/* ============================================================
   auth.css — 로그인 · 회원가입 페이지 전용 스타일
   ============================================================ */

.auth-section {
    min-height: calc(100vh - 140px);
    display: flex;
    align-items: center;
    background: var(--bg-subtle);
    padding: var(--space-12) 0;
}

.auth-wrap {
    width: 100%;
    max-width: 480px;
    margin: 0 auto;
}

/* ---- 헤더 ---- */
.auth-header {
    text-align: center;
    margin-bottom: var(--space-8);
}
.auth-header__logo {
    display: inline-block;
    margin-bottom: var(--space-5);
}
.auth-header__logo img {
    height: 36px;
}
.auth-header h1 {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-extrabold);
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}
.auth-header p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* ---- 카드 ---- */
.auth-card {
    background: var(--color-white);
    border-radius: var(--border-radius-xl);
    padding: var(--space-8);
    box-shadow: var(--shadow-md);
}

/* ---- 소셜 버튼 ---- */
.social-login {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin-bottom: var(--space-6);
}
.btn-social {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    width: 100%;
    padding: 13px var(--space-5);
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    border: none;
    transition: filter var(--transition-fast), transform var(--transition-fast);
    text-decoration: none;
    line-height: 1;
}
.btn-social:hover {
    filter: brightness(.95);
    transform: translateY(-1px);
}
.btn-social img {
    width: 20px;
    height: 20px;
    object-fit: contain;
}
.btn-social--kakao {
    background: #FEE500;
    color: #191919;
}
.btn-social--naver {
    background: #03C75A;
    color: #fff;
}
.btn-social--google {
    background: #fff;
    color: #1f1f1f;
    border: 1px solid var(--border-color, #dadce0);
}
.btn-social__g {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    font-weight: 700;
    color: #4285F4;
    font-family: Arial, sans-serif;
}

/* ---- 인증 알림 박스 ---- */
.auth-alert {
    padding: 12px 14px;
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    line-height: 1.5;
    margin-bottom: var(--space-5);
}
.auth-alert--error {
    background: var(--color-danger-bg, #fdecea);
    color: var(--color-danger, #c0392b);
}
.auth-alert--info {
    background: var(--color-primary-bg, #eef2ff);
    color: var(--color-primary, #3b5bdb);
}

/* ---- 구분선 ---- */
.auth-divider {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin: var(--space-6) 0;
    color: var(--text-muted);
    font-size: var(--font-size-xs);
}
.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-color);
}

/* ---- 폼 필드 ---- */
.auth-form { display: flex; flex-direction: column; gap: var(--space-4); }

.form-row {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}
.form-row label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
}
.form-row label .required { color: var(--color-primary); margin-left: 2px; }

.input-group {
    display: flex;
    gap: var(--space-2);
}
.input-group .form-control { flex: 1; }
.input-group .btn-check {
    flex-shrink: 0;
    padding: 0 var(--space-4);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    white-space: nowrap;
    background: var(--color-secondary);
    color: var(--color-white);
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background var(--transition-fast);
}
.input-group .btn-check:hover { background: #2a2a4a; }
.input-group .btn-check:disabled {
    background: var(--color-gray-300);
    cursor: not-allowed;
}

.form-hint {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 2px;
}
.form-error {
    font-size: 11px;
    color: var(--color-error);
    margin-top: 2px;
    display: none;
}
.form-error.is-visible { display: block; }
.form-success {
    font-size: 11px;
    color: var(--color-success);
    margin-top: 2px;
    display: none;
}
.form-success.is-visible { display: block; }

.form-control.is-error {
    border-color: var(--color-error);
    background: #fff5f5;
}
.form-control.is-valid {
    border-color: var(--color-success);
}

/* ---- SMS 타이머 ---- */
.sms-timer {
    font-size: 12px;
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
    margin-top: var(--space-1);
}

/* ---- 자동 로그인 체크박스 ---- */
.auth-options {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.check-label {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    cursor: pointer;
    user-select: none;
}
.check-label input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--color-primary);
    cursor: pointer;
}

/* ---- 회원 유형 선택 ---- */
.member-type-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3);
    margin-bottom: var(--space-2);
}
.member-type-item {
    position: relative;
}
.member-type-item input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}
.member-type-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-5) var(--space-3);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
    background: var(--bg-subtle);
    text-align: center;
}
.member-type-label:hover {
    border-color: var(--color-primary);
    background: var(--color-primary-bg);
}
.member-type-item input:checked + .member-type-label {
    border-color: var(--color-primary);
    background: var(--color-primary-bg);
    box-shadow: 0 0 0 3px rgba(255,59,48,.1);
}
.member-type-label .type-icon { font-size: 28px; }
.member-type-label .type-icon i { color: var(--color-gray-400); line-height: 1; }
.member-type-item input:checked + .member-type-label .type-icon i { color: var(--color-primary); }
.member-type-label .type-name {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
}
.member-type-label .type-desc {
    font-size: 11px;
    color: var(--text-muted);
    line-height: 1.3;
}

/* ---- 약관 ---- */
.terms-section {
    background: var(--bg-subtle);
    border-radius: var(--border-radius);
    padding: var(--space-4);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    border: 1px solid var(--border-color);
}
.terms-all {
    padding-bottom: var(--space-3);
    border-bottom: 1px solid var(--border-color);
}
.terms-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.terms-check {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    cursor: pointer;
}
.terms-check input[type="checkbox"] {
    width: 15px;
    height: 15px;
    accent-color: var(--color-primary);
    cursor: pointer;
    flex-shrink: 0;
}
.terms-view {
    font-size: 11px;
    color: var(--text-muted);
    text-decoration: underline;
    flex-shrink: 0;
}
.terms-view:hover { color: var(--color-primary); }

/* ---- 제출 버튼 ---- */
.btn-auth-submit {
    width: 100%;
    padding: 15px;
    background: var(--color-primary);
    color: var(--color-white);
    border: none;
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-bold);
    cursor: pointer;
    transition: background var(--transition-fast), transform var(--transition-fast);
    margin-top: var(--space-2);
}
.btn-auth-submit:hover:not(:disabled) {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
}
.btn-auth-submit:disabled {
    background: var(--color-gray-300);
    cursor: not-allowed;
    transform: none;
}

/* ---- 하단 링크 ---- */
.auth-footer {
    text-align: center;
    margin-top: var(--space-5);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}
.auth-footer a {
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
    margin-left: var(--space-1);
}

/* ---- 약관 모달 ---- */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.5);
    z-index: var(--z-modal);
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
}
.modal-overlay.is-open { display: flex; }
.modal-box {
    background: var(--color-white);
    border-radius: var(--border-radius-xl);
    width: 100%;
    max-width: 540px;
    max-height: 70vh;
    display: flex;
    flex-direction: column;
}
.modal-box__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-5) var(--space-6);
    border-bottom: 1px solid var(--border-color);
}
.modal-box__header h3 {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-bold);
}
.modal-box__close {
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--text-muted);
    line-height: 1;
    padding: 2px;
}
.modal-box__body {
    overflow-y: auto;
    padding: var(--space-6);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: var(--line-height-relaxed);
}

/* ---- 반응형 ---- */
@media (max-width: 520px) {
    .auth-card { padding: var(--space-6); border-radius: var(--border-radius-lg); }
    .member-type-grid { grid-template-columns: 1fr 1fr; gap: var(--space-2); }
    .member-type-label { padding: var(--space-4) var(--space-2); }
    .member-type-label .type-icon { font-size: 22px; }
}

/* ---- 비밀번호 보이기 토글 ---- */
.pw-field { position: relative; }
.pw-field .form-control { padding-right: 44px; }
.pw-toggle {
    position: absolute;
    top: 50%;
    right: 10px;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    color: var(--color-gray-400);
    font-size: 1rem;
    line-height: 1;
}
.pw-toggle:hover { color: var(--color-gray-600); }