:root {
    --bg: #f3efe5;
    --surface: #fffefb;
    --surface-strong: #f3ecdf;
    --ink: #112028;
    --accent: #0a7c74;
    --accent-alt: #c14512;
    --ok: #166534;
    --warn: #b45309;
    --fail: #b91c1c;
    --line: #d7c8aa;
    --radius: 14px;
    --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
    --shadow-soft: 0 6px 16px rgba(15, 23, 42, 0.07);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    color: var(--ink);
    background:
        radial-gradient(1200px 300px at 15% -10%, #dff4f0 18%, transparent 70%),
        radial-gradient(900px 300px at 85% -15%, #fde8dd 16%, transparent 65%),
        linear-gradient(180deg, #fcfaf5 0%, #f3efe5 80%),
        var(--bg);
    font: 16px/1.6 "IBM Plex Sans", "Segoe UI", sans-serif;
}

h1,
h2,
h3,
h4 {
    font-family: "Merriweather", Georgia, serif;
    line-height: 1.25;
    margin-top: 1.2em;
}

a {
    color: var(--accent);
    text-decoration-thickness: 2px;
    text-underline-offset: 3px;
}

.container {
    width: min(1120px, 92vw);
    margin-inline: auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 30;
    border-bottom: 1px solid var(--line);
    background: rgba(255, 254, 251, 0.92);
    backdrop-filter: blur(12px);
}

.header-inner {
    min-height: 72px;
    display: grid;
    grid-template-columns: 1fr auto auto;
    gap: 1rem;
    align-items: center;
}

.brand {
    font-family: "Merriweather", Georgia, serif;
    font-size: 1.1rem;
    color: var(--ink);
    text-decoration: none;
}

.brand-accent {
    color: var(--accent-alt);
    font-weight: 700;
}

.lang-nav,
.footer-grid ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: .8rem;
    flex-wrap: wrap;
}

.lang-nav a,
.footer-grid a {
    text-decoration: none;
    border: 1px solid transparent;
    border-radius: 999px;
    padding: .3rem .72rem;
}

.lang-nav a:hover,
.footer-grid a:hover {
    border-color: var(--line);
    background: #fff;
}

.main-menu {
    position: relative;
    border: 0;
    padding: 0;
    background: transparent;
}

.main-menu > summary {
    list-style: none;
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: .35rem .8rem;
    background: #fff;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    font-weight: 600;
}

.main-menu > summary::-webkit-details-marker {
    display: none;
}

.main-menu > summary.active,
.main-menu[open] > summary {
    border-color: var(--accent);
    background: #ecfbf8;
}

.main-menu-panel {
    position: absolute;
    right: 0;
    top: calc(100% + .35rem);
    min-width: 320px;
    max-width: min(92vw, 380px);
    border: 1px solid var(--line);
    border-radius: 12px;
    background: #fff;
    box-shadow: var(--shadow);
    padding: .55rem;
    display: grid;
    gap: .3rem;
    z-index: 60;
}

.main-menu-panel a {
    display: flex;
    align-items: center;
    border-radius: 10px;
    border: 1px solid transparent;
    text-decoration: none;
    padding: .4rem .55rem;
    color: var(--ink);
}

.main-menu-core-links {
    display: grid;
    gap: .25rem;
    margin-bottom: .25rem;
}

.main-menu-panel a:hover {
    border-color: var(--line);
    background: #fffef7;
}

.main-menu-panel a.active {
    border-color: var(--line);
    background: var(--surface-strong);
    font-weight: 600;
}

.menu-group-title {
    margin: .2rem .2rem 0;
    font-size: .78rem;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: #4f6474;
    font-weight: 700;
}

.menu-category-grid {
    display: grid;
    gap: .35rem;
}

.menu-category-item {
    position: relative;
}

.menu-category-link {
    font-weight: 600;
}

.menu-submenu {
    position: absolute;
    left: calc(100% + .4rem);
    top: -.1rem;
    min-width: min(92vw, 340px);
    border: 1px solid var(--line);
    border-radius: 12px;
    background: #fff;
    box-shadow: var(--shadow);
    padding: .45rem;
    display: none;
    gap: .25rem;
    z-index: 65;
}

.menu-category-item:hover > .menu-submenu,
.menu-category-item:focus-within > .menu-submenu {
    display: grid;
}

.menu-tool-link {
    font-weight: 500;
    line-height: 1.35;
}

.lang-switcher {
    position: relative;
    border: 0;
    padding: 0;
    background: transparent;
}

.lang-switcher > summary {
    list-style: none;
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: .35rem .7rem;
    background: #fff;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: .35rem;
}

.lang-switcher > summary::-webkit-details-marker {
    display: none;
}

.lang-switcher > summary:hover {
    border-color: #b9a987;
}

.lang-switcher[open] > summary {
    border-color: var(--accent);
    box-shadow: none;
}

.lang-switcher .lang-nav {
    position: absolute;
    right: 0;
    top: calc(100% + .35rem);
    min-width: 180px;
    padding: .45rem;
    border-radius: 10px;
    border: 1px solid var(--line);
    background: #fff;
    box-shadow: var(--shadow);
    z-index: 50;
    display: grid;
    gap: .3rem;
}

.lang-switcher .lang-nav a {
    display: flex;
    align-items: center;
    gap: .45rem;
    padding: .4rem .55rem;
}

.flag {
    line-height: 1;
    font-size: 1rem;
}

.lang-nav a.active {
    border-color: var(--line);
    background: var(--surface-strong);
}

.admin-header-controls {
    display: flex;
    align-items: center;
    gap: .6rem;
    flex-wrap: wrap;
}

.page-content {
    padding-block: 1.5rem 3rem;
}

.split-layout {
    display: grid;
    gap: 1rem;
    grid-template-columns: 1.7fr 1fr;
    margin-bottom: 1.1rem;
}

.split-layout-home {
    grid-template-columns: 1.6fr 1fr;
}

.content-body,
.panel,
.card,
.summary-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.content-body,
.panel {
    padding: 1.25rem clamp(1rem, 2vw, 1.5rem);
    margin-bottom: 1.1rem;
}

.hero-content h1 {
    margin-top: .25rem;
    margin-bottom: .75rem;
}

.hero-content > :first-child {
    margin-top: 0;
}

.hero-content > :last-child {
    margin-bottom: 0;
}

.quickstart-panel {
    background: linear-gradient(180deg, #fff 0%, #f9f3e8 100%);
}

.quickstart-panel h2 {
    margin-top: 0;
}

.checklist {
    margin: .4rem 0 0;
    padding-left: 1.25rem;
    display: grid;
    gap: .45rem;
}

.card-grid h2 {
    margin-top: .4rem;
}

.grid {
    display: grid;
    gap: .85rem;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.card,
.summary-card {
    padding: .9rem 1rem;
}

.category-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.category-card {
    position: relative;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-soft);
}

.category-card h3 {
    margin-top: .15rem;
}

.card-meta {
    color: #3b4f5e;
    font-weight: 600;
    margin: .4rem 0;
}

.tool-preview-list {
    margin: .35rem 0 .6rem;
    padding-left: 1rem;
    display: grid;
    gap: .2rem;
}

.faq-panel h2 {
    margin-top: 0;
}

.faq-grid {
    display: grid;
    gap: .55rem;
}

.faq-item {
    border: 1px solid var(--line);
    border-radius: 10px;
    background: #fff;
    padding: .55rem .7rem;
}

.faq-item > summary {
    font-weight: 600;
    list-style: none;
}

.faq-item > summary::-webkit-details-marker {
    display: none;
}

.faq-answer {
    margin-top: .45rem;
    color: #243745;
}

.tool-form {
    display: grid;
    gap: .8rem;
}

.form-row {
    display: grid;
    gap: .3rem;
}

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

input,
select {
    width: 100%;
    border: 1px solid #c8bca7;
    border-radius: 8px;
    padding: .62rem .7rem;
    background: #fff;
}

.btn,
.copy-btn {
    border: 1px solid var(--accent);
    background: var(--accent);
    color: #fff;
    border-radius: 9px;
    padding: .58rem .95rem;
    cursor: pointer;
}

.copy-btn {
    margin-bottom: .6rem;
}

.tabs-nav {
    display: flex;
    gap: .5rem;
    flex-wrap: wrap;
    margin-bottom: .75rem;
}

.tabs-nav [role="tab"] {
    border: 1px solid var(--line);
    background: #fff;
    color: var(--ink);
    border-radius: 999px;
    padding: .4rem .7rem;
    cursor: pointer;
}

.tabs-nav [role="tab"][aria-selected="true"] {
    border-color: var(--accent);
    background: #ddf4f1;
}

[role="tabpanel"][hidden] {
    display: none;
}

.tooltip-wrap {
    position: relative;
    display: inline-flex;
    flex-direction: column;
    align-items: flex-start;
}

.tooltip-text {
    display: none;
    margin-top: .25rem;
    padding: .3rem .45rem;
    border-radius: 6px;
    border: 1px solid var(--line);
    background: #fff;
    color: var(--ink);
    font-size: .82rem;
    line-height: 1.3;
    max-width: 320px;
}

.tooltip-wrap:hover .tooltip-text,
.tooltip-wrap:focus-within .tooltip-text {
    display: inline-block;
}

main details:not(.lang-switcher):not(.main-menu) {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    padding: .6rem .7rem;
}

main details:not(.lang-switcher):not(.main-menu) > summary {
    cursor: pointer;
    color: #223645;
}

.alert {
    border-left: 4px solid var(--fail);
    background: #fef2f2;
    padding: .6rem .8rem;
    border-radius: 6px;
}

.notice {
    border-left: 4px solid var(--warn);
    background: #fffbeb;
    padding: .6rem .8rem;
    border-radius: 6px;
}

.badge {
    display: inline-block;
    padding: .22rem .55rem;
    border-radius: 999px;
    font-size: .86rem;
    font-weight: 700;
}

.badge-ok {
    color: #fff;
    background: var(--ok);
}

.badge-warn {
    color: #fff;
    background: var(--warn);
}

.badge-fail,
.badge-failed {
    color: #fff;
    background: var(--fail);
}

.summary-grid {
    display: grid;
    gap: .7rem;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    margin-bottom: .7rem;
}

pre {
    overflow-x: auto;
    background: #0f1f2b;
    color: #f5fafc;
    border-radius: 8px;
    padding: .75rem;
    font: .85rem/1.45 "IBM Plex Mono", Menlo, Consolas, monospace;
}

.site-footer {
    border-top: 1px solid var(--line);
    background: #e9decb;
    padding: 1.1rem 0;
}

.admin-table-wrap {
    overflow-x: auto;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
}

.admin-table th,
.admin-table td {
    text-align: left;
    border-bottom: 1px solid var(--line);
    padding: .58rem .5rem;
    vertical-align: top;
}

.admin-table th {
    background: #f8f3e9;
}

.admin-pagination {
    margin-top: .8rem;
}

.admin-login-panel {
    max-width: 560px;
    margin: 2rem auto;
}

.admin-login-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.admin-remember-row label {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
}

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

@media (max-width: 880px) {
    .header-inner {
        grid-template-columns: 1fr;
        padding: .7rem 0;
    }

    .lang-nav {
        gap: .4rem;
    }

    .main-menu-panel {
        left: 0;
        right: auto;
        min-width: min(92vw, 360px);
    }

    .menu-category-item {
        border: 1px solid var(--line);
        border-radius: 10px;
        padding: .22rem;
        background: #fffef9;
    }

    .menu-submenu {
        position: static;
        min-width: 0;
        border: 0;
        box-shadow: none;
        background: transparent;
        padding: .2rem .1rem .1rem .35rem;
        display: grid;
    }

    .split-layout,
    .split-layout-home {
        grid-template-columns: 1fr;
    }
}