/* ════════════════════════════════════════════════════════════════════
 * CalepiPro — styles (palette beige / terre, thème clair & sombre)
 * Architecture calquée sur JYL Balance : sidebar (desktop) + bottom-nav
 * (mobile), sections togglées, design tokens CSS.
 * ════════════════════════════════════════════════════════════════════ */

:root {
  /* Charte alignée sur le logo JYL Calepinage : brun taupe + or/tan */
  --brand:#6b5b49; --brand-dark:#4f4234; --brand-light:#c3a877;
  --secondary:#bfa06b; --success:#5a7d3c; --warning:#a9802a; --danger:#9a4b34;
  --bg:#faf6ef; --card-bg:#ffffff; --text:#3a322a; --text-muted:#8c7f6c;
  --border:#e7ddcd; --input-bg:#fbf6ee; --sand:#f1e7d6;
  --shadow:0 1px 3px rgba(80,60,30,.10),0 1px 2px rgba(80,60,30,.06);
  --shadow-md:0 4px 6px -1px rgba(80,60,30,.10),0 2px 4px -1px rgba(80,60,30,.06);
  --shadow-lg:0 10px 15px -3px rgba(80,60,30,.12),0 4px 6px -2px rgba(80,60,30,.06);
  --shadow-up:0 -2px 10px rgba(80,60,30,.08),0 -1px 4px rgba(80,60,30,.05);
  --radius:14px; --radius-sm:10px; --transition:all .2s ease;
  --grad:linear-gradient(135deg,#c3a877,#6b5b49);
  /* rendu du plan : carreaux ton tan du logo, point de départ brun foncé */
  --tile:#e1cba2; --tile-stroke:#a88f63; --cut:#cbb083; --cut-stroke:#8a6f44; --start:#4f4234;
}
@media(prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#241f18; --card-bg:#2f281f; --text:#efe6d6; --text-muted:#b3a489;
    --border:#3c3328; --input-bg:#241f18; --sand:#3a3228;
    --shadow:0 1px 3px rgba(0,0,0,.4),0 1px 2px rgba(0,0,0,.3);
    --shadow-md:0 4px 6px -1px rgba(0,0,0,.4),0 2px 4px -1px rgba(0,0,0,.3);
    --shadow-lg:0 10px 15px -3px rgba(0,0,0,.4),0 4px 6px -2px rgba(0,0,0,.2);
    --shadow-up:0 -2px 10px rgba(0,0,0,.35),0 -1px 4px rgba(0,0,0,.2);
    --card-bg-2:#2f281f;
  }
}
html[data-theme="dark"]{
  --bg:#241f18; --card-bg:#2f281f; --text:#efe6d6; --text-muted:#b3a489;
  --border:#3c3328; --input-bg:#241f18; --sand:#3a3228;
  --shadow:0 1px 3px rgba(0,0,0,.4),0 1px 2px rgba(0,0,0,.3);
  --shadow-md:0 4px 6px -1px rgba(0,0,0,.4),0 2px 4px -1px rgba(0,0,0,.3);
  --shadow-lg:0 10px 15px -3px rgba(0,0,0,.4),0 4px 6px -2px rgba(0,0,0,.2);
  --shadow-up:0 -2px 10px rgba(0,0,0,.35),0 -1px 4px rgba(0,0,0,.2);
}
html[data-theme="light"]{
  --bg:#faf6ef; --card-bg:#ffffff; --text:#2b2419; --text-muted:#8a7c68;
  --border:#e7ddcd; --input-bg:#fbf6ee; --sand:#f1e7d6;
}

*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;overflow-x:hidden}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;transition:background .3s,color .3s;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
button{cursor:pointer;font-family:inherit}
input,select,textarea{font-family:inherit}
.hidden{display:none!important}

/* ── SPLASH ── */
#splash-screen{position:fixed;inset:0;z-index:9999;background:#faf6ef;display:flex;flex-direction:column;align-items:center;justify-content:center;transition:opacity .5s}
#splash-screen.fade{opacity:0;pointer-events:none}
.splash-img{width:220px;max-width:62%;height:auto}
.splash-spinner{margin-top:26px;width:30px;height:30px;border:3px solid var(--sand);border-top-color:var(--brand);border-radius:50%;animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* ── LAYOUT ── */
.app{display:flex;min-height:100vh}
.sidebar{width:240px;background:var(--card-bg);border-right:1px solid var(--border);display:flex;flex-direction:column;position:fixed;top:0;left:0;height:100vh;z-index:100;transition:transform .3s}
.sidebar-brand{padding:18px 16px 12px;border-bottom:1px solid var(--border);display:flex;flex-direction:column;align-items:center;gap:6px}
.sidebar-brand .logo{width:64px;height:64px;border-radius:16px;object-fit:contain}
.sidebar-brand .brand-name{font-size:18px;font-weight:800;letter-spacing:.5px;background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.sidebar-brand .brand-edition{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:1px;color:var(--text-muted)}
.sidebar-nav{flex:1;padding:12px 0;overflow-y:auto}
.nav-item{display:flex;align-items:center;gap:12px;padding:12px 22px;cursor:pointer;transition:var(--transition);font-size:14px;font-weight:600;color:var(--text-muted);border-left:3px solid transparent}
.nav-item:hover{background:rgba(140,109,70,.08);color:var(--brand)}
.nav-item.active{background:rgba(140,109,70,.12);color:var(--brand-dark);border-left-color:var(--brand)}
.nav-item i{width:18px;text-align:center;font-size:15px}
.sidebar-footer{padding:14px 18px;border-top:1px solid var(--border);font-size:11px;color:var(--text-muted);text-align:center}
.main{flex:1;margin-left:240px;min-height:100vh;display:flex;flex-direction:column}
.topbar{background:var(--card-bg);border-bottom:1px solid var(--border);padding:env(safe-area-inset-top) 22px 0;height:calc(58px + env(safe-area-inset-top));display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:50}
.topbar-title{font-size:18px;font-weight:700}
.topbar-actions{display:flex;align-items:center;gap:8px}
.topbar-logo-mobile{display:none;height:34px}
.hamburger{display:none;background:none;border:none;color:var(--text);font-size:20px;padding:6px 8px}
.content{padding:22px;flex:1;max-width:1100px;width:100%;margin:0 auto}
.overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:99}
.overlay.active{display:block}

/* ── SECTIONS ── */
.section{display:none;animation:fade .25s ease}
.section.active{display:block}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.section-head{margin-bottom:16px}
.section-head h2{font-size:22px;font-weight:800}
.section-head p{color:var(--text-muted);font-size:14px;margin-top:2px}

/* ── ACCUEIL ── */
.home{max-width:560px;margin:0 auto;padding-top:8px}
.home-hero{text-align:center;margin-bottom:26px}
.home-logo{width:150px;max-width:55%;height:auto;margin-bottom:8px}
.home-hero h2{font-size:22px;font-weight:800}
.home-hero p{color:var(--text-muted);font-size:14px;margin-top:4px}
.home-actions{display:grid;gap:14px}
.home-card{display:flex;flex-direction:column;align-items:center;gap:6px;text-align:center;background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:26px 18px;box-shadow:var(--shadow);transition:var(--transition);color:var(--text)}
.home-card:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.home-card .home-ico{width:56px;height:56px;border-radius:16px;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:4px}
.home-card b{font-size:17px;font-weight:700}
.home-card span{font-size:13px;color:var(--text-muted)}
@media(min-width:560px){.home-actions{grid-template-columns:1fr 1fr}}

/* ── GRID calculateur ── */
.calc-grid{display:grid;grid-template-columns:320px 1fr;gap:20px;align-items:start}
@media(max-width:820px){.calc-grid{grid-template-columns:1fr}}

/* ── CARDS / FORM ── */
.card{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);margin-bottom:16px}
.card h3{font-size:13px;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);margin-bottom:10px}
label{display:block;font-size:12px;font-weight:700;color:var(--text-muted);margin:12px 0 5px;text-transform:uppercase;letter-spacing:.03em}
label:first-of-type{margin-top:0}
.field{display:flex}
.row{display:flex;gap:8px}
.row>*{flex:1}
input[type=number],input[type=text]{width:100%;border:2px solid var(--border);border-radius:var(--radius-sm);padding:11px 12px;font-size:16px;font-weight:600;color:var(--text);background:var(--input-bg)}
input[type=number]:focus,input[type=text]:focus{outline:none;border-color:var(--brand)}
.suffix{display:flex;align-items:center;padding:0 12px;background:var(--sand);border-radius:var(--radius-sm);margin-left:6px;font-weight:700;color:var(--text-muted);font-size:13px;white-space:nowrap}
select{width:100%;border:2px solid var(--border);border-radius:var(--radius-sm);padding:11px 12px;font-size:15px;font-weight:600;background:var(--input-bg);color:var(--text)}
.seg{display:flex;background:var(--sand);border-radius:var(--radius-sm);padding:4px;gap:4px}
.seg button{flex:1;border:none;background:transparent;padding:9px;border-radius:8px;font-weight:700;color:var(--text-muted);font-size:13px}
.seg button.on{background:var(--card-bg);color:var(--brand-dark);box-shadow:var(--shadow)}
.check{display:flex;align-items:center;gap:8px;margin-top:14px;font-size:14px;font-weight:600}
.check input{width:18px;height:18px;accent-color:var(--brand)}

/* ── BUTTONS ── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:var(--radius-sm);padding:13px 16px;font-size:15px;font-weight:700;transition:var(--transition)}
.btn-block{width:100%}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark)}
.btn-secondary{background:var(--sand);color:var(--text)}
.btn-secondary:hover{background:var(--border)}
.btn-danger{background:transparent;color:var(--danger);border:1px solid var(--danger)}
.btn-sm{padding:8px 12px;font-size:13px;border-radius:8px}

/* ── PLAN ── */
.canvas-wrap{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:14px;box-shadow:var(--shadow);margin-bottom:16px}
canvas{display:block;width:100%;height:auto;border-radius:10px;background:var(--sand)}
.legend{display:flex;gap:16px;font-size:12px;color:var(--text-muted);margin-top:10px;flex-wrap:wrap}
.legend i{display:inline-block;width:12px;height:12px;border-radius:3px;margin-right:5px;vertical-align:-1px;border:1px solid rgba(0,0,0,.15)}

/* ── KPIs ── */
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
@media(max-width:520px){.kpis{grid-template-columns:repeat(2,1fr)}}
.kpi{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:14px 10px;text-align:center;box-shadow:var(--shadow)}
.kpi b{display:block;font-size:24px;color:var(--brand-dark);font-weight:800}
.kpi span{font-size:11px;color:var(--text-muted);font-weight:700;text-transform:uppercase;letter-spacing:.03em}

.start-box{margin-top:6px;background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:14px 16px;font-size:14px;box-shadow:var(--shadow)}
.start-box b{color:var(--start)}
.alerts{margin-top:14px;display:flex;flex-direction:column;gap:8px}
.alert{background:var(--sand);color:var(--warning);border-radius:var(--radius-sm);padding:11px 13px;font-size:13px;font-weight:600;border-left:3px solid var(--warning)}

/* ── CHANTIERS list ── */
.chantier{display:flex;align-items:center;gap:14px;padding:14px;border:1px solid var(--border);border-radius:var(--radius);background:var(--card-bg);margin-bottom:10px;box-shadow:var(--shadow)}
.chantier .thumb{width:46px;height:46px;border-radius:12px;background:var(--sand);display:flex;align-items:center;justify-content:center;color:var(--brand);font-size:20px;flex-shrink:0}
.chantier .meta{flex:1;min-width:0}
.chantier .meta b{font-size:15px;display:block}
.chantier .meta span{display:block;color:var(--text-muted);font-size:12px}
.chantier .meta .date{font-size:11px;color:var(--text-muted);opacity:.85}
.empty{text-align:center;color:var(--text-muted);padding:40px 20px}
.empty i{font-size:40px;opacity:.4;display:block;margin-bottom:12px}

/* ── AIDE ── */
.help-block{margin-bottom:18px}
.help-block h4{font-size:15px;margin-bottom:6px;color:var(--brand-dark)}
.help-block p{font-size:14px;color:var(--text);line-height:1.6}

/* ── BOTTOM NAV (mobile) ── */
.bottom-nav{display:none;position:fixed;bottom:0;left:0;right:0;height:calc(60px + env(safe-area-inset-bottom));background:var(--card-bg);border-top:1px solid var(--border);z-index:200;justify-content:space-around;align-items:center;padding:0 4px env(safe-area-inset-bottom);box-shadow:var(--shadow-up)}
.bottom-nav-item{display:flex;flex-direction:column;align-items:center;gap:3px;padding:6px 10px;border:none;background:none;color:var(--text-muted);font-size:11px;font-weight:600;border-radius:8px;min-width:46px}
.bottom-nav-item i{font-size:18px}
.bottom-nav-item.active{color:var(--brand)}

/* ── TOAST ── */
#toast-container{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);z-index:9998;display:flex;flex-direction:column;gap:8px;align-items:center;pointer-events:none}
.toast{background:var(--text);color:var(--bg);padding:12px 18px;border-radius:var(--radius-sm);font-size:14px;font-weight:600;box-shadow:var(--shadow-lg);animation:toastIn .25s ease}
.toast.warning{background:var(--warning);color:#fff}
.toast.success{background:var(--success);color:#fff}
@keyframes toastIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

/* ── responsive ── */
@media(max-width:820px){
  .sidebar{transform:translateX(-100%)}
  .sidebar.open{transform:translateX(0)}
  .main{margin-left:0}
  .hamburger{display:block}
  .topbar-logo-mobile{display:block}
  .topbar-title{display:none}
  .bottom-nav{display:flex}
  .content{padding:16px 14px 84px}
}