/* ═══════════════════════════════════════
   YUNITY · layout.css  v4
═══════════════════════════════════════ */

.app {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* ── SIDEBAR ── */
.sidebar {
  width: 200px;
  flex-shrink: 0;
  background: var(--stone);
  border-right: 1px solid var(--clay);
  padding: 0;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  position: relative;
}

/* Seitlicher Ambient-Schimmer */
.sidebar::after {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 1px; height: 100%;
  background: linear-gradient(180deg,
    transparent 0%,
    rgba(200,169,110,0.12) 30%,
    rgba(200,169,110,0.06) 70%,
    transparent 100%);
  pointer-events: none;
}

.sidebar-logo {
  padding: 16px 22px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.07);
  position: relative;
}

/* Amber-Punkt links vom Logo */
.sidebar-logo::before {
  content: '';
  position: absolute;
  left: 22px;
  top: 50%;
  transform: translateY(-50%);
  width: 3px; height: 3px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 6px var(--amber);
  animation: ambientPulse 3s ease-in-out infinite;
  margin-top: -2px;
}

.sidebar-logo-text {
  font-size: 13px;
  font-weight: 300;
  letter-spacing: 0.32em;
  color: var(--linen);
  text-transform: uppercase;
}

.sb-nav-block {
  flex: 1;
  padding: 2px 0 0;
  overflow-y: auto;
}

.nav-item {
  font-size: 10px;
  letter-spacing: 0.1em;
  padding: 8px 22px;
  color: var(--ash);
  text-transform: uppercase;
  transition: color var(--t-mid), background var(--t-mid), border-color var(--t-mid);
  display: block;
  position: relative;
  border-left: 2px solid transparent;
}
.nav-item:hover { color: var(--sand); }
.nav-item.active { color: var(--accent); background: var(--amber-dim); border-left-color: var(--accent); }
.nav-item.amber { color: var(--amber); }
.nav-item.disabled { color: var(--fog); opacity: 0.4; pointer-events: none; }
.nav-item.placeholder { color: var(--fog); opacity: 0.35; font-style: normal; cursor: default; pointer-events: none; }

.sidebar-footer {
  margin-top: auto;
  padding: 14px 22px 18px;
  border-top: 1px solid rgba(255,255,255,0.07);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

/* stats row */
.sb-stats-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 8px;
  color: var(--fog);
  letter-spacing: 0.06em;
  width: 100%;
}
.sb-stats-row { color: var(--linen); font-size: 9px; }
.sb-stats-row strong { color: var(--linen); font-weight: 400; }
.sb-stat-item { color: var(--linen); }
.sb-stat-item strong { color: var(--linen); font-weight: 400; }
.sb-stat-div { display: inline-block; width: 1px; height: 9px; background: var(--linen); opacity: 0.2; flex-shrink: 0; }

/* tier row */
.sb-tier-row {
  cursor: pointer;
}

.sb-footer strong {
  color: var(--sand);
  font-weight: 400;
}

/* ── CONTENT ── */
.content {
  flex: 1;
  overflow-y: auto;
  padding: 56px 64px;
  position: relative;
}

/* Ambient-Gradient oben rechts */
.content::before {
  content: '';
  position: fixed;
  top: 0; right: 0;
  width: 400px; height: 300px;
  background: radial-gradient(ellipse at top right,
    rgba(200,169,110,0.04) 0%,
    transparent 65%);
  pointer-events: none;
  z-index: 0;
}

/* ── PAGE HEADER ── */
.page-header { margin-bottom: 52px; position: relative; z-index: 1; }

.page-title {
  font-size: 36px;
  font-weight: 300;
  color: var(--warm);
  letter-spacing: 0.01em;
  line-height: 1.05;
}

.page-sub {
  font-size: 15px;
  color: var(--ash);
  margin-top: 9px;
  line-height: 1.65;
}

/* ── SECTION ── */
.section {
  margin-bottom: 56px;
  position: relative;
  z-index: 1;
}

.section-title {
  font-size: 11px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--sand);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.section-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--clay) 0%, transparent 100%);
}

/* Tier badge — clickable */
.sb-tier {
  font-size: 8px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 5px 10px;
  border-radius: 2px;
  font-family: var(--font-sans);
  font-weight: 400;
  display: block;
  width: 100%;
  box-sizing: border-box;
  cursor: pointer;
  text-align: center;
  transition: color 0.15s, border-color 0.15s, opacity 0.15s;
}
.sb-tier:hover { opacity: 0.75; }
.sb-tier--free {
  color: var(--ash);
  border: 1px solid var(--clay);
  background: transparent;
}
.sb-tier--core {
  color: var(--amber);
  border: 1px solid var(--amber-line);
  background: transparent;
}
.sb-tier--deep {
  color: var(--amber);
  border: 1px solid var(--amber-line);
  background: rgba(200,169,110,0.06);
}

.sb-section-label {
  font-size: 9px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--sand);
  padding: 0 22px;
  margin: 14px 0 4px;
}

/* Locked nav items */
.nav-item.sb-locked {
  display: flex;
  align-items: center;
  cursor: pointer;
  color: #6b6560;
  transition: opacity 0.18s, color 0.18s;
}
.nav-item.sb-locked:hover {
  color: var(--ash);
}

/* Upgrade panel */
/* Tier switcher panel (hidden, toggle by badge click) */
.sb-tier-switcher {
  margin: 0 12px 12px;
  padding: 14px;
  border: 1px solid var(--clay);
  border-radius: var(--radius);
  background: var(--stone);
  animation: fadeIn 0.15s ease;
}
.sb-tier-switcher-label {
  font-size: 8px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ash);
  margin-bottom: 10px;
}
.sb-tier-buttons {
  display: flex;
  gap: 6px;
}
.sb-tier-btn {
  flex: 1;
  padding: 5px 0;
  font-size: 8px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-family: var(--font-sans);
  cursor: pointer;
  border: 1px solid var(--clay);
  background: transparent;
  color: var(--ash);
  border-radius: 2px;
  transition: all 0.15s;
}
.sb-tier-btn:hover {
  border-color: var(--amber-line);
  color: var(--sand);
}
.sb-tier-btn.active {
  border-color: var(--amber-line);
  color: var(--amber);
  background: rgba(200,169,110,0.07);
}
.sb-tier-hint {
  font-size: 9px;
  color: #6b6560;
  margin-top: 8px;
}

.sb-upgrade-panel {
  margin: 0 12px 8px;
  padding: 12px 14px;
  border: 1px solid var(--clay);
  border-radius: var(--radius);
  background: var(--stone);
  animation: fadeIn 0.15s ease;
}
.sb-upgrade-label {
  font-size: 8px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 6px;
}
.sb-upgrade-desc {
  font-size: 11px;
  color: var(--ash);
  line-height: 1.5;
  margin-bottom: 10px;
}
.sb-upgrade-btn {
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber);
  background: transparent;
  border: 1px solid var(--amber-line);
  padding: 5px 12px;
  border-radius: 2px;
  cursor: pointer;
  font-family: var(--font-sans);
  transition: background 0.18s, color 0.18s;
}
.sb-upgrade-btn:hover {
  background: rgba(200,169,110,0.1);
}

.sb-continue {
  display: block;
  width: calc(100% - 24px);
  margin: 0 12px 12px;
  padding: 9px 14px;
  background: rgba(200,169,110,0.08);
  border: 1px solid var(--amber-line);
  border-radius: var(--radius);
  color: var(--amber);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-align: left;
  cursor: pointer;
  font-family: var(--font-sans);
  transition: background 0.18s;
}
.sb-continue:hover {
  background: rgba(200,169,110,0.14);
}

.sb-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--clay) 50%, transparent 100%);
  margin: 12px 20px 16px;
}

/* ── THEME SWITCHER ── */
.sb-theme-toggle {
  background: none; border: none; cursor: pointer;
  font-family: var(--font-sans);
  font-size: 9px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--ash); margin-top: 8px; padding: 0;
  transition: color var(--t-mid);
}
.sb-theme-toggle:hover { color: var(--sand); }

.sb-theme-switcher {
  margin: 0 12px 12px;
  padding: 14px;
  border: 1px solid var(--clay);
  border-radius: var(--radius);
  background: var(--stone);
  animation: fadeIn 0.15s ease;
}

.sb-modus-btn {
  display: block;
  width: 100%;
  font-size: 8px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-family: var(--font-sans);
  color: var(--ash);
  background: transparent;
  border: 1px solid var(--clay);
  border-radius: 2px;
  padding: 5px 10px;
  cursor: pointer;
  text-align: center;
  transition: color 0.15s, border-color 0.15s;
}
.sb-modus-btn:hover { color: var(--sand); border-color: var(--border-hi); }
.sb-modus-btn.active { color: var(--amber); border-color: var(--amber-line); }

.sb-theme-grid {
  display: flex;
  gap: 5px;
  margin-bottom: 0;
}

.sb-theme-btn {
  display: flex; align-items: center; gap: 6px;
  padding: 6px 8px;
  font-size: 9px; letter-spacing: .1em; text-transform: uppercase;
  font-family: var(--font-sans);
  cursor: pointer;
  border: 1px solid var(--clay);
  background: transparent;
  color: var(--ash);
  border-radius: 2px;
  transition: all 0.15s;
  white-space: nowrap;
}
.sb-theme-btn:hover {
  border-color: var(--amber-line);
  color: var(--sand);
}
.sb-theme-btn.active {
  border-color: var(--amber-line);
  color: var(--sand);
  background: var(--amber-dim);
}
.sb-theme-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}