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

:root {
  --warm-brown: #8B4513;
  --warm-orange: #E8731A;
  --soft-gold: #F5C542;
  --pale-cream: #FFF8F0;
  --deep-navy: #1a1a2e;
  --soft-blue: #3a7bd5;
  --cold-blue: #4a90d9;
  --ice-blue: #a8d0e6;
  --red-urgent: #e74c3c;
  --pink-soft: #ffd1d1;
  --green: #27ae60;
  --white: #ffffff;
  --gray-100: #f8f9fa;
  --gray-200: #e9ecef;
  --gray-600: #6c757d;
  --gray-800: #343a40;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.15);
  --radius: 16px;
  --radius-sm: 10px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Poppins', -apple-system, sans-serif;
  color: var(--gray-800);
  background: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ===== NAVBAR ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: transparent;
  transition: var(--transition);
  padding: 16px 0;
}

.navbar.scrolled {
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
  padding: 10px 0;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--white);
  transition: var(--transition);
}

.navbar.scrolled .nav-logo { color: var(--warm-brown); }
.nav-logo .paw { font-size: 1.5rem; }

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  color: rgba(255,255,255,0.9);
  font-weight: 500;
  font-size: 0.9rem;
  transition: var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--warm-orange);
  transition: var(--transition);
}

.nav-links a:hover::after { width: 100%; }

.navbar.scrolled .nav-links a {
  color: var(--gray-800);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  width: 26px;
  height: 2.5px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

.navbar.scrolled .nav-toggle span { background: var(--gray-800); }

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background:
    linear-gradient(135deg, #1a1a2e 0%, #16213e 40%, #0f3460 100%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 80%, rgba(232,115,26,0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(74,144,217,0.1) 0%, transparent 50%);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><text y="50" font-size="80" opacity="0.03">🐕</text></svg>') repeat;
  background-size: 120px;
  animation: floatBg 20s linear infinite;
}

@keyframes floatBg {
  from { background-position: 0 0; }
  to { background-position: 120px 120px; }
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  padding: 120px 24px 80px;
}

.hero-tag {
  display: inline-block;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(8px);
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 0.9rem;
  color: var(--soft-gold);
  margin-bottom: 24px;
  border: 1px solid rgba(255,255,255,0.1);
}

.hero-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  color: var(--white);
  line-height: 1.15;
  margin-bottom: 24px;
}

.hero-title span {
  display: block;
  background: linear-gradient(135deg, var(--warm-orange), var(--soft-gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: rgba(255,255,255,0.75);
  max-width: 600px;
  margin: 0 auto 40px;
  font-weight: 300;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 60px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, var(--warm-orange), #d4621a);
  color: var(--white);
  box-shadow: 0 4px 20px rgba(232,115,26,0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 30px rgba(232,115,26,0.5);
}

.btn-secondary {
  background: rgba(255,255,255,0.1);
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,0.3);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.2);
  transform: translateY(-2px);
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}

.stat {
  text-align: center;
  color: var(--white);
}

.stat-number {
  display: block;
  font-size: 2.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--warm-orange), var(--soft-gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  display: block;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  margin-top: 4px;
}

.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}

.scroll-arrow {
  display: block;
  width: 24px;
  height: 24px;
  border-right: 2px solid rgba(255,255,255,0.5);
  border-bottom: 2px solid rgba(255,255,255,0.5);
  transform: rotate(45deg);
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: rotate(45deg) translateY(0); }
  40% { transform: rotate(45deg) translateY(8px); }
  60% { transform: rotate(45deg) translateY(4px); }
}

/* ===== SECTIONS COMMON ===== */
.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-tag {
  display: inline-block;
  background: var(--pink-soft);
  color: var(--red-urgent);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.section-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--gray-800);
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--gray-600);
  max-width: 600px;
  margin: 0 auto;
  font-weight: 300;
}

/* ===== NECESIDADES ===== */
.necesidades {
  padding: 100px 0;
  background: var(--pale-cream);
}

.necesidades-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
}

.nec-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 40px 32px;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
  border: 2px solid transparent;
}

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

.nec-card-casitas { border-top: 4px solid var(--warm-orange); }
.nec-card-ropita { border-top: 4px solid var(--cold-blue); }
.nec-card-alimento { border-top: 4px solid var(--green); }

.nec-icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

.nec-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.nec-card-casitas .nec-badge { background: #fff3e0; color: var(--warm-orange); }
.nec-card-ropita .nec-badge { background: #e3f2fd; color: var(--cold-blue); }
.nec-card-alimento .nec-badge { background: #e8f5e9; color: var(--green); }

.nec-card h3 {
  font-size: 1.4rem;
  margin-bottom: 12px;
  color: var(--gray-800);
}

.nec-card > p {
  color: var(--gray-600);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 20px;
}

.nec-list {
  margin-bottom: 24px;
}

.nec-list li {
  padding: 6px 0;
  padding-left: 24px;
  position: relative;
  font-size: 0.9rem;
  color: var(--gray-800);
}

.nec-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--green);
  font-weight: 700;
}

.nec-cost {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px;
  background: var(--gray-100);
  border-radius: var(--radius-sm);
}

.cost-label {
  font-size: 0.85rem;
  color: var(--gray-600);
}

.cost-value {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--warm-brown);
}

/* ===== PERRITOS ===== */
.perritos {
  padding: 100px 0;
  background: var(--white);
}

.perritos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 28px;
}

.perrito-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  cursor: pointer;
  border: 2px solid var(--gray-200);
}

.perrito-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--warm-orange);
}

.perrito-img {
  height: 260px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 5rem;
  background: linear-gradient(135deg, var(--pale-cream) 0%, #fde8cd 100%);
  position: relative;
  overflow: hidden;
}

.perrito-img .perrito-emoji {
  filter: grayscale(0);
  transition: var(--transition);
}

.perrito-card:hover .perrito-emoji {
  transform: scale(1.1) rotate(-5deg);
}

.perrito-status {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 4px 10px;
  border-radius: 50px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.status-urgente { background: var(--red-urgent); color: var(--white); }
.status-necesitado { background: var(--warm-orange); color: var(--white); }
.status-estable { background: var(--soft-gold); color: var(--gray-800); }

.perrito-info {
  padding: 20px;
}

.perrito-name {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.perrito-location {
  font-size: 0.85rem;
  color: var(--gray-600);
  margin-bottom: 8px;
}

.perrito-location::before {
  content: '📍 ';
}

.perrito-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.perrito-tag {
  padding: 3px 10px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 500;
  background: var(--gray-100);
  color: var(--gray-600);
}

.perrito-tag.tag-casita { background: #fff3e0; color: var(--warm-orange); }
.perrito-tag.tag-ropita { background: #e3f2fd; color: var(--cold-blue); }
.perrito-tag.tag-alimento { background: #e8f5e9; color: var(--green); }

/* ===== HISTORIAS ===== */
.historias {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--deep-navy), #16213e);
  color: var(--white);
}

.historias .section-title { color: var(--white); }
.historias .section-subtitle { color: rgba(255,255,255,0.6); }
.historias .section-tag { background: rgba(255,255,255,0.1); color: var(--soft-gold); }

.historias-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
}

.historia-card {
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  padding: 32px;
  transition: var(--transition);
}

.historia-card:hover {
  background: rgba(255,255,255,0.08);
  transform: translateY(-4px);
}

.historia-quote {
  font-size: 3rem;
  font-family: 'Playfair Display', serif;
  color: var(--warm-orange);
  line-height: 1;
  margin-bottom: 8px;
}

.historia-card > p {
  font-size: 1rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.8);
  font-style: italic;
  margin-bottom: 20px;
}

.historia-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.author-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.historia-author strong { display: block; font-size: 0.95rem; }
.historia-author span { font-size: 0.8rem; color: rgba(255,255,255,0.5); }

/* ===== CÓMO AYUDAR ===== */
.como-ayudar {
  padding: 100px 0;
  background: var(--gray-100);
}

.ayuda-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
  margin-bottom: 48px;
}

.ayuda-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  position: relative;
  transition: var(--transition);
}

.ayuda-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.ayuda-step {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--warm-orange);
  color: var(--white);
  font-weight: 700;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ayuda-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.ayuda-card h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
}

.ayuda-card p {
  font-size: 0.9rem;
  color: var(--gray-600);
  margin-bottom: 16px;
  line-height: 1.7;
}

.ayuda-link {
  color: var(--warm-orange);
  font-weight: 600;
  font-size: 0.9rem;
  transition: var(--transition);
}

.ayuda-link:hover { color: var(--warm-brown); }

.urgente-banner {
  display: flex;
  align-items: center;
  gap: 24px;
  background: linear-gradient(135deg, #e74c3c, #c0392b);
  color: var(--white);
  padding: 28px 32px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
}

.urgente-icon {
  font-size: 2.5rem;
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.15); }
}

.urgente-content h3 {
  font-size: 1.3rem;
  margin-bottom: 8px;
}

.urgente-content p {
  font-size: 0.95rem;
  opacity: 0.9;
  line-height: 1.7;
}

/* ===== CONTACTO ===== */
.contacto {
  padding: 100px 0;
  background: var(--white);
}

.contacto-wrapper {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: start;
}

.contacto-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group.full-width { grid-column: 1 / -1; }

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-800);
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 12px 16px;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-sm);
  font-family: 'Poppins', sans-serif;
  font-size: 0.95rem;
  transition: var(--transition);
  background: var(--gray-100);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--warm-orange);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(232,115,26,0.1);
}

.btn-submit {
  grid-column: 1 / -1;
  justify-self: start;
  padding: 16px 40px;
  font-size: 1.05rem;
}

.contacto-info {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.info-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px;
  background: var(--gray-100);
  border-radius: var(--radius-sm);
}

.info-icon {
  font-size: 1.8rem;
  flex-shrink: 0;
}

.info-item strong { display: block; font-size: 0.9rem; margin-bottom: 2px; }
.info-item p { font-size: 0.85rem; color: var(--gray-600); line-height: 1.6; }

.qr-placeholder {
  text-align: center;
  padding: 24px;
  background: var(--gray-100);
  border-radius: var(--radius-sm);
}

.qr-box {
  width: 120px;
  height: 120px;
  margin: 0 auto 12px;
  background: var(--white);
  border: 2px dashed var(--gray-200);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--gray-600);
  font-size: 1.2rem;
}

.qr-placeholder p { font-size: 0.85rem; color: var(--gray-600); }

/* ===== MODAL ===== */
.modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal.active { display: flex; }

.modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
}

.modal-content {
  position: relative;
  background: var(--white);
  border-radius: var(--radius);
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  animation: modalIn 0.3s ease;
}

@keyframes modalIn {
  from { opacity: 0; transform: translateY(30px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(0,0,0,0.1);
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  z-index: 1;
  transition: var(--transition);
}

.modal-close:hover { background: rgba(0,0,0,0.2); }

.modal-img {
  height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 7rem;
  background: linear-gradient(135deg, var(--pale-cream), #fde8cd);
  border-radius: var(--radius) var(--radius) 0 0;
}

.modal-info {
  padding: 32px;
}

.modal-info h2 {
  font-size: 1.6rem;
  margin-bottom: 8px;
}

.modal-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.modal-info > p {
  color: var(--gray-600);
  line-height: 1.8;
  margin-bottom: 20px;
}

.modal-details {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.modal-detail {
  padding: 8px 16px;
  background: var(--gray-100);
  border-radius: 50px;
  font-size: 0.85rem;
}

/* ===== FOOTER ===== */
.footer {
  background: var(--deep-navy);
  color: var(--white);
  padding: 64px 0 0;
}

.footer-content {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand h3 {
  font-size: 1.4rem;
  margin-bottom: 12px;
}

.footer-brand p {
  color: rgba(255,255,255,0.6);
  font-size: 0.95rem;
  line-height: 1.7;
}

.footer-links h4 {
  font-size: 1rem;
  margin-bottom: 16px;
  color: var(--soft-gold);
}

.footer-links li { margin-bottom: 10px; }

.footer-links a {
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
  transition: var(--transition);
}

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

.footer-bottom {
  padding: 24px 0;
  text-align: center;
  color: rgba(255,255,255,0.4);
  font-size: 0.85rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }

  .nav-links.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.97);
    backdrop-filter: blur(12px);
    padding: 24px;
    gap: 16px;
    box-shadow: var(--shadow-md);
  }

  .nav-links.active a { color: var(--gray-800); }

  .contacto-wrapper {
    grid-template-columns: 1fr;
  }

  .contacto-form {
    grid-template-columns: 1fr;
  }

  .urgente-banner {
    flex-direction: column;
    text-align: center;
  }

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

@media (max-width: 600px) {
  .hero-stats { gap: 24px; }
  .stat-number { font-size: 2rem; }
  .necesidades-grid { grid-template-columns: 1fr; }
  .perritos-grid { grid-template-columns: 1fr 1fr; }
  .ayuda-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 400px) {
  .perritos-grid { grid-template-columns: 1fr; }
  .ayuda-grid { grid-template-columns: 1fr; }
}

/* ===== ANIMATIONS (scroll-triggered) ===== */
.animate-in {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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