/* Slipwai Website — Brand CSS Variables
   Based on Pilot team's CSS variable system for consistency.
   Dark theme is the website default. */

:root {
  /* Brand */
  --brand-primary: #0A95D7;    /* Electric Blue — buttons, links */
  --brand-accent: #56F9F3;     /* Luminous Cyan — high-energy accents */
  --brand-anchor: #0059B3;     /* Slipwai Navy — hover states, structure */

  /* Backgrounds */
  --bg-base: #020817;          /* Void Blue — page background */
  --bg-surface: #0F172A;       /* Slate Hull — cards, sections */
  --bg-elevated: #1E293B;      /* Steel Wave — elevated elements */

  /* Text */
  --text-primary: #FFFFFF;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;

  /* Borders */
  --border: rgba(255, 255, 255, 0.1);
  --border-hover: rgba(255, 255, 255, 0.2);

  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.5);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);

  /* Status */
  --success: #00E676;
  --warning: #FFD600;
  --danger: #FF5252;
}

/* Base reset and defaults */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  background-color: var(--bg-base);
  color: var(--text-primary);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading, 'Barlow Semi Condensed', system-ui, sans-serif);
  font-weight: 700;
  line-height: 1.2;
  color: var(--heading-colour, var(--text-primary));
}

code, pre {
  font-family: var(--font-code, 'JetBrains Mono', monospace);
}

/* Brand accent text */
.text-brand { color: var(--brand-accent); }
.text-primary-brand { color: var(--brand-primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }

/* Brand backgrounds */
.bg-surface { background-color: var(--bg-surface); }
.bg-elevated { background-color: var(--bg-elevated); }

/* Brand borders */
.border-brand { border-color: var(--border); }

/* CTA button */
.btn-cta {
  display: inline-block;
  background-color: var(--btn-bg, var(--brand-accent));
  color: var(--btn-text, var(--bg-base));
  font-family: var(--font-heading, 'Barlow Semi Condensed', system-ui, sans-serif);
  font-weight: 700;
  font-size: 1.125rem;
  padding: 0.875rem 2.5rem;
  border: none;
  border-radius: var(--border-radius, 0);
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease;
  text-decoration: none;
}

.btn-cta:hover {
  background-color: var(--btn-hover-bg, var(--brand-primary));
  color: var(--btn-hover-text, var(--text-primary));
}

/* Links */
a[target="_blank"], [data-content] a {
  color: var(--link-colour, var(--brand-accent));
  transition: color 0.2s ease;
}

a[target="_blank"]:hover, [data-content] a:hover {
  color: var(--link-hover-colour, var(--text-primary));
}

/* Section spacing */
.section {
  padding: var(--section-padding, 6rem) 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
}

/* Beacon pulse animation for footer */
@keyframes beacon-pulse {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

.beacon-pulse {
  animation: beacon-pulse 3s ease-in-out infinite;
}

/* Theme-driven utility overrides */
.text-brand-accent { color: var(--brand-accent); }
.text-brand-primary { color: var(--brand-primary); }
.bg-theme-base { background-color: var(--bg-base); }
.bg-theme-surface { background-color: var(--bg-surface); }
.border-theme { border-color: var(--border); }

/* Markdown content styling */
[data-content] p,
section p {
  margin-bottom: 1rem;
}

[data-content] p:last-child,
section p:last-child {
  margin-bottom: 0;
}

[data-content] h3 {
  font-family: 'Barlow Semi Condensed', system-ui, sans-serif;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--brand-accent);
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

[data-content] h3:first-child {
  margin-top: 0;
}

[data-content] p {
  margin-bottom: 1rem;
}

[data-content] p:last-child {
  margin-bottom: 0;
}

/* Carousel scrollbar hide */
[id^="carousel-"]::-webkit-scrollbar { display: none; }

/* Mobile adjustments */
@media (max-width: 768px) {
  .section {
    padding: 3rem 1rem;
  }

  h1 { font-size: 2rem !important; }
  h2 { font-size: 1.75rem !important; }

  .btn-cta {
    font-size: 1rem;
    padding: 0.75rem 2rem;
    width: 100%;
    text-align: center;
  }

  footer .flex.items-center.gap-8 {
    flex-direction: column;
    gap: 0.75rem;
  }
}

/* Scroll reveal base state */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (min-width: 768px) {
  .split-grid { grid-template-columns: var(--cols, 1fr 1fr) !important; }
}