@import url('../reset.css');

:root {
    --login-primary: #6366f1;
    --login-primary-hover: #4f46e5;
    --login-primary-shadow: rgba(99, 102, 241, 0.35);
    --login-visual-bg: #151821;
    --login-visual-accent: #818cf8;
    --login-surface: #ffffff;
    --login-bg: #eef2f7;
    --login-border: #e2e8f0;
    --login-text: #1e293b;
    --login-text-muted: #64748b;
    --login-tab-bg: #f1f5f9;
    --login-radius: 10px;
    --login-radius-lg: 20px;
    --login-radius-pill: 999px;
    --login-touch-target-min: 44px;
    --login-box-width: 1080px;
    --login-box-min-height: 600px;
}

body {
    min-height: 100vh;
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--login-bg);
    color: var(--login-text);
}

/* 건너뛰기 링크 */
.skip-link {
    position: absolute;
    top: -100%;
    left: 16px;
    z-index: 100;
    padding: 12px 20px;
    background: var(--login-primary);
    color: #fff;
    border-radius: var(--login-radius);
    font-weight: 600;
    transition: top 0.2s ease;
}

.skip-link:focus {
    top: 16px;
    outline: 3px solid var(--login-visual-accent);
    outline-offset: 2px;
}

/* PC: 중앙 카드 — 좌우 5:5 균등 분할 */
.login-page {
    display: grid;
    grid-template-columns: 1fr 1fr;
    width: 100%;
    max-width: var(--login-box-width);
    min-height: var(--login-box-min-height);
    border-radius: var(--login-radius-lg);
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(15, 23, 42, 0.12);
}

/* ── 왼쪽 비주얼 ── */
.login-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--login-visual-bg);
    overflow: hidden;
    padding: 48px 40px;
}

.login-visual__bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.login-visual__bg::after {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(
        160deg,
        rgba(18, 21, 31, 0.92) 0%,
        rgba(18, 21, 31, 0.78) 45%,
        rgba(18, 21, 31, 0.55) 100%
    );
    pointer-events: none;
}

.login-visual__photo {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    pointer-events: none;
}

.login-visual__content {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 420px;
    color: #fff;
}

.login-visual__logo {
    max-width: 150px;
    max-height: 60px;
    object-fit: contain;
    margin-bottom: 28px;
    filter: brightness(0) invert(1);
}

.login-visual__tagline {
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.55);
    margin-bottom: 16px;
}

.login-visual__headline {
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 32px;
    color: #fff;
}

.login-visual__features {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.login-visual__features li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
}

.login-visual__feature-icon {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: rgba(255, 255, 255, 0.7);
}

.login-visual__feature-icon svg {
    width: 18px;
    height: 18px;
}

/* ── 오른쪽 로그인 ── */
.login-main {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 48px 44px;
    background: var(--login-surface);
}

.login-card {
    width: 100%;
    max-width: 420px;
    padding: 0;
    background: transparent;
    border-radius: 0;
    box-shadow: none;
}

.login-card__header {
    text-align: center;
    margin-bottom: 28px;
}

.login-card__logo {
    display: none;
    max-width: 150px;
    max-height: 60px;
    object-fit: contain;
    margin: 0 auto 20px;
}

.login-card__title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--login-text);
    margin-bottom: 8px;
}

.login-card__subtitle {
    font-size: 14px;
    color: var(--login-text-muted);
}

/* 탭 */
.login-tabs {
    display: flex;
    gap: 4px;
    padding: 4px;
    background: var(--login-tab-bg);
    border-radius: var(--login-radius);
    margin-bottom: 28px;
}

.login-tab {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: var(--login-touch-target-min);
    padding: 10px 12px;
    border: none;
    border-radius: calc(var(--login-radius) - 2px);
    background: transparent;
    color: var(--login-text-muted);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.login-tab:focus-visible {
    outline: 2px solid var(--login-primary);
    outline-offset: 2px;
}

.login-tab.is-active {
    background: var(--login-surface);
    color: var(--login-primary);
    box-shadow: 0 1px 3px rgba(15, 23, 42, 0.08);
}

.login-tab__icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

/* 폼 */
.login-form {
    display: flex;
    flex-direction: column;
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--login-text);
    margin-bottom: 8px;
}

.form-label-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.form-label-row .form-label {
    margin-bottom: 0;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 14px;
    width: 18px;
    height: 18px;
    color: var(--login-text-muted);
    pointer-events: none;
}

input[type="email"],
input[type="password"],
input[type="text"] {
    width: 100%;
    min-height: var(--login-touch-target-min);
    padding: 12px 44px 12px 44px;
    border: 1.5px solid var(--login-border);
    border-radius: var(--login-radius);
    font-size: 15px;
    color: var(--login-text);
    background: var(--login-surface);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input[type="email"]:focus,
input[type="password"]:focus,
input[type="text"]:focus {
    outline: none;
    border-color: var(--login-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.12);
}

input::placeholder {
    color: #94a3b8;
}

/* 비밀번호 표시 토글 */
.password-toggle {
    position: absolute;
    right: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: var(--login-touch-target-min);
    height: var(--login-touch-target-min);
    padding: 0;
    border: none;
    background: transparent;
    color: var(--login-text-muted);
    cursor: pointer;
    border-radius: var(--login-radius);
    transition: color 0.2s ease;
}

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

.password-toggle:focus-visible {
    outline: 2px solid var(--login-primary);
    outline-offset: -2px;
}

.password-toggle .icon-eye-off {
    display: none;
}

.password-toggle.is-visible .icon-eye {
    display: none;
}

.password-toggle.is-visible .icon-eye-off {
    display: block;
}

.password-toggle svg {
    width: 18px;
    height: 18px;
}

/* 옵션 */
.form-options {
    margin-bottom: 24px;
}

.remember-me {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 13px;
    color: var(--login-text-muted);
    min-height: var(--login-touch-target-min);
}

.remember-me input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--login-primary);
    cursor: pointer;
}

.forgot-password {
    font-size: 13px;
    font-weight: 500;
    color: var(--login-primary);
    min-height: var(--login-touch-target-min);
    display: inline-flex;
    align-items: center;
    transition: color 0.2s ease;
}

.forgot-password:hover {
    color: var(--login-primary-hover);
    text-decoration: underline;
}

.forgot-password:focus-visible {
    outline: 2px solid var(--login-primary);
    outline-offset: 2px;
    border-radius: 4px;
}

/* 버튼 */
.btn {
    border: none;
    border-radius: var(--login-radius-pill);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 48px;
    padding: 14px 28px;
}

.btn-primary {
    background: var(--login-primary);
    color: #fff;
    width: 100%;
    box-shadow: 0 4px 12px var(--login-primary-shadow);
}

.btn-primary:hover {
    background: var(--login-primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px var(--login-primary-shadow);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-primary:focus-visible {
    outline: 3px solid rgba(99, 102, 241, 0.4);
    outline-offset: 2px;
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-icon {
    width: 18px;
    height: 18px;
}

/* 메시지 */
.message {
    padding: 10px 14px;
    border-radius: var(--login-radius);
    margin-bottom: 16px;
    display: none;
    text-align: center;
    font-size: 13px;
    font-weight: 500;
}

.message.is-visible {
    display: block;
}

.message.error {
    background-color: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

/* 로그인 성공 환영 모달 */
.login-welcome-modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.login-welcome-modal.is-open {
    display: flex;
}

.login-welcome-modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.55);
    backdrop-filter: blur(4px);
}

.login-welcome-modal__panel {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 360px;
    padding: 40px 32px 32px;
    background: var(--login-surface);
    border-radius: var(--login-radius-lg);
    box-shadow: 0 20px 48px rgba(15, 23, 42, 0.2);
    text-align: center;
}

.login-welcome-modal__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    margin: 0 auto 20px;
    border-radius: 50%;
    background: #ecfdf5;
    color: #059669;
}

.login-welcome-modal__icon svg {
    width: 28px;
    height: 28px;
}

.login-welcome-modal__title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--login-text);
    margin-bottom: 8px;
    line-height: 1.4;
}

.login-welcome-modal__desc {
    font-size: 14px;
    color: var(--login-text-muted);
    margin-bottom: 24px;
}

.login-welcome-modal__progress {
    height: 4px;
    background: var(--login-tab-bg);
    border-radius: var(--login-radius-pill);
    overflow: hidden;
}

.login-welcome-modal__progress-bar {
    display: block;
    width: 0;
    height: 100%;
    background: var(--login-primary);
    border-radius: var(--login-radius-pill);
    animation: login-welcome-progress 1.5s ease forwards;
}

@keyframes login-welcome-progress {
    from { width: 0; }
    to { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
    .login-welcome-modal__progress-bar {
        animation: none;
        width: 100%;
    }
}

.login-card__footer {
    margin-top: 24px;
    text-align: center;
    font-size: 12px;
    color: var(--login-text-muted);
}

/* ── 태블릿·모바일: 로그인 폼만 ── */
@media (max-width: 1024px) {
    body {
        padding: 20px;
    }

    .login-page {
        display: block;
        max-width: 440px;
        min-height: auto;
        box-shadow: 0 4px 20px rgba(15, 23, 42, 0.08);
    }

    .login-visual {
        display: none;
    }

    .login-main {
        padding: 40px 36px;
    }

    .login-card {
        max-width: none;
    }

    .login-card__logo {
        display: block;
    }
}

@media (max-width: 480px) {
    body {
        padding: 16px;
        align-items: flex-start;
        padding-top: max(24px, env(safe-area-inset-top));
    }

    .login-page {
        max-width: none;
    }

    .login-main {
        padding: 28px 22px;
    }

    .login-card__title {
        font-size: 1.125rem;
    }

    .login-tab span {
        font-size: 11px;
    }

    .login-tab__icon {
        display: none;
    }
}