:root {
    --bd-navy: #0b2d52;
    --bd-navy-deep: #071b33;
    --bd-blue: #1a73c1;
    --bd-sky: #29abe2;
    --bd-leaf: #5da330;
    --bd-gold: #b8863b;
    --bd-gold-soft: #e9c988;
    --bd-ink: #12203a;
    --bd-gray-700: #4a5568;
    --bd-gray-400: #94a3b8;
    --bd-gray-200: #e3e8f0;
    --bd-gray-100: #f4f6fa;
    --bd-paper: #ffffff;
    --bd-bg: #eef2f8;
    --bd-danger: #b3392a;
    --font-display: 'Fraunces', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --radius: 16px;
    --shadow-lg: 0 30px 70px -16px rgba(7,27,51,.28), 0 10px 26px -10px rgba(7,27,51,.12);
    --shadow-card-rest: 0 1px 0 rgba(255,255,255,.6) inset;
}

* {
    box-sizing: border-box;
}

html, body {
    height: 100%;
    margin: 0;
    font-family: var(--font-body);
    background: var(--bd-bg);
    color: var(--bd-ink);
    -webkit-font-smoothing: antialiased;
}

/* ---------------------------------------------
   Stage: quiet institutional backdrop.
   Two faint corner arcs (navy + leaf) instead of
   a generic radial-gradient blob wash.
--------------------------------------------- */
main {
    min-height: 100vh;
    display: flex;
    position: relative;
    overflow: hidden;
    background: radial-gradient(900px 600px at 8% 12%, rgba(26,115,193,.10), transparent 60%), radial-gradient(700px 500px at 95% 90%, rgba(93,163,48,.08), transparent 60%), var(--bd-bg);
}

    main::before,
    main::after {
        content: "";
        position: absolute;
        border-radius: 50%;
        pointer-events: none;
    }

    main::before {
        top: -180px;
        right: -180px;
        width: 460px;
        height: 460px;
        background: radial-gradient(circle at 30% 30%, rgba(41,171,226,.18), rgba(41,171,226,0) 65%);
    }

    main::after {
        bottom: -220px;
        left: -160px;
        width: 480px;
        height: 480px;
        border: 1px solid rgba(26,115,193,.08);
        background: radial-gradient( circle at 60% 60%, rgba(26,115,193,.05), rgba(26,115,193,0) 70% );
    }

/* Faint dot-grid texture */
/*main {
    background-image: radial-gradient(rgba(26,115,193,.05) 1px, transparent 1px), radial-gradient(1100px 620px at 100% 0%, rgba(26,115,193,.07), transparent 55%), radial-gradient(900px 560px at 0% 100%, rgba(93,163,48,.06), transparent 55%), var(--bd-bg);
    background-size: 22px 22px, auto, auto, auto;
    background-position: -4px -4px, 0 0, 0 0, 0 0;
}
*/
/* ---------------------------------------------
   Card: brass masthead bar is the signature
   element. Everything else stays disciplined.
--------------------------------------------- */
.login-shell {
    margin: auto;
    width: 100%;
    max-width: 420px;
    background: var(--bd-paper);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg), var(--shadow-card-rest);
    overflow: hidden;
    border: 1px solid rgba(11,45,82,.07);
    position: relative;
}

    .login-shell::before {
        content: "";
        display: block;
        height: 3px;
        width: 100%;
        background: linear-gradient(90deg, var(--bd-navy) 0%, var(--bd-blue) 50%, var(--bd-navy) 100%);
    }

.card-logo {
    display: flex;
    justify-content: center;
    padding: 40px 0 8px;
}

    .card-logo img {
        height: 60px;
        width: auto;
    }

.login-form-panel {
    padding: 16px 44px 44px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-align: center;
}

/* Eyebrow flanked by hairline rules — a small masthead motif
   that ties back to the top brass bar without repeating it. */
.panel-eyebrow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 700;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: var(--bd-blue);
    margin: 0 0 14px;
}

    .panel-eyebrow::before,
    .panel-eyebrow::after {
        content: "";
        height: 1px;
        width: 26px;
        background: linear-gradient(90deg, transparent, rgba(26, 115, 193, 0.55));
    }

    .panel-eyebrow::after {
        background: linear-gradient(90deg, rgba(26, 115, 193, 0.55), transparent);
    }

.panel-title {
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 600;
    color: var(--bd-navy-deep);
    margin: 0 0 8px;
    letter-spacing: -.01em;
    line-height: 1.2;
}

.panel-subtitle {
    font-size: 14px;
    color: var(--bd-gray-700);
    margin: 0 0 32px;
    line-height: 1.5;
}

.field-group {
    margin-bottom: 20px;
    text-align: left;
}

    .field-group label {
        display: block;
        font-size: 12.5px;
        font-weight: 600;
        letter-spacing: .01em;
        color: var(--bd-ink);
        margin-bottom: 7px;
    }

.field-control {
    position: relative;
}

    .field-control input.form-control {
        width: 100%;
        height: 46px;
        padding: 0 14px 0 42px;
        border: 1.5px solid var(--bd-gray-200);
        border-radius: 10px;
        background: var(--bd-gray-100);
        font-size: 14.5px;
        font-family: var(--font-body);
        color: var(--bd-ink);
        transition: border-color .15s ease, background .15s ease, box-shadow .15s ease;
    }

    .field-control i {
        position: absolute;
        left: 14px;
        top: 23px;
        transform: translateY(-50%);
        font-size: 16px;
        color: var(--bd-gray-400);
        pointer-events: none;
        transition: color .15s ease;
    }

    .field-control input.form-control::placeholder {
        color: var(--bd-gray-400);
    }

    /* Brass focus state instead of the expected blue ring —
   distinct, but still calm and on-brand. */
    .field-control input.form-control:focus {
        outline: none;
        background: #fff;
        border-color: var(--bd-blue);
        box-shadow: 0 0 0 4px rgba(184,134,59,.14);
    }

        .field-control input.form-control:focus + i,
        .field-control:focus-within i {
            color: var(--bd-blue);
        }

    /* Subtle underline-grow beneath focused fields, echoing the
   masthead rule at the top of the card. */
    /*.field-control::after {
        content: "";
        position: absolute;
        left: 42px;
        right: 14px;
        bottom: -1px;
        height: 2px;
        background: var(--bd-blue);
        transform: scaleX(0);
        transform-origin: left;
        transition: transform .2s ease;
        border-radius: 2px;
    }*/

    .field-control:focus-within::after {
        transform: scaleX(1);
    }

    .was-validated .field-control input.form-control:invalid,
    .field-control input.form-control.is-invalid {
        border-color: var(--bd-danger);
        background: #fdf2f1;
    }

        .was-validated .field-control input.form-control:invalid ~ i,
        .field-control input.form-control.is-invalid ~ i {
            color: var(--bd-danger);
        }

    .field-control input.form-control:invalid:focus {
        box-shadow: 0 0 0 4px rgba(179,57,42,.13);
    }

.invalid-feedback {
    display: none;
    font-size: 12.5px;
    color: var(--bd-danger);
    margin-top: 6px;
}

.was-validated .form-control:invalid ~ .invalid-feedback,
.form-control.is-invalid ~ .invalid-feedback {
    display: block;
}

/* Primary action: deep navy body with a brass top-edge
   highlight, rather than the expected blue-gradient pill. */
.btn-login {
    width: 100%;
    height: 48px;
    margin-top: 10px;
    border: none;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--bd-blue), var(--bd-navy));
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: .01em;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: transform .12s ease, box-shadow .12s ease, filter .12s ease;
    box-shadow: 0 10px 24px -6px rgba(26,115,193,.45);
}

    .btn-login:hover {
        filter: brightness(1.05);
        box-shadow: 0 14px 28px -6px rgba(26,115,193,.55);
    }

    .btn-login:active {
        transform: translateY(1px);
    }

    .btn-login:focus-visible {
        outline: 3px solid rgba(26,115,193,.35);
        outline-offset: 2px;
    }


.text-danger.mt-4 {
    font-size: 13px;
    margin-top: 18px !important;
    color: var(--bd-danger) !important;
}

    .text-danger.mt-4 ul {
        list-style: none;
        padding: 0;
        margin: 0;
        text-align: left;
    }

.form-footnote {
    margin-top: 28px;
    font-size: 12px;
    letter-spacing: .01em;
    color: var(--bd-gray-400);
    text-align: center;
}

@media (max-width: 460px) {
    .login-shell {
        max-width: 100%;
        margin: 16px;
        border-radius: 14px;
    }

    .login-form-panel {
        padding: 12px 28px 32px;
    }

    .panel-title {
        font-size: 24px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .field-control::after,
    .btn-login {
        transition: none;
    }
}