:root {
    --accent: #27acd9;
    --bg: #e4e5e9;
    --text: #1a1a1a;
    --gradient: linear-gradient(to right, #667eea, #764ba2);
    --surface: #ffffff83;
    --border: #c9cfdb;
    --muted: #5f6675;
    --patterns-scroll-target-offset: 7.4rem;
}
html, body {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}
* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: "BIZ UDPGothic", sans-serif;
}

h1{
    font-size:1.8rem;
}

main {
    width: min(820px, 97%);
    background: var(--bg);
    padding: 1.25rem 0 2rem;
    margin:0 auto;
}

section{
    margin: 10px 9px;
}

#patternTitle{
    margin: 5px 0 -4px 0;
}

.patterns-header {
    background: var(--gradient);
    color: #fff;
}

.patterns-navbar {
    background: rgba(0, 0, 0, 0.35);
}

.patterns-navbar__inner {
    width: min(1120px, 92%);
    margin: 0 auto;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    padding: 0.65rem 0;
}

.patterns-navbar a,
.patterns-navbar button {
    text-decoration: none;
}

.patterns-brand {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    color: #fff;
}

.patterns-brand:hover,
.patterns-brand:focus-visible {
    color: #e7ebff;
}

.patterns-brand__logo {
    width: 46px;
    height: 46px;
    display: block;
}

.patterns-brand__text {
    display: flex;
    flex-direction: column;
    line-height: 1.25;
}

.patterns-brand__legal {
    font-size: 0.73rem;
    color: #d7deff;
    font-family: "BIZ UDPGothic", sans-serif;
}

.patterns-brand__name {
    color: #fff;
    font-family: "BIZ UDPGothic", sans-serif;
    font-weight: 700;
    font-size: 1rem;
}

.patterns-nav-toggle {
    margin-left: auto;
    width: 42px;
    height: 42px;
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    cursor: pointer;
}

.patterns-nav-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    border-radius: 2px;
    background: #fff;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.patterns-nav-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.patterns-nav-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}

.patterns-nav-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

.patterns-nav-menu {
    display: none;
    width: 100%;
}

.patterns-nav-menu.is-open {
    display: block;
}

.patterns-nav-list,
.patterns-dropdown {
    margin: 0;
    padding: 0;
    list-style: none;
}

.patterns-nav-list {
    display: flex;
    flex-direction: column;
    gap: 0.18rem;
    padding: 0.25rem 0 0.45rem;
}

.patterns-nav-link {
    display: inline-flex;
    align-items: center;
    min-height: 40px;
    width: 100%;
    border: 0;
    border-radius: 8px;
    background: transparent;
    color: #fff;
    padding: 0.5rem 0.75rem;
    font-family: "BIZ UDPGothic", sans-serif;
    font-size: 0.96rem;
    cursor: pointer;
}

.patterns-nav-link:hover,
.patterns-nav-link:focus-visible {
    background: rgba(255, 255, 255, 0.18);
    color: #fff;
}

.patterns-nav-link.active {
    background: rgba(255, 255, 255, 0.22);
    font-weight: 700;
}

.patterns-nav-link--button {
    justify-content: space-between;
}

.patterns-nav-link--button::after {
    content: "";
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 6px solid currentColor;
    margin-left: 0.5rem;
    transition: transform 0.2s ease;
}

.patterns-nav-link--button[aria-expanded="true"]::after {
    transform: rotate(180deg);
}

.patterns-dropdown {
    padding: 0.35rem;
    border-radius: 10px;
    background: rgba(10, 13, 33, 0.45);
    margin: 0.2rem 0 0.4rem;
}

.patterns-dropdown[hidden] {
    display: none;
}

.patterns-dropdown-link {
    display: block;
    padding: 0.45rem 0.7rem;
    border-radius: 8px;
    color: #f6f7ff;
    font-family: "BIZ UDPGothic", sans-serif;
    font-size: 0.93rem;
}

.patterns-dropdown-link:hover,
.patterns-dropdown-link:focus-visible {
    background: rgba(255, 255, 255, 0.16);
    color: #fff;
}

.patterns-dropdown-link.active {
    background: rgba(70, 194, 255, 0.22);
    color: #fff;
    font-weight: 700;
}

.patterns-nav-item--social {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.55rem;
    padding: 0.2rem 0.75rem 0.1rem;
}

.patterns-social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    color: #fff;
    border-radius: 999px;
}

.patterns-social-link:hover,
.patterns-social-link:focus-visible {
    background: rgba(255, 255, 255, 0.18);
    color: #fff;
}

.patterns-brand:focus-visible,
.patterns-nav-toggle:focus-visible,
.patterns-nav-link:focus-visible,
.patterns-dropdown-link:focus-visible,
.patterns-social-link:focus-visible {
    outline: 3px solid #9dc0ff;
    outline-offset: 2px;
}


.patterns-header h1 {
    margin: 0;
    color: #fff;
    border-bottom: 0;
    padding: 0;
    display: block;
}

.patterns-header p {
    margin: 0.65rem 0 0;
}

.version{
    text-align: right;
}

.patterns-project-overview {
    margin: 0.8rem 0;
    padding: 0.85rem .4rem;
    border-radius: 8px;
}

.patterns-project-overview p {
    margin: 0;
    line-height: 1.8;
}

.patterns-project-overview a {
    color: #0d5485;
    text-decoration: underline;
    text-underline-offset: 0.15em;
}

.patterns-project-overview a:hover,
.patterns-project-overview a:focus-visible {
    color: #083b5d;
}

.patterns-tools,
.patterns-list-section {
    margin: 1rem auto;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: var(--surface);
    padding: 1rem;
}

.patterns-list-section{
    min-height: 700px;
}

.patterns-tools {
    border-color: transparent;
    background: none;
    padding:0;
    max-width: 720px;
    margin: 1rem auto 1rem 0;
}

.patterns-list-section h2 {
    border-bottom-color: var(--accent);
    margin: 0 0 1rem;
}

.patterns-controls {
    display: grid;
    gap: 0.75rem;
}

.patterns-controls__field {
    position: relative;
}

.patterns-controls input {
    width: 100%;
    min-height: 48px;
    border: 1px solid #b2bac7;
    border-radius: 12px;
    font-size: 1rem;
    padding: 0.68rem 0.95rem 0.68rem 2.75rem;
    font-family: "BIZ UDPMincho", sans-serif;
    background: #fff;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.95), 0 2px 8px rgba(24, 40, 74, 0.04);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.patterns-controls__icon {
    position: absolute;
    left: 0.92rem;
    top: 50%;
    transform: translateY(-50%);
    width: 1.1rem;
    height: 1.1rem;
    color: #6c7d9f;
    pointer-events: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.patterns-controls__icon svg {
    width: 100%;
    height: 100%;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.patterns-controls input::placeholder {
    color: #8a94aa;
}

.patterns-controls input:focus-visible {
    outline: none;
    border-color: #6f9ff5;
    box-shadow: 0 0 0 3px rgba(111, 159, 245, 0.22), 0 8px 16px rgba(24, 40, 74, 0.1);
}

.result-count {
    margin: 0;
    padding: 0;
    border: none;
    background: transparent;
    font-family: "BIZ UDPGothic", sans-serif;
    font-weight: 400;
    font-size: 0.78rem;
    letter-spacing: 0.01em;
}

.patterns-notice-trigger {
    width: min(1120px, 92%);
    margin: 1.25rem auto 0.9rem;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.7rem;
}

.patterns-notice-trigger__link,
.patterns-notice-trigger__button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 34px;
    padding: 0.32rem 0.72rem;
    border-radius: 999px;
    border: 1px solid #c7cfde;
    background: #f4f6fb;
    color: #4f5c78;
    cursor: pointer;
    font-family: "BIZ UDPGothic", sans-serif;
    font-size: 0.8rem;
    line-height: 1.2;
    text-decoration: none;
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.patterns-notice-trigger__link {
    background: #edf6fd;
    border-color: #d7e0e8;
    color: #284e62;
}

.patterns-notice-trigger__button {
    appearance: none;
    -webkit-appearance: none;
    background: #f6f7fb;
    border-color: #ccd3e2;
    color: #5b647b;
    font-weight: 500;
}

.patterns-notice-trigger__link:hover,
.patterns-notice-trigger__link:focus-visible {
    background: #e7f5ff;
    border-color: #aacde4;
    color: #103b52;
    box-shadow: 0 2px 8px rgba(14, 81, 119, 0.07);
}

.patterns-notice-trigger__button:hover,
.patterns-notice-trigger__button:focus-visible {
    background: #edf1fa;
    border-color: #b6c1da;
    color: #454f68;
    box-shadow: 0 2px 8px rgba(66, 79, 120, 0.07);
}

.patterns-notice-trigger__link:focus-visible,
.patterns-notice-trigger__button:focus-visible {
    outline: 3px solid #8cb5ff;
    outline-offset: 2px;
}

.patterns-list {
    display: grid;
}

.patterns-list-section {
    --patterns-sticky-top-category: 0.35rem;
    --patterns-sticky-top-group: 2.35rem;
    --patterns-sticky-top-pattern: 4.8rem;
    --patterns-follow-indent-category: 0rem;
    --patterns-follow-indent-group: 0.4rem;
    --patterns-follow-indent-pattern: 0rem;
}

.pattern-category-heading,
.pattern-group-summary,
.pattern-card[open] > summary {
    transition: background-color 0.16s ease, box-shadow 0.16s ease, transform 0.16s ease;
}

.pattern-group-accordion > .pattern-group-summary {
    position: sticky;
    top: var(--patterns-sticky-top-group);
    z-index: 24;
    background: rgba(246, 248, 252, 0.9);
    transform: translateX(0);
    overflow-anchor: none;
}

.pattern-card[open] > summary {
    position: sticky;
    top: var(--patterns-sticky-top-pattern);
    z-index: 22;
    background: rgba(246, 251, 255, 0.95);
    border-radius: 12px 12px 0 0;
    transform: translateX(0);
    overflow-anchor: none;
}

.pattern-category-section {
    display: grid;
    gap: 0.55rem;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
}

.pattern-category-heading {
    margin: 0.5rem 0.1rem;
    padding: 0.3rem 0.58rem 0.3rem 0.72rem;
    border: none;
    border-left: 3px solid #8b9ad8;
    font-size: 1.08rem;
    line-height: 1.4;
    color: #24314f;
    font-family: "BIZ UDPGothic", sans-serif;
    position: sticky;
    top: var(--patterns-sticky-top-category);
    z-index: 26;
    background: transparent;
    box-shadow: none;
    transform: translateX(0);
}

.pattern-group-list {
    display: grid;
    gap: 0.62rem;
    margin: 0;
}

.pattern-group-accordion {
    border: 1px solid #ccd3e3;
    border-radius: 10px;
    background: #fff;
    overflow: hidden;
}

.pattern-group-accordion[open] {
    box-shadow: 0 1px 9px rgba(27, 43, 81, 0.08);
    overflow: visible;
}

.pattern-group-accordion:not([open]) > .pattern-group-summary {
    border-radius: 10px;
}

.pattern-group-accordion[open] > .pattern-group-summary {
    border-radius: 10px 10px 0 0;
}

.pattern-group-accordion[open] > .pattern-group-body {
    border-radius: 0 0 10px 10px;
}

.pattern-group-summary {
    list-style: none;
    cursor: pointer;
    margin: 0;
    padding: 0.75rem 0.95rem;
    font-family: "BIZ UDPGothic", sans-serif;
    font-weight: 700;
    font-size: 0.97rem;
    color: #2c3a5c;
    background: #f6f8fc;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
}

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

.pattern-group-summary::after {
    content: "";
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 6px solid currentColor;
    transition: transform 0.2s ease;
}

.pattern-group-accordion[open] > .pattern-group-summary::after {
    transform: rotate(180deg);
}

.pattern-group-summary:hover {
    background: #eef2fa;
}

.pattern-group-summary:focus-visible {
    outline: 3px solid #8cb5ff;
    outline-offset: -3px;
}

.pattern-category-heading.is-sticky-following {
    background: var(--cat-sticky-bg, rgba(240, 244, 252, 0.97));
    box-shadow: 0 0 0 1px rgba(109, 124, 160, 0.1), 0 4px 5px rgba(31, 45, 74, 0.06);
    transform: translateX(var(--patterns-follow-indent-category));
}

.pattern-group-accordion[open] > .pattern-group-summary.is-sticky-following {
    background: rgba(243, 247, 253, 0.97);
    box-shadow: 0 2px 7px rgba(35, 52, 86, 0.08);
    transform: translateX(var(--patterns-follow-indent-group));
    width: calc(100% - var(--patterns-follow-indent-group));
    border-radius: 0;
}

.pattern-card[open] > summary.is-sticky-following {
    background: rgba(245, 251, 255, 0.98);
    box-shadow: 0 4px 13px rgba(27, 43, 81, 0.1);
    transform: translateX(var(--patterns-follow-indent-pattern));
    border-radius: 0;
    padding: 0.7rem 1.1rem 0.7rem 1.1rem;
}

summary.is-sticky-following .pattern-number {
    font-size: 0.9rem;
}

.pattern-group-body {
    padding: 0.74rem;
    display: grid;
    gap: 0.74rem;
}

.pattern-card {
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    background: #fff;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
    box-shadow: 0 1px 11px rgba(27, 43, 81, 0.15);
}

.pattern-card:not([open]):hover,
.pattern-card:not([open]):focus-within {
    border-color: #9fb0d5;
    box-shadow: 0 8px 20px rgba(27, 43, 81, 0.2);
}

.pattern-card[open] {
    cursor: pointer;
    overflow: visible;
}

.pattern-card > summary {
    border-radius: 12px;
}

.pattern-card[open] > .pattern-body {
    border-radius: 0 0 12px 12px;
}

.pattern-card summary {
    list-style: none;
    cursor: pointer;
    padding: 1.15rem 1.25rem 2.4rem;
    background: #fff;
    display: block;
    position: relative;
    text-align: center;
    transition: background 0.15s ease;
}

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

.pattern-card summary:focus-visible {
    outline: 3px solid #8cb5ff;
    outline-offset: -3px;
}

.pattern-summary-main {
    min-width: 0;
    display: grid;
    gap: 0.65rem;
    justify-items: center;
}

.pattern-summary-preview {
    display: grid;
    gap: 0.7rem;
    justify-items: center;
    width: 100%;
}

.pattern-summary-image-wrap {
    width: 100%;
    max-width: 320px;
    aspect-ratio: 2339 / 1169;
    border-radius: 8px;
    overflow: hidden;
}

.pattern-summary-image {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: contain;
}

.pattern-summary-quote {
    margin: 0;
    padding: 0.6rem 0.9rem;
    border-left: 3px solid #8b9ad8;
    border-radius: 0 8px 8px 0;
    background: #f6f8fc;
    text-align: left;
    max-width: 480px;
    width: 100%;
}

.pattern-summary-quote__text {
    margin: 0;
    color: #2f3442;
    font-size: 0.91rem;
    line-height: 1.7;
}

.pattern-summary-quote__cite {
    display: block;
    margin-top: 0.42rem;
    color: #4f5b78;
    font-size: 0.8rem;
    font-style: normal;
}

.pattern-summary-flow {
    display: grid;
    gap: 0.25rem;
    text-align: left;
    max-width: 480px;
    width: 100%;
}

.pattern-summary-flow__text {
    margin: 0;
    color: #3a3f4d;
    font-size: 0.93rem;
    line-height: 1.75;
}

.pattern-summary-flow__text--strong {
    font-weight: 700;
    color: var(--text);
}

.pattern-summary-flow__arrow {
    margin: 0.05rem 0;
    color: #3e4f8b;
    font-family: "BIZ UDPGothic", sans-serif;
    font-weight: 700;
    font-size: 0.84rem;
    line-height: 1.45;
    text-align: center;
}

.pattern-summary-action {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    position: absolute;
    bottom: 0.7rem;
    right: 0.85rem;
    padding: 0;
    background: none;
    border: none;
    color: var(--accent);
    font-family: "BIZ UDPGothic", sans-serif;
    font-size: 0.72rem;
    font-weight: 400;
    line-height: 1.15;
    letter-spacing: 0.01em;
    white-space: nowrap;
    pointer-events: none;
    transition: color 0.15s ease;
}

.pattern-summary-action__label::after {
    content: "";
    display: inline-block;
    width: 0.45em;
    height: 0.45em;
    margin-left: 0.35rem;
    border-right: 1.5px solid currentColor;
    border-bottom: 1.5px solid currentColor;
    transform: translateY(-0.1em) rotate(45deg);
    vertical-align: middle;
}

.pattern-card[open] .pattern-summary-action {
    display: none;
}

.pattern-card summary:hover .pattern-summary-action,
.pattern-card summary:focus-visible .pattern-summary-action {
    color: #0e87af;
}

.pattern-number {
    display: block;
    font-family: "BIZ UDPGothic", sans-serif;
    font-weight: 700;
    color: var(--text);
    font-size: 1.1rem;
    letter-spacing: 0.02em;
}

.pattern-name {
    font-size: 1.2rem;
    margin: 0;
    font-family: "BIZ UDPGothic", sans-serif;
}

.pattern-meta {
    margin: 0;
    display: none;
    color: var(--muted);
    font-size: 0.88rem;
    letter-spacing: 0.01em;
}

.pattern-meta-link {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 0.14em;
}

.pattern-meta-link:hover,
.pattern-meta-link:focus-visible {
    color: #214f97;
}

.pattern-card[open] summary {
    background: rgba(246, 251, 255, 0.92);
    padding-bottom: 1rem;
}
.pattern-card[open] .pattern-summary-main {
    justify-items: start;
    text-align: left;
}

.pattern-card[open] .pattern-meta {
    display: block;
}
.pattern-card[open] > summary.is-sticky-following .pattern-meta {
    display: none;
}

.pattern-card[open] .pattern-summary-preview {
    display: none;
}

.pattern-intro {
    margin: 0;
    line-height: 1.7;
    color: #3a3f4d;
    font-size: 0.96rem;
}

.pattern-body {
    padding: 0rem 1.15rem 1rem;
    display: grid;
    gap: 0.75rem;
}

.pattern-share-actions {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    flex-wrap: wrap;
    column-gap: 0.5rem;
    row-gap: 0.38rem;
    margin-top: 0.55rem;
    padding: 0.2rem 0.15rem 0 0.15rem;
    cursor: default;
}

.pattern-share-prompt {
    margin-right: 0.07rem;
    color: #4e5a77;
    font-family: "BIZ UDPGothic", sans-serif;
    font-size: 0.8rem;
    font-weight: 600;
    line-height: 1.25;
    letter-spacing: 0.03em;
    white-space: nowrap;
    pointer-events: none;
    user-select: none;
}

.pattern-share-pointer {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: auto;
    height: auto;
    margin-right: 0.08rem;
    flex: 0 0 auto;
    color: #5b6580;
    line-height: 1;
    pointer-events: none;
    user-select: none;
}

.pattern-share-pointer::before {
    content: "→";
    font-size: 0.9rem;
    font-weight: 700;
    line-height: 1;
}

.pattern-share-pointer::after {
    content: none;
}

.pattern-share-button {
    position: relative;
    width: 44px;
    height: 44px;
    border: 1px solid #c8d0df;
    border-radius: 999px;
    background: linear-gradient(180deg, #ffffff, #f4f7ff);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    cursor: pointer;
    padding: 0;
    line-height: 1;
    appearance: none;
    -webkit-appearance: none;
    transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease, background 0.2s ease;
    overflow: clip;
    box-shadow: 0 2px 9px rgba(40, 60, 96, 0.14);
}

.pattern-share-button:hover,
.pattern-share-button:focus-visible {
    transform: translateY(-1px);
    border-color: #8da2d2;
    box-shadow: 0 5px 13px rgba(40, 60, 96, 0.2);
}

.pattern-share-button:focus-visible {
    outline: 3px solid #8cb5ff;
    outline-offset: 2px;
}

.pattern-share-button__icon {
    width: 20px;
    height: 20px;
    display: block;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.pattern-share-button--linkedin .pattern-share-button__icon {
    width: 100%;
    height: 100%;
}

.pattern-share-button.is-copy-success {
    border-color: #2f8e63;
    background: linear-gradient(180deg, #f4fcf7, #e2f5ea);
    box-shadow: 0 4px 13px rgba(38, 130, 90, 0.22);
}

.pattern-share-button.is-copy-error {
    border-color: #c45454;
    background: linear-gradient(180deg, #fff8f8, #ffefef);
    box-shadow: 0 4px 13px rgba(154, 52, 52, 0.18);
}

.pattern-share-button--copy.is-copy-success .pattern-share-button__icon {
    transform: scale(1.08);
}

.pattern-share-button--copy.is-copy-error {
    animation: copy-error-shake 280ms ease;
}

@keyframes copy-error-shake {
    0%, 100% {
        transform: translateX(0);
    }
    25% {
        transform: translateX(-1px);
    }
    50% {
        transform: translateX(1px);
    }
    75% {
        transform: translateX(-1px);
    }
}

@media (prefers-reduced-motion: reduce) {
    .pattern-share-button,
    .pattern-share-button__icon {
        transition: none;
    }

    .pattern-share-button--copy.is-copy-success,
    .pattern-share-button--copy.is-copy-error {
        animation: none;
    }
}

.pattern-image {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: contain;
    border-radius: 10px;
    background: #fafbfd;
}

.pattern-image-wrap {
    width: 100%;
    max-width: 560px;
    aspect-ratio: 2339 / 1169;
    border-radius: 10px;
    overflow: hidden;
    background: #fafbfd;
    margin: 0 auto;
}

.pattern-image-fallback {
    display: inline-block;
    margin-top: 0.5rem;
    color: #9099a8;
    font-size: 0.9rem;
    font-family: "BIZ UDPGothic", sans-serif;
}

.pattern-flow {
    display: grid;
    gap: 0;
}

.pattern-flow__block {
    background: #fff;
    border-radius: 0;
    padding: 0;
    margin: 0;
}

.pattern-flow__strong {
    margin: 0;
    font-weight: 700;
    font-family: "BIZ UDPGothic", sans-serif;
    line-height: 1.8;
    color: var(--text);
}

.pattern-flow__text {
    margin: 0;
    line-height: 1.8;
}

.pattern-flow__block .pattern-flow__text {
    margin-top: 0.5rem;
    font-size: 0.95rem;
}

.pattern-flow__arrow {
    margin: 10px;
    padding: 0.35rem 0;
    text-align: center;
    color: #3e4f8b;
    font-family: "BIZ UDPGothic", sans-serif;
    font-weight: 700;
    font-size: 0.9rem;
    letter-spacing: 0.04em;
}

.pattern-section {
    border-top: none;
    padding-top: 0;
    margin:0 10px;
}

.pattern-section h4 {
    margin: 0 0 0.55rem;
    padding: 0;
    display: block;
    border: 0;
    font-size: 0.92rem;
    font-family: "BIZ UDPGothic", sans-serif;
    font-weight: 700;
    letter-spacing: 0.03em;
}

.pattern-related {
    margin: 0;
    padding-left: 0;
    list-style: none;
    line-height: 1.8;
}

.pattern-related li {
    padding: 0rem 0.85rem;
    font-size: 0.95rem;
    color: #3a3f4d;
}

.pattern-related li:last-child {
    margin-bottom: 0;
}

/* ── Quote section (blockquote style) ── */
.pattern-quotes-section {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin: 0.25rem 0 0.5rem;
}

.pattern-quote-card {
    position: relative;
    margin: 0;
    padding: 1rem 1.25rem 0.85rem 1.5rem;
    background: linear-gradient(135deg, #f8f9fc 0%, #f0f2f8 100%);
    border-left: 3px solid #8b9ad8;
    border-radius: 0 8px 8px 0;
    font-style: normal;
}

.pattern-quote-card::before {
    content: "\201C";
    position: absolute;
    top: -0.15rem;
    left: 0.55rem;
    font-size: 2.4rem;
    line-height: 1;
    color: #b0bae0;
    font-family: Georgia, "Times New Roman", serif;
    pointer-events: none;
}

.pattern-quote-card__text {
    margin: 0;
    padding-left: 1rem;
    line-height: 1.8;
    font-size: 0.93rem;
    color: #000000;
}

.pattern-quote-card__cite {
    display: block;
    margin-top: 0.45rem;
    padding-left: 1rem;
    font-style: normal;
    font-size: 0.82rem;
    color: #7a829a;
    font-family: "BIZ UDPGothic", sans-serif;
    letter-spacing: 0.02em;
}

.pattern-related__link {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.pattern-related__link:hover,
.pattern-related__link:focus-visible {
    color: #189cc7;
}

.pattern-category-section,
.pattern-group-accordion,
.pattern-card {
    scroll-margin-top: var(--patterns-scroll-target-offset);
}

.empty-message {
    margin: 0;
    padding: 0.8rem;
    border-radius: 8px;
    background: #f5f6f8;
    color: #4d5263;
}


/* ══════════════════════════════════════
   Category colour themes
   ══════════════════════════════════════
   Design principle: colour is used as a
   quiet identification marker on category
   headings, with a subtle sticky background
   tint for readability while following.
   ══════════════════════════════════════ */

.theme-shine {
    --cat-accent: #c9a227;
    --cat-sticky-bg: rgba(253, 251, 241, 0.97);
}

.theme-cope {
    --cat-accent: #d17490;
    --cat-sticky-bg: rgba(254, 247, 250, 0.97);
}

.theme-coexist {
    --cat-accent: #5aadcc;
    --cat-sticky-bg: rgba(244, 251, 254, 0.97);
}

/* Category heading */
[class*="theme-"] .pattern-category-heading {
    border-left-color: var(--cat-accent);
}

.notice-modal[hidden] {
    display: none;
}

.notice-modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
}

.notice-modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(10, 11, 18, 0.6);
}

.notice-modal__content {
    position: relative;
    width: min(760px, 92%);
    max-height: min(85vh, 900px);
    overflow: auto;
    margin: 6vh auto 0;
    background: #fff;
    border-radius: 12px;
    border: 1px solid #cfd3df;
    padding: 1rem;
    text-align: center;
}

.notice-modal__content h2 {
    margin: 0 0 0.8rem;
}

.notice-modal__content p {
    line-height: 1.7;
}

#noticeModalDescription {
    text-align: left;
    margin: 0.3rem 0.8rem;
}

.notice-modal__content button {
    margin-top: 0.4rem;
    min-height: 44px;
    border: 0;
    border-radius: 8px;
    background: var(--accent);
    color: #fff;
    font-family: "BIZ UDPGothic", sans-serif;
    font-weight: 700;
    cursor: pointer;
    padding: 0.55rem 1rem;
}

.noscript-message {
    margin: 1rem auto;
}

/* footer.html classes fallback (without MDB/Bootstrap) */
#footer {
    background: #1f2128;
    color: #fff;
    text-align: center;
}

#footer .container {
    width: min(1120px, 92%);
    margin: 0 auto;
}

#footer .p-4 {
    padding: 1rem;
}

#footer .p-3 {
    padding: 0.75rem;
}

#footer .mb-4 {
    margin-bottom: 1rem;
}

#footer .mb-3 {
    margin-bottom: 0.75rem;
}

#footer .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    min-height: 40px;
    border-radius: 50%;
    color: #fff;
    text-decoration: none;
}

#footer .m-1 {
    margin: 0.25rem;
}

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

#footer .text-uppercase {
    text-transform: uppercase;
}

#footer .small {
    font-size: 0.9rem;
}

#footer .list-unstyled {
    list-style: none;
    padding: 0;
    margin: 0;
}

#footer .d-inline-block {
    display: inline-block;
}

#footer .py-1 {
    padding-top: 0.25rem;
    padding-bottom: 0.25rem;
}

#footer .py-2 {
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

#footer .row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

@media (prefers-reduced-motion: reduce) {
    .pattern-category-heading,
    .pattern-group-summary,
    .pattern-card[open] > summary {
        transition: none;
    }
}

@media (min-width: 1114px) {
    .patterns-navbar__inner {
        gap: 1rem;
    }
    .patterns-nav-link {
        width: auto;
        min-height: 36px;
        padding: 0.4rem 0.55rem;
        font-size: 0.89rem;
    }

    .patterns-nav-toggle {
        display: none;
    }

    .patterns-nav-menu {
        margin-left: auto;
        display: block;
        width: auto;
    }

    .patterns-nav-list {
        flex-direction: row;
        flex-wrap: wrap;
        align-items: center;
        justify-content: flex-end;
        gap: 0.2rem;
        padding: 0;
    }

    .patterns-nav-item--dropdown {
        position: relative;
    }

    .patterns-dropdown {
        position: absolute;
        top: calc(100% + 0.35rem);
        left: 0;
        min-width: 252px;
        border: 1px solid rgba(255, 255, 255, 0.2);
        background: #1c2445;
        box-shadow: 0 10px 24px rgba(8, 10, 24, 0.38);
        z-index: 80;
    }

    .patterns-nav-item--social {
        padding: 0 0 0 0.25rem;
        align-items: center;
    }
    #twitter, #youtube {
      position: static;
    }
}


@media (min-width: 900px) {
    .patterns-controls {
        grid-template-columns: minmax(0, 1fr) auto;
        align-items: end;
        gap: 1rem;
    }

    .pattern-body {
        grid-template-columns: 1fr;
    }

    #footer .row {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 640px) {

    .patterns-list-section{
        --patterns-sticky-top-category: 0.2rem;
        --patterns-sticky-top-group: 2.26rem;
        --patterns-sticky-top-pattern: 4.5rem;
        --patterns-follow-indent-group: 0.37rem;
        --patterns-follow-indent-pattern: 0rem;
        --patterns-scroll-target-offset: 6rem;
        padding: 1rem 0;
    }
    #patternTitle{
        padding: 0 1rem;
    }

    .patterns-brand__name {
        font-size: 0.9rem;
    }

    .pattern-name {
        font-size: 1.1rem;
    }

    .pattern-group-summary {
        padding: 0.66rem 0.8rem;
    }

    .pattern-group-body {
        padding: 0.6rem;
    }

    .pattern-card summary {
        padding: 0.9rem 0.9rem 2.2rem;
    }

    .pattern-summary-action {
        font-size: 0.68rem;
        bottom: 0.55rem;
        right: 0.65rem;
    }

    .pattern-summary-image-wrap {
        max-width: 260px;
    }

    .pattern-share-actions {
        column-gap: 0.4rem;
        row-gap: 0.32rem;
    }

    .pattern-share-prompt {
        font-size: 0.73rem;
    }

    .pattern-share-button {
        width: 42px;
        height: 42px;
    }
}

@media (max-width:400px){
    #pg-9 summary{
        font-size: 0.9rem;
        line-height: 1.12;
    }
    #pg-9 summary.is-sticky-following{
        font-size: 0.85rem;
    }
}