/* ============================================
   Medication Dosage Interval Calculator
   Multi-medication with Timeline
   Neobrutalism Design System
   ============================================ */

/* Global box-sizing */
.medication-dosage-interval-calculator-container,
.medication-dosage-interval-calculator-container *,
.medication-dosage-interval-calculator-container *::before,
.medication-dosage-interval-calculator-container *::after {
  box-sizing: border-box;
}

/* ============================================
   CSS Variables - Light Mode (Default)
   ============================================ */
.medication-dosage-interval-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;
  
  /* 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 background */
  --btn-hover-overlay: rgba(0,0,0,0.1);
  
  /* Timeline specific */
  --timeline-bg: #e8e8e3;
  --timeline-grid: rgba(0,0,0,0.08);
  --timeline-now: #e74c3c;
}

/* ============================================
   CSS Variables - Manual Dark Mode
   ============================================ */
.medication-dosage-interval-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;
  --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);
  --timeline-bg: #252525;
  --timeline-grid: rgba(255,255,255,0.08);
  --timeline-now: #ec7063;
}

/* ============================================
   CSS Variables - System Dark Mode Auto Detection
   ============================================ */
@media (prefers-color-scheme: dark) {
  .medication-dosage-interval-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;
    --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);
    --timeline-bg: #252525;
    --timeline-grid: rgba(255,255,255,0.08);
    --timeline-now: #ec7063;
  }
}

/* ============================================
   Main Container
   ============================================ */
.medication-dosage-interval-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);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Malgun Gothic', sans-serif;
  color: var(--text-primary);
  box-shadow: var(--shadow-lg);
  line-height: 1.5;
}

/* ============================================
   Dark Mode Toggle Button - Gap aligned with container
   ============================================ */
.dark-mode-toggle {
  position: absolute;
  top: 18px;
  right: 18px;
  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: 17.5px;
  font-weight: 600;
  color: var(--text-primary);
  z-index: 10;
}

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

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

/* ============================================
   Header Section - Adjusted padding for toggle
   ============================================ */
.calculator-header {
  text-align: center;
  margin-bottom: 8px;
  padding: 8px;
  padding-right: 55px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-section);
  box-shadow: var(--shadow-md);
}

.calculator-header .main-title {
  font-size: 30px;
  font-weight: 800;
  color: var(--title-color);
  margin: 0 0 4px 0;
  text-shadow: var(--title-shadow);
}

.calculator-header .subtitle {
  font-size: 15.5px;
  color: var(--text-secondary);
  margin: 0;
}

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

/* ============================================
   Input & Result Sections
   ============================================ */
.input-section,
.result-section {
  background: var(--bg-section);
  padding: 8px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-section);
  box-shadow: var(--shadow-md);
}

.section-header {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 8px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border-color);
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
}

.section-header svg {
  width: 18px;
  height: 18px;
  stroke: var(--color-accent);
  flex-shrink: 0;
}

.med-count {
  margin-left: auto;
  font-size: 14px;
  padding: 2px 8px;
  background: var(--color-accent);
  color: #fff;
  border-radius: 10px;
}

/* ============================================
   Input Groups
   ============================================ */
.input-group {
  margin-bottom: 8px;
}

.input-group label {
  display: block;
  margin-bottom: 4px;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--text-primary);
}

.input-group input[type="text"],
.input-group input[type="date"],
.input-group input[type="time"],
.input-group input[type="number"] {
  width: 100%;
  padding: 7px 10px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-input);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 16px;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Malgun Gothic', sans-serif;
  transition: all 0.2s;
  box-shadow: var(--shadow-sm);
}

.input-group input:focus {
  outline: none;
  border-color: var(--color-accent);
  background: var(--input-focus-bg);
  box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.1);
}

/* Input row */
.input-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}

/* Interval input wrapper */
.interval-input-wrapper {
  display: flex;
  align-items: center;
  gap: 6px;
}

.interval-input-wrapper input[type="number"] {
  width: 65px;
  text-align: center;
  font-family: 'Courier New', monospace;
  font-weight: 600;
}

.interval-input-wrapper .unit-label {
  font-size: 15px;
  color: var(--text-secondary);
  font-weight: 500;
}

/* ============================================
   Quick Interval Buttons
   ============================================ */
.quick-interval-section {
  margin-bottom: 8px;
}

.quick-interval-section > label {
  display: block;
  margin-bottom: 4px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-primary);
}

.quick-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.quick-btn {
  padding: 5px 10px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-button);
  font-size: 14.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
  box-shadow: var(--shadow-sm);
}

.quick-btn:hover {
  background: var(--color-accent);
  color: #fff;
  transform: translate(0.5px, 0.5px);
  box-shadow: 1.5px 1.5px 0 rgba(0,0,0,0.15);
}

.quick-btn:active {
  transform: translate(2px, 2px);
  box-shadow: none;
}

.quick-btn.active {
  background: var(--color-accent);
  color: #fff;
}

/* ============================================
   Color Picker
   ============================================ */
.color-picker {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.color-btn {
  width: 28px;
  height: 28px;
  border: 2px solid transparent;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.15s;
  box-shadow: var(--shadow-sm);
}

.color-btn:hover {
  transform: scale(1.1);
}

.color-btn.active {
  border-color: var(--border-color);
  transform: scale(1.15);
  box-shadow: 0 0 0 2px var(--bg-primary);
}

/* ============================================
   Buttons
   ============================================ */
.add-btn {
  width: 100%;
  padding: 10px;
  margin-top: 8px;
  background: var(--color-accent);
  color: #fff;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-button);
  font-size: 17px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.15s;
  box-shadow: 4px 4px 0 rgba(0,0,0,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.add-btn svg {
  stroke: #fff;
}

.add-btn:hover {
  filter: brightness(1.05);
  transform: translate(1px, 1px);
  box-shadow: 3px 3px 0 rgba(0,0,0,0.2);
}

.add-btn:active {
  transform: translate(4px, 4px);
  box-shadow: none;
}

.button-group {
  display: flex;
  gap: 6px;
  margin-top: 6px;
}

.button-group.four-cols {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
}

.sample-btn,
.reset-btn,
.save-btn,
.load-btn {
  flex: 1;
  padding: 6px 6px;
  font-size: 14px;
  font-weight: 600;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-button);
  cursor: pointer;
  transition: all 0.15s;
  box-shadow: 2px 2px 0 rgba(0,0,0,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 3px;
  white-space: nowrap;
}

.sample-btn {
  background: var(--color-success);
  color: #fff;
}

.sample-btn svg,
.reset-btn svg,
.save-btn svg,
.load-btn svg {
  stroke: #fff;
  width: 13px;
  height: 13px;
  flex-shrink: 0;
}

.reset-btn {
  background: var(--color-danger);
  color: #fff;
}

.save-btn {
  background: var(--color-purple);
  color: #fff;
}

.load-btn {
  background: var(--color-teal);
  color: #fff;
}

.sample-btn:hover,
.reset-btn:hover,
.save-btn:hover,
.load-btn:hover {
  filter: brightness(1.05);
  transform: translate(0.5px, 0.5px);
  box-shadow: 1.5px 1.5px 0 rgba(0,0,0,0.2);
}

.sample-btn:active,
.reset-btn:active,
.save-btn:active,
.load-btn:active {
  transform: translate(2px, 2px);
  box-shadow: none;
}

/* Hidden file input */
.hidden-input {
  display: none;
}

/* ============================================
   Medication List - 2 Column Grid
   ============================================ */
.med-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  max-height: 380px;
  overflow-y: auto;
  padding-right: 2px;
}

.med-list::-webkit-scrollbar {
  width: 4px;
}

.med-list::-webkit-scrollbar-track {
  background: var(--bg-primary);
  border-radius: 2px;
}

.med-list::-webkit-scrollbar-thumb {
  background: var(--text-light);
  border-radius: 2px;
}

.empty-state {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--text-light);
  padding: 30px 20px;
  min-height: 180px;
}

.empty-state svg {
  stroke: var(--text-light);
  opacity: 0.5;
  margin-bottom: 10px;
}

.empty-state p {
  font-size: 16px;
  margin: 0;
  line-height: 1.6;
}

.empty-state.small {
  min-height: auto;
  padding: 20px;
}

.empty-state.small p {
  font-size: 15px;
}

/* Medication Card - Compact for 2-column */
.med-card {
  padding: 8px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-section);
  position: relative;
  transition: all 0.2s;
}

.med-card:hover {
  box-shadow: var(--shadow-sm);
}

.med-card-header {
  display: flex;
  align-items: center;
  gap: 5px;
  margin-bottom: 4px;
}

.med-color-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.med-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.med-delete-btn {
  width: 18px;
  height: 18px;
  padding: 0;
  background: var(--color-danger);
  color: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-button);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
  flex-shrink: 0;
}

.med-delete-btn:hover {
  filter: brightness(1.1);
  transform: scale(1.05);
}

.med-delete-btn svg {
  width: 10px;
  height: 10px;
  stroke: #fff;
}

.med-info {
  display: flex;
  flex-direction: column;
  gap: 1px;
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 5px;
}

.med-info-item {
  display: flex;
  align-items: center;
  gap: 3px;
}

.med-info-label {
  color: var(--text-light);
}

.med-status {
  padding: 4px 5px;
  border-radius: var(--radius-button);
  font-size: 12px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 3px;
}

.med-status.can-take {
  background: var(--color-success);
  color: #fff;
}

.med-status.wait {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

.med-status.soon {
  background: var(--color-warning);
  color: #fff;
}

.med-countdown {
  font-family: 'Courier New', monospace;
  font-weight: 700;
  font-size: 11px;
}

.med-take-btn {
  padding: 2px 5px;
  background: var(--color-success);
  color: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-button);
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
  flex-shrink: 0;
}

.med-take-btn:hover {
  filter: brightness(1.1);
}

/* ============================================
   Timeline Section
   ============================================ */
.timeline-section {
  margin-top: 8px;
  background: var(--bg-section);
  padding: 8px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-section);
  box-shadow: var(--shadow-md);
}

.timeline-controls {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
}

.timeline-nav-btn {
  width: 26px;
  height: 26px;
  padding: 0;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-button);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}

.timeline-nav-btn:hover {
  background: var(--color-accent);
}

.timeline-nav-btn:hover svg {
  stroke: #fff;
}

.timeline-nav-btn svg {
  stroke: var(--text-primary);
}

.timeline-date {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  min-width: 80px;
  text-align: center;
}

.timeline-wrapper {
  margin-top: 8px;
}

.timeline-hours {
  display: flex;
  justify-content: space-between;
  padding: 0 2px;
  margin-bottom: 4px;
}

.timeline-hours span {
  font-size: 12px;
  color: var(--text-light);
  width: 30px;
  text-align: center;
}

.timeline-hours span:first-child {
  text-align: left;
}

.timeline-hours span:last-child {
  text-align: right;
}

.timeline-container {
  position: relative;
  background: var(--timeline-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-button);
  min-height: 80px;
  overflow: hidden;
}

/* Grid lines */
.timeline-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: repeating-linear-gradient(
    90deg,
    var(--timeline-grid) 0px,
    var(--timeline-grid) 1px,
    transparent 1px,
    transparent 12.5%
  );
  pointer-events: none;
}

/* Current time indicator */
.timeline-now {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--timeline-now);
  z-index: 5;
  display: none;
}

.timeline-now::before {
  content: '현재';
  position: absolute;
  top: -16px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 11px;
  color: var(--timeline-now);
  font-weight: 600;
  white-space: nowrap;
}

.timeline-tracks {
  padding: 8px 0;
}

.timeline-track {
  position: relative;
  height: 24px;
  margin: 4px 0;
}

.timeline-event {
  position: absolute;
  height: 20px;
  border-radius: 3px;
  display: flex;
  align-items: center;
  padding: 0 6px;
  font-size: 12px;
  font-weight: 600;
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  cursor: pointer;
  transition: all 0.15s;
  border: 1px solid rgba(0,0,0,0.2);
}

.timeline-event:hover {
  transform: translateY(-1px);
  box-shadow: 0 2px 4px rgba(0,0,0,0.2);
  z-index: 10;
}

.timeline-event.past {
  opacity: 0.5;
}

.timeline-event.next {
  border-width: 2px;
  border-style: dashed;
}

.timeline-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--border-color);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
  color: var(--text-secondary);
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

/* ============================================
   Upcoming Section
   ============================================ */
.upcoming-section {
  margin-top: 8px;
  background: var(--bg-section);
  padding: 8px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-section);
  box-shadow: var(--shadow-md);
}

.upcoming-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 6px;
}

.upcoming-card {
  padding: 8px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-section);
  border-left: 4px solid;
}

.upcoming-card-header {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 2px;
}

.upcoming-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
}

.upcoming-time {
  font-size: 20px;
  font-weight: 800;
  font-family: 'Courier New', monospace;
  color: var(--color-accent);
}

.upcoming-remaining {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 2px;
}

.upcoming-card.can-take {
  border-left-color: var(--color-success);
}

.upcoming-card.can-take .upcoming-time {
  color: var(--color-success);
}

/* ============================================
   Info Section
   ============================================ */
.info-section {
  margin-top: 8px;
  background: var(--bg-section);
  padding: 8px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-section);
  box-shadow: var(--shadow-md);
}

.info-content {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.info-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 15px;
  color: var(--text-secondary);
}

.info-icon {
  font-size: 16px;
  flex-shrink: 0;
}

/* ============================================
   Toast Notification
   ============================================ */
.toast {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-button);
  padding: 10px 15px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 10px;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.3s;
  z-index: 1000;
  max-width: 300px;
  pointer-events: none;
}

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

.toast svg {
  stroke: var(--color-success);
  flex-shrink: 0;
}

.toast-content {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.toast-title {
  font-size: 15.5px;
  font-weight: 600;
  color: var(--text-primary);
}

.toast-value {
  font-size: 14px;
  color: var(--text-secondary);
  font-family: 'Courier New', monospace;
  word-break: break-all;
}

/* ============================================
   Responsive - Tablet (768px or less)
   ============================================ */
@media (max-width: 768px) {
  .medication-dosage-interval-calculator-container {
    margin: 6px 5px;
    padding: 7px;
    width: calc(100% - 10px);
  }
  
  .main-grid {
    grid-template-columns: 1fr;
    gap: 6px;
  }
  
  .calculator-header {
    padding-right: 50px;
  }
  
  .calculator-header .main-title {
    font-size: 26px;
  }
  
  .section-header {
    font-size: 17px;
  }
  
  .dark-mode-toggle {
    font-size: 14px;
    padding: 5px 8px;
  }
  
  .input-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  
  .med-list {
    grid-template-columns: 1fr 1fr;
    max-height: 280px;
  }
  
  .button-group.four-cols {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .upcoming-list {
    grid-template-columns: 1fr 1fr;
  }
  
  .timeline-hours span {
    font-size: 11px;
  }
}

/* ============================================
   Responsive - Mobile (480px or less)
   ============================================ */
@media (max-width: 480px) {
  .medication-dosage-interval-calculator-container {
    padding: 6px;
    border-width: 1px;
  }
  
  .input-section,
  .result-section,
  .timeline-section,
  .upcoming-section,
  .info-section {
    padding: 6px;
  }
  
  .calculator-header {
    padding-right: 45px;
  }
  
  .calculator-header .main-title {
    font-size: 24px;
  }
  
  .calculator-header .subtitle {
    font-size: 14.5px;
  }
  
  .quick-btn {
    font-size: 13px;
    padding: 4px 8px;
  }
  
  .interval-input-wrapper input[type="number"] {
    width: 55px;
  }
  
  .color-btn {
    width: 24px;
    height: 24px;
  }
  
  .med-list {
    grid-template-columns: 1fr;
  }
  
  .upcoming-list {
    grid-template-columns: 1fr;
  }
  
  .timeline-controls {
    gap: 4px;
  }
  
  .timeline-date {
    font-size: 13px;
    min-width: 60px;
  }
  
  .timeline-nav-btn {
    width: 22px;
    height: 22px;
  }
  
  .info-item {
    font-size: 14px;
  }
  
  .button-group.four-cols {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .sample-btn,
  .reset-btn,
  .save-btn,
  .load-btn {
    font-size: 13px;
    padding: 5px 4px;
  }
}