@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
    --bg-main: #060608; --bg-card: #121218; --bg-hover: #1c1c24;
    --primary-color: #8b5cf6; --primary-glow: rgba(139, 92, 246, 0.4);
    --secondary-color: #ef4444; --secondary-glow: rgba(239, 68, 68, 0.4);
    --text-main: #ffffff; --text-muted: #9ca3af;
    --color-hot: #ef4444; --color-free: #10b981; --color-blue: #06b6d4;
    --border-color: rgba(255, 255, 255, 0.08);
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Outfit', sans-serif; }
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-main); }
::-webkit-scrollbar-thumb { background: #8b5cf6; border-radius: 10px; }

body { 
    background-color: var(--bg-main); 
    color: var(--text-main); 
    display: flex; 
    height: 100vh; 
    overflow: hidden; 
    -webkit-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

input, textarea {
    -webkit-user-select: auto;
    -ms-user-select: auto;
    user-select: auto;
}

img {
    -webkit-user-drag: none;
    -khtml-user-drag: none;
    -moz-user-drag: none;
    -o-user-drag: none;
    user-drag: none;
}

.container { display: flex; width: 100vw; height: 100vh; }

/* ANIMATION NỀN THỞ */
.main-content { 
    flex-grow: 1; 
    background: radial-gradient(circle at 50% 0%, rgba(139,92,246,0.15), transparent 60%), var(--bg-main); 
    display: flex; flex-direction: column; overflow: hidden; 
    animation: bgBreathe 8s ease-in-out infinite alternate;
}
@keyframes bgBreathe { 0% { background-size: 100% 100%; } 100% { background-size: 120% 120%; } }

/* SIDEBAR & MENU */
.sidebar { width: 260px; background-color: rgba(13, 13, 18, 0.95); backdrop-filter: blur(10px); border-right: 1px solid var(--border-color); z-index: 10; display: flex; flex-direction: column;}
.logo-area { display: flex; align-items: center; gap: 12px; padding: 25px 20px; cursor: pointer; transition: 0.3s;}
.logo-area:hover { transform: scale(1.05); }
.logo-icon { width: 38px; animation: float 3s infinite ease-in-out, pulseGlowLogo 4s infinite alternate; }
@keyframes pulseGlowLogo { 0% { filter: drop-shadow(0 0 10px rgba(139,92,246,0.6)); } 50% { filter: drop-shadow(0 0 20px rgba(239,68,68,0.6)); } 100% { filter: drop-shadow(0 0 10px rgba(139,92,246,0.6)); } }
.logo-area .logo-text { font-weight: 800; font-size: 1.3rem; line-height: 1.1; color: #fff; text-shadow: 0 0 10px rgba(255,255,255,0.2); letter-spacing: 0.5px; white-space: nowrap;}
.logo-area .logo-ghost { background: linear-gradient(270deg, #ffffff, #818cf8, #ffffff); background-size: 200% auto; -webkit-background-clip: text; -webkit-text-fill-color: transparent; animation: shineGhost 3s linear infinite; display: inline-block;}
@keyframes shineGhost { to { background-position: 200% center; } }
.logo-area .logo-highlight { background: linear-gradient(270deg, #a855f7, #ec4899, #ef4444, #a855f7); background-size: 300% 300%; -webkit-background-clip: text; -webkit-text-fill-color: transparent; animation: gradientTextFlow 4s ease infinite; font-weight: 900;}
.sidebar-nav { flex-grow: 1; overflow-y: auto; padding: 10px 15px; }
.nav-title { color: var(--text-muted); font-size: 0.75rem; font-weight: 700; margin-top: 25px; margin-bottom: 8px; padding-left: 10px; letter-spacing: 1px;}
.sidebar-nav ul { list-style: none; }
.sidebar-nav a { color: var(--text-muted); text-decoration: none; display: flex; align-items: center; padding: 12px 15px; border-radius: 10px; transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); font-size: 0.95rem; font-weight: 500; border: 1px solid transparent;}
.sidebar-nav a:hover { color: var(--text-main); background: var(--bg-hover); transform: translateX(6px); border-color: rgba(255,255,255,0.05);}
.sidebar-nav li.active a { background: rgba(139, 92, 246, 0.1); color: #fff; box-shadow: inset 4px 0 0 var(--primary-color), 0 0 15px rgba(139,92,246,0.1); border-color: rgba(139,92,246,0.2);}
.sidebar-nav li.active a i { color: var(--primary-color); filter: drop-shadow(0 0 8px var(--primary-glow));}
.sidebar-nav i { margin-right: 12px; width: 20px; text-align: center; font-size: 1rem;}
.badge { margin-left: auto; border-radius: 6px; padding: 4px 8px; font-size: 0.7rem; font-weight: 800; text-transform: uppercase;}
.badge-free { background: var(--color-free); color: #fff; }
.badge-new { background: var(--primary-color); color: #fff; }

/* TOP HEADER & SEARCH */
.top-header { height: 75px; background: rgba(13, 13, 18, 0.7); backdrop-filter: blur(15px); border-bottom: 1px solid var(--border-color); display: flex; align-items: center; justify-content: space-between; padding: 0 30px; z-index: 5; box-shadow: 0 4px 30px rgba(0,0,0,0.5);}
.search-bar { background: rgba(255,255,255,0.03); border: 1px solid var(--border-color); border-radius: 10px; display: flex; align-items: center; padding: 0 15px; width: 350px; transition: 0.4s; }
.search-bar:focus-within { border-color: var(--primary-color); box-shadow: 0 0 20px var(--primary-glow); width: 400px;}
.search-bar input { width: 100%; background: transparent; border: none; padding: 12px; color: white; outline: none; font-size: 0.95rem;}
.search-bar i { color: var(--text-muted); }
.header-btn { background: rgba(255,255,255,0.03); border: 1px solid var(--border-color); padding: 10px 20px; border-radius: 10px; color: white; cursor: pointer; font-weight: 600; font-size: 0.95rem; transition: 0.3s; }
.header-btn:hover { background: rgba(255,255,255,0.1); transform: translateY(-2px); }
.btn-register { background: linear-gradient(135deg, var(--primary-color), #6d28d9); border: none; box-shadow: 0 5px 15px var(--primary-glow); }
.balance-btn { color: var(--primary-color); font-weight: 800; background: rgba(139,92,246,0.1); border-color: rgba(139,92,246,0.3);}

/* AVATAR DROPDOWN */
.user-profile-dropdown { position: relative; }
.user-info { display: flex; align-items: center; gap: 12px; cursor: pointer; padding: 6px 16px 6px 6px; border-radius: 30px; background: rgba(255,255,255,0.03); border: 1px solid var(--border-color); transition: 0.3s; }
.user-info:hover { border-color: var(--primary-color); box-shadow: 0 0 15px var(--primary-glow);}
.custom-avatar { width: 36px; height: 36px; border-radius: 50%; object-fit: contain; background: #111118; border: 1px solid var(--primary-color); padding: 4px; transition: 0.4s; }
.user-info:hover .custom-avatar { transform: scale(1.15) rotate(5deg); border-color: var(--secondary-color); }
.username { font-weight: 700; font-size: 0.95rem; }
.dropdown-menu { position: absolute; top: 120%; right: 0; background: rgba(17,17,24,0.95); backdrop-filter: blur(15px); border: 1px solid var(--primary-color); border-radius: 12px; width: 230px; padding: 10px 0; list-style: none; opacity: 0; visibility: hidden; transform: translateY(15px) scale(0.95); transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275); z-index: 100; box-shadow: 0 15px 40px rgba(0,0,0,0.6);}
.dropdown-menu.show { opacity: 1; visibility: visible; transform: translateY(0) scale(1); }
.dropdown-menu li a { display: flex; align-items: center; gap: 12px; padding: 12px 20px; color: var(--text-muted); text-decoration: none; font-size: 0.95rem; font-weight: 500; transition: 0.3s; }
.dropdown-menu li a:hover { background: rgba(255,255,255,0.05); color: white; padding-left: 25px; }
.dropdown-menu hr { border-top: 1px solid var(--border-color); margin: 8px 0; }
.text-danger { color: #ef4444 !important; }

/* STAGGER LOADING LAYOUT */
.content-wrapper { padding: 30px 40px; overflow-y: auto; flex-grow: 1; scroll-behavior: smooth;}
.stagger-1 { animation: slideUpFade 0.5s 0.1s forwards opacity-0; }
.stagger-2 { animation: slideUpFade 0.5s 0.2s forwards opacity-0; }
.stagger-3 { animation: slideUpFade 0.5s 0.3s forwards opacity-0; }
.stagger-4 { animation: slideUpFade 0.5s 0.4s forwards opacity-0; }
.stagger-5 { animation: slideUpFade 0.5s 0.5s forwards opacity-0; }
.stagger-6 { animation: slideUpFade 0.5s 0.6s forwards opacity-0; }
.opacity-0 { opacity: 0; transform: translateY(30px); }
@keyframes slideUpFade { to { opacity: 1; transform: translateY(0); } }

/* HOVER NEON GLOW & SHINE EFFECT */
.hover-glow { transition: 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275); border: 1px solid var(--border-color); position: relative; overflow: hidden;}
.hover-glow::before {
    content: ''; position: absolute; top: 0; left: -150%; width: 50%; height: 100%;
    background: linear-gradient(to right, transparent, rgba(255,255,255,0.08), transparent);
    transform: skewX(-25deg); transition: 0.7s; z-index: 1; pointer-events: none;
}
.hover-glow:hover::before { left: 200%; }
.hover-glow:hover { border-color: var(--primary-color); box-shadow: 0 10px 40px rgba(0,0,0,0.5), 0 0 20px rgba(139,92,246,0.15); transform: translateY(-5px);}

/* 1. THANH CHẠY CHỮ VÔ HẠN */
.marquee-container { display: flex; align-items: center; background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 10px; margin-bottom: 25px; overflow: hidden; height: 45px; }
.marquee-badge { background: linear-gradient(135deg, rgba(139, 92, 246, 0.2), rgba(239, 68, 68, 0.2)); color: #fff; padding: 0 20px; height: 100%; display: flex; align-items: center; font-weight: 800; font-size: 0.85rem; white-space: nowrap; border-right: 1px solid var(--border-color); z-index: 2;}
.marquee-text-wrap { flex-grow: 1; overflow: hidden; position: relative; height: 100%; display: flex; align-items: center; mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent); -webkit-mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);}
.marquee-text { display: flex; width: max-content; white-space: nowrap; font-size: 0.95rem; color: #d1d5db; font-weight: 600; animation: scrollTextSeamless 25s linear infinite; }
.marquee-text span { padding-right: 50px; }
@keyframes scrollTextSeamless { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* 2. ADMIN CARD & THỐNG KÊ */
.admin-post-card { display: flex; gap: 20px; background: linear-gradient(145deg, var(--bg-card), rgba(139,92,246,0.05)); border-radius: 12px; padding: 30px; margin-bottom: 25px; border-left: 4px solid var(--primary-color);}
.admin-avatar { width: 55px; height: 55px; border-radius: 50%; border: 2px solid var(--primary-color); padding: 2px;}
.post-content h4 { font-size: 1.2rem; font-weight: 800; margin-bottom: 12px;}
.post-content ul { list-style: none; color: #d1d5db; font-size: 0.95rem; line-height: 1.7; }
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 25px; }
.stat-card { background: var(--bg-card); border-radius: 12px; padding: 25px;}
.stat-card h3 { font-size: 1.6rem; font-weight: 800; margin-bottom: 5px;}
.stat-card p { color: var(--text-muted); font-size: 0.9rem; font-weight: 600; text-transform: uppercase;}
.gradient-text { 
    background: linear-gradient(270deg, #a855f7, #ec4899, #3b82f6, #10b981, #a855f7); 
    background-size: 400% 400%;
    -webkit-background-clip: text; 
    -webkit-text-fill-color: transparent; 
    animation: gradientTextFlow 8s ease infinite;
}
@keyframes gradientTextFlow { 0% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } 100% { background-position: 0% 50%; } }

/* 4. BANNER GRID LAYOUT */
.banner-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 25px; }
.banner-card { height: 160px; border-radius: 12px; overflow: hidden; cursor: pointer; transition: 0.4s; border: 1px solid var(--border-color); position: relative;}
.banner-card:hover { transform: translateY(-5px); border-color: rgba(255,255,255,0.3); box-shadow: 0 15px 35px rgba(139, 92, 246, 0.3);}
.banner-img { width: 100%; height: 100%; object-fit: cover; transition: 0.5s; }
.banner-card:hover .banner-img { transform: scale(1.05); filter: brightness(0.6); }
.banner-overlay { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); background: rgba(0,0,0,0.6); padding: 10px 20px; border-radius: 30px; border: 1px solid rgba(255,255,255,0.3); color: #fff; font-weight: 800; font-size: 0.9rem; opacity: 0; transition: 0.4s; backdrop-filter: blur(5px); white-space: nowrap;}
.banner-card:hover .banner-overlay { opacity: 1; }

/* 5. CÔNG CỤ & THÔNG BÁO */
.info-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 20px;}
.info-card { background: var(--bg-card); border-radius: 12px; padding: 30px;}
.card-title { display: flex; align-items: center; gap: 12px; margin-bottom: 15px; font-size: 1.2rem; font-weight: 800;}
.card-title i { color: var(--primary-color); font-size: 1.5rem;}
.notification-list li, .tool-list li { display: flex; align-items: center; padding: 15px; background: rgba(255,255,255,0.02); border-radius: 10px; margin-bottom: 10px; border: 1px solid var(--border-color); font-size: 0.95rem; font-weight: 500;}
.notification-list li:hover, .tool-list li:hover { border-color: var(--primary-color); transform: translateX(8px); background: rgba(139,92,246,0.03);}
.colored-line { width: 4px; height: 20px; border-radius: 4px; margin-right: 15px; }
.line-purple { background: var(--primary-color); } .line-cyan { background: var(--color-blue); } .line-red { background: var(--color-hot); } .line-green { background: var(--color-free); }
.notification-list a { color: #fff; text-decoration: none; margin-left: auto; font-weight: 600;}
.tool-list i { color: var(--primary-color); margin-right: 10px;}
.btn-discover { width: 100%; padding: 18px; border-radius: 12px; border: none; background: linear-gradient(270deg, var(--primary-color), #ec4899, var(--primary-color)); background-size: 200% auto; color: white; font-weight: 800; cursor: pointer; margin-top: 20px; font-size: 1rem; box-shadow: 0 5px 20px var(--primary-glow); transition: 0.4s; font-family: inherit;}
.btn-discover:hover { transform: translateY(-3px); box-shadow: 0 10px 30px rgba(139,92,246,0.6); background-position: right center; }

.feedback-title { margin-top: 40px; font-size: 1.25rem; font-weight: 800; display: flex; align-items: center; gap: 12px;}
.floating-chat-btn { position: fixed; bottom: 40px; right: 40px; background: linear-gradient(135deg, #a855f7, #6366f1); color: white; border: none; border-radius: 30px; padding: 18px 35px; font-weight: 800; cursor: pointer; z-index: 100; font-size: 1.05rem; animation: pulseGlow 2s infinite;}

/* 🌟 PHẦN NÂNG CẤP MỚI: TABS & QR SEPAY FLEX BOX */
.modal-tabs { display: flex; background: rgba(0,0,0,0.4); border-radius: 12px; padding: 5px; margin-bottom: 20px; border: 1px solid var(--border-color); }
.tab-btn { flex: 1; padding: 12px; border: none; background: transparent; color: var(--text-muted); font-weight: 700; border-radius: 8px; cursor: pointer; transition: 0.3s; font-size: 0.95rem; display: flex; align-items: center; justify-content: center; gap: 8px; font-family: inherit;}
.tab-btn.active { background: var(--primary-color); color: #fff; box-shadow: 0 4px 15px var(--primary-glow); }
.tab-content { opacity: 0; transform: translateY(10px); transition: 0.4s; display: none; }
.tab-content.active { opacity: 1; transform: translateY(0); display: block; }

/* --- BỐ CỤC SEPAY QR ĐẸP MẮT --- */
.sepay-flex-box { display: flex; gap: 30px; align-items: center; margin-top: 20px; margin-bottom: 20px; }

.qr-code-zone { 
    background: #ffffff; padding: 10px; border-radius: 16px; 
    width: 180px; height: 180px; min-width: 180px; display: flex; 
    align-items: center; justify-content: center; position: relative;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3), 0 0 20px rgba(139,92,246,0.3);
    overflow: hidden; /* Khóa không cho tia sáng tràn ra ngoài viền bo góc */
}

/* Ép chế độ hòa trộn để bỏ nền trắng của ảnh QR, giúp tia sáng đè lên đẹp hơn */
.qr-code-zone img { width: 100%; height: 100%; object-fit: contain; position: relative; z-index: 2; mix-blend-mode: multiply;}

/* Tia sáng Neon quét dọc mã QR */
.qr-code-zone::after {
    content: ''; position: absolute; top: -50%; left: 0; width: 100%; height: 15px;
    background: linear-gradient(to bottom, transparent, rgba(139, 92, 246, 0.9), transparent);
    animation: qrScan 2.5s linear infinite;
    z-index: 3;
    box-shadow: 0 0 15px rgba(139, 92, 246, 0.6);
}
@keyframes qrScan { 0% { top: -10%; } 50% { top: 100%; } 100% { top: -10%; } }

.bank-details { flex-grow: 1; display: flex; flex-direction: column; gap: 10px; }
.bank-details p { font-size: 0.95rem; margin: 0; color: var(--text-muted); }
.bank-details strong { color: #fff; font-weight: 700; }
.account-number { font-size: 1.15rem !important; color: var(--primary-color) !important; font-weight: 800; display: flex; align-items: center; gap: 8px;}
.bank-details i { color: var(--primary-color); cursor: pointer; transition: 0.2s; font-size: 1.2rem;}
.bank-details i:hover { transform: scale(1.2); filter: brightness(1.3); }
.text-warning { color: #fbbf24 !important; font-size: 1.05rem;}
.bank-note { font-size: 0.85rem; color: #fbbf24; text-align: center; font-style: italic; background: rgba(251, 191, 36, 0.08); padding: 12px; border-radius: 10px; border: 1px solid rgba(251, 191, 36, 0.15); line-height: 1.5;}
/* MODALS GLASSMORPHISM */
.modal-overlay { position: fixed; top: 0; left: 0; width: 100vw; height: 100vh; background: rgba(0,0,0,0.7); backdrop-filter: blur(10px); display: flex; align-items: center; justify-content: center; z-index: 1000; opacity: 0; visibility: hidden; transition: 0.3s;}
.modal-overlay.show { opacity: 1; visibility: visible; }
.glass-panel { background: rgba(16, 16, 22, 0.85); backdrop-filter: blur(20px); border: 1px solid rgba(139,92,246,0.2); box-shadow: 0 25px 50px rgba(0,0,0,0.7); width: 440px; padding: 40px; border-radius: 24px; transform: scale(0.9); transition: 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275); }
.modal-overlay.show .glass-panel { transform: scale(1); }
.close-modal { position: absolute; top: 20px; right: 25px; background: transparent; border: none; color: var(--text-muted); font-size: 2rem; cursor: pointer; transition: 0.3s;}
.close-modal:hover { color: var(--color-hot); transform: rotate(90deg);}
.modal-logo-wrap { text-align: center; margin-bottom: 20px; }
.modal-logo { width: 55px; filter: drop-shadow(0 0 12px var(--secondary-glow)); }
.input-group { background: rgba(0,0,0,0.3); border: 1px solid var(--border-color); border-radius: 12px; padding: 15px; margin-bottom: 18px; display: flex; align-items: center; gap: 15px; transition: 0.3s;}
.input-group:focus-within { border-color: var(--primary-color); box-shadow: 0 0 15px var(--primary-glow); background: rgba(139,92,246,0.03);}
.input-group input, .custom-select { font-size: 1rem; width: 100%; background: transparent; border: none; color: #fff; outline: none; font-family: inherit;}
.custom-select option { background: #121218; color: #fff; }
.btn-auth { width: 100%; padding: 16px; border-radius: 12px; border: none; background: linear-gradient(270deg, var(--primary-color), #ec4899, var(--primary-color)); background-size: 200% auto; color: white; font-weight: 800; cursor: pointer; font-size: 1rem; transition: 0.4s; font-family: inherit;}
.btn-auth:hover { transform: translateY(-3px); box-shadow: 0 10px 30px rgba(139,92,246,0.6); background-position: right center; }
.switch-form { text-align: center; margin-top: 20px; font-size: 0.95rem; color: var(--text-muted); }
.switch-form a { color: var(--primary-color); font-weight: 700; text-decoration: none;}

/* TOAST */
#toast-container { position: fixed; top: 90px; right: 30px; z-index: 9999; display: flex; flex-direction: column; gap: 15px; }
.toast-msg { background: rgba(16,16,22,0.95); backdrop-filter: blur(15px); border: 1px solid var(--border-color); border-left: 5px solid var(--primary-color); color: white; padding: 18px 25px; border-radius: 12px; box-shadow: 0 10px 30px rgba(0,0,0,0.5); display: flex; align-items: center; gap: 15px; font-weight: 600; font-size: 1rem; transform: translateX(120%); transition: 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275); }
.toast-msg.show { transform: translateX(0); }
.toast-msg i { color: var(--primary-color); font-size: 1.4rem;}

@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-5px); } }
@keyframes pulseGlow { 0% { box-shadow: 0 0 0 0 rgba(139,92,246,0.7); } 70% { box-shadow: 0 0 0 20px rgba(139,92,246,0); } 100% { box-shadow: 0 0 0 0 rgba(139,92,246,0); } }
@keyframes pulseRed { 0% { box-shadow: 0 0 0 0 rgba(239,68,68,0.7); } 70% { box-shadow: 0 0 0 10px rgba(239,68,68,0); } 100% { box-shadow: 0 0 0 0 rgba(239,68,68,0); } }
/* --- HÀNG NÚT CHỌN MỆNH GIÁ NHANH --- */
.quick-amounts { 
    display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 20px;
}
.amount-btn { 
    flex: 1; min-width: 50px; padding: 8px 5px; 
    background: rgba(255,255,255,0.02); border: 1px solid var(--border-color); 
    border-radius: 8px; color: var(--text-muted); font-weight: 600; 
    font-size: 0.85rem; cursor: pointer; transition: 0.2s; font-family: inherit;
}
.amount-btn:hover { 
    background: rgba(139, 92, 246, 0.1); 
    border-color: var(--primary-color); 
    color: #fff;
}
.amount-btn.active { 
    background: var(--primary-color); 
    color: #fff; 
    border-color: var(--primary-color); 
    box-shadow: 0 0 10px var(--primary-glow);
}
/* --- THIẾT KẾ Ô MÃ KEY SẢN PHẨM --- */
.key-box {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(139, 92, 246, 0.1);
    border: 1px dashed rgba(139, 92, 246, 0.4);
    padding: 6px 12px;
    border-radius: 6px;
    color: #a78bfa;
    font-family: monospace;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: 0.3s;
}

.key-box:hover {
    background: rgba(139, 92, 246, 0.2);
    border-color: var(--primary-color);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(139, 92, 246, 0.2);
}

/* Key đã hết hạn (Màu đỏ/xám) */
.key-box.key-expired {
    background: rgba(239, 68, 68, 0.05);
    border-color: rgba(239, 68, 68, 0.2);
    color: var(--text-muted);
    cursor: not-allowed;
    text-decoration: line-through;
}
.key-box.key-expired:hover {
    transform: none;
    box-shadow: none;
}
/* ==========================================
   BẢNG ĐƠN HÀNG NÂNG CẤP (RỘNG RÃI - KHÔNG DÍNH DÒNG)
========================================== */
.table-responsive { 
    width: 100%; 
    overflow-x: auto; 
    border-radius: 12px; 
}

.custom-table { 
    width: 100%; 
    border-collapse: collapse; /* Gộp viền để không bị hở */
    text-align: left; 
    white-space: nowrap; 
}

/* Phần Tiêu đề các cột (Header) */
.custom-table th { 
    background: rgba(139, 92, 246, 0.08); /* Nền tím nhạt sang trọng */
    color: #fff; 
    font-size: 0.9rem; 
    text-transform: uppercase; 
    letter-spacing: 1px; 
    padding: 20px 15px; /* Kéo giãn khoảng cách trên dưới */
    border-bottom: 2px solid rgba(139, 92, 246, 0.3); /* Đường viền dưới đậm hơn */
    font-weight: 800;
}

/* Phần Nội dung các hàng (Rows) */
.custom-table td { 
    padding: 22px 15px; /* TĂNG PADDING LÊN 22px ĐỂ CÁC DÒNG CÁCH XA NHAU */
    border-bottom: 1px solid rgba(255, 255, 255, 0.06); /* Đường kẻ phân cách giữa mỗi đơn hàng */
    vertical-align: middle; 
    transition: 0.3s;
    font-size: 0.95rem;
}

/* Hiệu ứng khi di chuột vào từng dòng đơn hàng */
.custom-table tr {
    transition: 0.3s;
}
.custom-table tr:hover td { 
    background: rgba(255, 255, 255, 0.03); /* Sáng lên một chút khi hover */
}

/* Bỏ đường kẻ ở dòng cuối cùng cho đẹp */
.custom-table tr:last-child td { 
    border-bottom: none; 
}

/* Tinh chỉnh lại text trong bảng */
.order-id { 
    font-family: monospace; 
    color: var(--color-blue); 
    background: rgba(6, 182, 212, 0.1); 
    padding: 6px 10px; 
    border-radius: 6px; 
    font-weight: 800; 
    font-size: 0.95rem;
}
.custom-table strong { color: #fff; font-size: 1rem;}
.text-primary { color: var(--primary-color) !important; font-weight: 800; }
.text-muted { color: var(--text-muted) !important; font-size: 0.9rem; }
/* ==========================================
   GIAO DIỆN CỬA HÀNG SẢN PHẨM & TABS
========================================== */
.product-tabs { 
    display: flex; gap: 10px; margin-bottom: 20px; 
    border-bottom: 2px solid var(--border-color); padding-bottom: 10px;
}
.prod-tab { 
    background: transparent; border: none; color: var(--text-muted); 
    font-size: 1rem; font-weight: 700; cursor: pointer; 
    padding: 10px 20px; border-radius: 8px; transition: 0.3s;
}
.prod-tab:hover { color: #fff; background: rgba(255,255,255,0.05); }
.prod-tab.active { background: var(--primary-color); color: #fff; box-shadow: 0 4px 15px var(--primary-glow); }

.prod-content { display: none; animation: slideUpFade 0.3s ease-out; }
.prod-content.active { display: block; }

.prod-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.prod-card { 
    background: var(--bg-card); border: 1px solid var(--border-color); 
    border-radius: 12px; padding: 20px; position: relative; overflow: hidden;
    display: flex; flex-direction: column; justify-content: space-between;
}
.prod-badge { 
    position: absolute; top: 15px; right: -25px; background: var(--color-hot); 
    color: #fff; font-size: 0.7rem; font-weight: 800; padding: 4px 30px; 
    transform: rotate(45deg); box-shadow: 0 2px 10px rgba(239, 68, 68, 0.5);
}
.prod-img { width: 50px; height: 50px; object-fit: contain; margin-bottom: 15px; filter: drop-shadow(0 0 10px var(--primary-glow)); }
.prod-card h4 { font-size: 1.15rem; font-weight: 800; margin-bottom: 10px; color: #fff;}
.prod-card p { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 20px; line-height: 1.5; flex-grow: 1;}

.prod-bottom { display: flex; justify-content: space-between; align-items: center; border-top: 1px solid var(--border-color); padding-top: 15px;}
.prod-price { font-size: 1.2rem; font-weight: 800; color: var(--primary-color); }
.btn-buy { 
    background: linear-gradient(135deg, var(--primary-color), #6d28d9); 
    color: #fff; border: none; padding: 8px 18px; border-radius: 8px; 
    font-weight: 700; cursor: pointer; transition: 0.3s; font-family: inherit; font-size: 0.9rem;
}
.btn-buy:hover { transform: translateY(-2px); box-shadow: 0 5px 15px var(--primary-glow); }

/* BADGE LỊCH SỬ GIAO DỊCH */
.status-buy { background: rgba(239, 68, 68, 0.1); color: #ef4444; border: 1px solid rgba(239, 68, 68, 0.3); }
.text-danger { color: #ef4444 !important; font-weight: 700; }

/* ==========================================
   GIAO DIỆN CHAT BOT AI
========================================== */
.chat-box-container {
    position: fixed; bottom: 80px; right: 20px; width: 350px; height: 480px;
    background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 16px;
    display: flex; flex-direction: column; box-shadow: 0 10px 40px rgba(0,0,0,0.6); z-index: 1000;
    overflow: hidden; animation: slideUpFade 0.3s ease-out forwards;
}

.chat-header {
    background: linear-gradient(135deg, var(--primary-color), #6d28d9); padding: 15px;
    display: flex; justify-content: space-between; align-items: center; color: #fff;
}
.chat-header-info { display: flex; align-items: center; gap: 12px; }
.chat-header-info img { width: 35px; height: 35px; border-radius: 50%; border: 2px solid #fff; }
.chat-header-info h4 { margin: 0; font-size: 1.05rem; font-weight: 800; }
.chat-header-info p { margin: 0; font-size: 0.8rem; opacity: 0.9; }

.close-chat { background: none; border: none; color: #fff; font-size: 1.5rem; cursor: pointer; transition: 0.2s;}
.close-chat:hover { transform: scale(1.2); }

.chat-messages { 
    flex-grow: 1; padding: 15px; overflow-y: auto; 
    display: flex; flex-direction: column; gap: 12px; 
}
.message { display: flex; max-width: 85%; }
.bot-msg { align-self: flex-start; }
.user-msg { align-self: flex-end; }
.msg-bubble { padding: 10px 14px; border-radius: 12px; font-size: 0.9rem; line-height: 1.5; }

.bot-msg .msg-bubble { 
    background: rgba(139, 92, 246, 0.1); border: 1px solid rgba(139, 92, 246, 0.3); 
    color: #fff; border-bottom-left-radius: 2px; 
}
.user-msg .msg-bubble { 
    background: var(--primary-color); color: #fff; border-bottom-right-radius: 2px; 
}

.chat-input-area { 
    padding: 15px; border-top: 1px solid var(--border-color); 
    display: flex; gap: 10px; background: rgba(0,0,0,0.2); 
}
.chat-input-area input { 
    flex-grow: 1; background: rgba(255,255,255,0.05); border: 1px solid var(--border-color); 
    color: #fff; outline: none; font-family: inherit; padding: 10px 15px; border-radius: 20px;
}
.chat-input-area button { 
    background: var(--primary-color); color: #fff; border: none; 
    width: 40px; height: 40px; border-radius: 50%; cursor: pointer; transition: 0.2s; 
}
.chat-input-area button:hover { transform: scale(1.1); box-shadow: 0 0 10px var(--primary-glow); }
/* ==========================================
   GIAO DIỆN NÚT ĐỔI NGÔN NGỮ
========================================== */
.lang-switcher {
    position: relative;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    padding: 8px 15px;
    border-radius: 12px;
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    transition: 0.3s;
    margin-right: 15px; /* Tạo khoảng cách với nút Đăng nhập / Số dư */
}
.lang-switcher:hover {
    background: rgba(139, 92, 246, 0.15);
    border-color: var(--primary-color);
    box-shadow: 0 0 15px rgba(139, 92, 246, 0.3);
}
.lang-menu {
    position: absolute;
    top: 120%;
    right: 0;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    list-style: none;
    padding: 8px 0;
    min-width: 140px;
    display: none;
    box-shadow: 0 10px 30px rgba(0,0,0,0.6);
    z-index: 1000;
}
.lang-menu.show {
    display: block;
    animation: slideUpFade 0.2s ease-out;
}
.lang-menu li {
    padding: 10px 15px;
    cursor: pointer;
    transition: 0.2s;
    font-size: 0.9rem;
}
.lang-menu li:hover {
    background: rgba(139, 92, 246, 0.1);
    color: var(--primary-color);
}
/* ==========================================
   FIX LỖI NẰM NGANG KHU VỰC GÓC PHẢI
========================================== */
.header-actions {
    display: flex !important; 
    flex-direction: row !important; /* Bắt buộc xếp hàng ngang */
    align-items: center !important; /* Canh giữa theo chiều dọc */
    justify-content: flex-end !important;
    gap: 12px !important; /* Khoảng cách giữa nút VI và nút 0đ (Bạn có thể tăng giảm số này) */
}

/* ==========================================
   TÙY CHỈNH NÚT NGÔN NGỮ (LANG SWITCHER)
========================================== */
.lang-switcher {
    position: relative;
    
    /* TÙY CHỈNH GIAO DIỆN Ở ĐÂY 👇 */
    background: rgba(255, 255, 255, 0.05); /* Màu nền của nút */
    padding: 0 15px; /* Độ rộng 2 bên trái phải */
    height: 42px; /* Chiều cao (Đang đặt bằng đúng chiều cao của nút 0đ để cân đối) */
    border-radius: 12px; /* Độ bo tròn góc */
    border: 1px solid rgba(255, 255, 255, 0.1); /* Viền của nút */
    /* ============================ */
    
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    transition: 0.3s;
    margin: 0 !important; /* Xóa margin cũ tránh bị lệch */
}

.lang-switcher:hover {
    background: rgba(139, 92, 246, 0.15); /* Màu nền khi di chuột qua */
    border-color: var(--primary-color);
    box-shadow: 0 0 15px rgba(139, 92, 246, 0.3);
}

/* Đảm bảo Menu xổ xuống không bị xô lệch */
.lang-menu {
    position: absolute;
    top: 120%;
    right: 0;
    background: #110929; /* Màu nền menu xổ xuống */
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: 12px;
    list-style: none;
    padding: 8px 0;
    min-width: 170px;
    display: none;
    box-shadow: 0 10px 30px rgba(0,0,0,0.8);
    z-index: 1000;
    max-height: 250px;
    overflow-y: auto;
}