:root {
    color-scheme: light;
}

html[data-theme="dark"] {
    color-scheme: dark;
}

.makeqr-calculator-bar {
    display: flex;
    min-height: 2.5rem;
    align-items: center;
    gap: 0.85rem;
    padding: 0.45rem max(1rem, calc((100vw - 1200px) / 2));
    border-bottom: 1px solid #1e3a8a;
    background: #172554;
    color: #dbeafe;
    font: 600 0.78rem/1.3 Inter, system-ui, sans-serif;
}

.makeqr-calculator-bar a {
    color: #dbeafe;
    text-decoration: none;
}

.makeqr-calculator-bar a:hover {
    color: #fff;
    text-decoration: underline;
}

.makeqr-calculator-brand {
    color: #fff !important;
    font-size: 0.9rem;
    font-weight: 800;
}

.makeqr-calculator-bar span {
    margin-left: auto;
    color: #93c5fd;
    font-size: 0.7rem;
}

.makeqr-calculator-bar button {
    display: grid;
    width: 2rem;
    height: 2rem;
    place-items: center;
    border: 1px solid rgba(255, 255, 255, 0.24);
    border-radius: 0.45rem;
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    cursor: pointer;
}

.makeqr-calculator-notice {
    max-width: 900px;
    margin: 1rem auto 2rem;
    padding: 0.85rem 1rem;
    border: 1px solid #bfdbfe;
    border-radius: 0.65rem;
    background: #eff6ff;
    color: #1e3a8a;
    font: 500 0.8rem/1.55 Inter, system-ui, sans-serif;
}

html[data-theme="dark"] body,
html[data-theme="dark"] .page-home,
html[data-theme="dark"] .page-calculator {
    --pg-bg: #070b14;
    --pg-surface: #111827;
    --pg-text: #f1f5f9;
    --pg-muted: #94a3b8;
    --pg-border: #2a3a50;
    --pg-primary-soft: #172554;
    --pg-shadow: 0 18px 45px rgba(0, 0, 0, 0.28);
    background: #070b14 !important;
    color: #cbd5e1 !important;
}

html[data-theme="dark"] .makeqr-calculator-bar {
    border-color: #27364d;
    background: #080f1e;
}

html[data-theme="dark"] .header,
html[data-theme="dark"] .page-calculator .header,
html[data-theme="dark"] .calculator,
html[data-theme="dark"] .calculator-wrapper,
html[data-theme="dark"] .history-panel,
html[data-theme="dark"] .category-section,
html[data-theme="dark"] .popular-tools,
html[data-theme="dark"] .tool-card,
html[data-theme="dark"] .category-card,
html[data-theme="dark"] .info-card,
html[data-theme="dark"] .content-card,
html[data-theme="dark"] .calculation-card,
html[data-theme="dark"] .result-card,
html[data-theme="dark"] .form-container,
html[data-theme="dark"] .calculator-content,
html[data-theme="dark"] .calculation-steps,
html[data-theme="dark"] [class$="-calculator"] {
    border-color: #2a3a50 !important;
    background: #111827 !important;
    color: #e2e8f0 !important;
    box-shadow: 0 18px 45px rgba(0, 0, 0, 0.2) !important;
}

html[data-theme="dark"] .page-hero,
html[data-theme="dark"] .hero,
html[data-theme="dark"] .calc-first,
html[data-theme="dark"] .calculator-section,
html[data-theme="dark"] .content-section,
html[data-theme="dark"] .examples-section,
html[data-theme="dark"] .related-tools {
    border-color: #2a3a50 !important;
    background: #0b1220 !important;
    color: #cbd5e1 !important;
}

html[data-theme="dark"] input,
html[data-theme="dark"] select,
html[data-theme="dark"] textarea {
    border-color: #334155 !important;
    background: #0c1525 !important;
    color: #f1f5f9 !important;
}

html[data-theme="dark"] input::placeholder,
html[data-theme="dark"] textarea::placeholder {
    color: #64748b;
}

html[data-theme="dark"] h1,
html[data-theme="dark"] h2,
html[data-theme="dark"] h3,
html[data-theme="dark"] h4,
html[data-theme="dark"] label,
html[data-theme="dark"] .logo,
html[data-theme="dark"] .tool-title,
html[data-theme="dark"] .result-value {
    color: #f8fafc !important;
}

html[data-theme="dark"] p,
html[data-theme="dark"] li,
html[data-theme="dark"] small,
html[data-theme="dark"] .subtitle,
html[data-theme="dark"] .description,
html[data-theme="dark"] .result-label,
html[data-theme="dark"] .breadcrumb {
    color: #94a3b8;
}

html[data-theme="dark"] .nav-link,
html[data-theme="dark"] .breadcrumb a {
    color: #cbd5e1 !important;
}

html[data-theme="dark"] .nav-link:hover,
html[data-theme="dark"] .nav-link.active {
    background: #172554 !important;
    color: #93c5fd !important;
}

html[data-theme="dark"] .tab-card,
html[data-theme="dark"] .calculator-tab,
html[data-theme="dark"] .btn-number {
    border-color: #334155 !important;
    background: #172033 !important;
    color: #e2e8f0 !important;
}

html[data-theme="dark"] .tab-card:hover,
html[data-theme="dark"] .calculator-tab:hover,
html[data-theme="dark"] .btn-number:hover {
    background: #1e293b !important;
}

html[data-theme="dark"] .makeqr-calculator-notice {
    border-color: #294568;
    background: #0d1c32;
    color: #bfdbfe;
}

@media (max-width: 640px) {
    .makeqr-calculator-bar {
        gap: 0.6rem;
    }

    .makeqr-calculator-bar span {
        display: none;
    }

    .makeqr-calculator-bar button {
        margin-left: auto;
    }
}