@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600&family=Inter:wght@400;500;600&display=swap");

:root {
  --bg: #f6f2ea;
  --ink: #1f1f1f;
  --accent: #ffb457;
  --primary: #1b6b4f;
  --muted: #6c6c6c;
  --card: #fffdfa;
  --line: rgba(20, 20, 20, 0.12);
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, sans-serif;
  color: var(--ink);
  background: var(--bg);
  min-height: 100vh;
  position: relative;
}

.backdrop {
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at 15% 20%, #fff5e1 0%, transparent 55%),
    radial-gradient(circle at 85% 0%, rgba(27, 107, 79, 0.12) 0%, transparent 50%),
    linear-gradient(135deg, rgba(255, 180, 87, 0.15), transparent 60%);
  z-index: -1;
}

.site-header {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: stretch;
  justify-content: space-between;
  padding: 2.5rem 6vw 2rem;
}

.header-main {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  align-items: center;
  justify-content: space-between;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.brand {
  display: flex;
  gap: 1.2rem;
  align-items: center;
}

.brand-mark {
  width: 56px;
  height: 56px;
  border-radius: 18px;
  background: conic-gradient(from 120deg, var(--accent), var(--primary), #254d7c);
  box-shadow: var(--shadow);
}

.brand-title {
  font-family: "Space Grotesk", sans-serif;
  font-size: 2rem;
  margin: 0;
}

.brand-subtitle {
  margin: 0.3rem 0 0;
  color: var(--muted);
}

.controls {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.header-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  justify-content: flex-end;
}

.desktop-only {
  display: flex;
}

.mobile-only {
  display: none;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
  align-items: center;
}

.nav-link {
  font-size: 0.95rem;
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s ease;
}

.nav-link:hover,
.nav-link:focus {
  color: var(--ink);
}

.nav-link-active {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 6px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 0.35rem;
  padding: 0.5rem;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--card);
  cursor: pointer;
}

.nav-toggle-bar {
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 999px;
}

.mobile-nav {
  display: none;
  flex-direction: column;
  gap: 1rem;
  padding: 1.25rem 0 0;
  border-top: 1px solid var(--line);
}

.mobile-nav.is-open {
  display: flex;
}

.mobile-links {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.mobile-tools {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.icon-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.45rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--card);
  cursor: pointer;
  width: 40px;
  height: 40px;
  color: var(--ink);
}

.icon {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.icon-moon {
  fill: none;
}

html[data-theme="dark"] .icon-sun {
  display: none;
}

html[data-theme="light"] .icon-moon,
html:not([data-theme="dark"]) .icon-moon {
  display: none;
}

html[data-theme="dark"] .icon-toggle {
  border-color: rgba(255, 255, 255, 0.35);
  background: #222629;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.lang-select {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.lang-select select {
  padding: 0.4rem 0.6rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--ink);
}

.user-code {
  background: var(--card);
  padding: 1.2rem 1.5rem;
  border-radius: 18px;
  box-shadow: var(--shadow);
  min-width: 260px;
}

.user-code label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.code-row {
  display: flex;
  gap: 0.6rem;
  margin-top: 0.6rem;
}

.code-row input {
  flex: 1;
  padding: 0.6rem 0.8rem;
  border-radius: 12px;
  border: 1px solid var(--line);
  font-size: 0.95rem;
  background: var(--card);
  color: var(--ink);
}

.code-row button {
  border: none;
  background: var(--primary);
  color: white;
  padding: 0.6rem 0.8rem;
  border-radius: 12px;
  cursor: pointer;
}

.hint {
  margin: 0.6rem 0 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  padding: 0 6vw 3rem;
}

.page-content {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 6vw 3rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.page-hero {
  text-align: left;
}

.page-title {
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(2rem, 3vw, 2.6rem);
  margin: 0 0 0.4rem;
}

.page-subtitle {
  color: var(--muted);
  margin: 0;
}

.page-card {
  background: var(--card);
  border-radius: 24px;
  padding: 2rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form-card {
  gap: 1.2rem;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-field label {
  font-size: 0.9rem;
  font-weight: 600;
}

.form-field input,
.form-field textarea {
  padding: 0.75rem 0.9rem;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--card);
  font-size: 0.95rem;
  color: var(--ink);
}

.form-actions {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.btn-primary {
  border: none;
  background: var(--primary);
  color: #fff;
  padding: 0.75rem 1rem;
  border-radius: 12px;
  cursor: pointer;
  font-weight: 600;
}

.btn-primary:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.form-error {
  color: #c0392b;
  font-size: 0.9rem;
  margin: 0;
}

.success-card {
  align-items: center;
  text-align: center;
}

.intro-card,
.upload-card,
.result-card,
.analysis-card {
  background: var(--card);
  border-radius: 24px;
  padding: 2rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.intro-card {
  grid-column: 1 / -1;
}

.landing-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.landing-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.8rem;
  align-items: center;
  padding: 0.9rem 1rem;
  border-radius: 18px;
  background: color-mix(in srgb, var(--primary) 10%, var(--card));
  border: 1px solid color-mix(in srgb, var(--primary) 20%, transparent);
  font-weight: 600;
}

.landing-step p {
  margin: 0;
  color: var(--ink);
}

.step-number {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--accent);
  color: #1f1f1f;
  font-weight: 700;
}

.analysis-content {
  grid-template-columns: minmax(0, 1fr);
}

.analysis-card {
  grid-column: 1 / -1;
}

.analysis-badge {
  align-self: flex-start;
  background: color-mix(in srgb, var(--accent) 70%, white);
  color: #1f1f1f;
  padding: 0.3rem 0.8rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.8rem;
}

.analysis-list {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--ink);
  display: grid;
  gap: 0.6rem;
}

.analysis-body {
  margin: 0;
  color: var(--muted);
}

.analysis-card h2 {
  font-family: "Space Grotesk", sans-serif;
  margin: 0 0 0.6rem;
}

.card-header h1,
.card-header h2 {
  font-family: "Space Grotesk", sans-serif;
  margin: 0 0 0.4rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 2rem 6vw 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  align-items: center;
  justify-content: space-between;
}

.footer-title {
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.2rem;
  margin: 0 0 0.3rem;
}

.footer-tagline {
  margin: 0;
  color: var(--muted);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  justify-content: flex-end;
}

.footer-meta {
  border-top: 1px solid var(--line);
  padding-top: 1rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
}

@media (max-width: 900px) {
  .desktop-only {
    display: none;
  }

  .mobile-only {
    display: inline-flex;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .header-actions {
    gap: 0.6rem;
  }

  .footer-nav {
    justify-content: flex-start;
  }
}

@media (max-width: 720px) {
  .header-main {
    align-items: flex-start;
  }

  .header-tools {
    justify-content: flex-start;
  }

  .site-nav,
  .footer-nav {
    justify-content: flex-start;
  }

  .page-hero {
    text-align: left;
  }

  .footer-nav {
    flex-direction: column;
    align-items: flex-start;
  }

  .mobile-tools {
    flex-wrap: wrap;
  }
}

.card-header p {
  margin: 0;
  color: var(--muted);
}

.source-select {
  display: grid;
  gap: 0.6rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.source-options {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1rem;
  color: var(--ink);
}

.source-options label {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.source-options input {
  accent-color: var(--primary);
}

.dropzone {
  border: 2px dashed color-mix(in srgb, var(--primary) 55%, transparent);
  border-radius: 20px;
  padding: 2rem;
  text-align: center;
  position: relative;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.dropzone.dragover {
  border-color: var(--primary);
  background: color-mix(in srgb, var(--primary) 12%, transparent);
}

.dropzone input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.dropzone-icon {
  font-size: 2rem;
  display: inline-block;
  background: var(--accent);
  width: 52px;
  height: 52px;
  line-height: 52px;
  border-radius: 50%;
  margin-bottom: 0.8rem;
}

.dropzone .sub {
  color: var(--muted);
  font-size: 0.8rem;
}

.actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.actions button {
  background: var(--button-bg, var(--ink));
  color: var(--button-text, white);
  border: none;
  padding: 0.7rem 1.4rem;
  border-radius: 14px;
  cursor: pointer;
}

.actions .button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  padding: 0.7rem 1.4rem;
  border-radius: 14px;
  background: var(--button-bg, var(--ink));
  color: var(--button-text, white);
  font-weight: 600;
}

.actions .button-link.secondary {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}

.status {
  font-size: 0.85rem;
  color: var(--muted);
}

.warnings {
  display: grid;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: #b54b3a;
}

.result-meta {
  font-size: 0.85rem;
  color: var(--muted);
}

.result-meta select {
  margin-left: 0.6rem;
  padding: 0.3rem 0.5rem;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--ink);
}

.table-shell {
  overflow: auto;
  border-radius: 16px;
  border: 1px solid var(--line);
}

#resultTable {
  width: 100%;
  border-collapse: collapse;
  min-width: 520px;
}

#resultTable th,
#resultTable td {
  padding: 0.6rem 0.8rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  font-size: 0.9rem;
}

#resultTable th {
  background: color-mix(in srgb, var(--primary) 12%, var(--card));
  position: sticky;
  top: 0;
  z-index: 1;
}

#resultTable td[contenteditable="true"] {
  background: color-mix(in srgb, var(--accent) 20%, var(--card));
  outline: none;
}

.privacy-content {
  max-width: 920px;
  margin: 0 auto;
  padding: 0 6vw 3rem;
}

.privacy-card {
  background: var(--card);
  border-radius: 24px;
  padding: 2rem;
  box-shadow: var(--shadow);
  display: grid;
  gap: 1.5rem;
}

.privacy-title {
  font-family: "Space Grotesk", sans-serif;
  font-size: 2.2rem;
  margin: 0;
}

.privacy-subtitle {
  margin: 0;
  color: var(--muted);
}

.privacy-meta {
  margin: 0;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.privacy-section {
  display: grid;
  gap: 0.6rem;
}

.privacy-section h2 {
  margin: 0;
  font-size: 1.05rem;
}

.privacy-section p {
  margin: 0;
  line-height: 1.7;
}

.privacy-section ul {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--muted);
  display: grid;
  gap: 0.4rem;
}

@media (max-width: 720px) {
  .site-header {
    padding: 2rem 6vw 1rem;
  }

  .content {
    padding-bottom: 2rem;
  }

  .actions button {
    width: 100%;
  }
}