/* 🎨 DIAGRAM STUDIO (ER, STRUKTOGRAMM, UML) STYLES */

.ds-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px;
}

.ds-tab-nav {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
  border-bottom: 1px solid #1e293b;
  padding-bottom: 12px;
}

.ds-tab-btn {
  background: #1e293b;
  color: #cbd5e1;
  border: 1px solid #334155;
  border-radius: 8px;
  padding: 10px 18px;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.15s ease;
}

.ds-tab-btn:hover {
  background: #334155;
  color: #ffffff;
}

.ds-tab-btn.active {
  background: #1d4ed8;
  color: #ffffff;
  border-color: #38bdf8;
  box-shadow: 0 4px 12px rgba(29, 78, 216, 0.3);
}

.ds-editor-card {
  background: #0f172a;
  border: 1px solid #1e293b;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
}

.ds-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #1e293b;
  border-bottom: 1px solid #334155;
  padding: 10px 16px;
  gap: 12px;
  flex-wrap: wrap;
}

.ds-toolbar-left, .ds-toolbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.ds-btn-group {
  display: flex;
  gap: 4px;
}

.ds-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  border-radius: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.ds-btn-primary { background: #0284c7; color: #ffffff; }
.ds-btn-primary:hover { background: #0369a1; }

.ds-btn-secondary { background: #334155; color: #f8fafc; border: 1px solid #475569; }
.ds-btn-secondary:hover { background: #475569; }

.ds-btn-success { background: #059669; color: #ffffff; }
.ds-btn-success:hover { background: #047857; }

.ds-btn-danger { background: rgba(239, 68, 68, 0.15); color: #f87171; border: 1px solid rgba(239, 68, 68, 0.3); }
.ds-btn-danger:hover { background: rgba(239, 68, 68, 0.3); }

.ds-select-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  color: #cbd5e1;
}

.ds-select {
  background: #0f172a;
  border: 1px solid #475569;
  border-radius: 6px;
  color: #f8fafc;
  padding: 5px 8px;
  font-size: 0.82rem;
  outline: none;
}

.ds-select:focus {
  border-color: #38bdf8;
}

.ds-input, .ds-textarea {
  width: 100%;
  background: #0f172a;
  border: 1px solid #334155;
  border-radius: 6px;
  color: #f8fafc;
  padding: 8px 10px;
  font-size: 0.86rem;
  box-sizing: border-box;
}

.ds-input:focus, .ds-textarea:focus {
  border-color: #38bdf8;
  outline: none;
}

.ds-workspace-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  height: 640px;
  overflow: hidden;
}

.ds-canvas-wrap {
  position: relative;
  height: 100%;
  overflow: auto;
  background: #090d16;
  border-right: 1px solid #1e293b;
}

.ds-sidebar {
  background: #0f172a;
  height: 100%;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.ds-sidebar-header {
  padding: 12px 16px;
  border-bottom: 1px solid #1e293b;
  background: rgba(255, 255, 255, 0.02);
}

.ds-sidebar-header h4 {
  margin: 0;
  font-size: 0.92rem;
  color: #38bdf8;
}

.ds-sidebar-body {
  padding: 16px;
  flex: 1;
}

.ds-hint {
  font-size: 0.84rem;
  color: #94a3b8;
  line-height: 1.5;
  margin: 0;
}

.ds-field-group {
  margin-bottom: 14px;
}

.ds-field-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: #cbd5e1;
  margin-bottom: 4px;
}

.ds-attr-card {
  background: #090d16;
  border: 1px solid #334155;
  border-radius: 6px;
  padding: 8px;
}

.ds-icon-btn {
  background: transparent;
  border: none;
  color: #f87171;
  cursor: pointer;
  font-size: 1.1rem;
}

.ds-modal {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(6px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.ds-modal-content {
  background: #0f172a;
  border: 1px solid #334155;
  border-radius: 12px;
  max-width: 760px;
  width: 90%;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  color: #f8fafc;
  padding: 22px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.ds-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid #334155;
  padding-bottom: 12px;
  margin-bottom: 14px;
}

.ds-modal-header h3 {
  margin: 0;
  font-size: 1.12rem;
  color: #38bdf8;
}

.ds-modal-close {
  background: transparent;
  border: none;
  color: #cbd5e1;
  font-size: 1.3rem;
  cursor: pointer;
}

.ds-code-block {
  background: #060911;
  padding: 16px;
  border-radius: 6px;
  overflow-y: auto;
  flex: 1;
  font-family: monospace;
  font-size: 0.85rem;
  color: #f1f5f9;
  border: 1px solid #1e293b;
  margin: 0;
}

.ds-modal-footer {
  display: flex;
  justify-content: flex-end;
  margin-top: 16px;
}

/* ==========================================================================
   📐 STRUKTOGRAMM (DIN 66261) CSS
   ========================================================================== */

.sg-render-wrapper {
  padding: 28px;
  display: flex;
  justify-content: center;
  min-width: 600px;
}

.sg-container {
  width: 100%;
  max-width: 720px;
  background: #090d16;
  border: 2px solid #38bdf8;
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.sg-header-title {
  background: #1e293b;
  color: #cbd5e1;
  text-align: center;
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  padding: 6px 12px;
  border-bottom: 2px solid #38bdf8;
}

.sg-root-table {
  display: flex;
  flex-direction: column;
}

.sg-block {
  cursor: pointer;
  transition: background 0.12s ease;
  position: relative;
}

.sg-block.sg-selected {
  outline: 2px solid #fbbf24;
  z-index: 10;
}

.sg-instruction {
  background: #1e293b;
  border-bottom: 1px solid #334155;
  padding: 10px 14px;
}

.sg-instruction:hover {
  background: #253349;
}

.sg-text {
  font-family: monospace;
  font-size: 0.88rem;
  color: #f8fafc;
  line-height: 1.4;
}

.sg-if {
  display: flex;
  flex-direction: column;
  border-bottom: 1px solid #334155;
  background: #1e293b;
}

.sg-if-header {
  position: relative;
  height: 48px;
  background: #0f172a;
  border-bottom: 1px solid #334155;
}

.sg-if-svg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.sg-if-condition {
  position: absolute;
  top: 6px;
  left: 0;
  width: 100%;
  text-align: center;
  font-family: monospace;
  font-size: 0.85rem;
  font-weight: bold;
  color: #38bdf8;
  z-index: 2;
  pointer-events: none;
}

.sg-if-label-left {
  position: absolute;
  bottom: 4px;
  left: 12px;
  font-size: 0.72rem;
  font-weight: 800;
  color: #4ade80;
  z-index: 2;
  text-transform: uppercase;
}

.sg-if-label-right {
  position: absolute;
  bottom: 4px;
  right: 12px;
  font-size: 0.72rem;
  font-weight: 800;
  color: #f87171;
  z-index: 2;
  text-transform: uppercase;
}

.sg-if-branches {
  display: flex;
  width: 100%;
}

.sg-if-then {
  flex: 1;
  border-right: 1px solid #334155;
  display: flex;
  flex-direction: column;
}

.sg-if-else {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.sg-while, .sg-for {
  display: flex;
  flex-direction: column;
  border-bottom: 1px solid #334155;
  background: #1e293b;
}

.sg-while-header, .sg-for-header {
  background: #0f172a;
  padding: 8px 14px;
  border-bottom: 1px solid #334155;
  font-family: monospace;
  font-size: 0.85rem;
  font-weight: bold;
  color: #38bdf8;
}

.sg-badge-loop {
  color: #fbbf24;
  font-size: 0.76rem;
  font-weight: 800;
  margin-right: 6px;
}

.sg-while-body-wrap {
  display: flex;
  width: 100%;
}

.sg-while-gutter {
  width: 28px;
  background: #0f172a;
  border-right: 1px solid #334155;
  flex-shrink: 0;
}

.sg-while-body {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.sg-empty-block {
  padding: 8px;
  font-size: 0.75rem;
  color: #64748b;
  text-align: center;
  font-style: italic;
}