/* ----------------------------------------------------
   POCKET TECH LANDING PAGE STYLESHEET
   Vanilla CSS | Modern Responsive Design System
   ---------------------------------------------------- */

/* --- CSS Variables & Design Tokens --- */
:root {
  /* Color Palette (HSL System) */
  --clr-bg: hsl(210, 40%, 98%);
  --clr-bg-alt: hsl(0, 0%, 100%);
  --clr-surface: rgba(255, 255, 255, 0.7);
  --clr-surface-hover: rgba(255, 255, 255, 0.95);
  --clr-border: rgba(0, 0, 0, 0.08);
  --clr-border-active: rgba(0, 0, 0, 0.18);

  --clr-primary: hsl(239, 84%, 55%);      /* Indigo #6366f1 */
  --clr-primary-glow: hsla(239, 84%, 67%, 0.15);
  --clr-secondary: hsl(271, 91%, 55%);    /* Violet #a855f7 */
  --clr-secondary-glow: hsla(271, 91%, 65%, 0.15);

  --clr-success: hsl(142, 71%, 45%);      /* Emerald/Green */
  --clr-danger: hsl(348, 89%, 60%);       /* Rose/Red */
  --clr-warning: hsl(38, 92%, 50%);       /* Amber/Yellow */

  --clr-text-light: hsl(0, 0%, 100%);
  --clr-text-muted: hsl(225, 12%, 45%);
  --clr-text-dark: hsl(230, 24%, 15%);

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-header: 'Outfit', sans-serif;
  --font-mono: 'Fira Code', 'Courier New', monospace;

  /* Spacing */
  --space-xxs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-xxl: 6rem;

  /* Borders & Blurs */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --blur-normal: 16px;

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --- Base & Reset Rules --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

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

/* --- Ambient Glowing Orbs --- */
.glow-orb {
  position: absolute;
  width: 40vw;
  height: 40vw;
  max-width: 500px;
  max-height: 500px;
  border-radius: var(--radius-full);
  filter: blur(100px);
  z-index: -10;
  opacity: 0.25;
  pointer-events: none;
  mix-blend-mode: multiply;
}

.orb-1 {
  top: 10%;
  left: -10%;
  background: radial-gradient(circle, var(--clr-primary) 0%, rgba(0,0,0,0) 70%);
}

.orb-2 {
  top: 40%;
  right: -10%;
  background: radial-gradient(circle, var(--clr-secondary) 0%, rgba(0,0,0,0) 70%);
}

.orb-3 {
  bottom: 10%;
  left: 20%;
  background: radial-gradient(circle, var(--clr-danger) 0%, rgba(0,0,0,0) 70%);
  opacity: 0.15;
}

/* --- Custom Webkit Scrollbars --- */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--clr-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--clr-border);
  border-radius: var(--radius-full);
  border: 2px solid var(--clr-bg-alt);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--clr-primary);
}

/* --- Layout Container --- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* --- Glassmorphic Presets --- */
.glass-card {
  background: var(--clr-surface);
  backdrop-filter: blur(var(--blur-normal));
  -webkit-backdrop-filter: blur(var(--blur-normal));
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.08);
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.glass-card:hover {
  border-color: var(--clr-border-active);
}

/* --- Glassmorphic Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-md);
  font-family: var(--font-header);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  font-size: 0.95rem;
}

.btn:active {
  transform: scale(0.97);
}

.primary-btn {
  background: linear-gradient(135deg, var(--clr-primary) 0%, var(--clr-secondary) 100%);
  color: var(--clr-text-light);
  border: none;
  box-shadow: 0 4px 20px -2px var(--clr-primary-glow);
}

.primary-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px -2px rgba(99, 102, 241, 0.4);
}

.secondary-btn {
  background: var(--clr-surface);
  color: var(--clr-text-dark);
  border: 1px solid var(--clr-border);
  backdrop-filter: blur(8px);
}

.secondary-btn:hover {
  background: var(--clr-surface-hover);
  border-color: var(--clr-border-active);
  transform: translateY(-2px);
}

.glass-btn {
  padding: var(--space-xs) var(--space-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  color: var(--clr-text-dark);
  font-size: 0.85rem;
}

.glass-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--clr-border-active);
}

/* --- Sticky Glass Header --- */
.main-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--clr-border);
  transition: background var(--transition-fast);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  text-decoration: none;
  color: var(--clr-text-dark);
}

.logo-icon {
  width: 32px;
  height: 32px;
}

.brand-name {
  font-family: var(--font-header);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav-link {
  text-decoration: none;
  color: var(--clr-text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--clr-text-dark);
}

/* --- Hero Section --- */
.hero-section {
  padding: 180px 0 100px;
  position: relative;
  overflow: hidden;
}

.hero-container {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: var(--space-xl);
}

.hero-content {
  max-width: 650px;
}

.badge {
  display: inline-block;
  padding: var(--space-xxs) var(--space-sm);
  background: var(--clr-primary-glow);
  color: var(--clr-primary);
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: var(--radius-full);
  font-family: var(--font-header);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-md);
}

.hero-title {
  font-family: var(--font-header);
  font-size: clamp(2.5rem, 5vw, 3.8rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-md);
  background: linear-gradient(135deg, var(--clr-text-dark) 30%, var(--clr-text-muted) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--clr-text-muted);
  margin-bottom: var(--space-xl);
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  gap: var(--space-sm);
}

/* Hero Showcase Panel */
.hero-graphic {
  display: flex;
  justify-content: center;
  position: relative;
}

.hero-showcase {
  width: 100%;
  max-width: 320px;
  aspect-ratio: 1;
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  position: relative;
}

.window-dot-bar {
  display: flex;
  gap: 6px;
  margin-bottom: var(--space-md);
}

.window-dot {
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
}

.window-dot.red { background-color: var(--clr-danger); }
.window-dot.yellow { background-color: var(--clr-warning); }
.window-dot.green { background-color: var(--clr-success); }

.showcase-inner {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 1px dashed rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  position: relative;
  overflow: hidden;
}

.showcase-spark {
  position: absolute;
  width: 80%;
  height: 80%;
  pointer-events: none;
}

.spinning-circle {
  transform-origin: center;
  animation: spin 12s linear infinite;
}

.showcase-text {
  text-align: center;
  z-index: 1;
}

.glowing-text {
  font-family: var(--font-header);
  font-weight: 700;
  font-size: 1.6rem;
  letter-spacing: 0.1em;
  background: linear-gradient(135deg, var(--clr-text-dark) 0%, var(--clr-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 2px 10px var(--clr-primary-glow));
  animation: glowPulse 2.5s ease-in-out infinite alternate;
}

.sub-glowing {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--clr-text-muted);
  margin-top: var(--space-xxs);
  letter-spacing: 0.25em;
}

/* --- Showcase Sections (Grid) --- */
.showcase-section {
  padding: 100px 0;
  position: relative;
}

.showcase-section.alt-bg {
  background-color: var(--clr-bg-alt);
}

.showcase-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: var(--space-xxl);
}

.showcase-grid.reverse .mockup-container {
  order: -1;
}

.app-icon-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
  box-shadow: 0 8px 24px -6px rgba(0, 0, 0, 0.15);
}

.app-icon {
  width: 32px;
  height: 32px;
}

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

.bg-dark-night {
  background: linear-gradient(135deg, var(--clr-danger) 0%, hsl(20, 90%, 50%) 100%);
  color: var(--clr-text-light);
}

.bg-check-device {
  background: linear-gradient(135deg, var(--clr-primary) 0%, var(--clr-success) 100%);
  color: var(--clr-text-light);
}

.showcase-title {
  font-family: var(--font-header);
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-xxs);
}

.showcase-badge {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--clr-primary);
  margin-bottom: var(--space-md);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.showcase-desc {
  color: var(--clr-text-muted);
  font-size: 1rem;
  margin-bottom: var(--space-lg);
  line-height: 1.6;
}

.features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}

.features-list li {
  display: flex;
  gap: var(--space-sm);
  align-items: flex-start;
  font-size: 0.95rem;
}

.feat-icon {
  font-size: 1.2rem;
  line-height: 1.2;
}

.features-list strong {
  color: var(--clr-text-dark);
  font-weight: 600;
}

.store-badge-wrap {
  display: flex;
  gap: var(--space-sm);
}

.store-badge-btn {
  display: inline-block;
  height: 48px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: transform var(--transition-fast);
}

.store-badge-btn img {
  height: 100%;
}

.store-badge-btn:hover {
  transform: scale(1.03);
}

/* --- Premium Device Mockup --- */
.phone-mockup {
  width: 100%;
  max-width: 230px; /* Reduced from 280px to prevent overwhelming vertical height */
  aspect-ratio: 9 / 19.5;
  border-radius: 32px;
  border: 10px solid #e2e8f0;
  background: #ffffff;
  padding: 0;
  overflow: hidden;
  box-shadow: 0 20px 50px -15px rgba(0, 0, 0, 0.15);
  position: relative;
  margin: 0 auto;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.phone-mockup:hover {
  transform: translateY(-4px) scale(1.02);
  border-color: #cbd5e1;
}

.phone-camera {
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 45px;
  height: 12px;
  background: #0f172a;
  border-radius: var(--radius-full);
  z-index: 10;
}

.phone-screen-img {
  width: 100%;
  height: 100%;
  display: flex;
}

.phone-screen-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* --- Brand Philosophy (The Creed) --- */
.philosophy-section {
  padding: 120px 0;
  background: linear-gradient(to bottom, var(--clr-bg) 0%, var(--clr-bg-alt) 100%);
}

.philosophy-header {
  margin-bottom: var(--space-xxl);
}

.text-center { text-align: center; }

.section-title {
  font-family: var(--font-header);
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-xs);
}

.section-subtitle {
  color: var(--clr-text-muted);
  font-size: 1rem;
}

.phil-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.phil-card {
  padding: var(--space-xl) var(--space-md);
  text-align: center;
}

.phil-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-sm);
}

.phil-card h3 {
  font-family: var(--font-header);
  font-size: 1.35rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--clr-text-dark);
}

.phil-card p {
  color: var(--clr-text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* --- Footer --- */
.main-footer {
  background: var(--clr-bg-alt);
  border-top: 1px solid var(--clr-border);
  padding: var(--space-xxl) 0 var(--space-lg) 0;
}

.footer-container {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: var(--space-xxl);
  margin-bottom: var(--space-xxl);
}

.footer-logo {
  margin-bottom: var(--space-md);
}

.footer-tagline {
  color: var(--clr-text-muted);
  font-size: 0.9rem;
  max-width: 320px;
}

.footer-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
}

.link-group h4 {
  font-family: var(--font-header);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--clr-text-dark);
  margin-bottom: var(--space-md);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.link-group a {
  display: block;
  color: var(--clr-text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  margin-bottom: var(--space-sm);
  transition: color var(--transition-fast);
}

.link-group a:hover {
  color: var(--clr-text-dark);
}

.footer-bottom {
  border-top: 1px solid var(--clr-border);
  padding-top: var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.copyright {
  font-size: 0.8rem;
  color: var(--clr-text-muted);
}

.cloudflare-badge {
  padding: var(--space-xxs) var(--space-sm);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  gap: var(--space-xxs);
  border-color: rgba(249, 115, 22, 0.15); /* orange border */
}

.cf-icon {
  font-size: 0.75rem;
  color: #f97316;
}

.cf-txt {
  font-family: var(--font-header);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--clr-text-muted);
}

/* --- Core Scroll Motion & Reveals --- */
.reveal-visible {
  animation: slideUpReveal var(--transition-slow) forwards;
}

/* --- Keyframe Animations --- */
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes glowPulse {
  from { filter: drop-shadow(0 2px 8px var(--clr-primary-glow)); }
  to { filter: drop-shadow(0 2px 24px rgba(99, 102, 241, 0.4)); }
}

@keyframes pulseScale {
  0% { transform: scale(1); opacity: 0.9; }
  100% { transform: scale(2.8); opacity: 0; }
}

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

@keyframes slideUpReveal {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Initial state for Intersection Observer animation classes */
.fade-in-up {
  opacity: 0;
  transform: translateY(20px);
}

.fade-in {
  opacity: 0;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.25s; }
.delay-3 { animation-delay: 0.4s; }

/* Trigger active classes for animations on load/scroll */
.animate {
  animation: slideFadeIn var(--transition-slow) forwards;
}

/* --- Media Queries (Responsive Adaptations) --- */
@media (max-width: 1024px) {
  :root {
    --space-xxl: 4rem;
  }
  
  .hero-container {
    gap: var(--space-lg);
  }
  
  .showcase-grid {
    gap: var(--space-xl);
  }
}

@media (max-width: 768px) {
  html {
    font-size: 15px;
  }

  .nav-menu {
    display: none; /* simple hidden navigation for mobile */
  }

  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
    padding-bottom: var(--space-md);
  }
  
  .hero-content {
    margin: 0 auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-graphic {
    margin-top: var(--space-md);
  }

  .showcase-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .showcase-grid.reverse .mockup-container {
    order: 0;
  }

  .mockup-container {
    margin-top: var(--space-md);
  }

  .phil-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .footer-container {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
  
  .footer-links {
    gap: var(--space-md);
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
    width: 100%;
    max-width: 280px;
    margin: 0 auto;
  }
  
  .hero-actions .btn {
    width: 100%;
  }
}