/* ============================================
   Ferienhaus Seenah - Pixelnaher 1:1-Klon
   ============================================ */

/* CSS-Variablen für einfache Theme-Anpassungen */
:root {
  /* Farben */
  --color-primary: #1a5f3f;
  --color-primary-dark: #0f4a2f;
  --color-primary-light: #2d7a5a;
  --color-secondary: #d4a574;
  --color-secondary-dark: #b8905a;
  --color-accent: #e8c99b;
  --color-text: #333333;
  --color-text-light: #666666;
  --color-text-muted: #999999;
  --color-bg: #ffffff;
  --color-bg-light: #f8f8f8;
  --color-bg-dark: #2c2c2c;
  --color-border: #e0e0e0;
  --color-white: #ffffff;
  --color-black: #000000;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 4rem;
  
  /* Typografie */
  --font-primary: 'Roboto', 'Helvetica Neue', Arial, sans-serif;
  --font-secondary: 'Playfair Display', Georgia, serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3rem;
  
  /* Breakpoints */
  --breakpoint-sm: 576px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 992px;
  --breakpoint-xl: 1200px;
  --breakpoint-xxl: 1400px;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.2);
}

/* Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

/* Typografie */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-secondary);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
  color: var(--color-primary);
}

h1 {
  font-size: var(--font-size-5xl);
}

h2 {
  font-size: var(--font-size-4xl);
}

h3 {
  font-size: var(--font-size-3xl);
}

h4 {
  font-size: var(--font-size-2xl);
}

h5 {
  font-size: var(--font-size-xl);
}

h6 {
  font-size: var(--font-size-lg);
}

p {
  margin-bottom: var(--spacing-sm);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-dark);
}

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

/* Container & Layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-fluid {
  width: 100%;
  padding: 0 var(--spacing-md);
}

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

.section--light {
  background-color: var(--color-bg-light);
}

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

/* Header & Navigation */
.header {
  background-color: var(--color-white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: box-shadow var(--transition-base);
}

.header--scrolled {
  box-shadow: var(--shadow-md);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm) var(--spacing-md);
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  font-family: var(--font-secondary);
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
}

.logo__image {
  height: 50px;
  width: auto;
  margin-right: var(--spacing-sm);
}

/* Navigation */
.nav {
  display: flex;
  align-items: center;
}

.nav__list {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
  align-items: center;
}

.nav__item {
  position: relative;
}

.nav__link {
  display: block;
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--color-text);
  font-weight: 500;
  text-transform: uppercase;
  font-size: var(--font-size-sm);
  letter-spacing: 0.5px;
  transition: color var(--transition-fast);
}

.nav__link:hover,
.nav__link--active {
  color: var(--color-primary);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width var(--transition-base);
}

.nav__link:hover::after,
.nav__link--active::after {
  width: 80%;
}

/* Burger Menu (Mobile) */
.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
  z-index: 1001;
}

.burger__line {
  width: 25px;
  height: 3px;
  background-color: var(--color-primary);
  transition: all var(--transition-base);
  border-radius: 2px;
}

.burger--active .burger__line:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}

.burger--active .burger__line:nth-child(2) {
  opacity: 0;
}

.burger--active .burger__line:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* Hero Section */
.hero {
  position: relative;
  height: 80vh;
  min-height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: var(--color-white);
  text-align: center;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.6));
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  padding: var(--spacing-md);
}

.hero__title {
  font-size: var(--font-size-5xl);
  margin-bottom: var(--spacing-md);
  color: var(--color-white);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
  animation: fadeInUp 0.8s ease;
}

.hero__subtitle {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-lg);
  color: var(--color-white);
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
  animation: fadeInUp 1s ease;
}

.hero__button {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-xl);
  background-color: var(--color-primary);
  color: var(--color-white);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-radius: 4px;
  transition: all var(--transition-base);
  animation: fadeInUp 1.2s ease;
}

.hero__button:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  font-weight: 600;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  font-size: var(--font-size-sm);
}

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

.btn--primary:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.btn--secondary:hover {
  background-color: var(--color-secondary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

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

/* Cards */
.card {
  background-color: var(--color-white);
  border-radius: 8px;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: all var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-5px);
}

.card__image {
  width: 100%;
  height: 250px;
  object-fit: cover;
}

.card__body {
  padding: var(--spacing-md);
}

.card__title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-sm);
  color: var(--color-primary);
}

.card__text {
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
}

/* Grid System */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid--2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid--3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid--4 {
  grid-template-columns: repeat(4, 1fr);
}

/* Gallery */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0;
}

.gallery__item {
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  cursor: pointer;
  aspect-ratio: 4/3;
}

.gallery__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.gallery__item:hover .gallery__image {
  transform: scale(1.1);
}

.gallery__overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.gallery__item:hover .gallery__overlay {
  opacity: 1;
}

/* Lightbox */
.lightbox {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.95);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
}

.lightbox--active {
  display: flex;
}

.lightbox__image {
  max-width: 90%;
  max-height: 90vh;
  object-fit: contain;
}

.lightbox__close {
  position: absolute;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  background: none;
  border: none;
  color: var(--color-white);
  font-size: var(--font-size-4xl);
  cursor: pointer;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-base);
}

.lightbox__close:hover {
  transform: rotate(90deg);
}

.lightbox__prev,
.lightbox__next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.2);
  border: none;
  color: var(--color-white);
  font-size: var(--font-size-3xl);
  cursor: pointer;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background var(--transition-base);
}

.lightbox__prev {
  left: var(--spacing-lg);
}

.lightbox__next {
  right: var(--spacing-lg);
}

.lightbox__prev:hover,
.lightbox__next:hover {
  background: rgba(255, 255, 255, 0.4);
}

/* Price Table */
.price-table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--spacing-lg) 0;
  background-color: var(--color-white);
  box-shadow: var(--shadow-sm);
}

.price-table th,
.price-table td {
  padding: var(--spacing-md);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.price-table th {
  background-color: var(--color-primary);
  color: var(--color-white);
  font-weight: 600;
  text-transform: uppercase;
  font-size: var(--font-size-sm);
}

.price-table tr:hover {
  background-color: var(--color-bg-light);
}

.price-table__price {
  font-weight: 700;
  color: var(--color-primary);
  font-size: var(--font-size-lg);
}

/* Testimonials */
.testimonials {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin: var(--spacing-lg) 0;
}

.testimonial {
  background-color: var(--color-white);
  padding: var(--spacing-lg);
  border-radius: 8px;
  box-shadow: var(--shadow-sm);
  position: relative;
}

.testimonial::before {
  content: '"';
  position: absolute;
  top: -10px;
  left: var(--spacing-md);
  font-size: 80px;
  color: var(--color-primary);
  opacity: 0.2;
  font-family: var(--font-secondary);
}

.testimonial__text {
  font-style: italic;
  margin-bottom: var(--spacing-md);
  color: var(--color-text-light);
}

.testimonial__author {
  font-weight: 600;
  color: var(--color-primary);
}

.testimonial__rating {
  color: var(--color-secondary);
  font-size: var(--font-size-lg);
  margin-top: var(--spacing-xs);
}

/* Forms */
.form {
  max-width: 600px;
  margin: var(--spacing-lg) auto;
}

.form__group {
  margin-bottom: var(--spacing-md);
}

.form__label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
  color: var(--color-text);
}

.form__input,
.form__textarea,
.form__select {
  width: 100%;
  padding: var(--spacing-sm);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  transition: border-color var(--transition-fast);
}

.form__input:focus,
.form__textarea:focus,
.form__select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(26, 95, 63, 0.1);
}

.form__textarea {
  min-height: 150px;
  resize: vertical;
}

.form__error {
  color: #dc3545;
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-xs);
  display: none;
}

.form__error--active {
  display: block;
}

.form__success {
  background-color: #d4edda;
  color: #155724;
  padding: var(--spacing-md);
  border-radius: 4px;
  margin-bottom: var(--spacing-md);
  display: none;
}

.form__success--active {
  display: block;
}

/* Calendar */
.calendar {
  background-color: var(--color-white);
  border-radius: 8px;
  box-shadow: var(--shadow-sm);
  padding: var(--spacing-lg);
  margin: var(--spacing-lg) 0;
}

.calendar__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.calendar__month {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-primary);
}

.calendar__nav {
  background: none;
  border: none;
  font-size: var(--font-size-xl);
  cursor: pointer;
  color: var(--color-primary);
  padding: var(--spacing-xs);
  transition: color var(--transition-fast);
}

.calendar__nav:hover {
  color: var(--color-primary-dark);
}

.calendar__grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: var(--spacing-xs);
}

.calendar__day-name {
  text-align: center;
  font-weight: 600;
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  padding: var(--spacing-xs);
}

.calendar__day {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

.calendar__day--booked {
  background-color: var(--color-text-muted);
  color: var(--color-white);
  cursor: not-allowed;
}

.calendar__day--booked:hover {
  background-color: var(--color-text-muted);
}

.calendar__day--today {
  background-color: var(--color-primary);
  color: var(--color-white);
  font-weight: 600;
}

/* Footer */
.footer {
  background-color: var(--color-bg-dark);
  color: var(--color-white);
  padding: var(--spacing-xxl) 0 var(--spacing-lg);
}

.footer__content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer__section-title {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-md);
  color: var(--color-white);
}

.footer__link {
  display: block;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-xs);
  transition: color var(--transition-fast);
}

.footer__link:hover {
  color: var(--color-white);
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-lg);
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

/* Accordion */
.accordion {
  margin: var(--spacing-lg) 0;
}

.accordion__item {
  border-bottom: 1px solid var(--color-border);
}

.accordion__header {
  padding: var(--spacing-md);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: var(--color-bg-light);
  transition: background-color var(--transition-fast);
}

.accordion__header:hover {
  background-color: var(--color-border);
}

.accordion__title {
  font-size: var(--font-size-lg);
  margin: 0;
  color: var(--color-primary);
}

.accordion__icon {
  font-size: var(--font-size-xl);
  transition: transform var(--transition-base);
}

.accordion__item--active .accordion__icon {
  transform: rotate(180deg);
}

.accordion__content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}

.accordion__body {
  padding: var(--spacing-md);
}

.accordion__item--active .accordion__content {
  max-height: 1000px;
}

/* Breadcrumbs */
.breadcrumbs {
  padding: var(--spacing-md) 0;
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

.breadcrumbs__list {
  display: flex;
  list-style: none;
  gap: var(--spacing-xs);
  flex-wrap: wrap;
}

.breadcrumbs__item::after {
  content: '/';
  margin-left: var(--spacing-xs);
  color: var(--color-text-muted);
}

.breadcrumbs__item:last-child::after {
  display: none;
}

.breadcrumbs__link {
  color: var(--color-text-light);
}

.breadcrumbs__link:hover {
  color: var(--color-primary);
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease;
}

/* Utility Classes */
.text-center {
  text-align: center;
}

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

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

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

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

.hidden {
  display: none;
}

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

/* Responsive Design */
@media (max-width: 992px) {
  .nav__list {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    flex-direction: column;
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transform: translateX(-100%);
    transition: transform var(--transition-base);
    z-index: 999;
  }

  .nav__list--active {
    transform: translateX(0);
  }

  .burger {
    display: flex;
  }

  .hero__title {
    font-size: var(--font-size-4xl);
  }

  .hero__subtitle {
    font-size: var(--font-size-lg);
  }

  .grid--3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --font-size-5xl: 2rem;
    --font-size-4xl: 1.75rem;
    --font-size-3xl: 1.5rem;
  }

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

  .hero {
    height: 60vh;
    min-height: 400px;
  }

  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }

  .gallery {
    grid-template-columns: 1fr;
  }

  .testimonials {
    grid-template-columns: 1fr;
  }

  .footer__content {
    grid-template-columns: 1fr;
  }

  .lightbox__prev,
  .lightbox__next {
    width: 40px;
    height: 40px;
    font-size: var(--font-size-xl);
  }
}

@media (max-width: 576px) {
  .container {
    padding: 0 var(--spacing-sm);
  }

  .hero__title {
    font-size: var(--font-size-3xl);
  }

  .card__image {
    height: 200px;
  }
}