/* ============================================
   CSS Variables & Base Styles
   ============================================ */
:root {
  --bg: #04030f;
  --gradient: linear-gradient(135deg, rgba(255, 119, 208, 0.28), rgba(79, 209, 255, 0.25));
  --panel: rgba(17, 16, 37, 0.88);
  --panel-strong: rgba(24, 33, 68, 0.92);
  --accent: #ff77d0;
  --accent-alt: #4fd1ff;
  --text: #e8f6ff;
  --muted: rgba(232, 246, 255, 0.72);
  --outline: rgba(79, 209, 255, 0.24);
  --shadow: 0 25px 45px rgba(0, 0, 0, 0.4);
  
  /* Responsive spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Responsive font sizes */
  --font-xs: 0.75rem;
  --font-sm: 0.875rem;
  --font-base: 1rem;
  --font-lg: 1.125rem;
  --font-xl: 1.25rem;
  --font-2xl: 1.5rem;
  --font-3xl: 2rem;
  --font-4xl: 2.5rem;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: "Source Code Pro", monospace;
  background: var(--bg);
  color: var(--text);
  background-image: var(--gradient);
  position: relative;
  background-attachment: fixed;
  overflow-x: hidden;
  line-height: 1.6;
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
  -webkit-tap-highlight-color: rgba(79, 209, 255, 0.2);
}

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

/* ============================================
   Header & Navigation (Mobile First)
   ============================================ */
.shell-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--spacing-md);
  align-items: center;
  padding: var(--spacing-md) var(--spacing-lg);
  background: rgba(9, 11, 28, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--outline);
}

.brand {
  font-family: "Rajdhani", sans-serif;
  font-size: clamp(1.2rem, 4vw, 2.2rem);
  letter-spacing: clamp(1px, 0.2vw, 4px);
  text-transform: uppercase;
  color: var(--accent);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.tagline {
  display: none;
  font-size: var(--font-xs);
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted);
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--accent-alt);
  color: var(--accent-alt);
  background: rgba(79, 209, 255, 0.1);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: 12px;
  font-size: 1.3rem;
  cursor: pointer;
  transition: all 0.2s ease;
  min-width: 44px;
  min-height: 44px;
  touch-action: manipulation;
}

.nav-toggle:hover,
.nav-toggle:focus {
  background: rgba(79, 209, 255, 0.2);
  border-color: var(--accent);
  color: var(--accent);
  transform: scale(1.05);
  outline: none;
  }

  .nav-toggle[aria-expanded="true"] {
    background: rgba(255, 119, 208, 0.2);
    border-color: var(--accent);
    color: var(--accent);
  }

.primary-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  padding: var(--spacing-2xl) var(--spacing-lg);
  background: rgba(4, 3, 15, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 100;
  transform: translateX(-100%);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
  opacity: 0;
  pointer-events: none;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  will-change: transform, opacity;
}

.primary-nav.open {
  transform: translateX(0);
  opacity: 1;
  pointer-events: all;
}

.primary-nav a {
  padding: var(--spacing-md) var(--spacing-xl);
  text-align: center;
  width: 100%;
  max-width: 300px;
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(79, 209, 255, 0.12);
  border: 1px solid rgba(79, 209, 255, 0.25);
  border-radius: 12px;
  font-size: var(--font-base);
  font-weight: 600;
  box-sizing: border-box;
  transition: all 0.25s ease;
  color: var(--text);
  white-space: nowrap;
  touch-action: manipulation;
}

.primary-nav a:hover,
.primary-nav a:focus {
  background: rgba(255, 119, 208, 0.2);
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 2px 8px rgba(255, 119, 208, 0.15);
  color: var(--text);
  outline: none;
}

.primary-nav a:active {
  transform: translateY(0);
}

/* ============================================
   Main Content (Mobile First)
   ============================================ */
main {
  padding: var(--spacing-xl) var(--spacing-lg);
  display: grid;
  gap: var(--spacing-2xl);
  max-width: 100%;
  width: 100%;
}

.hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
  align-items: start;
}

.hero-card {
  background: var(--panel-strong);
  border-radius: clamp(20px, 5vw, 30px);
  padding: var(--spacing-lg);
  border: 1px solid var(--outline);
  box-shadow: var(--shadow);
  display: grid;
  gap: var(--spacing-md);
}

.hero-card h1 {
  margin: 0;
  font-family: "Rajdhani", sans-serif;
  font-size: clamp(1.5rem, 5vw, 2.8rem);
  letter-spacing: clamp(1px, 0.3vw, 3px);
  line-height: 1.2;
}

.hero-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
  word-wrap: break-word;
  overflow-wrap: break-word;
  font-size: clamp(0.9rem, 2.5vw, 1rem);
}

.hero-stats {
  background: rgba(9, 11, 28, 0.8);
  border-radius: clamp(20px, 5vw, 24px);
  padding: var(--spacing-lg);
  border: 1px solid var(--outline);
  box-shadow: var(--shadow);
  display: grid;
  gap: var(--spacing-md);
}

.hero-stats h2 {
  margin: 0;
  font-family: "Rajdhani", sans-serif;
  font-size: clamp(1.3rem, 4vw, 1.8rem);
  letter-spacing: 2px;
  color: var(--accent-alt);
}

.hero-stats ul {
  margin: 0;
  padding-left: var(--spacing-lg);
  display: grid;
  gap: var(--spacing-sm);
  color: var(--muted);
  font-size: clamp(0.85rem, 2.5vw, 0.95rem);
  line-height: 1.6;
}

.section {
  display: grid;
  gap: var(--spacing-lg);
}

.section h2 {
  margin: 0;
  font-family: "Rajdhani", sans-serif;
  font-size: clamp(1.4rem, 4vw, 2.3rem);
  letter-spacing: 2px;
  color: var(--accent-alt);
  line-height: 1.3;
}

.section p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
  word-wrap: break-word;
  overflow-wrap: break-word;
  font-size: clamp(0.9rem, 2.5vw, 1rem);
}

.module-grid {
  display: grid;
    grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

.module {
  background: var(--panel);
  border-radius: clamp(18px, 4vw, 22px);
  padding: var(--spacing-lg);
  border: 1px solid var(--outline);
  box-shadow: var(--shadow);
  display: grid;
  gap: var(--spacing-md);
}

.module img {
  width: 100%;
  height: auto;
  border-radius: clamp(12px, 3vw, 16px);
  object-fit: cover;
  max-width: 100%;
}

.module h3 {
  margin: 0;
  font-family: "Rajdhani", sans-serif;
  font-size: clamp(1.1rem, 3vw, 1.4rem);
  letter-spacing: 1px;
  color: var(--accent);
  line-height: 1.3;
}

.module p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
  font-size: clamp(0.85rem, 2.5vw, 0.95rem);
}

.data-stream {
  background: var(--panel-strong);
  border-radius: clamp(18px, 4vw, 22px);
  border: 1px solid var(--outline);
  box-shadow: var(--shadow);
  padding: var(--spacing-lg);
  display: grid;
  gap: var(--spacing-lg);
}

.data-item {
  border-left: 3px solid rgba(79, 209, 255, 0.35);
  padding-left: var(--spacing-lg);
  display: grid;
  gap: var(--spacing-xs);
}

.data-item span {
  font-size: clamp(0.75rem, 2vw, 0.85rem);
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent-alt);
  font-weight: 600;
}

.data-item h3 {
  margin: 0;
  font-family: "Rajdhani", sans-serif;
  font-size: clamp(1.1rem, 3vw, 1.4rem);
  line-height: 1.3;
}

.data-item p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
  font-size: clamp(0.85rem, 2.5vw, 0.95rem);
}

.card-list {
  display: grid;
  gap: var(--spacing-md);
}

.footer {
  text-align: center;
  color: var(--muted);
  padding: var(--spacing-xl) var(--spacing-lg);
  font-size: clamp(0.85rem, 2vw, 0.95rem);
  line-height: 1.6;
}

.footer p {
  margin-bottom: var(--spacing-sm);
}

.footer a {
  margin-left: var(--spacing-sm);
  color: var(--accent-alt);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s ease;
}

.footer a:hover,
.footer a:focus {
  color: var(--accent);
  outline: none;
}

/* ============================================
   Forms (Mobile First)
   ============================================ */
.data-stream form {
  display: grid;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  background: rgba(9, 13, 32, 0.72);
  border-radius: clamp(16px, 3vw, 18px);
  border: 1px solid rgba(79, 209, 255, 0.18);
}

.data-stream label {
  font-weight: 600;
  letter-spacing: 1px;
  color: var(--accent-alt);
  font-size: clamp(0.9rem, 2.5vw, 1rem);
}

.data-stream input,
.data-stream textarea {
  padding: var(--spacing-md);
  border-radius: clamp(12px, 3vw, 14px);
  border: 1px solid rgba(79, 209, 255, 0.28);
  background: rgba(13, 18, 36, 0.88);
  color: var(--text);
  font-family: "Source Code Pro", monospace;
  width: 100%;
  box-sizing: border-box;
  font-size: clamp(0.9rem, 2.5vw, 1rem);
  min-height: 44px;
  -webkit-appearance: none;
  appearance: none;
}

.data-stream textarea {
  min-height: 120px;
  resize: vertical;
}

.data-stream input:focus,
.data-stream textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(255, 119, 208, 0.18);
}

.data-stream button {
  justify-self: stretch;
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: clamp(12px, 3vw, 14px);
  border: none;
  background: linear-gradient(135deg, var(--accent), var(--accent-alt));
  color: var(--text);
  font-family: "Rajdhani", sans-serif;
  font-weight: 700;
  letter-spacing: 1.2px;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  min-height: 48px;
  font-size: clamp(0.95rem, 2.5vw, 1.05rem);
  touch-action: manipulation;
}

.data-stream button:hover,
.data-stream button:focus {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(79, 209, 255, 0.25);
  outline: none;
}

.data-stream button:active {
  transform: translateY(0);
}

/* ============================================
   Animations
   ============================================ */
.observer-target {
  opacity: 0;
  transform: translateY(25px);
  transition: all 0.6s ease;
}

.observer-target.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   Tablet Styles (481px - 768px)
   ============================================ */
@media (min-width: 481px) {
  .shell-header {
    padding: var(--spacing-lg) var(--spacing-xl);
    gap: var(--spacing-lg);
  }

  .brand {
    font-size: clamp(1.4rem, 3.5vw, 2rem);
  }

  .nav-toggle {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 1.4rem;
  }

  main {
    padding: var(--spacing-2xl) var(--spacing-xl);
    gap: var(--spacing-2xl);
  }

  .hero {
    gap: var(--spacing-xl);
  }

  .hero-card {
    padding: var(--spacing-xl);
  }

  .hero-stats {
    padding: var(--spacing-xl);
  }

  .module-grid {
    gap: var(--spacing-xl);
  }

  .module {
    padding: var(--spacing-xl);
  }

  .data-stream {
    padding: var(--spacing-xl);
  }

  .primary-nav {
    padding: var(--spacing-2xl) var(--spacing-xl);
  }

  .primary-nav a {
    max-width: 350px;
    padding: var(--spacing-lg) var(--spacing-xl);
    min-height: 52px;
  }
}

/* ============================================
   Small Tablet / Large Mobile (600px+)
   ============================================ */
@media (min-width: 600px) {
  .module-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .data-item {
    padding-left: var(--spacing-xl);
  }

  .footer {
    padding: var(--spacing-2xl) var(--spacing-xl);
  }
}

/* ============================================
   Tablet Landscape (768px+)
   ============================================ */
@media (min-width: 768px) {
  .shell-header {
    grid-template-columns: auto 1fr auto;
    padding: var(--spacing-xl) var(--spacing-2xl);
  }

  .tagline {
    display: block;
    font-size: var(--font-sm);
  }

  .nav-toggle {
    display: none;
  }

  .primary-nav {
    position: static;
    display: flex;
    flex-direction: row;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    padding: 0;
    background: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    transform: none;
    opacity: 1;
    pointer-events: all;
    overflow: visible;
    width: auto;
    height: auto;
    z-index: auto;
  }

  .primary-nav.open {
    transform: none;
  }

  .primary-nav a {
    padding: var(--spacing-sm) var(--spacing-md);
    width: auto;
    max-width: none;
    min-height: auto;
    height: auto;
    font-size: var(--font-sm);
    background: rgba(79, 209, 255, 0.12);
    border: 1px solid transparent;
  }

  .primary-nav a:hover,
  .primary-nav a:focus {
    border-color: var(--accent-alt);
    background: rgba(255, 119, 208, 0.16);
    transform: translateY(-1px);
    box-shadow: none;
  }

  main {
    padding: var(--spacing-2xl) var(--spacing-2xl);
    gap: var(--spacing-3xl);
  }

  .hero {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-2xl);
  }

  .hero-card {
    padding: var(--spacing-2xl);
  }

  .hero-stats {
    padding: var(--spacing-2xl);
  }

  .module-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
  }

  .data-stream {
    padding: var(--spacing-2xl);
  }

  .data-stream button {
    justify-self: start;
    max-width: 300px;
    width: auto;
  }
}

/* ============================================
   Desktop Small (900px+)
   ============================================ */
@media (min-width: 900px) {
  .shell-header {
    padding: clamp(1.4rem, 3vw, 2.4rem) clamp(2rem, 5vw, 3rem);
  }

  .primary-nav {
    gap: var(--spacing-md);
  }

  .primary-nav a {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-base);
  }

  main {
    padding: clamp(2.4rem, 6vw, 4.5rem);
    max-width: 1400px;
    margin: 0 auto;
  }

  .module-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ============================================
   Desktop Medium (1024px+)
   ============================================ */
@media (min-width: 1024px) {
  .hero {
    grid-template-columns: 1.2fr 1fr;
    gap: var(--spacing-2xl);
  }

  .section {
    gap: var(--spacing-xl);
  }

  .module-grid {
    gap: var(--spacing-2xl);
  }

  .module {
    padding: var(--spacing-2xl);
  }
}

/* ============================================
   Desktop Large (1200px+)
   ============================================ */
@media (min-width: 1200px) {
  main {
    padding: var(--spacing-3xl) clamp(3rem, 8vw, 6rem);
  }

  .hero-card {
    padding: var(--spacing-2xl) var(--spacing-3xl);
  }

  .hero-stats {
    padding: var(--spacing-2xl) var(--spacing-3xl);
  }
}

/* ============================================
   Desktop Extra Large (1440px+)
   ============================================ */
@media (min-width: 1440px) {
  main {
    max-width: 1600px;
  }

  .module-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-2xl);
  }
}

/* ============================================
   Landscape Orientation Adjustments
   ============================================ */
@media (orientation: landscape) and (max-height: 600px) {
  .primary-nav {
    padding: var(--spacing-lg) var(--spacing-xl);
    gap: var(--spacing-sm);
  }

  .primary-nav a {
    padding: var(--spacing-sm) var(--spacing-md);
    min-height: 44px;
  }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
  .shell-header,
  .nav-toggle,
  .primary-nav,
  .footer {
    display: none;
  }

  body {
    background: white;
    color: black;
  }

  main {
    padding: 0;
  }
}

/* ============================================
   High DPI / Retina Display Adjustments
   ============================================ */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .module img {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
  }
}

/* ============================================
   Push Notification Styles
   ============================================ */
.notification {
  position: fixed !important;
  top: 24px !important;
  right: 24px !important;
  z-index: 99999 !important;
  display: flex !important;
  align-items: center !important;
  gap: 1rem !important;
  padding: 1.2rem 1.6rem !important;
  background: linear-gradient(135deg, #10b981, #059669) !important;
  border: none !important;
  border-radius: 12px !important;
  box-shadow: 0 10px 40px rgba(5, 150, 105, 0.4), 0 4px 20px rgba(0, 0, 0, 0.2) !important;
  max-width: 420px !important;
  width: auto !important;
  min-width: 300px !important;
  opacity: 0 !important;
  transform: translateX(calc(100% + 100px)) !important;
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) !important;
  backdrop-filter: blur(10px) !important;
  -webkit-backdrop-filter: blur(10px) !important;
  pointer-events: none !important;
  font-family: "Source Code Pro", monospace !important;
}

.notification.show {
  opacity: 1 !important;
  transform: translateX(0) !important;
  pointer-events: all !important;
}

.notification.success {
  background: linear-gradient(135deg, #10b981, #059669) !important;
  box-shadow: 0 10px 40px rgba(5, 150, 105, 0.5), 0 4px 20px rgba(0, 0, 0, 0.3) !important;
}

.notification-icon {
  font-size: 1.5rem !important;
  color: #ffffff !important;
  flex-shrink: 0 !important;
  font-weight: bold !important;
  line-height: 1 !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  width: 32px !important;
  height: 32px !important;
  background: rgba(255, 255, 255, 0.25) !important;
  border-radius: 50% !important;
}

.notification-message {
  flex: 1 !important;
  color: #ffffff !important;
  font-size: 0.95rem !important;
  line-height: 1.5 !important;
  font-weight: 600 !important;
  margin: 0 !important;
}

.notification-close {
  background: rgba(255, 255, 255, 0.2) !important;
  border: none !important;
  color: #ffffff !important;
  font-size: 1.5rem !important;
  cursor: pointer !important;
  padding: 0 !important;
  width: 28px !important;
  height: 28px !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  border-radius: 50% !important;
  transition: all 0.2s ease !important;
  flex-shrink: 0 !important;
  line-height: 1 !important;
  font-weight: bold !important;
  margin-left: 0.5rem !important;
}

.notification-close:hover,
.notification-close:focus {
  background: rgba(255, 255, 255, 0.35) !important;
  transform: scale(1.1) !important;
  outline: none !important;
}

@media (max-width: 768px) {
  .notification {
    top: 16px !important;
    right: 16px !important;
    left: 16px !important;
    max-width: none !important;
    width: auto !important;
    min-width: auto !important;
    padding: 1rem 1.2rem !important;
    transform: translateY(-100px) !important;
  }

  .notification.show {
    transform: translateY(0) !important;
  }

  .notification-icon {
    font-size: 1.3rem !important;
    width: 28px !important;
    height: 28px !important;
  }

  .notification-close {
    width: 24px !important;
    height: 24px !important;
    font-size: 1.3rem !important;
  }
}

@media (max-width: 480px) {
  .notification {
    top: 12px !important;
    right: 12px !important;
    left: 12px !important;
    padding: 0.9rem 1rem !important;
    border-radius: 10px !important;
  }

  .notification-message {
    font-size: 0.9rem !important;
  }
}

/* ============================================
   Reduced Motion (Accessibility)
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .observer-target {
    opacity: 1;
    transform: none;
  }
}

/* ============================================
   Simple Notification Styles
   ============================================ */
.simple-notification {
  position: absolute;
  top: 24px;
  right: 24px;
  z-index: 99999;
  display: none;
  padding: 16px 24px;
  background: linear-gradient(135deg, #10b981, #059669);
  color: #ffffff;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  box-shadow: 0 8px 24px rgba(16, 185, 129, 0.4), 0 4px 12px rgba(0, 0, 0, 0.2);
  transform: translateX(calc(100% + 50px));
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  min-width: 280px;
  animation: slideInRight 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.simple-notification p {
  margin: 0;
  padding: 0;
  line-height: 1.5;
}

@keyframes slideInRight {
  from {
    transform: translateX(calc(100% + 50px));
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@media (max-width: 768px) {
  .simple-notification {
    top: 16px;
    right: 16px;
    left: 16px;
    font-size: 14px;
    padding: 14px 20px;
    min-width: auto;
  }
}

/* ============================================
   Dark Mode Support (if needed in future)
   ============================================ */
@media (prefers-color-scheme: light) {
  /* Site is already dark, but can add light mode variant here if needed */
}