/* ================================================
   Optimal Sleep Schedule Calculator Styles
   Neobrutalism Design System v4.3
   ================================================ */

/* Global box-sizing */
.optimal-sleep-schedule-calculator-container,
.optimal-sleep-schedule-calculator-container *,
.optimal-sleep-schedule-calculator-container *::before,
.optimal-sleep-schedule-calculator-container *::after {
  box-sizing: border-box;
}

/* Light Mode (Default) */
.optimal-sleep-schedule-calculator-container {
  /* Background colors */
  --bg-primary: #f5f5f0;
  --bg-secondary: #fff;
  --bg-section: #fff;
  
  /* Borders */
  --border-color: #333;
  
  /* Text colors */
  --text-primary: #222;
  --text-secondary: #555;
  --text-light: #666;
  
  /* Brand colors */
  --color-accent: #3498db;
  --color-success: #27ae60;
  --color-warning: #f39c12;
  --color-danger: #e74c3c;
  --color-purple: #9b59b6;
  --color-teal: #1abc9c;
  --color-indigo: #5c6bc0;
  
  /* Shadows (neobrutalism) */
  --shadow-sm: 2px 2px 0 rgba(0,0,0,0.1);
  --shadow-md: 4px 4px 0 rgba(0,0,0,0.15);
  --shadow-lg: 8px 8px 0 rgba(0,0,0,0.15);
  
  /* Border radius */
  --radius-container: 8px;
  --radius-section: 6px;
  --radius-button: 4px;
  --radius-input: 4px;
  
  /* Input focus */
  --input-focus-bg: #fffacd;
  
  /* Header title */
  --title-color: #2c3e50;
  --title-shadow: 2px 2px 0 rgba(255,255,255,0.5);
  
  /* Button hover */
  --btn-hover-overlay: rgba(0,0,0,0.1);
  
  /* Copy button */
  --copy-btn-bg: #fff;
  --copy-btn-hover-bg: #f0f0f0;
  
  /* Optimal box gradient */
  --optimal-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --optimal-bg: #f8f9ff;
  
  /* Disabled state */
  --disabled-bg: #ccc;
  --disabled-text: #888;
}

/* System dark mode auto detection */
@media (prefers-color-scheme: dark) {
  .optimal-sleep-schedule-calculator-container:not(.dark):not(.light) {
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --bg-section: #2d2d2d;
    --border-color: #e0e0e0;
    --text-primary: #e8e8e8;
    --text-secondary: #b0b0b0;
    --text-light: #909090;
    --color-accent: #5dade2;
    --color-success: #52c77a;
    --color-warning: #f5b041;
    --color-danger: #ec7063;
    --color-purple: #af7ac5;
    --color-teal: #48d1cc;
    --color-indigo: #7986cb;
    --shadow-sm: 2px 2px 0 rgba(255,255,255,0.08);
    --shadow-md: 4px 4px 0 rgba(255,255,255,0.12);
    --shadow-lg: 8px 8px 0 rgba(255,255,255,0.12);
    --input-focus-bg: #3a3a3a;
    --title-color: #7fb3d5;
    --title-shadow: 2px 2px 0 rgba(0,0,0,0.5);
    --btn-hover-overlay: rgba(255,255,255,0.1);
    --copy-btn-bg: #3a3a3a;
    --copy-btn-hover-bg: #4a4a4a;
    --optimal-gradient: linear-gradient(135deg, #7986cb 0%, #9575cd 100%);
    --optimal-bg: #2a2a3a;
    --disabled-bg: #444;
    --disabled-text: #777;
  }
}

/* Manual dark mode */
.optimal-sleep-schedule-calculator-container.dark {
  --bg-primary: #1a1a1a;
  --bg-secondary: #2d2d2d;
  --bg-section: #2d2d2d;
  --border-color: #e0e0e0;
  --text-primary: #e8e8e8;
  --text-secondary: #b0b0b0;
  --text-light: #909090;
  --color-accent: #5dade2;
  --color-success: #52c77a;
  --color-warning: #f5b041;
  --color-danger: #ec7063;
  --color-purple: #af7ac5;
  --color-teal: #48d1cc;
  --color-indigo: #7986cb;
  --shadow-sm: 2px 2px 0 rgba(255,255,255,0.08);
  --shadow-md: 4px 4px 0 rgba(255,255,255,0.12);
  --shadow-lg: 8px 8px 0 rgba(255,255,255,0.12);
  --input-focus-bg: #3a3a3a;
  --title-color: #7fb3d5;
  --title-shadow: 2px 2px 0 rgba(0,0,0,0.5);
  --btn-hover-overlay: rgba(255,255,255,0.1);
  --copy-btn-bg: #3a3a3a;
  --copy-btn-hover-bg: #4a4a4a;
  --optimal-gradient: linear-gradient(135deg, #7986cb 0%, #9575cd 100%);
  --optimal-bg: #2a2a3a;
  --disabled-bg: #444;
  --disabled-text: #777;
}

/* Main Container */
.optimal-sleep-schedule-calculator-container {
  position: relative;
  max-width: 1000px;
  width: 100%;
  margin: 8px auto;
  padding: 8px;
  background: var(--bg-primary);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-container);
  box-shadow: var(--shadow-lg);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Malgun Gothic', sans-serif;
  color: var(--text-primary);
}

/* Header */
.ossc-header {
  text-align: center;
  padding: 12px 8px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
  position: relative;
}

.ossc-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--title-color);
  margin: 0 0 6px 0;
  text-shadow: var(--title-shadow);
}

.ossc-subtitle {
  font-size: 13.5px;
  color: var(--text-secondary);
  margin: 0;
}

/* Dark Mode Toggle */
.ossc-dark-mode-toggle {
  position: absolute;
  top: 1px;
  right: 1px;
  padding: 6px 10px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-button);
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: var(--shadow-sm);
  font-size: 15.5px;
  font-weight: 600;
  color: var(--text-primary);
  z-index: 10;
}

.ossc-dark-mode-toggle:hover {
  transform: translate(0.5px, 0.5px);
  box-shadow: 1.5px 1.5px 0 rgba(0,0,0,0.15);
}

.ossc-dark-mode-toggle:active {
  transform: translate(2px, 2px);
  box-shadow: none;
}

/* Main Grid - 2 Column Layout */
.ossc-main-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

/* Sections */
.ossc-section {
  background: var(--bg-section);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-section);
  padding: 8px;
  box-shadow: var(--shadow-md);
}

.ossc-section-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 12px 0;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
}

.ossc-section-title svg {
  color: var(--color-accent);
}

/* Mode Tabs */
.ossc-mode-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 12px;
  background: var(--bg-primary);
  padding: 4px;
  border-radius: var(--radius-button);
  border: 1px solid var(--border-color);
}

.ossc-mode-tab {
  flex: 1;
  padding: 8px 6px;
  font-size: 13px;
  font-weight: 600;
  font-family: inherit;
  background: transparent;
  border: none;
  border-radius: var(--radius-button);
  cursor: pointer;
  color: var(--text-secondary);
  transition: all 0.2s;
}

.ossc-mode-tab:hover {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.ossc-mode-tab.active {
  background: var(--color-accent);
  color: #fff;
  box-shadow: var(--shadow-sm);
}

/* Input Panels */
.ossc-input-panel {
  margin-bottom: 12px;
  padding: 10px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-section);
}

/* Labels */
.ossc-label {
  display: block;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

/* Time Input Group */
.ossc-time-input-group {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}

.ossc-time-input {
  flex: 1;
  text-align: center;
  font-size: 20px;
  font-weight: 700;
  font-family: 'Courier New', monospace;
}

.ossc-time-separator {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
}

/* Input Fields */
.ossc-input {
  width: 100%;
  padding: 10px;
  font-size: 14px;
  font-family: inherit;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-input);
  color: var(--text-primary);
  transition: all 0.2s;
}

.ossc-input:focus {
  outline: none;
  background: var(--input-focus-bg);
  border-color: var(--color-accent);
}

.ossc-input::placeholder {
  color: var(--text-light);
}

/* Quick Time Buttons */
.ossc-quick-times {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.ossc-quick-btn {
  padding: 6px 10px;
  font-size: 12.5px;
  font-weight: 600;
  font-family: 'Courier New', monospace;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-button);
  cursor: pointer;
  color: var(--text-primary);
  transition: all 0.2s;
  box-shadow: var(--shadow-sm);
}

.ossc-quick-btn:hover {
  background: var(--color-accent);
  color: #fff;
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0 rgba(0,0,0,0.15);
}

.ossc-quick-btn:active {
  transform: translate(1px, 1px);
  box-shadow: 1px 1px 0 rgba(0,0,0,0.1);
}

/* Quick button active highlight effect */
.ossc-quick-btn.clicked {
  background: var(--color-success);
  color: #fff;
  transform: scale(1.05);
}

/* Now Panel */
.ossc-now-info {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-section);
  margin-bottom: 10px;
}

.ossc-now-info svg {
  color: var(--color-accent);
}

.ossc-now-info span {
  font-size: 15px;
  color: var(--text-secondary);
}

.ossc-now-info strong {
  font-size: 20px;
  font-family: 'Courier New', monospace;
  color: var(--color-accent);
}

.ossc-now-desc {
  font-size: 13px;
  color: var(--text-light);
  margin: 0;
  text-align: center;
}

/* Input Groups */
.ossc-input-group {
  margin-bottom: 12px;
}

.ossc-hint {
  font-size: 12px;
  color: var(--text-light);
  margin: 4px 0 0 0;
}

/* Slider */
.ossc-slider-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.ossc-slider {
  flex: 1;
  height: 8px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  cursor: pointer;
}

.ossc-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  background: var(--color-accent);
  border: 2px solid var(--border-color);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}

.ossc-slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  background: var(--color-accent);
  border: 2px solid var(--border-color);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}

.ossc-slider-value {
  min-width: 45px;
  font-size: 14px;
  font-weight: 600;
  font-family: 'Courier New', monospace;
  color: var(--color-accent);
  text-align: right;
}

/* Cycle Buttons */
.ossc-cycle-btns {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
}

.ossc-cycle-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 10px 6px;
  font-size: 14px;
  font-weight: 700;
  font-family: inherit;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-button);
  cursor: pointer;
  color: var(--text-primary);
  transition: all 0.2s;
  box-shadow: var(--shadow-sm);
}

.ossc-cycle-btn span {
  font-size: 11px;
  font-weight: 400;
  color: var(--text-light);
  margin-top: 2px;
}

.ossc-cycle-btn:hover {
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0 rgba(0,0,0,0.15);
}

.ossc-cycle-btn.active {
  background: var(--color-purple);
  color: #fff;
  border-color: var(--border-color);
}

.ossc-cycle-btn.active span {
  color: rgba(255,255,255,0.8);
}

/* Buttons */
.ossc-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 11px 16px;
  font-size: 15px;
  font-weight: 600;
  font-family: inherit;
  border-radius: var(--radius-button);
  cursor: pointer;
  transition: all 0.2s ease;
  color: #fff;
}

.ossc-btn-primary {
  width: 100%;
  background: var(--color-accent);
  border: 1.5px solid var(--border-color);
  box-shadow: var(--shadow-md);
  margin-bottom: 10px;
}

.ossc-btn-primary:hover {
  filter: brightness(1.1);
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 rgba(0,0,0,0.2);
}

.ossc-btn-primary:active {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 rgba(0,0,0,0.15);
}

.ossc-btn-group {
  display: flex;
  gap: 8px;
}

.ossc-btn-secondary,
.ossc-btn-warning {
  flex: 1;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  font-size: 13.5px;
  padding: 9px 12px;
}

.ossc-btn-secondary {
  background: var(--color-purple);
}

.ossc-btn-warning {
  background: var(--color-warning);
}

.ossc-btn-secondary:hover,
.ossc-btn-warning:hover {
  filter: brightness(1.1);
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0 rgba(0,0,0,0.2);
}

.ossc-btn-secondary:active,
.ossc-btn-warning:active {
  transform: translate(1px, 1px);
  box-shadow: 1px 1px 0 rgba(0,0,0,0.1);
}

.ossc-btn-success {
  width: 100%;
  background: var(--color-success);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  margin-bottom: 12px;
}

.ossc-btn-success:hover:not(:disabled) {
  filter: brightness(1.1);
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0 rgba(0,0,0,0.2);
}

.ossc-btn-success:active:not(:disabled) {
  transform: translate(1px, 1px);
  box-shadow: 1px 1px 0 rgba(0,0,0,0.1);
}

/* Disabled button state */
.ossc-btn:disabled {
  background: var(--disabled-bg);
  color: var(--disabled-text);
  cursor: not-allowed;
  transform: none;
  box-shadow: var(--shadow-sm);
}

.ossc-btn:disabled:hover {
  filter: none;
  transform: none;
  box-shadow: var(--shadow-sm);
}

/* Optimal Box */
.ossc-optimal-box {
  background: var(--optimal-bg);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-section);
  padding: 16px;
  margin-bottom: 12px;
  text-align: center;
  box-shadow: var(--shadow-md);
}

.ossc-optimal-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.ossc-optimal-time {
  font-size: 42px;
  font-weight: 700;
  font-family: 'Courier New', monospace;
  background: var(--optimal-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 6px;
}

.ossc-optimal-duration {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.ossc-optimal-quality {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.ossc-quality-stars {
  font-size: 16px;
  color: #f1c40f;
}

.ossc-quality-text {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-success);
}

/* Times List */
.ossc-times-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 12px;
}

.ossc-time-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-button);
  box-shadow: var(--shadow-sm);
  transition: all 0.2s;
}

.ossc-time-item:hover:not(.ossc-placeholder) {
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0 rgba(0,0,0,0.15);
}

.ossc-time-item.optimal {
  background: var(--optimal-bg);
  border-width: 2px;
}

.ossc-time-item.ossc-placeholder {
  opacity: 0.7;
  justify-content: center;
}

.ossc-empty-message {
  font-size: 13px;
  color: var(--text-light);
  text-align: center;
}

.ossc-time-cycles {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  min-width: 60px;
}

.ossc-time-value {
  font-size: 18px;
  font-weight: 700;
  font-family: 'Courier New', monospace;
  color: var(--color-accent);
}

.ossc-time-duration {
  font-size: 13px;
  color: var(--text-light);
  min-width: 70px;
  text-align: right;
}

/* Quality Guide */
.ossc-quality-guide {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 10px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-section);
  margin-bottom: 12px;
}

.ossc-quality-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12.5px;
  color: var(--text-secondary);
}

.ossc-quality-badge {
  font-size: 12px;
  padding: 2px 6px;
  border-radius: 3px;
  min-width: 70px;
  text-align: center;
}

.ossc-quality-badge.excellent {
  background: rgba(39, 174, 96, 0.15);
  color: var(--color-success);
}

.ossc-quality-badge.good {
  background: rgba(52, 152, 219, 0.15);
  color: var(--color-accent);
}

.ossc-quality-badge.fair {
  background: rgba(243, 156, 18, 0.15);
  color: var(--color-warning);
}

/* Info Box */
.ossc-info-box {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-section);
  padding: 12px;
  box-shadow: var(--shadow-sm);
}

.ossc-info-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.ossc-info-title svg {
  color: var(--color-teal);
}

.ossc-info-list {
  margin: 0;
  padding-left: 20px;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.ossc-info-list li {
  margin-bottom: 4px;
}

.ossc-info-list li:last-child {
  margin-bottom: 0;
}

/* Toast Notification */
.ossc-toast {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background: var(--color-success);
  color: #fff;
  padding: 14px 20px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-button);
  box-shadow: var(--shadow-md);
  font-size: 14px;
  font-weight: 600;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.3s ease;
  pointer-events: none;
  z-index: 1000;
  max-width: 300px;
}

.ossc-toast.show {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

/* Responsive Design */
@media (max-width: 768px) {
  .optimal-sleep-schedule-calculator-container {
    margin: 7px;
    padding: 7px;
  }

  .ossc-main-grid {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .ossc-title {
    font-size: 24px;
  }

  .ossc-subtitle {
    font-size: 12.5px;
  }

  .ossc-section {
    padding: 7px;
  }

  .ossc-mode-tabs {
    flex-wrap: wrap;
  }

  .ossc-mode-tab {
    font-size: 12px;
    padding: 6px 4px;
  }

  .ossc-cycle-btns {
    grid-template-columns: repeat(2, 1fr);
  }

  .ossc-optimal-time {
    font-size: 36px;
  }

  .ossc-dark-mode-toggle {
    top: 12px;
    right: 12px;
    font-size: 14px;
    padding: 5px 8px;
  }

  .ossc-toast {
    right: 10px;
    left: 10px;
    max-width: none;
  }
}

@media (max-width: 480px) {
  .optimal-sleep-schedule-calculator-container {
    margin: 6px;
    padding: 6px;
    border-width: 1px;
  }

  .ossc-title {
    font-size: 22px;
  }

  .ossc-section {
    padding: 6px;
  }

  .ossc-btn-group {
    flex-direction: column;
    gap: 6px;
  }

  .ossc-time-input {
    font-size: 18px;
  }

  .ossc-time-separator {
    font-size: 20px;
  }

  .ossc-quick-times {
    justify-content: center;
  }

  .ossc-optimal-time {
    font-size: 32px;
  }

  .ossc-time-value {
    font-size: 16px;
  }
}