/* ==========================================================================
   PAGLA TOOL - UI COMPONENTS, 3D HERO & TOOL CARDS
   ========================================================================== */

/* Top Navigation Bar */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--header-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-subtle);
  transition: all var(--transition-normal);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--text-main);
  letter-spacing: -0.03em;
}

.brand-icon-svg {
  width: 36px;
  height: 36px;
  filter: drop-shadow(0 2px 8px rgba(var(--primary-rgb), 0.4));
}

.brand-name-highlight {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-item {
  position: relative;
}

.nav-link {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color var(--transition-fast), background var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: var(--primary);
}

/* Dropdown Menu for Tools */
.dropdown-toggle::after {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  transition: transform var(--transition-fast);
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  min-width: 310px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  z-index: 1010;
  list-style: none;
}

.nav-item:hover .dropdown-menu,
.nav-item:focus-within .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.nav-item:hover .dropdown-toggle::after {
  transform: rotate(225deg) translateY(-1px);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  color: var(--text-main);
  font-weight: 500;
  font-size: 0.9rem;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.dropdown-item:hover {
  background: var(--bg-subtle);
  color: var(--primary);
}

.dropdown-item-badge {
  font-size: 0.72rem;
  font-weight: 700;
  background: rgba(var(--primary-rgb), 0.12);
  color: var(--primary);
  padding: 2px 7px;
  border-radius: var(--radius-full);
  margin-left: auto;
}

/* Header Action Controls */
.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.theme-toggle-btn {
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-main);
  transition: all var(--transition-fast);
}

.theme-toggle-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.theme-toggle-btn svg {
  width: 20px;
  height: 20px;
}

.icon-sun { display: none; }
.icon-moon { display: block; }

[data-theme="dark"] .icon-sun { display: block; }
[data-theme="dark"] .icon-moon { display: none; }

/* Mobile Menu Hamburger */
.mobile-nav-toggle {
  display: none;
  background: transparent;
  border: none;
  width: 44px;
  height: 44px;
  cursor: pointer;
  padding: 10px;
  color: var(--text-main);
}

.hamburger-line {
  display: block;
  width: 24px;
  height: 2px;
  background-color: currentColor;
  margin: 5px auto;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* Mobile Drawer Overlay */
@media (max-width: 960px) {
  .mobile-nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
  }

  .nav-menu {
    position: fixed;
    top: 72px;
    left: 0;
    width: 100%;
    height: calc(100vh - 72px);
    background: var(--bg-page);
    flex-direction: column;
    align-items: flex-start;
    padding: 24px 20px;
    gap: 8px;
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform var(--transition-normal);
  }

  .nav-menu.open {
    transform: translateX(0);
  }

  .nav-item {
    width: 100%;
  }

  .nav-link {
    width: 100%;
    padding: 14px 16px;
    font-size: 1.1rem;
    justify-content: space-between;
  }

  .dropdown-menu {
    position: static;
    transform: none !important;
    opacity: 1;
    visibility: visible;
    width: 100%;
    box-shadow: none;
    border: none;
    background: var(--bg-subtle);
    margin-top: 6px;
    padding: 8px;
    display: none;
  }

  .nav-item.dropdown-active .dropdown-menu {
    display: block;
  }

  .mobile-nav-toggle.open .hamburger-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .mobile-nav-toggle.open .hamburger-line:nth-child(2) {
    opacity: 0;
  }
  .mobile-nav-toggle.open .hamburger-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
}

/* ==========================================================================
   3D HERO SECTION & CANVAS
   ========================================================================== */
.hero-wrapper {
  position: relative;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 40px;
  min-height: 520px;
  padding: 40px 0;
}

@media (max-width: 960px) {
  .hero-wrapper {
    grid-template-columns: 1fr;
    text-align: center;
    padding: 20px 0 40px;
  }
}

.hero-content {
  z-index: 2;
  position: relative;
}

.hero-title {
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 22px;
  letter-spacing: -0.035em;
}

.hero-highlight {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-lead {
  font-size: 1.2rem;
  line-height: 1.65;
  color: var(--text-muted);
  margin-bottom: 32px;
  max-width: 580px;
}

@media (max-width: 960px) {
  .hero-lead {
    margin-left: auto;
    margin-right: auto;
  }
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

@media (max-width: 960px) {
  .hero-cta-group {
    justify-content: center;
  }
}

.hero-stats-row {
  display: flex;
  gap: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
}

@media (max-width: 960px) {
  .hero-stats-row {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .hero-stats-row {
    flex-direction: column;
    gap: 14px;
  }
}

.hero-stat-item h3 {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 2px;
}

.hero-stat-item p {
  font-size: 0.85rem;
  color: var(--text-dim);
  font-weight: 500;
}

/* 3D Visualizer Canvas & Fallback */
.hero-visual-container {
  position: relative;
  width: 100%;
  height: 480px;
  display: flex;
  align-items: center;
  justify-content: center;
}

#hero-3d-canvas {
  width: 100%;
  height: 100%;
  border-radius: var(--radius-lg);
  pointer-events: auto;
}

/* CSS Fallback if WebGL is disabled or on reduced-motion */
.hero-fallback-visual {
  display: none;
  width: 100%;
  height: 100%;
  position: relative;
  align-items: center;
  justify-content: center;
}

.hero-fallback-visual.active {
  display: flex;
}

.floating-fallback-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(40px);
  opacity: 0.6;
  animation: floatOrb 8s infinite alternate ease-in-out;
}

.orb-1 {
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
  top: 15%;
  left: 20%;
}

.orb-2 {
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
  bottom: 15%;
  right: 15%;
  animation-delay: -3s;
}

.hero-badge-card {
  position: relative;
  z-index: 3;
  padding: 30px;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  text-align: center;
  box-shadow: var(--shadow-lg);
  max-width: 320px;
}

@keyframes floatOrb {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(25px, -20px) scale(1.08); }
  100% { transform: translate(-15px, 25px) scale(0.95); }
}

/* ==========================================================================
   TOOL CARDS WITH 3D TILT EFFECT
   ========================================================================== */
.tool-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  position: relative;
  text-decoration: none;
  overflow: hidden;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
  transform-style: preserve-3d;
  perspective: 1000px;
}

.tool-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.tool-card:hover {
  transform: translateY(-6px) scale(1.01);
  border-color: rgba(var(--primary-rgb), 0.4);
  box-shadow: var(--shadow-lg);
}

.tool-card:hover::before {
  opacity: 1;
}

.tool-icon-box {
  width: 58px;
  height: 58px;
  border-radius: var(--radius-md);
  background: rgba(var(--primary-rgb), 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--primary);
  transition: all var(--transition-fast);
}

.tool-card:hover .tool-icon-box {
  background: var(--primary);
  color: #ffffff;
  transform: scale(1.08) rotate(3deg);
}

.tool-icon-box svg {
  width: 28px;
  height: 28px;
}

.tool-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 10px;
}

.tool-card-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  flex-grow: 1;
}

.tool-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-subtle);
  padding-top: 14px;
  margin-top: auto;
  font-size: 0.85rem;
}

.tool-badge-pill {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: var(--bg-subtle);
  color: var(--text-muted);
}

.tool-action-arrow {
  color: var(--primary);
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: transform var(--transition-fast);
}

.tool-card:hover .tool-action-arrow {
  transform: translateX(4px);
}

/* Feature Grid Cards */
.feature-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 30px;
  text-align: left;
  transition: transform var(--transition-normal);
}

.feature-box:hover {
  transform: translateY(-4px);
}

.feature-box-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(var(--accent-rgb), 0.12);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

[data-theme="light"] .feature-box-icon {
  color: var(--primary);
  background: rgba(var(--primary-rgb), 0.1);
}

.feature-box-icon svg {
  width: 24px;
  height: 24px;
}

/* Form Presets Tag Cloud */
.presets-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.preset-chip {
  padding: 8px 14px;
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-main);
  transition: all var(--transition-fast);
}

.preset-chip:hover {
  border-color: var(--primary);
  background: rgba(var(--primary-rgb), 0.08);
}

/* ==========================================================================
   ARTICLE / BLOG & STATIC PAGES CONTENT STYLING
   ========================================================================== */
.content-article {
  max-width: 820px;
  margin: 0 auto;
  line-height: 1.8;
  font-size: 1.075rem;
}

.toc-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
  margin: 30px 0;
}

.toc-title {
  font-weight: 700;
  font-size: 1.15rem;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-main);
}

.toc-list {
  list-style: none !important;
  margin: 0 !important;
  padding: 0 !important;
}

.toc-list li {
  margin-bottom: 8px;
  padding-left: 12px;
  position: relative;
}

.toc-list li::before {
  content: "•";
  color: var(--primary);
  font-weight: bold;
  position: absolute;
  left: 0;
}

.toc-list a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.toc-list a:hover {
  color: var(--primary);
  text-decoration: underline;
}

.content-article h2 {
  margin-top: 45px;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-subtle);
}

.content-article h3 {
  margin-top: 32px;
  margin-bottom: 16px;
}

.content-article ul, .content-article ol {
  margin: 18px 0 24px 28px;
  color: var(--text-muted);
}

.content-article li {
  margin-bottom: 10px;
}

.content-article blockquote {
  border-left: 4px solid var(--primary);
  padding: 16px 22px;
  background: var(--bg-subtle);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 25px 0;
  font-style: italic;
  color: var(--text-muted);
}

/* Callout Box */
.callout {
  padding: 22px 26px;
  border-radius: var(--radius-md);
  margin: 30px 0;
  border: 1px solid;
}

.callout-privacy {
  background: rgba(0, 184, 148, 0.08);
  border-color: rgba(0, 184, 148, 0.3);
  color: var(--text-main);
}

.callout-privacy strong {
  color: var(--success);
}

.callout-info {
  background: rgba(var(--primary-rgb), 0.08);
  border-color: rgba(var(--primary-rgb), 0.25);
}

.callout-warning {
  background: rgba(253, 203, 110, 0.12);
  border-color: rgba(253, 203, 110, 0.35);
}

/* Comparison Table */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  margin: 30px 0;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
}

.styled-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
}

.styled-table th {
  background: var(--bg-subtle);
  color: var(--text-main);
  padding: 14px 18px;
  font-weight: 700;
  border-bottom: 2px solid var(--border-subtle);
}

.styled-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-muted);
}

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

.styled-table tr:hover td {
  background: rgba(var(--primary-rgb), 0.03);
}

/* ==========================================================================
   INTERACTIVE TOOL INTERFACE STYLES (CLIENT-SIDE)
   ========================================================================== */
.tool-app-wrapper {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-lg);
  margin-bottom: 45px;
  position: relative;
}

@media (max-width: 640px) {
  .tool-app-wrapper {
    padding: 20px 16px;
  }
}

.tool-privacy-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(0, 184, 148, 0.08);
  border: 1px solid rgba(0, 184, 148, 0.25);
  border-radius: var(--radius-md);
  padding: 12px 18px;
  margin-bottom: 24px;
  font-size: 0.875rem;
  color: var(--success);
  font-weight: 600;
}

/* Upload Dropzone */
.dropzone {
  border: 2px dashed rgba(var(--primary-rgb), 0.4);
  background: var(--bg-subtle);
  border-radius: var(--radius-lg);
  padding: 44px 20px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
}

.dropzone:hover, .dropzone.dragover {
  border-color: var(--primary);
  background: rgba(var(--primary-rgb), 0.06);
  transform: scale(1.005);
}

.dropzone-icon {
  width: 58px;
  height: 58px;
  margin: 0 auto 16px;
  color: var(--primary);
}

.dropzone-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.dropzone-desc {
  font-size: 0.9rem;
  color: var(--text-dim);
}

.file-input-hidden {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

/* Tool Controls & Settings Grid */
.tool-settings-card {
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
  margin: 24px 0;
}

.controls-row {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.preset-btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.preset-btn {
  padding: 8px 16px;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  color: var(--text-main);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.preset-btn:hover, .preset-btn.active {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

/* Comparison & Preview Area */
.tool-preview-area {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin: 25px 0;
}

@media (max-width: 768px) {
  .tool-preview-area {
    grid-template-columns: 1fr;
  }
}

.preview-box {
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: center;
  position: relative;
}

.preview-box h4 {
  font-size: 0.95rem;
  margin-bottom: 12px;
  color: var(--text-muted);
}

.preview-img-container {
  min-height: 200px;
  max-height: 380px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: repeating-conic-gradient(rgba(148, 163, 184, 0.1) 0% 25%, transparent 0% 50%) 50% / 16px 16px;
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
}

.preview-img {
  max-width: 100%;
  max-height: 360px;
  object-fit: contain;
  box-shadow: 0 4px 14px rgba(0,0,0,0.15);
}

.preview-meta-pill {
  display: inline-flex;
  gap: 12px;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
}

/* Status Indicator */
.status-loading {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-weight: 600;
  font-size: 0.95rem;
  margin: 15px 0;
}

.spinner {
  width: 20px;
  height: 20px;
  border: 3px solid rgba(var(--primary-rgb), 0.2);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* Thumbnail Item List (Multi-image PDF reorder) */
.thumb-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 14px;
  margin: 20px 0;
}

.thumb-item {
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 8px;
  position: relative;
  text-align: center;
}

.thumb-item img {
  width: 100%;
  height: 110px;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.thumb-delete-btn {
  position: absolute;
  top: 4px;
  right: 4px;
  background: rgba(214, 48, 49, 0.85);
  color: #ffffff;
  border: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
}

/* Author Box */
.author-card {
  display: flex;
  align-items: center;
  gap: 20px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin: 45px 0 25px;
}

.author-avatar {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-weight: 800;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.author-info h4 {
  margin-bottom: 4px;
}

.author-info p {
  font-size: 0.925rem;
  color: var(--text-muted);
}