/* ==========================================================
   LPK Latsol — student.css
   Layout halaman siswa: navbar, page-container, category-grid,
   packet-card, login, riwayat. Load setelah base.css.
   ========================================================== */


/* --- App Shell (for non-quiz pages) --- */
.app-shell {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* --- Top Navbar --- */
.navbar {
  height: 58px;
  background-color: var(--color-white);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  padding: 0 var(--space-6);
  gap: var(--space-4);
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  flex-shrink: 0;
}

.navbar-logo {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}

.navbar-name {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-navy);
  white-space: nowrap;
}

.navbar-spacer {
  flex: 1;
}

.navbar-menu {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.navbar-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-gray-500);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.navbar-link:hover,
.navbar-link.active {
  background-color: var(--color-gray-100);
  color: var(--color-navy);
}

.navbar-link.active {
  background-color: var(--color-navy-100);
  color: var(--color-navy);
}

.navbar-user {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background-color var(--transition-fast);
  text-decoration: none;
  border: none;
  background: none;
  font-family: inherit;
}

.navbar-user:hover {
  background-color: var(--color-gray-100);
}

.navbar-user-info {
  text-align: right;
}

.navbar-user-name {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-navy);
  line-height: 1.2;
}

.navbar-user-role {
  font-size: var(--text-xs);
  color: var(--color-gray-500);
  line-height: 1;
}

/* --- Page Container --- */
.page-container {
  flex: 1;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  padding: var(--space-8) var(--space-6);
}

.page-container-sm {
  max-width: 860px;
}

.page-container-lg {
  max-width: 1400px;
}

/* --- Page Header --- */
.page-header {
  margin-bottom: var(--space-8);
}

.page-title {
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-navy);
  line-height: 1.2;
  margin-bottom: var(--space-1);
}

.page-subtitle {
  font-size: var(--text-base);
  color: var(--color-gray-500);
}

/* --- Welcome Hero --- */
.welcome-hero {
  background-color: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  margin-bottom: var(--space-8);
  overflow: hidden;
  position: relative;
}

.welcome-hero::before {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 200px; height: 100%;
  background-color: var(--color-navy-100);
  clip-path: polygon(40% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.welcome-text {
  position: relative;
  z-index: 1;
}

.welcome-jp {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-gray-500);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-2);
}

.welcome-name {
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: var(--space-1);
}

.welcome-sub {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
}

.welcome-stats {
  display: flex;
  gap: var(--space-6);
  position: relative;
  z-index: 1;
  flex-shrink: 0;
}

.welcome-stat {
  text-align: center;
}

.welcome-stat-value {
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-navy);
  line-height: 1;
  margin-bottom: var(--space-1);
}

.welcome-stat-label {
  font-size: var(--text-xs);
  color: var(--color-gray-500);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* --- Section Title --- */
.section-title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.section-title-action {
  margin-left: auto;
  font-size: var(--text-sm);
  font-weight: 400;
  color: var(--color-gray-500);
}

/* --- Category Grid --- */
.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

/* Category Card */
.category-card {
  background-color: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  text-decoration: none;
  cursor: pointer;
}

.category-card:hover {
  border-color: var(--color-navy);
  box-shadow: 0 2px 12px rgba(26, 31, 54, 0.08);
}

.category-card-header {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.category-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background-color: var(--color-navy-100);
  color: var(--color-navy);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.category-icon.red   { background-color: var(--color-red-light); color: var(--color-red); }
.category-icon.green { background-color: var(--color-green-light); color: var(--color-green); }
.category-icon.orange{ background-color: var(--color-orange-light); color: var(--color-orange); }

.category-card-title {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-navy);
  line-height: 1.2;
  margin-bottom: 2px;
}

.category-card-sub {
  font-size: var(--text-xs);
  color: var(--color-gray-500);
}

/* Sub chips */
.category-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}

.chip {
  padding: 0.2rem 0.5rem;
  background-color: var(--color-gray-100);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  color: var(--color-gray-500);
  font-weight: 500;
}

/* Progress area */
.category-progress {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.category-progress-header {
  display: flex;
  justify-content: space-between;
  font-size: var(--text-xs);
  color: var(--color-gray-500);
}

.category-progress-pct {
  font-weight: 600;
  color: var(--color-navy);
}

.category-card-footer {
  margin-top: auto;
}

/* --- Recent Activity --- */
.activity-list {
  background-color: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.activity-item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--border-color);
  transition: background-color var(--transition-fast);
  text-decoration: none;
  color: inherit;
}

.activity-item:last-child {
  border-bottom: none;
}

.activity-item:hover {
  background-color: var(--color-gray-50);
}

.activity-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background-color: var(--color-navy-100);
  color: var(--color-navy);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.activity-content {
  flex: 1;
  min-width: 0;
}

.activity-title {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-gray-900);
  margin-bottom: 2px;
}

.activity-meta {
  font-size: var(--text-xs);
  color: var(--color-gray-500);
}

.activity-score {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-navy);
  text-align: right;
  flex-shrink: 0;
}

.activity-score.high  { color: var(--color-green); }
.activity-score.mid   { color: var(--color-orange); }
.activity-score.low   { color: var(--color-red); }

/* --- Quiz List Page --- */
.quiz-list-header {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.quiz-list-back {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gray-500);
  transition: all var(--transition-fast);
  text-decoration: none;
  flex-shrink: 0;
}

.quiz-list-back:hover {
  border-color: var(--color-navy);
  color: var(--color-navy);
  background-color: var(--color-navy-100);
}

/* Sub-category Tabs */
.tab-list {
  display: flex;
  gap: var(--space-1);
  border-bottom: 2px solid var(--border-color);
  margin-bottom: var(--space-6);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.tab-btn {
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-gray-500);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
  font-family: inherit;
}

.tab-btn:hover {
  color: var(--color-navy);
}

.tab-btn.active {
  color: var(--color-navy);
  border-bottom-color: var(--color-navy);
}

/* Packet Grid */
.packet-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-4);
}

.packet-card {
  background-color: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.packet-card:hover {
  border-color: var(--color-navy);
  box-shadow: 0 2px 12px rgba(26, 31, 54, 0.07);
}

.packet-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-2);
}

.packet-num {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-gray-400);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.packet-title {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: var(--space-2);
}

.packet-meta {
  display: flex;
  gap: var(--space-3);
  font-size: var(--text-xs);
  color: var(--color-gray-500);
}

.packet-meta-item {
  display: flex;
  align-items: center;
  gap: 4px;
}

.packet-score-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--text-xs);
}

.packet-last-score {
  font-weight: 600;
  font-size: var(--text-sm);
}

.packet-last-score.never { color: var(--color-gray-400); }
.packet-last-score.high  { color: var(--color-green); }
.packet-last-score.mid   { color: var(--color-orange); }
.packet-last-score.low   { color: var(--color-red); }

.packet-card-actions {
  display: flex;
  gap: var(--space-2);
  margin-top: auto;
}

/* --- Login Page --- */
.login-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-bg);
  padding: var(--space-4);
}

.login-card {
  background-color: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--space-8) var(--space-8);
  width: 100%;
  max-width: 400px;
}

.login-logo-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
}

.login-lpk-name {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-navy);
  text-align: center;
}

.login-platform-tag {
  font-size: var(--text-xs);
  color: var(--color-gray-500);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.login-footer {
  text-align: center;
  margin-top: var(--space-6);
  font-size: var(--text-xs);
  color: var(--color-gray-400);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .category-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .welcome-hero::before { display: none; }
}

@media (max-width: 768px) {
  .page-container {
    padding: var(--space-4) var(--space-4);
  }

  .navbar {
    padding: 0 var(--space-4);
  }

  .navbar-menu {
    display: none;
  }

  .navbar-user-info {
    display: none;
  }

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

  .welcome-hero {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-5);
  }

  .welcome-stats {
    width: 100%;
    justify-content: space-around;
  }

  .welcome-name {
    font-size: var(--text-2xl);
  }

  .page-title {
    font-size: var(--text-2xl);
  }
}