:root {
  color-scheme: light;
  --bg: #f6f6f4;
  --surface: #ffffff;
  --surface-soft: #f2f2f0;
  --surface-subtle: #fafafa;
  --text: #111111;
  --muted: #62625f;
  --faint: #8c8c88;
  --line: #deded9;
  --line-strong: #c9c9c3;
  --accent: #e85d2a;
  --accent-soft: #fff1eb;
  --shadow: 0 1px 2px rgba(17, 17, 17, 0.04), 0 12px 28px rgba(17, 17, 17, 0.05);
  --shadow-soft: 0 1px 2px rgba(17, 17, 17, 0.04);
  --radius-xl: 20px;
  --radius-lg: 18px;
  --radius-md: 16px;
  --content-width: 1220px;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #111110;
  --surface: #181817;
  --surface-soft: #20201f;
  --surface-subtle: #151514;
  --text: #f4f4f1;
  --muted: #aaa9a4;
  --faint: #77766f;
  --line: #2f2f2b;
  --line-strong: #43433e;
  --accent: #ff7647;
  --accent-soft: #2b1c16;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.18), 0 16px 34px rgba(0, 0, 0, 0.22);
  --shadow-soft: 0 1px 2px rgba(0, 0, 0, 0.18);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--bg);
}

body {
  min-height: 100%;
  margin: 0;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Segoe UI", sans-serif;
  line-height: 1.55;
  transition: background-color 0.2s ease, color 0.2s ease;
}

button,
input,
select {
  font: inherit;
}

button,
select,
input {
  -webkit-tap-highlight-color: transparent;
}

h1,
h2,
h3,
p {
  margin: 0;
}

.icon-sprite {
  display: none;
}

svg {
  display: block;
  width: 1em;
  height: 1em;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.app-shell {
  width: min(var(--content-width), calc(100% - 48px));
  margin: 0 auto;
  padding: 24px 0 72px;
}

.app-nav {
  position: sticky;
  top: 12px;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: min(var(--content-width), 100%);
  margin: 0 auto 72px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: color-mix(in srgb, var(--surface) 94%, transparent);
  box-shadow: var(--shadow-soft);
}

.brand-lockup,
.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.brand-lockup {
  padding: 5px 12px 5px 5px;
  color: var(--text);
  font-size: 0.94rem;
  font-weight: 650;
}

.app-icon,
.section-icon {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid var(--line);
  background: var(--surface-soft);
  color: var(--accent);
}

.app-icon {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  font-size: 1rem;
}

.theme-toggle,
.ghost-button {
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.18s ease, background-color 0.18s ease, transform 0.18s ease;
}

.theme-toggle {
  padding: 0 14px;
}

.ghost-button {
  padding: 0 16px;
}

.theme-toggle:hover,
.ghost-button:hover {
  border-color: var(--line-strong);
  background: var(--surface-soft);
}

.theme-toggle:active,
.ghost-button:active {
  transform: translateY(1px);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 360px);
  gap: 56px;
  align-items: end;
  margin-bottom: 56px;
}

.eyebrow {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  max-width: 760px;
  font-size: clamp(5rem, 12vw, 9.5rem);
  font-weight: 700;
  line-height: 0.88;
  letter-spacing: -0.07em;
}

.hero-tagline {
  max-width: 760px;
  margin-top: 24px;
  color: var(--text);
  font-size: clamp(1.65rem, 3vw, 2.75rem);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.045em;
}

.hero-copy {
  max-width: 720px;
  margin-top: 18px;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.8vw, 1.28rem);
  line-height: 1.55;
}

h2 {
  font-size: clamp(1.55rem, 2vw, 2.1rem);
  font-weight: 650;
  line-height: 1.1;
  letter-spacing: -0.035em;
}

h3 {
  font-size: 1.05rem;
  font-weight: 650;
  letter-spacing: -0.015em;
}

.hero-card,
.panel,
.control-card,
.flour-mix-card,
.dough-analysis-card,
.dough-lab-card,
.insight-card,
.ingredient-card,
.flour-recommendation-card,
.flour-profile-card,
.stat {
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
  transition: border-color 0.18s ease, background-color 0.18s ease, box-shadow 0.18s ease;
}

.hero-card {
  min-height: 220px;
  padding: 32px;
  border-radius: var(--radius-xl);
}

.hero-label,
.ingredient-card span,
.insight-card span,
.dough-analysis-card span,
.flour-recommendation-card span,
.flour-profile-card span,
.stat span {
  display: block;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.hero-card strong {
  display: block;
  margin: 14px 0 10px;
  color: var(--text);
  font-size: clamp(3.6rem, 7vw, 5.8rem);
  font-weight: 650;
  line-height: 0.9;
  letter-spacing: -0.065em;
}

.hero-card span:last-child {
  color: var(--muted);
  font-size: 0.95rem;
}

.calculator-grid,
.details-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: start;
}

.details-grid,
.recipe-workflow-panel {
  margin-top: 32px;
}

.panel {
  border-radius: var(--radius-xl);
  padding: 32px;
}

.panel:hover,
.hero-card:hover {
  border-color: var(--line-strong);
  box-shadow: var(--shadow);
}

.panel-header {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 16px;
  align-items: start;
  margin-bottom: 28px;
}

.panel-header p {
  max-width: 720px;
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.98rem;
}

.section-icon {
  width: 42px;
  height: 42px;
  border-radius: 13px;
  font-size: 1.06rem;
}

.controls-panel {
  display: grid;
  gap: 18px;
}

.control-card,
.flour-mix-card {
  padding: 24px;
  border-radius: var(--radius-lg);
}

.control-card:hover,
.flour-mix-card:hover,
.ingredient-card:hover,
.insight-card:hover,
.dough-lab-card:hover,
.flour-recommendation-card:hover,
.flour-profile-card:hover,
.stat:hover,
.recipe-step:hover,
.timeline li:hover {
  border-color: var(--line-strong);
}

.control-heading {
  display: flex;
  gap: 16px;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 18px;
}

.control-heading label,
.select-field span,
.flour-mix-row label {
  color: var(--text);
  font-size: 0.96rem;
  font-weight: 600;
}

.flour-mix-card p {
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.92rem;
}

output {
  min-width: fit-content;
  border-radius: 999px;
  padding: 5px 10px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 650;
}

input[type="range"] {
  width: 100%;
  height: 34px;
  margin: 0;
  background: transparent;
  cursor: pointer;
  appearance: none;
}

input[type="range"]::-webkit-slider-runnable-track {
  height: 8px;
  border-radius: 999px;
  background:
    linear-gradient(90deg, var(--accent), var(--accent)),
    var(--surface-soft);
  background-size: var(--range-progress, 50%) 100%, 100% 100%;
  background-repeat: no-repeat;
}

input[type="range"]::-webkit-slider-thumb {
  width: 24px;
  height: 24px;
  margin-top: -8px;
  border: 3px solid var(--surface);
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 1px 3px rgba(17, 17, 17, 0.18);
  appearance: none;
  transition: transform 0.16s ease;
}

input[type="range"]:active::-webkit-slider-thumb {
  transform: scale(1.06);
}

input[type="range"]::-moz-range-track {
  height: 8px;
  border-radius: 999px;
  background: var(--surface-soft);
}

input[type="range"]::-moz-range-progress {
  height: 8px;
  border-radius: 999px;
  background: var(--accent);
}

input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border: 3px solid var(--surface);
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 1px 3px rgba(17, 17, 17, 0.18);
}

select,
input[type="number"] {
  width: 100%;
  min-height: 48px;
  border: 1px solid var(--line);
  border-radius: 13px;
  padding: 11px 13px;
  background: var(--surface-subtle);
  color: var(--text);
  font-weight: 520;
  outline: none;
  transition: border-color 0.18s ease, background-color 0.18s ease, box-shadow 0.18s ease;
}

select:focus,
input[type="number"]:focus,
.ghost-button:focus-visible,
.theme-toggle:focus-visible,
input[type="range"]:focus-visible {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 18%, transparent);
}

.flour-mix-list {
  display: grid;
  gap: 12px;
}

.flour-mix-row {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr) 100px;
  gap: 12px;
  align-items: center;
}

.percent-field {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 30px;
  align-items: center;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: var(--surface-subtle);
}

.percent-field input {
  min-height: 46px;
  border: 0;
  border-radius: 0;
  background: transparent;
  text-align: right;
}

.percent-field span {
  color: var(--muted);
  font-weight: 650;
}

.mix-message {
  margin-top: 16px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 550;
}

.mix-message.is-warning {
  color: var(--accent);
}

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

.ingredient-card,
.insight-card {
  min-width: 0;
  padding: 28px;
  border-radius: var(--radius-lg);
  background: var(--surface);
}

.ingredient-card strong {
  display: block;
  margin-top: 10px;
  color: var(--text);
  font-size: clamp(2.25rem, 4vw, 3.7rem);
  font-weight: 650;
  line-height: 0.96;
  letter-spacing: -0.06em;
}

.ingredient-card small,
.insight-card p,
.timeline p {
  display: block;
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.9rem;
}

.insight-grid {
  margin-top: 16px;
}

.insight-card strong {
  display: block;
  margin: 8px 0 0;
  color: var(--text);
  font-size: 1.35rem;
  font-weight: 620;
  line-height: 1.12;
  letter-spacing: -0.035em;
}

.dough-analysis-card,
.dough-lab-card {
  display: grid;
  gap: 22px;
  margin-top: 16px;
  padding: 28px;
  border-radius: var(--radius-lg);
  background: var(--surface);
}

.dough-analysis-card strong,
.dough-lab-header strong {
  display: block;
  margin-top: 8px;
  color: var(--text);
  font-size: clamp(1.5rem, 3vw, 2.35rem);
  font-weight: 620;
  line-height: 1.08;
  letter-spacing: -0.045em;
}

.dough-analysis-card p,
.dough-lab-header p,
.score-metric p {
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.94rem;
}

.dough-lab-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
}

.dough-lab-header span,
.score-metric-heading span {
  display: block;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 600;
}

.score-gauge {
  --score: 0;
  --score-deg: calc(var(--score) * 3.6deg);
  position: relative;
  display: grid;
  width: 132px;
  height: 132px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: conic-gradient(from -90deg, var(--accent) 0deg, var(--accent) var(--score-deg), var(--surface-soft) var(--score-deg) 360deg);
}

.score-gauge::before {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px solid var(--line);
  border-radius: inherit;
  background: var(--surface);
}

.score-gauge div {
  position: relative;
  z-index: 1;
  text-align: center;
}

.score-gauge strong {
  margin: 0;
  font-size: 3rem;
  font-weight: 650;
  line-height: 0.9;
  letter-spacing: -0.06em;
}

.score-gauge span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.78rem;
}

.analysis-bars,
.score-metrics {
  display: grid;
  gap: 16px;
}

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

.analysis-bar-row,
.score-metric {
  display: grid;
  gap: 9px;
}

.score-metric {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: var(--surface-subtle);
}

.analysis-bar-heading,
.score-metric-heading {
  display: flex;
  gap: 12px;
  align-items: baseline;
  justify-content: space-between;
}

.analysis-bar-heading span {
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 600;
}

.analysis-bar-heading strong,
.score-metric-heading strong {
  margin: 0;
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 650;
  white-space: nowrap;
}

.score-metric.is-difficulty .score-metric-heading strong {
  color: var(--text);
}

.analysis-bar-track,
.score-bar-track {
  overflow: hidden;
  height: 9px;
  border-radius: 999px;
  background: var(--surface-soft);
}

.analysis-bar-fill,
.score-bar-fill,
.score-metric.is-difficulty .score-bar-fill {
  height: 100%;
  border-radius: inherit;
  background: var(--accent);
  transition: width 0.36s ease;
}

.analysis-bar-row p,
.score-metric p {
  margin: 0;
  color: var(--muted);
  font-size: 0.84rem;
}

.dough-analysis-card ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 20px;
}

.dough-analysis-card li {
  color: var(--text);
  font-size: 0.92rem;
}

.flour-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.stat {
  padding: 20px;
  border-radius: var(--radius-md);
  background: var(--surface);
}

.stat strong {
  display: block;
  margin-top: 6px;
  font-size: 1.12rem;
  font-weight: 620;
  letter-spacing: -0.025em;
}

.flour-profile-list {
  display: grid;
  gap: 16px;
  margin-top: 16px;
}

.flour-recommendation-card {
  display: grid;
  gap: 18px;
  padding: 28px;
  border-radius: var(--radius-lg);
  background: var(--surface);
}

.recommendation-hero strong {
  display: block;
  margin-top: 6px;
  font-size: clamp(1.55rem, 3vw, 2.35rem);
  font-weight: 620;
  line-height: 1.06;
  letter-spacing: -0.045em;
}

.recommendation-hero p,
.recommendation-chip p,
.recommendation-drivers p,
.warning-list p,
.warning-list li {
  color: var(--muted);
  font-size: 0.9rem;
}

.recommendation-hero p,
.recommendation-chip p,
.recommendation-drivers p {
  margin-top: 9px;
}

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

.recommendation-chip,
.recommendation-drivers div,
.warning-list {
  border: 1px solid var(--line);
  border-radius: 15px;
  padding: 16px;
  background: var(--surface-subtle);
}

.recommendation-chip strong,
.recommendation-drivers strong {
  display: block;
  margin-top: 5px;
  color: var(--text);
  font-size: 1.2rem;
  font-weight: 620;
  line-height: 1.08;
  letter-spacing: -0.035em;
}

.recommendation-chip strong {
  color: var(--accent);
  font-size: 1.42rem;
}

.warning-list {
  border-color: color-mix(in srgb, var(--accent) 32%, var(--line));
  background: color-mix(in srgb, var(--accent) 6%, var(--surface));
}

.warning-list.is-clear {
  border-color: var(--line);
  background: var(--surface-subtle);
}

.warning-list strong {
  display: block;
  margin-bottom: 8px;
  font-weight: 620;
}

.warning-list ul {
  display: grid;
  gap: 7px;
  margin: 0;
  padding-left: 18px;
}

.mix-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.mix-meta span {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 11px;
  background: var(--surface-subtle);
}

.flour-profile-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(240px, 0.95fr);
  gap: 20px;
  padding: 24px;
  border-radius: var(--radius-md);
  background: var(--surface);
}

.flour-profile-card strong {
  display: block;
  margin-top: 5px;
  font-size: 1.18rem;
  font-weight: 620;
  letter-spacing: -0.025em;
}

.flour-profile-card p {
  margin-top: 9px;
  color: var(--muted);
  font-size: 0.92rem;
}

.flour-profile-card dl {
  display: grid;
  gap: 9px;
  margin: 0;
}

.flour-profile-card dl div {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 12px;
  padding-bottom: 9px;
  border-bottom: 1px solid var(--line);
}

.flour-profile-card dt {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 600;
}

.flour-profile-card dd {
  margin: 0;
  font-size: 0.86rem;
  font-weight: 560;
}

.timeline {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.timeline li {
  position: relative;
  min-height: 58px;
  padding: 18px 18px 18px 68px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
  counter-increment: step;
  transition: border-color 0.18s ease;
}

.timeline li::before {
  content: counter(step);
  position: absolute;
  left: 18px;
  top: 18px;
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--surface-soft);
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 700;
}

.timeline strong {
  display: block;
  font-size: 1rem;
  font-weight: 620;
  letter-spacing: -0.015em;
}

.recipe-meta {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 24px;
}

.recipe-meta div {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 15px;
  padding: 16px;
  background: var(--surface-subtle);
}

.recipe-meta span,
.recipe-step-heading span,
.recipe-step-grid span {
  display: block;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 600;
}

.recipe-meta strong {
  display: block;
  margin-top: 5px;
  overflow-wrap: anywhere;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.recipe-steps {
  display: grid;
  gap: 16px;
}

.recipe-step {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 16px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
  transition: border-color 0.18s ease;
}

.recipe-step-number {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: var(--surface-soft);
  color: var(--accent);
  font-weight: 700;
}

.recipe-step-body {
  display: grid;
  gap: 16px;
}

.recipe-step-heading strong {
  display: block;
  margin-top: 4px;
  font-size: 1.28rem;
  font-weight: 620;
  line-height: 1.12;
  letter-spacing: -0.03em;
}

.recipe-step-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.recipe-step-grid div {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px;
  background: var(--surface-subtle);
}

.recipe-step-grid p {
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.88rem;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

@media (max-width: 980px) {
  .hero,
  .calculator-grid,
  .details-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    gap: 32px;
  }

  .hero-card {
    max-width: 460px;
  }

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

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

@media (max-width: 680px) {
  .app-shell {
    width: min(100% - 24px, var(--content-width));
    padding-top: 12px;
  }

  .app-nav {
    top: 8px;
    margin-bottom: 48px;
  }

  .theme-toggle span {
    display: none;
  }

  h1 {
    font-size: clamp(4rem, 18vw, 5.4rem);
  }

  .hero-tagline {
    font-size: clamp(1.45rem, 8vw, 2.15rem);
  }

  .panel,
  .hero-card {
    border-radius: var(--radius-lg);
    padding: 24px;
  }

  .panel-header {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .panel-header .ghost-button {
    grid-column: 1 / -1;
    width: 100%;
  }

  .ingredient-grid,
  .insight-grid,
  .score-metrics,
  .recommendation-grid,
  .recommendation-drivers,
  .recipe-meta,
  .recipe-step-grid,
  .flour-stats {
    grid-template-columns: 1fr;
  }

  .flour-mix-row,
  .dough-lab-header,
  .recipe-step,
  .flour-recommendation-card,
  .flour-profile-card,
  .flour-profile-card dl div {
    grid-template-columns: 1fr;
  }

  .analysis-bar-heading,
  .score-metric-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }

  .score-gauge {
    width: 124px;
    height: 124px;
  }
}