/* ═══════════════════════════════════════════════════
   LOGIN — ImportControl
   Enterprise SaaS Split-Panel Layout
   ═══════════════════════════════════════════════════ */

.login-page,
.login-wrap {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: stretch;
    background: var(--surface-card);
    position: relative;
    overflow: hidden;
}

.login-split {
    display: flex;
    width: 100%;
    min-height: 100vh;
    min-height: 100dvh;
}

/* ── Left Panel — Branding ── */
.login-brand-panel {
    flex: 0 0 45%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(160deg, #0078D4 0%, #005A9E 50%, #004578 100%);
    position: relative;
    overflow: hidden;
    padding: var(--space-8);
}

.login-brand-panel::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.06) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.04) 0%, transparent 50%);
    pointer-events: none;
}

.login-brand-panel::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle, rgba(255, 255, 255, 0.07) 1px, transparent 1px);
    background-size: 32px 32px;
    pointer-events: none;
}

.login-brand-content {
    position: relative;
    z-index: 1;
    max-width: 420px;
    color: var(--text-inverse);
    animation: loginFadeSlideIn 600ms var(--ease-decelerate) both;
}

.login-brand-logo {
    width: 64px;
    height: 64px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: var(--text-inverse);
    margin-bottom: var(--space-6);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.login-brand-name {
    font-size: 36px;
    font-weight: var(--weight-bold);
    color: var(--text-inverse);
    margin: 0 0 var(--space-2);
    letter-spacing: -0.02em;
}

.login-brand-name span {
    color: rgba(255, 255, 255, 0.7);
    font-weight: var(--weight-regular);
}

.login-brand-tagline {
    font-size: var(--text-base);
    color: rgba(255, 255, 255, 0.7);
    margin: 0 0 var(--space-8);
    line-height: var(--leading-relaxed);
}

.login-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    margin-bottom: var(--space-8);
}

.login-feature {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.login-feature-icon {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.12);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-md);
    color: var(--text-inverse);
    flex-shrink: 0;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.login-feature-text { display: flex; flex-direction: column; gap: 2px; }

.login-feature-text strong {
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    color: var(--text-inverse);
}

.login-feature-text span {
    font-size: var(--text-xs);
    color: rgba(255, 255, 255, 0.6);
}

.login-brand-footer {
    font-size: var(--text-xs);
    color: rgba(255, 255, 255, 0.4);
    letter-spacing: 0.5px;
    text-transform: uppercase;
    padding-top: var(--space-4);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* ── Right Panel — Form ── */
.login-form-panel {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface-page);
    padding: var(--space-8);
    position: relative;
}

.login-form-panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--brand-primary), var(--brand-soft));
}

.login-form-wrapper {
    width: 100%;
    max-width: 400px;
    animation: loginFadeSlideIn 600ms var(--ease-decelerate) 100ms both;
}

.login-form-header { text-align: center; margin-bottom: var(--space-6); }

.login-form-logo-sm {
    width: 48px;
    height: 48px;
    background: var(--brand-wash);
    border-radius: var(--radius-lg);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-lg);
    color: var(--brand-primary);
    margin-bottom: var(--space-4);
}

.login-form-header h2 {
    font-size: var(--text-xl);
    font-weight: var(--weight-bold);
    color: var(--text-primary);
    margin: 0 0 var(--space-1);
}

.login-form-header p {
    font-size: var(--text-base);
    color: var(--text-muted);
    margin: 0;
}

.login-alert {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    background: var(--danger-bg);
    border: 1px solid rgba(209, 52, 56, 0.2);
    border-radius: var(--radius);
    margin-bottom: var(--space-4);
    font-size: var(--text-sm);
    color: var(--danger);
    font-weight: var(--weight-medium);
    animation: loginShake 400ms ease;
}

.login-alert i { font-size: var(--text-md); flex-shrink: 0; }

.login-form { display: flex; flex-direction: column; gap: var(--space-4); }

.login-field { display: flex; flex-direction: column; gap: var(--space-1-5); }

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

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

.login-input-icon {
    position: absolute;
    left: var(--space-3);
    font-size: var(--text-md);
    color: var(--text-muted);
    pointer-events: none;
    transition: color var(--transition);
    z-index: 1;
}

.login-input {
    width: 100%;
    height: 42px;
    padding: 0 var(--space-3) 0 var(--space-10);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-sm);
    background: var(--surface-card);
    font-family: var(--font-sans);
    font-size: var(--text-base);
    color: var(--text-primary);
    transition: border-color var(--transition), box-shadow var(--transition);
    outline: none;
}

.login-input::placeholder { color: var(--text-disabled); }
.login-input:hover { border-color: var(--border-strong); }

.login-input:focus {
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 2px rgba(0, 120, 212, 0.12);
}

.login-input-wrap:focus-within .login-input-icon { color: var(--brand-primary); }

.login-btn {
    width: 100%;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    background: var(--brand-primary);
    color: var(--text-inverse);
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: var(--text-base);
    font-weight: var(--weight-semibold);
    cursor: pointer;
    transition: background var(--transition), box-shadow var(--transition), transform var(--transition-fast);
    margin-top: var(--space-2);
    letter-spacing: 0.2px;
}

.login-btn:hover:not(:disabled) {
    background: var(--brand-hover);
    box-shadow: var(--shadow-sm);
    transform: translateY(-1px);
}

.login-btn:active:not(:disabled) { transform: translateY(0); box-shadow: var(--shadow-xs); }
.login-btn:disabled { opacity: 0.7; cursor: not-allowed; }

.login-btn-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-lg);
    line-height: 1;
}

.login-spinner {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--text-inverse);
    border-radius: 50%;
    animation: loginSpin 600ms linear infinite;
}

@keyframes loginSpin { to { transform: rotate(360deg); } }

@keyframes loginShake {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-6px); }
    40% { transform: translateX(6px); }
    60% { transform: translateX(-4px); }
    80% { transform: translateX(4px); }
}

@keyframes loginFadeSlideIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

.login-form-footer {
    text-align: center;
    margin-top: var(--space-6);
    padding-top: var(--space-4);
    border-top: 1px solid var(--border-subtle);
    font-size: var(--text-xs);
    color: var(--text-muted);
}

/* ── Responsive ── */
@media (max-width: 991px) {
    .login-split { flex-direction: column; }
    .login-brand-panel { flex: 0 0 auto; min-height: auto; padding: var(--space-6) var(--space-5); }
    .login-brand-content { max-width: 100%; text-align: center; }
    .login-brand-logo { margin: 0 auto var(--space-4); }
    .login-brand-name { font-size: 28px; }
    .login-features { display: none; }
    .login-brand-footer { display: none; }
    .login-form-panel { flex: 1; padding: var(--space-6) var(--space-5); }
}

@media (max-width: 575px) {
    .login-brand-panel { padding: var(--space-5) var(--space-4); }
    .login-brand-name { font-size: 24px; }
    .login-form-panel { padding: var(--space-5) var(--space-4); }
    .login-form-header h2 { font-size: var(--text-lg); }
}

/* ── App Loading Screen ── */
#app-loading {
    position: fixed;
    inset: 0;
    z-index: 99999;
    background: var(--surface-page);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.5s ease;
}

#app-loading.fade-out {
    opacity: 0;
    pointer-events: none;
}

.app-loading-content {
    text-align: center;
}

.app-loading-logo {
    width: 64px;
    height: 64px;
    background: var(--brand-wash);
    border-radius: var(--radius-lg);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: var(--brand-primary);
    margin-bottom: var(--space-4);
    animation: loadingPulse 1.5s ease-in-out infinite;
}

.app-loading-name {
    font-size: var(--text-lg);
    font-weight: var(--weight-bold);
    color: var(--brand-primary);
    margin-bottom: var(--space-5);
}

.app-loading-name span {
    color: var(--text-primary);
    font-weight: var(--weight-semibold);
}

.app-loading-bar {
    width: 120px;
    height: 3px;
    margin: 0 auto;
    background: var(--gray-100);
    border-radius: 2px;
    overflow: hidden;
}

.app-loading-bar::after {
    content: '';
    display: block;
    width: 40%;
    height: 100%;
    background: var(--brand-primary);
    border-radius: 2px;
    animation: loadingSlide 1s ease-in-out infinite;
}

@keyframes loadingPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes loadingSlide {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(350%); }
}

/* Legacy compat */
.login-card {
    background: var(--surface-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-subtle);
    padding: var(--space-8) var(--space-6) var(--space-6);
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 400px;
}

.login-logo {
    font-size: 28px;
    font-weight: var(--weight-semibold);
    color: var(--text-primary);
    text-align: center;
    margin-bottom: var(--space-1);
}

.login-logo span { color: var(--brand-primary); }

.login-sub {
    text-align: center;
    color: var(--text-muted);
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: var(--space-6);
}

.login-error {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    background: var(--danger-bg);
    border: 1px solid rgba(209, 52, 56, 0.2);
    color: var(--danger);
    padding: var(--space-2-5) var(--space-3);
    border-radius: var(--radius-sm);
    font-size: var(--text-sm);
    margin-bottom: var(--space-4);
}

.login-container {
    width: 100%;
    max-width: 380px;
    padding: var(--space-4);
    position: relative;
    z-index: 1;
}

.login-footer {
    text-align: center;
    margin-top: var(--space-5);
    font-size: var(--text-xs);
    color: var(--text-muted);
}