/* Prevent scrollbar flash on page load */
html,
body {
  scrollbar-width: none; /* Firefox */
  -ms-overflow-style: none; /* Internet Explorer 10+ */
}

html::-webkit-scrollbar,
body::-webkit-scrollbar {
  display: none; /* Chrome, Safari, Opera */
}

/* CSS Variables */
:root {
  /* Colors - Scooter Theme */
  --primary-color: #00d4ff;
  --secondary-color: #ff6b35;
  --accent-color: #ffd23f;
  --background-color: #1a1a2e;
  --surface-color: #16213e;
  --text-primary: #ffffff;
  --text-secondary: #e8f4fd;
  --text-muted: #a4b0be;

  /* Typography */
  --font-family-primary: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  --font-family-secondary: "Georgia", serif;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 4rem;

  /* Border radius */
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 16px;
  --border-radius-xl: 24px;

  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.2);

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* Breakpoints */
  --mobile: 360px;
  --tablet: 768px;
  --desktop: 1280px;
}

/* Loading animation */
.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--background-color) 0%, #0f3460 100%);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 10000;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loading-screen.hidden {
  opacity: 0;
  visibility: hidden;
}

.loading-animation {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
}

.loading-spinner {
  width: 60px;
  height: 60px;
  border: 4px solid rgba(255, 255, 255, 0.1);
  border-top: 4px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.loading-text {
  color: var(--text-primary);
  font-size: 1.2rem;
  font-weight: 600;
  text-align: center;
}

.loading-dots {
  display: flex;
  gap: 0.5rem;
  margin-top: var(--spacing-sm);
}

.loading-dot {
  width: 8px;
  height: 8px;
  background: var(--primary-color);
  border-radius: 50%;
  animation: pulse 1.5s ease-in-out infinite;
}

.loading-dot:nth-child(2) {
  animation-delay: 0.2s;
}

.loading-dot:nth-child(3) {
  animation-delay: 0.4s;
}

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

/* Reset and base styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
  overflow-y: scroll;
}

/* Hide scrollbar but keep functionality */
html {
  scrollbar-width: none; /* Firefox */
  -ms-overflow-style: none; /* Internet Explorer 10+ */
}

html::-webkit-scrollbar {
  display: none; /* Chrome, Safari, Opera */
}

body {
  font-family: var(--font-family-primary);
  line-height: 1.6;
  color: var(--text-primary);
  background: linear-gradient(135deg, var(--background-color) 0%, #0f3460 100%);
  min-height: 100vh;
  overflow-x: hidden;
  overflow-y: scroll;
}

/* Hide scrollbar but keep functionality */
body {
  scrollbar-width: none; /* Firefox */
  -ms-overflow-style: none; /* Internet Explorer 10+ */
}

body::-webkit-scrollbar {
  display: none; /* Chrome, Safari, Opera */
}

/* Reset lists */
ul,
ol {
  list-style: none;
}

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

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

/* Reset buttons */
button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: clamp(2rem, 5vw, 4rem);
}

h2 {
  font-size: clamp(1.5rem, 4vw, 3rem);
}

h3 {
  font-size: clamp(1.25rem, 3vw, 2rem);
}

p {
  margin-bottom: var(--spacing-sm);
  font-size: 1rem;
}

/* Utility classes */
.text-center {
  text-align: center;
}

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

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

.flex {
  display: flex;
}

.flex-column {
  flex-direction: column;
}

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

.flex-between {
  justify-content: space-between;
}

.flex-wrap {
  flex-wrap: wrap;
}

.gap-sm {
  gap: var(--spacing-sm);
}

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

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

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes slideInRight {
  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% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
  100% {
    transform: scale(1);
  }
}

/* Animation classes */
.fade-in {
  animation: fadeIn 0.6s ease-out;
}

.slide-in-left {
  animation: slideInLeft 0.6s ease-out;
}

.slide-in-right {
  animation: slideInRight 0.6s ease-out;
}

.bounce {
  animation: bounce 2s infinite;
}

.pulse {
  animation: pulse 2s infinite;
}

/* Responsive breakpoints */
@media (min-width: 768px) {
  .container {
    padding: 0 var(--spacing-md);
  }
}

@media (min-width: 1280px) {
  .container {
    padding: 0 var(--spacing-lg);
  }
}

/* Mobile header spacing */
@media (max-width: 767px) {
  main {
    padding-top: 75px;
  }

  .hero-section {
    padding-top: 75px;
  }
}

/* Hide scrollbar for mobile menu */
body.menu-open {
  overflow: hidden;
}

/* Custom scrollbar - hidden by default */
::-webkit-scrollbar {
  width: 0px;
  display: none;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: transparent;
  border-radius: 0;
}

::-webkit-scrollbar-thumb:hover {
  background: transparent;
}

/* Back to top button */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--primary-color);
  color: white;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-normal);
  z-index: 1000;
  box-shadow: var(--shadow-md);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: var(--accent-color);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

/* Message styles for forms */
.message {
  padding: var(--spacing-md);
  border-radius: var(--border-radius-md);
  margin-bottom: var(--spacing-md);
  font-weight: 600;
}

.message.success {
  background: rgba(46, 213, 115, 0.2);
  color: #2ed573;
  border: 1px solid #2ed573;
}

.message.error {
  background: rgba(255, 71, 87, 0.2);
  color: #ff4757;
  border: 1px solid #ff4757;
}

/* Loading button state */
.submit-btn.loading {
  opacity: 0.7;
  cursor: not-allowed;
}

.submit-btn.loading::after {
  content: "";
  position: absolute;
  width: 20px;
  height: 20px;
  border: 2px solid transparent;
  border-top: 2px solid white;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-left: 10px;
}