/*
POT: MODULI/03_RaziskovalniSvetovi/FizikaZvoka/FrekvencniLaboratorij/assets/laboratorij.css
NAMEN: Vizualni slog laboratorija.
UPORABA: Uporabi ga prikazna stran prek <link>.
ODVISNOSTI: prikaz/index.php, laborarorijski JavaScript, brez zunanjih knjižnic.
ZAHTEVANA STOPNJA: S0
GLOBALNE SPREMENLJIVE: CSS spremenljivke tematskega sistema.
KAJ ŠE MANJKA: Po potrebi lahko kasneje dodamo še ločen visokokontrastni profil za učilnice.
*/
:root {
    --bg: #07111f;
    --bg-2: #0c1c33;
    --panel: rgba(10, 19, 35, 0.82);
    --panel-border: rgba(103, 232, 249, 0.18);
    --text: #e5f3ff;
    --muted: #8ca7bf;
    --accent: #22d3ee;
    --accent-2: #a78bfa;
    --danger: #f97316;
    --shadow: 0 24px 60px rgba(0, 0, 0, 0.36);
    --radius: 24px;
    --radius-sm: 16px;
    --gap: 18px;
    font-synthesis-weight: none;
    color-scheme: dark;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    min-height: 100%;
    background:
        radial-gradient(circle at top left, rgba(34, 211, 238, 0.14), transparent 30%),
        radial-gradient(circle at top right, rgba(167, 139, 250, 0.16), transparent 28%),
        linear-gradient(180deg, var(--bg), var(--bg-2));
    color: var(--text);
    font-family: "Trebuchet MS", "Segoe UI", system-ui, sans-serif;
}

body {
    padding: 24px;
}

.lab-shell {
    max-width: 1440px;
    margin: 0 auto;
}

.hero-panel,
.control-grid,
.viz-grid {
    display: grid;
    gap: var(--gap);
}

.hero-panel {
    grid-template-columns: minmax(0, 2fr) minmax(280px, 1fr);
    align-items: stretch;
    margin-bottom: 22px;
}

.hero-copy,
.hero-card,
.panel {
    background: var(--panel);
    border: 1px solid var(--panel-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    backdrop-filter: blur(14px);
}

.hero-copy {
    padding: 28px;
    position: relative;
    overflow: hidden;
}

.hero-copy::after {
    content: "";
    position: absolute;
    inset: auto -60px -80px auto;
    width: 260px;
    height: 260px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(34, 211, 238, 0.22), transparent 70%);
    pointer-events: none;
}

.eyebrow {
    margin: 0 0 10px;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--accent);
    font-size: 0.8rem;
}

h1,
h2,
p {
    margin-top: 0;
}

h1 {
    margin-bottom: 12px;
    font-size: clamp(2rem, 5vw, 4rem);
    line-height: 0.96;
}

.lede {
    max-width: 62ch;
    color: var(--text);
    font-size: 1.05rem;
}

.warning {
    color: #ffd7b1;
    font-size: 0.95rem;
    margin-bottom: 18px;
}

.hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.hero-meta span,
.status-line,
.panel-head p,
dl.stats div,
.hero-card dl div {
    color: var(--muted);
}

.hero-meta span {
    padding: 10px 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.hero-card {
    padding: 22px;
}

.hero-card h2,
.panel-head h2 {
    margin-bottom: 6px;
}

.hero-card dl,
.stats {
    margin: 0;
}

.hero-card dl div,
.stats div {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 12px;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.hero-card dl div:last-child,
.stats div:last-child {
    border-bottom: 0;
}

.hero-card dt,
.stats dt {
    font-weight: 700;
    color: var(--text);
}

.control-grid {
    grid-template-columns: 1.5fr 1fr;
    margin-bottom: 22px;
}

.panel {
    padding: 22px;
}

.panel-head p {
    margin-bottom: 0;
}

.controls {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin-top: 18px;
}

.controls label {
    display: grid;
    gap: 8px;
}

.controls label span,
.controls .check span {
    font-size: 0.92rem;
    color: var(--muted);
}

select,
input[type="number"],
input[type="range"],
button {
    font: inherit;
}

select,
input[type="number"] {
    width: 100%;
    border-radius: 14px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text);
    padding: 12px 14px;
}

input[type="range"] {
    width: 100%;
}

.check {
    align-items: center;
    grid-template-columns: auto 1fr;
    gap: 10px;
}

.button-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 18px;
}

button {
    border: 0;
    border-radius: 999px;
    padding: 12px 18px;
    cursor: pointer;
    color: var(--text);
    background: rgba(255, 255, 255, 0.09);
}

button:hover,
button:focus-visible {
    outline: none;
    transform: translateY(-1px);
    box-shadow: 0 0 0 2px rgba(34, 211, 238, 0.22);
}

button.primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #04111d;
    font-weight: 800;
}

.status-line {
    margin-top: 16px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.stats-panel {
    align-self: stretch;
}

.stats {
    display: grid;
    gap: 0;
}

.stats dd,
.hero-card dd {
    margin: 0;
    text-align: right;
    color: var(--text);
    font-weight: 700;
}

.viz-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.viz-panel canvas {
    display: block;
    width: 100%;
    height: 240px;
    margin-top: 16px;
    border-radius: 18px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.015));
    border: 1px solid rgba(255, 255, 255, 0.07);
}

kbd {
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-bottom-width: 3px;
    border-radius: 8px;
    padding: 2px 6px;
    background: rgba(255, 255, 255, 0.06);
}

@media (max-width: 1100px) {
    .hero-panel,
    .control-grid,
    .viz-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 720px) {
    body {
        padding: 14px;
    }

    .hero-copy,
    .hero-card,
    .panel {
        padding: 18px;
        border-radius: 18px;
    }

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

    .button-row {
        flex-direction: column;
    }

    button {
        width: 100%;
    }
}