html, body {
    font-family: "DM Sans", ui-sans-serif, system-ui, sans-serif;
}

h1:focus {
    outline: none;
}

.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}

    .blazor-error-boundary::after {
        content: "An error has occurred."
    }

.darker-border-checkbox.form-check-input {
    border-color: #929292;
}

/* Pricing page contrast tuning */
.pricing-page .pricing-card {
    border-color: oklch(var(--bc) / 0.14);
}

.pricing-page .pricing-card-copy {
    color: oklch(var(--bc) / 0.86);
}

.pricing-page .pricing-muted {
    color: oklch(var(--bc) / 0.72);
}

.pricing-page .pricing-tier-box {
    background: oklch(var(--b2) / 0.58);
    border: 1px solid oklch(var(--bc) / 0.12);
}

.pricing-page .pricing-compare thead tr {
    background: oklch(var(--b2) / 0.82);
}

.pricing-page .pricing-compare tbody tr:nth-child(odd) {
    background: oklch(var(--b1) / 1);
}

.pricing-page .pricing-compare tbody tr:nth-child(even) {
    background: oklch(var(--b2) / 0.36);
}

/* Landing nav resources dropdown */
.nav-dropdown {
    position: relative;
}

.nav-dropdown-menu {
    position: absolute;
    top: calc(100% + 0.3rem);
    left: 0;
    min-width: 16rem;
    border-radius: 0.9rem;
    border: 1px solid oklch(var(--bc) / 0.12);
    background-color: #1e293b;
    background: oklch(var(--b1) / 1);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 16px 32px oklch(0 0 0 / 0.35);
    padding: 0.45rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(6px);
    transition: opacity 160ms ease, transform 160ms ease, visibility 160ms ease;
    z-index: 50;
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-dropdown-item {
    display: block;
    padding: 0.6rem 0.75rem;
    border-radius: 0.65rem;
    color: oklch(var(--bc) / 0.92);
    text-decoration: none;
    font-size: 0.94rem;
}

.nav-dropdown-item:hover {
    background: oklch(var(--b2) / 0.85);
}

/* Resources pages */
.resource-card {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    border: 1px solid oklch(var(--bc) / 0.12);
    border-radius: 1rem;
    padding: 1.15rem;
    background: oklch(var(--b1) / 0.92);
    text-decoration: none;
    transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.resource-card:hover {
    transform: translateY(-2px);
    border-color: oklch(var(--p) / 0.4);
    box-shadow: 0 8px 24px oklch(var(--bc) / 0.12);
}

.resource-icon {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 0.8rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: oklch(var(--p) / 0.15);
    color: oklch(var(--p));
    font-weight: 700;
}

.equation-block {
    border: 1px solid oklch(var(--bc) / 0.14);
    border-radius: 0.95rem;
    background: linear-gradient(165deg, oklch(var(--b2) / 0.58) 0%, oklch(var(--b3) / 0.48) 100%);
    padding: 0.85rem 0.95rem;
}

.equation-block p + p {
    margin-top: 0.35rem;
}

.calculator-shell {
    padding: 0 0 1.5rem 0;
}

.calculator-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.95rem;
}

.calculator-panel {
    border: 1px solid oklch(var(--bc) / 0.2);
    border-radius: 1rem;
    background: linear-gradient(165deg, oklch(var(--b2) / 0.78) 0%, oklch(var(--b3) / 0.68) 100%);
    box-shadow: 0 12px 24px oklch(0.12 0.01 260 / 0.55);
    padding: 1rem;
}

.calculator-results {
    background: radial-gradient(circle at top right, oklch(var(--p) / 0.2) 0%, oklch(var(--b2) / 0.86) 34%, oklch(var(--b3) / 0.78) 100%);
    border-color: oklch(var(--p) / 0.34);
}

.calculator-panel h2 {
    margin-bottom: 0.85rem !important;
}

.calculator-panel .space-y-4 > * + * {
    margin-top: 0.7rem !important;
}

.calculator-panel .label-text {
    font-size: 0.82rem;
    color: oklch(var(--bc) / 0.72);
}

.calculator-panel .input,
.calculator-panel .select {
    min-height: 2.55rem;
    background-color: #1e293b;
    background: oklch(var(--b1) / 0.92);
    border-color: oklch(var(--bc) / 0.28);
    color: oklch(var(--bc) / 0.95);
}

.calculator-panel .input:focus,
.calculator-panel .select:focus {
    border-color: oklch(var(--p) / 0.6);
    box-shadow: 0 0 0 3px oklch(var(--p) / 0.18);
    outline: none;
}

.calculator-panel .select option {
    background-color: #1e293b;
    background: oklch(var(--b1) / 1);
    color: oklch(var(--bc) / 0.95);
}

.result-metric {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border: 1px solid oklch(var(--bc) / 0.17);
    border-radius: 0.3rem;
    padding: 0.58rem 0.7rem;
    margin-bottom: 0.7rem;
    background: linear-gradient(90deg, oklch(62% 0.15 165 / 0.38), transparent 100%);
}

.result-metric strong {
    font-size: 1rem;
}

.calculator-panel .form-control {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.calculator-panel .label {
    padding-bottom: 0;
    padding-top: 0;
}

.zone-row td {
    border-bottom-color: oklch(var(--bc) / 0.12);
    padding-top: 0.55rem;
    padding-bottom: 0.55rem;
}

.zone-row td:first-child {
    border-left: 4px solid transparent;
    font-weight: 600;
}

/* Zone row backgrounds — medium lightness + high chroma for dark panel backgrounds */
.zone-z1 td { background: linear-gradient(90deg, oklch(62% 0.15 165 / 0.38), transparent 95%); }
.zone-z2 td { background: linear-gradient(90deg, oklch(65% 0.18 145 / 0.38), transparent 95%); }
.zone-z3 td { background: linear-gradient(90deg, oklch(68% 0.19 100 / 0.38), transparent 95%); }
.zone-z4 td { background: linear-gradient(90deg, oklch(66% 0.21 62  / 0.40), transparent 95%); }
.zone-z5 td { background: linear-gradient(90deg, oklch(62% 0.24 32  / 0.42), transparent 95%); }
.zone-z6 td { background: linear-gradient(90deg, oklch(58% 0.26 20  / 0.44), transparent 95%); }
.zone-z7 td { background: linear-gradient(90deg, oklch(52% 0.27 12  / 0.46), transparent 95%); }

/* Left accent borders — fully saturated for clear zone identification */
.zone-z1 td:first-child { border-left-color: oklch(65% 0.20 165); }
.zone-z2 td:first-child { border-left-color: oklch(68% 0.23 145); }
.zone-z3 td:first-child { border-left-color: oklch(70% 0.23 100); }
.zone-z4 td:first-child { border-left-color: oklch(68% 0.26 62);  }
.zone-z5 td:first-child { border-left-color: oklch(64% 0.28 32);  }
.zone-z6 td:first-child { border-left-color: oklch(60% 0.30 20);  }
.zone-z7 td:first-child { border-left-color: oklch(54% 0.31 12);  }

@media (max-width: 900px) {
    .calculator-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 820px) {
    .nav-dropdown-menu {
        left: auto;
        right: 0;
        min-width: 14rem;
    }
}