/* ===========================================

1. RESET
   =========================================== */

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

/* ===========================================
2. VARIABLES (DARK PRO)
=========================================== */
:root{

--color-primary:#0f172a;
--color-primary-dark:#020617;
--color-primary-soft:#1e293b;
--color-primary-muted:#334155;

--color-accent:#3b82f6;
--color-accent-soft:#60a5fa;
--color-accent-dark:#2563eb;

--color-background:#e2e8f0;

--color-contrast:#111827;
--color-contrast-soft:#1f2937;
}

/* ===========================================
3. BASE (MOBILE FIRST)
=========================================== */
body {
font-family: Arial, Helvetica, sans-serif;
font-size: 1.5rem;
line-height: 1.6;
color: var(--color-background);
background-color: var(--color-primary);
}

/* ===========================================
4. TIPOGRAFÍA
=========================================== */
h1, h2, h3, h4 {
font-weight: bold;
line-height: 1.2;
margin-bottom: 16px;
color: var(--color-accent);
}

h1 { font-size: 1.75rem; } 
h2 { font-size: 1.5rem; margin-top: 2.5rem; }  
h3 { font-size: 1.20rem; margin-top: 1.5rem; } 
h4 { font-size: 1rem; margin-top: 1rem; }      

p {
margin-bottom: 16px;
}

strong {
color: var(--color-accent-soft);
}

p{
  font-size: 1rem;
}

li {
  font-size: 1.2rem;
}

span {
  font-size: 1.2rem;
}
/* ===========================================
5. LINKS
=========================================== */
a {
color: var(--color-accent);
text-decoration: none;
transition: 0.3s;
}

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

/* ===========================================
6. HEADER
=========================================== */
.header {
background-color: var(--color-primary-dark);
padding: 8px 0;
border-bottom: 1px solid var(--color-primary-muted);
position: fixed;
top: 0;
width: 100%;
z-index: 1000;

}

.header__container {
display: flex;
flex-direction: column;
align-items: center;
max-width: 1200px;
margin: auto;
padding: 0 20px;

}

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

.header__tagline {
color: var(--color-accent-soft);
font-size: 14px;
}

/* ===========================================
7. NAV
=========================================== */
.nav__list {
display: flex;
flex-wrap: wrap;
justify-content: center;
}

.nav__item {
margin: 8px;
}

.nav__link {
color: var(--color-background);
padding: 6px 10px;
}

.nav__link:hover {
color: var(--color-accent);
}

/* ===========================================
8. MAIN
=========================================== */
.main {
max-width: 1200px;
margin: auto;
padding: 20px;
}

/* ===========================================
9. HERO
=========================================== */
.hero {
text-align: center;
padding: 50px 20px;
background: linear-gradient(var(--color-primary), var(--color-accent-soft));
}

.hero__title {
font-size: 36px;
}

.hero__subtitle {
font-size: 20px;
color: var(--color-accent-soft);
}

.hero__img {
width: 120px;
height: 120px;
border-radius: 50%;
margin: 20px 0;
border: 3px solid var(--color-accent);
transition: 0.4s;
}

.hero__img:hover {
transform: scale(2.1);
}

.hero__description {
max-width: 500px;
margin: auto;
}

.stat {
display: inline-block;
margin: 10px;
}

.stat__number {
font-size: 1 rem;
color: var(--color-contrast)
}

/* ===========================================
10. BUTTONS
=========================================== */
.button {
display: inline-block;
padding: 10px 20px;
border-radius: 8px;
margin: 5px;
transition: 0.3s;
}

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

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

.button--secondary {
background: var(--color-primary-muted);
color: white;
}

/* ===========================================
11. SECTIONS
=========================================== */
.about,
.skills,
.contact {
padding: 40px 0;
}

.projects {
padding: 10px 5px;
background-color: var(--color-primary-dark);
}

/* ===========================================
12. CARDS
=========================================== */
.project,
.values__item,
.learning {
background: var(--color-contrast);
padding: 20px;
margin-bottom: 20px;
border-radius: 12px;
box-shadow: 0 10px 25px rgba(0,0,0,0.3);
transition: 0.3s;
}

.project:hover {
transform: translateY(-9px);
}

/* ===========================================
13. SKILLS
=========================================== */
.skill__bar {
background: var(--color-contrast-soft);
height: 20px;
border-radius: 10px;
overflow: hidden;
}

.skill__progress {
background: var(--color-accent);
height: 100%;
}

.skill__progress--html {
  width: 75%;
}

.skill__progress--css {
  width: 60%;
}

.skill__progress--js {
  width: 20%;
}


/* ===========================================
14. CONTACT
=========================================== */
.contact {
text-align: center;
width: 100%;
}

.contact__container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.contact__method {
margin: 15px;
}

/* ===========================================
15. FOOTER
=========================================== */
.footer {
text-align: center;
padding: 30px;
background: var(--color-primary-dark);
border-top: 1px solid var(--color-primary-muted);
}

/* ===========================================
16. RESPONSIVE (TABLET + DESKTOP)
=========================================== */
@media(min-width:768px){

.header__container{
flex-direction: row;
justify-content: space-between;
}

.hero__title{
font-size: 48px;
}

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

}

@media(min-width:1024px){

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

.contact__container {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }

  .contact__methods {
    grid-column: span 2; /* ocupa toda la fila */
    display: flex;
    justify-content: center;
    gap: 40px;
  }

 button {
    max-width: 300px;
    justify-self: center;
  } 

}