@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;600;700;800&display=swap');

:root {
    /* Theme Colors (Light Default) */
    --clr-bg: #f4f6f8;
    --clr-bg-card: #ffffff;
    --clr-text-main: #1e293b;
    --clr-text-muted: #64748b;
    --clr-primary: #0779e4;      /* Acabado corporativo para dia */
    --clr-primary-hover: #055aab;
    --clr-header-bg: #ffffff;
    --clr-header-text: #1e293b;
    --clr-header-border: #0779e4;
    --clr-card-border: #e2e8f0;
    --clr-card-hover: #f1f5f9;
    --clr-footer-bg: #1e293b;
    --clr-footer-text: #f8fafc;
    --clr-section-bg: #e2e8f0;
    --clr-danger: #ef4444;
    
    /* Configs Específicas del Hero Light */
    --clr-hero-bg: transparent; 
    --clr-hero-text: #1e293b;

    /* Sombras y variables estructurales */
    --shadow-sm: 0 4px 10px rgba(0,0,0,0.05);
    --shadow-md: 0 10px 30px rgba(0,0,0,0.08);
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

[data-theme="dark"] {
    /* Theme Colors (DARK/NEON Promocion) */
    --clr-bg: #022b31;
    --clr-bg-card: rgba(2, 43, 49, 0.8);
    --clr-text-main: #ffffff;
    --clr-text-muted: #cbd5e1;
    --clr-primary: #00e5ff;      /* Cyan neon iconico */
    --clr-primary-hover: #33eaff;
    --clr-header-bg: #011619;
    --clr-header-text: #ffffff;
    --clr-header-border: #00e5ff;
    --clr-card-border: rgba(0, 229, 255, 0.3);
    --clr-card-hover: rgba(0, 229, 255, 0.1);
    --clr-footer-bg: #011619;
    --clr-footer-text: #cbd5e1;
    --clr-section-bg: #04424b;
    --clr-danger: #ff4d4d;
    
    /* Configs Específicas del Hero Dark */
    --clr-hero-bg: transparent; 
    --clr-hero-text: #ffffff;

    --shadow-sm: 0 0 15px rgba(0, 229, 255, 0.15), inset 0 0 10px rgba(0, 229, 255, 0.05);
    --shadow-md: 0 0 30px rgba(0, 229, 255, 0.2), inset 0 0 15px rgba(0, 229, 255, 0.1);
}

/* Background patterns Topográficos */
body {
    background-image: 
      radial-gradient(circle at 0% 0%, transparent 40%, rgba(7, 121, 228, 0.03) 41%, transparent 42%),
      radial-gradient(circle at 100% 100%, transparent 30%, rgba(7, 121, 228, 0.03) 31%, transparent 32%),
      radial-gradient(circle at 50% 50%, transparent 60%, rgba(7, 121, 228, 0.02) 61%, transparent 62%);
    background-size: 150px 150px;
}
body[data-theme="dark"] {
    background-image: 
      radial-gradient(circle at 0% 0%, transparent 40%, rgba(0, 229, 255, 0.03) 41%, transparent 42%),
      radial-gradient(circle at 100% 100%, transparent 30%, rgba(0, 229, 255, 0.03) 31%, transparent 32%),
      radial-gradient(circle at 50% 50%, transparent 60%, rgba(0, 229, 255, 0.02) 61%, transparent 62%);
    background-size: 150px 150px;
}

/* Estilos Generales */
body {
    font-family: 'Montserrat', sans-serif;
    background-color: var(--clr-bg);
    color: var(--clr-text-main);
    margin: 0;
    padding: 0;
    transition: background-color 0.3s ease, color 0.3s ease;
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-weight: 800;
    line-height: 1.2;
}

.container {
    width: 90%;
    max-width: 1100px;
    margin: auto;
    overflow: hidden;
    padding: 0 15px;
}

/* Theme Switcher */
.theme-switch-wrapper {
    display: flex;
    align-items: center;
    position: absolute;
    right: 20px;
    top: 25px;
}
.theme-btn {
    background: none;
    border: none;
    color: var(--clr-header-text);
    font-size: 1.5rem;
    cursor: pointer;
    transition: transform 0.3s ease;
    outline: none;
}
.theme-btn:hover {
    transform: scale(1.1);
    color: var(--clr-primary);
}

/* Header */
header {
    background: var(--clr-header-bg);
    color: var(--clr-header-text);
    padding: 20px 0;
    border-bottom: var(--clr-header-border) 3px solid;
    position: relative;
    box-shadow: var(--shadow-sm);
    transition: background-color 0.3s ease, border-color 0.3s ease;
    z-index: 10;
}
header a {
    color: var(--clr-header-text);
    text-decoration: none;
    font-size: 16px;
    font-weight: 600;
    transition: var(--transition);
}
header a:hover {
    color: var(--clr-primary);
}
header ul {
    margin: 0;
    padding: 0;
    list-style: none;
}
header li {
    display: inline-block;
    padding: 0 15px;
}
header #branding {
    float: left;
}
header #branding h1 {
    margin: 0;
    font-size: 1.8rem;
    font-weight: 800;
    display: flex;
    align-items: center;
}
header nav {
    float: right;
    margin-top: 10px;
    margin-right: 50px; /* espacio para el theme switcher */
}

/* Ajustes de estilo para el Hero de landing en el directorio */
.hero {
    position: relative;
    text-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}
[data-theme="dark"] .hero {
    text-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
}

/* Botones: Estilo Promo (Bordes redondeados al 100%, Padding grueso) */
.button, .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--clr-primary);
    color: #fff;
    border: 2px solid var(--clr-primary);
    padding: 14px 28px;
    cursor: pointer;
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 1.05rem;
    border-radius: 50px;
    transition: var(--transition);
    text-decoration: none;
    text-align: center;
    box-shadow: var(--shadow-sm);
    box-sizing: border-box;
}
.btn-sm {
    padding: 8px 20px;
    font-size: 0.95rem;
}
[data-theme="dark"] .button, [data-theme="dark"] .btn {
    color: var(--clr-bg);
    box-shadow: 0 0 15px rgba(0, 229, 255, 0.4);
}
.button:hover, .btn:hover {
    background: var(--clr-primary-hover);
    border-color: var(--clr-primary-hover);
    transform: translateY(-3px);
    color: #fff;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}
[data-theme="dark"] .button:hover, [data-theme="dark"] .btn:hover {
    background: var(--clr-primary-hover);
    color: #000;
    box-shadow: 0 0 25px rgba(0, 229, 255, 0.8);
}
.btn-secondary {
    background: transparent;
    color: var(--clr-primary);
}
.btn-secondary:hover {
    background: var(--clr-card-hover);
    color: var(--clr-primary-hover);
}
[data-theme="dark"] .btn-secondary {
    color: var(--clr-text-main);
    border-color: var(--clr-text-main);
}
[data-theme="dark"] .btn-secondary:hover {
    background: rgba(255,255,255,0.1);
    color: #fff;
}

/* Formularios adaptados al estilo promo */
.form-control {
    width: 100%;
    padding: 14px 20px;
    border: 2px solid var(--clr-card-border);
    border-radius: 50px;
    background: var(--clr-bg-card);
    color: var(--clr-text-main);
    font-family: inherit;
    font-size: 1rem;
    box-sizing: border-box;
    transition: var(--transition);
}
.form-control:focus {
    outline: none;
    border-color: var(--clr-primary);
}
[data-theme="dark"] .form-control {
    background-color: rgba(2, 43, 49, 0.8);
}
[data-theme="dark"] .form-control:focus {
    box-shadow: 0 0 15px rgba(0, 229, 255, 0.4);
}
.search-box {
    border-radius: 16px;
    padding: 30px;
    position: relative;
    overflow: hidden;
}
[data-theme="dark"] .search-box::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 229, 255, 0.1) 0%, transparent 60%);
    pointer-events: none;
}

/* Tarjetas Generales (Card moderna con Borde superior en light) */
.card-modern {
    background: var(--clr-bg-card);
    border: 1px solid var(--clr-card-border);
    border-radius: 12px;
    padding: 30px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
body:not([data-theme="dark"]) .card-modern {
    border-top: 4px solid var(--clr-primary);
}
.card-modern:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--clr-primary);
}

/* Footer */
footer {
    padding: 40px 20px 20px;
    margin-top: 40px;
    color: var(--clr-footer-text);
    background-color: var(--clr-footer-bg);
    text-align: center;
    border-top: 1px solid rgba(255,255,255,0.1);
}
footer a {
    color: var(--clr-primary);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}
footer a:hover {
    color: #fff;
}

/* Responsive */
@media (max-width: 768px) {
    header #branding {
        float: none;
        text-align: center;
        margin-bottom: 15px;
        justify-content: center;
    }
    header nav {
        float: none;
        text-align: center;
        margin-right: 0;
    }
    header li {
        padding: 10px;
    }
    .theme-switch-wrapper {
        top: 20px;
        right: 10px;
    }
    .hero h2 {
        font-size: 2rem;
    }
}