:root {
    --bg: #f5f7fb;
    --bg-soft: #ffffff;
    --panel: #ffffff;
    --panel-2: #f8fbff;
    --line: #d9e3f0;
    --text: #0f172a;
    --muted: #5f6f86;
    --brand: #0d5cab;
    --brand-2: #25a9ff;
    --brand-soft: #eaf5ff;
    --danger: #b42318;
    --ok: #137333;
    --warn: #9a6700;
    --shadow: 0 16px 38px rgba(15, 23, 42, 0.08);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: Inter, Arial, Helvetica, sans-serif;
    color: var(--text);
    background: linear-gradient(180deg, #f8fbff 0%, #f3f6fb 100%);
}
a { color: inherit; text-decoration: none; }
.container { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }

.site-header {
    position: sticky; top: 0; z-index: 100;
    background: rgba(255,255,255,0.94);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(12px);
}
.nav-wrap {
    display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 16px 0;
}
.brand { display: flex; gap: 14px; align-items: center; }
.brand strong { display:block; font-size:1.1rem; margin-bottom:2px; }
.brand small { display: block; color: var(--muted); margin-top: 3px; }
.brand-logo, .footer-logo {
    width: 180px; max-width: 40vw; height: auto; display: block;
    border-radius: 10px; background: #fff; padding: 4px;
}
.nav-links { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }

.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 12px 18px; border-radius: 14px; font-weight: 700; border: 1px solid transparent;
    transition: .2s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: linear-gradient(135deg, var(--brand), var(--brand-2)); color: #fff; }
.btn-outline { border-color: #bdd1e6; background: #fff; color: var(--brand); }

.hero { padding: 72px 0 36px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 28px; align-items: center; }
.hero-card, .panel, .metric-card, .step-card, .auth-card, .table-card, .form-card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 24px;
    box-shadow: var(--shadow);
}
.hero h1, .section h2 { font-size: clamp(2rem, 4vw, 3.8rem); line-height: 1.08; margin: 0; }
.hero-card h3, .panel h3, .auth-card h2 { margin-top: 0; }
.lead { color: var(--muted); line-height: 1.7; font-size: 1.02rem; }
.badge {
    display: inline-flex; padding: 8px 14px; border-radius: 999px; background: var(--brand-soft);
    border: 1px solid #cfe5fb; color: var(--brand); font-size: 0.92rem; margin-bottom: 18px; font-weight: 600;
}
.cta-row, .metrics-grid, .cards-3, .steps-grid, .split-grid, .dash-grid { display: grid; gap: 18px; }
.cta-row { grid-template-columns: repeat(2, minmax(0, 1fr)); margin-top: 24px; }
.metric-card, .step-card, .panel, .auth-card { padding: 24px; }
.metrics-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); margin-top: 24px; }
.cards-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.steps-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.section { padding: 64px 0; }
.section-label { letter-spacing: .22em; text-transform: uppercase; color: var(--brand); font-size: .82rem; margin-bottom: 8px; font-weight: 700; }
.split-grid { grid-template-columns: 1fr 1fr; align-items: start; }
.soft-box {
    background: var(--panel-2);
    border: 1px solid #dbe8f5;
    border-radius: 20px;
    padding: 22px;
}
.form-grid { display: grid; gap: 14px; }
input, select, textarea {
    width: 100%; padding: 14px 15px; border-radius: 14px; border: 1px solid #cfdceb;
    background: #fff; color: var(--text); outline: none;
}
input:focus, select:focus, textarea:focus {
    border-color: #7eb6eb;
    box-shadow: 0 0 0 3px rgba(37,169,255,0.12);
}
textarea { min-height: 130px; resize: vertical; }
label { display: grid; gap: 8px; color: var(--muted); font-size: .95rem; }
.small { font-size: .9rem; color: var(--muted); }
.subtle { color: var(--muted); }

.alert { margin: 14px 0 0; padding: 14px 16px; border-radius: 14px; border: 1px solid var(--line); }
.alert-success { background: #ecfdf3; color: var(--ok); }
.alert-error { background: #fff1f0; color: var(--danger); }
.alert-warning { background: #fff7e6; color: var(--warn); }
.mt-16 { margin-top: 16px; }

.site-footer {
    margin-top: 40px; border-top: 1px solid var(--line); padding: 28px 0 40px; background: #fff;
}
.footer-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 18px; }

.table-wrap { overflow: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 12px 10px; border-bottom: 1px solid #e5edf6; text-align: left; vertical-align: top; }
th { font-size: .92rem; color: var(--muted); font-weight: 700; }
.status {
    display: inline-flex; padding: 8px 12px; border-radius: 999px; font-size: .85rem; font-weight: 700;
}
.status-pending { background: #fff4db; color: #9a6700; }
.status-approved { background: #ecfdf3; color: #137333; }

.result-box {
    background: linear-gradient(180deg, #f8fbff 0%, #eff7ff 100%);
    border: 1px solid #cfe3f8;
    border-radius: 20px;
    padding: 22px;
}
.result-box strong { display:block; font-size: 2rem; color: var(--brand); margin-top: 8px; }

.auth-wrap { min-height: calc(100vh - 140px); display: grid; place-items: center; padding: 40px 16px; }
.auth-card { width: min(520px, 100%); }

.site-hero-clean { padding: 18px 0 0; }
.info-list { margin: 0; padding-left: 18px; color: var(--muted); line-height: 1.8; }

@media (max-width: 980px) {
    .hero-grid, .split-grid, .cards-3, .steps-grid, .metrics-grid, .footer-grid, .cta-row {
        grid-template-columns: 1fr;
    }
    .nav-wrap { flex-direction: column; align-items: stretch; }
    .nav-links { justify-content: center; }
    .hero h1, .section h2 { font-size: clamp(1.9rem, 10vw, 3rem); }
}

select, option, optgroup {
    background: #ffffff !important;
    color: #0f172a !important;
}
body, .site-header, .site-footer, .panel, .hero-card, .form-card, .auth-card, .metric-card, .step-card, .soft-box, .result-box {
    background-image: none !important;
}
.hero {
    background: linear-gradient(180deg, #fbfdff 0%, #f4f8fc 100%);
}
.result-box {
    background: linear-gradient(180deg, #ffffff 0%, #f2f8ff 100%) !important;
}
.form-two-col {
    display:grid;
    grid-template-columns: repeat(2, minmax(0,1fr));
    gap:14px;
}
.form-two-col .full {
    grid-column: 1 / -1;
}
.calc-layout {
    display:grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 24px;
    align-items:start;
}
.calc-side-card {
    position: sticky;
    top: 100px;
}
@media (max-width: 980px) {
    .form-two-col, .calc-layout { grid-template-columns: 1fr; }
    .calc-side-card { position: static; }
}


select, option, optgroup { background:#ffffff !important; color:#0f172a !important; }
.form-two-col { display:grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap:14px; }
.form-two-col .full { grid-column: 1 / -1; }
.calc-layout { display:grid; grid-template-columns: 1.2fr 0.8fr; gap:24px; align-items:start; }
.calc-side-card { position:sticky; top:100px; }
.assumption-box {
    margin-top:18px;
    padding:16px 18px;
    background:#f8fbff;
    border:1px solid #dbe8f5;
    border-radius:16px;
    color:#5f6f86;
    line-height:1.7;
}
@media (max-width: 980px) {
  .form-two-col, .calc-layout { grid-template-columns:1fr; }
  .calc-side-card { position:static; }
}


.products-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
    margin-top: 24px;
}
.product-card {
    background: #fff;
    border: 1px solid #d9e3f0;
    border-radius: 22px;
    padding: 18px;
    box-shadow: 0 10px 28px rgba(15,23,42,.05);
}
.product-card img {
    width: 100%;
    height: 260px;
    object-fit: contain;
    display: block;
    background: #f7f9fc;
    border-radius: 16px;
    border: 1px solid #e7eef7;
}
.product-card h3 {
    margin: 14px 0 8px;
    font-size: 1.1rem;
}
.product-meta {
    display: inline-flex;
    margin-bottom: 10px;
    padding: 7px 11px;
    border-radius: 999px;
    background: #eef6ff;
    color: #0d5cab;
    font-size: .84rem;
    font-weight: 700;
}
.product-card p {
    color: #5f6f86;
    line-height: 1.7;
    font-size: .94rem;
    margin: 0;
}
.product-mini-list {
    margin: 12px 0 0;
    padding-left: 18px;
    color: #5f6f86;
    line-height: 1.8;
    font-size: .92rem;
}
@media (max-width: 1180px) {
    .products-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 700px) {
    .products-grid { grid-template-columns: 1fr; }
}


.solar-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr;
    gap: 18px;
}
.solar-panel {
    min-height: 100%;
}
.solar-note {
    margin-top: 10px;
    padding: 14px 16px;
    border-radius: 16px;
    background: #f8fbff;
    border: 1px solid #dbe8f5;
    color: #5f6f86;
    line-height: 1.7;
}
.solar-kpi {
    display: flex;
    justify-content: space-between;
    gap: 14px;
    padding: 10px 0;
    border-bottom: 1px solid #e7eef7;
}
.solar-kpi span {
    color: #5f6f86;
}
.solar-kpi strong {
    color: #0d5cab;
    text-align: right;
}
.solar-placeholder {
    color: #5f6f86;
    line-height: 1.7;
    padding: 18px 0;
}
@media (max-width: 1100px) {
    .solar-grid {
        grid-template-columns: 1fr;
    }
}