/* PaceSpan app. Tokens come from tokens.css; markup contract in
   docs/APP-UI.md. */

@font-face {
  font-family: "Archivo Variable";
  src: url("/fonts/archivo-latin-wdth-normal.woff2") format("woff2-variations");
  font-weight: 100 900;
  font-stretch: 62% 125%;
  font-display: swap;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body.app {
  margin: 0;
  background: var(--chalk);
  color: var(--ink);
  font-family: var(--font);
  font-size: var(--s-17);
  line-height: 1.55;
  font-variation-settings: "wdth" 100;
  -webkit-text-size-adjust: 100%;
}

a {
  color: inherit;
  text-underline-offset: 0.18em;
}

:focus-visible {
  outline: 3px solid var(--r-100);
  outline-offset: 3px;
}

.wrap {
  width: min(100% - 2 * var(--gutter), var(--max));
  margin-inline: auto;
}

.narrow {
  max-width: 40rem;
}

main.narrow {
  padding-block: 3rem 5rem;
}

.display {
  font-variation-settings: "wdth" var(--wide);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1;
  margin: 0;
}

h1.display {
  font-size: var(--s-64);
}

h2 {
  font-variation-settings: "wdth" 115;
  font-weight: 800;
  font-size: var(--s-28);
  letter-spacing: -0.01em;
  line-height: 1.1;
  margin: 0 0 1rem;
}

.lead {
  font-size: var(--s-21);
  color: var(--muted);
  max-width: 34em;
  margin: 1rem 0 2rem;
}

.num {
  font-variant-numeric: tabular-nums;
}

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

/* ------------------------------------------------------------ chrome */

.app-top {
  background: var(--tartan);
  color: #fff;
  padding-block: 0.9rem;
}

.app-top .row {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.logo {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  text-decoration: none;
  font-variation-settings: "wdth" 125;
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  line-height: 1;
}

.spectrum {
  display: flex;
  height: 6px;
  width: 100%;
}

.spectrum span {
  flex: 1;
}

.spectrum span:nth-child(1) { background: var(--r-easy); }
.spectrum span:nth-child(2) { background: var(--r-85); }
.spectrum span:nth-child(3) { background: var(--r-90); }
.spectrum span:nth-child(4) { background: var(--r-95); }
.spectrum span:nth-child(5) { background: var(--r-100); }
.spectrum span:nth-child(6) { background: var(--r-105); }
.spectrum span:nth-child(7) { background: var(--r-110); }
.spectrum span:nth-child(8) { background: var(--r-115); }

.app-top nav {
  margin-left: auto;
  display: flex;
  gap: 1.25rem;
  font-size: var(--s-14);
}

.app-top nav a,
.langs a {
  text-decoration: none;
  opacity: 0.85;
}

.app-top nav a:hover,
.langs a:hover {
  opacity: 1;
  text-decoration: underline;
}

.langs {
  display: flex;
  gap: 0.6rem;
  font-size: var(--s-14);
}

.langs a[aria-current] {
  opacity: 1;
  font-weight: 700;
  text-decoration: underline;
  text-decoration-color: var(--r-100);
  text-decoration-thickness: 2px;
}

.app-foot {
  color: var(--muted);
  font-size: var(--s-14);
  padding-block: 2.5rem 3rem;
  border-top: 2px solid var(--rule);
  margin-top: 4rem;
}

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

.bib {
  --pin: 7px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.5rem;
  padding: 0.9rem 2.4rem;
  color: #0f1e33;
  border: 2px solid #0f1e33;
  border-radius: 6px;
  font: inherit;
  font-variation-settings: "wdth" var(--wide);
  font-weight: 800;
  font-size: var(--s-21);
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.15s ease;
  background-color: #fff;
  background-image:
    radial-gradient(circle, #0f1e33 2.2px, transparent 2.6px),
    radial-gradient(circle, #0f1e33 2.2px, transparent 2.6px),
    radial-gradient(circle, #0f1e33 2.2px, transparent 2.6px),
    radial-gradient(circle, #0f1e33 2.2px, transparent 2.6px);
  background-size: 14px 14px;
  background-repeat: no-repeat;
  background-position:
    var(--pin) var(--pin),
    calc(100% - var(--pin)) var(--pin),
    var(--pin) calc(100% - var(--pin)),
    calc(100% - var(--pin)) calc(100% - var(--pin));
}

.bib:hover {
  transform: rotate(-1.2deg);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  min-height: 2.75rem;
  padding: 0.55rem 1.1rem;
  font: inherit;
  font-weight: 600;
  color: inherit;
  background: transparent;
  border: 2px solid currentColor;
  border-radius: 4px;
  text-decoration: none;
  cursor: pointer;
}

.btn:hover {
  background: rgb(127 127 127 / 0.12);
}

.btn.small {
  min-height: 2.25rem;
  padding: 0.3rem 0.8rem;
  font-size: var(--s-14);
}

/* ------------------------------------------------------------- forms */

.stack {
  display: grid;
  gap: 1.75rem;
}

.field {
  display: grid;
  gap: 0.4rem;
  border: 0;
  margin: 0;
  padding: 0;
  min-width: 0;
}

.field > label,
.field > legend {
  font-weight: 600;
  padding: 0;
}

.field-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr));
  gap: 1rem;
}

input[type="text"],
input[type="email"],
input[type="date"],
input[type="number"],
select,
textarea {
  font: inherit;
  font-size: var(--s-21);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
  background: var(--lane);
  border: 0;
  border-bottom: 3px solid var(--tartan);
  border-radius: 4px 4px 0 0;
  padding: 0.5rem 0.75rem;
  min-height: 3rem;
  width: 100%;
}

input[aria-invalid="true"] {
  border-bottom-color: var(--r-110);
}

.hint {
  margin: 0;
  font-size: var(--s-14);
  color: var(--muted);
}

.error {
  margin: 0;
  font-size: var(--s-14);
  color: var(--r-110);
  font-weight: 600;
}

/* Segmented control built from radios. */
.seg {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  border: 2px solid var(--tartan);
  border-radius: 4px;
  overflow: hidden;
  width: fit-content;
  max-width: 100%;
}

.seg label {
  position: relative;
  cursor: pointer;
}

.seg input {
  position: absolute;
  opacity: 0;
  inset: 0;
  margin: 0;
  cursor: pointer;
}

.seg span {
  display: block;
  padding: 0.6rem 1.1rem;
  font-weight: 700;
  font-variation-settings: "wdth" 112;
  border-left: 2px solid var(--tartan);
}

.seg label:first-child span {
  border-left: 0;
}

.seg input:checked + span {
  background: var(--tartan);
  color: #fff;
}

.seg input:focus-visible + span {
  outline: 3px solid var(--r-100);
  outline-offset: -3px;
}

.seg.small span {
  padding: 0.3rem 0.7rem;
  font-size: var(--s-14);
}

.notice {
  background: var(--lane);
  border-left: 6px solid var(--tartan);
  padding: 1rem 1.25rem;
  margin-block: 1.5rem;
}

.notice.warn {
  border-left-color: var(--r-105);
}

.notice p {
  margin: 0;
}

.notice p + p {
  margin-top: 0.5rem;
}

/* -------------------------------------------------------- plan hero */

.plan-hero {
  background: var(--tartan);
  color: #fff;
  padding-block: 2.5rem 3rem;
}

.kicker {
  margin: 0 0 0.5rem;
  font-weight: 600;
  color: rgb(255 255 255 / 0.8);
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem 3rem;
  margin: 2rem 0 0;
}

.meta div {
  border-top: 3px solid rgb(255 255 255 / 0.9);
  padding-top: 0.5rem;
  min-width: 7rem;
}

.meta dt {
  font-size: var(--s-14);
  color: rgb(255 255 255 / 0.75);
}

.meta dd {
  margin: 0;
  font-variation-settings: "wdth" 125;
  font-weight: 800;
  font-size: var(--s-28);
  font-variant-numeric: tabular-nums;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

/* ------------------------------------------------------------ lanes */

.paces {
  padding-block: 3rem 1rem;
}

.lanes {
  list-style: none;
  margin: 0;
  padding: 0;
  background: var(--tartan);
  color: #fff;
  border-radius: 0 90px 90px 0;
  border: 3px solid rgb(255 255 255 / 0.9);
  border-left: 0;
  overflow: hidden;
  max-width: 44rem;
}

.lane {
  display: grid;
  grid-template-columns: 4.5rem 7rem 1fr;
  align-items: center;
  height: 2.9rem;
  border-top: 3px solid rgb(255 255 255 / 0.9);
}

.lane:first-child {
  border-top: 0;
}

.lane .pct {
  font-variation-settings: "wdth" 112;
  font-weight: 600;
  font-size: var(--s-14);
  padding-left: 0.6rem;
  color: rgb(255 255 255 / 0.85);
}

.lane .pace {
  font-variation-settings: "wdth" 112;
  font-weight: 700;
  font-size: var(--s-21);
}

.lane.race .pct,
.lane.race .pace {
  color: var(--r-100);
}

.lane .strip {
  position: relative;
  height: 100%;
}

.lane .light {
  position: absolute;
  left: 0;
  top: 50%;
  height: 4px;
  margin-top: -2px;
  width: calc(var(--x) * 100%);
  background: linear-gradient(90deg, transparent, var(--c));
}

.lane .runner {
  position: absolute;
  top: 50%;
  left: calc(var(--x) * 100%);
  width: 16px;
  height: 16px;
  margin: -8px 0 0 -8px;
  border-radius: 50%;
  background: var(--c);
  box-shadow: 0 0 0 3px var(--tartan), 0 0 14px var(--c);
}

/* -------------------------------------------------------- phase map */

.phase-map-wrap {
  padding-block: 3rem 1rem;
}

.phase-map {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(1.4rem, 1fr);
  gap: 4px;
  overflow-x: auto;
  padding-bottom: 0.5rem;
}

.pm-week {
  display: grid;
  grid-template-rows: repeat(7, 1.1rem);
  gap: 3px;
  text-decoration: none;
  padding: 3px;
  border-radius: 3px;
}

.pm-week.current {
  outline: 2px solid var(--ink);
}

.pm-week:hover {
  background: var(--rule);
}

.pm-day {
  border-radius: 2px;
  background: var(--rule);
}

.pm-day[data-rung="easy"] { background: var(--r-easy); opacity: 0.55; }
.pm-day[data-rung="85"] { background: var(--r-85); }
.pm-day[data-rung="90"] { background: var(--r-90); }
.pm-day[data-rung="95"] { background: var(--r-95); }
.pm-day[data-rung="100"] { background: var(--r-100); }
.pm-day[data-rung="105"] { background: var(--r-105); }
.pm-day[data-rung="110"] { background: var(--r-110); }
.pm-day[data-rung="115"] { background: var(--r-115); }
.pm-day[data-rung="race"] { background: var(--ink); }
.pm-day[data-key="true"] { box-shadow: inset 0 0 0 2px var(--ink); }

.pm-legend {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.1rem;
  padding: 0;
  margin: 0.75rem 0 0;
  font-size: var(--s-14);
  font-variant-numeric: tabular-nums;
}

.pm-legend .chip {
  display: inline-block;
  width: 0.8em;
  height: 0.8em;
  border-radius: 2px;
  vertical-align: -0.05em;
}

/* ------------------------------------------------------------ weeks */

.week {
  padding-block: 2.5rem 0.5rem;
}

.week-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.25rem 1rem;
  border-bottom: 3px solid var(--tartan);
  padding-bottom: 0.5rem;
}

.week-head h2 {
  margin: 0;
}

.week-meta,
.week-note {
  margin: 0;
  color: var(--muted);
}

.week-note {
  margin-top: 0.75rem;
}

.sheet {
  list-style: none;
  padding: 0;
  margin: 0;
}

.day {
  display: grid;
  grid-template-columns: 8.5rem minmax(0, 1fr) 4.5rem;
  gap: 0.5rem 1.5rem;
  padding: 1rem 0;
  border-top: 2px solid var(--rule);
  align-items: start;
}

.sheet .day:first-child {
  border-top: 0;
}

.day.today {
  background: linear-gradient(90deg, rgb(242 194 27 / 0.18), transparent 70%);
}

.day.rest .stitle {
  color: var(--muted);
  font-weight: 400;
}

.day.done .dname::after {
  content: " ✓";
  color: var(--r-95);
}

.dname {
  font-weight: 600;
}

.day > .km {
  text-align: right;
  font-weight: 600;
}

.sess + .sess {
  margin-top: 0.75rem;
}

.sess.key {
  border-left: 6px solid;
  border-image: linear-gradient(var(--stripe, var(--r-100)),
      var(--stripe2, var(--stripe, var(--r-100)))) 1;
  padding-left: 1rem;
}

.stitle {
  margin: 0;
  font-weight: 600;
}

.badge {
  margin-left: 0.6rem;
  font-size: var(--s-14);
  color: var(--tartan);
  white-space: nowrap;
}

.sess ul {
  margin: 0.35rem 0 0;
  padding: 0;
  list-style: none;
  font-size: var(--s-14);
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.why {
  margin-top: 0.4rem;
  font-size: var(--s-14);
}

.why summary {
  cursor: pointer;
  color: var(--tartan);
  font-weight: 600;
}

.why p {
  margin: 0.35rem 0 0;
  max-width: 40em;
}

.log {
  grid-column: 2 / -1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.25rem;
  font-size: var(--s-14);
}

.rpe {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.locked .what {
  filter: blur(4px);
  user-select: none;
}

.locked .what .stitle {
  color: var(--muted);
}

/* ---------------------------------------------------------- paywall */

.paywall {
  background: var(--tartan);
  color: #fff;
  padding-block: 3.5rem;
  margin-block: 2rem;
}

.paywall .stack {
  max-width: 32rem;
}

.paywall .lead {
  color: inherit;
}

.paywall .notice,
.paywall .error {
  color: var(--ink);
  background: var(--lane);
  padding: 0.75rem;
}

.paywall .incl {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 2rem;
}

.paywall .incl li {
  padding: 0.5rem 0;
  border-top: 3px solid rgb(255 255 255 / 0.85);
  max-width: 28em;
}

/* ---------------------------------------------------- support + gear */

.support {
  background: var(--lane);
  border-left: 5px solid var(--r-100);
  padding: 1.25rem;
  margin-block: 2rem;
}

.support p {
  color: var(--muted);
  margin-top: 0;
}

.support.prominent {
  padding: clamp(1.25rem, 4vw, 2.5rem);
}

.support h2 {
  max-width: 28ch;
  margin-top: 0;
}

.gear {
  padding-block: 2rem;
}

.gear ul {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr));
  gap: 0 2rem;
}

.gear li a {
  display: grid;
  grid-template-rows: auto auto auto 1fr auto auto;
  gap: 0.35rem;
  height: 100%;
  padding: 1rem 0 1.25rem;
  border-top: 3px solid var(--tartan);
  color: inherit;
  text-decoration: none;
}

.gear .pic {
  display: grid;
  place-items: center;
  height: 8rem;
  margin-bottom: 0.5rem;
  background: #fff;
  border-radius: 4px;
}

.gear .pic img {
  max-height: 7.25rem;
  width: auto;
  object-fit: contain;
}

/* Category items without a photo: the brand spectrum as a quiet mark. */
.gear .pic-mark {
  width: 4rem;
  height: 6px;
  background: linear-gradient(90deg, var(--r-easy), var(--r-85), var(--r-90),
      var(--r-95), var(--r-100), var(--r-105), var(--r-110), var(--r-115));
}

.gear .badge {
  margin: 0;
  font-size: var(--s-14);
  font-weight: 600;
  color: var(--tartan);
}

.gear .name {
  font-variation-settings: "wdth" 112;
  font-weight: 800;
  font-size: var(--s-17);
  line-height: 1.25;
}

.gear .note {
  color: var(--muted);
  font-size: var(--s-14);
}

.gear .cta {
  margin-top: 0.5rem;
  font-weight: 700;
  text-decoration: underline;
  text-decoration-color: var(--r-100);
  text-decoration-thickness: 2px;
  text-underline-offset: 0.25em;
}

.gear small {
  font-size: 12px;
  color: var(--muted);
}

.plan-list {
  list-style: none;
  padding: 0;
}

.plan-list li {
  border-top: 2px solid var(--rule);
  padding: 1rem 0;
}

@media (max-width: 760px) {
  .app-top nav {
    display: none;
  }
  .langs {
    margin-left: auto;
  }
  .day {
    grid-template-columns: 1fr auto;
  }
  .day > .what {
    grid-column: 1 / -1;
  }
  .day > .km {
    grid-row: 1;
    grid-column: 2;
  }
  .log {
    grid-column: 1 / -1;
  }
  .lane {
    grid-template-columns: 3.8rem 5.6rem 1fr;
  }
}

@media print {
  .app-top,
  .app-foot,
  .actions,
  .paywall,
  .support,
  .gear,
  .log,
  .why,
  .phase-map-wrap {
    display: none !important;
  }
  body.app {
    background: #fff;
    color: #000;
    font-size: 10pt;
  }
  .plan-hero,
  .lanes {
    background: #fff;
    color: #000;
  }
  .week {
    break-inside: avoid;
    padding-block: 0.8rem 0;
  }
  .day {
    padding: 0.35rem 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
}

/* Easy-day efforts under the lanes. */
.paces dl {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2.5rem;
  margin: 1.5rem 0 0;
}

.paces dl div {
  border-top: 3px solid var(--r-easy);
  padding-top: 0.4rem;
  min-width: 8rem;
}

.paces dt {
  font-size: var(--s-14);
  color: var(--muted);
}

.paces dd {
  margin: 0;
  font-weight: 700;
  font-size: var(--s-21);
  font-variation-settings: "wdth" 112;
}

/* ------------------------------------------- pace calculator (in plan) */

.pace-calc {
  padding-block: 2.5rem 1rem;
}

.pace-calc .calc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 2rem 3rem;
  align-items: start;
}

.pace-calc .calc-grid > div {
  border-top: 3px solid var(--tartan);
  padding-top: 0.75rem;
}

.pace-calc h3 {
  font-size: var(--s-17);
  margin: 0 0 0.75rem;
}

.pace-calc input {
  max-width: 8rem;
}

.pace-calc .out {
  margin: 0.75rem 0 0;
  font-variation-settings: "wdth" 125;
  font-weight: 800;
  font-size: var(--s-40);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.pace-calc .pair {
  display: flex;
  gap: 1rem;
}

.pace-calc .tip {
  margin: 0.5rem 0 0;
  color: var(--muted);
  font-size: var(--s-14);
  max-width: 30em;
}

.scale {
  position: relative;
  height: 12px;
  margin-top: 1rem;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--r-easy) 0%, var(--r-85) 12.5%,
      var(--r-90) 25%, var(--r-95) 37.5%, var(--r-100) 50%,
      var(--r-105) 62.5%, var(--r-110) 75%, var(--r-115) 87.5%,
      var(--r-115) 100%);
}

.scale .mark {
  position: absolute;
  top: -6px;
  left: var(--x, 50%);
  width: 6px;
  height: 24px;
  margin-left: -3px;
  background: var(--ink);
  border-radius: 2px;
  transition: left 0.25s ease;
}

.scale .mark.planned {
  background: var(--lane);
  border: 2px solid var(--ink);
}

.log .actual-pace {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.log .actual-pace input {
  width: 6rem;
  min-height: 2.25rem;
  font-size: var(--s-17);
  padding: 0.25rem 0.5rem;
}

.log .pct-live {
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  min-width: 4.5rem;
}

.pace-calc [data-delta] {
  font-size: var(--s-28);
}

.session-load, .session-adjustment, .week-source {
  font-size: 0.85rem;
  color: var(--muted);
  margin: 0.3rem 0;
}
.plan-summary { padding-block: 1.5rem 0; }
.phase-notes dd { margin: 0.25rem 0 0.7rem; }
.phase-notes dt { font-weight: 700; }

@media print {
  @page { size: A4; margin: 12mm; }
  body.app > :not(.plan-document),
  .plan-document > :not([data-print-section]),
  .pace-calc, .actions, .log, .why, .strip { display: none !important; }
  .plan-hero { padding-block: 0; }
  .plan-hero .display { font-size: 24pt; margin: 0.3rem 0; }
  .plan-hero .kicker, .meta dt, .meta dd, .lane .pct, .lane .pace {
    color: #000;
  }
  .meta { margin: 0.6rem 0; gap: 1rem; }
  .meta div { border-color: #333; min-width: 5rem; }
  .meta dd { font-size: 14pt; }
  .wrap { width: 100%; max-width: none; padding-inline: 0; }
  .plan-summary, .paces { padding-block: 0.4rem; }
  .plan-summary h2, .paces h2 { font-size: 13pt; margin: 0.5rem 0; }
  .plan-summary p, .phase-notes { margin-block: 0.4rem; font-size: 9pt; }
  .phase-notes dd { margin-bottom: 0.4rem; }
  .lanes {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    max-width: none;
    border: 0;
    border-radius: 0;
  }
  .lane { display: flex; gap: 0.6rem; height: auto; padding: 0.3rem; }
  .lane .pace, .lane .pct { font-size: 10pt; }
  .paces dl { margin: 0.5rem 0 0; gap: 0.6rem 1.2rem; }
  .paces dl div { min-width: 0; border-color: #555; }
  .paces dl dt, .paces dl dd { font-size: 9pt; margin: 0.2rem 0; }
  .week { break-before: page; break-inside: auto; }
  .day { break-inside: avoid; grid-template-columns: 6.5rem 1fr 4rem;
         gap: 0.4rem 0.7rem; padding-block: 0.45rem; }
  .sess { break-inside: avoid; }
  .session-load, .session-adjustment, .week-source { font-size: 8.5pt; }
  .sess ul { margin-block: 0.35rem; }
}

@media print {
  .day.today { background: none; }
  .lane.race .pct, .lane.race .pace { color: #000; }
}

@media print {
  .plan-document.review-required .week { display: none !important; }
}