/* Base styles */
:root {
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-background: #ffffff;
    --color-text: #1f2937;
    --color-muted: #6b7280;
    --color-border: #e5e7eb;
    --max-width: 1100px;
    --radius: 16px;
    --shadow: 0 20px 45px -25px rgba(37, 99, 235, 0.4);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    color: var(--color-text);
    background-color: var(--color-background);
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
}

img {
    max-width: 100%;
    display: block;
}

.container {
    width: min(90%, var(--max-width));
    margin: 0 auto;
}

/* Header */
.site-header {
    background: #f1f5f9;
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
    gap: 1.5rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--color-primary);
    line-height: 1;
    flex-shrink: 0;
}

.logo img {
    width: 42px;
    height: auto;
}

.site-nav ul {
    list-style: none;
    display: flex;
    gap: 1.5rem;
    padding: 0;
    margin: 0;
}

.site-nav a {
    color: var(--color-text);
    font-weight: 600;
    transition: color 0.2s ease;
}

.site-nav a:hover,
.site-nav a.active {
    color: var(--color-primary);
}

.nav-toggle {
    display: none;
    background: transparent;
    border: none;
    flex-direction: column;
    gap: 0.3rem;
    padding: 0.3rem;
    cursor: pointer;
}

.nav-toggle span {
    width: 28px;
    height: 3px;
    background: var(--color-text);
    border-radius: 999px;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

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

/* Hero section */
.hero {
    padding: 4rem 0 2rem;
    text-align: center;
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: 0.75rem;
}

.flag-icon {
    font-size: 1.5rem;
    margin-left: 0.35rem;
    vertical-align: middle;
}

.hero p {
    color: var(--color-muted);
    margin-bottom: 2rem;
}

.lead-text {
    color: var(--color-text);
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.helper-text {
    margin-top: -1rem;
    margin-bottom: 2rem;
    color: var(--color-muted);
    font-size: 0.98rem;
}

.card {
    background: var(--color-background);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    border: 1px solid rgba(37, 99, 235, 0.08);
    text-align: left;
}

.calculator-form {
    display: grid;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.calculator-form label {
    font-weight: 600;
}

.calculator-form input,
.calculator-form select {
    padding: 0.75rem 1rem;
    border-radius: 12px;
    border: 1px solid var(--color-border);
    font-size: 1rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.calculator-form input:focus,
.calculator-form select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.field-note {
    color: var(--color-muted);
    font-size: 0.9rem;
    margin: 0;
}

.conversion-options {
    margin-top: 1.25rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.option-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.25rem 0.55rem;
    border-radius: 999px;
    background: rgba(37, 99, 235, 0.08);
    color: var(--color-primary);
    font-size: 0.78rem;
    font-weight: 600;
    border: 1px solid rgba(37, 99, 235, 0.15);
    transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.option-chip:hover {
    background: rgba(37, 99, 235, 0.18);
    color: var(--color-primary-dark);
    transform: translateY(-1px);
}

.result h2 {
    margin-top: 0;
}

.result p {
    margin-top: 0.5rem;
    background: #f9fafb;
    padding: 1rem;
    border-radius: 12px;
    border: 1px solid var(--color-border);
}

.result-message {
    font-weight: 600;
    background: rgba(37, 99, 235, 0.08);
    border-color: rgba(37, 99, 235, 0.2);
    color: var(--color-text);
}

.checkbox-row {
    display: flex;
    flex-wrap: wrap;
    gap: 1.25rem;
    margin-top: 1.25rem;
}

.checkbox-field {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    font-size: 0.95rem;
    color: var(--color-text);
    cursor: pointer;
    user-select: none;
}

.checkbox-field input {
    width: 18px;
    height: 18px;
    accent-color: var(--color-primary);
}

.mode-group {
    margin: 0 0 1rem;
    padding: 0;
    border: none;
    display: grid;
    gap: 0.4rem;
}

.mode-group legend {
    font-weight: 600;
    margin-bottom: 0.35rem;
    color: var(--color-text);
    font-size: 0.95rem;
}

.radio-field {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
    color: var(--color-text);
    cursor: pointer;
}

.radio-field input {
    width: 18px;
    height: 18px;
    accent-color: var(--color-primary);
}

.mode-group-inline {
    display: flex;
    flex-wrap: wrap;
    gap: 1.25rem;
    margin-bottom: 1.25rem;
}

.proportion-grid {
    display: grid;
    gap: 2rem;
    justify-items: center;
}

.proportion-row {
    display: grid;
    grid-template-columns: auto auto auto;
    align-items: center;
    gap: 1.5rem;
}

.proportion-row .input-block {
    max-width: 240px;
    width: 100%;
}

.proportion-row .input-block input {
    width: 100%;
}

.proportion-row .input-block span[data-label] {
    font-weight: 600;
    color: var(--color-text);
    cursor: text;
}

.proportion-row .input-block span[data-label]:focus {
    outline: 2px solid rgba(37, 99, 235, 0.25);
    border-radius: 6px;
    padding: 0 0.25rem;
}

.proportion-arrow {
    font-size: 1.2rem;
    letter-spacing: 0.35em;
    color: var(--color-muted);
    text-align: center;
    padding: 0 0.5rem;
    white-space: nowrap;
}

@media (max-width: 600px) {
    .proportion-grid {
        gap: 1.5rem;
    }

    .proportion-row {
        grid-template-columns: 1fr;
        gap: 0.75rem;
        justify-items: center;
    }

    .proportion-arrow {
        letter-spacing: 0.4em;
    }
}

.result-line {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.result-line .copy-btn {
    touch-action: manipulation;
}

.tip-form {
    gap: 1.5rem;
}

.tip-section {
    display: grid;
    gap: 1rem;
}

.input-addon {
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: center;
}

.input-addon .input-prefix {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 0.85rem;
    border: 1px solid var(--color-border);
    border-right: none;
    border-radius: 12px 0 0 12px;
    background: #f3f4f6;
    font-weight: 600;
    color: var(--color-muted);
}

.input-addon input {
    border-radius: 0 12px 12px 0;
    border-left: none;
}

.tip-result-grid {
    display: grid;
    gap: 0.75rem;
    margin-top: 1rem;
}

.tip-breakdown {
    margin-top: 1.75rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
    display: grid;
    gap: 0.75rem;
}

.tip-breakdown h3 {
    margin: 0 0 0.25rem;
    font-size: 1.05rem;
}

.tip-clear-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.6rem 1.35rem;
    border-radius: 999px;
    border: 1px solid rgba(37, 99, 235, 0.2);
    background: rgba(37, 99, 235, 0.08);
    color: var(--color-primary);
    font-weight: 600;
    font-size: 0.95rem;
    transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
    margin-bottom: 1.5rem;
    cursor: pointer;
}

.tip-clear-btn:hover {
    background: rgba(37, 99, 235, 0.18);
    color: var(--color-primary-dark);
    transform: translateY(-1px);
}

.average-result {
    margin-top: 1.75rem;
    display: grid;
    gap: 1rem;
}

.average-result h2 {
    margin: 0;
}

.average-result-box {
    background-color: #f4fff8;
    border: 1px solid #c2f0d1;
    padding: 1.25rem;
    border-radius: 12px;
    display: grid;
    gap: 0.75rem;
}

.average-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.average-label {
    font-weight: 600;
    color: var(--color-text);
}

.average-value-group {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.average-value {
    font-weight: 600;
    color: var(--color-text);
}

.average-row-highlight .average-value {
    color: #047857;
}

.average-copy-btn {
    font-size: 0.8rem;
}

.average-clear-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1.15rem;
    border-radius: 999px;
    border: 1px solid rgba(37, 99, 235, 0.2);
    background: rgba(37, 99, 235, 0.08);
    color: var(--color-primary);
    font-weight: 600;
    font-size: 0.9rem;
    transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
    margin-top: 0.5rem;
    cursor: pointer;
}

.average-clear-btn:hover {
    background: rgba(37, 99, 235, 0.18);
    color: var(--color-primary-dark);
    transform: translateY(-1px);
}

.hours-clear-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1.15rem;
    border-radius: 999px;
    border: 1px solid rgba(37, 99, 235, 0.2);
    background: rgba(37, 99, 235, 0.08);
    color: var(--color-primary);
    font-weight: 600;
    font-size: 0.9rem;
    transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
    margin-top: 0.5rem;
    cursor: pointer;
}

.hours-clear-btn:hover {
    background: rgba(37, 99, 235, 0.18);
    color: var(--color-primary-dark);
    transform: translateY(-1px);
}

.break-section {
    margin-top: 1.25rem;
    display: grid;
    gap: 1rem;
}

.break-presets {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.break-presets-label {
    font-weight: 600;
    color: var(--color-text);
    font-size: 0.95rem;
}

.break-preset-btn {
    padding: 0.5rem 1rem;
    border-radius: 8px;
    border: 1px solid rgba(37, 99, 235, 0.2);
    background: rgba(37, 99, 235, 0.08);
    color: var(--color-primary);
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.break-preset-btn:hover {
    background: rgba(37, 99, 235, 0.18);
    color: var(--color-primary-dark);
    transform: translateY(-1px);
}

.hours-action-buttons {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-top: 0.5rem;
}

.hours-copy-btn {
    margin-top: 0;
}

.hours-result-box {
    margin-top: 1.5rem;
    padding: 1.25rem;
    border-radius: 12px;
    border: 1px solid var(--color-border);
    background: var(--color-background);
    display: grid;
    gap: 0.85rem;
}

.hours-result-box.hours-result-normal {
    border-color: #22c55e;
    background: rgba(34, 197, 94, 0.05);
}

.hours-result-box.hours-result-short {
    border-color: #eab308;
    background: rgba(234, 179, 8, 0.05);
}

.hours-result-box.hours-result-overtime {
    border-color: #dc2626;
    background: rgba(220, 38, 38, 0.05);
}

.hours-result-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.hours-result-label {
    font-weight: 600;
    color: var(--color-text);
}

.hours-result-value {
    font-weight: 600;
    color: var(--color-text);
}

.hours-result-normal .hours-result-value {
    color: #047857;
}

.hours-result-short .hours-result-value {
    color: #a16207;
}

.hours-result-overtime .hours-result-value {
    color: #dc2626;
}

.hours-overtime-row {
    padding-top: 0.75rem;
    border-top: 1px solid rgba(220, 38, 38, 0.2);
}

.hours-placeholder {
    margin-top: 1.5rem;
}

.form-warning {
    margin: 0.75rem 0 0;
    font-weight: 600;
    color: #dc2626;
}

.time-input {
    text-transform: uppercase;
}

.input-with-unit {
    display: flex;
    gap: 0.5rem;
    align-items: stretch;
}

.input-with-unit input {
    flex: 1;
    min-width: 0;
}

.unit-select {
    padding: 0.75rem 0.85rem;
    border-radius: 12px;
    border: 1px solid var(--color-border);
    background: var(--color-background);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text);
    cursor: pointer;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    min-width: 70px;
}

.unit-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.height-feet-inches {
    margin-top: 1rem;
}

.imc-clear-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1.15rem;
    border-radius: 999px;
    border: 1px solid rgba(37, 99, 235, 0.2);
    background: rgba(37, 99, 235, 0.08);
    color: var(--color-primary);
    font-weight: 600;
    font-size: 0.9rem;
    transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
    margin-top: 0.5rem;
    cursor: pointer;
}

.imc-clear-btn:hover {
    background: rgba(37, 99, 235, 0.18);
    color: var(--color-primary-dark);
    transform: translateY(-1px);
}

.imc-main-result {
    margin-top: 1.5rem;
}

.imc-value-box {
    background: var(--color-background);
    border: 2px solid var(--color-border);
    border-radius: 14px;
    padding: 1.5rem;
    text-align: center;
    margin-bottom: 1.25rem;
    transition: border-color 0.3s ease, background 0.3s ease;
}

.imc-value-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-muted);
    margin: 0 0 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.imc-value-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin: 0.25rem 0;
    line-height: 1.2;
}

.imc-value-status {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text);
    margin: 0.5rem 0 0;
}

.imc-progress-bar {
    width: 100%;
    height: 12px;
    background: #e5e7eb;
    border-radius: 999px;
    overflow: hidden;
    margin: 1.25rem 0;
    position: relative;
}

.imc-progress-fill {
    height: 100%;
    width: 0%;
    background: var(--color-primary);
    border-radius: 999px;
    transition: width 0.4s ease, background-color 0.3s ease;
}

.imc-risk {
    margin: 1rem 0 0.75rem;
    font-weight: 600;
    color: var(--color-text);
    font-size: 1rem;
}

.imc-ideal-weight {
    margin: 1rem 0;
    padding: 1rem;
    background: rgba(37, 99, 235, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(37, 99, 235, 0.1);
}

.imc-ideal-weight p {
    margin: 0;
    color: var(--color-text);
}

.imc-ideal-weight strong {
    color: var(--color-primary);
}

.imc-adjustment {
    margin: 1rem 0;
    padding: 1rem;
    background: rgba(251, 191, 36, 0.08);
    border-radius: 12px;
    border: 1px solid rgba(251, 191, 36, 0.2);
}

.imc-adjustment p {
    margin: 0;
    color: var(--color-text);
    font-weight: 500;
}

.imc-copy-btn {
    margin-top: 1rem;
}

.imc-table-container {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--color-border);
}

.imc-table-container h3 {
    font-size: 1.25rem;
    margin: 0 0 1rem;
    color: var(--color-text);
}

.imc-classification-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 0.5rem;
    background: var(--color-background);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--color-border);
}

.imc-classification-table thead {
    background: rgba(37, 99, 235, 0.08);
}

.imc-classification-table th {
    padding: 0.85rem 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--color-text);
    font-size: 0.95rem;
    border-bottom: 2px solid var(--color-border);
}

.imc-classification-table td {
    padding: 0.75rem 1rem;
    color: var(--color-text);
    border-bottom: 1px solid rgba(37, 99, 235, 0.08);
}

.imc-classification-table tbody tr:last-child td {
    border-bottom: none;
}

.imc-classification-table tbody tr:hover {
    background: rgba(37, 99, 235, 0.03);
}

.imc-placeholder {
    margin-top: 1.5rem;
}

.basic-grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.input-block {
    display: grid;
    gap: 0.35rem;
}

.input-block span {
    font-weight: 600;
    color: var(--color-text);
}

.calculator-hint {
    margin-top: 1rem;
    color: var(--color-muted);
    font-size: 0.92rem;
}

.clear-basic-btn {
    margin-top: 0.75rem;
    align-self: start;
    padding: 0.35rem 0.85rem;
    border-radius: 999px;
    border: 1px solid rgba(37, 99, 235, 0.2);
    background: rgba(37, 99, 235, 0.1);
    color: var(--color-primary);
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
    touch-action: manipulation;
}

.clear-basic-btn:hover {
    background: rgba(37, 99, 235, 0.18);
    color: var(--color-primary-dark);
    transform: translateY(-1px);
}

.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.65rem 1.5rem;
    border-radius: 999px;
    background: var(--color-primary);
    color: #fff;
    font-weight: 600;
    text-decoration: none;
    margin-top: 1.5rem;
    transition: background 0.2s ease, transform 0.2s ease;
}

.cta-button:hover {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
}

.top-ten-preview .container {
    text-align: center;
}

.calculator-info {
    margin: 2.5rem 0 4rem;
}

.calculator-info h2:first-of-type {
    margin-top: 0;
}

.advanced-options {
    display: flex;
    flex-wrap: wrap;
    gap: 1.25rem;
    margin: 1rem 0 0.75rem;
}

.product-notes {
    width: 100%;
    min-height: 84px;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    resize: vertical;
    display: none;
    background: #fff;
}

.product-notes.visible {
    display: block;
}

.items-table {
    margin-top: 1rem;
    border: 1px solid rgba(37, 99, 235, 0.12);
    border-radius: 14px;
    background: #f8fafc;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.items-header,
.item-row {
    display: grid;
    grid-template-columns: minmax(90px, 0.9fr) minmax(120px, 1fr) minmax(140px, 1fr) auto;
    gap: 0.75rem;
    align-items: center;
    padding: 0.75rem 1rem;
}

.items-header {
    background: rgba(37, 99, 235, 0.06);
    font-weight: 600;
    color: var(--color-text);
}

.items-body {
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
    padding: 0.75rem 1rem 1rem;
}

.items-footer {
    padding: 0.75rem 1rem 1rem;
    border-top: 1px solid rgba(37, 99, 235, 0.1);
    display: flex;
    justify-content: flex-start;
    gap: 0.5rem;
}

.item-row {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 18px 30px -26px rgba(15, 23, 42, 0.3);
}

.item-row input {
    width: 100%;
    max-width: 100%;
    padding: 0.55rem 0.75rem;
    border-radius: 10px;
    border: 1px solid var(--color-border);
    font-size: 0.95rem;
}

.item-row .product-description {
    grid-column: 1 / -1;
    display: none;
    margin-top: 0.5rem;
    padding: 0.55rem 0.75rem;
    border-radius: 10px;
    border: 1px solid var(--color-border);
    font-size: 0.95rem;
    background: #fff;
}

.item-row.descriptions-enabled .product-description {
    display: block;
}

.item-action {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 1px solid rgba(37, 99, 235, 0.25);
    background: rgba(37, 99, 235, 0.12);
    color: var(--color-primary);
    font-weight: 700;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s ease, background 0.2s ease;
    touch-action: manipulation;
}

.item-action:hover {
    transform: translateY(-1px);
}

.item-action.add {
    background: rgba(16, 185, 129, 0.15);
    border-color: rgba(16, 185, 129, 0.35);
    color: #047857;
}

.item-action.remove {
    background: rgba(244, 63, 94, 0.12);
    border-color: rgba(239, 68, 68, 0.35);
    color: #dc2626;
}

.calculation-note {
    margin-bottom: 1rem;
    color: var(--color-muted);
    font-size: 0.95rem;
}

.output-section {
    margin-top: 1.5rem;
    border: 1px solid rgba(37, 99, 235, 0.12);
    border-radius: 14px;
    padding: 1.25rem;
    background: #f8fafc;
    box-shadow: 0 18px 35px -32px rgba(37, 99, 235, 0.45);
}

.output-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-top: 0.25rem;
}

.output-section .output-header:first-of-type {
    margin-top: 0;
}

.output-text {
    margin: 0.5rem 0 0;
    color: var(--color-text);
    line-height: 1.6;
}

.words-header {
    margin-top: 1.5rem;
}

.copy-btn {
    padding: 0.35rem 0.85rem;
    border-radius: 999px;
    border: 1px solid rgba(37, 99, 235, 0.2);
    background: rgba(37, 99, 235, 0.1);
    color: var(--color-primary);
    font-weight: 600;
    font-size: 0.82rem;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
    touch-action: manipulation;
}

.copy-btn:hover {
    background: rgba(37, 99, 235, 0.18);
    color: var(--color-primary-dark);
    transform: translateY(-1px);
}

.copy-btn.copied {
    background: rgba(34, 197, 94, 0.18);
    border-color: rgba(34, 197, 94, 0.35);
    color: #047857;
}

.divider {
    margin: 2rem 0 1.75rem;
    height: 1px;
    background: var(--color-border);
}

.ordinal-block h3 {
    margin: 0 0 0.5rem;
    font-size: 1.25rem;
    color: var(--color-text);
}

.ordinal-note {
    margin: 0 0 1rem;
    color: var(--color-muted);
    font-size: 0.95rem;
}

.ordinal-form {
    display: grid;
    gap: 1rem;
}

.ordinal-form input {
    padding: 0.75rem 1rem;
    border-radius: 12px;
    border: 1px solid var(--color-border);
    font-size: 1rem;
}

.ordinal-form input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.18);
}

@media (max-width: 600px) {
    .copy-btn {
        width: 100%;
        justify-content: center;
    }

    .item-row .product-description {
        grid-column: 1 / -1;
    }

    .items-header {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 0.4rem 0.65rem;
        font-size: 0.85rem;
    }

    .items-header span:nth-child(1) {
        grid-column: 1;
    }

    .items-header span:nth-child(2) {
        grid-column: 2;
    }

    .items-header span:nth-child(3) {
        grid-column: 1 / -1;
    }

    .items-header span:nth-child(4) {
        display: none;
    }

    .item-row {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 0.65rem;
        padding: 0.75rem;
    }

    .item-action {
        width: 28px;
        height: 28px;
        font-size: 0.85rem;
    }

    .item-row input[data-row="quantity"] {
        grid-column: 1;
    }

    .item-row input[data-row="unit"] {
        grid-column: 2;
    }

    .item-row input[data-row="total"] {
        grid-column: 1 / -1;
    }

    .item-row .product-description {
        grid-column: 1 / -1;
    }

    .item-row [data-action="clear-row"] {
        grid-column: 2;
        justify-self: end;
    }
}

/* Sections */
.seo-section,
.info-section,
.page-content,
.calculator-list {
    padding: 3rem 0;
}

.seo-section h2,
.info-section h2,
.page-content h2 {
    font-size: 1.75rem;
    margin-top: 2rem;
}

.seo-section p,
.info-section p,
.page-content p {
    color: var(--color-muted);
}

.faq-section {
    padding: 3rem 0 4rem;
    background: #f3f4f6;
}

.faq-section h2 {
    text-align: center;
    margin-bottom: 2rem;
}

.faq-item {
    background: var(--color-background);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow);
    border: 1px solid rgba(37, 99, 235, 0.08);
}

.faq-item h3 {
    margin-top: 0;
}

.cards-grid {
    display: grid;
    gap: 2rem;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.button {
    display: inline-block;
    margin-top: 1rem;
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    background: var(--color-primary);
    color: #fff;
    font-weight: 600;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.button:hover {
    transform: translateY(-2px);
    background: var(--color-primary-dark);
    box-shadow: 0 15px 30px -20px rgba(37, 99, 235, 0.6);
}

.calculator-directory {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem 3rem;
    margin-top: 2.5rem;
}

.calc-entry {
    display: grid;
    grid-template-columns: 72px 1fr;
    gap: 1rem;
    align-items: center;
    text-decoration: none;
    color: inherit;
    padding: 1.25rem;
    border-radius: 18px;
    background: #ffffff;
    box-shadow: var(--shadow);
    border: 1px solid rgba(15, 23, 42, 0.08);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.calc-entry:hover {
    transform: translateY(-4px);
    box-shadow: 0 22px 45px -30px rgba(37, 99, 235, 0.45);
}

.calc-icon {
    width: 72px;
    height: 72px;
    border-radius: 20px;
    display: grid;
    place-items: center;
    font-weight: 700;
    color: #fff;
    font-size: 1.1rem;
    text-transform: uppercase;
}

.calc-entry h3 {
    margin: 0;
    color: var(--color-primary);
    font-size: 1.1rem;
}

.calc-entry p {
    margin: 0.35rem 0 0;
    color: var(--color-muted);
    font-size: 0.95rem;
    line-height: 1.5;
}

.legal-text h2 {
    margin-top: 2.5rem;
}

.legal-text p,
.legal-text li {
    color: var(--color-muted);
}

.legal-text a {
    color: var(--color-primary);
}

/* Footer */
.site-footer {
    background: #0f172a;
    color: #e2e8f0;
    padding: 3rem 0 2rem;
}

.footer-widgets {
    display: grid;
    gap: 2rem;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    margin-bottom: 2rem;
}

.footer-widget h4 {
    margin-bottom: 1.2rem;
}

.footer-widget ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 0.75rem;
}

.footer-widget a {
    color: #cbd5f5;
    transition: color 0.2s ease;
}

.footer-widget a:hover {
    color: #fff;
}

.footer-logo {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-logo img {
    width: 64px;
}

.social-links {
    display: flex;
    gap: 0.75rem;
    margin-top: 1rem;
}

.social-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    background: rgba(37, 99, 235, 0.3);
    border: 2px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
    text-decoration: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.social-icon::before {
    font-size: 1rem;
    font-weight: 700;
}

.social-icon.facebook::before {
    content: "f";
}

.social-icon.twitter::before {
    content: "x";
}

.social-icon.pinterest::before {
    content: "p";
}

.social-icon.instagram::before {
    content: "i";
}

.social-icon.facebook {
    background: linear-gradient(135deg, #1877f2, #0d5fbf);
    border-color: rgba(24, 119, 242, 0.4);
}

.social-icon.twitter {
    background: linear-gradient(135deg, #1da1f2, #0d8cd8);
    border-color: rgba(29, 161, 242, 0.4);
}

.social-icon.pinterest {
    background: linear-gradient(135deg, #e60023, #cc001f);
    border-color: rgba(230, 0, 35, 0.4);
}

.social-icon.instagram {
    background: radial-gradient(circle at 30% 30%, #fdf497 0%, #fd5949 40%, #d6249f 70%, #285AEB 100%);
    border-color: rgba(253, 89, 73, 0.5);
}

.social-icon.facebook:hover {
    background: linear-gradient(135deg, #145dbf, #0d4a9f);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 4px 12px rgba(24, 119, 242, 0.4);
}

.social-icon.twitter:hover {
    background: linear-gradient(135deg, #1a8cd8, #0d6ba8);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 4px 12px rgba(29, 161, 242, 0.4);
}

.social-icon.pinterest:hover {
    background: linear-gradient(135deg, #cc001f, #b3001b);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 4px 12px rgba(230, 0, 35, 0.4);
}

.social-icon.instagram:hover {
    background: radial-gradient(circle at 30% 30%, #fdf497 0%, #ff6a5b 40%, #e1306c 70%, #3b65ff 100%);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 4px 12px rgba(225, 48, 108, 0.5);
}

.social-icon:hover {
    border-color: rgba(255, 255, 255, 0.5);
}

.footer-bottom {
    border-top: 1px solid rgba(148, 163, 184, 0.2);
    padding-top: 1.5rem;
    text-align: center;
}

body.menu-open {
    overflow: hidden;
}

/* Responsive navigation */
@media (max-width: 900px) {
    .nav-toggle {
        display: flex;
        position: relative;
        z-index: 1001;
    }

    .site-nav {
        position: fixed;
        top: 72px;
        right: 5%;
        background: var(--color-background);
        width: min(320px, 90vw);
        border-radius: 16px;
        box-shadow: 0 25px 50px -35px rgba(15, 23, 42, 0.35);
        border: 1px solid var(--color-border);
        display: none;
        opacity: 0;
        transform: translateY(-10px);
        transition: opacity 0.25s ease, transform 0.25s ease;
        z-index: 1000;
    }

    .site-nav.open {
        display: block;
        opacity: 1;
        transform: translateY(0);
    }

    .site-nav ul {
        flex-direction: column;
        padding: 1.25rem;
        gap: 0.75rem;
    }

    .site-nav a {
        display: block;
        padding: 0.6rem 0.75rem;
        border-radius: 12px;
        font-size: 1rem;
    }

    .site-nav a:hover,
    .site-nav a.active {
        background: rgba(37, 99, 235, 0.1);
    }

    .header-inner {
        position: relative;
    }
}

@media (max-width: 600px) {
    .card {
        padding: 1.5rem;
    }

    .hero {
        padding-top: 3rem;
    }

    .faq-section {
        padding: 2.5rem 0;
    }

    .calculator-directory {
        grid-template-columns: 1fr;
    }

    .footer-widgets {
        text-align: center;
    }

    .footer-widget {
        text-align: center;
    }

    .footer-widget ul {
        justify-items: center;
    }

    .footer-widget ul li {
        list-style: none;
    }

    .footer-logo {
        align-items: center;
        text-align: center;
    }

    .footer-logo img {
        margin: 0 auto;
    }

    .social-links {
        justify-content: center;
        margin-top: 1rem;
    }

    .input-with-unit {
        flex-direction: column;
        gap: 0.5rem;
    }

    .unit-select {
        width: 100%;
    }

    .imc-value-box {
        padding: 1.25rem;
    }

    .imc-value-number {
        font-size: 2rem;
    }

    .imc-classification-table {
        font-size: 0.9rem;
    }

    .imc-classification-table th,
    .imc-classification-table td {
        padding: 0.65rem 0.75rem;
    }

    .break-presets {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .break-preset-btn {
        width: 100%;
        justify-content: center;
    }

    .hours-action-buttons {
        flex-direction: column;
    }

    .hours-action-buttons .hours-clear-btn,
    .hours-action-buttons .hours-copy-btn {
        width: 100%;
        justify-content: center;
    }

    .hours-result-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
    }

    .hours-result-box {
        padding: 1rem;
        gap: 0.75rem;
    }

    .hours-result-label {
        font-size: 0.9rem;
    }

    .hours-result-value {
        font-size: 0.95rem;
    }

    .break-section {
        margin-top: 1rem;
    }

    .break-presets-label {
        font-size: 0.9rem;
    }
}