/* ==========================================================================
   WAYAG ARCHIPELAGO - BRAND GUIDELINE & DESIGN SYSTEM
   Modern Light Theme Stylesheet
   ========================================================================== */

/* Design System Variables - Light Theme */
:root {
  --bg: #f8f9fa;
  --card: #ffffff;
  --card-subtle: #f3f4f6;
  --text: #1f2937;
  --muted: #6b7280;
  --accent: #153953;
  --accent-soft: rgba(21, 57, 83, 0.08);
  --accent-karst: #455279;
  --accent-karst-soft: rgba(69, 82, 121, 0.08);
  --accent2: #C4693D;
  --accent2-soft: rgba(196, 105, 61, 0.08);
  --border: #e5e7eb;
}

/* Base & Global Styles */
html, body {
  margin: 0;
  padding: 0;
  background-color: var(--bg);
  color: var(--text);
  font-family: 'Syne', sans-serif;
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
}

*, *::before, *::after {
  box-sizing: inherit;
}

::selection {
  background: var(--accent);
  color: #ffffff;
}

/* Background Atmosphere Glow - Soft Light Gradients */
.bg-canvas {
  background-color: var(--bg);
  background-image: 
    radial-gradient(1200px 600px at 85% -5%, rgba(21, 57, 83, 0.05), transparent 60%),
    radial-gradient(1000px 500px at 10% 10%, rgba(196, 105, 61, 0.04), transparent 55%),
    radial-gradient(800px 400px at 50% 90%, rgba(69, 82, 121, 0.03), transparent 50%);
  background-attachment: fixed;
}

/* Hero Background Wrapper & Mask - Responsive Mobile (Vertical) to Desktop (Smooth Radial Fade) */
.hero-bg-wrapper {
  -webkit-mask-image: linear-gradient(to top, transparent 0%, transparent 20%, black 100%);
  mask-image: linear-gradient(to top, transparent 0%, transparent 20%, black 100%);
}

@media (min-width: 1024px) {
  .hero-bg-wrapper {
    -webkit-mask-image: radial-gradient(ellipse 85% 95% at 100% 50%, black 50%, transparent 95%);
    mask-image: radial-gradient(ellipse 85% 95% at 100% 50%, black 50%, transparent 95%);
  }
}

/* Entrance Animations */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.7s ease forwards;
}

.reveal:nth-child(2) { animation-delay: 0.1s; }
.reveal:nth-child(3) { animation-delay: 0.2s; }
.reveal:nth-child(4) { animation-delay: 0.3s; }
.reveal:nth-child(5) { animation-delay: 0.4s; }
.reveal:nth-child(6) { animation-delay: 0.5s; }

@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Tab Navigation Controls (Segmented Pill Layout) */
.tab-btn {
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: pointer;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--muted);
}

.tab-btn:hover {
  color: var(--text);
  border-color: var(--accent);
  background: var(--accent-soft);
  transform: translateY(-1px);
}

.tab-btn.active {
  color: var(--accent) !important;
  font-weight: 700;
  border-color: var(--accent) !important;
  background: var(--accent-soft) !important;
  box-shadow: 0 2px 8px rgba(21, 57, 83, 0.1);
}

/* Tab Panels */
.tab-content {
  display: none;
  animation: fadeIn 0.4s ease;
}

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

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Interactive Components & Cards */
.gallery-card {
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: pointer;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.02);
}

.gallery-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 32px -8px rgba(21, 57, 83, 0.12), 0 4px 12px rgba(0, 0, 0, 0.04);
}

.color-swatch {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.color-swatch:hover {
  transform: scale(1.06);
}

.value-card {
  transition: all 0.3s ease;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.value-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 12px 24px -6px rgba(0, 0, 0, 0.06);
}

.element-card {
  transition: all 0.3s ease;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.element-card:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
  box-shadow: 0 12px 24px -6px rgba(21, 57, 83, 0.08);
}

.transform-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 24px;
  font-weight: 400;
}

/* Specification Rows */
.spec-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}

.spec-row:last-child {
  border-bottom: none;
}

/* Timeline / Process Step Indicator */
.process-step {
  position: relative;
  padding-left: 40px;
}

.process-step::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 32px;
  bottom: -20px;
  width: 2px;
  background: var(--border);
}

.process-step:last-child::before {
  display: none;
}

.process-dot {
  position: absolute;
  left: 0;
  top: 4px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent-soft);
  border: 2px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 12px;
  color: var(--accent);
}

/* ==========================================================================
   Image Preview & Lightbox Styles
   ========================================================================== */

.previewable-image {
  cursor: zoom-in !important;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), filter 0.3s ease;
}

.gallery-card:hover .previewable-image,
.element-card:hover .previewable-image {
  cursor: zoom-in !important;
}

body.lightbox-open {
  overflow: hidden !important;
  touch-action: none;
}

.lightbox-modal {
  opacity: 0;
  visibility: hidden;
  pointer-events: none !important;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: opacity 0.25s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.25s ease;
}

.lightbox-modal.active {
  opacity: 1 !important;
  visibility: visible !important;
  pointer-events: auto !important;
}

#lightboxImageWrapper.is-zoomed {
  cursor: grab;
}

#lightboxImageWrapper.is-dragging {
  cursor: grabbing;
}

.lightbox-modal button {
  touch-action: manipulation;
}