/* Hero */
.hero {
    padding: 5rem 2rem 3.5rem;
    text-align: center;
    background: radial-gradient(circle at 50% 120%, #f1f5f9 0%, #ffffff 60%);
}

.hero h1 {
    font-size: 2.6rem;
    font-weight: 800;
    color: var(--text-dark);
    letter-spacing: -0.02em;
    margin-bottom: 0.75rem;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 720px;
    margin: 0 auto 2.5rem;
}

/* Buscador e Input */
.search-container {
    max-width: 650px;
    margin: 0 auto 1.5rem;
    display: flex;
    border: 2px solid var(--primary);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.05);
}

.search-container input {
    flex: 1;
    padding: 0.9rem 1.2rem;
    border: none;
    outline: none;
    font-size: 1rem;
}

.search-container button {
    background-color: var(--primary);
    color: #ffffff;
    border: none;
    padding: 0 1.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.search-container button:hover { background-color: #1e293b; }

.search-results-box {
    max-width: 650px;
    margin: -1rem auto 2rem;
    background: white;
    border: 1px solid var(--border);
    border-radius: 0 0 8px 8px;
    text-align: left;
    box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1);
    z-index: 10;
    position: relative;
}

.search-item {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
    display: block;
    text-decoration: none;
    color: var(--text-dark);
}
.search-item:hover { background: var(--card-bg); }

.btn-emergency {
    display: inline-block;
    background-color: var(--accent);
    color: white;
    padding: 0.8rem 2rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 700;
    box-shadow: 0 4px 6px rgba(220, 38, 38, 0.2);
    transition: background 0.2s;
}
.btn-emergency:hover { background-color: var(--accent-hover); }

/* Alertas */
.alerts-section { max-width: 1200px; margin: 0 auto 3.5rem; padding: 0 2rem; }
.alerts-title { font-size: 0.85rem; font-weight: 700; text-transform: uppercase; color: var(--accent); margin-bottom: 1rem; display: flex; align-items: center; gap: 0.5rem; }
.pulse-dot { width: 8px; height: 8px; background-color: var(--accent); border-radius: 50%; display: inline-block; animation: pulse 1.5s infinite; }
.alerts-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.alert-card { border-left: 4px solid var(--accent); background-color: #fff5f5; padding: 1.2rem; border-radius: 0 8px 8px 0; font-size: 0.95rem; text-decoration: none; color: inherit; display: block; transition: all 0.15s ease; }
.alert-card:hover { background-color: #fee2e2; transform: translateX(2px); }
.alert-card strong { color: var(--text-dark); font-weight: 700; }

/* Rejilla Amenazas */
.main-content { max-width: 1200px; margin: 0 auto; padding: 0 2rem 5rem; }
.section-heading { font-size: 1.8rem; font-weight: 700; color: var(--text-dark); margin-bottom: 2.5rem; border-bottom: 2px solid var(--border); padding-bottom: 0.5rem; }
.grid-amenazas { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.card-amenaza { background-color: var(--card-bg); border: 1px solid var(--border); border-radius: 8px; padding: 1.75rem; display: flex; gap: 1.5rem; text-decoration: none; color: inherit; transition: all 0.2s ease; }
.card-amenaza:hover { transform: translateY(-3px); box-shadow: 0 12px 24px rgba(15, 23, 42, 0.06); border-color: #cbd5e1; }
.card-amenaza svg { width: 48px; height: 48px; flex-shrink: 0; }
.card-body h3 { font-size: 1.2rem; font-weight: 700; color: var(--text-dark); margin-bottom: 0.4rem; }
.card-body p { font-size: 0.92rem; color: var(--text-muted); }

/* Herramientas */
.tools-section { background-color: var(--card-bg); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 4.5rem 2rem; }
.tools-container { max-width: 1200px; margin: 0 auto; }
.grid-tools { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.5rem; }
.card-tool { background: #ffffff; border: 1px solid var(--border); border-radius: 8px; padding: 1.75rem; text-align: center; text-decoration: none; color: inherit; transition: all 0.2s; }
.card-tool:hover { border-color: var(--primary); box-shadow: 0 6px 16px rgba(0,0,0,0.04); }
.card-tool svg { width: 42px; height: 42px; margin-bottom: 1.25rem; }
.card-tool h4 { font-size: 1.05rem; font-weight: 700; color: var(--text-dark); }

@keyframes pulse {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(220, 38, 38, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(220, 38, 38, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(220, 38, 38, 0); }
}
/* ================================================
   RESPONSIVE
   ================================================ */

/* Tablet (≤ 1024px) */
@media (max-width: 1024px) {
    .hero { padding: 3.5rem 1.5rem 2.5rem; }
    .hero h1 { font-size: 2.1rem; }
    .hero p { font-size: 1.05rem; }
    .alerts-section, .main-content { padding-left: 1.5rem; padding-right: 1.5rem; }
    .tools-section { padding: 3.5rem 1.5rem; }
    .alerts-grid { grid-template-columns: repeat(2, 1fr); gap: 1.25rem; }
    .grid-amenazas { grid-template-columns: repeat(2, 1fr); gap: 1.25rem; }
}

/* Móvil (≤ 768px) */
@media (max-width: 768px) {
    .hero { padding: 2.5rem 1rem 2rem; }
    .hero h1 { font-size: 1.75rem; letter-spacing: -0.01em; }
    .hero p { font-size: 1rem; margin-bottom: 1.75rem; }

    .search-container {
        max-width: 100%;
        flex-direction: column;
        border-radius: 8px;
        border-width: 1px;
    }
    .search-container input {
        padding: 0.85rem 1rem;
        font-size: 16px; /* evita zoom en iOS */
        border-bottom: 1px solid var(--border);
    }
    .search-container button {
        padding: 0.75rem 1rem;
        width: 100%;
    }
    .search-results-box { max-width: 100%; margin: -0.5rem auto 1.5rem; }

    .btn-emergency { padding: 0.75rem 1.5rem; font-size: 0.95rem; }

    .alerts-section { margin-bottom: 2.5rem; padding: 0 1rem; }
    .alerts-grid { grid-template-columns: 1fr; gap: 0.75rem; }
    .alert-card { padding: 1rem; font-size: 0.9rem; }

    .main-content { padding: 0 1rem 3.5rem; }
    .section-heading { font-size: 1.4rem; margin-bottom: 1.75rem; }

    .grid-amenazas { grid-template-columns: 1fr; gap: 1rem; }
    .card-amenaza { padding: 1.25rem; gap: 1rem; }
    .card-amenaza svg { width: 40px; height: 40px; }
    .card-body h3 { font-size: 1.05rem; }
    .card-body p { font-size: 0.88rem; }

    .tools-section { padding: 3rem 1rem; }
    .grid-tools { grid-template-columns: repeat(2, 1fr); gap: 0.85rem; }
    .card-tool { padding: 1.25rem; }
    .card-tool svg { width: 36px; height: 36px; margin-bottom: 0.85rem; }
    .card-tool h4 { font-size: 0.95rem; }
}

/* Móvil pequeño (≤ 480px) */
@media (max-width: 480px) {
    .hero h1 { font-size: 1.5rem; }
    .hero p { font-size: 0.95rem; }
    .grid-tools { grid-template-columns: 1fr; }
    .card-amenaza { padding: 1rem; }
    .card-amenaza svg { width: 36px; height: 36px; }
}