/* ═══════════════════════════════════════════════════
   FORINT KALKULÁTOR – Egyedi arany/borostyán téma
   Régi bankjegyek · Modern fintech esztétika
   ═══════════════════════════════════════════════════ */

:root {
  --bg:           #0B0800;
  --surface:      #141008;
  --surface2:     #1C160A;
  --surface3:     #231C0D;
  --border:       rgba(210,165,65,0.11);
  --border-hover: rgba(210,165,65,0.24);
  --accent:       #C9923A;
  --accent2:      #E5AA4A;
  --accent-glow:  rgba(201,146,58,0.18);
  --accent-soft:  rgba(201,146,58,0.10);
  --text:         #EFE7D5;
  --muted:        rgba(239,231,213,0.40);
  --muted2:       rgba(239,231,213,0.62);
  --success:      rgba(120,200,90,0.9);
  --t:            0.2s;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-weight: 300;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ── VISSZA GOMB ── */
.back {
  position: fixed;
  top: 1.25rem;
  left: 1.5rem;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--muted);
  text-decoration: none;
  transition: color var(--t);
  letter-spacing: 0.02em;
}
.back:hover { color: var(--text); }
.back svg { opacity: 0.6; transition: opacity var(--t); }
.back:hover svg { opacity: 1; }

/* ── HERO ── */
.hero {
  min-height: 52vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 7rem 1.5rem 4rem;
  text-align: center;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 65% 55% at 50% 58%, rgba(201,146,58,0.14) 0%, transparent 70%),
    radial-gradient(ellipse 35% 25% at 50% 90%, rgba(201,146,58,0.06) 0%, transparent 60%);
  pointer-events: none;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(201,146,58,0.08) 1px, transparent 1px);
  background-size: 26px 26px;
  -webkit-mask-image: radial-gradient(ellipse 58% 55% at 50% 50%, black 0%, transparent 72%);
  mask-image: radial-gradient(ellipse 58% 55% at 50% 50%, black 0%, transparent 72%);
  pointer-events: none;
}

/* Finoman csillogó sarokdíszek */
.hero::before,
.hero::after {
  content: '';
  position: absolute;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(229,170,74,0.07) 0%, transparent 70%);
  pointer-events: none;
}
.hero::before { top: 15%; left: 8%; }
.hero::after  { bottom: 20%; right: 8%; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent2);
  border: 1px solid rgba(229,170,74,0.28);
  border-radius: 50px;
  padding: 0.35rem 1rem;
  margin-bottom: 1.4rem;
  background: rgba(229,170,74,0.07);
  animation: fade-up 0.8s cubic-bezier(.16,1,.3,1) 0.3s both;
}

.badge-icon {
  font-size: 0.9rem;
  line-height: 1;
}

.hero h1 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(3.2rem, 10vw, 7rem);
  font-weight: 700;
  line-height: 0.92;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 1.25rem;
  animation: fade-up 0.9s cubic-bezier(.16,1,.3,1) 0.45s both;
}

.hero h1 .line1 {
  display: block;
  color: var(--accent2);
}

.hero h1 .line2 {
  display: block;
  font-style: italic;
  color: var(--text);
  font-size: 0.85em;
  opacity: 0.88;
}

.hero-subtitle {
  font-size: clamp(0.87rem, 2vw, 1rem);
  color: var(--muted);
  max-width: 420px;
  line-height: 1.75;
  animation: fade-up 0.9s cubic-bezier(.16,1,.3,1) 0.6s both;
}

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

/* ── MAIN CONTAINER ── */
main { padding-bottom: 5rem; }

.container {
  max-width: 680px;
  margin-inline: auto;
  padding: 0 1.5rem;
}

/* ── KÁRTYÁK ── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 28px 28px 26px;
  margin-bottom: 14px;
  animation: fade-up 0.65s cubic-bezier(.16,1,.3,1) both;
}
.card:nth-child(1) { animation-delay: 0.05s; }
.card:nth-child(2) { animation-delay: 0.15s; }
.card:nth-child(3) { animation-delay: 0.25s; }

.card-title {
  font-family: 'Playfair Display', serif;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 22px;
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.card-title-icon {
  color: var(--accent2);
  font-style: normal;
}

/* ── ÖSSZEG INPUT ── */
.field-label {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}

.amount-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.amount-wrap input[type="number"] {
  width: 100%;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 13px;
  padding: 13px 54px 13px 18px;
  color: var(--text);
  font-family: 'Playfair Display', serif;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  outline: none;
  transition: border-color var(--t), box-shadow var(--t);
  -moz-appearance: textfield;
}

.amount-wrap input[type="number"]::-webkit-outer-spin-button,
.amount-wrap input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
}

.amount-wrap input[type="number"]:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.amount-wrap input[type="number"]::placeholder { color: var(--muted); }

.amount-wrap input[type="number"].input-error {
  border-color: rgba(220,80,60,0.7);
  box-shadow: 0 0 0 3px rgba(220,80,60,0.12);
}

.amount-suffix {
  position: absolute;
  right: 16px;
  font-family: 'Playfair Display', serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
  pointer-events: none;
  user-select: none;
}

/* ── ÉV CSÚSZKÁK ── */
.years-section {
  margin-top: 24px;
}

.years-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 12px;
  align-items: start;
}

.year-col { min-width: 0; }

.year-badge {
  font-family: 'Playfair Display', serif;
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1;
  color: var(--accent2);
  margin-bottom: 6px;
  transition: color var(--t);
}

.year-rate {
  font-size: 0.72rem;
  color: var(--muted);
  min-height: 1.1em;
  margin-bottom: 10px;
  letter-spacing: 0.02em;
}

.year-col.to-col .year-badge {
  color: var(--accent);
  text-align: right;
}
.year-col.to-col .year-rate  { text-align: right; }
.year-col.to-col .field-label { text-align: right; }

/* Range slider */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  border-radius: 2px;
  background: var(--surface3);
  outline: none;
  cursor: pointer;
  accent-color: var(--accent);
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent2);
  border: 2px solid var(--bg);
  box-shadow: 0 0 0 2px var(--accent-glow);
  cursor: grab;
  transition: transform 0.15s ease, background var(--t);
}

input[type="range"]::-webkit-slider-thumb:active {
  cursor: grabbing;
  transform: scale(1.2);
  background: var(--accent);
}

input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent2);
  border: 2px solid var(--bg);
  cursor: grab;
}

.to-col input[type="range"]::-webkit-slider-thumb {
  background: var(--accent);
}
.to-col input[type="range"]::-moz-range-thumb {
  background: var(--accent);
}

/* Nyíl a két csúszka között */
.years-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 3rem;
  color: var(--muted);
  font-size: 1.1rem;
}

/* ── ELVÁLASZTÓ ── */
.divider {
  height: 1px;
  background: var(--border);
  margin: 24px 0;
}

/* ── EREDMÉNY KIJELZŐ ── */
.result-block {
  text-align: center;
  overflow: hidden;
}

.result-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}

.result-amount {
  display: block;
  overflow: hidden;
  margin-bottom: 10px;
  transition: font-size 0.15s ease;
}

.result-amount-inner {
  display: inline-block;
  white-space: nowrap;
  font-family: 'Playfair Display', serif;
  font-size: 3.8rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--accent2) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.result-eq {
  font-size: 0.82rem;
  color: var(--muted2);
  letter-spacing: 0.01em;
  min-height: 1.4em;
}

/* ── STATISZTIKÁK ── */
.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 24px;
}

.stat {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 13px;
  padding: 14px 10px;
  text-align: center;
}

.stat-value {
  font-family: 'Playfair Display', serif;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent2);
  line-height: 1;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  line-height: 1.3;
}

/* ── GRAFIKON ── */
.chart-head {
  margin-bottom: 6px;
}

.chart-head h2 {
  font-family: 'Playfair Display', serif;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}

.chart-head p {
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.5;
}

.chart-legend {
  display: flex;
  gap: 16px;
  margin: 10px 0 6px;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: var(--muted);
}

.legend-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.legend-dot.from { background: var(--accent2); }
.legend-dot.to   { background: var(--accent); }

.chart-svg {
  display: block;
  width: 100%;
  height: 220px;
  overflow: visible;
}

/* ── ADATFORRÁS KÁRTYA ── */
.source-card h2 {
  font-family: 'Playfair Display', serif;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 14px;
}

.source-block {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 13px;
  padding: 16px 18px;
  margin-bottom: 10px;
}

.source-block:last-child { margin-bottom: 0; }

.source-label {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 6px;
}

.source-block p {
  font-size: 0.82rem;
  color: var(--muted2);
  line-height: 1.65;
}

.source-block a {
  color: var(--accent2);
  text-decoration: none;
  border-bottom: 1px solid rgba(229,170,74,0.3);
  transition: border-color var(--t), color var(--t);
}

.source-block a:hover {
  color: var(--text);
  border-color: var(--text);
}

.tag-estimated {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(229,170,74,0.12);
  color: var(--accent2);
  border: 1px solid rgba(229,170,74,0.25);
  border-radius: 4px;
  padding: 1px 6px;
  vertical-align: middle;
  margin-left: 4px;
}

/* ── LÁBLÉC ── */
footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 2rem 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--muted);
}

footer a {
  color: var(--muted);
  text-decoration: none;
  transition: color var(--t);
}
footer a:hover { color: var(--text); }

/* ── RESZPONZÍV ── */
@media (max-width: 520px) {
  .container { padding: 0 1rem; }
  .hero { padding: 6rem 1rem 3rem; min-height: 48vh; }
  .card { padding: 22px 18px; }

  .years-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .years-arrow { display: none; }

  .year-col.to-col .year-badge,
  .year-col.to-col .year-rate,
  .year-col.to-col .field-label {
    text-align: left;
  }

  .stats-row {
    grid-template-columns: 1fr 1fr;
  }

  .stats-row .stat:last-child {
    grid-column: 1 / -1;
  }

  .result-amount { font-size: 2.2rem; }

  .chart-svg { height: 180px; }
}

@media (max-width: 360px) {
  .stats-row { grid-template-columns: 1fr; }
  .stats-row .stat:last-child { grid-column: auto; }
}