, 34, 0.4);
    backdrop-filter: blur(8px);
}
.flash-error {
    background: rgba(80, 34, 34, 0.4);
    backdrop-filter: blur(8px);
}

/* —— Footer —— */
.footer {
    margin-top: auto;
    background: rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(12px);
    border-top: 1px solid var(--border-subtle);
    padding: 48px 20px 32px;
    text-align: left;
}
.footer__grid {
    display: grid;
    grid-template-columns: 1.5fr repeat(2, 1fr);
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto 40px;
}
.footer__brand {
    font-size: 1.15rem;
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.02em;
    margin-bottom: 8px;
}
.footer__brand span {
    color: var(--accent-bright);
}
.footer__tagline {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.5;
    max-width: 280px;
}
.footer__col h4 {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-bottom: 14px;
}
.footer__col a {
    display: block;
    color: var(--text-secondary);
    font-size: 0.9rem;
    padding: 4px 0;
    transition: color 0.2s;
}
.footer__col a:hover {
    color: var(--accent-bright);
}
.footer__bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 24px;
    border-top: 1px solid var(--border-subtle);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 12px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* —— Messenger —— */
.messenger {
    background: var(--bg-surface);
    backdrop-filter: blur(12px);
    border-color: var(--border-default);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}
.messenger-sidebar {
    background: rgba(0, 0, 0, 0.2);
}

@media (max-width: 768px) {
    .footer__grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }
    .page-hero {
        margin-left: -20px;
        margin-right: -20px;
    }
}