/* ═══════════════════════════════════════
   OPTIMISATION INFRA PAGE — style.css
═══════════════════════════════════════ */

/* ── BACK BAR ── */
.back-bar { position: sticky; top: 52px; z-index: 100; background: rgba(255,255,255,0.9); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border-light); }
.back-inner { max-width: 1100px; margin: 0 auto; padding: 10px 40px; display: flex; align-items: center; gap: 20px; }
.back-btn { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 500; color: var(--blue); transition: var(--transition); }
.back-btn:hover { opacity: 0.7; }
.back-breadcrumb { font-size: 13px; color: var(--text-3); }
.back-breadcrumb::before { content: '/'; margin-right: 8px; opacity: 0.4; }

/* ── HERO ── */
.oi-hero {
  padding: 80px 40px 60px;
  background: #0a0f1e;
  border-bottom: 1px solid #1e2433;
  position: relative;
  overflow: hidden;
}
.oi-hero-bg {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 70% 30%, rgba(251,191,36,0.06) 0%, transparent 55%),
              radial-gradient(ellipse at 20% 70%, rgba(0,113,227,0.06) 0%, transparent 50%);
  pointer-events: none;
}
.oi-hero h1 { color: #f1f5f9; }
.oi-hero h1 span { color: #fbbf24; }
.oi-hero .project-lead { color: #94a3b8; }

.project-hero-inner { max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: 1fr 420px; gap: 60px; align-items: center; position: relative; }
.project-tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.project-chip { background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.12); color: #94a3b8; font-size: 12px; font-weight: 500; padding: 4px 12px; border-radius: 980px; }
.oi-chip { background: rgba(251,191,36,0.1); border-color: rgba(251,191,36,0.3); color: #fbbf24; }
.oi-chip-cont { background: rgba(0,113,227,0.12); border-color: rgba(0,113,227,0.3); color: #60a5fa; }
.project-chip.blue { background: rgba(0,113,227,0.15); border-color: rgba(0,113,227,0.4); color: #60a5fa; }
.project-hero h1 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); font-weight: 700; letter-spacing: -1.5px; line-height: 1.1; margin-bottom: 16px; }
.project-lead { font-size: 1.05rem; line-height: 1.7; margin-bottom: 20px; max-width: 540px; }

.oi-quote { font-style: italic; color: #fbbf24; font-size: 1rem; margin-bottom: 28px; padding-left: 16px; border-left: 2px solid #fbbf24; opacity: 0.8; }
.oi-quote-mark { font-size: 1.3rem; }

.project-stats-row { display: flex; gap: 32px; flex-wrap: wrap; }
.pstat-num { font-size: 2rem; font-weight: 700; color: #f1f5f9; line-height: 1; letter-spacing: -1px; }
.oi-num { color: #fbbf24; }
.pstat-label { font-size: 12px; color: #64748b; margin-top: 4px; font-weight: 500; }
.project-hero-caption { text-align: center; font-size: 12px; color: #64748b; margin-top: 10px; }

.oi-hero-img { width: 100%; border-radius: var(--radius); box-shadow: var(--shadow-lg); border: 1px solid #30363d; cursor: zoom-in; transition: var(--transition); }
.oi-hero-img:hover { transform: scale(1.02); }

/* ── PBLOCK ── */
.pblock { padding: 80px 0; }
.pblock-alt { background: var(--bg2); }
.pblock-inner { max-width: 1100px; margin: 0 auto; padding: 0 40px; }
.pblock .section-desc { margin-bottom: 40px; }

/* ── CONTEXT ── */
.context-2col { display: grid; grid-template-columns: 1fr 300px; gap: 48px; align-items: start; }
.context-txt p { font-size: 15px; color: var(--text-2); line-height: 1.75; margin-bottom: 16px; }
.context-txt strong { color: var(--text); font-weight: 600; }
.context-infos { background: #fff; border: 1px solid var(--border-light); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow-sm); }
.info-item { display: flex; flex-direction: column; gap: 2px; padding: 12px 0; border-bottom: 1px solid var(--border-light); }
.info-item:last-child { border-bottom: none; padding-bottom: 0; } .info-item:first-child { padding-top: 0; }
.info-label { font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; color: var(--text-3); }
.info-val { font-size: 14px; font-weight: 500; color: var(--text); }

/* ── OI GRID ── */
.oi-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.oi-card { background: #fff; border: 1px solid var(--border-light); border-radius: var(--radius); overflow: hidden; cursor: zoom-in; transition: var(--transition); }
.oi-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: rgba(251,191,36,0.3); }
.oi-card-img { position: relative; height: 180px; overflow: hidden; background: #f8fafc; }
.oi-card-img img { width: 100%; height: 100%; object-fit: cover; object-position: top; transition: transform 0.4s; }
.oi-card:hover .oi-card-img img { transform: scale(1.04); }
.oi-zoom { position: absolute; bottom: 8px; right: 8px; background: rgba(0,0,0,0.55); color: #fff; font-size: 11px; padding: 3px 8px; border-radius: 980px; backdrop-filter: blur(4px); }
.oi-card-num { font-size: 2rem; font-weight: 700; color: #fbbf24; opacity: 0.2; line-height: 1; margin: 16px 20px 6px; letter-spacing: -1px; }
.oi-card-body { padding: 0 20px 20px; }
.oi-card-body h3 { font-size: 1rem; font-weight: 600; color: var(--text); margin-bottom: 8px; }
.oi-card-body p { font-size: 13px; color: var(--text-3); line-height: 1.65; margin-bottom: 12px; }
.oi-card-body code { background: var(--bg2); padding: 2px 5px; border-radius: 4px; font-size: 12px; color: #0078d4; font-family: 'SF Mono', monospace; }
.real-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { background: var(--bg2); color: var(--text-2); font-size: 12px; font-weight: 500; padding: 4px 10px; border-radius: 6px; }
.chip.blue { background: var(--blue-light); color: var(--blue); }
.oi-chip-cyber { background: #fef2f2; color: #dc2626; }

/* ── GPO GRID ── */
.gpo-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.gpo-card { background: #fff; border: 1px solid var(--border-light); border-radius: var(--radius); overflow: hidden; cursor: zoom-in; transition: var(--transition); display: grid; grid-template-columns: 200px 1fr; }
.gpo-card:hover { box-shadow: var(--shadow-md); border-color: rgba(251,191,36,0.3); transform: translateY(-2px); }
.gpo-card-img { position: relative; height: 180px; overflow: hidden; background: #f8fafc; }
.gpo-card-img img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.gpo-info { padding: 20px; }
.gpo-tag { font-size: 10px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; padding: 3px 10px; border-radius: 4px; margin-bottom: 10px; display: inline-block; }
.user-tag { background: #eff6ff; color: #0071e3; }
.machine-tag { background: #ecfdf5; color: #059669; }
.domain-tag { background: #fef2f2; color: #dc2626; }
.gpo-info h3 { font-size: 14px; font-weight: 600; color: var(--text); margin-bottom: 8px; }
.gpo-info p { font-size: 13px; color: var(--text-3); line-height: 1.65; margin-bottom: 10px; }
.gpo-info strong { color: var(--text); font-weight: 600; }
.gpo-info em { color: var(--text-3); }
.gpo-info code { background: var(--bg2); padding: 2px 5px; border-radius: 4px; font-size: 12px; color: #0078d4; font-family: 'SF Mono', monospace; }

/* ── LAN/DMZ ── */
.landmz-grid { display: flex; flex-direction: column; gap: 40px; }
.landmz-block { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; background: #fff; border: 1px solid var(--border-light); border-radius: var(--radius); overflow: hidden; }
.landmz-visual { position: relative; cursor: zoom-in; transition: var(--transition); }
.landmz-visual:hover img { transform: scale(1.02); }
.landmz-visual img { width: 100%; height: 240px; object-fit: cover; object-position: top; display: block; }
.landmz-info { padding: 28px 28px 28px 0; }
.landmz-badge { font-size: 10px; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; color: #fbbf24; margin-bottom: 10px; }
.landmz-info h3 { font-size: 1rem; font-weight: 600; color: var(--text); margin-bottom: 12px; }
.landmz-info p { font-size: 13px; color: var(--text-3); line-height: 1.75; margin-bottom: 16px; }
.landmz-info strong { color: var(--text); font-weight: 600; }
.landmz-info code { background: var(--bg2); padding: 2px 5px; border-radius: 4px; font-size: 12px; color: #0078d4; font-family: 'SF Mono', monospace; }

.oi-flux { display: flex; flex-direction: column; gap: 8px; margin-bottom: 16px; padding: 14px; background: var(--bg2); border-radius: var(--radius-sm); }
.flux-item { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--text-2); }
.flux-arrow { font-weight: 700; color: #059669; flex-shrink: 0; }
.flux-arrow.red { color: #dc2626; }
.flux-arrow.green { color: #059669; }
.flux-blocked { opacity: 0.7; }

/* ── VALIDATION ── */
.validation-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.val-card { background: #fff; border: 1px solid var(--border-light); border-radius: var(--radius); overflow: hidden; cursor: zoom-in; transition: var(--transition); }
.val-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: rgba(251,191,36,0.3); }
.val-card-img { height: 150px; overflow: hidden; background: #f8fafc; position: relative; }
.val-card-img img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.val-card-placeholder { height: 150px; background: linear-gradient(135deg, #1e2433 0%, #0a0f1e 100%); display: flex; flex-direction: column; align-items: center; justify-content: center; }
.val-tool { font-family: 'SF Mono', monospace; font-size: 1.4rem; font-weight: 700; color: #fbbf24; }
.val-tool-sub { font-size: 11px; color: #64748b; margin-top: 4px; letter-spacing: 1px; }
.val-body { padding: 16px; }
.val-body h3 { font-size: 14px; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.val-body p { font-size: 13px; color: var(--text-3); line-height: 1.6; }
.val-body code { background: var(--bg2); padding: 2px 5px; border-radius: 4px; font-size: 11px; font-family: 'SF Mono', monospace; color: #0078d4; }

/* ── DIFFICULTÉS ── */
.diff-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.diff-card { background: #fff; border: 1px solid var(--border-light); border-radius: var(--radius); padding: 24px; transition: var(--transition); }
.diff-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-sm); }
.diff-icon { font-size: 1.5rem; margin-bottom: 12px; }
.diff-card h3 { font-size: 14px; font-weight: 600; color: var(--text); margin-bottom: 8px; }
.diff-card p { font-size: 13px; color: var(--text-3); line-height: 1.6; margin-bottom: 12px; }
.diff-arrow { font-size: 1.2rem; color: #fbbf24; margin-bottom: 8px; }
.diff-solution { font-size: 13px; color: #059669; font-weight: 500; background: #f0fdf4; border: 1px solid #bbf7d0; border-radius: var(--radius-sm); padding: 10px 12px; line-height: 1.55; }

/* ── STACK ── */
.stack-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); gap: 12px; }
.stack-item { background: #fff; border: 1px solid var(--border-light); border-radius: var(--radius-sm); padding: 20px 12px; text-align: center; transition: var(--transition); }
.stack-item:hover { transform: translateY(-3px); box-shadow: var(--shadow-sm); border-color: rgba(251,191,36,0.2); }
.stack-icon { font-size: 1.6rem; margin-bottom: 8px; }
.stack-name { font-size: 12px; font-weight: 600; color: var(--text); margin-bottom: 3px; }
.stack-type { font-size: 11px; color: var(--text-3); }

/* ── LIGHTBOX ── */
.lightbox { display: none; position: fixed; inset: 0; z-index: 3000; background: rgba(0,0,0,0.9); backdrop-filter: blur(12px); align-items: center; justify-content: center; padding: 40px; cursor: zoom-out; }
.lightbox.open { display: flex; }
.lightbox-close { position: fixed; top: 20px; right: 20px; width: 40px; height: 40px; background: rgba(255,255,255,0.15); border: none; color: #fff; font-size: 1rem; border-radius: 50%; cursor: pointer; display: flex; align-items: center; justify-content: center; font-family: var(--font); }
.lightbox-close:hover { background: rgba(255,255,255,0.3); }
.lightbox-content { max-width: 1100px; width: 100%; cursor: default; }
.lightbox-content img { width: 100%; border-radius: var(--radius); }
.lightbox-caption { text-align: center; color: rgba(255,255,255,0.6); font-size: 13px; margin-top: 14px; }

/* ── RESPONSIVE ── */
@media (max-width: 1000px) {
  .oi-grid { grid-template-columns: 1fr 1fr; }
  .gpo-grid { grid-template-columns: 1fr; }
  .gpo-card { grid-template-columns: 1fr; }
  .gpo-card-img { height: 200px; }
}
@media (max-width: 900px) {
  .project-hero-inner { grid-template-columns: 1fr; }
  .project-hero-visual { order: -1; }
  .context-2col { grid-template-columns: 1fr; }
  .landmz-block { grid-template-columns: 1fr; }
  .landmz-info { padding: 20px; }
  .back-inner { padding: 10px 20px; }
  .pblock-inner { padding: 0 20px; }
  .oi-hero { padding: 60px 20px 40px; }
}
@media (max-width: 600px) {
  .oi-grid { grid-template-columns: 1fr; }
  .stack-grid { grid-template-columns: repeat(3, 1fr); }
  .diff-grid { grid-template-columns: 1fr; }
}