@font-face {
  font-family: 'PP Neue Machina';
  src: url('/wp-content/uploads/fonts/PPNeueMachina-PlainLightItalic.woff') format('woff'),
       url('/wp-content/uploads/fonts/PPNeueMachina-PlainLightItalic.ttf') format('truetype');
  font-weight: normal; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'PP Neue Montreal Mono';
  src: url('/wp-content/uploads/fonts/PPNeueMontrealMono-Regular.woff') format('woff'),
       url('/wp-content/uploads/fonts/PPNeueMontrealMono-Regular.ttf') format('truetype');
  font-weight: normal; font-style: normal; font-display: swap;
}

/* ==========================================================================
   CSS Variables & Tokens
   Aesthetic aligned with aumbral.com (editorial / technical-mono identity)
   ========================================================================== */
.vam-calculator-app {
    /* Colors */
    --c-bg: #f5f4f0;
    --c-bg-panel: #ffffff;
    --c-bg-input: #f1efe9;
    --c-text: #1a1a1a;
    --c-text-muted: #555555;

    --c-border: #d0cfc8;
    --c-border-strong: #b8b6ae;

    --c-accent: #ed4044;       /* signature aumbral red — CTAs, primary actions */
    --c-accent-hover: #d6363a;
    --c-accent-light: rgba(237, 64, 68, 0.08);

    --c-highlight: #ed4044;    /* rojo de marca — stat callouts */
    --c-highlight-light: rgba(237, 64, 68, 0.08);

    --c-gravity: #ed4044;   /* Rojo marca */
    --c-rolling: #555555;   /* Gris oscuro */
    --c-aero: #a3a199;      /* Gris calido */
    --c-drivetrain: #1a1a1a; /* Casi negro */

    /* Typography — real PP Neue fonts load automatically once this page lives
       on aumbral.com (site-wide @font-face); these fallbacks keep it close
       when previewed standalone. */
    --font-display: 'PP Neue Machina', sans-serif;
    --font-sans: 'PP Neue Montreal Mono', monospace;
    --font-mono: 'PP Neue Montreal Mono', monospace;

    /* Spacing */
    --s-1: 0.25rem;
    --s-2: 0.5rem;
    --s-3: 0.75rem;
    --s-4: 1rem;
    --s-5: 1.25rem;
    --s-6: 1.5rem;
    --s-8: 2rem;
    --s-10: 2.5rem;

    /* Borders & Shadows */
    --radius-sm: 0;
    --radius-md: 0;
    --radius-lg: 0;
    --radius-full: 0;

    --shadow-panel: none;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   Reset & Base
   ========================================================================== */
.vam-calculator-app *,
.vam-calculator-app *::before,
.vam-calculator-app *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}


.vam-calculator-app {
    background-color: var(--c-bg);
    color: var(--c-text);
    font-family: var(--font-mono);
    line-height: 1.5;
    overflow-x: hidden;
    position: relative;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    border-radius: 0;
}

/* ==========================================================================
   Layout
   ========================================================================== */
.vam-calculator-app .header {
    text-align: center;
    margin-bottom: var(--s-8);
    margin-top: var(--s-6);
    display: flex;
    flex-direction: column;
    align-items: center;
    animation: fadeInDown 0.8s ease-out;
}

.vam-calculator-app .header__icon {
    width: 44px;
    height: 44px;
    margin-bottom: var(--s-3);
}

.vam-calculator-app .header__title {
    font-family: var(--font-display);
    font-style: italic;
    font-size: clamp(2.25rem, 6vw, 4rem);
    font-weight: 500;
    letter-spacing: -0.02em;
    line-height: 1.05;
    color: var(--c-text);
    margin-bottom: var(--s-3);
    text-transform: uppercase;
}

.vam-calculator-app .header__title--accent {
    color: var(--c-highlight);
}

.vam-calculator-app .header__byline {
    display: flex;
    align-items: center;
    gap: var(--s-2);
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--c-text-muted);
    margin-bottom: var(--s-4);
}

.vam-calculator-app .header__logo {
    height: 22px;
    width: auto;
}

.vam-calculator-app .header__subtitle {
    font-family: var(--font-sans);
    color: var(--c-text-muted);
    font-size: 1rem;
    max-width: 600px;
}

.vam-calculator-app .main {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--s-6);
    width: 100%;
    max-width: 1200px;
}

@media (min-width: 1024px) {
    .vam-calculator-app .main {
        grid-template-columns: 1fr 1fr;
        align-items: start;
    }
}

/* ==========================================================================
   Panels
   ========================================================================== */
.vam-calculator-app .panel {
    background: var(--c-bg-panel);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    padding: var(--s-6);
    box-shadow: var(--shadow-panel);
    animation: fadeInUp 0.8s ease-out backwards;
}

.vam-calculator-app .panel--inputs {
    animation-delay: 0.1s;
}

.vam-calculator-app .panel--results {
    animation-delay: 0.2s;
    position: sticky;
    top: var(--s-6);
}

/* ==========================================================================
   Input Groups — numbered sections, aumbral-style ("01 · TU PERFIL CICLISTA")
   ========================================================================== */
.vam-calculator-app .input-group {
    margin-bottom: var(--s-8);
}

.vam-calculator-app .input-group:last-child {
    margin-bottom: 0;
}

.vam-calculator-app .input-group--compact {
    margin-bottom: var(--s-4);
}

.vam-calculator-app .input-group__header {
    display: flex;
    align-items: center;
    gap: var(--s-3);
    margin-bottom: var(--s-4);
    padding-bottom: var(--s-3);
    border-bottom: 1px solid var(--c-border);
}

.vam-calculator-app .input-group__number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2rem;
    padding: 0.2rem 0.4rem;
    border: 1.5px solid var(--c-highlight);
    border-radius: var(--radius-sm);
    color: var(--c-highlight);
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.vam-calculator-app .input-group__divider {
    width: 1px;
    align-self: stretch;
    background: var(--c-border-strong);
    flex-shrink: 0;
}

.vam-calculator-app .input-group__title {
    font-family: var(--font-display);
    font-style: italic;
    font-size: 1.125rem;
    font-weight: 500;
    letter-spacing: 0.01em;
    text-transform: uppercase;
    color: var(--c-text);
}

.vam-calculator-app .input-group__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--s-4);
}

@media (min-width: 640px) {
    .vam-calculator-app .input-group__grid {
        grid-template-columns: 1fr 1fr;
    }
}

/* ==========================================================================
   Fields & Inputs
   ========================================================================== */
.vam-calculator-app .field {
    display: flex;
    flex-direction: column;
    gap: var(--s-2);
}

.vam-calculator-app .field--highlight {
    background: var(--c-highlight-light);
    padding: var(--s-3);
    border-radius: var(--radius-md);
    border: 1px solid rgba(237, 64, 68, 0.25);
}

.vam-calculator-app .field__label {
    font-family: var(--font-sans);
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--c-text-muted);
}

.vam-calculator-app .field--highlight .field__label {
    color: var(--c-text);
}

.vam-calculator-app .field__input-wrap {
    position: relative;
    display: flex;
    align-items: center;
}

.vam-calculator-app .field__input {
    width: 100%;
    background: var(--c-bg-input);
    border: 1px solid var(--c-border-strong);
    border-radius: var(--radius-sm);
    color: var(--c-text);
    font-family: var(--font-mono);
    font-size: 1rem;
    padding: var(--s-2) var(--s-3);
    padding-right: 2.5rem; /* Space for unit */
    transition: all var(--transition-fast);
}

.vam-calculator-app .field__input:focus {
    outline: none;
    border-color: var(--c-highlight);
    box-shadow: none;
}

.vam-calculator-app .field__input--hero {
    font-size: 1.5rem;
    font-weight: 700;
    padding: var(--s-3);
    padding-right: 3.5rem;
    background: var(--c-bg-panel);
    color: var(--c-highlight);
}

.vam-calculator-app .field__select {
    width: 100%;
    background: var(--c-bg-input);
    border: 1px solid var(--c-border-strong);
    border-radius: var(--radius-sm);
    color: var(--c-text);
    font-family: var(--font-sans);
    font-size: 0.875rem;
    padding: var(--s-2) var(--s-3);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2364748b'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
    cursor: pointer;
    transition: border-color var(--transition-fast);
}

.vam-calculator-app .field__select:focus {
    outline: none;
    border-color: var(--c-highlight);
}

.vam-calculator-app .field__unit {
    position: absolute;
    right: var(--s-3);
    color: var(--c-text-muted);
    font-size: 0.875rem;
    pointer-events: none;
}

.vam-calculator-app .field__hint {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    color: var(--c-text-muted);
    margin-top: -0.25rem;
}

/* Sliders */
.vam-calculator-app .field__slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 4px;
    background: var(--c-border-strong);
    border-radius: var(--radius-full);
    outline: none;
    margin-top: var(--s-2);
}

.vam-calculator-app .field__slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--c-text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.vam-calculator-app .field__slider::-webkit-slider-thumb:hover {
    background: var(--c-text);
    transform: scale(1.2);
}

.vam-calculator-app .field__slider--accent::-webkit-slider-thumb {
    background: var(--c-accent);
}

.vam-calculator-app .field__slider--accent::-webkit-slider-thumb:hover {
    background: var(--c-accent-hover);
}

/* ==========================================================================
   Reference Climbs
   ========================================================================== */
.vam-calculator-app .ref-climbs {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--s-2);
}

/* Tarjetas claras; !important blinda contra los estilos globales de botón
   del tema, que las pintaban de rojo con texto blanco */
.vam-calculator-app .ref-climb {
    background: var(--c-bg-panel) !important;
    border: 1px solid var(--c-border) !important;
    border-left: 3px solid var(--c-accent) !important;
    border-radius: 0 !important;
    box-shadow: none !important;
    padding: var(--s-2) var(--s-3) !important;
    color: var(--c-text) !important;
    font-family: var(--font-mono) !important;
    font-size: 0.8rem !important;
    letter-spacing: 0 !important;
    text-transform: none !important;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
    min-width: 0;
    text-align: left;
    transition: border-color var(--transition-fast), background var(--transition-fast);
}

.vam-calculator-app .ref-climb:hover {
    background: var(--c-bg-input) !important;
    border-color: var(--c-accent) !important;
    transform: none;
}

.vam-calculator-app .ref-climb__name {
    font-weight: 400;
    font-size: 0.85rem;
    color: var(--c-text) !important;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

.vam-calculator-app .ref-climb__info {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--c-text-muted) !important;
    white-space: nowrap;
}

/* ==========================================================================
   Results Hero
   ========================================================================== */
.vam-calculator-app .results-hero {
    display: flex;
    flex-direction: column;
    gap: var(--s-6);
    margin-bottom: var(--s-8);
}

@media (min-width: 640px) {
    .vam-calculator-app .results-hero {
        flex-direction: row;
        justify-content: space-between;
    }
}

.vam-calculator-app .results-hero__watts,
.vam-calculator-app .results-hero__wpkg {
    display: flex;
    flex-direction: column;
}

.vam-calculator-app .results-hero__label {
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    color: var(--c-text-muted);
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: var(--s-1);
}

.vam-calculator-app .results-hero__value-row {
    display: flex;
    align-items: baseline;
    gap: var(--s-2);
}

.vam-calculator-app .results-hero__number {
    font-family: var(--font-mono);
    font-size: clamp(3rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1;
    color: var(--c-highlight);
}

.vam-calculator-app .results-hero__unit {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--c-accent);
}

/* Level Badge */
.vam-calculator-app .level-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--s-2);
    background: var(--c-bg-input);
    padding: var(--s-1) var(--s-3);
    border-radius: var(--radius-sm);
    margin-top: var(--s-2);
    align-self: flex-start;
    border: 1px solid var(--c-border-strong);
}

.vam-calculator-app .level-badge__dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--c-text-muted); /* overridden by JS */
}

.vam-calculator-app .level-badge__text {
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    font-weight: 700;
    letter-spacing: 0.03em;
}

/* ==========================================================================
   Donut Chart
   ========================================================================== */
.vam-calculator-app .chart-section {
    background: var(--c-bg-input);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
    padding: var(--s-4);
    margin-bottom: var(--s-6);
}

.vam-calculator-app .chart-section__title {
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--c-text-muted);
    margin-bottom: var(--s-4);
    text-align: center;
}

.vam-calculator-app .chart-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--s-6);
}

@media (min-width: 480px) {
    .vam-calculator-app .chart-container {
        flex-direction: row;
        justify-content: center;
    }
}

.vam-calculator-app .donut-wrap {
    position: relative;
    width: 160px;
    height: 160px;
}

.vam-calculator-app .donut {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg); /* Start at top */
}

.vam-calculator-app .donut__bg {
    fill: none;
    stroke: var(--c-border);
    stroke-width: 20;
}

.vam-calculator-app .donut__segment {
    fill: none;
    stroke-width: 20;
    stroke-linecap: round;
    transition: stroke-dasharray 0.5s ease-out, stroke-dashoffset 0.5s ease-out;
}

.vam-calculator-app .donut__segment--gravity { stroke: var(--c-gravity); }
.vam-calculator-app .donut__segment--rolling { stroke: var(--c-rolling); }
.vam-calculator-app .donut__segment--aero { stroke: var(--c-aero); }
.vam-calculator-app .donut__segment--drivetrain { stroke: var(--c-drivetrain); }

.vam-calculator-app .donut__center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.vam-calculator-app .donut__center-value {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--c-gravity);
}

.vam-calculator-app .donut__center-label {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--c-text-muted);
}

.vam-calculator-app .chart-legend {
    display: flex;
    flex-direction: column;
    gap: var(--s-2);
}

.vam-calculator-app .chart-legend__item {
    display: flex;
    align-items: center;
    gap: var(--s-3);
    font-size: 0.875rem;
}

.vam-calculator-app .chart-legend__color {
    width: 12px;
    height: 12px;
    border-radius: 0;
}

.vam-calculator-app .chart-legend__color--gravity { background-color: var(--c-gravity); }
.vam-calculator-app .chart-legend__color--rolling { background-color: var(--c-rolling); }
.vam-calculator-app .chart-legend__color--aero { background-color: var(--c-aero); }
.vam-calculator-app .chart-legend__color--drivetrain { background-color: var(--c-drivetrain); }

.vam-calculator-app .chart-legend__name {
    font-family: var(--font-sans);
    color: var(--c-text-muted);
    width: 90px;
}

.vam-calculator-app .chart-legend__value {
    font-family: var(--font-mono);
    font-weight: 600;
}

/* ==========================================================================
   Metrics Grid
   ========================================================================== */
.vam-calculator-app .metrics-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--s-3);
    margin-bottom: var(--s-8);
}

.vam-calculator-app .metric-card {
    background: var(--c-bg-panel);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
    padding: var(--s-3);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.vam-calculator-app .metric-card__icon {
    font-size: 1.25rem;
    margin-bottom: var(--s-2);
}

.vam-calculator-app .metric-card__value {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--c-text);
}

.vam-calculator-app .metric-card__unit {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    color: var(--c-text-muted);
    margin-bottom: var(--s-1);
}

.vam-calculator-app .metric-card__label {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    color: var(--c-text-muted);
    line-height: 1.2;
}

/* ==========================================================================
   Section subtitles (GPX vs. manual entry explainer copy)
   ========================================================================== */
.vam-calculator-app .section-subtitle {
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    color: var(--c-text-muted);
    line-height: 1.4;
    margin-bottom: var(--s-3);
}

.vam-calculator-app .section-subtitle strong {
    color: var(--c-text);
}

.vam-calculator-app .section-subtitle--spaced {
    margin-top: var(--s-5);
}

/* ==========================================================================
   GPX Upload Area
   ========================================================================== */
.vam-calculator-app .gpx-upload {
    background: var(--c-bg-input);
    border: 2px dashed var(--c-border-strong);
    border-radius: var(--radius-md);
    padding: var(--s-6);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    margin-bottom: var(--s-4);
}

.vam-calculator-app .gpx-upload:hover,
.vam-calculator-app .gpx-upload.dragover {
    background: var(--c-accent-light);
    border-color: var(--c-accent);
}

.vam-calculator-app .gpx-upload__icon {
    font-size: 2.5rem;
    display: block;
    margin-bottom: var(--s-2);
}

.vam-calculator-app .gpx-upload__text {
    font-family: var(--font-sans);
    font-size: 1rem;
    color: var(--c-text);
    margin-bottom: var(--s-1);
}

.vam-calculator-app .gpx-upload__subtext {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    color: var(--c-text-muted);
}

.vam-calculator-app .gpx-status {
    display: flex;
    align-items: center;
    gap: var(--s-2);
    background: rgba(237, 64, 68, 0.08);
    border: 1px solid rgba(237, 64, 68, 0.3);
    border-radius: var(--radius-sm);
    padding: var(--s-2) var(--s-3);
    margin-top: calc(-1 * var(--s-2));
    margin-bottom: var(--s-4);
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    color: var(--c-text);
}

.vam-calculator-app .gpx-status__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--c-highlight);
    color: #ffffff;
    font-size: 0.75rem;
    font-weight: 700;
    flex-shrink: 0;
}

.vam-calculator-app .gpx-status__text {
    flex: 1;
}

.vam-calculator-app .gpx-status__text strong {
    color: var(--c-highlight);
}

.vam-calculator-app .gpx-status__dismiss {
    background: none;
    border: none;
    color: var(--c-text-muted);
    font-size: 1.125rem;
    line-height: 1;
    cursor: pointer;
    padding: 0 var(--s-1);
    flex-shrink: 0;
}

.vam-calculator-app .gpx-status__dismiss:hover {
    color: var(--c-text);
}

/* ==========================================================================
   Performance Scale
   ========================================================================== */
.vam-calculator-app .perf-scale {
    margin-bottom: var(--s-8);
}

.vam-calculator-app .perf-scale__title {
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--c-text-muted);
    margin-bottom: var(--s-3);
    text-align: center;
}

.vam-calculator-app .perf-scale__bar {
    height: 12px;
    border-radius: var(--radius-full);
    display: flex;
    overflow: hidden;
    position: relative;
    margin-bottom: var(--s-4);
    border: 1px solid var(--c-border-strong);
}

.vam-calculator-app .perf-scale__zone {
    height: 100%;
    position: relative;
}

.vam-calculator-app .perf-scale__zone:hover::after {
    content: attr(data-label) "\A" attr(data-range);
    white-space: pre;
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-8px);
    background: #292929;
    color: #fff;
    padding: 4px 8px;
    border-radius: 0;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    text-align: center;
    z-index: 10;
    pointer-events: none;
}

.vam-calculator-app .perf-scale__zone--rec { background: #d0cfc8; width: 15%; }
.vam-calculator-app .perf-scale__zone--ent { background: #a3a199; width: 20%; }
.vam-calculator-app .perf-scale__zone--ama { background: #7a7a7a; width: 20%; }
.vam-calculator-app .perf-scale__zone--str { background: #555555; width: 15%; }
.vam-calculator-app .perf-scale__zone--cat { background: #292929; width: 15%; }
.vam-calculator-app .perf-scale__zone--eli { background: #ed4044; width: 10%; }
.vam-calculator-app .perf-scale__zone--pro { background: #ed292b; border-left: 1px solid #f5f4f0; width: 5%; }

.vam-calculator-app .perf-scale__track {
    position: relative;
}

.vam-calculator-app .perf-scale__marker {
    position: absolute;
    bottom: 12px; /* sits right above the bar (bar height is 12px) */
    left: 0%;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: left 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
    transform: translateX(-50%);
    pointer-events: none;
}

.vam-calculator-app .perf-scale__marker-dot {
    width: 14px;
    height: 14px;
    background: var(--c-bg);
    border: 3px solid var(--c-text);
    border-radius: 50%;
    box-shadow: none;
    margin-top: 4px;
}

.vam-calculator-app .perf-scale__marker-label {
    background: #292929;
    color: #ffffff;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    white-space: nowrap;
}

/* ==========================================================================
   Formula Info
   ========================================================================== */
.vam-calculator-app .formula-info {
    background: var(--c-bg-panel);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.vam-calculator-app .formula-info__toggle {
    font-family: var(--font-sans);
    padding: var(--s-3);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    user-select: none;
    color: var(--c-text-muted);
}

.vam-calculator-app .formula-info__toggle:hover {
    color: var(--c-text);
    background: var(--c-bg-input);
}

.vam-calculator-app .formula-info__content {
    padding: var(--s-4);
    border-top: 1px solid var(--c-border);
    font-family: var(--font-sans);
    font-size: 0.875rem;
    color: var(--c-text-muted);
}

.vam-calculator-app .formula-info__content p {
    margin-bottom: var(--s-1);
}

.vam-calculator-app .formula-info__content code {
    display: block;
    font-family: var(--font-mono);
    background: var(--c-bg-input);
    border: 1px solid var(--c-border);
    padding: var(--s-2);
    border-radius: var(--radius-sm);
    margin-bottom: var(--s-3);
    color: var(--c-highlight);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.vam-calculator-app .footer {
    margin-top: var(--s-10);
    text-align: center;
    font-family: var(--font-sans);
    color: var(--c-text-muted);
    font-size: 0.875rem;
    max-width: 800px;
    padding: var(--s-4);
    opacity: 0.85;
}

/* ==========================================================================
   Animations
   ========================================================================== */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}