/* yk.css - Minimalist Semantic Material Design Framework */
@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;500;700&display=swap');

:root {
  --md-primary: #455a64;
  --md-primary-hover: #37474f;
  --md-primary-light: #cfd8dc;
  --md-on-primary: #ffffff;
  --md-success: #2e7d32;
  --md-success-hover: #1b5e20;
  --md-on-success: #ffffff;
  --md-error: #d32f2f;
  --md-error-hover: #c62828;
  --md-on-error: #ffffff;
  --md-warning: #ed6c02;
  --md-warning-hover: #e65100;
  --md-on-warning: #ffffff;
  --md-bg: #fafafa;
  --md-surface: #ffffff;
  --md-text: rgba(0, 0, 0, 0.87);
  --md-text-secondary: rgba(0, 0, 0, 0.6);
  --md-divider: rgba(0, 0, 0, 0.12);
  --md-input-bg: rgba(0, 0, 0, 0.04);
  --md-calendar-filter: none;
  --md-shadow-1: 0 2px 1px -1px rgba(0,0,0,.2), 0 1px 1px 0 rgba(0,0,0,.14), 0 1px 3px 0 rgba(0,0,0,.12);
  --md-shadow-2: 0 3px 1px -2px rgba(0,0,0,.2), 0 2px 2px 0 rgba(0,0,0,.14), 0 1px 5px 0 rgba(0,0,0,.12);
  --md-shadow-3: 0 5px 5px -3px rgba(0,0,0,.2), 0 8px 10px 1px rgba(0,0,0,.14), 0 3px 14px 2px rgba(0,0,0,.12);
  --md-radius: 8px;
  --md-font: 'Nunito', system-ui, -apple-system, sans-serif;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --md-primary: #90a4ae;
    --md-primary-hover: #b0bec5;
    --md-primary-light: #37474f;
    --md-on-primary: rgba(0, 0, 0, 0.87);
    --md-success: #81c784;
    --md-success-hover: #a5d6a7;
    --md-on-success: rgba(0, 0, 0, 0.87);
    --md-error: #e57373;
    --md-error-hover: #ef9a9a;
    --md-on-error: rgba(0, 0, 0, 0.87);
    --md-warning: #ffb74d;
    --md-warning-hover: #ffcc80;
    --md-on-warning: rgba(0, 0, 0, 0.87);
    --md-bg: #121212;
    --md-surface: #1e1e1e;
    --md-text: rgba(255, 255, 255, 0.87);
    --md-text-secondary: rgba(255, 255, 255, 0.6);
    --md-divider: rgba(255, 255, 255, 0.12);
    --md-input-bg: rgba(255, 255, 255, 0.04);
    --md-calendar-filter: invert(1);
  }
}

[data-theme="dark"] {
  --md-primary: #90a4ae;
  --md-primary-hover: #b0bec5;
  --md-primary-light: #37474f;
  --md-on-primary: rgba(0, 0, 0, 0.87);
  --md-success: #81c784;
  --md-success-hover: #a5d6a7;
  --md-on-success: rgba(0, 0, 0, 0.87);
  --md-error: #e57373;
  --md-error-hover: #ef9a9a;
  --md-on-error: rgba(0, 0, 0, 0.87);
  --md-warning: #ffb74d;
  --md-warning-hover: #ffcc80;
  --md-on-warning: rgba(0, 0, 0, 0.87);
  --md-bg: #121212;
  --md-surface: #1e1e1e;
  --md-text: rgba(255, 255, 255, 0.87);
  --md-text-secondary: rgba(255, 255, 255, 0.6);
  --md-divider: rgba(255, 255, 255, 0.12);
  --md-input-bg: rgba(255, 255, 255, 0.04);
  --md-calendar-filter: invert(1);
}

[data-theme="light"] {
  --md-primary: #455a64;
  --md-primary-hover: #37474f;
  --md-primary-light: #cfd8dc;
  --md-success: #2e7d32;
  --md-success-hover: #1b5e20;
  --md-error: #d32f2f;
  --md-error-hover: #c62828;
  --md-warning: #ed6c02;
  --md-warning-hover: #e65100;
  --md-bg: #fafafa;
  --md-surface: #ffffff;
  --md-text: rgba(0, 0, 0, 0.87);
  --md-text-secondary: rgba(0, 0, 0, 0.6);
  --md-divider: rgba(0, 0, 0, 0.12);
  --md-input-bg: rgba(0, 0, 0, 0.04);
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
body { 
  line-height: 1.5; 
  -webkit-font-smoothing: antialiased; 
  min-height: 100vh;
}
img, picture, video, canvas, svg { display: block; max-width: 100%; }
input, button, textarea, select { font: inherit; }
p, h1, h2, h3, h4, h5, h6 { overflow-wrap: break-word; }

form {
  padding: 1rem 1.5rem;
}

body {
  font-family: var(--md-font);
  background-color: var(--md-bg);
  color: var(--md-text);
  transition: background-color 0.3s, color 0.3s;
}

main {
  padding: 2rem 1rem;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 400;
  margin-top: 0;
  margin-bottom: 1rem;
}

p {
  color: var(--md-text-secondary);
  margin-top: 0;
  margin-bottom: 1rem;
}

a {
  color: var(--md-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color 0.2s;
}

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

/* Tags / Badges */
em {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 0.5rem;
  height: 20px;
  border-radius: 10px;
  font-size: 0.75rem;
  font-weight: 700;
  font-style: normal;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  background-color: var(--md-primary-light);
  color: var(--md-primary);
  white-space: nowrap;
}

em.success { background-color: color-mix(in srgb, var(--md-success), transparent 80%); color: var(--md-success); }
em.error, em.danger { background-color: color-mix(in srgb, var(--md-error), transparent 80%); color: var(--md-error); }
em.warning { background-color: color-mix(in srgb, var(--md-warning), transparent 80%); color: var(--md-warning); }
em.secondary { background-color: color-mix(in srgb, var(--md-text-secondary), transparent 80%); color: var(--md-text-secondary); }

/* Icons */
i {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.25rem;
  height: 1.25rem;
  vertical-align: middle;
  flex-shrink: 0;
}

i svg {
  width: 100%;
  height: 100%;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

header, footer {
  display: block;
}

main > header {
  margin-bottom: 2rem;
}

/* Layout */
grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

grid > * {
  flex: 1 1 0%;
  min-width: 0;
}

grid > .fit {
  flex: 0 0 auto;
  width: auto;
}

.fit {
  display: inline-block;
  width: auto;
}

@media (max-width: 768px) {
  grid > * {
    flex: 1 1 100%;
  }
}

/* Cards */
article {
  background-color: var(--md-surface);
  border-radius: var(--md-radius);
  box-shadow: var(--md-shadow-1);
  margin-bottom: 1.5rem;
  transition: box-shadow 0.3s, background-color 0.3s;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

article > header,
article > footer,
article > section,
article > div {
  padding: 1rem 1.5rem;
}

article > header {
  border-bottom: 1px solid var(--md-divider);
}

article > footer {
  border-top: 1px solid var(--md-divider);
  color: var(--md-text-secondary);
  font-size: 0.875rem;
}

article:hover {
  box-shadow: var(--md-shadow-2);
}

/* Buttons */
button, input[type="button"], input[type="submit"], input[type="reset"] {
  background-color: var(--md-primary);
  color: color-mix(in srgb, var(--md-on-primary), transparent 20%);
  border: none;
  border-radius: var(--md-radius);
  padding: 3px 1rem 0 1rem;
  height: 36px;
  line-height: 1;
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.25px;
  cursor: pointer;
  box-shadow: var(--md-shadow-1);
  transition: background-color 0.2s, box-shadow 0.2s, color 0.2s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  vertical-align: middle;
  font-family: inherit;
}

button:hover, input[type="submit"]:hover {
  background-color: var(--md-primary-hover);
  box-shadow: var(--md-shadow-2);
  color: var(--md-on-primary);
}

button.success {
  background-color: var(--md-success);
  color: color-mix(in srgb, var(--md-on-success), transparent 20%);
}
button.success:hover {
  background-color: var(--md-success-hover);
  color: var(--md-on-success);
}

button.error, button.danger {
  background-color: var(--md-error);
  color: color-mix(in srgb, var(--md-on-error), transparent 20%);
}
button.error:hover, button.danger:hover {
  background-color: var(--md-error-hover);
  color: var(--md-on-error);
}

button.warning {
  background-color: var(--md-warning);
  color: color-mix(in srgb, var(--md-on-warning), transparent 20%);
}
button.warning:hover {
  background-color: var(--md-warning-hover);
  color: var(--md-on-warning);
}

button.text {
  background-color: transparent;
  color: color-mix(in srgb, var(--md-primary), transparent 20%);
  box-shadow: none;
  border: none;
}

button.text:hover {
  background-color: var(--md-input-bg);
  box-shadow: none;
  color: var(--md-primary);
}

button.text.success { color: color-mix(in srgb, var(--md-success), transparent 20%); }
button.text.success:hover { color: var(--md-success); }

button.text.error, button.text.danger { color: color-mix(in srgb, var(--md-error), transparent 20%); }
button.text.error:hover, button.text.danger:hover { color: var(--md-error); }

button.text.warning { color: color-mix(in srgb, var(--md-warning), transparent 20%); }
button.text.warning:hover { color: var(--md-warning); }

button:active {
  box-shadow: var(--md-shadow-1);
}

button:disabled {
  background-color: var(--md-divider);
  color: var(--md-text-secondary);
  box-shadow: none;
  cursor: not-allowed;
}

/* Form Inputs */
input[type="text"], input[type="password"], input[type="email"], input[type="number"], input[type="date"], textarea, select {
  width: 100%;
  padding: 12px 16px;
  border: none;
  border-bottom: 1px solid var(--md-text-secondary);
  background-color: var(--md-input-bg);
  color: var(--md-text);
  font-family: inherit;
  font-size: 1rem;
  border-radius: 4px 4px 0 0;
  transition: border-bottom-color 0.2s, background-color 0.2s;
  margin-bottom: 1rem;
  appearance: none;
  -webkit-appearance: none;
}

select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='rgba(128,128,128,0.8)' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
  padding-right: 40px;
}

input[type="date"]::-webkit-calendar-picker-indicator {
  filter: var(--md-calendar-filter);
  cursor: pointer;
}

input:focus:not([type="checkbox"]):not([type="radio"]), textarea:focus, select:focus {
  outline: none;
  border-bottom: 2px solid var(--md-primary);
  padding-bottom: 11px;
}

option {
  background-color: var(--md-surface);
  color: var(--md-text);
}

label {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--md-text-secondary);
  margin-bottom: 0.25rem;
}

fieldset {
  border: 1px solid var(--md-divider);
  border-radius: var(--md-radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

legend {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--md-text-secondary);
  padding: 0 0.5rem;
}

/* Switch */
input[type="checkbox"][role="switch"] {
  appearance: none;
  -webkit-appearance: none;
  width: 36px;
  height: 14px;
  background-color: var(--md-divider);
  border-radius: 7px;
  position: relative;
  cursor: pointer;
  outline: none;
  vertical-align: middle;
}

input[type="checkbox"][role="switch"]::after {
  content: '';
  position: absolute;
  top: -3px;
  left: 0;
  width: 20px;
  height: 20px;
  background-color: #eceff1;
  border-radius: 50%;
  box-shadow: var(--md-shadow-1);
  transition: transform 0.2s ease, background-color 0.2s ease;
}

[data-theme="dark"] input[type="checkbox"][role="switch"]::after {
  background-color: #90a4ae;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) input[type="checkbox"][role="switch"]::after {
    background-color: #90a4ae;
  }
}

input[type="checkbox"][role="switch"]:checked {
  background-color: var(--md-primary-light);
}

input[type="checkbox"][role="switch"]:checked::after {
  transform: translateX(16px);
  background-color: var(--md-primary);
}

[data-theme="dark"] input[type="checkbox"][role="switch"]:checked::after {
  background-color: #ffffff;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) input[type="checkbox"][role="switch"]:checked::after {
    background-color: #ffffff;
  }
}

/* Standard Checkbox & Radio */
input[type="checkbox"]:not([role="switch"]), input[type="radio"] {
  appearance: none;
  -webkit-appearance: none;
  background-color: var(--md-input-bg);
  border: 1px solid var(--md-text-secondary);
  width: 18px;
  height: 18px;
  cursor: pointer;
  display: inline-grid;
  place-content: center;
  vertical-align: middle;
  margin-right: 0.5rem;
  border-radius: 2px;
  transition: background-color 0.2s, border-color 0.2s;
}

input[type="radio"] {
  border-radius: 50%;
}

input[type="checkbox"]:not([role="switch"]):checked, input[type="radio"]:checked {
  background-color: var(--md-primary);
  border-color: var(--md-primary);
}

/* Custom checkmark for Checkbox */
input[type="checkbox"]:not([role="switch"])::before {
  content: "";
  width: 10px;
  height: 10px;
  transform: scale(0);
  transition: 120ms transform ease-in-out;
  background-color: var(--md-on-primary);
  clip-path: polygon(14% 44%, 0 65%, 50% 100%, 100% 16%, 80% 0%, 43% 62%);
}

/* Custom dot for Radio */
input[type="radio"]::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  transform: scale(0);
  transition: 120ms transform ease-in-out;
  background-color: var(--md-on-primary);
}

input:checked::before {
  transform: scale(1);
}

[data-theme="dark"] input:checked::before {
  background-color: #000000;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) input:checked::before {
    background-color: #000000;
  }
}

/* Modals / Dialog */
dialog {
  background-color: var(--md-surface);
  color: var(--md-text);
  border: none;
  border-radius: var(--md-radius);
  box-shadow: var(--md-shadow-3);
  padding: 1.5rem;
  margin: auto;
}

dialog::backdrop {
  background-color: rgba(0, 0, 0, 0.32);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1rem;
}

th, td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--md-divider);
}

th {
  font-weight: 500;
  color: var(--md-text-secondary);
}

/* Progress */
progress {
  appearance: none;
  width: 100%;
  height: 4px;
  border: none;
  background-color: var(--md-primary-light);
  border-radius: 2px;
  overflow: hidden;
}

progress::-webkit-progress-bar {
  background-color: var(--md-primary-light);
}

progress::-webkit-progress-value {
  background-color: var(--md-primary);
}

progress::-moz-progress-bar {
  background-color: var(--md-primary);
}

/* Tabs System */
dl.tabs {
  display: flex;
  flex-wrap: wrap;
  margin: 0;
}

dl.tabs dt {
  padding: 0.75rem 1.5rem;
  cursor: pointer;
  font-weight: 700;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--md-text-secondary);
  border-bottom: 2px solid var(--md-divider);
  transition: all 0.2s;
  order: 1;
}

dl.tabs dt:hover {
  color: var(--md-primary);
  background-color: var(--md-input-bg);
}

dl.tabs dt.active {
  color: var(--md-primary);
  border-bottom-color: var(--md-primary);
}

dl.tabs::after {
  content: '';
  order: 1;
  flex-grow: 1;
  border-bottom: 2px solid var(--md-divider);
}

dl.tabs dd {
  display: none;
  width: 100%;
  padding: 1.5rem 0;
  order: 2;
}

dl.tabs dd.active {
  display: block;
}

/* Toasts */
#toast-container {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  z-index: 9999;
  pointer-events: none;
}

.toast {
  padding: 0.75rem 1.5rem;
  border-radius: var(--md-radius);
  background-color: var(--md-primary);
  color: var(--md-on-primary);
  box-shadow: var(--md-shadow-3);
  font-weight: 700;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  animation: toastIn 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275) both;
  pointer-events: auto;
  min-width: 200px;
  text-align: center;
}

.toast.success { background-color: var(--md-success); color: var(--md-on-success); }
.toast.error, .toast.danger { background-color: var(--md-error); color: var(--md-on-error); }
.toast.warning { background-color: var(--md-warning); color: var(--md-on-warning); }

@keyframes toastIn {
  from { opacity: 0; transform: translateY(1rem); }
  to { opacity: 1; transform: translateY(0); }
}

.toast.fade-out {
  opacity: 0;
  transform: translateY(1rem);
  transition: opacity 0.3s, transform 0.3s;
}