/* ============================================================
   Components — átomos e moléculas
   ============================================================ */

/* === HERO === */
.hero { display: flex; flex-direction: column; gap: var(--space-4); margin-bottom: var(--space-7); max-width: 760px; }
.hero__eyebrow {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-size: var(--step--2); letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--text-2); font-weight: 600;
}
.hero__eyebrow::before {
  content: ''; width: 28px; height: 1px; background: var(--accent-electric);
}
.hero__title {
  font-size: var(--step-5);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.02;
  max-width: 22ch;
}
.hero__title em {
  font-style: normal;
  background: linear-gradient(135deg, var(--accent-electric) 0%, var(--accent-savings) 100%);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}
.hero__lede { font-size: var(--step-0); color: var(--text-2); max-width: 54ch; }

/* === CARD === */
.card {
  position: relative;
  background: var(--bg-1);
  background-image: var(--grad-card);
  border: 1px solid var(--line-1);
  border-radius: var(--r-4);
  box-shadow: var(--shadow-2);
  padding: clamp(var(--space-5), 4vw, var(--space-7));
  overflow: hidden;
}
.card::after {
  content: ''; position: absolute; inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background: radial-gradient(60% 40% at 50% 0%, rgba(168, 150, 106, 0.06) 0%, transparent 60%);
  opacity: 0.7;
}

/* === STEPPER === */
.stepper {
  display: flex; align-items: center; gap: var(--space-3);
  margin-bottom: var(--space-6); flex-wrap: wrap;
  list-style: none; padding-left: 0;
}
.stepper li::marker { content: ''; }
.stepper__item {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-size: var(--step--1); color: var(--text-3);
  transition: color var(--d-base) var(--ease-out);
}
.stepper__dot {
  width: 22px; height: 22px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 700;
  background: var(--bg-3); color: var(--text-3);
  border: 1px solid var(--line-2);
  transition: all var(--d-base) var(--ease-out);
}
.stepper__item--active { color: var(--text-1); }
.stepper__item--active .stepper__dot {
  background: var(--accent-electric);
  border-color: var(--accent-electric);
  color: var(--mc-black);
  box-shadow: 0 0 0 4px rgba(168, 150, 106, 0.12);
}
.stepper__item--done .stepper__dot {
  background: var(--bg-3); color: var(--accent-electric);
  border-color: rgba(168, 150, 106, 0.5);
}
.stepper__divider { width: 24px; height: 1px; background: var(--line-2); }

/* === STEPS PANELS === */
.steps { position: relative; min-height: 320px; }
.step {
  position: absolute; inset: 0;
  opacity: 0; visibility: hidden;
  transform: translateY(12px);
  transition: opacity var(--d-base) var(--ease-out), transform var(--d-base) var(--ease-out), visibility 0s linear var(--d-base);
}
.step--active {
  opacity: 1; visibility: visible; transform: none;
  position: relative;
  transition: opacity var(--d-base) var(--ease-out), transform var(--d-base) var(--ease-out);
}
.step__header { display: flex; flex-direction: column; gap: var(--space-2); margin-bottom: var(--space-5); }
.step__title { font-size: var(--step-3); }
.step__hint { color: var(--text-2); font-size: var(--step-0); }

/* === FORM GRID === */
.field-grid { display: grid; gap: var(--space-4); grid-template-columns: 1fr; }
@media (min-width: 720px) { .field-grid--2 { grid-template-columns: 1fr 1fr; } }

/* === FIELD === */
.field { display: flex; flex-direction: column; gap: var(--space-2); }
.field__label {
  font-size: var(--step--1); color: var(--text-2); font-weight: 500;
  display: flex; align-items: center; gap: var(--space-2);
}
.field__hint { font-size: var(--step--2); color: var(--text-3); }
.field__error { font-size: var(--step--2); color: var(--accent-combustion); display: none; }
.field--error .field__error { display: block; }
.field--error .input { border-color: var(--accent-combustion); }

.input-wrap { position: relative; display: flex; align-items: stretch; }
.input-wrap__prefix, .input-wrap__suffix {
  position: absolute; top: 50%; transform: translateY(-50%);
  color: var(--text-3); font-size: var(--step--1); pointer-events: none;
  font-variant-numeric: tabular-nums;
}
.input-wrap__prefix { left: 16px; }
.input-wrap__suffix { right: 16px; }
.input-wrap--with-prefix .input { padding-left: 38px; }
.input-wrap--with-suffix .input { padding-right: 48px; }

.input, .select {
  width: 100%;
  height: 56px;
  padding: 0 var(--space-4);
  background: var(--bg-2);
  border: 1px solid var(--line-2);
  border-radius: var(--r-3);
  color: var(--text-1);
  font-size: var(--step-1);
  font-variant-numeric: tabular-nums;
  transition: border-color var(--d-fast) var(--ease-out),
              background var(--d-fast) var(--ease-out),
              box-shadow var(--d-fast) var(--ease-out);
}
.input::placeholder { color: var(--text-3); }
.input:hover, .select:hover { border-color: var(--line-3); }
.input:focus, .select:focus {
  outline: none;
  border-color: var(--accent-electric);
  background: var(--bg-2);
  box-shadow: 0 0 0 3px rgba(168, 150, 106, 0.12);
}
.select {
  appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8' fill='none'><path d='M1 1l5 5 5-5' stroke='%23B6B6C2' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/></svg>");
  background-repeat: no-repeat;
  background-position: right 18px center;
  padding-right: 44px;
}

/* === CHIPS === */
.chips { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.chip {
  padding: 8px 14px;
  border-radius: var(--r-pill);
  background: var(--bg-2);
  border: 1px solid var(--line-2);
  color: var(--text-2);
  font-size: var(--step--1);
  cursor: pointer;
  transition: all var(--d-fast) var(--ease-out);
}
.chip:hover { border-color: var(--line-3); color: var(--text-1); }
.chip[aria-pressed="true"] {
  background: var(--accent-electric);
  color: var(--mc-black);
  border-color: var(--accent-electric);
  font-weight: 600;
}

/* === BUTTONS === */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  height: 56px;
  padding: 0 var(--space-6);
  border-radius: var(--r-pill);
  font-weight: 600; font-size: var(--step-0);
  border: 1px solid transparent;
  transition: transform var(--d-fast) var(--ease-out),
              background var(--d-fast) var(--ease-out),
              box-shadow var(--d-fast) var(--ease-out),
              opacity var(--d-fast) var(--ease-out);
  white-space: nowrap;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn:not(:disabled):active { transform: translateY(1px); }
.btn__icon { width: 18px; height: 18px; }

.btn--primary { background: var(--accent-electric); color: var(--mc-black); }
.btn--primary:not(:disabled):hover { box-shadow: var(--glow-electric); }

.btn--ghost { background: var(--bg-2); color: var(--text-1); border-color: var(--line-2); }
.btn--ghost:not(:disabled):hover { background: var(--bg-3); border-color: var(--line-3); }

.btn--success { background: var(--accent-savings); color: var(--mc-black); }
.btn--success:not(:disabled):hover { box-shadow: var(--glow-savings); }

.btn--link { height: auto; padding: 0; background: none; color: var(--text-2); border: none; text-decoration: underline; text-underline-offset: 4px; }
.btn--link:hover { color: var(--text-1); }

/* Form actions */
.form-actions { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); margin-top: var(--space-6); flex-wrap: wrap; }
.form-actions__right { display: flex; gap: var(--space-3); }

/* === RESULT === */
.result { display: none; }
.result--visible { display: block; }

.result__hero {
  position: relative;
  text-align: left;
  padding-block: var(--space-7);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  align-items: center;
}
@media (min-width: 820px) {
  .result__hero--has-media { grid-template-columns: 1.45fr 1fr; }
}
.result__hero-content { min-width: 0; }
.result__hero-media {
  position: relative;
  display: none;
  align-items: center;
  justify-content: center;
  min-height: 260px;
}
.result__hero--has-media .result__hero-media { display: flex; }
.result__hero-media::before {
  content: '';
  position: absolute;
  left: 12%; right: 12%; bottom: 14%;
  height: 18px;
  background: radial-gradient(50% 100% at 50% 50%, rgba(168, 150, 106, 0.38) 0%, transparent 75%);
  filter: blur(14px);
  z-index: 0;
  pointer-events: none;
}
.result__hero-media img {
  position: relative;
  max-width: 100%; max-height: 320px;
  width: auto; height: auto;
  object-fit: contain;
  z-index: 1;
  filter: drop-shadow(0 18px 30px rgba(0, 0, 0, 0.5));
}
.result__eyebrow {
  font-size: var(--step--2); letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--accent-savings); font-weight: 600;
  display: inline-flex; align-items: center; gap: var(--space-2);
}
.result__eyebrow::before { content: ''; width: 28px; height: 1px; background: var(--accent-savings); }
.result__headline {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 1.3rem + 5.5vw, 5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 0.95;
  margin-top: var(--space-4);
}
.result__headline-value {
  display: block;
  background: linear-gradient(135deg, var(--accent-electric) 0%, var(--accent-savings) 100%);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
  font-variant-numeric: tabular-nums;
}
.result__headline-suffix { display: block; color: var(--text-1); font-size: 0.55em; font-weight: 700; margin-top: var(--space-3); }
.result__sub { color: var(--text-2); margin-top: var(--space-3); font-size: var(--step-1); max-width: 60ch; }

.result__grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
  margin-top: var(--space-7);
}
@media (min-width: 720px) { .result__grid { grid-template-columns: 1fr 1fr; } }

.kpi-card {
  position: relative;
  padding: var(--space-5);
  border-radius: var(--r-4);
  border: 1px solid var(--line-2);
  background: var(--bg-2);
  display: flex; flex-direction: column; gap: var(--space-3);
  overflow: hidden;
}
.kpi-card__icon { width: 44px; height: 44px; display: inline-flex; align-items: center; justify-content: center; border-radius: var(--r-2); background: var(--bg-3); color: var(--accent-electric); }
.kpi-card__icon svg { width: 22px; height: 22px; }
.kpi-card__label { font-size: var(--step--1); color: var(--text-2); text-transform: uppercase; letter-spacing: 0.08em; font-weight: 600; }
.kpi-card__value { font-family: var(--font-display); font-size: var(--step-5); font-weight: 800; letter-spacing: -0.025em; line-height: 1; font-variant-numeric: tabular-nums; }
.kpi-card__hint { font-size: var(--step--1); color: var(--text-3); }
.kpi-card--electric { border-color: rgba(168, 150, 106, 0.25); background: linear-gradient(180deg, rgba(168, 150, 106, 0.06) 0%, var(--bg-2) 100%); }
.kpi-card--electric .kpi-card__icon { background: rgba(168, 150, 106, 0.12); color: var(--accent-electric); }
.kpi-card--combustion { border-color: rgba(199, 107, 88, 0.20); }
.kpi-card--combustion .kpi-card__icon { background: rgba(199, 107, 88, 0.10); color: var(--accent-combustion-soft); }
.kpi-card--savings { border-color: rgba(201, 185, 140, 0.30); background: linear-gradient(180deg, rgba(201, 185, 140, 0.06) 0%, var(--bg-2) 100%); grid-column: 1 / -1; }
.kpi-card--savings .kpi-card__icon { background: rgba(201, 185, 140, 0.14); color: var(--accent-savings); }

/* Inline metric row inside a card */
.metric-row { display: flex; align-items: baseline; justify-content: space-between; gap: var(--space-3); padding-block: var(--space-2); }
.metric-row + .metric-row { border-top: 1px solid var(--line-1); }
.metric-row__label { font-size: var(--step--1); color: var(--text-2); }
.metric-row__value { font-size: var(--step-1); font-weight: 700; font-variant-numeric: tabular-nums; }

/* === CHART CARD === */
.chart-card {
  margin-top: var(--space-5);
  padding: var(--space-5);
  border-radius: var(--r-4);
  border: 1px solid var(--line-2);
  background: var(--bg-2);
}
.chart-card__header { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: var(--space-4); flex-wrap: wrap; gap: var(--space-2); }
.chart-card__title { font-size: var(--step-1); font-weight: 700; }
.chart-card__legend { display: flex; gap: var(--space-4); font-size: var(--step--1); color: var(--text-2); }
.chart-card__legend-item { display: inline-flex; align-items: center; gap: var(--space-2); }
.chart-card__legend-dot { width: 10px; height: 10px; border-radius: 50%; }
.chart-card__canvas-wrap { position: relative; height: 240px; }

/* === PROJECTION TABLE === */
.projection {
  margin-top: var(--space-5);
  padding: var(--space-5);
  border-radius: var(--r-4);
  border: 1px solid var(--line-2);
  background: var(--bg-2);
}
.projection__title { font-size: var(--step-1); font-weight: 700; margin-bottom: var(--space-4); }
.projection__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-3); }
@media (max-width: 640px) { .projection__grid { grid-template-columns: repeat(2, 1fr); } }
.projection__cell { padding: var(--space-4); border-radius: var(--r-3); background: var(--bg-1); border: 1px solid var(--line-1); }
.projection__cell-label { font-size: var(--step--2); color: var(--text-2); text-transform: uppercase; letter-spacing: 0.08em; }
.projection__cell-value { margin-top: var(--space-2); font-family: var(--font-display); font-size: var(--step-3); font-weight: 800; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; color: var(--accent-savings); }

/* === CTA STRIP === */
.cta-strip {
  margin-top: var(--space-7);
  padding: clamp(var(--space-5), 4vw, var(--space-7));
  border-radius: var(--r-4);
  background: linear-gradient(135deg, rgba(168, 150, 106, 0.08) 0%, rgba(201, 185, 140, 0.06) 100%);
  border: 1px solid rgba(168, 150, 106, 0.18);
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--space-5);
}
.cta-strip__content { max-width: 50ch; }
.cta-strip__title { font-size: var(--step-3); font-weight: 800; letter-spacing: -0.02em; }
.cta-strip__sub { color: var(--text-2); margin-top: var(--space-2); font-size: var(--step-0); }
.cta-strip__actions { display: flex; gap: var(--space-3); flex-wrap: wrap; }

/* === DISCLAIMER === */
.disclaimer {
  margin-top: var(--space-7);
  padding: var(--space-5);
  border-radius: var(--r-3);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--line-1);
  color: var(--text-3);
  font-size: var(--step--1);
  line-height: 1.65;
}
.disclaimer strong { color: var(--text-2); }

/* === SUMMARY (model recap) === */
.summary-pill {
  display: inline-flex; gap: var(--space-3); align-items: center;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--r-pill);
  background: var(--bg-2);
  border: 1px solid var(--line-2);
  font-size: var(--step--1);
  color: var(--text-2);
}
.summary-pill strong { color: var(--text-1); font-weight: 600; }

/* === LOADING / SKELETON / CALCULATING === */
.calculating {
  display: none;
  position: absolute; inset: 0;
  align-items: center; justify-content: center;
  background: var(--bg-overlay); backdrop-filter: blur(8px);
  border-radius: inherit; z-index: var(--z-elevated);
  font-size: var(--step--1); color: var(--text-2);
}
.calculating--visible { display: flex; }
.calculating__dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent-electric); margin-right: var(--space-2); animation: pulse 1s var(--ease-in-out) infinite; }