/* Reset y variables */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #1e3a8a;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --secondary-color: #0f172a;
    --accent-color: #06b6d4;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-light: #94a3b8;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --card-shadow-hover: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --border-radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-secondary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Container principal */
.container {
    flex: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem 2rem;
    width: 100%;
}

/* Hero Section */
.hero {
    text-align: center;
    margin-left: calc(50% - 50vw);
    margin-right: calc(50% - 50vw);
    margin-top: -4rem;
    margin-bottom: 4rem;
    padding: 4rem 2rem;
    width: 100vw;
    max-width: 100vw;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 50%, var(--primary-color) 100%);
    background-size: 200% 200%;
    border-radius: 0;
    position: relative;
    overflow: hidden;
    animation: gradientShift 15s ease infinite;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px),
        radial-gradient(circle at 20% 50%, rgba(59, 130, 246, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(6, 182, 212, 0.3) 0%, transparent 50%);
    background-size: 50px 50px, 50px 50px, 100% 100%, 100% 100%;
    opacity: 0.6;
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 2px,
            rgba(255, 255, 255, 0.03) 2px,
            rgba(255, 255, 255, 0.03) 4px
        ),
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 2px,
            rgba(255, 255, 255, 0.03) 2px,
            rgba(255, 255, 255, 0.03) 4px
        );
    pointer-events: none;
}

@keyframes gradientShift {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
    position: relative;
    z-index: 1;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
    font-size: 1.5rem;
    color: rgba(255, 255, 255, 0.95);
    font-weight: 400;
    letter-spacing: 0.01em;
    position: relative;
    z-index: 1;
    text-shadow: 0 1px 5px rgba(0, 0, 0, 0.2);
}

/* Services Section */
.services {
    margin-bottom: 3rem;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

/* Cards */
.card {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
    transition: var(--transition);
    overflow: hidden;
    border: 1px solid rgba(226, 232, 240, 0.8);
    position: relative;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--card-shadow-hover);
    border-color: rgba(59, 130, 246, 0.3);
}

.card:hover::before {
    transform: scaleX(1);
}

.card-content {
    padding: 2rem;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.card-title-wrapper {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.card-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: var(--transition);
}

.card-icon svg {
    width: 100%;
    height: 100%;
    stroke-width: 2.5;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.card:hover .card-icon {
    transform: scale(1.1);
}

.card-title {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--secondary-color);
    letter-spacing: -0.01em;
    margin: 0;
}

.card-description {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.card-link {
    display: inline-flex;
    align-items: center;
    color: var(--primary-color);
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
    font-size: 0.95rem;
    margin-top: auto;
}

.card-link:hover {
    color: var(--primary-light);
    transform: translateX(4px);
}

.card-link::after {
    content: '→';
    margin-left: 0.5rem;
    transition: var(--transition);
}

.card-link:hover::after {
    transform: translateX(4px);
}

.card-link-disabled {
    display: inline-flex;
    align-items: center;
    color: var(--text-light);
    font-weight: 500;
    font-size: 0.95rem;
    margin-top: auto;
    font-style: italic;
}

/* Footer */
.footer {
    background: var(--secondary-color);
    color: var(--text-light);
    padding: 2rem 2rem;
    margin-top: auto;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-text {
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.footer-brand {
    font-weight: 600;
    color: var(--bg-primary);
    letter-spacing: 0.05em;
}

.footer-separator {
    color: var(--text-light);
    opacity: 0.5;
}

.footer-year {
    color: var(--text-light);
}

.footer-author {
    color: var(--text-light);
}

.footer-email {
    font-size: 0.9rem;
}

.footer-link {
    color: var(--accent-color);
    text-decoration: none;
    transition: var(--transition);
}

.footer-link:hover {
    color: var(--primary-light);
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 2rem 1.5rem 1.5rem;
    }

    .hero {
        margin-left: calc(50% - 50vw);
        margin-right: calc(50% - 50vw);
        margin-top: -2rem;
        margin-bottom: 3rem;
        padding: 3rem 1.5rem;
        width: 100vw;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.25rem;
    }

    .cards-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .card-content {
        padding: 1.5rem;
    }

    .footer {
        padding: 1.5rem 1rem;
    }

    .footer-text {
        font-size: 0.85rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .card-title {
        font-size: 1.5rem;
    }

    .card-description {
        font-size: 0.95rem;
    }
}

/* Animaciones sutiles */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-title,
.hero-subtitle {
    animation: fadeInUp 0.6s ease-out;
}

.hero-subtitle {
    animation-delay: 0.2s;
    animation-fill-mode: both;
}

.card {
    animation: fadeInUp 0.6s ease-out;
    animation-fill-mode: both;
}

.card:nth-child(1) {
    animation-delay: 0.1s;
}

.card:nth-child(2) {
    animation-delay: 0.2s;
}

.card:nth-child(3) {
    animation-delay: 0.3s;
}