/*=========================================================
= INVIRTUS — LANDING PREMIUM BTP
= Design system: charte inVirtus (bleu -> vert/teal, fond clair)
=========================================================*/

/*---------------------------------------------------------
  TOKENS
---------------------------------------------------------*/
:root {
    --bg:            #ffffff;
    --bg-panel:      #f2f7f9;
    --surface:       #f6fafb;
    --surface-2:     #eaf2f4;
    --line:          rgba(4,48,77,.10);
    --line-strong:   rgba(4,48,77,.20);

    --ink:           #005d9c;
    --ink-dim:       #4b5c6b;
    --ink-faint:     #6b7d8c;

    --orange:        #09b5aa;
    --orange-soft:   rgba(9,181,170,.12);
    --red:           #d92d23;
    --red-soft:      rgba(217,45,35,.10);
    --blue:          #005d9c;
    --blue-soft:     rgba(0,93,156,.10);
    --green:         #16a34a;
    --green-soft:    rgba(22,163,74,.12);

    --radius-lg:     28px;
    --radius-md:     18px;
    --radius-sm:     12px;

    --ease:          cubic-bezier(.16,.8,.24,1);
    --max:           1360px;

    --font-display:  'Manrope', sans-serif;
    --font-body:     'Inter', sans-serif;
}

/*---------------------------------------------------------
  RESET
---------------------------------------------------------*/
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
}

body {
    background: var(--bg);
    color: var(--ink);
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }

:focus-visible {
    outline: 2px solid var(--orange);
    outline-offset: 3px;
    border-radius: 4px;
}

.container { width: min(92%, var(--max)); margin: 0 auto; }

/*---------------------------------------------------------
  TYPOGRAPHY
---------------------------------------------------------*/
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 800; letter-spacing: -.03em; color: var(--ink); }
h1 { font-size: clamp(42px, 6.4vw, 92px); line-height: .98; }
h2 { font-size: clamp(30px, 4vw, 58px); line-height: 1.06; }
h3 { font-size: clamp(19px, 2vw, 26px); line-height: 1.2; }

p { color: var(--ink-dim); font-size: 17px; line-height: 1.65; }
.lede { font-size: clamp(17px, 1.6vw, 20px); color: var(--ink-dim); max-width: 640px; }

.eyebrow {
    display: inline-flex; align-items: center; gap: 8px;
    font-family: var(--font-body); font-size: 12px; font-weight: 700;
    letter-spacing: .12em; text-transform: uppercase; color: var(--orange);
}
.eyebrow::before {
    content: ""; width: 6px; height: 6px; border-radius: 50%;
    background: var(--orange); box-shadow: 0 0 0 3px var(--orange-soft);
}
.eyebrow.c-red { color: var(--red); } .eyebrow.c-red::before { background: var(--red); box-shadow: 0 0 0 3px var(--red-soft); }
.eyebrow.c-blue { color: var(--blue); } .eyebrow.c-blue::before { background: var(--blue); box-shadow: 0 0 0 3px var(--blue-soft); }
.eyebrow.c-green { color: var(--green); } .eyebrow.c-green::before { background: var(--green); box-shadow: 0 0 0 3px var(--green-soft); }

.section-head { max-width: 780px; margin-bottom: 56px; }
.section-head h2 { margin: 14px 0 16px; }

.text-orange { color: var(--orange); }
.text-red { color: var(--red); }
.text-blue { color: var(--blue); }
.text-green { color: var(--green); }

/*---------------------------------------------------------
  BUTTONS
---------------------------------------------------------*/
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 10px;
    padding: 17px 30px; border-radius: 14px; font-weight: 700; font-size: 15.5px;
    font-family: var(--font-body); cursor: pointer; transition: transform .3s var(--ease), box-shadow .3s var(--ease), background .3s;
    white-space: nowrap;
}
.btn-primary {
    background: var(--orange); color: #ffffff;
    box-shadow: 0 14px 34px rgba(9,181,170,.28);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 20px 46px rgba(9,181,170,.4); }
.btn-ghost {
    background: transparent; border: 1px solid var(--line-strong); color: var(--ink);
}
.btn-ghost:hover { background: rgba(4,48,77,.05); border-color: rgba(4,48,77,.28); }
.btn-lg { padding: 22px 40px; font-size: 17px; }
.btn-block { width: 100%; }

/*---------------------------------------------------------
  SIGNATURE: RADAR / SIGNAL MOTIF
---------------------------------------------------------*/
.signal {
    position: relative; width: 14px; height: 14px; flex-shrink: 0;
}
.signal::before, .signal::after {
    content: ""; position: absolute; inset: 0; border-radius: 50%;
    border: 1px solid currentColor; opacity: 0;
    animation: signal-ping 2.6s var(--ease) infinite;
}
.signal::after { animation-delay: 1.3s; }
.signal-dot { position: absolute; inset: 4px; border-radius: 50%; background: currentColor; }
@keyframes signal-ping {
    0% { transform: scale(1); opacity: .8; }
    100% { transform: scale(4.2); opacity: 0; }
}

/*---------------------------------------------------------
  HEADER
---------------------------------------------------------*/
header {
    position: fixed; top: 14px; left: 50%; transform: translateX(-50%);
    width: min(94%, 1300px); z-index: 500;
    display: flex; align-items: center; justify-content: space-between;
    padding: 8px 10px 8px 20px;
    background: rgba(255,255,255,.72); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--line); border-radius: 16px;
    box-shadow: 0 16px 40px rgba(15,35,60,.10);
    transition: background .3s, border-color .3s;
}
.logo { display: flex; align-items: center; }
.main-logo-svg { height: 24px; width: auto; }
.header-cta .btn { padding: 11px 22px; font-size: 14px; border-radius: 11px; gap: 5px; }

nav.main-nav { display: flex; gap: 34px; }
nav.main-nav a {
    color: var(--ink-dim); font-size: 14.5px; font-weight: 600; transition: color .25s;
}
nav.main-nav a:hover, nav.main-nav a.active { color: var(--ink); }

.header-cta { display: flex; align-items: center; gap: 14px; }
.nav-toggle { display: none; width: 40px; height: 40px; border-radius: 10px; align-items: center; justify-content: center; }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
    content: ""; display: block; width: 18px; height: 2px; background: var(--ink); position: relative; transition: .3s;
}
.nav-toggle span::before { position: absolute; top: -6px; }
.nav-toggle span::after { position: absolute; top: 6px; }

@media (max-width: 900px) {
    nav.main-nav { display: none; }
    header.nav-open nav.main-nav {
        display: flex; flex-direction: column; position: absolute; top: calc(100% + 10px); left: 0; right: 0;
        background: rgba(255,255,255,.97); border: 1px solid var(--line); border-radius: 18px; padding: 20px; gap: 16px;
    }
    .nav-toggle { display: flex; }
    .header-cta .btn span.long { display: none; }
}

/*---------------------------------------------------------
  SECTION SHELL
---------------------------------------------------------*/
section { position: relative; padding: 130px 0; }
section.tight { padding: 90px 0; }
.bg-panel { background: var(--bg-panel); }
.bg-glow-top::before {
    content: ""; position: absolute; top: -200px; left: 50%; transform: translateX(-50%);
    width: 900px; height: 500px; background: radial-gradient(circle, rgba(9,181,170,.08), transparent 70%);
    pointer-events: none; z-index: 0;
}

.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.visible { opacity: 1; transform: translateY(0); }

.reveal-stagger > * { opacity: 0; transform: translateY(22px); transition: opacity .7s var(--ease), transform .7s var(--ease); transition-delay: calc(var(--i, 0) * .09s); }
.reveal-stagger.visible > * { opacity: 1; transform: translateY(0); }

/*=========================================================
= HERO
=========================================================*/
.hero {
    min-height: 100vh; display: flex; align-items: center;
    padding: 118px 0 46px;
    position: relative; overflow: hidden;
    background:
        linear-gradient(90deg, #04263f 28%, rgba(4,38,63,.84) 55%, rgba(4,38,63,.32) 100%),
        url('assets/hero-bg.jpg') no-repeat center right / cover;
}
.hero-grid {
    display: grid; grid-template-columns: 1.05fr .95fr; gap: 40px; align-items: center;
}
.hero-copy { display: flex; flex-direction: column; gap: 18px; }
.hero-badge {
    display: inline-flex; align-items: center; gap: 10px; width: max-content;
    padding: 8px 14px 8px 11px; border-radius: 999px;
    background: var(--orange-soft); border: 1px solid rgba(9,181,170,.3);
    font-size: 12.5px; font-weight: 700; color: var(--orange);
}
.hero-copy h1 { color: #ffffff; }
.hero-copy h1 span { display: block; color: var(--orange); }
.hero-sub { font-family: var(--font-display); font-weight: 700; font-size: clamp(16px, 1.7vw, 21px); color: #eef6fb; max-width: 520px; letter-spacing: -.01em; line-height: 1.25; }
.hero-copy p.lede { max-width: 480px; font-size: 15px; line-height: 1.55; color: rgba(255,255,255,.82); }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 2px; }
.hero-actions .btn { padding: 15px 26px; font-size: 14.5px; }
.hero-actions .btn-lg { padding: 15px 26px; font-size: 14.5px; }
.hero-actions .btn-ghost { border-color: rgba(255,255,255,.35); color: #fff; }
.hero-actions .btn-ghost:hover { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.55); }

.hero-visual { position: relative; display: flex; flex-direction: column; align-items: flex-end; gap: 26px; }
.radar-badge {
    position: absolute; top: -16px; right: 20px; z-index: 4;
    display: flex; align-items: center; gap: 10px;
    padding: 8px 14px; border-radius: 999px;
    background: rgba(6,9,14,.85); border: 1px solid rgba(46,204,113,.3);
    backdrop-filter: blur(10px); font-size: 12px; font-weight: 700; color: var(--green);
}
.radar-badge .signal { color: var(--green); }

.device-window {
    position: relative; width: 100%; max-width: 580px;
    border-radius: 20px; overflow: hidden; background: #eef4f6;
    border: 1px solid var(--line); box-shadow: 0 44px 100px rgba(0,0,0,.45);
}
.device-top {
    height: 40px; display: flex; align-items: center; justify-content: space-between;
    padding: 0 14px; background: #eef4f6; border-bottom: 1px solid var(--line);
}
.device-dots { display: flex; gap: 7px; }
.device-dots span { width: 9px; height: 9px; border-radius: 50%; background: #c3ccd4; }
.device-dots span:nth-child(1) { background: #ff5f57; }
.device-dots span:nth-child(2) { background: #febc2e; }
.device-dots span:nth-child(3) { background: #28c840; }
.device-title { font-size: 12px; color: var(--ink-dim); font-weight: 600; }
.device-body { aspect-ratio: 16/9.6; background: #eef4f6; overflow: hidden; }
.device-body img { width: 100%; height: 100%; object-fit: cover; object-position: top left; }

.hero-trust { display: flex; flex-direction: column; align-items: flex-end; gap: 10px; }
.hero-trust .row-label { font-size: 10.5px; text-transform: uppercase; letter-spacing: .1em; color: rgba(255,255,255,.55); font-weight: 700; }
.trust-logos { display: flex; gap: 12px; }
.trust-logos .card {
    background: #fff; border-radius: 11px; padding: 10px 18px; display: flex; align-items: center;
    box-shadow: 0 10px 24px rgba(0,0,0,.3);
}
.trust-logos img { height: 19px; width: auto; }

.hero-kpis {
    margin-top: 8px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.18);
    display: flex; gap: 40px; flex-wrap: wrap;
}
.kpi strong { font-family: var(--font-display); font-size: 28px; display: block; line-height: 1; margin-bottom: 4px; color: #ffffff; }
.kpi span { color: rgba(255,255,255,.65); font-size: 12.5px; }

@media (max-width: 1100px) {
    .hero-grid { grid-template-columns: 1fr; text-align: center; }
    .hero-copy { align-items: center; }
    .hero-copy p.lede { max-width: 100%; }
    .hero-visual { align-items: center; margin-top: 20px; }
    .hero-trust { align-items: center; }
    .hero-kpis { justify-content: center; }
    .radar-badge { position: static; margin-bottom: 4px; }
}
@media (max-width: 560px) {
    .hero-kpis { gap: 26px 32px; }
}

/*=========================================================
= COÛTS INVISIBLES
=========================================================*/
.cost-list { display: flex; flex-direction: column; gap: 26px; margin-top: 10px; }
.cost-card {
    position: relative; border-radius: var(--radius-lg); overflow: hidden;
    border: 1px solid var(--line); background: var(--surface);
    display: grid; grid-template-columns: 1fr 1.15fr; min-height: 320px;
    transition: border-color .4s var(--ease), transform .4s var(--ease), box-shadow .4s var(--ease);
}
.cost-card:nth-child(even) { grid-template-columns: 1.15fr 1fr; }
.cost-card:nth-child(even) .cost-media { order: 2; }
.cost-card:hover { transform: translateY(-6px); box-shadow: 0 30px 70px rgba(15,35,60,.18); }
.cost-card[data-tone="red"]:hover { border-color: rgba(217,45,35,.35); }
.cost-card[data-tone="orange"]:hover { border-color: rgba(9,181,170,.35); }
.cost-card[data-tone="blue"]:hover { border-color: rgba(0,93,156,.35); }
.cost-card[data-tone="green"]:hover { border-color: rgba(22,163,74,.35); }

.cost-copy { padding: 44px 42px; display: flex; flex-direction: column; justify-content: center; gap: 16px; }
.cost-index { font-family: var(--font-display); font-size: 13px; font-weight: 800; letter-spacing: .08em; }
.cost-card[data-tone="red"] .cost-index, .cost-card[data-tone="red"] .eyebrow { color: var(--red); }
.cost-card[data-tone="orange"] .cost-index, .cost-card[data-tone="orange"] .eyebrow { color: var(--orange); }
.cost-card[data-tone="blue"] .cost-index, .cost-card[data-tone="blue"] .eyebrow { color: var(--blue); }
.cost-card[data-tone="green"] .cost-index, .cost-card[data-tone="green"] .eyebrow { color: var(--green); }


.cost-copy h3 { font-size: clamp(21px, 2.2vw, 27px); }
.cost-copy p { font-size: 15.5px; }

.cost-media { position: relative; overflow: hidden; min-height: 260px; }
.cost-media img {
    width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0;
    transition: transform .6s var(--ease);
}
.cost-card:hover .cost-media img { transform: scale(1.045); }
.cost-media::after {
    content: ""; position: absolute; inset: 0;
    background: linear-gradient(90deg, var(--surface) 0%, transparent 22%);
}
.cost-card:nth-child(even) .cost-media::after { background: linear-gradient(270deg, var(--surface) 0%, transparent 22%); }

@media (max-width: 900px) {
    .cost-card, .cost-card:nth-child(even) { grid-template-columns: 1fr; }
    .cost-card:nth-child(even) .cost-media { order: -1; }
    .cost-media { aspect-ratio: 16/9; min-height: 0; }
    .cost-media::after { display: none; }
    .cost-copy { padding: 32px 26px; }
}

/*=========================================================
= CAS D'USAGE (3 CARTES CHIFFRES)
=========================================================*/
.usage-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; margin-bottom: 70px; }
.usage-stat-card {
    position: relative; overflow: hidden; border-radius: var(--radius-lg);
    border: 1px solid rgba(255,255,255,.08); background: #0d1420;
    min-height: 480px; padding: 34px 30px; display: flex; flex-direction: column;
    transition: transform .4s var(--ease), border-color .4s var(--ease);
}
.usage-stat-card:hover { transform: translateY(-6px); border-color: rgba(255,255,255,.18); }
.usage-stat-bg { position: absolute; inset: 0; z-index: 0; opacity: .85; background-size: cover; background-position: center; }
.usage-stat-card::after {
    content: ""; position: absolute; inset: 0; z-index: 1;
    background: linear-gradient(180deg, #0d1420 4%, rgba(9,12,18,.25) 30%, rgba(9,12,18,.55) 60%, #0d1420 96%);
}
.usage-stat-card > * { position: relative; z-index: 2; }
.usage-stat-card > .usage-stat-bg { position: absolute; inset: 0; z-index: 0; }
.usage-stat-num-badge {
    width: 30px; height: 30px; border-radius: 50%; background: rgba(9,12,18,.6); border: 1px solid rgba(9,181,170,.35); color: var(--orange);
    display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 800; margin-bottom: 40px;
    backdrop-filter: blur(6px);
}
.usage-stat-value {
    font-family: var(--font-display); font-weight: 900; font-size: 64px; line-height: .95; color: #ff5b3d; letter-spacing: -2px; margin-bottom: 20px;
    text-shadow: 0 4px 30px rgba(0,0,0,.6);
}
.usage-stat-value span { font-size: .45em; font-weight: 800; }
.usage-stat-card p.desc { font-size: 14.5px; margin-bottom: 18px; color: #cdd4de; text-shadow: 0 2px 12px rgba(0,0,0,.7); }
.usage-stat-conclusion { margin-top: auto; font-weight: 700; color: #fff; font-size: 16px; line-height: 1.4; text-shadow: 0 2px 14px rgba(0,0,0,.8); }

@media (max-width: 900px) { .usage-stats { grid-template-columns: 1fr; } .usage-stat-card { min-height: 380px; } }

/*=========================================================
= PANNEAU INTERACTIF "COÛTS INVISIBLES" (style Apple)
=========================================================*/
.invisible-panel { width: 100%; aspect-ratio: 16/8.2; min-height: 320px; border-radius: 26px; overflow: hidden;
    position: relative; background: #0b0f17; border: 1px solid rgba(255,255,255,.08); box-shadow: 0 50px 120px rgba(15,35,60,.30); }
.invisible-view { position: absolute; inset: 0; opacity: 0; visibility: hidden; transition: opacity .45s var(--ease), visibility .45s; }
.invisible-view.active { opacity: 1; visibility: visible; }
.invisible-view img { width: 100%; height: 100%; object-fit: cover; }
.invisible-badge {
    position: absolute; bottom: 24px; left: 24px; z-index: 3;
    display: flex; align-items: center; gap: 12px; padding: 12px 18px; border-radius: 14px;
    background: rgba(6,9,14,.72); backdrop-filter: blur(14px); border: 1px solid rgba(255,255,255,.16);
}
.invisible-badge .signal { flex-shrink: 0; }
.invisible-badge strong { display: block; font-size: 13.5px; color: #fff; }
.invisible-badge span.sub { display: block; font-size: 12px; color: rgba(255,255,255,.72); margin-top: 2px; }

.invisible-tiles { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 22px; }
.invisible-tile {
    padding: 22px 20px; border-radius: 16px; background: var(--surface); border: 1px solid var(--line);
    cursor: pointer; transition: .3s var(--ease); text-align: left;
}
.invisible-tile:hover, .invisible-tile.active { border-color: rgba(9,181,170,.45); background: var(--surface-2); transform: translateY(-3px); }
.invisible-tile .icon { font-size: 20px; margin-bottom: 12px; display: block; }
.invisible-tile h4 { font-size: 15.5px; margin-bottom: 6px; }
.invisible-tile p { font-size: 13px; }

@media (max-width: 900px) {
    .invisible-tiles { grid-template-columns: 1fr 1fr; }
    .invisible-panel { aspect-ratio: 4/3; }
}
@media (max-width: 560px) { .invisible-tiles { grid-template-columns: 1fr; } }

/*=========================================================
= PLATEFORME
=========================================================*/
.platform-shell { display: grid; grid-template-columns: minmax(0,2.3fr) 360px; gap: 44px; align-items: center; margin-top: 20px; }
.platform-screen-wrap {
    border-radius: 26px; overflow: hidden; background: #eef4f6;
    border: 1px solid var(--line); box-shadow: 0 60px 130px rgba(15,35,60,.20);
}
.platform-screen-top {
    height: 46px; display: flex; align-items: center; gap: 10px; padding: 0 18px;
    background: #eef4f6; border-bottom: 1px solid var(--line);
}
.platform-screen-top .device-dots span { width: 9px; height: 9px; }
.platform-screen-label { font-size: 12.5px; color: var(--ink-dim); font-weight: 600; margin-left: 4px; }
.platform-screen-body { position: relative; aspect-ratio: 16/10; background: #eef4f6; }
.platform-screen-body img {
    position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: top left;
    opacity: 0; transition: opacity .5s var(--ease);
}
.platform-screen-body img.active { opacity: 1; }

.platform-cards { display: flex; flex-direction: column; gap: 18px; }
.platform-card {
    display: flex; gap: 16px; padding: 22px; border-radius: 18px;
    background: var(--surface); border: 1px solid var(--line); cursor: pointer;
    transition: .35s var(--ease);
}
.platform-card:hover, .platform-card.active {
    border-color: rgba(9,181,170,.4); background: var(--surface-2); transform: translateX(-6px);
}
.platform-card-icon {
    width: 46px; height: 46px; border-radius: 13px; flex-shrink: 0;
    background: rgba(4,48,77,.05); display: flex; align-items: center; justify-content: center; font-size: 20px;
}
.platform-card.active .platform-card-icon { background: var(--orange-soft); }
.platform-card h3 { font-size: 16.5px; margin-bottom: 5px; }
.platform-card p { font-size: 14px; }

.platform-kpi-bar {
    display: flex; flex-wrap: wrap; justify-content: space-between; gap: 18px;
    margin-top: 46px; padding: 26px 32px; border-radius: 20px;
    background: var(--surface); border: 1px solid var(--line);
}
.platform-kpi-bar .item { display: flex; align-items: center; gap: 9px; font-size: 15px; color: var(--ink); font-weight: 600; }
.platform-kpi-bar .check { color: var(--green); font-weight: 800; }

@media (max-width: 1150px) {
    .platform-shell { grid-template-columns: 1fr; }
    .platform-cards { display: grid; grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
    .platform-cards { grid-template-columns: 1fr; }
    .platform-kpi-bar { flex-direction: column; }
}

/*=========================================================
= IA EVO PIPELINE
=========================================================*/
.evo-pipeline {
    display: grid; grid-template-columns: repeat(5, 1fr); gap: 0;
    margin: 60px 0 40px; position: relative;
}
.evo-node { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 14px; position: relative; padding: 0 10px; }
.evo-node-icon {
    width: 72px; height: 72px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
    font-size: 28px; background: var(--surface); border: 1px solid var(--line); position: relative; z-index: 2;
    transition: border-color .4s, box-shadow .4s;
}
.evo-node.core .evo-node-icon {
    border-color: rgba(9,181,170,.5); box-shadow: 0 0 0 8px var(--orange-soft), 0 0 40px rgba(9,181,170,.25);
    background: #eafaf8;
}
.evo-node h4 { font-size: 14.5px; color: var(--ink); margin-bottom: 3px; }
.evo-node p { font-size: 12.5px; color: var(--ink-faint); max-width: 150px; }
.evo-connector {
    position: absolute; top: 36px; left: calc(50% + 46px); width: calc(100% - 92px); height: 1px;
    background: repeating-linear-gradient(90deg, var(--line-strong) 0 6px, transparent 6px 12px);
    z-index: 1;
}
.evo-node:last-child .evo-connector { display: none; }

@media (max-width: 950px) {
    .evo-pipeline { grid-template-columns: 1fr; gap: 34px; }
    .evo-connector { display: none; }
}

.evo-cases { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 20px; }
.evo-case { padding: 30px 32px; border-radius: 20px; background: var(--surface); border: 1px solid var(--line); }
.evo-case-tag { font-size: 12px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--orange); margin-bottom: 16px; display: block; }
.evo-case-steps { display: flex; flex-direction: column; gap: 10px; }
.evo-case-steps .step { display: flex; align-items: center; gap: 12px; font-size: 14.5px; color: var(--ink); }
.evo-case-steps .step .n { width: 22px; height: 22px; border-radius: 50%; background: rgba(4,48,77,.06); display: flex; align-items: center; justify-content: center; font-size: 11px; font-weight: 700; color: var(--ink-dim); flex-shrink: 0; }
.evo-case-steps .step.final .n { background: var(--green-soft); color: var(--green); }

@media (max-width: 800px) { .evo-cases { grid-template-columns: 1fr; } }

.evo-badges { display: flex; gap: 14px; justify-content: center; margin-top: 44px; flex-wrap: wrap; }
.evo-badge {
    display: flex; align-items: center; gap: 8px; padding: 9px 18px; border-radius: 999px;
    background: var(--surface); border: 1px solid var(--line); font-size: 13.5px; color: var(--ink-dim); font-weight: 600;
}

#evo .section-head { max-width: 700px; margin-bottom: 34px; }
#evo .section-head h2 { font-size: clamp(24px, 2.8vw, 36px); margin: 10px 0 12px; }
#evo .section-head .lede { font-size: 15px; max-width: 600px; }

.evo-mini-badges { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 14px; }
.evo-mini-badges span {
    font-size: 12px; font-weight: 600; color: var(--ink-dim); padding: 7px 13px; border-radius: 999px;
    background: var(--surface); border: 1px solid var(--line);
}

/*=========================================================
= IA EVO — VITRINE VISUELLE
=========================================================*/
.evo-showcase { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: stretch; margin: 40px 0 46px; }

.evo-device-card {
    border-radius: var(--radius-lg); border: 1px solid var(--line); background: var(--surface);
    padding: 24px 24px 28px; display: flex; flex-direction: column; gap: 18px;
}
.evo-device-visual {
    border-radius: 16px; overflow: hidden; aspect-ratio: 16/10; background: #eef4f6; border: 1px solid var(--line);
}
.evo-device-visual img { width: 100%; height: 100%; object-fit: cover; }
.evo-device-name { display: flex; align-items: center; gap: 10px; }
.evo-device-name .signal { color: var(--green); }
.evo-device-name strong { font-family: var(--font-display); font-size: 15.5px; color: var(--ink); }
.evo-device-name span.sub { display: block; font-size: 12px; color: var(--ink-faint); }
.evo-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 16px; }
.evo-spec { display: flex; gap: 12px; align-items: flex-start; }
.evo-spec .ic { width: 34px; height: 34px; border-radius: 10px; background: rgba(4,48,77,.05); display: flex; align-items: center; justify-content: center; font-size: 15px; flex-shrink: 0; }
.evo-spec strong { display: block; font-size: 13.5px; color: var(--ink); }
.evo-spec span { font-size: 12px; color: var(--ink-faint); }

@media (max-width: 560px) {
    .evo-specs { grid-template-columns: 1fr; }
}

.evo-mock {
    border-radius: var(--radius-lg); overflow: hidden; background: #f6fafb;
    border: 1px solid var(--line); box-shadow: 0 40px 90px rgba(15,35,60,.16);
    display: flex; flex-direction: column;
}
.evo-mock-top {
    height: 46px; display: flex; align-items: center; gap: 10px; padding: 0 18px;
    background: #eef4f6; border-bottom: 1px solid var(--line); flex-shrink: 0;
}
.evo-mock-top span.lbl { font-size: 12.5px; color: var(--ink-dim); font-weight: 600; margin-left: 4px; }
.evo-mock-body { padding: 22px 24px; display: flex; flex-direction: column; gap: 20px; flex: 1; }
.evo-mock-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.evo-mock-stat { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; }
.evo-mock-stat label { font-size: 11px; color: var(--ink-faint); text-transform: uppercase; letter-spacing: .05em; }
.evo-mock-stat strong { display: block; font-family: var(--font-display); font-size: 24px; color: var(--ink); margin-top: 4px; }

.evo-mock-chart { display: flex; align-items: flex-end; gap: 5px; height: 74px; padding: 0 2px; }
.evo-mock-chart .bar { flex: 1; border-radius: 4px 4px 0 0; background: linear-gradient(180deg, var(--orange), rgba(9,181,170,.25)); }
.evo-mock-chart .bar.alt { background: linear-gradient(180deg, var(--ink-faint), rgba(4,48,77,.10)); }
.evo-mock-caption { font-size: 11.5px; color: var(--ink-faint); display: flex; align-items: center; gap: 8px; }

.evo-mock-log { display: flex; flex-direction: column; gap: 10px; }
.evo-mock-log .entry { display: flex; align-items: center; gap: 12px; font-size: 13px; }
.evo-mock-log .entry .t { color: var(--ink-faint); font-variant-numeric: tabular-nums; width: 42px; flex-shrink: 0; }
.evo-mock-log .entry .dot { width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; }
.evo-mock-log .entry .dot.load { background: var(--orange); }
.evo-mock-log .entry .dot.unload { background: var(--blue); }
.evo-mock-log .entry .lbl { color: var(--ink); }
.evo-mock-caption-tag { font-size: 10.5px; color: var(--ink-faint); text-align: right; margin-top: -6px; }

@media (max-width: 1024px) {
    .evo-showcase { grid-template-columns: 1fr; }
}

/*---------------------------------------------------------
  CHAÎNE VISUELLE (5 ÉTAPES)
---------------------------------------------------------*/
.evo-chain { display: flex; align-items: flex-start; justify-content: space-between; gap: 6px; margin-bottom: 44px; }
.evo-chain-step { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 10px; flex: 1; min-width: 0; }
.evo-chain-icon {
    width: 58px; height: 58px; border-radius: 16px; background: var(--surface); border: 1px solid var(--line);
    display: flex; align-items: center; justify-content: center; font-size: 22px;
}
.evo-chain-step:nth-child(odd) .evo-chain-icon { border-color: rgba(9,181,170,.35); }
.evo-chain-step p { font-size: 12px; color: var(--ink-dim); line-height: 1.4; max-width: 120px; }
.evo-chain-arrow { color: var(--ink-faint); font-size: 16px; padding-top: 18px; flex-shrink: 0; }

@media (max-width: 800px) {
    .evo-chain { flex-direction: column; align-items: stretch; }
    .evo-chain-step { flex-direction: row; text-align: left; max-width: 100%; }
    .evo-chain-step p { max-width: none; }
    .evo-chain-arrow { display: none; }
}

/*=========================================================
= ROI CALCULATOR
=========================================================*/
.roi-shell {
    display: grid; grid-template-columns: 1fr 1fr; gap: 0;
    border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--line);
    background: var(--surface); margin-top: 10px;
}
.roi-form { padding: 48px 44px; border-right: 1px solid var(--line); }
.roi-field { margin-bottom: 26px; }
.roi-field label { display: flex; justify-content: space-between; font-size: 14px; font-weight: 600; color: var(--ink); margin-bottom: 10px; }
.roi-field label .val { color: var(--orange); font-family: var(--font-display); font-weight: 800; }
.roi-field input[type="range"] {
    width: 100%; appearance: none; height: 5px; border-radius: 3px; background: var(--surface-2); outline: none;
}
.roi-field input[type="range"]::-webkit-slider-thumb {
    appearance: none; width: 20px; height: 20px; border-radius: 50%; background: var(--orange); cursor: pointer;
    box-shadow: 0 0 0 5px var(--orange-soft); transition: box-shadow .2s;
}
.roi-field input[type="range"]::-moz-range-thumb {
    width: 20px; height: 20px; border-radius: 50%; background: var(--orange); cursor: pointer; border: none;
    box-shadow: 0 0 0 5px var(--orange-soft);
}
.roi-field .range-labels { display: flex; justify-content: space-between; font-size: 11.5px; color: var(--ink-faint); margin-top: 6px; }

.roi-result { padding: 48px 44px; display: flex; flex-direction: column; }
.roi-result .roi-label { font-size: 13px; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-faint); font-weight: 700; margin-bottom: 10px; }
.roi-total {
    font-family: var(--font-display); font-weight: 800; font-size: clamp(46px, 5.4vw, 66px);
    line-height: 1; background: linear-gradient(90deg, var(--blue), var(--orange));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.roi-total-sub { color: var(--ink-faint); font-size: 14px; margin-top: 8px; margin-bottom: 30px; }
.roi-breakdown { display: flex; flex-direction: column; gap: 14px; margin-bottom: 30px; }
.roi-breakdown .row { display: flex; justify-content: space-between; align-items: center; font-size: 14.5px; color: var(--ink-dim); padding-bottom: 14px; border-bottom: 1px solid var(--line); }
.roi-breakdown .row strong { color: var(--ink); font-family: var(--font-display); font-weight: 800; }
.roi-disclaimer { font-size: 12.5px; color: var(--ink-faint); line-height: 1.6; margin-top: auto; padding-top: 10px; }
.roi-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }

@media (max-width: 950px) {
    .roi-shell { grid-template-columns: 1fr; }
    .roi-form { border-right: none; border-bottom: 1px solid var(--line); }
}

/*=========================================================
= CAS CLIENT (QUALITATIF)
=========================================================*/
.case-card {
    display: grid; grid-template-columns: .9fr 1.1fr; gap: 0; border-radius: var(--radius-lg);
    overflow: hidden; border: 1px solid var(--line); background: var(--surface);
}
.case-visual {
    position: relative; min-height: 340px;
    background: radial-gradient(circle at 30% 20%, rgba(9,181,170,.10), transparent 60%), #0d1420;
    background-size: cover; background-position: center;
}
.case-visual::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(6,9,14,.5), transparent 50%); }
.case-tag {
    position: absolute; bottom: 22px; left: 22px; z-index: 2;
    background: rgba(6,9,14,.75); backdrop-filter: blur(10px); border: 1px solid rgba(255,255,255,.16);
    padding: 8px 16px; border-radius: 999px; font-size: 12.5px; font-weight: 700; color: #fff;
}
.case-copy { padding: 46px 46px; display: flex; flex-direction: column; gap: 26px; }
.case-copy h3 { font-size: clamp(22px, 2.4vw, 30px); }
.case-steps { display: flex; flex-direction: column; gap: 18px; }
.case-step { display: flex; gap: 16px; }
.case-step .tag { font-size: 11px; font-weight: 800; letter-spacing: .08em; color: var(--orange); text-transform: uppercase; width: 88px; flex-shrink: 0; padding-top: 3px; }
.case-step p { font-size: 15px; color: var(--ink); }
.case-note {
    font-size: 13px; color: var(--ink-faint); border-top: 1px solid var(--line); padding-top: 18px; font-style: italic;
}

@media (max-width: 900px) {
    .case-card { grid-template-columns: 1fr; }
    .case-visual { min-height: 220px; }
    .case-copy { padding: 32px 26px; }
}

/*=========================================================
= 3 ÉTAPES
=========================================================*/
.steps-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; margin-top: 10px; }
.step-card { padding: 38px 32px; border-radius: 22px; background: var(--surface); border: 1px solid var(--line); position: relative; }
.step-num { font-family: var(--font-display); font-size: 15px; font-weight: 800; color: var(--orange); letter-spacing: .06em; margin-bottom: 20px; display: block; }
.step-card h3 { margin-bottom: 12px; }
.step-arrow {
    position: absolute; top: 40px; right: -22px; font-size: 22px; color: var(--ink-faint); z-index: 2;
}
.step-card:last-child .step-arrow { display: none; }

@media (max-width: 900px) {
    .steps-row { grid-template-columns: 1fr; }
    .step-arrow { display: none; }
}

/*=========================================================
= CLIENTS TRUST STRIP
=========================================================*/
.trust-strip {
    display: flex; align-items: center; justify-content: center; gap: 56px; flex-wrap: wrap; margin-top: 8px;
}
.trust-strip img { height: 26px; width: auto; filter: grayscale(1) brightness(.4); opacity: .55; transition: opacity .3s, filter .3s; }
.trust-strip img:hover { opacity: 1; filter: grayscale(0) brightness(1); }

/*=========================================================
= FAQ
=========================================================*/
.faq-list { max-width: 780px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.faq-item { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; overflow: hidden; transition: border-color .3s; }
.faq-item:hover { border-color: var(--line-strong); }
.faq-q {
    width: 100%; padding: 22px 24px; display: flex; justify-content: space-between; align-items: center;
    font-size: 16.5px; font-weight: 700; color: var(--ink); font-family: var(--font-display); text-align: left;
}
.faq-q .plus { font-size: 20px; color: var(--orange); transition: transform .3s; flex-shrink: 0; margin-left: 16px; }
.faq-item.active .faq-q .plus { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .35s var(--ease); }
.faq-a p { padding: 0 24px 22px; font-size: 15px; }

/*=========================================================
= CTA FINAL
=========================================================*/
.final-cta {
    text-align: center; padding: 150px 0 110px;
    background: radial-gradient(ellipse at center top, rgba(9,181,170,.10), transparent 60%);
}
.final-cta .eyebrow { justify-content: center; display: inline-flex; margin-bottom: 20px; }
.final-cta h2 { max-width: 900px; margin: 0 auto 20px; }
.final-cta .lede { margin: 0 auto 42px; text-align: center; }
.final-actions { display: flex; flex-direction: column; align-items: center; gap: 16px; }
.final-actions .btn-primary { font-size: 19px; padding: 24px 54px; }
.final-note { font-size: 13.5px; color: var(--ink-faint); }

/*=========================================================
= FOOTER
=========================================================*/
footer {
    padding: 44px 0; border-top: 1px solid var(--line);
    display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 24px;
}
.footer-logo-svg { height: 30px; width: auto; }
.footer-links { display: flex; gap: 28px; flex-wrap: wrap; }
.footer-links a { color: var(--ink-dim); font-size: 14px; transition: color .25s; }
.footer-links a:hover { color: var(--ink); }
.copyright { font-size: 13px; color: var(--ink-faint); }

/*---------------------------------------------------------
  CURSOR GLOW (desktop only)
---------------------------------------------------------*/
.mouse-light {
    position: fixed; width: 640px; height: 640px; left: 0; top: 0; border-radius: 50%; pointer-events: none; z-index: -1;
    background: radial-gradient(circle, rgba(9,181,170,.06), transparent 70%);
    transform: translate(-50%,-50%); filter: blur(50px);
}
@media (max-width: 900px), (hover: none) {
    .mouse-light { display: none; }
}

/*=========================================================
= TECHNOLOGIE ADAPTÉE (namespace btp-tech-)
= Bande photo volontairement sombre pour la lisibilité,
= au sein d'une page globalement claire.
=========================================================*/
.btp-tech-section {
    position: relative;
    padding: 100px 0;
    overflow: hidden;
    background:
        linear-gradient(180deg, rgba(4,20,34,.90) 0%, rgba(4,20,34,.78) 50%, rgba(4,20,34,.90) 100%),
        url('assets/tech-bg-chantier.jpg') no-repeat center center / cover;
}
.btp-tech-head { text-align: center; max-width: 720px; margin: 0 auto 54px; position: relative; z-index: 2; }
.btp-tech-head .eyebrow { justify-content: center; display: inline-flex; }
.btp-tech-head h2 { margin: 14px 0 14px; font-size: clamp(30px, 3.6vw, 50px); color: #fff; }
.btp-tech-head p { font-size: 16px; color: rgba(255,255,255,.78); }

.btp-tech-beacons {
    position: relative; z-index: 2; display: flex; justify-content: space-between;
    max-width: 1080px; margin: 0 auto; padding: 0 20px 26px;
}
.btp-tech-beacon { display: flex; flex-direction: column; align-items: center; gap: 0; flex: 1; }
.btp-tech-beacon .signal { color: var(--orange); width: 12px; height: 12px; }
.btp-tech-beacon .line { width: 1px; flex: 1; min-height: 46px; background: linear-gradient(180deg, rgba(9,181,170,.55), transparent); margin-top: 10px; }

.btp-tech-grid {
    position: relative; z-index: 2;
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px;
    max-width: 1160px; margin: 0 auto;
}
.btp-tech-card {
    border-radius: var(--radius-lg); overflow: hidden; background: var(--surface);
    border: 1px solid var(--line); display: flex; flex-direction: column;
    transition: transform .35s var(--ease), border-color .35s var(--ease), box-shadow .35s var(--ease);
}
.btp-tech-card:hover {
    transform: translateY(-6px); border-color: rgba(9,181,170,.4);
    box-shadow: 0 30px 70px rgba(0,0,0,.35);
}
.btp-tech-card-media { position: relative; aspect-ratio: 4/3; overflow: hidden; background: #0b0f17; }
.btp-tech-card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.btp-tech-card:hover .btp-tech-card-media img { transform: scale(1.05); }
.btp-tech-card-num {
    position: absolute; top: 14px; left: 14px; z-index: 2;
    background: rgba(9,12,18,.75); backdrop-filter: blur(8px); border: 1px solid rgba(9,181,170,.4);
    color: var(--orange); font-family: var(--font-display); font-weight: 800; font-size: 12px;
    padding: 5px 11px; border-radius: 8px;
}
.btp-tech-card-body { padding: 24px 24px 26px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.btp-tech-card-body h3 { font-size: 20px; }
.btp-tech-card-tech { font-size: 12.5px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--orange); }
.btp-tech-card-body p.desc { font-size: 14px; color: var(--ink-dim); flex: 1; }
.btp-tech-card-tag {
    display: inline-flex; align-items: center; gap: 7px; width: max-content; margin-top: 4px;
    font-size: 12px; font-weight: 600; color: var(--ink-dim); padding: 7px 12px;
    border-radius: 999px; border: 1px solid var(--line); background: rgba(4,48,77,.04);
}

.btp-tech-transition { text-align: center; max-width: 620px; margin: 46px auto 0; position: relative; z-index: 2; }
.btp-tech-transition p:first-child { color: rgba(255,255,255,.75); font-size: 15px; margin-bottom: 6px; }
.btp-tech-transition p:last-child { color: #fff; font-weight: 700; font-size: 17px; font-family: var(--font-display); }

@media (max-width: 900px) {
    .btp-tech-grid { grid-template-columns: 1fr; }
    .btp-tech-beacons { display: none; }
    .btp-tech-section { padding: 74px 0; }
}