/* kvmberry portal styles — light theme, clean/ops-console feel. */

:root {
    --bg:        #f4f6fa;
    --panel:     #ffffff;
    --panel-2:   #fafbfd;
    --border:    #e1e5ec;
    --text:      #1d2433;
    --text-2:    #5b6478;
    --muted:     #8a92a5;
    --primary:   #4b6bfb;
    --primary-d: #3d59e0;
    --accent:    #ff5a5f;
    --ok:        #0c9a4d;
    --warn:      #c48400;
    --err:       #c73838;
    --radius:    10px;
    --shadow:    0 1px 2px rgba(16,24,40,.04), 0 4px 16px rgba(16,24,40,.06);
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--text);
    font: 14px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
          Helvetica, Arial, sans-serif;
}

code, tt, pre {
    font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
    font-size: 12.5px;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

button {
    font: inherit;
    border: 0;
    border-radius: 8px;
    padding: 10px 16px;
    cursor: pointer;
    background: var(--primary);
    color: #fff;
    font-weight: 600;
    transition: background .15s ease, transform .05s ease;
}
button:hover:not(:disabled) { background: var(--primary-d); }
button:active:not(:disabled) { transform: translateY(1px); }
button.ghost {
    background: transparent;
    color: var(--text-2);
    border: 1px solid var(--border);
}
button.ghost:hover:not(:disabled) { background: var(--panel-2); color: var(--text); }
button:disabled { opacity: .6; cursor: not-allowed; }

/* =============== login =============== */

body.login {
    min-height: 100vh;
    display: grid;
    place-items: center;
    background:
        radial-gradient(1200px 700px at -10% -20%, #e6ecff 0%, transparent 60%),
        radial-gradient(1000px 600px at 110% 120%, #ffe6e6 0%, transparent 60%),
        var(--bg);
}

.login-card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 14px;
    box-shadow: var(--shadow);
    padding: 40px 36px 32px;
    width: 360px;
    max-width: 90vw;
}
.login-card .brand {
    display: flex;
    gap: 14px;
    align-items: center;
    margin-bottom: 28px;
}
.login-card .brand h1 {
    margin: 0;
    font-size: 22px;
    letter-spacing: -.01em;
}
.login-card .brand-sub {
    margin: 0;
    color: var(--muted);
    font-size: 13px;
    letter-spacing: .02em;
    text-transform: uppercase;
}
.login-card svg { color: var(--primary); }

.login-card label {
    display: block;
    font-weight: 600;
    font-size: 13px;
    margin-bottom: 8px;
    color: var(--text-2);
}

.login-card input[type="password"] {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font: inherit;
    background: var(--panel-2);
    transition: border .15s, background .15s, box-shadow .15s;
}
.login-card input[type="password"]:focus {
    outline: 0;
    border-color: var(--primary);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(75,107,251,.15);
}

.login-card button[type="submit"] {
    width: 100%;
    margin-top: 16px;
    padding: 11px 16px;
}
.login-card .error {
    margin-top: 12px;
    color: var(--err);
    font-size: 13px;
    background: #fff3f3;
    border: 1px solid #ffd1d1;
    padding: 8px 12px;
    border-radius: 8px;
}
.login-card .hint {
    margin: 24px 0 0;
    color: var(--muted);
    font-size: 12px;
    text-align: center;
}

/* =============== app shell =============== */

body.app { min-height: 100vh; }

.top {
    height: 56px;
    background: var(--panel);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 20px;
    gap: 16px;
}
.top-brand {
    display: flex; align-items: center; gap: 10px;
    font-size: 15px;
}
.top-brand .logo-dot {
    width: 12px; height: 12px; border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 0 3px rgba(255,90,95,.15);
}
.top-brand .muted { color: var(--muted); }
.top-actions { margin-left: auto; }

.layout {
    display: grid;
    grid-template-columns: 220px 1fr;
    min-height: calc(100vh - 56px);
}

.side {
    background: var(--panel);
    border-right: 1px solid var(--border);
    padding: 20px 12px;
}
.side nav a {
    display: block;
    padding: 8px 12px;
    border-radius: 6px;
    color: var(--text-2);
    font-weight: 500;
}
.side nav a:hover { background: var(--panel-2); text-decoration: none; color: var(--text); }
.side nav a.active { background: rgba(75,107,251,.08); color: var(--primary); }
.side nav a.disabled { color: var(--muted); pointer-events: none; }

.content {
    padding: 28px 32px 48px;
    max-width: 1200px;
}

.crumbs {
    color: var(--muted);
    font-size: 13px;
    margin-bottom: 4px;
}
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--text); }
.crumbs span { margin: 0 6px; }

h2 { margin: 6px 0 6px; font-size: 22px; letter-spacing: -.01em; }
h3 { margin: 0 0 6px; font-size: 15px; }
h4 { margin: 0 0 14px; font-size: 12px; text-transform: uppercase;
     letter-spacing: .06em; color: var(--muted); }

.subtitle { color: var(--muted); margin: 0 0 24px; }

/* =============== device cards =============== */

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 16px;
}

.card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px 20px;
    display: block;
    color: inherit;
    transition: box-shadow .15s, border-color .15s, transform .05s;
}
.card:hover {
    text-decoration: none;
    box-shadow: var(--shadow);
    border-color: #c8d0e0;
}
.card:active { transform: translateY(1px); }

.card-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    gap: 12px;
}
.card-head .uid {
    font-family: ui-monospace, SFMono-Regular, monospace;
    font-size: 12px;
    color: var(--muted);
}
.device-card dl {
    margin: 12px 0 14px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px 20px;
}
.device-card dl div { display: flex; flex-direction: column; }
.device-card dt {
    font-size: 11px; text-transform: uppercase; letter-spacing: .05em;
    color: var(--muted);
}
.device-card dd { margin: 0; font-size: 13px; }

.card-foot {
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
}

/* =============== status pill =============== */

.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    text-transform: lowercase;
    letter-spacing: .02em;
    border: 1px solid transparent;
}
.status-pill .dot {
    width: 8px; height: 8px; border-radius: 50%;
    box-shadow: 0 0 0 2px rgba(0,0,0,0);
}
.status-connected { background: rgba(12,154,77,.1); color: var(--ok); border-color: rgba(12,154,77,.2); }
.status-connected .dot {
    background: var(--ok);
    box-shadow: 0 0 0 2px rgba(12,154,77,.18);
    animation: ping 2s ease-out infinite;
}
.status-pill.big { padding: 6px 14px; font-size: 13px; }

@keyframes ping {
    0%   { box-shadow: 0 0 0 2px rgba(12,154,77,.18); }
    70%  { box-shadow: 0 0 0 8px rgba(12,154,77,0); }
    100% { box-shadow: 0 0 0 2px rgba(12,154,77,0); }
}

/* =============== device detail =============== */

.header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    margin: 0 0 24px;
}
.uid-big code {
    background: var(--panel);
    padding: 3px 8px;
    border-radius: 6px;
    border: 1px solid var(--border);
    color: var(--text-2);
}

.panels {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
    margin-bottom: 28px;
}
.panel {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px 20px;
}
.panel dl.kv { margin: 0; display: grid; gap: 10px 16px; }
.panel dl.kv div {
    display: grid; grid-template-columns: 110px 1fr; gap: 12px;
    align-items: baseline;
}
.panel dl.kv dt {
    font-size: 12px; color: var(--muted);
    text-transform: uppercase; letter-spacing: .04em;
}
.panel dl.kv dd { margin: 0; font-size: 13.5px; }

/* =============== action bar / heartbeat =============== */

.action-bar {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 20px;
}
.action-bar .primary {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 20px;
    background: var(--accent);
    color: #fff;
}
.action-bar .primary:hover:not(:disabled) { background: #e94a4f; }
.action-bar .muted { color: var(--muted); font-size: 13px; }

.hb-glyph { font-size: 16px; line-height: 1; }
.pulse .hb-glyph { display: inline-block; animation: beat 1.4s ease-in-out infinite; }
.beating { animation: shake .5s linear; }

@keyframes beat {
    0%, 100% { transform: scale(1); }
    15%      { transform: scale(1.18); }
    30%      { transform: scale(.95); }
    45%      { transform: scale(1.12); }
    60%      { transform: scale(1); }
}
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-2px); }
    40%, 80% { transform: translateX(2px); }
}

/* =============== file explorer =============== */

.explorer {
    padding: 0;
    overflow: hidden;
}
.explorer-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 18px;
    border-bottom: 1px solid var(--border);
    background: var(--panel-2);
}
.explorer-title { display: flex; align-items: baseline; gap: 12px; }
.explorer-title h4 { margin: 0; }
.explorer-toolbar { display: flex; gap: 8px; }
button.sm {
    padding: 5px 12px;
    font-size: 12.5px;
}

/* address bar (Windows-explorer-style breadcrumb) */
.address-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    background: var(--panel);
    border-bottom: 1px solid var(--border);
    font-size: 13px;
    min-height: 32px;
}
.addr-root {
    font-size: 16px;
    line-height: 1;
    margin-right: 2px;
    color: var(--muted);
}
.addr-segments {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 4px;
}
.addr-seg {
    padding: 3px 8px;
    border-radius: 4px;
    color: var(--text);
    font-weight: 500;
}
.addr-seg:hover {
    background: var(--panel-2);
    text-decoration: none;
    color: var(--primary);
}
.addr-chevron { color: var(--muted); padding: 0 2px; }

/* wrapper that holds the loading overlay + table */
.fs-wrapper {
    position: relative;
    max-height: 440px;
    overflow: auto;
    background: var(--panel);
}
.fs-overlay {
    position: absolute;
    inset: 0;
    background: rgba(255,255,255,.82);
    backdrop-filter: blur(1.5px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    z-index: 2;
}
.fs-overlay[hidden] { display: none; }
.spinner {
    width: 28px; height: 28px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}
.spinner-label {
    font-size: 13px;
    color: var(--text-2);
}
@keyframes spin { to { transform: rotate(360deg); } }

/* file-explorer table */
.fs-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}
.fs-table thead {
    position: sticky;
    top: 0;
    z-index: 1;
    background: var(--panel-2);
}
.fs-table th {
    text-align: left;
    padding: 8px 14px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: var(--muted);
    border-bottom: 1px solid var(--border);
}
.fs-table td {
    padding: 7px 14px;
    border-bottom: 1px solid #f0f2f6;
}
.fs-table tbody tr:hover {
    background: #f4f8ff;
}
.fs-row-dir    { cursor: pointer; }
.fs-row-dir:hover .fs-name { color: var(--primary); }

.fs-name-cell {
    display: flex;
    align-items: center;
    gap: 10px;
}
.fs-name {
    font-weight: 500;
    color: var(--text);
}

.fs-icon {
    width: 18px; height: 18px;
    flex: none;
}
.fs-icon-folder { color: #e0a23c; }     /* amber folder, Windows-ish */
.fs-icon-file   { color: #6b7181; }

.fs-size { color: var(--text-2); font-variant-numeric: tabular-nums; }

/* kind badge (reused from before, tuned) */
.fs-kind {
    display: inline-block;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: .05em;
    padding: 2px 6px;
    border-radius: 4px;
    min-width: 40px;
    text-align: center;
    color: #fff;
    background: var(--muted);
}
.fs-kind.kind-pdf  { background: #c73838; }
.fs-kind.kind-docx { background: #2b6cb0; }
.fs-kind.kind-xlsx { background: #2f855a; }
.fs-kind.kind-pptx { background: #c05621; }
.fs-kind.kind-csv  { background: #0e7c86; }
.fs-kind.kind-md   { background: #5a5a5a; }
.fs-kind.kind-mp4  { background: #6b46c1; }
.fs-kind.kind-img  { background: #d69e2e; }
.fs-kind.kind-bin  { background: #384252; }
.fs-kind.kind-sys  { background: #8a92a5; }
.fs-kind.kind-log  { background: #6b7181; }

.fs-empty {
    padding: 48px 12px;
    text-align: center;
    color: var(--text-2);
}
.fs-empty-glyph {
    display: block;
    font-size: 40px;
    margin-bottom: 10px;
    opacity: .6;
}
.fs-empty-title {
    font-weight: 600;
    font-size: 14px;
    color: var(--text);
    margin-bottom: 4px;
}
.fs-empty-sub {
    font-size: 13px;
    color: var(--muted);
}