:root {
    --primary-color: #6366f1;
    --text-main: #1f2937;
    --text-muted: #6b7280;
    --bg-gradient: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    --card-bg: rgba(255, 255, 255, 0.85);
    --card-border: rgba(255, 255, 255, 0.5);
    --shadow: 0 12px 40px rgba(31, 38, 135, 0.1);
}

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

body {
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    color: var(--text-main);
    line-height: 1.8;
    background: #f0f2f5;
    background-image: url('background.png');
    background-attachment: fixed;
    background-size: cover;
    background-position: center;
    min-height: 100vh;
    padding: 60px 20px;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--card-border);
    border-radius: 32px;
    padding: 60px 80px;
    box-shadow: var(--shadow);
    animation: slideUp 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

header {
    text-align: center;
    margin-bottom: 60px;
}

h1 {
    font-size: 2.8rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 16px;
}

.date-info {
    font-size: 0.95rem;
    color: var(--text-muted);
    background: rgba(99, 102, 241, 0.05);
    display: inline-block;
    padding: 6px 16px;
    border-radius: 99px;
}

section {
    margin-bottom: 48px;
}

h2 {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 24px;
    color: #111827;
    display: flex;
    align-items: center;
    gap: 12px;
}

h2::before {
    content: '';
    display: block;
    width: 4px;
    height: 24px;
    background: var(--primary-color);
    border-radius: 2px;
}

p {
    margin-bottom: 16px;
    color: #374151;
}

.content-block {
    background: rgba(255, 255, 255, 0.4);
    padding: 24px;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

ul {
    list-style: none;
    padding-left: 0;
}

li {
    position: relative;
    padding-left: 28px;
    margin-bottom: 14px;
    color: #4b5563;
}

li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.footer {
    text-align: center;
    margin-top: 80px;
    padding-top: 40px;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    font-size: 0.9rem;
    color: var(--text-muted);
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 768px) {
    .container {
        padding: 40px 24px;
        border-radius: 24px;
    }
    h1 { font-size: 2rem; }
    body { padding: 30px 15px; }
}