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

:root {
    /* Paleta Azul */
    --azul-oscuro: #0a1f3d;
    --azul-medio: #1e4d8b;
    --azul-principal: #2980b9;
    --azul-claro: #7fb3d5;
    --azul-muy-claro: #d4e6f1;
    
    /* Paleta Naranja */
    --naranja-oscuro: #d35400;
    --naranja-medio: #e67e22;
    --naranja-principal: #f39c12;
    --naranja-claro: #f9bf3b;
    --naranja-muy-claro: #fcd599;
    
    /* Colores neutros */
    --blanco: #ffffff;
    --gris-claro: #f5f5f5;
    --gris: #7f8c8d;
    --negro: #2c3e50;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--negro);
}

/* Navbar Styles */
.navbar {
    background: linear-gradient(135deg, var(--azul-oscuro) 0%, var(--azul-medio) 100%);
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--blanco);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo span {
    color: var(--naranja-principal);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    color: var(--blanco);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 5px;
}

.nav-menu a:hover {
    color: var(--naranja-principal);
    background: rgba(255,255,255,0.1);
}

.nav-menu .btn-login {
    background: linear-gradient(135deg, var(--naranja-medio) 0%, var(--naranja-principal) 100%);
    padding: 0.6rem 1.5rem;
    border-radius: 25px;
    font-weight: bold;
}

.nav-menu .btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--blanco);
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    margin-top: 70px;
    background: linear-gradient(135deg, var(--azul-oscuro) 0%, var(--azul-medio) 50%, var(--azul-principal) 100%);
    color: var(--blanco);
    padding: 4rem 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></svg>');
    background-size: 100px 100px;
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.hero h1 span {
    color: var(--naranja-principal);
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: 30px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
}

.btn-primary {
    background: linear-gradient(135deg, var(--naranja-medio) 0%, var(--naranja-principal) 100%);
    color: var(--blanco);
}

.btn-secondary {
    background: var(--blanco);
    color: var(--azul-medio);
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.2);
}

/* Search Section */
.search-section {
    background: var(--gris-claro);
    padding: 3rem 2rem;
}

.search-container {
    max-width: 900px;
    margin: 0 auto;
}

.search-box {
    background: var(--blanco);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.search-box h2 {
    color: var(--azul-oscuro);
    margin-bottom: 1.5rem;
    text-align: center;
}

.search-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.search-form input,
.search-form select {
    padding: 0.8rem;
    border: 2px solid var(--azul-muy-claro);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.search-form input:focus,
.search-form select:focus {
    outline: none;
    border-color: var(--azul-principal);
}

.search-form button {
    grid-column: 1 / -1;
    padding: 1rem;
    background: linear-gradient(135deg, var(--azul-medio) 0%, var(--azul-principal) 100%);
    color: var(--blanco);
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
}

.search-form button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

/* Categories Section */
.categories {
    padding: 4rem 2rem;
    background: var(--blanco);
}

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

.section-title {
    text-align: center;
    color: var(--azul-oscuro);
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

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

.category-card {
    background: linear-gradient(135deg, var(--azul-muy-claro) 0%, var(--blanco) 100%);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    border: 2px solid transparent;
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.15);
    border-color: var(--naranja-principal);
}

.category-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.category-card h3 {
    color: var(--azul-medio);
    margin-bottom: 0.5rem;
}

.category-card p {
    color: var(--gris);
    font-size: 0.9rem;
}

/* Features Section */
.features {
    background: linear-gradient(135deg, var(--naranja-muy-claro) 0%, var(--naranja-claro) 100%);
    padding: 4rem 2rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-item {
    text-align: center;
    padding: 2rem;
}

.feature-number {
    background: var(--azul-medio);
    color: var(--blanco);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    margin: 0 auto 1rem;
}

.feature-item h3 {
    color: var(--azul-oscuro);
    margin-bottom: 1rem;
}

/* About Section */
.about {
    padding: 4rem 2rem;
    background: var(--blanco);
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.about p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--gris);
    margin-bottom: 1.5rem;
}

/* Footer */
footer {
    background: var(--azul-oscuro);
    color: var(--blanco);
    padding: 3rem 2rem 1rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: var(--naranja-principal);
    margin-bottom: 1rem;
}

.footer-section p,
.footer-section a {
    color: var(--azul-muy-claro);
    text-decoration: none;
    line-height: 1.8;
}

.footer-section a:hover {
    color: var(--naranja-principal);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--azul-medio);
    color: var(--azul-claro);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--azul-oscuro);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        padding: 2rem 0;
        gap: 1rem;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        margin: 1rem 0;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 300px;
    }

    .section-title {
        font-size: 2rem;
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero,
.category-card,
.feature-item {
    animation: fadeIn 0.6s ease-out;
}




/* =========================================
    ESTILOS ADICIONALES PARA LA PÁGINA LOGIN
    (Utilizan las variables de tu estilos.css)
    ========================================= */
.login-section {
    margin-top: 70px;
    min-height: calc(100vh - 250px);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--azul-muy-claro) 0%, var(--blanco) 100%);
    padding: 4rem 2rem;
}

.login-card {
    background: var(--blanco);
    padding: 3rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    width: 100%;
    max-width: 450px;
    animation: fadeIn 0.6s ease-out;
}

.login-card h2 {
    color: var(--azul-oscuro);
    text-align: center;
    margin-bottom: 0.5rem;
    font-size: 2rem;
}

.login-card .subtitle {
    text-align: center;
    color: var(--gris);
    margin-bottom: 2rem;
    font-size: 1rem;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    color: var(--azul-medio);
    font-weight: 600;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.login-form input[type="email"],
.login-form input[type="password"] {
    padding: 0.9rem 1rem;
    border: 2px solid var(--azul-muy-claro);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    width: 100%;
}

.login-form input:focus {
    outline: none;
    border-color: var(--azul-principal);
    box-shadow: 0 0 0 3px rgba(41, 128, 185, 0.1);
}

.error-message {
    color: #e74c3c;
    font-size: 0.85rem;
    display: none;
    margin-top: 0.3rem;
}

.login-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    margin-top: -0.5rem;
}

.login-options label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--gris);
    cursor: pointer;
}

.login-options a {
    color: var(--naranja-medio);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.login-options a:hover {
    color: var(--naranja-oscuro);
    text-decoration: underline;
}

.btn-login-submit {
    width: 100%;
    margin-top: 1rem;
    padding: 1rem;
    font-size: 1.1rem;
}

.login-divider {
    text-align: center;
    margin: 2rem 0 1.5rem;
    position: relative;
    color: var(--gris);
    font-size: 0.9rem;
}

.login-divider::before,
.login-divider::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 40%;
    height: 1px;
    background: var(--azul-muy-claro);
}

.login-divider::before { left: 0; }
.login-divider::after { right: 0; }

.social-login {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.btn-social {
    flex: 1;
    padding: 0.9rem;
    border: 2px solid var(--azul-muy-claro);
    border-radius: 8px;
    background: var(--blanco);
    color: var(--azul-medio);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 0.95rem;
}

.btn-social:hover {
    border-color: var(--azul-principal);
    background: var(--azul-muy-claro);
    transform: translateY(-2px);
}

.register-link {
    text-align: center;
    color: var(--gris);
    font-size: 0.95rem;
}

.register-link a {
    color: var(--naranja-medio);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.register-link a:hover {
    color: var(--naranja-oscuro);
    text-decoration: underline;
}

/* Mensajes de alerta */
.alert {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    display: none;
    animation: fadeIn 0.3s ease-out;
}

.alert-error {
    background: #fee;
    color: #c33;
    border: 1px solid #fcc;
}

.alert-success {
    background: #efe;
    color: #3c3;
    border: 1px solid #cfc;
}

@media (max-width: 768px) {
    .login-card {
        padding: 2rem 1.5rem;
    }
    .login-options {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
    .social-login {
        flex-direction: column;
    }
}