* {
  box-sizing: border-box;
}

body {
  font-family: 'Arial', sans-serif;
  background: #f0f2f5;
  margin: 0;
  padding: 0;
}

body.filters-open {
  overflow: hidden;
}

.main-layout {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto 1fr;
  min-height: 100vh;
}

/* ============================================================================ */
/* HEADER SECTION */
/* ============================================================================ */
.header-section {
  grid-column: 1 / -1;
  grid-row: 1;
}

h1 {
  text-align: center;
  margin-top: 30px;
  font-size: 2.5rem;
  color: #333;
}

#head {
  margin: 0;
}

/* ============================================================================ */
/* GITHUB RIBBON */
/* ============================================================================ */
.github-ribbon {
  position: absolute;
  top: 0;
  right: 0;
  border: 0;
  z-index: 100000;
}

/* ============================================================================ */
/* FILTERS PANEL - DESKTOP/MOBILE LAYOUT */
/* ============================================================================ */
.filter-toggle-btn {
  display: none;
  position: fixed;
  bottom: 20px;
  left: 20px;
  padding: 12px 20px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  z-index: 1000;
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
  transition: all 0.3s;
}

.filter-toggle-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

.filter-toggle-btn:active {
  transform: translateY(0);
}

.filter-close-btn {
  display: none;
  position: absolute;
  top: 15px;
  right: 15px;
  background: rgba(0, 0, 0, 0.1);
  border: none;
  color: white;
  font-size: 28px;
  width: 40px;
  height: 40px;
  padding: 0;
  cursor: pointer;
  border-radius: 4px;
  transition: background 0.3s;
}

.filter-close-btn:hover {
  background: rgba(0, 0, 0, 0.2);
}

.filters-aside {
  z-index: 1000000;
  position: sticky;
  top: 0;
  width: auto;
  max-width: 350px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  padding: 30px 20px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
  grid-column: 1;
  grid-row: 2;
  margin-top: 0;
  align-self: start;
}

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

.filters-content h2 {
  color: white;
  text-align: center;
  margin: 0 0 25px 0;
  font-size: 1.5rem;
  font-weight: 600;
}

.filters-section {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  justify-content: flex-start;
  align-items: flex-end;
  margin-bottom: 20px;
}

.search-input-wrapper {
  width: 100%;
  position: relative;
}

#languageFilter,
#searchInput {
  width: 100%;
  padding: 12px 40px 12px 15px;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  transition: all 0.3s;
}

#languageFilter:focus,
#searchInput:focus {
  outline: none;
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

.search-icon {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: #667eea;
  pointer-events: none;
}

.filter-group {
  display: flex;
  gap: 10px;
  align-items: center;
  white-space: nowrap;
  width: 100%;
  flex: 1 1 220px;
}

.filter-group label {
  color: white;
  font-weight: 500;
  margin: 0;
  text-align: left;
  flex: 0 0 auto;
}

.filter-group select {
  padding: 10px 12px;
  border: none;
  border-radius: 6px;
  font-size: 13px;
  background: white;
  cursor: pointer;
  transition: all 0.3s;
  flex: 1 1 auto;
  width: 100%;
}

.filter-group input {
  flex: 1 1 auto;
  width: 100%;
}

.filter-group select:hover {
  box-shadow: 0 0 8px rgba(255, 255, 255, 0.3);
}

.filter-group select:focus {
  outline: none;
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

.growth-indicator {
  margin-top: 8px;
  padding: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  color: #27ae60; /* Green for positive growth */
  background-color: #e9f7ef;
  border-radius: 6px;
  border: 1px solid #a7d7c5;
}

.filters-buttons {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-bottom: 20px;
}

.btn-reset {
  padding: 10px 24px;
  background: rgba(255, 100, 100, 0.2);
  border: 2px solid rgba(255, 255, 255, 0.5);
  color: white;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 500;
  transition: all 0.3s;
}

.btn-reset:hover {
  background: rgba(255, 100, 100, 0.4);
  border-color: white;
}

.btn-apply {
  padding: 10px 24px;
  background: rgba(255, 255, 255, 0.2);
  border: 2px solid white;
  color: white;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 500;
  transition: all 0.3s;
}

.btn-apply:hover {
  background: white;
  color: #667eea;
}

.export-buttons {
  display: flex;
  gap: 10px;
  justify-content: center;
}

.filters-buttons,
.export-buttons {
  width: 100%;
}

.filters-buttons .btn-apply,
.filters-buttons .btn-reset,
.export-buttons .btn-apply {
  flex: 1;
}

.btn-random {
  width: 100%;
  padding: 12px;
  background: #ff9f43;
  border: 2px solid rgba(255, 255, 255, 0.5);
  color: white;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.3s;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 1rem;
}

.btn-random:hover {
  background: #ffb168;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(255, 159, 67, 0.4);
}

.results-info {
  text-align: center;
  color: white;
  font-size: 13px;
}

.results-info strong {
  font-weight: 600;
}

#resultsFound {
  display: none;
}

.results-info-desktop {
  text-align: center;
  color: #666;
  font-size: 13px;
}

.results-info-desktop strong {
  font-weight: 600;
}

#resultsFoundDesktop {
  display: none;
}

/* ============================================================================ */
/* LOADING STATE */
/* ============================================================================ */
.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(102, 126, 234, 0.2);
  border-top-color: #667eea;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-right: 8px;
  vertical-align: middle;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

#loadingState,
#loadingStateDesktop {
  position: fixed;
  top: 0;
  left: 0;

  width: 100vw;
  height: 100vh;

  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;

  gap: 10px;
  background: #f0f2f5;
  z-index: 1000001;
}

/* ============================================================================ */
/* MAIN CONTENT */
/* ============================================================================ */
.main-content {
  grid-column: 2;
  grid-row: 2;
  padding-left: 20px;
  padding-right: 20px;
}

/* ============================================================================ */
/* FEATURED USER SECTION */
/* ============================================================================ */
.featured-user-section {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 16px;
  padding: 32px;
  margin: 20px auto;
  max-width: 1000px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  position: relative;
  overflow: hidden;
}

.featured-user-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(
    circle,
    rgba(255, 255, 255, 0.1) 0%,
    transparent 70%
  );
  animation: pulse 15s ease-in-out infinite;
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.5;
  }
  50% {
    transform: scale(1.1);
    opacity: 0.3;
  }
}

.featured-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  padding: 8px 20px;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 600;
  color: white;
  margin-bottom: 20px;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.featured-content {
  display: flex;
  gap: 32px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.featured-avatar-link {
  flex-shrink: 0;
}

.featured-avatar {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  border: 5px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease;
}

.featured-avatar:hover {
  transform: scale(1.05);
}

.featured-info {
  flex: 1;
  color: white;
}

.featured-name {
  font-size: 2rem;
  font-weight: 700;
  margin: 0 0 8px 0;
  color: white;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.featured-login {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  display: inline-block;
  margin-bottom: 12px;
  transition: color 0.2s;
}

.featured-login:hover {
  color: white;
  text-decoration: underline;
}

.featured-location {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 20px;
}

.featured-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: 20px;
  margin: 20px 0;
}

.featured-stat {
  text-align: center;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  padding: 16px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.featured-stat .stat-value {
  font-size: 1.8rem;
  font-weight: 700;
  color: white;
  margin-bottom: 4px;
}

.featured-stat .stat-label {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.85);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 500;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
}

.featured-languages {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.featured-language-badge {
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  padding: 6px 14px;
  border-radius: 16px;
  font-size: 0.85rem;
  color: white;
  font-weight: 500;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

@media (max-width: 768px) {
  .featured-user-section {
    padding: 24px;
    margin: 10px;
  }

  .featured-content {
    flex-direction: column;
    text-align: center;
    gap: 20px;
  }

  .featured-avatar {
    width: 120px;
    height: 120px;
  }

  .featured-name {
    font-size: 1.5rem;
  }

  .featured-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
}

.grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  padding: 20px;
  max-width: 1400px;
  margin: 0 auto;
}

/* ============================================================================ */
/* CARDS */
/* ============================================================================ */
.card {
  position: relative;
  width: 220px;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
  background: #fff;
  transition:
    transform 0.3s,
    box-shadow 0.3s;
  display: none;
}

.card.visible {
  display: block;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.25);
}

.card.highlight {
  animation: pulse-highlight 2s ease-in-out;
  box-shadow:
    0 0 0 4px #ff9f43,
    0 10px 20px rgba(0, 0, 0, 0.25);
  z-index: 10;
}

@keyframes pulse-highlight {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
  100% {
    transform: scale(1);
  }
}

.card img {
  width: 100%;
  display: block;
}

.details-box {
  padding: 10px;
  text-align: center;
}

.details-box strong {
  display: block;
  font-size: 1.1rem;
  color: #222;
}

.details-box span {
  display: block;
  color: #666;
  font-size: 0.9rem;
}

.stats-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid #eee;
  font-size: 0.85rem;
}

.stat {
  flex: 1;
  text-align: center;
}

.stat a {
  color: #667eea;
  text-decoration: none;
  font-weight: 600;
  transition: color 0.2s;
}

.stat a:hover {
  color: #764ba2;
  text-decoration: underline;
}

.stat-label {
  display: block;
  font-size: 0.75rem;
  color: #999;
  margin-top: 2px;
}

.activity-row {
  margin-top: 10px;
  padding: 8px;
  font-size: 0.8rem;
  color: #555;
  background: #f7f8fb;
  border: 1px solid #eef0f5;
  border-radius: 8px;
  line-height: 1.4;
}

.lang-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
  justify-content: center;
}

.lang-pill {
  padding: 6px 10px;
  border-radius: 999px;
  background: linear-gradient(
    135deg,
    rgba(102, 126, 234, 0.12),
    rgba(118, 75, 162, 0.12)
  );
  color: #4a4a4a;
  font-size: 0.8rem;
  border: 1px solid rgba(102, 126, 234, 0.25);
  white-space: nowrap;
}

/* ============================================================================ */
/* FOOTER */
/* ============================================================================ */
footer {
  text-align: center;
  padding: 20px;
  font-size: 14px;
  color: #555;
}

#flagcounter {
  position: fixed;
  bottom: 0;
  left: 0;
  width: auto;
  height: auto;
}

/* ============================================================================ */
/* RESPONSIVE - MOBILE (< 768px) */
/* ============================================================================ */
@media (max-width: 767px) {
  .main-layout {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr;
  }

  .header-section {
    grid-column: 1 / -1;
    grid-row: 1;
  }

  .filters-aside {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100vh;
    overflow-y: auto;
    padding: 60px 20px 20px 20px;
    grid-column: unset;
    grid-row: unset;
    margin-top: 0;
    margin-bottom: 0;
    max-width: none;
  }

  .filters-aside.open {
    display: flex;
    flex-direction: column;
  }

  .filters-content {
    flex: 1;
    width: 100%;
  }

  .filter-close-btn {
    display: block;
  }

  .filter-toggle-btn {
    display: block;
  }

  .filters-section {
    flex-direction: column;
    gap: 15px;
    width: 100%;
  }

  .search-input-wrapper {
    width: 100%;
    min-width: 100%;
    max-width: 100%;
  }

  .filter-group {
    flex-direction: column;
    align-items: stretch;
    white-space: normal;
    width: 100%;
    flex: 0 0 auto;
  }

  .filter-group label {
    margin-bottom: 5px;
    text-align: left;
  }

  .filter-group select {
    width: 100%;
    flex: 0 0 auto;
  }

  .filter-group input {
    width: 100%;
    flex: 0 0 auto;
  }

  .filters-buttons {
    flex-direction: row;
    gap: 10px;
    justify-content: space-between;
    width: 100%;
  }

  .btn-reset,
  .btn-apply {
    flex: 1;
    padding: 12px;
  }

  .btn-apply {
    order: -1;
  }

  .export-buttons {
    width: 100%;
  }

  .export-buttons .btn-apply {
    flex: 1;
    padding: 12px;
  }

  .main-content {
    grid-column: 1;
    grid-row: 2;
  }

  .grid {
    padding: 10px;
    gap: 15px;
    width: 100%;
  }

  .card {
    width: 100%;
  }

  h1 {
    font-size: 1.8rem;
    margin: 20px 0;
  }

  .results-info-desktop {
    display: none;
  }
}

/* Fine-tune mobile card widths for small breakpoints */
@media (min-width: 401px) and (max-width: 540px) {
  .card {
    width: calc(50% - 12px);
  }
}

@media (min-width: 541px) and (max-width: 767px) {
  .card {
    width: calc(33.333% - 14px);
  }
}

/* ============================================================================ */
/* RESPONSIVE - DESKTOP (> 769px) */
/* ============================================================================ */
@media (min-width: 768px) {
  .main-layout {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr;
    padding-left: 320px;
  }

  .filter-toggle-btn {
    display: none !important;
  }

  .filter-close-btn {
    display: none !important;
  }

  .filters-aside {
    position: fixed;
    top: 0;
    left: 0;
    width: 320px;
    max-width: 320px;
    height: 100vh;
    overflow-y: auto;
    display: block !important;
    grid-column: 1;
    grid-row: 2;
    align-self: start;
  }

  .main-content {
    grid-column: 1;
    grid-row: 2;
  }

  .results-info {
    display: none;
  }
}

/* ============================================================================ */
/* TOAST NOTIFICATION */
/* ============================================================================ */
.toast-notification {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 20px 40px;
  border-radius: 12px;
  font-size: 18px;
  font-weight: 500;
  z-index: 10000;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
  text-align: center;
  max-width: 90%;
  animation: toastFadeIn 0.3s ease-out;
}

@keyframes toastFadeIn {
  from {
    opacity: 0;
    transform: translate(-50%, -60%);
  }
  to {
    opacity: 1;
    transform: translate(-50%, -50%);
  }
}

@media (max-width: 768px) {
  .toast-notification {
    padding: 16px 24px;
    font-size: 16px;
    border-radius: 10px;
    max-width: 85%;
  }
}

@media (max-width: 480px) {
  .toast-notification {
    padding: 14px 20px;
    font-size: 15px;
    border-radius: 8px;
    max-width: 80%;
  }
}