:root {
    --ink: #0b0f14;
    --ink-muted: #4b5563;
    --panel: rgba(255, 255, 255, 0.88);
    --panel-border: rgba(11, 15, 20, 0.1);
    --input-bg: rgba(255, 255, 255, 0.95);
    --input-ink: #0b0f14;
    --cta-bg: #86c6e8;
    --cta-ink: #0b0f14;
    --success: #99e2af;
    --danger: #f6b6b6;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: 'Montserrat', sans-serif;
    color: var(--ink);
    background:
        radial-gradient(circle at 30% 15%, rgba(134, 198, 232, 0.1), transparent 35%),
        radial-gradient(circle at 70% 85%, rgba(84, 135, 180, 0.1), transparent 36%),
        linear-gradient(180deg, rgba(245, 247, 251, 0.4), rgba(232, 238, 247, 0.46)),
        url('/static/assets/world-trade-center.png') center center / cover no-repeat fixed;
}

.login-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 28px;
    background: rgba(255, 255, 255, 0.94);
    border-bottom: 1px solid rgba(11, 15, 20, 0.08);
    backdrop-filter: blur(8px);
}

.login-nav__left,
.login-nav__right {
    color: var(--ink);
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: color 0.2s ease;
}

.login-nav__left:hover,
.login-nav__right:hover {
    color: #4aa6d6;
}

.login-nav__title {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    font-size: 34px;
    font-weight: 700;
    letter-spacing: 0.04em;
}

.login-page {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 84px 18px 24px;
}

.login-card {
    width: min(460px, 100%);
    background: var(--panel);
    border: 1px solid var(--panel-border);
    border-radius: 20px;
    padding: 34px 28px 28px;
    box-shadow: 0 18px 55px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(6px);
}

.login-card__eyebrow {
    margin: 0;
    color: var(--ink-muted);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

.login-card__title {
    margin: 8px 0 6px;
    font-weight: 700;
    font-size: 42px;
    line-height: 1.1;
}

.login-card__subtitle {
    margin: 0 0 18px;
    color: var(--ink-muted);
    font-size: 15px;
}

.login-alerts {
    margin-bottom: 14px;
}

.login-alert {
    margin: 0 0 8px;
    padding: 10px 12px;
    border-radius: 10px;
    font-size: 13px;
    font-weight: 600;
}

.login-alert--error {
    color: #3d1717;
    background: var(--danger);
}

.login-alert--success {
    color: #153321;
    background: var(--success);
}

.login-form {
    display: grid;
    gap: 10px;
}

.login-form__label {
    color: var(--ink-muted);
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    font-weight: 600;
}

.login-form__input {
    width: 100%;
    border: 1px solid rgba(11, 15, 20, 0.16);
    border-radius: 10px;
    padding: 12px 14px;
    font-size: 15px;
    color: var(--input-ink);
    background: var(--input-bg);
}

.login-form__input:focus {
    outline: 2px solid rgba(134, 198, 232, 0.9);
    outline-offset: 1px;
}

.login-form__forgot {
    margin-top: 2px;
    color: var(--ink-muted);
    text-decoration: none;
    font-size: 13px;
}

.login-form__forgot:hover {
    color: #4aa6d6;
}

.login-form__submit {
    margin-top: 10px;
    border: none;
    border-radius: 10px;
    padding: 13px 16px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--cta-ink);
    background: var(--cta-bg);
    cursor: pointer;
}

.login-form__submit:hover {
    filter: brightness(0.95);
}

@media (max-width: 768px) {
    .login-nav {
        display: grid;
        grid-template-columns: 72px auto 72px;
        align-items: center;
        gap: 8px;
        padding: 12px 16px;
    }

    .login-nav__left {
        justify-self: start;
        font-size: 13px;
        line-height: 1.1;
    }

    .login-nav__title {
        position: static;
        transform: none;
        justify-self: center;
        text-align: center;
        font-size: 12px;
        line-height: 1.15;
        letter-spacing: 0.03em;
        white-space: nowrap;
    }

    .login-nav__right {
        justify-self: end;
        visibility: hidden;
        width: 72px;
        font-size: 13px;
    }

    .login-page {
        padding: 76px 16px 20px;
    }

    .login-card {
        padding: 24px 18px 20px;
        border-radius: 18px;
    }

    .login-card__title {
        font-size: 30px;
    }

    .login-card__subtitle {
        font-size: 14px;
    }

    .login-form__input {
        padding: 11px 12px;
        font-size: 14px;
    }

    .login-form__submit {
        padding: 12px 14px;
        font-size: 12px;
    }
}