/* ==========================================================================
   Components - The Technology Tribe
   Cards, buttons, navigation, forms, and UI components
   ========================================================================== */

/* ==========================================================================
   CARDS
   ========================================================================== */

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease-in-out;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.card:hover {
  box-shadow: var(--shadow-base);
  transform: translateY(-2px);
}

.card-header {
  margin-bottom: var(--space-4);
}

.card-title {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-2);
  line-height: var(--leading-tight);
}

.card-subtitle {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  font-weight: var(--font-medium);
}

.card-body {
  flex-grow: 1;
  margin-bottom: var(--space-4);
}

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

.card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: var(--radius-base);
  margin-bottom: var(--space-4);
}

/* Event Cards */
.event-card {
  position: relative;
}

.event-date {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  background: var(--color-primary);
  color: white;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-base);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
}

.event-mode {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
}

/* Blog Post Cards */
.post-card .card-image {
  height: 160px;
}

.post-author {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
}

.author-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
}

.reading-time {
  color: var(--color-text-secondary);
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border: 1px solid transparent;
  border-radius: var(--radius-full);
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease-in-out;
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Button Sizes */
.btn-sm {
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
}

.btn-lg {
  padding: var(--space-4) var(--space-6);
  font-size: var(--text-lg);
}

/* Button Variants */
.btn-primary {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  text-decoration: none;
}

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  background: var(--color-surface-elevated);
  border-color: var(--color-border-hover);
  text-decoration: none;
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary);
  color: white;
  text-decoration: none;
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
  border-color: transparent;
}

.btn-ghost:hover {
  color: var(--color-text);
  background: var(--color-surface);
  text-decoration: none;
}

/* ==========================================================================
   DEV COMMUNITY-INSPIRED HEADER
   ========================================================================== */

.dev-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.dev-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 200px;
  max-width: 1380px;
  margin: 0 auto;
  padding: 0 var(--space-4);
  gap: var(--space-4);
}

.dev-header-left {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex: 1;
}

.dev-header-right {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* Logo */
.dev-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}

.dev-logo img {
  height: 200px;
  width: auto;
}

/* Search */
.dev-search {
  position: relative;
  flex: 1;
  max-width: 420px;
}

.dev-search-input {
  width: 100%;
  height: 40px;
  padding: 0 var(--space-3) 0 40px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: var(--text-base);
  transition: all 0.2s ease-in-out;
}

.dev-search-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: var(--focus-ring);
  background: var(--color-bg);
}

.dev-search-input::placeholder {
  color: var(--color-text-secondary);
}

.dev-search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-secondary);
  pointer-events: none;
}

/* Icon buttons */
.dev-icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: none;
  border-radius: var(--radius-base);
  background: transparent;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all 0.2s ease-in-out;
}

.dev-icon-btn:hover {
  background: var(--color-surface);
  color: var(--color-text);
}

.dev-icon-btn svg {
  flex-shrink: 0;
}

/* Create post button */
.dev-create-btn {
  padding: 8px var(--space-4);
  background: var(--color-primary);
  color: white;
  text-decoration: none;
  border-radius: var(--radius-base);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  white-space: nowrap;
  transition: background-color 0.2s ease-in-out;
}

.dev-create-btn:hover {
  background: var(--color-primary-hover);
  text-decoration: none;
}

/* User avatar */
.dev-user-menu {
  position: relative;
}

.dev-user-btn {
  display: flex;
  align-items: center;
  border: none;
  background: transparent;
  cursor: pointer;
  padding: 0;
}

.dev-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
}

/* Secondary navigation */
.dev-nav-secondary {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
}

.dev-nav-links {
  display: flex;
  max-width: 1380px;
  margin: 0 auto;
  padding: 0 var(--space-4);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.dev-nav-links::-webkit-scrollbar {
  display: none;
}

.dev-nav-links {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

.dev-nav-link {
  display: flex;
  align-items: center;
  padding: var(--space-3) var(--space-4);
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: all 0.2s ease-in-out;
}

.dev-nav-link:hover {
  color: var(--color-text);
  text-decoration: none;
}

.dev-nav-link.active {
  color: var(--color-text);
  border-bottom-color: var(--color-primary);
}

/* Hamburger menu */
.dev-hamburger {
  display: none;
  flex-direction: column;
  gap: 3px;
  width: 40px;
  height: 40px;
  padding: 12px 8px;
  border: none;
  background: transparent;
  cursor: pointer;
}

.dev-hamburger span {
  width: 100%;
  height: 2px;
  background: var(--color-text);
  border-radius: 1px;
  transition: all 0.3s ease-in-out;
}

/* Mobile overlay */
.dev-mobile-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease-in-out;
}

.dev-mobile-overlay.open {
  opacity: 1;
  visibility: visible;
}

.dev-mobile-menu {
  position: absolute;
  top: 0;
  left: 0;
  width: 280px;
  height: 100vh;
  background: var(--color-bg);
  transform: translateX(-100%);
  transition: transform 0.3s ease-in-out;
  overflow-y: auto;
}

.dev-mobile-overlay.open .dev-mobile-menu {
  transform: translateX(0);
}

.dev-mobile-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.dev-mobile-header h2 {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  margin: 0;
}

.dev-close-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  color: var(--color-text-secondary);
  cursor: pointer;
  border-radius: var(--radius-base);
}

.dev-close-btn:hover {
  background: var(--color-surface);
  color: var(--color-text);
}

.dev-mobile-nav {
  padding: var(--space-4);
}

.dev-mobile-section {
  margin-bottom: var(--space-6);
}

.dev-mobile-section h3 {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text-secondary);
  margin: 0 0 var(--space-3) 0;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.dev-mobile-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  color: var(--color-text);
  text-decoration: none;
  font-size: var(--text-base);
  transition: color 0.2s ease-in-out;
}

.dev-mobile-link:hover {
  color: var(--color-primary);
  text-decoration: none;
}

.dev-circle-icon {
  font-size: var(--text-lg);
}

/* Mobile responsiveness */
@media (max-width: 768px) {
  .dev-hamburger {
    display: flex;
  }
  
  .dev-search {
    display: none;
  }
  
  .dev-nav-secondary {
    display: none;
  }
  
  .dev-create-btn {
    display: none;
  }
}

@media (max-width: 480px) {
  .dev-header-inner {
    padding: 0 var(--space-3);
    gap: var(--space-3);
  }
}

/* ==========================================================================
   DEV COMMUNITY-INSPIRED MAIN LAYOUT
   ========================================================================== */

.dev-main {
  background: var(--color-bg);
}

 .dev-container {
  display: grid;
  grid-template-columns: 156px minmax(0, 1fr); /* right sidebar removed */
  gap: var(--space-6);
  max-width: 1380px;
  margin: 0 auto;
  padding: var(--space-6) var(--space-4);
}

@media (max-width: 1024px) {
  .dev-container {
    grid-template-columns: 144px minmax(0, 1fr);
  }
}

@media (max-width: 768px) {
  .dev-container {
    grid-template-columns: minmax(0, 1fr);
  }
  .dev-sidebar-left { display: none; }
}

.dev-sidebar-left,
.dev-sidebar-right {
  position: sticky;
  top: 104px; /* below header + secondary nav */
  height: calc(100vh - 104px);
  align-self: start;
}

.dev-sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.dev-nav-section h3 {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0 0 var(--space-3) 0;
}

.dev-sidebar-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 8px 10px;
  border-radius: var(--radius-base);
  color: var(--color-text);
  text-decoration: none;
}

.dev-sidebar-link:hover {
  background: var(--color-surface);
  text-decoration: none;
}

.dev-feed {
  min-width: 0;
}

.dev-hero-banner {
  background: linear-gradient(180deg, var(--color-surface) 0%, var(--color-bg) 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  box-shadow: var(--shadow-sm);
}

.dev-hero-content h1 {
  margin: 0 0 var(--space-2) 0;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
}

.dev-hero-content p {
  margin: 0 0 var(--space-4) 0;
  color: var(--color-text-secondary);
}

.dev-hero-actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.dev-feed-header {
  margin-top: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.dev-feed-tabs {
  display: inline-flex;
  align-items: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 4px;
}

.dev-tab {
  padding: 6px 12px;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  background: transparent;
}

.dev-tab.active {
  background: var(--color-bg);
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
}

.dev-feed-section {
  margin-top: var(--space-6);
}

.dev-post-list,
.dev-event-list {
  display: grid;
  gap: var(--space-4);
}

/* Responsive, min-width aware grids */
.dev-post-list { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }

.dev-event-list { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }

/* In right sidebar, force single column and clamp card width */
.dev-sidebar-right .dev-post-list,
.dev-sidebar-right .dev-event-list,
.dev-sidebar-right .grid {
  grid-template-columns: 1fr !important;
  gap: var(--space-3);
}
.dev-sidebar-right .card { width: 100%; }

.dev-widget {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  box-shadow: var(--shadow-sm);
}

/* Filters compact layout (events) */
.filters-compact .filters-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-3);
}
.filters-compact .form-label { font-size: var(--text-xs); }
.filters-compact .form-input, .filters-compact .form-select { padding: 6px 8px; font-size: var(--text-sm); }
.filters-compact .dev-feed-tabs { padding: 2px; }
.filters-compact .dev-tab { padding: 4px 8px; font-size: var(--text-sm); }

/* Frame used by shell page (optional) */
.content-frame {
  width: 100%;
  height: calc(100vh - 180px);
  border: 0;
  background: var(--color-bg);
}

/* Hide header/sidebars/footer when embedded as content-only */
body.shell-embed #header-container,
body.shell-embed [data-include="sidebar"],
body.shell-embed [data-include="right-sidebar"],
body.shell-embed #footer-container { display: none !important; }

body.shell-embed .dev-container { grid-template-columns: minmax(0,1fr); }

.dev-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
}

/* Square tiles, vertically centered content */
.dev-stat {
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  aspect-ratio: 1 / 1;           /* keeps perfect squares */
  min-height: 120px;             /* floor for small screens */
  padding: var(--space-3);
}

.dev-stat-number {
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  line-height: 1.1;
}

.dev-stat-label {
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
}

.dev-cta-widget p {
  color: var(--color-text-secondary);
}

.dev-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* ==========================================================================
   TAGS & BADGES
   ========================================================================== */

.tag {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: all 0.2s ease-in-out;
}

.tag:hover {
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-color: var(--color-primary);
  text-decoration: none;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* Circle badges */
.circle-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  background: var(--circle-bg);
  color: var(--circle-color);
  border: 1px solid var(--circle-color);
}

/* ==========================================================================
   FORMS
   ========================================================================== */

.form-group {
  margin-bottom: var(--space-4);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.form-input {
  width: 100%;
  padding: var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: var(--text-base);
  transition: border-color 0.2s ease-in-out;
}

.form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: var(--focus-ring);
}

.form-input::placeholder {
  color: var(--color-text-secondary);
}

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

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right var(--space-3) center;
  background-size: 16px;
  padding-right: var(--space-8);
}

/* ==========================================================================
   HERO SECTIONS
   ========================================================================== */

.hero {
  padding: var(--space-16) 0;
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-bg) 100%);
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
}

@media (max-width: 1023px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: var(--space-8);
    text-align: center;
  }
}

.hero-title {
  font-size: clamp(var(--text-3xl), 5vw, var(--text-4xl));
  font-weight: var(--font-bold);
  line-height: var(--leading-tight);
  margin-bottom: var(--space-4);
}

.hero-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-6);
  max-width: 60ch;
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

@media (max-width: 639px) {
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
}

.hero-image {
  width: 100%;
  height: auto;
  border-radius: var(--radius-xl);
}

/* ==========================================================================
   UTILITIES
   ========================================================================== */

.loading-state {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-8);
  color: var(--color-text-secondary);
}

.empty-state {
  text-align: center;
  padding: var(--space-8);
  color: var(--color-text-secondary);
}

.divider {
  height: 1px;
  background: var(--color-border);
  margin: var(--space-6) 0;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-6);
}

.section-title {
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  color: var(--color-text);
}

.section-action {
  color: var(--color-primary);
  font-weight: var(--font-medium);
  text-decoration: none;
}

.section-action:hover {
  text-decoration: underline;
}