:root {
    color-scheme: dark;
    --bg: #0b0d0d;
    --surface: rgba(22, 25, 24, .88);
    --surface-solid: #161918;
    --surface-soft: #1d211f;
    --border: rgba(255, 255, 255, .09);
    --text: #f2f5f1;
    --muted: #8e9691;
    --accent: #b6ef5b;
    --accent-strong: #91cf31;
    --accent-ink: #152006;
    --danger: #ff7a72;
    --shadow: 0 24px 70px rgba(0, 0, 0, .28);
}

[data-theme="light"] {
    color-scheme: light;
    --bg: #f2f4ef;
    --surface: rgba(255, 255, 255, .9);
    --surface-solid: #fff;
    --surface-soft: #eef1eb;
    --border: rgba(22, 29, 24, .1);
    --text: #18201b;
    --muted: #68716b;
    --accent: #82bd29;
    --accent-strong: #6aa71a;
    --accent-ink: #fff;
    --danger: #c23c35;
    --shadow: 0 24px 70px rgba(34, 49, 38, .1);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    min-height: 100vh;
    overflow-x: hidden;
    background: var(--bg);
    color: var(--text);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    transition: background .25s ease, color .25s ease;
}

button, input, select { font: inherit; }
input, select { min-width: 0; }
button { color: inherit; }

.ambient { position: fixed; z-index: -1; border-radius: 50%; filter: blur(90px); opacity: .11; }
.ambient-one { width: 440px; height: 440px; background: var(--accent); top: -210px; right: 4%; }
.ambient-two { width: 330px; height: 330px; background: #638bff; bottom: -190px; left: -100px; opacity: .06; }

.topbar {
    width: min(1180px, calc(100% - 40px));
    margin: 0 auto;
    min-height: 88px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border);
}

.brand { display: flex; align-items: center; gap: 12px; color: inherit; text-decoration: none; }
.brand-mark { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 12px; background: var(--accent); color: var(--accent-ink); font-weight: 900; letter-spacing: -.05em; }
.brand strong, .brand small { display: block; }
.brand strong { letter-spacing: -.02em; }
.brand small { color: var(--muted); margin-top: 2px; font-size: .72rem; }

.theme-toggle { display: flex; align-items: center; gap: 9px; padding: 10px 14px; border: 1px solid var(--border); border-radius: 999px; background: var(--surface); cursor: pointer; transition: .2s ease; }
.theme-toggle:hover { border-color: var(--accent); transform: translateY(-1px); }
.theme-icon { font-size: 1.05rem; }
.theme-label { font-size: .82rem; color: var(--muted); }

.page-shell { width: min(1180px, calc(100% - 40px)); margin: 0 auto; padding: 72px 0 50px; }
.hero { display: flex; align-items: flex-end; justify-content: space-between; gap: 30px; margin-bottom: 44px; }
.eyebrow { color: var(--accent); text-transform: uppercase; font-size: .72rem; font-weight: 800; letter-spacing: .17em; }
.hero h1 { margin: 12px 0 14px; font-size: clamp(2.6rem, 6vw, 5.25rem); line-height: .97; letter-spacing: -.065em; font-weight: 750; }
.hero h1 em { color: var(--muted); font-style: normal; font-weight: 450; }
.hero p { margin: 0; color: var(--muted); font-size: 1.05rem; }
.status-pill { flex: 0 0 auto; display: flex; align-items: center; gap: 9px; color: var(--muted); font-size: .78rem; padding-bottom: 5px; }
.status-pill span { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 5px color-mix(in srgb, var(--accent) 15%, transparent); }

.workspace { display: grid; grid-template-columns: minmax(0, 1.65fr) minmax(300px, .75fr); gap: 20px; align-items: start; }
.calculator-card, .summary-card { background: var(--surface); border: 1px solid var(--border); border-radius: 22px; box-shadow: var(--shadow); backdrop-filter: blur(18px); }
.calculator-card { padding: 28px; }
.summary-card { padding: 28px; position: sticky; top: 20px; }
.card-heading { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 28px; }
.card-heading > div { display: flex; align-items: center; gap: 12px; }
.card-heading h2 { margin: 0; font-size: 1.12rem; letter-spacing: -.02em; }
.step-number { color: var(--accent); font: 700 .72rem ui-monospace, monospace; }

label { display: block; margin-bottom: 8px; font-size: .78rem; color: var(--muted); font-weight: 650; }
input { width: 100%; outline: none; border: 1px solid var(--border); border-radius: 10px; background: var(--surface-soft); color: var(--text); padding: 13px 14px; transition: border .2s, box-shadow .2s; }
input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 13%, transparent); }
input::placeholder { color: color-mix(in srgb, var(--muted) 70%, transparent); }
select { width: 100%; outline: none; border: 1px solid var(--border); border-radius: 10px; background: var(--surface-soft); color: var(--text); padding: 13px 14px; cursor: pointer; }
select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 13%, transparent); }
.project-fields { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; padding-bottom: 27px; border-bottom: 1px solid var(--border); margin-bottom: 24px; }
.delivery-address-field { grid-column: 1 / -1; }
.default-panel-section { margin-bottom: 24px; padding-bottom: 27px; border-bottom: 1px solid var(--border); }
.default-panel-section .section-label { align-items: flex-start; }
.default-panel-section .section-label h3 { margin-bottom: 3px; }
.default-panel-section .section-label p { margin: 0; color: var(--muted); font-size: .72rem; }
.default-panel-grid { display: grid; grid-template-columns: minmax(180px, 1.5fr) 1fr 1fr; gap: 12px; }
.type-field { min-width: 0; margin: 0 0 24px; padding: 0 0 27px; border: 0; border-bottom: 1px solid var(--border); }
.type-field legend { margin-bottom: 10px; padding: 0; color: var(--muted); font-size: .78rem; font-weight: 650; }
.type-options { display: grid; grid-template-columns: repeat(4, 1fr); gap: 9px; }
.type-option { margin: 0; cursor: pointer; }
.type-option input { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
.type-option span { display: grid; place-items: center; min-height: 44px; padding: 8px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface-soft); color: var(--muted); font-size: .8rem; font-weight: 700; transition: .2s ease; }
.type-option span:hover { border-color: color-mix(in srgb, var(--accent) 60%, var(--border)); color: var(--text); }
.type-option input:checked + span { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 12%, var(--surface-soft)); color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 9%, transparent); }
.type-option input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }
.roof-config { min-width: 0; margin: 0 0 22px; padding: 0 0 22px; border: 0; border-bottom: 1px solid var(--border); animation: slideIn .25s ease both; }
.roof-config[hidden], .roof-system[hidden], .ceramic-fastener[hidden], .metallic-support[hidden], .slab-support[hidden], .pillar-config[hidden] { display: none; }
.roof-config legend { margin-bottom: 10px; padding: 0; color: var(--accent); font-size: .75rem; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
.type-options.two-options { grid-template-columns: repeat(2, 1fr); }
.type-options.three-options { grid-template-columns: repeat(3, 1fr); }
.roof-system { margin-top: 16px; animation: slideIn .2s ease both; }
.ceramic-fastener { margin-top: 16px; animation: slideIn .2s ease both; }
.metallic-support { margin-top: 16px; animation: slideIn .2s ease both; }
.slab-support { animation: slideIn .2s ease both; }
.slab-support-card { padding: 12px 14px; border: 1px solid var(--accent); border-radius: 10px; background: color-mix(in srgb, var(--accent) 9%, var(--surface-soft)); color: var(--text); font-size: .74rem; font-weight: 700; }
.slab-support-card small { display: block; margin-top: 4px; color: var(--muted); font-size: .64rem; font-weight: 500; }
.pillar-config { margin-top: 12px; }
.pillar-config > label { display: block; margin-bottom: 8px; }
.pillar-lines-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 12px; margin-top: 14px; }
.pillar-lines-heading strong, .pillar-lines-heading small { display: block; }
.pillar-lines-heading small, .pillar-cut-note { margin-top: 3px; color: var(--muted); font-size: .64rem; }
.pillar-line-actions { display: flex; gap: 7px; }
.pillar-line-actions .button { min-height: 34px; padding: 7px 10px; font-size: .68rem; }
.pillar-lines { display: grid; gap: 9px; margin-top: 10px; }
.pillar-line { display: grid; grid-template-columns: auto 1fr 1fr; align-items: end; gap: 10px; padding: 11px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface-soft); }
.pillar-line-number { align-self: center; min-width: 26px; color: var(--accent); font-weight: 800; }
.pillar-line label { font-size: .66rem; }
.pillar-line label small { display: block; margin-top: 2px; color: var(--muted); font-size: .6rem; font-weight: 500; }
.pillar-line-span { grid-column: 2 / 4; margin: 0; color: var(--muted); font-size: .63rem; }
.pillar-line-span.is-valid { color: var(--accent); }
.pillar-line-span.is-warning { color: #d69219; }
.pillar-line-span.is-invalid { color: var(--danger); }
.pillar-cut-note { display: block; }
.beam-config { margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--border); }
.beam-config-title strong, .beam-config-title small { display: block; }
.beam-config-title small, .beam-summary { margin-top: 3px; color: var(--muted); font-size: .64rem; }
.beam-config-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; margin-top: 10px; }
.beam-config .button { margin-top: 9px; min-height: 34px; padding: 7px 10px; font-size: .67rem; }
.beam-summary { display: block; }
.carport-support-editor { margin-top: 12px; padding: 13px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface-soft); }
.carport-support-heading { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.carport-support-heading .button { width: auto; min-height: 32px; margin: 0; padding: 6px 9px; font-size: .64rem; }
.carport-support-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 11px; }
.carport-support-fields .optional-toggle { grid-column: 1 / 3; margin: 0; }
.optional-toggle { display: flex; align-items: center; gap: 9px; padding: 10px; border: 1px solid var(--border); border-radius: 9px; }
.optional-toggle input { width: auto; }
.editable-calculation, .editable-calculation input { border-color: color-mix(in srgb, #63d97b 55%, var(--border)); background: color-mix(in srgb, #63d97b 10%, var(--surface-soft)); }
.carport-calculated-results { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 10px; }
.carport-calculated-item { padding: 9px 10px; border: 1px solid color-mix(in srgb, #55bce8 42%, var(--border)); border-radius: 8px; background: color-mix(in srgb, #55bce8 10%, var(--surface-soft)); }
.carport-calculated-item span, .carport-calculated-item strong { display: block; }
.carport-calculated-item span { color: var(--muted); font-size: .59rem; }
.carport-calculated-item strong { margin-top: 3px; font-size: .74rem; }
.panel-rows-tools { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.panel-rows-tools > span { align-self: center; margin-right: 3px; color: var(--muted); font-size: .68rem; font-weight: 700; }
.panel-rows-tools .button { width: auto; min-width: 84px; min-height: 36px; margin: 0; padding: 8px 11px; font-size: .68rem; }
.panel-rows-tools .button.is-active { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 15%, var(--surface-soft)); color: var(--accent); }
.panel-rows-config { margin-top: 12px; padding: 12px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface-soft); }
.panel-rows-config > strong, .panel-rows-config > small { display: block; }
.panel-rows-config > small { margin-top: 3px; color: var(--muted); font-size: .64rem; }
.panel-rows-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 9px; margin-top: 10px; }
.panel-row-item label { font-size: .66rem; }
.support-options { min-width: 0; margin: 28px 0 0; padding: 8px 0 0; border: 0; border-top: 1px solid var(--border); animation: slideIn .25s ease both; }
.support-options { order: 10; }
.support-options[hidden] { display: none; }
.support-options legend { margin-bottom: 4px; padding: 0; color: var(--accent); font-size: .75rem; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
.support-options > .profile-measures { margin-top: 8px; }
.support-category { margin-top: 0; }
.support-category-title { margin-bottom: 14px; color: var(--accent); font-size: .75rem; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
.support-category .ceramic-fastener, .support-category .metallic-support { margin-top: 0; }
.fastener-options { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
.fastener-options .type-option span { display: flex; flex-direction: column; gap: 3px; }
.fastener-options .type-option small { color: var(--muted); font-size: .62rem; }
.support-type-options { min-width: 0; margin: 28px 0 0; padding: 26px 0 0; border: 0; border-top: 1px solid var(--border); animation: slideIn .25s ease both; }
.support-type-options[hidden] { display: none; }
.support-type-options legend { padding: 0 8px 0 0; color: var(--accent); font-size: .75rem; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
.panel-fields { margin: 0 0 24px; padding: 0 0 27px; border-bottom: 1px solid var(--border); animation: slideIn .28s ease both; }
.panel-fields[hidden] { display: none; }
.section-label { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.section-label h3 { margin: 0; font-size: .9rem; letter-spacing: -.01em; }
.panel-grid { display: grid; grid-template-columns: minmax(180px, 1.5fr) repeat(3, minmax(110px, .75fr)); gap: 12px; }
.unit-input { position: relative; }
.unit-input input { padding-right: 42px; }
.unit-input span { position: absolute; top: 50%; right: 12px; transform: translateY(-50%); color: var(--muted); font-size: .7rem; font-weight: 700; pointer-events: none; }
.sets-heading h3 { margin: 0 0 4px; font-size: .9rem; }
.sets-heading p { margin: 0; color: var(--muted); font-size: .75rem; }
.sets-list { display: grid; gap: 10px; margin-top: 16px; }
.set-card { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 14px; padding: 15px; border: 1px solid var(--border); border-radius: 12px; background: var(--surface-soft); }
.set-type { padding: 7px 9px; border-radius: 7px; background: color-mix(in srgb, var(--accent) 12%, transparent); color: var(--accent); font-size: .66rem; font-weight: 850; text-transform: uppercase; letter-spacing: .07em; }
.set-type-minitrilho { background: color-mix(in srgb, #638bff 13%, transparent); color: #83a0ff; }
.set-info strong, .set-info small { display: block; }
.set-info strong { font-size: .84rem; }
.set-info small { margin-top: 4px; color: var(--muted); font-size: .7rem; }
.set-info .set-profile-weight { margin-top: 4px; color: var(--muted); font-weight: 400; }
.set-info .set-profile-weight strong { display: inline; color: inherit; font-size: inherit; font-weight: 600; }
.set-costs { display: flex; flex-wrap: wrap; gap: 7px 14px; margin-top: 11px; padding-top: 10px; border-top: 1px solid var(--border); }
.set-costs span { color: var(--muted); font-size: .65rem; }
.set-costs strong { display: inline; margin-left: 3px; color: var(--accent); }
.set-actions { display: flex; align-items: center; gap: 7px; }
.set-actions label { margin: 0; color: var(--muted); font-size: .58rem; text-align: center; text-transform: uppercase; letter-spacing: .05em; }
.set-actions input { display: block; width: 68px; margin-top: 4px; padding: 7px 6px; text-align: center; }
.edit-set { height: 34px; padding: 0 9px; border: 1px solid var(--border); border-radius: 8px; background: transparent; color: var(--muted); font-size: .66rem; font-weight: 700; cursor: pointer; }
.edit-set:hover { border-color: var(--accent); color: var(--accent); }
.set-info .edit-set { margin-top: 11px; }
.loose-products-section { margin-top: 28px; padding-top: 24px; border-top: 1px solid var(--border); }
.loose-products-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.loose-products-heading h3 { margin: 0 0 4px; font-size: .9rem; }
.loose-products-heading p, .loose-products-empty { margin: 0; color: var(--muted); font-size: .75rem; }
.loose-products-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 7px; }
.loose-products-heading .button { flex: 0 0 auto; padding: 9px 12px; }
.loose-products-table-wrap { overflow-x: auto; }
.loose-products-table { width: 100%; border-collapse: collapse; min-width: 620px; }
.loose-products-table th { padding: 8px 5px; color: var(--muted); font-size: .66rem; font-weight: 750; text-align: left; }
.loose-products-table td { padding: 5px; border-top: 1px solid var(--border); }
.loose-products-table th:nth-child(2), .loose-products-table td:nth-child(2) { width: 66px; }
.loose-products-table th:nth-child(3), .loose-products-table td:nth-child(3) { width: 115px; }
.loose-products-table th:nth-child(4), .loose-products-table td:nth-child(4) { width: 100px; text-align: right; white-space: nowrap; }
.loose-products-table th:nth-child(5), .loose-products-table td:nth-child(5) { width: 85px; text-align: right; white-space: nowrap; }
.loose-products-table th:nth-child(6), .loose-products-table td:nth-child(6) { width: 35px; }
.loose-products-table input { width: 100%; min-width: 0; padding: 8px; font-size: .75rem; }
.catalog-suggestions { max-height: 220px; overflow-y: auto; margin-top: 4px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); }
.catalog-suggestions[hidden] { display: none; }
.catalog-suggestions button { display: flex; justify-content: space-between; align-items: center; gap: 8px; width: 100%; padding: 8px; border: 0; border-bottom: 1px solid var(--border); background: transparent; color: var(--text); text-align: left; font: inherit; font-size: .71rem; cursor: pointer; }
.catalog-suggestions button:last-child { border-bottom: 0; }
.catalog-suggestions button:hover, .catalog-suggestions button:focus-visible { background: var(--surface-soft); }
.catalog-suggestions button small { display: block; color: var(--muted); font-size: .61rem; }
.catalog-suggestions button strong { flex: 0 0 auto; font-size: .68rem; }
.catalog-no-results { display: block; padding: 9px; color: var(--muted); font-size: .7rem; }
.loose-products-table .remove-item { width: 30px; height: 30px; }
.loose-products-empty { padding: 10px 5px; }
.loose-products-empty[hidden] { display: none; }
.loose-products-total { display: flex; justify-content: space-between; gap: 12px; margin-top: 10px; padding-top: 10px; border-top: 1px solid var(--border); font-size: .75rem; }
.loose-products-total span { color: var(--muted); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.empty-state { display: grid; place-items: center; margin-top: 16px; padding: 30px 15px; border: 1px dashed var(--border); border-radius: 12px; text-align: center; }
.empty-state[hidden] { display: none; }
.empty-state span { display: grid; place-items: center; width: 34px; height: 34px; margin-bottom: 10px; border-radius: 50%; background: var(--surface-soft); color: var(--accent); }
.empty-state strong { font-size: .82rem; }
.empty-state p { margin: 5px 0 0; color: var(--muted); font-size: .72rem; }
.set-modal { width: min(650px, calc(100% - 28px)); max-width: calc(100% - 28px); max-height: calc(100vh - 28px); overflow-x: hidden; padding: 0; border: 1px solid var(--border); border-radius: 20px; background: var(--surface-solid); color: var(--text); box-shadow: 0 30px 100px rgba(0,0,0,.5); }
.set-modal::backdrop { background: rgba(3, 5, 4, .72); backdrop-filter: blur(5px); }
.modal-card { display: flex; flex-direction: column; width: 100%; min-width: 0; max-width: 100%; overflow-x: hidden; padding: 28px; }
.modal-card fieldset, .modal-card section, .modal-card > div { min-width: 0; max-width: 100%; }
.modal-heading { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 26px; }
.modal-heading h2 { margin: 5px 0 0; font-size: 1.4rem; }
.modal-close { width: 36px; height: 36px; border: 1px solid var(--border); border-radius: 50%; background: transparent; color: var(--muted); font-size: 1.25rem; cursor: pointer; }
.modal-type-field { padding-bottom: 22px; }
.set-multiplier-field { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin: -6px 0 22px; padding: 14px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface-soft); }
.set-multiplier-field label { margin-bottom: 3px; color: var(--text); }
.set-multiplier-field small { color: var(--muted); font-size: .66rem; }
.set-multiplier-field input { width: 90px; text-align: center; background: var(--surface-solid); }
.set-name-field { margin: 0 0 22px; }
.slab-structure-options { min-width: 0; margin: 0 0 22px; padding: 0 0 22px; border: 0; border-bottom: 1px solid var(--border); animation: slideIn .25s ease both; }
.slab-structure-options[hidden] { display: none; }
.slab-structure-options legend { margin-bottom: 10px; padding: 0; color: var(--accent); font-size: .75rem; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
.panel-options { min-width: 0; margin: 0; padding: 0; border: 0; animation: slideIn .25s ease both; }
.panel-options[hidden] { display: none; }
.panel-options legend { margin-bottom: 14px; padding: 0; color: var(--accent); font-size: .75rem; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
.row-options { min-width: 0; margin: 0 0 24px; padding: 0 0 24px; border: 0; border-bottom: 1px solid var(--border); animation: slideIn .25s ease both; }
.row-options[hidden] { display: none; }
.row-options legend { margin-bottom: 14px; padding: 0; color: var(--accent); font-size: .75rem; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
.profile-options { min-width: 0; margin: 28px 0 0; padding: 26px 0 0; border: 0; border-top: 1px solid var(--border); animation: slideIn .25s ease both; }
.profile-options { order: 11; }
.profile-options[hidden] { display: none; }
.profile-options legend { margin-bottom: 14px; padding: 0; color: var(--accent); font-size: .75rem; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
.profile-options legend::after { content: "ÚLTIMO PASSO"; margin-left: 9px; padding: 3px 6px; border: 1px solid var(--border); border-radius: 5px; color: var(--muted); font-size: .55rem; letter-spacing: .06em; }
.profile-options .size-breakdown { margin: 0 0 7px; }
.profile-options .final-space-helper { margin-bottom: 18px; }
.profile-details { display: block; margin-top: 9px; color: var(--muted); font-size: .7rem; }
.profile-combination { margin-top: 16px; }
.combination-mode { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.combination-mode label { margin: 0; cursor: pointer; }
.combination-mode input { position: absolute; opacity: 0; pointer-events: none; }
.combination-mode span { display: grid; place-items: center; padding: 10px; border: 1px solid var(--border); border-radius: 9px; background: var(--surface-soft); color: var(--muted); font-size: .72rem; font-weight: 700; }
.combination-mode input:checked + span { border-color: var(--accent); color: var(--accent); }
.manual-combination { margin-top: 12px; }
.manual-combination[hidden] { display: none; }
.manual-combination p { margin: 0 0 9px; color: var(--muted); font-size: .68rem; }
.manual-combination-heading { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 9px; }
.manual-combination-heading p { margin: 0; }
.manual-combination-heading .button { width: auto; min-height: 32px; margin: 0; padding: 6px 9px; font-size: .62rem; }
.catalog-options { display: grid; grid-template-columns: repeat(3, 1fr); gap: 7px; max-height: 190px; overflow: auto; }
.catalog-item { display: grid; grid-template-columns: 1fr 58px; align-items: center; gap: 6px; padding: 7px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface-soft); }
.catalog-item span { font-size: .66rem; }
.catalog-item small { display: block; color: var(--muted); font-size: .58rem; }
.catalog-item input { padding: 7px; text-align: center; }
.combination-summary { display: block; margin-top: 9px; color: var(--muted); font-size: .68rem; }
.combination-summary span { display: block; margin-top: 3px; }
.combination-summary strong { color: var(--text); }
.combination-summary.is-invalid { color: var(--danger); }
.profile-measures { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 15px; }
.profile-measures > *, .modal-fields > *, .quantity-grid > *, .default-panel-grid > * { min-width: 0; }
.support-input-field { margin-top: 15px; }
.support-input-field > small { display: block; margin-top: 7px; color: var(--muted); font-size: .68rem; }
.quantity-options { min-width: 0; margin: 24px 0 0; padding: 0; border: 0; animation: slideIn .25s ease both; }
.quantity-options[hidden] { display: none; }
.quantity-options legend { padding: 0 8px 0 0; color: var(--text); font-size: .75rem; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
.quantity-options > p { margin: 0 0 14px; color: var(--muted); font-size: .72rem; }
.quantity-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.fixing-preview { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 14px; margin-top: 15px; padding: 13px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface-soft); }
.fixing-preview[hidden] { display: none; }
.fixing-preview div { display: flex; justify-content: space-between; gap: 8px; color: var(--muted); font-size: .68rem; }
.fixing-preview strong { color: var(--text); white-space: nowrap; }
.size-breakdown { display: block; margin-top: 14px; padding: 11px 13px; border-radius: 9px; background: color-mix(in srgb, var(--accent) 7%, var(--surface-soft)); color: var(--muted); font-size: .7rem; line-height: 1.5; }
.size-breakdown strong { color: var(--text); }
.final-space-helper { display: block; margin-top: 7px; color: var(--muted); font-size: .68rem; }
.final-space-helper[hidden] { display: none; }
.support-breakdown { display: block; margin-top: 8px; padding: 11px 13px; border-radius: 9px; background: color-mix(in srgb, #638bff 10%, var(--surface-soft)); color: var(--muted); font-size: .7rem; line-height: 1.5; }
.support-breakdown[hidden] { display: none; }
.support-breakdown strong { color: var(--text); }
.structural-materials { display: block; max-width: 100%; overflow-wrap: anywhere; word-break: break-word; margin-top: 8px; padding: 11px 13px; border-radius: 9px; background: var(--surface-soft); color: var(--muted); font-size: .7rem; line-height: 1.55; }
.structural-materials[hidden] { display: none; }
.structural-materials strong { color: var(--text); }
.support-breakdown.is-valid { border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent); }
.support-breakdown.is-warning { border: 1px solid color-mix(in srgb, #f4bc52 45%, transparent); background: color-mix(in srgb, #f4bc52 9%, var(--surface-soft)); }
.support-breakdown.is-invalid { border: 1px solid color-mix(in srgb, var(--danger) 45%, transparent); background: color-mix(in srgb, var(--danger) 9%, var(--surface-soft)); }
.modal-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.modal-fields .panel-model-field, .modal-fields .panel-quantity-field { grid-column: 1 / 3; }
.modal-actions { order: 12; display: flex; justify-content: flex-end; gap: 8px; margin-top: 25px; }
.modal-actions .button { width: auto; margin: 0; }

.items-labels, .item-row { display: grid; grid-template-columns: minmax(130px, 1fr) 76px 150px 34px; gap: 10px; align-items: center; }
.items-labels { color: var(--muted); font-size: .68rem; font-weight: 700; text-transform: uppercase; letter-spacing: .07em; padding: 0 4px 8px; }
.items-list { display: grid; gap: 10px; }
.item-row { animation: slideIn .25s ease both; }
@keyframes slideIn { from { opacity: 0; transform: translateY(-6px); } }
.money-input { position: relative; }
.money-input span { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--muted); font-size: .74rem; }
.money-input input { padding-left: 36px; }
.remove-item { width: 34px; height: 34px; border-radius: 9px; border: 0; background: transparent; color: var(--muted); font-size: 1.25rem; cursor: pointer; }
.remove-item:hover { background: color-mix(in srgb, var(--danger) 10%, transparent); color: var(--danger); }

.adjustment-row { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-top: 28px; padding-top: 24px; border-top: 1px solid var(--border); }
.adjustment-row label { margin: 0 0 3px; color: var(--text); }
.adjustment-row small { color: var(--muted); }
.percent-input { position: relative; width: 120px; }
.percent-input input { padding-right: 34px; text-align: right; }
.percent-input span { position: absolute; top: 50%; right: 13px; transform: translateY(-50%); color: var(--muted); }

.button { border: 0; border-radius: 10px; padding: 12px 16px; font-weight: 750; cursor: pointer; transition: transform .18s, background .18s, border-color .18s; }
.button:hover { transform: translateY(-1px); }
.button-secondary { background: transparent; border: 1px solid var(--border); color: var(--text); font-size: .76rem; }
.button-secondary:hover { border-color: var(--accent); }
.button-primary { width: 100%; display: flex; justify-content: space-between; align-items: center; background: var(--accent); color: var(--accent-ink); margin-top: 24px; }
.button-primary:hover { background: var(--accent-strong); }
.button-primary span { font-size: 1.2rem; }
#generatePdfButton, #generateDeliveryButton, #priceListButton, #manageProductsLink, #savedFilesLink, #saveBudgetButton { display: flex; align-items: center; justify-content: center; width: 100%; min-height: 44px; margin-top: 10px; text-decoration: none; }
.budget-notice { margin: 0 0 24px; padding: 14px 18px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface); color: var(--accent); font-size: .85rem; line-height: 1.6; }
.budget-notice a { color: inherit; }
.button-ghost { width: 100%; background: transparent; color: var(--muted); margin-top: 7px; font-size: .77rem; }
.button-ghost:hover { color: var(--danger); }

.summary-heading { margin-bottom: 34px; }
.live-badge { color: var(--accent); background: color-mix(in srgb, var(--accent) 10%, transparent); border: 1px solid color-mix(in srgb, var(--accent) 28%, transparent); padding: 5px 8px; border-radius: 6px; font-size: .59rem; font-weight: 850; letter-spacing: .09em; }
.summary-lines { display: grid; gap: 15px; padding-bottom: 24px; border-bottom: 1px solid var(--border); }
.summary-lines div { display: flex; justify-content: space-between; gap: 15px; font-size: .84rem; }
.summary-lines span { color: var(--muted); }
.summary-lines strong { font-weight: 650; }
.total-block { padding: 25px 0 10px; }
.total-block span, .total-block small { display: block; color: var(--muted); }
.total-block span { font-size: .75rem; margin-bottom: 7px; }
.total-block strong { display: block; color: var(--accent); font-size: clamp(2rem, 3.5vw, 2.7rem); letter-spacing: -.05em; }
.total-block small { margin-top: 8px; font-size: .72rem; }
.cost-block { display: flex; align-items: center; justify-content: space-between; gap: 15px; margin-top: 12px; padding: 14px; border: 1px solid color-mix(in srgb, var(--accent) 22%, var(--border)); border-radius: 10px; background: color-mix(in srgb, var(--accent) 7%, transparent); }
.cost-block span { color: var(--muted); font-size: .72rem; }
.cost-block strong { color: var(--accent); font-size: 1rem; }
.materials-summary { margin-top: 12px; padding: 14px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface-soft); }
.materials-summary-title { margin-bottom: 10px; color: var(--text); font-size: .72rem; font-weight: 800; text-transform: uppercase; letter-spacing: .06em; }
.materials-summary-list { display: grid; gap: 8px; }
.materials-summary-list small { color: var(--muted); font-size: .68rem; }
.materials-optional { display: grid; gap: 8px; margin-top: 14px; padding-top: 12px; border-top: 1px dashed var(--border); }
.materials-optional[hidden], .materials-grand-total[hidden] { display: none; }
.materials-optional::before { content: 'Opcionais'; color: var(--accent); font-size: .7rem; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
.material-summary-row { display: flex; justify-content: space-between; gap: 12px; color: var(--muted); font-size: .68rem; }
.material-summary-row strong { flex: 0 0 auto; color: var(--text); font-weight: 650; }
.material-group + .material-group { margin-top: 15px; padding-top: 15px; border-top: 1px solid var(--border); }
.material-group h4 { margin: 0 0 10px; color: var(--accent); font-size: .7rem; text-transform: uppercase; letter-spacing: .08em; }
.material-group-subtotal { display: flex; justify-content: space-between; margin-top: 9px; padding-top: 8px; border-top: 1px dashed var(--border); color: var(--muted); font-size: .68rem; }
.material-group-subtotal strong { color: var(--text); }
.materials-grand-total { display: flex; justify-content: space-between; gap: 12px; margin-top: 12px; padding-top: 11px; border-top: 1px solid var(--border); }
.materials-grand-total span { color: var(--muted); font-size: .7rem; }
.materials-grand-total strong { color: var(--accent); font-size: .9rem; }

footer { width: min(1180px, calc(100% - 40px)); margin: 0 auto; padding: 20px 0 38px; color: var(--muted); font-size: .7rem; text-align: center; }
footer span { color: var(--accent); padding: 0 5px; }
.toast { position: fixed; right: 24px; bottom: 24px; opacity: 0; transform: translateY(15px); pointer-events: none; background: var(--text); color: var(--bg); border-radius: 10px; padding: 12px 16px; font-size: .78rem; font-weight: 700; transition: .25s; }
.toast.show { opacity: 1; transform: translateY(0); }
.print-budget { display: none; }

@media print {
    @page { size: A4; margin: 7mm 12mm 25mm; }
    :root { color-scheme: light; }
    body { background: #fff !important; color: #111 !important; font-family: Arial, sans-serif; }
    body > *:not(.print-budget) { display: none !important; }
    .print-budget { display: block !important; }
    .print-header { display: grid; grid-template-columns: 54px 1fr auto; align-items: center; gap: 14px; padding-bottom: 14px; border-bottom: 3px solid #1f7a4f; }
    .print-brand { display: grid; width: 50px; height: 50px; place-items: center; border-radius: 8px; background: #1f7a4f; color: #fff; font-size: 20px; font-weight: 900; }
    .print-header h1 { margin: 0; color: #111; font-size: 21px; }
    .print-header p { margin: 4px 0 0; color: #555; font-size: 11px; }
    .print-header time { color: #555; font-size: 10px; }
    .print-budget > h2 { margin: 18px 0 10px; color: #111; font-size: 12px; text-transform: uppercase; }
    .print-budget > h3 { margin: 20px 0 7px; color: #1f7a4f; font-size: 12px; text-transform: uppercase; }
    .print-materials { width: 100%; border-collapse: collapse; font-size: 9px; }
    .print-materials th, .print-materials td { padding: 6px 7px; border: 1px solid #cfcfcf; text-align: left; }
    .print-materials thead th { background: #e9f3ed; color: #1c4e37; font-size: 8px; text-transform: uppercase; }
    .print-materials td:first-child { width: 9%; text-align: center; }
    .print-materials tbody td:nth-child(2) { text-transform: uppercase; }
    .print-materials td:nth-child(3), .print-materials td:nth-child(4) { width: 18%; text-align: right; white-space: nowrap; }
    .print-materials .print-group th { padding-top: 8px; background: #f5f5f5; color: #1f7a4f; text-transform: uppercase; }
    .print-materials tr { break-inside: avoid; }
    .print-totals { width: 48%; margin: 18px 0 0 auto; border-top: 2px solid #1f7a4f; }
    .print-totals div { display: flex; justify-content: space-between; gap: 20px; padding: 8px 3px; border-bottom: 1px solid #ddd; font-size: 11px; }
    .print-totals div:last-child { color: #1f7a4f; font-size: 12px; }
    .proposal-page { box-sizing: border-box; width: 100%; min-height: 0; padding: 0; overflow: visible; background: #fff; }
    .proposal-letterhead { width: 100%; border: 0; border-collapse: collapse; }
    .proposal-letterhead > thead { display: table-header-group; }
    .proposal-letterhead > tfoot { display: table-footer-group; }
    .proposal-letterhead > thead > tr > td, .proposal-letterhead > tfoot > tr > td,
    .proposal-letterhead > tbody > tr > td { padding: 0; border: 0; }
    .proposal-header-image { position: static; display: block; width: 100%; height: auto; margin-bottom: 5mm; }
    .proposal-footer-image { position: fixed; right: 0; bottom: -20mm; left: 0; display: block; width: 100%; height: auto; margin: 0; }
    .proposal-content { color: #111; font-family: Arial, Helvetica, sans-serif; font-size: 10pt; line-height: 1.42; }
    .proposal-content p { margin: 0 0 4.5mm; }
    .proposal-recipient { margin-bottom: 5mm !important; line-height: 1.35; }
    .proposal-page .print-materials { margin-top: 2mm; font-size: 7.7pt; line-height: 1.08; }
    .proposal-page .print-materials th, .proposal-page .print-materials td { height: 4.2mm; box-sizing: border-box; padding: .7mm 1.7mm; border: .25mm solid #333; }
    .proposal-page .print-materials td:first-child { width: 7%; }
    .proposal-page .print-materials td:nth-child(2) { width: 59%; }
    .proposal-page .print-materials td:nth-child(3), .proposal-page .print-materials td:nth-child(4) { width: 17%; }
    .proposal-table-title th { background: #fff !important; color: #111 !important; font-size: 8pt !important; text-align: center !important; }
    .proposal-table-total td:last-child { font-weight: 800; }
    .proposal-page h3 { margin: 5mm 0 0 !important; padding: 1mm 2mm; border: .25mm solid #333; color: #111 !important; font-size: 8pt !important; }
    .proposal-page .print-totals { width: 44%; margin-top: 7mm; }
    .proposal-page .print-totals div { padding: 1.2mm 1.5mm; border: .25mm solid #333; border-bottom: 0; font-size: 8pt; }
    .proposal-page .print-totals div:last-child { border-bottom: .25mm solid #333; color: #111; font-size: 8pt; }
    .proposal-dimensions { margin: 1mm 0 0 7mm; padding-left: 6mm; }
    .proposal-observations-title { margin-top: 5mm !important; border: 0 !important; padding-left: 0 !important; font-size: 9pt !important; }
    .proposal-observations { margin: 3mm 0 0 7mm; padding-left: 6mm; }
    .proposal-observations li, .proposal-dimensions li { margin-bottom: 1.5mm; padding-left: 2mm; }
    .proposal-terms { margin: 5mm 0 0 7mm; padding-left: 6mm; font-size: 10pt; }
    .proposal-terms ul { margin: 0; padding-left: 7mm; }
    .proposal-terms li { margin-bottom: 1.5mm; padding-left: 2mm; }
    .proposal-date { margin-top: 2mm !important; text-align: right; }
}

@media (max-width: 820px) {
    .page-shell { padding-top: 45px; }
    .hero { align-items: flex-start; flex-direction: column; }
    .workspace { grid-template-columns: 1fr; }
    .summary-card { position: static; }
}

@media (max-width: 560px) {
    .topbar, .page-shell, footer { width: min(100% - 24px, 1180px); }
    .topbar { min-height: 72px; }
    .theme-label, .brand small, .status-pill { display: none; }
    .theme-toggle { padding: 9px 11px; }
    .page-shell { padding-top: 35px; }
    .hero { margin-bottom: 28px; }
    .hero h1 { font-size: 2.75rem; }
    .calculator-card, .summary-card { padding: 20px; border-radius: 17px; }
    .card-heading { align-items: flex-start; }
    .button-secondary { padding: 9px 10px; }
    .items-labels { display: none; }
    .project-fields { grid-template-columns: 1fr; }
    .default-panel-grid { grid-template-columns: 1fr 1fr; }
    .default-panel-model { grid-column: 1 / 3; }
    .type-options { grid-template-columns: 1fr 1fr; }
    .panel-grid { grid-template-columns: 1fr 1fr; }
    .panel-model-field { grid-column: 1 / 3; }
    .modal-card { padding: 20px; }
    .modal-fields { grid-template-columns: 1fr; }
    .pillar-lines-heading { align-items: stretch; flex-direction: column; }
    .pillar-line-actions .button { flex: 1; }
    .pillar-line { grid-template-columns: auto 1fr; }
    .pillar-line > div:last-child { grid-column: 2; }
    .pillar-line-span { grid-column: 2; }
    .panel-rows-list { grid-template-columns: 1fr 1fr; }
    .beam-config-grid { grid-template-columns: 1fr; }
    .carport-support-fields { grid-template-columns: 1fr; }
    .carport-support-fields .optional-toggle { grid-column: 1; }
    .carport-calculated-results { grid-template-columns: 1fr 1fr; }
    .modal-fields .panel-model-field, .modal-fields .panel-quantity-field { grid-column: auto; }
    .quantity-grid { grid-template-columns: 1fr; }
    .fixing-preview { grid-template-columns: 1fr; }
    .profile-measures { grid-template-columns: 1fr; }
    .catalog-options { grid-template-columns: 1fr 1fr; }
    .modal-actions { flex-direction: column-reverse; }
    .modal-actions .button { width: 100%; }
    .item-row { grid-template-columns: 1fr 70px 34px; padding: 12px; border: 1px solid var(--border); border-radius: 12px; }
    .item-description { grid-column: 1 / 4; }
    .money-input { grid-column: 1 / 3; }
    .remove-item { grid-column: 3; grid-row: 2; }
}