:root {
  color-scheme: light;
  --bg: #f4f5ff;
  --surface: #ffffff;
  --surface-alt: #eef1ff;
  --primary: #6c63ff;
  --primary-dark: #5348c7;
  --accent: #ff9f68;
  --accent-soft: #ffe6d6;
  --success: #2d9d78;
  --error: #e15b64;
  --text: #1f2a44;
  --text-muted: #586079;
  --border: #d9def2;
  --shadow-soft: 0 22px 45px rgba(108, 99, 255, 0.18);
  --shadow-card: 0 18px 35px rgba(60, 64, 91, 0.08);
  --star-active: #f7b733;
  --star-inactive: #d7d9e6;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, rgba(244, 245, 255, 1) 0%, #ffffff 60%);
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  color: var(--primary-dark);
}

.site-header {
  background: linear-gradient(120deg, var(--primary) 0%, #9a8cff 100%);
  color: #fff;
  padding: 1.5rem 0;
  box-shadow: 0 10px 30px rgba(76, 87, 191, 0.25);
}

.site-header .container {
  width: min(1180px, 92vw);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.brand {
  margin: 0;
}

.brand a {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: #fff;
  font-weight: 700;
  font-size: 1.6rem;
  letter-spacing: 0.05em;
}

.brand-mark {
  height: 48px;
  width: auto;
  display: block;
  filter: drop-shadow(0 8px 18px rgba(0, 0, 0, 0.2));
}

.brand-name {
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

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

nav a {
  color: rgba(255, 255, 255, 0.88);
  padding: 0.45rem 0.95rem;
  border-radius: 999px;
  transition: background 0.2s ease, color 0.2s ease;
}

nav a:hover {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
}

.language-form {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: rgba(255, 255, 255, 0.92);
}

.language-form label {
  font-size: 0.95rem;
}

.language-form select {
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 0.65rem;
  padding: 0.4rem 0.75rem;
  min-width: 110px;
}

.language-form select:focus {
  outline: 2px solid rgba(255, 255, 255, 0.7);
  outline-offset: 2px;
}

.container {
  width: min(1180px, 92vw);
  margin: 0 auto;
  padding: 2.5rem 0;
}

.hero {
  position: relative;
  background: var(--surface);
  border-radius: 24px;
  padding: 2.8rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2.5rem;
  align-items: center;
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  width: 320px;
  height: 320px;
  right: -120px;
  bottom: -120px;
  background: radial-gradient(circle at center, rgba(255, 159, 104, 0.45), rgba(255, 159, 104, 0));
  z-index: 0;
}

.hero > * {
  position: relative;
  z-index: 1;
}

.hero h2 {
  margin-top: 0;
  font-size: 2.25rem;
  line-height: 1.2;
}

.hero p {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 1.5rem;
}

.cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  background: #edf0ff;
  color: var(--primary);
  padding: 0.75rem 1.4rem;
  border-radius: 999px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  box-shadow: 0 12px 24px rgba(108, 99, 255, 0.12);
}

.button.primary {
  background: linear-gradient(135deg, var(--primary) 0%, #8a7bff 100%);
  color: #fff;
  box-shadow: 0 16px 30px rgba(108, 99, 255, 0.25);
}

.button.secondary {
  background: #fff;
  color: var(--primary-dark);
  box-shadow: inset 0 0 0 1px rgba(108, 99, 255, 0.2);
}

.button:hover {
  transform: translateY(-2px);
}

section + section {
  margin-top: 2.5rem;
}

.panel {
  background: var(--surface);
  border-radius: 20px;
  padding: 2rem;
  box-shadow: var(--shadow-card);
  display: grid;
  gap: 1.5rem;
}

.panel.accent {
  background: linear-gradient(135deg, rgba(255, 230, 214, 0.9) 0%, rgba(255, 255, 255, 0.95) 100%);
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.panel-header h2,
.panel-header h3 {
  margin: 0;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.feature-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.feature-item {
  background: var(--surface-alt);
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: 0 12px 28px rgba(154, 140, 255, 0.12);
  display: grid;
  gap: 0.5rem;
}

.feature-icon {
  font-size: 1.6rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--surface);
  border-radius: 18px;
  padding: 1.5rem;
  border: 1px solid rgba(108, 99, 255, 0.12);
  box-shadow: var(--shadow-card);
  display: grid;
  gap: 0.75rem;
}

.accent-card {
  background: linear-gradient(160deg, rgba(255, 230, 214, 0.85) 0%, rgba(255, 255, 255, 0.92) 100%);
  border: none;
  box-shadow: 0 14px 35px rgba(255, 159, 104, 0.25);
}

.argument-card {
  background: var(--surface-alt);
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: inset 0 0 0 1px rgba(108, 99, 255, 0.12);
}

.argument-card h3 {
  margin-top: 0;
}

.argument-card p {
  margin: 0;
  line-height: 1.6;
}

.argument-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 1.25rem;
}

.argument-text {
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.4rem;
}

.argument-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem 1.2rem;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.vote-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
  display: grid;
  gap: 0.75rem;
}

.vote-list li {
  background: rgba(108, 99, 255, 0.08);
  border-radius: 12px;
  padding: 0.85rem 1rem;
  display: grid;
  gap: 0.35rem;
}

.alert {
  padding: 0.9rem 1.1rem;
  border-radius: 12px;
  background: rgba(225, 91, 100, 0.12);
  color: var(--error);
}

.form-grid {
  display: grid;
  gap: 1.2rem;
}

.form-grid label {
  display: grid;
  gap: 0.45rem;
  color: var(--text-muted);
  font-weight: 600;
}

.form-grid input[type="text"],
.form-grid input[type="password"],
.form-grid select,
.form-grid textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: 1rem;
  transition: border 0.2s ease, box-shadow 0.2s ease;
}

.form-grid textarea {
  resize: vertical;
}

.form-grid input:focus,
.form-grid select:focus,
.form-grid textarea:focus {
  outline: none;
  border-color: rgba(108, 99, 255, 0.5);
  box-shadow: 0 0 0 4px rgba(108, 99, 255, 0.12);
}

.progress {
  font-weight: 600;
  color: var(--primary-dark);
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: rgba(108, 99, 255, 0.12);
}

.rating {
  border: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 1rem;
}

.rating legend {
  font-weight: 600;
  color: var(--text);
}

.rating-stars {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 0.35rem;
  flex-direction: row-reverse;
}

.rating input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.rating label {
  position: relative;
  width: 2.5rem;
  height: 2.5rem;
  display: grid;
  place-items: center;
  cursor: pointer;
  color: var(--star-inactive);
  transition: transform 0.2s ease, color 0.2s ease;
}

.rating label::before {
  content: "\2605";
  font-size: 2rem;
  line-height: 1;
}

.rating label:hover,
.rating label:hover ~ label {
  color: var(--star-active);
  transform: translateY(-2px);
}

.rating input:checked ~ label {
  color: var(--star-active);
}

.rating input:focus-visible + label {
  outline: 3px solid rgba(108, 99, 255, 0.5);
  outline-offset: 4px;
  border-radius: 0.35rem;
}

.rating-form {
  display: grid;
  gap: 1.5rem;
}

.rating-form textarea {
  min-height: 120px;
}

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

.graph-container {
  height: 500px;
  border-radius: 20px;
  border: 1px solid rgba(108, 99, 255, 0.2);
  background: var(--surface-alt);
}

.summary-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.summary-table th,
.summary-table td {
  padding: 0.95rem 1.1rem;
  border-bottom: 1px solid rgba(108, 99, 255, 0.12);
  text-align: left;
}

.summary-table tr:last-child th,
.summary-table tr:last-child td {
  border-bottom: none;
}

.site-footer {
  background: linear-gradient(120deg, rgba(108, 99, 255, 0.12) 0%, rgba(108, 99, 255, 0.02) 100%);
  color: var(--text-muted);
  padding: 1.5rem 0;
}

.site-footer .container {
  padding: 0;
}

.site-footer small {
  font-size: 0.9rem;
}

@media (max-width: 900px) {
  .hero {
    padding: 2.2rem;
    gap: 2rem;
  }

  nav {
    justify-content: center;
  }

  .panel {
    padding: 1.75rem;
  }
}

@media (max-width: 640px) {
  .site-header {
    padding: 1.25rem 0;
  }

  .site-header .container {
    justify-content: center;
    text-align: center;
  }

  .brand a {
    flex-direction: column;
  }

  .language-form {
    width: 100%;
    justify-content: flex-start;
  }

  .hero {
    padding: 1.9rem;
  }

  .panel-header {
    align-items: flex-start;
  }

  .actions {
    width: 100%;
  }

  .rating-stars {
    gap: 0.45rem;
  }

  .rating label {
    width: 2.6rem;
    height: 2.6rem;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --surface: #1d2236;
    --surface-alt: #262c42;
    --bg: #101324;
    --text: #f0f3ff;
    --text-muted: #c6cae2;
    --border: #313b5c;
    --shadow-soft: 0 22px 45px rgba(24, 27, 45, 0.65);
    --shadow-card: 0 18px 35px rgba(10, 11, 19, 0.8);
  }

  body {
    background: linear-gradient(180deg, rgba(16, 19, 36, 1) 0%, #101324 60%);
  }

  .site-header {
    box-shadow: none;
  }

  .panel,
  .hero,
  .summary-table tr:nth-child(even) {
    background: var(--surface);
  }
}