:root {
    --bg-color: #0f0c29;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --accent: #7b4397; 
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
    background-attachment: fixed;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--text-primary);
    overflow-x: hidden;
    position: relative;
}

/* Tạo mấy cục màu nền loang lổ để hiệu ứng kính rõ hơn */
.background-shape {
    position: fixed;
    border-radius: 50%;
    filter: blur(80px);
    z-index: -1;
}
.shape-1 {
    width: 300px;
    height: 300px;
    background: #7b4397;
    top: -50px;
    left: -50px;
}
.shape-2 {
    width: 400px;
    height: 400px;
    background: #dc2430;
    bottom: -100px;
    right: -100px;
    opacity: 0.6;
}

/* Container chính */
.glass-container {
    width: 90%;
    max-width: 1000px;
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

header {
    text-align: center;
    margin-bottom: 40px;
}

header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 10px;
}

header p {
    color: var(--text-secondary);
}

/* Grid layout cho các card */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

/* Style cho từng Card Web */
.card {
    display: flex;
    align-items: center;
    gap: 15px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    padding: 20px;
    border-radius: 15px;
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.card:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
    border-color: rgba(255, 255, 255, 0.3);
}

.icon-box {
    width: 50px;
    height: 50px;
    background: rgba(255,255,255,0.1);
    border-radius: 12px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.material-icons {
    font-size: 28px;
    color: #fff;
}

.content h3 {
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.content p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.4;
}