:root{
  --os-sidebar:248px;
  --os-mobilebar:72px;
  --os-copper:#cf9367;
  --os-copper-2:#e0aa82;
  --os-surface:#15181f;
  --os-surface-2:#1a1e27;
  --os-surface-3:#202530;
  --os-border:#292f3b;
  --os-text:#f1f2f5;
  --os-muted:#8f98aa;
  --os-success:#54d6a0;
  --os-warning:#f4bf72;
}

/* Só ativa depois que /api/sessao confirma uma identidade real. */
.os-sidebar,.os-mobile-nav,.os-user-menu,.os-ai-fab{display:none}
body.os-shell-on{
  padding-left:var(--os-sidebar);
  min-height:100vh;
}
body.os-shell-on .topbar,
body.os-shell-on .function-profile-btn,
body.os-shell-on #function-modal{
  display:none !important;
}
body.os-shell-on .os-sidebar{display:flex}
body.os-shell-on .os-ai-fab{display:flex}

.os-sidebar{
  position:fixed;
  inset:0 auto 0 0;
  width:var(--os-sidebar);
  z-index:80;
  flex-direction:column;
  padding:18px 14px 14px;
  background:linear-gradient(180deg,#101217 0%,#0f1116 100%);
  border-right:1px solid var(--os-border);
}
.os-brand{
  display:flex;
  align-items:center;
  gap:11px;
  min-height:52px;
  padding:6px 8px 15px;
  border-bottom:1px solid rgba(255,255,255,.055);
}
.os-brand-mark{
  width:34px;height:34px;border-radius:10px;
  display:grid;place-items:center;
  border:1px solid rgba(207,147,103,.36);
  background:linear-gradient(145deg,rgba(207,147,103,.17),rgba(207,147,103,.035));
  color:var(--os-copper-2);
  font:700 15px 'Space Grotesk',sans-serif;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
}
.os-brand-copy{min-width:0}
.os-brand-copy strong{
  display:block;color:var(--os-text);font:600 14px 'Space Grotesk',sans-serif;
  letter-spacing:-.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis
}
.os-brand-copy span{display:block;color:var(--os-muted);font-size:10px;margin-top:1px;letter-spacing:.08em;text-transform:uppercase}

.os-nav{display:flex;flex-direction:column;gap:3px;padding:18px 4px;overflow:auto}
.os-nav-divider{height:1px;background:rgba(255,255,255,.055);margin:9px 8px}
.os-nav-label{padding:10px 10px 4px;color:#697284;font-size:9px;font-weight:700;letter-spacing:.12em;text-transform:uppercase}
.os-nav-button{
  width:100%;min-height:42px;border:1px solid transparent;border-radius:10px;
  display:flex;align-items:center;gap:10px;padding:8px 10px;
  background:transparent;color:#9aa3b4;cursor:pointer;text-align:left;
  font:500 13px Inter,sans-serif;transition:.16s ease;
}
.os-nav-button:hover{color:var(--os-text);background:rgba(255,255,255,.035)}
.os-nav-button.active{
  color:var(--os-text);background:#1a1d25;border-color:#2c323e;
  box-shadow:inset 3px 0 0 var(--os-copper);
}
.os-nav-icon{
  width:21px;height:21px;display:grid;place-items:center;flex:none;
  color:inherit;font-size:15px;opacity:.92
}
.os-nav-button.active .os-nav-icon{color:var(--os-copper-2)}
.os-nav-badge{
  margin-left:auto;min-width:20px;height:20px;border-radius:999px;padding:0 6px;
  display:grid;place-items:center;background:#222731;color:#8d96a8;font-size:9px
}

.os-profile-wrap{margin-top:auto;position:relative}
.os-profile{
  width:100%;display:flex;align-items:center;gap:10px;padding:10px;
  border:1px solid var(--os-border);border-radius:12px;background:#151820;color:var(--os-text);cursor:pointer;text-align:left
}
.os-avatar{
  width:34px;height:34px;border-radius:50%;display:grid;place-items:center;flex:none;
  background:rgba(207,147,103,.12);border:1px solid rgba(207,147,103,.28);
  color:var(--os-copper-2);font:700 12px 'Space Grotesk',sans-serif
}
.os-profile-copy{min-width:0;flex:1}
.os-profile-copy strong{display:block;font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.os-profile-copy span{display:block;font-size:9.5px;color:var(--os-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:1px}
.os-profile-chevron{font-size:11px;color:#70798b}
.os-user-menu{
  position:absolute;left:0;right:0;bottom:58px;z-index:90;padding:7px;
  background:#191c24;border:1px solid var(--os-border);border-radius:12px;
  box-shadow:0 18px 50px rgba(0,0,0,.38)
}
.os-user-menu.open{display:block}
.os-user-menu-head{padding:8px 9px 10px;border-bottom:1px solid var(--os-border);margin-bottom:5px}
.os-user-menu-head strong{font-size:12px;display:block}
.os-user-menu-head span{font-size:10px;color:var(--os-muted);display:block;margin-top:2px;overflow-wrap:anywhere}
.os-user-menu button{width:100%;border:0;background:transparent;color:#c6cad3;text-align:left;border-radius:8px;padding:9px;font:500 12px Inter;cursor:pointer}
.os-user-menu button:hover{background:#222630;color:white}

/* Novas superfícies do OS */
.os-view{
  min-height:100vh;
  padding:54px 38px 80px;
}
.os-view[hidden]{display:none!important}
.os-view-inner{max-width:1120px;margin:0 auto}
.os-page-head{display:flex;justify-content:space-between;align-items:flex-start;gap:24px;margin-bottom:26px}
.os-eyebrow{color:var(--os-copper-2);font-size:10px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;margin-bottom:6px}
.os-page-head h1{font-size:28px;margin:0 0 6px;letter-spacing:-.035em}
.os-page-head p{margin:0;color:var(--os-muted);font-size:13px;max-width:680px}
.os-date-pill{border:1px solid var(--os-border);border-radius:10px;background:#151820;color:#9ca5b5;padding:8px 11px;font-size:11px;white-space:nowrap}

.os-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-bottom:16px}
.os-metric{
  position:relative;overflow:hidden;padding:17px 18px;border-radius:14px;
  background:linear-gradient(145deg,#171a22,#14171e);border:1px solid var(--os-border)
}
.os-metric::after{content:"";position:absolute;width:82px;height:82px;border-radius:50%;right:-35px;top:-42px;background:rgba(207,147,103,.055)}
.os-metric-label{font-size:10px;color:var(--os-muted);letter-spacing:.03em}
.os-metric-value{font:600 25px 'Space Grotesk';margin-top:5px;color:var(--os-text);letter-spacing:-.03em}
.os-metric-note{font-size:10px;color:#6f7889;margin-top:4px}
.os-metric.accent{border-color:rgba(207,147,103,.26)}
.os-metric.accent .os-metric-value{color:var(--os-copper-2)}

.os-dashboard-grid{display:grid;grid-template-columns:minmax(0,1.16fr) minmax(300px,.84fr);gap:14px}
.os-panel{background:#151820;border:1px solid var(--os-border);border-radius:14px;padding:17px}
.os-panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:11px}
.os-panel-head h2{font-size:13px;margin:0;letter-spacing:-.01em}
.os-panel-head span{font-size:9px;color:#70798a;text-transform:uppercase;letter-spacing:.08em}
.os-empty-state{padding:25px 10px;text-align:center;color:#778091;font-size:12px}
.os-empty-state strong{display:block;color:#adb4c0;font-size:12px;margin-bottom:4px}

.os-client-mini{display:flex;align-items:center;gap:12px;padding:11px 3px;border-bottom:1px solid rgba(255,255,255,.055)}
.os-client-mini:last-child{border-bottom:0}
.os-client-code{width:35px;color:#717b8d;font-size:10px;flex:none}
.os-client-main{min-width:0;flex:1}
.os-client-main strong{display:block;font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.os-client-main span{display:block;font-size:10px;color:var(--os-muted);margin-top:2px}
.os-link-button{border:0;background:transparent;color:var(--os-copper-2);font:600 10px Inter;cursor:pointer;padding:6px}

.os-progress-item{padding:10px 0}
.os-progress-row{display:flex;justify-content:space-between;gap:10px;font-size:10.5px;color:#adb3bf;margin-bottom:6px}
.os-progress-row span:last-child{color:#70798b}
.os-progress-track{height:5px;background:#242933;border-radius:999px;overflow:hidden}
.os-progress-fill{height:100%;border-radius:inherit;background:linear-gradient(90deg,#b87b52,#d8a179)}
.os-progress-fill.muted{background:#4a5362}

.os-quick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:12px}
.os-quick{
  border:1px solid var(--os-border);background:#181b23;color:#cbd0d8;border-radius:10px;
  min-height:70px;padding:11px;text-align:left;cursor:pointer;transition:.15s ease
}
.os-quick:hover{border-color:rgba(207,147,103,.34);transform:translateY(-1px)}
.os-quick b{display:block;font-size:11px;margin-bottom:3px}
.os-quick span{font-size:9.5px;color:#7e8798}

.os-placeholder{max-width:760px;margin:8vh auto 0;text-align:center;padding:34px;border:1px solid var(--os-border);border-radius:16px;background:#151820}
.os-placeholder-icon{width:42px;height:42px;margin:0 auto 12px;border-radius:12px;display:grid;place-items:center;background:rgba(207,147,103,.09);border:1px solid rgba(207,147,103,.18);color:var(--os-copper-2)}
.os-placeholder h1{font-size:20px;margin:0 0 6px}
.os-placeholder p{font-size:12px;color:var(--os-muted);margin:0 auto;max-width:520px}
.os-placeholder .clients-button{margin-top:18px}

.os-ai-fab{
  position:fixed;right:22px;bottom:22px;z-index:75;align-items:center;gap:8px;
  height:43px;padding:0 14px;border-radius:999px;border:1px solid rgba(207,147,103,.35);
  background:#1a1717;color:#e0aa82;font:600 11px Inter;cursor:pointer;
  box-shadow:0 12px 40px rgba(0,0,0,.28)
}
.os-ai-fab:hover{background:#211b19}

/* Faz as telas legadas respirarem dentro do shell. */
body.os-shell-on .stage{padding-left:30px;padding-right:30px}
body.os-shell-on .browse{padding-top:54px}
body.os-shell-on #view-clientes{padding-top:54px}
body.os-shell-on #view-tools{padding-top:16px}

.os-mobile-nav{display:none}

@media(max-width:920px){
  :root{--os-sidebar:218px}
  .os-dashboard-grid{grid-template-columns:1fr}
  .os-metrics{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:720px){
  body.os-shell-on{padding-left:0;padding-bottom:var(--os-mobilebar)}
  body.os-shell-on .os-sidebar{display:none}
  body.os-shell-on .os-mobile-nav{display:flex}
  body.os-shell-on .os-ai-fab{display:none}
  .os-mobile-nav{
    position:fixed;z-index:90;left:10px;right:10px;bottom:9px;height:58px;
    align-items:center;justify-content:space-around;padding:5px 6px;
    border:1px solid var(--os-border);border-radius:17px;background:rgba(18,20,26,.96);
    backdrop-filter:blur(18px);box-shadow:0 12px 40px rgba(0,0,0,.42)
  }
  .os-mobile-nav button{border:0;background:transparent;color:#7f8899;min-width:56px;height:46px;border-radius:11px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;font:500 9px Inter;cursor:pointer}
  .os-mobile-nav button .os-nav-icon{font-size:15px;height:18px}
  .os-mobile-nav button.active{color:var(--os-copper-2);background:rgba(207,147,103,.08)}
  .os-view{padding:34px 16px 92px}
  .os-page-head{display:block;margin-bottom:20px}
  .os-page-head h1{font-size:23px}
  .os-date-pill{display:inline-flex;margin-top:12px}
  .os-metrics{grid-template-columns:1fr 1fr;gap:8px}
  .os-metric{padding:14px}
  .os-metric-value{font-size:21px}
  .os-quick-grid{grid-template-columns:1fr}
  body.os-shell-on .stage{padding-left:16px;padding-right:16px;padding-bottom:96px}
  body.os-shell-on .browse{padding:34px 16px 96px}
  body.os-shell-on #view-clientes{padding:34px 16px 96px}
}
@media(max-width:440px){
  .os-metrics{grid-template-columns:1fr}
}