/* Modern CSS for Schnittoptimierung */
:root {
  --primary-color: #3a7ca5;
  --primary-dark: #2c6384;
  --secondary-color: #4a934a;
  --text-color: #333333;
  --light-text: #666666;
  --bg-color: #ffffff;
  --light-bg: #f8f8f8;
  --border-color: #e0e0e0;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  --border-radius: 8px;
  --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --transition: all 0.3s ease;
  
  /* Dark mode colors */
  --dark-bg: #1e2328;
  --dark-card-bg: #2d333b;
  --dark-text: #e6e6e6;
  --dark-border: #444444;
  --dark-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

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

body {
  font-family: var(--font-family);
  color: var(--text-color);
  background-color: var(--light-bg);
  line-height: 1.6;
  transition: var(--transition);
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Header styles */
header {
  background-color: var(--primary-color);
  color: white;
  padding: 1rem 0;
  box-shadow: var(--shadow);
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header h1 {
  font-size: 1.5rem;
  margin: 0;
}

/* Card styles */
.card {
  background-color: var(--bg-color);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  margin-bottom: 1.5rem;
  overflow: hidden;
  transition: var(--transition);
}

.card-header {
  background-color: var(--light-bg);
  padding: 0.8rem 1.2rem;
  border-bottom: 1px solid var(--border-color);
}

.card-header h2 {
  font-size: 1.2rem;
  margin: 0;
  color: var(--primary-color);
}

.card-body {
  padding: 1.2rem;
}

/* Grid layout */
.grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 1.5rem;
}

@media (max-width: 768px) {
  .grid {
    grid-template-columns: 1fr;
  }
}

/* Form elements */
.input-group {
  margin-bottom: 1rem;
  display: flex;
  flex-direction: column;
}

.input-group label {
  margin-bottom: 0.4rem;
  font-weight: 500;
}

input[type="number"] {
  padding: 0.6rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-size: 1rem;
  transition: var(--transition);
}

input[type="number"]:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(58, 124, 165, 0.2);
}

/* Button styles */
.btn {
  padding: 0.7rem 1.2rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.btn i {
  margin-right: 0.5rem;
}

.btn.primary {
  background-color: var(--primary-color);
  color: white;
}

.btn.primary:hover {
  background-color: var(--primary-dark);
}

#dark-mode-toggle {
  background: transparent;
  border: none;
  color: white;
  font-size: 1.2rem;
  cursor: pointer;
  padding: 0.3rem;
  border-radius: 50%;
  transition: var(--transition);
}

#dark-mode-toggle:hover {
  background-color: rgba(255, 255, 255, 0.2);
}

/* Material selection styles */
.material-selection {
  max-height: 600px;
  overflow-y: auto;
}

.accordion-section {
  margin-bottom: 0.5rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  overflow: hidden;
}

.accordion-header {
  padding: 0.8rem 1rem;
  background-color: var(--light-bg);
  cursor: pointer;
  display: flex;
  align-items: center;
  transition: var(--transition);
}

.accordion-header:hover {
  background-color: #f0f0f0;
}

.accordion-header i {
  margin-right: 0.5rem;
  transition: var(--transition);
}

.accordion-header.active {
  background-color: var(--primary-color);
  color: white;
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.schnittbox {
  padding: 0.8rem;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
}

.schnittbox:last-child {
  border-bottom: none;
}

.schnittbox input[type="checkbox"] {
  margin-right: 0.5rem;
}

.schnittbox label {
  flex: 1;
}

.schnittbox input[type="number"] {
  width: 60px;
  text-align: center;
}

/* SVG container */
#svgContainer {
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
}

#svgContainer svg {
  width: 100%;
  height: auto;
  border-radius: var(--border-radius);
  background-color: white;
  box-shadow: var(--shadow);
}

/* Stats container */
.stats-container {
  margin-top: 1.5rem;
  padding: 1rem;
  background-color: var(--light-bg);
  border-radius: var(--border-radius);
}

.stat-item {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-color);
}

.stat-item.highlight {
  font-weight: bold;
  color: var(--secondary-color);
}

.progress {
  margin-top: 1rem;
  background-color: #e0e0e0;
  border-radius: 4px;
  height: 20px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background-color: var(--secondary-color);
  color: white;
  text-align: center;
  line-height: 20px;
  transition: width 0.5s ease;
}

/* Alert styles */
.alert {
  padding: 1rem;
  margin: 1rem 0;
  border-radius: var(--border-radius);
  background-color: #fff3cd;
  border-left: 4px solid #ffc107;
  color: #856404;
}

.alert i {
  margin-right: 0.5rem;
}

/* Results container */
.results-container {
  margin-top: 1.5rem;
}

/* Footer styles */
footer {
  background-color: var(--primary-color);
  color: white;
  padding: 1rem 0;
  margin-top: 2rem;
}

footer a {
  color: white;
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

/* Dark mode */
body.dark-mode {
  background-color: var(--dark-bg);
  color: var(--dark-text);
}

body.dark-mode .card {
  background-color: var(--dark-card-bg);
  box-shadow: var(--dark-shadow);
}

body.dark-mode .card-header {
  background-color: rgba(0, 0, 0, 0.2);
  border-bottom-color: var(--dark-border);
}

body.dark-mode .accordion-section {
  border-color: var(--dark-border);
}

body.dark-mode .accordion-header:not(.active) {
  background-color: rgba(0, 0, 0, 0.2);
  color: var(--dark-text);
}

body.dark-mode .accordion-header:hover:not(.active) {
  background-color: rgba(0, 0, 0, 0.3);
}

body.dark-mode .schnittbox {
  border-bottom-color: var(--dark-border);
}

body.dark-mode input[type="number"] {
  background-color: var(--dark-bg);
  border-color: var(--dark-border);
  color: var(--dark-text);
}

body.dark-mode .stats-container {
  background-color: rgba(0, 0, 0, 0.2);
}

body.dark-mode .stat-item {
  border-bottom-color: var(--dark-border);
}

body.dark-mode #svgContainer svg {
  background-color: var(--dark-card-bg);
}

body.dark-mode .progress {
  background-color: #