/* /etc/tools - visual system refresh */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --font: 'Space Grotesk', 'JetBrains Mono', monospace;
    --font-mono: 'JetBrains Mono', monospace;

    --bg: #0b0d0f;
    --bg2: #131619;
    --bg3: #1a1e22;
    --fg: #eef1f4;
    --fg2: #c4cbd2;
    --fg3: #8f98a1;
    --border: rgba(208, 216, 224, 0.18);
    --border-strong: rgba(208, 216, 224, 0.32);
    --accent: #8a939c;
    --accent-2: #b0b8bf;
    --ring: rgba(138, 147, 156, 0.3);
    --color-ok: #58cc8b;
    --color-err: #ef6b63;
    --radius: 10px;
    --radius-sm: 7px;
    --shadow: 0 20px 52px rgba(4, 9, 12, 0.45);
}

[data-theme="light"] {
    --bg: #f4f6f8;
    --bg2: #ffffff;
    --bg3: #eef1f4;
    --fg: #0f1a21;
    --fg2: #2f3e4a;
    --fg3: #5d6e7c;
    --border: rgba(40, 54, 66, 0.18);
    --border-strong: rgba(40, 54, 66, 0.3);
    --accent: #4d5964;
    --accent-2: #707d88;
    --ring: rgba(77, 89, 100, 0.28);
    --color-ok: #1e8f59;
    --color-err: #c2493f;
    --shadow: 0 14px 32px rgba(23, 59, 76, 0.14);
}

[data-theme="dark"] {
    --bg: #0b0d0f;
    --bg2: #131619;
    --bg3: #1a1e22;
    --fg: #eef1f4;
    --fg2: #c4cbd2;
    --fg3: #8f98a1;
    --border: rgba(208, 216, 224, 0.18);
    --border-strong: rgba(208, 216, 224, 0.32);
    --accent: #8a939c;
    --accent-2: #b0b8bf;
    --ring: rgba(138, 147, 156, 0.3);
    --color-ok: #58cc8b;
    --color-err: #ef6b63;
    --shadow: 0 20px 52px rgba(4, 9, 12, 0.45);
}

html {
    font-family: var(--font);
    font-size: 14px;
    line-height: 1.65;
    background: var(--bg);
    color: var(--fg);
    text-rendering: geometricPrecision;
    -webkit-font-smoothing: antialiased;
}

body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    color: inherit;
}

/* -- header */

header {
    padding: 0 34px;
    height: 62px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 20;
    background: color-mix(in srgb, var(--bg) 84%, transparent);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid color-mix(in srgb, var(--border) 75%, transparent);
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    letter-spacing: 0.01em;
    color: var(--fg2);
    transition: color 0.2s ease;
}

.logo:hover {
    color: var(--fg);
}

.cursor {
    display: inline-block;
    width: 8px;
    height: 15px;
    background: var(--accent);
    margin-left: 4px;
    border-radius: 2px;
    animation: blink 1.2s step-end infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.12; }
}

.header-right {
    display: flex;
    align-items: center;
    gap: 10px;
}

.tool-trigger {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    background: color-mix(in srgb, var(--bg2) 90%, var(--bg3));
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--fg2);
    font: inherit;
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: color 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}

.tool-trigger:hover {
    color: var(--fg);
    border-color: var(--border-strong);
    transform: translateY(-1px);
}

.tool-trigger .scope {
    color: var(--fg3);
}

.tool-trigger kbd {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--fg3);
    margin-left: 2px;
}

.theme-switch {
    font: inherit;
    font-size: 12px;
    font-weight: 600;
    color: var(--fg3);
    background: none;
    border: none;
    cursor: pointer;
    transition: color 0.18s ease;
}

.theme-switch:hover {
    color: var(--accent);
}

/* -- palette */

.palette-overlay {
    position: fixed;
    inset: 0;
    background: color-mix(in srgb, var(--bg) 78%, black 22%);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    z-index: 100;
    display: none;
    align-items: flex-start;
    justify-content: center;
    padding-top: 84px;
}

.palette-overlay.open {
    display: flex;
}

.palette {
    width: 100%;
    max-width: 530px;
    background: color-mix(in srgb, var(--bg2) 90%, var(--bg3));
    border: 1px solid var(--border-strong);
    border-radius: 12px;
    box-shadow: var(--shadow);
    overflow: hidden;
    transform-origin: top center;
    animation: paletteIn 0.2s ease;
}

@keyframes paletteIn {
    from { opacity: 0; transform: translateY(-6px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.palette-input {
    width: 100%;
    padding: 15px 16px;
    background: none;
    border: none;
    border-bottom: 1px solid var(--border);
    color: var(--fg);
    font-family: var(--font-mono);
    font-size: 14px;
    outline: none;
}

.palette-input::placeholder {
    color: var(--fg3);
}

.palette-list {
    max-height: 340px;
    overflow-y: auto;
}

.palette-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 11px 16px;
    cursor: pointer;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
    font: inherit;
    color: var(--fg);
    transition: background 0.16s ease;
}

.palette-item:hover {
    background: color-mix(in srgb, var(--accent) 12%, transparent);
}

.palette-item.selected {
    background: color-mix(in srgb, var(--accent) 18%, transparent);
}

.palette-item .name {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
}

.palette-item .scope {
    color: var(--fg3);
}

.palette-item .desc {
    font-size: 12px;
    color: var(--fg2);
}

.palette-empty {
    padding: 24px 16px;
    color: var(--fg2);
    text-align: center;
}

/* -- main */

main {
    flex: 1;
    padding: 50px 30px 56px;
    max-width: 860px;
    margin: 0 auto;
    width: 100%;
}

.tool-title {
    font-size: 12px;
    font-weight: 600;
    color: var(--fg3);
    margin-bottom: 5px;
    text-transform: uppercase;
    letter-spacing: 0.09em;
}

.tool-desc {
    font-size: 14px;
    color: var(--fg2);
    margin-bottom: 18px;
}

.tz-select {
    margin-left: auto;
    background: color-mix(in srgb, var(--bg2) 88%, var(--bg3));
    color: var(--fg2);
    border: 1px solid transparent;
    border-left: 1px solid var(--border);
    padding: 8px 12px;
    font: inherit;
    font-size: 12px;
    cursor: pointer;
    outline: none;
    border-radius: var(--radius-sm);
    transition: color 0.15s ease, border-color 0.15s ease;
}

.tz-select:hover {
    color: var(--fg);
    border-color: var(--border-strong);
}

/* -- tool container */

.tool {
    background: color-mix(in srgb, var(--bg2) 94%, var(--bg3));
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.tool-tabs {
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--border);
    padding: 0 16px;
    gap: 4px;
    background: color-mix(in srgb, var(--bg3) 45%, transparent);
}

.tool-tab {
    padding: 12px 14px;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    font: inherit;
    font-size: 12px;
    font-weight: 600;
    color: var(--fg3);
    cursor: pointer;
    transition: color 0.15s ease, border-color 0.15s ease;
}

.tool-tab:hover {
    color: var(--fg2);
}

.tool-tab.active {
    color: var(--fg);
    border-bottom-color: var(--accent);
}

.tool-body {
    padding: 22px;
}

.panel {
    display: none;
}

.panel.active {
    display: block;
    animation: panelFade 0.22s ease;
}

@keyframes panelFade {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}

/* -- form elements */

label {
    display: block;
    font-size: 11px;
    font-weight: 600;
    color: var(--fg3);
    margin-bottom: 7px;
    text-transform: uppercase;
    letter-spacing: 0.07em;
}

textarea,
input,
select,
button {
    font-family: var(--font-mono);
}

textarea {
    width: 100%;
    background: color-mix(in srgb, var(--bg) 84%, transparent);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--fg);
    padding: 10px 12px;
    resize: vertical;
    min-height: 80px;
    transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

textarea:focus,
input:focus,
select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--ring);
}

textarea::placeholder,
input::placeholder {
    color: color-mix(in srgb, var(--fg3) 85%, transparent);
}

.field {
    margin-bottom: 16px;
}

/* Segmented controls */
.seg {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin-bottom: 16px;
}

.seg label {
    display: block;
    margin: 0;
    text-transform: none;
    letter-spacing: normal;
    font-size: 12px;
}

.seg input {
    display: none;
}

.seg span {
    display: block;
    padding: 6px 11px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--fg2);
    cursor: pointer;
    transition: color 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}

.seg span:hover {
    color: var(--fg);
    border-color: var(--border-strong);
}

.seg input:checked + span {
    background: color-mix(in srgb, var(--accent) 22%, transparent);
    border-color: color-mix(in srgb, var(--accent) 62%, transparent);
    color: var(--fg);
}

.seg-label {
    width: 100%;
    font-size: 11px;
    font-weight: 600;
    color: var(--fg3);
    margin-bottom: 7px;
    text-transform: uppercase;
    letter-spacing: 0.07em;
}

/* -- buttons */

.actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.btn {
    padding: 8px 16px;
    font: inherit;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: color-mix(in srgb, var(--bg3) 50%, transparent);
    color: var(--fg2);
    transition: color 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

.btn:hover {
    color: var(--fg);
    border-color: var(--border-strong);
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
}

.btn-primary:hover {
    background: color-mix(in srgb, var(--accent) 90%, black 10%);
    border-color: color-mix(in srgb, var(--accent) 90%, black 10%);
    color: white;
}

/* -- output */

.output-wrap {
    position: relative;
}

.output {
    background: color-mix(in srgb, var(--bg) 82%, transparent);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
    min-height: 52px;
    color: var(--fg);
    word-break: break-all;
    line-height: 1.72;
    font-family: var(--font-mono);
}

.output:empty::before {
    content: 'output';
    color: var(--fg3);
}

.output-copy {
    position: absolute;
    top: 8px;
    right: 8px;
    padding: 4px 9px;
    font: inherit;
    font-size: 10px;
    font-weight: 600;
    background: color-mix(in srgb, var(--bg2) 92%, var(--bg3));
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--fg3);
    cursor: pointer;
    transition: color 0.15s ease, border-color 0.15s ease;
}

.output-copy:hover {
    color: var(--fg);
    border-color: var(--border-strong);
}

.output-meta {
    margin-top: 8px;
    font-size: 12px;
    color: var(--fg2);
}

/* -- references */

.ref {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-top: 24px;
    overflow: hidden;
    background: color-mix(in srgb, var(--bg2) 92%, var(--bg3));
}

.ref summary {
    padding: 12px 16px;
    cursor: pointer;
    color: var(--fg2);
    font-size: 12px;
    font-weight: 600;
    list-style: none;
    transition: color 0.15s ease;
}

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

.ref summary::before {
    content: '+ ';
    color: var(--accent);
}

.ref[open] summary::before {
    content: '− ';
}

.ref summary:hover {
    color: var(--fg);
}

.ref[open] summary {
    border-bottom: 1px solid var(--border);
}

.ref-body {
    padding: 16px;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
}

th,
td {
    text-align: left;
    padding: 8px 12px;
    border-bottom: 1px solid var(--border);
}

th {
    color: var(--fg2);
    font-weight: 700;
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.07em;
}

td {
    color: var(--fg);
}

tr:last-child td {
    border-bottom: none;
}

code {
    background: color-mix(in srgb, var(--fg) 8%, var(--bg2));
    border-radius: 4px;
    padding: 1px 5px;
    font-family: var(--font-mono);
    font-size: 12px;
}

.ref-link {
    display: inline-block;
    margin-top: 12px;
    font-size: 12px;
    color: var(--fg3);
    transition: color 0.15s ease;
}

.ref-link:hover {
    color: var(--accent);
}

/* -- footer */

footer {
    padding: 20px 32px 28px;
    font-size: 11px;
    color: var(--fg3);
    text-align: center;
}

footer a {
    color: var(--fg3);
    text-decoration: none;
    transition: color 0.15s ease;
}

footer a:hover {
    color: var(--accent);
}

/* -- toast */

.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(60px);
    background: color-mix(in srgb, var(--bg2) 90%, var(--bg3));
    color: var(--fg);
    border: 1px solid var(--border-strong);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    opacity: 0;
    transition: all 0.18s ease;
    pointer-events: none;
    box-shadow: var(--shadow);
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* -- accessibility */

:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* -- responsive */

@media (max-width: 740px) {
    header {
        height: 58px;
        padding: 0 18px;
    }

    .logo {
        font-size: 14px;
    }

    main {
        padding: 24px 14px 36px;
    }

    .tool-body {
        padding: 16px;
    }

    .tool-tabs {
        padding: 0 10px;
    }

    .tool-tab {
        padding: 10px 9px;
        font-size: 11px;
    }

    .tool-trigger kbd {
        display: none;
    }

    .palette {
        margin: 0 12px;
    }

    .palette-overlay {
        padding-top: 64px;
    }
}