/* ============================================
   PROJEKTVERWALTUNG - STYLE SYSTEM
   Modernes CSS mit Variablen und Reset
   Farben: Orange (hsl(31, 86%, 54%))
   Schrift: Urbanist
   ============================================ */

/* === CSS VARIABLEN === */
:root {
  /* Primärfarben - Orange */
  --primary: hsl(31, 86%, 54%);
  --primary-dark: hsl(31, 86%, 45%);
  --primary-light: hsl(31, 86%, 65%);
  --primary-50: hsl(31, 86%, 95%);
  --primary-100: hsl(31, 86%, 90%);
  --surface-2: hsl(0, 0%, 97%);
  --surface-raised: hsl(0, 0%, 99%);
  
  /* Grautöne */
  --gray-50: hsl(0, 0%, 98%);
  --gray-100: hsl(0, 0%, 96%);
  --gray-200: hsl(0, 0%, 92%);
  --gray-300: hsl(0, 0%, 85%);
  --gray-400: hsl(0, 0%, 70%);
  --gray-500: hsl(0, 0%, 55%);
  --gray-600: hsl(0, 0%, 45%);
  --gray-700: hsl(0, 0%, 35%);
  --gray-800: hsl(0, 0%, 25%);
  --gray-900: hsl(0, 0%, 15%);
  
  /* Semantische Farben */
  --bg: hsl(0, 0%, 98%);
  --surface: hsl(0, 0%, 100%);
  --border: hsl(0, 0%, 90%);
  --text: hsl(0, 0%, 15%);
  --text-muted: hsl(0, 0%, 50%);
  
  /* Schrift */
  --font-sans: 'Urbanist', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', monospace;
  
  /* Font-Größen */
  --font-size-xs: 1.2rem;
  --font-size-sm: 1.4rem;
  --font-size-base: 1.6rem;
  --font-size-lg: 1.8rem;
  --font-size-xl: 2.0rem;
  --font-size-2xl: 2.4rem;
  --font-size-3xl: 3.0rem;
  
  /* Abstände */
  --spacing-xs: 0.4rem;
  --spacing-sm: 0.8rem;
  --spacing-md: 1.6rem;
  --spacing-lg: 2.4rem;
  --spacing-xl: 3.2rem;
  --spacing-2xl: 4.8rem;
  
  /* Border Radius */
  --radius: 0.8rem;
  --radius-sm: 0.4rem;
  --radius-lg: 1.2rem;
  
  /* Schatten */
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);

  /* Monatsansicht: vertikale Luecke zwischen gestapelten Zuweisungen */
  --calendar-month-entry-gap-minimal-rem: 0.06;
  --calendar-month-entry-gap-normal-rem: 0.16;
}

/* === RESET & BASE === */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 62.5%; /* 1rem = 10px */
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(239, 139, 35, 0.08), transparent 30%),
    radial-gradient(circle at top right, rgba(17, 17, 17, 0.04), transparent 24%),
    linear-gradient(180deg, #fafafa 0%, #f4f4f1 100%);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* === TYPOGRAFIE === */
h1, h2, h3, h4, h5, h6 {
  margin: 0 0 var(--spacing-md) 0;
  font-weight: 600;
  line-height: 1.3;
  color: var(--text);
}

h1 {
  font-size: var(--font-size-3xl);
}

h2 {
  font-size: var(--font-size-2xl);
}

h3 {
  font-size: var(--font-size-xl);
}

h4, h5, h6 {
  font-size: var(--font-size-lg);
}

p {
  margin: 0 0 var(--spacing-md) 0;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--primary-dark);
}

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
  font-family: var(--font-sans);
  border: 1px solid var(--border);
  border-radius: 1rem;
  background: linear-gradient(180deg, var(--surface-raised) 0%, var(--surface) 100%);
  color: var(--text);
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease,
    border-color 0.18s ease, color 0.18s ease;
  white-space: nowrap;
  text-decoration: none;
}

.btn:hover {
  background: linear-gradient(180deg, #ffffff 0%, var(--gray-100) 100%);
  border-color: var(--gray-300);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.btn:active {
  transform: translateY(0);
}

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

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

.btn-secondary {
  background: linear-gradient(180deg, var(--gray-100) 0%, var(--gray-200) 100%);
  border-color: var(--gray-300);
}

.btn-secondary:hover {
  background: linear-gradient(180deg, #f8f8f8 0%, var(--gray-300) 100%);
}

.btn-danger {
  background: #e74c3c;
  color: white;
  border-color: #c0392b;
}

.btn-danger:hover {
  background: #c0392b;
  border-color: #a93226;
  color: white;
}

.btn-success {
  background: #27ae60;
  color: white;
  border-color: #219150;
}

.btn-success:hover {
  background: #219150;
  border-color: #1b7943;
  color: white;
}

.btn-icon {
  padding: var(--spacing-sm);
  width: 3.6rem;
  height: 3.6rem;
}

.btn:focus-visible,
.form-input:focus-visible,
select.form-input:focus-visible,
.color-swatch:focus-visible {
  outline: 3px solid rgba(239, 139, 35, 0.28);
  outline-offset: 2px;
}

/* === FORMS === */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text);
}

.form-input,
.form-input-color,
select.form-input {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-base);
  font-family: var(--font-sans);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-input:focus,
select.form-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(239, 139, 35, 0.12);
}

.color-picker {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.color-preview {
  width: 100%;
  max-width: 10rem;
  height: 4rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #ef8d25;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.08);
}

.color-swatches {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.color-picker-fallback {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

.color-picker-fallback .form-input-color {
  width: 4.2rem;
  height: 3.2rem;
  padding: 0.2rem;
}

.color-swatch {
  width: 2.8rem;
  height: 2.8rem;
  border: 2px solid transparent;
  border-radius: 0.6rem;
  cursor: pointer;
  padding: 0;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.color-swatch:hover {
  transform: translateY(-1px);
}

.color-swatch.active {
  border-color: var(--text);
  box-shadow: 0 0 0 2px var(--primary);
}

.form-input-color {
  height: 4rem;
  cursor: pointer;
  padding: var(--spacing-xs);
}

textarea.form-input {
  resize: vertical;
  min-height: 8rem;
  line-height: 1.5;
}

select.form-input {
  cursor: pointer;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23555' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 3.5rem;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.project-picker {
  position: relative;
}

.project-picker-native {
  position: absolute;
  inset: auto auto auto 0;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.project-picker-helper {
  margin-top: var(--spacing-xs);
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

.project-picker-recent {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: var(--spacing-sm);
}

.project-picker-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  border: 1px solid var(--border);
  background: var(--gray-100);
  color: var(--text);
  border-radius: 999px;
  padding: 0.45rem 1rem;
  font: inherit;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.project-picker-chip:hover {
  background: #fff4e8;
  border-color: rgba(239, 139, 35, 0.35);
  transform: translateY(-1px);
}

.project-picker-chip-label {
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  padding: 0;
  cursor: pointer;
}

.project-picker-chip-remove {
  border: 0;
  background: transparent;
  color: var(--text-muted);
  width: 2rem;
  height: 2rem;
  padding: 0;
  border-radius: 999px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  line-height: 1;
}

.project-picker-chip-remove:hover {
  background: rgba(17, 24, 39, 0.08);
  color: var(--text);
}

.project-picker-results {
  position: absolute;
  z-index: 30;
  top: calc(100% + 0.6rem);
  left: 0;
  right: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.project-picker-section {
  padding: 0.8rem;
}

.project-picker-section + .project-picker-section {
  border-top: 1px solid var(--gray-200);
}

.project-picker-section-title {
  display: block;
  margin-bottom: 0.6rem;
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.project-picker-option {
  width: 100%;
  border: 0;
  background: transparent;
  color: var(--text);
  font: inherit;
  padding: 0.9rem 1rem;
  text-align: left;
  border-radius: 0.8rem;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.project-picker-option:hover,
.project-picker-option.is-highlighted {
  background: #fff4e8;
}

.project-picker-option-name {
  font-weight: 600;
}

.project-picker-option-meta {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

.project-picker-empty {
  padding: 1rem;
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

/* === CONTAINER === */
.container {
  width: 100%;
  max-width: min(160rem, calc(100vw - 3.2rem));
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* === UTILITY === */
.u-full-width {
  width: 100%;
}

.u-max-full-width {
  max-width: 100%;
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .container {
    padding: 0 var(--spacing-sm);
  }
  
  html {
    font-size: 56.25%; /* 1rem = 9px auf kleineren Bildschirmen */
  }
}