/* Auth Pages */
.auth-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--background-white);
}

.auth-page .navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.97);
    border-bottom: 1px solid var(--border-color);
}

.auth-wrapper {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: calc(var(--navbar-height) + 2rem) 1.5rem 3rem;
}

.login-container,
.registration-container {
    max-width: 420px;
    width: 100%;
    padding: 2.5rem;
    background: var(--background-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-card);
    border: 1px solid var(--border-color);
    animation: authEnter 0.6s var(--ease-out) both;
}

@keyframes authEnter {
    from { opacity: 0; transform: translateY(20px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.registration-container {
    max-width: 800px;
}

.login-header,
.registration-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header h2,
.registration-header h2 {
    color: var(--text-primary);
    margin-bottom: 0.4rem;
    font-weight: 800;
    font-size: 1.65rem;
    letter-spacing: -0.03em;
}

.login-header p,
.registration-header p {
    color: var(--text-secondary);
    font-size: 0.925rem;
}

.login-buttons .btn,
.form-actions .btn {
    width: 100%;
}

.login-footer,
.registration-footer {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.login-footer a,
.registration-footer a {
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: none;
}

.login-footer a:hover,
.registration-footer a:hover {
    color: var(--primary-hover);
}

.registration-container .form-section {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.registration-container .form-section:last-of-type {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.registration-container .form-section h3 {
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.registration-container .form-section h3 i {
    color: var(--primary-color);
}

.health-conditions {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 0.5rem;
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 0.85rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.checkbox-group:hover {
    border-color: var(--primary-color);
    background: var(--primary-light);
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    accent-color: var(--primary-color);
}

.registration-container textarea,
.login-container textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.925rem;
    resize: vertical;
    min-height: 80px;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.registration-container textarea:focus,
.login-container textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.12);
}

.error-message {
    color: var(--primary-color);
    font-size: 0.825rem;
    margin-top: 0.3rem;
}

.form-actions {
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

@media (max-width: 600px) {
    .login-container,
    .registration-container {
        padding: 1.75rem 1.25rem;
        border-radius: var(--radius-lg);
    }
}

/* Registration type toggle (donor / blood bank) */
.register-type-toggle {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    padding: 0.35rem;
    margin-bottom: 1rem;
    background: var(--primary-light);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.register-type-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.75rem 1rem;
    border: none;
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast);
}

.register-type-btn:hover {
    color: var(--primary-color);
}

.register-type-btn.active {
    background: var(--background-white);
    color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.register-type-hint {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0 0 1.5rem;
    line-height: 1.5;
}

.bb-form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.bb-form-grid .form-group.full-width {
    grid-column: 1 / -1;
}

@media (max-width: 600px) {
    .bb-form-grid {
        grid-template-columns: 1fr;
    }

    .register-type-btn {
        font-size: 0.8rem;
        padding: 0.65rem 0.5rem;
    }

    .register-type-btn i {
        display: none;
    }
}