/* ============================================================
   Relay — Team inbox
   Typography: Literata (display), Work Sans (interface),
   IBM Plex Mono (labels, metadata).
   ============================================================ */

@font-face {
  font-family: "Literata";
  src: url("assets/literata.ttf") format("truetype");
  font-weight: 400 800;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Work Sans";
  src: url("assets/work-sans.ttf") format("truetype");
  font-weight: 300 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("assets/ibm-plex-mono.ttf") format("truetype");
  font-weight: 400 600;
  font-style: normal;
  font-display: swap;
}

:root {
  --paper: #f3efe4;
  --paper-deep: #eae4d6;
  --surface: #fffdf7;
  --surface-sunk: #f8f4ea;
  --ink: #1b1a21;
  --ink-soft: #55525f;
  --ink-faint: #8a8694;
  --line: #ddd6c6;
  --line-strong: #c8bda4;
  --accent: #c2411d;
  --accent-deep: #97311a;
  --focus: #2a5fd6;

  --st-todo: #6d7280;
  --st-todo-bg: #eceef1;
  --st-progress: #1c68ad;
  --st-progress-bg: #e2eef9;
  --st-blocked: #ad2b22;
  --st-blocked-bg: #f8e5e2;
  --st-done: #2c7249;
  --st-done-bg: #e2f0e6;

  --radius: 14px;
  --radius-sm: 9px;
  --shadow-sm: 0 1px 2px rgba(27, 26, 33, 0.06);
  --shadow-md: 0 10px 30px -12px rgba(27, 26, 33, 0.35);
  --shadow-lg: 0 30px 70px -25px rgba(27, 26, 33, 0.5);
  --sans: "Work Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --serif: "Literata", Georgia, "Times New Roman", serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--paper);
  background-image:
    radial-gradient(circle at 15% -10%, rgba(194, 65, 29, 0.07), transparent 45%),
    radial-gradient(circle at 100% 0%, rgba(42, 95, 214, 0.06), transparent 40%);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 100;
  padding: 10px 16px;
  background: var(--ink);
  color: #fff;
  border-radius: 0 0 10px 10px;
  font-size: 0.9rem;
  text-decoration: none;
  transition: top 0.15s ease;
}
.skip-link:focus {
  top: 0;
}

/* ---------------- Masthead ---------------- */

.masthead {
  background: var(--ink);
  color: #f6f2e9;
  border-bottom: 4px solid var(--accent);
}
.masthead__inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand__mark {
  display: inline-flex;
  color: var(--accent);
  background: rgba(255, 255, 255, 0.05);
  border-radius: 10px;
  padding: 4px;
}
.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}
.brand__name {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.6rem;
  letter-spacing: -0.01em;
}
.brand__tagline {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(246, 242, 233, 0.6);
  margin-top: 3px;
}
.masthead__note {
  margin: 0;
  text-align: right;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(246, 242, 233, 0.72);
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.masthead__kicker {
  color: var(--accent);
  font-weight: 600;
}

/* ---------------- Shell ---------------- */

.shell {
  max-width: 1120px;
  margin: 0 auto;
  padding: 28px 24px 96px;
}
.shell:focus {
  outline: none;
}

/* ---------------- Controls ---------------- */

.controls {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 240px;
  gap: 16px;
  align-items: end;
  padding: 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.field {
  display: flex;
  flex-direction: column;
  gap: 7px;
  min-width: 0;
}
.field__label {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.field__control {
  position: relative;
  display: flex;
  align-items: center;
}
.field__icon {
  position: absolute;
  left: 13px;
  color: var(--ink-faint);
  pointer-events: none;
}
input[type="search"],
select {
  width: 100%;
  font-family: var(--sans);
  font-size: 1rem;
  color: var(--ink);
  background: var(--surface-sunk);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
input[type="search"] {
  padding-left: 40px;
}
input[type="search"]::-webkit-search-cancel-button {
  cursor: pointer;
}
input[type="search"]:hover,
select:hover {
  border-color: var(--ink-faint);
}
input[type="search"]:focus,
select:focus {
  outline: none;
  background: var(--surface);
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(194, 65, 29, 0.14);
}
select {
  appearance: none;
  -webkit-appearance: none;
  padding-right: 40px;
  cursor: pointer;
}
.field__chevron {
  position: absolute;
  right: 14px;
  color: var(--ink-soft);
  pointer-events: none;
}

/* ---------------- Board ---------------- */

.board {
  margin-top: 26px;
}
.board__bar {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 10px 18px;
  padding: 0 4px 14px;
  border-bottom: 2px solid var(--ink);
}
.board__count {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.board__count-word {
  color: var(--ink-faint);
  font-size: 1rem;
  font-family: var(--sans);
  font-weight: 400;
  margin-left: 2px;
}
.board__hint {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-deep);
}
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-left: auto;
}
.chip {
  --chip-color: var(--ink-soft);
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 5px 11px;
  cursor: pointer;
  transition: all 0.15s ease;
}
.chip:hover {
  border-color: var(--ink-soft);
  color: var(--ink);
}
.chip[aria-pressed="true"] {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}
.chip__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--chip-color);
}
.chip__num {
  font-weight: 600;
  opacity: 0.65;
}

/* ---------------- Task list ---------------- */

.task-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-top: 16px;
}
.task {
  position: relative;
}
.task__open {
  display: block;
  width: 100%;
  text-align: left;
  font: inherit;
  color: inherit;
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 4px solid var(--stripe, var(--line-strong));
  border-radius: var(--radius);
  padding: 16px 18px 15px 20px;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: transform 0.14s ease, box-shadow 0.14s ease, border-color 0.14s ease, background 0.14s ease;
}
.task__open:hover {
  background: #fff;
  border-color: var(--line-strong);
  border-left-color: var(--stripe, var(--line-strong));
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}
.task__open:active {
  transform: translateY(0);
}
.task--done .task__title {
  color: var(--ink-soft);
}
.task__top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}
.task__head {
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.task__title {
  font-family: var(--serif);
  font-size: 1.16rem;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.005em;
  margin: 0;
}
.task__summary {
  margin: 6px 0 0;
  color: var(--ink-soft);
  font-size: 0.9rem;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.task__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 7px 14px;
  margin-top: 13px;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  color: var(--ink-faint);
}
.task__meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}
.task__meta-item svg {
  color: var(--ink-faint);
}
.task__project {
  color: var(--ink-soft);
  font-weight: 600;
}
.task__tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.tag {
  background: var(--paper-deep);
  color: var(--ink-soft);
  border-radius: 5px;
  padding: 2px 7px;
  font-size: 0.68rem;
}
.priority {
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.66rem;
}
.priority--high {
  color: var(--accent-deep);
}
.priority--medium {
  color: #a2650b;
}
.priority--low {
  color: var(--ink-faint);
}

/* status pill */
.pill {
  --pill-color: var(--st-todo);
  --pill-bg: var(--st-todo-bg);
  display: inline-flex;
  align-items: center;
  gap: 7px;
  flex-shrink: 0;
  background: var(--pill-bg);
  color: var(--pill-color);
  border-radius: 999px;
  padding: 4px 11px 4px 9px;
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  white-space: nowrap;
}
.pill__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--pill-color);
}
.pill--todo {
  --pill-color: var(--st-todo);
  --pill-bg: var(--st-todo-bg);
}
.pill--in-progress {
  --pill-color: var(--st-progress);
  --pill-bg: var(--st-progress-bg);
}
.pill--blocked {
  --pill-color: var(--st-blocked);
  --pill-bg: var(--st-blocked-bg);
}
.pill--done {
  --pill-color: var(--st-done);
  --pill-bg: var(--st-done-bg);
}

.task--todo {
  --stripe: var(--st-todo);
}
.task--in-progress {
  --stripe: var(--st-progress);
}
.task--blocked {
  --stripe: var(--st-blocked);
}
.task--done {
  --stripe: var(--st-done);
}

/* ---------------- Empty state ---------------- */

.empty-state {
  text-align: center;
  padding: 64px 24px;
  border: 1.5px dashed var(--line-strong);
  border-radius: var(--radius);
  margin-top: 16px;
  background: var(--surface);
}
.empty-state__art {
  color: var(--line-strong);
}
.empty-state__title {
  font-family: var(--serif);
  font-size: 1.35rem;
  margin: 16px 0 6px;
}
.empty-state__copy {
  color: var(--ink-soft);
  max-width: 42ch;
  margin: 0 auto 20px;
  font-size: 0.95rem;
}

/* ---------------- Buttons ---------------- */

.btn {
  font-family: var(--sans);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  padding: 10px 18px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.1s ease, border-color 0.15s ease;
}
.btn--primary {
  background: var(--ink);
  color: #fff;
}
.btn--primary:hover {
  background: #000;
}
.btn--primary:active {
  transform: translateY(1px);
}
.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease;
}
.icon-btn:hover {
  background: var(--paper-deep);
  border-color: var(--ink-faint);
}

/* ---------------- Detail view ---------------- */

.detail-layer {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  justify-content: flex-end;
}
.detail-layer[hidden] {
  display: none;
}
.detail-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(27, 26, 33, 0.42);
  backdrop-filter: blur(2px);
  animation: fade 0.2s ease;
}
.detail {
  position: relative;
  width: min(620px, 100%);
  height: 100%;
  background: var(--surface);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  animation: slide-in 0.28s cubic-bezier(0.2, 0.8, 0.2, 1);
  border-left: 1px solid var(--line-strong);
}
.detail:focus {
  outline: none;
}
.detail__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 22px;
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}
.detail__eyebrow {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.detail__scroll {
  overflow-y: auto;
  padding: 28px 30px 48px;
  flex: 1;
  overscroll-behavior: contain;
}
.detail__title {
  font-family: var(--serif);
  font-size: clamp(1.6rem, 3.4vw, 2.15rem);
  line-height: 1.18;
  font-weight: 700;
  letter-spacing: -0.015em;
  margin: 0 0 20px;
  text-wrap: balance;
}
.meta-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin: 0 0 30px;
}
.meta-grid__cell {
  background: var(--surface-sunk);
  padding: 12px 14px;
}
.meta-grid dt {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin: 0 0 4px;
}
.meta-grid dd {
  margin: 0;
  font-size: 0.92rem;
  font-weight: 500;
  word-break: break-word;
}
.detail__section-title {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-faint);
  font-weight: 600;
  margin: 0 0 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}
.detail__body p {
  font-size: 1.02rem;
  line-height: 1.7;
  color: var(--ink);
  margin: 0 0 16px;
}
.detail__body p:last-child {
  margin-bottom: 0;
}

.status-editor {
  margin-top: 34px;
  padding: 18px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--surface-sunk);
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 12px 18px;
}
.status-editor__text {
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.status-editor__hint {
  margin: 0;
  font-size: 0.82rem;
  color: var(--ink-soft);
}
.select--status {
  min-width: 180px;
}
.status-editor__feedback {
  grid-column: 1 / -1;
  margin: 0;
  min-height: 1.1em;
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.03em;
  color: var(--st-done);
  opacity: 0;
  transition: opacity 0.2s ease;
}
.status-editor__feedback.is-visible {
  opacity: 1;
}

/* ---------------- Toast ---------------- */

.toast {
  position: fixed;
  left: 50%;
  bottom: 26px;
  transform: translateX(-50%) translateY(12px);
  z-index: 80;
  background: var(--ink);
  color: #fff;
  font-size: 0.9rem;
  padding: 12px 20px;
  border-radius: 999px;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transition: opacity 0.2s ease, transform 0.2s ease;
  max-width: calc(100vw - 32px);
  text-align: center;
}
.toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.toast[hidden] {
  display: none;
}

/* ---------------- Motion ---------------- */

@keyframes fade {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
@keyframes slide-in {
  from {
    transform: translateX(24px);
    opacity: 0.4;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---------------- Responsive ---------------- */

@media (max-width: 760px) {
  .masthead__inner {
    padding: 14px 18px;
  }
  .masthead__note {
    display: none;
  }
  .shell {
    padding: 18px 16px 80px;
  }
  .controls {
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 15px;
  }
  .chips {
    margin-left: 0;
    width: 100%;
  }
  .board__count {
    font-size: 1.25rem;
  }
  .task__top {
    flex-direction: column-reverse;
    align-items: flex-start;
    gap: 9px;
  }
  .task__open {
    padding: 15px 15px 14px 16px;
  }
  .task__title {
    font-size: 1.08rem;
  }
  .meta-grid {
    grid-template-columns: 1fr;
  }
  .detail__scroll {
    padding: 22px 18px 48px;
  }
  .status-editor {
    grid-template-columns: 1fr;
    align-items: stretch;
  }
  .select--status {
    min-width: 0;
  }
}

@media (min-width: 761px) and (max-width: 1020px) {
  .controls {
    grid-template-columns: minmax(0, 1fr) 200px;
  }
}