/* =========================================================
   PROYECTOS PAGE — Hero + Sidebar + Grid de proyectos
   100% basado en tokens de theme.css. No usa colores hex.
   ========================================================= */

.proyectos-page {
    background: var(--bg-page) !important;
    color: var(--text-primary);
}

/* Espacio para el header fijo */
.proyectos-page #main-content {
    padding-top: 90px;
    background: var(--bg-page);
}

/* =========================================================
   HERO
   ========================================================= */
.proyectos-hero {
    position: relative;
    padding: 50px 0 70px;
    background: linear-gradient(180deg, var(--bg-page) 0%, var(--bg-elevated) 100%);
    overflow: hidden;
}

.proyectos-hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}

.hero-dot {
    position: absolute;
    border-radius: 50%;
    opacity: 0.55;
}

.hero-dot-1 { width: 14px; height: 14px; background: var(--brand-500);    top: 15%; left: 8%;  opacity: 0.45; }
.hero-dot-2 { width: 10px; height: 10px; background: var(--accent-purple); top: 22%; left: 18%; opacity: 0.50; }
.hero-dot-3 { width: 12px; height: 12px; background: var(--accent-coral);  top: 18%; right: 12%; opacity: 0.45; }
.hero-dot-4 { width: 8px;  height: 8px;  background: var(--brand-500);    top: 60%; right: 6%;  opacity: 0.50; }
.hero-dot-5 { width: 10px; height: 10px; background: var(--accent-purple); top: 70%; left: 10%; opacity: 0.45; }

.proyectos-hero-content {
    position: relative;
    z-index: 1;
    max-width: 720px;
    margin: 0 auto;
    text-align: center;
}

.proyectos-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: var(--text-brand);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 18px;
}

.proyectos-hero-badge .badge-arrow {
    color: var(--text-brand);
    opacity: 0.7;
    font-size: 14px;
}

.proyectos-hero-title {
    color: var(--text-primary) !important;
    font-size: 46px;
    font-weight: 700;
    line-height: 1.15;
    margin: 0 0 20px;
    letter-spacing: -0.5px;
}

.proyectos-hero-title .title-accent {
    color: var(--text-brand);
    display: inline-block;
}

.proyectos-hero-desc {
    color: var(--text-muted) !important;
    font-size: 16.5px;
    line-height: 1.6;
    margin: 0 auto 38px;
    max-width: 600px;
    opacity: 1 !important;
}

/* Stats */
.proyectos-stats {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 40px;
    flex-wrap: wrap;
}

.stat-card {
    display: flex;
    align-items: center;
    gap: 14px;
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
}

.stat-icon-mint   { background: var(--bg-brand-soft); color: var(--text-brand); }
.stat-icon-purple { background: rgba(139, 92, 246, 0.14); color: var(--accent-purple); }
.stat-icon-orange { background: rgba(251, 146, 60, 0.14); color: var(--accent-orange); }

.stat-text {
    display: flex;
    flex-direction: column;
    text-align: left;
    line-height: 1.2;
}

.stat-value {
    color: var(--text-primary);
    font-size: 26px;
    font-weight: 700;
}

.stat-label {
    color: var(--text-muted);
    font-size: 13.5px;
}

/* =========================================================
   LAYOUT: SIDEBAR + CONTENT
   ========================================================= */
.proyectos-section {
    padding: 30px 0 70px;
    background: var(--bg-page);
}

.proyectos-layout {
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 32px;
    align-items: start;
}

/* =========================================================
   SIDEBAR
   ========================================================= */
.proyectos-sidebar {
    position: sticky;
    top: 100px;
    display: flex;
    flex-direction: column;
    gap: 18px;
    align-self: start;
}

.sidebar-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 22px 18px;
    box-shadow: var(--shadow-xs);
}

.sidebar-card-title {
    color: var(--text-primary) !important;
    font-size: 14.5px;
    font-weight: 600;
    margin: 0 0 14px;
    opacity: 1 !important;
}

/* Filtros de categoría */
.sidebar-filters {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sidebar-filter {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background var(--t-fast), color var(--t-fast);
    font-family: inherit;
    text-align: left;
}

.sidebar-filter:hover {
    background: var(--bg-muted);
    color: var(--text-primary);
}

.sidebar-filter.active {
    background: var(--bg-brand-softer);
    color: var(--text-brand-strong);
}

.sidebar-filter i {
    width: 16px;
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
    flex-shrink: 0;
    transition: color var(--t-fast);
}

.sidebar-filter.active i {
    color: var(--text-brand);
}

.sidebar-filter-label {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sidebar-filter-count {
    background: var(--bg-muted);
    color: var(--text-muted);
    font-size: 12px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: var(--radius-pill);
    min-width: 26px;
    text-align: center;
    transition: background var(--t-fast), color var(--t-fast);
    flex-shrink: 0;
}

.sidebar-filter.active .sidebar-filter-count {
    background: var(--brand-500);
    color: var(--text-inverse);
}

/* Radios de tipo de contenido */
.sidebar-radios {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.sidebar-radio {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    border-radius: var(--radius-xs);
    cursor: pointer;
    transition: background var(--t-fast);
    font-size: 14px;
    color: var(--text-secondary);
    margin: 0;
}

.sidebar-radio:hover {
    background: var(--bg-muted);
}

.sidebar-radio input[type="radio"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.sidebar-radio-mark {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: 1.5px solid var(--border-strong);
    flex-shrink: 0;
    position: relative;
    transition: border-color var(--t-fast);
}

.sidebar-radio-mark::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--brand-500);
    transform: translate(-50%, -50%) scale(0);
    transition: transform var(--t-fast);
}

.sidebar-radio input:checked ~ .sidebar-radio-mark {
    border-color: var(--brand-500);
}

.sidebar-radio input:checked ~ .sidebar-radio-mark::after {
    transform: translate(-50%, -50%) scale(1);
}

.sidebar-radio input:checked ~ .sidebar-radio-label {
    color: var(--text-primary);
    font-weight: 500;
}

.sidebar-radio-label {
    flex: 1;
}

/* CTA inferior del sidebar */
.sidebar-cta {
    background: linear-gradient(135deg, var(--brand-50) 0%, var(--brand-100) 100%);
    border: 1px solid var(--border-brand);
    border-radius: var(--radius-md);
    padding: 22px 20px;
    text-align: center;
}

.sidebar-cta h4 {
    color: var(--text-primary) !important;
    font-size: 15px;
    font-weight: 600;
    margin: 0 0 6px;
    opacity: 1 !important;
}

.sidebar-cta p {
    color: var(--text-secondary) !important;
    font-size: 13px;
    margin: 0 0 16px;
    line-height: 1.45;
    opacity: 1 !important;
}

.sidebar-cta-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--btn-primary-bg);
    color: var(--btn-primary-text) !important;
    text-decoration: none !important;
    padding: 10px 22px;
    border-radius: var(--radius-sm);
    font-size: 13.5px;
    font-weight: 600;
    transition: background var(--t-fast), transform var(--t-fast), box-shadow var(--t-fast);
}

.sidebar-cta-btn:hover {
    background: var(--btn-primary-bg-hover);
    color: var(--btn-primary-text) !important;
    transform: translateY(-1px);
    box-shadow: var(--btn-primary-shadow);
}

/* =========================================================
   CONTENIDO DERECHO
   ========================================================= */
.proyectos-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 22px;
    gap: 16px;
    flex-wrap: wrap;
}

.proyectos-toolbar-title {
    color: var(--text-primary) !important;
    font-size: 18px;
    font-weight: 600;
    margin: 0;
    opacity: 1 !important;
    border: none !important;
    padding: 0 !important;
}

.proyectos-sort select {
    /* Importante: usar propiedades INDIVIDUALES (no la shorthand `background`)
       para no resetear background-image al cambiar tema. */
    background-color: var(--input-bg) !important;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'/></svg>");
    background-repeat: no-repeat;
    background-position: right 14px center;
    background-size: 12px;
    border: 1px solid var(--input-border);
    border-radius: var(--radius-sm);
    padding: 8px 36px 8px 14px;
    font-size: 13.5px;
    color: var(--input-text) !important;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    transition: border-color var(--t-fast),
                background-color var(--t-fast),
                color var(--t-fast);
}

/* Las <option> no siempre heredan los colores del <select>; les damos
   explícitamente fondo y texto adaptados al tema actual. */
.proyectos-sort select option {
    background-color: var(--bg-elevated);
    color: var(--text-primary);
}

.proyectos-sort select:focus,
.proyectos-sort select:hover {
    outline: none;
    border-color: var(--brand-500);
    color: var(--text-primary) !important;
}

/* Grid de tarjetas */
.proyectos-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
    align-items: stretch;
}

/* Tarjeta de proyecto */
.proyecto-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xs);
    transition: transform var(--t-base), box-shadow var(--t-base),
                border-color var(--t-base);
    display: flex;
    flex-direction: column;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
}

.proyecto-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--border-brand);
}

/* Foco accesible al navegar con Tab */
.proyecto-card:focus,
.proyecto-card:focus-visible {
    outline: 2px solid var(--brand-500);
    outline-offset: 3px;
}

.proyecto-card-img {
    position: relative;
    height: 170px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
}

/* Patrones de fondo por categoría — gradientes distintos */
.proyecto-card-img[data-pattern="data"] { background: linear-gradient(135deg, #0c4a6e 0%, #0f172a 100%); }
.proyecto-card-img[data-pattern="ml"]   { background: linear-gradient(135deg, #064e3b 0%, #0f172a 100%); }
.proyecto-card-img[data-pattern="bi"]   { background: linear-gradient(135deg, #1e1b4b 0%, #0f172a 100%); }
.proyecto-card-img[data-pattern="ai"]   { background: linear-gradient(135deg, #581c87 0%, #1e1b4b 100%); }
.proyecto-card-img[data-pattern="code"] { background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%); }
.proyecto-card-img[data-pattern="viz"]  { background: linear-gradient(135deg, #065f46 0%, #134e4a 100%); }

/* Patrón decorativo: rejilla sutil */
.proyecto-card-img::before {
    content: '';
    position: absolute;
    inset: 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);
    background-size: 24px 24px;
    pointer-events: none;
}

.proyecto-card-img::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 70% 30%, rgba(11, 206, 175, 0.18), transparent 60%);
    pointer-events: none;
}

.proyecto-card-img-icon {
    color: rgba(255, 255, 255, 0.22);
    font-size: 56px;
    position: relative;
    z-index: 1;
}

.proyecto-card-tag {
    position: absolute;
    bottom: 14px;
    left: 14px;
    z-index: 2;
    display: inline-flex;
    align-items: center;
    background: rgba(11, 206, 175, 0.18);
    color: #ffffff;
    font-size: 11.5px;
    font-weight: 500;
    padding: 5px 12px;
    border-radius: var(--radius-pill);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.18);
}

.proyecto-card-body {
    padding: 18px 20px 18px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex: 1;
}

.proyecto-card-title {
    color: var(--text-primary) !important;
    font-size: 17px;
    font-weight: 600;
    line-height: 1.3;
    margin: 0;
    opacity: 1 !important;
}

.proyecto-card-desc {
    color: var(--text-muted) !important;
    font-size: 13.5px;
    line-height: 1.5;
    margin: 0;
    opacity: 1 !important;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.proyecto-card-footer {
    margin-top: auto;
    display: flex;
    align-items: center;
    gap: 14px;
    padding-top: 12px;
    border-top: 1px solid var(--border-subtle);
}

.proyecto-card-meta {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: var(--text-muted);
    font-size: 12.5px;
}

.proyecto-card-meta i {
    color: var(--text-muted);
    font-size: 12px;
}

.proyecto-card-link {
    margin-left: auto;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    background: var(--bg-muted);
    color: var(--text-secondary) !important;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none !important;
    transition: background var(--t-fast), color var(--t-fast), transform var(--t-fast);
    font-size: 12px;
}

.proyecto-card-link:hover {
    background: var(--brand-500);
    color: var(--text-inverse) !important;
    transform: translate(2px, -2px);
    text-decoration: none !important;
}

/* Estado vacío del grid */
.proyectos-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.proyectos-empty i {
    color: rgba(11, 206, 175, 0.5);
    font-size: 48px;
    display: block;
    margin-bottom: 14px;
}

.proyectos-empty h4 {
    color: var(--text-primary) !important;
    font-size: 18px;
    font-weight: 600;
    margin: 0 0 6px;
    opacity: 1 !important;
}

.proyectos-empty p {
    color: var(--text-muted) !important;
    font-size: 14px;
    margin: 0;
    opacity: 1 !important;
}

/* CTA inferior: GitHub */
.proyectos-bottom-cta {
    margin-top: 36px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 20px 26px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
    box-shadow: var(--shadow-xs);
}

.bottom-cta-content {
    display: flex;
    align-items: center;
    gap: 16px;
    flex: 1;
    min-width: 0;
}

.bottom-cta-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--bg-brand-soft);
    color: var(--text-brand);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
}

.bottom-cta-text h4 {
    color: var(--text-primary) !important;
    font-size: 16px;
    font-weight: 600;
    margin: 0 0 4px;
    opacity: 1 !important;
}

.bottom-cta-text p {
    color: var(--text-muted) !important;
    font-size: 13.5px;
    margin: 0;
    opacity: 1 !important;
}

.bottom-cta-btn,
.bottom-cta-btn:link,
.bottom-cta-btn:visited {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--btn-dark-bg);
    color: var(--btn-dark-text) !important;
    padding: 11px 20px;
    border-radius: var(--radius-sm);
    font-size: 13.5px;
    font-weight: 600;
    text-decoration: none !important;
    transition: background var(--t-fast), color var(--t-fast),
                transform var(--t-fast), box-shadow var(--t-fast);
    border: 1px solid transparent;
}

/* Forzar a span e i a heredar el color del botón en cualquier tema */
.bottom-cta-btn span,
.bottom-cta-btn i,
.dark-vertion .bottom-cta-btn span,
.dark-vertion .bottom-cta-btn i,
.white-vertion .bottom-cta-btn span,
.white-vertion .bottom-cta-btn i {
    color: inherit !important;
}

.bottom-cta-btn:hover,
.bottom-cta-btn:focus {
    background: var(--btn-dark-bg-hover);
    color: var(--btn-dark-text) !important;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
    text-decoration: none !important;
}

.bottom-cta-btn i.fa-arrow-right {
    font-size: 12px;
}

/* En dark mode, agregamos un borde sutil para que el botón
   claro no se sienta "flotando" sobre el fondo oscuro */
.dark-vertion .bottom-cta-btn {
    border-color: var(--border-strong);
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media only screen and (max-width: 992px) {
    .proyectos-layout {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .proyectos-sidebar {
        position: static;
        flex-direction: row;
        flex-wrap: wrap;
        gap: 14px;
    }

    .proyectos-sidebar .sidebar-card,
    .proyectos-sidebar .sidebar-cta {
        flex: 1 1 280px;
    }

    .proyectos-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .proyectos-hero {
        padding: 36px 0 56px;
    }

    .proyectos-hero-title {
        font-size: 36px;
    }

    .proyectos-stats {
        gap: 28px;
    }
}

@media only screen and (max-width: 768px) {
    .proyectos-page #main-content {
        padding-top: 80px;
    }

    .proyectos-hero {
        padding: 28px 0 44px;
    }

    .proyectos-hero-title {
        font-size: 28px;
        line-height: 1.2;
    }

    .proyectos-hero-desc {
        font-size: 15px;
    }

    .proyectos-stats {
        gap: 18px;
    }

    .stat-card {
        gap: 10px;
    }

    .stat-icon {
        width: 46px;
        height: 46px;
        font-size: 18px;
    }

    .stat-value {
        font-size: 22px;
    }

    .proyectos-section {
        padding: 12px 0 56px;
    }

    .proyectos-sidebar {
        flex-direction: column;
    }

    .proyectos-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .proyectos-toolbar-title {
        font-size: 16px;
    }

    .proyectos-bottom-cta {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
    }

    .bottom-cta-content {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }

    .bottom-cta-btn {
        justify-content: center;
    }
}

@media only screen and (max-width: 480px) {
    .proyectos-hero-title {
        font-size: 24px;
    }

    .proyectos-stats {
        flex-direction: column;
        gap: 14px;
    }

    .stat-card {
        width: 100%;
        max-width: 240px;
    }
}

/* =========================================================
   HEADER — Fondo y colores para la página de proyectos
   El index.html tiene hero image detrás → header transparente OK
   Aquí no hay imagen, así que necesitamos fondo propio.
   Usamos los tokens --nav-* ya definidos en theme.css.
   ========================================================= */

.proyectos-page .mh-header {
    background: var(--nav-bg);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--nav-border);
    box-shadow: var(--nav-shadow);
}

.proyectos-page .mh-header.nav-strict {
    background: var(--nav-bg-scroll);
    box-shadow: 0 2px 16px rgba(0,0,0,.15);
}

/* Links del nav */
.proyectos-page .mh-header .navbar-nav li a {
    color: var(--nav-text) !important;
    opacity: 1 !important;
}

.proyectos-page .mh-header .navbar-nav li a:hover {
    color: var(--nav-text-hover) !important;
}

.proyectos-page .mh-header .navbar-nav li.active a {
    color: var(--nav-text-active) !important;
    border-color: var(--nav-text-active) !important;
}

/* Hamburger */
.proyectos-page .navbar-toggler .icon,
.proyectos-page .navbar-toggler .icon::before,
.proyectos-page .navbar-toggler .icon::after {
    background-color: var(--nav-text) !important;
}