/* =============================================
   ASOCLUBNUAM - Sitio Web Institucional
   Sistema de Diseño CSS
   ============================================= */

/* ===== VARIABLES CSS ===== */
:root {
  /* Paleta de colores inspirada en ONGs */
  --primary: #1e5f8a;
  /* Azul institucional */
  --primary-dark: #164a6d;
  --primary-light: #2a7ab5;
  --secondary: #e67e22;
  /* Naranja acción/energía */
  --secondary-dark: #d35400;
  --secondary-light: #f39c12;
  --accent: #27ae60;
  /* Verde esperanza/crecimiento */
  --accent-dark: #1e8449;
  --accent-light: #2ecc71;

  /* Neutros */
  --white: #ffffff;
  --gray-50: #f8f9fa;
  --gray-100: #f1f3f5;
  --gray-200: #e9ecef;
  --gray-300: #dee2e6;
  --gray-400: #ced4da;
  --gray-500: #adb5bd;
  --gray-600: #868e96;
  --gray-700: #495057;
  --gray-800: #343a40;
  --gray-900: #212529;
  --black: #000000;

  /* Tipografía */
  --font-primary: 'Montserrat', sans-serif;
  --font-secondary: 'Open Sans', sans-serif;

  /* Tamaños de fuente */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;

  /* Espaciado */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;

  /* Bordes y sombras */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);

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

  /* Contenedor */
  --container-max: 1200px;
  --container-padding: 1.5rem;
}

/* ===== RESET Y BASE ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-secondary);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--gray-800);
  background-color: var(--white);
  overflow-x: hidden;
}

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

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

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-primary);
  font-weight: 700;
  line-height: 1.2;
  color: var(--gray-900);
}

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

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

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

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

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

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

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

/* ===== UTILIDADES ===== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section {
  padding: var(--spacing-4xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section-header h2 {
  margin-bottom: var(--spacing-md);
  position: relative;
  display: inline-block;
}

.section-header h2::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: var(--radius-full);
}

.section-header p {
  color: var(--gray-600);
  font-size: var(--text-lg);
  max-width: 600px;
  margin: var(--spacing-lg) auto 0;
}

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

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

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

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

.bg-light {
  background-color: var(--gray-50);
}

.bg-dark {
  background-color: var(--gray-900);
  color: var(--white);
}

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

.bg-gradient {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: var(--white);
}

/* ===== BOTONES ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  font-family: var(--font-primary);
  font-size: var(--text-base);
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: var(--white);
  box-shadow: 0 4px 15px rgba(30, 95, 138, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(30, 95, 138, 0.4);
}

.btn-secondary {
  background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-light) 100%);
  color: var(--white);
  box-shadow: 0 4px 15px rgba(230, 126, 34, 0.3);
}

.btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(230, 126, 34, 0.4);
}

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

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

.btn-lg {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: var(--text-lg);
}

/* ===== NAVEGACIÓN ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--white);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
}

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

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

.navbar-logo img {
  height: 50px;
  width: auto;
}

.navbar-logo span {
  font-family: var(--font-primary);
  font-weight: 700;
  font-size: var(--text-xl);
  color: var(--primary);
}

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

.navbar-link {
  font-family: var(--font-primary);
  font-weight: 500;
  color: var(--gray-700);
  padding: var(--spacing-sm) var(--spacing-md);
  position: relative;
  transition: color var(--transition-fast);
}

.navbar-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--secondary);
  transition: all var(--transition-normal);
  transform: translateX(-50%);
}

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

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

.navbar-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
}

.navbar-toggle span {
  width: 25px;
  height: 3px;
  background: var(--gray-800);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

/* ===== HERO SECTION - DISEÑO JUVENIL ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  background: linear-gradient(135deg,
      #667eea 0%,
      #764ba2 25%,
      #f093fb 50%,
      #f5576c 75%,
      #e67e22 100%);
  background-size: 400% 400%;
  animation: gradientShift 15s ease infinite;
  overflow: hidden;
}

@keyframes gradientShift {
  0% {
    background-position: 0% 50%;
  }

  50% {
    background-position: 100% 50%;
  }

  100% {
    background-position: 0% 50%;
  }
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 40% 40%, rgba(255, 255, 255, 0.1) 0%, transparent 30%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background:
    radial-gradient(circle, rgba(255, 255, 255, 0.1) 1px, transparent 1px);
  background-size: 50px 50px;
  animation: moveParticles 20s linear infinite;
  pointer-events: none;
}

@keyframes moveParticles {
  0% {
    transform: translate(0, 0);
  }

  100% {
    transform: translate(50px, 50px);
  }
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--white);
  padding: var(--spacing-4xl) 0;
}

.hero-logo {
  max-width: 280px;
  width: 100%;
  height: auto;
  margin: 0 auto var(--spacing-2xl);
  border-radius: var(--radius-lg);
  box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.3),
    0 0 0 5px rgba(255, 255, 255, 0.2),
    0 0 40px rgba(255, 255, 255, 0.1);
  animation: logoFloat 4s ease-in-out infinite, logoGlow 3s ease-in-out infinite alternate;
  transition: transform var(--transition-normal);
}

.hero-logo:hover {
  transform: scale(1.05);
}

@keyframes logoFloat {

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

  25% {
    transform: translateY(-10px) rotate(1deg);
  }

  75% {
    transform: translateY(-5px) rotate(-1deg);
  }
}

@keyframes logoGlow {
  0% {
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3), 0 0 0 5px rgba(255, 255, 255, 0.2), 0 0 40px rgba(255, 255, 255, 0.1);
  }

  100% {
    box-shadow: 0 25px 70px rgba(0, 0, 0, 0.4), 0 0 0 8px rgba(255, 255, 255, 0.3), 0 0 60px rgba(255, 255, 255, 0.2);
  }
}

.hero h1 {
  color: var(--white);
  margin-bottom: var(--spacing-lg);
  text-shadow: 3px 3px 6px rgba(0, 0, 0, 0.3);
  animation: fadeInUp 1s ease forwards;
}

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

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

.hero-subtitle {
  font-size: var(--text-xl);
  opacity: 0.95;
  margin-bottom: var(--spacing-2xl);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.2);
  animation: fadeInUp 1s ease 0.2s forwards;
  opacity: 0;
  animation-fill-mode: forwards;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 1s ease 0.4s forwards;
  opacity: 0;
  animation-fill-mode: forwards;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: var(--spacing-3xl);
  margin-top: var(--spacing-4xl);
  flex-wrap: wrap;
  animation: fadeInUp 1s ease 0.6s forwards;
  opacity: 0;
  animation-fill-mode: forwards;
}

.stat-item {
  text-align: center;
  padding: var(--spacing-lg);
  background: rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-lg);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all var(--transition-normal);
  min-width: 140px;
}

.stat-item:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: translateY(-5px) scale(1.05);
}

.stat-number {
  font-family: var(--font-primary);
  font-size: var(--text-4xl);
  font-weight: 800;
  color: #fff;
  display: block;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.stat-label {
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 1px;
  opacity: 0.9;
  margin-top: var(--spacing-xs);
}

/* Shapes decorativas */
.hero .shape {
  position: absolute;
  border-radius: 50%;
  opacity: 0.1;
  animation: pulse 4s ease-in-out infinite;
}

.hero .shape-1 {
  width: 300px;
  height: 300px;
  background: var(--white);
  top: 10%;
  right: -100px;
  animation-delay: 0s;
}

.hero .shape-2 {
  width: 200px;
  height: 200px;
  background: var(--secondary);
  bottom: 20%;
  left: -50px;
  animation-delay: 1s;
}

.hero .shape-3 {
  width: 150px;
  height: 150px;
  background: var(--accent);
  top: 60%;
  right: 10%;
  animation-delay: 2s;
}

@keyframes pulse {

  0%,
  100% {
    transform: scale(1);
    opacity: 0.1;
  }

  50% {
    transform: scale(1.1);
    opacity: 0.15;
  }
}


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

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

.card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

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

.card-title {
  font-size: var(--text-xl);
  margin-bottom: var(--spacing-sm);
}

.card-text {
  color: var(--gray-600);
  margin-bottom: var(--spacing-md);
}

.card-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  font-size: var(--text-sm);
  color: var(--gray-500);
}

/* ===== FEATURE CARDS ===== */
.feature-card {
  text-align: center;
  padding: var(--spacing-2xl);
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

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

.feature-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  border-radius: var(--radius-full);
  color: var(--white);
  font-size: var(--text-3xl);
}

.feature-card:nth-child(2) .feature-icon {
  background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-light) 100%);
}

.feature-card:nth-child(3) .feature-icon {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
}

.feature-card h4 {
  margin-bottom: var(--spacing-md);
}

.feature-card p {
  color: var(--gray-600);
}

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

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

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

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

/* ===== ABOUT SECTION ===== */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
}

.about-image {
  position: relative;
}

.about-image img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
}

.about-image::before {
  content: '';
  position: absolute;
  top: -20px;
  left: -20px;
  right: 20px;
  bottom: 20px;
  border: 4px solid var(--secondary);
  border-radius: var(--radius-lg);
  z-index: -1;
}

.about-text h2 {
  margin-bottom: var(--spacing-lg);
}

.about-text .lead {
  font-size: var(--text-lg);
  color: var(--primary);
  margin-bottom: var(--spacing-lg);
}

.values-list {
  margin-top: var(--spacing-xl);
}

.value-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.value-icon {
  width: 40px;
  height: 40px;
  min-width: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: var(--white);
  border-radius: var(--radius-full);
}

/* ===== PROGRAMS SECTION ===== */
.program-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
}

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

.program-card:hover img {
  transform: scale(1.1);
}

.program-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--spacing-xl);
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
  color: var(--white);
}

.program-overlay h4 {
  color: var(--white);
  margin-bottom: var(--spacing-sm);
}

/* ===== TIMELINE ===== */
.timeline {
  position: relative;
  padding-left: var(--spacing-3xl);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--gray-200);
}

.timeline-item {
  position: relative;
  padding-bottom: var(--spacing-2xl);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--spacing-3xl) + 10px);
  top: 5px;
  width: 12px;
  height: 12px;
  background: var(--secondary);
  border-radius: var(--radius-full);
  border: 3px solid var(--white);
  box-shadow: var(--shadow-md);
}

.timeline-date {
  font-family: var(--font-primary);
  font-weight: 700;
  color: var(--primary);
  margin-bottom: var(--spacing-sm);
}

/* ===== PARTNERS SECTION ===== */
.partners-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-2xl);
}

.partner-logo {
  height: 60px;
  opacity: 0.6;
  filter: grayscale(100%);
  transition: all var(--transition-normal);
}

.partner-logo:hover {
  opacity: 1;
  filter: grayscale(0%);
}

/* ===== NEWS/MENTIONS SECTION ===== */
.news-filters {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-2xl);
  flex-wrap: wrap;
}

.filter-btn {
  padding: var(--spacing-sm) var(--spacing-lg);
  font-family: var(--font-primary);
  font-weight: 500;
  background: var(--gray-100);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--primary);
  color: var(--white);
}

.news-card {
  display: flex;
  flex-direction: column;
}

.news-card .card-content {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.news-category {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--primary);
  color: var(--white);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  border-radius: var(--radius-full);
  margin-bottom: var(--spacing-md);
}

/* ===== VIDEO GALLERY ===== */
.video-wrapper {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.video-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* ===== CONTACT SECTION ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
}

.contact-info {
  padding: var(--spacing-2xl);
  background: var(--primary);
  border-radius: var(--radius-lg);
  color: var(--white);
}

.contact-info h3 {
  color: var(--white);
  margin-bottom: var(--spacing-xl);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.contact-icon {
  width: 50px;
  height: 50px;
  min-width: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
  font-size: var(--text-xl);
}

.contact-item h5 {
  color: var(--white);
  margin-bottom: var(--spacing-xs);
}

.contact-item p {
  opacity: 0.9;
  margin: 0;
}

.contact-form {
  padding: var(--spacing-2xl);
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  font-family: var(--font-primary);
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
  color: var(--gray-700);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--spacing-md);
  font-family: var(--font-secondary);
  font-size: var(--text-base);
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast);
}

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

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

/* ===== MAP ===== */
.map-container {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  margin-top: var(--spacing-2xl);
}

.map-container iframe {
  width: 100%;
  height: 400px;
  border: none;
}

/* ===== FOOTER ===== */
.footer {
  background: var(--gray-900);
  color: var(--white);
  padding: var(--spacing-4xl) 0 var(--spacing-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-3xl);
}

.footer-brand img {
  height: 60px;
  margin-bottom: var(--spacing-lg);
}

.footer-brand p {
  color: var(--gray-400);
  margin-bottom: var(--spacing-lg);
}

.footer h5 {
  color: var(--white);
  margin-bottom: var(--spacing-lg);
  font-size: var(--text-lg);
}

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a {
  color: var(--gray-400);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--secondary);
}

.social-links {
  display: flex;
  gap: var(--spacing-md);
}

.social-link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  color: var(--white);
  transition: all var(--transition-fast);
}

.social-link:hover {
  background: var(--secondary);
  transform: translateY(-3px);
}

.footer-bottom {
  padding-top: var(--spacing-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  color: var(--gray-500);
  font-size: var(--text-sm);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 768px) {
  :root {
    --text-5xl: 2.5rem;
    --text-4xl: 2rem;
    --text-3xl: 1.5rem;
  }

  .navbar-menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    transform: translateX(-100%);
    transition: transform var(--transition-normal);
  }

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

  .navbar-toggle {
    display: flex;
  }

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

  .about-content {
    grid-template-columns: 1fr;
  }

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

  .hero-stats {
    gap: var(--spacing-xl);
  }

  .stat-number {
    font-size: var(--text-4xl);
  }

  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .social-links {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-md);
  }

  .section {
    padding: var(--spacing-2xl) 0;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .btn-lg {
    width: 100%;
  }
}

/* ===== ANIMATIONS ===== */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s ease-out;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.slide-in-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: all 0.6s ease-out;
}

.slide-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.slide-in-right {
  opacity: 0;
  transform: translateX(50px);
  transition: all 0.6s ease-out;
}

.slide-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* ===== PAGE HEADER ===== */
.page-header {
  padding: calc(var(--spacing-4xl) + 70px) 0 var(--spacing-3xl);
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: var(--white);
  text-align: center;
}

.page-header h1 {
  color: var(--white);
  margin-bottom: var(--spacing-md);
}

.page-header p {
  opacity: 0.9;
  font-size: var(--text-lg);
  max-width: 600px;
  margin: 0 auto;
}

.breadcrumb {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-lg);
  font-size: var(--text-sm);
}

.breadcrumb a {
  color: var(--secondary);
}

.breadcrumb span {
  opacity: 0.7;
}

/* ===== LOADING SPINNER ===== */
.loader {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: var(--spacing-2xl);
}

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--gray-200);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ===== ALERT MESSAGES ===== */
.alert {
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-lg);
}

.alert-success {
  background: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
}

.alert-error {
  background: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
}

.alert-info {
  background: #d1ecf1;
  color: #0c5460;
  border: 1px solid #bee5eb;
}