:root {
    --primary: #E31E24; /* Rojo oficial del logo */
    --primary-light: #FF4D4D;
    --secondary: #111111; /* Negro profundo del logo */
    --accent: #F1F5F9;
    --white: #FFFFFF;
    --text: #1E293B;
    --text-light: #64748B;
    --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.05);
    --shadow-strong: 0 20px 40px rgba(0, 0, 0, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
}

body {
    background-color: #F8FAFC;
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    scroll-behavior: smooth;
}

/* --- Scroll Animation --- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: var(--transition-smooth);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* --- Custom Scrollbar --- */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: #f1f1f1;
}
::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--secondary);
}

/* --- Navbar --- */
header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition-smooth);
    padding: 1rem 0;
}

header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(15px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    padding: 0.3rem 0;
}

header.scrolled .logo img {
    height: 50px; /* Un poco más pequeño al hacer scroll */
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

#header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    text-decoration: none;
    color: var(--secondary);
    font-weight: 700;
    font-size: 1.5rem;
}

.logo img {
    height: 60px; /* Incrementado de 45px */
    width: auto;
    transition: var(--transition-smooth);
}

.logo-scrolled {
    display: none !important;
}

header.scrolled .logo-transparent {
    display: none !important;
}

header.scrolled .logo-scrolled {
    display: block !important;
}

header.scrolled .logo {
    color: var(--primary);
}

nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

nav a {
    text-decoration: none;
    color: var(--white);
    font-weight: 700;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: var(--transition-smooth);
    position: relative;
}

nav a:hover::after {
    width: 100%;
}

nav a:hover {
    color: var(--primary);
    transform: translateY(-2px);
}

.nav-active {
    color: var(--primary) !important;
}

header.scrolled nav a {
    color: var(--secondary);
}

header.scrolled nav a:hover {
    color: var(--primary);
}

.cta-nav {
    background: var(--primary);
    color: var(--white) !important;
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    font-weight: 700;
    box-shadow: 0 4px 15px rgba(227, 30, 36, 0.3);
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 1px;
}

.cta-nav:hover {
    background: var(--secondary);
    box-shadow: var(--shadow-strong);
}

.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--white);
}

header.scrolled .mobile-menu-btn {
    color: var(--secondary);
}

/* --- Hero Section --- */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.4)),
                url('hero_propeller_bronze_1775315638960.png'); /* Note: in CSS assets/ prefix might be needed depending on location */
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    text-align: center;
    color: var(--white);
    padding-top: 80px;
}

/* Specific Hero backgrounds for subpages */
.hero-sub {
    height: 60vh;
    min-height: 400px;
}

.hero-nosotros { background-image: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.4)), url('hero_propeller_bronze_1775315638960.png'); }
.hero-helices { background-image: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.4)), url('drone_hull_scan_1775315656206.png'); }
.hero-servicios { background-image: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.4)), url('cfd_simulation_propeller_1775315674608.png'); }
.hero-media { background-image: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.4)), url('finished_propeller_shipping_1775316074395.png'); }
.hero-contacto { background-image: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.4)), url('copper_sechura_workshop_1775316094838.png'); }

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

.hero h1 {
    font-size: 4.5rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    font-weight: 800;
    letter-spacing: -1px;
    background: linear-gradient(to right, #FFF, #FF8080);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 4px 15px rgba(0,0,0,0.5);
}

.hero-sub h1 {
    font-size: 3.5rem;
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2.5rem;
    opacity: 1;
    text-shadow: 0 2px 10px rgba(0,0,0,0.8);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-btns {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.btn {
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1rem;
    transition: var(--transition-smooth);
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
    box-shadow: 0 4px 20px rgba(227, 30, 36, 0.4);
}

.btn-primary:hover {
    background: var(--secondary);
    color: var(--white);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.btn-secondary {
    border: 2px solid var(--white);
    color: var(--white);
}

.btn-secondary:hover {
    background: var(--white);
    color: var(--secondary);
    transform: scale(1.05);
}

/* --- Stats/Trust --- */
.stats {
    padding: 4rem 0;
    background: var(--white);
    margin-top: -60px;
    position: relative;
    z-index: 10;
    border-radius: 20px;
    box-shadow: var(--shadow-soft);
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    text-align: center;
}

.stat-item h3 {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.stat-item p {
    color: var(--text-light);
    font-weight: 600;
}

/* --- Benefits --- */
.section {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title h2 {
    font-size: 2.5rem;
    color: var(--secondary);
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--primary);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.benefit-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 20px;
    transition: var(--transition-smooth);
    text-align: center;
    box-shadow: var(--shadow-soft);
    border: 1px solid transparent;
    display: flex;
    flex-direction: column;
    justify-content: center;
    height: 100%;
}

.benefit-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
    box-shadow: var(--shadow-strong);
}

.benefit-card i {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
}

.benefit-card h3 {
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

/* --- Nosotros --- */
.about-flex {
    display: flex;
    align-items: center;
    gap: 4rem;
}

.about-image {
    flex: 1;
    position: relative;
}

.about-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: var(--shadow-soft);
}

.about-content {
    flex: 1;
}

.about-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--secondary);
}

.mission-vision {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

.mv-item {
    background: var(--white);
    padding: 1.5rem;
    border-left: 4px solid var(--primary);
    border-radius: 5px;
}

/* --- Process (Hélices) --- */
.process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.process-card {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    transition: var(--transition-smooth);
}

.process-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-strong);
}

.process-img {
    height: 200px;
    background-size: cover;
    background-position: center;
}

.process-info {
    padding: 2rem;
}

.process-step {
    display: inline-block;
    background: var(--primary);
    color: var(--white);
    padding: 0.2rem 0.8rem;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

/* --- Products/Services --- */
#servicios {
    background: radial-gradient(circle at top, #1a1a1a 0%, #050505 100%);
    position: relative;
    overflow: hidden;
}

#servicios::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: linear-gradient(rgba(227, 30, 36, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(227, 30, 36, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    position: relative;
    z-index: 2;
}

@media (min-width: 1200px) {
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.product-card {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    text-align: center;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-15px);
    border-color: rgba(227, 30, 36, 0.5);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), 0 0 20px rgba(227, 30, 36, 0.1);
}

.product-card-img {
    width: 100%;
    height: 200px;
    overflow: hidden;
    position: relative;
}

.product-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-smooth);
    filter: grayscale(0.5) contrast(1.2);
}

.product-card:hover .product-card-img img {
    filter: grayscale(0) contrast(1);
    transform: scale(1.1);
}

.product-card-content {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    flex-grow: 1;
}

.product-card h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--white);
}

.product-card p {
    color: #94A3B8;
    font-size: 0.9rem;
    line-height: 1.6;
}

.product-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--primary);
    box-shadow: 0 0 15px var(--primary);
}

/* --- FAQ Accordion --- */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 1rem;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow-soft);
}

.faq-question {
    background: var(--white);
    padding: 1.5rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    transition: var(--transition-smooth);
}

.faq-question:hover {
    background: #f1f1f1;
}

.faq-answer {
    background: var(--white);
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: var(--transition-smooth);
    padding: 0 1.5rem;
}

.faq-item.active .faq-answer {
    padding: 1.5rem;
    max-height: 300px;
    border-top: 1px solid #eee;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

/* --- Contact --- */
.contact-flex {
    display: flex;
    gap: 4rem;
}

.contact-info {
    flex: 1;
}

.contact-info-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.ci-icon {
    width: 60px;
    height: 60px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.contact-form {
    flex: 1.5;
    background: var(--white);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: var(--shadow-soft);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.form-control, 
input[type="text"], 
input[type="email"], 
select, 
textarea {
    width: 100%;
    padding: 1.2rem 1.5rem 1.2rem 3.5rem; /* Espacio para el ícono a la izquierda */
    background: #f8fafc;
    border: 2px solid #e2e8f0;
    border-radius: 18px;
    font-size: 1rem;
    font-weight: 500;
    color: #0f172a;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    outline: none;
    display: block;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.02);
}

.form-control:focus,
input:focus, 
select:focus, 
textarea:focus {
    border-color: var(--primary);
    background: white;
    box-shadow: 0 0 0 4px rgba(227, 30, 36, 0.1), 0 10px 20px rgba(0,0,0,0.05);
    transform: translateY(-1px);
}

select {
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2364748b'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1.5rem center;
    background-size: 1.2rem;
    padding-right: 3.5rem;
    appearance: none;
}

textarea {
    min-height: 150px;
    padding-top: 1.5rem;
}

/* --- Footer --- */
footer {
    background: #000000;
    padding: 6rem 0 3rem;
    color: var(--white);
    position: relative;
    overflow: hidden;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(to right, var(--primary), var(--secondary));
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 3rem;
    margin-bottom: 4rem;
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .footer-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.footer-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.footer-logo p {
    color: #94A3B8;
    line-height: 1.8;
    margin-top: 1rem;
    font-size: 0.95rem;
}

.footer-links h3 {
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
    position: relative;
    padding-bottom: 10px;
    font-weight: 700;
    color: var(--white);
    text-transform: uppercase;
}

.footer-links h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: #ffffff;
}

.footer-links ul {
    list-style: none;
    padding: 0;
}

.footer-links li {
    margin-bottom: 1.2rem;
}

.footer-links a {
    color: #ffffff;
    text-decoration: none;
    transition: var(--transition-smooth);
    display: inline-block;
}

.footer-links a:hover {
    color: var(--primary);
    transform: translateX(5px);
}

.footer-contact li {
    position: relative;
    padding-left: 2rem;
    padding-bottom: 0.8rem;
    margin-bottom: 0.8rem;
    color: #ffffff;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    line-height: 1.5;
}

.footer-contact li:last-child {
    border-bottom: none;
}

.footer-contact li i {
    position: absolute;
    left: 0;
    top: 5px;
    color: var(--primary);
}

.footer-bottom {
    margin-top: 5rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.5rem;
    font-size: 1rem;
    color: #64748B;
}

.footer-bottom b {
    color: #ffffff;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.social-links a {
    width: 38px;
    height: 38px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition-smooth);
    border: 1px solid rgba(255, 255, 255, 0.1);
    text-decoration: none;
}

.social-links a:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-5px);
    border-color: var(--primary);
}

/* --- WhatsApp Floating --- */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: #25D366;
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    z-index: 1000;
    transition: var(--transition-smooth);
    text-decoration: none;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(0,0,0,0.4);
}

/* --- Mobile Responsive --- */
@media (max-width: 968px) {
    .mobile-menu-btn {
        display: block;
    }

    nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 300px;
        height: 100vh;
        background: var(--white);
        padding: 5rem 2rem;
        transition: var(--transition-smooth);
        box-shadow: -10px 0 30px rgba(0,0,0,0.1);
    }

    nav.active {
        right: 0;
    }

    nav ul {
        flex-direction: column;
        gap: 2rem;
    }

    nav a {
        color: var(--secondary);
        font-size: 1.2rem;
    }

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

    .about-flex, .contact-flex {
        flex-direction: column;
    }

    .stats-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .mission-vision {
        grid-template-columns: 1fr;
    }
}

.footer-links ul li {
    padding-bottom: 0.8rem;
    margin-bottom: 0.8rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
}

.footer-links ul li:last-child {
    border-bottom: none;
}

.footer-links ul li a {
    display: flex;
    align-items: center;
    gap: 12px;
    color: #cbd5e1;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 0.95rem;
}

.footer-links ul li a::before {
    content: '';
    width: 10px;
    height: 10px;
    display: block;
    background-image: url('log.png');
    background-size: contain;
    background-repeat: no-repeat;
    filter: brightness(0) invert(1);
    opacity: 0.6;
    transition: all 0.3s ease;
}

.footer-links ul li a:hover::before {
    opacity: 1;
    transform: scale(1.2);
}

.footer-links ul li a:hover {
    color: white;
    padding-left: 5px;
}

/* --- Modern About Section (Inspired by Image 2) --- */
.about-modern {
    padding: 120px 0;
    background: #ffffff;
}

.about-modern .container {
    display: flex;
    align-items: center;
    gap: 60px;
}

.about-modern-text {
    flex: 1;
}

.about-modern-text .company-tag {
    display: inline-block;
    color: #94A3B8;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
}

.about-modern-text h2 {
    font-size: 3.5rem;
    line-height: 1.1;
    color: var(--secondary);
    margin-bottom: 2rem;
    font-weight: 800;
}

.about-modern-text p {
    font-size: 1.1rem;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 2.5rem;
    max-width: 500px;
}


.btn-modern-outline {
    display: inline-flex;
    align-items: center;
    gap: 15px;
    padding: 0.8rem 2rem;
    border: 1.5px solid #1e293b;
    border-radius: 50px;
    color: #1e293b;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-smooth);
}

.btn-modern-outline i {
    width: 30px;
    height: 30px;
    border: 1.5px solid #e2e8f0;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    transition: var(--transition-smooth);
}

.btn-modern-outline:hover {
    background: #1e293b;
    color: white;
    border-color: #1e293b;
}

.btn-modern-outline:hover i {
    border-color: rgba(255,255,255,0.3);
    transform: rotate(-45deg);
}


.about-modern-images {
    flex: 1.2;
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 20px;
    align-items: center;
}

.about-modern-images .img-tall {
    height: 500px;
    border-radius: 30px;
    overflow: hidden;
    box-shadow: var(--shadow-strong);
}

.about-modern-images .img-large {
    height: 400px;
    border-radius: 30px;
    overflow: hidden;
    box-shadow: var(--shadow-strong);
}

.about-modern-images img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-smooth);
}

.about-modern-images img:hover {
    transform: scale(1.05);
}

@media (max-width: 992px) {
    .about-modern .container {
        flex-direction: column;
        text-align: center;
    }
    
    .about-modern-text p {
        margin-left: auto;
        margin-right: auto;
    }
    
    .about-modern-images {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 576px) {
    .about-modern-text h2 {
        font-size: 2.5rem;
    }
    
    .about-modern-images {
        grid-template-columns: 1fr;
    }
    
    .about-modern-images .img-tall {
        height: 350px;
    }

}

/* --- Application Cards with Images --- */
.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.app-card {
    background: transparent;
    transition: var(--transition-smooth);
}

.app-card h3 {
    font-size: 1.5rem;
    color: var(--secondary);
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.app-card-img {
    width: 100%;
    height: 250px;
    border-radius: 15px;
    overflow: hidden;
    margin-bottom: 1.5rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.app-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-smooth);
}

.app-card:hover .app-card-img img {
    transform: scale(1.05);
}

.app-card p {
    font-size: 1rem;
    color: var(--text-light);
    line-height: 1.6;
}

/* --- Efectos Premium Adicionales --- */
.app-card-premium {
    cursor: pointer;
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.app-card-premium:hover {
    transform: translateY(-12px) scale(1.02);
}

.app-card-premium:hover img {
    transform: scale(1.1);
}

.engineering-visual img {
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.engineering-visual:hover img {
    transform: perspective(1000px) rotateY(-5deg) rotateX(2deg);
}

.engineering-visual:hover [style*="opacity: 0.03"] {
    transform: rotate(5deg) scale(1.05);
    opacity: 0.08 !important;
}