/* ===== CSS Variables / Theming ===== */
:root,
[data-theme="light"] {
    --bg-primary: #f8f9fa;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f3f5;
    --bg-hover: #e9ecef;
    --bg-nav: #ffffff;
    --bg-card: #ffffff;
    --bg-input: #f1f3f5;
    --bg-footer: #141518;

    --border: #e2e4e9;
    --border-light: #eceef1;
    --border-hover: #ced4da;

    --text-primary: #1a1d21;
    --text-secondary: #5f6368;
    --text-tertiary: #9aa0a6;
    --text-inverse: #ffffff;

    --accent: #4C6EF5;
    --accent-hover: #3b5bdb;
    --accent-bg: #edf2ff;
    --accent-border: #bac8ff;

    --green: #16a34a;
    --green-bg: #ecfdf5;
    --green-border: #bbf7d0;
    --green-text: #15803d;

    --red: #dc2626;
    --red-bg: #fef2f2;
    --red-border: #fecaca;
    --red-text: #b91c1c;

    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.1);

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-full: 100px;
}

[data-theme="dark"] {
    --bg-primary: #121316;
    --bg-secondary: #1a1b1f;
    --bg-tertiary: #222328;
    --bg-hover: #2a2b31;
    --bg-nav: #1a1b1f;
    --bg-card: #1e1f24;
    --bg-input: #2a2b31;
    --bg-footer: #0d0e10;

    --border: #2e2f35;
    --border-light: #262730;
    --border-hover: #3e3f47;

    --text-primary: #e8eaed;
    --text-secondary: #9aa0a6;
    --text-tertiary: #5f6368;
    --text-inverse: #121316;

    --accent: #5c7cfa;
    --accent-hover: #748ffc;
    --accent-bg: rgba(92,124,250,0.12);
    --accent-border: rgba(92,124,250,0.25);

    --green: #22c55e;
    --green-bg: rgba(34,197,94,0.1);
    --green-border: rgba(34,197,94,0.25);
    --green-text: #4ade80;

    --red: #ef4444;
    --red-bg: rgba(239,68,68,0.1);
    --red-border: rgba(239,68,68,0.2);
    --red-text: #f87171;

    --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.5);
}

/* ===== Reset ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    text-decoration: none;
    color: inherit;
}

button {
    font-family: inherit;
    cursor: pointer;
}

/* ===== Top Navigation ===== */
.top-nav {
    background: var(--bg-nav);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(12px);
}

[data-theme="light"] .top-nav {
    background: rgba(255,255,255,0.92);
}

[data-theme="dark"] .top-nav {
    background: rgba(26,27,31,0.92);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    height: 56px;
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.logo-img {
    display: block;
    height: 24px;
    width: auto;
}

[data-theme="dark"] .logo-img {
    filter: invert(1);
}

.footer-logo-img {
    filter: invert(1);
}

[data-theme="dark"] .footer-logo-img {
    filter: none;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2px;
}

.nav-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    transition: all 0.15s;
}

.nav-link:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.nav-link.active {
    color: var(--text-primary);
    font-weight: 600;
}

/* Search */
.search-box {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 7px 14px;
    color: var(--text-tertiary);
    cursor: pointer;
    min-width: 200px;
    transition: all 0.15s;
    font-size: 13px;
}

.search-box:hover {
    border-color: var(--border-hover);
    background: var(--bg-hover);
}

.search-placeholder {
    font-size: 13px;
}

/* Theme Toggle */
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    transition: all 0.15s;
}

.theme-toggle:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--border-hover);
}

[data-theme="light"] .icon-moon { display: none; }
[data-theme="dark"] .icon-sun { display: none; }
[data-theme="light"] .icon-sun { display: block; }
[data-theme="dark"] .icon-moon { display: block; }

/* Nav Buttons */
.btn-deposit {
    display: flex;
    align-items: center;
    gap: 6px;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    padding: 7px 16px;
    font-size: 13px;
    font-weight: 600;
    transition: background 0.15s;
}

.btn-deposit:hover {
    background: var(--accent-hover);
}

.btn-login {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 7px 12px;
    font-size: 13px;
    font-weight: 500;
    transition: color 0.15s;
}

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

.btn-signup {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 7px 16px;
    font-size: 13px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: all 0.15s;
}

.btn-signup:hover {
    background: var(--bg-hover);
    border-color: var(--border-hover);
}

/* ===== Category Bar ===== */
.category-bar {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
}

.category-container {
    display: flex;
    align-items: center;
    gap: 16px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    height: 44px;
    overflow-x: auto;
}

.category-container::-webkit-scrollbar {
    display: none;
}

.browse-tabs {
    display: flex;
    align-items: center;
    gap: 2px;
    flex-shrink: 0;
}

.browse-tab {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    padding: 6px 12px;
    border-radius: var(--radius-full);
    transition: all 0.15s;
    white-space: nowrap;
}

.browse-tab:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.browse-tab.active {
    background: var(--text-primary);
    color: var(--text-inverse);
    font-weight: 600;
}

.topic-divider {
    width: 1px;
    height: 20px;
    background: var(--border);
    flex-shrink: 0;
}

.topic-tags {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
}

.topic-tag {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 5px 12px;
    border-radius: var(--radius-full);
    transition: all 0.15s;
    white-space: nowrap;
}

.topic-tag:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.tag-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    flex-shrink: 0;
}

/* ===== Main Layout ===== */
.main-layout {
    display: flex;
    gap: 24px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 24px;
}

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

/* ===== Featured / Breaking ===== */
.featured-section {
    margin-bottom: 28px;
}

.featured-label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 700;
    color: var(--red);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 14px;
}

.featured-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
}

.featured-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: all 0.15s;
    cursor: pointer;
}

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

.featured-card-icon {
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    position: relative;
}

.featured-card-body {
    padding: 14px 16px 4px;
    flex: 1;
}

.featured-tag {
    font-size: 11px;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.featured-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 4px 0 4px;
    line-height: 1.35;
}

.featured-meta {
    font-size: 12px;
    color: var(--text-tertiary);
    margin-bottom: 12px;
}

.featured-outcomes {
    display: flex;
    gap: 6px;
    margin-bottom: 4px;
}

.featured-chart {
    padding: 0 16px 12px;
    height: 48px;
}

.featured-chart svg {
    width: 100%;
    height: 100%;
}

/* ===== Outcome Buttons ===== */
.outcome-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    border: none;
    border-radius: var(--radius-sm);
    padding: 8px 12px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
}

.outcome-btn strong {
    font-weight: 700;
}

.outcome-btn.yes {
    background: var(--green-bg);
    color: var(--green-text);
    border: 1px solid var(--green-border);
}

.outcome-btn.yes:hover {
    background: var(--green);
    color: #fff;
    border-color: var(--green);
}

.outcome-btn.no {
    background: var(--red-bg);
    color: var(--red-text);
    border: 1px solid var(--red-border);
}

.outcome-btn.no:hover {
    background: var(--red);
    color: #fff;
    border-color: var(--red);
}

.outcome-btn.compact {
    padding: 6px 10px;
    font-size: 12px;
}

/* ===== Markets Section ===== */
.markets-section {
    margin-bottom: 32px;
}

.markets-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.markets-header h2 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

.sort-select {
    background: var(--bg-input);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 6px 12px;
    font-size: 13px;
    font-weight: 500;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: inherit;
    appearance: auto;
}

.sort-select:hover {
    border-color: var(--border-hover);
}

/* Markets Grid */
.markets-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 12px;
}

.market-card {
    display: flex;
    align-items: center;
    gap: 14px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 14px 16px;
    transition: all 0.15s;
    cursor: pointer;
}

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

.card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
}

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

.card-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.35;
    margin-bottom: 2px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-meta {
    display: flex;
    align-items: center;
    gap: 8px;
}

.card-vol {
    font-size: 12px;
    color: var(--text-tertiary);
    font-weight: 500;
}

.card-outcomes {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex-shrink: 0;
}

/* Load More */
.load-more {
    text-align: center;
    margin-top: 20px;
}

.load-more-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--accent);
    padding: 10px 24px;
    font-size: 14px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: all 0.15s;
}

.load-more-btn:hover {
    background: var(--accent-bg);
    border-color: var(--accent-border);
}

/* ===== Sidebar ===== */
.sidebar {
    width: 320px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.sidebar-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 18px;
    position: sticky;
    top: 76px;
}

.sidebar-card + .sidebar-card {
    position: static;
}

.sidebar-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 14px;
    color: var(--text-secondary);
}

.sidebar-header h3 {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
}

.sidebar-list {
    display: flex;
    flex-direction: column;
}

.sidebar-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 0;
    border-bottom: 1px solid var(--border-light);
    cursor: pointer;
    transition: all 0.1s;
}

.sidebar-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.sidebar-item:first-child {
    padding-top: 0;
}

.sidebar-item:hover .sidebar-title {
    color: var(--accent);
}

.sidebar-rank {
    font-size: 11px;
    font-weight: 700;
    color: var(--text-tertiary);
    width: 18px;
    text-align: center;
    flex-shrink: 0;
}

.sidebar-info {
    flex: 1;
    min-width: 0;
}

.sidebar-title {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: color 0.15s;
}

.sidebar-vol {
    display: block;
    font-size: 11px;
    color: var(--text-tertiary);
    margin-top: 1px;
}

.sidebar-pct {
    display: flex;
    align-items: center;
    gap: 3px;
    font-size: 13px;
    font-weight: 700;
    flex-shrink: 0;
    padding: 3px 8px;
    border-radius: var(--radius-sm);
}

.sidebar-pct.up {
    color: var(--green-text);
    background: var(--green-bg);
}

.sidebar-pct.down {
    color: var(--red-text);
    background: var(--red-bg);
}

/* Hot Topics */
.hot-topics {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.hot-topic {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-tertiary);
    padding: 5px 12px;
    border-radius: var(--radius-full);
    transition: all 0.15s;
    border: 1px solid transparent;
}

.hot-topic:hover {
    color: var(--accent);
    background: var(--accent-bg);
    border-color: var(--accent-border);
}

/* ===== Footer ===== */
.footer {
    background: var(--bg-footer);
    color: #9aa0a6;
    margin-top: 40px;
}

.footer-main {
    display: flex;
    gap: 64px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 48px 24px 32px;
}

.footer-brand {
    flex: 0 0 260px;
}

.footer-logo {
    margin-bottom: 10px;
}

.footer-desc {
    font-size: 13px;
    color: #6b7280;
    line-height: 1.5;
}

.footer-links {
    display: flex;
    flex: 1;
    gap: 48px;
}

.footer-col h4 {
    font-size: 12px;
    font-weight: 700;
    color: #ffffff;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    margin-bottom: 14px;
}

.footer-col a {
    display: block;
    font-size: 13px;
    color: #6b7280;
    margin-bottom: 10px;
    transition: color 0.15s;
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px 24px;
    border-top: 1px solid #262730;
    font-size: 12px;
    color: #4b5563;
}

.footer-legal {
    display: flex;
    gap: 20px;
}

.footer-legal a {
    color: #4b5563;
    transition: color 0.15s;
}

.footer-legal a:hover {
    color: #9aa0a6;
}

/* ===== Responsive ===== */
@media (max-width: 1200px) {
    .sidebar {
        width: 280px;
    }

    .nav-links {
        display: none;
    }

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

@media (max-width: 960px) {
    .main-layout {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        flex-direction: row;
        overflow-x: auto;
    }

    .sidebar-card {
        position: static;
        min-width: 300px;
        flex-shrink: 0;
    }

    .featured-cards {
        grid-template-columns: 1fr;
    }

    .footer-main {
        flex-direction: column;
        gap: 32px;
    }

    .footer-brand {
        flex: none;
    }

    .footer-links {
        flex-wrap: wrap;
        gap: 32px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
}

@media (max-width: 640px) {
    .nav-container {
        padding: 0 16px;
    }

    .search-box {
        display: none;
    }

    .btn-login {
        display: none;
    }

    .main-layout {
        padding: 16px;
        gap: 16px;
    }

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

    .market-card {
        flex-wrap: wrap;
    }

    .card-outcomes {
        flex-direction: row;
        width: 100%;
        margin-top: 8px;
    }

    .outcome-btn.compact {
        flex: 1;
    }

    .category-container {
        padding: 0 16px;
    }

    .featured-cards {
        gap: 10px;
    }

    .sidebar {
        flex-direction: column;
    }

    .sidebar-card {
        min-width: unset;
    }

    .footer-links {
        grid-template-columns: repeat(2, 1fr);
        display: grid;
        gap: 24px;
    }
}