:root {
  --bg:        #0e0f13;
  --bg-card:   #17181d;
  --bg-chip:   #1f2129;
  --border:    #262832;
  --text:      #eef0f4;
  --text-dim:  #8b8e98;
  --accent:    #4c8dff;
  --green:     #2ecc71;
  --red:       #ff5c5c;
  --radius:    16px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-tap-highlight-color: transparent;
  overscroll-behavior-y: none;
}

a { color: inherit; text-decoration: none; }

/* ── Общий каркас "приложения" ─────────────────────────────── */
.app-shell {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.app-bar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: calc(env(safe-area-inset-top, 0px) + 14px) 18px 14px;
  background: rgba(14,15,19,0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.app-bar-title {
  font-size: 19px;
  font-weight: 700;
}

.app-bar-action {
  font-size: 20px;
  color: var(--text-dim);
  padding: 4px 8px;
}

.app-content {
  flex: 1;
  padding: 16px;
  padding-bottom: calc(84px + env(safe-area-inset-bottom, 0px));
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 560px;
  width: 100%;
  margin: 0 auto;
}

/* ── Нижняя навигация ───────────────────────────────────────── */
.bottom-nav {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  display: flex;
  justify-content: space-around;
  background: rgba(17,18,23,0.96);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--border);
  padding: 8px 6px calc(8px + env(safe-area-inset-bottom, 0px));
  max-width: 560px;
  margin: 0 auto;
  width: 100%;
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  font-size: 11px;
  color: var(--text-dim);
  flex: 1;
  padding: 4px 0;
}

.nav-item-active { color: var(--accent); }
.nav-item-disabled { opacity: 0.35; }
.nav-icon { font-size: 20px; }

/* ── Карточки ───────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}

.card-muted { opacity: 0.7; }

.card-label {
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-value {
  font-size: 30px;
  font-weight: 700;
}

.card-value-muted { color: var(--text-dim); }

.card-hint {
  font-size: 13px;
  color: var(--text-dim);
  margin-top: 4px;
}

.badge {
  font-size: 10px;
  font-weight: 700;
  color: #0e0f13;
  background: #ffb020;
  border-radius: 6px;
  padding: 2px 6px;
}

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

.pair-chip {
  background: var(--bg-chip);
  border-radius: 10px;
  padding: 6px 10px;
  font-size: 13px;
  font-weight: 600;
}

/* ── Экран входа ────────────────────────────────────────────── */
.auth-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.auth-card {
  width: 100%;
  max-width: 380px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
}

.auth-logo { font-size: 40px; margin-bottom: 8px; }
.auth-title { font-size: 22px; margin: 0 0 4px; }
.auth-subtitle { font-size: 13px; color: var(--text-dim); margin: 0 0 20px; }

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  text-align: left;
}

.field { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--text-dim); }

.field input {
  background: var(--bg-chip);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  color: var(--text);
  font-size: 15px;
  outline: none;
}

.field input:focus { border-color: var(--accent); }

.btn {
  border: none;
  border-radius: 10px;
  padding: 13px 16px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
}

.btn-primary { background: var(--accent); color: #fff; }
.btn-block { width: 100%; }

.alert {
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 13px;
  margin-bottom: 16px;
  text-align: left;
}

.alert-error {
  background: rgba(255,92,92,0.12);
  color: var(--red);
  border: 1px solid rgba(255,92,92,0.3);
}

/* ── Экран графика ────────────────────────────────────── */
.chart-pairbar {
  display: flex;
  gap: 8px;
  padding: 10px 12px;
  overflow-x: auto;
  white-space: nowrap;
  border-bottom: 1px solid var(--border);
  -webkit-overflow-scrolling: touch;
}

.chart-pairbar .pair-chip {
  flex: 0 0 auto;
}

.pair-chip-active {
  background: var(--accent);
  color: #fff;
}

.chart-content {
  flex: 1;
  display: flex;
  padding-bottom: calc(84px + env(safe-area-inset-bottom, 0px));
}

.tv-chart-box {
  flex: 1;
  width: 100%;
}