/* ===== Variables ===== */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --surface: #ffffff;
    --surface-alt: #f8fafc;
    --text: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1);
    --shadow-hover: 0 10px 15px -3px rgba(0,0,0,0.1);
    --radius: 12px;
    --transition: all 0.2s ease;
}

/* ===== Reset & Base ===== */
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: system-ui, -apple-system, sans-serif;
    background: var(--surface-alt);
    color: var(--text);
    line-height: 1.5;
}

/* ===== Navbar Compacta ===== */
.navbar {
    position: sticky; top: 0; z-index: 100;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
}
.nav-container {
    max-width: 1200px; margin: 0 auto;
    padding: 0.75rem 1rem;
    display: flex; align-items: center; justify-content: space-between;
}
.nav-brand {
    display: flex; align-items: center; gap: 0.5rem;
    font-weight: 600; color: var(--primary);
    text-decoration: none; font-size: 1.1rem;
}
.nav-brand i { transition: transform 0.2s; }
.nav-brand:hover i { transform: rotate(15deg); }

.nav-menu {
    display: flex; gap: 0.25rem; list-style: none;
}
.nav-link {
    padding: 0.5rem 0.85rem;
    border-radius: 8px;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition);
}
.nav-link:hover, .nav-link.active {
    color: var(--primary);
    background: rgba(37, 99, 235, 0.08);
}
.nav-toggle { display: none; background: none; border: none; font-size: 1.2rem; color: var(--text); cursor: pointer; }

/* ===== Hero Minimal ===== */
.hero {
    position: relative;
    padding: 2rem 1rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    text-align: center;
    overflow: hidden;
}
.hero-content { position: relative; z-index: 2; }
.hero-title {
    font-size: 1.75rem; font-weight: 700;
    margin-bottom: 0.25rem;
    animation: fadeInDown 0.4s ease;
}
.hero-subtitle {
    font-size: 0.95rem; opacity: 0.9;
    animation: fadeInUp 0.4s ease 0.1s both;
}
.hero-overlay {
    position: absolute; inset: 0;
    background: radial-gradient(circle at 30% 20%, rgba(255,255,255,0.15) 0%, transparent 50%);
    pointer-events: none;
}

/* ===== Grid de Servicios Compacto ===== */
.servicios { padding: 1.5rem 1rem; }
.container { max-width: 1200px; margin: 0 auto; }
.servicios-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 0.85rem;
}

/* ===== Tarjetas con efectos sutiles ===== */
.servicio-card {
    display: flex; flex-direction: column; gap: 0.75rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem;
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.servicio-card::before {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(135deg, rgba(37,99,235,0.03), transparent);
    opacity: 0; transition: var(--transition);
}
.servicio-card:hover, .servicio-card:focus {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary);
}
.servicio-card:hover::before, .servicio-card:focus::before { opacity: 1; }
.servicio-card:focus { outline: 2px solid var(--primary); outline-offset: 2px; }

.servicio-icon {
    width: 40px; height: 40px;
    display: flex; align-items: center; justify-content: center;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
    border-radius: 10px;
    font-size: 1.1rem;
    transition: var(--transition);
}
.servicio-card:hover .servicio-icon {
    background: var(--primary);
    color: white;
    transform: scale(1.05);
}

.servicio-info h3 {
    font-size: 1rem; font-weight: 600;
    margin-bottom: 0.25rem;
}
.servicio-info p {
    font-size: 0.85rem; color: var(--text-muted);
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.btn-mini {
    display: inline-flex; align-items: center; gap: 0.35rem;
    font-size: 0.8rem; font-weight: 500;
    color: var(--primary);
    transition: var(--transition);
}
.servicio-card:hover .btn-mini {
    gap: 0.5rem; /* efecto de desplazamiento sutil */
}
.btn-mini i { transition: transform 0.2s; }
.servicio-card:hover .btn-mini i { transform: translateX(2px); }

/* ===== Footer minimal ===== */
.footer {
    text-align: center; padding: 1rem;
    font-size: 0.8rem; color: var(--text-muted);
    border-top: 1px solid var(--border);
    background: var(--surface);
}

/* ===== Animaciones ===== */
@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===== Responsive ===== */
@media (max-width: 640px) {
    .nav-menu {
        position: absolute; top: 100%; left: 0; right: 0;
        background: var(--surface);
        flex-direction: column; padding: 0.5rem;
        border-bottom: 1px solid var(--border);
        display: none;
    }
    .nav-menu.active { display: flex; }
    .nav-toggle { display: block; }
    .hero-title { font-size: 1.5rem; }
    .servicios-grid { grid-template-columns: 1fr; }
}

/* ===== Accesibilidad: reduce movimiento ===== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}