/* ==========================================================================
   CYBER//FLOW — ULTRA-MODERN FUTURISTIC 3D SWIPER
   Theme: Deep Obsidian Void / Sci-Fi Hologram HUD / Cyberpunk Glassmorphism
   ========================================================================== */

:root {
  /* Core Color Palette */
  --bg-deep: #05070b;
  --bg-surface: rgba(11, 17, 26, 0.82);
  --bg-glass: rgba(14, 21, 33, 0.65);
  
  /* Cyber Accent Colors */
  --neon-cyan: #00f3ff;
  --neon-cyan-glow: rgba(0, 243, 255, 0.55);
  --neon-teal: #00ffd5;
  --neon-teal-glow: rgba(0, 255, 213, 0.55);
  --neon-magenta: #ff007f;
  --neon-magenta-glow: rgba(255, 0, 127, 0.55);
  --neon-blue: #0088ff;
  --neon-blue-glow: rgba(0, 136, 255, 0.55);
  --neon-purple: #9d00ff;
  --neon-purple-glow: rgba(157, 0, 255, 0.55);
  --neon-green: #00ff88;
  
  /* Active Theme Variables (Dynamic via JS) */
  --theme-accent: var(--neon-cyan);
  --theme-glow: var(--neon-cyan-glow);
  
  /* Typography */
  --font-display: 'Orbitron', -apple-system, blinkmacsystemfont, sans-serif;
  --font-mono: 'Rajdhani', monospace, sans-serif;
  --font-sans: 'Inter', -apple-system, blinkmacsystemfont, sans-serif;
  
  /* Card Dimensions */
  --card-width: 580px;
  --card-height: 390px;
  --card-border-radius: 12px;
  
  /* Physics & Transitions */
  --ease-fluid: cubic-bezier(0.16, 1, 0.3, 1);
  --trans-duration: 0.65s;
}

/* Base Reset & Styling */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}

html, body {
  width: 100%;
  min-height: 100vh;
  min-height: 100dvh;
  background-color: var(--bg-deep);
  color: #e2e8f0;
  font-family: var(--font-sans);
  overflow-x: hidden;
  position: relative;
}

/* Background Interactive Canvas */
#cyber-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1;
  pointer-events: none;
  opacity: 0.65;
}

/* Dynamic Ambient Glow */
.ambient-glow {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 900px;
  height: 600px;
  background: radial-gradient(ellipse at center, var(--theme-glow) 0%, rgba(5, 7, 11, 0) 70%);
  filter: blur(80px);
  opacity: 0.28;
  z-index: 2;
  pointer-events: none;
  transition: background 0.8s var(--ease-fluid), opacity 0.8s ease;
}

/* Futuristic Scanline Effect */
.scanline-overlay {
  position: fixed;
  inset: 0;
  background: linear-gradient(
    rgba(18, 16, 16, 0) 50%, 
    rgba(0, 0, 0, 0.3) 50%
  ), linear-gradient(
    90deg,
    rgba(255, 0, 0, 0.02),
    rgba(0, 255, 0, 0.01),
    rgba(0, 0, 255, 0.02)
  );
  background-size: 100% 3px, 6px 100%;
  z-index: 4;
  pointer-events: none;
  opacity: 0.45;
}

/* Radial Vignette for Depth */
.vignette-overlay {
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at center, transparent 35%, rgba(4, 6, 10, 0.88) 100%);
  z-index: 3;
  pointer-events: none;
}

/* App Shell Container */
.app-container {
  position: relative;
  z-index: 10;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.25rem 2rem;
  max-width: 1600px;
  margin: 0 auto;
}

/* ==========================================================================
   HUD HEADER
   ========================================================================== */
.hud-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 0.85rem 1.5rem;
  background: rgba(10, 15, 24, 0.6);
  border: 1px solid rgba(0, 243, 255, 0.18);
  border-radius: 8px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4), inset 0 1px 1px rgba(255, 255, 255, 0.08);
}

/* Brand & Radar */
.hud-brand {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.brand-radar {
  position: relative;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 1px solid var(--theme-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 8px var(--theme-glow);
}

.radar-blip {
  width: 6px;
  height: 6px;
  background: var(--theme-accent);
  border-radius: 50%;
  box-shadow: 0 0 6px var(--theme-accent);
}

.radar-ring {
  position: absolute;
  inset: -3px;
  border: 1px dashed rgba(0, 243, 255, 0.4);
  border-radius: 50%;
  animation: rotateRadar 8s linear infinite;
}

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

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: 2px;
  color: #fff;
  text-shadow: 0 0 10px var(--theme-glow);
}

.brand-title .highlight {
  color: var(--theme-accent);
}

.brand-sub {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  color: #64748b;
}

/* Status Indicator */
.hud-system-status {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 1.2px;
  color: #94a3b8;
  background: rgba(6, 10, 18, 0.7);
  padding: 0.35rem 0.85rem;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.status-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--neon-green);
  box-shadow: 0 0 8px var(--neon-green);
  animation: statusPulse 2s infinite ease-in-out;
}

@keyframes statusPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.highlight-green {
  color: var(--neon-green);
  font-weight: 700;
}

.hud-divider {
  color: #334155;
}

.fps-display {
  color: #38bdf8;
  font-weight: 600;
}

/* Controls Header */
.hud-controls {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.mode-switcher {
  display: flex;
  background: rgba(6, 10, 18, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 6px;
  padding: 2px;
  gap: 2px;
}

.mode-btn {
  background: transparent;
  border: none;
  outline: none;
  color: #64748b;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 1px;
  padding: 0.35rem 0.75rem;
  border-radius: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: all 0.25s ease;
}

.mode-btn:hover {
  color: #e2e8f0;
  background: rgba(255, 255, 255, 0.04);
}

.mode-btn.active {
  background: rgba(0, 243, 255, 0.14);
  color: var(--neon-cyan);
  border: 1px solid rgba(0, 243, 255, 0.35);
  box-shadow: 0 0 10px rgba(0, 243, 255, 0.2);
}

.icon-hud-btn {
  position: relative;
  background: rgba(6, 10, 18, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #94a3b8;
  width: 36px;
  height: 36px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.25s ease;
}

.icon-hud-btn:hover {
  color: var(--neon-cyan);
  border-color: var(--neon-cyan);
  box-shadow: 0 0 12px rgba(0, 243, 255, 0.25);
}

.icon-hud-btn.active {
  color: var(--theme-accent);
  border-color: var(--theme-accent);
  background: rgba(0, 243, 255, 0.08);
}

/* ==========================================================================
   SWIPER 3D SECTION
   ========================================================================== */
.swiper-section {
  position: relative;
  width: 100%;
  margin: auto 0;
  padding: 2rem 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

.swiper-stage-wrapper {
  position: relative;
  width: 100%;
  max-width: 1200px;
  height: 460px;
  display: flex;
  align-items: center;
  justify-content: center;
  perspective: 1300px;
  perspective-origin: 50% 50%;
  overflow: visible;
  touch-action: pan-y pinch-zoom;
  cursor: grab;
}

.swiper-stage-wrapper.dragging {
  cursor: grabbing;
}

.swiper-stage {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  transform-style: preserve-3d;
}

/* ==========================================================================
   SWIPER CARD
   ========================================================================== */
.swiper-card {
  position: absolute;
  width: var(--card-width);
  height: var(--card-height);
  will-change: transform, opacity, filter;
  transition: transform var(--trans-duration) var(--ease-fluid),
              opacity var(--trans-duration) var(--ease-fluid),
              filter var(--trans-duration) var(--ease-fluid);
  pointer-events: none;
}

.swiper-card.is-active {
  pointer-events: auto;
  z-index: 20;
}

.swiper-card.is-adjacent {
  pointer-events: auto;
  cursor: pointer;
}

.card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: var(--card-border-radius);
  background: var(--bg-surface);
  border: 1px solid rgba(255, 255, 255, 0.1);
  overflow: hidden;
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.7), 
              0 0 25px rgba(0, 243, 255, 0.05);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transform-style: preserve-3d;
  transition: box-shadow 0.4s ease, border-color 0.4s ease;
  clip-path: polygon(
    16px 0%, 
    100% 0%, 
    100% calc(100% - 16px), 
    calc(100% - 16px) 100%, 
    0% 100%, 
    0% 16px
  );
}

.swiper-card.is-active .card-inner {
  border-color: rgba(0, 243, 255, 0.4);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8),
              0 0 35px var(--theme-glow),
              inset 0 0 20px rgba(0, 243, 255, 0.08);
}

/* Card Media Wrap */
.card-media-wrap {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.04);
  transition: transform 0.8s var(--ease-fluid);
  filter: brightness(0.85) contrast(1.1);
}

.swiper-card.is-active:hover .card-image {
  transform: scale(1.08);
}

.media-holo-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(0, 243, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 243, 255, 0.06) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
}

.card-glow-edge {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(5, 8, 14, 0.1) 0%,
    rgba(5, 8, 14, 0.4) 30%,
    rgba(5, 8, 14, 0.95) 100%
  );
  pointer-events: none;
}

/* HUD Overlay on Card */
.card-hud {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.5rem 1.8rem;
  z-index: 5;
  transform: translateZ(30px); /* 3D pop */
}

/* Header Badge */
.card-header-badge {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.tech-id {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: #94a3b8;
  background: rgba(6, 10, 18, 0.75);
  padding: 0.3rem 0.65rem;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
}

.spec-chip {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 1.2px;
  padding: 0.3rem 0.65rem;
  border-radius: 4px;
  text-transform: uppercase;
}

.chip-cyan {
  background: rgba(0, 243, 255, 0.15);
  color: var(--neon-cyan);
  border: 1px solid rgba(0, 243, 255, 0.4);
  box-shadow: 0 0 10px rgba(0, 243, 255, 0.25);
}

.chip-teal {
  background: rgba(0, 255, 213, 0.15);
  color: var(--neon-teal);
  border: 1px solid rgba(0, 255, 213, 0.4);
  box-shadow: 0 0 10px rgba(0, 255, 213, 0.25);
}

.chip-magenta {
  background: rgba(255, 0, 127, 0.15);
  color: var(--neon-magenta);
  border: 1px solid rgba(255, 0, 127, 0.4);
  box-shadow: 0 0 10px rgba(255, 0, 127, 0.25);
}

.chip-blue {
  background: rgba(0, 136, 255, 0.15);
  color: var(--neon-blue);
  border: 1px solid rgba(0, 136, 255, 0.4);
  box-shadow: 0 0 10px rgba(0, 136, 255, 0.25);
}

.chip-purple {
  background: rgba(157, 0, 255, 0.15);
  color: var(--neon-purple);
  border: 1px solid rgba(157, 0, 255, 0.4);
  box-shadow: 0 0 10px rgba(157, 0, 255, 0.25);
}

/* Card Body Content */
.card-body-content {
  margin-top: auto;
  margin-bottom: 0.85rem;
}

.card-title {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: 1px;
  color: #fff;
  text-shadow: 0 2px 14px rgba(0, 0, 0, 0.8);
  margin-bottom: 0.45rem;
}

.card-desc {
  font-family: var(--font-sans);
  font-size: 0.88rem;
  line-height: 1.45;
  color: #cbd5e1;
  max-width: 480px;
  margin-bottom: 1rem;
}

/* Metrics Grid */
.card-metrics-grid {
  display: flex;
  gap: 1.25rem;
  padding-top: 0.75rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.metric-item {
  display: flex;
  flex-direction: column;
}

.metric-lbl {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 1.2px;
  color: #64748b;
}

.metric-val {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 1px;
}

.highlight-cyan { color: var(--neon-cyan); }
.highlight-teal { color: var(--neon-teal); }
.highlight-magenta { color: var(--neon-magenta); }
.highlight-blue { color: var(--neon-blue); }
.highlight-purple { color: var(--neon-purple); }

/* Card Footer Action */
.card-footer-action {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.action-btn {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  padding: 0.55rem 1.15rem;
  border-radius: 4px;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.3s ease;
  background: rgba(0, 243, 255, 0.15);
  color: #fff;
  border: 1px solid rgba(0, 243, 255, 0.5);
  box-shadow: 0 0 14px rgba(0, 243, 255, 0.2);
}

.action-btn:hover {
  transform: translateY(-2px);
  background: var(--theme-accent);
  color: #05070b;
  box-shadow: 0 0 20px var(--theme-accent);
}

.cyan-btn { border-color: rgba(0, 243, 255, 0.6); }
.teal-btn { border-color: rgba(0, 255, 213, 0.6); }
.magenta-btn { border-color: rgba(255, 0, 127, 0.6); }
.blue-btn { border-color: rgba(0, 136, 255, 0.6); }
.purple-btn { border-color: rgba(157, 0, 255, 0.6); }

.telemetry-stamp {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: #475569;
  letter-spacing: 1.5px;
}

/* Corner Tech Brackets */
.corner-bracket {
  position: absolute;
  width: 10px;
  height: 10px;
  border: 2px solid var(--theme-accent);
  pointer-events: none;
  opacity: 0.6;
}

.corner-bracket.top-left {
  top: 6px;
  left: 6px;
  border-right: none;
  border-bottom: none;
}

.corner-bracket.top-right {
  top: 6px;
  right: 6px;
  border-left: none;
  border-bottom: none;
}

.corner-bracket.btm-left {
  bottom: 6px;
  left: 6px;
  border-right: none;
  border-top: none;
}

.corner-bracket.btm-right {
  bottom: 6px;
  right: 6px;
  border-left: none;
  border-top: none;
}

/* ==========================================================================
   HUD NAVIGATION CONSOLE
   ========================================================================== */
.hud-nav-console {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2.5rem;
  width: 100%;
  max-width: 900px;
  position: relative;
  z-index: 25;
}

/* Cyber Navigation Arrow Buttons */
.cyber-nav-btn {
  position: relative;
  width: 58px;
  height: 58px;
  background: rgba(10, 15, 24, 0.85);
  border: 1px solid rgba(0, 243, 255, 0.28);
  border-radius: 10px;
  color: #e2e8f0;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  outline: none;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: all 0.3s var(--ease-fluid);
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
}

.cyber-nav-btn:hover {
  border-color: var(--theme-accent);
  color: var(--theme-accent);
  transform: scale(1.08);
  box-shadow: 0 0 24px var(--theme-glow);
}

.cyber-nav-btn:active {
  transform: scale(0.95);
}

.nav-label-corner {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 1px;
  color: #64748b;
  pointer-events: none;
}

.nav-label-corner.top-left { top: 3px; left: 6px; }
.nav-label-corner.top-right { top: 3px; right: 6px; }

/* HUD Tracker Center */
.hud-tracker-center {
  flex: 1;
  max-width: 520px;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.tracker-telemetry {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 1.5px;
}

.tracker-index {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--theme-accent);
  text-shadow: 0 0 10px var(--theme-glow);
}

.tracker-slash {
  color: #475569;
}

.tracker-total {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: #94a3b8;
}

.tracker-divider-dot {
  color: #334155;
  margin: 0 0.25rem;
}

.tracker-active-name {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
  color: #cbd5e1;
  letter-spacing: 1px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Laser Progress Bar */
.laser-progress-track {
  position: relative;
  width: 100%;
  height: 5px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 3px;
  overflow: hidden;
}

.laser-progress-bar {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 20%;
  background: linear-gradient(90deg, transparent, var(--theme-accent));
  box-shadow: 0 0 10px var(--theme-accent);
  border-radius: 3px;
  transition: width 0.3s ease, background 0.5s ease;
}

.laser-head {
  position: absolute;
  right: 0;
  top: -2px;
  width: 9px;
  height: 9px;
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 0 10px #fff, 0 0 20px var(--theme-accent);
}

/* Segmented Pagination Nodes */
.pagination-nodes {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.cyber-node-btn {
  flex: 1;
  height: 8px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 2px;
  cursor: pointer;
  outline: none;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.cyber-node-btn:hover {
  background: rgba(255, 255, 255, 0.25);
}

.cyber-node-btn.active {
  background: var(--theme-accent);
  box-shadow: 0 0 12px var(--theme-glow);
  border-color: #fff;
  height: 9px;
}

/* ==========================================================================
   HUD FOOTER
   ========================================================================== */
.hud-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 1px;
  color: #64748b;
}

.footer-lbl {
  color: #475569;
  margin-right: 0.3rem;
}

.highlight-cyan { color: var(--neon-cyan); }
.highlight-green { color: var(--neon-green); }

/* ==========================================================================
   VIEW MODES PRESETS
   ========================================================================== */

/* 1. 3D COVERFLOW (Default calculated in JS) */

/* 2. HOLO STACK MODE */
.stage-mode-stack .swiper-card {
  /* JS will apply 3D stair-casing cards */
}

/* 3. LINEAR MINIMAL MODE */
.stage-mode-flat .swiper-card {
  /* Flat slick horizontal transform */
}

/* ==========================================================================
   RESPONSIVE DESIGN (Desktop, Tablet, Mobile)
   ========================================================================== */

/* Tablet Optimization (768px - 1024px) */
@media (max-width: 1024px) {
  :root {
    --card-width: 470px;
    --card-height: 360px;
  }

  .app-container {
    padding: 1rem 1.5rem;
  }

  .swiper-stage-wrapper {
    height: 420px;
  }

  .hud-nav-console {
    gap: 1.5rem;
  }

  .card-title {
    font-size: 1.25rem;
  }

  .card-desc {
    font-size: 0.82rem;
    max-width: 380px;
  }
}

/* Mobile Devices (< 768px) */
@media (max-width: 768px) {
  :root {
    --card-width: min(90vw, 390px);
    --card-height: 460px;
  }

  .app-container {
    padding: 0.75rem 0.85rem;
    gap: 1rem;
  }

  .hud-header {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
  }

  .hud-system-status {
    display: none; /* Hide telemetry to save vertical space on small screens */
  }

  .hud-controls {
    justify-content: space-between;
    width: 100%;
  }

  .mode-switcher {
    flex: 1;
    overflow-x: auto;
  }

  .mode-btn {
    padding: 0.3rem 0.5rem;
    font-size: 0.65rem;
  }

  .mode-btn span {
    display: none; /* Icon-only on very compact screens */
  }

  .swiper-stage-wrapper {
    height: 480px;
    perspective: 900px;
  }

  .card-hud {
    padding: 1.15rem 1.25rem;
  }

  .card-title {
    font-size: 1.18rem;
  }

  .card-desc {
    font-size: 0.8rem;
    line-height: 1.35;
    margin-bottom: 0.75rem;
  }

  .card-metrics-grid {
    gap: 0.75rem;
  }

  .metric-lbl {
    font-size: 0.58rem;
  }

  .metric-val {
    font-size: 0.8rem;
  }

  .hud-nav-console {
    gap: 0.85rem;
  }

  .cyber-nav-btn {
    width: 48px;
    height: 48px;
  }

  .nav-label-corner {
    display: none;
  }

  .hide-mobile {
    display: none;
  }

  .hud-footer {
    font-size: 0.62rem;
    flex-direction: column;
    gap: 0.4rem;
    text-align: center;
  }
}

/* Small Foldable / Extra-narrow Phones (< 380px) */
@media (max-width: 380px) {
  :root {
    --card-width: 92vw;
    --card-height: 440px;
  }
  
  .card-metrics-grid {
    flex-wrap: wrap;
  }
}