/*
  ============================================================
  styles.css — Calculadora de Independencia Financiera
  ============================================================
  Diseño para una herramienta financiera interactiva.
  La estética es "terminal financiero de alta precisión":
  fondo casi negro con tinte verde bosque profundo, acento
  verde esmeralda (#16C784 — el verde de los mercados en
  positivo), tipo monoespaciada IBM Plex Mono para números.

  NO es el estilo genérico "dark + acid green" que llevo
  en otras secciones. Aquí el verde es más oscuro y refinado,
  el layout tiene columnas de datos reales, y la firma visual
  son los sliders con fill animado que construyen un "cuadro
  de mando" financiero personal.

  Tokens de diseño:
  --bg:        #080E0A   (negro con tinte verde bosque)
  --surface:   #0D1610   (superficie de paneles)
  --surface-2: #132018   (cards y grupos)
  --border:    rgba(22, 199, 132, 0.12)
  --green:     #16C784   (acento principal — verde mercado)
  --green-dim: rgba(22, 199, 132, 0.10)
  --green-glow:rgba(22, 199, 132, 0.25)
  --amber:     #F59E0B   (acento secundario — alertas)
  --red:       #EF4444   (advertencias)
  --text-1:    #F0F7F2   (texto primario)
  --text-2:    #8FA899   (texto secundario)
  --text-3:    #4A6058   (texto muted)
  --mono:      'IBM Plex Mono', monospace
  --display:   'Syne', sans-serif
  --body:      'Inter', sans-serif

  Autor: Carlos Manuel Turizo Hernández
  Versión: 1.0.0
  ============================================================
*/

/* ============================================================
  RESET & TOKENS
  ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:         #080E0A;
  --surface:    #0D1610;
  --surface-2:  #132018;
  --surface-3:  #192B1F;
  --border:     rgba(22, 199, 132, 0.12);
  --border-2:   rgba(22, 199, 132, 0.24);

  --green:      #16C784;
  --green-lt:   #5DE4AE;
  --green-dim:  rgba(22, 199, 132, 0.08);
  --green-glow: rgba(22, 199, 132, 0.22);
  --amber:      #F59E0B;
  --amber-dim:  rgba(245, 158, 11, 0.10);
  --red:        #EF4444;
  --red-dim:    rgba(239, 68, 68, 0.10);

  --text-1:  #F0F7F2;
  --text-2:  #8FA899;
  --text-3:  #4A6058;

  --mono:    'IBM Plex Mono', monospace;
  --display: 'Syne', sans-serif;
  --body:    'Inter', sans-serif;

  --r-sm:   6px;
  --r-md:   12px;
  --r-lg:   18px;
  --r-xl:   24px;
  --r-full: 9999px;

  --shadow-panel: 0 1px 0 rgba(22,199,132,0.06) inset, 0 0 0 1px var(--border);

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text-1);
  font-family: var(--body);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: var(--body); border: none; background: none; }
input[type="range"] { appearance: none; -webkit-appearance: none; }

/* ============================================================
  SCROLLBAR PERSONALIZADO
  ============================================================ */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: rgba(22, 199, 132, 0.25); border-radius: var(--r-full); }
::-webkit-scrollbar-thumb:hover { background: rgba(22, 199, 132, 0.45); }


/* ============================================================
  HEADER
  ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(8, 14, 10, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.site-header__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 clamp(16px, 4vw, 32px);
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.site-header__back {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-2);
  transition: color 200ms ease;
}
.site-header__back:hover { color: var(--green); }
.site-header__brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-3);
  font-weight: 500;
  letter-spacing: 0.04em;
}
.site-header__dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--green);
  animation: dotPulse 2s ease-in-out infinite;
}
@keyframes dotPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.4; transform: scale(0.8); }
}
.site-header__share {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--green-dim);
  border: 1px solid var(--border-2);
  border-radius: var(--r-full);
  font-size: 12px;
  font-weight: 600;
  color: var(--green-lt);
  letter-spacing: 0.02em;
  transition: all 200ms ease;
}
.site-header__share:hover {
  background: rgba(22, 199, 132, 0.16);
  border-color: rgba(22, 199, 132, 0.45);
  box-shadow: 0 0 16px var(--green-glow);
}


/* ============================================================
  HERO
  ============================================================ */
.hero {
  position: relative;
  padding: clamp(60px, 12vw, 100px) clamp(16px, 4vw, 32px) clamp(50px, 8vw, 80px);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  overflow: hidden;
}
/* Cuadrícula de fondo muy sutil */
.hero__bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(22,199,132,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(22,199,132,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(to bottom, transparent, black 30%, black 70%, transparent);
  mask-image: linear-gradient(to bottom, transparent, black 30%, black 70%, transparent);
}
.hero__glow {
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 600px; height: 300px;
  background: radial-gradient(ellipse, rgba(22,199,132,0.10) 0%, transparent 70%);
  filter: blur(40px);
  pointer-events: none;
}
.hero__content {
  position: relative;
  z-index: 1;
  max-width: 680px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: var(--green-dim);
  border: 1px solid var(--border-2);
  border-radius: var(--r-full);
  font-size: 12px;
  font-weight: 500;
  color: var(--text-2);
  letter-spacing: 0.02em;
}
.hero__badge-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--green);
  flex-shrink: 0;
  animation: dotPulse 2s ease-in-out infinite;
}
.hero__title {
  font-family: var(--display);
  font-size: clamp(2.6rem, 7vw, 4.8rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--text-1);
}
.hero__title-free {
  color: transparent;
  background: linear-gradient(135deg, var(--green-lt) 0%, var(--green) 60%, #0FA866 100%);
  -webkit-background-clip: text;
  background-clip: text;
}
.hero__subtitle {
  font-size: clamp(15px, 2vw, 17px);
  line-height: 1.75;
  color: var(--text-2);
  max-width: 540px;
}
.hero__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  background: var(--green);
  color: #061A0E;
  font-weight: 700;
  font-size: 14px;
  border-radius: var(--r-full);
  box-shadow: 0 4px 20px var(--green-glow);
  transition: all 220ms ease;
}
.hero__cta:hover {
  background: var(--green-lt);
  box-shadow: 0 6px 28px rgba(22,199,132,0.4);
  transform: translateY(-2px);
}


/* ============================================================
  CALCULADORA — LAYOUT
  ============================================================ */
.calculator {
  max-width: 1200px;
  margin: 0 auto;
  padding: clamp(16px, 3vw, 32px) clamp(12px, 3vw, 24px) clamp(40px, 6vw, 64px);
}
.calculator__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
@media (min-width: 900px) {
  .calculator__inner {
    grid-template-columns: 420px 1fr;
    gap: 24px;
    align-items: start;
  }
}
@media (min-width: 1100px) {
  .calculator__inner { grid-template-columns: 460px 1fr; }
}

/* Panel base */
.calculator__panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  overflow: hidden;
}
.calculator__panel--inputs {
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: sticky;
  top: 72px;
}
.calculator__panel--results {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}


/* ============================================================
  PANEL DE INPUTS
  ============================================================ */
.calc-panel-header__title {
  font-family: var(--display);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-1);
}
.calc-panel-header__sub { font-size: 12px; color: var(--text-3); margin-top: 2px; }

/* Selector de moneda */
.currency-selector {
  display: flex;
  gap: 6px;
  padding: 4px;
  background: var(--surface-2);
  border-radius: var(--r-md);
  width: fit-content;
}
.currency-btn {
  padding: 5px 14px;
  border-radius: var(--r-sm);
  font-size: 12px;
  font-weight: 600;
  color: var(--text-3);
  transition: all 180ms ease;
}
.currency-btn--active, .currency-btn:hover {
  background: var(--green-dim);
  color: var(--green-lt);
}
.currency-btn--active { box-shadow: 0 0 0 1px var(--border-2); }

/* Grupos de input */
.input-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.input-group__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.input-group__label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-2);
  cursor: default;
}
.input-group__info {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 18px; height: 18px;
  border-radius: 50%;
  color: var(--text-3);
  transition: color 180ms ease;
  flex-shrink: 0;
}
.input-group__info:hover { color: var(--green); }

.input-group__value {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--green-lt);
  white-space: nowrap;
  flex-shrink: 0;
}

/* SLIDER — el elemento más trabajado del UI */
.slider-track {
  position: relative;
  height: 20px;
  display: flex;
  align-items: center;
}
.slider {
  width: 100%;
  height: 4px;
  background: rgba(22,199,132,0.10);
  border-radius: var(--r-full);
  outline: none;
  position: relative;
  z-index: 2;
  cursor: grab;
}
.slider:active { cursor: grabbing; }

/* Fill visual del slider (JS lo actualiza) */
.slider-fill {
  position: absolute;
  left: 0; top: 50%;
  height: 4px;
  transform: translateY(-50%);
  background: linear-gradient(90deg, var(--green), var(--green-lt));
  border-radius: var(--r-full);
  pointer-events: none;
  z-index: 1;
  transition: width 30ms linear;
}

/* Thumb del slider */
.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--green);
  border: 3px solid var(--bg);
  box-shadow: 0 0 0 2px var(--green), 0 0 12px var(--green-glow);
  cursor: grab;
  transition: transform 180ms var(--ease-spring), box-shadow 180ms ease;
  position: relative;
  z-index: 3;
}
.slider::-webkit-slider-thumb:active {
  cursor: grabbing;
  transform: scale(1.25);
  box-shadow: 0 0 0 2px var(--green-lt), 0 0 20px rgba(22,199,132,0.5);
}
.slider::-moz-range-thumb {
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--green);
  border: 3px solid var(--bg);
  box-shadow: 0 0 0 2px var(--green), 0 0 12px var(--green-glow);
  cursor: grab;
}

/* Labels del slider */
.slider-labels {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  color: var(--text-3);
  font-family: var(--mono);
  letter-spacing: 0.02em;
}

/* Botones de escenario */
.scenario-btns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}
.scenario-btn {
  padding: 8px 6px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  font-size: 10px;
  color: var(--text-3);
  text-align: center;
  line-height: 1.4;
  transition: all 180ms ease;
}
.scenario-btn strong { font-family: var(--mono); font-size: 12px; color: var(--text-2); }
.scenario-btn--active,
.scenario-btn:hover {
  background: var(--green-dim);
  border-color: var(--border-2);
  color: var(--text-2);
}
.scenario-btn--active strong, .scenario-btn:hover strong { color: var(--green-lt); }

/* Nota metodológica */
.calc-note {
  font-size: 11px;
  line-height: 1.6;
  color: var(--text-3);
  padding: 12px 14px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
}
.calc-note strong { color: var(--text-2); }


/* ============================================================
  KPIs
  ============================================================ */
.kpis {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* KPI principal — el "número" de la libertad */
.kpi--hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 20px 16px 16px;
  background: var(--green-dim);
  border: 1px solid var(--border-2);
  border-radius: var(--r-lg);
  gap: 6px;
}
.kpi--hero .kpi__label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--green);
}
.kpi--hero .kpi__value {
  display: flex;
  align-items: baseline;
  gap: 6px;
}
.kpi--hero .kpi__number {
  font-family: var(--mono);
  font-size: clamp(3rem, 8vw, 4.5rem);
  font-weight: 600;
  color: var(--green-lt);
  line-height: 1;
  letter-spacing: -0.02em;
  transition: all 400ms var(--ease-out);
}
.kpi--hero .kpi__unit {
  font-family: var(--mono);
  font-size: 1.2rem;
  color: var(--green);
  opacity: 0.7;
}
.kpi--hero .kpi__age {
  font-size: 13px;
  color: var(--text-2);
  font-weight: 500;
}

/* KPIs secundarios */
.kpis__secondary {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.kpi--secondary {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
}
.kpi__label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-3);
}
.kpi__value--mono {
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 600;
  color: var(--text-1);
  transition: all 350ms ease;
}
.kpi__sub { font-size: 10px; color: var(--text-3); }


/* ============================================================
  GRÁFICO DE PROYECCIÓN
  ============================================================ */
.chart-section {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.chart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}
.chart-header__title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-2);
}
.chart-legend {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.chart-legend__item {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-3);
  display: flex;
  align-items: center;
  gap: 5px;
}
.chart-legend__item::before {
  content: '';
  width: 20px; height: 2px;
  border-radius: 1px;
  flex-shrink: 0;
}
.chart-legend__item--growth::before { background: var(--green); }
.chart-legend__item--contributions::before { background: rgba(22,199,132,0.35); }
.chart-legend__item--target::before {
  background: var(--amber);
  height: 0;
  border-top: 2px dashed var(--amber);
}

.chart-wrap {
  position: relative;
  width: 100%;
  height: clamp(180px, 30vw, 280px);
}
#projectionChart {
  width: 100%;
  height: 100%;
  display: block;
}

/* Tooltip del gráfico */
.chart-tooltip {
  position: absolute;
  background: var(--surface);
  border: 1px solid var(--border-2);
  border-radius: var(--r-md);
  padding: 10px 12px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 150ms ease;
  font-size: 11px;
  min-width: 130px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.4);
  display: flex;
  flex-direction: column;
  gap: 4px;
  z-index: 10;
}
.chart-tooltip.visible { opacity: 1; }
.chart-tooltip__year {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-3);
}
.chart-tooltip__value {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--green-lt);
}
.chart-tooltip__contribs {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-3);
}


/* ============================================================
  HITOS DE PROGRESO
  ============================================================ */
.milestones {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 20px;
}
.milestones__title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-2);
  margin-bottom: 16px;
}
.milestones__track {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  padding-left: 20px;
}
/* Línea vertical del track */
.milestones__track::before {
  content: '';
  position: absolute;
  left: 5px; top: 10px; bottom: 10px;
  width: 1px;
  background: var(--border);
}

.milestone {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 0;
  position: relative;
  transition: all 300ms ease;
}
.milestone__dot {
  position: absolute;
  left: -20px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--surface-3);
  border: 2px solid var(--text-3);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 400ms var(--ease-spring);
}
/* Hito alcanzado */
.milestone--reached .milestone__dot {
  background: var(--green);
  border-color: var(--green);
  box-shadow: 0 0 10px var(--green-glow);
}
.milestone--goal .milestone__dot {
  width: 16px; height: 16px;
  left: -22px;
}
.milestone--goal.milestone--reached .milestone__dot {
  background: var(--green);
  border-color: var(--green-lt);
  box-shadow: 0 0 16px rgba(22,199,132,0.5);
}
.milestone__info {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.milestone__pct {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--text-3);
  min-width: 34px;
}
.milestone--reached .milestone__pct { color: var(--green); }
.milestone__name {
  font-size: 12px;
  color: var(--text-2);
  flex: 1;
}
.milestone__when {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-3);
  margin-left: auto;
}
.milestone--reached .milestone__when { color: var(--green-lt); }


/* ============================================================
  INSIGHTS PERSONALIZADOS
  ============================================================ */
.insights {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 20px;
}
.insights__title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-2);
  margin-bottom: 14px;
}
.insights__list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.insight {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 10px 12px;
  border-radius: var(--r-md);
  font-size: 12px;
  line-height: 1.6;
  color: var(--text-2);
  animation: insightIn 300ms var(--ease-out) both;
}
@keyframes insightIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}
.insight--good {
  background: var(--green-dim);
  border: 1px solid rgba(22,199,132,0.15);
}
.insight--warn {
  background: var(--amber-dim);
  border: 1px solid rgba(245,158,11,0.15);
}
.insight--info {
  background: var(--surface-3);
  border: 1px solid var(--border);
}
.insight__icon {
  font-size: 14px;
  flex-shrink: 0;
  margin-top: 1px;
}
.insight strong { color: var(--text-1); }


/* ============================================================
  SECCIÓN EDUCATIVA
  ============================================================ */
.explainer {
  padding: clamp(40px, 6vw, 80px) clamp(16px, 4vw, 32px);
  background: var(--surface);
  border-top: 1px solid var(--border);
}
.explainer__inner {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 40px;
}
.explainer__eyebrow {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 8px;
}
.explainer__title {
  font-family: var(--display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-1);
  line-height: 1.2;
}
.explainer__cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
@media (min-width: 700px) {
  .explainer__cards { grid-template-columns: repeat(3, 1fr); }
}
.explainer-card {
  padding: 24px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: border-color 200ms ease, transform 300ms var(--ease-out);
}
.explainer-card:hover {
  border-color: var(--border-2);
  transform: translateY(-3px);
}
.explainer-card__num {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  color: var(--green);
  letter-spacing: 0.06em;
}
.explainer-card__title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-1);
  line-height: 1.3;
}
.explainer-card__desc {
  font-size: 13px;
  line-height: 1.75;
  color: var(--text-2);
  flex: 1;
}
.explainer-card__formula {
  font-family: var(--mono);
  font-size: 12px;
  padding: 10px 14px;
  background: rgba(22,199,132,0.05);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  color: var(--green-lt);
  letter-spacing: 0.01em;
}

/* Disclaimer */
.disclaimer {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px 18px;
  background: rgba(245,158,11,0.06);
  border: 1px solid rgba(245,158,11,0.14);
  border-radius: var(--r-md);
  color: var(--text-3);
  font-size: 12px;
  line-height: 1.7;
}
.disclaimer svg { color: var(--amber); flex-shrink: 0; margin-top: 2px; }


/* ============================================================
  CTA FOOTER
  ============================================================ */
.cta-footer {
  padding: 40px clamp(16px, 4vw, 32px);
  border-top: 1px solid var(--border);
}
.cta-footer__inner {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.cta-footer__text {
  font-size: 15px;
  color: var(--text-2);
  font-style: italic;
}
.cta-footer__link {
  font-size: 13px;
  font-weight: 600;
  color: var(--green);
  transition: color 200ms ease;
}
.cta-footer__link:hover { color: var(--green-lt); }


/* ============================================================
  TOOLTIP FLOTANTE
  ============================================================ */
.floating-tip {
  position: fixed;
  z-index: 1000;
  background: var(--surface);
  border: 1px solid var(--border-2);
  border-radius: var(--r-md);
  padding: 10px 14px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--text-2);
  max-width: 240px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.5);
  pointer-events: none;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 180ms ease, transform 180ms ease;
  backdrop-filter: blur(12px);
}
.floating-tip.visible {
  opacity: 1;
  transform: translateY(0);
}
.floating-tip__arrow {
  position: absolute;
  bottom: -5px; left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 8px; height: 8px;
  background: var(--surface);
  border-right: 1px solid var(--border-2);
  border-bottom: 1px solid var(--border-2);
}


/* ============================================================
  TOAST
  ============================================================ */
.toast {
  position: fixed;
  bottom: 24px; left: 50%;
  transform: translateX(-50%) translateY(80px);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  background: var(--green);
  color: #061A0E;
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--r-full);
  box-shadow: 0 8px 24px rgba(22,199,132,0.4);
  transition: transform 400ms var(--ease-spring);
  z-index: 999;
  pointer-events: none;
}
.toast.show {
  transform: translateX(-50%) translateY(0);
}


/* ============================================================
  ESTADO ESPECIAL: Gastos > Ingresos
  ============================================================ */
.calculator__panel--inputs.state-deficit .input-group__value {
  /* nada extra aquí, el insight lo comunica */
}
#kpi-years.is-infinite .kpi__number {
  color: var(--red);
  font-size: 2.5rem;
}


/* ============================================================
  RESPONSIVE
  ============================================================ */
@media (max-width: 640px) {
  .site-header__brand { display: none; }
  .calculator__panel--inputs { padding: 20px 16px; gap: 20px; position: static; }
  .calculator__panel--results { padding: 16px; }
  .kpis__secondary { grid-template-columns: 1fr 1fr; }
  .kpi--hero .kpi__number { font-size: 3rem; }
  .milestones__info { flex-wrap: wrap; gap: 6px; }
  .milestone__when { margin-left: 0; }
  .explainer-card { padding: 18px 16px; }
  .cta-footer__inner { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 380px) {
  .kpis__secondary { grid-template-columns: 1fr; }
  .hero__title { font-size: 2rem; }
}

/* Focus visible para teclado */
:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}