.runner-tools-site {
  --tools-dark: #112f3a;
  --tools-accent: #d5eb89;
  --tools-mist: #f5f8ed;
  --tools-white: #fff;
  --tools-muted: #52666d;
  --tt-ink: var(--tools-dark);
  --tt-green-dark: var(--tools-dark);
  --tt-accent: var(--tools-accent);
  min-height: 100vh;
  background: var(--tools-mist);
  color: var(--tools-dark);
}

.tools-app-shell { min-height: 850px; display: grid; grid-template-columns: 218px minmax(0, 1fr); }
.tools-content { min-width: 0; padding: clamp(28px, 4.5vw, 58px); background: var(--tools-mist); }
.tools-hero { margin: 0 auto 24px; padding: clamp(30px, 5vw, 58px); background: var(--tools-dark); color: var(--tools-accent); border: 1px solid var(--tools-dark); box-shadow: 7px 7px 0 rgba(17, 47, 58, .18); }
.tools-hero--split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(190px, .34fr); gap: 34px; align-items: end; }
.tools-eyebrow { margin: 0 0 10px; color: var(--tools-dark); font-size: .67rem; font-weight: 950; letter-spacing: .16em; text-transform: uppercase; }
.tools-hero .tools-eyebrow { color: var(--tools-accent); }
.tools-hero h1 { margin: 0; font-family: var(--display); font-size: clamp(4rem, 9vw, 7.6rem); line-height: .82; letter-spacing: -.015em; text-transform: uppercase; }
.tools-hero > div > p:last-child, .tools-hero > p:last-child { max-width: 680px; margin: 22px 0 0; color: white; font-family: var(--editorial); font-size: clamp(1.05rem, 2.4vw, 1.45rem); line-height: 1.35; }
.tools-back-link { display: inline-block; margin-bottom: 30px; color: white; font-size: .72rem; font-weight: 900; letter-spacing: .06em; text-transform: uppercase; text-underline-offset: 5px; }
.tools-stat-block { padding: 22px; background: var(--tools-accent); color: var(--tools-dark); border: 1px solid var(--tools-accent); box-shadow: 5px 5px 0 white; }
.tools-stat-block span, .tools-stat-block small { display: block; font-size: .65rem; font-weight: 900; letter-spacing: .1em; text-transform: uppercase; }
.tools-stat-block strong { display: block; margin: 12px 0 8px; font-family: var(--display); font-size: clamp(3rem, 6vw, 5rem); line-height: .8; }
.tools-button { min-height: 48px; padding: 13px 20px; background: var(--tools-accent); color: var(--tools-dark); border: 1px solid var(--tools-dark); border-radius: 999px; font-size: .72rem; font-weight: 950; letter-spacing: .06em; text-transform: uppercase; cursor: pointer; }
.tools-button:hover, .tools-button:focus-visible { background: var(--tools-dark); color: var(--tools-accent); }
.tools-button--outline { background: white; }
.tools-note { max-width: 1180px; margin: 20px auto 0; padding: 16px 0; color: var(--tools-muted); font-size: .69rem; line-height: 1.6; }
.tools-empty { max-width: 1180px; margin: 0 auto; padding: clamp(40px, 7vw, 78px); background: white; border: 1px solid var(--tools-dark); box-shadow: 5px 5px 0 var(--tools-dark); text-align: center; }
.tools-empty > span { display: block; color: var(--tools-accent); font-family: var(--display); font-size: 4rem; -webkit-text-stroke: 1px var(--tools-dark); }
.tools-empty h2 { margin: 6px 0 10px; font-family: var(--display); font-size: clamp(2.4rem, 5vw, 4rem); line-height: .9; text-transform: uppercase; }
.tools-empty p { margin: 0; color: var(--tools-muted); font-family: var(--editorial); font-size: 1.15rem; }
.tt-nav-icon--42 { border: 1px solid currentColor; border-radius: 50%; font-size: .55rem; font-weight: 950; }

/* Activities */
.week-switcher { max-width: 1180px; margin: 0 auto 18px; min-height: 78px; display: grid; grid-template-columns: 70px 1fr 70px; align-items: stretch; background: white; border: 1px solid var(--tools-dark); box-shadow: 4px 4px 0 var(--tools-dark); }
.week-switcher > a { display: grid; place-items: center; background: var(--tools-accent); font-family: var(--display); font-size: 2rem; text-decoration: none; }
.week-switcher > a:hover, .week-switcher > a:focus-visible { background: var(--tools-dark); color: var(--tools-accent); }
.week-switcher > div { padding: 14px; display: grid; place-items: center; text-align: center; }
.week-switcher span, .week-switcher strong { display: block; }
.week-switcher span { margin-bottom: 5px; color: var(--tools-muted); font-size: .58rem; font-weight: 900; letter-spacing: .14em; text-transform: uppercase; }
.week-switcher strong { font-family: var(--display); font-size: clamp(1.35rem, 3vw, 2.1rem); letter-spacing: .02em; text-transform: uppercase; }
.activity-list { max-width: 1180px; margin: 0 auto; display: grid; gap: 10px; }
.activity-row { min-width: 0; display: grid; grid-template-columns: 82px minmax(0, 1fr) 190px; background: white; border: 1px solid var(--tools-dark); box-shadow: 3px 3px 0 rgba(17, 47, 58, .25); }
.activity-date { padding: 18px 10px; display: grid; place-items: center; align-content: center; background: var(--tools-accent); border-right: 1px solid var(--tools-dark); text-align: center; }
.activity-date span, .activity-date small { font-size: .61rem; font-weight: 900; letter-spacing: .1em; text-transform: uppercase; }
.activity-date strong { margin: 3px 0; font-family: var(--display); font-size: 2.7rem; line-height: .86; }
.activity-main { min-width: 0; padding: 18px 22px; }
.activity-title { display: flex; align-items: center; gap: 10px; }
.activity-title > span { flex: 0 0 auto; padding: 5px 8px; background: var(--tools-dark); color: var(--tools-accent); border-radius: 999px; font-size: .52rem; font-weight: 900; letter-spacing: .06em; text-transform: uppercase; }
.activity-title h2 { min-width: 0; margin: 0; overflow: hidden; font-family: var(--display); font-size: clamp(1.35rem, 3vw, 2.1rem); line-height: .95; text-overflow: ellipsis; text-transform: uppercase; white-space: nowrap; }
.activity-main dl { margin: 17px 0 0; display: grid; grid-template-columns: repeat(5, 1fr); }
.activity-main dl div { min-width: 0; padding: 0 10px; border-left: 1px solid rgba(17, 47, 58, .18); }
.activity-main dl div:first-child { padding-left: 0; border-left: 0; }
.activity-main dt, .activity-main dd { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.activity-main dt { color: var(--tools-muted); font-size: .52rem; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.activity-main dd { margin: 6px 0 0; font-size: .7rem; font-weight: 850; }
.activity-fuel { padding: 17px; display: flex; flex-direction: column; justify-content: center; background: var(--tools-dark); color: white; border-left: 1px solid var(--tools-dark); }
.activity-fuel > span { color: var(--tools-accent); font-size: .54rem; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; }
.activity-fuel > strong { margin-top: 8px; font-family: var(--display); font-size: 1.45rem; text-transform: uppercase; }
.activity-fuel > small { margin-top: 4px; color: #bfd0d5; font-size: .57rem; line-height: 1.35; }
.activity-fuel.low-carb { background: white; color: var(--tools-dark); }
.activity-fuel.low-carb > span { color: var(--tools-muted); }
.activity-fuel.low-carb > small { color: var(--tools-muted); }
.gel-icon-row { margin: 8px 0 2px; display: flex; flex-wrap: wrap; gap: 4px; }
.gel-icon-row .gel-icon { width: 12px; height: 21px; display: block; fill: var(--tools-accent); }

/* Nutrition */
.nutrition-controls { max-width: 1180px; margin: 0 auto 12px; padding: 20px; display: grid; grid-template-columns: minmax(240px, 1.8fr) repeat(4, minmax(120px, 1fr)) auto; align-items: end; gap: 10px; background: white; border: 1px solid var(--tools-dark); box-shadow: 4px 4px 0 var(--tools-dark); }
.nutrition-control { min-width: 0; }
.nutrition-control > span { display: block; margin-bottom: 7px; color: var(--tools-muted); font-size: .55rem; font-weight: 900; letter-spacing: .1em; text-transform: uppercase; }
.nutrition-control select, .nutrition-control input { width: 100%; height: 45px; padding: 9px; background: var(--tools-mist); color: var(--tools-dark); border: 1px solid var(--tools-dark); border-radius: 0; font-size: .68rem; }
.unit-field { position: relative; }
.unit-field input { padding-right: 34px; }
.unit-field i { position: absolute; right: 10px; top: 50%; color: var(--tools-muted); font-size: .65rem; font-style: normal; transform: translateY(-50%); }
.nutrition-save-row { max-width: 1180px; margin: 0 auto 18px; padding: 12px 14px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.nutrition-save-row p { margin: 0; color: var(--tools-muted); font-size: .69rem; }
.run-summary { max-width: 1180px; margin: 0 auto 18px; padding: 18px 22px; display: flex; align-items: center; justify-content: space-between; gap: 22px; background: var(--tools-dark); color: white; border: 1px solid var(--tools-dark); }
.run-summary-title { min-width: 220px; display: flex; align-items: center; gap: 11px; }
.run-summary-title > span { padding: 6px 8px; background: var(--tools-accent); color: var(--tools-dark); font-size: .55rem; font-weight: 950; text-transform: uppercase; }
.run-summary-title strong, .run-summary-title small { display: block; }
.run-summary-title strong { max-width: 290px; overflow: hidden; font-family: var(--display); font-size: 1.25rem; text-overflow: ellipsis; text-transform: uppercase; white-space: nowrap; }
.run-summary-title small { margin-top: 4px; color: #bfd0d5; font-size: .58rem; }
.run-summary dl { flex: 1; margin: 0; display: grid; grid-template-columns: repeat(6, 1fr); }
.run-summary dl div { min-width: 0; padding-left: 10px; border-left: 1px solid rgba(213, 235, 137, .35); }
.run-summary dt { color: var(--tools-accent); font-size: .5rem; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.run-summary dd { margin: 5px 0 0; overflow: hidden; font-size: .65rem; font-weight: 800; text-overflow: ellipsis; white-space: nowrap; }
.fuel-card-grid { max-width: 1180px; margin: 0 auto; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.fuel-card { min-width: 0; min-height: 390px; padding: 25px; display: flex; flex-direction: column; background: white; border: 1px solid var(--tools-dark); box-shadow: 4px 4px 0 var(--tools-dark); }
.fuel-card--dark { background: var(--tools-dark); color: white; box-shadow: 4px 4px 0 var(--tools-accent); }
.fuel-card-kicker { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.fuel-card-kicker span { width: 30px; height: 30px; display: grid; place-items: center; border: 1px solid currentColor; border-radius: 50%; font-size: .61rem; font-weight: 900; }
.fuel-card-kicker strong { color: var(--tools-muted); font-size: .62rem; font-weight: 950; letter-spacing: .14em; text-transform: uppercase; }
.fuel-card--dark .fuel-card-kicker strong { color: var(--tools-accent); }
.fuel-card h2 { margin: 35px 0 8px; font-family: var(--display); font-size: clamp(2.5rem, 4.5vw, 4rem); line-height: .85; text-transform: uppercase; }
.fuel-card h2 em { color: var(--tools-muted); font-family: var(--editorial); font-size: .6em; font-style: normal; }
.fuel-card h3 { margin: 0; color: var(--tools-muted); font-size: .56rem; letter-spacing: .08em; line-height: 1.45; text-transform: uppercase; }
.fuel-card--dark h3 { color: var(--tools-accent); }
.fuel-card > p { margin: 18px 0 24px; color: var(--tools-muted); font-family: var(--editorial); font-size: 1rem; line-height: 1.45; }
.fuel-card--dark > p { color: #d3dfe2; }
.fuel-card details { margin-top: auto; padding-top: 14px; border-top: 1px solid rgba(17, 47, 58, .2); }
.fuel-card--dark details { border-color: rgba(213, 235, 137, .35); }
.fuel-card summary { color: inherit; cursor: pointer; font-size: .65rem; font-weight: 900; }
.fuel-card details p { color: inherit; font-size: .68rem; line-height: 1.55; }
.fuel-card details a { color: inherit; font-size: .62rem; font-weight: 900; text-underline-offset: 4px; }
.nutrition-method { max-width: 1180px; margin: 18px auto 0; padding: 28px; display: grid; grid-template-columns: 1.2fr .8fr; gap: 38px; background: var(--tools-accent); border: 1px solid var(--tools-dark); }
.nutrition-method .confidence { display: inline-block; padding: 5px 9px; background: var(--tools-dark); color: var(--tools-accent); border-radius: 999px; font-size: .55rem; font-weight: 900; text-transform: uppercase; }
.nutrition-method h2 { margin: 14px 0 7px; font-family: var(--display); font-size: 2.3rem; text-transform: uppercase; }
.nutrition-method p { margin: 0; font-size: .72rem; line-height: 1.6; }
.nutrition-method blockquote { margin: 0; padding-left: 28px; border-left: 1px solid var(--tools-dark); font-family: var(--editorial); font-size: 1.3rem; line-height: 1.35; }
.nutrition-method blockquote span { display: block; margin-bottom: 9px; font-family: var(--utility); font-size: .55rem; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; }

/* Marathon */
.prediction-grid { max-width: 1180px; margin: 0 auto; display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(280px, .65fr); gap: 12px; }
.prediction-card { min-width: 0; padding: clamp(25px, 4vw, 42px); background: var(--tools-dark); color: white; border: 1px solid var(--tools-dark); box-shadow: 6px 6px 0 var(--tools-accent); }
.prediction-kicker { display: flex; align-items: center; justify-content: space-between; gap: 18px; color: var(--tools-accent); font-size: .63rem; font-weight: 950; letter-spacing: .13em; text-transform: uppercase; }
.prediction-kicker a { padding: 7px 10px; border: 1px solid var(--tools-accent); border-radius: 999px; text-decoration: none; }
.prediction-body { margin-top: 28px; display: grid; grid-template-columns: minmax(0, 1fr) 190px; gap: 24px; }
.prediction-body h1 { margin: 0; color: var(--tools-accent); font-family: var(--display); font-size: clamp(4.8rem, 8vw, 7.4rem); line-height: .78; letter-spacing: -.02em; }
.prediction-body h1 + p { margin: 13px 0 0; font-size: .62rem; font-weight: 900; letter-spacing: .1em; text-transform: uppercase; }
.race-nutrition { margin: 25px 0 0; padding-top: 18px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 13px; border-top: 1px solid rgba(213, 235, 137, .35); }
.race-nutrition dt { color: var(--tools-accent); font-size: .52rem; font-weight: 950; letter-spacing: .09em; text-transform: uppercase; }
.race-nutrition dd { margin: 6px 0 0; font-size: .7rem; font-weight: 850; }
.race-nutrition small { display: block; margin-top: 4px; color: #bfd0d5; font-size: .52rem; line-height: 1.4; }
.profile-basis { display: block; margin-top: 15px; color: #9cb1b7; font-size: .53rem; line-height: 1.45; }
.marathon-gels { padding: 19px; display: flex; flex-direction: column; justify-content: center; background: #183e4a; border: 1px solid rgba(213, 235, 137, .55); }
.marathon-gels > span { color: var(--tools-accent); font-size: .54rem; font-weight: 950; letter-spacing: .1em; text-transform: uppercase; }
.marathon-gels strong { font-family: var(--display); font-size: 1.6rem; text-transform: uppercase; }
.marathon-gels small { margin-top: 5px; color: #bfd0d5; font-size: .55rem; line-height: 1.4; }
.prediction-metrics { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.prediction-metrics > article, .prediction-metrics > a article { min-height: 166px; padding: 20px; display: flex; flex-direction: column; background: white; border: 1px solid var(--tools-dark); box-shadow: 3px 3px 0 var(--tools-dark); }
.prediction-metrics > a { color: inherit; text-decoration: none; }
.prediction-metrics span { color: var(--tools-muted); font-size: .54rem; font-weight: 950; letter-spacing: .09em; text-transform: uppercase; }
.prediction-metrics strong { margin-top: auto; font-family: var(--display); font-size: 2.7rem; line-height: .85; }
.prediction-metrics small { margin-top: 7px; color: var(--tools-muted); font-size: .55rem; line-height: 1.35; }
.prediction-metrics b { margin-top: 9px; color: var(--tools-dark); font-size: .58rem; }
.marathon-lower-grid { max-width: 1180px; margin: 18px auto 0; display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(300px, .8fr); gap: 12px; }
.training-chart-card, .model-card { padding: 26px; background: white; border: 1px solid var(--tools-dark); box-shadow: 4px 4px 0 var(--tools-dark); }
.card-heading { display: flex; align-items: start; justify-content: space-between; gap: 18px; }
.card-heading h2 { margin: 0; font-family: var(--display); font-size: 2.2rem; line-height: .9; text-transform: uppercase; }
.card-heading > span { padding: 6px 9px; background: var(--tools-accent); border: 1px solid var(--tools-dark); border-radius: 999px; font-size: .55rem; font-weight: 900; text-transform: uppercase; }
.training-chart { height: 185px; margin-top: 25px; display: grid; grid-template-columns: repeat(8, 1fr); gap: 8px; align-items: end; }
.training-chart > div { height: 100%; display: grid; grid-template-rows: 1fr auto auto; gap: 4px; text-align: center; }
.training-chart i { display: flex; align-items: end; background: var(--tools-mist); border: 1px solid rgba(17, 47, 58, .2); }
.training-chart i b { width: 100%; display: block; background: var(--tools-accent); border-top: 1px solid var(--tools-dark); }
.training-chart strong { font-size: .62rem; }
.training-chart span { color: var(--tools-muted); font-size: .5rem; font-weight: 900; }
.training-chart-card > p, .model-card > p { margin: 17px 0 0; color: var(--tools-muted); font-size: .65rem; line-height: 1.55; }
.model-card dl { margin: 22px 0 0; }
.model-card dl > div { padding: 13px 0; display: flex; align-items: center; justify-content: space-between; gap: 13px; border-top: 1px solid rgba(17, 47, 58, .16); }
.model-card dt { font-size: .65rem; font-weight: 900; }
.model-card dt small { display: block; margin-top: 4px; color: var(--tools-muted); font-weight: 500; }
.model-status { padding: 5px 8px; border-radius: 999px; font-size: .52rem; font-weight: 900; white-space: nowrap; }
.model-status.inside { background: var(--tools-accent); }
.model-status.outside { background: #ffe0d4; color: #7f331f; }
.marathon-method { max-width: 1180px; margin: 18px auto 0; padding: clamp(28px, 4vw, 45px); display: grid; grid-template-columns: 1.1fr .9fr; gap: 45px; align-items: center; background: var(--tools-accent); border: 1px solid var(--tools-dark); }
.marathon-method h2 { margin: 0; font-family: var(--display); font-size: clamp(2.7rem, 5vw, 4.4rem); line-height: .86; text-transform: uppercase; }
.marathon-method > div:first-child > p:not(.tools-eyebrow) { color: var(--tools-dark); font-family: var(--editorial); font-size: 1.05rem; line-height: 1.45; }
.marathon-method a { font-size: .65rem; font-weight: 900; text-underline-offset: 4px; }
.formula-card { padding: 26px; background: var(--tools-dark); color: white; border: 1px solid var(--tools-dark); }
.formula-card span { color: var(--tools-accent); font-size: .55rem; font-weight: 900; letter-spacing: .1em; text-transform: uppercase; }
.formula-card strong { display: block; margin: 20px 0 12px; font-family: var(--editorial); font-size: clamp(1.5rem, 3vw, 2.25rem); font-weight: 400; }
.formula-card p { margin: 0; color: #bfd0d5; font-size: .63rem; }

/* Marathon activity detail */
.pace-equation { max-width: 1180px; margin: 0 auto 18px; padding: 22px; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 28px; background: var(--tools-accent); border: 1px solid var(--tools-dark); box-shadow: 4px 4px 0 var(--tools-dark); }
.pace-equation span { display: block; font-size: .52rem; font-weight: 900; letter-spacing: .1em; text-transform: uppercase; }
.pace-equation strong { display: block; margin-top: 7px; font-family: var(--display); font-size: 2.25rem; text-transform: uppercase; }
.pace-equation p { margin: 0; font-family: var(--editorial); font-size: 1rem; text-align: center; }
.pace-equation small { color: var(--tools-muted); font-size: .58rem; text-align: right; }
.pace-list-heading { max-width: 1180px; margin: 0 auto; padding: 10px 15px; display: grid; grid-template-columns: minmax(220px, 1.3fr) repeat(5, minmax(80px, .7fr)); background: var(--tools-dark); color: var(--tools-accent); font-size: .5rem; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.pace-activity-list { max-width: 1180px; margin: 0 auto; border: 1px solid var(--tools-dark); border-top: 0; }
.pace-activity-row { padding: 15px; display: grid; grid-template-columns: minmax(220px, 1.3fr) minmax(0, 3.5fr); align-items: center; background: white; border-top: 1px solid rgba(17, 47, 58, .2); }
.pace-activity-row:first-child { border-top: 0; }
.pace-activity-row > div span, .pace-activity-row > div strong, .pace-activity-row > div small { display: block; }
.pace-activity-row > div span { color: var(--tools-muted); font-size: .52rem; }
.pace-activity-row > div strong { margin: 4px 0; font-family: var(--display); font-size: 1.15rem; text-transform: uppercase; }
.pace-activity-row > div small { color: var(--tools-muted); font-size: .52rem; }
.pace-activity-row dl { margin: 0; display: grid; grid-template-columns: repeat(5, 1fr); }
.pace-activity-row dl div { padding-left: 12px; border-left: 1px solid rgba(17, 47, 58, .16); }
.pace-activity-row dt { display: none; color: var(--tools-muted); font-size: .5rem; font-weight: 900; text-transform: uppercase; }
.pace-activity-row dd { margin: 0; font-size: .65rem; font-weight: 800; }
.pace-activity-row .pace-used dd { color: var(--tools-dark); font-family: var(--display); font-size: 1.12rem; }

/* Race Blueprint */
.blueprint-content { background: #f4f3ee; }
.blueprint-hero-action { align-self: end; justify-self: end; display: inline-flex; align-items: center; text-decoration: none; }
.blueprint-list { max-width: 1180px; margin: 0 auto; display: grid; gap: 12px; }
.blueprint-list-card { min-width: 0; display: grid; grid-template-columns: 100px minmax(0, 1fr) 58px; align-items: stretch; background: white; color: var(--tools-dark); border: 1px solid var(--tools-dark); box-shadow: 4px 4px 0 var(--tools-dark); text-decoration: none; }
.blueprint-list-card:hover, .blueprint-list-card:focus-visible { box-shadow: 7px 7px 0 var(--tools-accent); transform: translate(-2px, -2px); }
.blueprint-list-date { padding: 20px 12px; display: grid; place-items: center; align-content: center; background: var(--tools-accent); border-right: 1px solid var(--tools-dark); text-align: center; }
.blueprint-list-date span, .blueprint-list-date small { font-size: .58rem; font-weight: 950; letter-spacing: .1em; text-transform: uppercase; }
.blueprint-list-date strong { margin: 4px 0; font-family: var(--display); font-size: 3rem; line-height: .82; }
.blueprint-list-main { min-width: 0; padding: 20px 25px; }
.blueprint-list-main > span { color: var(--tools-muted); font-size: .58rem; font-weight: 950; letter-spacing: .12em; text-transform: uppercase; }
.blueprint-list-main h2 { margin: 7px 0 17px; overflow: hidden; font-family: var(--display); font-size: clamp(2rem, 4vw, 3.4rem); line-height: .88; text-overflow: ellipsis; text-transform: uppercase; white-space: nowrap; }
.blueprint-list-main dl { margin: 0; display: grid; grid-template-columns: repeat(4, 1fr); }
.blueprint-list-main dl div { padding: 0 14px; border-left: 1px solid rgba(17, 47, 58, .2); }
.blueprint-list-main dl div:first-child { padding-left: 0; border-left: 0; }
.blueprint-list-main dt { color: var(--tools-muted); font-size: .52rem; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.blueprint-list-main dd { margin: 5px 0 0; font-size: .68rem; font-weight: 850; }
.blueprint-list-arrow { display: grid; place-items: center; background: var(--tools-dark); color: var(--tools-accent); font-family: var(--display); font-size: 2rem; }
.tools-empty .tools-button { margin-top: 24px; display: inline-flex; text-decoration: none; }
.blueprint-form-hero { max-width: 1180px; }
.blueprint-form { max-width: 1180px; margin: 0 auto; padding: clamp(24px, 4vw, 42px); background: white; border: 1px solid var(--tools-dark); box-shadow: 5px 5px 0 var(--tools-dark); }
.blueprint-form-errors { margin-bottom: 20px; padding: 16px 18px; background: #ffe0d4; color: #7f331f; border: 1px solid #7f331f; }
.blueprint-form-errors strong { font-size: .7rem; letter-spacing: .08em; text-transform: uppercase; }
.blueprint-form-errors ul { margin: 8px 0 0; padding-left: 20px; font-size: .7rem; line-height: 1.5; }
.blueprint-form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.blueprint-field { min-width: 0; display: block; }
.blueprint-field--wide { grid-column: 1 / -1; }
.blueprint-field > span { display: block; margin-bottom: 8px; color: var(--tools-muted); font-size: .58rem; font-weight: 950; letter-spacing: .1em; text-transform: uppercase; }
.blueprint-field input, .blueprint-field select, .blueprint-field textarea { width: 100%; min-height: 50px; padding: 12px 13px; background: var(--tools-mist); color: var(--tools-dark); border: 1px solid var(--tools-dark); border-radius: 0; font: inherit; font-size: .76rem; }
.blueprint-field textarea { resize: vertical; line-height: 1.5; }
.blueprint-field small { display: block; margin-top: 7px; color: var(--tools-muted); font-size: .58rem; line-height: 1.45; }
.blueprint-prefill-note { margin: 18px 0 0; padding: 13px 15px; background: var(--tools-accent); border: 1px solid var(--tools-dark); font-size: .67rem; line-height: 1.5; }
.blueprint-form-actions { margin-top: 24px; display: flex; align-items: center; gap: 18px; }
.blueprint-text-link { color: var(--tools-dark); font-size: .65rem; font-weight: 900; text-underline-offset: 4px; text-transform: uppercase; }
.blueprint-page-actions { max-width: 1180px; margin: 0 auto 14px; display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.blueprint-page-actions > a { color: var(--tools-dark); font-size: .65rem; font-weight: 900; text-underline-offset: 4px; text-transform: uppercase; }
.blueprint-page-actions > div { display: flex; align-items: center; gap: 10px; }
.blueprint-page-actions .tools-button { display: inline-flex; align-items: center; text-decoration: none; }
.blueprint-delete-button { padding: 7px; background: transparent; color: #7f331f; border: 0; cursor: pointer; font-size: .62rem; font-weight: 900; text-decoration: underline; text-underline-offset: 4px; text-transform: uppercase; }
.race-card-hero { max-width: 1180px; margin: 0 auto 16px; padding: clamp(28px, 5vw, 54px); display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(420px, .95fr); gap: 40px; align-items: end; background: var(--tools-dark); color: white; border: 1px solid var(--tools-dark); box-shadow: 7px 7px 0 var(--tools-accent); }
.race-card-hero .tools-eyebrow { color: var(--tools-accent); }
.race-card-hero h1 { margin: 0; color: var(--tools-accent); font-family: var(--display); font-size: clamp(4rem, 8vw, 7rem); line-height: .82; text-transform: uppercase; }
.race-card-hero h1 + p { margin: 16px 0 0; font-family: var(--editorial); font-size: 1.2rem; }
.race-card-hero dl { margin: 0; display: grid; grid-template-columns: repeat(2, 1fr); border: 1px solid rgba(213, 235, 137, .55); }
.race-card-hero dl div { min-height: 108px; padding: 17px; display: flex; flex-direction: column; justify-content: center; border: 1px solid rgba(213, 235, 137, .25); }
.race-card-hero dt { color: var(--tools-accent); font-size: .52rem; font-weight: 950; letter-spacing: .1em; text-transform: uppercase; }
.race-card-hero dd { margin: 8px 0 0; font-family: var(--display); font-size: clamp(1.65rem, 3vw, 2.5rem); line-height: .9; text-transform: uppercase; }
.race-card-hero dl small { margin-top: 4px; color: #bfd0d5; font-size: .52rem; }
.blueprint-section { max-width: 1180px; margin: 16px auto 0; padding: clamp(24px, 4vw, 40px); background: white; border: 1px solid var(--tools-dark); box-shadow: 4px 4px 0 var(--tools-dark); }
.blueprint-section--dark { background: var(--tools-dark); color: white; box-shadow: 4px 4px 0 var(--tools-accent); }
.blueprint-section-heading { display: flex; align-items: end; justify-content: space-between; gap: 30px; }
.blueprint-section-heading h2 { margin: 0; font-family: var(--display); font-size: clamp(2.5rem, 5vw, 4.4rem); line-height: .86; text-transform: uppercase; }
.blueprint-section-heading > p { max-width: 440px; margin: 0; color: var(--tools-muted); font-family: var(--editorial); font-size: 1rem; line-height: 1.45; }
.blueprint-section--dark .tools-eyebrow, .blueprint-section--dark .blueprint-section-heading > p { color: var(--tools-accent); }
.blueprint-pace-grid { margin-top: 25px; display: grid; grid-template-columns: repeat(5, 1fr); border: 1px solid var(--tools-dark); }
.blueprint-pace-grid article { min-width: 0; padding: 18px; border-left: 1px solid var(--tools-dark); }
.blueprint-pace-grid article:first-child { border-left: 0; }
.blueprint-pace-grid span, .blueprint-pace-grid strong, .blueprint-pace-grid b { display: block; }
.blueprint-pace-grid span { color: var(--tools-muted); font-size: .55rem; font-weight: 900; }
.blueprint-pace-grid strong { margin: 12px 0 30px; font-family: var(--display); font-size: 1.4rem; text-transform: uppercase; }
.blueprint-pace-grid b { padding-top: 12px; border-top: 1px solid rgba(17, 47, 58, .2); font-size: .68rem; }
.fuel-timeline { margin: 30px 0 0; padding: 0 0 20px; display: flex; justify-content: space-between; gap: 8px; overflow-x: auto; list-style: none; border-bottom: 1px solid rgba(213, 235, 137, .35); }
.fuel-timeline li { min-width: 76px; display: grid; justify-items: center; position: relative; }
.fuel-timeline li::after { width: calc(100% + 8px); height: 1px; position: absolute; left: 50%; top: 45px; z-index: 0; background: var(--tools-accent); content: ""; }
.fuel-timeline li:last-child::after { display: none; }
.fuel-timeline span { color: var(--tools-accent); font-size: .55rem; font-weight: 900; }
.fuel-timeline .gel-icon { width: 20px; height: 34px; margin: 8px 0; position: relative; z-index: 1; fill: var(--tools-accent); }
.fuel-timeline strong { font-size: .55rem; text-transform: uppercase; }
.packing-list { margin: 25px 0 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); border: 1px solid var(--tools-dark); list-style: none; }
.packing-list li { min-height: 58px; padding: 13px 16px; display: flex; align-items: center; gap: 13px; border: 1px solid rgba(17, 47, 58, .16); font-size: .68rem; font-weight: 800; }
.packing-list span { width: 26px; height: 26px; flex: 0 0 auto; display: grid; place-items: center; background: var(--tools-accent); border: 1px solid var(--tools-dark); border-radius: 50%; font-size: .5rem; font-weight: 900; }
.rehearsal-section .tools-button { display: inline-flex; align-items: center; flex: 0 0 auto; text-decoration: none; }
.rehearsal-empty { margin-top: 24px; padding: 22px; background: var(--tools-mist); border: 1px dashed var(--tools-dark); }
.rehearsal-empty strong { font-family: var(--display); font-size: 1.5rem; text-transform: uppercase; }
.rehearsal-empty p { margin: 7px 0 0; color: var(--tools-muted); font-size: .68rem; line-height: 1.5; }
.rehearsal-list { margin-top: 25px; display: grid; gap: 12px; }
.rehearsal-list article { padding: 20px; background: var(--tools-mist); border: 1px solid var(--tools-dark); }
.rehearsal-list header { display: flex; align-items: start; justify-content: space-between; gap: 20px; }
.rehearsal-list header span { color: var(--tools-muted); font-size: .55rem; font-weight: 900; text-transform: uppercase; }
.rehearsal-list h3 { margin: 5px 0 0; font-family: var(--display); font-size: 1.6rem; text-transform: uppercase; }
.rehearsal-list header > strong { font-size: .63rem; }
.rehearsal-list dl { margin: 18px 0 0; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid rgba(17, 47, 58, .2); }
.rehearsal-list dl div { padding: 13px 10px 0; border-left: 1px solid rgba(17, 47, 58, .2); }
.rehearsal-list dl div:first-child { padding-left: 0; border-left: 0; }
.rehearsal-list dt { color: var(--tools-muted); font-size: .5rem; font-weight: 900; text-transform: uppercase; }
.rehearsal-list dd { margin: 5px 0 0; font-size: .68rem; font-weight: 850; }
.rehearsal-list article > p { margin: 18px 0 0; font-family: var(--editorial); font-size: 1rem; }
.rehearsal-actions { margin-top: 16px; display: flex; gap: 14px; }
.rehearsal-actions a, .rehearsal-actions button { padding: 0; background: none; color: var(--tools-dark); border: 0; cursor: pointer; font-size: .58rem; font-weight: 900; text-decoration: underline; text-underline-offset: 4px; text-transform: uppercase; }
.rehearsal-form { max-width: 1180px; margin: 0 auto; padding: clamp(24px, 4vw, 42px); background: white; border: 1px solid var(--tools-dark); box-shadow: 5px 5px 0 var(--tools-dark); }
.rehearsal-activity-field { margin-bottom: 22px; }
.rehearsal-strava-error { padding: 15px; background: #ffe0d4; color: #7f331f; border: 1px solid #7f331f; font-size: .68rem; line-height: 1.5; }
.rehearsal-question-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.rehearsal-question-grid fieldset { margin: 0; padding: 15px; border: 1px solid var(--tools-dark); }
.rehearsal-question-grid legend { padding: 0 7px; font-size: .58rem; font-weight: 950; letter-spacing: .08em; text-transform: uppercase; }
.rehearsal-question-grid label { margin-top: 7px; display: flex; cursor: pointer; }
.rehearsal-question-grid label span { width: 100%; min-height: 42px; display: grid; place-items: center; background: var(--tools-mist); border: 1px solid rgba(17, 47, 58, .35); font-size: .62rem; font-weight: 900; text-transform: uppercase; }
.rehearsal-question-grid input { position: absolute; opacity: 0; }
.rehearsal-question-grid input:checked + span { background: var(--tools-accent); border-color: var(--tools-dark); }
.rehearsal-question-grid input:focus-visible + span { outline: 3px solid var(--tools-dark); outline-offset: 2px; }
.rehearsal-detail-grid { margin-top: 20px; display: grid; grid-template-columns: minmax(150px, .25fr) minmax(0, 1fr); gap: 18px; align-items: start; }
.rehearsal-run-snapshot { margin-bottom: 22px; padding: 19px; display: grid; grid-template-columns: 1fr 1fr; gap: 24px; background: var(--tools-dark); color: white; }
.rehearsal-run-snapshot span { color: var(--tools-accent); font-size: .55rem; font-weight: 900; text-transform: uppercase; }
.rehearsal-run-snapshot h2 { margin: 5px 0; font-family: var(--display); font-size: 1.8rem; text-transform: uppercase; }
.rehearsal-run-snapshot p { margin: 0; color: #bfd0d5; font-size: .6rem; }
.rehearsal-run-snapshot dl { margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); }
.rehearsal-run-snapshot dl div { padding-left: 12px; border-left: 1px solid rgba(213, 235, 137, .35); }
.rehearsal-run-snapshot dt { color: var(--tools-accent); font-size: .5rem; font-weight: 900; text-transform: uppercase; }
.rehearsal-run-snapshot dd { margin: 6px 0 0; font-size: .65rem; font-weight: 850; }
.rehearsal-no-runs { margin-top: 18px; box-shadow: none; }

@media (max-width: 1080px) {
  .nutrition-controls { grid-template-columns: repeat(3, 1fr); }
  .nutrition-control--activity { grid-column: span 2; }
  .run-summary { align-items: flex-start; flex-direction: column; }
  .run-summary dl { width: 100%; }
  .prediction-grid { grid-template-columns: 1fr; }
  .prediction-metrics > article, .prediction-metrics > a article { min-height: 135px; }
}

@media (max-width: 1000px) {
  .tools-app-shell { grid-template-columns: 1fr; }
  .tools-app-shell .tt-sidebar { padding: 13px 18px; flex-direction: row; align-items: center; overflow-x: auto; }
  .tools-app-shell .tt-sidebar nav { display: flex; }
  .tools-app-shell .tt-nav-item { white-space: nowrap; }
  .tools-app-shell .tt-athlete-card { margin: 0 0 0 auto; padding: 0 12px; border: 0; }
  .tools-app-shell .tt-disconnect-button { width: auto; white-space: nowrap; }
  .activity-row { grid-template-columns: 72px minmax(0, 1fr); }
  .activity-fuel { grid-column: 1 / 3; border-left: 0; border-top: 1px solid var(--tools-dark); }
  .marathon-lower-grid, .marathon-method { grid-template-columns: 1fr; }
  .race-card-hero { grid-template-columns: 1fr; }
  .blueprint-pace-grid { grid-template-columns: repeat(3, 1fr); }
  .blueprint-pace-grid article:nth-child(4) { border-left: 0; border-top: 1px solid var(--tools-dark); }
  .blueprint-pace-grid article:nth-child(5) { border-top: 1px solid var(--tools-dark); }
}

@media (max-width: 760px) {
  .tools-content { padding: 22px 12px 42px; }
  .tools-hero--split, .prediction-body, .nutrition-method { grid-template-columns: 1fr; }
  .tools-stat-block { max-width: 250px; }
  .week-switcher { grid-template-columns: 52px 1fr 52px; }
  .activity-row { grid-template-columns: 60px minmax(0, 1fr); }
  .activity-main { padding: 14px; }
  .activity-title { align-items: flex-start; flex-direction: column; }
  .activity-title h2 { white-space: normal; }
  .activity-main dl { grid-template-columns: repeat(2, 1fr); gap: 12px 0; }
  .activity-main dl div:nth-child(odd) { padding-left: 0; border-left: 0; }
  .nutrition-controls { grid-template-columns: 1fr; }
  .nutrition-control--activity { grid-column: auto; }
  .nutrition-save-row { align-items: stretch; flex-direction: column; }
  .fuel-card-grid { grid-template-columns: 1fr; }
  .fuel-card { min-height: 340px; }
  .run-summary dl { grid-template-columns: repeat(2, 1fr); gap: 12px 0; }
  .run-summary dl div:nth-child(odd) { padding-left: 0; border-left: 0; }
  .prediction-metrics { grid-template-columns: 1fr 1fr; }
  .race-nutrition { grid-template-columns: 1fr; }
  .training-chart-card, .model-card { padding: 18px; }
  .pace-equation { grid-template-columns: 1fr; gap: 12px; }
  .pace-equation p, .pace-equation small { text-align: left; }
  .pace-list-heading { display: none; }
  .pace-activity-row { grid-template-columns: 1fr; gap: 14px; }
  .pace-activity-row dl { grid-template-columns: repeat(2, 1fr); gap: 12px 0; }
  .pace-activity-row dl div:nth-child(odd) { padding-left: 0; border-left: 0; }
  .pace-activity-row dt { display: block; }
  .pace-activity-row dd { margin-top: 4px; }
  .tools-app-shell .tt-sidebar { padding: 9px; }
  .tools-app-shell .tt-athlete-card, .tools-app-shell .tt-disconnect-button { display: none; }
  .blueprint-hero-action { justify-self: start; }
  .blueprint-list-card { grid-template-columns: 72px minmax(0, 1fr); }
  .blueprint-list-arrow { grid-column: 1 / -1; min-height: 42px; }
  .blueprint-list-main { padding: 16px; }
  .blueprint-list-main h2 { white-space: normal; }
  .blueprint-list-main dl { grid-template-columns: repeat(2, 1fr); gap: 13px 0; }
  .blueprint-list-main dl div:nth-child(odd) { padding-left: 0; border-left: 0; }
  .blueprint-form-grid, .rehearsal-detail-grid, .rehearsal-run-snapshot { grid-template-columns: 1fr; }
  .blueprint-field--wide { grid-column: auto; }
  .blueprint-form-actions { align-items: stretch; flex-direction: column; }
  .blueprint-form-actions .tools-button { width: 100%; }
  .blueprint-page-actions { align-items: flex-start; flex-direction: column; }
  .race-card-hero { padding: 28px 20px; }
  .race-card-hero dl { grid-template-columns: 1fr 1fr; }
  .blueprint-section-heading { align-items: flex-start; flex-direction: column; }
  .blueprint-pace-grid { grid-template-columns: 1fr; }
  .blueprint-pace-grid article { border-top: 1px solid var(--tools-dark); border-left: 0; }
  .blueprint-pace-grid article:first-child { border-top: 0; }
  .blueprint-pace-grid article:nth-child(4) { border-left: 0; }
  .blueprint-pace-grid strong { margin-bottom: 12px; }
  .packing-list, .rehearsal-question-grid { grid-template-columns: 1fr; }
  .rehearsal-list header { flex-direction: column; }
  .rehearsal-list dl { grid-template-columns: repeat(2, 1fr); }
  .rehearsal-list dl div:nth-child(odd) { padding-left: 0; border-left: 0; }
  .rehearsal-run-snapshot dl { grid-template-columns: 1fr; gap: 12px; }
  .rehearsal-run-snapshot dl div { padding: 0; border: 0; }
}