:root {
    --bg-dark: #050508; 
    --primary: #7c3aed; 
    --primary-glow: rgba(124, 58, 237, 0.4); 
    --neon-cyan: #00f3ff; 
    --neon-orange: #ff9900;
    --glass: rgba(15, 15, 20, 0.75);
    --glass-border: rgba(255, 255, 255, 0.08);
    --text-main: #e2e8f0; 
    --text-muted: #94a3b8;
    --font-heading: 'Exo 2', sans-serif; 
    --font-body: 'Be Vietnam Pro', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; scroll-behavior: smooth; }
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #000; }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--neon-cyan); }

body {
    font-family: var(--font-body);
    background-color: var(--bg-dark);
    color: var(--text-main);
    overflow-x: hidden;
    line-height: 1.6;
    
    /* BỔ SUNG 3 DÒNG DƯỚI ĐÂY */
    display: flex;
    flex-direction: column;
    min-height: 100vh; /* Bắt buộc body phải cao tối thiểu bằng 100% màn hình */
}

/* Background & Particles */
#anime-particles { position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: -1; pointer-events: none; }
.bg-grid { position: fixed; top: 0; left: 0; width: 100%; height: 100vh; z-index: -2; background: radial-gradient(circle at 50% 50%, #1a1a2e 0%, #050508 100%); }
.bg-grid::after { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%; background-image: linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px); background-size: 40px 40px; z-index: -1; }

/* Typography */
h1, h2, h3 { font-family: var(--font-heading); text-transform: uppercase; font-weight: 800; }
.highlight { color: var(--neon-cyan); text-shadow: 0 0 15px rgba(0, 243, 255, 0.5); }
.section-padding { padding: 100px 0; position: relative; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.text-center { text-align: center; }

.section-title { font-size: clamp(2rem, 5vw, 3.5rem); text-align: center; position: relative; font-weight: 900; background: linear-gradient(120deg, #fff 20%, var(--primary) 40%, var(--neon-cyan) 80%); background-size: 200% auto; -webkit-background-clip: text; -webkit-text-fill-color: transparent; animation: shine-flow 6s linear infinite; margin-bottom: 20px; }
.section-title::before { content: attr(data-shadow); position: absolute; top: -25px; left: 50%; transform: translateX(-50%); font-size: 4rem; color: rgba(255,255,255,0.02); z-index: -1; white-space: nowrap; font-weight: 900; }
.divider-center { width: 80px; height: 4px; background: var(--primary); margin: 0 auto 40px; position: relative; box-shadow: 0 0 15px var(--primary); }

/* Navbar (Glass) */
.glass-nav { position: fixed; top: 0; width: 100%; padding: 15px 40px; display: flex; justify-content: space-between; align-items: center; background: rgba(5, 5, 8, 0.8); backdrop-filter: blur(15px); border-bottom: 1px solid var(--glass-border); z-index: 1000; }
.logo { font-size: 1.6rem; font-weight: 800; font-family: var(--font-heading); font-style: italic; }
.nav-links { display: flex; gap: 35px; list-style: none; }
.nav-links a { color: var(--text-muted); text-decoration: none; font-weight: 600; font-size: 0.95rem; transition: 0.3s; position: relative; text-transform: uppercase; font-family: var(--font-heading); }
.nav-links a:hover { color: var(--neon-cyan); text-shadow: 0 0 10px var(--neon-cyan); }

/* Buttons */
.btn-nav { padding: 10px 25px; border: 1px solid var(--primary); color: #fff; text-decoration: none; font-weight: 700; font-family: var(--font-heading); position: relative; overflow: hidden; clip-path: polygon(15px 0, 100% 0, 100% calc(100% - 15px), calc(100% - 15px) 100%, 0 100%, 0 15px); background: rgba(124, 58, 237, 0.1); transition: 0.3s; }
.btn-nav:hover { background: var(--primary); box-shadow: 0 0 25px var(--primary-glow); }
.btn { padding: 16px 40px; font-weight: 700; text-decoration: none; display: inline-flex; align-items: center; gap: 12px; transition: 0.3s; font-size: 1rem; text-transform: uppercase; font-family: var(--font-heading); clip-path: polygon(20px 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%, 0 20px); }
.btn-primary { background: linear-gradient(90deg, var(--primary), #5b21b6); color: white; border-radius: 12px; box-shadow: 0 10px 20px rgba(124, 58, 237, 0.3), inset 0 1px 0 rgba(255,255,255,0.2); position: relative; overflow: hidden; z-index: 1; }
.btn-primary::after { content: ''; position: absolute; top: 0; left: -100%; width: 50%; height: 100%; background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent); transform: skewX(-25deg); z-index: -1; animation: sweep-shine 3s infinite; }
@keyframes sweep-shine { 0% { left: -100%; } 20% { left: 200%; } 100% { left: 200%; } }
.btn-primary:hover { transform: translateY(-3px) scale(1.02); box-shadow: 0 15px 30px rgba(124, 58, 237, 0.5), inset 0 1px 0 rgba(255,255,255,0.4); }
.btn-secondary { background: transparent; border: 1px solid rgba(255,255,255,0.3); color: white; margin-left: 20px; }
.btn-secondary:hover { border-color: var(--neon-cyan); color: var(--neon-cyan); background: rgba(0, 243, 255, 0.1); }
.pulse-anim { animation: pulse-glow 2s infinite; }
@keyframes pulse-glow { 0% { box-shadow: 0 0 0 0 rgba(124, 58, 237, 0.7); } 70% { box-shadow: 0 0 0 20px rgba(124, 58, 237, 0); } 100% { box-shadow: 0 0 0 0 rgba(124, 58, 237, 0); } }

/* Hero Section */
.hero { height: 100vh; display: flex; align-items: center; justify-content: center; text-align: center; }
.badge { background: rgba(0, 243, 255, 0.1); border: 1px solid var(--neon-cyan); color: var(--neon-cyan); padding: 8px 20px; border-radius: 4px; font-size: 0.8rem; font-weight: 700; letter-spacing: 2px; box-shadow: 0 0 15px rgba(0, 243, 255, 0.2); margin-bottom: 25px; display: inline-block; }
.anime-title { font-family: var(--font-heading); font-weight: 900; font-size: 3rem; text-transform: uppercase; line-height: 1.4; letter-spacing: 1.5px; background: linear-gradient(120deg, #fff 20%, var(--primary) 40%, var(--neon-cyan) 80%); background-size: 200% auto; -webkit-background-clip: text; -webkit-text-fill-color: transparent; animation: shine-flow 6s linear infinite; filter: drop-shadow(0 0 15px rgba(124, 58, 237, 0.3)); margin-bottom: 20px; }
@keyframes shine-flow { to { background-position: 200% center; } }
.hero-desc { font-size: 1.1rem; color: var(--text-muted); max-width: 700px; margin: 0 auto 40px; text-shadow: 0 2px 4px rgba(0,0,0,0.5); }

/* Glass Cards & Grids */
.modern-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 30px; }
.compact-grid { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.glass-card { background: linear-gradient(145deg, rgba(20, 20, 30, 0.6), rgba(5, 5, 8, 0.9)); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border: 1px solid rgba(255, 255, 255, 0.05); border-radius: 20px; padding: 35px 30px; position: relative; transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275); display: flex; flex-direction: column; box-shadow: 0 10px 30px rgba(0,0,0,0.3); }
.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 20px;
    padding: 2px;
    background: linear-gradient(135deg, var(--neon-cyan), var(--primary), transparent);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.4s ease;

    pointer-events: none;
}
.glass-card:hover { transform: translateY(-12px); box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6), 0 0 20px var(--primary-glow); background: linear-gradient(145deg, rgba(30, 30, 45, 0.8), rgba(10, 10, 15, 0.9)); }
.glass-card:hover::before { opacity: 1; }
.card-icon { font-size: 2.5rem; color: var(--neon-cyan); margin-bottom: 20px; filter: drop-shadow(0 0 10px var(--neon-cyan)); }
.glass-card h3 { font-size: 1.3rem; margin-bottom: 15px; color: #fff; border-left: 3px solid var(--primary); padding-left: 10px; }
.card-content { color: var(--text-muted); font-size: 0.95rem; flex-grow: 1; margin-bottom: 20px; }
.card-footer { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 15px; display: flex; justify-content: space-between; align-items: center; }
.price-tag { font-family: var(--font-heading); font-weight: 700; color: var(--neon-cyan); }

/* Feature Row (Community) */
.feature-row { display: flex; align-items: center; gap: 60px; margin-bottom: 80px; }
.feature-row.reverse { flex-direction: row-reverse; }
.feature-text { flex: 1; }
.feature-text h3 { font-size: 1.8rem; margin-bottom: 20px; color: #fff; }
.tech-item { background: rgba(0, 0, 0, 0.5); border: 1px solid rgba(255,255,255,0.1); padding: 15px; margin-bottom: 10px; display: flex; align-items: center; gap: 15px; transition: 0.3s; border-left: 3px solid var(--neon-orange); }
.tech-item:hover { transform: translateX(10px); background: rgba(255, 153, 0, 0.1); border-color: var(--neon-orange); }
.tech-icon { color: var(--neon-orange); }
.feature-visual { flex: 1; display: flex; justify-content: center; font-size: 8rem; animation: float 6s ease-in-out infinite; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-20px); } }
.glow-cyan { color: var(--neon-cyan); filter: drop-shadow(0 0 30px var(--neon-cyan)); }
.glow-orange { color: var(--neon-orange); filter: drop-shadow(0 0 30px var(--neon-orange)); }

/* Glass Panel & Commitments */
.glass-panel { background: rgba(15, 15, 20, 0.8); border: 1px solid var(--glass-border); border-top: 2px solid var(--neon-cyan); padding: 60px; backdrop-filter: blur(20px); margin-top: 50px; }
.highlight-title { color: var(--neon-cyan); letter-spacing: 2px; margin-bottom: 35px; border-bottom: 1px solid rgba(255,255,255,0.1); padding-bottom: 10px; }
.commit-card { display: flex; align-items: center; gap: 15px; padding: 20px; background: linear-gradient(90deg, rgba(255,255,255,0.02), transparent); border-left: 2px solid var(--primary); transition: 0.3s; }
.commit-card:hover { border-left-color: var(--neon-cyan); background: linear-gradient(90deg, rgba(0, 243, 255, 0.1), transparent); }
.commit-icon-box { font-size: 1.5rem; color: var(--neon-cyan); }

/* Footer */
footer { text-align: center; padding: 60px 0 30px; background: #020205; border-top: 1px solid #111; margin-top: 50px; }
/* Ép Footer luôn nằm ở dưới cùng */
#footer-placeholder {
    margin-top: auto;
    width: 100%;
}
.social-btn { width: 50px; height: 50px; border-radius: 50%; background: #111; color: #fff; display: inline-flex; align-items: center; justify-content: center; margin: 0 10px; font-size: 1.2rem; transition: 0.4s; border: 1px solid #333; text-decoration: none; }
.social-btn:hover { background: var(--primary); color: #fff; transform: translateY(-5px); border-color: var(--primary); box-shadow: 0 0 20px var(--primary-glow); }
.poetic-text { font-family: var(--font-body); font-size: 1.1rem; color: #888; margin: 30px 0; font-style: italic; }

/* Utilities & Animations */
.scroll-reveal { opacity: 0; transform: translateY(40px); transition: 0.8s ease-out; }
.scroll-reveal.active { opacity: 1; transform: translateY(0); }
.fade-in { animation: fadeIn 1s ease-out forwards; }
.fade-in-delay { animation: fadeIn 1s ease-out 0.5s forwards; opacity: 0; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

/* --- Nav Styles --- */
.nav-actions { display: flex; align-items: center; gap: 20px; }
.btn-login-special { border-color: var(--neon-cyan); background: rgba(0, 243, 255, 0.05); color: var(--neon-cyan); display: flex; align-items: center; gap: 8px; padding: 10px 20px; }
.btn-login-special:hover { background: rgba(0, 243, 255, 0.15); box-shadow: 0 0 20px rgba(0, 243, 255, 0.3); color: #fff; border-color: #fff; }
.nav-tournament { color: var(--neon-orange) !important; display: flex; align-items: center; gap: 5px; }
.nav-tournament:hover { text-shadow: 0 0 10px var(--neon-orange) !important; }
.nav-esports { color: #ff2a5f !important; display: flex; align-items: center; gap: 5px; }
.nav-esports:hover { text-shadow: 0 0 10px #ff2a5f !important; }

/* --- Esports & Tournaments Thêm --- */
.page-header { padding: 150px 0 50px; text-align: center; }
.status-badge { display: inline-block; padding: 5px 12px; border-radius: 20px; font-size: 0.8rem; font-weight: bold; margin-bottom: 15px; }
.status-open { background: rgba(0, 243, 255, 0.1); color: var(--neon-cyan); border: 1px solid var(--neon-cyan); }
.status-closed { background: rgba(255, 153, 0, 0.1); color: var(--neon-orange); border: 1px solid var(--neon-orange); }
.tournament-meta { display: flex; gap: 15px; color: var(--text-muted); font-size: 0.9rem; margin-bottom: 20px; justify-content: center;}
.tournament-meta i { color: var(--primary); }
.player-avatar { width: 80px; height: 80px; background: var(--glass-border); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 2.5rem; color: #ff2a5f; margin: 0 auto 20px auto; border: 2px solid #ff2a5f; box-shadow: 0 0 15px rgba(255, 42, 95, 0.3); }
.player-role { color: var(--neon-cyan); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 10px; }

/* User Profile Styles */
.profile-container { position: relative; z-index: 1001; }
.profile-trigger {
    display: flex; align-items: center; gap: 10px;
    background: rgba(255, 255, 255, 0.05);
    padding: 5px 15px; border-radius: 50px;
    border: 1px solid var(--glass-border); cursor: pointer;
    transition: 0.3s;
}
.profile-trigger:hover { background: rgba(255, 255, 255, 0.1); border-color: var(--neon-cyan); }
#user-avatar { width: 32px; height: 32px; border-radius: 50%; border: 2px solid var(--primary); }
.user-meta { display: flex; flex-direction: column; line-height: 1.2; text-align: left; }
#user-display-name { font-size: 0.9rem; font-weight: 700; color: #fff; }
#user-role-text { font-size: 0.7rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; }
.arrow-icon { font-size: 0.7rem; color: var(--text-muted); transition: 0.3s; }

/* Dropdown Box */
.profile-dropdown {
    position: absolute; top: calc(100% + 10px); right: 0;
    width: 200px; background: #0f0f14; border: 1px solid var(--glass-border);
    border-radius: 12px; padding: 8px 0; box-shadow: 0 10px 25px rgba(0,0,0,0.5);
    display: none; transform: translateY(10px); transition: 0.3s;
}
.profile-dropdown.active { display: block; transform: translateY(0); }
.profile-dropdown a {
    display: block; padding: 10px 20px; color: var(--text-main);
    text-decoration: none; font-size: 0.9rem; transition: 0.2s;
}
.profile-dropdown a:hover { background: rgba(124, 58, 237, 0.1); color: var(--neon-cyan); }
.logout-link:hover { color: #ff2a5f !important; background: rgba(255, 42, 95, 0.05) !important; }


/* Mobile Responsive */
.mobile-only { display: none; }
.desktop-only { display: inline-block; }
.menu-toggle { display: none; cursor: pointer; flex-direction: column; gap: 6px; }
.menu-toggle .bar { width: 25px; height: 3px; background-color: #fff; transition: 0.3s; border-radius: 2px; }

@media (max-width: 1024px) {
    .feature-row { flex-direction: column !important; gap: 30px; text-align: center; }
    .tech-item { justify-content: center; text-align: left; }
    .glass-panel { padding: 40px 20px; }
}

@media (max-width: 768px) {
    .menu-toggle { display: flex; z-index: 1001; }
    .desktop-only, .nav-actions { display: none; }
    .mobile-only { display: inline-block; margin-top: 20px; text-align: center; }
    .nav-links { position: fixed; top: 0; right: -100%; width: 70%; height: 100vh; background: rgba(5, 5, 8, 0.95); backdrop-filter: blur(20px); flex-direction: column; justify-content: center; align-items: center; transition: 0.4s; z-index: 1000; border-left: 1px solid rgba(255,255,255,0.1); }
    .nav-links.active { right: 0; }
    .nav-links li { margin: 20px 0; }
    .menu-toggle.active .bar:nth-child(2) { opacity: 0; }
    .menu-toggle.active .bar:nth-child(1) { transform: translateY(9px) rotate(45deg); }
    .menu-toggle.active .bar:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }
    .anime-title { font-size: 2rem; }
    .hero-desc { font-size: 1rem; padding: 0 15px; }
    .cta-group { display: flex; flex-direction: column; gap: 15px; padding: 0 20px; }
    .btn-secondary { margin-left: 0; }
}

/* =========================================
   GLOBAL TOAST UI - STAGE 13.5
========================================= */

.admin-toast-root {
    position: fixed;
    top: 24px;
    right: 24px;
    z-index: 99999;
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: min(380px, calc(100vw - 32px));
    pointer-events: none;
}

.admin-toast {
    pointer-events: auto;
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: start;
    gap: 12px;
    padding: 14px 15px;
    border-radius: 16px;
    background: rgba(8, 8, 16, 0.94);
    border: 1px solid rgba(255,255,255,0.12);
    box-shadow: 0 18px 50px rgba(0,0,0,0.45);
    backdrop-filter: blur(14px);
    transition: 0.18s ease;
    animation: adminToastIn 0.22s ease-out;
}

.admin-toast.success {
    border-color: rgba(16,185,129,0.32);
    background: linear-gradient(135deg, rgba(16,185,129,0.14), rgba(8,8,16,0.94));
}

.admin-toast.error {
    border-color: rgba(255,42,95,0.35);
    background: linear-gradient(135deg, rgba(255,42,95,0.14), rgba(8,8,16,0.94));
}

.admin-toast.warning {
    border-color: rgba(255,153,0,0.35);
    background: linear-gradient(135deg, rgba(255,153,0,0.14), rgba(8,8,16,0.94));
}

.admin-toast.info {
    border-color: rgba(0,243,255,0.28);
    background: linear-gradient(135deg, rgba(0,243,255,0.12), rgba(8,8,16,0.94));
}

.admin-toast-icon {
    width: 34px;
    height: 34px;
    display: grid;
    place-items: center;
    border-radius: 12px;
    background: rgba(255,255,255,0.06);
}

.admin-toast.success .admin-toast-icon {
    color: #10b981;
}

.admin-toast.error .admin-toast-icon {
    color: #ff2a5f;
}

.admin-toast.warning .admin-toast-icon {
    color: var(--neon-orange);
}

.admin-toast.info .admin-toast-icon {
    color: var(--neon-cyan);
}

.admin-toast-title {
    font-family: var(--font-heading);
    font-weight: 900;
    color: #fff;
    margin-bottom: 4px;
    text-transform: uppercase;
    font-size: 0.86rem;
}

.admin-toast-message {
    color: var(--text-muted);
    line-height: 1.45;
    font-size: 0.9rem;
    white-space: pre-line;
}

.admin-toast-close {
    border: 0;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1rem;
    padding: 2px;
}

.admin-toast-close:hover {
    color: #fff;
}

.btn.is-loading {
    pointer-events: none;
    opacity: 0.72;
    cursor: wait !important;
}

@keyframes adminToastIn {
    from {
        opacity: 0;
        transform: translateX(18px) scale(0.98);
    }

    to {
        opacity: 1;
        transform: translateX(0) scale(1);
    }
}

@media (max-width: 650px) {
    .admin-toast-root {
        top: 14px;
        right: 14px;
        left: 14px;
        width: auto;
    }
}