/* Profit calculator component (e-shop ROI from using Doruč).
 * All classes .calc-* prefixed. Global theme (vars, fonts) comes from app.css.
 * Base = .calc; layout variants = .calc--card / .calc--split / .calc--gauge.
 * The gold slider fill is driven by the --calc-pct CSS var set in calculator.js.
 */

/* Stage wrapper used by the playground variant pages (centres the calc). */
.calc-stage {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 48px 20px;
}

.calc {
    position: relative;
    width: 100%;
    max-width: 720px;
    margin: 0 auto;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 36px;
}

.calc-eyebrow {
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    color: var(--gold);
    text-transform: uppercase;
    margin-bottom: 12px;
}

.calc-title {
    font-size: clamp(1.4rem, 3.5vw, 1.9rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--text);
}

.calc-title em {
    font-style: normal;
    background: linear-gradient(135deg, var(--gold) 0%, var(--gold-dark) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.calc-lead {
    margin-top: 8px;
    color: var(--muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ---- Slider control ---- */
.calc-control {
    margin: 28px 0;
}

.calc-control-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 14px;
}

.calc-control-label {
    font-size: 0.9rem;
    color: var(--muted);
    font-weight: 500;
}

.calc-readout {
    font-size: 1.7rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--gold) 0%, var(--gold-dark) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.calc-readout small {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--muted);
    -webkit-text-fill-color: var(--muted);
    margin-left: 4px;
}

.calc-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 10px;
    border-radius: 99px;
    background: linear-gradient(
        90deg,
        var(--gold) 0%,
        var(--gold-dark) var(--calc-pct, 50%),
        rgba(255, 255, 255, 0.08) var(--calc-pct, 50%),
        rgba(255, 255, 255, 0.08) 100%
    );
    outline: none;
    cursor: pointer;
    margin: 0;
}

.calc-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 28px;
    height: 28px;
    border-radius: 99px;
    background: radial-gradient(circle at 35% 30%, #fff7d6, var(--gold) 45%, var(--gold-dark) 100%);
    border: 2px solid #fffdf5;
    box-shadow: 0 4px 14px rgba(249, 231, 159, 0.5), 0 0 0 6px rgba(249, 231, 159, 0.12);
    cursor: grab;
    transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.calc-slider::-webkit-slider-thumb:hover { transform: scale(1.08); }
.calc-slider::-webkit-slider-thumb:active {
    cursor: grabbing;
    box-shadow: 0 4px 18px rgba(249, 231, 159, 0.7), 0 0 0 8px rgba(249, 231, 159, 0.18);
}
.calc-slider::-moz-range-thumb {
    width: 28px;
    height: 28px;
    border-radius: 99px;
    background: radial-gradient(circle at 35% 30%, #fff7d6, var(--gold) 45%, var(--gold-dark) 100%);
    border: 2px solid #fffdf5;
    box-shadow: 0 4px 14px rgba(249, 231, 159, 0.5), 0 0 0 6px rgba(249, 231, 159, 0.12);
    cursor: grab;
}
.calc-slider::-moz-range-track { background: transparent; }

.calc-scale {
    display: flex;
    justify-content: space-between;
    margin-top: 10px;
    font-size: 0.78rem;
    color: var(--light);
    font-variant-numeric: tabular-nums;
}

/* ---- Result tiles ---- */
.calc-results {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-top: 4px;
}

.calc-tile {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 16px;
}

.calc-tile-label {
    font-size: 0.78rem;
    color: var(--muted);
    line-height: 1.35;
}

.calc-tile-value {
    margin-top: 8px;
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text);
    font-variant-numeric: tabular-nums;
}

.calc-tile--cost .calc-tile-value { color: var(--light); }

/* ---- Net benefit block ---- */
.calc-net {
    margin-top: 22px;
    padding: 24px;
    border-radius: 18px;
    background: linear-gradient(135deg, rgba(249, 231, 159, 0.12), rgba(212, 172, 13, 0.06));
    border: 1px solid rgba(249, 231, 159, 0.25);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.calc-net-label {
    font-size: 0.92rem;
    color: var(--muted);
    font-weight: 500;
}

.calc-net-value {
    font-size: clamp(2rem, 6vw, 2.8rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1;
    background: linear-gradient(135deg, var(--gold) 0%, var(--gold-dark) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    font-variant-numeric: tabular-nums;
}

.calc-roi {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(249, 231, 159, 0.14);
    border: 1px solid rgba(249, 231, 159, 0.3);
    color: var(--gold);
    font-size: 0.8rem;
    font-weight: 700;
    padding: 5px 12px;
    border-radius: 99px;
}

.calc-fineprint {
    margin-top: 16px;
    font-size: 0.72rem;
    color: var(--light);
    line-height: 1.5;
}

/* ===========================================================
   VARIANT: split (controls left, gold profit panel right)
   =========================================================== */
.calc--split {
    max-width: 920px;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 0;
    padding: 0;
    overflow: hidden;
}
.calc--split .calc-split-controls { padding: 36px; }
.calc--split .calc-panel {
    padding: 36px;
    background: linear-gradient(160deg, rgba(249, 231, 159, 0.14), rgba(212, 172, 13, 0.05));
    border-left: 1px solid rgba(249, 231, 159, 0.2);
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 18px;
}
.calc--split .calc-panel-label { font-size: 0.9rem; color: var(--muted); }
.calc--split .calc-net-value { font-size: clamp(2.2rem, 7vw, 3.2rem); }
.calc--split .calc-breakdown {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 4px;
}
.calc-breakdown-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.86rem;
    color: var(--muted);
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
}
.calc-breakdown-row span:last-child {
    font-weight: 700;
    color: var(--text);
    font-variant-numeric: tabular-nums;
}
.calc-breakdown-row--cost span:last-child { color: var(--light); }

@media (max-width: 720px) {
    .calc--split { grid-template-columns: 1fr; }
    .calc--split .calc-panel { border-left: 0; border-top: 1px solid rgba(249, 231, 159, 0.2); }
}

/* ===========================================================
   VARIANT: gauge (huge number first, slider below, inline pills)
   =========================================================== */
.calc--gauge { text-align: center; }
.calc--gauge .calc-net-value {
    font-size: clamp(2.6rem, 10vw, 4.2rem);
    display: block;
    margin: 4px 0;
}
.calc--gauge .calc-net-label { display: block; margin-bottom: 4px; }
.calc--gauge .calc-net {
    background: none;
    border: 0;
    padding: 0;
    display: block;
    margin: 0 0 24px;
}
.calc--gauge .calc-pills {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
}
.calc-pill {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
    border-radius: 99px;
    padding: 8px 16px;
    font-size: 0.82rem;
    color: var(--muted);
    font-variant-numeric: tabular-nums;
}
.calc-pill strong { color: var(--text); font-weight: 700; }
.calc--gauge .calc-control { margin-bottom: 8px; }