@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600;700&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

:root {
  --bg-primary: #07090e;
  --bg-secondary: #0d111a;
  --bg-card: rgba(18, 24, 38, 0.7);
  --bg-card-hover: rgba(26, 34, 52, 0.85);
  --bg-bezel: rgba(255, 255, 255, 0.03);
  --bg-overlay: rgba(5, 7, 12, 0.85);
  
  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-strong: rgba(255, 255, 255, 0.12);
  --border-accent: rgba(99, 102, 241, 0.35);

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-accent: #818cf8;

  --accent-primary: #6366f1;
  --accent-primary-hover: #4f46e5;
  --accent-primary-glow: rgba(99, 102, 241, 0.25);

  --accent-success: #10b981;
  --accent-success-glow: rgba(16, 185, 129, 0.2);
  --accent-warning: #f59e0b;
  --accent-warning-glow: rgba(245, 158, 11, 0.2);
  --accent-danger: #f43f5e;
  --accent-danger-glow: rgba(244, 63, 94, 0.2);
  --accent-cyan: #06b6d4;
  --accent-purple: #a855f7;

  --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 35px var(--accent-primary-glow);
  
  --transition-smooth: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: all 0.15s ease-out;
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  background-image: 
    radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.08) 0px, transparent 50%),
    radial-gradient(at 100% 0%, rgba(6, 182, 212, 0.07) 0px, transparent 50%),
    radial-gradient(at 50% 100%, rgba(168, 85, 247, 0.06) 0px, transparent 50%);
  background-attachment: fixed;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.28);
}

/* Double-Bezel Card Container */
.bezel-card {
  background: var(--bg-bezel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 6px;
  box-shadow: var(--shadow-md);
  transition: var(--transition-smooth);
}

.bezel-inner {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: calc(var(--radius-xl) - 5px);
  padding: 1.5rem;
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.08);
}

.bezel-card:hover {
  border-color: rgba(255, 255, 255, 0.12);
  transform: translateY(-2px);
}

/* App Header & Floating Navbar */
.app-header {
  position: sticky;
  top: 1rem;
  z-index: 100;
  max-width: 1360px;
  margin: 0 auto 1.5rem auto;
  padding: 0 1rem;
}

.nav-island {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(13, 17, 26, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-full);
  padding: 0.6rem 1rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4), inset 0 1px 1px rgba(255, 255, 255, 0.1);
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  text-decoration: none;
}

.brand-icon {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: linear-gradient(135deg, #6366f1, #a855f7);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
}

.brand-badge {
  background: linear-gradient(135deg, var(--accent-primary), #a855f7);
  color: #ffffff;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  box-shadow: 0 0 12px var(--accent-primary-glow);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  list-style: none;
}

.nav-item-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.5rem 0.9rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition-fast);
}

.nav-item-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.nav-item-btn.active {
  color: #ffffff;
  background: rgba(99, 102, 241, 0.15);
  border-color: rgba(99, 102, 241, 0.3);
  box-shadow: 0 0 14px var(--accent-primary-glow);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Action Buttons & Micro-Interactions */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, var(--accent-primary), #4f46e5);
  color: #ffffff;
  font-family: var(--font-main);
  font-weight: 600;
  font-size: 0.875rem;
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 15px var(--accent-primary-glow);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.btn-primary:hover {
  transform: translateY(-1px) scale(1.02);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.45);
}

.btn-primary:active {
  transform: translateY(0) scale(0.98);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  font-family: var(--font-main);
  font-weight: 600;
  font-size: 0.875rem;
  padding: 0.6rem 1.15rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--border-strong);
}

.btn-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-icon:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--border-strong);
}

/* App Layout & Main Content */
.main-wrapper {
  max-width: 1360px;
  margin: 0 auto;
  padding: 0 1.25rem 4rem 1.25rem;
}

.tab-pane {
  display: none;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.tab-pane.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

/* Page Header & Eyebrow */
.view-header {
  margin-bottom: 2rem;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.25);
  color: var(--accent-primary);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

.view-title {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: #ffffff;
  line-height: 1.15;
}

.view-subtitle {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-top: 0.35rem;
}

/* Bento Grid System */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1.25rem;
}

.col-12 { grid-column: span 12; }
.col-8 { grid-column: span 8; }
.col-7 { grid-column: span 7; }
.col-6 { grid-column: span 6; }
.col-5 { grid-column: span 5; }
.col-4 { grid-column: span 4; }
.col-3 { grid-column: span 3; }

/* Stat Highlights */
.stat-widget {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
}

.stat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.stat-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.stat-icon {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.stat-value {
  font-family: var(--font-mono);
  font-size: 2.1rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: -0.03em;
  line-height: 1;
}

.stat-meta {
  margin-top: 0.6rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.trend-up { color: var(--accent-success); font-weight: 600; }
.trend-down { color: var(--accent-danger); font-weight: 600; }

/* Streak Heatmap */
.heatmap-container {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  padding: 0.75rem 0;
  max-height: 140px;
  overflow-y: auto;
}

.heatmap-cell {
  width: 14px;
  height: 14px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.03);
  transition: transform 0.15s ease;
  position: relative;
}

.heatmap-cell:hover {
  transform: scale(1.3);
  z-index: 5;
  border-color: rgba(255, 255, 255, 0.4);
}

.heatmap-lvl-0 { background: rgba(255, 255, 255, 0.05); }
.heatmap-lvl-1 { background: rgba(99, 102, 241, 0.3); }
.heatmap-lvl-2 { background: rgba(99, 102, 241, 0.6); }
.heatmap-lvl-3 { background: rgba(99, 102, 241, 0.9); }
.heatmap-lvl-4 { background: #38bdf8; box-shadow: 0 0 8px #38bdf8; }

/* Progress Bar */
.progress-track {
  width: 100%;
  height: 8px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-full);
  overflow: hidden;
  position: relative;
}

.progress-fill {
  height: 100%;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-cyan));
  transition: width 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Modals */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: var(--bg-overlay);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-smooth);
}

.modal-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  width: 100%;
  max-width: 580px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-xl);
  padding: 2rem;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.7);
  transform: scale(0.94);
  transition: var(--transition-smooth);
}

.modal-backdrop.open .modal-content {
  transform: scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.modal-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: #ffffff;
}

/* Form Controls */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}

.form-control {
  width: 100%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  color: var(--text-primary);
  font-family: var(--font-main);
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition-fast);
}

.form-control:focus {
  border-color: var(--accent-primary);
  background: rgba(99, 102, 241, 0.05);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

textarea.form-control {
  min-height: 100px;
  resize: vertical;
}

/* Badge tags */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
}
.badge-primary { background: rgba(99, 102, 241, 0.15); color: #818cf8; border: 1px solid rgba(99, 102, 241, 0.3); }
.badge-success { background: rgba(16, 185, 129, 0.15); color: #34d399; border: 1px solid rgba(16, 185, 129, 0.3); }
.badge-warning { background: rgba(245, 158, 11, 0.15); color: #fbbf24; border: 1px solid rgba(245, 158, 11, 0.3); }
.badge-danger  { background: rgba(244, 63, 94, 0.15); color: #fb7185; border: 1px solid rgba(244, 63, 94, 0.3); }
.badge-purple  { background: rgba(168, 85, 247, 0.15); color: #c084fc; border: 1px solid rgba(168, 85, 247, 0.3); }
.badge-cyan    { background: rgba(6, 182, 212, 0.15); color: #22d3ee; border: 1px solid rgba(6, 182, 212, 0.3); }

/* Pomodoro Interactive Styles */
.pomodoro-ring-wrapper {
  position: relative;
  width: 280px;
  height: 280px;
  margin: 1.5rem auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pomodoro-svg {
  transform: rotate(-90deg);
  width: 100%;
  height: 100%;
}

.pomodoro-circle-bg {
  fill: none;
  stroke: rgba(255, 255, 255, 0.06);
  stroke-width: 10;
}

.pomodoro-circle-progress {
  fill: none;
  stroke: url(#pomodoro-gradient);
  stroke-width: 10;
  stroke-linecap: round;
  stroke-dasharray: 754;
  stroke-dashoffset: 0;
  transition: stroke-dashoffset 1s linear;
}

.pomodoro-inner-time {
  position: absolute;
  text-align: center;
}

.pomodoro-digits {
  font-family: var(--font-mono);
  font-size: 3.5rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: -0.04em;
  line-height: 1;
}

.pomodoro-mode-label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-secondary);
  margin-top: 0.5rem;
  font-weight: 600;
}

/* Sound Synthesizer Grid */
.sound-preset-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 0.75rem;
  margin-top: 1rem;
}

.sound-btn {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.85rem 0.6rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition-fast);
}

.sound-btn:hover {
  background: rgba(255, 255, 255, 0.07);
  color: var(--text-primary);
  border-color: var(--border-strong);
}

.sound-btn.playing {
  background: rgba(99, 102, 241, 0.15);
  border-color: var(--accent-primary);
  color: #818cf8;
  box-shadow: 0 0 15px var(--accent-primary-glow);
}

/* Flashcard 3D Scene */
.flashcard-scene {
  perspective: 1200px;
  width: 100%;
  max-width: 600px;
  height: 340px;
  margin: 1.5rem auto;
  cursor: pointer;
}

.flashcard {
  width: 100%;
  height: 100%;
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.6s cubic-bezier(0.4, 0.2, 0.2, 1);
  border-radius: var(--radius-xl);
}

.flashcard.flipped {
  transform: rotateY(180deg);
}

.flashcard-face {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: var(--radius-xl);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-lg), inset 0 1px 1px rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px);
}

.flashcard-back {
  transform: rotateY(180deg);
  background: rgba(18, 28, 48, 0.9);
  border-color: rgba(99, 102, 241, 0.4);
}

.flashcard-text {
  font-size: 1.3rem;
  font-weight: 600;
  line-height: 1.5;
  color: #ffffff;
  text-align: center;
  margin: auto 0;
}

.srs-buttons {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
  max-width: 600px;
  margin: 1rem auto 0 auto;
}

/* Kanban Board Columns */
.kanban-board {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  align-items: flex-start;
}

.kanban-col {
  background: rgba(13, 17, 26, 0.6);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  min-height: 480px;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.kanban-col-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 700;
  font-size: 0.9rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}

.kanban-card {
  background: rgba(26, 34, 52, 0.7);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1rem;
  box-shadow: var(--shadow-sm);
  cursor: grab;
  transition: var(--transition-fast);
}

.kanban-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
  background: rgba(30, 42, 66, 0.9);
}

.kanban-card:active {
  cursor: grabbing;
}

/* Question / Simulado List */
.question-item {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1rem;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  transition: var(--transition-fast);
}

.question-item:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border-strong);
}

/* Security Lock Screen */
.security-lockscreen {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(7, 9, 14, 0.96);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.35s;
}

.security-lockscreen.active {
  opacity: 1;
  visibility: visible;
}

.lockscreen-card {
  width: 100%;
  max-width: 420px;
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-xl);
  padding: 2.5rem 2rem;
  text-align: center;
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.8), inset 0 1px 1px rgba(255, 255, 255, 0.1);
  transform: scale(0.95);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.security-lockscreen.active .lockscreen-card {
  transform: scale(1);
}

.lockscreen-avatar {
  width: 68px;
  height: 68px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(168, 85, 247, 0.2));
  border: 1px solid rgba(99, 102, 241, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem auto;
  font-size: 1.8rem;
  color: var(--accent-primary);
  box-shadow: 0 0 25px var(--accent-primary-glow);
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  /* keyframes slideInRight existia mas nunca era aplicada aos toasts */
  animation: slideInRight 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  min-width: 300px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 0.9rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-primary);
  box-shadow: var(--shadow-lg);
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(100%);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Responsive Overrides */
@media (max-width: 1024px) {
  .kanban-board {
    grid-template-columns: repeat(2, 1fr);
  }
  .col-8, .col-7, .col-5, .col-4, .col-3 {
    grid-column: span 6;
  }
}

@media (max-width: 768px) {
  .app-header {
    top: 0.5rem;
    padding: 0 0.5rem;
  }
  
  .nav-island {
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0.75rem;
    border-radius: var(--radius-lg);
  }

  .nav-links {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 0.3rem;
  }

  .col-12, .col-8, .col-7, .col-6, .col-5, .col-4, .col-3 {
    grid-column: span 12;
  }

  .view-title {
    font-size: 1.6rem;
  }

  .kanban-board {
    grid-template-columns: 1fr;
  }
  
  .srs-buttons {
    grid-template-columns: repeat(2, 1fr);
  }
}