:root {
    --cotton: #EDEBDD;
    --cherry-red: #810100;
    --maroon: #630000;
    --noir-black: #181717;
    --light-gray: #f8f9fa;
    --white: #ffffff;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    --radius: 10px;
    --transition: all 0.3s ease;
}

/* Custom color classes */
.bg-cotton { background-color: var(--cotton); }
.bg-cherry-red { background-color: var(--cherry-red); }
.bg-maroon { background-color: var(--maroon); }
.bg-noir-black { background-color: var(--noir-black); }

.text-cotton { color: var(--cotton); }
.text-cherry-red { color: var(--cherry-red); }
.text-maroon { color: var(--maroon); }
.text-noir-black { color: var(--noir-black); }

.btn-cherry-red {
    background-color: var(--cherry-red);
    border-color: var(--cherry-red);
    color: white;
}

.btn-cherry-red:hover {
    background-color: var(--maroon);
    border-color: var(--maroon);
    color: white;
}

.btn-outline-cherry-red {
    border-color: var(--cherry-red);
    color: var(--cherry-red);
}

.btn-outline-cherry-red:hover {
    background-color: var(--cherry-red);
    border-color: var(--cherry-red);
    color: white;
}

/* General styles */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--noir-black);
    padding-top: 76px; /* For fixed navbar */
    transition: var(--transition);
}

/* Navigation */
.navbar-brand {
    font-size: 1.5rem;
}

.nav-link {
    font-weight: 500;
    transition: var(--transition);
}

.nav-link:hover, .nav-link.active {
    color: var(--cherry-red) !important;
}

/* Hero Section - Modo Claro */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--cotton) 0%, #e0dfd1 100%);
    transition: var(--transition);
}

.hero-section h1 {
    color: var(--cherry-red);
}

.hero-section p {
    color: var(--noir-black);
}

/* Pulse Animation */
.pulse-animation {
    position: relative;
    width: 200px;
    height: 200px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.pulse-circle {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 2px solid var(--cherry-red);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.pulse-animation i {
    font-size: 4rem;
    color: var(--cherry-red);
}

@keyframes pulse {
    0% {
        transform: scale(0.8);
        opacity: 1;
    }
    100% {
        transform: scale(1.2);
        opacity: 0;
    }
}

/* Feature Cards */
.feature-card {
    background-color: var(--cotton);
    border-radius: var(--radius);
    transition: var(--transition);
    height: 100%;
    border: 1px solid rgba(129, 1, 0, 0.1);
}

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

.feature-icon {
    width: 80px;
    height: 80px;
    background-color: var(--cherry-red);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.feature-icon i {
    font-size: 2rem;
    color: white;
}

/* Footer */
footer a {
    text-decoration: none;
    transition: var(--transition);
}

footer a:hover {
    color: var(--cotton) !important;
}

/* ===== MODO OSCURO ===== */
[data-bs-theme="dark"] {
    --bs-body-bg: var(--noir-black);
    --bs-body-color: var(--cotton);
}

[data-bs-theme="dark"] body {
    background-color: var(--noir-black);
    color: var(--cotton);
}

[data-bs-theme="dark"] .navbar {
    background-color: #2a2a2a !important;
    border-bottom: 1px solid #444;
}

[data-bs-theme="dark"] .nav-link {
    color: var(--cotton) !important;
}

[data-bs-theme="dark"] .nav-link:hover, 
[data-bs-theme="dark"] .nav-link.active {
    color: var(--cherry-red) !important;
}

/* Hero Section - Modo Oscuro */
[data-bs-theme="dark"] .hero-section {
    background: linear-gradient(135deg, #2a2a2a 0%, #1a1a1a 100%);
}

[data-bs-theme="dark"] .hero-section h1 {
    color: var(--cherry-red);
}

[data-bs-theme="dark"] .hero-section p {
    color: var(--cotton);
}

[data-bs-theme="dark"] .pulse-circle {
    border-color: var(--cherry-red);
}

[data-bs-theme="dark"] .pulse-animation i {
    color: var(--cherry-red);
}

/* Feature Cards - Modo Oscuro */
[data-bs-theme="dark"] .features-section {
    background-color: var(--noir-black) !important;
}

[data-bs-theme="dark"] .feature-card {
    background-color: #2a2a2a;
    border-color: #444;
    color: var(--cotton);
}

[data-bs-theme="dark"] .feature-card h4 {
    color: var(--cherry-red);
}

[data-bs-theme="dark"] .feature-card p {
    color: var(--cotton);
}

/* Cards generales - Modo Oscuro */
[data-bs-theme="dark"] .card {
    background-color: #2a2a2a;
    border-color: #444;
    color: var(--cotton);
}

[data-bs-theme="dark"] .card-title {
    color: var(--cherry-red);
}

/* Footer - Modo Oscuro */
[data-bs-theme="dark"] footer {
    background-color: #1a1a1a;
}

[data-bs-theme="dark"] footer h5 {
    color: var(--cherry-red);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .hero-section {
        text-align: center;
        padding: 2rem 0;
    }
    
    .display-4 {
        font-size: 2.5rem;
    }
    
    .pulse-animation {
        width: 150px;
        height: 150px;
        margin-top: 2rem;
    }
    
    .pulse-animation i {
        font-size: 3rem;
    }
}