:root {
    --bg-color: #f7f5f8;
    --surface-color: #ffffff;
    --border-color: #e2dce6;
    --text-main: #2b262f;
    --text-muted: #6e6573;
    --accent-color: #8c6fa1;
    --accent-hover: #76588c;
    --shadow: 0 4px 20px rgba(140, 111, 161, 0.06);
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.announcement-bar {
    background-color: #e50914;
    color: white;
    text-align: center;
    padding: 8px 0;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

header {
    background: var(--surface-color);
    padding: 24px 48px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow);
}

.logo {
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 1.5px;
    color: var(--text-main);
    text-transform: uppercase;
}

nav a {
    color: var(--text-muted);
    text-decoration: none;
    margin-left: 32px;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.2s ease;
    cursor: pointer;
    position: relative;
    padding-bottom: 4px;
}

nav a:hover, nav a.active-link {
    color: var(--accent-color);
}

nav a.active-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--accent-color);
    border-radius: 2px;
}

.container {
    max-width: 800px;
    margin: 80px auto;
    padding: 0 24px;
    flex: 1;
    width: 100%;
    box-sizing: border-box;
}

section {
    display: none;
    background: var(--surface-color);
    padding: 48px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    opacity: 0;
    transform: translateY(6px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

section.active {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

h2 {
    margin-top: 0;
    color: var(--text-main);
    font-size: 24px;
    font-weight: 600;
    letter-spacing: -0.5px;
}

p {
    line-height: 1.7;
    color: var(--text-muted);
    font-size: 15px;
    margin-bottom: 24px;
}

.btn {
    display: inline-block;
    background: var(--accent-color);
    color: #ffffff;
    padding: 12px 28px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: background 0.2s ease, transform 0.1s ease;
    box-shadow: 0 2px 8px rgba(140, 111, 161, 0.2);
}

.btn:hover {
    background: var(--accent-hover);
}

.btn:active {
    transform: scale(0.98);
}

footer {
    text-align: center;
    padding: 24px;
    font-size: 13px;
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
    background: var(--surface-color);
}

.welcome-visual img {
    max-width: 150px;
    margin-bottom: 20px;
    display: block;
}

.faq-section { 
    margin-top: 30px; 
}

.faq-item {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 10px;
    padding: 15px;
    background: #fcfcfc;
}

.faq-question {
    font-weight: 600;
    cursor: pointer;
    color: var(--accent-color);
    user-select: none;
}

.faq-answer {
    margin-top: 8px;
    font-size: 14px;
    color: var(--text-muted);
    display: none;
}