/* ============================================================
   AI Photo Purifier - styles.css
   Premium Artist Art Gallery Theme - Custom Stylesheet
   ============================================================ */

/* --- Local Font Face definitions (Zero Third-Party Dependency) --- */
@font-face {
  font-family: 'Poppins';
  font-style: normal;
  font-weight: 300;
  src: url('assets/fonts/poppins/Poppins-Light.woff2') format('woff2');
}
@font-face {
  font-family: 'Poppins';
  font-style: normal;
  font-weight: 400;
  src: url('assets/fonts/poppins/Poppins-Regular.woff2') format('woff2');
}
@font-face {
  font-family: 'Poppins';
  font-style: normal;
  font-weight: 500;
  src: url('assets/fonts/poppins/Poppins-Medium.woff2') format('woff2');
}
@font-face {
  font-family: 'Poppins';
  font-style: normal;
  font-weight: 600;
  src: url('assets/fonts/poppins/Poppins-SemiBold.woff2') format('woff2');
}
@font-face {
  font-family: 'Poppins';
  font-style: normal;
  font-weight: 700;
  src: url('assets/fonts/poppins/Poppins-Bold.woff2') format('woff2');
}
@font-face {
  font-family: 'Poppins';
  font-style: normal;
  font-weight: 800;
  src: url('assets/fonts/poppins/Poppins-ExtraBold.woff2') format('woff2');
}

@font-face {
  font-family: 'Roboto';
  font-style: normal;
  src: url('assets/fonts/Roboto/Roboto-VariableFont_wdth,wght.ttf') format('truetype');
}

/* --- Theme Color System --- */
:root {
  --color-accent: #AC834D;
  --color-accent-light: #e5b77c;
  --color-secaccent: #0E0E0E;
  --color-thirdaccent: #141414;
  --color-tertiary: #121212;
  
  /* System Mapping */
  --bg-base: #0E0E0E;
  --bg-surface: #141414;
  --bg-card: #121212;
  --bg-input: #1c1c1c;
  --border: rgba(255, 255, 255, 0.08);
  --border-active: #AC834D;
  --text-primary: #ffffff;
  --text-secondary: #bfae9e;
  --text-muted: #777777;
  
  --accent-blue: #AC834D;
  --accent-blue-hover: #8d6737;
  --accent-blue-glow: rgba(172, 131, 77, 0.25);
  --accent-cyan: #e5b77c;
  --accent-green: #AC834D;
  --accent-red: #ea5a47;
  --accent-yellow: #e5b77c;
  --accent-purple: #8d6737;
  
  --tab-active-bg: #AC834D;
  --slider-track: #2c2c2c;
  --slider-thumb: #AC834D;
  --scrollbar-track: #0E0E0E;
  --scrollbar-thumb: #2c2c2c;
}

/* --- Reset & Base --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-base);
  color: var(--text-primary);
  font-family: 'Roboto', 'Segoe UI', system-ui, -apple-system, sans-serif;
  font-size: 14px;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6, .app-title, .cp-title, .queue-title, .canvas-panel-title, .exif-title, .logo-link, .banner-welcome {
  font-family: 'Poppins', sans-serif !important;
}

/* --- Custom Scrollbar --- */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
}
::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-accent);
}

/* ============================================================
   HEADER (Artist Art Gallery Theme Style)
   ============================================================ */
.header-box-upper {
  background-color: var(--color-secaccent);
  background-image: linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
                    linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 80px 80px;
  border-bottom: 1px solid var(--border);
  padding: 20px 40px;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
}

.menu-group {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1300px;
  margin: 0 auto;
  width: 100%;
}

.header-logo .logo-link {
  font-size: 27px;
  font-weight: 700;
  color: #ffffff;
  text-decoration: none;
  text-transform: capitalize;
  letter-spacing: 0.5px;
  transition: color 0.3s ease;
}

.header-logo .logo-link:hover {
  color: var(--color-accent);
}

.header-inner-menu {
  display: flex;
  align-items: center;
  gap: 20px;
}

.header-inner-menu .nav-item {
  font-size: 14px;
  font-weight: 500;
  color: #ffffff;
  text-decoration: none;
  padding: 8px 16px;
  transition: all 0.3s ease;
  text-transform: capitalize;
}

.header-inner-menu .nav-item:hover,
.header-inner-menu .nav-item.active {
  background-color: var(--color-accent);
  color: #ffffff;
}

.header-inner-menu .nav-item.getpro {
  color: var(--color-accent);
  font-weight: 600;
}
.header-inner-menu .nav-item.getpro:hover {
  color: #ffffff;
}

.header-buttons {
  display: flex;
  align-items: center;
  gap: 20px;
}

.header-icon-btn {
  color: #ffffff;
  font-size: 16px;
  text-decoration: none;
  transition: color 0.3s ease;
}

.header-icon-btn:hover {
  color: var(--color-accent);
}

.header-status-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.05);
  padding: 6px 12px;
  border-radius: 0px;
  border: 1px solid var(--border);
  color: #ffffff;
  font-size: 12px;
  font-family: 'Roboto', sans-serif;
}

.header-status-indicator .status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #e6a73c;
  box-shadow: 0 0 8px #e6a73c;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ============================================================
   LAYOUT CHÍNH
   ============================================================ */
.app-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  grid-template-rows: 1fr;
  height: calc(100vh - 78px);
  overflow: hidden;
}

.main-workspace {
  padding: 30px;
  display: flex;
  flex-direction: column;
  gap: 25px;
  overflow-y: auto;
  
  /* Grid pattern in background + world map watermark */
  background-color: var(--color-secaccent);
  background-image: linear-gradient(to right, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
                    linear-gradient(to bottom, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
                    url('assets/images/banner-back.png');
  background-size: 80px 80px, 80px 80px, cover;
  background-position: center;
  background-repeat: no-repeat;
}

/* ============================================================
   HERO BANNER
   ============================================================ */
.slider-main-box {
  width: 100%;
  margin-bottom: 10px;
}

.banner-section {
  padding: 30px 20px;
  text-align: center;
}

.banner-inner-container {
  max-width: 900px;
  margin: 0 auto;
}

.banner-welcome {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 15px;
}

.banner-heading {
  font-size: 36px !important;
  font-weight: 900;
  color: #ffffff;
  line-height: 1.3;
  margin-bottom: 15px;
  text-transform: capitalize;
}

.banner-subheading {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 25px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.banner-buttons .btn-explore {
  display: inline-block;
  font-family: 'Roboto', sans-serif;
  font-size: 13px;
  font-weight: 600;
  color: #ffffff;
  background-color: var(--color-accent);
  text-decoration: none;
  padding: 12px 36px;
  transition: all 0.3s ease;
  border: 1px solid var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.banner-buttons .btn-explore:hover {
  background-color: #ffffff;
  color: #000000;
  border-color: #ffffff;
}

/* ============================================================
   VÙNG DRAG & DROP (Exhibition Frame style)
   ============================================================ */
.dropzone-wrapper {
  position: relative;
}

.dropzone {
  border: 3px dashed var(--color-accent) !important;
  border-radius: 0px !important;
  background: var(--bg-surface) !important;
  min-height: 220px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease !important;
  position: relative;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4) !important;
}

.dropzone::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle, rgba(172, 131, 77, 0.08) 0%, transparent 80%);
  pointer-events: none;
}

.dropzone:hover, .dropzone.drag-over {
  border-color: #ffffff !important;
  background: rgba(172, 131, 77, 0.05) !important;
  box-shadow: 0 15px 40px rgba(172, 131, 77, 0.2) !important;
}

.dropzone-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 35px 20px;
}

.upload-icon-wrap {
  width: 64px;
  height: 64px;
  background: rgba(172, 131, 77, 0.1) !important;
  border: 1px solid rgba(172, 131, 77, 0.3) !important;
  border-radius: 0px !important;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent) !important;
  font-size: 24px;
}

.upload-title {
  font-size: 16px;
  font-weight: 600;
  color: #ffffff;
  text-align: center;
}

.upload-sub {
  font-size: 12px;
  color: var(--text-secondary);
}

.upload-formats {
  display: flex;
  gap: 6px;
  margin-top: 5px;
}

.fmt-tag {
  background: var(--color-secaccent) !important;
  border: 1px solid var(--border) !important;
  color: var(--color-accent) !important;
  font-size: 11px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 0px !important;
  font-family: monospace;
}

/* ============================================================
   WORKSPACE VIEW (CANVAS LAYOUT)
   ============================================================ */
.canvas-layout {
  display: none;
  flex-direction: column;
  gap: 25px;
}

.canvas-layout.visible {
  display: flex;
}

/* ============================================================
   POLAROID BATCH QUEUE CAROUSEL
   ============================================================ */
.gallery-carousel-wrapper {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  padding: 16px 20px;
}

.queue-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  padding-bottom: 10px;
}

.queue-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.queue-actions {
  display: flex;
  gap: 8px;
}

.btn-sm {
  background: var(--bg-input);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 0px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: all 0.15s ease;
}

.btn-sm:hover {
  border-color: var(--color-accent);
  color: #ffffff;
  background: rgba(172, 131, 77, 0.1);
}

.btn-sm.btn-clear:hover {
  border-color: var(--accent-red);
  color: var(--accent-red);
  background: rgba(239, 68, 68, 0.05);
}

.carousel-container-outer {
  position: relative;
  display: flex;
  align-items: center;
  padding: 10px 45px;
}

.queue-list.stackable-carousel-column {
  display: flex;
  gap: 35px;
  overflow-x: auto;
  scroll-behavior: smooth;
  padding: 25px 10px;
  width: 100%;
  scrollbar-width: none;
}

.queue-list.stackable-carousel-column::-webkit-scrollbar {
  display: none;
}

.carousel-nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  transition: all 0.3s ease;
  font-size: 14px;
}

.carousel-nav-btn.btn-prev {
  left: 0;
  background-color: var(--color-accent);
  color: #ffffff;
}
.carousel-nav-btn.btn-prev:hover {
  background-color: #ffffff;
  color: #000000;
}

.carousel-nav-btn.btn-next {
  right: 0;
  background-color: #ffffff;
  color: #000000;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}
.carousel-nav-btn.btn-next:hover {
  background-color: var(--color-accent);
  color: #ffffff;
}

/* Polaroid queue items */
.queue-item {
  position: relative;
  width: 110px !important;
  height: 130px !important;
  border-radius: 0px !important;
  background: #ffffff !important;
  padding: 6px 6px 22px 6px !important;
  box-shadow: 0 8px 20px rgba(0,0,0,0.5) !important;
  cursor: pointer;
  overflow: hidden;
  flex-shrink: 0;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
  border: 1px solid rgba(0,0,0,0.15) !important;
}

/* Alternating tilts */
.queue-item:nth-child(odd) {
  transform: rotate(6deg) !important;
}
.queue-item:nth-child(even) {
  transform: rotate(-6deg) !important;
}

.queue-item:hover,
.queue-item.active {
  transform: scale(1.15) rotate(0deg) !important;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.7) !important;
  z-index: 10;
}

.queue-item.active {
  outline: 2px solid var(--color-accent) !important;
}

.queue-item img {
  width: 100% !important;
  height: calc(100% - 8px) !important;
  object-fit: cover !important;
  display: block;
  border: 1px solid rgba(0,0,0,0.1);
}

.queue-item::after {
  content: 'ARTWORK';
  display: block;
  text-align: center;
  font-family: 'Poppins', sans-serif;
  font-size: 8px;
  color: #555;
  margin-top: 5px;
  letter-spacing: 0.5px;
}

.queue-item-remove {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.7);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 9px;
  border: none;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.25s ease;
  z-index: 5;
}

.queue-item:hover .queue-item-remove {
  opacity: 1;
}

.queue-item-remove:hover {
  background: var(--accent-red) !important;
}

.queue-item-status {
  position: absolute;
  bottom: 2px;
  right: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #ffffff;
  border: 1px solid #777777;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 8px;
  color: #777777;
  z-index: 4;
}

.queue-item.processed .queue-item-status {
  color: var(--color-accent);
  border-color: var(--color-accent);
  background: rgba(172, 131, 77, 0.1);
}

/* ============================================================
   MUSEUM-FRAMED CANVAS PANELS
   ============================================================ */
.canvas-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 25px;
}

.canvas-panel.artwork-frame {
  background: var(--bg-surface) !important;
  border: 1px solid var(--border) !important;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5) !important;
  padding: 22px !important;
  border-radius: 0px !important;
  display: flex;
  flex-direction: column;
}

.plaque-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 14px;
}

.plaque-header .canvas-panel-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: #ffffff;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.canvas-badge {
  font-size: 10px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 0px;
  text-transform: uppercase;
}

.badge-original {
  background: #463b2e;
  color: var(--color-accent-light);
  border: 1px solid rgba(172, 131, 77, 0.25);
}

.badge-output {
  background: var(--color-accent);
  color: #ffffff;
}

.frame-passepartout {
  position: relative;
  flex: 1;
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fcfbf9 !important; /* paper backing */
  padding: 24px !important;
  border: 14px solid #201a15 !important; /* thick wooden framing */
  box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.35), 0 8px 24px rgba(0,0,0,0.4) !important;
  overflow: hidden;
}

.frame-glass {
  position: relative;
  box-shadow: 0 6px 15px rgba(0,0,0,0.2) !important;
  max-width: 100%;
}

.frame-passepartout canvas {
  max-width: 100%;
  max-height: 280px !important;
  object-fit: contain;
  display: block;
  border: 1px solid rgba(0, 0, 0, 0.15);
  background-color: #ffffff;
}

/* Paint overlay brush modes */
.canvas-body.paintable {
  cursor: crosshair;
}

#originalCanvas.paint-mode {
  cursor: none;
}

.canvas-instructions {
  position: absolute;
  bottom: 12px;
  left: 0; right: 0;
  display: flex;
  justify-content: center;
  pointer-events: none;
  z-index: 15;
}

.canvas-instructions span {
  background: rgba(14, 14, 14, 0.85);
  color: #ffffff;
  font-size: 11px;
  font-family: 'Roboto', sans-serif;
  padding: 4px 14px;
  border-radius: 0px;
  border: 1px solid var(--color-accent);
  box-shadow: 0 4px 10px rgba(0,0,0,0.3);
}

.canvas-tip {
  margin-top: 15px;
  padding: 10px 14px;
  font-size: 11px;
  color: var(--text-secondary);
  background: var(--color-secaccent);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'Roboto', sans-serif;
}

/* ============================================================
   EXIF METADATA DETECTOR PANEL
   ============================================================ */
.exif-panel {
  background: var(--bg-surface) !important;
  border: 1px solid var(--border) !important;
  border-radius: 0px !important;
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}

.exif-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background-color: var(--color-secaccent);
}

.exif-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
  color: #ffffff;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.ai-warning {
  display: none;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 600;
  color: var(--accent-red);
  background: rgba(234, 90, 71, 0.1);
  border: 1px solid rgba(234, 90, 71, 0.25);
  padding: 3px 10px;
  border-radius: 0px;
}

.ai-warning.visible {
  display: flex;
  animation: blink-warn 1.5s ease-in-out infinite alternate;
}

@keyframes blink-warn {
  from { opacity: 1; }
  to { opacity: 0.6; }
}

.exif-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border) !important;
  margin: 0;
  padding: 0;
}

.exif-item {
  background: var(--bg-surface) !important;
  padding: 10px 16px;
  border: 1px solid rgba(255,255,255,0.01);
}

.exif-label {
  font-size: 10px;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 3px;
  font-family: 'Poppins', sans-serif;
  font-weight: 500;
}

.exif-value {
  font-size: 12px;
  color: #ffffff;
  font-weight: 500;
  word-break: break-all;
}

.exif-value.danger {
  color: var(--accent-red);
}

.exif-empty {
  padding: 25px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 12px;
}

/* ============================================================
   PROCESS STATS CHIPS
   ============================================================ */
.process-stats {
  display: none;
  padding: 10px 16px;
  border: 1px solid var(--border);
  background: rgba(172, 131, 77, 0.05);
  gap: 15px;
  flex-wrap: wrap;
}

.process-stats.visible {
  display: flex;
}

.stat-chip {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--color-accent-light);
  font-weight: 500;
}

.stat-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
}

/* ============================================================
   GALLERY FOOTER ROW (WordPress theme mockup)
   ============================================================ */
.gallery-footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 15px;
  padding-top: 25px;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
  gap: 15px;
}

.footer-visitor-review {
  display: flex;
  align-items: center;
  gap: 15px;
  background-color: #ffffff;
  padding: 8px 16px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.15);
}

.visitor-review-text {
  font-family: 'Roboto', sans-serif;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-secaccent);
}

.visitor-avatars-img {
  height: 24px;
  width: auto;
  display: block;
}

.footer-follow-us {
  display: flex;
  align-items: center;
  background-color: var(--color-accent);
  box-shadow: 0 4px 10px rgba(0,0,0,0.15);
}

.follow-us-label {
  font-family: 'Roboto', sans-serif;
  font-size: 13px;
  font-weight: 600;
  color: #ffffff;
  padding: 10px 20px;
}

.follow-us-socials {
  display: flex;
  align-items: center;
  background-color: var(--color-thirdaccent);
  padding: 10px 18px;
}

.social-link-btn {
  color: #ffffff;
  margin: 0 8px;
  font-size: 13px;
  transition: all 0.3s ease;
  text-decoration: none;
}

.social-link-btn:hover {
  color: var(--color-accent);
  transform: scale(1.1);
}

/* ============================================================
   CONTROL PANEL SIDEBAR (Museum Catalogue style)
   ============================================================ */
.control-panel {
  background-color: var(--bg-surface);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  height: 100%;
}

.control-panel-header {
  padding: 16px 16px 0;
  background-color: var(--color-secaccent);
  border-bottom: 1px solid var(--border);
}

.cp-title {
  font-size: 12px;
  font-weight: 700;
  color: #ffffff;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 14px;
}

.tab-bar {
  display: flex;
  background: #000000;
  padding: 3px;
  gap: 2px;
  margin-bottom: 3px;
}

.tab-btn {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 600;
  padding: 8px 4px;
  border-radius: 0px;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  white-space: nowrap;
}

.tab-btn:hover {
  color: #ffffff;
  background: rgba(255,255,255,0.03);
}

.tab-btn.active {
  background: var(--color-accent);
  color: #ffffff;
  box-shadow: 0 2px 5px rgba(0,0,0,0.3);
}

.tab-content {
  display: none;
  flex: 1;
  padding: 16px;
  overflow-y: auto;
  flex-direction: column;
  gap: 16px;
}

.tab-content.active {
  display: flex;
}

.cp-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 0px;
}

.cp-section-header {
  padding: 10px 14px;
  background-color: var(--color-secaccent);
  border-bottom: 1px solid var(--border);
  font-size: 11px;
  font-weight: 600;
  color: #ffffff;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.cp-section-body {
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* Switch Toggles */
.switch-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.switch-label {
  font-size: 13px;
  color: #ffffff;
  display: flex;
  flex-direction: column;
  cursor: pointer;
  flex: 1;
}

.switch-desc {
  font-size: 11px;
  color: var(--text-secondary);
  margin-top: 3px;
}

.toggle-wrap {
  position: relative;
  width: 44px;
  height: 22px;
  flex-shrink: 0;
}

.toggle-wrap input[type="checkbox"] {
  opacity: 0;
  width: 0;
  height: 0;
  position: absolute;
}

.toggle-slider {
  position: absolute;
  inset: 0;
  background: #2c2c2c;
  border: 1px solid var(--border);
  border-radius: 22px;
  cursor: pointer;
  transition: all 0.25s ease;
}

.toggle-slider::before {
  content: '';
  position: absolute;
  left: 3px;
  top: 50%;
  transform: translateY(-50%);
  width: 14px;
  height: 14px;
  background: var(--text-secondary);
  border-radius: 50%;
  transition: all 0.25s ease;
}

.toggle-wrap input:checked + .toggle-slider {
  background: var(--color-accent);
  border-color: var(--color-accent);
}

.toggle-wrap input:checked + .toggle-slider::before {
  left: calc(100% - 17px);
  background: #ffffff;
}

/* Dropdowns */
.cp-select {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  color: #ffffff;
  font-size: 13px;
  padding: 8px 12px;
  border-radius: 0px;
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23AC834D' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
  transition: border-color 0.2s;
}

.cp-select:focus {
  outline: none;
  border-color: var(--color-accent);
}

.cp-select:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

/* Sliders */
.slider-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.slider-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.slider-label {
  font-size: 12px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.slider-value {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-accent);
  min-width: 32px;
  text-align: right;
}

.cp-range {
  width: 100%;
  height: 4px;
  appearance: none;
  -webkit-appearance: none;
  background: var(--slider-track);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}

.cp-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  background: var(--color-accent);
  border-radius: 50%;
  cursor: pointer;
  transition: transform 0.15s ease;
}

.cp-range::-webkit-slider-thumb:hover {
  transform: scale(1.25);
}

.cp-range::-moz-range-thumb {
  width: 14px;
  height: 14px;
  background: var(--color-accent);
  border-radius: 50%;
  border: none;
  cursor: pointer;
}

/* Brush preview color and width */
.brush-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brush-preview {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(239, 68, 68, 0.6);
  border: 1px solid rgba(239, 68, 68, 0.8);
  flex-shrink: 0;
  box-shadow: 0 0 5px rgba(0,0,0,0.5);
  transition: all 0.1s ease;
}

/* ============================================================
   ACTION BUTTON BAR
   ============================================================ */
.action-bar {
  padding: 16px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--color-secaccent);
  margin-top: auto;
}

.btn {
  width: 100%;
  padding: 12px 16px;
  border-radius: 0px;
  border: none;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.25s ease;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  pointer-events: none;
}

.btn-primary {
  background: var(--color-accent);
  color: #ffffff;
  border: 1px solid var(--color-accent);
}

.btn-primary:hover:not(:disabled) {
  background: #ffffff;
  color: #000000;
  border-color: #ffffff;
}

.btn-success {
  background: #ffffff;
  color: #000000;
  border: 1px solid #ffffff;
}

.btn-success:hover:not(:disabled) {
  background: var(--color-accent);
  color: #ffffff;
  border-color: var(--color-accent);
}

/* Loading animations */
.btn-primary.loading {
  position: relative;
  pointer-events: none;
  color: transparent;
}

.btn-primary.loading::after {
  content: '';
  position: absolute;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

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

/* ============================================================
   TOAST SYSTEM
   ============================================================ */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 999;
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 0px;
  padding: 12px 18px;
  font-size: 13px;
  color: #ffffff;
  box-shadow: 0 8px 24px rgba(0,0,0,0.5);
  animation: slideInUp 0.35s ease;
  pointer-events: auto;
  min-width: 280px;
  max-width: 380px;
}

.toast.success { border-left: 4px solid var(--color-accent); }
.toast.error { border-left: 4px solid var(--accent-red); }
.toast.info { border-left: 4px solid var(--color-accent-light); }
.toast.warning { border-left: 4px solid #e6a73c; }

.toast-icon { font-size: 16px; flex-shrink: 0; }
.toast.success .toast-icon { color: var(--color-accent); }
.toast.error .toast-icon { color: var(--accent-red); }
.toast.info .toast-icon { color: var(--color-accent-light); }
.toast.warning .toast-icon { color: #e6a73c; }

@keyframes slideInUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

@keyframes fadeOut {
  to { opacity: 0; transform: translateY(10px); }
}

/* ============================================================
   PROGRESS INDICATOR
   ============================================================ */
.progress-bar-wrap {
  display: none;
  width: 100%;
  height: 4px;
  background: #2c2c2c;
  overflow: hidden;
}

.progress-bar-wrap.visible { display: block; }

.progress-bar-fill {
  height: 100%;
  background: var(--color-accent);
  width: 0%;
  transition: width 0.2s ease;
}

/* ============================================================
   UTILITIES & MEDIA QUERIES
   ============================================================ */
.hidden { display: none !important; }

.cp-divider {
  height: 1px;
  background: var(--border);
  margin: 4px 0;
}

.info-chip {
  display: block;
  font-size: 11px;
  color: var(--text-secondary);
  background: var(--color-secaccent);
  border: 1px solid var(--border);
  padding: 10px;
  border-radius: 0px;
  line-height: 1.5;
}

.tag-ai {
  background: rgba(172, 131, 77, 0.15);
  color: var(--color-accent-light);
  border: 1px solid rgba(172, 131, 77, 0.3);
  font-size: 10px;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 0px;
}

/* Tab scroll overflow */
.tab-content {
  scrollbar-width: thin;
  scrollbar-color: var(--scrollbar-thumb) transparent;
}

/* Responsive grid layout */
@media (max-width: 1000px) {
  .app-layout {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr;
    height: auto;
    overflow: visible;
  }

  .control-panel {
    border-left: none;
    border-top: 1px solid var(--border);
    height: auto;
    overflow: visible;
  }

  .tab-content {
    max-height: 320px;
  }

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

/* ============================================================
   LANDING PAGE (LensGhost Welcome View)
   ============================================================ */
.landing-page {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 20px;
  display: flex;
  flex-direction: column;
  gap: 40px;
  animation: fadeIn 0.5s ease;
}

.landing-hero {
  text-align: center;
  padding: 20px 10px;
}

.landing-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  margin-top: 10px;
  margin-bottom: 40px;
}

.feature-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  padding: 30px;
  transition: all 0.3s ease;
  position: relative;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}

.feature-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-5px);
  box-shadow: 0 12px 30px rgba(172, 131, 77, 0.15);
}

.feature-icon {
  font-size: 28px;
  color: var(--color-accent);
  margin-bottom: 20px;
}

.feature-title {
  font-family: 'Poppins', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 12px;
}

.feature-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@media (max-width: 768px) {
  .landing-features {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   SEO ARTICLES & BLOG SECTION
   ============================================================ */
.landing-seo-articles {
  margin-top: 20px;
  margin-bottom: 50px;
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.seo-section-title {
  font-family: 'Poppins', sans-serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--color-accent);
  text-align: center;
  margin-bottom: 10px;
  letter-spacing: 0.5px;
}

.seo-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.seo-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  padding: 30px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  transition: border-color 0.3s ease;
}

.seo-card:hover {
  border-color: rgba(172, 131, 77, 0.4);
}

.seo-card-title {
  font-family: 'Poppins', sans-serif;
  font-size: 15px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 15px;
  display: flex;
  align-items: center;
  gap: 10px;
  letter-spacing: 0.2px;
}

.seo-card-title i {
  color: var(--color-accent);
  font-size: 16px;
}

.seo-card-text {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.seo-card-text p {
  margin-bottom: 12px;
}

.seo-card-text p:last-child {
  margin-bottom: 0;
}

.seo-card-text a {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: 1px dashed var(--color-accent);
  font-weight: 500;
  transition: all 0.2s ease;
}

.seo-card-text a:hover {
  color: var(--color-accent-light);
  border-bottom-style: solid;
}

/* Special Author card */
.author-highlight-card {
  grid-column: span 2;
  background: linear-gradient(135deg, rgba(172, 131, 77, 0.05) 0%, rgba(20, 20, 20, 0.8) 100%);
  border-left: 3px solid var(--color-accent);
}

@media (max-width: 992px) {
  .seo-grid {
    grid-template-columns: 1fr;
  }
  .author-highlight-card {
    grid-column: span 1;
  }
}