:root {
  --bg: #eef7ff;
  --bg-accent: #dcefff;
  --surface: rgba(248, 252, 255, 0.88);
  --surface-strong: #fafdff;
  --surface-deep: #17567f;
  --text: #143347;
  --muted: #55748a;
  --line: rgba(20, 51, 71, 0.12);
  --primary: #2a8fd3;
  --primary-soft: #d8efff;
  --secondary: #73c2fb;
  --secondary-soft: #e3f4ff;
  --highlight: #b7e2ff;
  --danger: #b44a3f;
  --success: #2f7fa4;
  --shadow: 0 18px 45px rgba(42, 143, 211, 0.14);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --font-body: "Avenir Next", "Segoe UI", "Helvetica Neue", sans-serif;
  --font-display: "Iowan Old Style", "Georgia", serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(115, 194, 251, 0.3), transparent 28%),
    radial-gradient(circle at right 10%, rgba(42, 143, 211, 0.16), transparent 24%),
    linear-gradient(180deg, #f5fbff 0%, var(--bg) 55%, #dcefff 100%);
  min-height: 100vh;
}

button,
input,
select,
textarea {
  font: inherit;
}

button,
select,
input,
textarea {
  border-radius: var(--radius-sm);
}

.page-shell {
  width: min(1240px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 56px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.65fr) minmax(260px, 0.9fr);
  gap: 22px;
  align-items: stretch;
  margin-bottom: 24px;
}

.hero__content,
.hero__panel,
.card,
.weight-card,
.day-card,
.stat,
.plan-card,
.macro {
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.hero__content {
  position: relative;
  overflow: hidden;
  padding: 34px;
  border-radius: var(--radius-xl);
  background:
    linear-gradient(140deg, rgba(23, 86, 127, 0.97), rgba(42, 143, 211, 0.9)),
    linear-gradient(135deg, rgba(183, 226, 255, 0.24), transparent 48%);
  color: #f5fbff;
  box-shadow: var(--shadow);
}

.hero__content::after {
  content: "";
  position: absolute;
  width: 240px;
  height: 240px;
  right: -78px;
  bottom: -78px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(183, 226, 255, 0.34), transparent 70%);
}

.hero__panel {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 28px;
  border-radius: var(--radius-xl);
  background: rgba(247, 252, 255, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.58);
  box-shadow: var(--shadow);
}

.eyebrow,
.section-kicker,
.plan-card__eyebrow,
.panel__label,
.weight-card__label,
.stat__label,
.macro__label,
.adjuster__label,
.day-card__day {
  margin: 0;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 0.74rem;
}

.eyebrow,
.panel__label {
  color: rgba(245, 251, 255, 0.8);
}

.hero h1,
.section-heading h2,
.day-card__date,
.plan-card h3 {
  margin: 0;
  font-family: var(--font-display);
}

.hero h1 {
  font-size: clamp(3rem, 7vw, 5.4rem);
  line-height: 0.95;
  margin-top: 12px;
}

.hero__lede {
  width: min(600px, 100%);
  margin: 18px 0 0;
  font-size: 1.05rem;
  line-height: 1.6;
  color: rgba(245, 251, 255, 0.88);
}

.hero__highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.hero__highlights span,
.status-chip,
.day-card__badge {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: inherit;
  font-size: 0.9rem;
}

.panel__value {
  margin-top: 16px;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1;
  font-weight: 700;
  color: var(--primary);
}

.panel__copy {
  color: var(--muted);
  line-height: 1.6;
}

.layout {
  display: grid;
  gap: 22px;
}

.card,
.weight-card,
.day-card,
.plan-card,
.stat,
.macro {
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.65);
  box-shadow: var(--shadow);
}

.card {
  padding: 28px;
  border-radius: var(--radius-xl);
}

.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 20px;
  margin-bottom: 22px;
}

.section-heading h2 {
  font-size: clamp(1.8rem, 3.2vw, 2.5rem);
  line-height: 1.02;
  color: var(--primary);
  margin-top: 6px;
}

.section-copy {
  max-width: 500px;
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.profile-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.profile-grid label,
.day-card label {
  display: grid;
  gap: 8px;
}

.profile-grid span,
.day-card span {
  font-size: 0.9rem;
  color: var(--muted);
}

.profile-grid input,
.profile-grid select,
.day-card input,
.day-card textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.78);
  padding: 14px 16px;
  color: var(--text);
  transition: border-color 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.profile-grid input:focus,
.profile-grid select:focus,
.day-card input:focus,
.day-card textarea:focus {
  outline: none;
  border-color: rgba(115, 194, 251, 0.58);
  box-shadow: 0 0 0 4px rgba(115, 194, 251, 0.18);
}

.form-actions {
  grid-column: 1 / -1;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding-top: 8px;
}

.helper-text,
.empty-state {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.button {
  border: 0;
  background: linear-gradient(135deg, var(--secondary), #4aa7ea);
  color: #08304a;
  padding: 12px 18px;
  cursor: pointer;
  font-weight: 600;
  transition: transform 180ms ease, filter 180ms ease, background 180ms ease;
}

.button:hover,
.stepper__button:hover {
  transform: translateY(-1px);
  filter: brightness(1.02);
}

.button:disabled,
.stepper__button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
  filter: none;
}

.button:active,
.stepper__button:active {
  transform: translateY(0);
}

.button--ghost {
  background: rgba(42, 143, 211, 0.1);
  color: var(--primary);
}

.stats-grid,
.plans-grid,
.macro-grid {
  display: grid;
  gap: 16px;
}

.stats-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.stat,
.macro {
  padding: 20px;
  border-radius: var(--radius-lg);
}

.stat__value,
.macro__value,
.adjuster__value {
  margin: 8px 0 4px;
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  line-height: 1;
  font-weight: 700;
  color: var(--primary);
}

.stat__meta,
.plan-card__description,
.weight-card__copy {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.insight-strip,
.week-summary {
  margin-top: 18px;
  padding: 16px 18px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(183, 226, 255, 0.38), rgba(255, 255, 255, 0.48));
  border: 1px solid rgba(115, 194, 251, 0.34);
  color: var(--text);
  line-height: 1.6;
}

.plans-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.plan-card {
  display: grid;
  gap: 18px;
  padding: 22px;
  border-radius: var(--radius-lg);
  transform: translateY(16px);
  opacity: 0;
  animation: fadeUp 0.55s ease forwards;
}

.plan-card:nth-child(2) {
  animation-delay: 90ms;
}

.plan-card:nth-child(3) {
  animation-delay: 180ms;
}

.plan-card--selected {
  background:
    linear-gradient(180deg, rgba(42, 143, 211, 0.09), rgba(255, 255, 255, 0.76)),
    var(--surface);
  border-color: rgba(42, 143, 211, 0.24);
}

.plan-card__header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

.plan-card h3 {
  font-size: 1.45rem;
  margin-top: 8px;
  color: var(--primary);
}

.plan-card__metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.plan-card__metrics div {
  padding: 14px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.58);
  border: 1px solid rgba(23, 51, 47, 0.08);
}

.plan-card__metrics span {
  display: block;
  font-size: 0.84rem;
  color: var(--muted);
}

.plan-card__metrics strong {
  display: block;
  margin-top: 8px;
  font-size: 1.1rem;
  color: var(--primary);
}

.active-plan-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 18px;
}

.plan-summary {
  padding: 24px;
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, rgba(42, 143, 211, 0.1), rgba(255, 255, 255, 0.58));
  border: 1px solid rgba(42, 143, 211, 0.12);
}

.plan-summary__headline {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.plan-summary__headline h3 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: var(--primary);
}

.plan-summary__body {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 20px;
}

.plan-summary__body article {
  padding: 16px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.56);
}

.plan-summary__body p {
  margin: 0;
}

.plan-summary__body strong {
  display: block;
  margin-top: 10px;
  font-size: 1.2rem;
  color: var(--primary);
}

.plan-summary__warnings {
  margin-top: 18px;
  display: grid;
  gap: 10px;
}

.warning {
  padding: 12px 14px;
  border-radius: var(--radius-md);
  background: rgba(180, 74, 63, 0.1);
  border: 1px solid rgba(180, 74, 63, 0.16);
  color: #7d362e;
}

.adjuster-panel {
  display: grid;
  gap: 14px;
}

.adjuster {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 18px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.58);
  border: 1px solid rgba(23, 51, 47, 0.08);
}

.stepper {
  display: flex;
  gap: 10px;
}

.stepper__button {
  width: 48px;
  height: 48px;
  border: 0;
  cursor: pointer;
  color: var(--primary);
  background: rgba(42, 143, 211, 0.12);
  font-size: 1.3rem;
}

.macro-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.macro {
  position: relative;
  overflow: hidden;
}

.macro::after {
  content: "";
  position: absolute;
  inset: auto -20px -30px auto;
  width: 100px;
  height: 100px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(115, 194, 251, 0.26), transparent 70%);
}

.tracking-toolbar,
.week-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
}

.week-nav__title {
  font-weight: 700;
  color: var(--primary);
  text-align: center;
}

.status-chip {
  background: rgba(42, 143, 211, 0.1);
  border-color: rgba(42, 143, 211, 0.16);
  color: var(--primary);
}

.weight-card {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  align-items: center;
  gap: 18px;
  margin-top: 18px;
  padding: 18px;
  border-radius: var(--radius-lg);
}

.chart {
  min-height: 120px;
}

.chart svg {
  width: 100%;
  height: 140px;
  overflow: visible;
}

.tracking-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.day-card {
  padding: 20px;
  border-radius: var(--radius-lg);
}

.day-card__header {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 16px;
  margin-bottom: 18px;
}

.day-card__date {
  margin-top: 8px;
  color: var(--primary);
  font-size: 1.4rem;
}

.day-card__badge {
  background: rgba(115, 194, 251, 0.18);
  border-color: rgba(115, 194, 251, 0.38);
  color: #155b8b;
}

.day-card__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.day-card__notes {
  display: grid;
  gap: 8px;
  margin-top: 14px;
}

.muted {
  color: var(--muted);
}

.positive {
  color: var(--success);
}

.negative {
  color: var(--danger);
}

.chart-empty {
  display: grid;
  place-items: center;
  min-height: 120px;
  color: var(--muted);
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1100px) {
  .hero,
  .active-plan-grid,
  .weight-card {
    grid-template-columns: 1fr;
  }

  .profile-grid,
  .stats-grid,
  .macro-grid,
  .plans-grid,
  .tracking-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .page-shell {
    width: min(100% - 20px, 100%);
    padding-top: 18px;
  }

  .card,
  .hero__content,
  .hero__panel {
    padding: 22px;
  }

  .section-heading,
  .tracking-toolbar,
  .week-nav,
  .form-actions,
  .plan-card__header,
  .plan-summary__headline,
  .adjuster {
    flex-direction: column;
    align-items: stretch;
  }

  .profile-grid,
  .stats-grid,
  .macro-grid,
  .plans-grid,
  .tracking-list,
  .day-card__grid,
  .plan-summary__body,
  .plan-card__metrics {
    grid-template-columns: 1fr;
  }

  .button,
  .button--ghost,
  .stepper__button {
    width: 100%;
  }

  .stepper {
    width: 100%;
  }
}