/* =========================================================
   VARIABLES DE COLOR Y ESTILOS BASE
========================================================= */
:root {
    --color-primary: #1a365d;
    --color-secondary: #2c5282;
    --color-accent: #d69e2e;
    --color-light: #f8f9fa;
    --color-dark: #2d3748;
    --color-gray: #718096;
    --color-white: #ffffff;
    --shadow-light: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 5px 15px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 10px 25px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
    --navbar-height: 120px;
}

/* =========================================================
   RESETEO Y ESTILOS BASE
========================================================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--color-light);
    color: var(--color-dark);
    line-height: 1.6;
    padding-top: var(--navbar-height);
}

/* =========================================================
   NAVBAR CON ANIMACIONES
========================================================= */
.navbar {
    background-color: var(--color-white) !important;
    box-shadow: var(--shadow-light);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition);
    padding: 1.5rem 0;
    border-bottom: 2px solid rgba(0, 0, 0, 0.08); /* <--- línea sutil */
}
.navbar {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}



.navbar.scrolled {
    padding: 0.75rem 0;
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95) !important;
}

/* LOGO ANIMADO */
.logo-hummatec {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    color: var(--color-primary);
    text-decoration: none;
    transition: var(--transition);
    transform-origin: left center;
}

.navbar:not(.scrolled) .logo-hummatec {
    transform: scale(1.1);
}

.navbar.scrolled .logo-hummatec {
    transform: scale(0.9);
}

.logo-edicion,
.logo-subtitulo,
.logo-lema {
    color: var(--color-primary);
    transition: var(--transition);
}

.logo-edicion {
    font-size: 0.7rem;
    font-weight: 600;
    margin-bottom: 2px;
}

.logo-titulo {
    font-size: 1.4rem;
    font-weight: bold;
    color: var(--color-primary);
    transition: var(--transition);
}

.navbar.scrolled .logo-titulo {
    font-size: 1.2rem;
}

.logo-subtitulo {
    font-size: 0.65rem;
    font-weight: 300;
}

.logo-lema {
    font-size: 0.55rem;
    font-style: italic;
    opacity: 0.8;
    max-width: 180px;
}

.navbar.scrolled .logo-edicion,
.navbar.scrolled .logo-subtitulo,
.navbar.scrolled .logo-lema {
    opacity: 0;
    height: 0;
    margin: 0;
}

.logo-accent {
    color: var(--color-accent);
}

/* LINKS DE NAVEGACIÓN */
.navbar-nav .nav-link {
    color: var(--color-primary) !important;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    padding: 0.5rem 1rem !important;
    font-size: 1rem;
}

.navbar.scrolled .navbar-nav .nav-link {
    padding: 0.3rem 0.8rem !important;
    font-size: 0.9rem;
}

.navbar-nav .nav-link:after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--color-accent);
    transition: var(--transition);
}

.navbar-nav .nav-link:hover:after {
    width: 100%;
}

.navbar-nav .nav-link:hover {
    color: var(--color-accent) !important;
    transform: translateY(-1px);
}

/* BOTÓN TOGGLER */
.navbar-toggler {
    border: none;
    padding: 0.25rem 0.5rem;
    transition: var(--transition);
}

/* =========================================================
   HERO SECTION
========================================================= */
.hero {
    background: linear-gradient(rgba(26, 54, 93, 0.9), rgba(26, 54, 93, 0.9)), 
                url('https://images.unsplash.com/photo-1532094349884-543bc11b234d?ixlib=rb-4.0.3&auto=format&fit=crop&w=1200&q=80') center/cover no-repeat;
    color: var(--color-white);
    padding: clamp(4rem, 10vw, 8rem) 0;
    text-align: center;
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.hero p {
    font-size: clamp(1rem, 2vw, 1.2rem);
    max-width: min(700px, 90%);
    margin: 0 auto 2rem;
}

/* =========================================================
   BOTONES
========================================================= */
.btn-primary {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-white);
    font-weight: 600;
    transition: var(--transition);
}

.btn-primary:hover {
    background-color: #b3821c;
    border-color: #b3821c;
    transform: translateY(-1px);
}

.btn-outline-primary {
    color: var(--color-primary);
    border-color: var(--color-accent);
    font-weight: 600;
    transition: var(--transition);
}

.btn-outline-primary:hover {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-white);
    transform: translateY(-1px);
}

/* =========================================================
   SECCIONES Y ENCABEZADOS
========================================================= */
.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    color: var(--color-primary);
    position: relative;
    display: inline-block;
    padding-bottom: 0.5rem;
    font-weight: 700;
}

.section-header h2:after {
    content: '';
    position: absolute;
    width: 50%;
    height: 3px;
    background-color: var(--color-accent);
    bottom: 0;
    left: 25%;
    transition: var(--transition);
}

.section-header:hover h2:after {
    width: 80%;
    left: 10%;
}

/* =========================================================
   CARRUSEL DE PUBLICACIONES
========================================================= */
.carousel-container {
    position: relative;
    margin-bottom: 2rem;
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: var(--color-primary);
    color: white;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    opacity: 0.8;
    transition: opacity 0.3s;
}

.carousel-btn:hover {
    opacity: 1;
}

.carousel-btn.prev {
    left: -20px;
}

.carousel-btn.next {
    right: -20px;
}

.carousel-btn i {
    font-size: 1.2rem;
}

.publicaciones-carousel {
    display: flex;
    overflow-x: auto;
    scroll-behavior: smooth;
    gap: 2rem;
    padding: 1rem 0.5rem;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.publicaciones-carousel::-webkit-scrollbar {
    display: none;
}

.publicacion-card {
    background-color: var(--color-white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-medium);
    transition: var(--transition);
    flex: 0 0 min(100%, 300px);
    min-width: 280px;
}

.publicacion-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.publicacion-img {
    height: 200px;
    overflow: hidden;
}

.publicacion-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.publicacion-card:hover .publicacion-img img {
    transform: scale(1.08);
}

.publicacion-content {
    padding: 1.5rem;
}

.publicacion-content h3 {
    color: var(--color-primary);
    margin-bottom: 0.75rem;
    font-weight: 700;
    font-size: 1.1rem;
}

.publicacion-content p {
    color: var(--color-gray);
    margin-bottom: 1rem;
    font-size: 0.9rem;
    line-height: 1.5;
}

.publicacion-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--color-gray);
    font-size: 0.8rem;
    border-top: 1px solid #eee;
    padding-top: 1rem;
    margin-top: 1rem;
}

/* =========================================================
   FOOTER
========================================================= */
footer {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.logo-hummatec-footer {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    color: var(--color-white);
    text-decoration: none;
}

.logo-titulo-footer {
    font-size: 1.3rem;
    font-weight: bold;
    color: var(--color-white);
}

.logo-subtitulo-footer {
    font-size: 0.6rem;
    font-weight: 300;
    opacity: 0.9;
}

/* =========================================================
   RESPONSIVE
========================================================= */
@media (max-width: 768px) {
    :root {
        --navbar-height: 140px;
    }

    body {
        padding-top: var(--navbar-height);
    }

    .navbar {
        padding: 1rem 0;
    }

    .navbar.scrolled {
        padding: 0.5rem 0;
    }

    .navbar-collapse {
        background: var(--color-white);
        padding: 1rem;
        border-radius: 8px;
        margin-top: 1rem;
        box-shadow: var(--shadow-medium);
    }

    .logo-hummatec {
        align-items: flex-start;
        text-align: left;
    }

    .hero {
        padding: 6rem 0;
    }
}