:root {
    --bg: #f5f7f4;
    --panel: #ffffff;
    --ink: #17211b;
    --muted: #667168;
    --line: #dce4dd;
    --accent: #2f6f4e;
    --accent-dark: #24583d;
    --error-bg: #fff0f0;
    --error: #9b1c1c;
    --success-bg: #edf8ef;
    --success: #20613d;
    --green: #1f8a4c;
    --yellow: #d89b13;
    --red: #c9342d;
    --warning-bg: #fff7e8;
}

* {
    box-sizing: border-box;
}

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

.page {
    width: min(1280px, calc(100% - 32px));
    margin: 0 auto;
    padding: 28px 0 48px;
}

.topbar {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 22px;
}

.top-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.brand-heading {
    display: grid;
    gap: 12px;
}

.brand-logo {
    display: block;
    width: min(250px, 58vw);
    max-height: 70px;
    height: auto;
    object-fit: contain;
    object-position: left center;
}

.eyebrow {
    margin: 0 0 6px;
    color: var(--accent);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0;
    text-transform: uppercase;
}

h1,
h2,
p {
    margin: 0;
}

h1 {
    font-size: 32px;
    line-height: 1.15;
}

h2 {
    font-size: 20px;
}

.panel,
.empty-state,
.table-section {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
}

.upload-panel {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 24px;
    padding: 20px;
    margin-bottom: 18px;
}

label {
    display: block;
    margin-bottom: 8px;
    color: var(--muted);
    font-size: 14px;
    font-weight: 700;
}

.upload-row {
    display: flex;
    gap: 10px;
}

input[type="file"],
input[type="text"],
input[type="password"],
select {
    width: 100%;
    min-height: 42px;
    padding: 8px 10px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: #fff;
    color: var(--ink);
}

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

.login-panel {
    width: min(420px, 100%);
    padding: 28px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
}

.login-logo {
    display: block;
    width: min(250px, 100%);
    max-height: 70px;
    height: auto;
    margin-bottom: 20px;
    object-fit: contain;
    object-position: left center;
}

.login-panel h1 {
    margin-bottom: 20px;
    font-size: 28px;
}

.login-form {
    display: grid;
    gap: 12px;
}

.login-form label {
    margin-bottom: -4px;
}

.login-form button {
    margin-top: 6px;
}

button {
    min-height: 42px;
    padding: 0 18px;
    border: 0;
    border-radius: 6px;
    background: var(--accent);
    color: #fff;
    cursor: pointer;
    font-weight: 700;
    white-space: nowrap;
}

button:hover {
    background: var(--accent-dark);
}

a {
    color: var(--accent-dark);
    font-weight: 700;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.button-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 0 16px;
    border-radius: 6px;
    background: var(--accent);
    color: #fff;
    font-weight: 700;
    white-space: nowrap;
}

.button-link:hover {
    background: var(--accent-dark);
    text-decoration: none;
}

.subtle-link {
    color: var(--muted);
    white-space: nowrap;
}

.alert {
    padding: 12px 14px;
    border-radius: 8px;
    margin-bottom: 14px;
    font-weight: 700;
}

.alert-error {
    background: var(--error-bg);
    color: var(--error);
}

.alert-success {
    background: var(--success-bg);
    color: var(--success);
}

.view-nav {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 18px;
    padding: 8px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
}

.view-nav a {
    display: inline-flex;
    align-items: center;
    min-height: 38px;
    padding: 0 14px;
    border-radius: 6px;
    color: var(--muted);
    font-weight: 800;
}

.view-nav a:hover,
.view-nav a.active {
    background: #eef4ef;
    color: var(--accent-dark);
    text-decoration: none;
}

.summary-strip {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1px;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--line);
    margin-bottom: 18px;
}

.summary-strip div {
    padding: 18px;
    background: var(--panel);
}

.summary-strip span {
    display: block;
    color: var(--muted);
    font-size: 13px;
    margin-bottom: 8px;
}

.summary-strip strong {
    display: block;
    font-size: 22px;
    line-height: 1.2;
}

.compare-panel {
    display: grid;
    grid-template-columns: 1.4fr repeat(5, 1fr);
    gap: 1px;
    overflow: hidden;
    background: var(--line);
    margin-bottom: 18px;
}

.compare-panel div {
    padding: 14px;
    background: var(--panel);
}

.compare-panel span {
    display: block;
    margin-bottom: 6px;
    color: var(--muted);
    font-size: 12px;
}

.compare-panel strong {
    font-size: 15px;
    line-height: 1.25;
}

.compare-form {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) auto;
    gap: 14px;
    align-items: end;
    padding: 18px 20px;
}

.optimization-hero {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 1px;
    overflow: hidden;
    margin-bottom: 18px;
    background: var(--line);
    border: 1px solid var(--line);
    border-radius: 8px;
}

.optimization-hero div {
    padding: 20px;
    background: var(--panel);
}

.optimization-hero span {
    display: block;
    margin-bottom: 8px;
    color: var(--muted);
    font-size: 13px;
}

.optimization-hero strong {
    color: var(--error);
    font-size: 26px;
    line-height: 1.15;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    margin-bottom: 18px;
}

.compact-table {
    overflow: hidden;
}

.compact-table h2 {
    padding: 16px 16px 0;
    font-size: 18px;
}

.compact-table table {
    min-width: 0;
}

.compact-table th,
.compact-table td {
    padding: 10px 12px;
    font-size: 13px;
}

.table-section {
    overflow: hidden;
    margin-bottom: 18px;
}

.section-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 20px;
    border-bottom: 1px solid var(--line);
}

.section-heading p {
    margin-top: 5px;
    color: var(--muted);
    font-size: 14px;
}

.table-wrap {
    overflow-x: auto;
}

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

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

th {
    position: sticky;
    top: 0;
    background: #eef4ef;
    color: #314139;
    font-size: 13px;
}

.sort-link {
    display: inline-block;
    color: inherit;
    font-weight: 800;
    white-space: nowrap;
}

.num .sort-link {
    text-align: right;
}

tbody tr:hover {
    background: #f8fbf8;
}

.num {
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.strong-loss {
    color: var(--error);
    font-weight: 800;
}

.traffic {
    display: inline-block;
    width: 10px;
    height: 10px;
    margin-right: 7px;
    border-radius: 999px;
    vertical-align: 1px;
}

.traffic.green {
    background: var(--green);
}

.traffic.yellow {
    background: var(--yellow);
}

.traffic.red {
    background: var(--red);
}

.traffic.neutral {
    background: #9aa5a0;
}

.warning-section {
    border-color: #f0d8ab;
}

.warning-section th {
    background: var(--warning-bg);
}

.warning-badge {
    display: inline-block;
    padding: 5px 8px;
    border-radius: 999px;
    background: #ffe6df;
    color: #9b271f;
    font-size: 12px;
    font-weight: 700;
    white-space: nowrap;
}

.rating-badge {
    display: inline-block;
    padding: 5px 8px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 800;
    white-space: nowrap;
}

.rating-badge.good {
    background: #e2f5e8;
    color: #17633b;
}

.rating-badge.solid,
.rating-badge.potential {
    background: #eef4ef;
    color: #24583d;
}

.rating-badge.watch,
.rating-badge.small {
    background: #fff1cf;
    color: #805a08;
}

.rating-badge.risk,
.rating-badge.loss {
    background: #ffe1dd;
    color: #9b271f;
}

.muted {
    padding: 14px 16px 18px;
    color: var(--muted);
}

.empty-state {
    padding: 34px;
}

.empty-state-inline {
    padding: 22px 20px;
    color: var(--muted);
}

.empty-state p {
    max-width: 680px;
    margin-top: 8px;
    color: var(--muted);
}

@media (max-width: 820px) {
    .page {
        width: min(100% - 20px, 1280px);
        padding-top: 18px;
    }

    .upload-panel,
    .summary-strip,
    .compare-panel,
    .compare-form,
    .optimization-hero,
    .dashboard-grid,
    .view-nav {
        grid-template-columns: 1fr;
    }

    .upload-row {
        flex-direction: column;
    }

    .topbar,
    .section-heading {
        align-items: flex-start;
        flex-direction: column;
    }

    .top-actions {
        align-items: stretch;
        flex-direction: column;
        width: 100%;
    }

    .view-nav {
        display: grid;
    }

    .brand-logo {
        width: min(230px, 72vw);
        max-height: 64px;
    }

    h1 {
        font-size: 26px;
    }
}