:root{
  --bg:#f4f7fb; --panel:#ffffff; --primary:#0b1f3a; --primary2:#123a68; --accent:#00b7c2; --gold:#c9a227; --text:#1d2733; --muted:#6b7785; --border:#dce3ec; --danger:#b42318;
  --radius:16px; --radius-sm:10px; --shadow:0 10px 30px rgba(15,31,58,.06); --shadow-hover:0 16px 40px rgba(15,31,58,.12);
}
*{box-sizing:border-box}
body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;color:var(--text);background:var(--bg);line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}

/* ============ Login ============ */
.login-body{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#081a2f,#123a68)}
.login-card{width:410px;max-width:92vw;background:#fff;border-radius:18px;padding:32px;box-shadow:0 25px 60px rgba(0,0,0,.25)}
.brand-box{display:flex;gap:14px;align-items:center;margin-bottom:26px}
.brand-icon{width:54px;height:54px;border-radius:16px;background:linear-gradient(135deg,var(--primary),var(--accent));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:26px}
.brand-icon.small{width:38px;height:38px;font-size:19px;border-radius:12px}
.brand-box h1{font-size:22px;margin:0;color:var(--primary)}
.brand-box p{margin:4px 0 0;color:var(--muted)}
.login-form label{display:block;font-size:13px;font-weight:700;margin:16px 0 7px}
.login-form input{width:100%;padding:13px;border:1px solid var(--border);border-radius:10px;font-size:15px;transition:border-color .15s,box-shadow .15s}
.login-form button{width:100%;margin-top:22px;background:var(--primary);color:#fff;border:0;border-radius:10px;padding:14px;font-size:15px;font-weight:700;cursor:pointer;transition:background .15s}
.login-form button:hover{background:var(--primary2)}
.login-footer{text-align:center;color:var(--muted);font-size:12px;margin:22px 0 0}
.alert{padding:12px;border-radius:10px;margin-bottom:12px}
.alert-error{background:#fee4e2;color:var(--danger)}

/* ============ App layout ============ */
.app-body{display:flex;min-height:100vh}
.sidebar{width:260px;background:linear-gradient(180deg,var(--primary),#0a1c34);color:#fff;padding:20px 16px;position:fixed;top:0;bottom:0;left:0;overflow-y:auto}
.sidebar-brand{display:flex;gap:12px;align-items:center;margin-bottom:30px}
.sidebar-brand strong{display:block;letter-spacing:.5px}
.sidebar-brand span{font-size:12px;color:#b7c6d8}
.sidebar nav a{display:block;color:#d8e4f2;text-decoration:none;padding:12px 14px;border-radius:10px;margin-bottom:6px;font-weight:600;transition:background .15s,color .15s,box-shadow .15s}
.sidebar nav a:hover{background:rgba(255,255,255,.10);color:#fff}
.sidebar nav a.active{background:rgba(255,255,255,.14);color:#fff;box-shadow:inset 3px 0 0 var(--accent)}

.main-content{margin-left:260px;width:calc(100% - 260px);padding:28px}
.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;gap:16px;flex-wrap:wrap}
.topbar h1{margin:0;color:var(--primary);font-size:28px;letter-spacing:-.3px}
.topbar p{margin:6px 0 0;color:var(--muted)}
.user-box{text-align:right}
.user-box span{display:block;font-weight:700}
.user-box small{display:block;color:var(--muted);margin-bottom:6px}
.user-box a{color:var(--primary2);font-weight:700;text-decoration:none}
.user-box a:hover{text-decoration:underline}

/* ============ Cards & metrics ============ */
.cards-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-bottom:20px}
.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);transition:box-shadow .2s ease}
.card:hover{box-shadow:var(--shadow-hover)}
.metric{position:relative;overflow:hidden}
.metric::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:linear-gradient(180deg,var(--accent),var(--primary2));opacity:.85}
.metric span{display:block;color:var(--muted);font-size:13px;font-weight:700}
.metric strong{display:block;font-size:34px;line-height:1.1;color:var(--primary);margin-top:8px;letter-spacing:-.5px}
.section-title{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px;flex-wrap:wrap}
.section-title h2{margin:0;color:var(--primary);font-size:19px;display:flex;align-items:center;gap:10px}
.section-title h2::before{content:"";width:4px;height:18px;border-radius:3px;background:var(--gold);display:inline-block}
.section-title a{color:var(--primary2);font-weight:700;text-decoration:none}
.section-title a:hover{text-decoration:underline}

/* ============ Tables ============ */
.table-card{overflow-x:auto}
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:13px;border-bottom:1px solid var(--border);font-size:14px;vertical-align:top}
th{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.4px;background:#fafbfd;position:sticky;top:0}
tbody tr{transition:background .12s}
tbody tr:nth-child(even) td{background:#fafbfd}
tbody tr:hover td{background:#eef4fb}

/* ============ Badges ============ */
.badge{display:inline-block;background:#e7f7f8;color:#036a70;border-radius:999px;padding:5px 10px;font-size:12px;font-weight:700;line-height:1.4}

/* ============ Shared buttons (base; page-level styles override) ============ */
.btn,.btn-primary{display:inline-block;border:0;border-radius:var(--radius-sm);background:var(--primary);color:#fff;padding:10px 14px;font-weight:700;text-decoration:none;cursor:pointer;transition:background .15s,box-shadow .15s}
.btn:hover,.btn-primary:hover{background:var(--primary2)}
.btn-secondary{display:inline-block;border:1px solid var(--border);border-radius:var(--radius-sm);background:#fff;color:var(--primary);padding:9px 13px;font-weight:700;text-decoration:none;cursor:pointer;transition:background .15s}
.btn-secondary:hover{background:#eef4fb}
.btn-small{display:inline-block;border:0;border-radius:var(--radius-sm);background:var(--primary2);color:#fff;padding:7px 10px;font-size:12px;font-weight:700;text-decoration:none;cursor:pointer}

/* ============ Shared alerts (base; page-level styles override) ============ */
.notice-ok,.alert-ok{background:#dcfce7;color:#166534;border:1px solid #86efac;padding:12px 14px;border-radius:var(--radius-sm);margin-bottom:12px}
.notice-error{background:#fee2e2;color:#991b1b;border:1px solid #fecaca;padding:12px 14px;border-radius:var(--radius-sm);margin-bottom:12px}

/* ============ Global form focus (UX; additive, not overriding page borders) ============ */
input:focus,select:focus,textarea:focus{outline:none;box-shadow:0 0 0 3px rgba(0,183,194,.18)}

/* ============ Responsive ============ */
@media(max-width:1200px){
  .cards-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media(max-width:900px){
  .sidebar{position:static;width:100%;min-height:auto;overflow-y:visible}
  .app-body{display:block}
  .main-content{margin-left:0;width:100%;padding:18px}
  .cards-grid{grid-template-columns:1fr 1fr}
  .topbar{display:block}
  .topbar h1{font-size:23px}
  .user-box{text-align:left;margin-top:12px}
  th,td{padding:10px;font-size:13px}
}
@media(max-width:560px){
  .cards-grid{grid-template-columns:1fr}
  .login-card{padding:24px}
  .main-content{padding:14px}
  .metric strong{font-size:28px}
}

/* ============ Sprint 36: unified visual system ============ */
:root{
  --bg:#eef3f8;
  --panel:#ffffff;
  --panel-soft:#f7f9fc;
  --primary:#0b2748;
  --primary2:#164f7d;
  --accent:#05a8b5;
  --accent-soft:#dff7f8;
  --gold:#d7a928;
  --text:#172536;
  --muted:#607086;
  --border:#d7e0ea;
  --border-strong:#bdcad8;
  --success:#087a55;
  --warning:#9a6200;
  --danger:#b42318;
  --info:#1766a3;
  --radius:14px;
  --radius-sm:9px;
  --shadow:0 5px 18px rgba(11,39,72,.07);
  --shadow-hover:0 10px 26px rgba(11,39,72,.11);
  --control-height:44px;
  --content-max:1680px;
  --sidebar-width:248px;
}

html{scroll-behavior:smooth;background:var(--bg)}
body{font-size:15px;background:var(--bg)}
::selection{background:rgba(5,168,181,.22);color:var(--primary)}
.sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}
a,button,input,select,textarea{font:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{outline:3px solid rgba(5,168,181,.45);outline-offset:2px;box-shadow:0 0 0 2px #fff}
button,input,select,textarea{min-height:var(--control-height)}
input,select,textarea{border:1px solid var(--border-strong);border-radius:var(--radius-sm);background:#fff;color:var(--text);padding:10px 12px;transition:border-color .15s ease,box-shadow .15s ease,background .15s ease}
body.app-body input,body.app-body select,body.app-body textarea{width:100%;max-width:100%}
input:hover,select:hover,textarea:hover{border-color:#8fa5ba}
input:focus,select:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(5,168,181,.16)}
input:disabled,select:disabled,textarea:disabled{background:#edf1f5;color:#6d7886;cursor:not-allowed}
textarea{min-height:96px;resize:vertical}

/* Login */
.login-body{position:relative;isolation:isolate;width:100%;min-width:100%;padding:24px;background:radial-gradient(circle at 15% 15%,#164f7d 0,#0b2748 36%,#071c34 100%);overflow-x:hidden}
.login-body::before{content:"";position:fixed;inset:0;z-index:-1;background:linear-gradient(120deg,transparent 55%,rgba(5,168,181,.14));pointer-events:none}
.login-card{position:relative;width:min(440px,100%);max-width:none;padding:38px;border:1px solid rgba(255,255,255,.55);border-radius:22px;box-shadow:0 28px 80px rgba(0,0,0,.32);overflow:hidden}
.login-card::before{content:"";position:absolute;inset:0 0 auto;height:5px;background:var(--accent)}
.brand-box{margin-bottom:28px}
.brand-icon{flex:0 0 auto;background:var(--accent);box-shadow:0 8px 20px rgba(5,168,181,.26)}
.brand-box h1{font-size:23px;line-height:1.2;letter-spacing:-.25px}
.brand-box p{font-size:14px}
.login-eyebrow{margin:0 0 6px;color:var(--accent);font-size:11px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
.login-form label{font-size:13px;color:var(--primary)}
.login-form input{min-height:48px;padding:12px 14px}
.login-form button{min-height:48px;background:var(--primary);letter-spacing:.01em;box-shadow:0 8px 18px rgba(11,39,72,.2)}
.login-form button:hover{background:var(--primary2);box-shadow:0 10px 24px rgba(11,39,72,.28)}
.login-footer{border-top:1px solid var(--border);padding-top:18px}

/* App shell */
.app-body{display:flex;min-height:100vh;background:var(--bg)}
.sidebar{width:var(--sidebar-width);padding:22px 14px;background:#0a213d;border-right:1px solid rgba(255,255,255,.08);box-shadow:8px 0 30px rgba(9,31,57,.08);z-index:40}
.sidebar-brand{padding:0 6px 20px;margin-bottom:10px;border-bottom:1px solid rgba(255,255,255,.1)}
.sidebar-brand strong{font-size:15px;letter-spacing:.055em}
.sidebar-brand span{font-size:11px;letter-spacing:.055em;text-transform:uppercase;color:#a9bdd2}
.sidebar nav{display:grid;gap:3px;padding:8px 0 20px}
.sidebar nav a{position:relative;margin:0;padding:11px 13px;border-radius:9px;color:#cfdae7;font-size:14px;font-weight:650;line-height:1.25}
.sidebar nav a:hover{background:rgba(255,255,255,.085);text-decoration:none}
.sidebar nav a.active{background:#223c5d;box-shadow:inset 3px 0 0 var(--accent);color:#fff}
.sidebar nav a.active::after{content:"";position:absolute;right:12px;top:50%;width:6px;height:6px;border-radius:50%;background:var(--accent);transform:translateY(-50%)}
.main-content{margin-left:var(--sidebar-width);width:calc(100% - var(--sidebar-width));padding:30px clamp(22px,2.6vw,44px) 48px}
.main-content>*{width:100%;max-width:var(--content-max);margin-left:auto;margin-right:auto}
.topbar{padding:2px 0 18px;margin-bottom:22px;border-bottom:1px solid var(--border)}
.topbar h1{font-size:clamp(25px,2.2vw,32px);line-height:1.16;letter-spacing:-.55px}
.topbar p{max-width:920px;font-size:14px}
.user-box{min-width:170px;padding:10px 13px;background:rgba(255,255,255,.72);border:1px solid var(--border);border-radius:11px}
.user-box a{display:inline-block;padding:2px 0;color:var(--info)}

/* Content components */
.cards-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;margin-bottom:22px}
.card{padding:20px;border-color:var(--border);box-shadow:var(--shadow)}
.card:hover{box-shadow:var(--shadow)}
.metric{min-height:124px;display:flex;flex-direction:column;justify-content:center}
.metric::before{width:3px;background:var(--accent)}
.metric span{font-size:12.5px;line-height:1.35}
.metric strong{font-size:clamp(27px,2.25vw,34px);overflow-wrap:normal;word-break:normal}
.section-title{padding-bottom:10px;margin-bottom:14px;border-bottom:1px solid #e8edf3}
.section-title h2{font-size:19px;line-height:1.3}
.section-title h2::before{height:20px;background:var(--accent)}
.muted,.mini-muted{color:var(--muted)!important}

.table-card{max-width:100%;overflow-x:auto;overscroll-behavior-inline:contain;scrollbar-color:#9fb0c2 #edf2f7;scrollbar-width:thin}
.table-scroll{max-width:100%;overflow-x:auto;overscroll-behavior-inline:contain;scrollbar-color:#9fb0c2 #edf2f7;scrollbar-width:thin}
.table-scroll:focus-visible{outline-offset:-3px}
table{min-width:720px;border-collapse:separate;border-spacing:0}
th,td{padding:12px 13px;border-bottom:1px solid #e2e8f0;font-size:13.5px;line-height:1.42}
th{top:0;z-index:1;background:#f1f5f9;color:#506176;font-size:11.5px;font-weight:800;letter-spacing:.045em;white-space:nowrap}
tbody tr:nth-child(even) td{background:#f9fbfd}
tbody tr:hover td{background:#edf6f8}
td:has(>form),td:has(>.actions-row){min-width:150px}

.badge{max-width:100%;padding:5px 9px;background:var(--accent-soft);color:#086b73;border:1px solid rgba(5,168,181,.2);font-size:11.5px;letter-spacing:.015em;white-space:normal;text-align:center}
.badge[data-status="success"],.badge.ok,.badge.stock-ok,.badge.check-si{background:#e0f5ec!important;color:#08724f!important;border-color:#a9ddca!important}
.badge[data-status="warning"],.badge.warn,.badge.stock-low{background:#fff3d6!important;color:#875700!important;border-color:#efd495!important}
.badge[data-status="danger"],.badge.bad,.badge.check-no{background:#fee7e5!important;color:#a12a22!important;border-color:#f1b6b1!important}
.badge[data-status="info"]{background:#e6f1fb!important;color:#185e96!important;border-color:#b6d5ee!important}

.btn,.btn-primary,.btn-secondary,.btn-small,.btn-mini,.login-form button,button[class*="btn"]{min-height:40px;border-radius:var(--radius-sm);font-weight:750;line-height:1.2;transition:transform .12s ease,background .15s ease,border-color .15s ease,box-shadow .15s ease}
.btn:hover,.btn-primary:hover,.btn-secondary:hover,.btn-small:hover,.btn-mini:hover,button[class*="btn"]:hover{transform:translateY(-1px)}
.btn-primary,.btn:not(.green),button.btn{background:var(--primary);color:#fff}
.btn-secondary{border-color:var(--border-strong);color:var(--primary);background:#fff}
.btn.green{background:var(--success)!important}
.btn-danger,.danger-action,button[name*="eliminar"],button[value*="eliminar" i]{background:var(--danger)!important;color:#fff!important}
.actions-row,.inline-form{gap:8px;align-items:center;flex-wrap:wrap}

body.app-body label{color:#33465d;font-size:12.5px;font-weight:750;letter-spacing:.025em}
.form-grid{gap:15px!important}
.form-grid>*{min-width:0}
.form-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.form-block{padding:18px!important;background:var(--panel-soft);border:1px solid var(--border);border-radius:12px}
.notice,.notice-ok,.notice-error,.alert,.alert-ok,.alert-error{padding:13px 15px;border-radius:10px;font-size:14px}
.notice.success,.notice-ok,.alert-ok{background:#e0f5ec;color:#086445;border-color:#a9ddca}
.notice.error,.notice-error,.alert-error{background:#fee7e5;color:#9c251d;border-color:#f1b6b1}

.mobile-menu-toggle,.sidebar-backdrop{display:none}
.mobile-menu-toggle{position:fixed;left:14px;top:14px;z-index:65;width:48px;height:48px;padding:0;border:1px solid rgba(255,255,255,.18);border-radius:12px;background:var(--primary);box-shadow:0 8px 24px rgba(11,39,72,.24);cursor:pointer}
.mobile-menu-toggle .hamburger{display:grid;gap:5px;width:22px;margin:auto}
.mobile-menu-toggle .hamburger span{display:block;width:100%;height:2px;border-radius:3px;background:#fff;transition:transform .2s ease,opacity .2s ease}
body.nav-open .mobile-menu-toggle .hamburger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
body.nav-open .mobile-menu-toggle .hamburger span:nth-child(2){opacity:0}
body.nav-open .mobile-menu-toggle .hamburger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

@media(max-width:1200px){
  .cards-grid{grid-template-columns:repeat(auto-fit,minmax(210px,1fr))}
}
@media(max-width:900px){
  body.app-body{display:block}
  body.nav-open{overflow:hidden}
  .mobile-menu-toggle{display:block}
  .sidebar{position:fixed!important;inset:0 auto 0 0!important;width:min(320px,86vw)!important;min-height:100dvh!important;padding-top:76px!important;overflow-y:auto!important;transform:translateX(-105%);transition:transform .22s ease;box-shadow:16px 0 40px rgba(0,0,0,.25)}
  body.nav-open .sidebar{transform:translateX(0)}
  .sidebar-brand{position:absolute;left:76px;right:16px;top:17px;padding:0 0 13px;margin:0}
  .sidebar nav{padding-top:10px}
  .sidebar nav a{min-height:44px;display:flex;align-items:center}
  .sidebar-backdrop{display:block;position:fixed;inset:0;z-index:35;border:0;background:rgba(5,19,35,.58);opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease}
  body.nav-open .sidebar-backdrop{opacity:1;visibility:visible}
  .main-content{margin-left:0!important;width:100%!important;padding:78px 16px 38px!important}
  .topbar{display:flex;align-items:flex-start;margin-bottom:18px}
  .topbar h1{font-size:25px}
  .user-box{width:100%;text-align:left;margin-top:6px}
  .cards-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .card{padding:17px}
  table{min-width:700px}
}
@media(max-width:560px){
  .login-body{align-items:flex-start;padding:18px;overflow-y:auto}
  .login-card{margin:auto;padding:30px 22px;border-radius:18px}
  .brand-box{align-items:flex-start}
  .brand-icon{width:48px;height:48px;border-radius:13px}
  .brand-box h1{font-size:20px}
  .main-content{padding:76px 12px 30px!important}
  .topbar{gap:10px;padding-bottom:14px}
  .topbar h1{font-size:23px}
  .cards-grid{grid-template-columns:1fr;gap:11px}
  .metric{min-height:104px}
  .metric strong{font-size:29px}
  .section-title{align-items:flex-start}
  .section-title h2{font-size:18px}
  .form-grid,.form-grid.two{grid-template-columns:1fr!important}
  .form-grid>*{grid-column:1/-1!important}
  .form-actions{align-items:stretch;flex-direction:column}
  .form-actions>.btn,.form-actions>.btn-primary,.form-actions>.btn-secondary,.form-actions>button{width:100%;text-align:center}
  .actions-row,.inline-form{width:100%}
  .actions-row>.btn,.actions-row>.btn-primary,.actions-row>.btn-secondary{width:100%;text-align:center}
  th,td{padding:10px 11px;font-size:13px}
}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}
}