@import 'variables.css';
@import 'animations.css';

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'DM Sans', system-ui, sans-serif;
  background: var(--color-surface);
  color: var(--color-gray-1);
  line-height: 1.6;
  overflow-x: hidden;
  padding-top: 70px;
}

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

::-webkit-scrollbar-track {
  background: var(--color-surface-2);
}

::-webkit-scrollbar-thumb {
  background: var(--color-primary);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary-bright);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 0.5em;
  letter-spacing: -0.02em;
}

h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }

p {
  font-size: var(--fs-body);
  margin-bottom: 1em;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-base);
  cursor: pointer;
}

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

button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

/* Section Header Pattern */
.section-header {
  text-align: center;
  margin-bottom: 4rem;
  animation: fadeUp var(--transition-base);
}

.section-header h2 {
  position: relative;
  display: inline-block;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1rem;
}

.section-header .underline {
  width: 80px;
  height: 3px;
  background: var(--gradient-main);
  margin: 1rem auto;
  border-radius: 2px;
  animation: gradientShift 3s ease-in-out infinite;
  background-size: 200% 200%;
}

.section-header p {
  font-size: var(--fs-body);
  color: var(--color-gray-2);
  max-width: 600px;
  margin: 0 auto;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.container-fluid {
  padding: 0 1.5rem;
}

/* Utility Classes */
.text-gradient {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-animated {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  background-size: 300% 300%;
  animation: gradientShift 4s ease-in-out infinite;
}

.text-white {
  color: var(--color-white);
}

.text-gray { color: var(--color-gray-2); }
.text-gray-dark { color: var(--color-gray-3); }

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

.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.pt-3 { padding-top: 1.5rem; }
.pt-4 { padding-top: 2rem; }
.pt-5 { padding-top: 3rem; }

.pb-3 { padding-bottom: 1.5rem; }
.pb-4 { padding-bottom: 2rem; }
.pb-5 { padding-bottom: 3rem; }

.py-4 { padding: 2rem 0; }
.py-5 { padding: 3rem 0; }

/* Grid */
.grid {
  display: grid;
  gap: 2rem;
}

.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }

.flex {
  display: flex;
  gap: 1rem;
}

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

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

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

/* Hidden elements */
.hidden { display: none; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Cursor */
.cursor-pointer { cursor: pointer; }
.cursor-default { cursor: default; }
.select-none { user-select: none; }

/* Particle sections */
.has-particles {
  position: relative;
  overflow: hidden;
}
.particles-section {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}
.has-particles > *:not(.particles-section) {
  position: relative;
  z-index: 1;
}