:root {
  --bg: #f3f1eb;
  --surface: #ffffff;
  --ink: #141414;
  --muted: #66645f;
  --line: #d9d6ce;
  --accent: #d8ff3e;
  --dark: #111111;
  --radius: 18px;
  --shadow: 0 16px 50px rgba(0, 0, 0, 0.08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
.container { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }
.narrow { width: min(820px, calc(100% - 32px)); }
.site-header { background: var(--dark); color: white; position: sticky; top: 0; z-index: 10; }
.header-row { min-height: 68px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { font-weight: 900; letter-spacing: -0.04em; font-size: 1.3rem; }
nav { display: flex; gap: 18px; font-size: .92rem; }
nav a { color: #c9c9c9; }
nav a:hover { color: white; }
.hero { background: var(--dark); color: white; padding: 80px 0 90px; }
.hero-content { max-width: 950px; }
.hero h1, .page-header h1, .success-card h1 { margin: 0; font-size: clamp(2.5rem, 8vw, 6.5rem); letter-spacing: -0.07em; line-height: .95; }
.hero-copy { color: #b9b9b9; font-size: 1.15rem; max-width: 620px; margin-top: 28px; }
.eyebrow { font-size: .73rem; font-weight: 850; letter-spacing: .14em; text-transform: uppercase; margin: 0 0 10px; color: var(--muted); }
.hero .eyebrow, .page-header .eyebrow { color: var(--accent); }
.section { padding: 72px 0; }
.section-compact { padding-top: 0; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 30px; }
.section-heading h2 { margin: 0; font-size: clamp(1.8rem, 4vw, 3rem); letter-spacing: -0.045em; }
.section-heading p { margin-bottom: 0; color: var(--muted); }
.intro-copy { max-width: 760px; font-size: 1.08rem; margin-bottom: 30px; }
.day-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.day-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); display: grid; grid-template-columns: 95px 1fr; overflow: hidden; min-height: 230px; transition: transform .2s ease, box-shadow .2s ease; }
.day-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.day-card-date { background: var(--accent); padding: 22px; display: flex; flex-direction: column; justify-content: space-between; text-transform: uppercase; }
.day-card-date span { font-size: .75rem; font-weight: 850; }
.day-card-date strong { font-size: 2.8rem; line-height: 1; letter-spacing: -.08em; }
.day-card-body { padding: 24px; display: flex; flex-direction: column; align-items: flex-start; }
.day-card-body h3 { margin: 0 0 10px; font-size: 1.5rem; letter-spacing: -.035em; }
.day-card-body p { color: var(--muted); margin-top: 0; }
.card-meta { margin-top: auto; font-size: .82rem; font-weight: 750; }
.text-link { font-weight: 800; margin-top: 16px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 20px; border-radius: 999px; font-weight: 850; border: 1px solid transparent; cursor: pointer; font-size: .92rem; }
.button-primary { background: var(--accent); color: var(--dark); }
.button-secondary { border-color: var(--dark); }
.button-whatsapp { background: #20c063; color: white; }
.archive-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.archive-card { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 20px; display: grid; gap: 4px; }
.archive-card span { color: var(--muted); font-size: .86rem; }
.page-header { background: var(--dark); color: white; padding: 64px 0 70px; }
.page-header h1 { font-size: clamp(2.6rem, 7vw, 5.6rem); }
.back-link { display: inline-block; color: #c7c7c7; margin-bottom: 38px; }
.lead { font-size: 1.14rem; color: #c9c9c9; max-width: 700px; margin-top: 24px; }
.action-row { margin-top: 28px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.pill { border: 1px solid #555; border-radius: 999px; padding: 11px 17px; font-weight: 750; }
.week-list { display: grid; gap: 12px; }
.week-row { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 18px; display: grid; grid-template-columns: 70px 1fr auto; gap: 18px; align-items: center; }
.week-row:hover { border-color: var(--dark); }
.week-row-date { background: var(--accent); border-radius: 12px; padding: 12px; display: grid; text-transform: uppercase; }
.week-row-date span { font-size: .68rem; font-weight: 850; }
.week-row-date strong { font-size: 1.8rem; line-height: 1; }
.week-row-body p { margin: 0; color: var(--muted); font-size: .78rem; text-transform: uppercase; font-weight: 800; }
.week-row-body h2 { margin: 2px 0; font-size: 1.25rem; }
.week-row-body span { color: var(--muted); font-size: .9rem; }
.week-row-arrow { font-size: 1.5rem; }
.cta-section { background: var(--dark); color: white; padding: 72px 0; }
.cta-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 54px; align-items: start; }
.cta-grid h2 { margin: 0; font-size: clamp(2rem, 5vw, 3.5rem); line-height: 1; letter-spacing: -.055em; }
.cta-grid > div > p:last-child { color: #bdbdbd; }
.interest-form { background: white; color: var(--ink); border-radius: var(--radius); padding: 26px; }
.form-field { display: grid; gap: 7px; margin-bottom: 16px; }
.form-field label { font-weight: 800; font-size: .86rem; }
.form-field input:not([type='checkbox']), .form-field select, .form-field textarea { width: 100%; border: 1px solid var(--line); border-radius: 10px; padding: 12px 13px; font: inherit; background: #fafafa; }
.form-field input:focus, .form-field select:focus, .form-field textarea:focus { outline: 2px solid var(--accent); border-color: var(--dark); }
.checkbox-field { display: grid; grid-template-columns: auto 1fr; align-items: start; gap: 9px; }
.checkbox-field small, .checkbox-field .field-error { grid-column: 2; }
.form-field small { color: var(--muted); }
.field-error { color: #b00020; font-size: .84rem; font-weight: 700; }
.workout-stack { display: grid; gap: 18px; }
.workout-block { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; display: grid; grid-template-columns: 80px 1fr; gap: 18px; }
.workout-block h2 { margin-top: 0; font-size: 1.45rem; }
.workout-block p:last-child { margin-bottom: 0; }
.block-number { margin: 0; font-size: .82rem; font-weight: 900; letter-spacing: .1em; color: var(--muted); }
.workout-main { background: var(--dark); color: white; border-color: var(--dark); }
.workout-main .block-number { color: var(--accent); }
.result-prompt { margin-top: 20px; background: var(--accent); border-radius: var(--radius); padding: 30px; display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.result-prompt h2 { margin: 0; letter-spacing: -.04em; }
.result-prompt .button { background: var(--dark); color: white; }
.archive-list { display: grid; gap: 12px; }
.archive-list-row { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 22px; display: flex; justify-content: space-between; gap: 18px; align-items: center; }
.archive-list-row div { display: grid; }
.archive-list-row span { color: var(--muted); font-size: .9rem; }
.empty-state { background: white; border: 1px dashed #aaa; border-radius: var(--radius); padding: 40px; text-align: center; }
.success-page { min-height: calc(100vh - 150px); display: grid; place-items: center; padding: 60px 0; }
.success-card { background: var(--dark); color: white; border-radius: 24px; padding: clamp(32px, 7vw, 70px); }
.success-card h1 { font-size: clamp(2.5rem, 7vw, 5.3rem); }
.success-card p:not(.eyebrow) { color: #bdbdbd; max-width: 600px; font-size: 1.1rem; }
.messages { padding-top: 16px; }
.message { background: var(--accent); border-radius: 10px; padding: 12px 16px; font-weight: 700; }
.site-footer { background: var(--dark); color: #888; border-top: 1px solid #2b2b2b; }
.footer-row { min-height: 82px; display: flex; justify-content: space-between; align-items: center; gap: 20px; font-size: .85rem; }

@media (max-width: 760px) {
  .header-row { min-height: 60px; }
  nav { gap: 12px; font-size: .82rem; }
  .hero { padding: 58px 0 64px; }
  .section { padding: 48px 0; }
  .section-heading { align-items: start; flex-direction: column; }
  .day-grid, .archive-grid, .cta-grid { grid-template-columns: 1fr; }
  .day-card { grid-template-columns: 76px 1fr; min-height: 215px; }
  .day-card-date { padding: 16px; }
  .day-card-body { padding: 20px; }
  .week-row { grid-template-columns: 58px 1fr auto; gap: 12px; padding: 12px; }
  .week-row-body span { display: none; }
  .workout-block { grid-template-columns: 1fr; gap: 4px; padding: 22px; }
  .result-prompt, .archive-list-row, .footer-row { align-items: flex-start; flex-direction: column; }
  .result-prompt .button, .interest-form .button { width: 100%; }
}