.hvac-full {
    --hvac-blue: #075fc5;
    --hvac-navy: #122232;
    --hvac-dark: #101c27;
    --hvac-text: #1e2937;
    --hvac-muted: #677387;
    --hvac-border: #d9e2ee;
    --hvac-bg: #f7f9fc;
    width: 100vw;
    min-height: 100vh;
    margin-left: calc(50% - 50vw);
    color: var(--hvac-text);
    font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: var(--hvac-bg);
}

.hvac-full * {
    box-sizing: border-box;
}

.hvac-shell {
    display: grid;
    grid-template-columns: 260px minmax(0, 1fr);
}

.hvac-sidebar {
    min-height: 100vh;
    padding: 24px 18px;
    background: linear-gradient(180deg, #172536, #0e1a25);
    color: #fff;
}

.hvac-brand {
    margin-bottom: 30px;
    font-size: 28px;
    font-weight: 900;
    line-height: .92;
}

.hvac-brand span {
    color: #9bd1ff;
    font-size: 17px;
    letter-spacing: 2px;
}

.hvac-sidebar nav {
    display: grid;
    gap: 6px;
}

.hvac-sidebar a {
    padding: 13px 14px;
    border-radius: 8px;
    color: #e9f1fb;
    text-decoration: none;
}

.hvac-sidebar a.active,
.hvac-sidebar a:hover {
    background: rgba(255,255,255,.12);
}

.hvac-main {
    padding: 28px 34px;
    min-width: 0;
}

.hvac-page-head {
    display: flex;
    align-items: start;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 22px;
}

.hvac-page-head h1 {
    margin: 0 0 6px;
    font-size: 30px;
    color: var(--hvac-navy);
}

.hvac-page-head p {
    margin: 0;
    color: var(--hvac-muted);
}

.hvac-btn,
.hvac-panel button,
.hvac-login a {
    display: inline-flex;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    padding: 0 18px;
    border: 0;
    border-radius: 7px;
    background: var(--hvac-blue);
    color: #fff;
    text-decoration: none;
    font-weight: 800;
}

.hvac-kpis {
    display: grid;
    grid-template-columns: repeat(6, minmax(130px, 1fr));
    gap: 14px;
    margin-bottom: 18px;
}

.hvac-kpis article,
.hvac-card,
.hvac-panel {
    border: 1px solid var(--hvac-border);
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 10px 24px rgba(20, 35, 55, .06);
}

.hvac-kpis article {
    padding: 16px;
}

.hvac-kpis span {
    display: block;
    color: var(--hvac-muted);
    font-size: 12px;
    font-weight: 800;
    text-transform: uppercase;
}

.hvac-kpis strong {
    display: block;
    margin-top: 8px;
    font-size: 24px;
}

.hvac-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.hvac-card {
    padding: 18px;
    overflow: hidden;
}

.hvac-card.hvac-wide {
    grid-column: 1 / -1;
}

.hvac-card h2,
.hvac-panel h2 {
    margin: 0 0 16px;
    font-size: 18px;
    color: var(--hvac-navy);
}

.hvac-board {
    display: grid;
    grid-template-columns: repeat(7, minmax(190px, 1fr));
    gap: 10px;
    overflow-x: auto;
}

.hvac-board section {
    min-height: 250px;
    padding: 12px;
    border-radius: 8px;
    background: #f1f5f9;
}

.hvac-board h3 {
    margin: 0 0 12px;
    font-size: 14px;
}

.hvac-board article {
    display: grid;
    gap: 4px;
    margin-bottom: 10px;
    padding: 10px;
    border: 1px solid var(--hvac-border);
    border-radius: 8px;
    background: #fff;
}

.hvac-board span,
.hvac-board small,
.hvac-list span {
    display: block;
    color: var(--hvac-muted);
}

.hvac-table {
    width: 100%;
    border-collapse: collapse;
}

.hvac-table th,
.hvac-table td {
    padding: 12px;
    border-top: 1px solid var(--hvac-border);
    text-align: left;
}

.hvac-list {
    display: grid;
    gap: 12px;
}

.hvac-list p {
    margin: 0;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--hvac-border);
}

.hvac-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 22px;
    padding: 22px;
    border: 1px solid var(--hvac-border);
    border-radius: 8px;
    background: #fff;
}

.hvac-steps b,
.hvac-steps span {
    text-align: center;
}

.hvac-steps b {
    color: var(--hvac-blue);
}

.hvac-form-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 14px;
}

.hvac-lower {
    grid-template-columns: minmax(0, 2fr) minmax(280px, 1fr);
}

.hvac-panel {
    padding: 18px;
}

.hvac-wide-panel {
    grid-column: auto;
}

.hvac-panel label {
    display: grid;
    gap: 7px;
    margin-bottom: 14px;
    font-weight: 650;
}

.hvac-panel input,
.hvac-panel select,
.hvac-panel textarea {
    width: 100%;
    min-height: 42px;
    padding: 9px 11px;
    border: 1px solid var(--hvac-border);
    border-radius: 6px;
    background: #fff;
}

.hvac-panel textarea {
    min-height: 72px;
}

.hvac-two,
.hvac-three,
.hvac-four {
    display: grid;
    gap: 12px;
}

.hvac-two { grid-template-columns: repeat(2, 1fr); }
.hvac-three { grid-template-columns: repeat(3, 1fr); }
.hvac-four { grid-template-columns: repeat(4, 1fr); }

.hvac-summary {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.hvac-summary dt {
    color: var(--hvac-muted);
}

.hvac-summary dd {
    margin: 0;
    text-align: right;
    font-weight: 750;
}

.hvac-login {
    display: grid;
    place-items: center;
    text-align: center;
}

.hvac-tech-mobile {
    max-width: 480px;
    margin: 0 auto;
    padding: 18px;
    background: #f7f9fc;
}

.hvac-tech-mobile header,
.hvac-tech-mobile section {
    margin-bottom: 12px;
    padding: 16px;
    border: 1px solid var(--hvac-border);
    border-radius: 8px;
    background: #fff;
}

.hvac-tech-mobile header {
    display: flex;
    justify-content: space-between;
}

.hvac-mobile-actions {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

@media (max-width: 1100px) {
    .hvac-shell,
    .hvac-form-grid,
    .hvac-lower,
    .hvac-kpis,
    .hvac-grid,
    .hvac-two,
    .hvac-three,
    .hvac-four {
        grid-template-columns: 1fr;
    }

    .hvac-sidebar {
        min-height: auto;
    }
}