/* ==========================================================================
   LALATEC Real Estate Website - Main Stylesheet
   Modern, responsive design with CSS custom properties
   No external frameworks - pure CSS
   ========================================================================== */

/* ==========================================================================
   1. CSS Custom Properties (Design Tokens)
   ========================================================================== */
:root {
  /* Primary Colors */
  --color-primary: #0b5fff;
  --color-primary-hover: #0a52e6;
  --color-primary-light: rgba(11, 95, 255, 0.1);
  --color-primary-alpha: rgba(11, 95, 255, 0.8);

  /* Background Colors */
  --color-bg-light: #f8f9fa;
  --color-bg-dark: #1a1a1a;
  --color-bg-card-light: #ffffff;
  --color-bg-card-dark: #2a2a2a;
  --color-bg-input: #1a1a1a;

  /* Text Colors */
  --color-text-light: #ffffff;
  --color-text-dark: #0a0a0a;
  --color-text-muted: #6c757d;
  --color-text-secondary-light: #e9ecef;
  --color-text-secondary-dark: #adb5bd;

  /* Border Colors */
  --color-border-light: #dee2e6;
  --color-border-dark: #495057;
  --color-border-input: #444444;

  /* Status Colors */
  --color-success: #28a745;
  --color-error: #dc3545;
  --color-warning: #ffc107;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1), 0 2px 4px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.15), 0 3px 6px rgba(0, 0, 0, 0.1);
  --shadow-hover: 0 14px 28px rgba(0, 0, 0, 0.25), 0 10px 10px rgba(0, 0, 0, 0.22);
  --shadow-header: 0 2px 10px rgba(0, 0, 0, 0.3);

  /* Typography */
  --font-primary: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-heading: 'Segoe UI', system-ui, -apple-system, sans-serif;

  /* Font Sizes (Mobile First) */
  --text-xs: 0.75rem;    /* 12px */
  --text-sm: 0.875rem;   /* 14px */
  --text-base: 1rem;     /* 16px */
  --text-lg: 1.125rem;   /* 18px */
  --text-xl: 1.25rem;   /* 20px */
  --text-2xl: 1.5rem;    /* 24px */
  --text-3xl: 1.875rem;  /* 30px */
  --text-4xl: 2.25rem;   /* 36px */
  --text-5xl: 3rem;      /* 48px */

  /* Font Weights */
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;

  /* Line Heights */
  --leading-tight: 1.25;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  --leading-loose: 2;

  /* Letter Spacing */
  --tracking-tight: -0.025em;
  --tracking-normal: 0;
  --tracking-wide: 0.025em;

  /* Spacing System */
  --space-1: 0.25rem;   /* 4px */
  --space-2: 0.5rem;    /* 8px */
  --space-3: 0.75rem;   /* 12px */
  --space-4: 1rem;      /* 16px */
  --space-5: 1.25rem;   /* 20px */
  --space-6: 1.5rem;    /* 24px */
  --space-8: 2rem;      /* 32px */
  --space-10: 2.5rem;   /* 40px */
  --space-12: 3rem;     /* 48px */
  --space-16: 4rem;     /* 64px */
  --space-20: 5rem;     /* 80px */
  --space-24: 6rem;     /* 96px */

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
  --transition-slow: 500ms ease;

  /* Z-index Scale */
  --z-header: 1000;
  --z-modal: 2000;
  --z-tooltip: 3000;
}

/* ==========================================================================
   2. CSS Reset & Base Styles
   ========================================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  font-size: 16px;
}

body {
  font-family: var(--font-primary);
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--color-text-light);
  background-color: var(--color-bg-dark);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

/* Hide ALT text from visual display while keeping it accessible to screen readers */
img[alt] {
  font-size: 0;
  line-height: 0;
  color: transparent;
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input,
textarea {
  font-family: inherit;
  font-size: inherit;
}

ul,
ol {
  list-style: none;
}

/* ==========================================================================
   3. Accessibility & Focus States
   ========================================================================== */
:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

:focus:not(:focus-visible) {
  outline: none;
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}


/* ==========================================================================
   4. Typography
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--font-bold);
  line-height: var(--leading-tight);
  color: inherit;
}

h1 {
  font-size: var(--text-3xl);
}

h2 {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-8);
  text-align: center;
}

h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-4);
}

p {
  margin-bottom: var(--space-4);
}

/* ==========================================================================
   5. Layout & Container
   ========================================================================== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

/* ==========================================================================
   6. Header Component
   ========================================================================== */
.header {
  position: sticky;
  top: 0;
  background-color: var(--color-bg-card-dark);
  padding: var(--space-4) var(--space-5);
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: var(--z-header);
  box-shadow: var(--shadow-header);
  transition: background-color var(--transition-normal);
}

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.header__logo img {
  height: 40px;
  width: auto;
}

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


/* Navigation - Hidden on mobile by default (mobile-first) */
.header__nav {
  gap: var(--space-6);
  display: none;
}

.header__nav-link {
  color: var(--color-text-light);
  font-weight: var(--font-medium);
  font-size: var(--text-sm);
  transition: color var(--transition-fast);
  padding: var(--space-2) 0;
  position: relative;
}

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

.header__nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width var(--transition-normal);
}

.header__nav-link:hover::after {
  width: 100%;
}

/* Social Links in Header */
.header__social {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.header__social-link {
  color: var(--color-text-light);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.header__social-link:hover {
  background-color: var(--color-primary-light);
}

/* Mobile Menu Toggle (Hamburger) - Visible on mobile (mobile-first) */
.header__menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  width: 30px;
  height: 25px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
}

.header__menu-toggle span {
  width: 100%;
  height: 3px;
  background-color: var(--color-text-light);
  border-radius: var(--radius-full);
  transition: all var(--transition-normal);
}

/* ==========================================================================
   7. Hero Section
   ========================================================================== */
.hero {
  position: relative;
  background-color: #333;
  background-image: url('fotos/main.webp');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  height: 100vh;
  min-height: 600px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1;
}

.hero__logo {
  position: relative;
  width: 90vw;
  max-width: 80vh;
  max-height: 60vh;
  filter: invert(1);
  z-index: 2;
  opacity: 0.9;
}

.hero__image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.hero__content {
  position: relative;
  z-index: 3;
  padding: var(--space-6);
  max-width: 800px;
}

.hero__title {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-6);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
  line-height: var(--leading-tight);
}

.hero__cta {
  display: inline-block;
  background-color: var(--color-primary);
  color: var(--color-text-light);
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-sm);
  font-weight: var(--font-semibold);
  font-size: var(--text-lg);
  transition: all var(--transition-fast);
  margin-top: var(--space-4);
  box-shadow: var(--shadow-md);
}

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

/* ==========================================================================
   7.1 Hero Eyecatcher Section
   ========================================================================== */
.hero__eyecatcher {
  position: absolute;
  right: var(--space-6);
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
}

.hero__eyecatcher-badge {
  background-color: var(--color-error);
  width: 160px;
  height: 160px;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-4);
  box-shadow: 0 4px 20px rgba(220, 53, 69, 0.5);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.hero__eyecatcher-badge:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 25px rgba(220, 53, 69, 0.6);
}

.hero__eyecatcher-slogan {
  font-size: var(--text-sm);
  font-weight: var(--font-bold);
  color: var(--color-text-light);
  margin-bottom: var(--space-2);
  line-height: var(--leading-tight);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

.hero__eyecatcher-link {
  display: inline-block;
  background-color: var(--color-text-light);
  color: var(--color-error);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.hero__eyecatcher-link:hover {
  background-color: var(--color-bg-light);
  transform: translateY(-1px);
}

.hero__eyecatcher-link:focus {
  outline: 2px solid var(--color-text-light);
  outline-offset: 2px;
}

/* ==========================================================================
   8. Section Base Styles
   ========================================================================== */
.section {
  padding: var(--space-16) var(--space-5);
}

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

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

.section__title {
  margin-bottom: var(--space-12);
}

/* ==========================================================================
   9. About Section
   ========================================================================== */
.about {
  background-color: var(--color-bg-card-dark);
}

.about__content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.about__text {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: var(--color-text-secondary-dark);
}

/* ==========================================================================
   10. Features Section
   ========================================================================== */
.features {
  background-color: var(--color-bg-dark);
}

.features__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  max-width: 1200px;
  margin: 0 auto;
}

.feature-card {
  background-color: var(--color-bg-card-dark);
  padding: var(--space-8);
  border-radius: var(--radius-md);
  text-align: center;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.feature-card__icon {
  font-size: var(--text-5xl);
  margin-bottom: var(--space-4);
  color: var(--color-primary);
}

.feature-card__title {
  margin-bottom: var(--space-3);
  font-size: var(--text-lg);
}

.feature-card__description {
  color: var(--color-text-secondary-dark);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  margin-bottom: 0;
}

/* ==========================================================================
   11. Gallery Section
   ========================================================================== */
.gallery {
  background-color: var(--color-bg-card-dark);
}

.gallery__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  max-width: 1200px;
  margin: 0 auto;
}

.gallery__item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  aspect-ratio: 4 / 3;
  cursor: pointer;
}

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

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

.gallery__link {
  display: block;
  text-align: center;
  margin-top: var(--space-8);
}

.gallery__link a {
  color: var(--color-primary);
  font-weight: var(--font-semibold);
  font-size: var(--text-lg);
  border-bottom: 2px solid var(--color-primary);
  padding-bottom: var(--space-1);
  transition: color var(--transition-fast);
}

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

/* ==========================================================================
   11.1 Gallery Page Styles
   ========================================================================== */
.gallery-page {
  background-color: var(--color-bg-card-dark);
}

.gallery-page__description {
  text-align: center;
  font-size: var(--text-lg);
  color: var(--color-text-secondary-dark);
  max-width: 600px;
  margin: 0 auto var(--space-10);
}

.gallery-page__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  max-width: 1200px;
  margin: 0 auto;
}

.gallery-page__item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  aspect-ratio: 4 / 3;
  cursor: pointer;
  background-color: var(--color-bg-card-dark);
}

.gallery-page__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

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

.gallery-page__item-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-normal);
}

.gallery-page__item:hover .gallery-page__item-overlay {
  opacity: 1;
}

.gallery-page__item-zoom {
  font-size: var(--text-3xl);
  color: var(--color-text-light);
}

.gallery-page__back {
  display: block;
  text-align: center;
  margin-top: var(--space-12);
}

/* Lazy loading placeholder animation */
.lazy {
  background-color: var(--color-bg-card-dark);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

/* ==========================================================================
   11.2 Lightbox Styles
   ========================================================================== */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: var(--z-modal);
  display: none;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.lightbox--active {
  display: flex;
  opacity: 1;
}

.lightbox__overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.95);
  z-index: 1;
}

.lightbox__content {
  position: relative;
  z-index: 2;
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox__image-container {
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox__image {
  max-width: 100%;
  max-height: 85vh;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
}

.lightbox__close,
.lightbox__prev,
.lightbox__next {
  position: absolute;
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--color-text-light);
  border: none;
  cursor: pointer;
  padding: var(--space-3);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 3;
}

.lightbox__close:hover,
.lightbox__prev:hover,
.lightbox__next:hover {
  background-color: rgba(255, 255, 255, 0.2);
  transform: scale(1.1);
}

.lightbox__close:focus,
.lightbox__prev:focus,
.lightbox__next:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.lightbox__close {
  top: var(--space-6);
  right: var(--space-6);
  font-size: var(--text-2xl);
  width: 48px;
  height: 48px;
}

.lightbox__prev {
  left: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  font-size: var(--text-3xl);
  width: 48px;
  height: 48px;
}

.lightbox__next {
  right: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  font-size: var(--text-3xl);
  width: 48px;
  height: 48px;
}

.lightbox__counter {
  position: absolute;
  bottom: var(--space-6);
  left: 50%;
  transform: translateX(-50%);
  background-color: rgba(0, 0, 0, 0.7);
  color: var(--color-text-light);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  z-index: 3;
}

/* ==========================================================================
   11.3 Mobile Menu Active State
   ========================================================================== */
@media (max-width: 767px) {
  .header__nav {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background-color: var(--color-bg-card-dark);
    flex-direction: column;
    padding: var(--space-4);
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
  }

  .header__nav--active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .header__nav-link {
    padding: var(--space-4) var(--space-5);
    display: block;
    border-radius: var(--radius-sm);
  }

  .header__nav-link:hover {
    background-color: var(--color-primary-light);
  }

  .header__social {
    position: fixed;
    bottom: var(--space-4);
    left: 0;
    right: 0;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4);
    background-color: var(--color-bg-card-dark);
    transform: translateY(100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
  }

  .header__nav--active ~ .header__social {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  /* Hamburger animation when active */
  .header__menu-toggle--active span:nth-child(1) {
    transform: translateY(11px) rotate(45deg);
  }

  .header__menu-toggle--active span:nth-child(2) {
    opacity: 0;
  }

  .header__menu-toggle--active span:nth-child(3) {
    transform: translateY(-11px) rotate(-45deg);
  }
  
  /* Hero Eyecatcher - Mobile responsive positioning */
  .hero__eyecatcher {
    right: var(--space-3);
    top: auto;
    bottom: var(--space-16);
    transform: none;
  }

  .hero__eyecatcher-badge {
    width: 120px;
    height: 120px;
    padding: var(--space-3);
  }

  .hero__eyecatcher-slogan {
    font-size: var(--text-xs);
  }

  .hero__eyecatcher-link {
    font-size: 0.65rem;
    padding: var(--space-1) var(--space-2);
  }
}

/* ==========================================================================
   12. Location Section
   ========================================================================== */
.location {
  background-color: var(--color-bg-dark);
}

.location__container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  align-items: center;
}

.location__map {
  background-color: var(--color-bg-card-dark);
  height: auto;
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.location__map iframe {
  width: 100%;
  height: 300px;
  border: none;
  display: block;
}

.location__map-link {
  display: inline-block;
  margin: var(--space-4);
  color: var(--color-primary);
  text-decoration: underline;
  font-weight: var(--font-medium);
}

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

.location__details h3 {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-5);
}

.location__details p {
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--color-text-secondary-dark);
  margin-bottom: var(--space-4);
}

.location__address {
  background-color: var(--color-bg-card-dark);
  padding: var(--space-5);
  border-radius: var(--radius-md);
  margin-top: var(--space-5);
}

.location__address p {
  margin-bottom: var(--space-2);
  color: var(--color-text-light);
}

.location__address p:last-child {
  margin-bottom: 0;
}

/* ==========================================================================
   13. Contact Section
   ========================================================================== */
.contact {
  background-color: var(--color-bg-card-dark);
}

.contact__container {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
}

.contact__form,
.contact__info {
  background-color: var(--color-bg-dark);
  padding: var(--space-8);
  border-radius: var(--radius-md);
  height: 100%;
}

.contact__form h3 {
  margin-bottom: var(--space-6);
  font-size: var(--text-xl);
}

.contact__info h3 {
  margin-bottom: var(--space-6);
  font-size: var(--text-xl);
}

.contact__info p {
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--color-text-secondary-dark);
  margin-bottom: var(--space-4);
}

.contact__info a {
  color: var(--color-primary);
  transition: color var(--transition-fast);
}

.contact__info a:hover {
  color: var(--color-primary-hover);
  text-decoration: underline;
}

/* Form Styles */
.form-group {
  margin-bottom: var(--space-5);
}

.form-group label {
  display: block;
  margin-bottom: var(--space-2);
  font-weight: var(--font-medium);
  color: var(--color-text-light);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--space-3);
  border: 1px solid var(--color-border-input);
  border-radius: var(--radius-sm);
  background-color: var(--color-bg-input);
  color: var(--color-text-light);
  font-size: var(--text-base);
  transition: border-color var(--transition-fast);
}

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

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-muted);
}

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

.submit-btn {
  background-color: var(--color-primary);
  color: var(--color-text-light);
  border: none;
  padding: var(--space-3) var(--space-8);
  border-radius: var(--radius-sm);
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.submit-btn:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-2px);
}

.submit-btn:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ==========================================================================
   13.1 Button Component System
   ========================================================================== */

/* Base Button Component */
.btn {
  display: inline-block;
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-primary);
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  text-align: center;
  text-decoration: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 2px solid transparent;
  line-height: var(--leading-normal);
}

.btn:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.btn:focus:not(:focus-visible) {
  outline: none;
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Primary Button Modifier */
.btn--primary {
  background-color: var(--color-primary);
  color: var(--color-text-light);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

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

.btn--primary:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

/* Secondary Button Modifier */
.btn--secondary {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn--secondary:hover {
  background-color: var(--color-primary-light);
  color: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  transform: translateY(-2px);
}

.btn--secondary:active {
  transform: translateY(0);
  background-color: var(--color-primary-light);
}

/* ==========================================================================
   14. Footer
   ========================================================================== */
.footer {
  background-color: var(--color-bg-card-dark);
  text-align: center;
  padding: var(--space-10) var(--space-5);
}

.footer__content {
  max-width: 1200px;
  margin: 0 auto;
}

.footer__nav {
  margin-bottom: var(--space-6);
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--space-6);
}

.footer__nav a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: var(--font-medium);
  transition: all var(--transition-fast);
  padding: var(--space-2);
}

.footer__nav a:hover {
  color: var(--color-primary-hover);
  text-decoration: underline;
}

.footer__copyright {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  margin: 0;
}

/* ==========================================================================
   15. Responsive Design - Tablet (768px and up)
   ========================================================================== */
@media (min-width: 768px) {
  /* Typography */
  h1 {
    font-size: var(--text-4xl);
  }

  h2 {
    font-size: var(--text-3xl);
  }

  /* Header */
  .header__menu-toggle {
    display: none;
  }

  .header__nav {
    display: flex;
  }

  /* Hero */
  .hero__title {
    font-size: var(--text-5xl);
  }

  /* Hero Eyecatcher - Tablet */
  .hero__eyecatcher {
    right: var(--space-8);
  }

  .hero__eyecatcher-badge {
    width: 140px;
    height: 140px;
  }

  .hero__eyecatcher-slogan {
    font-size: var(--text-xs);
  }

  /* Sections */
  .section {
    padding: var(--space-20) var(--space-8);
  }

  /* Features Grid */
  .features__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Gallery Grid */
  .gallery__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Location */
  .location__container {
    grid-template-columns: 1fr 1fr;
  }

  .location__map iframe {
    height: 400px;
  }

  /* Contact */
  .contact__container {
    grid-template-columns: 1fr 1fr;
  }

  /* Footer */
  .footer {
    padding: var(--space-12) var(--space-8);
  }
}

/* ==========================================================================
   16. Responsive Design - Desktop (1024px and up)
   ========================================================================== */
@media (min-width: 1024px) {
  /* Typography */
  h1 {
    font-size: var(--text-5xl);
  }

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

  /* Sections */
  .section {
    padding: var(--space-24) var(--space-10);
  }

  /* Features Grid */
  .features__grid {
    grid-template-columns: repeat(4, 1fr);
  }

  /* Gallery Grid */
  .gallery__grid {
    grid-template-columns: repeat(4, 1fr);
  }

  /* Container */
  .container {
    padding: 0 var(--space-10);
  }

  /* Hero Eyecatcher - Desktop full size */
  .hero__eyecatcher {
    right: var(--space-10);
  }

  .hero__eyecatcher-badge {
    width: 160px;
    height: 160px;
  }

  .hero__eyecatcher-slogan {
    font-size: var(--text-sm);
  }
}

/* ==========================================================================
   17. Utility Classes
   ========================================================================== */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

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

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

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

/* ==========================================================================
   18. Print Styles
   ========================================================================== */
@media print {
  .header,
  .hero,
  .gallery__link {
    display: none;
  }

  body {
    background: white;
    color: black;
  }

  .section {
    padding: 20px;
  }

  a {
    color: black;
    text-decoration: underline;
  }
}

/* ==========================================================================
   19. Reduced Motion
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ==========================================================================
   20. Gallery Page Responsive Enhancements
   ========================================================================== */
@media (min-width: 768px) {
  .gallery-page__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .lightbox__close {
    top: var(--space-8);
    right: var(--space-8);
  }

  .lightbox__prev {
    left: var(--space-6);
  }

  .lightbox__next {
    right: var(--space-6);
  }
}

@media (min-width: 1024px) {
  .gallery-page__grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .lightbox__close {
    top: var(--space-10);
    right: var(--space-10);
  }

  .lightbox__prev {
    left: var(--space-8);
  }

  .lightbox__next {
    right: var(--space-8);
  }
}

/* ==========================================================================
   21. Lightbox Touch Optimizations
   ========================================================================== */
@media (hover: none) and (pointer: coarse) {
  .lightbox__close,
  .lightbox__prev,
  .lightbox__next {
    width: 56px;
    height: 56px;
    font-size: var(--text-2xl);
  }

  .lightbox__prev {
    left: var(--space-2);
  }

  .lightbox__next {
    right: var(--space-2);
  }
}

/* ==========================================================================
   22. Full Gallery Page Enhancements
   ========================================================================== */
.gallery--full {
  min-height: 100vh;
  padding-bottom: var(--space-20);
}

.gallery--full .gallery__grid {
  max-width: 1400px;
}

/* Gallery Back Link */
.gallery__back-link {
  display: block;
  text-align: center;
  margin-top: var(--space-12);
}

.gallery__back-link a {
  color: var(--color-primary);
  font-weight: var(--font-semibold);
  font-size: var(--text-lg);
  border-bottom: 2px solid var(--color-primary);
  padding-bottom: var(--space-1);
  transition: color var(--transition-fast);
  display: inline-block;
}

.gallery__back-link a:hover {
  color: var(--color-primary-hover);
}

/* Lazy Loading Image Styles */
img[data-src] {
  filter: blur(10px);
  transition: filter var(--transition-normal);
}

img[data-src].loaded,
img:not([data-src]) {
  filter: blur(0);
}

/* Gallery Item Hover Enhancement */
.gallery__item::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0) 0%,
    rgba(0, 0, 0, 0.3) 100%
  );
  opacity: 0;
  transition: opacity var(--transition-normal);
  pointer-events: none;
}

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

/* Add zoom icon on hover */
.gallery__item::before {
  content: '🔍';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0);
  font-size: var(--text-3xl);
  z-index: 2;
  opacity: 0;
  transition: all var(--transition-normal);
}

.gallery__item:hover::before {
  transform: translate(-50%, -50%) scale(1);
  opacity: 1;
}