/* --- VARIABLES --- */
:root {
  --bg-main: #0f172a;
  --bg-header: #020617;
  --accent: #10B981;
  --text: #f8fafc;
}

.light-mode {
  background-color: #f1f5f9;
  color: #020617;
}

.light-mode .header-main {
  background-color: #e2e8f0;
}

.light-mode .skill-card {
  background-color: white;
}

/* --- BASE --- */
body {
  font-family: system-ui;
  color: var(--text);
  margin: 0;
  background-color: var(--bg-main);
}

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

/* --- HEADER --- */
.header-main {
  background-color: var(--bg-header);
  padding: 20px;
  box-shadow: 0px 4px 15px var(--accent);
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
}

.title-main {
  font-size: 2rem;
}

.title-second-word {
  color: var(--accent);
}

.nav-main {
  display: flex;
  gap: 20px;
}

.menu-toggle {
  display: none;
  font-size: 28px;
  background: none;
  border: none;
  color: white;
  cursor: pointer;
}

/* --- LINKS --- */
a {
  color: #cbd5e1;
  text-decoration: none;
}

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

/* --- HERO --- */
.hero {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 80px;
  max-width: 1200px;
  margin: auto;
  min-height: 80vh;
  padding: 20px;
}

.hero-text {
  flex: 1;
}

.hero-image {
  flex: 1;
}

.slogan {
  font-size: 3rem;
}

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

.description {
  font-size: 1.2rem;
  opacity: 0.8;
  margin: 20px 0;
}

/* --- BOTONES --- */
.buttons {
  display: flex;
  gap: 15px;
}

.btn, .btn-2 {
  padding: 10px 20px;
  border-radius: 5px;
  font-weight: bold;
  cursor: pointer;
}

.btn {
  background: var(--accent);
  color: white;
  border: none;
}

.btn-2 {
  background: white;
  color: var(--accent);
  border: none;
}

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

.btn-2:hover {
  background: var(--accent);
  color: white;
}

/* --- SECCION EXTRA --- */
.extra-section {
  text-align: center;
  padding: 50px 20px;
}

.skills {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin: 20px 0;
  flex-wrap: wrap;
}

.skill-card {
  background: #020617;
  padding: 20px 30px;
  border-radius: 12px;
  transition: 0.3s;
  cursor: pointer;
  border: 1px solid rgba(32, 178, 170, 0.2);
}

.skill-card:hover {
  transform: translateY(-10px);
  box-shadow: 0px 10px 20px rgba(32, 178, 170, 0.4);
}

/* animación scroll */
.hidden {
  opacity: 0;
  transform: translateY(40px);
  transition: 0.6s;
}

.show {
  opacity: 1;
  transform: translateY(0);
}

/* --- EXTRA JS --- */
.extra {
  margin-top: 20px;
  display: none;
}

/* --- FOOTER --- */
footer {
  text-align: center;
  padding: 30px;
  background-color: var(--bg-header);
}

/* 📱 MOBILE */
@media (max-width: 768px) {

  .menu-toggle {
    display: block;
  }

  .nav-main {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 70px;
    right: 0;
    width: 100%;
    background-color: var(--bg-header);
    padding: 20px;
    text-align: center;
  }

  .nav-main.active {
    display: flex;
  }

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

  .buttons {
    flex-direction: column;
  }
}

/* 📲 TABLET */
@media (min-width: 769px) and (max-width: 1024px) {
  .hero {
    flex-direction: column;
  }
}