/* === AI Oktató — Dark Theme === */

:root {
    --bg: #0d1117;
    --bg-card: #161b22;
    --bg-hover: #1c2333;
    --border: #30363d;
    --text: #e6edf3;
    --text-dim: #8b949e;
    --accent: #58a6ff;
    --accent-hover: #79c0ff;
    --facebook-color: #1877f2;
    --success: #3fb950;
    --danger: #f85149;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.navbar {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    padding: 0.8rem 1rem;
}
.nav-inner {
    max-width: 960px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.nav-brand { font-size: 1.3rem; font-weight: 700; color: var(--accent); text-decoration: none; }
.nav-links { display: flex; gap: 1rem; }
.nav-links a { color: var(--text-dim); text-decoration: none; font-size: 0.95rem; padding: 0.3rem 0.6rem; border-radius: 6px; transition: 0.2s; }
.nav-links a:hover { color: var(--text); background: var(--bg-hover); }

.container { max-width: 960px; margin: 0 auto; padding: 2rem 1rem; flex: 1; }

.btn {
    display: inline-block; padding: 0.7rem 1.5rem; border: 1px solid var(--border);
    border-radius: 8px; background: var(--bg-card); color: var(--text);
    text-decoration: none; font-size: 1rem; cursor: pointer; transition: 0.2s;
}
.btn:hover { background: var(--bg-hover); border-color: var(--accent); }
.btn-primary { background: var(--accent); color: #000; border: none; font-weight: 600; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-donate { background: linear-gradient(135deg, #f093fb, #f5576c); color: #fff; border: none; }

.btn-google, .btn-facebook {
    display: flex; align-items: center; justify-content: center; gap: 0.5rem;
    padding: 0.8rem 1.5rem; border-radius: 8px; font-size: 1rem; font-weight: 500; text-decoration: none;
}
.btn-google { background: #fff; color: #333; border: 1px solid #ddd; }
.btn-facebook { background: var(--facebook-color); color: #fff; border: none; }

.login-page { display: flex; justify-content: center; align-items: center; min-height: 70vh; }
.login-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px; padding: 2.5rem; width: 100%; max-width: 420px; text-align: center; }
.login-icon { font-size: 3rem; }
.login-card h1 { margin: 0.5rem 0; font-size: 1.8rem; }
.login-subtitle { color: var(--text-dim); margin-bottom: 2rem; }
.login-buttons { display: flex; flex-direction: column; gap: 0.8rem; }

.donation-counter { margin-top: 1.5rem; padding: 1rem; background: linear-gradient(135deg, #1a1a2e, #2d1b3d); border-radius: 8px; }
.donation-counter h3 { font-size: 0.9rem; color: var(--text-dim); }
.donation-amount { font-size: 2rem; font-weight: 700; color: #f5576c; }
.donation-count { color: var(--text-dim); font-size: 0.85rem; }

.login-info { margin-top: 1.5rem; color: var(--text-dim); font-size: 0.9rem; }

.role-page { text-align: center; }
.role-prompt { color: var(--text-dim); margin: 1rem 0 2rem; }
.role-cards { display: flex; gap: 1rem; flex-wrap: wrap; justify-content: center; }
.role-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px; padding: 2rem; width: 280px; cursor: pointer; transition: 0.2s; text-align: center; font-family: inherit; color: var(--text); }
.role-card:hover { border-color: var(--accent); background: var(--bg-hover); }
.role-icon { font-size: 2.5rem; display: block; margin-bottom: 0.5rem; }
.role-card h2 { margin: 0.5rem 0; }
.role-card p { color: var(--text-dim); font-size: 0.9rem; }

.welcome-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px; padding: 2rem; text-align: center; margin-bottom: 2rem; }
.welcome-card h1 { margin-bottom: 0.5rem; }
.welcome-card p { margin-bottom: 1.5rem; }

.recent-sessions { margin-bottom: 2rem; }
.recent-sessions h2 { margin-bottom: 1rem; }
.session-list { display: flex; flex-direction: column; gap: 0.5rem; }
.session-item { background: var(--bg-card); border: 1px solid var(--border); border-radius: 8px; padding: 1rem; }
.session-meta { display: flex; gap: 1rem; align-items: center; font-size: 0.9rem; }

.chat-area { background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
.chat-messages { height: 400px; overflow-y: auto; padding: 1rem; }
.message { padding: 0.8rem 1rem; margin-bottom: 0.5rem; border-radius: 8px; font-size: 0.95rem; line-height: 1.5; }
.message.user { background: var(--accent); color: #000; margin-left: auto; max-width: 80%; }
.message.assistant { background: var(--bg-hover); max-width: 85%; }

.chat-input-area { display: flex; gap: 0.5rem; padding: 1rem; border-top: 1px solid var(--border); }
#chat-input { flex: 1; padding: 0.7rem; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); color: var(--text); font-family: inherit; font-size: 0.95rem; resize: none; }

.session-timer { font-size: 1.3rem; font-weight: 700; }
.session-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }

.summary-box { background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px; padding: 1.5rem; margin-top: 1rem; text-align: center; }

.profile-page { display: flex; justify-content: center; align-items: center; min-height: 60vh; }
.profile-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px; padding: 2rem; text-align: center; max-width: 400px; width: 100%; }
.profile-avatar { width: 80px; height: 80px; border-radius: 50%; margin-bottom: 0.5rem; }

.footer { text-align: center; padding: 1.5rem; color: var(--text-dim); font-size: 0.85rem; border-top: 1px solid var(--border); }

.donation-options { display: flex; gap: 0.5rem; flex-wrap: wrap; justify-content: center; margin-bottom: 1rem; }
.modal { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.7); display: flex; align-items: center; justify-content: center; z-index: 100; }

@media (max-width: 600px) { .role-cards { flex-direction: column; align-items: center; } .chat-messages { height: 300px; } .login-card { padding: 1.5rem; } }