/* GLOBAL */
body {
    font-family: 'Inter', sans-serif;
    scroll-behavior: smooth;
    padding-top: 70px; /* espacio para navbar fija */
}

:root {
    --primary: #0d6efd;
    --primary-dark: #0b5ed7;
    --accent: #00b4d8;
}

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

.bg-light {
    background-color: #f8f9fc !important;
}

/* NAVBAR */
.navbar {
    background-color: rgba(10, 25, 47, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}
.navbar-brand {
    font-size: 1.5rem;
}
.navbar-dark .navbar-nav .nav-link {
    color: rgba(255,255,255,0.85);
    transition: 0.3s;
}
.navbar-dark .navbar-nav .nav-link:hover {
    color: var(--accent);
}

/* HERO */
.hero {
    background: linear-gradient(135deg, #0a192f 0%, #112240 100%);
    color: white;
    position: relative;
}
.hero .min-vh-100 {
    min-height: calc(100vh - 70px);
}

.btn-primary {
    background-color: var(--primary);
    border: none;
    padding: 0.75rem 1.5rem;
    font-weight: 500;
    transition: 0.3s;
}
.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(13,110,253,0.3);
}
.btn-outline-light {
    border-width: 2px;
}
.btn-outline-light:hover {
    transform: translateY(-2px);
}

/* CARDS */
.card {
    transition: transform 0.2s, box-shadow 0.2s;
    border-radius: 1rem;
}
.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1) !important;
}
.card-body i {
    color: var(--primary);
}

/* SECCIONES */
section {
    scroll-margin-top: 70px;
}
h2 {
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}
h2:after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--accent);
    border-radius: 2px;
}
.text-center h2:after {
    left: 50%;
    transform: translateX(-50%);
}
/* Para títulos sin after en móvil? no es necesario */

/* FORMULARIOS */
.form-control, .form-select {
    border-radius: 0.5rem;
    border: 1px solid #dee2e6;
    padding: 0.75rem;
}
.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 0.2rem rgba(13,110,253,0.25);
}

/* FOOTER */
footer a {
    transition: 0.2s;
    text-decoration: none;
}
footer a:hover {
    color: var(--accent) !important;
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .hero .display-4 {
        font-size: 2.2rem;
    }
    .btn-lg {
        padding: 0.5rem 1rem;
        font-size: 1rem;
    }
    section {
        padding: 3rem 0;
    }
}