/* Shared styling for Petoca legal pages */
:root {
    --bg: #f5f6f7;
    --card: #ffffff;
    --text: #1f2933;
    --muted: #5f6b74;
    --accent: #2d6a4f;
    --border: #e2e6ea;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    --card-gradient-start: rgba(255, 255, 255, 0.92);
    --card-gradient-end: rgba(255, 255, 255, 0.98);
    --hover-bg: rgba(45, 106, 79, 0.08);
    --hover-bg-strong: rgba(45, 106, 79, 0.2);
    --hover-ring: rgba(45, 106, 79, 0.25);
    --focus-ring: rgba(45, 106, 79, 0.45);
    --radius: 16px;
    color-scheme: light;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0f1418;
        --card: #1c252c;
        --text: #e7ecf0;
        --muted: #9aa7b3;
        --accent: #7cd1a9;
        --border: #28323b;
        --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
        --card-gradient-start: var(--card);
        --card-gradient-end: var(--card);
        --hover-bg: rgba(124, 209, 169, 0.1);
        --hover-bg-strong: rgba(124, 209, 169, 0.2);
        --hover-ring: rgba(124, 209, 169, 0.25);
        --focus-ring: rgba(124, 209, 169, 0.45);
        --radius: 16px;
        color-scheme: dark;
    }
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background: var(--bg);
    color: var(--text);
    font-family: "Segoe UI", "Helvetica Neue", Arial, "Noto Sans JP", "Hiragino Sans", "Yu Gothic", sans-serif;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    position: relative;
}

.page {
    max-width: 960px;
    margin: 0 auto;
    padding: 32px 20px 48px;
    position: relative;
    z-index: 1;
}

.page::before,
.page::after {
    content: "";
    position: fixed;
    width: 260px;
    height: 260px;
    pointer-events: none;
    z-index: 0;
    opacity: 0.14;
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
}

.page::before {
    left: 20px;
    top: 220px;
    width: 150px;
    height: 150px;
    opacity: 0.06;
    background-image: url("./cat.jpg");
}

.page::after {
    right: -120px;
    bottom: -40px;
    width: 300px;
    height: 300px;
    opacity: 0.09;
    transform: rotate(2deg);
    background-image: url("./dog.jpg");
}

@media (max-width: 900px) {
    .page::before,
    .page::after {
        display: none;
    }
}

header {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 18px;
    color: var(--muted);
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    letter-spacing: 0.2px;
}

.brand img {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    object-fit: cover;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.06);
    flex-shrink: 0;
}

.brand .title {
    color: var(--text);
    font-size: 24px;
}

.brand .subtitle {
    font-size: 14px;
    color: var(--muted);
}

nav {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 10px 14px;
    margin-bottom: 18px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
}

nav ul {
    list-style: none;
    display: flex;
    flex-wrap: nowrap;
    gap: 8px;
    margin: 0;
    padding: 0 2px 2px;
    white-space: nowrap;
}

nav a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    border-radius: 10px;
    color: var(--muted);
    text-decoration: none;
    font-weight: 600;
    transition: background 0.2s ease, color 0.2s ease;
}

nav a:hover {
    background: var(--hover-bg);
    color: var(--text);
}

nav a.active {
    background: var(--hover-bg-strong);
    color: var(--accent);
    box-shadow: inset 0 0 0 1px var(--hover-ring);
}

nav a:focus-visible,
.info-card:focus-visible {
    outline: 2px solid var(--focus-ring);
    outline-offset: 2px;
}

.info-card:focus-visible {
    transform: translateY(-2px);
    box-shadow: 0 14px 34px rgba(0, 0, 0, 0.08);
}

main {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: calc(var(--radius) + 2px);
    box-shadow: var(--shadow);
    padding: 30px 24px 34px;
}

main h1 {
    margin: 0 0 12px;
    font-size: clamp(24px, 4vw, 30px);
    letter-spacing: 0.2px;
}

main h2 {
    margin: 28px 0 14px;
    font-size: clamp(18px, 3vw, 22px);
    color: var(--text);
    border-left: 3px solid var(--accent);
    padding-left: 12px;
}

main p {
    margin: 0 0 18px;
    color: var(--text);
}

main ul {
    padding-left: 20px;
    margin: 0 0 18px;
    display: grid;
    gap: 12px;
}

main li {
    color: var(--text);
}

.lead {
    color: var(--muted);
    margin-top: -4px;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-top: 16px;
}

.info-card {
    border: 1px solid var(--border);
    border-top: 3px solid var(--accent);
    border-radius: var(--radius);
    padding: 16px;
    background: linear-gradient(180deg, var(--card-gradient-start), var(--card-gradient-end));
    box-shadow: var(--shadow);
    text-decoration: none;
    color: var(--text);
    transition: transform 0.1s ease, box-shadow 0.2s ease;
}

.card-grid .info-card:nth-child(1) {
    border-top-color: #2d6a4f;
}

.card-grid .info-card:nth-child(2) {
    border-top-color: #2563eb;
}

.card-grid .info-card:nth-child(3) {
    border-top-color: #d97706;
}

.info-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 38px rgba(0, 0, 0, 0.1);
}

.info-card h3 {
    margin: 0 0 6px;
    font-size: 18px;
}

.info-card p {
    margin: 0;
    color: var(--muted);
}


.copyright {
    margin-top: 10px;
    font-size: 12px;
    color: var(--muted);
    text-align: center;
}

footer {
    margin-top: 18px;
    color: var(--muted);
    font-size: 13px;
    text-align: center;
}

footer p {
    margin: 8px 0 0;
}

.meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
    justify-content: center;
    margin-top: 6px;
}

.meta span {
    display: inline-flex;
    gap: 6px;
    align-items: center;
}

.back-to-top {
    display: block;
    margin: 24px auto 0;
    padding: 10px 20px;
    background: var(--bg);
    border: 1px solid var(--accent);
    border-radius: 10px;
    color: var(--accent);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
    cursor: pointer;
    width: fit-content;
}

.back-to-top:hover {
    background: var(--hover-bg-strong);
    color: var(--accent);
    border-color: var(--accent);
}

.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    background: var(--accent);
    color: #fff;
    padding: 8px 16px;
    border-radius: 0 0 8px 8px;
    font-weight: 600;
    z-index: 100;
}

.skip-link:focus {
    left: 50%;
    transform: translateX(-50%);
}

main a:not(.info-card):not(.back-to-top) {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 2px;
}

main a:not(.info-card):not(.back-to-top):hover {
    opacity: 0.8;
}

@media (max-width: 640px) {
    .page {
        padding: 22px 16px 36px;
    }

    nav {
        padding: 8px 10px;
    }

    nav ul {
        flex-wrap: wrap;
        white-space: normal;
        gap: 4px;
    }

    nav a {
        padding: 7px 10px;
        font-size: 13px;
    }

    main {
        padding: 24px 18px 26px;
    }

    main h2 {
        font-size: 17px;
    }
}