/* Kalkulačka nákladu faktúry 2026 */

:root {
  --accent: #FF7E00;
  --accent-strong: #C25E00;      /* text na svetlom pozadí – kontrast AA */
  --accent-soft: #FFF3E6;
  --bg: #F2F3F5;
  --panel: #FFFFFF;
  --panel-2: #F7F8FA;
  --text: #16181D;
  --muted: #5B6270;
  --border: #E1E4EA;
  --border-strong: #C9CED8;
  --hero-bg: #15171C;
  --hero-text: #FFFFFF;
  --hero-muted: #A9AFBB;
  --green-bg: #EAF7EF;
  --green-border: #B5E0C4;
  --green-text: #11683A;
  --red-bg: #FDECEC;
  --red-border: #F2B8B8;
  --red-text: #A1201E;
  --focus: #FF7E00;
  --shadow: 0 1px 2px rgba(16, 24, 40, .05), 0 8px 24px rgba(16, 24, 40, .06);
  --radius: 18px;
  --radius-sm: 12px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --accent-strong: #FFA54D;
    --accent-soft: #2D2116;
    --bg: #0F1114;
    --panel: #1A1D22;
    --panel-2: #22262C;
    --text: #EEF0F3;
    --muted: #A2A9B5;
    --border: #2E333B;
    --border-strong: #434A55;
    --hero-bg: #0A0B0D;
    --hero-muted: #9AA1AD;
    --green-bg: #12291C;
    --green-border: #275C3C;
    --green-text: #7FDCA2;
    --red-bg: #2E1517;
    --red-border: #6A2A2D;
    --red-text: #FFADA9;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .3);
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --accent-strong: #FFA54D;
  --accent-soft: #2D2116;
  --bg: #0F1114;
  --panel: #1A1D22;
  --panel-2: #22262C;
  --text: #EEF0F3;
  --muted: #A2A9B5;
  --border: #2E333B;
  --border-strong: #434A55;
  --hero-bg: #0A0B0D;
  --hero-muted: #9AA1AD;
  --green-bg: #12291C;
  --green-border: #275C3C;
  --green-text: #7FDCA2;
  --red-bg: #2E1517;
  --red-border: #6A2A2D;
  --red-text: #FFADA9;
  --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .3);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  font-variant-numeric: tabular-nums;
}

h1, h2, h3, p { margin: 0; }

.icon { flex: none; vertical-align: middle; }

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
  border-radius: 6px;
}

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap;
}

.skip {
  position: absolute; left: 16px; top: -60px;
  background: var(--panel); color: var(--text);
  padding: 8px 14px; border-radius: 8px; z-index: 10;
}
.skip:focus { top: 12px; }

[hidden] { display: none !important; }

/* --- Horná lišta --- */
.topbar { padding: 20px 16px 0; }
.topbar__inner {
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 14px; min-width: 0; }
.brand__mark {
  display: grid; place-items: center;
  width: 46px; height: 46px; border-radius: 14px;
  background: var(--accent); color: #fff; flex: none;
}
.brand h1 { font-size: clamp(1.15rem, 3.6vw, 1.55rem); line-height: 1.2; letter-spacing: -.01em; }
.brand p { color: var(--muted); font-size: .92rem; }
.topbar__actions { display: flex; align-items: center; gap: 10px; }

.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px; border-radius: 999px;
  font-size: .8rem; font-weight: 700; letter-spacing: .02em;
  background: rgba(255, 126, 0, .16); color: #FFB066;
}
.badge .icon { width: 15px; height: 15px; }
.badge--year { background: var(--accent-soft); color: var(--accent-strong); border: 1px solid rgba(255, 126, 0, .35); }

.theme-toggle {
  width: 42px; height: 42px; border-radius: 12px;
  border: 1px solid var(--border); background: var(--panel); color: var(--text);
  display: grid; place-items: center; cursor: pointer;
}
.theme-toggle:hover { border-color: var(--border-strong); }
.theme-toggle__sun { display: none; }
:root[data-theme="dark"] .theme-toggle__sun { display: inline; }
:root[data-theme="dark"] .theme-toggle__moon { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle__sun { display: inline; }
  :root:not([data-theme="light"]) .theme-toggle__moon { display: none; }
}

/* --- Rozloženie --- */
.layout {
  max-width: 1200px; margin: 20px auto 0; padding: 0 16px;
  display: grid; gap: 20px;
  grid-template-columns: minmax(0, 1fr);
}
@media (min-width: 960px) {
  .layout { grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); align-items: start; gap: 28px; }
  .side { position: sticky; top: 20px; }
}
.side { display: grid; gap: 20px; min-width: 0; }

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  min-width: 0;
}

/* --- Formulár --- */
.form { padding: 8px 24px 24px; }
@media (max-width: 420px) { .form { padding: 4px 16px 18px; } }

.section { padding: 20px 0; border-bottom: 1px solid var(--border); }
.section:last-of-type { border-bottom: 0; }
.section__title {
  display: flex; align-items: center; gap: 10px;
  font-size: 1.05rem; font-weight: 750; margin-bottom: 16px;
}
.section__title .icon { color: var(--accent); }

.field { margin: 0 0 18px; padding: 0; border: 0; min-width: 0; }
.field:last-child { margin-bottom: 0; }
.label { display: block; font-weight: 650; font-size: .95rem; margin-bottom: 8px; padding: 0; }
.help { color: var(--muted); font-size: .85rem; margin-top: 6px; }
.field-error {
  color: var(--red-text); font-size: .88rem; font-weight: 600; margin-top: 6px;
}
small { display: block; color: var(--muted); font-weight: 400; font-size: .82rem; }
.label small, .check small.nojs-hint { display: inline; }
.js .nojs-hint { display: none !important; }

/* Veľký vstup sumy */
.amount {
  display: flex; align-items: center;
  border: 2px solid var(--border-strong); border-radius: var(--radius-sm);
  background: var(--panel-2);
  transition: border-color .15s;
}
.amount:focus-within { border-color: var(--accent); box-shadow: 0 0 0 4px rgba(255, 126, 0, .18); }
.amount__input {
  flex: 1; min-width: 0;
  border: 0; background: transparent; color: var(--text);
  font: inherit; font-size: clamp(1.6rem, 6vw, 2.1rem); font-weight: 750; letter-spacing: -.01em;
  padding: 12px 14px; outline: none;
}
.amount__input[aria-invalid="true"] { color: var(--red-text); }
.amount:has([aria-invalid="true"]) { border-color: var(--red-text); }
.amount__unit {
  padding: 0 16px; font-weight: 750; color: var(--muted); font-size: 1rem; letter-spacing: .06em;
}

/* Segmentové prepínače (natívne radio) */
.segmented { display: grid; grid-auto-flow: column; grid-auto-columns: 1fr; gap: 6px;
  background: var(--panel-2); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 4px; }
.segmented--wrap { grid-auto-flow: row; grid-template-columns: repeat(3, 1fr) 2fr; }
@media (max-width: 520px) {
  .segmented--wrap { grid-template-columns: repeat(3, 1fr); }
  .segmented--wrap label:last-child { grid-column: 1 / -1; }
}
@media (max-width: 380px) {
  .segmented { grid-auto-flow: row; grid-auto-columns: auto; }
}
.segmented label { position: relative; display: block; cursor: pointer; }
.segmented input {
  position: absolute; inset: 0; opacity: 0; margin: 0; cursor: pointer;
}
.segmented span {
  display: flex; align-items: center; justify-content: center; text-align: center;
  min-height: 44px; padding: 8px 10px; border-radius: 9px;
  font-weight: 650; font-size: .92rem; color: var(--muted);
  transition: background .15s, color .15s;
}
.segmented label:hover span { color: var(--text); }
.segmented input:checked + span {
  background: var(--panel); color: var(--text);
  box-shadow: 0 1px 3px rgba(16, 24, 40, .14), inset 0 -2px 0 var(--accent);
}
.segmented input:focus-visible + span { outline: 3px solid var(--focus); outline-offset: 1px; }

/* Výberové karty */
.choices { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
@media (max-width: 360px) { .choices { grid-template-columns: 1fr; } }
.choice { position: relative; cursor: pointer; display: block; }
.choice input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.choice span {
  display: block; padding: 12px 14px; border-radius: var(--radius-sm);
  border: 2px solid var(--border); background: var(--panel);
}
.choice strong { display: block; font-size: 1rem; }
.choice input:checked + span { border-color: var(--accent); background: var(--accent-soft); }
.choice input:focus-visible + span { outline: 3px solid var(--focus); outline-offset: 2px; }

/* Zaškrtávacie polia */
.check { display: flex; gap: 12px; align-items: flex-start; cursor: pointer; font-weight: 600; }
.check input { width: 20px; height: 20px; margin: 2px 0 0; accent-color: var(--accent); flex: none; }

.select {
  width: 100%; min-height: 46px; padding: 10px 12px;
  font: inherit; color: var(--text); background: var(--panel-2);
  border: 2px solid var(--border-strong); border-radius: var(--radius-sm);
  accent-color: var(--accent);
}
.select[aria-invalid="true"] { border-color: var(--red-text); }

/* Doplňujúce nastavenia */
.more { border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--panel-2); }
.more summary {
  display: flex; align-items: center; gap: 10px; cursor: pointer;
  padding: 12px 14px; font-weight: 650; list-style: none; border-radius: var(--radius-sm);
}
.more summary::-webkit-details-marker { display: none; }
.more summary::after { content: "▾"; margin-left: auto; color: var(--muted); }
.more[open] summary::after { content: "▴"; }
.more summary .icon { color: var(--muted); }
.more__body { padding: 4px 14px 14px; }

/* Posuvník provízie */
.range-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.range-value {
  font-size: 1.5rem; font-weight: 800; color: var(--accent-strong); letter-spacing: -.01em;
}
.range { width: 100%; accent-color: var(--accent); height: 28px; margin: 6px 0 0; cursor: pointer; }
.range-scale { display: flex; justify-content: space-between; color: var(--muted); font-size: .8rem; }

.actions { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; padding-top: 4px; }
.btn {
  appearance: none; border: 0; cursor: pointer;
  background: var(--accent); color: #1A1100;
  font: inherit; font-weight: 750; font-size: 1rem;
  padding: 12px 22px; border-radius: 12px; min-height: 46px;
}
.btn:hover { filter: brightness(1.05); }
.actions__hint { color: var(--muted); font-size: .85rem; }

/* --- Výsledky --- */
.results { overflow: hidden; }
#results[aria-busy="true"] { opacity: .75; transition: opacity .2s .15s; }

.hero { background: var(--hero-bg); color: var(--hero-text); padding: 22px 24px 20px; }
.hero__top { display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; }
.hero__label { font-size: .95rem; font-weight: 650; color: var(--hero-muted); }
.hero__value {
  display: block; margin-top: 6px;
  font-size: clamp(2rem, 9vw, 3rem); font-weight: 800; letter-spacing: -.02em; line-height: 1.1;
  overflow-wrap: anywhere;
}
.hero__sub {
  margin-top: 14px; display: flex; justify-content: space-between; align-items: baseline; gap: 10px; flex-wrap: wrap;
  padding-top: 14px; border-top: 1px solid rgba(255, 255, 255, .12);
  color: var(--hero-muted); font-size: .92rem;
}
.hero__sub strong { color: #FFB066; font-size: 1.2rem; }
.hero__hint { color: var(--hero-muted); font-size: .8rem; margin-top: 8px; }

.result-body { padding: 8px 24px 24px; }
@media (max-width: 420px) {
  .hero { padding: 18px 16px; }
  .result-body { padding: 4px 16px 18px; }
}
.result-h {
  font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted);
  margin: 18px 0 4px;
}
.rows { margin: 0; }
.row {
  display: flex; justify-content: space-between; align-items: baseline; gap: 12px;
  padding: 10px 0; border-bottom: 1px solid var(--border);
}
.row:last-child { border-bottom: 0; }
.row dt { min-width: 0; }
.row dd { margin: 0; font-weight: 700; text-align: right; white-space: nowrap; }
.row__note { display: block; color: var(--muted); font-size: .8rem; }
.row--strong dd { font-size: 1.08rem; }
.row--muted dt, .row--muted dd { color: var(--muted); font-weight: 600; }
@media (max-width: 360px) {
  .row { flex-wrap: wrap; }
  .row dd { white-space: normal; }
}

.saving {
  margin-top: 16px; padding: 16px 18px;
  background: var(--green-bg); border: 1px solid var(--green-border); border-radius: var(--radius-sm);
  color: var(--green-text);
}
.saving__head { display: flex; align-items: center; gap: 8px; font-weight: 700; }
.saving__value { font-size: clamp(1.6rem, 6vw, 2rem); font-weight: 800; letter-spacing: -.01em; margin-top: 2px; overflow-wrap: anywhere; }
.saving__rate { font-size: .88rem; font-weight: 600; }

.net-commission {
  display: block; margin-top: 16px; padding: 16px 18px;
  background: var(--accent-soft); border-top: 4px solid var(--accent);
  border-radius: 4px 4px var(--radius-sm) var(--radius-sm);
}
.net-commission__label { display: block; font-weight: 700; }
.net-commission__value {
  display: block; font-size: clamp(1.8rem, 7vw, 2.4rem); font-weight: 800; letter-spacing: -.02em;
  color: var(--text); line-height: 1.2; margin-top: 2px; overflow-wrap: anywhere;
}
.net-commission__base { display: block; color: var(--muted); font-size: .88rem; font-weight: 600; margin-top: 4px; }

.notes { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 8px; }
.notes li { display: flex; gap: 8px; color: var(--muted); font-size: .86rem; }
.notes .icon { width: 17px; height: 17px; margin-top: 2px; }

.result-empty, .result-error {
  display: flex; gap: 12px; align-items: flex-start; padding: 28px 24px;
}
.result-empty { color: var(--muted); align-items: center; }
.result-empty .icon { width: 30px; height: 30px; color: var(--accent); }
.result-error { background: var(--red-bg); color: var(--red-text); border-bottom: 1px solid var(--red-border); }
.result-error__title { font-weight: 750; }
.result-error ul { margin: 6px 0 0; padding-left: 18px; }

.assumptions { padding: 20px 24px; }
@media (max-width: 420px) { .assumptions { padding: 16px; } }
.assumptions h2 { display: flex; align-items: center; gap: 8px; font-size: 1rem; margin-bottom: 8px; }
.assumptions h2 .icon { color: var(--muted); }
.assumptions ul { margin: 0; padding-left: 18px; color: var(--muted); font-size: .88rem; display: grid; gap: 4px; }
.disclaimer { margin-top: 10px; font-size: .8rem; color: var(--muted); }

.footer { text-align: center; color: var(--muted); font-size: .82rem; padding: 28px 16px 36px; }

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}