/* ============================================
   인증 화면 공용 (로그인·회원가입·아이디/비밀번호 찾기)
   틀은 includes/auth-layout.php — 로그인 화면의 좌우 분할 모양 기준
   ============================================ */

.auth-body {
    margin: 0;
    font-family: var(--font-family);
    background: var(--bg-page);
    min-height: 100vh;
    display: flex;
    touch-action: manipulation;
    word-break: keep-all;
}
.auth-body *,
.auth-body *::before,
.auth-body *::after { box-sizing: border-box; }

/* ── 왼쪽 브랜드 영역 ── */
.auth-brand {
    flex: 1;
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, #14B8A6 100%);
    position: relative;
    overflow: hidden;
}
.auth-brand::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: rgba(255,255,255,0.05);
    top: -200px;
    right: -200px;
}
.auth-brand::after {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: rgba(255,255,255,0.03);
    bottom: -100px;
    left: -100px;
}
/* 폼이 긴 화면(회원가입)에서도 브랜드 글은 화면 가운데에 머문다 */
.auth-brand-content {
    position: sticky;
    top: 0;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: var(--text-inverse);
    padding: var(--space-10);
    width: fit-content;
    max-width: 480px;
    margin: 0 auto;
}
.auth-brand-logo {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-3);
}
.auth-brand-desc {
    font-size: var(--font-size-lg);
    opacity: 0.9;
    line-height: var(--line-height-relaxed);
    margin: 0 0 var(--space-8);
}
.auth-brand-features {
    list-style: none;
    padding: 0;
    margin: 0;
}
.auth-brand-features li {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) 0;
    font-size: var(--font-size-md);
    opacity: 0.85;
}
.auth-brand-features li i {
    width: 32px;
    height: 32px;
    background: rgba(255,255,255,0.15);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    flex-shrink: 0;
}

/* ── 오른쪽 폼 영역 ── */
.auth-form-area {
    flex: 1;
    min-width: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-8);
}
.auth-form-wrapper {
    width: 100%;
    max-width: 400px;
}
.auth-form-wrapper--wide { max-width: 640px; }

/* 브랜드 영역이 숨는 좁은 화면에서만 보이는 로고 */
.auth-mobile-logo {
    display: none;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-6);
    color: var(--color-primary);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    text-decoration: none;
}

.auth-form-header {
    margin-bottom: var(--space-8);
}
.auth-form-header h1 {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin: 0 0 var(--space-2);
}
.auth-form-header p {
    color: var(--text-muted);
    font-size: var(--font-size-base);
    margin: 0;
}

/* ── 입력 필드 ── */
.auth-form-group {
    margin-bottom: var(--space-5);
}
.auth-form-group > label,
.auth-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--text-secondary);
    margin-bottom: var(--space-2);
}
.auth-label .required {
    color: var(--color-danger-ink);
    margin-left: 2px;
}
.auth-label .auth-label-note {
    color: var(--text-muted);
    font-weight: var(--font-weight-normal);
    font-size: var(--font-size-xs);
}
.auth-input-wrap {
    position: relative;
    flex: 1;
    min-width: 0;
}
.auth-input-wrap > i {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-gray-400);
    font-size: var(--font-size-base);
    pointer-events: none;
}
.auth-input {
    width: 100%;
    padding: 12px 14px 12px 42px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    color: var(--text-primary);
    background: var(--bg-card);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.auth-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.1);
}
.auth-input::placeholder {
    color: var(--color-gray-400-ink);
}
.auth-input:disabled,
.auth-input[readonly] {
    background: var(--color-gray-50);
    color: var(--text-muted);
}
.auth-input[aria-invalid="true"] { border-color: var(--color-danger); }

/* 입력칸 + 옆 버튼(중복확인·인증번호 받기) */
.auth-input-row {
    display: flex;
    gap: var(--space-2);
}
.auth-btn-side {
    padding: 0 16px;
    min-height: 46px;
    background: var(--color-gray-700);
    color: var(--text-inverse);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    font-family: var(--font-family);
    cursor: pointer;
    white-space: nowrap;
    flex-shrink: 0;
}
.auth-btn-side:hover:not(:disabled) { background: var(--color-gray-800); }
.auth-btn-side:disabled {
    background: var(--color-gray-300);
    color: var(--color-gray-500);
    cursor: not-allowed;
}

/* 입력칸 아래 안내·결과 문구 */
.auth-help {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    margin-top: var(--space-1);
}
.auth-feedback {
    font-size: var(--font-size-xs);
    margin-top: var(--space-1);
    color: var(--text-muted);
}
.auth-feedback:empty { display: none; }
.auth-feedback.valid { color: var(--color-success-ink); }
.auth-feedback.invalid { color: var(--color-danger-ink); }

/* ── 버튼 ── */
.auth-btn {
    display: block;
    width: 100%;
    padding: 12px;
    background: var(--color-primary);
    color: var(--text-inverse);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-semibold);
    font-family: var(--font-family);
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    transition: background-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}
.auth-btn:hover:not(:disabled) {
    background: var(--color-primary-dark);
    color: var(--text-inverse);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}
.auth-btn:disabled {
    background: var(--color-gray-300);
    color: var(--color-gray-500);
    cursor: not-allowed;
}

/* 카카오 로그인 (카카오 디자인 규정 색) */
.auth-btn-kakao {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: #FEE500;
    color: #191919;
    font-weight: var(--font-weight-semibold);
    padding: 12px;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-size: var(--font-size-base);
}
.auth-btn-kakao:hover { color: #191919; filter: brightness(0.97); }

/* ── 알림 ── */
.auth-error,
.auth-success,
.auth-notice {
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-5);
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
}
.auth-error > i,
.auth-success > i,
.auth-notice > i { margin-top: 3px; }
.auth-error {
    background: var(--color-danger-light);
    color: var(--color-danger-dark);
}
.auth-error ul {
    margin: 0;
    padding-left: var(--space-4);
}
.auth-error li + li { margin-top: var(--space-1); }
.auth-success {
    background: var(--color-success-light);
    color: var(--color-success-dark);
}
.auth-notice {
    background: var(--color-warning-light);
    color: var(--color-warning-dark);
    margin: var(--space-3) 0 0;
}

/* ── 링크 영역 ── */
.auth-links {
    text-align: center;
    margin-top: var(--space-3);
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}
.auth-links + .auth-links { margin-top: var(--space-2); }
.auth-links a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
}
.auth-links a:hover { text-decoration: underline; }

/* ── 구분선 ── */
.auth-divider {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin: var(--space-4) 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-light);
}

/* ── 단계 표시 (아이디/비밀번호 찾기) ── */
.auth-steps {
    display: flex;
    gap: var(--space-3);
    margin-bottom: var(--space-5);
}
.auth-step-dot {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--color-gray-200);
    color: var(--color-gray-500);
    font-size: var(--font-size-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-weight-semibold);
}
.auth-step-dot.active { background: var(--color-primary); color: var(--text-inverse); }
.auth-step-dot.done { background: var(--color-success); color: var(--text-inverse); }
.auth-step { display: none; }
.auth-step.active { display: block; }

/* 봇 차단용 숨은 칸 */
.auth-honeypot {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    opacity: 0;
}

/* ── 아이디 찾기 결과 ── */
.auth-id-list {
    margin: var(--space-4) 0;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
}
.auth-id-list ul { list-style: none; padding: 0; margin: 0; }
.auth-id-list li {
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-3);
}
.auth-id-list li:last-child { border-bottom: none; }
.auth-id-text {
    font-family: 'Courier New', monospace;
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    font-size: var(--font-size-base);
    letter-spacing: 0.5px;
}
.auth-id-meta { font-size: var(--font-size-xs); color: var(--text-muted); }
.auth-id-count {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    padding: var(--space-2) var(--space-4);
    background: var(--color-gray-50);
    border-bottom: 1px solid var(--border-color);
}

/* ── 회원가입: 2열 칸 ── */
.auth-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: var(--space-5);
}
.auth-grid > .auth-form-group { min-width: 0; }
.auth-grid .full-width { grid-column: 1 / -1; }
.auth-code-box { margin-top: var(--space-2); }
.auth-code-box[hidden] { display: none; }

/* 사업자등록증 끌어 놓기 (dropzone 부품 모양) */
.auth-body .dropzone { padding: var(--space-5); }
.auth-body .dropzone-content i { font-size: 28px; margin-bottom: var(--space-2); }
.auth-file-chosen {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    word-break: break-all;
}
.auth-file-chosen .dropzone-remove { position: static; flex-shrink: 0; }

/* ── 약관 동의 ── */
.auth-terms {
    margin-top: var(--space-2);
    padding-top: var(--space-5);
    border-top: 1px solid var(--border-light);
}
.auth-terms-item,
.auth-terms-all {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    margin-bottom: var(--space-3);
    border-left: 3px solid var(--border-color);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    background: var(--color-gray-50);
}
.auth-terms-all {
    background: var(--color-primary-bg);
    border-left-color: var(--color-primary);
}
.auth-terms-item label,
.auth-terms-all label {
    flex: 1;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin: 0;
}
.auth-terms-all label {
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary-dark);
}
.auth-terms input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--color-primary);
    cursor: pointer;
    flex-shrink: 0;
}
.auth-terms-link {
    font-size: var(--font-size-xs);
    color: var(--color-primary);
    white-space: nowrap;
}

/* ── 반응형 ── */
@media (max-width: 992px) {
    .auth-brand { display: none; }
    .auth-body { justify-content: center; }
    .auth-form-area { padding: var(--space-6); }
    .auth-mobile-logo { display: inline-flex; }
}
@media (max-width: 768px) {
    .auth-grid { grid-template-columns: 1fr; }
}
@media (max-width: 576px) {
    .auth-form-area { padding: var(--space-4); align-items: flex-start; }
    .auth-form-header { margin-bottom: var(--space-6); }
}
@media (prefers-reduced-motion: reduce) {
    .auth-btn:hover:not(:disabled) { transform: none; }
}

/* ── 약관 동의 항목 아래 요약 · 화면 아래 약관 링크 ── */
.auth-terms-item { flex-wrap: wrap; }
.auth-terms-desc {
    flex-basis: 100%;
    margin: 0;
    padding-left: calc(18px + var(--space-2));
    font-size: var(--font-size-xs);
    line-height: var(--line-height-relaxed);
    color: var(--text-muted);
}
.auth-legal {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
    margin-top: var(--space-8);
    padding-top: var(--space-4);
    border-top: 1px solid var(--border-light);
    font-size: var(--font-size-xs);
}
.auth-legal a {
    color: var(--text-muted);
    text-decoration: none;
    padding: var(--space-1) 0;
}
.auth-legal a strong { font-weight: var(--font-weight-semibold); color: var(--text-secondary); }
.auth-legal a:hover { color: var(--color-primary); text-decoration: underline; }