:root {
  /* A fixed "campus library" look: cream paper cards on a green desk. */
  color-scheme: only light;
  --paper: #f6f0e1;
  --ink: #1b2a41;
  --felt: #12302a;
  --navy: #1b2a41;
  --accent: #9d2235;
  --gold: #d4a943;
  --red: #c81e2b;
  --green: #1e8e3e;
  --serif: Georgia, "Iowan Old Style", "Times New Roman", serif;
}

/* Lets the current row's tint pulse smoothly. */
@property --tint {
  syntax: "<percentage>";
  inherits: true;
  initial-value: 0%;
}

* {
  box-sizing: border-box;
}

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  margin: 0 auto;
  max-width: 1100px;
  padding: 6rem 1.25rem 4rem;
  line-height: 1.5;
  font-size: 1.05rem;

  color: var(--ink);
  background: transparent;
}

/* A walnut desk seen from above: procedural wood grain (no image file),
   with a warm lamp glow at the top. It sits on html so it always fills the
   whole window, whatever the size, with no edges showing. */
html {
  min-height: 100%;
  background-color: #3b2415;
  background-image:
    radial-gradient(ellipse 70% 45% at 50% 0%, rgba(255, 214, 120, 0.30), transparent 70%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='1800' height='1200'%3E%3Cfilter id='w'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.0025 0.045' numOctaves='3' seed='7'/%3E%3CfeColorMatrix values='0 0 0 0 0.55 0 0 0 0 0.34 0 0 0 0 0.17 0 0 0 1.1 -0.3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' fill='%233b2415'/%3E%3Crect width='100%25' height='100%25' filter='url(%23w)'/%3E%3C/svg%3E");
  background-size: auto, cover;
  background-repeat: no-repeat;
  background-attachment: fixed;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-family: var(--serif);
  font-size: 2.4rem;
  line-height: 1.05;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

h2 {
  font-family: var(--serif);
  font-size: 1.3rem;
  line-height: 1.2;
}

/* ---------- the desk: cards laid out side by side ---------- */

.desk {
  display: grid;
  gap: 1.75rem;
  grid-template-columns: minmax(0, 1fr);
  grid-template-areas:
    "sign"
    "clock"
    "schedule"
    "pomo"
    "progress"
    "notes";
}

@media (min-width: 900px) {
  .desk {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    grid-template-areas:
      "sign     clock"
      "schedule pomo"
      "schedule progress"
      "schedule notes";
  }
}

.card {
  border: 3px solid var(--ink);
  border-radius: 0.6rem;
  box-shadow: 6px 6px 0 var(--accent);
  padding: 1rem 1.25rem;
  color: var(--ink);
  background-color: var(--paper);
  transform: rotate(var(--tilt, 0deg));
  transition: transform 0.2s ease;
}

.card:hover {
  transform: rotate(0deg);
}

.sign {
  grid-area: sign;
  --tilt: -1.5deg;
  background: var(--navy);
  color: var(--paper);
  border-color: var(--gold);
  box-shadow: 6px 6px 0 var(--accent), 0 0 0 4px var(--navy);
}

.sign-tag {
  font-family: var(--serif);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.35rem;
}
.clock-card { grid-area: clock; --tilt: 1deg; }
.schedule-card { grid-area: schedule; --tilt: 0deg; min-width: 0; }
.pomo-card { grid-area: pomo; --tilt: -1deg; }
.progress-card { grid-area: progress; --tilt: 1deg; }
.notes-card { grid-area: notes; --tilt: -0.5deg; background: #fff3b0; }

@media (max-width: 899px) {
  .card {
    --tilt: 0deg;
  }
}

.card-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 0.75rem;
  margin-bottom: 0.75rem;
}

.card-label {
  display: block;
  font-size: 0.9rem;
  opacity: 0.7;
}

/* ---------- clock ---------- */

.live-clock-time {
  display: block;
  font-size: 2.6rem;
  font-weight: bold;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}

.now-line {
  margin-top: 0.5rem;
  font-size: 0.95rem;
}

/* ---------- buttons ---------- */

.study-room-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.arrow-hint {
  font-size: 1.4rem;
}

.cartoon-button {
  border: none;
  border-radius: 1.5rem;
  padding: 0.5rem 1.1rem;
  font: inherit;
  font-weight: bold;
  color: white;
  background: linear-gradient(180deg, #c23a4d, #9d2235);
  box-shadow: 0 4px 0 #6b1523, 0 6px 10px rgba(0, 0, 0, 0.25);
  cursor: pointer;
}

.cartoon-button:hover {
  filter: brightness(1.05);
}

.cartoon-button:active {
  transform: translateY(2px);
  box-shadow: 0 2px 0 #6b1523, 0 3px 6px rgba(0, 0, 0, 0.25);
}

.cartoon-button-secondary {
  background: linear-gradient(180deg, #3d5a80, #1b2a41);
  box-shadow: 0 4px 0 #0d1522, 0 6px 10px rgba(0, 0, 0, 0.25);
}

.cartoon-button-secondary:active {
  box-shadow: 0 2px 0 #0d1522, 0 3px 6px rgba(0, 0, 0, 0.25);
}

/* ---------- schedule table ---------- */

.schedule-scroll {
  max-height: 360px;
  overflow: auto;
  max-width: 100%;
  position: relative;
}

.study-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.study-table th,
.study-table td {
  text-align: left;
  padding: 0.4rem 0.6rem;
  border-bottom: 1px solid color-mix(in srgb, currentColor 15%, transparent);
}

.study-table th {
  position: sticky;
  top: 0;
  z-index: 1;
  background-color: var(--paper);
}

.study-table .time-cell {
  white-space: nowrap;
}

.study-table input[type="text"] {
  width: 100%;
  font: inherit;
  border: 1px solid color-mix(in srgb, currentColor 25%, transparent);
  border-radius: 0.375rem;
  padding: 0.25rem 0.5rem;
  background: transparent;
  color: inherit;
}

.study-table input[type="time"] {
  font: inherit;
  border: 1px solid color-mix(in srgb, currentColor 25%, transparent);
  border-radius: 0.375rem;
  padding: 0.2rem 0.3rem;
  background: transparent;
  color: inherit;
}

.study-table input[type="checkbox"] {
  width: 1.15rem;
  height: 1.15rem;
  cursor: pointer;
}

.remove-row {
  font: inherit;
  font-size: 0.8rem;
  border: 1px solid color-mix(in srgb, currentColor 25%, transparent);
  border-radius: 0.375rem;
  padding: 0.125rem 0.5rem;
  background: transparent;
  color: inherit;
  cursor: pointer;
}

/* Row states. A ring is drawn per cell (top and bottom on every cell,
   left on the first, right on the last) so it reads as one frame. */

.study-table tr {
  --ring: transparent;
  --ring-w: 0px;
}

.study-table tr.current-row {
  --ring: var(--red);
  --ring-w: 3px;
  animation: glow 1.4s ease-in-out infinite;
  font-weight: bold;
}

.study-table tr.current-row.ending {
  animation-duration: 0.5s;
}

.study-table tr.current-row.done-now {
  --ring: var(--green);
  --tint: 16%;
  animation: none;
}

.study-table tr.current-row td {
  background-color: color-mix(in srgb, var(--ring) var(--tint), transparent);
  box-shadow:
    inset 0 var(--ring-w) 0 var(--ring),
    inset 0 calc(var(--ring-w) * -1) 0 var(--ring);
}

.study-table tr.current-row td:first-child {
  box-shadow:
    inset var(--ring-w) 0 0 var(--ring),
    inset 0 var(--ring-w) 0 var(--ring),
    inset 0 calc(var(--ring-w) * -1) 0 var(--ring);
}

.study-table tr.current-row td:last-child {
  box-shadow:
    inset calc(var(--ring-w) * -1) 0 0 var(--ring),
    inset 0 var(--ring-w) 0 var(--ring),
    inset 0 calc(var(--ring-w) * -1) 0 var(--ring);
}

.study-table tr.past-row {
  opacity: 0.55;
}

.study-table tr.past-row.is-done .task-cell,
.study-table tr.past-row.is-done .task-cell input {
  text-decoration: line-through;
}

@keyframes glow {
  0%, 100% { --tint: 6%; }
  50% { --tint: 30%; }
}

/* ---------- focus timer ---------- */

.chips {
  display: flex;
  gap: 0.4rem;
}

.chip {
  font: inherit;
  font-size: 0.85rem;
  border: 2px solid var(--ink);
  border-radius: 1rem;
  padding: 0.1rem 0.7rem;
  background: transparent;
  color: inherit;
  cursor: pointer;
}

.chip-on {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
  font-weight: bold;
}

.pomo-time {
  font-size: 3rem;
  font-weight: bold;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
  margin-bottom: 0.75rem;
}

.pomo-buttons {
  display: flex;
  gap: 0.6rem;
}

.pomo-card.flash {
  animation: flash 0.5s steps(2, jump-none) 6;
}

@keyframes flash {
  50% { background-color: color-mix(in srgb, var(--gold) 60%, var(--paper)); }
}

/* ---------- progress ---------- */

.progress-text {
  margin: 0.25rem 0 0.6rem;
}

.progress {
  height: 1.25rem;
  border: 3px solid var(--ink);
  border-radius: 1rem;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0;
  background: var(--green);
  transition: width 0.3s ease;
}

/* ---------- top 3 notes ---------- */

.notes-card h2 {
  margin-bottom: 0.5rem;
}

.note {
  display: block;
  width: 100%;
  font: inherit;
  margin-bottom: 0.5rem;
  padding: 0.35rem 0.5rem;
  border: none;
  border-bottom: 2px dashed color-mix(in srgb, currentColor 45%, transparent);
  background: transparent;
  color: inherit;
}

.note:last-child {
  margin-bottom: 0;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

@media (prefers-reduced-motion: reduce) {
  .study-table tr.current-row,
  .pomo-card.flash {
    animation: none;
  }

  .card {
    transition: none;
  }
}

/* ---------- desk toys ---------- */

#toys {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 5;
}

.toy-tools {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 6;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  opacity: 0.55;
  transition: opacity 0.2s ease;
}

.toy-tools:hover,
.toy-tools:focus-within {
  opacity: 1;
}

/* Tiny round icon controls: quiet at rest, with a label that appears to the
   left after the mouse rests on one for half a second. */
.toy-tool {
  position: relative;
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 50%;
  color: rgba(246, 240, 225, 0.9);
  background: rgba(20, 12, 6, 0.55);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  cursor: pointer;
  transition: border-color 0.15s ease;
}

.toy-tool svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.toy-tool:hover {
  border-color: rgba(255, 255, 255, 0.4);
}

.toy-tool:active {
  transform: translateY(1px);
}

.toy-tool::after {
  content: attr(data-label);
  position: absolute;
  right: calc(100% + 0.5rem);
  top: 50%;
  transform: translateY(-50%);
  padding: 0.25rem 0.6rem;
  border-radius: 0.4rem;
  font-size: 0.75rem;
  white-space: nowrap;
  color: rgba(246, 240, 225, 0.95);
  background: rgba(20, 12, 6, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s ease 0s;
}

.toy-tool:hover::after {
  opacity: 1;
  transition-delay: 0.5s;
}

.toy-tool:focus-visible::after {
  opacity: 1;
}

body.dragging-toy {
  cursor: grabbing;
  user-select: none;
  -webkit-user-select: none;
}