/* ══════════════════════════════════════════════════════════════════════════
   CASE STUDY — stili dedicati (usano le variabili di style.css)
   ══════════════════════════════════════════════════════════════════════════ */

/* ── PAGE HERO ── */
.cs-page-hero {
  position: relative; background: var(--navy);
  padding: 9.5rem 0 4.5rem; overflow: hidden;
}
.cs-page-hero::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(circle at 15% 20%, rgba(0,153,204,.18), transparent 55%),
    radial-gradient(circle at 85% 80%, rgba(91,33,182,.16), transparent 55%);
  pointer-events: none;
}
.cs-breadcrumb {
  position: relative; z-index: 1;
  font-size: .8rem; color: rgba(255,255,255,.5); margin-bottom: 1.5rem;
}
.cs-breadcrumb a { color: rgba(255,255,255,.7); }
.cs-breadcrumb a:hover { color: #fff; }
.cs-page-hero .container { position: relative; z-index: 1; }
.cs-page-hero h1 {
  font-size: clamp(2rem, 4.2vw, 3.1rem); font-weight: 800;
  letter-spacing: -.03em; line-height: 1.15; color: #fff;
  max-width: 820px; margin-bottom: 1.5rem;
}
.cs-page-hero h1 em { font-style: normal; color: var(--cyan-lt); }
.cs-page-hero-sub {
  font-size: 1.1rem; line-height: 1.75; color: rgba(255,255,255,.72);
  max-width: 680px; margin-bottom: 2rem;
}
.cs-tag-row { display: flex; flex-wrap: wrap; gap: .6rem; margin-bottom: 2.5rem; }
.cs-tag {
  display: inline-flex; align-items: center;
  padding: .4rem 1rem; border-radius: 100px;
  border: 1px solid rgba(0,212,255,.3); background: rgba(0,212,255,.07);
  font-size: .78rem; color: #00D4FF; letter-spacing: .04em;
}
.cs-page-hero .hero-stats { margin: 0; }

/* ── SECTION HELPERS ── */
.cs-section { padding: 5.5rem 0; }
.cs-section--dark { background: var(--navy); color: rgba(255,255,255,.85); }
.cs-section--dark .section-title,
.cs-section--dark h2 { color: #fff; }
.cs-section--alt { background: var(--bg-light); }
.cs-eyebrow {
  font-family: 'JetBrains Mono', monospace; font-size: .75rem;
  letter-spacing: .1em; text-transform: uppercase; color: var(--cyan);
  margin-bottom: .75rem; font-weight: 600;
}
.cs-section--dark .cs-eyebrow { color: #00D4FF; }
.cs-h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 800; letter-spacing: -.02em; line-height: 1.2; margin-bottom: 1rem; color: var(--text); }
.cs-h2 span { color: var(--cyan); }
.cs-section--dark .cs-h2 span { color: #00D4FF; }
.cs-lede { color: var(--muted); font-size: 1.02rem; line-height: 1.75; max-width: 680px; }
.cs-section--dark .cs-lede { color: rgba(255,255,255,.65); }

/* ── 02 CONTESTO ── */
.cs-context-tag {
  display: inline-block; padding: .4rem 1rem; border-radius: 100px;
  background: var(--bg-tint); border: 1px solid #DBEAFE; color: var(--cyan);
  font-size: .8rem; font-weight: 600; margin-bottom: 1.5rem;
}
.cs-quote {
  border-left: 3px solid var(--cyan); padding: 1.25rem 1.75rem;
  background: var(--bg-light); border-radius: 0 12px 12px 0;
  font-size: 1.15rem; font-weight: 600; color: var(--text);
  margin: 1.75rem 0; line-height: 1.6;
}
.cs-closing { color: var(--muted); font-style: italic; }

/* ── 03 PROBLEMA ── */
.cs-problem-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; margin-top: 2.5rem; }
.cs-problem-card {
  background: #fff; border: 1.5px solid var(--border); border-radius: 16px;
  padding: 1.75rem;
}
.cs-problem-num { font-family: 'JetBrains Mono', monospace; font-size: .78rem; color: var(--cyan); letter-spacing: .08em; margin-bottom: .85rem; }
.cs-problem-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: .65rem; color: var(--text); }
.cs-problem-card p { font-size: .9rem; color: var(--muted); line-height: 1.65; }

/* ── 04 PRINCIPIO — DIAGRAMMA A LIVELLI ── */
.cs-arch-diagram { max-width: 780px; margin: 2.5rem auto 0; }
.cs-arch-level {
  background: #fff; border: 1.5px solid var(--border); border-radius: 12px;
  padding: 1rem 1.25rem; text-align: center; font-weight: 600; color: var(--text); font-size: .92rem;
}
.cs-arch-level--accent {
  background: linear-gradient(135deg, #0099CC, #0066AA); color: #fff; border: none;
  box-shadow: 0 8px 24px rgba(0,153,204,.25);
}
.cs-arch-top { display: grid; grid-template-columns: repeat(3, 1fr); gap: .85rem; }
.cs-arch-top .cs-arch-level { font-size: .85rem; padding: .9rem 1rem; }
.cs-arch-sep {
  text-align: center; font-family: 'JetBrains Mono', monospace; font-size: .72rem;
  color: var(--muted); letter-spacing: .04em; padding: .6rem 0; position: relative;
}
.cs-arch-sep::before {
  content: ''; position: absolute; left: 50%; top: 0; bottom: 0;
  width: 1.5px; background: var(--border); transform: translateX(-50%); z-index: -1;
}
.cs-arch-points { margin-top: 2.25rem; display: grid; gap: .85rem; max-width: 680px; margin-left: auto; margin-right: auto; }
.cs-arch-point {
  display: flex; gap: .75rem; align-items: flex-start;
  font-size: .92rem; color: var(--text-mid); line-height: 1.6;
}
.cs-arch-point::before { content: '→'; color: var(--cyan); font-weight: 700; flex-shrink: 0; }

/* ── 05 ARCHITETTURA 4 MODULI ── */
.cs-module-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; margin-top: 2.5rem; }
.cs-module-card {
  background: #fff; border: 1.5px solid var(--border); border-radius: 16px; padding: 1.75rem;
}
.cs-module-num { font-family: 'JetBrains Mono', monospace; font-size: .78rem; color: var(--cyan); letter-spacing: .08em; margin-bottom: .75rem; }
.cs-module-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: .65rem; color: var(--text); }
.cs-module-card p { font-size: .9rem; color: var(--muted); line-height: 1.65; margin-bottom: 1.1rem; }
.cs-module-budget { display: flex; align-items: center; gap: .75rem; }
.cs-budget-bar { flex: 1; height: 6px; background: var(--border); border-radius: 100px; overflow: hidden; }
.cs-budget-fill { height: 100%; background: linear-gradient(90deg, #0099CC, #00D4FF); border-radius: 100px; }
.cs-budget-val { font-family: 'JetBrains Mono', monospace; font-size: .82rem; font-weight: 700; color: var(--cyan); white-space: nowrap; }
.cs-module-note { margin-top: 1.5rem; font-size: .85rem; color: var(--muted); text-align: center; }

/* ── 06 GOVERNANCE ── */
.cs-gov-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; margin-top: 2.5rem; }
.cs-gov-step {
  background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.1);
  border-radius: 16px; padding: 1.75rem; position: relative;
}
.cs-gov-step-num {
  font-family: 'JetBrains Mono', monospace; font-size: .78rem; color: #00D4FF;
  letter-spacing: .08em; margin-bottom: .85rem;
}
.cs-gov-step h3 { font-size: 1.05rem; font-weight: 700; color: #fff; margin-bottom: .65rem; }
.cs-gov-step p { font-size: .88rem; color: rgba(255,255,255,.62); line-height: 1.65; }
.cs-gov-box {
  margin-top: 2.25rem; padding: 1.5rem 1.75rem; border-radius: 14px;
  background: rgba(0,212,255,.07); border: 1px solid rgba(0,212,255,.25);
  font-size: .92rem; color: rgba(255,255,255,.82); line-height: 1.65; max-width: 780px;
}

/* ── 07 AGENTI ── */
.cs-agent-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; margin-top: 2.5rem; }
.cs-agent-card {
  background: #fff; border: 1.5px solid var(--border); border-radius: 16px; padding: 1.75rem;
}
.cs-agent-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: .65rem; color: var(--text); display: flex; align-items: center; gap: .6rem; }
.cs-agent-icon {
  width: 34px; height: 34px; border-radius: 9px; flex-shrink: 0;
  background: var(--bg-light); color: var(--cyan); display: flex; align-items: center; justify-content: center;
  font-family: 'JetBrains Mono', monospace; font-weight: 700; font-size: .8rem;
}
.cs-agent-card p { font-size: .9rem; color: var(--muted); line-height: 1.65; margin-bottom: .85rem; }
.cs-agent-note {
  font-size: .82rem; color: var(--cyan); font-style: italic; padding-top: .85rem;
  border-top: 1px dashed var(--border);
}

/* ── 08 TRACCIABILITÀ ── */
.cs-chain { display: flex; align-items: center; justify-content: center; gap: .75rem; flex-wrap: wrap; margin: 2.5rem 0; }
.cs-chain-node {
  padding: .85rem 1.4rem; border-radius: 100px; background: #fff;
  border: 1.5px solid var(--border); font-size: .88rem; font-weight: 600; color: var(--text-mid);
}
.cs-chain-node--main {
  background: linear-gradient(135deg, #0099CC, #0066AA); color: #fff; border: none;
  box-shadow: 0 8px 24px rgba(0,153,204,.3); font-family: 'JetBrains Mono', monospace; letter-spacing: .04em;
}
.cs-chain-arrow { color: var(--muted); font-size: 1.1rem; }
.cs-chain-boxes { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; margin-top: 1rem; }
.cs-chain-box {
  background: var(--bg-light); border: 1px solid var(--border); border-radius: 14px; padding: 1.5rem;
}
.cs-chain-box h4 { font-size: .95rem; font-weight: 700; color: var(--text); margin-bottom: .6rem; }
.cs-chain-box p { font-size: .88rem; color: var(--muted); line-height: 1.6; }
.cs-chain-note { margin-top: 1.5rem; font-size: .85rem; color: var(--muted); text-align: center; font-style: italic; }

/* ── 09 KPI TABLE ── */
.cs-kpi-table { width: 100%; border-collapse: collapse; margin-top: 2.5rem; background: #fff; border-radius: 14px; overflow: hidden; border: 1.5px solid var(--border); }
.cs-kpi-table th {
  text-align: left; font-family: 'JetBrains Mono', monospace; font-size: .72rem;
  letter-spacing: .08em; text-transform: uppercase; color: var(--muted);
  background: var(--bg-light); padding: .9rem 1.25rem; border-bottom: 1.5px solid var(--border);
}
.cs-kpi-table td { padding: 1rem 1.25rem; border-bottom: 1px solid var(--border); font-size: .92rem; color: var(--text-mid); }
.cs-kpi-table tr:last-child td { border-bottom: none; }
.cs-kpi-table td:last-child, .cs-kpi-table th:last-child { text-align: right; }
.cs-kpi-val { font-family: 'JetBrains Mono', monospace; font-weight: 700; color: var(--cyan); }
.cs-kpi-note { margin-top: 1.25rem; font-size: .82rem; color: var(--muted); font-style: italic; }

/* ── 10 BUSINESS CASE TILES ── */
.cs-tile-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; margin-top: 2.5rem; }
.cs-tile {
  background: #fff; border: 1.5px solid var(--border); border-radius: 16px;
  padding: 1.75rem 1.25rem; text-align: center;
}
.cs-tile--featured { background: linear-gradient(135deg, #0099CC, #0066AA); border: none; color: #fff; }
.cs-tile-val { font-family: 'JetBrains Mono', monospace; font-size: 2rem; font-weight: 700; color: var(--cyan); display: block; margin-bottom: .6rem; }
.cs-tile--featured .cs-tile-val { color: #fff; }
.cs-tile-label { font-size: .85rem; color: var(--muted); line-height: 1.5; }
.cs-tile--featured .cs-tile-label { color: rgba(255,255,255,.85); }
.cs-tile-close { text-align: center; font-size: 1.25rem; font-weight: 700; color: var(--text); margin-top: 2.5rem; letter-spacing: -.01em; }

/* ── 11 GRAFICO A BARRE ── */
.cs-bar-chart { margin-top: 2.5rem; display: grid; gap: .85rem; max-width: 780px; margin-left: auto; margin-right: auto; }
.cs-bar-row { display: grid; grid-template-columns: 190px 1fr 55px; align-items: center; gap: 1rem; }
.cs-bar-label { font-size: .85rem; color: var(--text-mid); text-align: right; }
.cs-bar-track { height: 14px; background: var(--bg-light); border-radius: 100px; overflow: hidden; }
.cs-bar-fill { height: 100%; background: linear-gradient(90deg, #0099CC, #00D4FF); border-radius: 100px; }
.cs-bar-val { font-family: 'JetBrains Mono', monospace; font-size: .85rem; font-weight: 700; color: var(--text); }
.cs-bar-summary {
  max-width: 780px; margin: 2rem auto 0; padding: 1.25rem 1.5rem;
  background: var(--bg-light); border-radius: 12px; text-align: center;
  font-size: .9rem; color: var(--text-mid);
}
.cs-check-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: .75rem; max-width: 780px; margin: 1.75rem auto 0; }
.cs-check-item { display: flex; gap: .6rem; align-items: flex-start; font-size: .88rem; color: var(--text-mid); }
.cs-check-item::before { content: '✓'; color: var(--green); font-weight: 700; flex-shrink: 0; }

/* ── 12 GANTT ── */
.cs-gantt { margin-top: 2.5rem; display: grid; gap: .6rem; }
.cs-gantt-row { display: grid; grid-template-columns: 240px 1fr; align-items: center; gap: 1rem; }
.cs-gantt-label { font-size: .85rem; color: var(--text-mid); font-weight: 600; }
.cs-gantt-track { position: relative; height: 26px; background: var(--bg-light); border-radius: 8px; }
.cs-gantt-bar {
  position: absolute; top: 3px; bottom: 3px; border-radius: 6px;
  background: linear-gradient(90deg, #0099CC, #00D4FF);
  display: flex; align-items: center; padding: 0 .6rem;
  font-family: 'JetBrains Mono', monospace; font-size: .7rem; color: #fff; white-space: nowrap;
}
.cs-gantt-scale { display: grid; grid-template-columns: 240px 1fr; gap: 1rem; margin-bottom: .3rem; }
.cs-gantt-scale-track { display: grid; grid-template-columns: repeat(12, 1fr); font-family: 'JetBrains Mono', monospace; font-size: .68rem; color: var(--muted); text-align: center; }
.cs-gantt-points { margin-top: 2rem; display: grid; gap: .75rem; max-width: 780px; }
.cs-gantt-points .cs-arch-point::before { content: '•'; font-size: 1.2rem; }

/* ── 14 CTA — riusa .cta-finale del sito, override minimi ── */
.cs-cta-note { margin-top: 1.25rem; padding: 1rem 1.25rem; background: rgba(0,212,255,.07); border: 1px solid rgba(0,212,255,.25); border-radius: 12px; font-size: .85rem; color: rgba(255,255,255,.8); max-width: 640px; margin-left: auto; margin-right: auto; text-align: left; }

/* ── NOTA METODOLOGICA ── */
.cs-method-note { padding: 2rem 0 3rem; background: var(--bg-light); font-size: .78rem; color: var(--muted); line-height: 1.7; text-align: center; }
.cs-method-note .container { max-width: 780px; }

/* ── RESPONSIVE ── */
@media (max-width: 860px) {
  .cs-problem-grid, .cs-module-grid, .cs-agent-grid, .cs-gov-steps, .cs-chain-boxes, .cs-check-grid { grid-template-columns: 1fr; }
  .cs-tile-grid { grid-template-columns: repeat(2, 1fr); }
  .cs-arch-top { grid-template-columns: 1fr; }
  .cs-bar-row { grid-template-columns: 110px 1fr 45px; }
  .cs-bar-label { font-size: .78rem; }
  .cs-gantt-row, .cs-gantt-scale { grid-template-columns: 110px 1fr; }
  .cs-gantt-label { font-size: .78rem; }
}
@media (max-width: 640px) {
  .cs-tile-grid { grid-template-columns: 1fr; }
  .cs-kpi-table thead { display: none; }
  .cs-kpi-table, .cs-kpi-table tbody, .cs-kpi-table tr, .cs-kpi-table td { display: block; width: 100%; }
  .cs-kpi-table tr { padding: 1rem 1.25rem; border-bottom: 1px solid var(--border); }
  .cs-kpi-table td { border: none; padding: .2rem 0; display: flex; justify-content: space-between; gap: 1rem; }
  .cs-kpi-table td::before { content: attr(data-label); font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); font-family: 'JetBrains Mono', monospace; }
  .cs-kpi-table td:last-child { text-align: right; }
  .cs-chain { flex-direction: column; }
  .cs-chain-arrow { transform: rotate(90deg); }
}