/* ===== Join / Member Registration page ===== */

main {
    width: min(760px, 100%);
    margin: 0 auto;
    padding: 140px 24px 80px;
}

main h1 {
    margin: 0 0 12px;
    color: var(--text);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    letter-spacing: -0.02em;
}

main p {
    color: var(--muted);
    line-height: 1.6;
}

/* mode switch */
.auth-mode-switch {
    display: flex;
    gap: 12px;
    margin: 24px 0;
    flex-wrap: wrap;
}

.auth-mode-btn {
    padding: 11px 22px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.auth-mode-btn.active {
    background: #facc15;
    color: #050505;
    border-color: #facc15;
}

/* form */
#join-form fieldset {
    padding: 20px 22px;
    margin-bottom: 18px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: var(--surface);
}

#join-form legend {
    padding: 0 8px;
    color: var(--text);
    font-weight: 700;
    font-size: 0.95rem;
}

#join-form label {
    color: var(--muted);
    font-size: 0.9rem;
    font-weight: 600;
}

#join-form input,
#join-form select {
    width: 100%;
    margin-top: 4px;
    padding: 11px 13px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--text);
    font-family: inherit;
    font-size: 0.95rem;
}

#join-form input:focus,
#join-form select:focus {
    outline: none;
    border-color: #facc15;
}

#sign-up-btn,
#sign-in-btn,
#sign-out-btn {
    padding: 13px 32px;
    border-radius: 999px;
    border: none;
    background: #facc15;
    color: #050505;
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease;
}

#sign-up-btn:hover,
#sign-in-btn:hover,
#sign-out-btn:hover {
    background: #eab308;
    transform: translateY(-2px);
}

/* messages */
#form-message {
    font-weight: 600;
    color: var(--muted);
}

#form-message.form-error {
    color: #ef4444;
}

#form-message.form-success {
    color: #22c55e;
}

/* signed-in status */
#auth-status {
    padding: 20px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: var(--surface);
}

#auth-status strong {
    color: #facc15;
}

@media (max-width: 700px) {
    main {
        padding: 120px 16px 60px;
    }
}