@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;700&display=swap');

:root {
  --color-primario: #1e293b;
  --color-secundario: #38bdf8;
  --color-fondo: #f8fafc;
  --color-texto: #22223b;
  --color-blanco: #fff;
  --sombra: 0 4px 24px rgba(30,41,59,0.08);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Montserrat', sans-serif;
  background: var(--color-fondo);
  color: var(--color-texto);
  line-height: 1.6;
  min-height: 100vh;
}

.container {
  width: 90%;
  max-width: 1100px;
  margin: 0 auto;
}

.header {
  background: var(--color-primario);
  color: var(--color-blanco);
  padding: 1.5rem 0;
  box-shadow: var(--sombra);
  position: sticky;
  top: 0;
  z-index: 10;
  animation: slideDown 1s cubic-bezier(.77,0,.18,1) 0.2s both;
  border-bottom: 4px solid var(--color-secundario);
}

@keyframes slideDown {
  from { transform: translateY(-100%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.logo {
  font-size: 2.2rem;
  font-weight: 700;
  letter-spacing: 2px;
}

nav ul {
  display: flex;
  gap: 2rem;
  list-style: none;
}

nav a {
  color: var(--color-blanco);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}

nav a:hover {
  color: var(--color-secundario);
}

.hero {
  background: linear-gradient(120deg, #0ea5e9 0%, #1e293b 100%), url('https://images.unsplash.com/photo-1461749280684-dccba630e2f6?auto=format&fit=crop&w=1200&q=80') center/cover no-repeat;
  color: var(--color-blanco);
  padding: 7rem 0 6rem 0;
  text-align: center;
  animation: fadeIn 1.2s cubic-bezier(.77,0,.18,1) 0.4s both;
  position: relative;
  box-shadow: 0 8px 32px rgba(30,41,59,0.18);
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(30,41,59,0.55);
  z-index: 0;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero h2 {
  font-size: 2.8rem;
  font-weight: 800;
  margin-bottom: 1.2rem;
  color: #fff;
  text-shadow: 0 2px 8px #38bdf866;
}

.hero p {
  font-size: 1.4rem;
  margin-bottom: 2rem;
  color: #fff;
  text-shadow: 0 2px 8px #38bdf866;
}

.btn {
  background: var(--color-secundario);
  color: #fff;
  padding: 1.2rem 2.8rem;
  border: none;
  border-radius: 2rem;
  font-size: 1.2rem;
  font-weight: 700;
  margin-top: 1.5rem;
  cursor: pointer;
  box-shadow: 0 0 32px 8px #38bdf8cc, 0 8px 32px #38bdf822;
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
  text-shadow: 0 2px 8px #0004;
}

.btn:hover {
  background: #0ea5e9;
  transform: translateY(-4px) scale(1.09);
  box-shadow: 0 0 48px 12px #38bdf8cc, 0 8px 32px #38bdf822;
}

section {
  position: relative;
}

section:not(.hero)::before {
  content: '';
  display: block;
  width: 80px;
  height: 6px;
  background: linear-gradient(90deg, var(--color-secundario), var(--color-primario));
  border-radius: 3px;
  margin: 0 auto 2.5rem auto;
  opacity: 0.18;
}

.sobre-mi, .servicios, .proyectos, .contacto {
  padding: 4rem 0 3rem 0;
  animation: fadeInUp 1.2s cubic-bezier(.77,0,.18,1) both;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}

h2 {
  font-size: 2.2rem;
  margin-bottom: 1.5rem;
  color: var(--color-primario);
  font-weight: 800;
  letter-spacing: 1px;
  text-align: center;
}

.servicios-lista {
  display: flex;
  gap: 2.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

.servicio-card {
  background: linear-gradient(120deg, #f0f9ff 60%, #bae6fd 100%);
  border-radius: 1.5rem;
  box-shadow: 0 8px 32px #38bdf855, var(--sombra);
  padding: 2.2rem 1.7rem;
  min-width: 220px;
  max-width: 340px;
  flex: 1 1 220px;
  transition: transform 0.2s, box-shadow 0.2s;
  animation: popIn 0.8s cubic-bezier(.77,0,.18,1) both;
  border: 2px solid #38bdf8;
}

.servicio-card:hover {
  transform: translateY(-12px) scale(1.05) rotate(-1deg);
  box-shadow: 0 16px 48px #38bdf8aa, 0 8px 32px rgba(56,189,248,0.12);
}

@keyframes popIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.proyectos-grupo {
  display: flex;
  gap: 3rem;
  flex-wrap: wrap;
  justify-content: center;
}

.proyectos-col {
  flex: 1 1 320px;
}

.proyecto-card {
  background: linear-gradient(120deg, #f1f5f9 60%, #e0f2fe 100%);
  border-radius: 1.2rem;
  box-shadow: 0 8px 32px #1e293b22, var(--sombra);
  padding: 1.7rem 1.3rem;
  margin-bottom: 1.7rem;
  border-left: 6px solid var(--color-secundario);
  border-right: 6px solid #bae6fd;
  transition: box-shadow 0.2s, transform 0.2s;
  opacity: 0;
  transform: translateY(40px) scale(0.97);
}

.proyecto-card.visible {
  opacity: 1;
  transform: translateY(0) scale(1.03);
  transition: opacity 0.7s, transform 0.7s cubic-bezier(.77,0,.18,1);
}

.proyecto-card:hover {
  box-shadow: 0 16px 48px #38bdf8aa, 0 8px 32px rgba(30,41,59,0.13);
  transform: scale(1.06) rotate(1deg);
}

.proyecto-card h4 {
  color: var(--color-primario);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.contacto form {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  max-width: 500px;
  margin: 0 auto;
  background: #f1f5f9cc;
  border-radius: 1.2rem;
  box-shadow: 0 4px 24px #38bdf822, var(--sombra);
  padding: 2rem 1.5rem;
}

input, textarea {
  padding: 1.1rem;
  border-radius: 0.7rem;
  border: 2px solid #bae6fd;
  font-size: 1.05rem;
  font-family: inherit;
  resize: none;
  background: #fff;
  box-shadow: 0 2px 8px #bae6fd33;
}

input:focus, textarea:focus {
  outline: 2px solid var(--color-secundario);
  border-color: var(--color-secundario);
  background: #e0f2fe;
}

.footer {
  background: var(--color-primario);
  color: var(--color-blanco);
  text-align: center;
  padding: 1.2rem 0;
  margin-top: 2rem;
  font-size: 1rem;
  letter-spacing: 1px;
  border-top: 4px solid var(--color-secundario);
}

@media (max-width: 900px) {
  .servicios-lista, .proyectos-grupo {
    flex-direction: column;
    gap: 1.5rem;
  }
  .hero h2 {
    font-size: 2rem;
  }
}

.contribuir {
  background: linear-gradient(120deg, #bae6fd 60%, #38bdf8 100%);
  text-align: center;
  padding: 3.5rem 0 3rem 0;
  margin-top: 2rem;
  border-radius: 1.5rem;
  box-shadow: 0 8px 32px #38bdf855, var(--sombra);
  position: relative;
}

.contribuir h2 {
  color: var(--color-primario);
  font-size: 2rem;
  margin-bottom: 1rem;
  font-weight: 800;
}

.contribuir p {
  color: #22223b;
  font-size: 1.15rem;
  margin-bottom: 2rem;
}

.btn-contribuir {
  background: #ffdd00;
  color: #22223b;
  font-weight: 800;
  font-size: 1.15rem;
  border: none;
  border-radius: 2rem;
  padding: 1.1rem 2.5rem;
  box-shadow: 0 0 32px 8px #ffdd0088, 0 8px 32px #38bdf822;
  transition: background 0.2s, color 0.2s, transform 0.2s, box-shadow 0.2s;
  text-shadow: none;
  display: inline-block;
}

.btn-contribuir:hover {
  background: #ffe066;
  color: #1e293b;
  transform: scale(1.08) rotate(-2deg);
  box-shadow: 0 0 48px 12px #ffdd00cc, 0 8px 32px #38bdf822;
}