/* Variables y Diseño general */
:root {
    --bg-color: #0b0f19;
    --card-bg: rgba(26, 31, 46, 0.6);
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    --primary-color: #10b981; /* Verde esmeralda (Dinero/Ahorro) */
    --primary-hover: #059669;
    --secondary-color: #3b82f6;
    --secondary-hover: #2563eb;
    --blur: blur(12px);
    --border-color: rgba(255, 255, 255, 0.05);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

/* Efecto de fondo dinámico */
.blob-bg {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100vw;
    height: 100vh;
    background: radial-gradient(circle at 30% 30%, rgba(16, 185, 129, 0.15) 0%, transparent 40%),
                radial-gradient(circle at 70% 70%, rgba(59, 130, 246, 0.1) 0%, transparent 40%);
    z-index: -1;
    pointer-events: none;
}

/* Navegación */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    background: rgba(11, 15, 25, 0.8);
    backdrop-filter: var(--blur);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    background: linear-gradient(to right, #10b981, #3b82f6);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    object-fit: contain;
}

.navbar nav {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.navbar a {
    color: var(--text-main);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 600;
    transition: color 0.2s;
}

.navbar a:hover {
    color: var(--primary-color);
}

.nav-btn {
    background: rgba(255, 255, 255, 0.05);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.nav-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white !important;
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 8rem 20px 6rem;
    max-width: 900px;
    margin: 0 auto;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

.highlight {
    color: var(--primary-color);
}

.subtitle {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto 3rem;
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
    max-width: 650px;
    margin: 3rem auto 0;
}

.btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    padding: 1rem 1.5rem;
    border-radius: 12px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 0.95rem;
    white-space: normal;
    text-align: center;
    color: white;
    border: none;
    cursor: pointer;
}

.btn svg {
    flex-shrink: 0;
}

@media (max-width: 600px) {
    .download-grid {
        grid-template-columns: 1fr;
        padding: 0 1rem;
    }
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background-color: var(--primary-color);
    box-shadow: 0 4px 14px 0 rgba(16, 185, 129, 0.39);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.23);
    transform: translateY(-2px);
}

.btn-app {
    background-color: var(--secondary-color);
    box-shadow: 0 4px 14px 0 rgba(59, 130, 246, 0.39);
}

.btn-app:hover {
    background-color: var(--secondary-hover);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.23);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--text-muted);
    color: var(--text-muted);
}

.btn-outline:hover {
    border-color: var(--text-main);
    color: var(--text-main);
    background-color: rgba(255, 255, 255, 0.05);
    transform: translateY(-2px);
}

/* Features Section */
.features {
    padding: 5rem 5%;
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 4rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 2.5rem 2rem;
    border-radius: 16px;
    backdrop-filter: var(--blur);
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.15);
}

.feature-card .icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Preview Section */
.preview {
    padding: 0 5% 6rem;
    max-width: 1000px;
    margin: 0 auto;
}

.app-mockup {
    background: rgba(0,0,0,0.4);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 10px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.app-mockup img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    object-fit: contain;
}

/* Contact Section */
.contact {
    padding: 2rem 5% 6rem;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.contact-card {
    background: linear-gradient(145deg, rgba(26, 31, 46, 0.8), rgba(16, 185, 129, 0.05));
    border: 1px solid var(--border-color);
    padding: 3rem 2rem;
    border-radius: 16px;
    backdrop-filter: var(--blur);
}

.contact-card p {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 2rem;
    line-height: 1.8;
}

/* Footer */
footer {
    text-align: center;
    padding: 4rem 2rem;
    background-color: #05080f;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content {
    max-width: 800px;
    margin: 0 auto;
}

.legal-notice {
    margin-top: 2rem;
    font-size: 0.85rem;
    color: #64748b;
    line-height: 1.6;
    text-align: center;
}

.legal-notice p {
    margin-bottom: 1rem;
}

/* Responsive */
@media (max-width: 768px) {
    .navbar nav {
        display: none;
    }
    
    .hero {
        padding: 5rem 20px 4rem;
    }

    .contact-card {
        padding: 2.5rem 1rem;
    }

    .contact-card a {
        word-break: break-word;
        font-size: 0.9rem;
    }
}

/* Ajuste de scroll para navbar fija */
#download, #features {
    scroll-margin-top: 100px;
}