/* =========================
   GLOBAL
========================= */

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: #ffffff;
    color: #222;
    line-height: 1.6;
}

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

/* =========================
   HEADER
========================= */

header {
    position: sticky;
    top: 0;
    background: #ffffff;
    padding: 18px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #eaeaea;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    z-index: 1000;
    flex-wrap: wrap;
}

header strong {
    font-weight: 600;
    font-size: 1.1rem;
    letter-spacing: 0.5px;
}

nav {
    display: flex;
    flex-wrap: wrap;
}

nav a {
    margin-left: 20px;
    font-size: 0.95rem;
}

/* =========================
   MAIN
========================= */

main {
    min-height: 80vh;
    padding: 60px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

/* =========================
   FOOTER
========================= */

footer {
    background: #f8f9fa;
    text-align: center;
    padding: 40px 20px;
    font-size: 0.85rem;
    color: #666;
    border-top: 1px solid #eaeaea;
    margin-top: 60px;
}

/* =========================
   LINKS
========================= */

a {
    color: #8aa6a3;
    text-decoration: none;
    font-weight: 500;
    border-bottom: 1px solid transparent;
    transition: all 0.2s ease;
}

a:hover {
    border-bottom: 1px solid #8aa6a3;
}

/* =========================
   HERO
========================= */

.hero {
    padding: 100px 20px;
    text-align: center;
    background: linear-gradient(to bottom, #ffffff, #f6f8fa);
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 2.4rem;
    font-weight: 500;
    line-height: 1.3;
    margin-bottom: 25px;
}

.hero-subtitle {
    font-size: 1rem;
    color: #555;
    max-width: 700px;
    margin: 0 auto 40px auto;
}

/* =========================
   BOTONES
========================= */

.btn-primary,
.btn-secondary {
    display: inline-block;
    padding: 14px 28px;
    border-radius: 40px;
    transition: all 0.3s ease;
    text-align: center;
}

.btn-primary {
    background-color: #8aa6a3;
    color: white;
}

.btn-primary:hover {
    background-color: #6e8f8c;
    transform: translateY(-2px);
}

.btn-secondary {
    margin-left: 15px;
    border: 1px solid #8aa6a3;
    color: #8aa6a3;
}

.btn-secondary:hover {
    background-color: #8aa6a3;
    color: white;
}

/* =========================
   SERVICES
========================= */

.services {
    padding: 80px 20px;
    text-align: center;
}

.services h2 {
    font-size: 1.8rem;
    margin-bottom: 50px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 25px;
    max-width: 1100px;
    margin: 0 auto;
}

.service-card {
    background: white;
    padding: 35px;
    border-radius: 14px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.04);
    transition: all 0.3s ease;
}

.service-card:hover {
    transform: translateY(-6px);
}

/* =========================
   CONTACTO
========================= */

.contact-section {
    padding: 80px 20px;
    max-width: 900px;
    margin: 0 auto;
}

.contact-card {
    background: #ffffff;
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 12px 35px rgba(0,0,0,0.05);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 30px;
}

.contact-item i {
    color: #8aa6a3;
}

/* =========================
   SOBRE MÍ
========================= */

.about-hero {
    padding: 100px 20px 60px 20px;
    background: linear-gradient(to bottom, #ffffff, #f6f8fa);
    text-align: center;
}

.about-container {
    max-width: 900px;
    margin: 0 auto;
}

.about-hero h1 {
    font-size: 2.2rem;
}

.about-section {
    padding: 70px 20px;
}

.about-block {
    margin-bottom: 50px;
}

.about-block h2 {
    font-size: 1.4rem;
    border-left: 4px solid #8aa6a3;
    padding-left: 12px;
}

/* =========================
   RESPONSIVE (TABLET & DESKTOP)
========================= */

@media (min-width: 768px) {

    header {
        padding: 18px 60px;
    }

    main {
        padding: 80px 60px;
    }

    footer {
        padding: 40px 60px;
    }

    .hero {
        padding: 120px 20px;
    }

    .hero h1 {
        font-size: 2.8rem;
    }

    .services {
        padding: 100px 20px;
    }

    .contact-card {
        padding: 50px;
    }

    .about-hero h1 {
        font-size: 2.8rem;
    }

}