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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #000 0%, #111 50%, #000 100%); /* gradient đen */
    min-height: 100vh;
    padding: 20px;
    line-height: 1.6;
    overflow-x: auto;
}

/* Floating particles background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 177, 153, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(120, 158, 231, 0.2) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    background: rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 
        0 20px 40px rgba(0, 0, 0, 0.1),
        0 0 0 1px rgba(255, 255, 255, 0.1) inset;
    overflow: hidden;
    animation: slideInUp 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.header {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2) 0%, rgba(255, 255, 255, 0.1) 100%);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: white;
    text-align: center;
    padding: 40px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.header h1 {
    font-size: clamp(1.6rem, 5vw, 2.4rem);
    font-weight: 700;
    margin-bottom: 8px;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
    letter-spacing: -0.5px;
}

.header p {
    font-size: 1.1rem;
    opacity: 0.9;
    font-weight: 400;
}

.table-container {
    padding: 30px;
}

table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

th {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.15) 0%, rgba(255, 255, 255, 0.1) 100%);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    color: white;
    padding: 24px 20px;
    text-align: center;
    font-weight: 600;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.category-header {
    text-align: center;
    width: 150px;
    background: linear-gradient(135deg, rgba(52, 152, 219, 0.3) 0%, rgba(155, 89, 182, 0.3) 100%);
}

td {
    padding: 24px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    vertical-align: top;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}

.category-cell {
    font-weight: 700;
    font-size: 1.1rem;
    text-align: center;
    vertical-align: middle;
    border-right: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.category-cell::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.1) 50%, transparent 100%);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.category-cell:hover::before {
    transform: translateX(100%);
}

.bao-gom {
    background: linear-gradient(135deg, rgba(46, 204, 113, 0.15) 0%, rgba(39, 174, 96, 0.15) 100%);
    color: #27ae60;
    border-left: 3px solid rgba(46, 204, 113, 0.6);
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.khong-bao-gom {
    background: linear-gradient(135deg, rgba(231, 76, 60, 0.15) 0%, rgba(192, 57, 43, 0.15) 100%);
    color: #e74c3c;
    border-left: 3px solid rgba(231, 76, 60, 0.6);
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.details-cell {
    background: rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.95);
    line-height: 1.7;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.details-cell ul {
    list-style: none;
    padding: 0;
}

.details-cell li {
    margin: 12px 0;
    padding-left: 24px;
    position: relative;
    font-weight: 400;
    transition: all 0.3s ease;
}

.details-cell li:before {
    content: "◦";
    color: rgba(52, 152, 219, 0.8);
    font-weight: bold;
    position: absolute;
    left: 0;
    font-size: 1.2rem;
    animation: pulse 2s infinite;
}

.details-cell li:hover {
    transform: translateX(5px);
    color: white;
}

.pricing-cell {
    background: linear-gradient(135deg, rgba(255, 193, 7, 0.15) 0%, rgba(255, 152, 0, 0.15) 100%);
    color: #ffc107;
    font-size: 1.1rem;
    font-weight: 600;
    text-align: center;
    border-left: 3px solid rgba(255, 193, 7, 0.6);
    line-height: 1.8;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.highlight {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.25) 0%, rgba(255, 255, 255, 0.1) 100%);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    font-weight: 700;
    padding: 12px 16px;
    border-radius: 12px;
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    display: inline-block;
    transition: all 0.3s ease;
}

.highlight:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

tr:hover td {
    background: rgba(255, 255, 255, 0.05);
    transform: scale(1.01);
}

/* Responsive Design */
@media (max-width: 575px) {
    body {
        padding: 15px;
    }

    .header {
        padding: 30px 20px;
    }

    .header h1 {
        font-size: 1.8rem;
        line-height: 1.2;
    }

    .table-container {
        padding: 20px;
    }

    table, thead, tbody, th, td, tr {
        display: block;
    }

    thead tr {
        position: absolute;
        top: -9999px;
        left: -9999px;
    }

    tbody tr {
        background: rgba(255, 255, 255, 0.1);
        backdrop-filter: blur(15px);
        -webkit-backdrop-filter: blur(15px);
        border: 1px solid rgba(255, 255, 255, 0.2);
        border-radius: 16px;
        margin-bottom: 20px;
        padding: 20px;
        box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    }

    tbody td {
        border: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        position: relative;
        padding: 15px 0;
        text-align: left;
        font-size: 0.95rem;
        background: transparent !important;
        transform: none !important;
    }

    tbody td:before {
        content: attr(data-label);
        font-weight: 700;
        color: rgba(255, 255, 255, 0.8);
        display: block;
        margin-bottom: 8px;
        font-size: 0.85rem;
        text-transform: uppercase;
        letter-spacing: 0.5px;
        opacity: 0.9;
    }

    .category-cell {
        font-size: 1.3rem;
        text-align: center;
        padding: 20px 0;
        margin: -20px -20px 20px -20px;
        border-radius: 16px 16px 0 0;
        border-right: none;
        border-left: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    }

    .category-cell:before {
        content: "";
    }

    .details-cell li {
        font-size: 0.9rem;
        margin: 10px 0;
    }

    .highlight {
        font-size: 0.95rem;
        padding: 10px 14px;
    }
}

/* Animations */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(60px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.6;
        transform: scale(1);
    }
    50% {
        opacity: 1;
        transform: scale(1.1);
    }
}

/* Webkit scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.5);
}

/* Nút quay lại trang chủ */
.back-home {
  text-align: center;
  margin: 20px 0;
}

.back-home-btn {
  display: inline-block;
  padding: 10px 20px;
  background: linear-gradient(135deg, #ff7e5f, #feb47b);
  color: #fff;
  font-weight: bold;
  border-radius: 30px;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.back-home-btn:hover {
  background: linear-gradient(135deg, #feb47b, #ff7e5f);
  transform: scale(1.05);
  box-shadow: 0 6px 14px rgba(0, 0, 0, 0.4);
}

@media (max-width: 575px) {
  .back-home-btn {
    display: block;
    width: 80%;
    margin: 0 auto;
    font-size: 1rem;
    text-align: center;
  }
}