:root {
    --ink: #1a1a1a;
    --muted: #5c5c5c;
    --line: #d0d5dd;
    --bg: #f4f5f7;
    --card: #ffffff;
    --accent: #1b2a4a;
    --accent-2: #0b5cab;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    color: var(--ink);
    background: var(--bg);
}

.app-nav {
    background: var(--accent);
    color: #fff;
}

.app-nav-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.app-nav nav { display: flex; gap: 8px; }

.app-nav a {
    color: #fff;
    text-decoration: none;
    padding: 6px 10px;
    border-radius: 4px;
    font-size: 14px;
}

.app-nav a.active,
.app-nav a:hover {
    background: rgba(255, 255, 255, 0.15);
}

.nav-user {
    opacity: 0.8;
    font-size: 13px;
    padding: 6px 8px;
}

.wrap {
    max-width: 1100px;
    margin: 0 auto;
    padding: 24px 20px 48px;
}

.page-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 16px;
}

h1 { font-size: 22px; margin: 0; }
h2 { font-size: 14px; margin: 0 0 10px; color: var(--accent); }

fieldset {
    border: 1px solid var(--line);
    background: var(--card);
    border-radius: 8px;
    padding: 16px 18px 18px;
    margin: 0 0 16px;
}

legend {
    font-weight: 700;
    padding: 0 8px;
    color: var(--accent);
}

.grid-2, .grid-3, .grid-4, .grid-6 {
    display: grid;
    gap: 12px;
}

.grid-2 { grid-template-columns: 1fr 1fr; }
.grid-3 { grid-template-columns: 1fr 1fr 1fr; }
.grid-4 { grid-template-columns: 1fr 1fr 1fr 1fr; }
.grid-6 { grid-template-columns: repeat(6, 1fr); }

.field {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 10px;
}

.field span {
    font-size: 12px;
    color: var(--muted);
    font-weight: 700;
}

.field input,
.field textarea {
    font: inherit;
    padding: 8px 10px;
    border: 1px solid #c5ccd6;
    border-radius: 4px;
    width: 100%;
}

.field input:focus,
.field textarea:focus {
    outline: 2px solid #8cb8e8;
    border-color: var(--accent-2);
}

.hint-box .hint {
    background: #f0f3f8;
    border: 1px dashed #c5ccd6;
    border-radius: 4px;
    padding: 8px 10px;
    font-size: 13px;
    min-height: 38px;
}

.table-scroll { overflow-x: auto; margin-bottom: 12px; }

.cargo-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 900px;
}

.cargo-table th {
    text-align: left;
    font-size: 11px;
    background: #eef2f7;
    padding: 8px 6px;
    border: 1px solid var(--line);
}

.cargo-table td {
    border: 1px solid var(--line);
    padding: 4px;
}

.cargo-table input {
    width: 100%;
    border: 0;
    padding: 6px 4px;
    font: inherit;
    background: transparent;
}

.cargo-table input:focus { outline: none; background: #f7fbff; }

.btn,
.form-actions a.btn {
    display: inline-block;
    border: 1px solid #c5ccd6;
    background: #fff;
    color: var(--ink);
    padding: 8px 14px;
    border-radius: 4px;
    cursor: pointer;
    text-decoration: none;
    font: inherit;
}

.btn-primary {
    background: var(--accent-2);
    border-color: var(--accent-2);
    color: #fff;
}

.btn-icon {
    border: 0;
    background: transparent;
    font-size: 20px;
    cursor: pointer;
    color: #a33;
    line-height: 1;
}

.form-actions {
    display: flex;
    gap: 10px;
    margin-top: 8px;
}

.list-table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    border: 1px solid var(--line);
}

.list-table th,
.list-table td {
    text-align: left;
    padding: 10px 12px;
    border-bottom: 1px solid var(--line);
    font-size: 14px;
}

.list-table th { background: #eef2f7; }

.actions a { margin-right: 12px; }

.empty { background: #fff; padding: 24px; border: 1px solid var(--line); border-radius: 8px; }

.login-body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px 16px;
    background: linear-gradient(165deg, #15233d 0%, #1b2a4a 48%, #0b5cab 140%);
}

.login-card {
    width: 100%;
    max-width: 400px;
    background: #fff;
    border-radius: 10px;
    padding: 32px 28px 28px;
    box-shadow: 0 18px 50px rgba(0, 0, 0, 0.28);
}

.login-brand {
    text-align: center;
    margin-bottom: 22px;
}

.login-brand img {
    display: block;
    width: 150px;
    height: auto;
    margin: 0 auto 16px;
    border-radius: 4px;
}

.login-brand h1 {
    font-size: 20px;
    margin: 0 0 6px;
    color: var(--accent);
}

.login-brand p {
    margin: 0;
    color: var(--muted);
    font-size: 13px;
}

.login-error {
    background: #fdecec;
    color: #9b1c1c;
    border: 1px solid #f3c1c1;
    border-radius: 4px;
    padding: 8px 10px;
    font-size: 13px;
    margin: 0 0 14px;
}

.login-submit {
    width: 100%;
    margin-top: 8px;
    padding: 10px 14px;
}

@media (max-width: 800px) {
    .grid-2, .grid-3, .grid-4, .grid-6 { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 560px) {
    .grid-2, .grid-3, .grid-4, .grid-6 { grid-template-columns: 1fr; }
    .app-nav-inner { flex-direction: column; align-items: flex-start; }
}