/* ============================================
   RESET Y VARIABLES
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

:root {
  --font-heading: 'Fraunces', Georgia, serif;
  --font-body: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;

  --color-bg: #F4F6F8;
  --color-surface: #ffffff;
  --color-bg-soft: #e2edf6;
  --color-accent: #2E6DA4;
  --color-accent-dark: #1d4d78;
  --color-text: #22323f;
  --color-text-soft: #57697a;
  --color-border: #dbe4ec;

  --hero-bg: #2E6DA4;
  --hero-text: #fbfdff;
  --hero-text-soft: #cfe2f3;
}

body.dark-mode {
  --color-bg: #0B1116;
  --color-surface: #141c24;
  --color-bg-soft: #1c2831;
  --color-accent: #4a90c2;
  --color-accent-dark: #7fb3de;
  --color-text: #e4edf5;
  --color-text-soft: #8fa3b3;
  --color-border: #24343f;

  --hero-bg: #14304A;
  --hero-text: #f2f8fc;
  --hero-text-soft: #b7cfe0;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  line-height: 1.6;
  transition: background-color 0.2s, color 0.2s;
}

h1, h2, h3, .logo {
  font-family: var(--font-heading);
}

h2 {
  font-size: 1.7rem;
  font-weight: 600;
  margin-bottom: 24px;
  text-align: center;
}

a {
  text-decoration: none;
  color: var(--color-accent);
}

a:hover {
  color: var(--color-accent-dark);
}

section {
  padding: 80px 20px;
  max-width: 1000px;
  margin: auto;
}

/* ============================================
   NAVBAR
   ============================================ */
nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 2rem;
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
}

.nav-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.logo {
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--color-text) !important;
}

.nav-header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

nav ul {
  display: flex;
  gap: 26px;
  list-style: none;
  align-items: center;
}

nav ul li a {
  color: var(--color-text);
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.2s;
  white-space: nowrap;
}

nav ul li a:hover {
  color: var(--color-accent);
}

.icon-btn, .icon-btn-text {
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: 6px 14px;
  cursor: pointer;
  font-size: 0.85rem;
  font-family: var(--font-body);
  color: var(--color-text);
}

.icon-btn:hover, .icon-btn-text:hover {
  background-color: var(--color-bg-soft);
  border-color: var(--color-accent);
}

.hamburger {
  display: none;
  font-size: 1.5rem;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text);
}

@media (min-width: 769px) {
  .nav-header { display: contents; }
  .logo { order: 1; }
  .nav-menu { order: 2; flex: 1; display: flex; justify-content: center; }
  .nav-header-right { order: 3; }
  .hamburger { display: none; }
}

/* ============================================
   HERO
   ============================================ */
#inicio {
  max-width: none;
  margin: 0;
  padding: 0;
  padding-top: 64px;
  text-align: center;
  background-color: var(--hero-bg);
  border-radius: 0 0 40px 40px;
}

.hero-inner {
  max-width: 1000px;
  margin: 0 auto;
  padding: 70px 20px 60px;
}

.badge-disponible {
  display: inline-block;
  background-color: rgba(255, 255, 255, 0.15);
  color: var(--hero-text-soft);
  font-size: 0.8rem;
  font-weight: 500;
  padding: 6px 16px;
  border-radius: 20px;
  margin-bottom: 20px;
}

#inicio h1 {
  font-size: 2.75rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--hero-text);
}

#inicio h2 {
  color: var(--hero-text-soft);
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 1.2rem;
  margin-bottom: 28px;
  text-align: center;
}

.hero-cta {
  margin-bottom: 18px;
}

.btn-primary {
  display: inline-block;
  background-color: #ffffff;
  color: var(--hero-bg) !important;
  padding: 12px 28px;
  border-radius: 24px;
  font-weight: 600;
  transition: opacity 0.2s;
}

.btn-primary:hover {
  opacity: 0.85;
  color: var(--hero-bg) !important;
}

.hero-links {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.hero-links a {
  color: var(--hero-text-soft);
  font-size: 0.9rem;
  font-weight: 500;
}

.hero-links a:hover {
  color: #ffffff;
}

/* ============================================
   SOBRE MÍ
   ============================================ */
#sobre-mi {
  text-align: center;
}

#sobre-mi h2 {
  color: var(--color-text);
}

.contenido-sobre-mi {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 40px;
  box-shadow: 0 4px 20px rgba(10, 30, 50, 0.08);
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  align-items: flex-start;
  gap: 40px;
  text-align: left;
}

.contenido-sobre-mi img {
  flex-shrink: 0;
  width: 250px;
  height: auto;
  object-fit: cover;
  border-radius: 15%;
  border: 2px solid var(--color-border);
}

/* ============================================
   EXPERIENCIA
   ============================================ */
#experiencias {
  text-align: center;
}

.experiencia-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 32px 40px;
  text-align: left;
}

.experiencia-card h3 {
  font-size: 1.3rem;
  margin-bottom: 4px;
}

.experiencia-fecha {
  color: var(--color-accent);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.experiencia-card p:not(.experiencia-fecha) {
  color: var(--color-text-soft);
}

/* ============================================
   TECNOLOGÍAS
   ============================================ */
#tecnologias {
  text-align: center;
}

#tecnologias ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  list-style: none;
  justify-content: center;
}

#tecnologias li {
  background-color: var(--color-bg-soft);
  padding: 0.6rem 1.1rem;
  border-radius: 20px;
  color: var(--color-accent-dark);
  font-weight: 600;
  font-size: 0.9rem;
}

/* ============================================
   PROYECTOS
   ============================================ */
#proyectos {
  text-align: center;
}

.proyectos-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  margin-top: 10px;
}

.proyecto {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  overflow: hidden;
  text-align: left;
  display: flex;
  flex-direction: column;
}

.proyecto-imagen {
  width: 100%;
  aspect-ratio: 16 / 9;
  background-color: var(--color-bg-soft);
  overflow: hidden;
}

.proyecto-imagen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.proyecto-contenido {
  padding: 22px 24px;
}

.proyecto-contenido h3 {
  font-size: 1.15rem;
  margin-bottom: 10px;
}

.proyecto-contenido p {
  color: var(--color-text-soft);
  font-size: 0.92rem;
  margin-bottom: 10px;
}

.proyecto-contenido a {
  display: inline-block;
  margin-top: 6px;
  font-weight: 600;
  font-size: 0.9rem;
}

/* ============================================
   CONTACTO
   ============================================ */
#contacto {
  text-align: center;
}

.contacto-contenedor {
  display: flex;
  gap: 50px;
  justify-content: center;
  align-items: flex-start;
  text-align: left;
}

.info-contacto {
  border-right: 1px solid var(--color-border);
  padding-right: 30px;
}

.info-contacto p {
  margin-bottom: 12px;
  color: var(--color-text-soft);
}

.formulario-contacto {
  flex: 1;
  max-width: 380px;
}

.formulario-contacto form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

input, textarea {
  padding: 11px 14px;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  font-family: inherit;
  background-color: var(--color-surface);
  color: var(--color-text);
}

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

.btn-primary-outline {
  background-color: var(--color-accent);
  color: #ffffff;
  border: none;
  padding: 12px 20px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background-color 0.2s;
}

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

/* ============================================
   RESPONSIVO
   ============================================ */
@media (max-width: 768px) {
  nav {
    flex-direction: column;
    align-items: flex-start;
    padding: 0.6rem 1.2rem;
    gap: 0.5rem;
  }

  .nav-header-right {
    position: absolute;
    top: 0.6rem;
    right: 1.2rem;
  }

  .hamburger {
    display: block;
  }

  .nav-menu {
    display: none;
    flex-direction: column;
    width: 100%;
    background-color: var(--color-surface);
    padding: 0.5rem 0 1rem;
  }

  .nav-menu.open {
    display: flex;
  }

  nav ul {
    flex-direction: column;
    width: 100%;
    gap: 4px;
  }

  nav ul li a {
    display: block;
    padding: 0.5rem 0;
  }

  section {
    padding: 50px 16px;
  }

  #inicio h1 {
    font-size: 2rem;
  }

  #inicio h2 {
    font-size: 1.1rem;
  }

  .contenido-sobre-mi {
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 28px;
  }

  .contenido-sobre-mi img {
    width: 70%;
    max-width: 220px;
  }

  .experiencia-card {
    padding: 24px;
  }

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

  .contacto-contenedor {
    flex-direction: column;
    gap: 30px;
  }

  .info-contacto {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
    padding-right: 0;
    padding-bottom: 20px;
    width: 100%;
  }

  .formulario-contacto {
    width: 100%;
    max-width: none;
  }
}

@media (max-width: 480px) {
  #inicio h1 {
    font-size: 1.7rem;
  }

  section {
    padding: 40px 14px;
  }
}