:root
{
    --bg0: #1a1a1a;
    --bg1: #121212;
    --card: #2a2a2a;
    --card2: #252525;
    --border: #3a3a3a;
    --border2: #4a4a4a;

    --text: #d4d4d4;
    --muted: #999999;
    --muted2: #6e6e6e;

    --accent: #ffbb00;
    --glow: rgba(255, 187, 0, 0.08);

    --ok: #5cb85c;
    --warn: #ffbb00;
    --err: #d9534f;

    --radius: 0px;
    --shadow: 0 4px 16px rgba(0,0,0,0.4);
}

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

body
{
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg0);
    font-size: 13px;
}

.app
{
    max-width: 1200px;
    margin: 0 auto;
    padding: 6px 14px 20px 14px;
}

/* ---- Header ---- */

.header
{
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 4px;
}

.header-left
{
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.header-title
{
    font-size: 20px;
    font-weight: 650;
    letter-spacing: 0.2px;
    color: #ffffff;
}

.header-sub
{
    color: var(--muted);
    font-size: 12px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.logo
{
    height: 48px;
    margin-left: auto;
    display: block;
    filter: drop-shadow(0 10px 25px rgba(0,0,0,0.5));
    opacity: 0.95;
}

/* ---- Card ---- */

.card
{
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.section
{
    padding: 10px 12px 8px 12px;
}

.section-title
{
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: var(--muted);
    margin-bottom: 6px;
}

/* ---- Top bar ---- */

.topbar
{
    padding: 8px 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}

.topbar-status
{
    display: flex;
    align-items: center;
    gap: 14px;
}

.topbar-conn
{
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.status
{
    padding: 7px 12px;
    border-radius: 0;
    border: 1px solid var(--border2);
    background: #1e1e1e;
    font-weight: 600;
    font-size: 14px;
    letter-spacing: 0.2px;
}

.ok   { color: var(--ok); }
.warn { color: var(--warn); }

/* ---- Buttons ---- */

button
{
    padding: 6px 12px;
    background: #333333;
    color: var(--text);
    border: 1px solid var(--border2);
    border-radius: 0;
    cursor: pointer;
    font-size: 13px;
    font-family: inherit;
    letter-spacing: 0.2px;
    transition: transform 0.08s ease, background 0.15s ease, border-color 0.15s ease;
}

button:hover
{
    background: #3d3d3d;
    border-color: #5a5a5a;
}

button:active
{
    transform: translateY(1px);
    background: #444444;
}

button:disabled
{
    opacity: 0.35;
    cursor: not-allowed;
}

button.accent
{
    background: rgba(255,187,0,0.12);
    border-color: rgba(255,187,0,0.35);
    color: var(--accent);
}

button.accent:hover
{
    background: rgba(255,187,0,0.20);
    border-color: rgba(255,187,0,0.50);
}

button.danger
{
    color: var(--err);
    border-color: rgba(217,83,79,0.30);
}

button.danger:hover
{
    background: rgba(217,83,79,0.10);
}

/* ---- Progress bar ---- */

.progress-bar
{
    height: 3px;
    background: #333;
    margin-bottom: 10px;
    overflow: hidden;
}

.progress-fill
{
    height: 100%;
    background: var(--accent);
    width: 0%;
    transition: width 0.3s ease;
}

/* ---- Nav tabs ---- */

.nav-strip
{
    display: flex;
    gap: 0;
    overflow-x: auto;
    margin-bottom: 10px;
    border: 1px solid var(--border);
    background: #222;
}

.nav-tab
{
    padding: 8px 14px;
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    color: var(--muted2);
    cursor: pointer;
    border-right: 1px solid #333;
    white-space: nowrap;
    transition: color 0.15s ease, background 0.15s ease;
    user-select: none;
}

.nav-tab:hover
{
    color: var(--text);
    background: #2a2a2a;
}

.nav-tab.active
{
    color: var(--accent);
    background: var(--card);
    border-bottom: 2px solid var(--accent);
}

.nav-tab[data-page="diagnostics"]
{
    margin-left: auto;
    border-left: 1px solid #333;
}

/* ---- Page content ---- */

.page-content
{
    display: none;
}

.page-content.active
{
    display: block;
}

/* ---- Form groups ---- */

.form-group
{
    border: 1px solid var(--border);
    background: #222;
    margin-bottom: 10px;
    overflow: hidden;
}

.form-group-title
{
    padding: 6px 12px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--accent);
    background: rgba(255,187,0,0.04);
    border-bottom: 1px solid #333;
}

.form-row
{
    display: flex;
    align-items: flex-start; /* keeps controls aligned when labels wrap */
    justify-content: space-between;
    padding: 7px 12px;
    border-bottom: 1px solid #333;
    gap: 10px;
    min-height: 36px;
}

.form-row:last-child
{
    border-bottom: none;
}

.form-label
{
    font-size: 12px;
    color: var(--muted);
    flex-shrink: 0;
    min-width: 140px;
    padding-top: 6px;
}

.form-hint
{
    grid-column: 1;
    justify-self: end;
    text-align: right;
    font-size: 11px;
    color: var(--muted2);
    line-height: 1.1;
}

.form-right
{
    /* Two-column layout: optional hint/units on the left, control on the right */
    display: grid;
    grid-template-columns: 1fr 180px;
    column-gap: 10px;
    align-items: center;
    margin-left: auto;
    min-width: 320px;
}

.form-right > :not(.form-hint)
{
    grid-column: 2;
    justify-self: end;
}


.form-description
{
    padding: 6px 12px;
    font-size: 11px;
    color: var(--muted2);
    line-height: 1.5;
    border-bottom: 1px solid #333;
    background: rgba(0,0,0,0.15);
}

/* ---- Form inputs ---- */

input[type="text"],
input[type="number"]
{
    grid-column: 2;
    width: 180px;
    height: 30px;
    box-sizing: border-box;
    padding: 5px 8px;
    background: #333;
    color: var(--text);
    border: 1px solid var(--border2);
    border-radius: 0;
    font-size: 13px;
    font-family: inherit;
    outline: none;
}

input[type="text"]:focus,
input[type="number"]:focus
{
    border-color: var(--accent);
}

input[type="range"]
{
    grid-column: 2;
    width: 180px;
    height: 30px;
    box-sizing: border-box;
    accent-color: var(--accent);
    cursor: pointer;
    background: transparent;
    margin: 0;
    padding: 0;
}

select
{
    grid-column: 2;
    width: 180px;
    height: 30px;
    box-sizing: border-box;
    padding: 5px 8px;
    background: #333;
    color: var(--text);
    border: 1px solid var(--border2);
    border-radius: 0;
    font-size: 13px;
    font-family: inherit;
    cursor: pointer;
    outline: none;
}

select:focus
{
    border-color: var(--accent);
}

select option
{
    background: #2a2a2a;
    color: var(--text);
}

/* Toggle switch */

.toggle-switch
{
    display: flex;
    align-items: center;
    cursor: pointer;
    gap: 8px;
}

.toggle-switch input[type="checkbox"]
{
    display: none;
}

.toggle-track
{
    display: inline-block;
    width: 36px;
    height: 18px;
    background: #3a3a3a;
    border: 1px solid #4a4a4a;
    position: relative;
    transition: background 0.2s ease, border-color 0.2s ease;
    flex-shrink: 0;
}

.toggle-track::after
{
    content: "";
    position: absolute;
    top: 2px;
    left: 2px;
    width: 12px;
    height: 12px;
    background: #777;
    transition: left 0.2s ease, background 0.2s ease;
}

.toggle-switch input[type="checkbox"]:checked + .toggle-track
{
    background: rgba(92, 184, 92, 0.20);
    border-color: rgba(92, 184, 92, 0.50);
}

.toggle-switch input[type="checkbox"]:checked + .toggle-track::after
{
    left: 20px;
    background: var(--ok);
}

.toggle-label
{
    font-size: 12px;
    color: var(--text);
}

/* Radio buttons */

.radio-group
{
    display: flex;
    flex-direction: column;
    gap: 0;
}

.radio-row
{
    display: flex;
    align-items: center;
    padding: 5px 12px;
    border-bottom: 1px solid #333;
    gap: 10px;
}

.radio-row:last-child { border-bottom: none; }

.radio-row input[type="radio"]
{
    accent-color: var(--accent);
}

.radio-row label
{
    font-size: 12px;
    color: var(--text);
    cursor: pointer;
    flex: 1;
}

/* Two-column layout */

.two-col
{
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    align-items: start;
}

.two-col > *
{
    min-width: 0;
}

.two-col .form-right
{
    min-width: 0;
    grid-template-columns: 1fr 140px;
}

.two-col input[type="text"],
.two-col input[type="number"],
.two-col input[type="range"],
.two-col select
{
    width: 140px;
}

@media (max-width: 700px)
{
    .two-col { grid-template-columns: 1fr; }
}

/* ---- Console ---- */

.console-card
{
    margin-top: 6px;
}

.console-output
{
    background: #1e1e1e;
    border: 1px solid var(--border);
    padding: 8px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 12px;
    color: var(--muted);
    height: 164px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-break: break-all;
}

.console-input-row
{
    display: flex;
    align-items: stretch;
    gap: 6px;
    margin-top: 4px;
}

.console-input-row input
{
    flex: 1;
    height: 30px;
    padding: 5px 8px;
    background: #1e1e1e;
    color: var(--text);
    border: 1px solid var(--border);
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 12px;
    outline: none;
}

.console-input-row input:focus
{
    border-color: var(--accent);
}

.console-input-row button
{
border-radius: 0;
    height: 30px;
}


.console-actions
{
    display: flex;
    gap: 6px;
    margin-top: 4px;
}

/* ---- Firmware table ---- */

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

.fw-table th
{
    text-align: left;
    padding: 6px 10px;
    background: rgba(255,187,0,0.04);
    border-bottom: 1px solid #333;
    color: var(--muted);
    font-weight: 600;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.fw-table td
{
    padding: 6px 10px;
    border-bottom: 1px solid #2a2a2a;
    color: var(--text);
    vertical-align: middle;
}

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

.fw-table tr:hover td
{
    background: rgba(255,255,255,0.02);
}

.fw-table .fw-status
{
    display: flex;
    gap: 6px;
    align-items: center;
    font-size: 13px;
}

.fw-table .fw-installed { color: var(--ok); }
.fw-table .fw-installed-label { color: var(--ok); font-size: 11px; white-space: nowrap; }
.fw-table .fw-bootincompat { color: var(--warn); }
.fw-table .fw-beta { color: #7bb3ff; font-weight: 700; }

.fw-table .fw-summary
{
    max-width: 220px;
    white-space: normal;
    line-height: 1.3;
}

.fw-table .fw-message
{
    font-size: 11px;
    color: var(--muted2);
    max-width: 160px;
    white-space: normal;
    line-height: 1.3;
}

.fw-table button
{
    padding: 4px 10px;
    font-size: 11px;
}

/* ---- Footer ---- */

.footer-bar
{
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12px;
    color: var(--muted2);
    margin-top: 10px;
}

.footer-copyright { opacity: 0.7; }
.footer-version { opacity: 0.5; }

/* ---- Action bar ---- */

.action-bar
{
    display: flex;
    gap: 6px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}

.action-bar .spacer
{
    flex: 1;
}

/* ═══════════════════════════════════════════════
   Light Theme Overrides
   ═══════════════════════════════════════════════ */
[data-theme="light"] {
    --bg0: #f3f3f6;
    --bg1: #eaeaef;
    --card: #ffffff;
    --card2: #fafafe;
    --border: #e2e2ea;
    --border2: #d4d4dc;
    --text: #1a1a2e;
    --muted: #6b6b80;
    --muted2: #9494a6;
    --accent: #c08b12;
    --glow: rgba(192,139,18,0.04);
    --ok: #1a9e3f;
    --warn: #c08b12;
    --err: #d93025;
    --shadow: 0 2px 8px rgba(0,0,0,0.06), 0 1px 3px rgba(0,0,0,0.04);
}
[data-theme="light"] .header-title { color: #1a1a2e; }
[data-theme="light"] .logo { filter: invert(1) drop-shadow(0 4px 12px rgba(0,0,0,0.08)); }
[data-theme="light"] .status { background: #f0f0f4; }
[data-theme="light"] button { background: #ffffff; color: #3c3c52; }
[data-theme="light"] button:hover { background: #f0f0f4; border-color: #c0c0cc; }
[data-theme="light"] button:active { background: #eaeaef; }
[data-theme="light"] button.accent { background: rgba(192,139,18,0.07); border-color: rgba(192,139,18,0.22); color: #9a7010; }
[data-theme="light"] button.accent:hover { background: rgba(192,139,18,0.13); border-color: rgba(192,139,18,0.35); }
[data-theme="light"] button.danger { border-color: rgba(217,48,37,0.16); }
[data-theme="light"] button.danger:hover { background: rgba(217,48,37,0.06); }
[data-theme="light"] .progress-bar { background: #eaeaef; }
[data-theme="light"] .nav-strip { background: #ffffff; }
[data-theme="light"] .nav-tab { border-right-color: #e2e2ea; }
[data-theme="light"] .nav-tab:hover { background: #f0f0f4; }
[data-theme="light"] .nav-tab[data-page="diagnostics"] { border-left-color: #e2e2ea; }
[data-theme="light"] .form-group { background: #ffffff; }
[data-theme="light"] .form-group-title { background: rgba(192,139,18,0.04); border-bottom-color: #e2e2ea; color: #9a7010; }
[data-theme="light"] .form-row { border-bottom-color: #f3f3f6; }
[data-theme="light"] .form-description { border-bottom-color: #f3f3f6; background: #fafafe; }
[data-theme="light"] input[type="text"],
[data-theme="light"] input[type="number"] { background: #f0f0f4; }
[data-theme="light"] select { background: #f0f0f4; }
[data-theme="light"] select option { background: #ffffff; }
[data-theme="light"] .toggle-track { background: #e2e2ea; border-color: #d4d4dc; }
[data-theme="light"] .toggle-track::after { background: #ffffff; box-shadow: 0 1px 3px rgba(0,0,0,0.12); }
[data-theme="light"] .toggle-switch input[type="checkbox"]:checked + .toggle-track { background: #1a9e3f; border-color: #1a9e3f; }
[data-theme="light"] .toggle-switch input[type="checkbox"]:checked + .toggle-track::after { background: #ffffff; }
[data-theme="light"] .radio-row { border-bottom-color: #f3f3f6; }
[data-theme="light"] .console-output { background: #f0f0f4; }
[data-theme="light"] .console-input-row input { background: #f0f0f4; }
[data-theme="light"] .fw-table th { background: rgba(192,139,18,0.04); border-bottom-color: #e2e2ea; }
[data-theme="light"] .fw-table td { border-bottom-color: #f3f3f6; }
[data-theme="light"] .fw-table tr:hover td { background: #fafafe; }
[data-theme="light"] .fw-table .fw-beta { color: #3b7dd8; }

/* Theme toggle in footer */
.theme-toggle {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    user-select: none;
    font-size: 11px;
    color: var(--muted2);
}
.theme-toggle:hover { color: var(--muted); }
.theme-toggle-label { font-size: 11px; }
.theme-toggle-track {
    width: 30px;
    height: 16px;
    background: #3a3a3a;
    border: 1px solid #4a4a4a;
    border-radius: 100px;
    position: relative;
    transition: background 0.2s ease, border-color 0.2s ease;
}
.theme-toggle-track::after {
    content: "";
    position: absolute;
    top: 2px;
    left: 2px;
    width: 10px;
    height: 10px;
    background: #777;
    border-radius: 50%;
    transition: left 0.2s ease, background 0.2s ease;
}
[data-theme="light"] .theme-toggle-track {
    background: #e2e2ea;
    border-color: #d4d4dc;
}
[data-theme="light"] .theme-toggle-track::after {
    left: 16px;
    background: #c08b12;
}