:root {
  color-scheme: light;
  --bg: #f6f7f9;
  --surface: #ffffff;
  --surface-soft: #f0f5f3;
  --ink: #101414;
  --muted: #667171;
  --line: #dde4e3;
  --line-strong: #c7d1d0;
  --green: #0a7a55;
  --green-soft: #e2f4ed;
  --blue: #2457d6;
  --yellow: #f4c76b;
  --danger: #b42318;
  --shadow: 0 16px 44px rgba(28, 38, 38, 0.1);
  --radius: 8px;
  --container: 1180px;
  --ease: cubic-bezier(0.22, 0.68, 0, 1);
  --font: "SF Pro Display", "Avenir Next", "Apple SD Gothic Neo", "Malgun Gothic", ui-sans-serif, system-ui, sans-serif;
  --mono: "SF Mono", "Menlo", "Consolas", ui-monospace, monospace;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100dvh;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  line-height: 1.5;
  letter-spacing: 0;
}

a {
  color: inherit;
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

img {
  display: block;
  max-width: 100%;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 40;
  padding: 9px 12px;
  border-radius: var(--radius);
  background: var(--ink);
  color: #fff;
  font-weight: 800;
  transform: translateY(-150%);
  transition: transform 240ms var(--ease);
}

.skip-link:focus {
  transform: translateY(0);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 72px;
  padding: 12px max(18px, calc((100vw - var(--container)) / 2));
  border-bottom: 1px solid rgba(221, 228, 227, 0.88);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border-radius: var(--radius);
  background: linear-gradient(135deg, #101414, #0a7a55);
  color: #fff;
  font-weight: 900;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-weight: 900;
  line-height: 1.05;
}

.brand small {
  color: var(--muted);
  font-size: 12px;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 6px;
}

.nav a {
  display: inline-grid;
  min-height: 38px;
  place-items: center;
  padding: 8px 11px;
  border-radius: var(--radius);
  color: var(--muted);
  font-size: 14px;
  font-weight: 800;
  text-decoration: none;
  transition: background 220ms var(--ease), color 220ms var(--ease), transform 220ms var(--ease);
}

.nav a:hover,
.nav a:focus-visible {
  background: var(--surface-soft);
  color: var(--ink);
  outline: none;
  transform: translateY(-1px);
}

.nav-primary {
  background: var(--ink);
  color: #fff !important;
}

.app-shell {
  position: relative;
  width: min(var(--container), 100%);
  margin: 0 auto;
  padding: 22px clamp(14px, 3vw, 24px) 44px;
}

.customer-hero,
.tool-panel,
.customer-section,
.support-panel,
.info-band,
.page {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.customer-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 390px);
  gap: clamp(20px, 4vw, 44px);
  align-items: center;
  min-height: 430px;
  padding: clamp(22px, 5vw, 54px);
}

.eyebrow {
  width: fit-content;
  margin: 0 0 10px;
  padding: 5px 8px;
  border-radius: var(--radius);
  background: var(--green-soft);
  color: var(--green);
  font-size: 12px;
  font-weight: 900;
}

h1,
h2,
h3,
p {
  overflow-wrap: break-word;
}

h1 {
  max-width: 760px;
  margin: 0;
  font-size: 60px;
  font-weight: 950;
  line-height: 1.02;
  letter-spacing: 0;
  text-wrap: balance;
  word-break: keep-all;
}

h2 {
  margin: 0;
  font-size: 30px;
  font-weight: 930;
  line-height: 1.15;
  text-wrap: balance;
  word-break: keep-all;
}

h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 900;
  word-break: keep-all;
}

.lead {
  max-width: 64ch;
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 19px;
  line-height: 1.65;
  word-break: keep-all;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.button-link,
.primary,
.secondary,
.ghost,
.preset,
.result-card a,
.offer a {
  min-height: 44px;
  border-radius: var(--radius);
  font-weight: 900;
  transition: transform 220ms var(--ease), background 220ms var(--ease), border-color 220ms var(--ease), opacity 220ms var(--ease);
}

.button-link {
  display: inline-grid;
  place-items: center;
  padding: 10px 14px;
  text-decoration: none;
}

.primary-link,
.primary {
  border: 1px solid var(--ink);
  background: var(--ink);
  color: #fff;
}

.subtle-link {
  border: 1px solid var(--line-strong);
  background: #fff;
  color: var(--ink);
}

.button-link:hover,
.primary:hover,
.secondary:hover,
.ghost:hover,
.preset:hover,
.result-card a:hover {
  transform: translateY(-1px);
}

.button-link:active,
.primary:active,
.secondary:active,
.ghost:active,
.preset:active,
.result-card a:active {
  transform: translateY(0) scale(0.99);
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.trust-row span {
  display: inline-grid;
  min-height: 32px;
  place-items: center;
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  color: var(--muted);
  font-size: 13px;
  font-weight: 850;
}

.app-preview {
  justify-self: center;
  width: min(100%, 330px);
}

.phone-card {
  padding: 12px;
  border: 1px solid #d4dcda;
  border-radius: 28px;
  background: #111514;
  box-shadow: 0 24px 70px rgba(16, 20, 20, 0.18);
}

.phone-top {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 36px;
  color: #fff;
  font-size: 13px;
}

.phone-top span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #33cf91;
}

.phone-photo {
  overflow: hidden;
  border-radius: 18px;
  background: #eff3f2;
}

.phone-photo img {
  width: 100%;
  aspect-ratio: 1 / 1.06;
  object-fit: cover;
}

.phone-options {
  display: grid;
  grid-template-columns: 1fr 1fr 0.7fr;
  gap: 7px;
  margin-top: 10px;
}

.phone-options span,
.phone-cta {
  display: grid;
  min-height: 38px;
  place-items: center;
  border-radius: var(--radius);
  background: #2a302f;
  color: rgba(255, 255, 255, 0.78);
  font-size: 12px;
  font-weight: 850;
}

.phone-options .is-on {
  background: #dff8ec;
  color: #096642;
}

.phone-cta {
  margin-top: 8px;
  background: #33cf91;
  color: #062618;
}

.tool-panel {
  margin-top: 18px;
  padding: clamp(14px, 2.6vw, 22px);
  scroll-margin-top: 92px;
}

.workflow {
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(320px, 0.96fr);
  gap: 14px;
  align-items: start;
}

.step-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  padding: clamp(14px, 2.4vw, 18px);
}

.upload-step {
  grid-row: span 2;
  scroll-margin-top: 92px;
}

.results-step {
  grid-column: 1 / -1;
}

.step-head {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 14px;
}

.step-head p {
  margin: 5px 0 0;
  color: var(--muted);
}

.step-number {
  display: grid;
  flex: 0 0 auto;
  width: 32px;
  height: 32px;
  place-items: center;
  border-radius: var(--radius);
  background: var(--green);
  color: #fff;
  font-family: var(--mono);
  font-weight: 900;
}

.dropzone {
  position: relative;
  display: grid;
  min-height: 360px;
  place-items: center;
  align-content: center;
  gap: 11px;
  padding: clamp(18px, 3vw, 30px);
  border: 1.5px dashed #9cb0ab;
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 78% 22%, rgba(36, 87, 214, 0.12), transparent 16rem),
    linear-gradient(135deg, #f8fbfa, #edf4f1);
  text-align: center;
}

.dropzone.is-dragover,
.dropzone:hover {
  border-color: var(--green);
  background:
    radial-gradient(circle at 78% 22%, rgba(36, 87, 214, 0.14), transparent 16rem),
    linear-gradient(135deg, #f3fbf7, #e6f4ee);
}

.dropzone input {
  position: absolute;
  inset: 0;
  z-index: 2;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.drop-icon {
  position: relative;
  width: min(62vw, 270px);
  aspect-ratio: 1 / 0.76;
  border: 1px solid #cad8d5;
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, #ffffff 0 48%, #d8ebe2 48% 70%, #f4c76b 70% 100%);
  box-shadow: inset 0 0 0 10px rgba(255, 255, 255, 0.56);
}

.drop-icon::before,
.drop-icon::after {
  position: absolute;
  content: "";
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: inset 0 0 0 1px rgba(16, 20, 20, 0.08);
}

.drop-icon::before {
  top: 18%;
  left: 12%;
  width: 44%;
  height: 13%;
}

.drop-icon::after {
  right: 12%;
  bottom: 16%;
  width: 28%;
  height: 28%;
}

.drop-title {
  font-size: 23px;
  font-weight: 950;
}

.drop-copy,
.status,
.file-list {
  color: var(--muted);
  font-size: 14px;
}

.file-list {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.file-item {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.file-item strong {
  font-family: var(--mono);
  font-size: 12px;
}

.diagnosis-panel {
  display: grid;
  gap: 10px;
  margin-top: 12px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #f8fbfa;
}

.diagnosis-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.diagnosis-head strong,
.diagnosis-head span {
  display: block;
}

.diagnosis-head strong {
  font-weight: 930;
}

.diagnosis-head span {
  color: var(--muted);
  font-size: 13px;
}

.mini-secondary {
  flex: 0 0 auto;
  min-height: 38px;
  padding: 0 11px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
  font-size: 13px;
  font-weight: 900;
}

.mini-secondary:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.diagnosis-list {
  display: grid;
  gap: 8px;
}

.diagnosis-card {
  display: grid;
  gap: 8px;
  padding: 10px;
  border: 1px solid var(--line);
  border-left-width: 4px;
  border-radius: var(--radius);
  background: #fff;
}

.diagnosis-card.is-good {
  border-left-color: var(--green);
}

.diagnosis-card.is-medium {
  border-left-color: var(--yellow);
}

.diagnosis-card.is-high {
  border-left-color: var(--danger);
}

.diagnosis-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}

.diagnosis-card-top strong,
.diagnosis-card-top span {
  display: block;
}

.diagnosis-card-top strong {
  font-size: 14px;
}

.diagnosis-card-top span,
.diagnosis-card li {
  color: var(--muted);
  font-size: 12px;
}

.diagnosis-card-top b {
  flex: 0 0 auto;
  padding: 4px 7px;
  border-radius: 999px;
  background: var(--surface-soft);
  color: var(--ink);
  font-size: 11px;
}

.diagnosis-card ul {
  display: grid;
  gap: 4px;
  margin: 0;
  padding-left: 18px;
}

.preset-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  scroll-margin-top: 92px;
}

.preset {
  display: grid;
  gap: 3px;
  min-height: 72px;
  align-content: center;
  padding: 10px;
  border: 1px solid var(--line-strong);
  background: #fff;
  color: var(--ink);
  text-align: left;
}

.preset strong {
  font-size: 15px;
}

.preset span {
  color: var(--muted);
  font-size: 12px;
}

.preset.is-active {
  border-color: #84c7aa;
  background: var(--green-soft);
}

.controls {
  display: grid;
  gap: 12px;
}

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

.label {
  display: block;
  margin-bottom: 5px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 850;
}

input,
select {
  width: 100%;
  min-height: 44px;
  padding: 10px 11px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
}

input[type="range"] {
  padding: 0;
  accent-color: var(--green);
}

input[type="color"] {
  padding: 4px;
}

input:focus-visible,
select:focus-visible,
button:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(10, 122, 85, 0.22);
  outline-offset: 2px;
}

.checkbox-field {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 10px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: #fff;
  font-weight: 850;
}

.checkbox-field input {
  width: 18px;
  min-height: 18px;
  accent-color: var(--green);
}

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

.primary,
.secondary,
.ghost {
  border: 1px solid transparent;
  padding: 0 12px;
}

.primary {
  grid-column: 1 / -1;
  min-height: 52px;
}

.secondary {
  border-color: var(--line-strong);
  background: var(--green);
  color: #fff;
}

.secondary:disabled {
  cursor: not-allowed;
  opacity: 0.45;
  transform: none;
}

.ghost {
  grid-column: 1 / -1;
  border-color: var(--line);
  background: #fff;
  color: var(--muted);
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  min-height: 92px;
}

.result-card {
  display: grid;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.result-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: contain;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #f9fbfb;
}

.result-meta {
  display: grid;
  gap: 2px;
  color: var(--muted);
  font-size: 13px;
}

.result-meta strong {
  color: var(--ink);
}

.result-card a {
  display: grid;
  place-items: center;
  min-height: 40px;
  background: var(--blue);
  color: #fff;
  text-decoration: none;
}

.customer-section {
  display: grid;
  grid-template-columns: minmax(230px, 0.75fr) minmax(0, 1.25fr);
  gap: 20px;
  margin-top: 18px;
  padding: clamp(18px, 3vw, 28px);
}

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

.customer-grid article,
.info-grid article,
.text-card,
.guide-card {
  padding: 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.customer-grid strong {
  display: block;
  margin-bottom: 6px;
  font-weight: 930;
}

.customer-grid p,
.info-grid p,
.text-card p,
.guide-card p {
  margin: 0;
  color: var(--muted);
}

.support-panel {
  display: grid;
  grid-template-columns: minmax(220px, 0.75fr) minmax(280px, 1fr) minmax(240px, 0.85fr);
  gap: 14px;
  align-items: start;
  margin-top: 18px;
  padding: 14px;
}

.ad-slot {
  display: grid;
  min-height: 180px;
  place-items: center;
  align-content: center;
  gap: 8px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  background: #fbfcfc;
  text-align: center;
}

.ad-slot span {
  display: grid;
  width: 46px;
  height: 30px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
}

.ad-slot p,
.money-card p,
.offer-card p {
  margin: 0;
  color: var(--muted);
}

.money-card,
.offer-card {
  display: grid;
  gap: 12px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.target-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 13px;
  border-radius: var(--radius);
  background: var(--ink);
  color: #fff;
}

.target-box.split {
  background: #0a6044;
}

.target-box span {
  color: rgba(255, 255, 255, 0.74);
  font-size: 13px;
}

.target-box strong {
  font-family: var(--mono);
  font-size: 24px;
  font-variant-numeric: tabular-nums;
}

.revenue-note {
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfcfc;
  font-size: 13px;
}

.offers {
  display: grid;
  gap: 10px;
}

.offer {
  display: grid;
  gap: 6px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.offer a {
  display: inline-grid;
  width: fit-content;
  min-height: 34px;
  place-items: center;
  padding: 7px 10px;
  background: var(--green-soft);
  color: var(--green);
  text-decoration: none;
}

.info-band {
  display: grid;
  grid-template-columns: minmax(230px, 0.75fr) minmax(0, 1.25fr);
  gap: 20px;
  margin-top: 18px;
  padding: clamp(18px, 3vw, 28px);
}

.page {
  width: min(900px, calc(100% - 28px));
  margin: 22px auto 44px;
  padding: clamp(20px, 4vw, 34px);
}

.page h1 {
  margin-bottom: 16px;
}

.page > p {
  max-width: 68ch;
  color: var(--muted);
  font-size: 18px;
}

.wide-page {
  width: min(1120px, calc(100% - 28px));
}

.text-card {
  margin-top: 16px;
}

.text-card ul {
  margin: 10px 0 0;
  padding-left: 20px;
  color: var(--muted);
}

.ordered-list {
  margin: 10px 0 0;
  padding-left: 22px;
  color: var(--muted);
}

.ordered-list li + li {
  margin-top: 6px;
}

.comparison-scroll {
  overflow-x: auto;
  margin-top: 12px;
}

.comparison-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: 14px;
}

.comparison-table th,
.comparison-table td {
  padding: 12px;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.comparison-table th {
  background: var(--surface-soft);
  color: var(--ink);
  font-weight: 900;
}

.comparison-table td {
  color: var(--muted);
}

.guide-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
  margin-top: 20px;
}

.guide-card {
  display: grid;
  align-content: start;
  gap: 10px;
  min-height: 210px;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  width: min(var(--container), calc(100% - 28px));
  margin: 0 auto;
  padding: 18px 0 30px;
  color: var(--muted);
  font-size: 14px;
}

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

[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 620ms var(--ease), transform 620ms var(--ease);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 940px) {
  .topbar {
    position: relative;
    display: grid;
    top: auto;
  }

  .nav {
    justify-content: start;
  }

  .customer-hero,
  .workflow,
  .customer-section,
  .support-panel,
  .info-band {
    grid-template-columns: 1fr;
  }

  .upload-step,
  .results-step {
    grid-column: auto;
    grid-row: auto;
  }

  h1 {
    font-size: 48px;
  }
}

@media (max-width: 640px) {
  .brand small {
    display: none;
  }

  .nav a {
    min-height: 34px;
    padding: 7px 8px;
    font-size: 13px;
  }

  .app-shell {
    padding: 14px 12px 36px;
  }

  .customer-hero {
    min-height: 0;
    padding: 18px;
  }

  h1 {
    font-size: 36px;
    line-height: 1.08;
  }

  h2 {
    font-size: 24px;
  }

  .lead {
    font-size: 16px;
  }

  .phone-card {
    border-radius: 22px;
  }

  .dropzone {
    min-height: 260px;
  }

  .preset-grid,
  .control-row,
  .actions,
  .customer-grid,
  .info-grid {
    grid-template-columns: 1fr;
  }

  .diagnosis-head,
  .diagnosis-card-top {
    display: grid;
    justify-content: stretch;
  }

  .mini-secondary,
  .diagnosis-card-top b {
    justify-self: start;
  }

  .comparison-table {
    min-width: 0;
    table-layout: fixed;
    font-size: 12px;
  }

  .comparison-table th,
  .comparison-table td {
    padding: 9px 8px;
  }

  .footer {
    display: grid;
  }
}