:root {
  --font-sans: 'Karla', sans-serif;
  --font-serif: 'Libre Baskerville', serif;

  /* Premium Dark Theme Palette */
  --bg-base: #0f172a; /* Slate 900 */
  --bg-surface: #1e293b; /* Slate 800 */
  --bg-surface-elevated: #334155; /* Slate 700 */

  --text-primary: #f8fafc; /* Slate 50 */
  --text-secondary: #94a3b8; /* Slate 400 */
  --text-muted: #64748b; /* Slate 500 */

  /* Vibrant Accents */
  --accent-primary: #3b82f6; /* Blue 500 */
  --accent-secondary: #8b5cf6; /* Violet 500 */
  --accent-gradient: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));

  /* Layout */
  --max-width: 1200px;
  --header-height: 80px;

  /* Effects */
  --glass-bg: rgba(15, 23, 42, 0.7);
  --glass-border: rgba(255, 255, 255, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -4px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.3);
  
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
body {
  font-family: var(--font-sans);
  color: var(--text-primary);
  background-color: var(--bg-base);
  background-image: 
    radial-gradient(circle at 15% 50%, rgba(59, 130, 246, 0.08), transparent 25%),
    radial-gradient(circle at 85% 30%, rgba(139, 92, 246, 0.08), transparent 25%);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, picture, video, canvas, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
button { background: none; border: none; font: inherit; cursor: pointer; color: inherit; }

h1, h2, h3, h4, h5, h6 { font-family: var(--font-serif); font-weight: 700; line-height: 1.2; }
h1 { font-size: clamp(2.5rem, 5vw, 4rem); margin-bottom: 1rem; }
h2 { font-size: clamp(2rem, 4vw, 3rem); margin-bottom: 1.5rem; }
h3 { font-size: 1.5rem; margin-bottom: 0.75rem; }

.treu-container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* =========================================
   HEADER & NAVIGATION
   ========================================= */
.treu-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-height);
  z-index: 100;
  background: transparent;
  transition: var(--transition);
  display: flex;
  align-items: center;
}
.treu-header--scrolled {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--shadow-lg);
}

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

.treu-logo {
  display: flex;
  flex-direction: column;
}
.treu-logo__name {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.treu-logo__tagline {
  font-size: 0.75rem;
  color: var(--text-secondary);
  letter-spacing: 1px;
  text-transform: uppercase;
}

.treu-nav { display: flex; gap: 2rem; align-items: center; }
.treu-nav__link {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
  position: relative;
  padding: 0.5rem 0;
}
.treu-nav__link:hover, .treu-nav__link--active {
  color: var(--text-primary);
}
.treu-nav__link::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: var(--accent-gradient);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s ease;
}
.treu-nav__link:hover::after, .treu-nav__link--active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.treu-menu-toggle { display: none; width: 30px; height: 20px; position: relative; z-index: 110; }
.treu-menu-toggle__bar {
  position: absolute; left: 0; width: 100%; height: 2px;
  background-color: var(--text-primary);
  transition: var(--transition);
}
.treu-menu-toggle__bar:nth-child(1) { top: 0; }
.treu-menu-toggle__bar:nth-child(2) { top: 9px; }
.treu-menu-toggle__bar:nth-child(3) { top: 18px; }

@media (max-width: 768px) {
  .treu-menu-toggle { display: block; }
  .treu-nav {
    position: fixed;
    top: 0; right: -100%; bottom: 0;
    width: 100%; max-width: 300px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    border-left: 1px solid var(--glass-border);
    transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  }
  .treu-nav--open { right: 0; box-shadow: var(--shadow-lg); }
  .treu-menu-toggle--open .treu-menu-toggle__bar:nth-child(1) { transform: rotate(45deg); top: 9px; }
  .treu-menu-toggle--open .treu-menu-toggle__bar:nth-child(2) { opacity: 0; }
  .treu-menu-toggle--open .treu-menu-toggle__bar:nth-child(3) { transform: rotate(-45deg); top: 9px; }
}

/* =========================================
   HERO
   ========================================= */
.treu-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
}
.treu-hero__bg {
  position: absolute; top: 0; left: 0; right: 0; bottom: 0; z-index: -2;
}
.treu-hero__bg img {
  width: 100%; height: 100%; object-fit: cover;
}
.treu-hero__overlay {
  position: absolute; top: 0; left: 0; right: 0; bottom: 0; z-index: -1;
  background: linear-gradient(to bottom, rgba(15, 23, 42, 0.8), rgba(15, 23, 42, 1));
}
.treu-hero__content {
  max-width: 800px;
  text-align: center;
  margin: 0 auto;
}
.treu-eyebrow {
  display: inline-block;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent-primary);
  margin-bottom: 1rem;
  font-weight: 700;
}
.treu-lead {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}
.treu-btn-group {
  display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap;
}

/* Buttons */
.treu-btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0.875rem 2rem;
  font-weight: 600;
  border-radius: 9999px;
  transition: var(--transition);
}
.treu-btn--primary {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
}
.treu-btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(59, 130, 246, 0.6);
}
.treu-btn--outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
}
.treu-btn--outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}
.treu-btn--dark {
  background: var(--bg-surface-elevated);
  color: var(--text-primary);
}
.treu-btn--dark:hover {
  background: var(--bg-surface);
}

/* =========================================
   SECTIONS
   ========================================= */
.treu-section { padding: 6rem 0; position: relative; }
.treu-section--alt { background-color: rgba(30, 41, 59, 0.3); }

.treu-section-head { text-align: center; max-width: 600px; margin: 0 auto 4rem; }
.treu-accent {
  display: block; width: 60px; height: 3px;
  background: var(--accent-gradient);
  margin: 1.5rem auto;
  border-radius: 2px;
}

/* Stats */
.treu-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 2rem; text-align: center; }
.treu-stat {
  padding: 2rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 1rem;
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
}
.treu-stat:hover { transform: translateY(-5px); border-color: rgba(255, 255, 255, 0.2); }
.treu-stat__num { font-family: var(--font-serif); font-size: 3rem; font-weight: 700; color: var(--accent-primary); margin-bottom: 0.5rem; }
.treu-stat__label { color: var(--text-secondary); font-size: 1.1rem; }

/* Grid / Cards */
.treu-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 2rem; }
.treu-card {
  background: var(--bg-surface);
  border: 1px solid var(--glass-border);
  border-radius: 1rem;
  overflow: hidden;
  transition: var(--transition);
  display: flex; flex-direction: column;
}
.treu-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-glow);
  border-color: rgba(59, 130, 246, 0.5);
}
.treu-card__img { height: 240px; overflow: hidden; position: relative; }
.treu-card__img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.treu-card:hover .treu-card__img img { transform: scale(1.05); }

.treu-card__body { padding: 2rem; display: flex; flex-direction: column; flex-grow: 1; }
.treu-card__tag {
  display: inline-block; padding: 0.25rem 0.75rem;
  background: rgba(59, 130, 246, 0.15);
  color: var(--accent-primary);
  border-radius: 999px;
  font-size: 0.75rem; font-weight: 700; text-transform: uppercase;
  margin-bottom: 1rem; align-self: flex-start;
}
.treu-card p { color: var(--text-secondary); margin-bottom: 1.5rem; flex-grow: 1; }
.treu-card__link { color: var(--accent-primary); font-weight: 600; display: flex; align-items: center; gap: 0.5rem; }
.treu-card__link:hover { color: var(--accent-secondary); gap: 0.75rem; }

/* Split Section */
.treu-split { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.treu-split__content p { color: var(--text-secondary); margin-bottom: 1.5rem; font-size: 1.1rem; }
.treu-split__img { border-radius: 1rem; overflow: hidden; box-shadow: var(--shadow-glow); }
.treu-split__img img { width: 100%; height: auto; display: block; }
@media (max-width: 992px) { .treu-split { grid-template-columns: 1fr; gap: 2rem; } }

/* CTA */
.treu-cta {
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.8), rgba(15, 23, 42, 0.9)), url('https://images.unsplash.com/photo-1506196560064-28b3c9d722d3?w=1600&q=80') center/cover;
  padding: 5rem 2rem;
  border-radius: 2rem;
  text-align: center;
  border: 1px solid var(--glass-border);
}
.treu-cta h2 { margin-bottom: 1rem; }
.treu-cta p { color: var(--text-secondary); font-size: 1.2rem; max-width: 600px; margin: 0 auto 2rem; }

/* Footer */
.treu-footer { background: var(--bg-surface); padding: 4rem 0 2rem; border-top: 1px solid var(--glass-border); }
.treu-footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 3rem; margin-bottom: 3rem; }
.treu-footer__brand p { color: var(--text-secondary); margin-top: 1rem; max-width: 300px; }
.treu-footer h4 { color: var(--text-primary); margin-bottom: 1.5rem; font-size: 1.2rem; }
.treu-footer a { display: block; color: var(--text-secondary); margin-bottom: 0.75rem; }
.treu-footer a:hover { color: var(--accent-primary); transform: translateX(5px); }
.treu-footer__bottom {
  padding-top: 2rem; border-top: 1px solid var(--glass-border);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem;
  color: var(--text-muted); font-size: 0.9rem;
}
@media (max-width: 768px) { .treu-footer__grid { grid-template-columns: 1fr; gap: 2rem; } }

/* Content Pages */
.treu-page-header {
  padding: 8rem 0 4rem;
  background: linear-gradient(to bottom, rgba(30, 41, 59, 0.5), transparent);
  text-align: center;
}
.treu-content { max-width: 800px; margin: 0 auto; color: var(--text-secondary); font-size: 1.1rem; }
.treu-content h2, .treu-content h3 { color: var(--text-primary); margin-top: 2.5rem; }
.treu-content p { margin-bottom: 1.5rem; }
.treu-content ul { margin-bottom: 1.5rem; padding-left: 1.5rem; }
.treu-content li { margin-bottom: 0.5rem; }

/* Animations */
.treu-reveal { opacity: 0; transform: translateY(30px); transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1); }
.treu-reveal--visible { opacity: 1; transform: translateY(0); }
.treu-reveal--delay-1 { transition-delay: 0.2s; }
.treu-reveal--delay-2 { transition-delay: 0.4s; }