/* ============================================================
   RABORN MEDIA - RAPID WEB DEV LANDING PAGE
   main.css — Custom properties, resets, base typography
   Font: Alexandria (Google Fonts)
   Framework: Bootstrap 5
   ============================================================ */

/* ------------------------------------------------------------
   Custom Properties
   ------------------------------------------------------------ */
:root {
  /* Brand Colors */
  --color-blue:        #007cb5;
  --color-navy-dark:   #003964;
  --color-navy-deep:   #002d51;
  --color-gray-light:  #e6e6e6;
  --color-gray-mid:    #75777b;

  /* Accent Colors */
  --color-purple:      #625aed;
  --color-cyan:        #00cff8;
  --color-red:         #e73a4b;
  --color-green:       #269B7A;

  /* Neutral */
  --color-white:       #ffffff;
  --color-off-white:   #f8f9fb;
  --color-body-text:   #1a1a2e;
  --color-muted-text:  #5a6070;

  /* Hero Gradient */
  --hero-gradient: linear-gradient(
    160deg,
    var(--color-navy-deep)  0%,
    var(--color-navy-deep)  15%,
    #0b3d6e                 35%,
    #0d2a6b                 50%,
    #261268                 65%,
    var(--color-purple)     85%,
    #3d0f2a                 100%
  );

  /* Typography */
  --font-main:         'Alexandria', sans-serif;

  /* Spacing */
  --section-padding-y: 5rem;

  /* Transitions */
  --transition-base:   0.25s ease;
  --transition-slow:   0.45s ease;

  /* Border Radius — halved */
  --radius-card:   0.5rem;
  --radius-btn:    1.5rem;
  --radius-input:  0.25rem;
}

/* ------------------------------------------------------------
   Base Reset & Body
   ------------------------------------------------------------ */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  font-weight: 300;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-body-text);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--color-blue);
  text-decoration: none;
  transition: color var(--transition-base);
}

a:hover,
a:focus-visible {
  color: var(--color-navy-dark);
  text-decoration: underline;
}

/* ------------------------------------------------------------
   Skip Link (Accessibility)
   ------------------------------------------------------------ */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 9999;
  background: var(--color-navy-dark);
  color: var(--color-white);
  padding: 0.5rem 1rem;
  border-radius: 0 0 var(--radius-btn) var(--radius-btn);
  font-weight: 600;
  transition: top var(--transition-base);
}

.skip-link:focus {
  top: 0;
}

/* ------------------------------------------------------------
   Section Shared Styles
   ------------------------------------------------------------ */
.section-header {
  margin-bottom: 3.5rem;
}

.section-eyebrow {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-blue);
  margin-bottom: 0.75rem;
}

.section-heading {
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  font-weight: 300;
  color: var(--color-navy-dark);
  line-height: 1.2;
  margin-bottom: 1rem;
}

.section-subheading {
  font-size: 1.05rem;
  font-weight: 300;
  color: var(--color-muted-text);
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.75;
}

/* ------------------------------------------------------------
   Scroll-triggered Fade-In Animation
   ------------------------------------------------------------ */
.fade-in-ready {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.fade-in-ready.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ------------------------------------------------------------
   Sticky Header Scrolled State
   ------------------------------------------------------------ */
.site-header.header-scrolled {
  box-shadow: 0 4px 24px rgba(0, 57, 100, 0.12);
}