@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap');

/* Modern CSS Reset */
*, *::before, *::after {
  box-sizing: border-box;
}

* {
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-body);
  color: var(--color-text-primary);
  background-color: var(--color-background);
  line-height: var(--line-height-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography Base - Ultra Robotics Industrial Heavy-Weight Sans-Serif */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--font-weight-extrabold);
  line-height: var(--line-height-tight);
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
  letter-spacing: -0.02em;
}

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

p {
  margin-bottom: var(--space-4);
  color: var(--color-text-secondary);
}

a {
  color: var(--color-dark);
  text-decoration: underline;
  text-decoration-color: var(--color-primary);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
  transition: all var(--transition-normal);
}

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

ul, ol {
  margin-bottom: var(--space-4);
  padding-left: var(--space-8);
}

blockquote {
  border-left: 4px solid var(--color-primary);
  padding: var(--space-3) var(--space-4);
  margin-bottom: var(--space-4);
  font-style: italic;
  color: var(--color-text-secondary);
  background-color: var(--color-primary-surface);
}

/* Accessibility & Selection - Ultra Robotics Neon Orange */
::selection {
  background-color: var(--color-primary);
  color: var(--color-white);
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  box-shadow: 0 0 0 3px rgba(255, 69, 0, 0.25);
}

/* Utilities */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

.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;
}

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

.text-gradient {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-alt));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: var(--font-weight-black);
}

/* Iconic Ultra Robotics Brand Slash Accent */
.brand-slash {
  display: inline-block;
  width: 6px;
  height: 1em;
  background-color: var(--color-primary);
  transform: skewX(-15deg);
  vertical-align: -0.1em;
  margin: 0 0.2em;
  box-shadow: 0 0 8px rgba(255, 69, 0, 0.4);
}

/* Responsive Container */
@media (min-width: 768px) {
  .container {
    padding-left: var(--space-8);
    padding-right: var(--space-8);
  }
}