:root {
    --navy-blue: #0A1D37;
    --aviation-blue: #235A9A;
    --technical-blue: #4C9BE8;
    --carbon-grey: #2B2B2B;
    --surface: rgba(255, 255, 255, 0.96);
    --surface-strong: #ffffff;
    --border-soft: rgba(10, 29, 55, 0.10);
    --text-main: var(--carbon-grey);
    --text-muted: rgba(43, 43, 43, 0.68);
    --success-bg: rgba(32, 122, 69, 0.10);
    --success-text: #17663a;
    --error-bg: rgba(179, 57, 57, 0.10);
    --error-text: #a02a2a;
    --shadow-soft: 0 30px 80px rgba(10, 29, 55, 0.18);
    --shadow-card: 0 24px 60px rgba(10, 29, 55, 0.14);
    --radius-xl: 32px;
    --radius-lg: 24px;
    --radius-md: 16px;
    --safe-area-top: env(safe-area-inset-top, 0px);
    --safe-area-right: env(safe-area-inset-right, 0px);
    --safe-area-bottom: env(safe-area-inset-bottom, 0px);
    --safe-area-left: env(safe-area-inset-left, 0px);
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    min-height: 100%;
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--text-main);
    background:
        radial-gradient(circle at top left, rgba(76, 155, 232, 0.24), transparent 24%),
        radial-gradient(circle at top right, rgba(35, 90, 154, 0.16), transparent 22%),
        radial-gradient(circle at bottom center, rgba(10, 29, 55, 0.08), transparent 30%),
        linear-gradient(135deg, #eff4fb 0%, #f9fbff 45%, #edf2fa 100%);
}

body.login-page {
    min-height: 100vh;
    padding-top: max(0px, var(--safe-area-top));
    padding-right: max(0px, var(--safe-area-right));
    padding-bottom: max(0px, var(--safe-area-bottom));
    padding-left: max(0px, var(--safe-area-left));
}

button,
input {
    font: inherit;
}

.login-shell {
    position: relative;
    min-height: 100vh;
    overflow: hidden;
}

.login-shell::before,
.login-shell::after {
    content: "";
    position: absolute;
    border-radius: 999px;
    filter: blur(12px);
    pointer-events: none;
}

.login-shell::before {
    width: 440px;
    height: 440px;
    top: -180px;
    right: -120px;
    background: rgba(76, 155, 232, 0.16);
}

.login-shell::after {
    width: 320px;
    height: 320px;
    bottom: -120px;
    left: -80px;
    background: rgba(35, 90, 154, 0.12);
}

.login-panel {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.login-card-wrap {
    width: min(100%, 560px);
}

.login-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    padding: 0.7rem 1rem;
    border: 1px solid rgba(35, 90, 154, 0.12);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.72);
    color: var(--aviation-blue);
    font-size: 0.82rem;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    box-shadow: 0 12px 30px rgba(10, 29, 55, 0.06);
    backdrop-filter: blur(10px);
}

.login-card {
    position: relative;
    width: 100%;
    padding: clamp(2rem, 4vw, 3rem);
    border: 1px solid rgba(255, 255, 255, 0.72);
    border-radius: var(--radius-xl);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, rgba(255, 255, 255, 0.94) 100%);
    box-shadow: var(--shadow-card);
    backdrop-filter: blur(16px);
}

.login-card__header,
.login-install-head {
    margin-bottom: 1.5rem;
}

.login-card__eyebrow {
    display: inline-flex;
    margin-bottom: 0.9rem;
    color: var(--aviation-blue);
    font-size: 0.83rem;
    font-weight: 800;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.login-card__header h1,
.login-install-head h1 {
    margin: 0;
    color: var(--navy-blue);
    font-size: clamp(2rem, 3vw, 2.8rem);
    line-height: 1.06;
    letter-spacing: -0.035em;
}

.login-card__header p,
.login-install-head p {
    margin: 0.95rem 0 0;
    color: var(--text-muted);
    font-size: 1rem;
    line-height: 1.65;
}

.login-alert {
    margin-bottom: 1.2rem;
    padding: 0.95rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    font-size: 0.95rem;
    font-weight: 700;
    line-height: 1.6;
}

.login-alert-success {
    background: var(--success-bg);
    border-color: rgba(32, 122, 69, 0.18);
    color: var(--success-text);
}

.login-alert-error {
    background: var(--error-bg);
    border-color: rgba(179, 57, 57, 0.18);
    color: var(--error-text);
}

.login-alert a {
    color: inherit;
}

.login-alert__cta {
    display: inline;
    margin-left: 0.45rem;
    color: var(--aviation-blue) !important;
    font-weight: 800;
    text-decoration: none;
    transition: color 0.18s ease;
}

.login-alert__cta:hover,
.login-alert__cta:active {
    color: var(--technical-blue) !important;
    text-decoration: none;
}

.login-alert__cta:focus-visible {
    outline: 2px solid rgba(76, 155, 232, 0.35);
    outline-offset: 2px;
}

.login-divider {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0.9rem 0 0.75rem;
    color: rgba(10, 29, 55, 0.54);
    font-size: 0.92rem;
    font-weight: 700;
    text-transform: lowercase;
}

.login-divider::before,
.login-divider::after {
    content: "";
    flex: 1 1 auto;
    height: 1px;
    background: rgba(10, 29, 55, 0.10);
}

.login-divider span {
    margin: 0 0.8rem;
}

.login-accordion {
    margin: 0;
    border: 0;
}

.login-accordion summary {
    list-style: none;
}

.login-accordion summary::-webkit-details-marker {
    display: none;
}

.login-accordion summary,
.login-accordion summary:focus,
.login-accordion summary:active {
    caret-color: transparent;
    user-select: none;
    -webkit-user-select: none;
}

.login-secondary--staff {
    position: relative;
    margin-top: 0;
    padding-right: 3.2rem;
    touch-action: manipulation;
    cursor: pointer;
    user-select: none;
    -webkit-user-select: none;
    caret-color: transparent;
}

.login-secondary--staff::after {
    content: "";
    position: absolute;
    top: 50%;
    right: 1.35rem;
    width: 0.7rem;
    height: 0.7rem;
    border-right: 2px solid rgba(10, 29, 55, 0.62);
    border-bottom: 2px solid rgba(10, 29, 55, 0.62);
    transform: translateY(-62%) rotate(45deg);
    transition: transform 0.22s ease, border-color 0.22s ease;
}

.login-accordion[open] .login-secondary--staff::after {
    transform: translateY(-38%) rotate(225deg);
    border-color: var(--aviation-blue);
}

.login-accordion__body {
    padding-top: 1rem;
}

.login-accordion__inner {
    padding-top: 1rem;
}

.login-accordion--animated .login-accordion__body {
    height: 0;
    padding-top: 0;
    opacity: 0;
    overflow: hidden;
    transition: height 0.30s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.22s ease;
    will-change: height, opacity;
}

.login-form--staff {
    margin-top: 0;
}

.login-form {
    display: grid;
    gap: 1rem;
}

.field-group {
    display: grid;
    gap: 0.55rem;
}

.field-group span {
    color: var(--navy-blue);
    font-size: 0.92rem;
    font-weight: 800;
    letter-spacing: 0.01em;
}

.field-group input {
    width: 100%;
    padding: 1rem 1.05rem;
    border: 1px solid var(--border-soft);
    border-radius: 16px;
    background: var(--surface-strong);
    color: var(--carbon-grey);
    outline: none;
    transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}

.field-group input::placeholder {
    color: rgba(43, 43, 43, 0.42);
}

.field-group input:hover {
    border-color: rgba(35, 90, 154, 0.28);
}

.field-group input:focus {
    border-color: var(--technical-blue);
    box-shadow: 0 0 0 4px rgba(76, 155, 232, 0.16);
    transform: translateY(-1px);
}

.login-submit,
.login-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-height: 54px;
    margin-top: 0.4rem;
    padding: 1rem 1.2rem;
    border-radius: 16px;
    font-size: 1rem;
    font-weight: 800;
    letter-spacing: 0.01em;
    cursor: pointer;
    transition: transform 0.18s ease, box-shadow 0.18s ease, filter 0.18s ease, background 0.18s ease;
    -webkit-appearance: none;
    appearance: none;
    text-decoration: none;
    touch-action: manipulation;
}

.login-submit,
.login-submit:link,
.login-submit:visited,
.login-submit:hover,
.login-submit:active,
.login-submit:focus-visible,
.login-secondary,
.login-secondary:hover,
.login-secondary:active,
.login-secondary:focus-visible {
    text-decoration: none;
}

.login-submit {
    border: 0;
    background: linear-gradient(135deg, var(--technical-blue) 0%, var(--aviation-blue) 52%, var(--navy-blue) 100%);
    color: #fff;
    box-shadow: 0 18px 36px rgba(35, 90, 154, 0.22);
}

.login-submit:hover {
    transform: translateY(-1px);
    box-shadow: 0 22px 40px rgba(35, 90, 154, 0.26);
    filter: saturate(1.05);
}

.login-submit:active {
    transform: translateY(0);
}

.login-submit:focus-visible,
.login-secondary:focus-visible {
    outline: 3px solid rgba(76, 155, 232, 0.30);
    outline-offset: 3px;
}

.login-submit[disabled] {
    cursor: default;
    box-shadow: none;
    opacity: 0.74;
}

.login-submit--oauth {
    margin-top: 0;
}

.login-secondary {
    border: 1px solid rgba(35, 90, 154, 0.14);
    background: rgba(255, 255, 255, 0.86);
    color: var(--navy-blue);
    box-shadow: 0 12px 24px rgba(10, 29, 55, 0.08);
}

[data-login-install-help],
.login-install-actions .login-secondary,
.login-install-actions button.login-secondary {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 100% !important;
    min-height: 54px;
    padding: 1rem 1.2rem !important;
    margin-top: 0 !important;
    border: 1px solid rgba(35, 90, 154, 0.18) !important;
    border-radius: 16px !important;
    background: rgba(255, 255, 255, 0.96) !important;
    color: var(--navy-blue) !important;
    font-size: 1rem !important;
    font-weight: 800 !important;
    line-height: 1.2 !important;
    text-align: center !important;
    box-shadow: 0 12px 24px rgba(10, 29, 55, 0.08) !important;
    cursor: pointer;
    -webkit-appearance: none !important;
    appearance: none !important;
    text-decoration: none !important;
}

[data-login-install-help]:hover,
.login-secondary:hover {
    transform: translateY(-1px);
    background: #fff;
}

[data-login-install-help]:active,
.login-secondary:active {
    transform: translateY(0);
}

.login-card--install {
    display: none;
}

[data-login-auth-card][hidden],
[data-login-install-card][hidden] {
    display: none !important;
}

html.pwa-gate-pending [data-login-auth-card],
html.pwa-gate-pending [data-login-install-card] {
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
}

.login-install-highlight {
    display: grid;
    gap: 0.35rem;
    padding: 1rem 1rem 1.05rem;
    border: 1px solid rgba(35, 90, 154, 0.12);
    border-radius: 18px;
    background: linear-gradient(135deg, rgba(76, 155, 232, 0.10) 0%, rgba(35, 90, 154, 0.06) 100%);
    color: var(--navy-blue);
}

.login-install-highlight strong {
    font-size: 0.95rem;
}

.login-install-highlight span {
    color: var(--text-muted);
    line-height: 1.55;
}

.login-install-actions {
    display: grid;
    gap: 0.85rem;
    margin-top: 1.4rem;
}

.login-install-status {
    margin-top: 1rem;
    padding: 1rem 1.05rem;
    border-radius: 18px;
    background: rgba(10, 29, 55, 0.05);
    color: var(--navy-blue);
    line-height: 1.6;
}

.login-install-steps {
    margin-top: 1rem;
    padding: 1.1rem 1.1rem 1.15rem;
    border: 1px solid rgba(35, 90, 154, 0.12);
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.86);
}

.login-install-steps h2 {
    margin: 0 0 0.75rem;
    color: var(--navy-blue);
    font-size: 1rem;
}

.login-install-steps ol {
    margin: 0;
    padding-left: 1.2rem;
    color: var(--carbon-grey);
    line-height: 1.65;
}

.login-install-steps li + li {
    margin-top: 0.45rem;
}

.login-install-footnote {
    margin-top: 1rem;
    color: var(--text-muted);
    font-size: 0.92rem;
    line-height: 1.6;
}

html.pwa-install-required .login-card--auth {
    display: none;
}

html.pwa-install-required .login-card--install {
    display: block;
}

html.pwa-login-allowed .login-card--auth {
    display: block;
}

html.pwa-login-allowed .login-card--install {
    display: none;
}

.login-install-actions > * {
    width: 100%;
}

.login-install-actions .login-secondary {
    margin-top: 0;
}

@media (max-width: 640px) {
    .login-panel {
        align-items: center;
        padding: 1rem;
    }

    html.pwa-login-allowed .login-panel {
        align-items: center;
        justify-content: center;
    }

    .login-card-wrap {
        width: 100%;
    }

    .login-chip {
        margin-bottom: 0.85rem;
        font-size: 0.76rem;
        letter-spacing: 0.12em;
    }

    .login-card {
        border-radius: 24px;
        padding: 1.5rem;
    }

    .login-card__header h1,
    .login-install-head h1 {
        font-size: 1.95rem;
    }

    .login-card__header p,
    .login-install-head p,
    .login-install-status,
    .login-install-footnote,
    .login-install-highlight span,
    .login-install-steps ol {
        font-size: 0.96rem;
        line-height: 1.6;
    }

    .login-divider {
        margin-top: 0.8rem;
    }

    .login-secondary--staff::after {
        right: 1.15rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
    }

    .login-submit,
    .login-secondary,
    .field-group input,
    .login-accordion__body,
    .login-secondary--staff::after,
    .login-alert__cta {
        transition: none !important;
    }
}

.login-alert__title {
    margin-bottom: 0.35rem;
    font-size: 1rem;
    font-weight: 900;
    color: inherit;
}

.login-alert__text {
    font-weight: 700;
}

.login-alert__actions {
    margin-top: 0.85rem;
}

.login-alert__button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: fit-content;
    padding: 0.7rem 0.95rem;
    border-radius: 999px;
    background: rgba(76, 155, 232, 0.14);
    border: 1px solid rgba(76, 155, 232, 0.28);
    color: var(--aviation-blue) !important;
    font-size: 0.86rem;
    font-weight: 900;
    line-height: 1;
    text-decoration: none;
    transition: transform 0.18s ease, background 0.18s ease, color 0.18s ease;
}

.login-alert__button:hover,
.login-alert__button:active {
    background: rgba(76, 155, 232, 0.2);
    color: var(--navy-blue) !important;
    text-decoration: none;
    transform: translateY(-1px);
}

.login-alert__button:focus-visible {
    outline: 2px solid rgba(76, 155, 232, 0.45);
    outline-offset: 3px;
}