body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: linear-gradient(180deg, #f5f7fb 0%, #eef2f7 100%);
    color: #163042;
}

.page-shell {
    padding: 48px 20px 72px;
}

.form-card {
    max-width: 980px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(22, 48, 66, 0.08);
    border-radius: 24px;
    box-shadow: 0 18px 50px rgba(22, 48, 66, 0.12);
    padding: 32px;
    backdrop-filter: blur(8px);
}

.eyebrow {
    margin: 0 0 8px;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.78rem;
    font-weight: 700;
    color: #4b6b7d;
}

.form-card h1,
.form-section h2 {
    margin: 0;
}

.form-intro,
.form-section p {
    margin: 8px 0 0;
    color: #506776;
    line-height: 1.5;
}

.form-notice {
    margin-top: 22px;
    padding: 14px 16px;
    border-radius: 14px;
    font-weight: 700;
}

.form-notice.success {
    background: #e6f6ed;
    color: #1f6a3a;
    border: 1px solid #b9e3c8;
}

.form-notice.error {
    background: #fdecec;
    color: #9b1c1c;
    border: 1px solid #f2b6b6;
}

.train-number-card {
    margin-top: 18px;
    display: flex;
    gap: 12px;
    align-items: center;
}

.train-number-card .train-number {
    font-size: 1.25rem;
    font-weight: 800;
    background: linear-gradient(90deg, #fffefc, #f3fbff);
    padding: 12px 16px;
    border-radius: 12px;
    border: 1px solid rgba(22, 48, 66, 0.06);
}

.train-number-card .secondary-button {
    padding: 10px 14px;
}

.route-form {
    margin-top: 28px;
    display: grid;
    gap: 24px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

label {
    display: grid;
    gap: 8px;
    font-weight: 600;
    color: #234055;
}

label span {
    font-size: 0.95rem;
}

input,
select,
textarea {
    width: 100%;
    box-sizing: border-box;
    border: 1px solid #c7d4dd;
    border-radius: 14px;
    padding: 14px 16px;
    font: inherit;
    background: #fff;
    color: #163042;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: #5b8599;
    box-shadow: 0 0 0 4px rgba(91, 133, 153, 0.16);
}

.form-section {
    display: grid;
    gap: 16px;
}

.section-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.tfz-rows {
    display: grid;
    gap: 12px;
}

.tfz-row {
    display: grid;
    grid-template-columns: 140px 1fr auto;
    gap: 12px;
    align-items: end;
    padding: 16px;
    border: 1px solid #dbe4ea;
    border-radius: 18px;
    background: #f9fbfc;
}

.primary-button,
.secondary-button,
.icon-button {
    border: 0;
    border-radius: 999px;
    padding: 14px 20px;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.primary-button {
    background: #163042;
    color: #fff;
    box-shadow: 0 10px 22px rgba(22, 48, 66, 0.18);
}

.secondary-button,
.icon-button {
    background: #dfeaf0;
    color: #163042;
}

.primary-button:hover,
.secondary-button:hover,
.icon-button:hover {
    transform: translateY(-1px);
}

.form-actions {
    display: flex;
    justify-content: flex-end;
}

@media (max-width: 760px) {
    .form-card {
        padding: 22px;
        border-radius: 20px;
    }

    .form-grid,
    .tfz-row {
        grid-template-columns: 1fr;
    }

    .section-head,
    .form-actions {
        flex-direction: column;
        align-items: stretch;
    }
}

/* Mods list card */
.mods-card {
    max-width: 920px;
    margin: 28px auto;
    padding: 22px 20px;
    background: linear-gradient(180deg, #ffffffcc, #f8fbfdcc);
    border-radius: 16px;
    border: 1px solid rgba(22,48,66,0.06);
    box-shadow: 0 10px 30px rgba(14,34,48,0.06);
}

.mods-header h2 {
    margin: 0 0 6px;
}
.mods-sub {
    margin: 0 0 14px;
    color: #516b78;
}

.mods-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 10px;
}

.mod-item {
    display: block;
}

.mod-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border-radius: 12px;
    text-decoration: none;
    color: #123241;
    background: linear-gradient(90deg, rgba(255,255,255,0.6), rgba(250,250,252,0.6));
    border: 1px solid rgba(18,50,65,0.04);
    transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
}

.mod-link::before {
    content: '';
    width: 36px;
    height: 36px;
    border-radius: 9px;
    background: linear-gradient(135deg, #e6f2ff, #eefaf3);
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.6);
}

.mod-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(18,50,65,0.08);
    background: linear-gradient(90deg, #ffffff, #f6fbff);
}

.mod-link:active {
    transform: translateY(-1px);
}

@media (max-width: 520px) {
    .mods-card { padding: 16px; }
    .mod-link { padding: 10px; }
}