/* ColorKop - Custom Premium Styling Sheet */

:root {
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;
  
  /* Color Palette - Vibrant Dark Theme with Rich Emerald/Teal accents */
  --bg-deep: #030806;
  --bg-card: rgba(8, 18, 14, 0.6);
  --bg-card-hover: rgba(12, 26, 20, 0.75);
  --border-glass: rgba(255, 255, 255, 0.05);
  --border-glass-focused: rgba(16, 185, 129, 0.4);
  
  --primary-start: #10b981; /* Emerald */
  --primary-end: #059669;   /* Deep Emerald */
  --accent: #14b8a6;        /* Teal */
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #475569;
  
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;
  
  --shadow-glow: 0 0 25px rgba(16, 185, 129, 0.15);
  --shadow-glow-large: 0 0 50px rgba(16, 185, 129, 0.25);
  --shadow-card: 0 12px 40px 0 rgba(0, 0, 0, 0.45);
  
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg-deep);
  color: var(--text-primary);
  font-family: var(--font-body);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* Background Blobs */
.glass-bg-blobs {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(125px);
  opacity: 0.16;
  mix-blend-mode: screen;
  animation: float-around 22s infinite alternate ease-in-out;
}

.blob-1 {
  width: 550px;
  height: 550px;
  background: var(--primary-start);
  top: -10%;
  left: 10%;
  animation-duration: 18s;
}

.blob-2 {
  width: 480px;
  height: 480px;
  background: var(--accent);
  bottom: -5%;
  right: 15%;
  animation-duration: 25s;
}

.blob-3 {
  width: 380px;
  height: 380px;
  background: #3b82f6; /* Soft Blue */
  top: 35%;
  left: 45%;
  animation-duration: 20s;
}

@keyframes float-around {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-30px, 40px) scale(1.08); }
  100% { transform: translate(40px, -30px) scale(0.92); }
}

/* App Container */
.app-container {
  max-width: 1000px;
  width: 100%;
  margin: 0 auto;
  padding: 30px 20px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  justify-content: space-between;
}

/* Header */
.app-header {
  margin-bottom: 25px;
  text-align: center;
}

.logo-area {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.logo-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--primary-start), var(--primary-end));
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  color: #fff;
  box-shadow: var(--shadow-glow);
  transition: var(--transition-normal);
}

.animate-sway {
  animation: sway 6s infinite ease-in-out;
}

@keyframes sway {
  0%, 100% { transform: rotate(-3deg) scale(1); }
  50% { transform: rotate(3deg) scale(1.04); }
}

.logo-text h1 {
  font-family: var(--font-heading);
  font-size: 34px;
  font-weight: 800;
  letter-spacing: -1px;
}

.gradient-text {
  background: linear-gradient(135deg, #e0f2fe 0%, #ccfbf1 30%, #10b981 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.tagline {
  color: var(--text-secondary);
  font-size: 14px;
  margin-top: 3px;
  font-weight: 400;
}

/* Privacy Banner */
.privacy-banner {
  display: flex;
  align-items: center;
  gap: 16px;
  background: rgba(16, 185, 129, 0.03);
  border: 1px solid rgba(16, 185, 129, 0.15);
  border-radius: 16px;
  padding: 14px 20px;
  margin-bottom: 20px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.privacy-icon {
  font-size: 20px;
  color: var(--primary-start);
  flex-shrink: 0;
  text-shadow: 0 0 10px rgba(16, 185, 129, 0.4);
}

.privacy-text {
  font-size: 13.5px;
  color: var(--text-secondary);
  line-height: 1.4;
  text-align: left;
}

.privacy-text strong {
  color: var(--text-primary);
}

/* Vault Card */
.card {
  border-radius: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 24px;
  box-shadow: var(--shadow-card);
  transition: var(--transition-normal);
  position: relative;
}

/* Tabs Header Bar */
.tabs-header-bar {
  display: flex;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  margin-bottom: 24px;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 4px;
}

.tab-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 13.5px;
  padding: 10px 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 2px solid transparent;
  transition: var(--transition-fast);
  white-space: nowrap;
}

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

.tab-btn.active {
  color: var(--primary-start);
  border-bottom-color: var(--primary-start);
  text-shadow: 0 0 10px rgba(16, 185, 129, 0.2);
}

/* Tab contents */
.tab-content {
  display: none;
  opacity: 0;
  transform: translateY(10px);
}

.tab-content.active {
  display: block;
  animation: fade-in-up 0.4s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes fade-in-up {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==========================================
   TAB 1: Palette Generator CSS
   ========================================== */
.palette-row {
  display: flex;
  height: 380px;
  width: 100%;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.04);
  box-shadow: var(--shadow-card);
}

.color-card {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: center;
  padding: 24px 10px;
  position: relative;
  transition: background-color 0.3s ease-out;
  cursor: pointer;
}

.color-card-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  opacity: 0;
  transform: translateY(10px);
  transition: var(--transition-normal);
  z-index: 2;
}

.color-card:hover .color-card-actions {
  opacity: 1;
  transform: translateY(0);
}

.btn-card-action {
  background: rgba(0, 0, 0, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: white;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 13px;
  transition: var(--transition-fast);
}

.btn-card-action:hover {
  background: rgba(0, 0, 0, 0.8);
  transform: scale(1.1);
}

.btn-card-action.locked {
  background: var(--primary-start);
  border-color: var(--primary-start);
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.4);
}

.color-card-hex {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 15px;
  background: rgba(0, 0, 0, 0.5);
  padding: 6px 12px;
  border-radius: 8px;
  color: white;
  margin-top: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.palette-actions-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 20px;
}

.keyboard-hint {
  font-size: 12.5px;
  color: var(--text-secondary);
}

.keyboard-hint kbd {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 3px 6px;
  border-radius: 4px;
  font-family: monospace;
  font-size: 11.5px;
  color: var(--text-primary);
  margin-right: 4px;
}

.palette-buttons {
  display: flex;
  gap: 12px;
}


/* ==========================================
   TAB 2: Image Extractor CSS
   ========================================== */
.extractor-layout-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.extractor-upload-panel {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.drop-zone {
  border: 2px dashed rgba(16, 185, 129, 0.3);
  border-radius: 16px;
  padding: 60px 20px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition-normal);
  background: rgba(16, 185, 129, 0.01);
}

.drop-zone:hover, .drop-zone.dragover {
  border-color: var(--primary-start);
  background: rgba(16, 185, 129, 0.04);
}

.file-input-hidden {
  display: none;
}

.upload-icon-container {
  width: 54px;
  height: 54px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  transition: var(--transition-normal);
}

.drop-zone:hover .upload-icon-container {
  background: rgba(16, 185, 129, 0.1);
  border-color: rgba(16, 185, 129, 0.2);
}

.upload-icon {
  font-size: 22px;
  background: linear-gradient(135deg, #ccfbf1, #10b981);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.drop-zone h3 {
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 6px;
}

.drop-zone p {
  color: var(--text-secondary);
  font-size: 12px;
}

.image-preview-container {
  position: relative;
  width: 100%;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: 16px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.image-preview-container img {
  max-width: 100%;
  max-height: 220px;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.btn-clear-all {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 12.5px;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition-fast);
}

.btn-clear-all:hover {
  color: var(--error);
}

.panel-subtitle-inner {
  font-family: var(--font-heading);
  font-size: 13.5px;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
  border-bottom: 1px solid rgba(255,255,255,0.03);
  padding-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.extractor-results-panel {
  display: flex;
  flex-direction: column;
}

.extractor-results-panel.border-left {
  border-left: 1px solid rgba(255, 255, 255, 0.04);
  padding-left: 24px;
}

.extracted-palette-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  flex-grow: 1;
  min-height: 250px;
  justify-content: center;
}

.extractor-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--text-secondary);
  gap: 10px;
}

.extractor-placeholder i {
  font-size: 36px;
  color: var(--text-muted);
}

.extractor-placeholder p {
  font-size: 13px;
  max-width: 200px;
  line-height: 1.5;
}

/* Extracted list row colors */
.extracted-color-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.01);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: 12px;
  padding: 10px 16px;
  cursor: pointer;
  transition: var(--transition-fast);
}

.extracted-color-card:hover {
  background: rgba(255, 255, 255, 0.03);
  transform: translateX(3px);
}

.extracted-color-preview-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.extracted-color-circle {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.06);
}

.extracted-color-hex {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 13px;
  color: var(--text-primary);
  text-transform: uppercase;
}

.extracted-color-meta {
  font-size: 11px;
  color: var(--text-secondary);
}

.btn-card-copy {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 12px;
}


/* ==========================================
   TAB 3: Contrast Checker CSS
   ========================================== */
.contrast-layout-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 24px;
}

.color-picker-row {
  display: flex;
  gap: 10px;
  align-items: center;
}

.form-color-picker {
  appearance: none;
  -webkit-appearance: none;
  border: none;
  width: 44px;
  height: 38px;
  border-radius: 10px;
  background: none;
  cursor: pointer;
}

.form-color-picker::-webkit-color-swatch-wrapper {
  padding: 0;
}

.form-color-picker::-webkit-color-swatch {
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px;
}

.form-group .form-input {
  flex-grow: 1;
}

.text-uppercase {
  text-transform: uppercase;
}

.ratio-indicator-box {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: 14px;
  padding: 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
}

.ratio-indicator-box span {
  font-family: var(--font-heading);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
}

.ratio-indicator-box strong {
  font-size: 32px;
  font-family: var(--font-heading);
  font-weight: 800;
  color: var(--primary-start);
  text-shadow: 0 0 15px rgba(16, 185, 129, 0.2);
}

.contrast-compliance-panel {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contrast-compliance-panel.border-left {
  border-left: 1px solid rgba(255, 255, 255, 0.04);
  padding-left: 24px;
}

/* Preview Card */
.contrast-preview-card {
  border-radius: 14px;
  padding: 24px;
  box-shadow: var(--shadow-card);
  transition: background-color 0.2s, color 0.2s;
  min-height: 120px;
}

.contrast-preview-card h3 {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.contrast-preview-card p {
  font-size: 13px;
  line-height: 1.5;
}

/* Compliance List */
.compliance-row-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.compliance-item {
  background: rgba(255, 255, 255, 0.01);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: 12px;
  padding: 10px 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.compliance-header {
  display: flex;
  align-items: center;
  gap: 10px;
}

.compliance-header strong {
  font-size: 13px;
  color: var(--text-primary);
  flex-grow: 1;
}

.compliance-badge {
  font-family: var(--font-heading);
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 0.5px;
  padding: 2px 8px;
  border-radius: 4px;
}

.compliance-badge.pass {
  background: rgba(16, 185, 129, 0.1);
  color: var(--success);
  border: 1px solid rgba(16, 185, 129, 0.15);
}

.compliance-badge.fail {
  background: rgba(239, 68, 68, 0.1);
  color: var(--error);
  border: 1px solid rgba(239, 68, 68, 0.15);
}

.compliance-item p {
  font-size: 10.5px;
  color: var(--text-secondary);
}


/* General Buttons */
.btn {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 13px;
  padding: 8px 16px;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: var(--transition-fast);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-start), var(--primary-end));
  color: white;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.2);
}

.btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, #1bd296, #048b61);
  box-shadow: 0 4px 16px rgba(16, 185, 129, 0.3);
  transform: translateY(-1px);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.07);
  color: var(--text-primary);
}

.btn-secondary:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.12);
}

/* Footer info */
.app-footer {
  text-align: center;
  margin-top: 25px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.03);
}

.app-footer p {
  color: var(--text-muted);
  font-size: 11.5px;
}

/* Responsive Explorer Layout */
@media (max-width: 850px) {
  .palette-row {
    flex-direction: column;
    height: auto;
  }
  .color-card {
    height: 90px;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
  }
  .color-card-actions {
    flex-direction: row;
    opacity: 1;
    transform: translateY(0);
  }
  .color-card-hex {
    margin-top: 0;
  }
  .extractor-layout-grid, .contrast-layout-grid {
    grid-template-columns: 1fr;
  }
  .extractor-results-panel.border-left, .contrast-compliance-panel.border-left {
    border-left: none;
    padding-left: 0;
    margin-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    padding-top: 20px;
  }
}