:root {
    --bg: #f5f7f8;
    --panel: #ffffff;
    --ink: #20262d;
    --header-text: #20262d;
    --muted: #66727f;
    --line: #dfe5ea;
    --accent: #256f73;
    --accent-dark: #1f5c60;
    --danger: #a83a32;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: var(--app-font);
    line-height: 1.5;
}

body.login-page {
    background: var(--login-bg);
    color: var(--login-text);
    font-family: var(--login-font);
}

.login-page label,
.login-page .auth-panel h1,
.login-page .auth-branding h1 {
    color: var(--login-text);
}

a {
    color: var(--accent);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

button,
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 38px;
    padding: 0 14px;
    border: 0;
    border-radius: 6px;
    background: var(--accent);
    color: #fff;
    font: inherit;
    cursor: pointer;
}

button:hover,
.button:hover {
    background: var(--accent-dark);
    text-decoration: none;
}

input,
select,
textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: #fff;
    color: var(--ink);
    font: inherit;
}

textarea {
    min-height: 220px;
    resize: vertical;
}

label {
    display: grid;
    gap: 6px;
    color: var(--muted);
    font-size: 14px;
}

.secret-field {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 42px;
    align-items: stretch;
}

.secret-field input {
    border-radius: 6px 0 0 6px;
}

.secret-toggle {
    min-height: 0;
    padding: 0;
    border-left: 1px solid var(--line);
    border-radius: 0 6px 6px 0;
    background: #fff;
    color: var(--muted);
}

.secret-toggle:hover {
    background: #f5f7f8;
    color: var(--ink);
}

.secret-toggle svg {
    width: 20px;
    height: 20px;
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 1.8;
}

.color-field {
    display: inline-flex;
    align-items: center;
    gap: 12px;
}

.color-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 14px 22px;
}

.color-field input[type="color"] {
    width: 42px;
    height: 42px;
    padding: 3px;
    cursor: pointer;
}

.app-shell {
    display: grid;
    min-height: 100vh;
    grid-template-columns: 250px 1fr;
    transition: grid-template-columns 0.18s ease;
}

.app-shell.nav-collapsed {
    grid-template-columns: 0 1fr;
}

.sidebar {
    border-right: 0;
    background: var(--nav-bg);
    color: #fff;
    padding: 20px;
    min-width: 0;
    overflow: hidden;
    transition: padding 0.18s ease;
}

.app-shell.nav-collapsed .sidebar {
    padding-left: 0;
    padding-right: 0;
}

.brand {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
    color: var(--nav-text);
    font-size: 18px;
    font-weight: 700;
    text-align: center;
}

.brand img {
    width: min(150px, 100%);
    max-height: 110px;
    object-fit: contain;
}

.side-nav {
    display: grid;
    gap: 6px;
}

.side-nav a {
    padding: 10px 12px;
    border-radius: 6px;
    color: var(--nav-text);
}

.side-nav a:hover {
    background: var(--nav-highlight);
    text-decoration: none;
}

.nav-group {
    display: grid;
    gap: 4px;
    margin-top: 8px;
}

.nav-group summary {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 12px 6px;
    border-radius: 6px;
    color: var(--nav-text);
    cursor: pointer;
    font-size: 12px;
    font-weight: 700;
    list-style: none;
    opacity: 0.72;
    text-transform: uppercase;
}

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

.nav-group summary:hover,
.nav-group summary:focus {
    background: var(--nav-highlight);
    color: var(--nav-text);
    outline: none;
    opacity: 1;
}

.nav-group-arrow {
    width: 0;
    height: 0;
    border-top: 4px solid transparent;
    border-bottom: 4px solid transparent;
    border-left: 5px solid currentColor;
    transform: rotate(90deg);
    transition: transform 0.15s ease;
}

.nav-group:not([open]) .nav-group-arrow {
    transform: rotate(0deg);
}

.side-nav .nav-group > a {
    display: block;
    margin-left: 24px;
    padding-left: 14px;
}

.main {
    min-width: 0;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    min-height: 54px;
    padding: 8px 28px;
    border-bottom: 1px solid var(--line);
    background: var(--top-header-bg);
    color: var(--header-text);
}

.main:has(.custom-page-content) .topbar {
    border-bottom: 0;
}

.topbar-title {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
}

.nav-toggle {
    width: 34px;
    min-height: 34px;
    padding: 0;
    flex: 0 0 34px;
    border: 1px solid currentColor;
    background: transparent;
    color: var(--header-text);
}

.nav-toggle:hover {
    background: rgba(255, 255, 255, 0.12);
}

.nav-toggle svg {
    width: 27px;
    height: 27px;
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 1.6;
}

.nav-toggle-arrow {
    transition: transform 0.18s ease;
    transform-origin: center;
}

.app-shell.nav-collapsed .nav-toggle-arrow {
    transform: rotate(180deg);
}

.topbar-title .welcome-message {
    display: block;
    color: var(--header-text);
    font-size: 13px;
}

.topbar a {
    color: var(--header-text);
}

.top-actions {
    display: flex;
    align-items: center;
    gap: 14px;
}

.top-actions form {
    margin: 0;
}

.content {
    max-width: 1100px;
    padding: 28px;
}

.content.custom-page-content {
    max-width: none;
    padding: 0;
}

.panel,
.auth-panel {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--panel);
    padding: 22px;
}

.auth-layout {
    display: grid;
    gap: 18px;
    min-height: 100vh;
    place-items: center;
    padding: 20px;
}

.login-page .auth-layout {
    align-content: center;
}

.auth-branding {
    display: grid;
    justify-items: center;
    gap: 12px;
    width: min(460px, 100%);
    text-align: center;
}

.auth-branding img {
    max-width: min(220px, 80%);
    max-height: 150px;
    object-fit: contain;
}

.auth-branding h1 {
    margin: 0;
    color: var(--ink);
    font-size: 28px;
    line-height: 1.2;
}

.auth-panel {
    width: min(460px, 100%);
}

body.login-page .auth-panel {
    background-color: var(--login-panel);
}

.login-actions {
    display: grid;
    justify-items: center;
    gap: 12px;
}

.login-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px 14px;
    text-align: center;
}

.form-grid {
    display: grid;
    gap: 16px;
}

.actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
}

.inline-form {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
}

.inline-form input[type="file"] {
    width: auto;
}

.user-toolbar .inline-form {
    margin: 0;
}

.compact-form {
    display: grid;
    align-items: end;
    gap: 12px;
    grid-template-columns: 120px minmax(180px, 1fr) 120px auto;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: #fbfcfd;
}

.compact-form h3 {
    grid-column: 1 / -1;
    margin: 0;
}

.compact-form .form-row-wide,
.compact-form .actions {
    grid-column: 1 / -1;
}

.check-grid {
    display: grid;
    gap: 10px;
    margin: 0;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 6px;
}

.check-grid legend {
    padding: 0 6px;
    color: var(--muted);
    font-size: 14px;
    font-weight: 700;
}

.shortcode-list {
    display: grid;
    gap: 8px;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: #fbfcfd;
    color: var(--muted);
    font-size: 14px;
}

.shortcode-list div {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.shortcode-list code {
    padding: 4px 7px;
    border: 1px solid var(--line);
    border-radius: 4px;
    background: #fff;
    color: var(--ink);
    font-size: 13px;
}

.admin-list {
    display: grid;
    gap: 12px;
}

.admin-list-row {
    display: grid;
    align-items: end;
    gap: 12px;
    grid-template-columns: 140px minmax(180px, 1fr) 120px auto;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: #fbfcfd;
}

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

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

th,
td {
    padding: 11px 10px;
    border-bottom: 1px solid var(--line);
    text-align: left;
    vertical-align: top;
}

th {
    color: var(--muted);
    font-size: 13px;
    font-weight: 700;
}

.row-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.row-actions form {
    margin: 0;
}

.link-button {
    display: inline;
    min-height: 0;
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--accent);
}

.link-button:hover {
    background: transparent;
    text-decoration: underline;
}

.notice {
    margin-bottom: 16px;
    padding: 12px 14px;
    border-radius: 6px;
    background: #e8f3ef;
    color: #1f5c46;
}

.error {
    margin-bottom: 16px;
    padding: 12px 14px;
    border-radius: 6px;
    background: #f9e7e4;
    color: var(--danger);
}

.split {
    display: grid;
    gap: 20px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.admin-panel {
    display: grid;
    gap: 20px;
}

.admin-head,
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
}

.admin-head h1,
.section-header h2 {
    margin: 0;
}

.admin-head p,
.section-header p {
    margin: 4px 0 0;
    color: var(--muted);
}

.section-header form {
    margin: 0;
}

.tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    border-bottom: 1px solid var(--line);
}

.tabs a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    border: 1px solid transparent;
    border-bottom: 0;
    border-radius: 6px 6px 0 0;
    color: var(--muted);
    font-weight: 700;
}

.tabs a:hover {
    background: #eef4f4;
    text-decoration: none;
}

.tabs a.active {
    margin-bottom: -1px;
    border-color: var(--line);
    background: #fff;
    color: var(--accent);
}

.tabs span {
    min-width: 24px;
    padding: 2px 7px;
    border-radius: 999px;
    background: #edf1f3;
    color: var(--muted);
    font-size: 12px;
    text-align: center;
}

.tab-section {
    display: grid;
    gap: 16px;
}

.payload-view summary {
    color: var(--accent);
    cursor: pointer;
    font-weight: 700;
}

.payload-view pre {
    max-width: 520px;
    max-height: 220px;
    overflow: auto;
    padding: 10px;
    border-radius: 6px;
    background: #f5f7f8;
    color: var(--ink);
    white-space: pre-wrap;
    word-break: break-word;
}

.panel iframe {
    display: block;
    width: 100%;
    max-width: 100%;
}

.content:has(iframe) {
    max-width: none;
}

.panel:has(iframe) {
    padding: 16px;
}

.panel:has(iframe) h1 {
    margin-top: 0;
}

@media (max-width: 820px) {
    .app-shell {
        grid-template-columns: 1fr;
    }

    .app-shell.nav-collapsed {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: static;
    }

    .app-shell.nav-collapsed .sidebar {
        display: none;
    }

    .topbar,
    .top-actions {
        align-items: flex-start;
        flex-direction: column;
    }

    .content {
        padding: 18px;
    }

    .content.custom-page-content {
        padding: 0;
    }

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

    .admin-head,
    .section-header {
        align-items: flex-start;
        flex-direction: column;
    }

    .admin-list-row {
        grid-template-columns: 1fr;
    }

    .compact-form {
        grid-template-columns: 1fr;
    }
}