/* ===================================
   GROSSI TREUHAND – Website Redesign
   Brand Style Guide Applied
   =================================== */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Playfair+Display:wght@500;600;700&display=swap');

/* --- CSS Custom Properties --- */
:root {
  --color-primary: #1a3a4a;
  --color-primary-dark: #0f2530;
  --color-primary-light: #2a5a6a;
  --color-accent: #3d8b7a;
  --color-accent-light: #4ea08d;
  --color-accent-dark: #2d7566;
  --color-text: #1a1a1a;
  --color-text-secondary: #4a5568;
  --color-text-light: #718096;
  --color-bg: #ffffff;
  --color-surface: #f7f9fb;
  --color-surface-warm: #f0f4f3;
  --color-border: #e2e8f0;
  --color-white: #ffffff;
  --color-black: #000000;

  --font-heading: 'Playfair Display', Georgia, serif;
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-h1: clamp(2.2rem, 4.5vw, 3.2rem);
  --font-size-h2: clamp(1.6rem, 3vw, 2.2rem);
  --font-size-h3: clamp(1.2rem, 2vw, 1.5rem);
  --font-size-body: 1rem;
  --font-size-small: 0.875rem;
  --font-size-xs: 0.8rem;

  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 48px;
  --space-2xl: 80px;
  --space-3xl: 120px;

  --container: 1140px;
  --container-narrow: 780px;
  --radius: 6px;
  --radius-lg: 12px;
  --radius-xl: 20px;
  --transition: 0.3s ease;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.1);
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-main);
  font-size: var(--font-size-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: color var(--transition); }
ul { list-style: none; }

/* --- Container --- */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}
.container-narrow {
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* --- Typography --- */
h1, h2, h3 { font-family: var(--font-heading); font-weight: 600; line-height: 1.2; color: var(--color-primary); }
h4, h5, h6 { font-family: var(--font-main); font-weight: 600; line-height: 1.3; color: var(--color-primary); }
h1 { font-size: var(--font-size-h1); }
h2 { font-size: var(--font-size-h2); }
h3 { font-size: var(--font-size-h3); }
p { margin-bottom: var(--space-md); color: var(--color-text-secondary); }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 14px 32px;
  border-radius: var(--radius);
  font-family: var(--font-main);
  font-size: var(--font-size-body);
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
  letter-spacing: 0.01em;
}
.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
  border-color: var(--color-accent);
}
.btn-primary:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(61, 139, 122, 0.3);
}
.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-secondary:hover {
  background: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
}
.btn-sm {
  padding: 10px 22px;
  font-size: var(--font-size-small);
}

/* --- Header --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}
.site-header.scrolled {
  box-shadow: var(--shadow-md);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-icon {
  width: 36px;
  height: 36px;
}
.logo-text {
  font-family: var(--font-main);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}
.logo-text span {
  color: var(--color-accent);
}
.main-nav ul {
  display: flex;
  gap: var(--space-lg);
  align-items: center;
}
.main-nav a {
  font-size: var(--font-size-small);
  font-weight: 500;
  color: var(--color-text-secondary);
  padding: 8px 0;
  position: relative;
}
.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition);
}
.main-nav a:hover,
.main-nav a.active {
  color: var(--color-primary);
}
.main-nav a:hover::after,
.main-nav a.active::after {
  width: 100%;
}
.header-cta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}
.header-phone {
  font-size: var(--font-size-small);
  font-weight: 500;
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
}
.header-phone:hover {
  color: var(--color-accent);
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.mobile-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  transition: all var(--transition);
  border-radius: 2px;
}

/* --- Hero --- */
.hero {
  padding: calc(72px + var(--space-3xl)) 0 var(--space-3xl);
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-surface-warm) 100%);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 60%;
  height: 200%;
  background: radial-gradient(circle, rgba(61,139,122,0.06) 0%, transparent 70%);
  pointer-events: none;
}
.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}
.hero-content {
  position: relative;
  z-index: 1;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(61,139,122,0.1);
  color: var(--color-accent-dark);
  padding: 8px 16px;
  border-radius: 100px;
  font-size: var(--font-size-small);
  font-weight: 500;
  margin-bottom: var(--space-lg);
}
.hero h1 {
  margin-bottom: var(--space-lg);
  letter-spacing: -0.02em;
}
.hero h1 em {
  font-style: normal;
  color: var(--color-accent);
}
.hero-subtitle {
  font-size: 1.125rem;
  line-height: 1.8;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
  max-width: 520px;
}
.hero-buttons {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}
.hero-image {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-image-placeholder {
  color: rgba(255,255,255,0.3);
  font-size: 4rem;
}

/* --- Sections --- */
.section {
  padding: var(--space-3xl) 0;
}
.section-alt {
  background: var(--color-surface);
}
.section-dark {
  background: var(--color-primary);
  color: var(--color-white);
}
.section-dark h2,
.section-dark h3 {
  color: var(--color-white);
}
.section-dark p {
  color: rgba(255,255,255,0.75);
}
.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto var(--space-xl);
}
.section-label {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

/* --- Stats --- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  text-align: center;
  padding: var(--space-xl) 0;
}
.stat-item h3 {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  color: var(--color-accent-light);
  margin-bottom: var(--space-xs);
}
.section-dark .stat-item h3 {
  color: var(--color-accent-light);
}
.stat-item p {
  font-size: var(--font-size-small);
  margin: 0;
}

/* --- Service Cards --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}
.service-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl) var(--space-lg);
  transition: all var(--transition);
  text-decoration: none;
  display: block;
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent);
}
.service-icon {
  width: 52px;
  height: 52px;
  background: rgba(61,139,122,0.1);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
}
.service-icon svg {
  color: var(--color-accent);
}
.service-card h3 {
  font-family: var(--font-main);
  font-size: 1.15rem;
  margin-bottom: var(--space-sm);
}
.service-card p {
  font-size: var(--font-size-small);
  margin-bottom: var(--space-md);
}
.service-link {
  font-size: var(--font-size-small);
  font-weight: 600;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.service-link:hover {
  gap: 10px;
}

/* --- Team --- */
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}
.team-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
}
.team-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.team-photo {
  aspect-ratio: 1;
  background: var(--color-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-light);
  font-size: 3rem;
}
.team-info {
  padding: var(--space-lg);
}
.team-info h3 {
  font-family: var(--font-main);
  font-size: 1.1rem;
  margin-bottom: 4px;
}
.team-role {
  font-size: var(--font-size-small);
  color: var(--color-accent);
  font-weight: 500;
  margin-bottom: var(--space-sm);
}
.team-quote {
  font-size: var(--font-size-small);
  color: var(--color-text-light);
  font-style: italic;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.team-linkedin {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--font-size-small);
  color: var(--color-accent);
  font-weight: 500;
  margin-top: var(--space-sm);
}
.team-linkedin:hover {
  color: var(--color-accent-dark);
}

/* --- USP / Features --- */
.usp-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}
.usp-item {
  text-align: center;
  padding: var(--space-xl) var(--space-lg);
}
.usp-icon {
  width: 64px;
  height: 64px;
  background: rgba(61,139,122,0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-md);
}
.usp-icon svg {
  color: var(--color-accent);
}
.usp-item h3 {
  font-family: var(--font-main);
  font-size: 1.1rem;
  margin-bottom: var(--space-sm);
}
.usp-item p {
  font-size: var(--font-size-small);
  margin: 0;
}

/* --- CTA Section --- */
.cta-section {
  padding: var(--space-3xl) 0;
  background: var(--color-primary);
  text-align: center;
}
.cta-section h2 {
  color: var(--color-white);
  margin-bottom: var(--space-md);
}
.cta-section p {
  color: rgba(255,255,255,0.75);
  max-width: 520px;
  margin: 0 auto var(--space-xl);
  font-size: 1.1rem;
}
.cta-section .btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
}
.cta-buttons {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* --- Detail Page --- */
.page-header {
  padding: calc(72px + var(--space-2xl)) 0 var(--space-xl);
  background: var(--color-surface);
}
.page-header .section-label {
  margin-bottom: var(--space-sm);
}
.page-header h1 {
  margin-bottom: var(--space-md);
}
.page-header p {
  font-size: 1.1rem;
  max-width: 600px;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--font-size-small);
  color: var(--color-text-light);
  margin-bottom: var(--space-md);
}
.breadcrumb a {
  color: var(--color-accent);
}
.breadcrumb a:hover {
  text-decoration: underline;
}

/* --- Service Detail --- */
.service-detail {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-xl);
  align-items: start;
}
.service-list {
  list-style: none;
}
.service-list li {
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  color: var(--color-text-secondary);
  line-height: 1.6;
}
.service-list li:last-child {
  border-bottom: none;
}
.service-list li svg {
  flex-shrink: 0;
  margin-top: 3px;
  color: var(--color-accent);
}
.service-sidebar {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  position: sticky;
  top: 96px;
}
.service-sidebar h3 {
  font-family: var(--font-main);
  font-size: 1.1rem;
  margin-bottom: var(--space-md);
}
.sidebar-nav {
  list-style: none;
}
.sidebar-nav li {
  margin-bottom: var(--space-sm);
}
.sidebar-nav a {
  display: block;
  padding: 10px var(--space-md);
  border-radius: var(--radius);
  font-size: var(--font-size-small);
  color: var(--color-text-secondary);
  transition: all var(--transition);
}
.sidebar-nav a:hover,
.sidebar-nav a.active {
  background: rgba(61,139,122,0.1);
  color: var(--color-accent);
}

/* --- Contact --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
}
.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}
.contact-info-item svg {
  flex-shrink: 0;
  color: var(--color-accent);
  margin-top: 2px;
}
.contact-info-item h4 {
  font-size: var(--font-size-body);
  margin-bottom: 4px;
}
.contact-info-item p {
  font-size: var(--font-size-small);
  margin: 0;
}
.contact-info-item a {
  color: var(--color-accent);
}
.contact-info-item a:hover {
  text-decoration: underline;
}
.contact-map {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 16/10;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
}
.contact-map iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* --- Network --- */
.network-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
}
.network-tag {
  background: rgba(61,139,122,0.1);
  color: var(--color-accent-dark);
  padding: 8px 20px;
  border-radius: 100px;
  font-size: var(--font-size-small);
  font-weight: 500;
}

/* --- Footer --- */
.site-footer {
  background: var(--color-primary);
  color: rgba(255,255,255,0.7);
  padding: var(--space-xl) 0;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
}
.footer-info p {
  color: rgba(255,255,255,0.7);
  font-size: var(--font-size-small);
  margin: 0;
  line-height: 1.8;
}
.footer-info a {
  color: var(--color-accent-light);
}
.footer-info a:hover {
  color: var(--color-white);
}
.footer-nav {
  display: flex;
  gap: var(--space-lg);
}
.footer-nav a {
  color: rgba(255,255,255,0.7);
  font-size: var(--font-size-small);
  transition: color var(--transition);
}
.footer-nav a:hover {
  color: var(--color-white);
}

/* =============================
   RESPONSIVE
   ============================= */

@media (max-width: 968px) {
  .hero .container {
    grid-template-columns: 1fr;
  }
  .hero-image {
    display: none;
  }
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xl) var(--space-lg);
  }
  .usp-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .service-detail {
    grid-template-columns: 1fr;
  }
  .service-sidebar {
    position: static;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --space-2xl: 56px;
    --space-3xl: 80px;
  }
  .main-nav { display: none; }
  .header-cta .btn { display: none; }
  .header-phone { display: none; }
  .mobile-toggle { display: flex; }
  .main-nav.active {
    display: flex;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-white);
    z-index: 999;
    padding: var(--space-xl);
  }
  .main-nav.active ul {
    flex-direction: column;
    gap: var(--space-lg);
    width: 100%;
  }
  .main-nav.active a {
    font-size: 1.2rem;
  }
  .services-grid {
    grid-template-columns: 1fr;
  }
  .team-grid {
    grid-template-columns: 1fr;
  }
  .usp-grid {
    grid-template-columns: 1fr;
  }
  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
  .footer-nav {
    flex-wrap: wrap;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  :root {
    --space-2xl: 40px;
    --space-3xl: 60px;
  }
  .hero-buttons {
    flex-direction: column;
  }
  .hero-buttons .btn {
    width: 100%;
    justify-content: center;
  }
  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }
  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }
}

/* --- Utility --- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}