/* =========================================================
   VortexDesk — Design System
   Palette sobria: petrol, grigi, accent rame.
   Typography: Inter (body) + Sora (wordmark) + JetBrains Mono.
   ========================================================= */

:root{
  /* Colors — light */
  --bg: #ffffff;
  --bg-subtle: #f5f7fa;
  --bg-section: #fafbfc;
  --card: #ffffff;
  --fg: #0f1a24;
  --muted: #5b6876;
  --line: #dfe4ea;
  --line-soft: #eceff3;

  --petrol: #0f2a3f;
  --petrol-2: #173a55;
  --accent: #c86a1f;   /* rame/arancione sobrio */
  --accent-2: #a85614;
  --ok: #2d6a4f;
  --ok-bg: rgba(45,106,79,.08);
  --warn: #9c6b00;
  --neg: #b02a37;

  --grad-logo: linear-gradient(135deg, #0f2a3f 0%, #1c4b6e 45%, #c86a1f 100%);

  /* Rhythm */
  --radius: 10px;
  --radius-sm: 6px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 2px rgba(15,26,36,.06);
  --shadow: 0 4px 12px rgba(15,26,36,.08);
  --shadow-lg: 0 20px 50px rgba(15,26,36,.12);

  /* Fonts */
  --font-sans: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --font-logo: 'Sora', system-ui, sans-serif;
}

[data-theme="dark"]{
  --bg: #0a141c;
  --bg-subtle: #0f1d28;
  --bg-section: #0d1a24;
  --card: #122030;
  --fg: #eaf0f6;
  --muted: #8c9aac;
  --line: #1e2f42;
  --line-soft: #182635;

  --petrol: #0f2a3f;
  --petrol-2: #1c4766;
  --accent: #e0854a;
  --accent-2: #c86a1f;

  --grad-logo: linear-gradient(135deg, #4a8ac0 0%, #7aaed3 40%, #e0854a 100%);

  --shadow-sm: 0 1px 2px rgba(0,0,0,.35);
  --shadow: 0 4px 14px rgba(0,0,0,.4);
  --shadow-lg: 0 20px 50px rgba(0,0,0,.55);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--fg);
  font:15px/1.55 var(--font-sans);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
.container{max-width:1200px;margin:0 auto;padding:0 28px}

/* =========================================================
   TYPOGRAPHY
   ========================================================= */
h1,h2,h3,h4{font-family:var(--font-sans);letter-spacing:-.02em;margin:0 0 .4em}
h1{font-size:clamp(2rem, 4vw + 0.5rem, 3.4rem);font-weight:700;line-height:1.05}
h2{font-size:clamp(1.6rem, 2.4vw + .5rem, 2.4rem);font-weight:700;line-height:1.15}
h3{font-size:1.2rem;font-weight:600;line-height:1.3}
h4{font-size:1rem;font-weight:600}
p{margin:0 0 1em;color:var(--fg)}
p.lead{font-size:1.12rem;color:var(--muted);max-width:62ch}
.eyebrow{display:inline-block;font:12px/1 var(--font-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin-bottom:14px}
.eyebrow-muted{color:var(--muted)}
code, .mono{font-family:var(--font-mono);font-size:.92em}

/* =========================================================
   WORDMARK LOGO — VORTEXDESK (stile Sora 700, gradient)
   ========================================================= */
.wordmark{
  font-family: var(--font-logo);
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: none;
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
  line-height: 1;
  user-select: none;
}
.wordmark .wm-main{
  background: var(--grad-logo);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.wordmark .wm-dot{
  color: var(--accent);
  -webkit-text-fill-color: var(--accent);
  margin: 0 1px;
}
.wordmark-sm{font-size:18px}
.wordmark-lg{font-size:clamp(28px, 3.4vw, 44px)}
.wordmark-xl{font-size:clamp(44px, 7vw, 92px)}

/* =========================================================
   NAVBAR
   ========================================================= */
.nav{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.82);
  backdrop-filter:saturate(1.2) blur(10px);
  -webkit-backdrop-filter:saturate(1.2) blur(10px);
  border-bottom:1px solid var(--line-soft);
}
[data-theme="dark"] .nav{background:rgba(10,20,28,.82)}
.nav-inner{display:flex;align-items:center;gap:16px;height:64px;flex-wrap:nowrap}
.nav-brand{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.nav-brand-sub{font:11px/1 var(--font-mono);color:var(--muted);padding:4px 8px;border:1px solid var(--line);border-radius:999px;white-space:nowrap}
.nav-links{display:flex;gap:2px;margin-left:auto;flex-wrap:nowrap;min-width:0}
.nav-link{padding:7px 10px;border-radius:6px;color:var(--muted);font-size:13.5px;font-weight:500;white-space:nowrap;transition:color .15s, background .15s}
.nav-link:hover,.nav-link.active{color:var(--fg);background:var(--bg-subtle)}
.nav-actions{display:flex;gap:6px;align-items:center;flex:0 0 auto}
.nav-actions .btn{padding:8px 14px;font-size:13.5px}
.theme-toggle{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 12px;border:1px solid var(--line);border-radius:999px;
  background:transparent;color:var(--muted);font-size:13px;cursor:pointer;
  transition:all .15s;
}
.theme-toggle:hover{border-color:var(--accent);color:var(--accent)}
.lang-switch{display:inline-flex;align-items:center;justify-content:center;min-width:36px;height:32px;padding:0 10px;border:1px solid var(--line);border-radius:6px;background:var(--card);color:var(--muted);font:11px var(--font-mono);letter-spacing:.1em;text-decoration:none;transition:border-color .15s,color .15s}
.lang-switch:hover{border-color:var(--accent);color:var(--accent)}

/* Schermi medi: compattiamo ulteriormente prima del break mobile */
@media (max-width: 1200px){
  .nav-inner{gap:12px}
  .nav-link{padding:7px 8px;font-size:13px}
  .nav-actions{gap:4px}
  .nav-brand-sub{display:none}
}
@media (max-width: 1040px){
  .nav-actions .btn-ghost{display:none} /* nascondiamo Accedi, resta solo CTA primaria */
  .lang-switch{display:none}
}
@media (max-width: 860px){
  .nav-inner{height:auto;flex-wrap:wrap;padding:10px 0}
  .nav-links{margin-left:0;order:3;width:100%;justify-content:flex-start;padding-top:6px;border-top:1px solid var(--line-soft);flex-wrap:wrap}
  .nav-link{padding:6px 8px}
  .nav-actions{margin-left:auto}
  .nav-actions .btn-ghost{display:inline-flex}
  .lang-switch{display:inline-flex}
}

/* =========================================================
   BUTTONS
   ========================================================= */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 20px;border-radius:8px;font:500 14px var(--font-sans);
  cursor:pointer;transition:all .15s;text-decoration:none;border:1px solid transparent;
  white-space:nowrap;
}
.btn-primary{background:var(--petrol);color:#fff;border-color:var(--petrol)}
.btn-primary:hover{background:var(--accent);border-color:var(--accent)}
[data-theme="dark"] .btn-primary{background:var(--accent);border-color:var(--accent)}
[data-theme="dark"] .btn-primary:hover{background:#e89a64;border-color:#e89a64}
.btn-ghost{background:transparent;color:var(--fg);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-arrow{transition:transform .15s}
.btn:hover .btn-arrow{transform:translateX(3px)}

/* =========================================================
   SECTIONS & LAYOUT
   ========================================================= */
section{padding:72px 0}
.section-alt{background:var(--bg-section);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.section-dark{background:var(--petrol);color:#eaf0f6}
.section-dark h2,.section-dark h3,.section-dark h4{color:#fff}
.section-dark .eyebrow{color:#e0854a}
.section-dark p{color:#bccbd9}
.section-dark .lead{color:#a9b7c6}
.section-head{max-width:760px;margin-bottom:40px}
.section-head p{color:var(--muted)}

/* =========================================================
   HERO
   ========================================================= */
.hero{padding:88px 0 64px;position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns: 1.05fr .95fr;gap:48px;align-items:center}
.hero-copy .eyebrow{color:var(--accent)}
.hero h1{margin-top:0}
.hero h1 .em{background:var(--grad-logo);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent}
.hero-ctas{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}
.hero-meta{display:flex;gap:20px;margin-top:28px;flex-wrap:wrap;color:var(--muted);font-size:13px}
.hero-meta span{display:inline-flex;align-items:center;gap:6px}
.hero-meta .dot{width:6px;height:6px;border-radius:999px;background:var(--ok);display:inline-block}

.hero-visual{
  position:relative;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:var(--card);
  box-shadow:var(--shadow-lg);
  padding:16px;
  overflow:hidden;
}
.hv-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:10px;border-bottom:1px solid var(--line-soft);margin-bottom:12px}
.hv-title{font-size:13px;font-weight:600}
.hv-sub{font:11px var(--font-mono);color:var(--muted)}
.hv-module-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.hv-chip{border:1px solid var(--line);border-radius:8px;padding:10px 12px;display:flex;flex-direction:column;gap:4px;background:var(--bg-subtle)}
.hv-chip strong{font-size:13px}
.hv-chip span{font:11px var(--font-mono);color:var(--muted)}
.hv-chip.is-live{border-color:var(--accent);background:rgba(200,106,31,.06)}
.hv-chip.is-live strong{color:var(--accent)}

@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero{padding:56px 0 40px}
}

/* =========================================================
   PILLARS (pilastri comuni)
   ========================================================= */
.pillars{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:32px}
.pillar{
  padding:22px;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--card);transition:border-color .15s, transform .15s;
}
.pillar:hover{border-color:var(--accent)}
.pillar-ic{
  width:36px;height:36px;border-radius:8px;background:var(--bg-subtle);
  display:flex;align-items:center;justify-content:center;margin-bottom:12px;color:var(--accent);
}
.pillar h3{font-size:1rem;margin-bottom:6px}
.pillar p{font-size:13.5px;color:var(--muted);margin:0}
@media (max-width:900px){.pillars{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.pillars{grid-template-columns:1fr}}

/* =========================================================
   MODULES GRID
   ========================================================= */
.modules{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:40px}
.module-card{
  position:relative;
  padding:28px;border:1px solid var(--line);border-radius:var(--radius-lg);
  background:var(--card);transition:all .18s;
  display:flex;flex-direction:column;min-height:280px;
  overflow:hidden;
}
.module-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:4px;
  background:var(--grad-logo);opacity:.7;
}
.module-card:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:var(--shadow)}
.module-status{
  position:absolute;top:16px;right:16px;
  font:10px var(--font-mono);letter-spacing:.1em;text-transform:uppercase;
  padding:3px 8px;border-radius:999px;
}
.module-status.live{background:var(--ok-bg);color:var(--ok)}
.module-status.soon{background:var(--bg-subtle);color:var(--muted);border:1px solid var(--line)}
.module-kicker{font:11px var(--font-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:8px}
.module-card h3{font-size:1.3rem;margin-bottom:8px}
.module-card h3 .wordmark{font-size:inherit}
.module-card .m-desc{color:var(--muted);font-size:14px;flex:1}
.module-card ul{list-style:none;padding:0;margin:14px 0 16px;display:flex;flex-direction:column;gap:4px}
.module-card ul li{font-size:13px;color:var(--muted);padding-left:18px;position:relative}
.module-card ul li::before{content:'';position:absolute;left:0;top:8px;width:8px;height:1px;background:var(--accent)}
.module-link{color:var(--accent);font-size:13px;font-weight:500;margin-top:auto}
.module-link:hover{text-decoration:underline}

@media (max-width:1000px){.modules{grid-template-columns:1fr 1fr}}
@media (max-width:640px){.modules{grid-template-columns:1fr}}

/* =========================================================
   FEATURES GRID (generica)
   ========================================================= */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:32px}
.feat{
  padding:22px;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--card);
}
.feat-ic{width:32px;height:32px;border-radius:8px;background:var(--bg-subtle);color:var(--accent);display:flex;align-items:center;justify-content:center;margin-bottom:12px}
.feat h4{margin-bottom:6px;font-size:1rem}
.feat p{margin:0;color:var(--muted);font-size:13.5px}
@media (max-width:900px){.features{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.features{grid-template-columns:1fr}}

/* =========================================================
   TWO-COL LAYOUT (copy + visual)
   ========================================================= */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.two-col.reverse .two-col-copy{order:2}
.two-col.reverse .two-col-visual{order:1}
.two-col-copy .eyebrow{margin-bottom:10px}
.two-col-visual{
  border:1px solid var(--line);border-radius:var(--radius-lg);
  background:var(--card);box-shadow:var(--shadow);padding:18px;
}
@media (max-width:900px){.two-col{grid-template-columns:1fr;gap:24px}.two-col.reverse .two-col-copy,.two-col.reverse .two-col-visual{order:initial}}

/* =========================================================
   MODULE MOCK PREVIEW (per ogni settore)
   ========================================================= */
.mock-report{background:var(--card);border-radius:var(--radius);overflow:hidden}
.mock-head{display:flex;align-items:center;justify-content:space-between;padding:10px 14px;border-bottom:1px solid var(--line-soft);background:var(--bg-subtle)}
.mock-head-title{font-size:13px;font-weight:600}
.mock-head-sub{font:11px var(--font-mono);color:var(--muted)}
.mock-kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line-soft)}
.mock-kpi{padding:12px;background:var(--card);display:flex;flex-direction:column;gap:4px}
.mock-kpi-lbl{font:10px var(--font-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.mock-kpi-val{font-size:17px;font-weight:600}
.mock-kpi-delta{font:11px var(--font-mono)}
.mock-kpi-delta.pos{color:var(--ok)}
.mock-kpi-delta.neg{color:var(--neg)}
.mock-body{padding:14px}
.mock-commentary{font-size:12.5px;line-height:1.55;color:var(--muted);padding-top:8px;border-top:1px dashed var(--line-soft);margin-top:10px}
.mock-commentary strong{color:var(--fg)}

/* Mock chart (svg container) */
.mock-svg{width:100%;height:130px;display:block;margin-top:8px}

/* =========================================================
   CTA BAND
   ========================================================= */
.cta-band{background:var(--petrol);color:#fff;padding:56px 0}
.cta-band-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-band h2{color:#fff;margin:0}
.cta-band p{color:#bccbd9;margin:8px 0 0;max-width:52ch}
.cta-band .btn-primary{background:var(--accent);border-color:var(--accent)}
.cta-band .btn-primary:hover{background:#e09d65;border-color:#e09d65}
.cta-band .btn-ghost{color:#fff;border-color:rgba(255,255,255,.25)}
.cta-band .btn-ghost:hover{border-color:#fff;color:#fff}

/* =========================================================
   FOOTER
   ========================================================= */
.foot{background:var(--bg-section);border-top:1px solid var(--line);padding:56px 0 28px;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.3fr .7fr .7fr .7fr;gap:32px}
.foot-col h4{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-weight:600;margin-bottom:14px}
.foot-col a{display:block;color:var(--muted);font-size:13.5px;padding:3px 0;transition:color .15s}
.foot-col a:hover{color:var(--accent)}
.foot-brand-desc{color:var(--muted);font-size:13px;max-width:36ch;margin-top:10px}
.foot-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:28px;margin-top:28px;border-top:1px solid var(--line);color:var(--muted);font-size:12px;flex-wrap:wrap;gap:10px}
.foot-by{color:var(--muted);opacity:.7;font-size:11px;letter-spacing:.02em}
@media (max-width:800px){.foot-grid{grid-template-columns:1fr 1fr;gap:24px}}
@media (max-width:520px){.foot-grid{grid-template-columns:1fr}}

/* =========================================================
   HELPERS
   ========================================================= */
.text-muted{color:var(--muted)}
.text-center{text-align:center}
.tag{display:inline-block;padding:3px 10px;border-radius:999px;font:11px var(--font-mono);letter-spacing:.08em;border:1px solid var(--line);color:var(--muted);background:var(--bg-subtle)}
.tag.tag-live{border-color:var(--ok);color:var(--ok);background:var(--ok-bg)}
.tag.tag-accent{border-color:var(--accent);color:var(--accent);background:rgba(200,106,31,.08)}

/* =========================================================
   AI ACCENT (viola) + SHOWCASE SPRINT 4
   ========================================================= */
:root{
  --ai: #6d4aff;
  --ai-soft: #ede8ff;
  --ai-border: #d4c9ff;
  --ai-ink: #3d2a99;
}
body[data-theme="dark"]{
  --ai: #9f85ff;
  --ai-soft: #241a4a;
  --ai-border: #3a2d73;
  --ai-ink: #cfc1ff;
}
.tag.tag-ai{border-color:var(--ai-border);color:var(--ai-ink);background:var(--ai-soft)}
body[data-theme="dark"] .tag.tag-ai{color:var(--ai)}

.shot-gallery{display:grid;grid-template-columns:1.35fr 1fr;gap:18px;margin-top:32px}
.shot-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;display:flex;flex-direction:column}
.shot-card.is-wide{grid-column:1 / -1}
.shot-card .shot-head{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--line-soft);background:var(--bg-subtle)}
.shot-card .shot-head-title{font-size:13px;font-weight:600;color:var(--fg)}
.shot-card .shot-head-sub{font:11px var(--font-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.shot-card img{display:block;width:100%;height:auto;background:var(--bg-section)}
.shot-card .shot-caption{padding:12px 16px 14px;border-top:1px solid var(--line-soft);color:var(--muted);font-size:13px;line-height:1.55}
.shot-card .shot-caption strong{color:var(--fg)}
@media (max-width:900px){.shot-gallery{grid-template-columns:1fr}}

/* =========================================================
   ANCHOR SCROLL OFFSET (fixed navbar)
   ========================================================= */
[id]{scroll-margin-top:88px}