:root {
    /* Main Content (Light theme) */
    --bg-main: #f8fafc;
    --bg-card: #ffffff;
    --border-card: #e2e8f0;
    --border-card-hover: #93c5fd;
    --border-input: #cbd5e1;
    --border-focus: #2563eb;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;

    /* Accents */
    --accent-blue: #2563eb;
    --accent-blue-hover: #1d4ed8;

    /* Buttons */
    --btn-copy-bg: #2563eb;
    --btn-copy-hover: #1d4ed8;
    --btn-copied-bg: #059669;

    /* Layout & Elevation */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 12px;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.05), 0 1px 2px rgba(0, 0, 0, 0.03);
    --shadow-hover: 0 4px 12px rgba(37, 99, 235, 0.08), 0 2px 4px rgba(0, 0, 0, 0.04);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
        Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Header (Dark Tone) */
.site-header {
    padding: 2.25rem 0 1.75rem;
    border-bottom: 1px solid #1e293b;
    background: #0f172a;
    color: #f8fafc;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.header-title-group h1 {
    font-size: 1.875rem;
    font-weight: 800;
    letter-spacing: -0.025em;
    color: #f8fafc;
}

.header-subtitle {
    color: #94a3b8;
    font-size: 0.95rem;
    margin-top: 0.25rem;
}

.header-subtitle code {
    background-color: rgba(255, 255, 255, 0.1);
    color: #38bdf8;
    padding: 0.1rem 0.35rem;
    border-radius: 4px;
    font-size: 0.875rem;
}

.header-links a {
    color: #cbd5e1;
    text-decoration: none;
    font-size: 0.875rem;
    padding: 0.5rem 0.875rem;
    border: 1px solid #334155;
    border-radius: var(--radius-sm);
    background-color: #1e293b;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.header-links a:hover {
    color: #ffffff;
    border-color: #475569;
    background-color: #334155;
}

/* Main Layout */
.main-content {
    flex: 1;
    padding: 2rem 0 3.5rem;
    background-color: var(--bg-main);
}

/* Controls Toolbar */
.toolbar {
    margin-bottom: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
}

.toolbar-controls {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.search-wrapper {
    position: relative;
    width: 100%;
}

.search-icon {
    position: absolute;
    left: 0.875rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
    font-size: 0.95rem;
}

.search-input {
    width: 100%;
    height: 42px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-input);
    border-radius: var(--radius-sm);
    padding: 0 1rem 0 2.5rem;
    color: var(--text-primary);
    font-size: 0.9375rem;
    outline: none;
    transition: all 0.2s ease;
}

.search-input::placeholder {
    color: var(--text-muted);
}

.search-input:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.category-filters {
    display: inline-flex;
    background-color: #e2e8f0;
    border: 1px solid #cbd5e1;
    border-radius: var(--radius-sm);
    padding: 3px;
    gap: 2px;
}

.filter-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.35rem 0.75rem;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.15s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.filter-btn:hover {
    color: var(--text-primary);
}

.filter-btn.active {
    background-color: var(--accent-blue);
    color: #ffffff;
}

.filter-btn .count {
    opacity: 0.85;
    font-size: 0.8rem;
}

.summary-count {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Leagues Grid */
.leagues-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
    gap: 0.875rem;
}

/* League Card (Inline Compact) */
.league-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-md);
    padding: 0.75rem 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    box-shadow: var(--shadow);
    transition: all 0.15s ease;
}

.league-card:hover {
    border-color: var(--border-card-hover);
    box-shadow: var(--shadow-hover);
    transform: translateY(-1px);
}

.logo-wrapper {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    background-color: #f8fafc;
    border: 1px solid var(--border-card);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    flex-shrink: 0;
}

.league-logo {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    padding: 2px;
}

.logo-placeholder {
    font-size: 0.8125rem;
    font-weight: 700;
    color: var(--text-muted);
    letter-spacing: 0.05em;
}

.card-content {
    flex: 1;
    min-width: 0;
}

.league-title {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.25;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    word-break: break-word;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 36px;
    font-size: 0.8125rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all 0.15s ease;
}

.btn--copy {
    width: 36px;
    height: 36px;
    padding: 0;
    flex-shrink: 0;
    background-color: var(--btn-copy-bg);
    color: #ffffff;
}

.btn--copy:hover {
    background-color: var(--btn-copy-hover);
}

.btn--copy.btn--copied {
    background-color: var(--btn-copied-bg) !important;
}

.btn--copy svg {
    width: 17px;
    height: 17px;
    pointer-events: none;
}

.btn--copy .icon-check {
    display: none;
}

.btn--copy.btn--copied .icon-copy {
    display: none;
}

.btn--copy.btn--copied .icon-check {
    display: block;
}

.btn--secondary {
    background-color: #ffffff;
    color: var(--text-primary);
    border: 1px solid var(--border-input);
    margin-top: 1rem;
    padding: 0 1.25rem;
}

.btn--secondary:hover {
    border-color: var(--border-focus);
    color: var(--accent-blue);
}

/* Status States */
.status-container {
    margin: 2rem 0;
}

.loading-state {
    text-align: center;
    padding: 4rem 1rem;
    color: var(--text-secondary);
    font-size: 1.125rem;
}

.empty-state {
    background-color: var(--bg-card);
    border: 1px dashed var(--border-input);
    border-radius: var(--radius-lg);
    text-align: center;
    padding: 3rem 1.5rem;
    max-width: 500px;
    margin: 2rem auto;
}

.empty-icon {
    font-size: 2.25rem;
    margin-bottom: 0.75rem;
}

.empty-state h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.empty-state p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    margin-bottom: 0.5rem;
}

.error-banner {
    background-color: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: var(--radius-md);
    padding: 1.25rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    color: #991b1b;
    max-width: 700px;
    margin: 2rem auto;
}

.error-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.error-content {
    flex: 1;
}

.error-banner h3 {
    font-size: 1rem;
    font-weight: 700;
    color: #991b1b;
    margin-bottom: 0.25rem;
}

.error-banner p {
    font-size: 0.875rem;
    color: #b91c1c;
}

.btn--retry {
    background-color: #dc2626;
    color: #ffffff;
    flex-shrink: 0;
    padding: 0 1rem;
}

.btn--retry:hover {
    background-color: #b91c1c;
}

/* Footer (Dark Tone) */
.site-footer {
    border-top: 1px solid #1e293b;
    padding: 1.75rem 0;
    background-color: #0f172a;
    color: #94a3b8;
    font-size: 0.875rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-content a {
    color: #cbd5e1;
    text-decoration: underline;
}

.footer-content a:hover {
    color: #ffffff;
}

/* Responsive Breakpoints */
@media (min-width: 768px) {
    .toolbar-controls {
        flex-direction: row;
        align-items: center;
        gap: 1rem;
    }

    .search-wrapper {
        flex: 1;
    }

    .category-filters {
        flex-shrink: 0;
    }
}

@media (max-width: 767px) {
    .category-filters {
        width: 100%;
        display: flex;
    }

    .filter-btn {
        flex: 1;
        justify-content: center;
    }
}

@media (max-width: 640px) {
    .header-title-group h1 {
        font-size: 1.5rem;
    }

    .leagues-grid {
        grid-template-columns: 1fr;
    }
}