/* IC For That Stylesheet */
/* Design language: Soldermask Green PCB, Copper Traces, Silkscreen type. */
/* Signature Element: #trace-hero - copper current animated along path. */


:root {
    --board: #0e2a1d; /* soldermask green, base */
    --board-raised: #143823; /* panel / card surface, one layer up */
    --board-line: #1e4a30; /* hairline separators, pad edges */
    --copper: #c9862f; /* trace / accent copper */
    --copper-bright: #e6a94a; /* hot copper - hover, active current */
    --silk: #eef1e4; /* silkscreen white-ish, primary text */
    --silk-dim: #9fb6a4; /* muted silkscreen, secondary text */
    --silk-faint: #6f8779; /* faintest legible hint, hints */
    --solder: #cfd6cd; /* solder-pad silver, borders on nodes */
    --amber: #f2b134; /* status LED amber */
    --danger: #e0654f; /* fault red */

    --font-display: 'IBM Plex Mono', 'Courier New', monospace;
    --font-body: 'IBM Plex Sans', system-ui, sans-serif;

    --radius-sm: 3px;
    --radius-md: 6px;
    --grid: 20px;
}

* {
    box-sizing: border-box;
}

html {
    color-scheme: dark;
}

body{
    margin: 0;
    min-height: 100vh;
    background-color: var(--board);
    background-image:
        radial-gradient(circle, rgba(238, 241, 228, 0.05) 1px, transparent 1px);
    background-size: var(--grid) var(--grid);
    color: var(--silk);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

main {
    max-width: 720px;
    margin: 0 auto;
    padding: 64px 24px 96px;
}

/* Header */

.page-header {
    text-align: center;
    margin-bottom: 40px;
}

.eyebrow {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--copper);
    padding: 5px 12px;
    border: 1px solid var(--board-line);
    border-radius: var(--radius-sm);
    background: var(--board-raised);
    margin-bottom: 18px;
}

h1 {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(2.1rem, 5vw, 3rem);
    letter-spacing: -0.01em;
    margin: 0 0 14px;
    color: var(--silk);
}

.page-header > p {
    max-width: 46ch;
    margin: 0 auto;
    color: var(--silk-dim);
    font-size: 1.02rem;
}

/* Signature Element - trace-hero */

#trace-hero {
    display: block;
    width: 100%;
    height: auto;
    margin: 48px 0 52px;
    overflow: visible;
}

.node-box {
    fill: var(--board-raised);
    stroke: var(--solder);
    stroke-width: 1.5;
}

.node-text {
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.08em;
    fill: var(--silk-dim);
    text-transform: uppercase;
}

.chip-box {
    fill: #0a2116;
    stroke: var(--copper);
    stroke-width: 2;
    filter: drop-shadow(0 0 10px rgba(201, 134, 47, 0.35));
    /* width and x removed — these are now controlled purely by the
       SVG attributes in the markup / script.js, since CSS geometry
       properties (width/x) override attribute values set via
       setAttribute() and were silently pinning the box at 128px/256. */
}

.chip-text {
    font-family: var(--font-display);
    font-size: 16px; /* Scaled down slightly from 22px to fit longer part numbers */
    font-weight: 700;
    fill: var(--copper-bright);
    text-anchor: middle;
}

.trace-path {
    fill: none;
    stroke: var(--board-line);
    stroke-width: 2.5;
}

/* Animated current */
#trace-left
#trace-right {
    stroke: var(--board-line);
    stroke-dasharray: 10 8;
    animation: current-flow 1.4s linear infinite;
}

#trace-left {
    stroke: var(--copper);
    animation-delay: 0s;
}

#trace-right {
    stroke: var(--copper);
    animation-delay: 0.35s;
}

@keyframes current-flow  {
    to {
        stroke-dashoffset: -36;
    }

}

/* Search */

.search-section {
    margin-bottom: 28px;
}

.search-section label {
    display: block;
    font-family: var(--font-display);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--silk-faint);
    margin-bottom: 10px;
}

#query {
    width: 100%;
    background: var(--board-raised);
    border: 1px solid var(--board-line);
    border-radius: var(--radius-md);
    color: var(--silk);
    font-family: var(--font-body);
    font-size: 1.05rem;
    padding: 16px 18px;
    outline: none;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

#query::placeholder {
    color: var(--silk-faint);
}

#query:hover {
    border-color: #2c5e3d;
}

#query:focus-visible {
    border-color: var(--copper);
    box-shadow: 0 0 0 3px rgba(201, 134, 47, 0.22);
}

.status-line {
    min-height: 20px;
    margin-top: 10px;
    font-family: var(--font-display);
    font-size: 13px;
    color: var(--silk-faint);
}

.status-line.center {
    text-align: center;
}

/* Loading state gets a pulsing LED before text */
#loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 18px 0;
    margin-top: 20px;
    color: var(--silk-dim);
    font-size: 13px;
    letter-spacing: 0.05em;
    background: var(--board-raised);
    border: 1px solid var(--board-line);
    border-radius: var(--radius-md);
}

#loading.hidden {
    display: none;
}

#loading::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--amber);
    box-shadow: 0 0 8px 1px rgba(242, 177, 52, 0.7);
    animation: led-pulse 1s ease-in-out infinite;
}

@keyframes led-pulse {
    0%, 100% {
        opacity: 0.35;
    }
    50% {
        opacity: 1;
    }
}


/* Cards */

.card {
    background: var(--board-raised);
    border: 1px solid var(--board-line);
    border-radius: var(--radius-md);
    padding: 28px;
    margin-top: 20px;
    position: relative;
}

/* corner solder pad marks */

.card::before,
.card::after {
    content: "";
    position: absolute;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--board-line);
    top: 10px
}

.card::before { left: 10px; }
.card::after { right: 10px;}

.hidden {
    display: none;
}

.wizard-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 22px;
}

h2 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0;
    color: var(--silk);
}

.wizard-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px 20px;
}

.field-label {
    font-family: var(--font-display);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--silk-faint);
    margin-bottom: 8px;
}

.protocol-name {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--copper-bright);
    margin-bottom: 14px;
}

.role-toggle {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

/* buttons rendered into .role-toggle by script.js - styled like 2 pos header pin, click to reset jumper. */
.role-toggle button {
    font-family: var(--font-display);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: var(--silk-dim);
    background: var(--board);
    border: 1px solid var(--board-line);
    border-radius: var(--radius-sm);
    padding: 8px 14px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.role-toggle button:hover {
    color: var(--silk);
    border-color: var(--copper);
}

.role-toggle button[aria-pressed="true"],
.role-toggle button:active {
    background: var(--copper);
    border-color: var(--copper);
    color: #1a1005;
}

.hint {
    grid-column: 1 / -1;
    margin: 0;
    font-size: 13px;
    color: var(--silk-faint);
    border-top: 1px dashed var(--board-line);
    padding-top: 16px;
}

/* Buttons */

button {
    font-family: var(--font-body);
}

#swap-btn {
    flex-shrink: 0;
    background: transparent;
    border: 1px solid var(--board-line);
    color: var(--silk-dim);
    font-size: 13px;
    font-weight: 500;
    padding: 9px 14px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: border-color 0.15s ease, color 0.15s ease;
}

#swap-btn:hover {
    border-color: var(--copper);
    color: var(--copper-bright);
}

#confirm-btn {
    grid-column: 1 / -1;
    background: var(--copper);
    color: #1a1005;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 600;
    padding: 14px 20px;
    cursor: pointer;
    transition: background 0.15s ease, transform 0.1s ease;
}

#confirm-btn:hover {
    background: var(--copper-bright);
}

#confirm-btn:active {
    transform: translateY(1px);
}

button:focus-visible {
    outline: 2px solid var(--copper-bright);
    outline-offset: 2px;
}

/* Result Section Populated by JS */
#result h2,
#result h3 {
    font-family: var(--font-display);
    color: var(--silk);
}

#result p {
    color: var(--silk-dim);
}

#result a {
    color: var(--copper-bright);
}

#result code,
#result pre {
    font-family: var(--font-display);
    background: var(--board);
    border: 1px solid var(--board-line);
    border-radius: var(--radius-sm);
}

#result code {
    padding: 2px 6px;
    font-size: 0.9em;
}

#result pre {
    padding: 14px;
    overflow-x: auto;
}

/* Responsive */

@media (max-width: 560px) {
    main {
        padding: 44px 16px 72px;
    }

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

    .card {
        padding: 20px;
    }

    #trace-hero {
        margin: 36px 0 40px;
    }
}

/* Reduced motion */

@media (prefers-reduced-motion: reduce) {
    #trace-left,
    #trace-right,
    #loading::before {
        animation: none;
    }
}