/* ===== CSS Custom Properties ===== */
:root {
  /* Colors */
  --primary-color: #75AFEF;
  --primary-gradient: linear-gradient(135deg, #75AFEF 0%, #79EDAF 100%);
  --secondary-color: #79EDAF;
  --accent-color: #FF3B30;
  --text-primary: rgba(62, 61, 65, 0.9);
  --text-secondary: #868586;
  --text-tertiary: #A1A1A6;
  --bg-primary: #FFFFFF;
  --bg-secondary: rgba(134, 133, 134, 0.1);
  --bg-tertiary: rgba(134, 133, 134, 0.05);
  --border-color: #E5E5E7;
  --shadow-light: rgba(62, 61, 65, 0.05);
  --shadow-medium: rgba(62, 61, 65, 0.1);
  --shadow-heavy: rgba(62, 61, 65, 0.15);
  
  /* Typography */
  --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-weight-light: 300;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  
  /* Border radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-medium: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Breakpoints */
  --container-max-width: 1200px;
}

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

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

/* Optimize scrolling performance */
* {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  font-weight: var(--font-weight-regular);
  line-height: 1.6;
  color: var(--text-primary);
  background: linear-gradient(135deg, rgba(117, 175, 239, 0.3) 0%, rgba(121, 237, 175, 0.3) 50%, rgba(134, 133, 134, 0.1) 100%);
  min-height: 100vh;
  overflow-x: hidden;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition-fast);
}

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

ul {
  list-style: none;
}

/* ===== Utility Classes ===== */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.gradient-text {
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-md);
  background: linear-gradient(135deg, #75AFEF 0%, #79EDAF 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.section-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ===== Animation Keyframes ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-10px);
  }
  60% {
    transform: translateY(-5px);
  }
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px) rotate(0deg);
  }
  50% {
    transform: translateY(-20px) rotate(180deg);
  }
}

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(60px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInFromLeft {
  from {
    opacity: 0;
    transform: translateX(-60px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInFromRight {
  from {
    opacity: 0;
    transform: translateX(60px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes gradientShift {
  0%, 100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

@keyframes glowPulse {
  0%, 100% {
    opacity: 0.6;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.05);
  }
}

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

@keyframes expandWidth {
  from {
    width: 0;
  }
  to {
    width: 100px;
  }
}

@keyframes fadeInScale {
  from {
    opacity: 0;
    transform: scale(0);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes shineSweep {
  0% {
    left: -100%;
  }
  100% {
    left: 100%;
  }
}



/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(117, 175, 239, 0.2);
  z-index: 1000;
  transition: var(--transition-medium);
}

.nav-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 90px;
  gap: var(--space-md);
}

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

.nav-logo .logo {
  height: 70px;
  width: 70px;
  border-radius: 12px;
  transition: var(--transition-fast);
}

.nav-text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.nav-title {
  font-size: 1.75rem;
  font-weight: var(--font-weight-bold);
  margin: 0;
  background: linear-gradient(135deg, #75AFEF 0%, #79EDAF 50%, #75AFEF 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  animation: gradientShift 3s ease-in-out infinite;
  line-height: 1.1;
}

.nav-subtitle {
  font-size: 1rem;
  font-weight: var(--font-weight-medium);
  margin: 0;
  margin-top: 2px;
  background: linear-gradient(180deg, #2D4A6B 0%, #3A5A8A 30%, #4A7CAB 50%, #3A5A8A 70%, #2D4A6B 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  opacity: 0.9;
  line-height: 1.2;
}

.nav-logo .logo:hover {
  transform: scale(1.05);
}

.hero-category {
  display: flex;
  justify-content: center;
  animation: fadeInUp 1s ease 0.5s both;
}

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

.nav-link {
  font-weight: var(--font-weight-medium);
  color: #3E3D41;
  position: relative;
  transition: var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(135deg, #75AFEF 0%, #79EDAF 100%);
  transition: var(--transition-fast);
  transform: translateX(-50%);
}

.nav-link:hover {
  background: linear-gradient(135deg, #75AFEF 0%, #79EDAF 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: var(--space-xs);
  background: none;
  border: none;
  cursor: pointer;
  z-index: 1000;
  position: relative;
}

.nav-toggle span {
  width: 25px;
  height: 3px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition-fast);
}

/* ===== Hero Section ===== */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  background: linear-gradient(135deg, rgba(117, 175, 239, 0.3) 0%, rgba(121, 237, 175, 0.3) 50%, rgba(134, 133, 134, 0.1) 100%);
  padding: var(--space-3xl) 0 var(--space-md) 0;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(117, 175, 239, 0.1) 0%, transparent 70%);
  animation: pulse 8s ease-in-out infinite;
}

.hero-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-2xl);
  position: relative;
  z-index: 1;
}

.hero-title-section {
  text-align: center;
  animation: fadeInDown 1s ease 0.2s both;
}

.hero-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.hero-left {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-right {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  max-width: 450px;
  margin-left: auto;
  text-align: left;
}

.hero-right .promo-text {
  font-size: 1.125rem;
  line-height: 1.6;
  margin: 0;
}

.hero-right .hero-description {
  margin: 0;
}

.hero-right .hero-description p {
  font-size: 1rem;
  line-height: 1.7;
  margin: 0;
  color: var(--text-secondary);
}

.hero-content {
  text-align: center;
  animation: fadeInLeft 1s ease;
  max-width: 800px;
  margin: 0 auto;
}

.welcome-section {
  margin-bottom: var(--space-xl);
  animation: fadeInDown 1s ease 0.2s both;
}

.welcome-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: var(--font-weight-bold);
  line-height: 1.1;
  margin: 0 0 var(--space-md) 0;
  background: linear-gradient(135deg, #A78BFA 0%, #FB923C 50%, #A78BFA 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  animation: gradientShift 3s ease-in-out infinite;
  white-space: nowrap;
  text-align: center;
  text-shadow: 0 2px 4px rgba(167, 139, 250, 0.3);
}

.welcome-subtitle {
  text-align: center;
  margin-bottom: 0;
}

.subtitle-main {
  font-size: 1.5rem;
  font-weight: 600;
  color: #8B5CF6;
  margin-bottom: var(--space-sm);
  text-shadow: 0 2px 4px rgba(139, 92, 246, 0.4);
}

.subtitle-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
  opacity: 0.9;
}

.download-section {
  display: flex;
  justify-content: center;
  margin-top: var(--space-lg);
}

.download-button {
  display: flex;
  align-items: center;
  gap: 12px;
  background: linear-gradient(135deg, #000000 0%, #1a1a1a 50%, #000000 100%);
  color: white;
  padding: 12px;
  border-radius: var(--radius-xl);
  text-decoration: none;
  font-weight: 700;
  font-size: 1rem;
  transition: all var(--transition-medium);
  box-shadow: 
    0 8px 32px rgba(0, 0, 0, 0.4),
    0 4px 16px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  width: fit-content;
}

.download-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  animation: buttonShine 2.5s ease-in-out infinite;
  z-index: 1;
}

.download-button:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 
    0 12px 48px rgba(0, 0, 0, 0.5),
    0 6px 24px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

@keyframes buttonShine {
  0% {
    left: -100%;
  }
  50% {
    left: 100%;
  }
  100% {
    left: 100%;
  }
}

.download-app-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  flex-shrink: 0;
  position: relative;
  z-index: 2;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

.download-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  position: relative;
  z-index: 2;
  line-height: 1.1;
}

.download-line-1 {
  color: white;
  font-size: 0.8rem;
  font-weight: 400;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
  letter-spacing: 0.3px;
  margin-bottom: 2px;
}

.download-line-2 {
  color: white;
  font-size: 1.1rem;
  font-weight: 700;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  letter-spacing: 0.5px;
}



.app-name {
  font-size: clamp(3.5rem, 10vw, 6rem);
  font-weight: var(--font-weight-bold);
  line-height: 1.1;
  margin-bottom: var(--space-sm);
  background: linear-gradient(135deg, #75AFEF 0%, #79EDAF 50%, #75AFEF 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  text-shadow: none;
  animation: gradientShift 3s ease-in-out infinite;
  position: relative;
  display: inline-block;
}

.app-name::before {
  content: '';
  position: absolute;
  top: -10px;
  left: -20px;
  right: -20px;
  bottom: -10px;
  background: linear-gradient(135deg, rgba(117, 175, 239, 0.2), rgba(121, 237, 175, 0.2));
  border-radius: var(--radius-lg);
  z-index: -1;
  filter: blur(20px);
  animation: glowPulse 2s ease-in-out infinite;
  animation-delay: 0s;
}

.app-subtitle {
  font-size: 2rem;
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-md);
  background: linear-gradient(180deg, #2D4A6B 0%, #3A5A8A 30%, #4A7CAB 50%, #3A5A8A 70%, #2D4A6B 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  text-shadow: 
    0 0 8px rgba(255, 255, 255, 0.2),
    0 0 16px rgba(255, 255, 255, 0.15),
    0 0 24px rgba(255, 255, 255, 0.1);
  animation: fadeInUp 1s ease 0.5s both;
  position: relative;
}

.app-subtitle::before {
  content: '';
  position: absolute;
  top: -6px;
  left: 10%;
  right: 10%;
  bottom: -6px;
  background: radial-gradient(ellipse, rgba(255, 255, 255, 0.3) 0%, rgba(255, 255, 255, 0.15) 40%, rgba(255, 255, 255, 0.08) 70%, transparent 100%);
  border-radius: var(--radius-sm);
  z-index: -1;
  filter: blur(10px);
}

.app-meta {
  margin-bottom: var(--space-md);
}

.app-category {
  display: inline-block;
  background: linear-gradient(135deg, #75AFEF, #79EDAF);
  color: white;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-full);
  font-size: 1rem;
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 1px;
  box-shadow: 0 8px 32px rgba(117, 175, 239, 0.4);
  border: 2px solid rgba(255, 255, 255, 0.3);
  position: relative;
  overflow: hidden;
  transition: transform 0.3s ease;
}

.app-category::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  animation: shineSweep 2s ease-in-out infinite;
  animation-delay: 0s;
}

.app-category::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.8s ease;
  z-index: 1;
}



.app-promo {
  margin-bottom: var(--space-2xl);
}

.promo-text {
  font-size: 1.25rem;
  line-height: 1.6;
  font-weight: var(--font-weight-medium);
  background: linear-gradient(135deg, #75AFEF 0%, #79EDAF 50%, #75AFEF 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  text-shadow: 
    0 0 8px rgba(255, 255, 255, 0.2),
    0 0 16px rgba(255, 255, 255, 0.15),
    0 0 24px rgba(255, 255, 255, 0.1);
  position: relative;
  animation: gradientShift 3s ease-in-out infinite;
}

.promo-text::before {
  content: '';
  position: absolute;
  top: -4px;
  left: 5%;
  right: 5%;
  bottom: -4px;
  background: radial-gradient(ellipse, rgba(255, 255, 255, 0.3) 0%, rgba(255, 255, 255, 0.15) 40%, rgba(255, 255, 255, 0.08) 70%, transparent 100%);
  border-radius: var(--radius-sm);
  z-index: -1;
  filter: blur(8px);
}

.hero-description {
  margin-bottom: var(--space-3xl);
  margin-top: var(--space-lg);
  padding: var(--space-md);
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(117, 175, 239, 0.2);
  animation: fadeInUp 1s ease 0.3s both;
}

.hero-description p {
  font-size: 1.125rem;
  color: rgba(62, 61, 65, 0.9);
  margin: 0;
  line-height: 1.6;
  text-shadow: 0 1px 3px rgba(255, 255, 255, 0.3);
}

.hero-description strong {
  color: #E34234;
  font-weight: var(--font-weight-semibold);
  text-shadow: 0 1px 3px rgba(227, 66, 52, 0.3);
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--space-xl);
  margin-bottom: var(--space-xl);
}



.hero-image {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
  animation: fadeInRight 1s ease;
}

.hero-logo {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 280px;
  height: 280px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 30px;
  padding: 40px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.hero-logo:hover {
  transform: scale(1.1) translateY(-8px);
  box-shadow: 0 25px 80px rgba(0, 0, 0, 0.15);
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.hero-logo-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 20px;
}



.hero-scroll {
  position: absolute;
  bottom: var(--space-lg);
  left: 50%;
  transform: translateX(-50%);
  animation: fadeInUp 1s ease 0.5s both;
}

.scroll-indicator {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: var(--font-weight-medium);
}

.scroll-arrow {
  width: 20px;
  height: 20px;
  border-right: 2px solid var(--primary-color);
  border-bottom: 2px solid var(--primary-color);
  transform: rotate(45deg);
  animation: bounce 2s infinite;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  font-weight: var(--font-weight-semibold);
  text-align: center;
  cursor: pointer;
  transition: var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: var(--transition-medium);
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: #3E3D41;
  color: white;
  box-shadow: 0 4px 15px rgba(62, 61, 65, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  background: linear-gradient(135deg, #3E3D41 0%, #868586 100%);
  box-shadow: 0 8px 25px rgba(62, 61, 65, 0.4);
}

.btn-secondary {
  background: white;
  color: #3E3D41;
  border: 2px solid #3E3D41;
  box-shadow: 0 4px 15px rgba(255, 255, 255, 0.8);
}

.btn-secondary:hover {
  background: #3E3D41;
  color: white;
}

.app-store-badge {
  height: 50px;
  width: auto;
  transition: var(--transition-fast);
}

.app-store-badge:hover {
  transform: scale(1.05);
}

/* ===== Features Section ===== */
.features {
  padding: var(--space-3xl) 0;
  background: linear-gradient(135deg, rgba(134, 133, 134, 0.15) 0%, rgba(117, 175, 239, 0.1) 50%, rgba(121, 237, 175, 0.1) 100%);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-2xl);
}

.feature-card {
  background: var(--bg-primary);
  padding: var(--space-2xl);
  border-radius: var(--radius-lg);
  text-align: center;
  box-shadow: 0 4px 25px var(--shadow-light);
  transition: var(--transition-medium);
  animation: fadeInUp 0.6s ease;
  border-top: 3px solid transparent;
  position: relative;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--primary-gradient);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.feature-card:nth-child(1)::before {
  background: linear-gradient(90deg, #75AFEF, #79EDAF);
}

.feature-card:nth-child(2)::before {
  background: linear-gradient(90deg, #79EDAF, #75AFEF);
}

.feature-card:nth-child(3)::before {
  background: linear-gradient(90deg, #868586, #75AFEF);
}

.feature-card:nth-child(4)::before {
  background: linear-gradient(90deg, #75AFEF, #868586);
}

.feature-card:nth-child(even) {
  animation-delay: 0.1s;
}

.feature-card:nth-child(3n) {
  animation-delay: 0.2s;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 40px var(--shadow-medium);
}

.feature-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto var(--space-md);
  padding: var(--space-md);
  background: var(--primary-gradient);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

.feature-icon svg {
  width: 28px;
  height: 28px;
}

.feature-title {
  font-size: 1.5rem;
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-md);
  color: #3E3D41;
}

.feature-description {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===== Screenshots Section ===== */
.screenshots {
  padding: var(--space-3xl) 0;
  background: linear-gradient(135deg, rgba(121, 237, 175, 0.08) 0%, var(--bg-primary) 50%, rgba(134, 133, 134, 0.08) 100%);
}

.screenshots-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-lg);
}

.screenshot-item {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 8px 30px var(--shadow-medium);
  transition: var(--transition-medium);
  animation: fadeInUp 0.6s ease;
  border: 2px solid transparent;
  background: linear-gradient(white, white) padding-box, var(--primary-gradient) border-box;
}

.screenshot-item:nth-child(2) {
  animation-delay: 0.1s;
}

.screenshot-item:nth-child(3) {
  animation-delay: 0.2s;
}

.screenshot-item:nth-child(4) {
  animation-delay: 0.3s;
}

.screenshot-item:hover {
  transform: scale(1.05);
  box-shadow: 0 12px 40px var(--shadow-heavy);
}

.screenshot-image {
  width: 100%;
  height: auto;
  transition: var(--transition-medium);
}





.app-meta {
  margin-top: var(--space-md);
}

.app-category {
  display: inline-block;
  padding: var(--space-xs) var(--space-md);
  background: var(--primary-gradient);
  color: white;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.5px;
}

.app-promo {
  max-width: 800px;
  margin: var(--space-2xl) auto 0;
  text-align: center;
}

.promo-text {
  font-size: 1.375rem;
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
  line-height: 1.6;
  background: linear-gradient(135deg, #3E3D41 0%, #75AFEF 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* ===== Mission Page Styles ===== */
.mission-content-section {
  padding: var(--space-3xl) 0 var(--space-3xl) 0;
  margin-top: 90px;
  background: linear-gradient(135deg, 
    rgba(117, 175, 239, 0.03) 0%, 
    rgba(255, 255, 255, 0.8) 50%, 
    rgba(121, 237, 175, 0.03) 100%);
  position: relative;
  will-change: auto;
  transform: translateZ(0);
}

.mission-content-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(117,175,239,0.05)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
  opacity: 0.3;
  pointer-events: none;
}

.mission-title {
  font-size: 3rem;
  font-weight: var(--font-weight-bold);
  text-align: center;
  background: linear-gradient(135deg, #75AFEF 0%, #79EDAF 50%, #75AFEF 100%);
  background-size: 200% 200%;
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: gradientShift 4s ease-in-out infinite;
  margin-bottom: var(--space-md);
  position: relative;
  z-index: 1;
}

.mission-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  opacity: 0.9;
  text-align: center;
  max-width: 600px;
  margin: 0 auto 50px auto;
  line-height: 1.5;
  position: relative;
  z-index: 1;
}

.mission-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.mission-statement {
  display: grid;
  gap: var(--space-xl);
}

.mission-block {
  background: rgba(255, 255, 255, 0.9);
  padding: var(--space-xl);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(10px);
  box-shadow: 
    0 8px 32px rgba(0, 0, 0, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.2);
  text-align: left;
}

.mission-block.primary {
  background: linear-gradient(135deg, 
    rgba(117, 175, 239, 0.12) 0%, 
    rgba(255, 255, 255, 0.95) 50%, 
    rgba(121, 237, 175, 0.12) 100%);
  border: 1px solid rgba(117, 175, 239, 0.2);
}

.mission-block.highlight {
  background: linear-gradient(135deg, 
    rgba(121, 237, 175, 0.15) 0%, 
    rgba(255, 255, 255, 0.95) 50%, 
    rgba(117, 175, 239, 0.15) 100%);
  border: 1px solid rgba(121, 237, 175, 0.3);
}



.mission-block h3 {
  font-size: 1.5rem;
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  margin-bottom: var(--space-md);
  background: linear-gradient(135deg, #2D4A6B 0%, #3A7C6B 50%, #2D4A6B 100%);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  position: relative;
  z-index: 1;
}

.mission-block p {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--text-primary);
  opacity: 0.9;
  position: relative;
  z-index: 1;
  margin-bottom: var(--space-md);
}

.mission-block p:last-child {
  margin-bottom: 0;
}

/* Mobile responsiveness */
@media (max-width: 768px) {
  .mission-content-section {
    padding: var(--space-xl) 0;
  }
  
  .mission-title {
    font-size: 2.2rem;
    margin-bottom: var(--space-sm);
  }
  
  .mission-subtitle {
    font-size: 1rem;
    margin-bottom: 30px;
  }
  
  .mission-block {
    padding: var(--space-lg);
  }
  
  .mission-block h3 {
    font-size: 1.3rem;
  }
  
  .mission-block p {
    font-size: 1rem;
    line-height: 1.7;
  }
}

/* ===== App Description Section ===== */
.app-description {
  padding: var(--space-3xl) 0;
  background: var(--bg-primary);
  position: relative;
}

.app-description::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
  animation: slideInFromLeft 1s ease;
}

.app-description::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--secondary-color), transparent);
  animation: slideInFromRight 1s ease 0.5s both;
}

.description-content {
  max-width: 900px;
  margin: 0 auto;
}

.description-block {
  margin-bottom: var(--space-2xl);
  padding: var(--space-2xl);
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 25px var(--shadow-light);
  transition: var(--transition-medium);
  animation: fadeInUp 0.6s ease;
}

.description-block:nth-child(2) {
  animation-delay: 0.1s;
}

.description-block:nth-child(3) {
  animation-delay: 0.2s;
}

.description-block.highlight {
  background: linear-gradient(135deg, rgba(117, 175, 239, 0.1) 0%, rgba(121, 237, 175, 0.1) 100%);
  border: 2px solid transparent;
  background-clip: padding-box;
  position: relative;
}

.description-block.highlight::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 2px;
  background: var(--primary-gradient);
  border-radius: var(--radius-lg);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: subtract;
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: source-out;
  z-index: -1;
}

.description-block p {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--text-primary);
  margin: 0;
}

.description-block:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 40px var(--shadow-medium);
}

/* ===== Core Concepts Section ===== */
.core-concepts {
  padding: var(--space-3xl) 0;
  background: transparent;
  position: relative;
  overflow: hidden;
}

.core-concepts::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -25%;
  width: 150%;
  height: 200%;
  background: radial-gradient(circle, rgba(117, 175, 239, 0.03) 0%, transparent 70%);
  animation: float 20s ease-in-out infinite;
}

.concepts-showcase {
  max-width: 1000px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.concepts-row {
  display: flex;
  justify-content: space-between;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.concepts-center {
  display: flex;
  justify-content: center;
  margin-bottom: var(--space-2xl);
}

.concept-compact {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  background: rgba(255, 255, 255, 0.9);
  padding: var(--space-lg) var(--space-xl);
  border-radius: var(--radius-xl);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: all var(--transition-medium);
  border: 1px solid rgba(117, 175, 239, 0.1);
  flex: 1;
  max-width: 400px;
  animation: slideInUp 0.8s ease;
  position: relative;
  overflow: hidden;
}

.concept-compact::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(117, 175, 239, 0.1), transparent);
  transition: left 0.6s ease;
}

.concept-compact:hover::before {
  left: 100%;
}

.concept-compact.highlight {
  background: linear-gradient(135deg, rgba(117, 175, 239, 0.15), rgba(121, 237, 175, 0.15));
  border: 2px solid var(--primary-color);
  transform: scale(1.05);
  max-width: 500px;
}

.concept-compact:nth-child(1) {
  animation-delay: 0.1s;
}

.concept-compact:nth-child(2) {
  animation-delay: 0.2s;
}

.concept-compact.highlight {
  animation-delay: 0.3s;
}

.concept-compact:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.15);
  border-color: var(--primary-color);
}

.concept-number {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--primary-gradient);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: var(--font-weight-bold);
  flex-shrink: 0;
  box-shadow: 0 4px 16px rgba(117, 175, 239, 0.3);
  transition: var(--transition-medium);
}

.concept-number.special {
  width: 80px;
  height: 80px;
  font-size: 1.75rem;
  background: linear-gradient(135deg, #75AFEF, #79EDAF, #75AFEF);
  animation: pulse 2s ease-in-out infinite;
}

.concept-content h3 {
  font-size: 1.25rem;
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  margin: 0 0 var(--space-xs) 0;
  line-height: 1.2;
}

.concept-content p {
  font-size: 1rem;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.4;
}

.concept-compact:hover .concept-number {
  transform: rotate(10deg) scale(1.1);
}

/* Flowing Connection Lines */
.concepts-showcase::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 2px;
  height: 60%;
  background: linear-gradient(180deg, var(--primary-color), transparent, var(--secondary-color));
  transform: translate(-50%, -50%);
  opacity: 0.3;
  z-index: -1;
}

/* ===== Key Features Section ===== */
.key-features {
  padding: var(--space-3xl) 0;
  background: var(--bg-primary);
}

.simple-carousel {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  margin-top: var(--space-lg);
  min-height: 400px;
}

.carousel-container {
  width: 800px;
  overflow: hidden;
}

.carousel-images {
  display: flex;
  transition: transform 0.3s ease;
  gap: 8px;
}

.image-container {
  width: 260px;
  height: auto;
  min-height: 400px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  flex-shrink: 0;
  display: flex;
  align-items: flex-start;
  background: #f8f9fa;
}

.carousel-images img {
  width: 100%;
  height: auto;
  object-fit: contain;
  display: block;
  border-radius: var(--radius-md);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.carousel-arrow {
  background: rgba(255, 255, 255, 0.9);
  border: none;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--primary-color);
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.carousel-arrow:hover {
  background: white;
  transform: scale(1.1);
  box-shadow: 0 6px 30px rgba(0, 0, 0, 0.15);
}

.carousel-arrow:active {
  transform: scale(0.95);
}

/* Mobile swipe hint - hidden on desktop */
.carousel-hint {
  display: none;
  text-align: center;
  margin-top: var(--space-sm);
  opacity: 0.7;
}

.carousel-hint-text {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: var(--font-weight-medium);
  user-select: none;
}

/* ===== Footer ===== */
.footer {
  background: linear-gradient(135deg, #3E3D41 0%, rgba(134, 133, 134, 0.9) 100%);
  color: white;
  padding: var(--space-md) 0;
}

.footer-content {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-xl);
  position: relative;
}

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

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.footer-icon {
  height: 40px;
  width: 40px;
  border-radius: 8px;
}

.footer-name {
  font-size: 1.25rem;
  font-weight: 600;
  color: white;
}

.footer-contact {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  text-align: center;
}

.footer-feedback {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.875rem;
  margin: 0;
  font-weight: var(--font-weight-medium);
}

.footer-email-container {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.footer-email-icon {
  width: 20px;
  height: 20px;
  color: rgba(255, 255, 255, 0.8);
  flex-shrink: 0;
}

.footer-email-icon svg {
  width: 100%;
  height: 100%;
}

.footer-email {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  font-size: 1rem;
  font-weight: var(--font-weight-semibold);
  transition: var(--transition-fast);
}

.footer-email:hover {
  color: white;
  text-decoration: underline;
}

.footer-copyright {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
}

.footer-copyright p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.875rem;
  margin: 0;
}

.footer-social {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-md);
}

.footer-social a {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.8);
  transition: var(--transition-fast);
}

.footer-social a:hover {
  background: var(--primary-color);
  color: white;
  transform: translateY(-2px);
}

.footer-social svg {
  width: 20px;
  height: 20px;
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.6);
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 90px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    flex-direction: column;
    padding: var(--space-lg) var(--space-md);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-medium);
    text-align: center;
    gap: var(--space-lg);
    width: 100%;
    box-sizing: border-box;
  }

  .nav-link {
    font-size: 1rem;
    padding: var(--space-sm) var(--space-lg);
    white-space: normal;
    word-wrap: break-word;
    text-align: center;
    min-width: 120px;
  }

  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
  }

  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
  }

  .hero-layout {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
    text-align: center;
  }

  .hero-left {
    order: 2;
  }

  .hero-right {
    order: 1;
    max-width: none;
    margin: 0 auto;
    text-align: center;
    padding: 0 var(--space-md);
  }

  .hero-right .promo-text,
  .hero-right .hero-description p {
    text-align: center;
  }

  .hero-image {
    gap: var(--space-md);
  }

  .nav-title {
    font-size: 1.35rem;
  }

  .nav-subtitle {
    font-size: 0.85rem;
  }

  .welcome-title {
    font-size: clamp(1.8rem, 6vw, 2.4rem);
    white-space: normal;
    line-height: 1.2;
  }



  .footer-content {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }
  
  .footer-left {
    flex-direction: column;
    gap: var(--space-sm);
  }
  
  .footer-copyright {
    position: static;
    transform: none;
    margin-top: var(--space-sm);
  }
  
  .footer-feedback {
    font-size: 0.8rem;
  }
  
  .footer-email {
    font-size: 0.9rem;
  }
  
  .footer-email-icon {
    width: 18px;
    height: 18px;
  }

  .hero-actions {
    justify-content: center;
    gap: var(--space-md);
    padding: 0 var(--space-md);
  }

  .simple-carousel {
    margin-top: var(--space-lg);
    min-height: 350px;
    padding: 0 var(--space-md);
    gap: var(--space-sm);
  }

  .carousel-container {
    width: 100%;
    max-width: calc(100vw - 2 * var(--space-md));
    overflow: hidden;
  }

  .carousel-images {
    gap: 0px;
  }

  .image-container {
    width: 100%;
    height: auto;
    min-height: 350px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    flex-shrink: 0;
    display: flex;
    align-items: flex-start;
    background: #f8f9fa;
  }

  .section-header {
    padding: 0 var(--space-md);
  }

  .app-description, 
  .core-concepts,
  .key-features {
    padding: var(--space-2xl) var(--space-md);
  }

  .concepts-showcase {
    padding: 0 var(--space-md);
  }

  .carousel-hint {
    display: block;
  }

  .carousel-arrow {
    display: none;
  }
}

@media (max-width: 480px) {
  :root {
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 0.75rem;
    --space-lg: 1rem;
    --space-xl: 1.5rem;
    --space-2xl: 2rem;
    --space-3xl: 2.5rem;
  }

  .container {
    padding: 0 var(--space-md);
  }

  .section-title {
    font-size: 1.75rem;
  }

  .section-subtitle {
    font-size: 1rem;
  }

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

  .concepts-row {
    flex-direction: column;
    gap: var(--space-md);
  }

  .concept-compact {
    flex-direction: column;
    text-align: center;
    gap: var(--space-md);
    padding: var(--space-lg);
  }

  .simple-carousel {
    margin-top: var(--space-lg);
    min-height: 300px;
    flex-direction: row;
    gap: var(--space-sm);
    padding: 0 var(--space-md);
  }

  .carousel-container {
    width: 100%;
    max-width: calc(100vw - 2 * var(--space-md));
    overflow: hidden;
  }

  .carousel-images {
    gap: 0px;
  }

  .image-container {
    width: 100%;
    height: auto;
    min-height: 300px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    flex-shrink: 0;
    display: flex;
    align-items: flex-start;
    background: #f8f9fa;
  }

  .carousel-images img {
    width: 100%;
    height: auto;
    object-fit: contain;
    border-radius: var(--radius-md);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  }

  .carousel-arrow {
    display: none;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
  }

  .hero-layout {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .hero-right {
    max-width: 320px;
    margin: 0 auto;
  }

  .hero-right .promo-text,
  .hero-right .hero-description p {
    text-align: center;
    font-size: 0.95rem;
  }

  .btn {
    width: 100%;
    max-width: 280px;
    justify-content: center;
    padding: var(--space-md) var(--space-lg);
  }

  .nav-container {
    height: 70px;
    padding: 0 var(--space-xs);
    gap: var(--space-xs);
  }

  .nav-menu {
    top: 70px;
    padding: var(--space-md);
    gap: var(--space-md);
  }

  .nav-link {
    padding: var(--space-sm) var(--space-md);
    white-space: normal;
    font-size: 0.95rem;
    word-wrap: break-word;
    text-align: center;
    min-width: 100px;
  }

  .nav-logo .logo {
    width: 50px;
    height: 50px;
  }

  .nav-title {
    font-size: 1.1rem;
  }

  .nav-subtitle {
    font-size: 0.75rem;
  }

  .mission-content-section {
    margin-top: 70px;
  }

  .hero-description {
    padding: var(--space-sm);
    margin: var(--space-md) 0;
  }

  .app-promo {
    margin-bottom: var(--space-lg);
  }

  .welcome-title {
    font-size: 2rem;
    margin-bottom: var(--space-md);
    white-space: normal;
    line-height: 1.2;
  }

  .footer-content {
    padding: var(--space-lg) var(--space-md);
  }


}

/* ===== Smooth Scroll Animation ===== */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.animated {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Loading Animation ===== */
.loading {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s ease;
}

.loading.hide {
  opacity: 0;
  pointer-events: none;
}

.loading-spinner {
  width: 50px;
  height: 50px;
  border: 3px solid var(--border-color);
  border-top: 3px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}