:root {
    --primary: #2563eb;
    --primary-light: #dbeafe;
    --dark: #0f172a;
    --light: #ffffff;
    --bg-alt: #f8fafc;
    --gray: #64748b;
    --accent: #38bdf8;
    --border: #e2e8f0;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--light);
    color: var(--dark);
    line-height: 1.6;
}

/* Layout */
.container { padding: 80px 10%; }
.bg-alt { background-color: var(--bg-alt); }

/* Navegación */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 10%;
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    z-index: 100;
}

.logo { font-weight: 700; font-size: 1.5rem; letter-spacing: -1px; }
.logo span { color: var(--primary); }

nav ul { display: flex; list-style: none; }
nav ul li { margin-left: 2rem; }
nav ul li a { 
    text-decoration: none; 
    color: var(--dark); 
    font-weight: 500;
    transition: color 0.3s;
}
nav ul li a:hover { color: var(--primary); }

/* Hero Section */
.hero {
    text-align: center;
    padding: 120px 10%;
    background: radial-gradient(circle at top right, #eff6ff, #ffffff);
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero h1 span {
    background: linear-gradient(to right, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.2rem;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto 2.5rem;
}

.btn-primary, .btn-secondary, .btn-linkedin {
    display: inline-block;
    padding: 0.9rem 2.2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
}

.btn-primary { background-color: var(--dark); color: white; margin-right: 1rem; }
.btn-secondary { border: 2px solid var(--dark); color: var(--dark); }
.btn-primary:hover { transform: translateY(-3px); background-color: var(--primary); }

/* About Section */
.about-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 4rem; align-items: center; }
.stat-card {
    background: var(--bg-alt);
    padding: 2rem;
    border-radius: 20px;
    text-align: center;
    border: 1px solid var(--border);
}
.stat-card h4 { font-size: 1.8rem; color: var(--primary); margin-bottom: 0.5rem; }

/* Section Titles */
.section-title { text-align: center; font-size: 2.2rem; margin-bottom: 3rem; font-weight: 700; }
.section-title span { color: var(--primary); }

/* Proyectos */
.grid-projects { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2rem; }
.card {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}
.card:hover { transform: translateY(-10px); box-shadow: 0 20px 40px rgba(0,0,0,0.05); border-color: var(--primary-light); }

/* Experiencia */
.experience-container {
    border-left: 2px solid var(--primary);
    padding-left: 30px;
    margin: 0 auto;
    max-width: 800px;
}

.exp-card {
    position: relative;
    margin-bottom: 40px;
    padding: 20px;
    transition: all 0.3s;
}

.exp-card::before {
    content: "";
    position: absolute;
    left: -41px; top: 25px;
    width: 18px; height: 18px;
    background: var(--primary);
    border-radius: 50%;
    border: 4px solid var(--light);
}

.exp-card.highlight {
    background: linear-gradient(to right, var(--light), var(--bg-alt));
    border-radius: 12px;
    border: 1px solid var(--primary-light);
    transform: scale(1.02);
}

.company { color: var(--primary); font-weight: 700; }

.badges { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.badges span {
    background: var(--primary-light);
    color: var(--primary);
    font-size: 0.75rem;
    padding: 4px 12px;
    border-radius: 15px;
    font-weight: 600;
}

/* Certificaciones Carrusel */
.carousel-wrapper { position: relative; display: flex; align-items: center; gap: 10px; }
.cert-carousel {
    display: flex;
    overflow-x: auto;
    scroll-behavior: smooth;
    gap: 20px;
    padding: 20px 5px;
    scrollbar-width: none;
}
.cert-carousel::-webkit-scrollbar { display: none; }

.cert-card {
    min-width: 280px;
    background: var(--light);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    flex-shrink: 0;
}

.carousel-btn {
    background: var(--dark);
    color: white;
    border: none;
    width: 45px; height: 45px;
    border-radius: 50%;
    cursor: pointer;
    transition: 0.3s;
}
.carousel-btn:hover { background: var(--primary); }

/* Skills */
.skills-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 1rem; }
.skill-tag {
    padding: 0.8rem 1.5rem;
    background: white;
    border: 1px solid var(--border);
    border-radius: 12px;
    transition: all 0.3s;
}
.skill-tag:hover { background: var(--dark); color: white; transform: translateY(-5px); }

/* Footer & Contacto */
.bg-dark-section { background-color: var(--dark); color: white; text-align: center; }
.btn-linkedin { background-color: #0077b5; color: white; display: flex; align-items: center; gap: 8px; }

@media (max-width: 768px) {
    nav ul { display: none; }
    .about-grid { grid-template-columns: 1fr; }
    .container { padding: 60px 5%; }
    .carousel-btn { display: none; }
}

/* Unificamos estilos de botones para consistencia */
.btn-primary, .btn-secondary, .btn-linkedin {
    display: inline-flex; /* Cambiado a inline-flex para centrar icono y texto */
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 0.8rem 1.8rem; /* Tamaño estándar balanceado */
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem; /* Tamaño de fuente estándar */
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

/* Color específico de LinkedIn */
.btn-linkedin {
    background-color: #0077b5;
    color: white;
}

.btn-linkedin:hover {
    background-color: #005a8a;
    transform: translateY(-3px);
}

/* Ajuste del icono para que no deforme el botón */
.btn-linkedin img {
    width: 18px; /* Tamaño estándar de icono */
    height: 18px;
    filter: brightness(0) invert(1); /* Opcional: hace que el logo sea blanco */
}