/*
Theme Name: Unit Economics Calculator
Theme URI: https://example.com
Author: 
Author URI: 
Description: Простой одностраничный калькулятор юнит-экономики. Добавляйте блоки "Канал", заполняйте данные — отчёт по каждому каналу и в целом считается автоматически.
Version: 1.0
Requires at least: 5.5
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: unit-economics-calculator
*/

/* ---------------------------------------------
   Tokens
--------------------------------------------- */
:root {
  --uec-bg: #F4F5F7;
  --uec-card: #FFFFFF;
  --uec-border: #E1E4E9;
  --uec-text: #1B1F27;
  --uec-text-muted: #6B7280;
  --uec-accent: #1F6F4E;
  --uec-accent-dark: #16523A;
  --uec-accent-soft: #E7F3ED;
  --uec-negative: #C0362C;
  --uec-negative-soft: #FBEAE8;
  --uec-radius: 10px;
  --uec-radius-sm: 6px;
  --uec-max-width: 760px;
  --uec-shadow: 0 1px 2px rgba(20, 24, 32, 0.04), 0 1px 12px rgba(20, 24, 32, 0.03);
  font-size: 16px;
}

/* ---------------------------------------------
   Reset & base
--------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--uec-bg);
  color: var(--uec-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { margin: 0; font-weight: 700; letter-spacing: -0.01em; }

p { margin: 0 0 1em; }

button {
  font-family: inherit;
  cursor: pointer;
}

input:focus-visible,
button:focus-visible {
  outline: 2px solid var(--uec-accent);
  outline-offset: 2px;
}

/* ---------------------------------------------
   Layout shell — content stays centered so the
   left/right margins remain free for ad banners
--------------------------------------------- */
.uec-page {
  min-height: 100vh;
  padding: 0 24px;
}

.uec-container {
  max-width: var(--uec-max-width);
  margin: 0 auto;
  padding: 48px 0 80px;
}

/* ---------------------------------------------
   Header
--------------------------------------------- */
.uec-header {
  text-align: center;
  margin-bottom: 40px;
}

.uec-header__eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--uec-accent);
  background: var(--uec-accent-soft);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 14px;
}

.uec-header h1 {
  font-size: 1.9rem;
  margin-bottom: 10px;
}

.uec-header p {
  color: var(--uec-text-muted);
  font-size: 1rem;
  max-width: 520px;
  margin: 0 auto;
}

/* ---------------------------------------------
   Channel cards
--------------------------------------------- */
.uec-channels {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.channel-card {
  background: var(--uec-card);
  border: 1px solid var(--uec-border);
  border-left: 3px solid var(--uec-accent);
  border-radius: var(--uec-radius);
  box-shadow: var(--uec-shadow);
  padding: 20px 22px 22px;
}

.channel-card__header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.channel-card__index {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--uec-text-muted);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.channel-card__name {
  flex: 1;
  border: none;
  border-bottom: 1px solid transparent;
  background: transparent;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--uec-text);
  padding: 4px 2px;
  min-width: 0;
}

.channel-card__name:hover,
.channel-card__name:focus {
  border-bottom-color: var(--uec-border);
}

.channel-card__remove {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border: 1px solid var(--uec-border);
  background: var(--uec-card);
  border-radius: var(--uec-radius-sm);
  color: var(--uec-text-muted);
  font-size: 0.9rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .15s ease, color .15s ease, border-color .15s ease;
}

.channel-card__remove:hover {
  background: var(--uec-negative-soft);
  border-color: var(--uec-negative);
  color: var(--uec-negative);
}

.channel-card__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px 16px;
  margin-bottom: 18px;
}

.channel-card__grid label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.82rem;
  color: var(--uec-text-muted);
}

.channel-card__grid input {
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--uec-text);
  padding: 9px 10px;
  border: 1px solid var(--uec-border);
  border-radius: var(--uec-radius-sm);
  background: #FCFCFD;
}

.channel-card__grid input:focus {
  background: #fff;
  border-color: var(--uec-accent);
}

.channel-card__results {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  border-top: 1px dashed var(--uec-border);
  padding-top: 16px;
}

.channel-card__results > div {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.channel-card__results span {
  font-size: 0.72rem;
  color: var(--uec-text-muted);
}

.channel-card__results strong {
  font-size: 1rem;
  font-variant-numeric: tabular-nums;
}

.is-negative { color: var(--uec-negative) !important; }

/* ---------------------------------------------
   Add channel button
--------------------------------------------- */
.uec-add-row {
  display: flex;
  justify-content: center;
  margin: 20px 0 8px;
}

.uec-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px dashed var(--uec-border);
  background: transparent;
  color: var(--uec-accent);
  font-weight: 600;
  font-size: 0.92rem;
  padding: 11px 20px;
  border-radius: var(--uec-radius-sm);
  transition: background .15s ease, border-color .15s ease;
}

.uec-btn:hover {
  background: var(--uec-accent-soft);
  border-color: var(--uec-accent);
  border-style: solid;
}

/* ---------------------------------------------
   Report
--------------------------------------------- */
.uec-report {
  margin-top: 44px;
}

.uec-report.is-hidden,
.uec-empty-state.is-hidden,
#uec-table-wrap.is-hidden {
  display: none;
}

.uec-report__title {
  font-size: 1.1rem;
  margin-bottom: 14px;
}

.uec-summary {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  background: var(--uec-card);
  border: 1px solid var(--uec-border);
  border-radius: var(--uec-radius);
  box-shadow: var(--uec-shadow);
  padding: 20px;
}

.uec-summary__item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 6px 0;
}

.uec-summary__item span {
  font-size: 0.72rem;
  color: var(--uec-text-muted);
}

.uec-summary__item strong {
  font-size: 1.15rem;
  font-variant-numeric: tabular-nums;
}

.uec-summary__item--main strong {
  color: var(--uec-accent);
}

/* per-channel table */
#uec-table-wrap {
  margin-top: 20px;
  background: var(--uec-card);
  border: 1px solid var(--uec-border);
  border-radius: var(--uec-radius);
  box-shadow: var(--uec-shadow);
  overflow-x: auto;
}

.uec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  min-width: 640px;
}

.uec-table th,
.uec-table td {
  text-align: left;
  padding: 11px 14px;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.uec-table thead th {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--uec-text-muted);
  border-bottom: 1px solid var(--uec-border);
  font-variant-numeric: normal;
}

.uec-table tbody tr:not(:last-child) td {
  border-bottom: 1px solid var(--uec-border);
}

.uec-empty-state {
  text-align: center;
  color: var(--uec-text-muted);
  border: 1px dashed var(--uec-border);
  border-radius: var(--uec-radius);
  padding: 28px 20px;
  font-size: 0.92rem;
}

/* ---------------------------------------------
   About / instructions block
--------------------------------------------- */
.uec-about {
  margin-top: 56px;
  padding-top: 32px;
  border-top: 1px solid var(--uec-border);
}

.uec-about h2 {
  font-size: 1.15rem;
  margin-bottom: 12px;
}

.uec-about h3 {
  font-size: 0.98rem;
  margin: 22px 0 8px;
}

.uec-about p,
.uec-about li {
  color: var(--uec-text-muted);
  font-size: 0.92rem;
}

.uec-about ol,
.uec-about ul {
  padding-left: 20px;
  margin: 0 0 1em;
}

.uec-about li { margin-bottom: 6px; }

.uec-about code {
  background: var(--uec-accent-soft);
  color: var(--uec-accent-dark);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.85em;
}

.uec-footer {
  text-align: center;
  margin-top: 48px;
  font-size: 0.78rem;
  color: var(--uec-text-muted);
}

/* ---------------------------------------------
   Responsive
--------------------------------------------- */
@media (max-width: 640px) {
  .uec-container { padding: 32px 0 56px; }
  .channel-card__grid { grid-template-columns: 1fr; }
  .channel-card__results { grid-template-columns: repeat(2, 1fr); }
  .uec-summary { grid-template-columns: repeat(2, 1fr); }
  .uec-header h1 { font-size: 1.5rem; }
}

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