/**
 * TFiber Login — Modern SaaS auth page (Bootstrap 5.3 base + minimal custom layer)
 * Scope: body.auth-login-body
 */

:root {
    --login-primary: #0284c7;
    --login-primary-hover: #0369a1;
    --login-primary-rgb: 2, 132, 199;
    --login-accent: #6366f1;
    --login-surface: #ffffff;
    --login-muted: #64748b;
    --login-border: #e2e8f0;
    --login-radius: 0.75rem;
    --login-shadow: 0 20px 45px rgba(15, 23, 42, 0.08);
}

.auth-login-body {
    margin: 0;
    min-height: 100vh;
    background: #f8fafc;
    color: #0f172a;
    -webkit-font-smoothing: antialiased;
}

/* Bootstrap theme overrides */
.auth-login-body .btn-primary {
    --bs-btn-bg: var(--login-primary);
    --bs-btn-border-color: var(--login-primary);
    --bs-btn-hover-bg: var(--login-primary-hover);
    --bs-btn-hover-border-color: var(--login-primary-hover);
    --bs-btn-active-bg: var(--login-primary-hover);
    --bs-btn-active-border-color: var(--login-primary-hover);
    --bs-btn-focus-shadow-rgb: var(--login-primary-rgb);
}

.auth-login-body .form-check-input:checked {
    background-color: var(--login-primary);
    border-color: var(--login-primary);
}

.auth-login-body .form-control:focus,
.auth-login-body .form-check-input:focus {
    border-color: var(--login-primary);
    box-shadow: 0 0 0 0.2rem rgba(var(--login-primary-rgb), 0.15);
}

/* Shell */
.login-shell {
    background:
        radial-gradient(circle at 100% 0%, rgba(2, 132, 199, 0.06), transparent 45%),
        radial-gradient(circle at 0% 100%, rgba(99, 102, 241, 0.05), transparent 40%),
        #f8fafc;
}

.login-form-panel {
    background: var(--login-surface);
    min-height: 100vh;
}

.login-form-wrap {
    max-width: 420px;
}

.login-form-topbar {
    padding-top: 3.75rem !important;
}

/* ── Interactive Hero / Brand panel (desktop) ── */
.login-hero {
    position: relative;
    overflow: hidden;
    color: #f8fafc;
    padding: clamp(1.75rem, 3vw, 2.75rem);
    display: flex;
    flex-direction: column;
}

.login-hero__bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 20% 10%, rgba(56, 189, 248, 0.28), transparent 55%),
        radial-gradient(ellipse 70% 50% at 85% 85%, rgba(99, 102, 241, 0.22), transparent 50%),
        linear-gradient(155deg, #060b14 0%, #0c1528 42%, #0f172a 100%);
    z-index: 0;
}

.login-hero__glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.55;
    pointer-events: none;
    z-index: 0;
    animation: loginHeroGlow 9s ease-in-out infinite;
}

.login-hero__glow--a {
    width: 280px;
    height: 280px;
    background: rgba(56, 189, 248, 0.35);
    inset-block-start: 8%;
    inset-inline-start: -8%;
}

.login-hero__glow--b {
    width: 320px;
    height: 320px;
    background: rgba(99, 102, 241, 0.28);
    inset-block-end: 5%;
    inset-inline-end: -10%;
    animation-delay: -4.5s;
}

.login-hero__grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(148, 163, 184, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(148, 163, 184, 0.05) 1px, transparent 1px);
    background-size: 32px 32px;
    mask-image: radial-gradient(ellipse 90% 80% at 50% 40%, #000 20%, transparent 75%);
    pointer-events: none;
    z-index: 0;
}

.login-hero__content {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
}

.login-hero__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.75rem;
}

.login-hero__logo {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--login-primary), var(--login-accent));
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.25rem;
    box-shadow: 0 8px 24px rgba(56, 189, 248, 0.35);
    flex-shrink: 0;
}

.login-hero__brand {
    font-size: 1.05rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: #fff;
}

.login-hero__tag {
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: #94a3b8;
}

.login-hero__title {
    font-size: clamp(1.65rem, 2.4vw, 2.15rem);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.03em;
    margin: 0 0 0.65rem;
    max-width: 22rem;
}

.login-hero__lead {
    font-size: 0.92rem;
    line-height: 1.6;
    color: #94a3b8;
    margin: 0;
    max-width: 24rem;
}

.login-hero__copy {
    margin-bottom: 1.5rem;
}

.login-hero__stage {
    position: relative;
    flex: 1;
    min-height: 300px;
    margin-top: auto;
}

.login-hero__network {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0.85;
}

.login-hero__net-path {
    stroke-dasharray: 8 10;
    animation: loginNetFlow 14s linear infinite;
}

.login-hero__net-path--delay {
    animation-delay: -4.5s;
    opacity: 0.7;
}

.login-hero__net-path--delay2 {
    animation-delay: -9s;
    opacity: 0.55;
}

.login-hero__node--pulse {
    animation: loginNodePulse 3s ease-in-out infinite;
}

.login-hero__node--hub {
    fill: #38bdf8;
    filter: drop-shadow(0 0 8px rgba(56, 189, 248, 0.8));
}

.login-hero__signal {
    transform-origin: 300px 90px;
    animation: loginSignalRing 3.5s ease-out infinite;
    opacity: 0;
}

.login-hero__signal--2 {
    animation-delay: 1.2s;
}

.login-hero__cards {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.login-hero-card {
    position: absolute;
    display: flex;
    align-items: flex-start;
    gap: 0.65rem;
    padding: 0.65rem 0.8rem;
    max-width: 168px;
    background: rgba(15, 23, 42, 0.55);
    border: 1px solid rgba(148, 163, 184, 0.14);
    border-radius: 14px;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.25);
    pointer-events: auto;
    transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
    animation: loginCardFloat 7s ease-in-out infinite;
}

.login-hero-card:hover {
    animation-play-state: paused;
    transform: translateY(-4px) scale(1.02);
    border-color: rgba(56, 189, 248, 0.35);
    box-shadow: 0 16px 40px rgba(56, 189, 248, 0.12);
}

.login-hero-card__icon {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    flex-shrink: 0;
    background: rgba(56, 189, 248, 0.12);
    color: #38bdf8;
}

.login-hero-card__title {
    margin: 0;
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: -0.01em;
    color: #f8fafc;
    line-height: 1.25;
}

.login-hero-card__desc {
    margin: 0.2rem 0 0;
    font-size: 0.62rem;
    font-weight: 500;
    color: #94a3b8;
    line-height: 1.35;
}

.login-hero-card--pos-1 {
    inset-block-start: 2%;
    inset-inline-start: 0;
    animation-delay: 0s;
}

.login-hero-card--pos-2 {
    inset-block-start: 2%;
    inset-inline-end: 0;
    animation-delay: -1.2s;
}

.login-hero-card--pos-2 .login-hero-card__icon,
.login-hero-card--secure .login-hero-card__icon {
    background: rgba(16, 185, 129, 0.12);
    color: #34d399;
}

.login-hero-card--pos-3 {
    inset-block-start: 36%;
    inset-inline-start: 4%;
    animation-delay: -2.4s;
}

.login-hero-card--pos-4 {
    inset-block-start: 36%;
    inset-inline-end: 2%;
    animation-delay: -3.6s;
}

.login-hero-card--pos-4 .login-hero-card__icon,
.login-hero-card--network .login-hero-card__icon {
    background: rgba(99, 102, 241, 0.15);
    color: #a5b4fc;
}

.login-hero-card--pos-5 {
    inset-block-end: 4%;
    inset-inline-start: 0;
    animation-delay: -4.8s;
}

.login-hero-card--pos-5 .login-hero-card__icon,
.login-hero-card--support .login-hero-card__icon {
    background: rgba(245, 158, 11, 0.12);
    color: #fbbf24;
}

.login-hero-card--pos-6 {
    inset-block-end: 4%;
    inset-inline-end: 0;
    animation-delay: -6s;
}

.login-hero-card--pos-6 .login-hero-card__icon,
.login-hero-card--ops .login-hero-card__icon {
    background: rgba(236, 72, 153, 0.12);
    color: #f472b6;
}

/* Mobile compact hero strip */
.login-hero-mobile {
    display: none;
}

.login-hero-mobile__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    flex-wrap: wrap;
    padding: 0.65rem 1rem;
    margin: 0 1rem 0.5rem;
    border-radius: 12px;
    background: linear-gradient(135deg, #0c1528, #111827);
    border: 1px solid rgba(56, 189, 248, 0.15);
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.12);
}

.login-hero-mobile__brand {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.8rem;
    font-weight: 800;
    color: #f8fafc;
}

.login-hero-mobile__brand i {
    color: #38bdf8;
}

.login-hero-mobile__tags {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    flex-wrap: wrap;
}

.login-hero-mobile__tag {
    font-size: 0.62rem;
    font-weight: 700;
    color: #cbd5e1;
    padding: 0.2rem 0.5rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(148, 163, 184, 0.12);
}

/* Animations */
@keyframes loginHeroGlow {
    0%, 100% { opacity: 0.45; transform: scale(1); }
    50% { opacity: 0.75; transform: scale(1.08); }
}

@keyframes loginNetFlow {
    to { stroke-dashoffset: -180; }
}

@keyframes loginNodePulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.55; }
}

@keyframes loginSignalRing {
    0% { transform: scale(0.6); opacity: 0.7; }
    100% { transform: scale(1.6); opacity: 0; }
}

@keyframes loginCardFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}

@media (prefers-reduced-motion: reduce) {
    .login-hero__glow,
    .login-hero__net-path,
    .login-hero__node--pulse,
    .login-hero__signal,
    .login-hero-card {
        animation: none !important;
    }

    .login-hero-card:hover {
        transform: none;
    }

    .login-lang-menu {
        animation: none;
    }

    .login-lang-trigger:hover,
    .login-lang-trigger:focus,
    .login-lang-trigger.show {
        transform: none;
    }
}

/* Small logo in form topbar (mobile) */
.login-brand-logo {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--login-primary), var(--login-accent));
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.25rem;
    box-shadow: 0 8px 20px rgba(2, 132, 199, 0.35);
    flex-shrink: 0;
}

.login-brand-logo--sm {
    width: 36px;
    height: 36px;
    font-size: 1rem;
}

.login-brand-name {
    font-size: 1.05rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: #0f172a;
}

/* Form area */
.login-kicker {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--login-primary);
    margin: 0;
}

.login-title {
    font-weight: 800;
    letter-spacing: -0.02em;
    color: #0f172a;
}

.login-subtitle {
    font-size: 0.9rem;
}

.login-input-group .input-group-text {
    background: #f8fafc;
    border-color: var(--login-border);
    color: var(--login-muted);
}

.login-input-group .form-control {
    border-color: var(--login-border);
    background: #f8fafc;
}

.login-input-group .form-control:hover {
    border-color: #cbd5e1;
}

.login-input-group .form-control.is-invalid {
    background: #fff;
}

.login-toggle-password {
    border-color: var(--login-border);
    color: var(--login-muted);
}

.login-toggle-password:hover,
.login-toggle-password:focus {
    background: #f1f5f9;
    color: #0f172a;
}

.login-forgot-link {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--login-primary);
    text-decoration: none;
}

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

.login-submit-btn {
    font-weight: 700;
    border-radius: var(--login-radius);
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.login-submit-btn:not(:disabled):hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 20px rgba(var(--login-primary-rgb), 0.25);
}

.login-submit-btn:disabled {
    opacity: 0.85;
    cursor: wait;
}

.login-submit-btn.is-loading .login-submit-label {
    display: none !important;
}

.login-submit-btn.is-loading .login-submit-loading {
    display: inline-flex !important;
}

.login-footer-link {
    color: var(--login-muted);
    text-decoration: none;
    font-weight: 600;
}

.login-footer-link:hover {
    color: #0f172a;
    text-decoration: underline;
}

/* Floating language switcher */
.login-lang-float {
    position: fixed;
    top: 1rem;
    inset-inline-end: 1rem;
    z-index: 1050;
}

.login-lang-trigger {
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.45rem 0.85rem 0.45rem 0.55rem;
    border: 1px solid var(--login-border);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 4px 18px rgba(15, 23, 42, 0.08);
    color: var(--login-muted);
    font-size: 0.8125rem;
    font-weight: 600;
    line-height: 1.2;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease, color 0.2s ease;
}

.login-lang-trigger::after {
    margin-inline-start: 0.15rem;
    vertical-align: middle;
    opacity: 0.55;
}

.login-lang-trigger:hover,
.login-lang-trigger:focus,
.login-lang-trigger.show {
    border-color: rgba(2, 132, 199, 0.35);
    box-shadow: 0 8px 24px rgba(2, 132, 199, 0.12);
    color: #0f172a;
    transform: translateY(-1px);
}

.login-lang-trigger:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.18), 0 8px 24px rgba(2, 132, 199, 0.1);
}

.login-lang-trigger__icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(2, 132, 199, 0.12), rgba(99, 102, 241, 0.1));
    color: var(--login-primary);
    font-size: 1rem;
    flex-shrink: 0;
}

.login-lang-trigger__text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: start;
    min-width: 0;
}

.login-lang-trigger__label {
    font-size: 0.62rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--login-muted);
    line-height: 1.2;
}

.login-lang-trigger__value {
    font-size: 0.8125rem;
    font-weight: 700;
    color: #0f172a;
    line-height: 1.25;
    max-width: 7rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.login-lang-menu {
    min-width: 196px;
    padding: 0.4rem;
    margin-top: 0.45rem !important;
    border-radius: 14px !important;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    animation: loginLangMenuIn 0.18s ease-out;
}

.login-lang-menu.show {
    display: block;
}

.login-lang-option {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.55rem 0.65rem;
    border-radius: 10px;
    font-size: 0.875rem;
    font-weight: 600;
    color: #334155;
    transition: background-color 0.15s ease, color 0.15s ease;
}

.login-lang-option:hover,
.login-lang-option:focus {
    background: #f1f5f9;
    color: #0f172a;
}

.login-lang-option.active,
.login-lang-option.active:hover {
    background: rgba(2, 132, 199, 0.08);
    color: var(--login-primary);
    cursor: default;
}

.login-lang-option__main {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    min-width: 0;
}

.login-lang-option__check {
    font-size: 0.95rem;
    flex-shrink: 0;
}

.login-lang-option__code {
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    color: var(--login-muted);
    text-transform: uppercase;
    flex-shrink: 0;
}

.login-lang-option.active .login-lang-option__code {
    color: var(--login-primary);
}

@keyframes loginLangMenuIn {
    from {
        opacity: 0;
        transform: translateY(-6px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Mobile */
@media (max-width: 991.98px) {
    .login-hero-mobile {
        display: block;
    }

    .login-form-panel {
        min-height: auto;
    }

    .login-form-wrap {
        max-width: 480px;
    }
}

@media (max-width: 575.98px) {
    .login-lang-float {
        top: 0.75rem;
        inset-inline-end: 0.75rem;
    }

    .login-lang-trigger {
        padding: 0.4rem 0.65rem 0.4rem 0.45rem;
        gap: 0.5rem;
    }

    .login-lang-trigger__label {
        display: none;
    }

    .login-lang-trigger__value {
        max-width: 5.5rem;
        font-size: 0.75rem;
    }

    .login-form-topbar {
        padding-inline: 1rem !important;
        padding-top: 3.25rem !important;
    }
}