* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --navy: #1a365d;
  --navy-2: #2c5282;
  --blue: #4299e1;
  --blue-2: #3182ce;
  --text: #2d3748;
  --muted: #718096;
  --bg: #f5f7fa;
  --card: #f7fafc;
  --border: #e2e8f0;
  --green: #48bb78;
  --red: #f56565;
}

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

header {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-2) 100%);
  color: white;
  padding: 14px 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.header-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  font-size: 36px;
}

.logo-text h1 {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.1;
}

.logo-text p {
  font-size: 12px;
  opacity: 0.9;
}

nav {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.nav-link {
  color: white;
  text-decoration: none;
  padding: 9px 14px;
  border-radius: 6px;
  font-weight: 500;
  font-size: 13px;
  transition: all 0.2s;
  background: rgba(255, 255, 255, 0.1);
}

.nav-link:hover {
  background: rgba(255, 255, 255, 0.2);
}

.nav-link.active {
  background: white;
  color: var(--navy);
}

.hero {
  background: linear-gradient(135deg, #0d2747 0%, #1a365d 55%, #2c5282 100%);
  color: white;
  padding: 70px 20px;
}

.hero-content {
  max-width: 1200px;
  margin: 0 auto;
}

.hero h1 {
  font-size: clamp(28px, 4.5vw, 44px);
  line-height: 1.15;
  font-weight: 800;
  max-width: 700px;
  margin-bottom: 18px;
}

.hero p {
  font-size: 17px;
  color: #cbd5e0;
  max-width: 620px;
  margin-bottom: 28px;
}

.hero-btns {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-block;
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-2) 100%);
  color: white;
  border: none;
  padding: 12px 28px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(66, 153, 225, 0.4);
}

.btn-ghost {
  display: inline-block;
  background: transparent;
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.4);
  padding: 10px 26px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s;
}

.btn-ghost:hover {
  border-color: white;
  background: rgba(255, 255, 255, 0.1);
}

.btn-secondary {
  background: var(--blue);
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-secondary:hover {
  background: var(--blue-2);
}

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 30px 20px;
}

.section {
  background: white;
  border-radius: 12px;
  padding: 28px;
  margin-bottom: 28px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.section-header {
  margin-bottom: 22px;
}

.section-header h2 {
  font-size: 24px;
  color: var(--navy);
  margin-bottom: 6px;
}

.section-desc {
  color: var(--muted);
  font-size: 14px;
}

.toolbar {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.search-input {
  flex: 1;
  min-width: 200px;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  outline: none;
}

.search-input:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.15);
}

.chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.chip {
  padding: 7px 14px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--card);
  cursor: pointer;
  font-size: 13px;
  color: var(--muted);
  transition: all 0.2s;
}

.chip.active {
  background: var(--navy);
  color: white;
  border-color: var(--navy);
}

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

.law-item {
  background: var(--card);
  border-left: 4px solid var(--blue);
  border-radius: 8px;
  padding: 16px 20px;
  transition: transform 0.2s;
}

.law-item:hover {
  transform: translateX(4px);
}

.law-title {
  font-weight: 600;
  font-size: 16px;
  color: var(--text);
  margin-bottom: 4px;
}

.law-meta {
  font-size: 13px;
  color: var(--muted);
}

.law-cat {
  display: inline-block;
  background: var(--blue);
  color: white;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 12px;
  margin-right: 8px;
}

.law-desc {
  font-size: 14px;
  color: #4a5568;
  margin-top: 8px;
}

.empty {
  text-align: center;
  color: var(--muted);
  padding: 30px;
}

.structure-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 16px;
}

.structure-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  text-align: center;
  transition: all 0.2s;
}

.structure-card:hover {
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
  transform: translateY(-3px);
}

.structure-avatar {
  font-size: 40px;
  margin-bottom: 10px;
}

.structure-name {
  font-weight: 700;
  font-size: 16px;
  color: var(--text);
}

.structure-role {
  color: var(--blue);
  font-size: 13px;
  font-weight: 600;
  margin-top: 2px;
}

.structure-dept {
  color: var(--muted);
  font-size: 13px;
  margin-top: 6px;
}

.structure-head {
  display: inline-block;
  margin-top: 8px;
  background: #e6fffa;
  color: #234e52;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: 10px;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.video-card {
  background: var(--card);
  border-radius: 10px;
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
  cursor: pointer;
}

.video-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.12);
}

.video-thumbnail {
  background: linear-gradient(135deg, #4a5568 0%, #2d3748 100%);
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  color: white;
  font-size: 13px;
  text-align: center;
  padding: 10px;
}

.video-thumbnail::after {
  content: "▶";
  font-size: 40px;
  opacity: 0.9;
  position: absolute;
  top: 10px;
  right: 16px;
}

.video-info {
  padding: 14px 16px;
}

.video-title {
  font-weight: 600;
  font-size: 15px;
  color: var(--text);
  margin-bottom: 6px;
}

.video-meta {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--muted);
}

.video-duration {
  background: var(--border);
  padding: 2px 8px;
  border-radius: 4px;
}

.upload-box {
  margin-top: 20px;
  border: 1px dashed var(--blue);
  border-radius: 10px;
  padding: 14px 18px;
  background: #ebf8ff;
}

.upload-box summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--navy-2);
  font-size: 14px;
}

.upload-form {
  display: grid;
  gap: 12px;
  margin-top: 14px;
  max-width: 480px;
}

.upload-form input {
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
}

.complaint-layout {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 24px;
}

.complaint-form {
  display: grid;
  gap: 12px;
}

.complaint-form label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

.complaint-form input,
.complaint-form select,
.complaint-form textarea {
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  outline: none;
}

.complaint-form input:focus,
.complaint-form select:focus,
.complaint-form textarea:focus {
  border-color: var(--blue);
}

.complaint-info {
  background: var(--card);
  border-radius: 10px;
  padding: 24px;
  align-self: start;
}

.complaint-info h3 {
  color: var(--navy);
  margin-bottom: 12px;
}

.phone {
  font-size: 20px;
  font-weight: 700;
  color: var(--navy-2);
  margin-bottom: 8px;
}

.muted {
  color: var(--muted);
  font-size: 13px;
  margin-top: 10px;
}

.form-note {
  color: var(--muted);
  font-size: 13px;
}

.form-success {
  background: #c6f6d5;
  color: #22543d;
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
}

.test-container {
  max-width: 700px;
  margin: 0 auto;
}

.test-start {
  text-align: center;
  padding: 20px 10px;
}

.test-start p {
  font-size: 16px;
  color: #4a5568;
  margin-bottom: 16px;
}

.test-name-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 20px;
}

.test-name-row input {
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  text-align: center;
}

.test-topics {
  list-style: none;
  text-align: left;
  display: inline-block;
  margin-bottom: 24px;
  color: var(--text);
  font-size: 15px;
  line-height: 2;
}

.test-progress {
  background: var(--border);
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 20px;
  font-weight: 600;
  color: #4a5568;
}

.question-text {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 24px;
  line-height: 1.5;
}

.test-options {
  display: grid;
  gap: 12px;
  margin-bottom: 20px;
}

.test-option {
  padding: 15px 20px;
  background: var(--card);
  border: 2px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  font-size: 15px;
  text-align: left;
  font-family: inherit;
}

.test-option:hover {
  border-color: var(--blue);
  background: #ebf8ff;
}

.test-option.correct {
  background: #c6f6d5;
  border-color: var(--green);
  color: #22543d;
}

.test-option.wrong {
  background: #fed7d7;
  border-color: var(--red);
  color: #742a2a;
}

.test-feedback {
  font-weight: 600;
  font-size: 16px;
  min-height: 24px;
  margin-bottom: 20px;
}

.test-result {
  text-align: center;
  padding: 30px 10px;
}

.result-icon {
  font-size: 64px;
  margin-bottom: 16px;
}

.result-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin: 24px 0;
}

.result-stat {
  background: var(--card);
  padding: 20px;
  border-radius: 10px;
}

.result-value {
  display: block;
  font-size: 38px;
  font-weight: 700;
  color: var(--blue);
  margin-bottom: 6px;
}

.result-label {
  color: var(--muted);
  font-size: 14px;
}

.result-message {
  font-size: 16px;
  color: #4a5568;
  margin-bottom: 24px;
  line-height: 1.6;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 22px;
}

.stat-card {
  background: var(--card);
  padding: 20px;
  border-radius: 10px;
  text-align: center;
}

.stat-icon {
  font-size: 30px;
  display: block;
  margin-bottom: 10px;
}

.stat-value {
  display: block;
  font-size: 30px;
  font-weight: 700;
  color: var(--blue);
  margin-bottom: 4px;
}

.stat-label {
  color: var(--muted);
  font-size: 13px;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 10px;
}

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

.data-table th,
.data-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.data-table th {
  background: var(--card);
  color: var(--muted);
  font-weight: 600;
  font-size: 13px;
}

.data-table tr:last-child td {
  border-bottom: none;
}

.score-badge {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 12px;
  font-weight: 700;
  font-size: 13px;
}

.score-good { background: #c6f6d5; color: #22543d; }
.score-mid { background: #fefcbf; color: #744210; }
.score-low { background: #fed7d7; color: #742a2a; }

footer {
  background: var(--navy);
  color: white;
  padding: 28px 20px;
  text-align: center;
}

.footer-content p {
  margin-bottom: 6px;
  font-size: 14px;
}

.footer-note {
  opacity: 0.8;
  font-size: 13px;
}

@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    text-align: center;
  }

  .logo {
    justify-content: center;
  }

  nav {
    justify-content: center;
  }

  .nav-link {
    padding: 7px 12px;
    font-size: 12px;
  }

  .section {
    padding: 20px 16px;
  }

  .complaint-layout {
    grid-template-columns: 1fr;
  }

  .test-name-row {
    grid-template-columns: 1fr;
  }

  .result-stats {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 50px 20px;
  }
}