:root {
  --bg: #f8f8f6;
  --text: #1a1a1a;
  --muted: #6a6a6a;
  --accent: #f5b400;
}

[data-theme="dark"] {
  --bg: #0f1114;
  --text: #f5f5f5;
  --muted: #9a9a9a;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  transition: background .3s ease, color .3s ease;
}

section {
  max-width: 900px;
  margin: auto;
  padding: 100px 24px;
}

/* HERO */

.hero {
  text-align: center;
  padding-top: 120px;
  padding-bottom: 40px;
}

.hero-logo {
  width: 280px;
  max-width: 90%;
}

.theme-toggle {
  position: fixed;
  top: 30px;
  right: 40px;
  background: none;
  border: none;
  font-size: 18px;
  cursor: pointer;
  color: var(--text);
}

/* QUOTE */

.quote {
  text-align: center;
}

.quote blockquote {
  font-family: 'Playfair Display', serif;
  font-size: 2rem;
  line-height: 1.5;
  max-width: 820px;
  margin: 0 auto;
}

.quote cite {
  display: block;
  margin-top: 24px;
  color: var(--muted);
}

/* CLIENT LABEL */

.clients-label {
  text-align: center;
  padding-bottom: 20px;
}

.label {
  font-size: 0.75rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted);
}

/* LOGOS */

.logo-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 80px;
  align-items: center;
  justify-items: center;
}

.logo-grid a {
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-grid img {
  max-height: 60px;
  max-width: 180px;
  object-fit: contain;
  opacity: 0.8;
  filter: grayscale(100%);
  transition: filter 0.3s ease, opacity 0.3s ease;
}

.logo-grid img:hover {
  opacity: 1;
  filter: none;
}

/* Dark mode */
[data-theme="dark"] .logo-grid img {
  filter: grayscale(100%) brightness(1.4);
}

[data-theme="dark"] .logo-grid img:hover {
  filter: none;
}

/* Mobile */
@media (max-width: 768px) {
  .logo-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 50px 30px;
  }

  .logo-grid img {
    max-height: 50px;
    max-width: 140px;
  }
}


/* TESTIMONIALS */

.testimonial {
  margin-bottom: 120px;
  scroll-margin-top: 120px;
}

.testimonial p {
  font-size: 1.25rem;
  line-height: 1.6;
}

.testimonial span {
  display: block;
  margin-top: 12px;
  font-size: 0.9rem;
  color: var(--muted);
}

/* FOOTER */

footer {
  padding: 100px 24px;
  border-top: 1px solid rgba(0,0,0,0.05);
}

.footer-inner {
  max-width: 900px;
  margin: auto;
  text-align: center;
  font-size: 0.85rem;
  color: var(--muted);
}

.footer-gap {
  height: 28px;
}

footer a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
}

@media (max-width: 768px) {
  .quote blockquote { font-size: 1.6rem; }
  .testimonial p { font-size: 1.2rem; }
}