/* ========================================
   Registration Page
   ======================================== */

.register-section {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 100px var(--section-padding-x) 60px;
}

.register-card {
    width: 100%;
    max-width: 420px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 36px 30px 28px;
}

.register-title {
    font-size: 1.6rem;
    font-weight: 800;
    margin-bottom: 6px;
    text-align: center;
}

.register-subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 28px;
    text-align: center;
}

/* Honeypot */
#hpWeb {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
}

/* Form fields */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text-secondary);
}

.input-wrapper {
    position: relative;
}

.input-wrapper input {
    padding-right: 115px;
}

.input-hint {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.82rem;
    color: var(--text-secondary);
    pointer-events: none;
    font-family: var(--font-mono);
}

.form-group input {
    width: 100%;
    padding: 12px 14px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.2s ease;
}

.form-group input::placeholder {
    color: var(--text-secondary);
    opacity: 0.5;
}

.form-group input:focus {
    border-color: var(--gold);
}

.btn-full {
    width: 100%;
    margin-top: 6px;
}

.register-back {
    text-align: center;
    margin-top: 20px;
    font-size: 0.85rem;
}

.register-back a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.register-back a:hover {
    color: var(--gold);
}

/* PoW Captcha */
.captcha-group {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    padding: 14px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
}

.captcha-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    user-select: none;
}

.captcha-label input {
    display: none;
}

.captcha-box {
    width: 22px;
    height: 22px;
    border: 2px solid var(--border);
    border-radius: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.2s ease;
}

.captcha-label input:checked + .captcha-box {
    background: var(--gold);
    border-color: var(--gold);
}

.captcha-label input:checked + .captcha-box::after {
    content: '✓';
    color: var(--bg-primary);
    font-size: 0.8rem;
    font-weight: 700;
}

.captcha-text {
    font-size: 0.88rem;
    color: var(--text-secondary);
}

.captcha-status {
    font-size: 0.78rem;
    color: var(--text-secondary);
    white-space: nowrap;
}

.captcha-status.verifying {
    color: var(--gold);
}

.captcha-status.done {
    color: var(--gold);
}

/* Form messages */
.reg-message {
    padding: 12px 16px;
    border-radius: 10px;
    font-size: 0.88rem;
    margin-bottom: 20px;
    text-align: center;
}

.reg-message.success {
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.3);
    color: #22c55e;
}

.reg-message.error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #ef4444;
}

/* Disabled button */
.btn-full:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Responsive */
@media (max-width: 768px) {
    .register-section {
        min-height: calc(100vh - 56px);
        min-height: calc(100dvh - 56px);
    }

    .register-card {
        padding: 28px 22px 22px;
    }
}

@media (max-width: 480px) {
    .register-card {
        padding: 24px 18px 18px;
        border-radius: 12px;
    }
}