:root {
  --bg: #090b12;
  --card: rgba(255, 255, 255, 0.08);
  --card-strong: rgba(255, 255, 255, 0.13);
  --line: rgba(255, 255, 255, 0.14);
  --text: #f7f8fb;
  --muted: #aeb6c6;
  --accent: #ef233c;
  --accent-2: #ff4d6d;
  --blue: #60a5fa;
  --green: #34d399;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.36);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(239, 35, 60, 0.28), transparent 34rem),
    radial-gradient(circle at bottom right, rgba(96, 165, 250, 0.20), transparent 32rem),
    linear-gradient(135deg, #080a10 0%, #101827 100%);
}

.app-shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 48px;
}

.club-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px;
  margin-bottom: 28px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.brand { display: flex; align-items: center; gap: 16px; }

.brand-mark {
  width: 70px;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain; /* mantiene proporción */
  display: block;
}

.eyebrow {
  margin: 0 0 4px;
  color: #d10a2c;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.16em;
}

h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 0; font-size: clamp(1.8rem, 4vw, 3.4rem); letter-spacing: -0.06em; }
.header-copy { max-width: 420px; margin: 0; color: #A9A9A9; line-height: 1.5; }

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 24px;
}

.calculator-card,
.result-card,
.info-card {
  border: 1px solid var(--line);
  border-radius: 32px;
  background: var(--card);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.calculator-card { padding: 28px; }
.result-card { padding: 32px; display: flex; flex-direction: column; justify-content: center; min-height: 360px; }
.info-card { margin-top: 24px; padding: 22px 26px; }
.info-card p { margin-bottom: 0; color: var(--muted); line-height: 1.6; }

.card-title { display: flex; gap: 14px; margin-bottom: 24px; }
.card-title h2 { margin-bottom: 6px; font-size: 1.4rem; letter-spacing: -0.03em; }
.card-title p { margin-bottom: 0; color: #A9A9A9; line-height: 1.5; }

.step-badge {
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: var(--card-strong);
  color: var(--accent-2);
  font-weight: 800;
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.field { display: grid; gap: 8px; }
.field span { color: #dce3ef; font-weight: 700; font-size: 0.92rem; }

select,
input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 15px 16px;
  background: rgba(8, 10, 16, 0.72);
  color: var(--text);
  font-size: 1.1rem;
  outline: none;
}

select:focus,
input:focus {
  border-color: rgba(239, 35, 60, 0.72);
  box-shadow: 0 0 0 4px rgba(239, 35, 60, 0.14);
}

.primary-button {
  width: 100%;
  margin-top: 20px;
  border: 0;
  border-radius: 20px;
  padding: 16px 18px;
  color: white;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  font: inherit;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 16px 36px rgba(239, 35, 60, 0.28);
  transition: transform .18s ease, filter .18s ease;
}
.primary-button:hover { transform: translateY(-1px); filter: brightness(1.04); }

.result-topline {
  color: var(--muted);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.78rem;
}

.ftp-value {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 12px 0 8px;
  font-size: clamp(8rem, 12vw, 8rem);
  font-weight: 800;
  letter-spacing: -0.08em;
  line-height: 0.9;
}
.ftp-value small { font-size: 1.8rem; color: #d10a2c; letter-spacing: -0.02em; }
.result-detail { color: #e6ecf7; font-weight: 700; }
.note { margin: 18px 0 0; color: var(--muted); line-height: 1.5; }

.zone-preview {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 7px;
}
.zone-preview span { height: 12px; border-radius: 999px; }
.zone-preview span:nth-child(1) { background: #8c8f94; }
.zone-preview span:nth-child(2) { background: #19b9ea; }
.zone-preview span:nth-child(3) { background: #17c964; }
.zone-preview span:nth-child(4) { background: #f4a62a; }
.zone-preview span:nth-child(5) { background: #ef1b1b; }

@media (max-width: 820px) {
  .club-header, .hero-grid { grid-template-columns: 1fr; }
  .club-header { align-items: flex-start; flex-direction: column; }
  .field-grid { grid-template-columns: 1fr; }
  .result-card { min-height: 280px; }
}

.metrics-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.metric-box {
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 18px 20px;
  background: rgba(255, 255, 255, 0.055);
}

.metric-label {
  color: #A9A9A9;
  font-size: 1.20rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hr-value {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 12px 0 8px;
  font-size: clamp(8rem, 12vw, 8rem);
  font-weight: 800;
  letter-spacing: -0.08em;
  line-height: 0.9;
}

.hr-value small {
  font-size: 1.8rem;
  color: var(--accent-2);
  letter-spacing: -0.02em;
}

.zones-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.zones-card {
  border: 1px solid var(--line);
  border-radius: 32px;
  padding: 28px;
  background: rgba(0, 0, 0, 0.62);
  box-shadow: var(--shadow);
}

.zones-card h2 {
  color: #A9A9A9;
  margin-bottom: 24px;
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-align: center;
}

.zones-header,
.zones-icons,
.zone-row {
  display: grid;
  grid-template-columns: 82px 100px 1fr;
  align-items: center;
  column-gap: 16px;
}

.zones-header {
  margin-bottom: 4px;
  color: #dce3ef;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.zones-icons {
  margin-bottom: 8px;
  color: #ffffff;
  font-size: 1.55rem;
  font-weight: 900;
  line-height: 1;
}

.zones-icons span:nth-child(2) {
  text-align: center;
}

.zones-list {
  display: grid;
  gap: 6px;
}

.zone-row {
  min-height: 28px;
  font-weight: 600;
}

.zone-name {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
}

.zone-dot {
  width: 14px;
  height: 14px;
  border-radius: 999px;
  display: inline-block;
}

.zone-percent {
  font-size: 1.02rem;
  color: #ffffff;
}

.zone-range {
  color: #ffffff;
  font-size: 0.9rem;
}

.zone-range strong {
  color: #ffffff;
}

.zone-z1 { background: #8c8f94; }
.zone-z2 { background: #19b9ea; }
.zone-z3 { background: #17c964; }
.zone-z4 { background: #f4a62a; }
.zone-z5 { background: #ef1b1b; }

@media (max-width: 920px) {
  .zones-grid { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  .zones-card { padding: 22px; }
  .zones-header,
  .zones-icons,
  .zone-row {
    grid-template-columns: 70px 92px 1fr;
    column-gap: 10px;
  }
  .zone-name { font-size: 0.9rem; gap: 9px; }
  .zone-percent { font-size: 0.9rem; }
  .zone-range { font-size: 0.8rem; }
}

/* Layout update: user information full width, result metrics symmetric below */
.hero-grid {
  grid-template-columns: 1fr;
}

.calculator-card {
  width: 100%;
}

.result-card {
  width: 100%;
  min-height: auto;
  padding: 28px;
}

.metrics-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.metric-box {
  min-height: 188px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.ftp-value,
.hr-value {
  justify-content: center;
  margin: 14px 0 0;
}

.metric-label {
  text-align: center;
}

.result-topline,
.result-detail {
  text-align: center;
}

.result-detail {
  margin-bottom: 20px;
}

@media (max-width: 820px) {
  .metrics-grid {
    grid-template-columns: 1fr;
  }
}


/* FC size matched to FTP */
.hr-value,.fc-value{font-size:7rem!important;font-weight:800;line-height:.9;}
.hr-unit,.fc-unit{font-size:1.1rem!important;font-weight:700;}

/* Zones blocks: same visual system as the other cards + better alignment */
.zones-grid {
  align-items: stretch;
}

.zones-card {
  background: var(--card);
  backdrop-filter: blur(18px);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  padding: 28px 32px 30px;
  min-width: 0;
}

.zones-card h2 {
  margin-bottom: 22px;
  font-size: 1.20rem;
  line-height: 1.1;
  letter-spacing: 0.02em;
}

.zones-header,
.zones-icons,
.zone-row {
  grid-template-columns: minmax(76px, 0.9fr) minmax(104px, 1fr) minmax(138px, 1.35fr);
  column-gap: clamp(12px, 2vw, 24px);
  width: 100%;
}

.zones-header {
  font-size: clamp(0.68rem, 0.9vw, 0.76rem);
  line-height: 1.1;
}

.zones-icons {
  font-size: clamp(1.15rem, 1.8vw, 1.45rem);
  margin-bottom: 10px;
}

.zone-row {
  min-height: 34px;
}

.zone-name {
  gap: 10px;
  font-size: clamp(0.9rem, 2vw, 1.2rem);
  line-height: 1;
  white-space: nowrap;
}

.zone-dot {
  width: 14px;
  height: 14px;
  flex: 0 0 auto;
}

.zone-percent,
.zone-range {
  font-size: clamp(0.86rem, 1.25vw, 1rem);
  line-height: 1.15;
  white-space: nowrap;
}

.zone-percent {
  text-align: left;
}

.zone-range {
  text-align: left;
  font-weight: 600;
}

@media (max-width: 1120px) {
  .zones-card {
    padding: 26px 28px;
  }

  .zones-header,
  .zones-icons,
  .zone-row {
    grid-template-columns: 74px 104px minmax(120px, 1fr);
    column-gap: 14px;
  }

  .zone-name {
    font-size: 0.9rem;
  }

  .zone-percent,
  .zone-range {
    font-size: 0.9rem;
  }
}

@media (max-width: 920px) {
  .zones-header,
  .zones-icons,
  .zone-row {
    grid-template-columns: minmax(76px, 0.9fr) minmax(110px, 1fr) minmax(140px, 1.35fr);
  }
}

@media (max-width: 520px) {
  .zones-card {
    padding: 22px 20px;
    border-radius: 26px;
  }

  .zones-header,
  .zones-icons,
  .zone-row {
    grid-template-columns: 64px 88px minmax(96px, 1fr);
    column-gap: 8px;
  }

  .zone-name {
    gap: 8px;
    font-size: 0.9rem;
  }

  .zone-dot {
    width: 11px;
    height: 11px;
  }

  .zone-percent,
  .zone-range {
    font-size: 0.9rem;
  }
}


/* justified zone columns */
.zones-header,
.zones-icons,
.zone-row{
  grid-template-columns: 1.2fr 1fr 1fr !important;
  width:100%;
}
.zones-header > *:nth-child(1),
.zones-icons > *:nth-child(1),
.zone-name{justify-self:start;}
.zones-header > *:nth-child(2),
.zones-icons > *:nth-child(2),
.zone-percent{text-align:center;justify-self:center;}
.zones-header > *:nth-child(3),
.zones-icons > *:nth-child(3),
.zone-range{text-align:right;justify-self:end;}

.disclaimer-overlay{
    position:fixed;
    inset:0;
    z-index:9999;

    display:flex;
    align-items:center;
    justify-content:center;

    background:rgba(0,0,0,.50);
    backdrop-filter:blur(4px);
}

.disclaimer-modal{
    width:min(700px,90vw);

    background:linear-gradient(
        135deg,
        rgba(33,38,52,.95),
        rgba(23,27,39,.98)
    );

    border:1px solid rgba(255,255,255,.08);
    border-radius:28px;

    padding:40px;
    
    display:flex;
    flex-direction:column;
    align-items:center;

    box-shadow:
      0 30px 80px rgba(0,0,0,.45);
}

.disclaimer-modal h2{
    text-align:center;
    margin-bottom:24px;
    letter-spacing:.08em;
}

.disclaimer-modal p{
    color:#A9A9A9;
    line-height:1.7;
    margin-bottom:16px;
    justify-content: center;
}

.disclaimer-modal button{
    width:40%;
    margin-top:20px;
    padding:16px;

    border:none;
    border-radius:14px;

    background:#d10a2c;
    color:white;

    font-weight:900;
    cursor:pointer;

    text-align:center;
    font-size: 1.2rem;
}

.section-icon {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #f3f4f6;
  flex-shrink: 0;
}