/* ============================================================
   blog-od.css — Maquette OpenDesign pour le blog
   Scope sous .od. Charge sur le template blog (et pages
   paginees blog2.html, blog3.html) en plus de home-od.css.
   Genere via scope_css.py depuis la maquette Nextcloud.
   ============================================================ */

/* ===== Tokens (charte Rock Robot) ===== */
:root{
            --bg: #0E0E10;
            --bg-2: #07080A;
            --surface: #16161A;
            --surface-2: #1E1E24;
            --surface-3: #26262E;
            --fg: #F5F5F7;
            --fg-2: #E5E7EB;
            --muted: #9CA3AF;
            --muted-2: #6B7280;
            --border: rgba(255, 255, 255, 0.08);
            --border-strong: rgba(255, 255, 255, 0.16);
            --accent: #A855F7;
            --accent-deep: #7B2CBF;
            --accent-soft: rgba(168, 85, 247, 0.14);
            --warn: #FF6B35;
            --warn-soft: rgba(255, 107, 53, 0.12);
            --warn-deep: #E55A28;
            --success: #10B981;
            --success-soft: rgba(16, 185, 129, 0.14);
            --grad: linear-gradient(135deg, #7B2CBF 0%, #A855F7 45%, #FF6B35 100%);
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --ease-out: cubic-bezier(0.2, 0.8, 0.2, 1);
        }
/* Le wrapper .od doit passer au-dessus du fond fixe (.bg-layer = z-index 0).
   Sans cette regle, le fond fixed recouvre le hero et les sections. */
.od{ position: relative; z-index: 1; }
/* Les enfants directs du .od (autres que le fond) doivent aussi etre au-dessus
   du bg-layer qui est en position: fixed z-index: 0 dans le meme stacking context. */
.od > *:not(.bg-layer){ position: relative; z-index: 2; }
.od *, .od *::before, .od *::after{ box-sizing: border-box; }.od html, .od body{ margin: 0; padding: 0; }.od body{
            font-family: 'Space Grotesk', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
            background: var(--bg);
            color: var(--fg);
            line-height: 1.6;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            position: relative;
            min-height: 100vh;
        }.od img, .od svg{ max-width: 100%; display: block; }.od a{ color: var(--accent); text-decoration: none; transition: color 0.2s var(--ease-out); }a:hover{ color: var(--fg); }:focus{ outline: none; }:focus-visible{
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: 4px;
        }/* ===== Background high-tech allégé ===== */ .bg-layer{
            position: fixed;
            inset: 0;
            pointer-events: none;
            z-index: 0;
        }.bg-grid{
            background-image:
                linear-gradient(rgba(168, 85, 247, 0.035) 1px, transparent 1px),
                linear-gradient(90deg, rgba(168, 85, 247, 0.035) 1px, transparent 1px);
            background-size: 64px 64px;
            mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 0%, rgba(0,0,0,0.5) 60%, transparent 100%);
            -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 0%, rgba(0,0,0,0.5) 60%, transparent 100%);
        }.bg-orb{
            position: absolute;
            border-radius: 50%;
            filter: blur(80px);
            will-change: transform;
        }.bg-orb-1{
            top: -140px; left: -100px;
            width: 480px; height: 480px;
            background: radial-gradient(circle, var(--accent-deep) 0%, transparent 70%);
            opacity: 0.22;
            animation: orb-drift-1 24s ease-in-out infinite alternate;
        }.bg-orb-2{
            top: 35%; right: -180px;
            width: 440px; height: 440px;
            background: radial-gradient(circle, var(--warn) 0%, transparent 70%);
            opacity: 0.14;
            animation: orb-drift-2 30s ease-in-out infinite alternate;
        }.bg-orb-3{
            bottom: -180px; left: 25%;
            width: 560px; height: 560px;
            background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
            opacity: 0.13;
            animation: orb-drift-3 28s ease-in-out infinite alternate;
        }
        @keyframes orb-drift-1 {0%{ transform: translate(0, 0) scale(1); }100%{ transform: translate(70px, 50px) scale(1.12); }
        }
        @keyframes orb-drift-2 {0%{ transform: translate(0, 0) scale(1); }100%{ transform: translate(-80px, 70px) scale(1.08); }
        }
        @keyframes orb-drift-3 {0%{ transform: translate(0, 0) scale(1); }100%{ transform: translate(50px, -70px) scale(1.18); }
        }.bg-scan{
            position: absolute;
            inset: 0;
            background: linear-gradient(115deg, transparent 0%, transparent 49.5%, rgba(168, 85, 247, 0.04) 50%, transparent 50.5%, transparent 100%);
            background-size: 220% 220%;
            animation: scan-move 16s linear infinite;
        }
        @keyframes scan-move {0%{ background-position: 220% 0%; }100%{ background-position: -120% 0%; }
        }.bg-circuit{
            position: absolute;
            top: 0; right: 0;
            width: 420px; height: 420px;
            opacity: 0.07;
            color: var(--accent);
        }
        @media (max-width: 900px) {.bg-circuit{ width: 260px; height: 260px; opacity: 0.05; }.bg-orb-1, .bg-orb-2, .bg-orb-3{ filter: blur(60px); }
        }/* ===== Layout ===== */ .od .container{
            max-width: 1120px;
            margin: 0 auto;
            padding: 0 24px;
            position: relative;
            z-index: 1;
            display: block; /* surcharge le flex impose par style.css du site */
        }.od main{ position: relative; z-index: 1; }/* ===== Header / Nav ===== */ .site-header{
            position: sticky;
            top: 0;
            z-index: 50;
            backdrop-filter: blur(14px) saturate(140%);
            -webkit-backdrop-filter: blur(14px) saturate(140%);
            background: rgba(14, 14, 16, 0.6);
            border-bottom: 1px solid var(--border);
        }.nav{
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 24px;
        }.nav-logo{
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: var(--fg);
            font-weight: 600;
            font-size: 15px;
            letter-spacing: -0.01em;
        }.nav-logo:hover{ opacity: 0.85; color: var(--fg); }.nav-logo svg{ width: 28px; height: 28px; }.nav-links{
            display: flex;
            align-items: center;
            gap: 4px;
        }.nav-links a{
            color: var(--fg-2);
            font-size: 14px;
            font-weight: 500;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            transition: background 0.2s var(--ease-out), color 0.2s var(--ease-out);
        }.nav-links a:hover{ background: var(--surface); color: var(--fg); }.nav-links a.is-active{
            background: var(--accent-soft);
            color: var(--accent);
        }
        @media (max-width: 600px) {.nav-links a:not(.nav-cta){ display: none; }
        }/* ===== Hero ===== */ .od .hero{
            position: relative;
            padding: 72px 0 56px;
        }.od .hero-eyebrow{
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            background: var(--accent-soft);
            border: 1px solid rgba(168, 85, 247, 0.3);
            border-radius: 999px;
            font-family: 'Fira Code', monospace;
            font-size: 11px;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--fg-2);
            margin-bottom: 20px;
        }.od .hero-eyebrow::before{
            content: '';
            width: 6px; height: 6px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 8px var(--accent);
            animation: pulse-dot 2s ease-in-out infinite;
        }
        @keyframes pulse-dot {0%, 100%{ opacity: 1; }50%{ opacity: 0.4; }
        }.od .hero h1{
            font-size: clamp(36px, 6vw, 64px);
            font-weight: 600;
            line-height: 1.05;
            letter-spacing: -0.03em;
            margin: 0 0 18px;
            color: var(--fg);
            background: linear-gradient(180deg, var(--fg) 0%, #B8A8D4 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }.od .hero h1 .accent{
            background: var(--grad);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }.od .hero-lede{
            font-size: clamp(15px, 1.8vw, 18px);
            color: var(--muted);
            max-width: 640px;
            margin: 0 0 32px;
            line-height: 1.55;
        }.od .hero-meta{
            display: inline-flex;
            flex-wrap: wrap;
            gap: 24px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
            font-family: 'Fira Code', monospace;
            font-size: 12px;
            color: var(--muted);
            margin-top: 8px;
        }.od .hero-meta span{
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }.od .hero-meta strong{
            color: var(--fg);
            font-weight: 600;
            font-family: 'Space Grotesk', sans-serif;
        }/* ===== Filter chip rail ===== */ .filters{
            padding: 24px 0 0;
            border-top: 1px solid var(--border);
            margin-top: 32px;
        }.filters-label{
            font-family: 'Fira Code', monospace;
            font-size: 11px;
            letter-spacing: 0.1em;
            text-transform: uppercase;
            color: var(--muted);
            margin-bottom: 12px;
        }.chip-rail{
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }.chip{
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            background: var(--surface);
            color: var(--fg-2);
            border: 1px solid var(--border);
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            cursor: pointer;
            transition: background 0.2s var(--ease-out), border-color 0.2s var(--ease-out), color 0.2s var(--ease-out);
            white-space: nowrap;
        }.chip:hover{
            background: var(--surface-2);
            border-color: var(--border-strong);
            color: var(--fg);
        }.chip.is-active{
            background: var(--accent-soft);
            color: var(--accent);
            border-color: rgba(168, 85, 247, 0.4);
        }.chip .count{
            font-family: 'Fira Code', monospace;
            font-size: 11px;
            color: var(--muted-2);
            padding-left: 2px;
        }.chip.is-active .count{ color: var(--accent); opacity: 0.7; }/* ===== Section ===== */ .od .section{ padding: 56px 0; }/* ===== Featured article ===== */ .featured{
            margin-top: 32px;
        }.featured-label{
            font-family: 'Fira Code', monospace;
            font-size: 11px;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 16px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }.featured-label::before{
            content: '';
            width: 8px; height: 8px;
            background: var(--accent);
            border-radius: 2px;
            transform: rotate(45deg);
        }.featured-card{
            position: relative;
            display: grid;
            grid-template-columns: 0.85fr 1.15fr;
            gap: 32px;
            align-items: center;
            background: var(--surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            margin-top: 32px;
            margin-bottom: 36px;
            transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
        }.featured-card::before{
            content: '';
            position: absolute;
            inset: 0;
            padding: 2px;
            border-radius: inherit;
            background: linear-gradient(135deg, var(--accent) 0%, var(--warn) 100%);
            background-size: 200% 200%;
            -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
            mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
            pointer-events: none;
            z-index: 2;
            animation: border-shine 6s linear infinite;
        }
        @keyframes border-shine {0%{ background-position: 0% 50%; }50%{ background-position: 100% 50%; }100%{ background-position: 0% 50%; }
        }
        .featured-card:hover{
            transform: translateY(-4px);
            box-shadow: 0 0 100px 0 rgba(168, 85, 247, 0.6), 0 30px 60px -10px rgba(168, 85, 247, 0.5);
        }.featured-media{
            position: relative;
            aspect-ratio: 1 / 1;
            background: var(--surface-2);
            overflow: hidden;
        }.featured-media img{
            width: 100%; height: 100%;
            object-fit: cover;
            display: block;
        }.featured-media-placeholder{
            position: absolute; inset: 0;
            background: linear-gradient(135deg, var(--accent-deep) 0%, var(--surface-3) 50%, var(--warn) 100%);
            opacity: 0.3;
        }.featured-body{
            padding: 32px 32px 32px 0;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }.featured-body .article-cat{
            font-family: 'Fira Code', monospace;
            font-size: 11px;
            letter-spacing: 0.1em;
            text-transform: uppercase;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }.featured-body h2{
            font-size: clamp(22px, 3vw, 32px);
            font-weight: 600;
            line-height: 1.2;
            letter-spacing: -0.02em;
            color: var(--fg);
            margin: 0;
        }.featured-body h2 a{ color: var(--fg); }.featured-body h2 a:hover{ color: var(--accent); }.featured-excerpt{
            color: var(--muted);
            font-size: 15px;
            line-height: 1.65;
            margin: 0;
            display: -webkit-box;
            -webkit-box-orient: vertical;
            -webkit-line-clamp: 3;
            overflow: hidden;
        }.featured-meta{
            font-family: 'Fira Code', monospace;
            font-size: 12px;
            color: var(--muted);
            display: inline-flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: auto;
        }.featured-meta span{ display: inline-flex; align-items: center; gap: 6px; }.featured-meta strong{ color: var(--fg); font-weight: 500; font-family: 'Space Grotesk', sans-serif; }.featured-cta{
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--accent);
            font-size: 14px;
            font-weight: 500;
            margin-top: 8px;
        }.featured-cta .arrow{ transition: transform 0.2s var(--ease-out); }.featured-cta:hover .arrow{ transform: translateX(3px); }
        @media (max-width: 800px) {.featured-card{ grid-template-columns: 1fr; gap: 0; }.featured-body{ padding: 28px; }
        }/* ===== Article grid ===== */ .articles-grid{
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin: 1.5rem 0 0;
            width: 100%;
        }.article-card{
            position: relative;
            background: var(--surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: transform 0.25s var(--ease-out), box-shadow 0.25s var(--ease-out);
        }.article-card::before{
            content: '';
            position: absolute;
            inset: 0;
            padding: 2px;
            border-radius: inherit;
            background: linear-gradient(135deg, var(--accent) 0%, var(--warn) 100%);
            -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
            mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
            pointer-events: none;
            z-index: 2;
            transition: background 0.3s var(--ease-out);
        }
        .article-card::after{
            content: '';
            position: absolute;
            top: 12px; right: 12px;
            width: 14px; height: 14px;
            background: linear-gradient(135deg, transparent 50%, var(--accent) 50%);
            border-radius: 2px;
            opacity: 0.5;
            transition: opacity 0.3s var(--ease-out);
        }.article-card:hover{
            transform: translateY(-3px);
            box-shadow: 0 14px 36px -16px rgba(168, 85, 247, 0.4);
        }.article-card:hover::before{
            background: linear-gradient(135deg, rgba(168, 85, 247, 0.55) 0%, rgba(255, 107, 53, 0.4) 100%);
        }
        .article-card:hover::after{ opacity: 1; }.article-media{
            position: relative;
            display: block;
            aspect-ratio: 1 / 1;
            overflow: hidden;
        }.article-media img{
            width: 100%; height: 100%;
            object-fit: cover;
            display: block;
            transition: transform 0.6s var(--ease-out);
        }.article-media-link{ display: none; }.article-card:hover .article-media img{ transform: scale(1.04); }.article-media-placeholder{
            position: relative;
            aspect-ratio: 1 / 1;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--accent-deep) 0%, var(--surface-3) 50%, var(--warn-deep) 100%);
            overflow: hidden;
        }.article-media-placeholder::before{
            content: '';
            position: absolute;
            inset: 0;
            background-image:
                linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
            background-size: 20px 20px;
        }.article-media-placeholder svg{
            position: relative;
            width: 56px; height: 56px;
            color: rgba(255, 255, 255, 0.5);
        }.article-body{
            padding: 20px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex: 1;
        }.article-cat{
            font-family: 'Fira Code', monospace;
            font-size: 10px;
            letter-spacing: 0.1em;
            text-transform: uppercase;
            color: var(--accent);
        }.article-card h3{
            font-size: 16px;
            font-weight: 600;
            letter-spacing: -0.01em;
            line-height: 1.35;
            margin: 0;
            display: -webkit-box;
            -webkit-box-orient: vertical;
            -webkit-line-clamp: 2;
            overflow: hidden;
        }.article-card h3 a{ color: var(--fg); }.article-card h3 a:hover{ color: var(--accent); }.article-excerpt{
            color: var(--muted);
            font-size: 13px;
            line-height: 1.55;
            margin: 0;
            display: -webkit-box;
            -webkit-box-orient: vertical;
            -webkit-line-clamp: 3;
            overflow: hidden;
            flex: 1;
        }.article-meta{
            font-family: 'Fira Code', monospace;
            font-size: 11px;
            color: var(--muted);
            display: inline-flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 4px;
            padding-top: 12px;
            border-top: 1px solid var(--border);
        }.article-meta span{ display: inline-flex; align-items: center; gap: 5px; }.article-meta strong{ color: var(--fg-2); font-weight: 500; font-family: 'Space Grotesk', sans-serif; }
        @media (max-width: 900px) {.articles-grid{ grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 600px) {.articles-grid{ grid-template-columns: 1fr; }
        }/* ===== Pagination ===== */ .pagination{
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            padding: 16px 0;
            border-top: 1px solid var(--border);
            margin-top: 48px;
        }.pagination-btn{
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 18px;
            border-radius: var(--radius-sm);
            background: var(--surface);
            color: var(--fg-2);
            border: 1px solid var(--border);
            font-size: 14px;
            font-weight: 500;
            transition: background 0.2s var(--ease-out), border-color 0.2s var(--ease-out), color 0.2s var(--ease-out);
        }.pagination-btn:hover{
            background: var(--surface-2);
            border-color: var(--accent);
            color: var(--fg);
        }.pagination-btn.is-disabled{
            opacity: 0.4;
            cursor: not-allowed;
            pointer-events: none;
        }.pagination-btn .arrow{
            transition: transform 0.2s var(--ease-out);
        }.pagination-btn:hover .arrow-right{ transform: translateX(3px); }.pagination-btn:hover .arrow-left{ transform: translateX(-3px); }.pagination-status{
            font-family: 'Fira Code', monospace;
            font-size: 12px;
            color: var(--muted);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }.pagination-status strong{
            color: var(--fg);
            font-weight: 600;
            font-family: 'Space Grotesk', sans-serif;
        }
        @media (max-width: 600px) {.pagination{
                display: grid;
                grid-template-columns: 1fr auto 1fr;
                gap: 12px;
                justify-items: center;
                align-items: center;
            }
            .pagination-status { grid-column: 2; grid-row: 1; }
            .pagination-prev { grid-column: 1; grid-row: 1; justify-self: start; }
            .pagination-next { grid-column: 3; grid-row: 1; justify-self: end; }
        }/* ===== Footer ===== */ .od footer{
            margin-top: 80px;
            background: var(--bg-2);
            border-top: 1px solid var(--border);
            position: relative;
            z-index: 1;
        }.od .footer-grid{
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
            padding: 56px 0 32px;
        }.od .footer-brand .footer-title{
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 16px;
            color: var(--fg);
            font-weight: 600;
            margin: 0 0 8px;
        }.od .footer-brand .footer-title svg{ width: 22px; height: 22px; }.od .footer-tagline{ color: var(--muted); font-size: 14px; margin: 0 0 16px; }.od .footer-meta a{ color: var(--muted); font-size: 13px; display: inline-block; margin-right: 16px; }.od .footer-meta a:hover{ color: var(--accent); }.od .footer-col h2{
            font-family: 'Fira Code', monospace;
            font-size: 11px;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: var(--muted);
            margin: 0 0 14px;
            font-weight: 500;
        }.od .footer-col + .footer-col h2{ margin-top: 24px; }.od .footer-col ul{ list-style: none; padding: 0; margin: 0; }.od .footer-col li{ padding: 4px 0; }.od .footer-col a{
            color: var(--fg-2);
            font-size: 13px;
            transition: color 0.15s var(--ease-out);
        }.od .footer-col a:hover{ color: var(--accent); }.od .footer-bottom{
            border-top: 1px solid var(--border);
            padding: 20px 0;
            text-align: center;
            font-family: 'Fira Code', monospace;
            font-size: 12px;
            color: var(--muted-2);
        }.od .footer-bottom a{ color: var(--muted); }.od .footer-bottom a:hover{ color: var(--accent); }
        @media (max-width: 800px) {.od .footer-grid{ grid-template-columns: 1fr; gap: 32px; padding: 40px 0 24px; }
        }/* ===== Reveal animations ===== */ .reveal{
            opacity: 0;
            transform: translateY(12px);
            transition: opacity 0.5s var(--ease-out), transform 0.5s var(--ease-out);
        }.reveal.in{ opacity: 1; transform: translateY(0); }

        @media (prefers-reduced-motion: reduce) {.od *, .od *::before, .od *::after{
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }.bg-orb{ animation: none !important; }.bg-scan{ animation: none !important; opacity: 0.3; }.bg-circuit{ opacity: 0.05; }.reveal{ opacity: 1 !important; transform: none !important; }.od .hero-eyebrow::before{ animation: none !important; }.featured-card::before{ animation: none !important; }
        }

        @media (max-width: 600px) {.od .hero{ padding: 56px 0 40px; }.od .section{ padding: 40px 0; }.featured-body{ padding: 24px; }
        }