/* CSS Reset & Variables - TONE ĐỎ TRẮNG ĐEN */
:root {
    /* Dark Mode (Quyền lực, Bí ẩn) */
    --bg-color: #050505;
    --bg-alt: #111111;
    --text-main: #ffffff;
    --text-muted: #888888;
    --glass-bg: rgba(20, 20, 20, 0.6);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.8);
    --accent-color: #e60000;
    /* Đỏ quyền lực */
    --accent-glow: 0 0 25px rgba(230, 0, 0, 0.3);
    --danger: #ff3333;
    --radius-xl: 28px;
    --radius-lg: 20px;
    --radius-md: 14px;
    --gradient-bg: radial-gradient(circle at top right, #1a0505 0%, #050505 50%, #000000 100%);
}

body.light-mode {
    /* Light Mode (Sang trọng, Tinh tế) */
    --bg-color: #f8f9fa;
    --bg-alt: #ffffff;
    --text-main: #0a0a0a;
    --text-muted: #666666;
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(0, 0, 0, 0.06);
    --glass-shadow: 0 8px 24px 0 rgba(0, 0, 0, 0.06);
    --accent-color: #d90000;
    --gradient-bg: radial-gradient(circle at top right, #ffe6e6 0%, #f8f9fa 50%, #ffffff 100%);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
    background: var(--gradient-bg);
    background-color: var(--bg-color);
    color: var(--text-main);
    min-height: 100vh;
    transition: background 0.4s ease, color 0.4s ease;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
}

/* Abstract Background Orbs for Glass Effect */
.bg-orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(100px);
    z-index: -1;
    opacity: 0.5;
}

.orb-1 {
    top: -10%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: var(--accent-color);
}

.orb-2 {
    bottom: -10%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: #333333;
}

body.light-mode .orb-2 {
    background: #cccccc;
    opacity: 0.3;
}

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

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    flex: 1;
    width: 100%;
}

/* Header */
header {
    padding: 20px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--glass-border);
    margin-bottom: 32px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(var(--bg-color), 0.5);
}

.logo {
    font-size: 26px;
    font-weight: 900;
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-main);
}

.logo-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    object-fit: cover;
    box-shadow: var(--accent-glow);
    background: var(--bg-alt);
    /* Placeholder incase transparent */
}

/* Nút bấm SVG Sáng/Tối */
#theme-toggle {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(16px);
    color: var(--text-main);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

#theme-toggle:hover {
    transform: scale(1.1) rotate(15deg);
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
    box-shadow: var(--accent-glow);
}

/* Live Status Bar */
.live-status-bar {
    height: 3px;
    width: 100%;
    background: var(--glass-border);
    position: absolute;
    bottom: 0;
    left: 0;
    overflow: hidden;
}

.live-status-bar::after {
    content: '';
    display: block;
    height: 100%;
    width: 30%;
    background: var(--accent-color);
    box-shadow: var(--accent-glow);
    transform: translateX(-100%);
    transition: transform 0s;
}

.live-status-bar.updating::after {
    transform: translateX(300%);
    transition: transform 0.8s ease-in-out;
}

/* Ticker */
.ticker-wrapper {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(16px);
    border-radius: 50px;
    padding: 12px 24px;
    margin-bottom: 32px;
    overflow: hidden;
    display: flex;
    white-space: nowrap;
    box-shadow: var(--glass-shadow);
}

#news-ticker {
    display: flex;
    animation: ticker 40s linear infinite;
}

.ticker__item {
    margin-right: 48px;
    font-size: 14px;
    font-weight: 500;
}

.ticker__item i {
    color: var(--text-muted);
    font-weight: 400;
}

@keyframes ticker {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(-50%);
    }
}

/* Glass Cards (The Sleek Red/Black/White Feel) */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--glass-shadow);
    overflow: hidden;
    position: relative;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s ease, border-color 0.3s ease;
}

.glass-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    border-color: rgba(230, 0, 0, 0.3);
}

body.light-mode .glass-card:hover {
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* SVG Arrow trên Card */
.card-arrow {
    position: absolute;
    bottom: 20px;
    right: 20px;
    width: 36px;
    height: 36px;
    background: var(--accent-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: translateX(-15px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--accent-glow);
    z-index: 10;
}

.glass-card:hover .card-arrow,
.sidebar-card:hover .card-arrow,
.hero-card:hover .card-arrow {
    opacity: 1;
    transform: translateX(0);
}

/* Main Layout */
.main-content {
    display: grid;
    grid-template-columns: 2.2fr 1fr;
    gap: 24px;
    margin-bottom: 40px;
}

/* Hero Section */
.hero-card {
    display: block;
    position: relative;
    height: 100%;
    min-height: 480px;
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--glass-border);
}

.hero-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
    transition: transform 0.5s ease;
}

.hero-card:hover img {
    transform: scale(1.03);
}

.hero-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 80%;
    background: linear-gradient(to top, #000000 0%, rgba(0, 0, 0, 0.8) 30%, rgba(0, 0, 0, 0) 100%);
    z-index: 2;
}

.hero-content {
    position: absolute;
    bottom: 0;
    left: 0;
    padding: 40px;
    z-index: 3;
    color: #ffffff;
    width: 100%;
    padding-right: 80px;
}

.hero-content h2 {
    font-size: 34px;
    font-weight: 800;
    margin: 16px 0;
    line-height: 1.3;
    text-shadow: 0 4px 12px rgba(0, 0, 0, 0.8);
}

/* Badges & Meta */
.trending-badge {
    background: rgba(230, 0, 0, 0.15);
    backdrop-filter: blur(10px);
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 11px;
    font-weight: 800;
    display: inline-flex;
    align-items: center;
    border: 1px solid rgba(230, 0, 0, 0.4);
    color: #ff4d4d;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.pulse-dot {
    background: var(--danger);
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 0 10px var(--danger);
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(230, 0, 0, 0.7);
    }

    70% {
        transform: scale(1);
        box-shadow: 0 0 0 6px rgba(230, 0, 0, 0);
    }

    100% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(230, 0, 0, 0);
    }
}

.meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 500;
}

.hero-content .meta {
    color: #cccccc;
}

.dot {
    width: 4px;
    height: 4px;
    background: currentColor;
    border-radius: 50%;
    opacity: 0.5;
}

/* Sidebar */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.sidebar-title {
    font-size: 18px;
    font-weight: 800;
    margin-bottom: 8px;
    padding-left: 12px;
    border-left: 4px solid var(--accent-color);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.sidebar-card {
    display: flex;
    gap: 16px;
    padding: 12px;
    border-radius: var(--radius-md);
    background: var(--bg-alt);
    border: 1px solid var(--glass-border);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    animation: fadeUp 0.6s ease-out backwards;
}

.sidebar-card:hover {
    background: var(--glass-bg);
    border-color: rgba(230, 0, 0, 0.2);
    transform: translateX(8px);
}

.sidebar-card img {
    width: 100px;
    height: 84px;
    object-fit: cover;
    border-radius: 10px;
}

.sidebar-card .list-content {
    padding-right: 24px;
}

.sidebar-card .card-arrow {
    width: 28px;
    height: 28px;
    bottom: auto;
    top: 50%;
    transform: translateY(-50%) translateX(20px);
    right: 12px;
}

.sidebar-card:hover .card-arrow {
    transform: translateY(-50%) translateX(0);
}

.list-content h3 {
    font-size: 14px;
    line-height: 1.5;
    margin-bottom: 8px;
    font-weight: 700;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Grid */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
    margin-bottom: 40px;
}

.grid-card {
    display: flex;
    flex-direction: column;
    animation: fadeUp 0.6s ease-out backwards;
}

.grid-card img {
    width: 100%;
    height: 190px;
    object-fit: cover;
}

.grid-card .list-content {
    padding: 24px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.grid-card h3 {
    font-size: 17px;
    margin-bottom: 16px;
    font-weight: 700;
    line-height: 1.4;
}

/* Footer */
.site-footer {
    margin-top: 20px;
    padding: 32px 24px;
    text-align: center;
    border-top: 1px solid var(--glass-border);
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.6;
    background: rgba(var(--bg-color), 0.3);
    backdrop-filter: blur(10px);
}

.site-footer p {
    max-width: 600px;
    margin: 0 auto;
}

.site-footer a {
    color: var(--accent-color);
    font-weight: 700;
    text-decoration: none;
    transition: color 0.3s ease;
}

.site-footer a:hover {
    color: var(--danger);
    text-decoration: underline;
}

/* Loading State */
.loader-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 50vh;
    flex-direction: column;
    gap: 20px;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--glass-border);
    border-top: 3px solid var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive */
@media (max-width: 992px) {
    .main-content {
        grid-template-columns: 1fr;
    }

    .hero-card {
        min-height: 400px;
    }

    .sidebar-card:hover {
        transform: translateX(0);
    }
}

@media (max-width: 600px) {
    .hero-content h2 {
        font-size: 24px;
    }

    .hero-content {
        padding: 24px;
    }

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

    header {
        padding: 16px 0;
    }
}