:root {
  --paper: #fff8ed;
  --paper-strong: #fff1dc;
  --ink: #1f2937;
  --muted: #667085;
  --line: #262626;
  --orange: #f97316;
  --mint: #14b8a6;
  --blue: #2563eb;
  --rose: #e11d48;
  --white: #ffffff;
  --shadow: 8px 8px 0 #1f2937;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--paper);
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: "Apple SD Gothic Neo", "Pretendard", "Noto Sans KR", sans-serif;
  letter-spacing: 0;
  background:
    linear-gradient(90deg, rgba(31, 41, 55, 0.05) 1px, transparent 1px),
    linear-gradient(rgba(31, 41, 55, 0.04) 1px, transparent 1px),
    var(--paper);
  background-size: 22px 22px;
}

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.app-shell {
  width: min(100%, 480px);
  margin: 0 auto;
  padding: 18px 16px 40px;
}

.hero {
  min-height: 92vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 18px;
  padding: 24px 0 34px;
}

.brand-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 2px solid var(--line);
  border-radius: 6px;
  background: var(--mint);
  color: var(--white);
  font-weight: 900;
  box-shadow: 4px 4px 0 var(--line);
}

.brand-name {
  font-weight: 900;
}

.eyebrow {
  margin: 0;
  color: var(--orange);
  font-size: 13px;
  font-weight: 900;
}

h1,
h2,
p {
  word-break: keep-all;
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  font-size: clamp(40px, 13vw, 64px);
  line-height: 0.98;
  font-weight: 950;
}

h2 {
  margin: 4px 0 0;
  font-size: 24px;
  line-height: 1.15;
  font-weight: 950;
}

.hero-copy {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.65;
}

.studio-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 2px solid var(--line);
  background: var(--white);
  box-shadow: var(--shadow);
}

.studio-strip span {
  padding: 12px 8px;
  text-align: center;
  font-size: 14px;
  font-weight: 900;
}

.studio-strip span + span {
  border-left: 2px solid var(--line);
}

.section {
  margin: 22px 0;
  padding: 18px;
  border: 2px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 6px 6px 0 var(--line);
}

.intro-note {
  background: var(--paper-strong);
}

.intro-note p,
.talk-card p,
.seller-note p {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.65;
}

.section-heading {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 14px;
}

.product-list {
  display: grid;
  gap: 14px;
}

.product-card {
  position: relative;
  padding: 16px;
  border: 2px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.product-card:nth-child(2) {
  background: #ecfeff;
}

.product-card:nth-child(3) {
  background: #fff1f2;
}

.product-visual {
  height: 108px;
  margin-bottom: 14px;
  border: 2px solid var(--line);
  border-radius: 6px;
  background: var(--white);
  overflow: hidden;
}

.product-visual svg {
  width: 100%;
  height: 100%;
  display: block;
}

.product-visual img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

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

.product-topline {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.product-card h3 {
  margin: 0;
  font-size: 22px;
  line-height: 1.2;
}

.price {
  flex: 0 0 auto;
  padding: 5px 8px;
  border: 2px solid var(--line);
  border-radius: 999px;
  background: var(--white);
  font-size: 13px;
  font-weight: 900;
}

.product-card ul {
  margin: 12px 0 14px;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.55;
}

.reaction-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.reaction-button,
.primary-button,
.secondary-button {
  min-height: 44px;
  border: 2px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  font-weight: 900;
  box-shadow: 3px 3px 0 var(--line);
  transition:
    transform 140ms ease,
    box-shadow 140ms ease,
    background 140ms ease;
}

.reaction-button {
  background: var(--white);
  font-size: 14px;
}

.reaction-button.is-selected {
  background: var(--mint);
  color: var(--white);
}

.reaction-button:active,
.primary-button:active,
.secondary-button:active {
  transform: translate(3px, 3px);
  box-shadow: 0 0 0 var(--line);
}

.talk-card {
  background: #eff6ff;
}

.talk-script {
  min-height: 96px;
  padding: 14px;
  border: 2px dashed var(--blue);
  border-radius: 8px;
  background: var(--white);
  color: var(--ink) !important;
  font-size: 18px;
  font-weight: 850;
}

.button-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 14px;
}

.primary-button {
  background: var(--orange);
  color: var(--white);
}

.secondary-button {
  background: var(--white);
}

.full-width {
  width: 100%;
}

.copy-status {
  min-height: 22px;
  margin-top: 10px !important;
  font-size: 13px;
}

.submit-status {
  min-height: 22px;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.auth-gate {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  padding: 18px;
  background:
    linear-gradient(90deg, rgba(31, 41, 55, 0.05) 1px, transparent 1px),
    linear-gradient(rgba(31, 41, 55, 0.04) 1px, transparent 1px),
    var(--paper);
  background-size: 22px 22px;
}

.auth-gate[hidden] {
  display: none;
}

.auth-card {
  display: grid;
  width: min(100%, 420px);
  gap: 12px;
  padding: 22px;
  border: 2px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.auth-card h1 {
  font-size: 34px;
}

body.coach-page:not(.is-coach-unlocked) .app-shell {
  visibility: hidden;
}

.feedback-form {
  display: grid;
  gap: 10px;
}

.feedback-form label,
legend {
  font-size: 14px;
  font-weight: 900;
}

input,
textarea {
  width: 100%;
  border: 2px solid var(--line);
  border-radius: 6px;
  padding: 12px;
  background: var(--paper);
  color: var(--ink);
}

textarea {
  resize: vertical;
}

fieldset {
  display: grid;
  gap: 8px;
  margin: 4px 0 8px;
  padding: 12px;
  border: 2px solid var(--line);
  border-radius: 8px;
}

.radio-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700 !important;
}

.radio-row input {
  width: 18px;
  height: 18px;
}

.metric-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 14px 0;
}

.metric-grid div {
  padding: 12px;
  border: 2px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.metric-grid strong,
.metric-grid span {
  display: block;
}

.metric-grid strong {
  font-size: 30px;
  line-height: 1;
}

.metric-grid span {
  margin-top: 5px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.note-list {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.6;
}

@media (min-width: 700px) {
  .app-shell {
    width: min(100%, 760px);
    padding-inline: 24px;
  }

  .hero {
    min-height: 82vh;
  }

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

  .reaction-grid {
    grid-template-columns: 1fr;
  }
}