/**
 * ClearSpring Global Styles & Fonts
 * High-definition typography, custom cursor, layout utilities & scroll track
 */

/* -------------------------------------------------------------
 * LOCAL FONT-FACE DEFINITIONS
 * ------------------------------------------------------------- */
@font-face {
  font-family: 'Century';
  src: url('../fonts/CENTURY.TTF') format('truetype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Berlin Sans FB';
  src: url('../fonts/BRLNSR.TTF') format('truetype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Berlin Sans FB';
  src: url('../fonts/BRLNSDB.TTF') format('truetype');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Berlin Sans FB';
  src: url('../fonts/BRLNSB.TTF') format('truetype');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

/* -------------------------------------------------------------
 * CONTAINER & LAYOUT UTILITIES
 * ------------------------------------------------------------- */
.cs-shell {
  width: 100%;
  max-width: 85rem; /* 1360px */
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--cs-space-24);
  padding-right: var(--cs-space-24);
}

@media (min-width: 48rem) { /* 768px */
  .cs-shell {
    padding-left: var(--cs-space-48);
    padding-right: var(--cs-space-48);
  }
}

.cs-section {
  position: relative;
  width: 100%;
  padding-top: var(--cs-space-80);
  padding-bottom: var(--cs-space-80);
  overflow: hidden;
}

@media (min-width: 64rem) { /* 1024px */
  .cs-section {
    padding-top: var(--cs-space-120);
    padding-bottom: var(--cs-space-120);
  }
}

/* -------------------------------------------------------------
 * GLOBAL TYPOGRAPHY CLASSES
 * ------------------------------------------------------------- */
.cs-heading-display {
  font-family: var(--cs-font-display);
  font-size: var(--cs-fluid-hero);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.cs-heading-1 {
  font-family: var(--cs-font-display);
  font-size: var(--cs-fluid-h1);
  font-weight: 400;
  line-height: 1.18;
}

.cs-heading-2 {
  font-family: var(--cs-font-serif);
  font-size: var(--cs-fluid-h2);
  font-weight: 400;
  line-height: 1.28;
}

.cs-heading-3 {
  font-family: var(--cs-font-serif);
  font-size: var(--cs-fluid-h3);
  font-weight: 500;
  line-height: 1.38;
}

.cs-eyebrow {
  font-family: var(--cs-font-sans);
  font-size: var(--cs-text-12);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.25em;
  color: var(--cs-color-gold-light);
  display: inline-block;
  margin-bottom: var(--cs-space-12);
}

.cs-lead {
  font-family: var(--cs-font-serif);
  font-size: var(--cs-text-18);
  line-height: 1.7;
  color: var(--cs-color-text-secondary);
  max-width: 42rem;
}

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

.cs-azure-text {
  color: var(--cs-color-azure);
}

/* -------------------------------------------------------------
 * BUTTONS & INTERACTIVE ELEMENTS
 * ------------------------------------------------------------- */
.cs-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--cs-font-sans);
  font-size: var(--cs-text-14);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0.85em 2em;
  border-radius: var(--cs-radius-4);
  transition: all var(--cs-transition-smooth);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.cs-btn--gold-outline {
  border: 1px solid var(--cs-color-gold-light);
  color: var(--cs-color-gold-light);
  background: rgba(240, 206, 142, 0.05);
}

.cs-btn--gold-outline:hover {
  background: var(--cs-gradient-gold);
  color: var(--cs-color-obsidian);
  box-shadow: var(--cs-shadow-gold);
  transform: translateY(-2px);
}

.cs-btn--gold-solid {
  background: var(--cs-gradient-gold);
  color: var(--cs-color-obsidian);
  border: 1px solid var(--cs-color-gold-light);
}

.cs-btn--gold-solid:hover {
  box-shadow: var(--cs-shadow-gold);
  transform: translateY(-2px);
  filter: brightness(1.08);
}

/* -------------------------------------------------------------
 * CUSTOM CIRCULAR CURSOR FOLLOWER
 * ------------------------------------------------------------- */
.cs-cursor-follower {
  position: fixed;
  top: 0;
  left: 0;
  width: 2.25rem; /* 36px */
  height: 2.25rem;
  border-radius: 50%;
  border: 1px solid var(--cs-color-gold-light);
  pointer-events: none;
  z-index: var(--cs-z-cursor);
  transform: translate(-50%, -50%);
  transition: width var(--cs-transition-fast), height var(--cs-transition-fast), background var(--cs-transition-fast), border-color var(--cs-transition-fast);
  opacity: 0;
}

.cs-cursor-dot {
  position: fixed;
  top: 0;
  left: 0;
  width: 0.375rem; /* 6px */
  height: 0.375rem;
  border-radius: 50%;
  background: var(--cs-color-azure);
  pointer-events: none;
  z-index: calc(var(--cs-z-cursor) + 1);
  transform: translate(-50%, -50%);
  opacity: 0;
}

.cs-cursor--active .cs-cursor-follower {
  width: 3.5rem; /* 56px */
  height: 3.5rem;
  background: rgba(240, 206, 142, 0.12);
  border-color: var(--cs-color-azure);
}

@media (pointer: coarse) {
  .cs-cursor-follower,
  .cs-cursor-dot {
    display: none !important;
  }
}

/* -------------------------------------------------------------
 * FIXED SIDE SCROLL TRACKER (Right margin indicator)
 * ------------------------------------------------------------- */
.cs-scroll-tracker {
  position: fixed;
  right: var(--cs-space-24);
  top: 50%;
  transform: translateY(-50%);
  z-index: var(--cs-z-nav);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--cs-space-12);
  pointer-events: none;
}

.cs-scroll-tracker__label {
  font-family: var(--cs-font-sans);
  font-size: var(--cs-text-10);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--cs-color-text-muted);
  writing-mode: vertical-rl;
  transform: rotate(180deg);
}

.cs-scroll-tracker__bar {
  width: 2px;
  height: 5rem; /* 80px */
  background: rgba(250, 250, 250, 0.15);
  position: relative;
  border-radius: 2px;
  overflow: hidden;
}

.cs-scroll-tracker__fill {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 0%;
  background: var(--cs-color-gold-light);
  box-shadow: 0 0 8px var(--cs-color-gold-light);
  transition: height 0.1s linear;
}

.cs-scroll-tracker__index {
  font-family: var(--cs-font-display);
  font-size: var(--cs-text-12);
  color: var(--cs-color-gold-light);
  letter-spacing: 0.1em;
}

@media (max-width: 48rem) {
  .cs-scroll-tracker {
    display: none !important;
  }
}