/* ============================================================
   WollyDev24 — Material Expressive shared stylesheet
   M3 tonal palette (Forest Green seed) · no gradients
   ============================================================ */

* { margin: 0; padding: 0; box-sizing: border-box; }

@font-face {
  font-family: 'Material Symbols Rounded';
  font-style: normal;
  font-weight: 100 700;
  src: url('fonts/material-symbols-rounded.woff2') format('woff2-variations'),
       url('fonts/material-symbols-rounded.woff2') format('woff2');
}

:root {
  --primary: #A1D39A;
  --on-primary: #0A390F;
  --primary-container: #245024;
  --on-primary-container: #BCF0B4;
  --secondary: #BACCB3;
  --secondary-container: #3B4B38;
  --on-secondary-container: #D6E8CE;
  --tertiary: #A0CFD4;
  --tertiary-container: #1F4D52;
  --on-tertiary-container: #BCEBF0;
  --background: #10140F;
  --surface: #10140F;
  --surface-container-low: #191D17;
  --surface-container: #1D211B;
  --surface-container-high: #272B25;
  --surface-container-highest: #323630;
  --on-surface: #E0E4DB;
  --surface-variant: #424940;
  --on-surface-variant: #C2C9BD;
  --outline: #8C9388;
  --outline-variant: #424940;
  --elevation-shadow: rgba(0, 0, 0, 0.45);
  color-scheme: dark;
}

.light-mode {
  --primary: #3C6939;
  --on-primary: #FFFFFF;
  --primary-container: #BCF0B4;
  --on-primary-container: #245024;
  --secondary: #52634F;
  --secondary-container: #D6E8CE;
  --on-secondary-container: #3B4B38;
  --tertiary: #38656A;
  --tertiary-container: #BCEBF0;
  --on-tertiary-container: #1F4D52;
  --background: #F7FBF1;
  --surface: #F7FBF1;
  --surface-container-low: #F1F5EB;
  --surface-container: #ECEFE6;
  --surface-container-high: #E6E9E0;
  --surface-container-highest: #E0E4DB;
  --on-surface: #191D17;
  --surface-variant: #DEE5D8;
  --on-surface-variant: #424940;
  --outline: #72796F;
  --outline-variant: #C2C9BD;
  --elevation-shadow: rgba(20, 26, 18, 0.18);
  color-scheme: light;
}

/* ===== Material Symbols ===== */
.msr {
  font-family: 'Material Symbols Rounded', sans-serif;
  font-weight: normal;
  font-style: normal;
  line-height: 1;
  letter-spacing: normal;
  text-transform: none;
  display: inline-block;
  white-space: nowrap;
  word-wrap: normal;
  direction: ltr;
  -webkit-font-feature-settings: 'liga';
  font-feature-settings: 'liga';
  -webkit-font-smoothing: antialiased;
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
  user-select: none;
}
.msr.filled { font-variation-settings: 'FILL' 1, 'wght' 500, 'GRAD' 0, 'opsz' 24; }
.msr.sm { font-size: 18px; }
.msr.md { font-size: 24px; }
.msr.lg { font-size: 28px; }
.msr.xl { font-size: 36px; }

/* ===== Base ===== */
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: "Google Sans Flex", "Roboto", system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--background);
  color: var(--on-surface);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background .3s, color .3s;
  overflow-x: hidden;
  min-height: 100vh;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
a, button { -webkit-tap-highlight-color: transparent; touch-action: manipulation; }

img { max-width: 100%; display: block; }

/* ===== Layout ===== */
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* ===== Nav bar ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 24px;
  padding-top: calc(12px + env(safe-area-inset-top));
  background: color-mix(in srgb, var(--surface-container) 82%, transparent);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--outline-variant);
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  color: var(--on-surface);
  text-decoration: none;
}
.nav-brand:hover { text-decoration: none; }
.nav-brand img {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  display: block;
}
.nav-brand .brand-txt { font-size: 16px; }
.nav-links { display: flex; align-items: center; gap: 8px; }
.nav-link {
  color: var(--on-surface-variant);
  font-size: 14px;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 999px;
  transition: background .2s, color .2s;
  text-decoration: none;
}
.nav-link:hover { background: var(--surface-container-high); color: var(--on-surface); text-decoration: none; }

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 14px;
  border: 1px solid var(--outline-variant);
  background: var(--surface-container);
  color: var(--on-surface);
  cursor: pointer;
  transition: background .2s, transform .2s;
}
.theme-toggle:hover { background: var(--surface-container-high); transform: scale(1.05); }

/* ===== Hero ===== */
.hero {
  text-align: center;
  padding: 72px 24px 56px;
}
.hero-icon {
  width: 108px;
  height: 108px;
  border-radius: 30px;
  box-shadow: 0 14px 40px var(--elevation-shadow);
  margin: 0 auto;
  animation: heroIn .7s cubic-bezier(.22, 1, .36, 1) both;
}
@keyframes heroIn {
  0% { opacity: 0; transform: scale(.6) rotate(-8deg); }
  100% { opacity: 1; transform: scale(1) rotate(0); }
}
.hero h1 {
  margin-top: 26px;
  font-size: clamp(34px, 7vw, 58px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  animation: fadeUp .7s .08s cubic-bezier(.22, 1, .36, 1) both;
}
.hero h1 .accent { color: var(--primary); }
.hero .tagline {
  margin-top: 14px;
  font-size: clamp(16px, 2.5vw, 20px);
  color: var(--on-surface-variant);
  max-width: 620px;
  margin-inline: auto;
  animation: fadeUp .7s .16s cubic-bezier(.22, 1, .36, 1) both;
}
.hero .tagline strong { color: var(--on-surface); font-weight: 600; }

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 34px;
  animation: fadeUp .7s .24s cubic-bezier(.22, 1, .36, 1) both;
}
.hero-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 28px;
  animation: fadeUp .7s .32s cubic-bezier(.22, 1, .36, 1) both;
}

@keyframes fadeUp {
  0% { opacity: 0; transform: translateY(22px); }
  100% { opacity: 1; transform: translateY(0); }
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: transform .2s cubic-bezier(.22, 1, .36, 1), box-shadow .2s;
}
.btn:hover { text-decoration: none; transform: translateY(-2px) scale(1.02); }
.btn.primary {
  background: var(--primary);
  color: var(--on-primary);
  box-shadow: 0 8px 24px color-mix(in srgb, var(--primary) 35%, transparent);
}
.btn.primary:hover { box-shadow: 0 12px 32px color-mix(in srgb, var(--primary) 45%, transparent); }
.btn.secondary {
  background: var(--surface-container-high);
  color: var(--on-surface);
  border: 1px solid var(--outline-variant);
}

/* ===== Chips ===== */
.chip {
  font-size: 12.5px;
  font-weight: 500;
  color: var(--on-surface-variant);
  background: var(--surface-container);
  border: 1px solid var(--outline-variant);
  padding: 6px 14px;
  border-radius: 999px;
}
.chip.accent {
  color: var(--on-primary-container);
  background: var(--primary-container);
  border-color: transparent;
}

/* ===== Sections ===== */
section { padding: 64px 24px; }
.section-head { text-align: center; margin-bottom: 40px; }
.section-head .kicker {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--on-primary-container);
  background: var(--primary-container);
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 16px;
}
.section-head h2 {
  font-size: clamp(26px, 4.5vw, 40px);
  font-weight: 700;
  letter-spacing: -0.015em;
}
.section-head p {
  margin-top: 10px;
  color: var(--on-surface-variant);
  max-width: 640px;
  margin-inline: auto;
}

/* ===== Cards ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 18px;
}
.card-grid-3 { grid-template-columns: repeat(3, 1fr); }
.card {
  background: var(--surface-container);
  border: 1px solid var(--outline-variant);
  border-radius: 28px;
  padding: 28px 24px;
  transition: transform .3s cubic-bezier(.22, 1, .36, 1), box-shadow .3s, background .3s;
}
.card:hover {
  transform: translateY(-4px);
  background: var(--surface-container-high);
  box-shadow: 0 18px 44px var(--elevation-shadow);
}
.card.clickable {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  text-decoration: none;
  color: var(--on-surface);
  cursor: pointer;
}
.card.clickable:hover { text-decoration: none; }
.card .card-title { font-size: 17px; font-weight: 600; letter-spacing: -0.01em; margin-bottom: 8px; }
.card .card-desc { font-size: 14px; color: var(--on-surface-variant); }
.card .card-icon-row { flex-shrink: 0; }
.card .card-arrow { margin-left: auto; align-self: center; color: var(--on-surface-variant); }

.icon-box {
  width: 52px;
  height: 52px;
  border-radius: 17px;
  background: var(--primary-container);
  color: var(--on-primary-container);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.icon-box.alt1 { background: var(--tertiary-container); color: var(--on-tertiary-container); }
.icon-box.alt2 { background: var(--secondary-container); color: var(--on-secondary-container); }
.icon-box.big {
  width: 108px;
  height: 108px;
  border-radius: 30px;
  box-shadow: 0 14px 40px var(--elevation-shadow);
  animation: heroIn .7s cubic-bezier(.22, 1, .36, 1) both;
}
.icon-box.big .msr { font-size: 52px; }

/* ===== List rows (blog posts, links) ===== */
.list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.list-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  border-radius: 24px;
  background: var(--surface-container);
  border: 1px solid var(--outline-variant);
  text-decoration: none;
  color: var(--on-surface);
  transition: background .2s, transform .25s cubic-bezier(.22, 1, .36, 1);
  cursor: pointer;
}
.list-row:hover {
  background: var(--surface-container-high);
  transform: translateY(-2px);
  text-decoration: none;
}
.list-row .list-icon { flex-shrink: 0; }
.list-row .list-body { flex: 1; min-width: 0; }
.list-row .list-title { font-size: 15px; font-weight: 600; }
.list-row .list-desc { font-size: 13px; color: var(--on-surface-variant); }
.list-row .list-arrow { color: var(--on-surface-variant); flex-shrink: 0; }

/* expandable content (blog) */
.expand { max-height: 0; overflow: hidden; transition: max-height .4s cubic-bezier(.22, 1, .36, 1); }
.expand.open { max-height: 900px; }
.expand-inner { padding: 0 18px 16px; font-size: 14px; color: var(--on-surface-variant); line-height: 1.7; }
.expand-inner img { max-width: 100%; border-radius: 18px; margin-top: 12px; border: 1px solid var(--outline-variant); }
.expand-inner a { color: var(--primary); }
.expand-arrow { transition: transform .25s; }
.list-row.open .expand-arrow { transform: rotate(180deg); }

/* ===== Panels (startpage info cards) ===== */
.panel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}
.panel {
  background: var(--surface-container);
  border: 1px solid var(--outline-variant);
  border-radius: 24px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.panel .panel-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--on-surface-variant);
}
.panel .panel-value {
  font-size: 24px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.panel .panel-subtitle { font-size: 12px; color: var(--on-surface-variant); }

/* ===== Search bar ===== */
.search-bar {
  width: 100%;
  padding: 14px 18px;
  border-radius: 999px;
  border: 1px solid var(--outline-variant);
  background: var(--surface-container);
  color: var(--on-surface);
  font-size: 15px;
  font-family: inherit;
  transition: border-color .2s, box-shadow .2s, background .2s;
}
.search-bar:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 30%, transparent);
  background: var(--surface-container-high);
}
.search-bar::placeholder { color: var(--on-surface-variant); opacity: .7; }

/* ===== Footer ===== */
.footer {
  border-top: 1px solid var(--outline-variant);
  padding: 40px 24px;
  padding-bottom: calc(40px + env(safe-area-inset-bottom));
  text-align: center;
  color: var(--on-surface-variant);
  font-size: 14px;
}
.footer .row { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; margin-bottom: 16px; }
.footer a { color: var(--on-surface-variant); font-weight: 500; }
.footer a:hover { color: var(--primary); }

/* ===== Centered page (404 / 503) ===== */
.center-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 24px;
  gap: 8px;
}
.center-page .big-icon {
  width: 96px;
  height: 96px;
  border-radius: 28px;
  background: var(--primary-container);
  color: var(--on-primary-container);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.center-page h1 { font-size: clamp(28px, 6vw, 44px); font-weight: 700; letter-spacing: -0.02em; }
.center-page p { color: var(--on-surface-variant); max-width: 460px; margin-bottom: 24px; }

/* ===== Bottom tab bar (telegram mini app) ===== */
.tab-bar {
  position: fixed;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 50;
  background: var(--surface-container-high);
  border: 1px solid var(--outline-variant);
  border-radius: 999px;
  display: flex;
  gap: 8px;
  padding: 8px;
  box-shadow: 0 10px 30px var(--elevation-shadow);
}
.tab-bar button {
  background: none;
  border: none;
  color: var(--on-surface-variant);
  width: 44px;
  height: 44px;
  border-radius: 999px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background .2s, color .2s;
}
.tab-bar button:hover { background: var(--surface-container-highest); }
.tab-bar button.active { background: var(--primary-container); color: var(--on-primary-container); }
.tab-bar .msr { font-size: 26px; }

/* ===== Reveal on scroll ===== */
.reveal {
  opacity: 0;
  transform: translateY(28px) scale(.98);
  transition: opacity .7s cubic-bezier(.22, 1, .36, 1), transform .7s cubic-bezier(.22, 1, .36, 1);
}
.reveal.visible { opacity: 1; transform: translateY(0) scale(1); }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero-icon, .hero h1, .hero .tagline, .hero-actions, .hero-badges { animation: none; }
}

/* ===== Responsive ===== */
@media (max-width: 760px) {
  .nav { padding: 10px 14px; }
  .nav-link { padding: 10px 12px; }
  section { padding: 48px 18px; }
  .hero { padding: 56px 18px 44px; }
  .card-grid-3 { grid-template-columns: 1fr; }
  .wrap { padding: 0 18px; }
}
@media (max-width: 560px) {
  .nav-link.hide-small { display: none; }
  .hero-actions { width: 100%; }
  .btn { flex: 1 1 100%; justify-content: center; }
  .panel-grid { grid-template-columns: 1fr; }
}
@media (max-width: 380px) {
  .nav-link.hide-tiny { display: none; }
}