:root {
    color-scheme: dark;
    font-family: "Vazirmatn", Tahoma, sans-serif;
    font-synthesis: none;
    --abzkit-font: "Vazirmatn", Tahoma, sans-serif;
    --abzkit-ink: #f1f5f9;
    --abzkit-muted: #94a3b8;
    --abzkit-primary: #4f46e5;
    --abzkit-secondary: #0891b2;
    --abzkit-surface: #0b1120;
    --abzkit-card: #111827;
    --abzkit-surface-secondary: #1f2937;
    --abzkit-border: #334155;
    --abzkit-border-strong: #475569;
    --abzkit-result-surface: #1e293b;
    --abzkit-focus: #4f46e5;
    --abzkit-success: #059669;
    --abzkit-warning: #d97706;
    --abzkit-danger: #f87171;
    --abzkit-shadow: rgb(0 0 0 / 24%);
    --bs-body-bg: var(--abzkit-surface);
    --bs-body-color: var(--abzkit-ink);
    --bs-border-color: var(--abzkit-border);
    --color-background: var(--abzkit-surface);
    --color-surface: var(--abzkit-card);
    --color-surface-secondary: var(--abzkit-surface-secondary);
    --color-border: var(--abzkit-border);
    --color-text: var(--abzkit-ink);
    --color-text-muted: var(--abzkit-muted);
    --color-text-subtle: #cbd5e1;
    --color-input-background: var(--abzkit-surface-secondary);
    --color-input-text: var(--abzkit-ink);
    --color-placeholder: var(--abzkit-muted);
    --color-accent: #6366f1;
}

html[data-theme="light"] {
    color-scheme: light;
    --abzkit-ink: #172033;
    --abzkit-muted: #64748b;
    --abzkit-surface: #f4f7fb;
    --abzkit-card: #fff;
    --abzkit-surface-secondary: #f8fafc;
    --abzkit-border: #e2e8f0;
    --abzkit-border-strong: #c7d2fe;
    --abzkit-result-surface: #eef2ff;
    --abzkit-danger: #b42318;
    --abzkit-shadow: rgb(23 32 51 / 8%);
    --bs-body-bg: var(--abzkit-surface);
    --bs-body-color: var(--abzkit-ink);
    --bs-border-color: var(--abzkit-border);
    --color-background: var(--abzkit-surface);
    --color-surface: var(--abzkit-card);
    --color-surface-secondary: var(--abzkit-surface-secondary);
    --color-border: var(--abzkit-border);
    --color-text: var(--abzkit-ink);
    --color-text-muted: var(--abzkit-muted);
    --color-text-subtle: #475569;
    --color-input-background: var(--abzkit-surface-secondary);
    --color-input-text: var(--abzkit-ink);
    --color-placeholder: var(--abzkit-muted);
    --color-accent: #4f46e5;
}

@font-face {
    font-family: "Vazirmatn";
    src: url("../fonts/Vazirmatn-Variable.woff2") format("woff2");
    font-style: normal;
    font-weight: 100 900;
    font-display: swap;
}

body {
    min-height: 100vh;
    color: var(--abzkit-ink);
    background: var(--abzkit-surface);
    font-family: var(--abzkit-font);
    font-size: 1rem;
    line-height: 1.75;
    overflow-wrap: break-word;
    overflow-x: hidden;
}

button,
input,
select,
textarea {
    font: inherit;
}

.navbar,
.btn,
.form-control,
.form-select {
    font-family: var(--abzkit-font);
}

.navbar-brand,
.btn {
    font-weight: 600;
}

.small,
small {
    font-size: 0.875rem;
}

a {
    text-underline-offset: 0.2em;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible {
    outline: 3px solid var(--abzkit-focus);
    outline-offset: 2px;
}

.hero-section {
    background: linear-gradient(180deg, #f5f8ff 0%, #fff 100%);
    padding-block: 2.75rem;
}

.hero-panel {
    max-width: 960px;
    margin-inline: auto;
    background: linear-gradient(135deg, #eaf1ff 0%, #f8faff 70%, #fff 100%);
}

.hero-panel h1 {
    max-width: 15ch;
    color: var(--abzkit-ink);
    font-size: clamp(2rem, 5vw, 3.25rem);
    line-height: 1.4;
    text-wrap: balance;
}

.hero-copy {
    max-width: 52ch;
    color: var(--abzkit-muted);
    line-height: 1.9;
    font-size: 1.125rem;
}

.eyebrow {
    color: var(--abzkit-primary);
    font-size: 0.9rem;
    font-weight: 700;
}

.tool-filters {
    box-shadow: 0 0.5rem 1.5rem rgb(23 32 51 / 4%);
}

.tool-card {
    min-width: 0;
    border-color: var(--abzkit-border);
    box-shadow: 0 0.5rem 1.5rem rgb(23 32 51 / 3%);
    transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.tool-card:hover {
    border-color: var(--abzkit-border-strong);
    box-shadow: 0 0.75rem 1.75rem rgb(23 32 51 / 8%);
    transform: translateY(-2px);
}

.tool-icon {
    display: grid;
    width: 2.75rem;
    height: 2.75rem;
    place-items: center;
    border-radius: 0.9rem;
    background: var(--abzkit-result-surface);
    color: var(--abzkit-primary);
    font-size: 1.5rem;
}

.tool-card .card-body > p:not(.small) {
    font-size: 0.95rem;
    line-height: 1.8;
}

.tool-card h3,
.section-heading h2,
.about-section h2 {
    line-height: 1.5;
    text-wrap: balance;
}

.tool-unavailable {
    color: var(--abzkit-muted);
    font-size: 0.875rem;
}

.empty-state {
    color: var(--abzkit-muted);
}

.about-section {
    background: var(--abzkit-surface);
}

.benefit-card {
    border-color: var(--abzkit-border) !important;
}

.unit-converter-hero {
    background: linear-gradient(180deg, #eef2ff 0%, var(--abzkit-surface) 72%);
}

.unit-back-link {
    display: inline-block;
    font-weight: 600;
}

.unit-converter-panel {
    border: 1px solid #dbe4ff;
    border-radius: 1.25rem;
    background: radial-gradient(circle at 85% 20%, rgb(8 145 178 / 12%), transparent 34%), linear-gradient(135deg, #eef2ff 0%, #fff 72%);
    box-shadow: 0 1rem 2.5rem rgb(79 70 229 / 8%);
}

.unit-converter-panel h1 {
    line-height: 1.5;
}

.unit-converter-card,
.unit-info-card,
.date-converter-card,
.date-info-card,
.age-calculator-card,
.loan-calculator-card {
    border-color: var(--abzkit-border) !important;
    background: #fff;
    box-shadow: 0 0.75rem 1.75rem rgb(23 32 51 / 6%);
}

.unit-example-card,
.date-example-card {
    border-color: var(--abzkit-border) !important;
    background: #fff;
}

.date-example-card {
    overflow-wrap: anywhere;
}

.date-fields {
    display: grid;
    width: min(100%, 18rem);
    grid-template-columns: minmax(0, 0.55fr) minmax(0, 0.95fr) minmax(0, 0.75fr);
    align-items: end;
    gap: 0.375rem;
}

.date-field {
    display: flex;
    min-width: 0;
    flex-direction: column;
    gap: 0.35rem;
}

.date-field-label {
    margin-bottom: 0;
    color: var(--abzkit-muted);
    font-size: 0.8rem;
    font-weight: 600;
    line-height: 1.4;
}

.date-field .form-select,
.date-field .form-control {
    width: 100%;
    min-width: 0;
    height: 2.75rem;
    padding-inline: 0.55rem;
    border-color: var(--abzkit-border-strong);
    border-radius: 0.65rem;
    font-size: 0.95rem;
}

.date-field .form-select {
    padding-inline-end: 1.7rem;
    background-position: left 0.55rem center;
    background-size: 0.8rem 0.625rem;
}

.date-field .form-select:focus,
.date-field .form-control:focus {
    border-color: var(--abzkit-primary);
    box-shadow: 0 0 0 0.2rem rgb(79 70 229 / 14%);
}

.date-field .form-control::placeholder {
    color: #98a3b5;
}

.unit-example-card h3,
.date-example-card h3 {
    color: var(--abzkit-primary);
}

.unit-result-panel,
.date-result-panel,
.age-result-panel,
.loan-result-panel {
    min-width: 0;
    border: 1px dashed var(--abzkit-border-strong);
    background: var(--abzkit-surface);
    overflow-wrap: anywhere;
}

.unit-result-panel {
    min-height: 8rem;
}

.date-result-panel {
    min-height: 9rem;
}

.loan-result-panel {
    min-height: 9rem;
}

.unit-result-panel[data-has-result="true"],
.date-result-panel[data-has-result="true"],
.age-result-panel[data-has-result="true"],
.loan-result-panel[data-has-result="true"] {
    border-style: solid;
    border-color: var(--abzkit-border-strong);
    background: var(--abzkit-result-surface);
}

.unit-result-panel[data-has-result="false"] .unit-result-value {
    color: var(--abzkit-muted);
}

.unit-result-value,
.date-result-value {
    min-width: 0;
    color: var(--abzkit-ink);
    font-size: clamp(1.75rem, 6vw, 2.75rem);
    font-weight: 700;
    line-height: 1.4;
}

.date-result-value {
    display: block;
    overflow-wrap: anywhere;
}

.unit-result-symbol {
    overflow-wrap: anywhere;
    color: var(--abzkit-muted);
    font-size: 1.125rem;
}

.unit-error,
.date-error,
.age-error,
.loan-error {
    color: var(--abzkit-danger);
    font-weight: 600;
}

.unit-copy-status {
    font-size: 0.9rem;
}

.unit-formula {
    color: var(--abzkit-muted);
    line-height: 1.8;
}

.date-result-value {
    display: block;
    min-width: 0;
    color: var(--abzkit-ink);
    font-size: clamp(1.75rem, 6vw, 2.75rem);
    font-weight: 700;
    line-height: 1.4;
    overflow-wrap: anywhere;
}

.date-result-panel[data-has-result="false"] .date-result-value {
    color: var(--abzkit-muted);
}

.date-weekday,
.date-difference {
    color: var(--abzkit-muted);
    line-height: 1.8;
}

.age-calculator-page,
.age-calculator-page .container,
.age-calculator-page .row > [class*="col-"] {
    min-width: 0;
}

.age-form-field {
    display: flex;
    flex-direction: column;
}

.age-form-field .date-fields {
    width: 100%;
}

.age-form-hint {
    min-height: 3.25rem;
    line-height: 1.6;
}

.age-primary-result {
    color: var(--abzkit-primary);
    font-size: clamp(1.4rem, 4vw, 2rem);
    font-weight: 700;
    line-height: 1.6;
    overflow-wrap: anywhere;
}

.age-empty-state,
.age-detail-card span,
.loan-empty-state,
.loan-metric-card span {
    color: var(--abzkit-muted);
}

.age-detail-card,
.loan-metric-card {
    display: flex;
    min-width: 0;
    flex-direction: column;
    justify-content: space-between;
    gap: 0.4rem;
    width: 100%;
    min-height: 5.75rem;
    padding: 0.9rem;
    border: 1px solid var(--abzkit-border);
    border-radius: 0.85rem;
    background: #fff;
}

.age-detail-card strong,
.loan-metric-card strong {
    overflow-wrap: anywhere;
    font-size: 1rem;
}

.loan-summary {
    color: var(--abzkit-ink);
    font-weight: 600;
    line-height: 1.9;
}

.loan-note {
    color: var(--abzkit-muted);
    font-size: 0.9rem;
    line-height: 1.8;
}

.deposit-table-scroll {
    max-width: 100%;
    max-height: 34rem;
    border: 1px solid var(--abzkit-border);
    border-radius: 0.85rem;
    overscroll-behavior-x: contain;
}

.deposit-details-table th,
.deposit-details-table td {
    min-width: 7rem;
    white-space: nowrap;
}

.deposit-details-table tfoot th {
    color: var(--abzkit-ink);
    background: var(--abzkit-result-surface);
}

.deposit-details-table thead th {
    color: var(--abzkit-ink);
    background: #eef2ff;
    font-weight: 700;
}

.deposit-details-table td,
.deposit-details-table th {
    border-color: var(--abzkit-border);
}

.deposit-details-table tbody tr:hover td {
    background: #f8faff;
}

.deposit-guide p,
.gold-guide p {
    line-height: 1.9;
}

.deposit-formula code,
.gold-formula code {
    display: inline-block;
    max-width: 100%;
    padding: 0.5rem 0.75rem;
    border-radius: 0.6rem;
    background: var(--abzkit-surface);
    color: var(--abzkit-primary);
    white-space: normal;
}

.gold-mode-toggle .btn {
    flex: 1 1 auto;
    min-height: 2.8rem;
}

.gold-final-wrap {
    padding: 1.1rem 1.25rem;
    border: 1px solid var(--abzkit-border-strong);
    border-inline-start: 4px solid var(--abzkit-primary);
    border-radius: 0.9rem;
    background: #fff;
    box-shadow: 0 0.4rem 1rem rgb(23 32 51 / 5%);
}

.gold-final-price {
    display: block;
    color: var(--abzkit-primary);
    font-size: clamp(1.55rem, 4.5vw, 2.25rem);
    font-weight: 700;
    line-height: 1.5;
    overflow-wrap: anywhere;
}

.gold-breakdown {
    display: flex;
    min-width: 0;
    flex-direction: column;
    gap: 0.5rem;
}

.gold-breakdown-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 0.5rem;
    padding: 0.7rem 0.95rem;
    border: 1px solid var(--abzkit-border);
    border-radius: 0.8rem;
    background: #fff;
}

.gold-breakdown-row span {
    color: var(--abzkit-muted);
    font-size: 0.9rem;
}

.gold-breakdown-row strong {
    overflow-wrap: anywhere;
}

.age-guide .date-info-card {
    min-width: 0;
    overflow-wrap: anywhere;
}

.tool-form-group {
    min-width: 0;
    padding: 1rem;
    border: 1px solid var(--abzkit-border);
    border-radius: 0.9rem;
    background: #fff;
}

.date-converter-card .card-body,
.age-calculator-card .card-body,
.unit-converter-card .card-body,
.loan-calculator-card .card-body {
    padding: clamp(1rem, 3vw, 1.75rem) !important;
}

.date-converter-card .form-label,
.age-calculator-card .form-label,
.unit-converter-card .form-label,
.loan-calculator-card .form-label {
    color: var(--abzkit-ink);
}

.date-converter-card > .card-body > .row,
.age-calculator-card .age-form-field {
    align-items: stretch;
}

.date-form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-areas:
        "target-calendar source-calendar"
        "second-date source-date"
        "actions actions"
        "results results";
    gap: 1rem;
    margin: 0;
    direction: ltr;
}

.date-form-grid > * {
    width: auto;
    max-width: 100%;
    min-width: 0;
    margin: 0;
    padding: 0;
    direction: rtl;
}

.date-form-grid > .date-source-calendar-card {
    grid-area: source-calendar;
}

.date-form-grid > .date-target-calendar-card {
    grid-area: target-calendar;
}

.date-form-grid > .date-source-card {
    grid-area: source-date;
}

.date-form-grid > .date-second-card {
    grid-area: second-date;
}

.date-form-grid > .date-form-actions {
    grid-area: actions;
}

.date-form-grid > .date-form-results {
    grid-area: results;
}

.date-form-grid .tool-form-group {
    height: 100%;
}

.unit-form-grid .tool-form-group,
.loan-form-grid .tool-form-group {
    height: 100%;
}

.tool-form-group > .form-label,
.tool-form-group > span.form-label {
    margin-bottom: 0.85rem;
}

.tool-form-group .form-text {
    margin-top: 0.75rem;
    line-height: 1.7;
}

.date-converter-card > .card-body > .row > .col-12:last-child {
    padding-top: 0.25rem;
}

.date-fields {
    width: min(100%, 22rem);
    gap: 0.5rem;
}

.age-form-field .date-fields {
    width: 100%;
}

.date-converter-card > .card-body > .row > .col-12 > .date-fields {
    width: min(100%, 22rem);
}

.date-converter-card .form-select,
.age-calculator-card .form-select,
.unit-converter-card .form-select,
.unit-converter-card .form-control,
.loan-calculator-card .form-select,
.loan-calculator-card .form-control,
.date-field .form-select,
.date-field .form-control {
    min-height: 2.85rem;
    border-color: var(--abzkit-border);
    border-radius: 0.75rem;
    background-color: #fff;
    transition: border-color 160ms ease, box-shadow 160ms ease, background-color 160ms ease;
}

.date-converter-card .form-select:focus,
.age-calculator-card .form-select:focus,
.unit-converter-card .form-select:focus,
.unit-converter-card .form-control:focus,
.loan-calculator-card .form-select:focus,
.loan-calculator-card .form-control:focus,
.date-field .form-select:focus,
.date-field .form-control:focus {
    border-color: var(--abzkit-primary);
    background-color: #fff;
    box-shadow: 0 0 0 0.22rem rgb(79 70 229 / 16%);
}

.date-converter-card .form-select:disabled,
.age-calculator-card .form-select:disabled,
.unit-converter-card .form-select:disabled,
.unit-converter-card .form-control:disabled,
.loan-calculator-card .form-select:disabled,
.loan-calculator-card .form-control:disabled,
.date-field .form-select:disabled,
.date-field .form-control:disabled {
    border-color: var(--abzkit-border);
    background-color: #f0f2f6;
    color: #7c8798;
    cursor: not-allowed;
}

.date-result-panel,
.age-result-panel,
.unit-result-panel,
.loan-result-panel {
    border: 1px solid var(--abzkit-border-strong);
    border-radius: 1rem;
    background: linear-gradient(140deg, #f8faff 0%, var(--abzkit-result-surface) 100%);
    box-shadow: inset 0 1px 0 rgb(255 255 255 / 90%), 0 0.5rem 1.25rem rgb(79 70 229 / 5%);
}

.date-result-panel[data-has-result="false"],
.age-result-panel[data-has-result="false"],
.unit-result-panel[data-has-result="false"],
.loan-result-panel[data-has-result="false"] {
    background: var(--abzkit-surface);
}

.date-results-stack {
    display: grid;
    min-width: 0;
    gap: 0.75rem;
}

.date-result-panel > .small,
.age-result-panel > h2,
.unit-result-panel > .small,
.loan-result-panel > h2 {
    color: var(--abzkit-muted) !important;
    font-weight: 600;
}

.date-result-value {
    font-size: clamp(2rem, 6vw, 3rem);
    letter-spacing: -0.025em;
}

.date-weekday {
    padding: 0.85rem 1rem;
    border: 1px solid var(--abzkit-border);
    border-radius: 0.8rem;
    background: #fff;
    font-size: 0.95rem;
}

.date-difference {
    padding: 0.85rem 1rem;
    border: 1px solid var(--abzkit-border);
    border-radius: 0.8rem;
    background: #fff;
    font-size: 0.9rem;
}

.age-primary-result {
    margin-bottom: 1.25rem !important;
    padding: 1.1rem 1.25rem;
    border: 1px solid var(--abzkit-border-strong);
    border-inline-start: 4px solid var(--abzkit-primary);
    border-radius: 0.9rem;
    background: #fff;
    box-shadow: 0 0.4rem 1rem rgb(23 32 51 / 4%);
    font-size: clamp(1.55rem, 4.5vw, 2.25rem);
}

.age-detail-card {
    min-height: 6.25rem;
    padding: 1rem;
    border-color: var(--abzkit-border);
    border-radius: 0.9rem;
    background: #fff;
}

.age-detail-card span {
    font-size: 0.85rem;
    line-height: 1.6;
}

.age-detail-card strong {
    color: var(--abzkit-ink);
    font-size: 1.05rem;
    line-height: 1.6;
}

.loan-primary-metric {
    border-color: var(--abzkit-border-strong);
    background: var(--abzkit-result-surface);
}

.loan-primary-metric strong {
    color: var(--abzkit-primary);
    font-size: clamp(1.1rem, 2vw, 1.35rem);
}

.unit-error:not([hidden]),
.date-error:not([hidden]),
.age-error:not([hidden]),
.loan-error:not([hidden]) {
    padding: 0.65rem 0.8rem;
    border: 1px solid #f2c7c3;
    border-inline-start: 3px solid #b42318;
    border-radius: 0.7rem;
    background: #fff5f4;
}

.unit-copy-status:not([hidden]) {
    padding: 0.65rem 0.8rem;
    border: 1px solid #cce7d5;
    border-radius: 0.7rem;
    background: #f0faf3;
    color: var(--abzkit-success);
}

.date-converter-card .btn,
.age-calculator-card .btn,
.unit-converter-card .btn,
.loan-calculator-card .btn {
    min-height: 2.9rem;
    border-radius: 0.75rem;
    transition: background-color 160ms ease, border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.date-converter-card .btn:hover:not(:disabled),
.age-calculator-card .btn:hover:not(:disabled),
.unit-converter-card .btn:hover:not(:disabled),
.loan-calculator-card .btn:hover:not(:disabled) {
    transform: translateY(-1px);
}

.date-converter-card .btn:focus-visible,
.age-calculator-card .btn:focus-visible,
.unit-converter-card .btn:focus-visible,
.loan-calculator-card .btn:focus-visible {
    box-shadow: 0 0 0 0.22rem rgb(79 70 229 / 18%);
}

.date-converter-card .btn:disabled,
.age-calculator-card .btn:disabled,
.unit-converter-card .btn:disabled,
.loan-calculator-card .btn:disabled {
    opacity: 0.55;
    cursor: not-allowed;
    transform: none;
}

.unit-converter-card .btn,
.date-converter-card .btn,
.age-calculator-card .btn,
.loan-calculator-card .btn {
    min-height: 2.8rem;
}

@media (min-width: 992px) {
    .hero-section.py-lg-6 {
        padding-block: 3.75rem !important;
    }
}

@media (max-width: 575.98px) {
    .hero-section {
        padding-block: 1.5rem;
    }

    .hero-panel {
        padding: 1.25rem !important;
    }

    .hero-copy {
        font-size: 1rem;
    }

    .tool-card .card-body {
        padding: 1.25rem;
    }

    .age-form-hint {
        min-height: 0;
    }

    .tool-form-group {
        padding: 0.85rem;
        border-radius: 0.8rem;
    }

    .date-converter-card .card-body,
    .age-calculator-card .card-body,
    .unit-converter-card .card-body,
    .loan-calculator-card .card-body {
        padding: 1rem !important;
    }

    .date-converter-card .btn,
    .age-calculator-card .btn,
    .unit-converter-card .btn,
    .loan-calculator-card .btn {
        width: 100%;
    }

    .date-result-panel,
    .age-result-panel {
        padding: 1rem !important;
    }

    .age-primary-result {
        padding: 0.9rem 1rem;
    }

    .date-field {
        gap: 0.3rem;
    }

    .date-field-label {
        font-size: 0.75rem;
    }

    .date-field .form-select,
    .date-field .form-control {
        height: 2.6rem;
        font-size: 0.875rem;
    }

    .date-field .form-select {
        padding-inline-end: 1.4rem;
        background-position: left 0.45rem center;
        background-size: 0.75rem 0.55rem;
    }
}

/* Theme surfaces and market price component */
.theme-toggle {
    display: inline-flex;
    min-height: 2.75rem;
    align-items: center;
    gap: 0.35rem;
    padding: 0.45rem 0.7rem;
    border: 1px solid var(--abzkit-border);
    border-radius: 999px;
    background: var(--abzkit-card);
    color: var(--abzkit-muted);
    cursor: pointer;
}
.theme-toggle:hover { border-color: var(--abzkit-primary); color: var(--abzkit-primary); }
.theme-toggle-icon { font-size: 1.1rem; line-height: 1; }
.theme-toggle-sun { display: none; }
html[data-theme="light"] .theme-toggle-moon { display: none; }
html[data-theme="light"] .theme-toggle-sun { display: inline; }
.gold-market-status {
    display: flex;
    min-width: 0;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.25rem 0.55rem;
    padding: 0.55rem 0.7rem;
    border: 1px solid rgb(8 145 178 / 28%);
    border-inline-start: 3px solid var(--abzkit-secondary);
    border-radius: 0.8rem;
    background: linear-gradient(135deg, rgb(8 145 178 / 12%), var(--abzkit-result-surface));
    color: var(--abzkit-muted);
    font-size: 0.78rem;
}
.gold-market-heading { display: inline-flex; flex-basis: 100%; align-items: center; gap: 0.35rem; color: var(--abzkit-ink); font-size: 0.76rem; font-weight: 700; }
.gold-market-source { padding: 0.08rem 0.32rem; border: 1px solid rgb(8 145 178 / 35%); border-radius: 999px; color: var(--abzkit-secondary); font-size: 0.58rem; letter-spacing: 0.04em; }
.gold-market-value { display: inline-flex; min-width: 0; align-items: baseline; gap: 0.3rem; color: var(--abzkit-ink); }
.gold-market-status strong { color: var(--abzkit-ink); font-size: clamp(1.18rem, 3.5vw, 1.45rem); font-weight: 700; line-height: 1.2; overflow-wrap: anywhere; }
.gold-market-unit { color: var(--abzkit-muted); font-size: 0.76rem; white-space: nowrap; }
.gold-market-state { flex-basis: 100%; color: var(--abzkit-muted); font-size: 0.68rem; }
.gold-market-unavailable { flex-basis: 100%; color: var(--abzkit-muted); font-size: 0.75rem; }
#gold-use-market { min-height: 2.5rem; margin-top: 0; margin-bottom: 0.75rem !important; }
.market-overview { padding-bottom: 1.25rem; }
.market-overview-header { display: flex; align-items: end; justify-content: space-between; gap: 1rem; margin-bottom: 0.7rem; }
.market-overview-header h2 { color: var(--abzkit-ink); font-weight: 700; }
.market-overview-source { border: 1px solid rgb(8 145 178 / 35%); border-radius: 999px; color: var(--abzkit-secondary); font-size: 0.68rem; font-weight: 700; letter-spacing: 0.04em; padding: 0.18rem 0.45rem; }
.market-overview-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.65rem; }
.market-price-card { min-width: 0; padding: 0.75rem 0.8rem; border: 1px solid var(--abzkit-border); border-radius: 0.85rem; background: var(--abzkit-card); box-shadow: 0 5px 16px var(--abzkit-shadow); }
.market-price-card-top { display: flex; min-width: 0; align-items: center; gap: 0.35rem; }
.market-price-card-icon { color: var(--abzkit-secondary); font-size: 0.78rem; }
.market-price-card h3 { overflow: hidden; margin: 0; color: var(--abzkit-muted); font-size: 0.78rem; font-weight: 700; text-overflow: ellipsis; white-space: nowrap; }
.market-price-card-value { margin-top: 0.38rem; color: var(--abzkit-ink); font-size: clamp(0.98rem, 2.3vw, 1.2rem); font-weight: 700; line-height: 1.25; overflow-wrap: anywhere; }
.market-price-card-meta { display: flex; align-items: center; justify-content: space-between; gap: 0.4rem; margin-top: 0.25rem; color: var(--abzkit-muted); font-size: 0.68rem; }
.market-price-change { white-space: nowrap; }
.market-price-change-up { color: var(--abzkit-success); }
.market-price-change-down { color: var(--abzkit-danger); }
.market-price-change-flat { color: var(--abzkit-muted); }
@media (min-width: 576px) { .market-overview-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (min-width: 992px) { .market-overview-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); } }

html[data-theme="dark"] .site-header { background: rgb(11 17 32 / 92%); }
html[data-theme="dark"] .site-footer,
html[data-theme="dark"] .unit-converter-card,
html[data-theme="dark"] .unit-info-card,
html[data-theme="dark"] .date-converter-card,
html[data-theme="dark"] .date-info-card,
html[data-theme="dark"] .age-calculator-card,
html[data-theme="dark"] .loan-calculator-card,
html[data-theme="dark"] .unit-example-card,
html[data-theme="dark"] .date-example-card,
html[data-theme="dark"] .tool-form-group,
html[data-theme="dark"] .age-detail-card,
html[data-theme="dark"] .loan-metric-card,
html[data-theme="dark"] .gold-final-wrap,
html[data-theme="dark"] .gold-breakdown-row,
html[data-theme="dark"] .ip-lookup-primary,
html[data-theme="dark"] .tool-filters,
html[data-theme="dark"] .category-card,
html[data-theme="dark"] .hero-search { background: var(--abzkit-card) !important; color: var(--abzkit-ink); }
html[data-theme="dark"] .form-control,
html[data-theme="dark"] .form-select,
html[data-theme="dark"] .form-control:focus,
html[data-theme="dark"] .form-select:focus { background-color: var(--abzkit-surface-secondary); color: var(--abzkit-ink); border-color: var(--abzkit-border-strong); }
html[data-theme="dark"] .form-control::placeholder { color: #64748b; }
html[data-theme="dark"] .unit-converter-panel,
html[data-theme="dark"] .hero-panel { background: radial-gradient(circle at 85% 20%, rgb(8 145 178 / 14%), transparent 38%), linear-gradient(135deg, #172554 0%, #111827 72%); border-color: var(--abzkit-border); }
html[data-theme="dark"] .hero-section,
html[data-theme="dark"] .about-section,
html[data-theme="dark"] .unit-converter-hero { background: var(--abzkit-surface); }
html[data-theme="dark"] .category-card-icon { background: #312e81; }
html[data-theme="dark"] .deposit-details-table thead th { background: #1e293b; color: var(--abzkit-ink); }
html[data-theme="dark"] .deposit-details-table tbody tr:hover td { background: #1f2937; }
html[data-theme="dark"] .alert-info { background: #164e63; border-color: #155e75; color: #cffafe; }
html[data-theme="dark"] .alert-warning { background: #451a03; border-color: #92400e; color: #fed7aa; }
html[data-theme="dark"] .alert-success { background: #064e3b; border-color: #047857; color: #a7f3d0; }

@media (max-width: 991.98px) {
    .theme-toggle { width: 100%; justify-content: center; }
}

@media (max-width: 991.98px) {
    .date-form-grid {
        grid-template-columns: minmax(0, 1fr);
        grid-template-areas:
            "source-calendar"
            "target-calendar"
            "source-date"
            "second-date"
            "actions"
            "results";
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
    }
}

/* Shared shell and home page refresh */
.site-header {
    position: sticky;
    z-index: 20;
    top: 0;
    border-bottom: 1px solid var(--abzkit-border);
    background: rgb(255 255 255 / 92%);
    backdrop-filter: blur(14px);
}

.site-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    color: var(--abzkit-ink);
    font-size: 1.15rem;
}

.site-brand:hover { color: var(--abzkit-primary); }

.site-brand-logo { display: block; width: 10.75rem; line-height: 0; }
.site-brand-logo img { display: block; width: 100%; height: auto; }
.site-brand-logo-light { display: none !important; }
html[data-theme="dark"] .site-brand-logo-dark { display: none !important; }
html[data-theme="dark"] .site-brand-logo-light { display: block !important; }

.site-brand-mark {
    display: grid;
    width: 2.1rem;
    height: 2.1rem;
    place-items: center;
    border-radius: 0.7rem;
    background: linear-gradient(135deg, var(--abzkit-primary), var(--abzkit-secondary));
    color: #fff;
    font-size: 1rem;
}

.site-navigation {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    margin-inline-start: auto;
}

.site-navigation .nav-link {
    min-height: 2.75rem;
    padding: 0.55rem 0.9rem;
    border-radius: 0.7rem;
    color: var(--abzkit-muted);
    font-weight: 600;
}

.site-navigation .nav-link:hover,
.site-navigation .nav-link:focus-visible { background: #eef2ff; color: var(--abzkit-primary); }

.site-menu-toggle { border-color: var(--abzkit-border); }

.site-footer {
    margin-top: auto;
    padding-block: 1.25rem;
    border-top: 1px solid var(--abzkit-border);
    background: #fff;
}

.site-footer-brand { display: block; color: var(--abzkit-ink); font-weight: 700; line-height: 0; }
.site-footer-brand img { display: block; width: 8rem; height: auto; }
.site-footer-logo-light { display: none !important; }
html[data-theme="dark"] .site-footer-logo-dark { display: none !important; }
html[data-theme="dark"] .site-footer-logo-light { display: block !important; }

.hero-section { padding-block: clamp(2rem, 6vw, 4.5rem); background: var(--abzkit-surface); }

.hero-panel {
    position: relative;
    isolation: isolate;
    overflow: hidden;
    display: flex;
    align-items: center;
    min-height: 23rem;
    padding: clamp(1.5rem, 5vw, 4rem);
    border: 1px solid #dbe4ff;
    border-radius: 1.5rem;
    background: radial-gradient(circle at 85% 20%, rgb(8 145 178 / 15%), transparent 34%), linear-gradient(135deg, #eef2ff 0%, #fff 72%);
    box-shadow: 0 1.25rem 3rem rgb(79 70 229 / 10%);
}

.hero-content { position: relative; z-index: 1; max-width: 42rem; }
.hero-panel h1 { max-width: 15ch; color: var(--abzkit-ink); letter-spacing: -0.03em; }
.hero-copy { max-width: 52ch; color: var(--abzkit-muted); }

.hero-search {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    max-width: 39rem;
    padding: 0.4rem;
    border: 1px solid var(--abzkit-border);
    border-radius: 0.95rem;
    background: #fff;
    box-shadow: 0 0.75rem 1.5rem rgb(23 32 51 / 8%);
}

.hero-search .form-control { flex: 1 1 auto; min-width: 0; min-height: 2.8rem; border: 0; box-shadow: none; }
.hero-search .btn { min-height: 2.8rem; white-space: nowrap; }
.hero-search-icon { padding-inline: 0.55rem; color: var(--abzkit-secondary); font-size: 1.5rem; }
.hero-orbit { position: absolute; inset: 0 0 0 auto; width: 34%; opacity: 0.9; }
.hero-orbit-icon { position: absolute; display: grid; width: 3.7rem; height: 3.7rem; place-items: center; border: 1px solid rgb(79 70 229 / 14%); border-radius: 1.1rem; background: rgb(255 255 255 / 72%); color: var(--abzkit-primary); font-size: 1.65rem; box-shadow: 0 0.75rem 1.5rem rgb(79 70 229 / 10%); }
.hero-orbit-icon:nth-child(1) { inset: 20% 30% auto auto; }
.hero-orbit-icon:nth-child(2) { inset: auto 12% 22% auto; color: var(--abzkit-secondary); }
.hero-orbit-icon:nth-child(3) { inset: auto 52% 8% auto; }

.category-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0.85rem; }
.category-card { display: flex; align-items: center; gap: 0.75rem; min-height: 5.2rem; padding: 0.9rem; border: 1px solid var(--abzkit-border); border-radius: 1rem; background: #fff; color: var(--abzkit-ink); text-decoration: none; box-shadow: 0 0.35rem 1rem rgb(23 32 51 / 3%); transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease; }
.category-card:hover { border-color: #c7d2fe; box-shadow: 0 0.7rem 1.4rem rgb(79 70 229 / 10%); color: var(--abzkit-primary); transform: translateY(-2px); }
.category-card-icon { display: grid; flex: 0 0 2.35rem; width: 2.35rem; height: 2.35rem; place-items: center; border-radius: 0.7rem; background: #eef2ff; color: var(--abzkit-primary); font-size: 1.2rem; }
.category-card strong, .category-card small { display: block; }
.category-card strong { font-size: 0.92rem; }
.category-card small { margin-top: 0.15rem; color: var(--abzkit-muted); font-size: 0.75rem; }
.category-card-arrow { margin-inline-start: auto; color: var(--abzkit-secondary); }
.tool-filters { border-color: var(--abzkit-border) !important; background: #fff; box-shadow: 0 0.7rem 1.5rem rgb(23 32 51 / 5%); }
.tool-card-category { color: var(--abzkit-primary); }
.tool-card .btn { min-height: 2.75rem; }
.tool-status { border: 1px solid transparent; font-weight: 700; }
.tool-status-available { border-color: #a7f3d0; background: #ecfdf5; color: #047857; }
.tool-status-planned { border-color: #fed7aa; background: #fff7ed; color: #c2410c; }

/* Shared tool controls */
.date-converter-card .btn-primary,
.age-calculator-card .btn-primary,
.unit-converter-card .btn-primary,
.loan-calculator-card .btn-primary,
.tool-form-card .btn-primary {
    border-color: var(--abzkit-primary);
    background: var(--abzkit-primary);
}

.date-converter-card .btn-primary:hover,
.age-calculator-card .btn-primary:hover,
.unit-converter-card .btn-primary:hover,
.loan-calculator-card .btn-primary:hover,
.tool-form-card .btn-primary:hover {
    border-color: #4338ca;
    background: #4338ca;
}

.date-converter-card .btn-outline-primary,
.age-calculator-card .btn-outline-primary,
.unit-converter-card .btn-outline-primary,
.loan-calculator-card .btn-outline-primary {
    border-color: var(--abzkit-primary);
    color: var(--abzkit-primary);
}

.date-converter-card .btn-outline-primary:hover,
.age-calculator-card .btn-outline-primary:hover,
.unit-converter-card .btn-outline-primary:hover,
.loan-calculator-card .btn-outline-primary:hover {
    border-color: var(--abzkit-primary);
    background: var(--abzkit-primary);
    color: #fff;
}

.alert-info {
    border-color: #a5f3fc;
    background: #ecfeff;
    color: #155e75;
}

.alert-warning {
    border-color: #fed7aa;
    background: #fff7ed;
    color: #9a3412;
}

.alert-success {
    border-color: #a7f3d0;
    background: #ecfdf5;
    color: #065f46;
}

.ip-lookup-result-panel {
    overflow-wrap: anywhere;
}

.ip-lookup-primary {
    padding: 1rem 1.1rem;
    border: 1px solid var(--abzkit-border-strong);
    border-inline-start: 4px solid var(--abzkit-secondary);
    border-radius: 0.9rem;
    background: #fff;
}

.ip-lookup-ip {
    display: block;
    max-width: 100%;
    color: var(--abzkit-primary);
    font-size: clamp(1.35rem, 4vw, 2rem);
    font-weight: 700;
    line-height: 1.5;
    overflow-wrap: anywhere;
}

.ip-lookup-source {
    padding: 0.25rem 0.6rem;
    border: 1px solid #a5f3fc;
    border-radius: 999px;
    background: #ecfeff;
    color: #155e75;
    font-size: 0.8rem;
    font-weight: 700;
}

.ip-lookup-error:not([hidden]) {
    padding: 0.65rem 0.8rem;
    border: 1px solid #fecaca;
    border-inline-start: 3px solid var(--abzkit-danger);
    border-radius: 0.7rem;
    background: #fef2f2;
    color: var(--abzkit-danger);
    font-weight: 600;
}

.ip-lookup-status:not([hidden]) {
    padding: 0.65rem 0.8rem;
    border: 1px solid #a7f3d0;
    border-radius: 0.7rem;
    background: #ecfdf5;
    color: var(--abzkit-success);
}

@media (max-width: 575.98px) {
    .ip-lookup-card .btn,
    #ip-lookup-form .btn {
        width: 100%;
    }
}

@media (max-width: 991.98px) {
    .site-menu-toggle { display: block; margin-inline-start: auto; }
    .site-navigation { display: none; width: 100%; padding-top: 0.75rem; }
    .site-navigation.is-open { display: grid; gap: 0.25rem; }
    .site-navigation .nav-link { padding-block: 0.7rem; }
    .navbar { flex-wrap: wrap; }
    .hero-orbit { width: 28%; opacity: 0.55; }
}

@media (max-width: 575.98px) {
    .hero-panel { min-height: 0; padding: 1.35rem; border-radius: 1.15rem; }
    .hero-panel h1 { font-size: clamp(1.9rem, 9vw, 2.5rem); }
    .hero-search { align-items: stretch; flex-wrap: wrap; }
    .hero-search .form-control { flex: 1 1 100%; }
    .hero-search .btn { width: 100%; }
    .hero-search-icon { display: none; }
    .hero-orbit { display: none; }
    .category-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.65rem; }
    .category-card { min-height: 4.7rem; padding: 0.7rem; }
    .category-card strong { font-size: 0.82rem; }
}

/* Contrast-safe shared controls for both Bootstrap and local tool components. */
html[data-theme="dark"] .form-label,
html[data-theme="dark"] .form-text,
html[data-theme="dark"] .text-secondary,
html[data-theme="dark"] .text-muted,
html[data-theme="dark"] .loan-note,
html[data-theme="dark"] .unit-formula,
html[data-theme="dark"] .date-weekday,
html[data-theme="dark"] .date-difference,
html[data-theme="dark"] .tool-unavailable { color: var(--color-text-muted) !important; }
html[data-theme="dark"] #silver-result-panel {
    border-color: var(--color-border);
    background: linear-gradient(140deg, var(--color-background) 0%, var(--color-surface-secondary) 100%);
    box-shadow: inset 0 1px 0 rgb(148 163 184 / 8%), 0 0.5rem 1.25rem rgb(2 6 23 / 28%);
    color: var(--color-text);
}
html[data-theme="dark"] #silver-result-panel h2,
html[data-theme="dark"] #silver-result-panel #silver-empty,
html[data-theme="dark"] #silver-result-panel .loan-note { color: var(--color-text-muted) !important; }
html[data-theme="dark"] #silver-result-panel #silver-result-value { color: #a5b4fc; }
html[data-theme="dark"] .form-control,
html[data-theme="dark"] .form-select,
html[data-theme="dark"] textarea { background-color: var(--color-input-background); color: var(--color-input-text); }
html[data-theme="dark"] .form-control::placeholder,
html[data-theme="dark"] textarea::placeholder { color: var(--color-placeholder); opacity: 1; }
html[data-theme="dark"] .form-control:disabled,
html[data-theme="dark"] .form-select:disabled,
html[data-theme="dark"] textarea:disabled { background-color: #172033; color: #cbd5e1; border-color: var(--color-border); opacity: 1; }
html[data-theme="dark"] a { color: #a5b4fc; }
html[data-theme="dark"] a:hover { color: #c4b5fd; }
html[data-theme="dark"] .site-navigation .nav-link { color: var(--color-text-muted); }
html[data-theme="dark"] .site-navigation .nav-link:hover,
html[data-theme="dark"] .site-navigation .nav-link:focus-visible { background: #312e81; color: #eef2ff; }
html[data-theme="dark"] .btn-outline-secondary { border-color: #94a3b8; color: #e2e8f0; }
html[data-theme="dark"] .btn-outline-secondary:hover,
html[data-theme="dark"] .btn-outline-secondary:focus-visible { background: #334155; color: #fff; }
html[data-theme="dark"] .btn:disabled { color: #94a3b8; opacity: 0.75; }
html[data-theme="dark"] .unit-error,
html[data-theme="dark"] .date-error,
html[data-theme="dark"] .age-error,
html[data-theme="dark"] .loan-error { color: #fca5a5; background: rgb(248 113 113 / 10%); border-color: rgb(248 113 113 / 35%); }
html[data-theme="dark"] .gold-market-status { color: var(--color-text-muted); }
html[data-theme="dark"] .gold-market-status strong,
html[data-theme="dark"] .gold-market-heading { color: var(--color-text); }

/* Hesabia visual system */
:root {
    --hesabia-primary: var(--abzkit-primary);
    --hesabia-secondary: var(--abzkit-secondary);
    --hesabia-surface: var(--abzkit-surface);
    --hesabia-card: var(--abzkit-card);
    --hesabia-border: var(--abzkit-border);
    --hesabia-text: var(--abzkit-ink);
    --hesabia-muted: var(--abzkit-muted);
    --hesabia-radius: 1rem;
}

.site-brand > span:last-child { display: inline-flex; flex-direction: column; gap: .05rem; line-height: 1.1; }
.site-brand-tagline { color: var(--abzkit-muted); font-size: .58rem; font-weight: 600; letter-spacing: .04em; }
.brand-kicker { color: var(--abzkit-primary); font-weight: 800; letter-spacing: .04em; }
.hero-tagline { margin: 0 0 .65rem; color: var(--abzkit-secondary); font-size: .82rem; font-weight: 800; letter-spacing: .08em; }
.site-header { background: var(--abzkit-card); }
.site-footer, .about-section .benefit-card, .empty-state, .category-card, .tool-filters, .hero-search, .ip-lookup-primary { background: var(--abzkit-card) !important; color: var(--abzkit-ink); }
.site-footer { box-shadow: 0 -0.5rem 1.5rem var(--abzkit-shadow); }
.about-section .benefit-card { border-color: var(--abzkit-border) !important; box-shadow: 0 .45rem 1.1rem var(--abzkit-shadow); }
.about-section .benefit-card h3, .about-section .benefit-card p { color: var(--abzkit-ink); }
.about-section .benefit-card p { color: var(--abzkit-muted); }
.hero-panel { border-color: var(--abzkit-border-strong); background: radial-gradient(circle at 85% 20%, rgb(8 145 178 / 15%), transparent 34%), linear-gradient(135deg, var(--abzkit-result-surface), var(--abzkit-card)); }
.category-card:hover { background: var(--abzkit-surface-secondary) !important; }
.form-control::placeholder, .form-select::placeholder { color: var(--abzkit-muted); opacity: 1; }
.tool-card, .tool-form-card, .unit-converter-card, .loan-calculator-card, .date-converter-card, .age-calculator-card { border-radius: var(--hesabia-radius); }
@media (max-width: 575.98px) { .hero-panel { min-height: 20rem; padding: 1.25rem; } .hero-panel h1 { font-size: clamp(1.8rem, 9vw, 2.5rem); } .hero-search { flex-wrap: wrap; } .hero-search .form-control { flex-basis: 100%; } .hero-search .btn { flex: 1 1 100%; } }

/* Hesabia surface and contrast refinements */
body, .tool-card, .benefit-card, .category-card, .tool-filters, .site-footer {
    transition: background-color 180ms ease, border-color 180ms ease, color 180ms ease, box-shadow 180ms ease;
}
.tool-card, .benefit-card, .category-card, .tool-filters, .empty-state, .about-section .benefit-card {
    border-color: var(--abzkit-border) !important;
    background: var(--abzkit-card) !important;
    color: var(--abzkit-ink);
}
.tool-card { box-shadow: 0 .45rem 1.25rem var(--abzkit-shadow); }
.tool-card:hover, .benefit-card:hover { border-color: var(--abzkit-border-strong) !important; box-shadow: 0 .8rem 1.7rem var(--abzkit-shadow); transform: translateY(-2px); }
.tool-card, .benefit-card { transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease; }
.tool-card h3, .benefit-card h3, .tool-card p, .benefit-card p { color: var(--abzkit-ink); }
.tool-card .text-secondary, .benefit-card .text-secondary { color: var(--abzkit-muted) !important; }
.site-footer a { color: var(--abzkit-muted); text-decoration: none; }
.site-footer a:hover, .site-footer a:focus-visible { color: var(--abzkit-primary); }
html[data-theme="dark"] .tool-status-available { border-color: #047857; background: #064e3b; color: #a7f3d0; }
html[data-theme="dark"] .tool-status-planned { border-color: #92400e; background: #451a03; color: #fed7aa; }
html[data-theme="dark"] .category-card small,
html[data-theme="dark"] .tool-results,
html[data-theme="dark"] .section-heading .text-secondary { color: var(--abzkit-muted) !important; }

/* Homepage hero */
.hero-section { padding-block: clamp(1.25rem, 3vw, 2.25rem); }
.hero-panel {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(13rem, .72fr);
    align-items: center;
    min-height: 22.5rem;
    max-width: 76rem;
    margin-inline: auto;
    padding: clamp(1.5rem, 4vw, 3rem);
    border-radius: 1.35rem;
}
.hero-content { max-width: 39rem; }
.hero-brand-line {
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    gap: .35rem;
    margin: 0 0 .8rem;
    color: var(--abzkit-secondary);
    font-size: .95rem;
    font-weight: 700;
}
.hero-brand-name { color: var(--abzkit-primary); font-size: 1.05rem; font-weight: 800; }
.hero-panel h1 { max-width: 17ch; margin-bottom: .85rem !important; font-size: clamp(2rem, 4vw, 3.25rem); line-height: 1.25; }
.hero-copy { max-width: 43rem; margin-bottom: 1.35rem !important; font-size: clamp(1rem, 1.4vw, 1.12rem); line-height: 1.95; }
.hero-search { max-width: 37rem; }
.hero-visual { position: relative; min-height: 17rem; }
.hero-visual-ring { position: absolute; display: block; border: 1px solid rgb(99 102 241 / 22%); border-radius: 50%; transform: rotate(-20deg); }
.hero-visual-ring-large { inset: 8% 4% 8% 6%; border-inline-color: rgb(8 145 178 / 38%); }
.hero-visual-ring-small { inset: 22% 18% 22% 20%; border-color: rgb(124 58 237 / 34%); }
.hero-visual .hero-orbit-icon { width: 3.35rem; height: 3.35rem; border-color: rgb(99 102 241 / 22%); background: var(--abzkit-card); box-shadow: 0 .75rem 1.5rem var(--abzkit-shadow); }
.hero-visual .hero-orbit-icon:nth-of-type(3) { inset: 12% 24% auto auto; }
.hero-visual .hero-orbit-icon:nth-of-type(4) { inset: auto 6% 19% auto; color: var(--abzkit-secondary); }
.hero-visual .hero-orbit-icon:nth-of-type(5) { inset: auto 47% 5% auto; }
html[data-theme="dark"] .hero-visual-ring { border-color: rgb(129 140 248 / 28%); }
html[data-theme="dark"] .hero-visual .hero-orbit-icon { background: #172033; border-color: rgb(129 140 248 / 34%); color: #c4b5fd; }
html[data-theme="dark"] .hero-visual .hero-orbit-icon:nth-of-type(4) { color: #67e8f9; }

@media (max-width: 767.98px) {
    .hero-panel { grid-template-columns: 1fr; min-height: 0; padding: 1.35rem; }
    .hero-content { max-width: none; }
    .hero-panel h1 { max-width: none; font-size: clamp(1.85rem, 8vw, 2.45rem); }
    .hero-copy { line-height: 1.8; }
    .hero-visual { display: none; }
}

/* subnet calculator */
.subnet-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    margin-bottom: 1.25rem;
}
.subnet-tab {
    border: 1px solid var(--color-border);
    background: var(--color-surface-secondary);
    color: var(--color-text);
    border-radius: 2rem;
    padding: .5rem 1.25rem;
    font-weight: 600;
    font-size: .95rem;
    transition: background-color .15s ease, border-color .15s ease;
}
.subnet-tab:hover { border-color: var(--color-border-strong); }
.subnet-tab.is-active {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: #fff;
}
.subnet-tab:focus-visible { outline: 2px solid var(--abzkit-focus); outline-offset: 2px; }
.subnet-table-wrap {
    overflow-x: auto;
    border: 1px solid var(--color-border);
    border-radius: .75rem;
}
.subnet-table {
    width: 100%;
    border-collapse: collapse;
    font-size: .9rem;
    margin: 0;
}
.subnet-table th,
.subnet-table td {
    padding: .6rem .85rem;
    border-bottom: 1px solid var(--color-border);
    white-space: nowrap;
    text-align: right;
    color: var(--color-text);
}
.subnet-table tbody tr:last-child td { border-bottom: 0; }
.subnet-table thead th {
    background: var(--color-surface-secondary);
    color: var(--color-text);
    font-weight: 700;
    border-bottom: 2px solid var(--color-border-strong);
}
.subnet-table tbody tr:nth-child(even) { background: rgb(148 163 184 / 8%); }
.subnet-table tbody tr:hover { background: rgb(99 102 241 / 10%); }
html[data-theme="dark"] .loan-result-panel:not([data-has-result]) {
    border-style: solid;
    background: var(--abzkit-result-surface);
    box-shadow: none;
}
html[data-theme="dark"] .subnet-table tbody tr:nth-child(even) { background: rgb(148 163 184 / 12%); }
html[data-theme="dark"] .subnet-table tbody tr:hover { background: rgb(99 102 241 / 18%); }
.subnet-binary { display: grid; gap: .5rem; }
.subnet-copy-item .subnet-binary-label {
    display: block;
    font-size: .85rem;
    color: var(--color-text-muted);
    margin-bottom: .15rem;
}
.subnet-binary-value {
    display: inline-block;
    background: var(--color-input-background);
    border: 1px solid var(--color-border);
    border-radius: .5rem;
    padding: .35rem .6rem;
    font-size: .85rem;
    letter-spacing: .05em;
}
.subnet-vlsm-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: .75rem;
    align-items: end;
    padding: .75rem;
    border: 1px solid var(--color-border);
    border-radius: .75rem;
    margin-bottom: .75rem;
}
.subnet-vlsm-row .tool-form-group { margin-bottom: 0; }
@media (min-width: 768px) {
    .subnet-vlsm-row { grid-template-columns: 2fr 1fr auto; }
}

/* dns toolkit */
.dns-badge {
    display: inline-block;
    border-radius: 1rem;
    padding: .15rem .75rem;
    font-size: .8rem;
    font-weight: 600;
    border: 1px solid var(--color-border);
}
.dns-badge-success { background: rgb(5 150 105 / 15%); color: var(--abzkit-success); border-color: var(--abzkit-success); }
.dns-badge-error { background: rgb(248 113 113 / 15%); color: var(--abzkit-danger); border-color: var(--abzkit-danger); }
html[data-theme="dark"] .dns-badge-success { color: #6ee7b7; }
html[data-theme="dark"] .dns-badge-error { color: #fca5a5; }
.dns-badge-muted { background: var(--color-surface-secondary); color: var(--color-text-muted); }
.dns-loading { position: relative; padding-right: 1.75rem; }
.dns-loading::after {
    content: "";
    position: absolute;
    right: 0;
    top: 50%;
    width: 1rem;
    height: 1rem;
    margin-top: -0.5rem;
    border: 2px solid var(--color-border-strong);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: dns-spin .8s linear infinite;
}
@keyframes dns-spin { to { transform: rotate(360deg); } }
.dns-txt-record {
    display: block;
    direction: ltr;
    text-align: left;
    background: var(--color-input-background);
    border: 1px solid var(--color-border);
    border-radius: .5rem;
    padding: .5rem .75rem;
    font-size: .85rem;
    margin-bottom: .5rem;
    overflow-wrap: anywhere;
}