:root {
  --bg: #F5F2EC; --surface: #FFFFFF; --surface2: #F0EDE6; --border: #E0D9CE;
  --green: #3D6B4F; --green-lt: #5A8C6E; --green-bg: #EAF2EC;
  --sand: #C4A882; --sand-lt: #E8D5B5; --sand-bg: #FAF5EC;
  --text: #1C2B1E; --text-dim: #7A8A7C;
  --red: #C0392B; --red-bg: #FDECEA;
  --orange: #D4842A; --orange-bg: #FEF4E8;
  --mono: 'Space Mono', monospace; --sans: 'Space Grotesk', sans-serif;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: var(--sans); background: var(--bg); color: var(--text); min-height: 100vh; font-size: 14px; overflow-x: hidden; }

/* TOP BAR */
.top-bar { background: var(--green); color: white; padding: 0 28px; display: flex; align-items: center; gap: 20px; height: 56px; position: sticky; top: 0; z-index: 100; box-shadow: 0 2px 10px rgba(0,0,0,0.1); }
.top-bar-logo { font-family: var(--mono); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; opacity: .7; }
.top-bar-title { font-size: 16px; font-weight: 700; letter-spacing: -0.02em; }
.top-bar-pill { background: rgba(255,255,255,.15); border-radius: 20px; padding: 4px 12px; font-size: 10px; font-family: var(--mono); font-weight: 700; border: 1px solid rgba(255,255,255,0.2); }
.live-dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: #4CAF50; margin-right: 6px; animation: pulse 2s infinite; box-shadow: 0 0 8px rgba(76, 175, 80, 0.6); }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .4; } }
.top-bar-right { margin-left: auto; display: flex; gap: 8px; }

/* TAB NAV */
.tab-nav { background: var(--surface); border-bottom: 1px solid var(--border); display: flex; padding: 0 28px; overflow-x: auto; position: sticky; top: 56px; z-index: 90; box-shadow: var(--shadow-sm); }
.tab-btn { padding: 16px 24px; font-family: var(--sans); font-size: 14px; font-weight: 500; color: var(--text-dim); background: none; border: none; border-bottom: 2px solid transparent; margin-bottom: -1px; cursor: pointer; white-space: nowrap; transition: all .2s ease; display: flex; align-items: center; gap: 8px; }
.tab-btn:hover { color: var(--text); background: rgba(0,0,0,0.02); }
.tab-btn.active { color: var(--green); border-bottom-color: var(--green); font-weight: 600; background: var(--green-bg); }

/* SUB TAB NAV */
#subTabNavWrapper {
  background: var(--surface2);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 109px; /* 56px top-bar + ~53px tab-nav */
  z-index: 89;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: var(--shadow-sm);
}
#subTabNavWrapper.active {
  max-height: 60px;
}
.sub-tab-nav { display: flex; padding: 0 28px; overflow-x: auto; }
.sub-tab-btn { padding: 12px 24px; font-family: var(--sans); font-size: 13px; font-weight: 500; color: var(--text-dim); background: none; border: none; border-bottom: 2px solid transparent; margin-bottom: -1px; cursor: pointer; white-space: nowrap; transition: all .2s ease; display: flex; align-items: center; gap: 8px; }
.sub-tab-btn:hover { color: var(--text); background: rgba(0,0,0,0.02); }
.sub-tab-btn.active { color: var(--green); border-bottom-color: var(--green); font-weight: 600; }

.tab-content { display: none; }
.tab-content.active { display: block; animation: fadeUp .3s cubic-bezier(0.16, 1, 0.3, 1); }
@keyframes fadeUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.page { max-width: 1400px; margin: 0 auto; padding: 32px 28px; }

/* CARDS */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 24px; margin-bottom: 24px; box-shadow: var(--shadow-sm); transition: box-shadow 0.2s ease; }
.card:hover { box-shadow: var(--shadow-md); }
.card-title { font-size: 14px; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--text-dim); margin-bottom: 20px; display: flex; align-items: center; gap: 8px; }
.badge { background: var(--green-bg); color: var(--green); border-radius: 6px; padding: 4px 8px; font-size: 11px; font-weight: 700; font-family: var(--mono); }

/* LIVE KPI BAR */
.derived-bar { background: linear-gradient(135deg, var(--green), var(--green-lt)); border-radius: 16px; padding: 24px 32px; margin-bottom: 28px; display: flex; gap: 0; position: relative; overflow: hidden; box-shadow: 0 8px 24px rgba(61,107,79,0.2); }
.derived-bar::before { content: ''; position: absolute; inset: 0; background: repeating-linear-gradient(45deg, rgba(255,255,255,.03) 0, rgba(255,255,255,.03) 1px, transparent 1px, transparent 12px); }
.derived-kpi { flex: 1; border-right: 1px solid rgba(255,255,255,.2); padding: 0 28px; position: relative; z-index: 1; }
.derived-kpi:first-child { padding-left: 0; }
.derived-kpi:last-child { border-right: none; }
.dkpi-label { display: flex; align-items: center; gap: 6px; font-size: 10px; text-transform: uppercase; letter-spacing: .12em; color: rgba(255,255,255,.8); margin-bottom: 8px; font-weight: 600; }
.dkpi-val { font-family: var(--mono); font-size: 28px; font-weight: 700; color: white; line-height: 1; text-shadow: 0 2px 4px rgba(0,0,0,0.1); }
.dkpi-unit { font-size: 12px; color: rgba(255,255,255,.7); margin-top: 4px; font-weight: 500; }

/* PERSON PANEL */
.person-panel { background: var(--surface); border: 2px solid var(--green); border-radius: 16px; padding: 20px 24px; display: flex; align-items: center; gap: 20px; margin-bottom: 24px; box-shadow: 0 4px 12px rgba(61,107,79,0.08); }
.person-label { flex: 1; }
.person-label strong { font-size: 15px; font-weight: 700; }
.person-label p { font-size: 12px; color: var(--text-dim); margin-top: 4px; }

/* SLIDERS */
.slider-group { margin-bottom: 18px; }
.slider-header { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 8px; }
.slider-label { font-size: 13px; font-weight: 600; color: var(--text); }
.slider-val-disp { font-family: var(--mono); font-size: 16px; font-weight: 700; color: var(--green); }
input[type="range"] { -webkit-appearance: none; width: 100%; height: 6px; border-radius: 3px; background: var(--border); outline: none; cursor: pointer; margin-bottom: 4px; }
input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; width: 20px; height: 20px; border-radius: 50%; background: var(--green); cursor: pointer; box-shadow: 0 2px 6px rgba(61,107,79,.4); transition: transform .15s cubic-bezier(0.16, 1, 0.3, 1); border: 2px solid white; }
input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.15); }

/* STEP SECTIONS */
.step-section-header { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; padding-bottom: 12px; border-bottom: 2px solid var(--border); }
.step-section-header h3 { font-size: 18px; font-weight: 700; letter-spacing: -0.01em; }

/* RING CONFIG */
.ring-card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; margin-bottom: 16px; overflow: hidden; box-shadow: var(--shadow-sm); transition: transform 0.2s, box-shadow 0.2s; }
.ring-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.ring-header { display: flex; align-items: center; gap: 12px; padding: 14px 20px; background: var(--surface2); border-bottom: 1px solid var(--border); cursor: pointer; transition: background 0.2s; }
.ring-header:hover { background: #E8E4DB; }
.ring-header-title { font-weight: 700; font-size: 14px; flex: 1; }
.ring-body { padding: 20px; display: none; }
.ring-body.open { display: block; }
.sys-card { border: 1px solid var(--border); border-radius: 10px; padding: 16px; margin-bottom: 12px; position: relative; background: #FAFAFA; }
.sys-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); gap: 12px; }
.inline-num, .inline-select, .inline-text { border: 1px solid #D0C9BE; border-radius: 6px; padding: 6px 10px; font-family: var(--sans); font-size: 13px; font-weight: 600; background: var(--surface); outline: none; width: 100%; transition: border-color 0.2s; }
.inline-num:focus, .inline-select:focus { border-color: var(--green); box-shadow: 0 0 0 3px rgba(61,107,79,0.1); }
.btn-remove { position: absolute; top: 12px; right: 12px; width: 24px; height: 24px; border-radius: 50%; border: 1px solid var(--border); background: var(--surface); color: var(--text-dim); cursor: pointer; display: flex; align-items: center; justify-content: center; font-size: 11px; transition: all 0.2s; }
.btn-remove:hover { background: var(--red-bg); color: var(--red); border-color: var(--red); transform: rotate(90deg); }

.add-ring-btn { width: 100%; padding: 16px; border: 2px dashed var(--border); border-radius: 12px; background: transparent; font-weight: 600; font-size: 14px; color: var(--text-dim); cursor: pointer; margin-bottom: 16px; transition: all 0.2s; }
.add-ring-btn:hover { border-color: var(--green); color: var(--green); background: var(--green-bg); }

/* TABLES */
.eden-table { width: 100%; border-collapse: separate; border-spacing: 0; font-size: 13px; border-radius: 8px; overflow: hidden; border: 1px solid var(--border); }
.eden-table th { background: var(--sand-bg); font-weight: 600; padding: 12px 16px; text-align: left; border-bottom: 2px solid var(--border); color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.05em; font-size: 11px; }
.eden-table td { padding: 12px 16px; border-bottom: 1px solid var(--border); }
.eden-table tr:last-child td { border-bottom: none; }
.eden-table tbody tr:hover { background: #FAFAFA; }
.eden-table tfoot td { border-top: 2px solid var(--green); font-weight: 700; background: var(--green-bg); color: var(--green); }

/* KPI GRID */
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; margin-bottom: 28px; }

/* === Phase 5: Responsive / Mobile === */
@media (max-width: 820px) {
  .page { padding: 20px 14px; }
  .top-bar { padding: 0 14px; gap: 10px; }
  .top-bar-title { display: none; }
  .derived-bar { flex-wrap: wrap; gap: 14px; padding: 18px 18px; }
  .derived-bar .derived-kpi { flex: 1 1 40%; }
  /* Split-Screens (Builder/Sim) und 2-Spalten-Inhalte einspaltig stapeln (überschreibt Inline-Grids) */
  .layout-split, .layout-2col { grid-template-columns: 1fr !important; }
}

.kpi-card { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 24px; border-top: 4px solid var(--green); box-shadow: var(--shadow-sm); }
.kpi-label { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--text-dim); margin-bottom: 10px; display: flex; align-items: center; }
.kpi-val { font-family: var(--mono); font-size: 28px; font-weight: 700; color: var(--text); }

/* BUTTONS */
.btn-sm { padding: 6px 14px; border-radius: 6px; font-size: 12px; font-weight: 600; cursor: pointer; border: none; transition: all .2s; }
.btn-white { background: white; color: var(--green); border: 1px solid var(--border); }
.btn-white:hover { border-color: var(--green); box-shadow: 0 2px 4px rgba(61,107,79,0.1); }
.btn-ghost { background: rgba(255,255,255,.15); color: white; border: 1px solid rgba(255,255,255,.2); }
.btn-ghost:hover { background: rgba(255,255,255,.25); border-color: rgba(255,255,255,.4); }

/* STEPPER */
.stepper { display: flex; align-items: center; gap: 8px; }
.stepper-btn { width: 28px; height: 28px; border-radius: 6px; border: 1px solid var(--border); background: var(--surface); color: var(--text); font-size: 16px; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: all .15s; font-family: var(--mono); font-weight: 700; box-shadow: 0 1px 2px rgba(0,0,0,0.05); }
.stepper-btn:hover { background: var(--green); color: white; border-color: var(--green); transform: translateY(-1px); }
.stepper-btn:active { transform: translateY(0); }
.stepper-val { font-family: var(--mono); font-size: 16px; font-weight: 700; color: var(--green); min-width: 40px; text-align: center; }

/* SYS FIELD */
.sys-field { display: flex; flex-direction: column; gap: 6px; }
.sys-field label { font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; color: var(--text-dim); }

/* PROGRESS BAR */
.progress-bar-bg { height: 8px; background: #E5E0D8; border-radius: 4px; overflow: hidden; flex: 1; box-shadow: inset 0 1px 2px rgba(0,0,0,0.05); }
.progress-bar-fill { height: 100%; background: var(--green); transition: width 0.4s cubic-bezier(0.16, 1, 0.3, 1); }
.progress-bar-fill.over { background: var(--red); }

/* TOOLTIP & KATA LOG */
.tooltip-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--sand-lt); color: var(--text);
  font-size: 10px; font-weight: bold; font-family: var(--sans);
  cursor: help; position: relative; margin-left: 6px;
  transition: background 0.2s;
}
.tooltip-icon:hover { background: var(--sand); }

.tooltip-icon:hover::after {
  content: attr(data-tooltip);
  position: absolute; bottom: 100%; left: 50%; transform: translateX(-50%);
  background: #2C3E32; color: #fff; padding: 8px 12px; border-radius: 6px;
  font-size: 12px; white-space: pre-wrap; width: max-content; max-width: 280px;
  z-index: 1000; margin-bottom: 8px; font-weight: normal; line-height: 1.5;
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}
.tooltip-icon:hover::before {
  content: ''; position: absolute; bottom: 100%; left: 50%; transform: translateX(-50%);
  border-width: 6px; border-style: solid; border-color: #2C3E32 transparent transparent transparent;
  margin-bottom: -4px;
}

.formula-box {
  background: var(--surface); border-left: 4px solid var(--green); padding: 16px 20px; margin-top: 12px; border-radius: 0 10px 10px 0; font-family: var(--mono); font-size: 13px; color: var(--text-dim); box-shadow: var(--shadow-sm); border-top: 1px solid var(--border); border-right: 1px solid var(--border); border-bottom: 1px solid var(--border); transition: transform 0.2s;
}
.formula-box:hover { transform: translateX(4px); }
.formula-box strong { color: var(--text); font-weight: 700; }

footer { text-align: center; padding: 32px; color: var(--text-dim); font-size: 12px; border-top: 1px solid var(--border); margin-top: 48px; }

/* DOME VISUALS */
.dome-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  margin-top: 12px;
}
.dome-legend {
  width: 100%;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px dashed var(--border);
}
.legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text);
}
.legend-dot {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  flex-shrink: 0;
}

/* INFRASTRUCTURE GRID */
#infra-inputs-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}

/* ACCORDION ANIMATION */
.accordion-header:hover {
  background: var(--sand-bg) !important;
}
.accordion-item {
  transition: box-shadow 0.2s ease;
}
.accordion-item:hover {
  box-shadow: var(--shadow-md);
}