:root {
    --armada-primary: #12416d;
    --armada-primary-dark: #0d3156;
    --armada-light: #4bacff;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    background-color: #fafafa;
    color: rgba(0, 0, 0, 0.87);
}

/* ── Navbar ──────────────────────────────────────────── */
.navbar-armada {
    background-color: var(--armada-primary);
    box-shadow: 0 2px 4px -1px rgba(0,0,0,.2), 0 4px 5px rgba(0,0,0,.14), 0 1px 10px rgba(0,0,0,.12);
    min-height: 48px;
}
.navbar-armada .navbar-brand {
    color: #fff;
    font-weight: 700;
    font-size: 1rem;
    letter-spacing: 1px;
    user-select: none;
    padding-top: 0;
    padding-bottom: 0;
    text-transform: uppercase;
}
.navbar-logo {
    height: 2.1rem;
    width: auto;
    filter: brightness(0) invert(1);
}
.navbar-armada .nav-link {
    color: rgba(255,255,255,.8) !important;
    padding: 0.75rem 1rem;
    border-bottom: 2px solid transparent;
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.0536em;
    text-transform: uppercase;
    transition: color 200ms, border-color 200ms;
}
.navbar-armada .nav-link:hover,
.navbar-armada .nav-link.active {
    color: #fff !important;
    border-bottom-color: #fff;
}
.navbar-armada .navbar-toggler {
    border-color: rgba(255,255,255,.5);
}
.navbar-armada .navbar-toggler-icon {
    filter: invert(1);
}
/* Mobile: side indicator instead of underline (Bootstrap sm breakpoint) */
@media (max-width: 575.98px) {
    .navbar-armada .nav-link {
        border-bottom: none;
        border-left: 3px solid transparent;
        padding-left: 0.75rem;
    }
    .navbar-armada .nav-link.active {
        border-left-color: #fff;
    }
}

/* ── Containers ──────────────────────────────────────── */
.auth-container {
    max-width: 444px;
    margin: 2rem auto 0;
    padding: 2rem 2rem 1.25rem;
    background: #fff;
    border-radius: 8px;
    border-top: 3px solid var(--armada-primary);
    box-shadow: 0 2px 1px -1px rgba(0,0,0,.2), 0 1px 1px rgba(0,0,0,.14), 0 1px 3px rgba(0,0,0,.12);
}
/* Card already has top padding — remove the extra gap from the first divider */
.auth-container > .section-divider:first-child {
    margin-top: 0;
}
@media (max-width: 480px) {
    .auth-container {
        margin-left: 0.75rem;
        margin-right: 0.75rem;
        padding: 1.5rem 1.25rem 1rem;
    }
}
.about-container {
    max-width: 600px;
    margin: 2rem auto;
    padding: 0 1rem;
}

/* ── Section divider (MUI Divider with label) ────────── */
.section-divider {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 1rem 0 0.75rem;
    width: 100%;
}
.section-divider::before,
.section-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: rgba(0,0,0,.12);
}
.section-divider span {
    color: var(--armada-primary);
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    white-space: nowrap;
}

/* ── Form floating (MUI-like) ────────────────────────── */
.form-floating > .form-control:focus {
    border-color: var(--armada-primary);
    box-shadow: 0 0 0 0.15rem rgba(18, 65, 109, .25);
}
.form-floating > .form-control:focus ~ label {
    color: var(--armada-primary);
    opacity: 1;
}
.form-floating > .form-control.is-invalid {
    border-color: #d32f2f;
}
.form-floating > .form-control.is-invalid:focus {
    border-color: #d32f2f;
    box-shadow: 0 0 0 0.15rem rgba(211, 47, 47, .25);
}
.form-floating > .form-control.is-invalid ~ label {
    color: #d32f2f;
}

/* ── Field helper / error text ───────────────────────── */
.field-helper {
    font-size: 0.75rem;
    color: rgba(0,0,0,.6);
    margin-top: 0.2rem;
    padding-left: 0.75rem;
    min-height: 1.1em;
}
.field-helper.text-danger {
    color: #d32f2f !important;
}

/* ── Primary button (MUI contained) ─────────────────── */
.btn-armada {
    background-color: var(--armada-primary);
    border-color: var(--armada-primary);
    color: #fff;
    font-weight: 500;
    font-size: 0.875rem;
    letter-spacing: 0.0893em;
    text-transform: uppercase;
    min-height: 44px;
    border-radius: 4px;
    box-shadow: 0 3px 1px -2px rgba(0,0,0,.2), 0 2px 2px rgba(0,0,0,.14), 0 1px 5px rgba(0,0,0,.12);
    transition: background-color 250ms cubic-bezier(.4,0,.2,1), box-shadow 250ms cubic-bezier(.4,0,.2,1);
}
.btn-armada:hover {
    background-color: var(--armada-primary-dark);
    border-color: var(--armada-primary-dark);
    color: #fff;
    box-shadow: 0 2px 4px -1px rgba(0,0,0,.2), 0 4px 5px rgba(0,0,0,.14), 0 1px 10px rgba(0,0,0,.12);
}
.btn-armada:focus,
.btn-armada:active {
    background-color: var(--armada-primary-dark);
    border-color: var(--armada-primary-dark);
    color: #fff;
    box-shadow: 0 0 0 0.2rem rgba(18, 65, 109, .45);
}
.btn-armada:disabled {
    background-color: rgba(0,0,0,.12);
    border-color: transparent;
    color: rgba(0,0,0,.38);
    box-shadow: none;
}

/* ── Spinner inside button ───────────────────────────── */
.spinner-sm {
    width: 1.1rem;
    height: 1.1rem;
    margin-right: 0.4rem;
    vertical-align: -0.2em;
}

/* ── Links ───────────────────────────────────────────── */
.link-armada {
    color: var(--armada-primary);
    font-size: 0.875rem;
    text-decoration: none;
}
.link-armada:hover {
    color: var(--armada-light);
    text-decoration: underline;
}

/* ── Success card (MUI Paper with green top border) ──── */
.success-card {
    border-top: 4px solid #2e7d32;
    border-radius: 4px;
    padding: 2rem;
    background: #fff;
    box-shadow: 0 2px 1px -1px rgba(0,0,0,.2), 0 1px 1px rgba(0,0,0,.14), 0 1px 3px rgba(0,0,0,.12);
    margin-top: 1rem;
}

/* ── Logo bar ────────────────────────────────────────── */
.logo-bar {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: nowrap;
    margin-top: 2.5rem;
    margin-bottom: 0.5rem;
}
.logo-bar a {
    display: contents;
}
.logo-bar img {
    height: 2.5rem;
    max-width: 30%;
    object-fit: contain;
}

/* ── Copyright ───────────────────────────────────────── */
.copyright {
    text-align: center;
    font-size: 0.75rem;
    color: rgba(0,0,0,.6);
    margin-bottom: 2rem;
}
.copyright a {
    color: inherit;
}