/**
 * Base Styles - Reset y estilos fundamentales
 */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Rajdhani:wght@400;500;600;700&family=Inter:wght@400;500;600;700&display=swap');

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Background pattern */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(circle at 20% 20%, rgba(231, 76, 60, 0.04) 0%, transparent 40%),
    radial-gradient(circle at 80% 80%, rgba(231, 76, 60, 0.03) 0%, transparent 40%),
    radial-gradient(circle at 50% 50%, rgba(255, 107, 91, 0.02) 0%, transparent 60%);
  pointer-events: none;
  z-index: -1;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

/* Links */
a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-base);
}

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

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

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

/* Buttons reset */
button {
  font-family: inherit;
  font-size: inherit;
  border: none;
  background: none;
  cursor: pointer;
  color: inherit;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Inputs */
input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  background: var(--color-bg-lighter);
  border: 2px solid rgba(0, 212, 255, 0.2);
  border-radius: var(--radius-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  transition: border-color var(--transition-base);
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

/* Selection */
::selection {
  background: var(--color-primary);
  color: var(--color-bg);
}

::-moz-selection {
  background: var(--color-primary);
  color: var(--color-bg);
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

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

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--color-primary), #ff6b5b);
  border-radius: var(--radius-sm);
  border: 2px solid var(--color-bg-lighter);
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, #ff6b5b, var(--color-primary));
  box-shadow: 0 0 10px rgba(231, 76, 60, 0.3);
}

/* Layout containers */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.container-fluid {
  width: 100%;
  padding: 0 var(--spacing-lg);
}

/* Main layout */
#app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(var(--blur-md));
  border-bottom: 1px solid rgba(0, 212, 255, 0.1);
}

main {
  flex: 1;
  padding: var(--spacing-2xl) 0;
}

footer {
  margin-top: auto;
  border-top: 1px solid rgba(0, 212, 255, 0.1);
  padding: var(--spacing-2xl) 0;
}

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

.hidden { display: none !important; }
.visible { display: block !important; }

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

/* Loading state */
.loading {
  opacity: 0.5;
  pointer-events: none;
}

/* Skeleton loading */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-bg-lighter) 0%,
    rgba(0, 212, 255, 0.1) 50%,
    var(--color-bg-lighter) 100%
  );
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s ease-in-out infinite;
  border-radius: var(--radius-sm);
}

@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Responsive helpers */
@media (width <= 768px) {
  body {
    font-size: var(--font-size-sm);
  }

  .container,
  .container-fluid {
    padding: 0 var(--spacing-md);
  }

  main {
    padding: var(--spacing-xl) 0;
  }
}