:root {
    --color-primary: #2d7a4d;
    --color-primary-dark: #236340;
    --color-primary-light: #e8f5ee;
    --color-text: #1a1a2e;
    --color-text-muted: #5c6370;
    --color-bg: #fafbfc;
    --color-white: #ffffff;
    --color-border: #e8ecf0;
    --color-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
    --radius: 16px;
    --radius-sm: 10px;
    --container: 1200px;
    --font: 'Inter', system-ui, -apple-system, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: var(--font);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { line-height: 1.25; margin-top: 0; }
a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 1.25rem;
}

.visually-hidden {
    position: absolute;
    width: 1px; height: 1px;
    padding: 0; margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    border: 0;
}

.text-accent { color: var(--color-primary); }
.text-muted { color: var(--color-text-muted); }

/* Site layout */
.site { min-height: 100vh; display: flex; flex-direction: column; }
.site-main { flex: 1; }

/* Header */
.site-header {
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.site-header__inner {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 0.875rem 0;
    flex-wrap: wrap;
}

.site-logo { text-decoration: none; color: inherit; }
.site-logo__name {
    display: block;
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--color-primary);
}
.site-logo__tagline {
    display: block;
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.site-nav {
    display: flex;
    gap: 1.25rem;
    flex: 1;
}

.site-nav a {
    color: var(--color-text);
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
}
.site-nav a:hover { color: var(--color-primary); }

.header-search {
    display: flex;
    align-items: center;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 999px;
    padding: 0.25rem 0.25rem 0.25rem 1rem;
    min-width: 200px;
}

.header-search input {
    border: none;
    background: transparent;
    outline: none;
    font-size: 0.875rem;
    flex: 1;
    min-width: 0;
}

.header-search button {
    border: none;
    background: transparent;
    cursor: pointer;
    padding: 0.35rem 0.6rem;
}

.nav-toggle {
    display: none;
    border: 1px solid var(--color-border);
    background: var(--color-white);
    border-radius: var(--radius-sm);
    padding: 0.4rem 0.6rem;
    cursor: pointer;
}

/* Hero */
.hero {
    background: linear-gradient(180deg, var(--color-white) 0%, var(--color-bg) 100%);
    padding: 3rem 0 2rem;
}

.hero__inner {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 2rem;
    align-items: center;
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    margin-bottom: 1rem;
}

.hero__subtitle {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    max-width: 540px;
    margin-bottom: 2rem;
}

.hero-illustration {
    display: flex;
    gap: 1rem;
    font-size: 4rem;
    background: var(--color-primary-light);
    padding: 2rem;
    border-radius: var(--radius);
}

/* Hero search */
.hero-search {
    position: relative;
}

.tool-search {
    position: relative;
}

.tool-search__form {
    display: flex;
    align-items: center;
    overflow: hidden;
}

.tool-search__input {
    flex: 1;
    border: none;
    outline: none;
    font-family: inherit;
    min-width: 0;
    background: transparent;
}

.tool-search__btn {
    border: none;
    cursor: pointer;
    flex-shrink: 0;
}

.tool-search--hero .tool-search__form {
    background: var(--color-white);
    border-radius: var(--radius);
    box-shadow: var(--color-shadow);
    border: 1px solid var(--color-border);
    max-width: 640px;
}

.tool-search--hero .tool-search__input {
    padding: 1.125rem 1.25rem;
    font-size: 1rem;
}

.tool-search--hero .tool-search__btn {
    background: var(--color-primary);
    color: white;
    padding: 0 1.5rem;
    font-size: 1.25rem;
}

.tool-search--hero .tool-search__btn:hover {
    background: var(--color-primary-dark);
}

.tool-search--header .tool-search__form {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 999px;
    padding: 0.25rem 0.25rem 0.25rem 1rem;
    min-width: 200px;
}

.tool-search--header .tool-search__input {
    font-size: 0.875rem;
}

.tool-search--header .tool-search__btn {
    background: transparent;
    padding: 0.35rem 0.6rem;
}

.tool-search__results {
    position: absolute;
    top: calc(100% + 0.35rem);
    left: 0;
    right: 0;
    margin: 0;
    padding: 0.35rem;
    list-style: none;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    box-shadow: var(--color-shadow);
    z-index: 200;
    max-height: 320px;
    overflow-y: auto;
}

.tool-search__result {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
    padding: 0.65rem 0.75rem;
    border: none;
    background: transparent;
    border-radius: 8px;
    cursor: pointer;
    text-align: left;
    font-family: inherit;
}

.tool-search__result:hover,
.tool-search__result:focus-visible {
    background: var(--color-primary-light);
    outline: none;
}

.tool-search__result-icon {
    font-size: 1.35rem;
    line-height: 1;
}

.tool-search__result-body {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
    min-width: 0;
    flex: 1;
}

.tool-search__result-title {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-text);
}

.tool-search__result-desc {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.tool-search__empty {
    position: absolute;
    top: calc(100% + 0.35rem);
    left: 0;
    right: 0;
    padding: 0.75rem 1rem;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    box-shadow: var(--color-shadow);
    z-index: 200;
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.hero-search__form {
    display: flex;
    background: var(--color-white);
    border-radius: var(--radius);
    box-shadow: var(--color-shadow);
    border: 1px solid var(--color-border);
    overflow: hidden;
    max-width: 640px;
}

.hero-search__input {
    flex: 1;
    border: none;
    padding: 1.125rem 1.25rem;
    font-size: 1rem;
    outline: none;
    font-family: inherit;
}

.hero-search__btn {
    background: var(--color-primary);
    border: none;
    color: white;
    padding: 0 1.5rem;
    font-size: 1.25rem;
    cursor: pointer;
}
.hero-search__btn:hover { background: var(--color-primary-dark); }

/* Sections */
.section { padding: 3rem 0; }
.section--muted { background: var(--color-white); }
.section-title { font-size: 1.5rem; margin-bottom: 1.5rem; }

/* Tool grid */
.tool-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.25rem;
}

.tool-card {
    display: flex;
    flex-direction: column;
    padding: 1.5rem;
    border-radius: var(--radius);
    text-decoration: none;
    color: inherit;
    border: 1px solid var(--color-border);
    transition: transform 0.15s, box-shadow 0.15s;
    position: relative;
    min-height: 180px;
}

.tool-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--color-shadow);
    text-decoration: none;
}

.tool-card__icon { font-size: 2rem; margin-bottom: 0.75rem; }
.tool-card__title { font-size: 1.1rem; margin: 0 0 0.5rem; }
.tool-card__desc { font-size: 0.875rem; color: var(--color-text-muted); flex: 1; margin: 0; }
.tool-card__arrow { color: var(--color-primary); font-weight: 600; margin-top: 0.75rem; }
.tool-card--soon { opacity: 0.75; }

.card-green { background: #eef8f1; }
.card-blue { background: #eef4fc; }
.card-yellow { background: #fef9e8; }
.card-purple { background: #f3eef9; }
.card-pink { background: #fceef5; }
.card-orange { background: #fef3e8; }

.badge {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    text-transform: uppercase;
}
.badge--soon { background: var(--color-primary-light); color: var(--color-primary); }

/* Categories */
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 1rem;
}

.category-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 1.25rem 1rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    text-decoration: none;
    color: inherit;
    transition: box-shadow 0.15s;
}
.category-card:hover { box-shadow: var(--color-shadow); text-decoration: none; }
.category-card__icon { font-size: 1.75rem; }
.category-card__name { font-weight: 600; font-size: 0.9rem; margin-top: 0.5rem; }
.category-card__count { font-size: 0.75rem; color: var(--color-text-muted); }

/* Trust section */
.trust-section {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    background: var(--color-primary-light);
    padding: 2rem;
    border-radius: var(--radius);
    flex-wrap: wrap;
}

.trust-section__content {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    font-size: 2rem;
}

.trust-section h2 { font-size: 1.25rem; margin-bottom: 0.25rem; }
.trust-section p { margin: 0; color: var(--color-text-muted); font-size: 0.95rem; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    cursor: pointer;
    border: 2px solid transparent;
}
.btn--primary { background: var(--color-primary); color: white; }
.btn--primary:hover { background: var(--color-primary-dark); text-decoration: none; color: white; }
.btn--outline { background: white; border-color: var(--color-primary); color: var(--color-primary); }
.btn--outline:hover { background: var(--color-primary-light); text-decoration: none; }

/* Footer */
.site-footer {
    background: var(--color-white);
    border-top: 1px solid var(--color-border);
    padding: 3rem 0 1.5rem;
    margin-top: 2rem;
}

.site-footer__grid {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 2rem;
}

.site-footer h3 { font-size: 0.9rem; margin-bottom: 0.75rem; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 0.4rem; }
.site-footer a { color: var(--color-text-muted); font-size: 0.875rem; text-decoration: none; }
.site-footer a:hover { color: var(--color-primary); }
.site-footer__desc { font-size: 0.875rem; color: var(--color-text-muted); }

.site-footer__bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
    font-size: 0.8rem;
    color: var(--color-text-muted);
    flex-wrap: wrap;
    gap: 1rem;
}

.site-footer__legal { display: flex; gap: 1rem; }

/* Tool pages */
.page-tool { padding: 1.5rem 0 3rem; }
.page-content { padding: 2rem 0 3rem; }
.page-intro { color: var(--color-text-muted); margin-bottom: 2rem; }

.breadcrumbs ol {
    display: flex;
    flex-wrap: wrap;
    list-style: none;
    padding: 0;
    margin: 0 0 1.5rem;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.breadcrumbs li { display: flex; align-items: center; }
.breadcrumb-sep { margin: 0 0.5rem; }
.breadcrumbs a { color: var(--color-text-muted); text-decoration: none; }
.breadcrumbs a:hover { color: var(--color-primary); }

.tool-header {
    display: flex;
    gap: 1.25rem;
    margin-bottom: 2rem;
    align-items: flex-start;
}

.tool-header__icon {
    width: 56px; height: 56px;
    background: var(--color-primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    flex-shrink: 0;
}

.tool-header h1 { font-size: 2rem; margin-bottom: 0.5rem; }
.tool-header__intro { color: var(--color-text-muted); margin: 0 0 0.5rem; }
.tool-header__trust { font-size: 0.85rem; color: var(--color-primary); font-weight: 500; margin: 0; }

/* Calculator shell */
.calculator-shell {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 1.5rem;
    align-items: start;
    margin-bottom: 3rem;
}

.calculator-shell__results {
    position: sticky;
    top: 5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.form-card, .result-card, .assumptions-card, .content-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--color-shadow);
}

.form-card__section-title {
    font-size: 1rem;
    margin: 1.5rem 0 1rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--color-border);
}
.form-card__section-title:first-child {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

/* Inputs */
.input-group { margin-bottom: 1.25rem; }
.input-group__label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.4rem;
}

.input-group__field {
    display: flex;
    align-items: center;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: var(--color-bg);
}

.input-group__input {
    flex: 1;
    border: none;
    background: transparent;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    font-family: inherit;
    outline: none;
    min-width: 0;
}

.input-group__suffix {
    padding: 0 1rem;
    color: var(--color-text-muted);
    font-size: 0.875rem;
    white-space: nowrap;
}

.input-group__slider {
    width: 100%;
    margin-top: 0.5rem;
    accent-color: var(--color-primary);
}

.input-group__help {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin: 0.35rem 0 0;
}

.input-group__select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 1rem;
    background: var(--color-bg);
}

.input-group--readonly {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background: var(--color-bg);
    border-radius: var(--radius-sm);
}

.input-group--readonly-inline {
    justify-content: flex-end;
    margin-bottom: 0;
}

.input-group__readonly-value {
    font-weight: 600;
    color: var(--color-primary);
}

/* Segmented control */
.segmented-control {
    display: flex;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.segmented-control__btn {
    flex: 1;
    padding: 0.6rem 1rem;
    border: none;
    background: var(--color-bg);
    cursor: pointer;
    font-family: inherit;
    font-size: 0.9rem;
}

.segmented-control__btn.is-active {
    background: var(--color-primary);
    color: white;
    font-weight: 600;
}

/* Result card */
.result-card__label {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin: 0 0 0.25rem;
}

.result-card__value {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--color-primary);
    margin: 0 0 0.5rem;
}

.result-card__subvalue {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 0.35rem 0.5rem;
    margin: 0 0 0.35rem;
    line-height: 1.4;
}

.result-card__subvalue-label {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.result-card__subvalue-amount {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-text);
}

.result-card__subvalue-note {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin: 0 0 1.25rem;
}

.result-card__main:has(.result-card__subvalue) .result-card__value {
    margin-bottom: 0.5rem;
}

.result-card__main:not(:has(.result-card__subvalue)) .result-card__value {
    margin-bottom: 1.25rem;
}

.result-card__main:has(.result-card__subvalue):not(:has(.result-card__subvalue-note)) .result-card__subvalue {
    margin-bottom: 1.25rem;
}

.result-card__metrics {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}

.result-card__metric {
    background: var(--color-bg);
    padding: 0.75rem;
    border-radius: var(--radius-sm);
}

.result-card__metric-label {
    display: block;
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.result-card__metric-value {
    font-weight: 600;
    font-size: 0.95rem;
}

.result-card__progress { margin-bottom: 1rem; }
.result-card__progress-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    margin-bottom: 0.4rem;
}

.progress-bar {
    height: 8px;
    background: var(--color-border);
    border-radius: 999px;
    overflow: hidden;
}

.progress-bar__fill {
    height: 100%;
    border-radius: 999px;
    background: var(--color-primary);
    transition: width 0.2s;
}

.progress-bar__fill--low { background: #4caf50; }
.progress-bar__fill--normal { background: #ff9800; }
.progress-bar__fill--high { background: #e53935; }

/* Mobile calculator footer */
.calculator-mobile-footer {
    display: none;
}

.calculator-mobile-footer__bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 200;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
    padding: 0.85rem 1rem calc(0.85rem + env(safe-area-inset-bottom, 0px));
    border: none;
    background: var(--color-primary);
    color: white;
    font-family: inherit;
    text-align: left;
    cursor: pointer;
    box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.15);
}

.calculator-mobile-footer__primary {
    flex: 1;
    min-width: 0;
}

.calculator-mobile-footer__secondary {
    display: none;
    flex-direction: column;
    align-items: flex-end;
    min-width: 0;
}

.calculator-mobile-footer__label {
    display: block;
    font-size: 0.7rem;
    opacity: 0.9;
    line-height: 1.2;
}

.calculator-mobile-footer__value {
    display: block;
    font-size: 1.35rem;
    font-weight: 700;
    line-height: 1.2;
    white-space: nowrap;
}

.calculator-mobile-footer__secondary-value {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    line-height: 1.2;
    white-space: nowrap;
}

.calculator-mobile-footer__chevron {
    flex-shrink: 0;
    font-size: 0.85rem;
    opacity: 0.85;
    padding-left: 0.25rem;
}

.calculator-mobile-footer__backdrop {
    position: fixed;
    inset: 0;
    z-index: 198;
    border: none;
    background: rgba(0, 0, 0, 0.45);
    cursor: pointer;
    animation: calculator-footer-fade-in 0.2s ease;
}

.calculator-mobile-footer__sheet {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 199;
    max-height: 0;
    overflow: hidden;
    background: var(--color-bg);
    border-radius: var(--radius) var(--radius) 0 0;
    box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.18);
    transition: max-height 0.3s ease;
    pointer-events: none;
}

.calculator-mobile-footer.is-open .calculator-mobile-footer__sheet {
    max-height: min(85vh, 720px);
    overflow-y: auto;
    pointer-events: auto;
    padding-bottom: calc(4.5rem + env(safe-area-inset-bottom, 0px));
}

.calculator-mobile-footer__sheet-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 1;
}

.calculator-mobile-footer__sheet-title {
    font-size: 1rem;
    margin: 0;
}

.calculator-mobile-footer__close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border: none;
    border-radius: 50%;
    background: var(--color-bg);
    color: var(--color-text-muted);
    font-size: 0.9rem;
    cursor: pointer;
}

.calculator-mobile-footer__sheet-body {
    padding: 1rem 1.25rem 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

@keyframes calculator-footer-fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

.result-card__desc {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin: 0;
}

.scenario-box {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--color-border);
}

.scenario-box h3 { font-size: 0.95rem; margin-bottom: 0.5rem; }
.scenario-box p { font-size: 0.875rem; margin: 0 0 0.5rem; }
.scenario-box__note { font-size: 0.8rem !important; color: var(--color-text-muted); }

.result-card__net-cost {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    margin: 0 0 0.5rem;
}

.result-card__net-cost-label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-muted);
}

.assumptions-card h3 { font-size: 1rem; margin-bottom: 0.75rem; }
.assumptions-card ul {
    margin: 0;
    padding-left: 1.25rem;
    font-size: 0.875rem;
    color: var(--color-text-muted);
}
.assumptions-card li { margin-bottom: 0.35rem; }

.warning-card {
    background: #fff8e6;
    border: 1px solid #f0d78c;
    border-radius: var(--radius);
    padding: 1.25rem 1.5rem;
    margin-bottom: 1rem;
    box-shadow: var(--color-shadow);
}

.warning-card h3 { font-size: 1rem; margin: 0 0 0.75rem; color: #8a5b00; }
.warning-card ul { margin: 0; padding-left: 1.25rem; color: var(--color-text-muted); font-size: 0.9rem; }
.warning-card li { margin-bottom: 0.35rem; }

.result-table-wrap { overflow-x: auto; }
.result-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}
.result-table th,
.result-table td {
    padding: 0.6rem 0.75rem;
    border-bottom: 1px solid var(--color-border);
    text-align: left;
}
.result-table th {
    color: var(--color-text-muted);
    font-weight: 600;
    background: var(--color-bg);
}

.cost-breakdown { display: flex; flex-direction: column; gap: 0.85rem; }
.cost-breakdown__header {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.35rem;
    font-size: 0.9rem;
}
.cost-breakdown__value { font-weight: 600; white-space: nowrap; }

.section-header-row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.25rem;
    flex-wrap: wrap;
}
.section-header-row .section-title { margin-bottom: 0; }
.section-link {
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
}
.section-link:hover { text-decoration: underline; }

.tool-card__cta {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-top: 0.5rem;
}

.calculator-mobile-footer__details {
    flex-shrink: 0;
    font-size: 0.75rem;
    font-weight: 600;
    opacity: 0.95;
    white-space: nowrap;
}

.category-intro { margin-bottom: 1.5rem; }
.category-intro p { margin: 0; color: var(--color-text-muted); }

.category-ingress {
    margin: 0.75rem 0 0;
    padding: 1rem 1.25rem;
    border-left: 4px solid var(--color-primary);
    background: var(--color-primary-light);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-size: 1.05rem;
    color: var(--color-text-muted);
}

.category-seo { margin-top: 2.5rem; }
.category-seo p { color: var(--color-text-muted); line-height: 1.65; }

.seo-article__lead { font-size: 1.25rem; margin-bottom: 1.25rem; }
.seo-article__section { margin-top: 1.5rem; }
.seo-article__section h3 { font-size: 1.1rem; margin-bottom: 0.5rem; }
.seo-article__section p { color: var(--color-text-muted); line-height: 1.65; }
.methodology-card { margin-bottom: 1.5rem; }
.methodology-card__note { font-size: 0.875rem; color: var(--color-text-muted); margin-top: 0.75rem; }

.advanced-settings {
    margin-top: 1rem;
    padding-top: 0.5rem;
    border-top: 1px dashed var(--color-border);
}
.advanced-settings summary {
    cursor: pointer;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 0.75rem;
}

.input-group__date {
    width: 100%;
    padding: 0.65rem 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-family: inherit;
}

.breakdown-list__row {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--color-border);
}
.breakdown-list__row:last-child { border-bottom: none; }
.breakdown-list__label { color: var(--color-text-muted); }
.breakdown-list__value { font-weight: 600; }

.timeline { margin: 0; padding: 0; }
.timeline__item {
    display: flex;
    gap: 1rem;
    padding-bottom: 1.25rem;
    position: relative;
}
.timeline__item:not(:last-child)::before {
    content: "";
    position: absolute;
    left: 0.45rem;
    top: 1.25rem;
    bottom: 0;
    width: 2px;
    background: var(--color-border);
}
.timeline__marker {
    width: 1rem;
    height: 1rem;
    border-radius: 50%;
    background: var(--color-primary);
    flex-shrink: 0;
    margin-top: 0.2rem;
}
.timeline__label { display: block; }
.timeline__date { font-size: 0.9rem; color: var(--color-text-muted); }

/* FAQ */
.faq { margin: 3rem 0; }
.faq__list { display: flex; flex-direction: column; gap: 0.5rem; }

.faq__item {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.faq__item summary {
    padding: 1rem 1.25rem;
    cursor: pointer;
    font-weight: 500;
    list-style: none;
}

.faq__item summary::-webkit-details-marker { display: none; }

.faq__answer {
    padding: 0 1.25rem 1rem;
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.faq__answer p { margin: 0; }

.related-tools { margin-bottom: 2rem; }
.related-tools__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1rem;
}

/* Trust banner */
.trust-banner {
    background: var(--color-primary-light);
    padding: 1rem 1.25rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1.5rem;
}

.trust-banner__content {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
    font-size: 1.25rem;
}

.trust-banner strong { display: block; font-size: 0.9rem; }
.trust-banner p { margin: 0; font-size: 0.85rem; color: var(--color-text-muted); }

/* Content pages */
.content-card h2 { font-size: 1.15rem; margin: 1.5rem 0 0.75rem; }
.content-card h2:first-of-type { margin-top: 0; }
.content-card ul { color: var(--color-text-muted); }

.not-found { text-align: center; padding: 4rem 0; }
.not-found__actions { display: flex; gap: 1rem; justify-content: center; margin-top: 2rem; flex-wrap: wrap; }

.search-results-info { margin-bottom: 1.5rem; color: var(--color-text-muted); }
.tax-rate-info { margin-top: 0.5rem; font-size: 0.8rem; color: var(--color-text-muted); }

/* Blazor error UI */
#blazor-error-ui {
    background: #ffffe0;
    bottom: 0;
    box-shadow: 0 -1px 4px rgba(0,0,0,0.2);
    display: none;
    left: 0;
    padding: 0.6rem 1.25rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
}
#blazor-error-ui .dismiss { cursor: pointer; position: absolute; right: 0.75rem; top: 0.5rem; }

/* Responsive */
@media (max-width: 900px) {
    .calculator-shell { grid-template-columns: 1fr; }
    .calculator-shell__results { display: none; }
    .calculator-shell { margin-bottom: 1rem; }
    .page-tool:has(.calculator-mobile-footer) { padding-bottom: 5.5rem; }
    .calculator-mobile-footer { display: block; }
    .calculator-mobile-footer__secondary { display: flex; }
    .hero__inner { grid-template-columns: 1fr; }
    .hero__illustration { display: none; }
    .site-footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
    .nav-toggle { display: block; }
    .site-nav {
        display: none;
        width: 100%;
        flex-direction: column;
        gap: 0.75rem;
    }
    .site-nav.is-open { display: flex; }
    .tool-search--header { width: 100%; order: 3; }
    .site-header__inner { gap: 0.75rem; }
    .result-card__metrics { grid-template-columns: 1fr; }
    .site-footer__grid { grid-template-columns: 1fr; }
    .trust-section { flex-direction: column; text-align: center; }
    .trust-section__content { flex-direction: column; align-items: center; }
}