/*-----------------------------------*\
  # RESET & BASE
\*-----------------------------------*/

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

html {
  font-size: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-family-primary);
  font-size: var(--text-base);
  font-weight: var(--font-normal);
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  background-image: radial-gradient(circle at 10% 10%, rgba(157, 107, 238, 0.03) 0%, transparent 20%),
    radial-gradient(circle at 90% 30%, rgba(1, 164, 247, 0.03) 0%, transparent 25%),
    radial-gradient(circle at 60% 85%, rgba(1, 211, 210, 0.03) 0%, transparent 30%),
    radial-gradient(circle at 15% 60%, rgba(220, 40, 111, 0.03) 0%, transparent 20%);
  background-attachment: fixed;
  overflow-x: hidden;
  transition: background-color var(--transition-normal) var(--transition-ease),
    color var(--transition-normal) var(--transition-ease);
}

body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(circle at 20% 20%, rgba(1, 211, 210, 0.1) 0%, transparent 25%),
    radial-gradient(circle at 80% 40%, rgba(157, 107, 238, 0.1) 0%, transparent 30%),
    radial-gradient(circle at 40% 70%, rgba(1, 164, 247, 0.1) 0%, transparent 25%);
  opacity: 0.1;
  z-index: -1;
  animation: floatingLight 8s ease-in-out infinite;
  pointer-events: none;
}

@keyframes floatingLight {
  0% { opacity: 0.1; }
  50% { opacity: 0.2; }
  100% { opacity: 0.1; }
}

/* Light Mode */
.light-mode {
  --color-bg-primary: var(--color-light-bg-primary);
  --color-bg-secondary: var(--color-light-bg-secondary);
  --color-bg-tertiary: var(--color-light-bg-tertiary);
  --color-text-primary: var(--color-light-text-primary);
  --color-text-secondary: var(--color-light-text-secondary);
  --color-text-tertiary: var(--color-light-text-tertiary);
  --color-border: var(--color-light-border);
}

h1, h2, h3, h4, h5, h6 {
  line-height: 1.2;
  font-weight: var(--font-bold);
  color: var(--color-text-primary);
}

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

a:hover {
  color: var(--color-cyan-600);
}

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

button, input, textarea {
  font: inherit;
  border: none;
  outline: none;
  background: none;
  color: inherit;
}

button {
  cursor: pointer;
}

ul, ol {
  list-style: none;
}

::-webkit-scrollbar {
  width: 12px;
}

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

::-webkit-scrollbar-thumb {
  background: linear-gradient(to bottom, var(--color-cyan-600), var(--color-purple-500));
  border-radius: var(--rounded-full);
  border: 3px solid var(--color-bg-secondary);
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(to bottom, var(--color-teal-600), var(--color-blue-500));
}

::selection {
  background: var(--color-purple-500);
  color: white;
}

/*-----------------------------------*\
  # PRELOADER
\*-----------------------------------*/

.preloader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-blue-950);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: var(--z-50);
  transition: opacity 0.6s ease-out, visibility 0.6s ease-out;
}

.preloader.loaded {
  opacity: 0;
  visibility: hidden;
}

.preloader-content {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}

.preloader-content::before {
  content: "";
  position: absolute;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(1, 164, 247, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  animation: pulsePreloader 2s ease-in-out infinite;
  z-index: -1;
}

@keyframes pulsePreloader {
  0% { transform: scale(0.8); opacity: 0.2; }
  50% { transform: scale(1.2); opacity: 0.5; }
  100% { transform: scale(0.8); opacity: 0.2; }
}

.preloader-logo {
  display: flex;
  margin-bottom: 2rem;
  position: relative;
}

.preloader-logo::after {
  content: "";
  position: absolute;
  bottom: -15px;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 4px;
  background: linear-gradient(to right, transparent, var(--color-teal-600), var(--color-purple-500), transparent);
  border-radius: var(--rounded-full);
}

.preloader-logo .letter {
  color: var(--color-text-primary);
  font-size: 2.5rem;
  font-weight: var(--font-bold);
  margin: 0 2px;
  animation: letter-animation 1.2s infinite alternate;
  text-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
}

.preloader-logo .letter:nth-child(1) { animation-delay: 0s; color: var(--color-teal-500); }
.preloader-logo .letter:nth-child(2) { animation-delay: 0.2s; color: var(--color-cyan-600); }
.preloader-logo .letter:nth-child(3) { animation-delay: 0.4s; color: var(--color-purple-500); }
.preloader-logo .letter:nth-child(4) { animation-delay: 0.6s; color: var(--color-yellow-400); }
.preloader-logo .letter:nth-child(5) { animation-delay: 0.8s; color: var(--color-pink-600); }
.preloader-logo .letter:nth-child(6) { animation-delay: 1s; color: var(--color-teal-500); }

@keyframes letter-animation {
  0% { transform: translateY(0) scale(1); filter: brightness(1); }
  100% { transform: translateY(-10px) scale(1.1); filter: brightness(1.2); text-shadow: 0 0 15px currentColor; }
}

.preloader-spinner {
  width: 80px;
  height: 80px;
  position: relative;
  margin-bottom: 2rem;
}

.spinner-dot {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  position: absolute;
  background-color: var(--color-cyan-600);
  animation: preloader-animation 1.5s infinite ease-in-out;
  filter: drop-shadow(0 0 8px currentColor);
}

.spinner-dot:nth-child(1) { top: 0; left: 50%; transform: translateX(-50%); background-color: var(--color-cyan-600); animation-delay: 0s; }
.spinner-dot:nth-child(2) { bottom: 12px; right: 0; background-color: var(--color-purple-500); animation-delay: 0.5s; }
.spinner-dot:nth-child(3) { bottom: 12px; left: 0; background-color: var(--color-yellow-400); animation-delay: 1s; }

@keyframes preloader-animation {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.5); opacity: 0.7; }
}

.preloader-text {
  font-size: var(--text-lg);
  font-weight: var(--font-medium);
  margin-bottom: 1.5rem;
  color: var(--color-text-secondary);
  letter-spacing: 0.05em;
  position: relative;
  display: inline-block;
}

.preloader-text::after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(to right, transparent, var(--color-teal-500), var(--color-purple-500), transparent);
  animation: lineGrow 2s ease-in-out infinite;
}

@keyframes lineGrow {
  0% { width: 0; left: 50%; }
  50% { width: 100%; left: 0; }
  100% { width: 0; left: 50%; }
}

.preloader-progress {
  width: 280px;
  height: 8px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: var(--rounded-full);
  overflow: hidden;
  position: relative;
}

.preloader-progress::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: var(--rounded-full);
  box-shadow: 0 0 10px rgba(1, 164, 247, 0.5);
  animation: glow 1.5s ease-in-out infinite;
}

@keyframes glow {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

.preloader-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--color-teal-500), var(--color-cyan-600), var(--color-purple-500), var(--color-pink-600));
  background-size: 300% 100%;
  animation: gradientShift 2s ease infinite;
  width: 0;
  border-radius: var(--rounded-full);
  transition: width 0.3s ease-out;
  position: relative;
}

.preloader-progress-bar::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 20px;
  height: 100%;
  background: rgba(255, 255, 255, 0.3);
  filter: blur(5px);
}

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

/*-----------------------------------*\
  # UTILITIES
\*-----------------------------------*/

.container {
  width: 96%;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.section {
  padding-top: var(--spacing-20);
  padding-bottom: var(--spacing-20);
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-12);
  position: relative;
}

.section-header::before {
  content: "";
  position: absolute;
  top: -30px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--color-cyan-600), var(--color-purple-500));
  border-radius: var(--rounded-full);
  opacity: 0.7;
}

.section-title {
  font-size: var(--text-4xl);
  font-weight: var(--font-bold);
  margin-bottom: var(--spacing-4);
  position: relative;
  display: inline-block;
  color: transparent;
  background: linear-gradient(135deg, var(--color-text-primary) 40%, var(--color-cyan-600) 60%, var(--color-purple-500));
  -webkit-background-clip: text;
  background-clip: text;
  animation: titleGradient 5s linear infinite;
  background-size: 200% auto;
}

@keyframes titleGradient {
  to { background-position: 200% center; }
}

.section-title::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -8px;
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--color-cyan-600), var(--color-purple-500));
  border-radius: var(--rounded-full);
  transform: translateX(-50%);
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-tertiary);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.text-gradient {
  background: linear-gradient(to right, var(--color-cyan-600), var(--color-purple-500));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: transparent;
  position: relative;
}

.highlight {
  position: relative;
  display: inline-block;
  z-index: 1;
}

.highlight::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 35%;
  background: linear-gradient(90deg, rgba(1, 164, 247, 0.3), rgba(1, 211, 210, 0.3), rgba(157, 107, 238, 0.3));
  z-index: -1;
  border-radius: var(--rounded-sm);
  filter: blur(4px);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-2) var(--spacing-4);
  background: rgba(1, 164, 247, 0.1);
  border: 1px solid rgba(1, 164, 247, 0.2);
  border-radius: var(--rounded-full);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-cyan-600);
  margin-bottom: var(--spacing-4);
  position: relative;
  overflow: hidden;
  box-shadow: 0 0 15px rgba(1, 164, 247, 0.1);
  backdrop-filter: blur(5px);
}

.badge i {
  margin-right: var(--spacing-2);
  font-size: 1.1em;
  color: var(--color-cyan-500);
  filter: drop-shadow(0 0 5px rgba(1, 164, 247, 0.5));
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-3) var(--spacing-6);
  border-radius: var(--rounded-lg);
  font-weight: var(--font-medium);
  font-size: var(--text-base);
  transition: all var(--transition-normal) var(--transition-ease);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  z-index: 1;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.btn i {
  margin-right: var(--spacing-2);
  font-size: 1.25em;
  transition: transform 0.3s ease;
}

.btn:hover i {
  transform: translateX(-3px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-cyan-600), var(--color-teal-600));
  color: white;
  border: none;
}

.btn-primary:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(249, 250, 250, 0.3), 0 0 10px rgba(255, 255, 255, 0.2);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--color-cyan-600);
  color: var(--color-text-primary);
}

.btn-outline:hover {
  color: white;
  border-color: transparent;
  background: linear-gradient(135deg, var(--color-cyan-600), var(--color-teal-600));
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(1, 164, 247, 0.3);
}