/* ========================================
   Login Page Styles
   Page Prefix: .login-
   ======================================== */

/* ========================================
   메인 레이아웃
   ======================================== */
.login-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: calc(100vh - var(--header-height));
}

/* ========================================
   왼쪽: 브랜딩 영역
   ======================================== */
.login-brand-section {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xxl);
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    position: relative;
    overflow: hidden;
}

.login-brand-section::before {
    content: '';
    position: absolute;
    top: -30%;
    left: -30%;
    width: 80%;
    height: 80%;
    background: radial-gradient(circle, var(--color-primary-light) 0%, transparent 70%);
    opacity: 0.4;
}

.login-brand-section::after {
    content: '';
    position: absolute;
    bottom: -20%;
    right: -20%;
    width: 60%;
    height: 60%;
    background: radial-gradient(circle, rgba(14, 203, 129, 0.1) 0%, transparent 70%);
}

.login-brand {
    position: relative;
    z-index: 1;
    max-width: 500px;
}

.login-brand__title {
    font-size: 48px;
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    line-height: 1.2;
    margin-bottom: var(--spacing-lg);
}

.login-brand__highlight {
    color: var(--color-primary);
}

.login-brand__desc {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-xxl);
}

/* ========================================
   브랜드 통계
   ======================================== */
.login-brand__stats {
    display: flex;
    gap: var(--spacing-xxl);
    margin-bottom: var(--spacing-xxl);
}

.login-brand__stat {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.login-brand__stat-value {
    font-size: var(--font-size-hero);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    font-family: var(--font-mono);
}

.login-brand__stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* ========================================
   마켓 티커
   ======================================== */
.login-brand__ticker {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid var(--border-color);
}

.login-ticker {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.login-ticker__item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
}

.login-ticker__item:not(:last-child) {
    border-bottom: 1px solid var(--border-color);
}

.login-ticker__symbol {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
}

.login-ticker__price {
    font-size: var(--font-size-sm);
    font-family: var(--font-mono);
    color: var(--text-primary);
}

.login-ticker__change {
    font-size: var(--font-size-sm);
    font-family: var(--font-mono);
    font-weight: var(--font-weight-medium);
    min-width: 70px;
    text-align: right;
}

/* ========================================
   오른쪽: 폼 영역
   ======================================== */
.login-form-section {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xxl);
    background: var(--bg-primary);
}

.login-form-wrapper {
    width: 100%;
    max-width: 400px;
}

/* ========================================
   로그인 스텝
   ======================================== */
.login-step {
    display: none;
}

.login-step.active {
    display: block;
    animation: loginFadeIn 0.3s ease;
}

@keyframes loginFadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-title {
    font-size: var(--font-size-xxl);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.login-subtitle {
    font-size: var(--font-size-md);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
}

/* ========================================
   소셜 로그인
   ======================================== */
.login-social {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.login-social-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.login-social-btn:hover {
    background: var(--bg-hover);
    border-color: var(--border-color-light);
}

.login-social-btn__icon {
    width: 24px;
    height: 24px;
}

/* ========================================
   구분선
   ======================================== */
.login-divider {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.login-divider::before,
.login-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-color);
}

.login-divider span {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
}

/* ========================================
   폼 스타일
   ======================================== */
.login-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.login-form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.login-label-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.login-label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--text-secondary);
}

.login-forgot-link {
    font-size: var(--font-size-sm);
    color: var(--color-primary);
}

.login-forgot-link:hover {
    text-decoration: underline;
}

.login-input-wrapper {
    position: relative;
}

.login-input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    padding-right: 48px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: var(--font-size-md);
    transition: all var(--transition-fast);
}

.login-input:hover {
    border-color: var(--border-color-light);
}

.login-input:focus {
    border-color: var(--color-primary);
    outline: none;
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.login-input::placeholder {
    color: var(--text-tertiary);
}

.login-input-icon {
    position: absolute;
    right: var(--spacing-lg);
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    color: var(--text-tertiary);
    pointer-events: none;
}

/* ========================================
   비밀번호 토글
   ======================================== */
.login-password-toggle {
    position: absolute;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    transition: color var(--transition-fast);
}

.login-password-toggle:hover {
    color: var(--text-secondary);
}

.login-password-toggle svg {
    width: 20px;
    height: 20px;
}

/* ========================================
   에러 메시지
   ======================================== */
.login-error {
    display: none;
    font-size: var(--font-size-xs);
    color: var(--color-error);
    margin-top: var(--spacing-xs);
}

.login-error--center {
    text-align: center;
}

/* ========================================
   로그인 유지
   ======================================== */
.login-remember {
    margin-top: var(--spacing-sm);
}

.login-checkbox {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
}

.login-checkbox input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.login-checkbox__mark {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    border: 2px solid var(--border-color-light);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.login-checkbox__mark::after {
    content: '';
    width: 10px;
    height: 10px;
    background: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' fill='none' stroke='%230b0e11' stroke-width='3' xmlns='http://www.w3.org/2000/svg'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") no-repeat center;
    background-size: contain;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.login-checkbox input:checked + .login-checkbox__mark {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.login-checkbox input:checked + .login-checkbox__mark::after {
    opacity: 1;
}

.login-checkbox__text {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* ========================================
   제출 버튼
   ======================================== */
.login-submit {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--color-primary);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-semibold);
    color: var(--bg-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.login-submit:hover:not(:disabled) {
    background: var(--color-primary-hover);
}

.login-submit:disabled {
    background: var(--bg-tertiary);
    color: var(--text-tertiary);
    cursor: not-allowed;
}

.login-submit__loading {
    display: none;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.login-submit.loading .login-submit__text {
    visibility: hidden;
}

.login-submit.loading .login-submit__loading {
    display: block;
}

.login-submit .spinner {
    width: 24px;
    height: 24px;
    border-color: rgba(0, 0, 0, 0.2);
    border-top-color: var(--bg-primary);
}

/* ========================================
   회원가입 링크
   ======================================== */
.login-register-link {
    text-align: center;
    margin-top: var(--spacing-xl);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.login-register-link a {
    color: var(--color-primary);
    font-weight: var(--font-weight-medium);
}

.login-register-link a:hover {
    text-decoration: underline;
}

/* ========================================
   2FA 스텝
   ======================================== */
.login-back-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    cursor: pointer;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-xs) 0;
    transition: color var(--transition-fast);
}

.login-back-btn:hover {
    color: var(--text-primary);
}

.login-back-btn svg {
    width: 18px;
    height: 18px;
}

.login-2fa-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.login-2fa-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-lg);
    background: var(--color-primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
}

.login-2fa-icon svg {
    width: 32px;
    height: 32px;
}

/* ========================================
   2FA 탭
   ======================================== */
.login-2fa-tabs {
    display: flex;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: var(--spacing-xs);
    margin-bottom: var(--spacing-xl);
}

.login-2fa-tab {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.login-2fa-tab:hover {
    color: var(--text-primary);
}

.login-2fa-tab.active {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.login-2fa-tab svg {
    width: 16px;
    height: 16px;
}

/* ========================================
   2FA 콘텐츠
   ======================================== */
.login-2fa-content {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.login-2fa-desc {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-xl);
}

/* ========================================
   코드 입력
   ======================================== */
.login-code-inputs {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.login-code-input {
    width: 48px;
    height: 56px;
    text-align: center;
    font-size: var(--font-size-xl);
    font-family: var(--font-mono);
    font-weight: var(--font-weight-semibold);
    background: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.login-code-input:hover {
    border-color: var(--border-color-light);
}

.login-code-input:focus {
    border-color: var(--color-primary);
    outline: none;
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

/* ========================================
   재전송 버튼
   ======================================== */
.login-resend-btn {
    background: none;
    border: none;
    color: var(--color-primary);
    font-size: var(--font-size-sm);
    cursor: pointer;
    padding: var(--spacing-sm);
    transition: color var(--transition-fast);
}

.login-resend-btn:hover:not(:disabled) {
    text-decoration: underline;
}

.login-resend-btn:disabled {
    color: var(--text-tertiary);
    cursor: not-allowed;
}

/* ========================================
   복구 코드 링크
   ======================================== */
.login-recovery-link {
    text-align: center;
    margin-top: var(--spacing-xl);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.login-recovery-link a {
    color: var(--color-primary);
}

.login-recovery-link a:hover {
    text-decoration: underline;
}

/* ========================================
   보안 토스트
   ======================================== */
.login-toast {
    position: fixed;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-secondary);
    border: 1px solid var(--color-success);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    animation: loginToastIn 0.3s ease;
    z-index: 9999;
}

@keyframes loginToastIn {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

.login-toast svg {
    width: 20px;
    height: 20px;
    color: var(--color-success);
}

.login-toast span {
    font-size: var(--font-size-sm);
    color: var(--text-primary);
}

/* ========================================
   반응형 - 태블릿
   ======================================== */
@media (max-width: 1024px) {
    .login-container {
        grid-template-columns: 1fr;
    }

    .login-brand-section {
        display: none;
    }

    .login-form-section {
        padding: var(--spacing-xl);
    }
}

/* ========================================
   반응형 - 모바일
   ======================================== */
@media (max-width: 768px) {
    .login-form-section {
        padding: var(--spacing-lg);
        align-items: flex-start;
        padding-top: var(--spacing-xl);
    }

    .login-form-wrapper {
        max-width: 100%;
    }

    .login-title {
        font-size: var(--font-size-xl);
    }

    .login-social {
        gap: var(--spacing-sm);
    }

    .login-social-btn {
        padding: var(--spacing-sm);
    }

    .login-input {
        padding: var(--spacing-sm) var(--spacing-md);
        padding-right: 44px;
        font-size: var(--font-size-sm);
    }

    .login-submit {
        padding: var(--spacing-sm) var(--spacing-lg);
    }

    .login-2fa-tabs {
        flex-wrap: wrap;
    }

    .login-2fa-tab {
        flex: 1 1 auto;
        min-width: 80px;
    }

    .login-code-inputs {
        gap: var(--spacing-xs);
    }

    .login-code-input {
        width: 40px;
        height: 48px;
        font-size: var(--font-size-lg);
    }

    .login-toast {
        left: var(--spacing-md);
        right: var(--spacing-md);
        transform: none;
        bottom: var(--spacing-lg);
    }

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

/* ========================================
   포커스 스타일
   ======================================== */
.login-social-btn:focus-visible,
.login-input:focus-visible,
.login-submit:focus-visible,
.login-2fa-tab:focus-visible,
.login-code-input:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.login-checkbox input:focus-visible + .login-checkbox__mark {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* ========================================
   애니메이션 감소
   ======================================== */
@media (prefers-reduced-motion: reduce) {
    .login-step.active {
        animation: none;
    }

    .login-toast {
        animation: none;
    }
}