/* Merck-Bio - Biochemistry & Life Sciences - Sleek Redesign */

:root {
  --primary: #0369a1;
  --primary-dark: #0c4a6e;
  --accent: #0891b2;
  --accent-light: #22d3ee;
  --dark: #0f172a;
  --gray: #475569;
  --light: #f8fafc;
  --white: #ffffff;
  --border: #cbd5e1;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'DM Sans', -apple-system, sans-serif;
  line-height: 1.7;
  color: var(--dark);
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  background: var(--white);
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; display: block; }

/* Nav - Minimal top bar */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--white);
  border-bottom: 1px solid rgba(0,0,0,0.06);
  z-index: 1000;
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0.9rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--primary-dark);
}

.logo img {
  height: 32px;
  width: auto;
}

.nav-links {
  display: flex;
  gap: 2.2rem;
}

.nav-links a {
  font-weight: 500;
  font-size: 0.875rem;
  color: var(--gray);
  transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.active { color: var(--primary); }

.nav-cta {
  background: var(--primary);
  color: var(--white) !important;
  padding: 0.5rem 1.1rem;
  border-radius: 6px;
  font-size: 0.875rem;
  transition: background 0.2s;
}

.nav-cta:hover { background: var(--accent); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
}

.container { max-width: 1100px; margin: 0 auto; padding: 0 1.5rem; }

/* Hero - Full bleed, minimal overlay */
.hero {
  min-height: 92vh;
  background: linear-gradient(180deg, rgba(3,105,161,0.75) 0%, rgba(8,145,178,0.6) 100%),
    url("/images/hero.jpg?v=3") center/cover no-repeat;
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 7rem 1.5rem 4rem;
  position: relative;
}

.hero-content {
  max-width: 640px;
}

.hero h1 {
  font-size: clamp(2.2rem, 4.5vw, 3.2rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.15;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.1rem;
  opacity: 0.95;
  margin-bottom: 1.75rem;
  font-weight: 400;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: 6px;
  transition: all 0.2s;
  border: none;
  cursor: pointer;
}

.btn-primary {
  background: var(--white);
  color: var(--primary);
}

.btn-primary:hover {
  background: var(--light);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid var(--white);
}

.btn-outline:hover {
  background: var(--white);
  color: var(--primary);
}

.btn-group { display: flex; gap: 0.75rem; flex-wrap: wrap; justify-content: center; }

/* Sections */
.section { padding: 5rem 0; }

.section-title {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title h2 {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--dark);
  margin-bottom: 0.4rem;
}

.section-title p {
  font-size: 1rem;
  color: var(--gray);
}

/* Cards - Bento-style, no borders */
.listings-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.card {
  background: var(--white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
  transition: all 0.3s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(3,105,161,0.12);
}

.card-img {
  aspect-ratio: 4/3;
  background: var(--light);
  position: relative;
  overflow: hidden;
}

.card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.card:hover .card-img img { transform: scale(1.05); }

.card-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: var(--primary);
  color: var(--white);
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.7rem;
  letter-spacing: 0.05em;
}

.card-body { padding: 1.5rem; }

.card-price {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 0.3rem;
}

.card-address {
  font-size: 0.9rem;
  color: var(--gray);
  margin-bottom: 0.4rem;
}

.card-meta {
  font-size: 0.8rem;
  color: var(--gray);
  opacity: 0.9;
}

/* About - Split with image emphasis */
.about-section {
  background: linear-gradient(180deg, #f1f5f9 0%, var(--white) 100%);
}

.about-inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-img {
  aspect-ratio: 4/3;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 25px 50px rgba(0,0,0,0.1);
}

.about-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-text h2 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 1rem;
}

.about-text p {
  color: var(--gray);
  margin-bottom: 1rem;
  font-size: 1.05rem;
}

/* Testimonials - Dark block */
.testimonials {
  background: var(--primary-dark);
  color: var(--white);
  padding: 5rem 0;
}

.testimonials .section-title h2 { color: var(--white); }
.testimonials .section-title p { color: rgba(255,255,255,0.75); }

.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.testimonial-card {
  background: rgba(255,255,255,0.08);
  padding: 1.75rem;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.1);
  transition: all 0.25s;
}

.testimonial-card:hover {
  background: rgba(255,255,255,0.12);
  transform: translateY(-2px);
}

.testimonial-card p {
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 1rem;
  opacity: 0.95;
}

.testimonial-author {
  font-weight: 600;
  font-size: 0.85rem;
  opacity: 0.9;
}

/* CTA */
.cta-section {
  text-align: center;
  padding: 5rem 1.5rem;
  background: var(--primary);
  color: var(--white);
}

.cta-section h2 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.cta-section p {
  margin-bottom: 1.5rem;
  opacity: 0.95;
}

.cta-section .btn-outline {
  border-color: var(--white);
  color: var(--white);
}

.cta-section .btn-outline:hover {
  background: var(--white);
  color: var(--primary);
}

/* Footer */
.footer {
  background: var(--dark);
  color: var(--white);
  padding: 3.5rem 0 1.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 2rem;
}

.footer h3 {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--accent-light);
  margin-bottom: 1rem;
}

.footer p, .footer a {
  color: rgba(255,255,255,0.8);
  font-size: 0.9rem;
}

.footer a:hover { color: var(--accent-light); }

.footer-bottom {
  text-align: center;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
}

/* Page header */
.page-header {
  background: var(--primary-dark);
  color: var(--white);
  padding: 8rem 1.5rem 3rem;
  text-align: center;
}

.page-header h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 0.4rem;
}

.page-header p { opacity: 0.9; font-size: 1rem; }

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3rem;
  align-items: start;
}

.contact-info h3 {
  color: var(--primary-dark);
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

.contact-info p { margin-bottom: 0.5rem; font-size: 0.95rem; }

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
  margin-bottom: 1rem;
  font-family: inherit;
  transition: border-color 0.2s;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.contact-form textarea { min-height: 120px; resize: vertical; }

.map-placeholder {
  height: 320px;
  border-radius: 12px;
  overflow: hidden;
  background: var(--light);
}

.map-placeholder img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Services */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.service-card {
  padding: 2rem;
  background: var(--white);
  border-radius: 12px;
  border: 1px solid rgba(0,0,0,0.06);
  transition: all 0.25s;
}

.service-card:hover {
  border-color: var(--primary);
  box-shadow: 0 10px 30px rgba(3,105,161,0.08);
}

.service-card h3 {
  color: var(--primary-dark);
  margin-bottom: 0.75rem;
  font-size: 1.1rem;
}

.service-card p { color: var(--gray); font-size: 0.95rem; }

/* Filters */
.filters {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.filters select,
.filters input {
  padding: 0.6rem 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.9rem;
}

/* Mobile */
@media (max-width: 900px) {
  .listings-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonial-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 1rem;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  }
  .nav-links.open { display: flex; }
  .listings-grid { grid-template-columns: 1fr; }
  .about-inner { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
}