/* 
   HiFi Experten Niederrhein - Squarespace-Inspired Design
   Clean, Modern, Minimalist
*/

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ========================================
   CSS VARIABLES
   ======================================== */

:root {
  --color-black: #000000;
  --color-white: #FFFFFF;
  --color-gray-50: #FAFAFA;
  --color-gray-100: #F5F5F5;
  --color-gray-200: #E5E5E5;
  --color-gray-600: #757575;
  --color-gray-900: #171717;
  
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  
  --spacing-4: 16px;
  --spacing-6: 24px;
  --spacing-8: 32px;
  --spacing-12: 48px;
  --spacing-16: 64px;
  --spacing-24: 96px;
  --spacing-32: 128px;
  
  --container-max: 1400px;
  --radius-none: 0;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========================================
   RESET & BASE
   ======================================== */

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

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-black);
  background: var(--color-white);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

/* ========================================
   TYPOGRAPHY
   ======================================== */

h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: var(--spacing-6);
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: var(--spacing-4);
}

h3 {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin-bottom: var(--spacing-4);
}

p {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-gray-600);
  margin-bottom: var(--spacing-4);
}

/* ========================================
   LAYOUT
   ======================================== */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-6);
}

@media (min-width: 768px) {
  .container {
    padding: 0 var(--spacing-8);
  }
}

section {
  padding: var(--spacing-16) 0;
}

@media (min-width: 768px) {
  section {
    padding: var(--spacing-24) 0;
  }
}

section.dark {
  background: var(--color-black);
  color: var(--color-white);
}

section.dark h1,
section.dark h2,
section.dark h3 {
  color: var(--color-white);
}

section.dark p {
  color: rgba(255, 255, 255, 0.7);
}

/* ========================================
   NAVIGATION
   ======================================== */

nav {
  background: #1A0F0A; /* Very Dark Brown */
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding: var(--spacing-4) 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(10px);
}

nav .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

nav .logo {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: -0.01em;
  text-decoration: none;
  display: block;
}

/* Remove image styling for logo if present, revert to text style */
nav .logo img {
  display: none;
}

/* Desktop Menu */
nav ul.nav-menu {
  display: flex;
  gap: var(--spacing-8);
  align-items: center;
}

nav a {
  font-size: 0.9375rem;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.9);
  transition: opacity var(--transition);
}

nav a:hover {
  opacity: 0.7;
  color: var(--color-white);
}

nav .cta-link {
  font-weight: 500;
  border: 1px solid rgba(255,255,255,0.3);
  padding: 8px 16px;
  border-radius: 4px;
}

/* Mobile Toggle - Hidden on Desktop */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 1002; /* Above mobile menu overlay */
    padding: 0.5rem;
}

/* Mobile Menu Styles */
@media (max-width: 768px) {
  nav .container {
      padding: 0 var(--spacing-4);
  }

  .mobile-menu-toggle {
    display: block;
  }

  nav ul.nav-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(26, 15, 10, 0.98);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-8);
    transform: translateY(-100%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1001;
    padding-bottom: 2rem;
  }

  nav ul.nav-menu.active {
    transform: translateY(0);
  }

  nav ul.nav-menu li {
      opacity: 0;
      transform: translateY(20px);
      transition: all 0.3s ease;
  }

  nav ul.nav-menu.active li {
      opacity: 1;
      transform: translateY(0);
  }
  
  /* Stagger animation for menu items */
  nav ul.nav-menu.active li:nth-child(1) { transition-delay: 0.1s; }
  nav ul.nav-menu.active li:nth-child(2) { transition-delay: 0.2s; }
  nav ul.nav-menu.active li:nth-child(3) { transition-delay: 0.3s; }
  nav ul.nav-menu.active li:nth-child(4) { transition-delay: 0.4s; }

  nav a {
    font-size: 1.5rem; /* Larger font for mobile */
    font-weight: 600;
  }
  
  nav .cta-link {
      border: 1px solid white;
      padding: 12px 24px;
      margin-top: 1rem;
  }
}

/* ========================================
   HERO IMPROVEMENTS
   ======================================== */

.hero {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--spacing-24) var(--spacing-6);
  background: var(--color-gray-100);
  margin-top: 0;
}

.hero.has-image {
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: var(--color-white);
}

.hero.has-image::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.4); /* Pure dark overlay, no gradient */
  z-index: 1;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: var(--spacing-6);
  color: #FFFFFF !important;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5); /* Strong shadow */
  position: relative;
  z-index: 2; /* Ensure on top of overlay */
}

.hero p {
  font-size: 1.125rem;
  color: #FFFFFF !important;
  margin: 0 auto var(--spacing-8);
  max-width: 600px;
  text-shadow: 0 1px 5px rgba(0, 0, 0, 0.5);
  position: relative;
  z-index: 2;
}

.hero .btn {
    color: #FFFFFF !important;
    position: relative;
    z-index: 2;
}

.btn-primary {
    padding: 16px 32px;
    font-size: 1rem;
    letter-spacing: 0.5px;
}

/* ========================================
   SECTION HEADER
   ======================================== */

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--spacing-12);
  gap: var(--spacing-6);
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--color-black);
}

section.dark .section-title {
  color: var(--color-white);
}

.section-subtitle {
  font-size: 1rem;
  color: var(--color-gray-600);
  margin-top: var(--spacing-4);
  font-weight: 400;
}

section.dark .section-subtitle {
  color: rgba(255, 255, 255, 0.7);
}

.section-cta {
  font-size: 0.9375rem;
  font-weight: 500;
  white-space: nowrap;
  transition: opacity var(--transition);
  color: var(--color-black);
}

section.dark .section-cta {
  color: var(--color-white);
}

.section-cta:hover {
  opacity: 0.6;
}

@media (max-width: 768px) {
  .section-header {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* ========================================
   CARD GRID
   ======================================== */

.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-12);
}

@media (min-width: 640px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-8);
  }
}

@media (min-width: 1024px) {
  .card-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-8);
  }
}

/* ========================================
   CARDS
   ======================================== */

.card {
  display: block;
  overflow: hidden;
  transition: opacity var(--transition);
}

.card:hover {
  opacity: 0.9;
}

.card-image {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--color-gray-100);
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}

.card:hover .card-image img {
  transform: scale(1.03);
}

.card-content {
  padding: var(--spacing-6) 0;
}

.card-label {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-gray-600);
  margin-bottom: var(--spacing-4);
}

section.dark .card-label {
  color: rgba(255, 255, 255, 0.6);
}

.card-title {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--color-black);
  margin-bottom: var(--spacing-4);
}

section.dark .card-title {
  color: var(--color-white);
}

.card-meta {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--color-gray-600);
}

section.dark .card-meta {
  color: rgba(255, 255, 255, 0.6);
}

/* ========================================
   BUTTONS
   ======================================== */

.btn {
  display: inline-block;
  padding: 14px 32px;
  font-size: 0.9375rem;
  font-weight: 500;
  text-align: center;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
  border-radius: var(--radius-none);
}

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

.btn-primary:hover {
  background: var(--color-gray-900);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

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

.btn-secondary:hover {
  background: var(--color-black);
  color: var(--color-white);
}

/* ========================================
   FOOTER
   ======================================== */

footer {
  background: var(--color-black);
  color: var(--color-white);
  padding: var(--spacing-24) 0 var(--spacing-12);
  margin-top: var(--spacing-32);
}

footer h3 {
  color: var(--color-white);
  margin-bottom: var(--spacing-4);
}

footer .section-subtitle {
  color: rgba(255, 255, 255, 0.6);
}

footer .footer-links {
  display: flex;
  gap: var(--spacing-8);
  margin-top: var(--spacing-6);
  flex-wrap: wrap;
}

footer a {
  font-size: 0.9375rem;
  transition: opacity var(--transition);
}

footer a:hover {
  opacity: 0.6;
}

@media (max-width: 640px) {
  footer .footer-links {
    flex-direction: column;
    gap: var(--spacing-4);
  }
}

/* ========================================
   UTILITIES
   ======================================== */

.text-center {
  text-align: center;
}

.mb-sm { margin-bottom: var(--spacing-4); }
.mb-md { margin-bottom: var(--spacing-6); }
.mb-lg { margin-bottom: var(--spacing-8); }
.mb-xl { margin-bottom: var(--spacing-12); }

.mt-sm { margin-top: var(--spacing-4); }
.mt-md { margin-top: var(--spacing-6); }
.mt-lg { margin-top: var(--spacing-8); }
.mt-xl { margin-top: var(--spacing-12); }