/* ==========================================================================
   KESHAV STUDIOS — HIGH-TECH DEVELOPER PORTAL DESIGN SYSTEM
   Official Website for Google Play Developer Account: Keshav Studios
   Domain: keshavstudios.com
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;700&family=Outfit:wght@400;500;600;700;800;900&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&display=swap');

:root {
  /* Color Palette */
  --bg-darkest: #05070d;
  --bg-dark: #090d16;
  --bg-card: rgba(15, 23, 42, 0.65);
  --bg-card-hover: rgba(22, 33, 62, 0.75);
  --bg-card-glow: rgba(99, 102, 241, 0.08);
  
  --primary: #6366f1;
  --primary-glow: rgba(99, 102, 241, 0.4);
  --primary-light: #818cf8;
  
  --cyan: #00f2fe;
  --cyan-glow: rgba(0, 242, 254, 0.35);
  --cyan-dark: #0284c7;
  
  --purple: #a855f7;
  --purple-glow: rgba(168, 85, 247, 0.35);
  
  --emerald: #10b981;
  --emerald-glow: rgba(16, 185, 129, 0.3);
  
  --amber: #f59e0b;
  
  /* Text Colors */
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-sub: #64748b;
  --text-highlight: #38bdf8;
  
  /* Borders & Glass */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-accent: rgba(99, 102, 241, 0.3);
  --border-cyan: rgba(0, 242, 254, 0.35);
  --glass-blur: blur(20px);
  --glass-reflection: linear-gradient(135deg, rgba(255,255,255,0.12) 0%, rgba(255,255,255,0.02) 100%);
  
  /* Typography */
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  /* Radius & Shadows */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 32px;
  --radius-full: 9999px;
  
  --shadow-card: 0 10px 30px -5px rgba(0, 0, 0, 0.6);
  --shadow-neon-cyan: 0 0 35px rgba(0, 242, 254, 0.25);
  --shadow-neon-purple: 0 0 35px rgba(168, 85, 247, 0.25);
  --shadow-neon-indigo: 0 0 40px rgba(99, 102, 241, 0.3);
  
  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-spring: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ==========================================================================
   BASE & RESET
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-darkest);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-darkest);
}
::-webkit-scrollbar-thumb {
  background: rgba(99, 102, 241, 0.3);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 242, 254, 0.5);
}

/* Links & Typography */
a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-fast);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

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

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ==========================================================================
   DYNAMIC BACKGROUND CANVAS & AMBIENT GLOWS
   ========================================================================== */
#ambient-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -2;
  pointer-events: none;
  opacity: 0.6;
}

.ambient-light {
  position: fixed;
  border-radius: 50%;
  filter: blur(130px);
  z-index: -1;
  pointer-events: none;
  opacity: 0.45;
  animation: pulseLight 12s ease-in-out infinite alternate;
}

.light-1 {
  top: -10%;
  left: 15%;
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.4) 0%, transparent 70%);
}

.light-2 {
  top: 35%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 242, 254, 0.25) 0%, transparent 70%);
  animation-delay: -4s;
}

.light-3 {
  bottom: 5%;
  left: -5%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(168, 85, 247, 0.3) 0%, transparent 70%);
  animation-delay: -8s;
}

@keyframes pulseLight {
  0% { transform: scale(1) translate(0, 0); opacity: 0.35; }
  50% { transform: scale(1.15) translate(30px, -20px); opacity: 0.55; }
  100% { transform: scale(0.95) translate(-20px, 30px); opacity: 0.4; }
}

/* Cyber Grid Overlay */
.cyber-grid {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  z-index: -1;
  pointer-events: none;
  mask-image: radial-gradient(circle at 50% 35%, black 40%, transparent 85%);
}

/* ==========================================================================
   NAVIGATION BAR
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 16px 0;
  transition: all 0.3s ease;
}

.site-header.scrolled {
  padding: 12px 0;
  background: rgba(9, 13, 22, 0.85);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.7);
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
}

.brand-logo-wrap {
  position: relative;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 0 20px var(--primary-glow);
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: #000;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.brand-link:hover .brand-logo-wrap {
  transform: scale(1.05);
  box-shadow: 0 0 25px var(--cyan-glow);
}

.brand-logo-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

.brand-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #ffffff 30%, #a5b4fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-badge {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  display: flex;
  align-items: center;
  gap: 5px;
}

.brand-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--emerald);
  box-shadow: 0 0 8px var(--emerald);
  animation: pulseDot 2s infinite;
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.8); }
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-link {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-muted);
  position: relative;
  padding: 6px 0;
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-main);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--primary));
  transition: width var(--transition-fast);
  border-radius: 2px;
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* ==========================================================================
   BUTTONS & BADGES
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 11px 22px;
  font-size: 0.92rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #4f46e5 0%, #06b6d4 100%);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 20px rgba(79, 70, 229, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(6, 182, 212, 0.5);
  border-color: rgba(255, 255, 255, 0.4);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
  color: #fff;
}

.btn-playstore {
  background: #000;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
  padding: 9px 18px;
}

.btn-playstore:hover {
  border-color: var(--cyan);
  box-shadow: 0 0 25px rgba(0, 242, 254, 0.35);
  transform: translateY(-2px);
}

.btn-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.btn-lg {
  padding: 15px 30px;
  font-size: 1.05rem;
  border-radius: var(--radius-md);
}

/* Glowing Chip */
.cyber-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 24px;
  box-shadow: 0 0 20px rgba(99, 102, 241, 0.15);
}

.cyber-chip .pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
  animation: pulseDot 1.5s infinite;
}

/* Mobile Menu Toggle */
.mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  cursor: pointer;
  z-index: 1001;
}

.mobile-toggle span {
  width: 100%;
  height: 2px;
  background-color: var(--text-main);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
  min-height: 100vh;
  padding-top: 150px;
  padding-bottom: 80px;
  display: flex;
  align-items: center;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 60px;
  align-items: center;
}

.hero-content {
  position: relative;
  z-index: 10;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.text-gradient {
  background: linear-gradient(135deg, #00f2fe 0%, #4facfe 40%, #a855f7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 580px;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

/* Hero Stats Strip */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding-top: 32px;
  border-top: 1px solid var(--border-subtle);
}

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

.stat-val {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-main);
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.stat-val .unit {
  font-size: 1.1rem;
  color: var(--cyan);
}

.stat-label {
  font-size: 0.82rem;
  color: var(--text-sub);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

/* ==========================================================================
   PHONE 3D MOCKUP & INTERACTIVE SCREENSHOT SLIDER
   ========================================================================== */
.hero-visual {
  display: flex;
  justify-content: center;
  position: relative;
}

.mockup-container {
  position: relative;
  width: 320px;
  height: 640px;
  perspective: 1200px;
}

.phone-frame {
  width: 100%;
  height: 100%;
  background: #111420;
  border-radius: 46px;
  padding: 12px;
  box-shadow: 
    0 25px 60px -15px rgba(0, 0, 0, 0.8),
    0 0 50px rgba(99, 102, 241, 0.25),
    inset 0 0 4px 2px rgba(255, 255, 255, 0.15);
  border: 4px solid #2d3748;
  position: relative;
  overflow: hidden;
  transition: transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.phone-frame:hover {
  transform: translateY(-8px) rotateY(-4deg) rotateX(4deg);
}

.phone-screen {
  width: 100%;
  height: 100%;
  border-radius: 36px;
  overflow: hidden;
  position: relative;
  background: #000;
}

.notch {
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: 90px;
  height: 22px;
  background: #000;
  border-radius: 20px;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.camera-lens {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #1a202c;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Slides inside Phone */
.screen-slides {
  width: 100%;
  height: 100%;
  position: relative;
}

.screen-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.4s ease-in-out;
  cursor: pointer;
}

.screen-slide.active {
  opacity: 1;
  z-index: 10;
}

.screen-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Phone Glass Reflection */
.phone-reflection {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(115deg, rgba(255,255,255,0.12) 0%, rgba(255,255,255,0.01) 45%, transparent 60%);
  pointer-events: none;
  z-index: 15;
}

/* Floating Badges around Phone */
.float-card {
  position: absolute;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: 12px 18px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.6);
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 12px;
  animation: floatCard 6s ease-in-out infinite alternate;
}

.float-card-1 {
  top: 8%;
  left: -40px;
  animation-delay: 0s;
}

.float-card-2 {
  bottom: 12%;
  right: -35px;
  animation-delay: -3s;
}

@keyframes floatCard {
  0% { transform: translateY(0px); }
  100% { transform: translateY(-14px); }
}

.float-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(0, 242, 254, 0.15);
  border: 1px solid rgba(0, 242, 254, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--cyan);
  font-size: 1.1rem;
}

.float-card-2 .float-icon {
  background: rgba(16, 185, 129, 0.15);
  border-color: rgba(16, 185, 129, 0.3);
  color: var(--emerald);
}

.float-text h5 {
  font-size: 0.85rem;
  font-weight: 700;
  color: #fff;
}

.float-text p {
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* Phone Controls / Navigation dots */
.phone-nav-dots {
  position: absolute;
  bottom: -40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 30;
}

.dot-btn {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transition: all 0.3s ease;
}

.dot-btn.active {
  width: 28px;
  border-radius: 6px;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
}

/* ==========================================================================
   SECTION COMMON STYLES
   ========================================================================== */
.section {
  padding: 100px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 60px auto;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: var(--radius-full);
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.25);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 3.8vw, 2.9rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 18px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ==========================================================================
   FEATURED APP SPOTLIGHT: PDF BNAO
   ========================================================================== */
.app-spotlight-card {
  background: linear-gradient(135deg, rgba(17, 24, 39, 0.8) 0%, rgba(10, 15, 29, 0.95) 100%);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-xl);
  padding: 48px;
  box-shadow: var(--shadow-card), 0 0 40px rgba(99, 102, 241, 0.12);
  position: relative;
  overflow: hidden;
}

.spotlight-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.app-identity {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 24px;
}

.app-icon-large {
  width: 90px;
  height: 90px;
  border-radius: 22px;
  overflow: hidden;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5), 0 0 20px rgba(239, 68, 68, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.15);
  flex-shrink: 0;
  background: #111;
}

.app-icon-large img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.app-meta-title h3 {
  font-family: var(--font-heading);
  font-size: 1.85rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.01em;
}

.app-package-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--cyan);
  background: rgba(0, 242, 254, 0.08);
  padding: 3px 10px;
  border-radius: 6px;
  margin-top: 4px;
}

.app-description {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 32px;
}

/* Feature Bullet Cards */
.feature-mini-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 36px;
}

.feature-mini-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  transition: all var(--transition-fast);
}

.feature-mini-card:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(99, 102, 241, 0.3);
  transform: translateY(-2px);
}

.mini-icon {
  font-size: 1.3rem;
  line-height: 1;
}

.mini-text h5 {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 2px;
}

.mini-text p {
  font-size: 0.78rem;
  color: var(--text-sub);
  line-height: 1.4;
}

.app-cta-row {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

/* Interactive Screenshots Gallery inside Spotlight */
.spotlight-gallery {
  position: relative;
}

.gallery-main {
  width: 100%;
  height: 480px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
  border: 1px solid var(--border-subtle);
  position: relative;
  background: #000;
}

.gallery-main img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 0.4s ease;
  cursor: zoom-in;
}

.gallery-thumbs {
  display: flex;
  gap: 12px;
  margin-top: 16px;
  justify-content: center;
}

.thumb-item {
  width: 60px;
  height: 80px;
  border-radius: 8px;
  overflow: hidden;
  border: 2px solid transparent;
  cursor: pointer;
  opacity: 0.6;
  transition: all var(--transition-fast);
  background: #111;
}

.thumb-item.active,
.thumb-item:hover {
  opacity: 1;
  border-color: var(--cyan);
  transform: translateY(-2px);
  box-shadow: 0 0 12px var(--cyan-glow);
}

.thumb-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ==========================================================================
   STUDIO PIPELINE / APPS PORTFOLIO
   ========================================================================== */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.portfolio-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all var(--transition-smooth);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  overflow: hidden;
}

.portfolio-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), var(--primary));
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.portfolio-card:hover {
  transform: translateY(-6px);
  border-color: rgba(99, 102, 241, 0.35);
  box-shadow: var(--shadow-card), 0 0 30px rgba(99, 102, 241, 0.15);
}

.portfolio-card:hover::before {
  opacity: 1;
}

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.card-icon {
  width: 58px;
  height: 58px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  overflow: hidden;
}

.card-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.status-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
}

.status-live {
  background: rgba(16, 185, 129, 0.15);
  color: var(--emerald);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.status-dev {
  background: rgba(245, 158, 11, 0.15);
  color: var(--amber);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.status-concept {
  background: rgba(168, 85, 247, 0.15);
  color: var(--purple);
  border: 1px solid rgba(168, 85, 247, 0.3);
}

.portfolio-card h4 {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: #fff;
}

.portfolio-card p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 24px;
  flex-grow: 1;
}

.card-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 3px 8px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-sub);
}

.card-footer-action {
  border-top: 1px solid var(--border-subtle);
  padding-top: 18px;
}

/* ==========================================================================
   ENGINEERING & HIGH-TECH ARCHITECTURE
   ========================================================================== */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.tech-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition-smooth);
  position: relative;
}

.tech-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-cyan);
  box-shadow: 0 10px 25px rgba(0, 242, 254, 0.1);
}

.tech-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(0, 242, 254, 0.2));
  border: 1px solid rgba(0, 242, 254, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--cyan);
  font-size: 1.4rem;
  margin-bottom: 20px;
}

.tech-card h4 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: #fff;
}

.tech-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   DEVELOPER TRUST & COMPLIANCE HUB (CRITICAL FOR GOOGLE PLAY CONSOLE)
   ========================================================================== */
.trust-hub-card {
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.9) 0%, rgba(9, 13, 22, 0.95) 100%);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-xl);
  padding: 44px;
  position: relative;
  overflow: hidden;
}

.trust-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.trust-item {
  display: flex;
  gap: 18px;
}

.trust-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--emerald);
  font-size: 1.25rem;
  flex-shrink: 0;
}

.trust-text h4 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
}

.trust-text p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin-bottom: 10px;
}

.trust-link {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--cyan);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.trust-link:hover {
  text-decoration: underline;
  color: #fff;
}

/* ==========================================================================
   CONTACT & SUPPORT SECTION
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 50px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 48px;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(16px);
}

.contact-info {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.contact-header h3 {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 16px;
  color: #fff;
}

.contact-header p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 32px;
}

.contact-channels {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.channel-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: all var(--transition-fast);
}

.channel-card:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(99, 102, 241, 0.3);
}

.channel-left {
  display: flex;
  align-items: center;
  gap: 14px;
}

.channel-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(99, 102, 241, 0.15);
  color: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.channel-label {
  font-size: 0.75rem;
  color: var(--text-sub);
  text-transform: uppercase;
  font-weight: 600;
}

.channel-val {
  font-size: 0.92rem;
  font-weight: 600;
  color: #fff;
}

.copy-btn {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-main);
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.78rem;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.copy-btn:hover {
  background: var(--cyan);
  color: #000;
}

/* Contact Form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-control {
  width: 100%;
  padding: 14px 18px;
  background: rgba(10, 15, 29, 0.8);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: #fff;
  font-family: inherit;
  font-size: 0.92rem;
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.2);
  background: rgba(15, 23, 42, 0.9);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

.form-submit-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 8px;
}

.form-status {
  font-size: 0.85rem;
  color: var(--emerald);
  display: none;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  background: #04060a;
  border-top: 1px solid var(--border-subtle);
  padding: 80px 0 32px 0;
  margin-top: 60px;
  position: relative;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
}

.footer-brand p {
  font-size: 0.9rem;
  color: var(--text-sub);
  line-height: 1.6;
  margin-top: 16px;
  max-width: 320px;
}

.footer-col h5 {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 20px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-link {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.footer-link:hover {
  color: var(--cyan);
  transform: translateX(3px);
  display: inline-block;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 0.82rem;
  color: var(--text-sub);
}

.legal-notice {
  font-size: 0.75rem;
  color: #475569;
  line-height: 1.5;
  margin-top: 8px;
}

/* ==========================================================================
   MODALS (QR CODE & LIGHTBOX)
   ========================================================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(16px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-box {
  background: #0f172a;
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-xl);
  padding: 36px;
  max-width: 440px;
  width: 90%;
  text-align: center;
  position: relative;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.9), 0 0 40px rgba(99, 102, 241, 0.3);
  transform: scale(0.95);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-overlay.active .modal-box {
  transform: scale(1);
}

.modal-close {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: var(--transition-fast);
}

.modal-close:hover {
  background: rgba(239, 68, 68, 0.3);
  color: #ef4444;
}

.qr-code-img {
  width: 200px;
  height: 200px;
  margin: 20px auto;
  border-radius: 12px;
  background: #fff;
  padding: 10px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5);
}

/* Lightbox Modal */
.lightbox-box {
  max-width: 90vw;
  max-height: 90vh;
  padding: 12px;
  background: transparent;
  border: none;
  box-shadow: none;
}

.lightbox-img {
  max-width: 100%;
  max-height: 85vh;
  object-fit: contain;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.9);
}

/* Toast Notification */
.toast-notice {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background: #10b981;
  color: #000;
  font-weight: 700;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(16, 185, 129, 0.4);
  z-index: 3000;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  align-items: center;
  gap: 10px;
}

.toast-notice.show {
  transform: translateY(0);
  opacity: 1;
}

/* ==========================================================================
   RESPONSIVE DESIGN BREAKPOINTS
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 50px;
  }
  
  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .hero-stats {
    justify-content: center;
    max-width: 600px;
    margin: 0 auto;
  }
  
  .spotlight-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .tech-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .trust-grid {
    grid-template-columns: 1fr;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 340px;
    height: 100vh;
    background: #090d16;
    flex-direction: column;
    justify-content: center;
    gap: 32px;
    padding: 40px;
    border-left: 1px solid var(--border-subtle);
    box-shadow: -20px 0 50px rgba(0, 0, 0, 0.8);
    transition: right 0.4s ease;
    z-index: 1000;
  }
  
  .nav-menu.open {
    right: 0;
  }
  
  .mobile-toggle {
    display: flex;
  }
  
  .hero-stats {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
  
  .tech-grid {
    grid-template-columns: 1fr;
  }
  
  .feature-mini-grid {
    grid-template-columns: 1fr;
  }
  
  .app-spotlight-card {
    padding: 24px;
  }
  
  .contact-grid {
    padding: 24px;
  }
  
  .footer-top {
    grid-template-columns: 1fr;
  }
  
  .float-card {
    display: none;
  }
}