/* === Reset & Base === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --green: #2d7a2d;
    --green-dark: #1f5a1f;
    --green-light: #e8f5e9;
    --green-mid: #c8e6c9;
    --accent: #4caf50;
    --text: #1a2a1a;
    --text-muted: #5a6a5a;
    --border: #c8dcc8;
    --bg: #f4f9f4;
    --white: #ffffff;
    --shadow: 0 2px 8px rgba(45,122,45,0.10);
    --shadow-lg: 0 4px 20px rgba(45,122,45,0.15);
    --radius: 10px;
    --radius-sm: 6px;
}

body {
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
    line-height: 1.5;
    min-height: 100vh;
}

/* === Header === */
.site-header {
    background: linear-gradient(135deg, var(--green-dark) 0%, var(--green) 100%);
    color: var(--white);
    padding: 18px 24px;
    box-shadow: 0 3px 12px rgba(0,0,0,0.2);
    position: sticky;
    top: 0;
    z-index: 100;
}
.header-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}
.header-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}
.logo-icon {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.15);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}
.header-titles h1 {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -0.3px;
}
.header-titles p {
    font-size: 12px;
    opacity: 0.75;
    font-weight: 400;
}
.header-badge {
    background: rgba(255,255,255,0.15);
    border: 1px solid rgba(255,255,255,0.25);
    border-radius: 20px;
    padding: 4px 12px;
    font-size: 12px;
    font-weight: 600;
}

/* === Main Layout === */
.main-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 24px 16px;
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 24px;
    align-items: start;
}

/* === Card === */
.card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    overflow: hidden;
}
.card-header {
    background: var(--green-light);
    border-bottom: 1px solid var(--border);
    padding: 12px 18px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.card-header h2 {
    font-size: 14px;
    font-weight: 600;
    color: var(--green-dark);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.card-header .step-badge {
    background: var(--green);
    color: var(--white);
    border-radius: 50%;
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 700;
    flex-shrink: 0;
}
.card-body {
    padding: 18px;
}

/* === Left Panel === */
.left-panel {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* === System Cards === */
.system-cards {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.system-card {
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    cursor: pointer;
    transition: all 0.2s;
    background: var(--white);
    display: flex;
    align-items: center;
    gap: 12px;
    text-align: left;
}
.system-card:hover {
    border-color: var(--accent);
    background: var(--green-light);
}
.system-card.active {
    border-color: var(--green);
    background: var(--green-light);
    box-shadow: 0 0 0 3px rgba(45,122,45,0.12);
}
.system-card .sys-icon {
    font-size: 22px;
    width: 40px;
    height: 40px;
    background: var(--green-mid);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.system-card.active .sys-icon {
    background: var(--green);
}
.sys-info .sys-name {
    font-weight: 600;
    font-size: 13px;
    color: var(--text);
}
.sys-info .sys-desc {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 2px;
}

/* === Color Swatches === */
.color-swatches {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 4px 0;
}
.color-swatch {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    transition: transform 0.15s;
}
.color-swatch:hover { transform: scale(1.1); }
.swatch-circle {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 3px solid transparent;
    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
    transition: border-color 0.15s, box-shadow 0.15s;
}
.color-swatch.active .swatch-circle {
    border-color: var(--green);
    box-shadow: 0 0 0 3px rgba(45,122,45,0.25), 0 2px 6px rgba(0,0,0,0.2);
}
.swatch-label {
    font-size: 10px;
    color: var(--text-muted);
    text-align: center;
    max-width: 52px;
    line-height: 1.2;
}
.color-swatch.active .swatch-label {
    color: var(--green-dark);
    font-weight: 600;
}
.no-colors {
    color: var(--text-muted);
    font-size: 12px;
    font-style: italic;
}

/* === Wall Type === */
.wall-cards {
    display: flex;
    gap: 8px;
}
.wall-card {
    flex: 1;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 10px 8px;
    cursor: pointer;
    text-align: center;
    transition: all 0.2s;
    background: var(--white);
    font-size: 13px;
}
.wall-card:hover {
    border-color: var(--accent);
    background: var(--green-light);
}
.wall-card.active {
    border-color: var(--green);
    background: var(--green-light);
    font-weight: 600;
    color: var(--green-dark);
}
.wall-card .wall-icon { font-size: 20px; display: block; margin-bottom: 4px; }

/* === Inputs === */
.input-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.input-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.4px;
}
.input-row {
    display: flex;
    align-items: center;
    gap: 8px;
}
.text-input {
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 8px 10px;
    font-size: 14px;
    color: var(--text);
    background: var(--white);
    transition: border-color 0.15s;
    width: 100%;
}
.text-input:focus {
    outline: none;
    border-color: var(--green);
    box-shadow: 0 0 0 3px rgba(45,122,45,0.1);
}
.input-suffix {
    font-size: 13px;
    color: var(--text-muted);
    white-space: nowrap;
}

/* === Stepper === */
.stepper {
    display: flex;
    align-items: center;
    gap: 0;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    width: fit-content;
}
.stepper-btn {
    background: var(--green-light);
    border: none;
    width: 34px;
    height: 36px;
    font-size: 18px;
    cursor: pointer;
    color: var(--green-dark);
    font-weight: 700;
    transition: background 0.15s;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}
.stepper-btn:hover { background: var(--green-mid); }
.stepper-val {
    width: 44px;
    height: 36px;
    text-align: center;
    border: none;
    border-left: 1.5px solid var(--border);
    border-right: 1.5px solid var(--border);
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
    background: var(--white);
}
.stepper-val:focus { outline: none; }

/* === Eaves === */
.eaves-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}
.eave-input-wrap {
    display: flex;
    align-items: center;
    gap: 6px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 6px 10px;
    background: var(--white);
    transition: border-color 0.15s;
}
.eave-input-wrap:focus-within {
    border-color: var(--green);
    box-shadow: 0 0 0 3px rgba(45,122,45,0.1);
}
.eave-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
    white-space: nowrap;
}
.eave-val {
    border: none;
    width: 50px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
    text-align: right;
    background: transparent;
}
.eave-val:focus { outline: none; }
.eave-unit {
    font-size: 12px;
    color: var(--text-muted);
}

/* === Slider === */
.slider-wrap {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.slider-row {
    display: flex;
    align-items: center;
    gap: 10px;
}
input[type=range] {
    -webkit-appearance: none;
    appearance: none;
    flex: 1;
    height: 6px;
    border-radius: 3px;
    background: var(--green-mid);
    outline: none;
}
input[type=range]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--green);
    cursor: pointer;
    border: 3px solid var(--white);
    box-shadow: 0 1px 4px rgba(0,0,0,0.2);
    transition: transform 0.15s;
}
input[type=range]::-webkit-slider-thumb:hover { transform: scale(1.15); }
.slider-val {
    font-size: 13px;
    font-weight: 600;
    color: var(--green-dark);
    white-space: nowrap;
    min-width: 110px;
}

/* === Collapsible === */
.collapsible-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    padding: 10px 14px;
    background: var(--green-light);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    user-select: none;
    transition: background 0.15s;
}
.collapsible-header:hover { background: var(--green-mid); }
.collapsible-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--green-dark);
    display: flex;
    align-items: center;
    gap: 6px;
}
.collapsible-arrow {
    font-size: 10px;
    color: var(--green-dark);
    transition: transform 0.2s;
}
.collapsible-arrow.open { transform: rotate(180deg); }
.collapsible-body {
    display: none;
    padding: 14px;
    border: 1px solid var(--border);
    border-top: none;
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
    background: var(--white);
}
.collapsible-body.open { display: block; }
.corners-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}
.corner-input-wrap {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.corner-label {
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 500;
}

/* === Right Panel === */
.right-panel {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.results-placeholder {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-muted);
}
.results-placeholder .ph-icon { font-size: 48px; margin-bottom: 12px; opacity: 0.4; }
.results-placeholder p { font-size: 14px; }

/* === Results Table === */
.results-table-wrap {
    overflow-x: auto;
}
table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}
thead th {
    background: var(--green);
    color: var(--white);
    padding: 10px 12px;
    text-align: left;
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    white-space: nowrap;
}
thead th:first-child { border-radius: 0; }
tbody tr {
    border-bottom: 1px solid var(--green-light);
    transition: background 0.1s;
}
tbody tr:hover { background: var(--green-light); }
tbody tr:last-child { border-bottom: none; }
tbody td {
    padding: 10px 12px;
    vertical-align: middle;
}
td.pos-name { font-weight: 500; }
td.pos-article {
    font-family: monospace;
    font-size: 11px;
    color: var(--text-muted);
    white-space: nowrap;
}
td.pos-qty {
    text-align: center;
    font-weight: 700;
    color: var(--green-dark);
    font-size: 15px;
}
td.pos-price {
    text-align: right;
    color: var(--text-muted);
    white-space: nowrap;
}
td.pos-sum {
    text-align: right;
    font-weight: 700;
    white-space: nowrap;
    color: var(--text);
}
td.pos-stock { text-align: center; }

/* Stock badges */
.stock-badge {
    display: inline-block;
    padding: 3px 8px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    white-space: nowrap;
}
.stock-много { background: #e8f5e9; color: #2e7d32; }
.stock-достаточно { background: #fff3e0; color: #e65100; }
.stock-мало { background: #ffebee; color: #c62828; }
.stock-нет { background: #f5f5f5; color: #9e9e9e; text-decoration: line-through; }
.stock-na { background: #f5f5f5; color: #9e9e9e; }

/* === Total === */
.total-block {
    background: linear-gradient(135deg, var(--green-dark), var(--green));
    color: var(--white);
    border-radius: var(--radius);
    padding: 20px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    box-shadow: var(--shadow-lg);
}
.total-label {
    font-size: 14px;
    font-weight: 600;
    opacity: 0.85;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.total-value {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -0.5px;
}
.total-note {
    font-size: 11px;
    opacity: 0.65;
    margin-top: 2px;
}

/* === Completeness Panel === */
.completeness-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 8px;
    padding: 14px;
}
.comp-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    background: var(--green-light);
    font-size: 12px;
}
.comp-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}
.comp-dot.ok { background: #4caf50; }
.comp-dot.warn { background: #ff9800; }
.comp-dot.miss { background: #f44336; }
.comp-name { font-weight: 500; }
.comp-article { font-size: 10px; color: var(--text-muted); margin-left: auto; font-family: monospace; }

/* === Missing product row === */
tr.row-missing td { color: #999; }
tr.row-missing td.pos-name { font-style: italic; }
.not-found-badge {
    display: inline-block;
    background: #ffebee;
    color: #c62828;
    border-radius: 10px;
    padding: 2px 8px;
    font-size: 10px;
    font-weight: 600;
}

/* === Responsive === */
@media (max-width: 1100px) {
    .main-container {
        grid-template-columns: 360px 1fr;
    }
}
@media (max-width: 900px) {
    .main-container {
        grid-template-columns: 1fr;
    }
    .left-panel { order: 1; }
    .right-panel { order: 2; }
    .total-value { font-size: 22px; }
}
@media (max-width: 600px) {
    .header-inner { flex-direction: column; text-align: center; }
    .eaves-grid { grid-template-columns: 1fr; }
    .corners-grid { grid-template-columns: 1fr; }
    .completeness-grid { grid-template-columns: 1fr; }
}

/* === Divider in inputs === */
.section-divider {
    height: 1px;
    background: var(--border);
    margin: 4px 0;
}

/* === Highlight row === */
tbody tr.highlight { background: #fffde7; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--green-light); }
::-webkit-scrollbar-thumb { background: var(--green-mid); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--green); }