:root {
    --bg: #0b0f14;
    --card: #111723;
    --muted: #7f8ea3;
    --text: #e8f0ff;
    --accent: #4ea8ff;
    --ok: #7be495;
    --warn: #ffd166;
    --danger: #ff6b6b;
    --ring: rgba(78, 168, 255, .25);
    --radius: 16px;
}

* {
    box-sizing: border-box
}

html,
body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--text);
    font: 16px/1.5 system-ui, Segoe UI, Roboto, Inter, Arial
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 20px
}

header h1 {
    margin: .2rem 0 0
}

.sub {
    color: var(--muted);
    margin: .25rem 0 0
}

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

@media (min-width:900px) {
    .grid {
        grid-template-columns: 1fr 1fr 1fr
    }
}

.card {
    background: var(--card);
    border: 1px solid #1a2433;
    border-radius: var(--radius);
    padding: 16px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, .2)
}

.card h2 {
    margin: .2rem 0 1rem
}

.card h3 {
    margin: .5rem 0
}

.row {
    display: grid;
    gap: 10px;
    margin: 10px 0
}

.row.two {
    grid-template-columns: 1fr 1fr
}

.row.four {
    grid-template-columns: repeat(4, 1fr)
}

/* Pattern Grid specific rows */
.row.six {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 12px;
}

.row.twelve {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 12px;
}

.row.twentyfour {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 12px;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .row.six {
        grid-template-columns: repeat(3, 1fr);
    }

    .row.twelve {
        grid-template-columns: repeat(3, 1fr);
    }

    .row.twentyfour {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Prevent minute labels from wrapping */
#patternGrid div label,
#depthGrid div label {
    white-space: nowrap;
    font-size: 0.8rem;
    margin-bottom: 6px;
}

.patternCell {
    text-align: center;
    padding: 10px 4px;
}

label {
    display: block;
    font-size: .9rem;
    color: var(--muted);
    margin-bottom: 4px
}

input {
    width: 100%;
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px solid #26344a;
    background: #0e1520;
    color: var(--text);
    outline: none;
    transition: border .15s, box-shadow .15s
}

input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 4px var(--ring)
}

/* ── NEW: readonly inputs look distinct ── */
input[readonly] {
    background: #080d12;
    color: var(--muted);
    cursor: not-allowed;
    border-style: dashed;
}

details {
    margin-top: 8px
}

summary {
    cursor: pointer;
    color: var(--accent)
}

.patternCell::-webkit-outer-spin-button,
.patternCell::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.patternCell[type=number] {
    -moz-appearance: textfield;
}

select {
    width: 100%;
    padding: 8px 10px;
    border-radius: 10px;
    border: 1px solid #26344a;
    background: #0e1520;
    color: var(--text);
    outline: none;
    transition: border .15s, box-shadow .15s;
    font-size: 0.9rem;
    appearance: none;
    background-image: url("data:image/svg+xml;utf8,<svg fill='%23e8f0ff' height='24' viewBox='0 0 24 24' width='24' xmlns='http://www.w3.org/2000/svg'><path d='M7 10l5 5 5-5z'/></svg>");
    background-repeat: no-repeat;
    background-position: right 10px center;
    background-size: 16px;
}

select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 4px var(--ring);
    background-image: url("data:image/svg+xml;utf8,<svg fill='%234ea8ff' height='24' viewBox='0 0 24 24' width='24' xmlns='http://www.w3.org/2000/svg'><path d='M7 10l5 5 5-5z'/></svg>");
}

.box {
    border: 1px dashed #243247;
    border-radius: 12px;
    padding: 10px
}

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

button {
    appearance: none;
    border: 0;
    background: var(--accent);
    color: #021b33;
    font-weight: 700;
    padding: 12px 18px;
    border-radius: 12px;
    cursor: pointer;
    box-shadow: 0 8px 20px rgba(78, 168, 255, .25)
}

button:hover {
    filter: brightness(1.05)
}

#msg {
    color: var(--muted)
}

.metrics {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-bottom: 10px
}

.k {
    display: block;
    color: var(--muted);
    font-size: .9rem
}

.metrics span:last-child {
    font-size: 1.25rem;
    font-weight: 700
}

.tableWrap {
    overflow: auto;
    border-radius: 12px;
    border: 1px solid #1a2433
}

table {
    width: 100%;
    border-collapse: collapse;
    background: #0f1724
}

thead th {
    position: sticky;
    top: 0;
    background: #0e1520
}

th,
td {
    padding: 10px 12px;
    border-bottom: 1px solid #1a2433;
    text-align: right
}

th:first-child,
td:first-child {
    text-align: left
}

tfoot th {
    background: #0e1520;
    font-weight: 800
}

.hint {
    color: var(--muted);
    font-size: .9rem
}

.footer {
    opacity: .8
}

.bad {
    color: var(--danger)
}

.good {
    color: var(--ok)
}

.patternCell[value="—"] {
    color: var(--muted) !important;
    border-style: dashed !important;
    border-color: #243247 !important;
}

.pattern-label {
    color: var(--accent) !important;
    font-weight: 600 !important;
    font-size: 0.95rem !important;
    display: block;
    margin-bottom: 12px;
    text-transform: none;
}

.depthCell {
    background: #0b111a !important;
    color: var(--text) !important;
    border-color: #1a2433 !important;
}

.depth-box {
    color: var(--text) !important;
    background: #0b111a !important;
    border-color: #1a2433 !important;
}

#patternGrid div label,
#depthGrid div label {
    white-space: nowrap;
}


/* ============================================================
   NEW RULES – Table 2.6 additions
   (everything below this line is new; nothing above was changed)
============================================================ */

/* Small pill badge next to label — blue for fixed values */
.fixed-badge {
    display: inline-block;
    font-size: 0.72rem;
    background: rgba(78, 168, 255, 0.12);
    color: var(--accent);
    border: 1px solid rgba(78, 168, 255, 0.3);
    border-radius: 5px;
    padding: 1px 5px;
    margin-left: 5px;
    vertical-align: middle;
}

/* Small pill badge — yellow for the zero continuous loss */
.zero-badge {
    display: inline-block;
    font-size: 0.72rem;
    background: rgba(255, 209, 102, 0.08);
    color: var(--warn);
    border: 1px solid rgba(255, 209, 102, 0.25);
    border-radius: 5px;
    padding: 1px 5px;
    margin-left: 5px;
    vertical-align: middle;
}

/* Slider row layout */
.range-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 6px;
}

.range-row input[type=range] {
    flex: 1;
    padding: 0;
    border: none;
    background: transparent;
    accent-color: var(--accent);
    cursor: pointer;
}

/* Min/max labels beside the slider */
.range-label {
    color: var(--muted);
    font-size: 0.8rem;
    min-width: 30px;
}

/* Live value display to the right of the slider */
.range-val {
    color: var(--ok);
    font-weight: 700;
    font-size: 1rem;
    min-width: 50px;
    text-align: right;
}

/* Yellow warning box inside the impervious panel */
.info-warn {
    margin-top: 10px;
    padding: 8px 10px;
    background: rgba(255, 209, 102, 0.07);
    border: 1px solid rgba(255, 209, 102, 0.22);
    border-radius: 8px;
    font-size: 0.8rem;
    color: var(--warn);
}