:root {
  --bg: #f6f8fb;
  --surface: #ffffff;
  --text: #1a2332;
  --muted: #5c6b7f;
  --accent: #1e4d6b;
  --accent-hover: #163a52;
  --border: #e2e8f0;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(26, 35, 50, 0.06);
}

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

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  font-size: 1rem;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
}

a {
  color: var(--accent);
}

a:hover {
  text-decoration: underline;
}

.wrap {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.25rem 3rem;
}

.main-nav {
  margin-top: 1.25rem;
  display: flex;
  gap: 0.65rem;
  flex-wrap: wrap;
}

.main-nav__btn {
  font: inherit;
  cursor: pointer;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  padding: 0.55rem 1rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.main-nav__btn.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.content-section {
  display: none;
}

.content-section.is-active {
  display: block;
}

/* Hero: фон — zilolafinance.jpg в корне сайта (см. DEPLOY-ISPMANAGER.md) */
.hero {
  position: relative;
  width: 100%;
  min-height: clamp(280px, 42vw, 520px);
  max-height: 640px;
  background: linear-gradient(135deg, #1e4d6b 0%, #2d6a8a 45%, #3d87a8 100%);
  background-size: cover;
  background-position: center top;
  display: flex;
  align-items: flex-end;
  padding: 2rem 1.25rem 2.5rem;
}

.hero.has-image {
  background-color: #1a2332;
  background-image: url("../zilolafinance.jpg");
  background-size: cover;
  background-position: center top;
  background-repeat: no-repeat;
}

.hero__inner {
  max-width: 960px;
  margin: 0 auto;
  width: 100%;
}

.hero__title {
  margin: 0 0 0.35rem;
  font-size: clamp(1.75rem, 4vw, 2.35rem);
  font-weight: 700;
  color: #fff;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.25);
}

.hero__subtitle {
  margin: 0;
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.92);
  max-width: 36rem;
}

section {
  margin-top: 2.5rem;
}

.section-title {
  margin: 0 0 1rem;
  font-size: 1.35rem;
  font-weight: 700;
}

.calc-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.calc-btn {
  font: inherit;
  cursor: pointer;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  padding: 0.65rem 1rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: border-color 0.15s, background 0.15s, color 0.15s;
}

.calc-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.calc-btn[aria-expanded="true"] {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.calc-btn:disabled {
  cursor: not-allowed;
  opacity: 0.68;
}

/* Панели не display:none — так виджет calcus не сбрасывает состояние при переключении */
.calc-panels-host {
  position: relative;
  margin-top: 1rem;
  min-height: 0;
}

.calc-panel {
  position: absolute;
  left: -9999px;
  top: 0;
  width: 100%;
  box-sizing: border-box;
  margin: 0;
  padding: 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  visibility: hidden;
  pointer-events: none;
  opacity: 0;
}

.calc-panel.is-open {
  position: relative;
  left: auto;
  top: auto;
  visibility: visible;
  pointer-events: auto;
  opacity: 1;
}

.calc-panel__head {
  margin: 0 0 0.75rem;
  font-size: 1.05rem;
  font-weight: 600;
}

.mariam {
  position: relative;
  margin-top: 2rem;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background:
    linear-gradient(180deg, rgba(18, 28, 44, 0.66), rgba(18, 28, 44, 0.78)),
    var(--mariam-bg, linear-gradient(135deg, #2c3e50, #4ca1af));
  background-size: cover;
  background-position: center;
}

.mariam__overlay {
  padding: 1.1rem;
  color: #fff;
}

.mariam__lead {
  margin-top: 0;
  opacity: 0.92;
}

.mariam__lead a {
  color: #fff;
  text-decoration: none;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.75);
  background: rgba(0, 0, 0, 0.28);
  padding: 0.1rem 0.35rem;
  border-radius: 6px;
}

.mariam__lead a:hover {
  text-decoration: none;
  background: rgba(0, 0, 0, 0.38);
}

.mariam .section-title {
  color: #fff;
}

.mariam-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 0.85rem;
}

.mariam-card,
.mariam-video,
.mariam-table-wrap {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 10px;
  padding: 0.9rem;
  backdrop-filter: blur(3px);
}

.mariam-card h3,
.mariam-video h3,
.mariam-table-wrap h3 {
  margin: 0 0 0.6rem;
  font-size: 1rem;
}

.mariam-card__value {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;
}

.mariam-card__sub {
  margin: 0.4rem 0 0;
  font-size: 0.93rem;
  opacity: 0.95;
}

.mariam-video,
.mariam-table-wrap {
  margin-top: 0.85rem;
}

.progress {
  width: 100%;
  height: 8px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  overflow: hidden;
  margin-top: 0.45rem;
}

.progress__bar {
  height: 100%;
  width: 0;
  background: #7de0a1;
  transition: width 0.25s ease;
}

.mariam-video__frame {
  position: relative;
  width: 100%;
  min-height: 280px;
}

.mariam-video__frame img {
  width: 100%;
  height: 100%;
  min-height: 280px;
  object-fit: cover;
  border: 0;
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.3);
}

.mariam-video__caption {
  margin: 0.5rem 0 0;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.92);
}

.mariam-video__link {
  margin: 0.4rem 0 0;
}

.mariam-video__link a {
  color: #fff;
}

.table-scroll {
  overflow-x: auto;
}

.mariam-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 820px;
}

.mariam-table th,
.mariam-table td {
  padding: 0.55rem 0.45rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
  text-align: left;
  font-size: 0.93rem;
}

.status-paid {
  color: #b8ffca;
}

.status-planned {
  color: #ffe6ad;
}

.mariam-status-btn {
  font: inherit;
  cursor: pointer;
  border: 1px solid rgba(255, 255, 255, 0.42);
  color: #fff;
  background: rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  padding: 0.35rem 0.55rem;
  white-space: nowrap;
}

.mariam-status-btn:hover {
  background: rgba(255, 255, 255, 0.24);
}