/* =====================================================================
   ERP CARTERA · SISTEMA DE DISEÑO
   Estética: minimalismo refinado tipo Apple. Claridad sobre adorno.
   Modo claro + oscuro automático. Responsive (sidebar fijo PC / colapsable móvil).
   ===================================================================== */

:root {
  /* Colores · claro */
  --bg:           #f5f5f7;
  --surface:      #ffffff;
  --surface-2:    #fbfbfd;
  --border:       #e3e3e8;
  --border-strong:#d2d2d7;
  --text:         #1d1d1f;
  --text-2:       #6e6e73;
  --text-3:       #a1a1a6;
  --accent:       #0071e3;
  --accent-hover: #0077ed;
  --accent-soft:  #e8f1fd;
  --green:        #34c759;  --green-soft:#e7f8ec;
  --orange:       #ff9f0a;  --orange-soft:#fff3e0;
  --red:          #ff3b30;  --red-soft:#ffeceb;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.04), 0 1px 3px rgba(0,0,0,.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,.06), 0 1px 4px rgba(0,0,0,.04);
  --shadow-lg: 0 12px 40px rgba(0,0,0,.10);
  --radius:   14px;
  --radius-sm: 10px;
  --radius-lg: 20px;
  --sidebar-w: 250px;
  --topbar-h: 60px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg:#000000; --surface:#1c1c1e; --surface-2:#161618;
    --border:#2c2c2e; --border-strong:#3a3a3c;
    --text:#f5f5f7; --text-2:#98989d; --text-3:#636366;
    --accent:#0a84ff; --accent-hover:#409cff; --accent-soft:#0a2540;
    --green:#30d158; --green-soft:#10301a;
    --orange:#ff9f0a; --orange-soft:#3a2a08;
    --red:#ff453a; --red-soft:#3a1512;
    --shadow-sm:0 1px 2px rgba(0,0,0,.4);
    --shadow-md:0 4px 16px rgba(0,0,0,.5);
    --shadow-lg:0 12px 40px rgba(0,0,0,.6);
  }
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--accent); text-decoration: none; }
h1,h2,h3 { font-weight: 600; letter-spacing: -0.01em; }

/* ---------------- Layout / Shell ---------------- */
.app-shell { display: flex; min-height: 100vh; }

.sidebar {
  width: var(--sidebar-w);
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  position: fixed; inset: 0 auto 0 0; z-index: 40;
  transition: transform .28s cubic-bezier(.4,0,.2,1);
}
.sidebar-brand {
  height: var(--topbar-h); display: flex; align-items: center; gap: .6rem;
  padding: 0 1.4rem; font-weight: 600; font-size: 1.05rem;
  border-bottom: 1px solid var(--border);
}
.sidebar-brand .dot { width: 22px; height: 22px; border-radius: 7px;
  background: linear-gradient(135deg, var(--accent), #5ac8fa); }
.sidebar-nav { padding: .8rem .7rem; overflow-y: auto; flex: 1; }
.sidebar-nav .group-label {
  font-size: .7rem; text-transform: uppercase; letter-spacing: .06em;
  color: var(--text-3); padding: 1rem .8rem .4rem; font-weight: 600;
}
.nav-item {
  display: flex; align-items: center; gap: .7rem;
  padding: .6rem .8rem; border-radius: var(--radius-sm);
  color: var(--text-2); font-weight: 500; margin-bottom: 2px;
  transition: background .15s, color .15s;
}
.nav-item svg { width: 19px; height: 19px; flex-shrink: 0; stroke-width: 1.8; }
.nav-item:hover { background: var(--surface-2); color: var(--text); }
.nav-item.active { background: var(--accent-soft); color: var(--accent); }
.nav-item.active svg { color: var(--accent); }

.main { flex: 1; margin-left: var(--sidebar-w); display: flex; flex-direction: column; min-width: 0; }

.topbar {
  height: var(--topbar-h); background: rgba(255,255,255,.72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 30;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 1.6rem; gap: 1rem;
}
@media (prefers-color-scheme: dark){ .topbar{ background: rgba(28,28,30,.72);} }
.topbar h1 { font-size: 1.15rem; }
.topbar-actions { display: flex; align-items: center; gap: .8rem; }
.hamburger { display: none; background: none; border: none; cursor: pointer; color: var(--text); padding: .3rem; }
.hamburger svg { width: 24px; height: 24px; }

.icon-btn {
  position: relative; width: 38px; height: 38px; border-radius: 50%;
  display: grid; place-items: center; border: none; cursor: pointer;
  background: var(--surface-2); color: var(--text-2); transition: background .15s;
}
.icon-btn:hover { background: var(--border); color: var(--text); }
.icon-btn svg { width: 19px; height: 19px; }
.icon-btn .badge-count {
  position: absolute; top: -2px; right: -2px; background: var(--red); color: #fff;
  font-size: .65rem; font-weight: 700; min-width: 17px; height: 17px;
  border-radius: 9px; display: grid; place-items: center; padding: 0 4px;
}
.avatar {
  width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center;
  background: var(--accent); color: #fff; font-weight: 600; font-size: .85rem;
}

.content { padding: 1.8rem; max-width: 1280px; width: 100%; margin: 0 auto; }

/* ---------------- Cards ---------------- */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow-sm);
}
.card-pad { padding: 1.4rem; }
.card-head {
  padding: 1.1rem 1.4rem; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
}
.card-head h2 { font-size: 1.02rem; }

/* KPI */
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px,1fr)); gap: 1rem; margin-bottom: 1.6rem; }
.kpi {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1.3rem; box-shadow: var(--shadow-sm); transition: transform .15s, box-shadow .15s;
}
.kpi:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.kpi .label { font-size: .82rem; color: var(--text-2); font-weight: 500; display:flex; align-items:center; gap:.5rem;}
.kpi .label .ic { width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center; }
.kpi .value { font-size: 1.9rem; font-weight: 600; margin-top: .6rem; letter-spacing: -0.02em; }
.kpi .sub { font-size: .78rem; color: var(--text-3); margin-top: .2rem; }

/* ---------------- Botones ---------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: .6rem 1.1rem; border-radius: var(--radius-sm); border: 1px solid transparent;
  font-family: inherit; font-size: .92rem; font-weight: 500; cursor: pointer;
  transition: background .15s, transform .08s, box-shadow .15s; white-space: nowrap;
}
.btn:active { transform: scale(.97); }
.btn svg { width: 17px; height: 17px; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary { background: var(--surface); color: var(--text); border-color: var(--border-strong); }
.btn-secondary:hover { background: var(--surface-2); }
.btn-ghost { background: transparent; color: var(--text-2); }
.btn-ghost:hover { background: var(--surface-2); color: var(--text); }
.btn-danger { background: var(--red); color: #fff; }
.btn-danger:hover { filter: brightness(1.05); }
.btn-sm { padding: .4rem .7rem; font-size: .82rem; }

/* ---------------- Tablas ---------------- */
.table-wrap { overflow-x: auto; }
table.data { width: 100%; border-collapse: collapse; font-size: .9rem; }
table.data th {
  text-align: left; padding: .8rem 1rem; font-weight: 600; font-size: .76rem;
  text-transform: uppercase; letter-spacing: .04em; color: var(--text-3);
  border-bottom: 1px solid var(--border); white-space: nowrap;
}
table.data td { padding: .85rem 1rem; border-bottom: 1px solid var(--border); }
table.data tbody tr { transition: background .12s; }
table.data tbody tr:hover { background: var(--surface-2); }
table.data tbody tr:last-child td { border-bottom: none; }

/* ---------------- Badges de estado ---------------- */
.badge {
  display: inline-flex; align-items: center; gap: .35rem; padding: .25rem .6rem;
  border-radius: 100px; font-size: .76rem; font-weight: 600;
}
.badge::before { content:""; width:6px; height:6px; border-radius:50%; background: currentColor; }
.badge-green  { background: var(--green-soft);  color: #1a7a32; }
.badge-orange { background: var(--orange-soft); color: #b56b00; }
.badge-red    { background: var(--red-soft);    color: #c0291f; }
.badge-gray   { background: var(--surface-2);   color: var(--text-2); }
.badge-blue   { background: var(--accent-soft); color: var(--accent); }
@media (prefers-color-scheme: dark){
  .badge-green{color:#30d158}.badge-orange{color:#ff9f0a}.badge-red{color:#ff6961}
}

/* ---------------- Formularios ---------------- */
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap: 1.1rem; }
.field { display: flex; flex-direction: column; gap: .4rem; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: .82rem; font-weight: 500; color: var(--text-2); }
.input, .select, .textarea {
  width: 100%; padding: .65rem .85rem; font-family: inherit; font-size: .95rem;
  background: var(--surface); color: var(--text);
  border: 1px solid var(--border-strong); border-radius: var(--radius-sm);
  transition: border-color .15s, box-shadow .15s;
}
.input:focus, .select:focus, .textarea:focus {
  outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft);
}
.textarea { resize: vertical; min-height: 90px; }

/* ---------------- Alertas / estados vacíos ---------------- */
.alert { padding: .8rem 1rem; border-radius: var(--radius-sm); font-size: .88rem; margin-bottom: 1rem; }
.alert-error   { background: var(--red-soft);   color: #c0291f; }
.alert-success { background: var(--green-soft);  color: #1a7a32; }
.empty-state { text-align: center; padding: 3rem 1rem; color: var(--text-3); }
.empty-state svg { width: 48px; height: 48px; margin-bottom: 1rem; opacity: .5; }

.page-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: 1.4rem; flex-wrap: wrap; }
.page-head .sub { color: var(--text-2); font-size: .9rem; margin-top: .2rem; }

/* ---------------- Overlay móvil ---------------- */
.overlay {
  display: none; position: fixed; inset: 0; background: rgba(0,0,0,.4);
  z-index: 35; opacity: 0; transition: opacity .25s;
}
.overlay.show { display: block; opacity: 1; }

/* ---------------- Responsive ---------------- */
@media (max-width: 900px) {
  .sidebar { transform: translateX(-100%); box-shadow: var(--shadow-lg); }
  .sidebar.open { transform: translateX(0); }
  .main { margin-left: 0; }
  .hamburger { display: block; }
  .content { padding: 1.1rem; }
}

/* Aparición suave del contenido */
.fade-in { animation: fadeIn .4s ease both; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* ---------------- Animación de bienvenida (post-login) ---------------- */
.welcome {
  position: fixed; inset: 0; z-index: 1000;
  display: grid; place-items: center;
  background: radial-gradient(120% 120% at 50% 0%, var(--surface-2), var(--bg));
  animation: welcomeOut .7s ease 1.6s forwards;
}
.welcome-inner { text-align: center; animation: welcomeIn .8s cubic-bezier(.22,1,.36,1) both; }
.welcome-dot {
  display: block; width: 64px; height: 64px; margin: 0 auto 1.1rem;
  border-radius: 20px; background: linear-gradient(135deg, var(--accent), #5ac8fa);
  box-shadow: 0 14px 44px -8px var(--accent);
  animation: welcomePulse 1.6s ease-in-out infinite;
}
.welcome-hi { font-size: 1.9rem; font-weight: 700; letter-spacing: -.02em; color: var(--text-1); }
.welcome-sub { margin-top: .35rem; color: var(--text-3); font-size: .95rem; letter-spacing: .03em; }
@keyframes welcomeIn { from { opacity: 0; transform: translateY(14px) scale(.96); } to { opacity: 1; transform: none; } }
@keyframes welcomeOut { to { opacity: 0; visibility: hidden; pointer-events: none; } }
@keyframes welcomePulse { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.08); } }
@media (prefers-reduced-motion: reduce) {
  .welcome { animation: welcomeOut .3s ease 0s forwards; }
  .welcome-inner, .welcome-dot { animation: none; }
}

/* ---------------- Buscador de cliente (select con búsqueda) ---------------- */
.cli-search { position: relative; }
.cli-list {
  position: absolute; left: 0; right: 0; top: calc(100% + 4px); z-index: 25;
  background: var(--surface); border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm); box-shadow: var(--shadow-md);
  max-height: 260px; overflow-y: auto; padding: .3rem;
}
.cli-opt { padding: .55rem .7rem; border-radius: 8px; cursor: pointer; font-size: .92rem; }
.cli-opt:hover, .cli-opt.active { background: var(--accent-soft); color: var(--accent); }
.cli-opt.hidden { display: none; }
.cli-empty { padding: .6rem .7rem; color: var(--text-3); font-size: .88rem; }