/* ========================================
   Field Service Software Cost Calculator
   Depends on styles.css for tokens/nav/footer
   ======================================== */

.calc-hero {
    padding: calc(var(--spacing-4xl) + 4rem) 0 var(--spacing-3xl);
    background:
        radial-gradient(900px 480px at 50% -10%, rgba(0, 212, 255, 0.14), transparent 70%),
        var(--color-darker);
    text-align: center;
}

.calc-eyebrow {
    display: inline-block;
    font-family: 'IBM Plex Mono', monospace;
    font-size: var(--font-size-xs);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--electric-blue);
    border: 1px solid rgba(0, 212, 255, 0.35);
    border-radius: 999px;
    padding: 0.4rem 0.9rem;
    margin-bottom: var(--spacing-lg);
}

.calc-hero h1 {
    font-size: clamp(2rem, 5vw, var(--font-size-5xl));
    line-height: 1.12;
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-lg);
    color: var(--color-white);
}

.calc-hero h1 span { color: var(--electric-blue); }

.calc-hero p {
    max-width: 60ch;
    margin: 0 auto;
    color: var(--color-gray-300);
    font-size: var(--font-size-lg);
    line-height: 1.65;
}

/* ---------- Calculator shell ---------- */

.calc-section { padding: var(--spacing-3xl) 0; background: var(--color-dark); }

.calc-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    gap: var(--spacing-2xl);
    align-items: start;
}

.calc-panel {
    background: linear-gradient(180deg, rgba(26, 31, 53, 0.9), rgba(10, 15, 30, 0.9));
    border: 1px solid var(--color-gray-800);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-xl);
}

.calc-panel h2 {
    font-size: var(--font-size-xl);
    color: var(--color-white);
    margin-bottom: var(--spacing-xs);
}

.calc-panel .calc-panel-sub {
    color: var(--color-gray-400);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-xl);
}

/* ---------- Inputs ---------- */

.calc-field { margin-bottom: var(--spacing-xl); }

.calc-field-head {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.calc-field label {
    font-weight: 600;
    color: var(--color-gray-200);
    font-size: var(--font-size-sm);
}

.calc-value {
    font-family: 'IBM Plex Mono', monospace;
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--electric-blue);
}

.calc-field input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 999px;
    background: var(--color-gray-800);
    outline: none;
}

.calc-field input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--electric-blue);
    border: 3px solid var(--color-darker);
    cursor: pointer;
    box-shadow: 0 0 0 4px var(--electric-blue-glow);
}

.calc-field input[type="range"]::-moz-range-thumb {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--electric-blue);
    border: 3px solid var(--color-darker);
    cursor: pointer;
}

.calc-hint {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
    margin-top: var(--spacing-sm);
    line-height: 1.5;
}

.calc-presets {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
}

.calc-preset {
    background: var(--color-gray-900);
    border: 1px solid var(--color-gray-700);
    color: var(--color-gray-300);
    border-radius: 999px;
    padding: 0.45rem 0.9rem;
    font-size: var(--font-size-xs);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast, 0.2s ease);
}

.calc-preset:hover { border-color: var(--electric-blue); color: var(--color-white); }

.calc-preset[aria-pressed="true"] {
    background: rgba(0, 212, 255, 0.12);
    border-color: var(--electric-blue);
    color: var(--electric-blue);
}

.calc-toggle {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    color: var(--color-gray-300);
    font-size: var(--font-size-sm);
    cursor: pointer;
    line-height: 1.5;
}

.calc-toggle input { margin-top: 0.25rem; accent-color: var(--electric-blue); width: 16px; height: 16px; }

/* ---------- Results ---------- */

.calc-result-hero {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
    border-bottom: 1px solid var(--color-gray-800);
    margin-bottom: var(--spacing-lg);
}

.calc-result-label {
    font-family: 'IBM Plex Mono', monospace;
    font-size: var(--font-size-xs);
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--color-gray-400);
    display: block;
    margin-bottom: var(--spacing-sm);
}

.calc-result-big {
    font-size: clamp(2.4rem, 7vw, 3.6rem);
    font-weight: 800;
    line-height: 1;
    letter-spacing: -0.03em;
    color: var(--color-white);
    font-variant-numeric: tabular-nums;
}

.calc-result-big.is-alarm { color: var(--color-warning); }

.calc-result-note { color: var(--color-gray-400); font-size: var(--font-size-sm); margin-top: var(--spacing-sm); }

.calc-breakdown { list-style: none; padding: 0; margin: 0 0 var(--spacing-lg); }

.calc-breakdown li {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: var(--spacing-md);
    padding: 0.7rem 0;
    border-bottom: 1px dashed var(--color-gray-800);
    font-size: var(--font-size-sm);
    color: var(--color-gray-300);
}

.calc-breakdown li:last-child { border-bottom: 0; }

.calc-breakdown .calc-num {
    font-family: 'IBM Plex Mono', monospace;
    font-weight: 600;
    color: var(--color-white);
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}

.calc-breakdown li.is-total {
    border-top: 1px solid var(--color-gray-700);
    margin-top: var(--spacing-sm);
    padding-top: var(--spacing-md);
    font-weight: 700;
    color: var(--color-white);
}

.calc-breakdown li.is-total .calc-num { color: var(--color-warning); font-size: var(--font-size-lg); }

.calc-swap {
    background: rgba(0, 212, 255, 0.07);
    border: 1px solid rgba(0, 212, 255, 0.28);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
}

.calc-swap h3 {
    font-size: var(--font-size-base);
    color: var(--electric-blue);
    margin-bottom: var(--spacing-sm);
}

.calc-swap p { color: var(--color-gray-300); font-size: var(--font-size-sm); line-height: 1.6; margin-bottom: var(--spacing-md); }

.calc-swap ul { margin: 0 0 var(--spacing-lg); padding-left: 1.1rem; color: var(--color-gray-300); font-size: var(--font-size-sm); line-height: 1.9; }

.calc-swap .btn { width: 100%; text-align: center; }

/* ---------- Sourced facts ---------- */

.calc-facts { padding: var(--spacing-3xl) 0; background: var(--color-darker); }

.calc-facts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.calc-fact {
    background: var(--color-gray-900);
    border: 1px solid var(--color-gray-800);
    border-left: 3px solid var(--color-warning);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
}

.calc-fact strong {
    display: block;
    font-size: var(--font-size-2xl);
    color: var(--color-white);
    font-variant-numeric: tabular-nums;
    margin-bottom: var(--spacing-xs);
}

.calc-fact p { color: var(--color-gray-400); font-size: var(--font-size-sm); line-height: 1.6; margin: 0; }

.calc-fact cite { display: block; margin-top: var(--spacing-sm); font-size: var(--font-size-xs); color: var(--color-gray-500); font-style: normal; }

.calc-fact cite a { color: var(--color-gray-400); }

/* ---------- FAQ ---------- */

.calc-faq { padding: var(--spacing-3xl) 0; background: var(--color-dark); }

.calc-faq-item {
    border-bottom: 1px solid var(--color-gray-800);
    padding: var(--spacing-lg) 0;
}

.calc-faq-item h3 { font-size: var(--font-size-lg); color: var(--color-white); margin-bottom: var(--spacing-sm); }
.calc-faq-item p { color: var(--color-gray-300); line-height: 1.7; margin: 0; }

/* ---------- Responsive ---------- */

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

@media (max-width: 640px) {
    .calc-hero { padding-top: calc(var(--spacing-3xl) + 3rem); }
    .calc-panel { padding: var(--spacing-lg); }
    .calc-breakdown li { font-size: var(--font-size-xs); }
}

/* Respect users who don't want motion */
@media (prefers-reduced-motion: reduce) {
    .calc-preset { transition: none; }
}