/* ============================================
   RUNA INMOBILIARIA - PREMIUM DESIGN SYSTEM
   ============================================ */

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

/* === CSS VARIABLES === */
:root {
  /* Colors */
  --color-primary: #1a1a1a;
  --color-secondary: #2d2d2d;
  --color-accent: #c9a961;
  --color-accent-light: #d4b876;
  --color-white: #ffffff;
  --color-off-white: #f8f8f8;
  --color-light-gray: #e5e5e5;
  --color-medium-gray: #999999;
  --color-dark-gray: #4a4a4a;

  /* Typography */
  --font-serif: 'Cormorant Garamond', serif;
  --font-sans: 'Inter', sans-serif;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  --spacing-xxl: 8rem;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-medium: 0.4s ease;
  --transition-slow: 0.6s ease;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);

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

/* === RESET & BASE === */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-sans);
  color: var(--color-primary);
  background-color: var(--color-white);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

/* === TYPOGRAPHY === */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-serif);
  font-weight: 500;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 300;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 400;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
}

h4 {
  font-size: clamp(1.25rem, 2.5vw, 2rem);
}

p {
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  line-height: 1.8;
  color: var(--color-dark-gray);
}

.text-accent {
  color: var(--color-accent);
}

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

/* === LAYOUT === */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

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

.section-hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* === HEADER & NAVIGATION === */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-light-gray);
  transition: var(--transition-medium);
}

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

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) 0;
}

.logo {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--color-primary);
}

.nav-menu {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  position: relative;
  padding: 0.5rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-accent);
  transition: var(--transition-fast);
}

/* Mobile Toggle — igual que el botón del panel CRM */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 44px;
  height: 44px;
  background: var(--color-primary);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  padding: 10px;
  z-index: 1001;
  transition: background 0.2s ease;
}

.nav-toggle:hover {
  background: var(--color-secondary);
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: #ffffff;
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* Animación X al abrir */
.nav-toggle.active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

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

.nav-toggle.active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* === BUTTONS === */
.btn {
  display: inline-block;
  padding: 1rem 2.5rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  transition: var(--transition-medium);
  position: relative;
  overflow: hidden;
}

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

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

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

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

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

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

/* === HERO SECTION === */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--color-off-white) 0%, var(--color-white) 100%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 80%;
  height: 200%;
  background: radial-gradient(circle, rgba(201, 169, 97, 0.08) 0%, transparent 70%);
  animation: float 20s ease-in-out infinite;
}

@keyframes float {

  0%,
  100% {
    transform: translate(0, 0) rotate(0deg);
  }

  50% {
    transform: translate(-20px, 20px) rotate(5deg);
  }
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
  padding: var(--spacing-xxl) 0;
}

.hero-title {
  margin-bottom: var(--spacing-md);
  animation: fadeInUp 1s ease;
}

.hero-subtitle {
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  color: var(--color-dark-gray);
  margin-bottom: var(--spacing-lg);
  animation: fadeInUp 1s ease 0.2s backwards;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 1s ease 0.4s backwards;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* === CARDS === */
.card {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition-medium);
  box-shadow: var(--shadow-sm);
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.card-image {
  width: 100%;
  height: 300px;
  object-fit: cover;
  transition: var(--transition-slow);
}

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

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

.card-title {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-xs);
}

.card-subtitle {
  font-size: 0.95rem;
  color: var(--color-medium-gray);
  margin-bottom: var(--spacing-sm);
}

.card-price {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  color: var(--color-accent);
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
}

.card-features {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
  flex-wrap: wrap;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.9rem;
  color: var(--color-dark-gray);
}

/* === GRID LAYOUTS === */
.grid {
  display: grid;
  gap: var(--spacing-md);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

/* === FEATURES SECTION === */
.features {
  background-color: var(--color-off-white);
}

.feature-card {
  text-align: center;
  padding: var(--spacing-lg);
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  transition: var(--transition-medium);
}

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

.feature-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto var(--spacing-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--color-accent);
}

.feature-title {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xs);
}

.feature-description {
  font-size: 0.95rem;
  color: var(--color-dark-gray);
}

/* === FORMS === */
.form-group {
  margin-bottom: var(--spacing-sm);
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  border: 1px solid var(--color-light-gray);
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
  background-color: var(--color-white);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(201, 169, 97, 0.1);
}

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

/* === FOOTER === */
.footer {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-xl) 0 var(--spacing-md);
}

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

.footer-section h4 {
  color: var(--color-accent);
  margin-bottom: var(--spacing-sm);
  font-size: 1.125rem;
}

.footer-section p,
.footer-section a {
  color: var(--color-light-gray);
  font-size: 0.95rem;
  line-height: 1.8;
}

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

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.social-links {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-top: 1.5rem;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: var(--color-accent);
  color: var(--color-white) !important;
  border-radius: 50%;
  font-size: 1.25rem;
  transition: var(--transition-fast);
}

.social-link:hover {
  transform: translateY(-3px);
  background-color: var(--color-white);
  color: var(--color-accent) !important;
}

.footer-bottom {
  border-top: 1px solid var(--color-secondary);
  padding-top: var(--spacing-sm);
  text-align: center;
  color: var(--color-medium-gray);
  font-size: 0.875rem;
}

/* === UTILITIES === */
.text-center {
  text-align: center;
}

.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);
}

.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);
}

.fade-in {
  animation: fadeIn 1s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

.slide-in-left {
  animation: slideInLeft 0.8s ease;
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.slide-in-right {
  animation: slideInRight 0.8s ease;
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    flex-direction: column;
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-medium);
  }

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

  .nav-toggle {
    display: flex;
  }

  .hero-cta {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    max-width: 300px;
  }

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

@media (max-width: 480px) {
  :root {
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --spacing-xxl: 5rem;
  }

  .container {
    padding: 0 var(--spacing-sm);
  }
}