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

html,
body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  background: radial-gradient(circle at top right, var(--brand-soft) 0%, transparent 38%), var(--bg);
  color: var(--text-primary);
  font-family: "IBM Plex Sans", "Avenir Next", "Segoe UI", sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
  text-decoration: none;
}

.app-shell {
  padding-bottom: 3rem;
}

.ui-container {
  width: min(100% - 2rem, 72rem);
  margin-inline: auto;
}

.navbar {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(10px);
  background: color-mix(in oklab, var(--bg) 88%, transparent);
  border-bottom: 1px solid var(--surface-border);
}

.navbar__inner {
  min-height: 4rem;
  padding: 0.7rem 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.85rem;
}

.navbar__brand {
  font-weight: 700;
  letter-spacing: -0.02em;
}

.navbar__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.navbar__actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.navbar__locales {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.navbar__locale {
  border: 1px solid var(--surface-border);
  border-radius: 999px;
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.22rem 0.5rem;
  transition: background-color 120ms ease, color 120ms ease;
}

.navbar__locale:hover,
.navbar__locale:focus-visible {
  color: var(--text-primary);
}

.navbar__locale--active {
  background: var(--bg-muted);
  color: var(--text-primary);
}

.navbar__link:hover,
.navbar__link:focus-visible {
  color: var(--text-primary);
}

.theme-toggle {
  border: 1px solid var(--surface-border);
  background: var(--bg-elevated);
  color: var(--text-primary);
  border-radius: 999px;
  padding: 0.4rem 0.75rem;
  font: inherit;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  cursor: pointer;
}

.theme-toggle__icon {
  font-size: 0.9rem;
}

.ui-button {
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 120ms ease, box-shadow 120ms ease, background-color 120ms ease;
}

.ui-button:focus-visible,
.theme-toggle:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
}

.ui-button:hover {
  transform: translateY(-1px);
}

.ui-button--sm {
  padding: 0.42rem 0.82rem;
  font-size: 0.84rem;
}

.ui-button--md {
  padding: 0.56rem 1rem;
  font-size: 0.92rem;
}

.ui-button--lg {
  padding: 0.74rem 1.2rem;
  font-size: 0.98rem;
}

.ui-button--primary {
  background: var(--brand);
  color: var(--text-inverse);
  box-shadow: var(--shadow-sm);
}

.ui-button--primary:hover {
  background: var(--brand-strong);
}

.ui-button--secondary {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border-color: var(--surface-border);
}

.ui-button--ghost {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--surface-border);
}

.flash {
  margin: 0 0 0.8rem;
  padding: 0.65rem 0.8rem;
  border: 1px solid var(--surface-border);
  border-radius: 0.75rem;
  font-size: 0.9rem;
}

.flash--alert {
  background: color-mix(in oklab, #e11d48 12%, var(--bg-elevated));
}

.flash--notice {
  background: color-mix(in oklab, #16a34a 10%, var(--bg-elevated));
}

.auth-page {
  padding: 2rem 0;
}

.auth-page__container {
  width: min(100% - 2rem, 28rem);
}

.auth-card {
  background: var(--bg-elevated);
  border: 1px solid var(--surface-border);
  border-radius: 1rem;
  box-shadow: var(--shadow-sm);
  padding: 1rem;
}

.auth-card__title {
  margin: 0 0 0.9rem;
  font-size: 1.4rem;
  letter-spacing: -0.02em;
}

.auth-form {
  display: grid;
  gap: 0.75rem;
}

.auth-field {
  display: block;
}

.auth-input {
  width: 100%;
  border: 1px solid var(--surface-border);
  background: var(--bg);
  color: var(--text-primary);
  border-radius: 0.75rem;
  padding: 0.65rem 0.75rem;
  font: inherit;
}

.auth-input::placeholder {
  color: var(--text-secondary);
}

.auth-input:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 1px;
}

.auth-actions {
  margin-top: 0.1rem;
}

.auth-actions .ui-button {
  width: 100%;
}

.auth-links {
  margin-top: 0.7rem;
}

.meal-page {
  padding: 2rem 0;
}

.meal-page__container {
  display: grid;
  gap: 1rem;
}

.meal-page__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.meal-page__actions {
  margin-top: 0.8rem;
}

.meal-day-group {
  display: grid;
  gap: 0.75rem;
}

.meal-day-group__title {
  margin: 0.2rem 0 0;
  color: var(--text-secondary);
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}

.meal-card {
  background: var(--bg-elevated);
  border: 1px solid var(--surface-border);
  border-radius: 1rem;
  box-shadow: var(--shadow-sm);
  padding: 1rem;
}

.meal-card__title {
  margin: 0;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.meal-entry__meta {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.meal-entry__note {
  margin: 0.55rem 0 0;
}

.meal-entry__photos {
  margin-top: 0.7rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.meal-entry__photo {
  width: 5.25rem;
  height: 5.25rem;
  object-fit: cover;
  border-radius: 0.7rem;
  border: 1px solid var(--surface-border);
}

.meal-entry__actions {
  margin-top: 0.7rem;
}

.meal-form {
  display: grid;
  gap: 0.8rem;
}

.meal-form__field {
  display: grid;
  gap: 0.35rem;
}

.meal-form__label {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.meal-form__input {
  width: 100%;
  border: 1px solid var(--surface-border);
  background: var(--bg);
  color: var(--text-primary);
  border-radius: 0.75rem;
  padding: 0.65rem 0.75rem;
  font: inherit;
}

.meal-form__actions .ui-button {
  width: 100%;
}

.hero {
  padding: 3.5rem 0 2.2rem;
}

.hero__inner {
  max-width: 48rem;
  animation: reveal-up 360ms ease both;
}

.hero__eyebrow,
.feature-card__eyebrow,
.report-preview__eyebrow {
  margin: 0;
  color: var(--brand);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.hero__title {
  margin: 0.75rem 0 0;
  font-size: clamp(2rem, 6vw, 3.3rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.hero__description {
  margin: 1rem 0 0;
  color: var(--text-secondary);
  max-width: 42rem;
}

.hero__actions {
  margin-top: 1.35rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.section {
  padding: 2rem 0;
  animation: reveal-up 420ms ease both;
}

.section:nth-of-type(2) {
  animation-delay: 70ms;
}

.section:nth-of-type(3) {
  animation-delay: 110ms;
}

.section:nth-of-type(4) {
  animation-delay: 150ms;
}

.section--muted {
  background: color-mix(in oklab, var(--bg-muted) 62%, transparent);
  border-top: 1px solid var(--surface-border);
  border-bottom: 1px solid var(--surface-border);
}

.section__title {
  margin: 0;
  font-size: clamp(1.45rem, 4.2vw, 2rem);
  letter-spacing: -0.02em;
}

.feature-grid {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
}

.feature-card {
  background: var(--bg-elevated);
  border: 1px solid var(--surface-border);
  border-radius: 1rem;
  padding: 1rem;
  box-shadow: var(--shadow-sm);
}

.feature-card__title {
  margin: 0.25rem 0 0;
  font-size: 1.08rem;
  letter-spacing: -0.01em;
}

.feature-card__description {
  margin: 0.5rem 0 0;
  color: var(--text-secondary);
}

.step-list {
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.8rem;
}

.step-list__item {
  background: var(--bg-elevated);
  border: 1px solid var(--surface-border);
  border-radius: 0.85rem;
  padding: 0.9rem;
}

.step-list__title {
  margin: 0;
  font-weight: 600;
}

.step-list__text {
  margin: 0.3rem 0 0;
  color: var(--text-secondary);
}

.report-preview {
  display: grid;
  gap: 1rem;
  align-items: end;
  background: var(--bg-elevated);
  border: 1px solid var(--surface-border);
  border-radius: 1rem;
  padding: 1rem;
}

.report-preview__text {
  margin: 0.55rem 0 0;
  color: var(--text-secondary);
}

@media (min-width: 40rem) {
  .navbar__inner {
    gap: 1rem;
  }

  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .report-preview {
    grid-template-columns: 1fr auto;
    padding: 1.4rem;
  }

  .auth-page {
    padding: 3.2rem 0;
  }

  .auth-card {
    padding: 1.4rem;
  }
}

@media (min-width: 64rem) {
  .hero {
    padding-top: 4.6rem;
  }

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

  .section {
    padding: 2.6rem 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero__inner,
  .section,
  .ui-button {
    animation: none;
    transition: none;
  }
}

@keyframes reveal-up {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}