:root {
  --green: #3ecf4a;
  --green-dim: #2a9d35;
  --bg: #0a0c0f;
  --bg-soft: #10151a;
  --card: #151b22;
  --line: #24303a;
  --text: #e8ebe9;
  --muted: #8a9399;
  --warm: #c9b896;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

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

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100dvh;
  background:
    radial-gradient(ellipse 80% 40% at 50% -10%, rgba(62, 207, 74, 0.14), transparent 60%),
    var(--bg);
}

.app {
  max-width: 520px;
  margin: 0 auto;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  padding-bottom: calc(112px + var(--safe-bottom));
}

.topbar {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 18px 20px 8px;
  gap: 8px;
}

.back-web {
  justify-self: start;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 650;
}

.topbar .brand { justify-self: center; }
.topbar .status { justify-self: end; }

.brand {
  font-weight: 700;
  letter-spacing: -0.03em;
  font-size: 1.05rem;
}

.brand span { color: var(--green); }

.status {
  font-size: 0.75rem;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 4px 8px;
  border-radius: 999px;
}

.view { display: none; padding: 8px 20px 24px; }
.view.active { display: block; }
[hidden] { display: none !important; }

.hero h1 {
  font-size: 1.7rem;
  line-height: 1.2;
  letter-spacing: -0.03em;
  margin: 12px 0 10px;
}

.hero h1 em {
  font-style: normal;
  color: var(--green);
}

.lead {
  color: var(--muted);
  line-height: 1.55;
  margin-bottom: 22px;
}

.actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 22px;
}

.btn {
  border: 0;
  border-radius: 14px;
  padding: 14px 14px;
  font-weight: 650;
  font-size: 0.95rem;
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, var(--green), var(--green-dim));
  color: #071109;
}

.btn-ghost {
  background: var(--card);
  color: var(--text);
  border: 1px solid var(--line);
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 16px;
  margin-bottom: 12px;
}

.card h2, .card h3 {
  font-size: 1rem;
  margin-bottom: 8px;
}

.card p, .story p {
  color: var(--muted);
  line-height: 1.55;
  font-size: 0.95rem;
}

.story p { margin-bottom: 10px; }
.story strong { color: var(--text); }

.kern {
  color: var(--warm);
  font-size: 0.92rem;
  line-height: 1.5;
}

.list {
  display: grid;
  gap: 10px;
}

.item {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px;
}

.item small {
  display: block;
  color: var(--muted);
  margin-top: 4px;
}

.hint {
  color: var(--muted);
  font-size: 0.86rem;
  margin-top: 8px;
}

.nav {
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  bottom: 0;
  width: min(520px, 100%);
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  background: rgba(10, 12, 15, 0.96);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--line);
  padding: 8px 6px calc(18px + var(--safe-bottom));
  z-index: 40;
}

.nav button {
  background: none;
  border: 0;
  color: var(--muted);
  font-size: 0.68rem;
  padding: 6px 0;
  cursor: pointer;
}

.nav button.active { color: var(--green); }

.nav b {
  display: block;
  font-size: 1.05rem;
  margin-bottom: 2px;
}

.install {
  display: none;
  margin-top: 12px;
}

.install.show { display: block; }

label {
  display: block;
  font-size: 0.72rem;
  font-weight: 650;
  color: var(--muted);
  margin: 12px 0 6px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

input, select, textarea {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  padding: 13px 12px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #0d1116;
  color: var(--text);
  font-size: 1rem;
  outline: none;
}

input:focus, select:focus, textarea:focus { border-color: var(--green); }

.row-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}
.row-2 > * { min-width: 0; }

.methods {
  display: grid;
  gap: 8px;
}

.method-btn {
  width: 100%;
  padding: 13px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #0d1116;
  color: var(--text);
  font-weight: 650;
  cursor: pointer;
}

.method-btn.active {
  background: var(--green);
  border-color: var(--green);
  color: #071109;
}

.result {
  background: #0f1a12;
  border: 1px solid rgba(62, 207, 74, 0.28);
  border-radius: 16px;
  padding: 16px;
  margin: 14px 0 12px;
}

.result-value {
  font-size: 2rem;
  font-weight: 750;
  color: var(--green);
  line-height: 1.1;
}

.result-meta, .result-hint {
  color: var(--muted);
  font-size: 0.88rem;
  margin-top: 6px;
  line-height: 1.45;
}

.btn-block { width: 100%; margin-top: 8px; }

.ferment-item {
  cursor: pointer;
}

.ferment-item .meta {
  color: var(--muted);
  font-size: 0.82rem;
  margin-top: 6px;
  line-height: 1.4;
}

.badge {
  display: inline-block;
  font-size: 0.7rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 2px 8px;
  color: var(--warm);
  margin-left: 6px;
}

.empty {
  color: var(--muted);
  font-size: 0.9rem;
}

.danger {
  background: transparent;
  color: #c98a8a;
  border: 1px solid #3a2428;
  margin-top: 8px;
}

.reminder {
  border-color: rgba(201, 184, 150, 0.4);
}

.ph-bar {
  height: 10px;
  border-radius: 99px;
  background: linear-gradient(90deg, #3ecf4a 0%, #c9b896 55%, #c98a8a 100%);
  position: relative;
  margin: 10px 0 6px;
}

.ph-marker {
  position: absolute;
  top: -4px;
  width: 4px;
  height: 18px;
  background: #fff;
  border-radius: 2px;
  transform: translateX(-50%);
}

.ph-good { color: var(--green); }
.ph-watch { color: var(--warm); }
.ph-risk { color: #c98a8a; }

.photos {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 10px;
}

.photos img {
  width: 100%;
  height: 110px;
  object-fit: cover;
  border-radius: 12px;
  border: 1px solid var(--line);
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  border: 1px solid var(--line);
  background: #0d1116;
  color: var(--text);
  border-radius: 999px;
  padding: 8px 12px;
  font-weight: 650;
  cursor: pointer;
}

.chip.active {
  background: var(--green);
  border-color: var(--green);
  color: #071109;
}

.map-link {
  color: var(--green);
  text-decoration: none;
  font-weight: 650;
}