/* ==========================================================================
   ZeBeyond-Inspired Modern Engineering Platform Design System
   Sazzad Hissain Khan — Associate Software Architect & AI Innovator
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600;700&family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  /* Dark-first obsidian luxury palette */
  --bg-color: #07090e;
  --bg-gradient: radial-gradient(circle at 50% 0%, rgba(16, 185, 129, 0.08) 0%, transparent 60%),
                 radial-gradient(circle at 100% 20%, rgba(6, 182, 212, 0.05) 0%, transparent 50%),
                 radial-gradient(circle at 0% 50%, rgba(99, 102, 241, 0.04) 0%, transparent 40%);
  --bg-secondary: #0c1017;
  --paper-bg: #0f141f;
  --card-bg: rgba(15, 20, 31, 0.65);
  --card-hover-bg: rgba(22, 29, 45, 0.85);
  --card-border: rgba(255, 255, 255, 0.08);
  --card-border-hover: rgba(16, 185, 129, 0.4);
  --card-inner-glow: inset 0 1px 0 0 rgba(255, 255, 255, 0.08);
  --text-color: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent-color: #10b981;
  --accent-hover: #34d399;
  --accent-glow: rgba(16, 185, 129, 0.25);
  --accent-cyan: #06b6d4;
  --accent-indigo: #6366f1;
  --tag-bg: rgba(255, 255, 255, 0.04);
  --tag-border: rgba(255, 255, 255, 0.08);
  --tag-text: #cbd5e1;
  --navbar-bg: rgba(7, 9, 14, 0.25);
  --navbar-border: rgba(255, 255, 255, 0.10);
  --navbar-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  --header-bg: transparent;
  --shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 35px -5px rgba(16, 185, 129, 0.25);
  --font-sans: 'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, monospace;
}

[data-theme="light"] {
  --bg-color: #f8fafc;
  --bg-gradient: radial-gradient(circle at 50% 0%, rgba(16, 185, 129, 0.05) 0%, transparent 60%),
                 radial-gradient(circle at 100% 20%, rgba(6, 182, 212, 0.04) 0%, transparent 50%);
  --bg-secondary: #f1f5f9;
  --paper-bg: #ffffff;
  --card-bg: rgba(255, 255, 255, 0.85);
  --card-hover-bg: #ffffff;
  --card-border: rgba(226, 232, 240, 0.9);
  --card-border-hover: rgba(16, 185, 129, 0.5);
  --card-inner-glow: inset 0 1px 0 0 rgba(255, 255, 255, 0.8);
  --text-color: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --accent-color: #059669;
  --accent-hover: #10b981;
  --accent-glow: rgba(5, 150, 105, 0.15);
  --accent-cyan: #0284c7;
  --accent-indigo: #4f46e5;
  --tag-bg: #f1f5f9;
  --tag-border: #e2e8f0;
  --tag-text: #334155;
  --navbar-bg: rgba(255, 255, 255, 0.30);
  --navbar-border: rgba(0, 0, 0, 0.08);
  --navbar-shadow: 0 8px 30px -8px rgba(0, 0, 0, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.9);
  --header-bg: transparent;
  --shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.08);
  --shadow-glow: 0 0 25px -5px rgba(5, 150, 105, 0.15);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-color);
  background-image: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text-color);
  margin: 0;
  padding: 0;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  position: relative;
}

a {
  color: var(--accent-color);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--accent-hover);
}

/* Subtle Engineering Grid Overlay */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-image: linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
  z-index: 0;
}

[data-theme="light"] body::before {
  background-image: linear-gradient(rgba(0, 0, 0, 0.025) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(0, 0, 0, 0.025) 1px, transparent 1px);
}

.container {
  max-width: 1160px;
  margin: 2rem auto 5rem auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
}

/* ==========================================================================
   Floating Frosted Glass Navbar
   ========================================================================== */
.navbar-wrapper {
  position: sticky;
  top: 1rem;
  z-index: 100;
  max-width: 1160px;
  margin: 1rem auto 0 auto;
  padding: 0 1.5rem;
}

.navbar-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--navbar-bg);
  backdrop-filter: blur(8px) saturate(140%);
  -webkit-backdrop-filter: blur(8px) saturate(140%);
  border: 1px solid var(--navbar-border);
  box-shadow: var(--navbar-shadow);
  border-radius: 9999px;
  padding: 0.65rem 1.25rem;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-color);
  z-index: 102;
}

.navbar-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 2px solid var(--accent-color);
  box-shadow: 0 0 12px var(--accent-glow);
  object-fit: cover;
}

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

.navbar-name {
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: -0.01em;
  color: var(--text-color);
  line-height: 1.2;
}

.navbar-badge {
  font-size: 0.7rem;
  color: var(--accent-color);
  font-family: var(--font-mono);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.navbar-links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.45rem 0.9rem;
  border-radius: 9999px;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--text-color);
  background: var(--tag-bg);
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  z-index: 102;
}

.theme-toggle-btn {
  background: var(--tag-bg);
  border: 1px solid var(--card-border);
  color: var(--text-color);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1rem;
  transition: all 0.2s ease;
  padding: 0;
}

.theme-toggle-btn:hover {
  border-color: var(--accent-color);
  transform: rotate(15deg);
}

/* Mobile Hamburger Menu Toggle Button */
.mobile-menu-btn {
  display: none;
  background: var(--tag-bg);
  border: 1px solid var(--card-border);
  color: var(--text-color);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
  padding: 0;
  transition: all 0.25s ease;
}

.mobile-menu-btn:hover {
  border-color: var(--accent-color);
  background: rgba(16, 185, 129, 0.1);
}

.hamburger-line {
  display: block;
  width: 16px;
  height: 2px;
  background-color: var(--text-color);
  border-radius: 2px;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.2s ease;
}

.navbar-container.is-open .hamburger-line:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.navbar-container.is-open .hamburger-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.navbar-container.is-open .hamburger-line:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

@media (max-width: 768px) {
  .navbar-wrapper {
    top: 0.75rem;
    padding: 0 1rem;
    margin: 0.5rem auto 0 auto;
  }

  .navbar-container {
    border-radius: 9999px;
    padding: 0.5rem 0.85rem 0.5rem 1rem;
  }

  .mobile-menu-btn {
    display: inline-flex;
  }

  .navbar-links {
    display: none;
    position: absolute;
    top: calc(100% + 0.6rem);
    left: 0;
    right: 0;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 0.35rem;
    background: rgba(10, 15, 26, 0.94);
    backdrop-filter: blur(32px) saturate(200%);
    -webkit-backdrop-filter: blur(32px) saturate(200%);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 20px;
    padding: 0.75rem;
    box-shadow: 0 24px 50px -10px rgba(0, 0, 0, 0.8), inset 0 1px 0 rgba(255, 255, 255, 0.15);
    z-index: 101;
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity 0.25s ease, transform 0.25s ease;
    pointer-events: none;
  }

  [data-theme="light"] .navbar-links {
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 16px 36px -8px rgba(0, 0, 0, 0.15), inset 0 1px 0 rgba(255, 255, 255, 0.9);
  }

  .navbar-container.is-open .navbar-links {
    display: flex;
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .nav-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    font-size: 0.92rem;
    font-weight: 500;
    border-radius: 12px;
    color: var(--text-color);
    background: transparent;
  }

  .nav-link:hover, .nav-link:active {
    background: rgba(16, 185, 129, 0.1);
    color: var(--accent-color);
  }

  .nav-link::after {
    content: "→";
    font-size: 0.85rem;
    color: var(--accent-color);
    opacity: 0.7;
    transition: transform 0.2s ease;
  }

  .nav-link:hover::after {
    transform: translateX(3px);
  }

  .container {
    padding: 0 1rem;
    margin: 1.5rem auto 3.5rem auto;
  }

  h1 {
    font-size: 2.15rem;
    line-height: 1.2;
  }

  .status-pill, .hero-status-pill {
    font-size: 0.65rem !important;
    padding: 0.35rem 0.65rem !important;
    white-space: normal !important;
    text-align: left !important;
    max-width: 100% !important;
    display: inline-flex !important;
    flex-wrap: wrap !important;
    letter-spacing: 0.3px !important;
    line-height: 1.4 !important;
  }
}

/* ==========================================================================
   Typography & Accents
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-color);
  font-weight: 700;
  letter-spacing: -0.025em;
  margin-top: 0;
}

h1 {
  font-size: 2.8rem;
  line-height: 1.15;
}

h2 {
  font-size: 1.85rem;
  line-height: 1.25;
}

h3 {
  font-size: 1.35rem;
  line-height: 1.3;
}

.gradient-text {
  background: linear-gradient(135deg, #ffffff 0%, #cbd5e1 50%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

[data-theme="light"] .gradient-text {
  background: linear-gradient(135deg, #0f172a 0%, #334155 70%, #059669 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gradient-accent-text {
  background: linear-gradient(135deg, #34d399 0%, #10b981 50%, #06b6d4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-mono {
  font-family: var(--font-mono);
}

/* ==========================================================================
   Pills & Glowing Status Badges
   ========================================================================== */
.status-pill, .hero-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #34d399;
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: 0.3px;
  box-shadow: 0 0 15px rgba(16, 185, 129, 0.15);
  white-space: nowrap;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: #34d399;
  box-shadow: 0 0 8px #34d399;
  animation: pulse-dot 2s infinite;
  flex-shrink: 0;
}

@keyframes pulse-dot {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(52, 211, 153, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(52, 211, 153, 0); }
}

.badge-status {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 0.22rem 0.65rem;
  border-radius: 9999px;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-mono);
  white-space: nowrap !important;
  flex-shrink: 0;
  line-height: 1.2;
}

.badge-status-release {
  background: rgba(16, 185, 129, 0.12);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-status-beta {
  background: rgba(6, 182, 212, 0.12);
  color: #22d3ee;
  border: 1px solid rgba(6, 182, 212, 0.3);
}

.badge-status-wip {
  background: rgba(245, 158, 11, 0.12);
  color: #fbbf24;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-status-proto {
  background: rgba(168, 85, 247, 0.12);
  color: #c084fc;
  border: 1px solid rgba(168, 85, 247, 0.3);
}

.badge-status-source {
  background: rgba(99, 102, 241, 0.12);
  color: #818cf8;
  border: 1px solid rgba(99, 102, 241, 0.3);
}

.badge-status-live {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.35);
}

.catalog-search-bar {
  width: 100%;
  padding: 0.85rem 1.15rem;
  border: 1px solid var(--card-border);
  border-radius: 12px;
  font-size: 0.95rem;
  background: var(--tag-bg);
  color: var(--text-color);
  margin-bottom: 1.25rem;
  outline: none;
  font-family: var(--font-sans);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.catalog-search-bar:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

/* ==========================================================================
   Modern Buttons (Glow, Glass, Ghost)
   ========================================================================== */
.btn-glow, .btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: #ffffff !important;
  padding: 0.75rem 1.65rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.92rem;
  text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 20px rgba(16, 185, 129, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.3);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: pointer;
}

.btn-glow:hover, .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(16, 185, 129, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.4);
  color: #ffffff !important;
  text-decoration: none;
}

.btn-glass, .btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: var(--tag-bg);
  backdrop-filter: blur(12px);
  color: var(--text-color) !important;
  padding: 0.75rem 1.5rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.92rem;
  text-decoration: none;
  border: 1px solid var(--card-border);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
  transition: all 0.25s ease;
  cursor: pointer;
}

.btn-glass:hover, .btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--accent-color);
  color: var(--text-color) !important;
  transform: translateY(-2px);
  text-decoration: none;
}
  transform: translateY(-2px);
}

.btn-card {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.45rem 1rem;
  border-radius: 8px;
  font-size: 0.82rem;
  font-weight: 600;
  font-family: var(--font-sans);
  text-decoration: none;
  background: var(--tag-bg);
  color: var(--text-color) !important;
  border: 1px solid var(--card-border);
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-card:hover {
  background: var(--text-color);
  color: var(--bg-color) !important;
  border-color: var(--text-color);
  text-decoration: none;
}

.btn-sm {
  padding: 0.38rem 0.85rem;
  font-size: 0.78rem;
}

.btn-placeholder {
  opacity: 0.85;
  border-style: dashed;
  cursor: pointer;
  position: relative;
}

/* ==========================================================================
   Glassmorphic Cards & Bento System
   ========================================================================== */
.card {
  background: var(--card-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow), var(--card-inner-glow);
  border-radius: 16px;
  padding: 2rem;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), 
              border-color 0.25s ease, 
              box-shadow 0.25s ease;
  position: relative;
  overflow: hidden;
}

.card:hover {
  border-color: var(--card-border-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow), 0 0 30px -10px var(--accent-glow);
}

.bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1.5rem;
  margin: 2.5rem 0;
}

.bento-grid > * {
  grid-column: span 4;
}

.bento-col-12 { grid-column: span 12 !important; }
.bento-col-8  { grid-column: span 8 !important; }
.bento-col-7  { grid-column: span 7 !important; }
.bento-col-6  { grid-column: span 6 !important; }
.bento-col-5  { grid-column: span 5 !important; }
.bento-col-4  { grid-column: span 4 !important; }

.bento-card {
  background: var(--card-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow), var(--card-inner-glow);
  border-radius: 16px;
  padding: 1.75rem;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
}

.bento-card:hover {
  border-color: var(--card-border-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow), 0 0 30px -10px var(--accent-glow);
}

@media (max-width: 900px) {
  .bento-grid > * {
    grid-column: span 12 !important;
  }
}

/* ==========================================================================
   Engineering Telemetry Metrics Strip
   ========================================================================== */
.metrics-strip, .hero-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin: 3rem 0;
}

@media (max-width: 992px) {
  .metrics-strip, .hero-metrics {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 520px) {
  .metrics-strip, .hero-metrics {
    grid-template-columns: 1fr;
  }
}

.metric-card {
  background: var(--card-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 1.5rem;
  text-align: left;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.metric-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
  opacity: 0.5;
}

.metric-value {
  font-size: 2.3rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-color);
  font-family: var(--font-mono);
  line-height: 1.1;
  margin-bottom: 0.35rem;
}

.metric-label {
  font-size: 0.85rem;
  color: var(--accent-color);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-family: var(--font-mono);
  margin-bottom: 0.25rem;
}

.metric-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.4;
  margin: 0;
}

/* ==========================================================================
   Interactive Keyboard & Phone Simulation
   ========================================================================== */
body.sim-fullscreen-active {
  overflow: hidden !important;
}

.sim-ctrl-btn {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text-secondary);
  border-radius: 6px;
  padding: 3px 8px;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  transition: all 0.15s ease;
  user-select: none;
}

.sim-ctrl-btn:hover, .sim-ctrl-btn:active {
  background: rgba(255, 255, 255, 0.15);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.25);
}

.sim-expand-btn {
  background: rgba(16, 185, 129, 0.12);
  border-color: rgba(16, 185, 129, 0.35);
  color: #34d399;
  font-weight: 600;
}

.sim-expand-btn:hover, .sim-expand-btn:active {
  background: rgba(16, 185, 129, 0.25);
  color: #ffffff;
  border-color: var(--accent-color);
}

.btn-fullscreen-trigger {
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  color: var(--text-secondary);
  font-size: 0.8rem;
  padding: 0.45rem 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}

.btn-fullscreen-trigger:hover {
  background: rgba(16, 185, 129, 0.12);
  border-color: rgba(16, 185, 129, 0.4);
  color: #ffffff;
  transform: translateY(-1px);
}

.phone-mockup-frame {
  max-width: 580px;
  margin: 0 auto;
  background: linear-gradient(180deg, #18202f 0%, #0d121c 100%);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 28px;
  padding: 1.25rem;
  box-shadow: 0 30px 60px -15px rgba(0, 0, 0, 0.8), 0 0 40px -10px var(--accent-glow);
  position: relative;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.phone-mockup-frame.is-fullscreen {
  position: fixed !important;
  inset: 0 !important;
  top: 0 !important;
  left: 0 !important;
  right: 0 !important;
  bottom: 0 !important;
  width: 100vw !important;
  width: 100dvw !important;
  height: 100vh !important;
  height: 100dvh !important;
  max-width: none !important;
  margin: 0 !important;
  padding: 0 !important;
  border-radius: 0 !important;
  border: none !important;
  z-index: 999999 !important;
  background: #090c13 !important;
  box-shadow: none !important;
  display: flex !important;
  flex-direction: column !important;
}

.phone-mockup-frame.is-fullscreen .phone-screen {
  border-radius: 0 !important;
  border: none !important;
  width: 100% !important;
  height: 100% !important;
  display: flex !important;
  flex-direction: column !important;
  justify-content: space-between !important;
}

.phone-mockup-frame.is-fullscreen .phone-screen-topbar {
  padding-top: max(0.6rem, env(safe-area-inset-top)) !important;
  padding-left: max(1rem, env(safe-area-inset-left)) !important;
  padding-right: max(1rem, env(safe-area-inset-right)) !important;
  background: #0d121c !important;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08) !important;
}

.phone-mockup-frame.is-fullscreen .chat-preview-area {
  flex: 1 !important;
  min-height: 0 !important;
  overflow-y: auto !important;
  display: flex !important;
  flex-direction: column !important;
  justify-content: flex-end !important;
  padding: 1rem 1rem 0.75rem 1rem !important;
}

.phone-mockup-frame.is-fullscreen .floating-chip {
  display: none !important;
}

.phone-mockup-frame.is-fullscreen .virtual-keyboard {
  padding-bottom: max(1rem, env(safe-area-inset-bottom)) !important;
  padding-left: max(0.5rem, env(safe-area-inset-left)) !important;
  padding-right: max(0.5rem, env(safe-area-inset-right)) !important;
  background: #0f1422 !important;
}

.phone-mockup-frame.is-fullscreen .kb-key {
  height: clamp(42px, 5.8vh, 52px) !important;
}

.phone-screen {
  background: #090c13;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.chat-preview-area {
  padding: 1.5rem 1.25rem 2rem 1.25rem;
  background: linear-gradient(180deg, rgba(16, 185, 129, 0.05) 0%, transparent 100%);
}

.chat-bubble-user {
  background: #1e293b;
  color: #f8fafc;
  border-radius: 16px 16px 4px 16px;
  padding: 0.85rem 1.1rem;
  max-width: 85%;
  margin-left: auto;
  font-size: 0.95rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.chat-input-sim {
  margin-top: 1.25rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--accent-color);
  border-radius: 10px;
  padding: 0.65rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: #34d399;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.cursor-blink {
  animation: blink 1s infinite;
  color: #34d399;
  font-weight: bold;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.keyboard-suggestions-bar {
  background: #131926;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 0.6rem 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.keyboard-suggestions-bar::-webkit-scrollbar {
  display: none;
}

.suggestion-chip {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-color);
  padding: 0.35rem 0.9rem;
  border-radius: 6px;
  font-size: 0.95rem;
  font-weight: 600;
  white-space: nowrap;
  cursor: pointer;
  transition: all 0.15s ease;
}

.suggestion-chip.active {
  background: var(--accent-color);
  color: #ffffff;
  border-color: var(--accent-color);
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.4);
}

.virtual-keyboard {
  background: #0f1422;
  padding: 0.75rem 0.5rem 1rem 0.5rem;
}

.kb-row {
  display: flex;
  justify-content: center;
  gap: 0.35rem;
  margin-bottom: 0.4rem;
}

.kb-key {
  background: #1e2638;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 2px 0 #0a0d17;
  color: #f1f5f9;
  border-radius: 6px;
  min-width: 0;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  font-weight: 500;
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  touch-action: manipulation;
  cursor: pointer;
  transition: all 0.08s ease;
  flex: 1;
}

.kb-key:hover, .kb-key:active, .kb-key.active-pressed {
  background: #2b364e;
  border-color: var(--accent-color);
  color: #ffffff;
  transform: translateY(1px) scale(0.98);
}

.kb-key.active-pressed {
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.45);
}

.kb-key-accent {
  background: #10b981;
  color: #ffffff;
  border-color: #34d399;
}

.kb-key-return {
  background: #232c3d;
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.14);
  font-size: 1.15rem;
}

.kb-key-return:hover, .kb-key-return:active, .kb-key-return.active-pressed {
  background: #334057;
  border-color: var(--accent-color);
  color: #34d399;
}

.kb-key-fn {
  background: #182030;
  color: var(--text-secondary);
  font-size: 0.82rem;
}

.kb-spacebar {
  flex: 4.4;
  font-size: 0.85rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.space-lang-badge {
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--accent-color);
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 1px 6px;
  border-radius: 4px;
  letter-spacing: 0.5px;
}

.kb-spacer {
  pointer-events: none;
}

.chat-input-sim {
  cursor: text;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.chat-input-sim:hover, .chat-input-sim:focus, .chat-input-sim.active-focus {
  border-color: rgba(16, 185, 129, 0.6);
  box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.15);
}

/* Floating Telemetry Chips Around Mockup */
.floating-chip {
  position: absolute;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 9999px;
  padding: 0.45rem 1rem;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  font-weight: 600;
  color: #f8fafc;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
  z-index: 2;
  white-space: nowrap;
}

@media (max-width: 768px) {
  .floating-chip {
    display: none;
  }
}

/* ==========================================================================
   Android Showcase & Pixel-Perfect App Cards
   ========================================================================== */
.app-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
  align-items: stretch;
}

.app-card {
  background: var(--card-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow), var(--card-inner-glow);
  border-radius: 16px;
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
}

.app-card:hover {
  transform: translateY(-4px);
  border-color: var(--card-border-hover);
  box-shadow: var(--shadow), 0 0 30px -10px var(--accent-glow);
}

.app-top-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  height: 28px;
  margin-bottom: 1.25rem;
}

.app-category {
  font-size: 0.72rem;
  color: var(--accent-color);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
  min-width: 0;
}

.app-header-block {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  min-height: 52px;
  margin-bottom: 1rem;
}

.app-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background: var(--tag-bg);
  border: 1px solid var(--card-border);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

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

.app-title-area {
  flex: 1;
  min-width: 0;
}

.app-title-area h3 {
  margin: 0 0 0.15rem 0;
  font-size: 1.25rem;
  line-height: 1.2;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.app-subtitle {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: block;
  line-height: 1.3;
}

.app-description {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.25rem;
  flex-grow: 1;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 5.75em;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  min-height: 32px;
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--card-border);
}

.tech-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--tag-text);
  background: var(--tag-bg);
  border: 1px solid var(--tag-border);
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  white-space: nowrap;
}

.app-features {
  list-style: none;
  padding: 0.75rem 0 0 0;
  margin: 0 0 1.25rem 0;
  font-size: 0.85rem;
  color: var(--text-secondary);
  border-top: 1px dashed var(--card-border);
}

.app-features li {
  position: relative;
  padding-left: 1.25rem;
  margin-bottom: 0.4rem;
  line-height: 1.45;
}

.app-features li::before {
  content: "▹";
  position: absolute;
  left: 0;
  color: var(--accent-color);
  font-size: 0.85rem;
  font-weight: bold;
}

.app-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding-top: 0.85rem;
  margin-top: 0;
}

/* Filter Controls */
.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.5rem 0 2rem 0;
}

.filter-btn {
  background: var(--tag-bg);
  color: var(--text-secondary);
  border: 1px solid var(--card-border);
  padding: 0.5rem 1.15rem;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: var(--font-sans);
}

.filter-btn:hover {
  border-color: var(--accent-color);
  color: var(--text-color);
}

.filter-btn.active {
  background: var(--accent-color);
  color: #ffffff;
  border-color: var(--accent-color);
  box-shadow: 0 0 15px rgba(16, 185, 129, 0.35);
}

/* ==========================================================================
   Project Grid, Keywords, Tag Cloud & Blog Helpers
   ========================================================================== */
.project-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.75rem;
}

.keywords {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.keywords-label {
  color: var(--accent-color);
  font-weight: 600;
}

input[type="text"] {
  background: var(--tag-bg) !important;
  color: var(--text-color) !important;
  border: 1px solid var(--card-border) !important;
  border-radius: 10px !important;
  outline: none;
  font-family: var(--font-sans);
}

input[type="text"]:focus {
  border-color: var(--accent-color) !important;
  box-shadow: 0 0 15px rgba(16, 185, 129, 0.2) !important;
}

.tag-btn {
  background: var(--tag-bg);
  color: var(--tag-text);
  border: 1px solid var(--card-border);
  padding: 0.25rem 0.65rem;
  border-radius: 9999px;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  cursor: pointer;
  transition: all 0.2s ease;
}

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

/* ==========================================================================
   Blog & Post Articles
   ========================================================================== */
.post-container {
  max-width: 820px;
  margin: 2rem auto;
  padding: 3rem;
  background: var(--card-bg);
  backdrop-filter: blur(16px);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  box-shadow: var(--shadow);
}

.post-header {
  margin-bottom: 2.5rem;
  border-bottom: 1px solid var(--card-border);
  padding-bottom: 1.5rem;
}

.post-meta {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 0.75rem;
}

.post-content {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

.post-content h2, .post-content h3 {
  color: var(--text-color);
  margin-top: 2rem;
}

.post-content p {
  margin-bottom: 1.4rem;
}

.post-content pre {
  background: #090c13;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 1.25rem;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

.post-content code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--tag-bg);
  border: 1px solid var(--card-border);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
}

.post-content pre code {
  background: none;
  border: none;
  padding: 0;
}

/* ==========================================================================
   Modern Site Footer
   ========================================================================== */
.site-footer {
  margin-top: 6rem;
  border-top: 1px solid var(--card-border);
  padding: 3.5rem 1.5rem 4rem 1.5rem;
  background: var(--paper-bg);
  position: relative;
  z-index: 1;
}

.footer-container {
  max-width: 1160px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.footer-brand-title {
  font-weight: 800;
  font-size: 0.95rem;
  color: var(--text-color);
  display: block;
  line-height: 1.2;
}

.footer-brand-subtitle {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  display: block;
  margin-top: 0.2rem;
}

.footer-links-grid {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.75rem;
  font-size: 0.88rem;
}

.footer-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

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

.footer-link-highlight {
  color: var(--accent-color);
  font-weight: 600;
}

.footer-link-highlight:hover {
  color: var(--accent-hover);
}

@media (max-width: 768px) {
  .site-footer {
    margin-top: 4rem;
    padding: 2.75rem 1.25rem 3.5rem 1.25rem;
  }

  .footer-container {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.75rem;
  }

  .footer-brand {
    width: 100%;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--card-border);
  }

  .footer-links-grid {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.85rem 1.25rem;
    font-size: 0.88rem;
  }

  .footer-link {
    padding: 0.35rem 0;
  }
}

footer {
  text-align: center;
  padding: 3.5rem 1.5rem;
  color: var(--text-muted);
  border-top: 1px solid var(--card-border);
  margin-top: 5rem;
  font-size: 0.9rem;
  position: relative;
  z-index: 1;
}

footer a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}

footer a:hover {
  color: var(--accent-color);
}