:root{
  --petrol:#0d4e50;
  --petrol-2:#123f46;
  --petrol-3:#0b3540;
  --ink:#16263b;
  --muted:#6f7d8e;
  --bg:#f4f5f2;
  --card:#ffffff;
  --line:#e2e7e4;
  --soft:#eef4f1;
  --mint:#dff3ea;
  --green:#267653;
  --red:#c94c43;
  --terracotta:#c95649;
  --amber:#d99123;
  --blue:#2b6ca3;
  --purple:#8655cc;
  --shadow:0 18px 55px rgba(22,49,56,.09);
  --shadow-soft:0 8px 24px rgba(22,49,56,.07);
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;background:var(--bg);color:var(--ink)}
body{font:14px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,Arial,sans-serif}
a{color:inherit}
button,input,select,textarea{font:inherit}

/* Shell */
.layout{min-height:100vh;display:grid;grid-template-columns:220px 1fr}
.sidebar{position:fixed;inset:0 auto 0 0;width:220px;background:linear-gradient(180deg,var(--petrol) 0%,var(--petrol-2) 72%,var(--petrol-3) 100%);color:#fff;padding:28px 18px 22px;display:flex;flex-direction:column;z-index:30;box-shadow:8px 0 30px rgba(15,47,54,.12);overflow:auto}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:#fff;margin:4px 8px 30px}
.brand strong{display:block;font-size:23px;letter-spacing:.02em;line-height:1}
.brand small{display:block;font-size:9px;line-height:1.45;letter-spacing:.15em;color:#d8e9e5;margin-top:4px}
.brand-mark{position:relative;display:inline-block;width:42px;height:42px;flex:0 0 auto}
.brand-mark:before{content:"";position:absolute;inset:0;border-radius:12px;background:rgba(255,255,255,.06)}
.brand-mark i,.brand-mark b{position:absolute;width:17px;height:31px;top:6px;background:#b9dfd6;border-radius:78% 18% 78% 18%;transform-origin:bottom center}
.brand-mark i{left:5px;transform:rotate(-27deg)}
.brand-mark b{right:5px;transform:rotate(27deg) scaleX(-1)}
.brand-mark.large{width:72px;height:72px;margin:0 auto 16px;background:var(--petrol);border-radius:20px}
.brand-mark.large i,.brand-mark.large b{width:25px;height:45px;top:12px}
.brand-mark.large i{left:12px}.brand-mark.large b{right:12px}
.side-nav{display:flex;flex-direction:column;gap:7px}
.side-nav a{display:flex;align-items:center;gap:12px;padding:12px 13px;border-radius:11px;text-decoration:none;color:#f6fbfa;font-weight:650;transition:.16s ease}
.side-nav a:hover{background:rgba(255,255,255,.09);transform:translateX(1px)}
.side-nav a.active{background:rgba(179,226,216,.19);box-shadow:inset 0 0 0 1px rgba(226,248,242,.09)}
.side-nav .icon{display:grid;place-items:center;width:21px;height:21px;color:#d8f0ea;font-size:20px;line-height:1}
.sidebar-footer{margin-top:auto;padding:22px 10px 4px;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-direction:column;color:#e4efed}
.sidebar-footer .mini-mark{width:28px;height:18px;margin-bottom:10px;border-left:7px solid #b9dfd6;border-right:7px solid #b9dfd6;border-radius:45%}
.sidebar-footer strong{font-size:15px}.sidebar-footer span{font-family:Georgia,serif;font-size:12px;line-height:1.35;margin-top:2px}.sidebar-footer em{margin-top:18px;font-size:9px;letter-spacing:.13em;line-height:1.6;color:#b5cbc7}
.workspace{grid-column:2;min-width:0}
.topbar{height:62px;background:rgba(255,255,255,.93);backdrop-filter:blur(16px);border-bottom:1px solid #e7ebe8;display:flex;align-items:center;gap:24px;padding:0 30px;position:sticky;top:0;z-index:20}
.topbar-brand{font-weight:750;white-space:nowrap;color:#243849}
.global-search{margin-left:auto;width:min(360px,34vw);height:38px;border:1px solid #dfe5e2;border-radius:11px;background:#f9faf9;display:flex;align-items:center;padding:0 11px;gap:7px}
.global-search span{font-size:19px;color:#829097}.global-search input{border:0;background:transparent;outline:0;width:100%;color:#344957;padding:0}
.user-area{display:flex;align-items:center;gap:9px;white-space:nowrap}.online-dot{width:8px;height:8px;border-radius:50%;background:#42a873;box-shadow:0 0 0 4px #e6f5ed}.avatar{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:#1b6565;color:white;font-weight:800}.user-copy{display:flex;flex-direction:column;line-height:1.15}.user-copy strong{font-size:12px}.user-copy small{font-size:10px;color:#809099;margin-top:3px}.logout-link{font-size:11px;color:#6e7f87;text-decoration:none;margin-left:5px}.logout-link:hover{color:var(--red)}
.content{max-width:1460px;margin:0 auto;padding:34px 32px 55px}

/* Headings & actions */
.page-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin:0 0 20px}
.page-heading h1{font-family:Georgia,"Times New Roman",serif;font-size:36px;line-height:1.05;letter-spacing:-.025em;margin:0;color:#17283f}.page-heading p{margin:7px 0 0;color:var(--muted);font-size:15px}.page-heading .eyebrow,.eyebrow{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif!important;font-size:10px!important;letter-spacing:.16em!important;font-weight:800!important;color:#72908c!important;margin:0 0 8px!important}.heading-actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}
.btn,button{display:inline-flex;align-items:center;justify-content:center;gap:7px;border:0;border-radius:10px;padding:10px 14px;text-decoration:none;font-weight:750;cursor:pointer;transition:.16s ease;line-height:1.2}.btn:hover,button:hover{transform:translateY(-1px);filter:brightness(.99)}.btn.primary{background:var(--petrol);color:#fff;box-shadow:0 7px 16px rgba(13,78,80,.14)}.btn.dark{background:#123f46;color:#fff}.btn.terracotta{background:var(--terracotta);color:#fff}.btn.outline{background:#fff;color:#27414b;border:1px solid #dbe3df}.btn.small{padding:8px 11px;font-size:12px}.btn.full{width:100%;padding:12px}.text-button{background:transparent;color:var(--red);padding:0;font-weight:700}.table-action{color:#146966;text-decoration:none;font-weight:760}.table-action:hover{text-decoration:underline}

/* Panels */
.panel{background:var(--card);border:1px solid var(--line);border-radius:17px;box-shadow:var(--shadow-soft);margin:18px 0;padding:20px}.panel-title-row{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:14px}.panel-title-row h3{font-size:18px;margin:0;color:#192c42}.panel-title-row p{margin:3px 0 0;color:#7a8892;font-size:12px}.panel-title-row>a{color:#146966;text-decoration:none;font-size:12px;font-weight:750}
.notice{background:#e8f5ee;border:1px solid #b9dec9;padding:11px 14px;border-radius:10px;color:#2c654b;margin-bottom:18px}

/* Dashboard */
.dashboard-heading{margin-bottom:15px}.kpi-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px;margin-bottom:17px}.kpi-card{background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:0 6px 18px rgba(25,55,61,.05);padding:15px;display:grid;grid-template-columns:42px 1fr auto;gap:11px;align-items:start;text-decoration:none;transition:.16s ease}.kpi-card:hover{transform:translateY(-2px);box-shadow:0 11px 25px rgba(25,55,61,.08)}.kpi-card>b{font-size:22px;color:#7f8c94;font-weight:400;align-self:center}.kpi-card small{display:block;color:#435766;font-weight:650;margin-bottom:2px}.kpi-card strong{display:block;font-size:28px;line-height:1.05;color:#12263d}.kpi-card div>span{display:block;color:#87939a;font-size:10px;margin-top:5px}.kpi-icon{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;font-size:22px;font-weight:800}.kpi-icon.teal{background:#e1f1ee;color:#176b68}.kpi-icon.aqua{background:#e6f3f1;color:#377f7a}.kpi-icon.blue{background:#e5f0fb;color:#2a6fa8}.kpi-icon.mint{background:#e5f4ed;color:#277451}.kpi-icon.amber{background:#fff1d9;color:#b26d12}
.edition-hero-card{min-height:218px;background:#fff;border:1px solid var(--line);border-radius:17px;box-shadow:var(--shadow-soft);display:grid;grid-template-columns:minmax(0,1.3fr) minmax(350px,.7fr);overflow:hidden;margin-bottom:17px}.edition-hero-main{padding:21px 22px;position:relative;z-index:2}.status-pill{display:inline-flex;align-items:center;gap:5px;border-radius:999px;padding:4px 9px;font-size:10px;font-weight:800}.status-pill.open{background:#e3f4e9;color:#26734f}.status-pill.closed{background:#f6e9e7;color:#99534c}.status-pill.neutral{background:#edf1f0;color:#61727a}.edition-hero-card h2{font-family:Georgia,"Times New Roman",serif;font-size:28px;margin:10px 0 6px;color:#17283f;letter-spacing:-.02em}.edition-meta{display:flex;gap:16px;flex-wrap:wrap;color:#687883;font-size:11px}.edition-quote{font-family:Georgia,"Times New Roman",serif;font-style:italic;color:#8d6752;font-size:17px;margin:12px 0 14px}.hero-actions{display:flex;gap:8px;flex-wrap:wrap}.edition-art{position:relative;overflow:hidden;background:linear-gradient(160deg,#eaf4f4 0%,#dae9eb 58%,#f2e9da 100%)}.edition-art:before{content:"";position:absolute;left:0;top:0;bottom:0;width:35%;background:linear-gradient(90deg,#fff,rgba(255,255,255,0));z-index:3}.edition-art .sun{position:absolute;width:86px;height:86px;border-radius:50%;background:rgba(255,232,177,.45);right:16%;top:15%}.edition-art .mountain{position:absolute;bottom:27%;background:#9eb9bd;clip-path:polygon(0 100%,47% 0,100% 100%)}.edition-art .m1{width:75%;height:50%;left:0;opacity:.7}.edition-art .m2{width:55%;height:34%;right:-7%;background:#7da3aa;opacity:.6}.edition-art .sea{position:absolute;left:0;right:0;bottom:0;height:29%;background:linear-gradient(#d7e9e9,#b9d7da)}.edition-art .art-copy{position:absolute;right:22px;top:28px;font-family:Georgia,serif;font-size:10px;letter-spacing:.36em;line-height:1.7;color:#276b78;text-align:center;z-index:4}
.labs-panel{padding:15px 16px 16px}.lab-card-grid{display:grid;grid-template-columns:repeat(8,minmax(115px,1fr));gap:9px}.lab-card{position:relative;border:1px solid #e3e8e5;border-radius:12px;background:#fff;padding:11px;min-width:0}.lab-card-head{display:flex;align-items:center;gap:7px;min-height:31px}.lab-card-head strong{font-size:11px;line-height:1.25}.lab-symbol{width:30px;height:30px;border-radius:50%;display:grid;place-items:center;background:#e5f2ef;font-size:16px;flex:0 0 auto}.lab-count{margin:8px 0 7px;display:flex;align-items:baseline;gap:4px}.lab-count b{font-size:20px}.lab-count span{font-size:10px;color:#859199}.balance-bar{height:5px;background:#edf1ef;border-radius:99px;overflow:hidden}.balance-bar i{display:block;height:100%;background:var(--petrol);border-radius:inherit}.lab-color-0 .lab-symbol{background:#ffe6df}.lab-color-1 .lab-symbol{background:#efe2ff}.lab-color-2 .lab-symbol{background:#dfedff}.lab-color-3 .lab-symbol{background:#fff0d7}.lab-color-4 .lab-symbol{background:#eedfff}.lab-color-5 .lab-symbol{background:#ffe6dd}.lab-color-6 .lab-symbol{background:#def1e8}.lab-color-7 .lab-symbol{background:#dff2e7}.tiny-status{display:inline-block;margin-top:7px;font-size:9px;color:#a3554d}.detail-grid{grid-template-columns:repeat(auto-fit,minmax(170px,1fr))}.lab-actions{display:flex;gap:10px;align-items:center;margin-top:10px;font-size:11px}.lab-actions a{color:#166a67;text-decoration:none;font-weight:750}.lab-actions form{margin:0}.empty{color:#778890}
.recent-panel{padding:0;overflow:hidden}.recent-panel .panel-title-row{padding:16px 18px 0}.table-wrap{overflow:auto}.data-table{width:100%;border-collapse:collapse}.data-table th{padding:11px 13px;background:#f7f8f7;color:#78858d;font-size:10px;text-align:left;font-weight:700;border-bottom:1px solid #e8ece9;white-space:nowrap}.data-table td{padding:11px 13px;border-bottom:1px solid #edf0ee;vertical-align:middle;color:#435561}.data-table tbody tr:hover td{background:#fbfcfb}.data-table tbody tr:last-child td{border-bottom:0}.person-cell{display:flex;align-items:center;gap:9px}.person-cell i{width:27px;height:27px;border-radius:50%;display:grid;place-items:center;background:#edf1f0;color:#475a64;font-size:9px;font-style:normal;font-weight:800}.person-cell strong{color:#24384b;font-size:12px}.lab-chip{display:inline-flex;padding:4px 8px;border-radius:999px;background:#edf4f2;color:#236864;font-size:10px;font-weight:750}.code-chip{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;background:#f0f3f2;border:1px solid #e0e5e3;border-radius:7px;padding:4px 7px;font-size:10px}.row-menu{text-decoration:none;color:#7d8a91;font-weight:800}.empty-row{text-align:center!important;color:#87939a;padding:28px!important}.big-number{font-size:18px;color:#1a3443}.muted-block{display:block;color:#89949a;margin-top:2px}.mini-edition-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:10px}.mini-edition{padding:13px;border:1px solid var(--line);border-radius:12px;text-decoration:none;background:#fafbfa}.mini-edition strong{display:block}.mini-edition span{display:block;color:#7b8991;font-size:11px;margin-top:3px}

/* Inner pages */
.edition-banner.compact{background:linear-gradient(135deg,#fff,#eef5f2);border:1px solid var(--line);border-radius:16px;padding:18px 20px;display:grid;grid-template-columns:1fr auto auto;gap:16px;align-items:center;box-shadow:var(--shadow-soft)}.edition-banner h2{font-family:Georgia,serif;font-size:25px;margin:8px 0 2px}.edition-banner p{margin:0;color:#75858d}.banner-stat{min-width:105px;text-align:center;padding:8px 14px;border-left:1px solid #e0e6e3}.banner-stat b{display:block;font-size:26px}.banner-stat span{font-size:10px;color:#7f8d94}
.filters{display:flex;align-items:center;gap:9px;flex-wrap:wrap;margin-bottom:15px}.filters input,.filters select{max-width:300px}.filters-wide input{min-width:260px}.filters-wide select{max-width:270px}.move-form{display:flex;gap:8px;align-items:center}.move-form select{min-width:190px}
.settings-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.setting-card{background:#fff;border:1px solid var(--line);border-radius:15px;padding:18px;display:flex;gap:14px;align-items:flex-start;box-shadow:var(--shadow-soft)}.setting-icon{width:42px;height:42px;border-radius:12px;background:#e5f2ef;color:#126764;display:grid;place-items:center;font-size:22px}.setting-card small{display:block;color:#819097;margin-bottom:3px}.setting-card strong{display:block;color:#23394a;margin-bottom:8px;word-break:break-all}.subtle{color:#72828b}
.form-panel{max-width:760px}.styled-form p{margin:0 0 16px}.styled-form label{display:block;font-weight:700;color:#304954;margin-bottom:5px}.styled-form .helptext{display:block;color:#89959b;font-size:10px;margin-top:5px}.form-actions{padding-top:8px}

/* Forms */
input,select,textarea{width:100%;border:1px solid #d4dcda;border-radius:10px;background:#fff;color:#273e49;padding:10px 11px;outline:none;transition:.15s}input:focus,select:focus,textarea:focus{border-color:#6ba49e;box-shadow:0 0 0 4px rgba(62,133,126,.10)}input[type=checkbox]{width:auto;margin-right:7px}

/* Auth */
.auth-shell{min-height:100vh;background:radial-gradient(circle at 18% 15%,rgba(43,133,121,.12),transparent 30%),linear-gradient(135deg,#f8f9f6,#edf2ef);display:grid;place-items:center;padding:24px}.auth-main{width:100%;display:grid;place-items:center}.login-card{width:min(460px,100%);background:#fff;border:1px solid #e0e7e3;border-radius:24px;padding:34px;box-shadow:0 28px 80px rgba(25,55,61,.13);text-align:center}.login-card h1{font-family:Georgia,serif;font-size:33px;margin:3px 0 5px}.login-sub{color:#7a8990;margin:0 0 23px}.login-form{text-align:left}.login-form label{display:block;font-weight:700;color:#344b56;margin:13px 0}.login-form input{margin-top:5px}.login-footer{display:block;color:#91a09f;letter-spacing:.13em;margin-top:22px}.error-box{background:#f9e8e5;color:#9b3f3a;border:1px solid #efcbc6;border-radius:10px;padding:10px 12px}

/* Responsive */
@media(max-width:1200px){.kpi-grid{grid-template-columns:repeat(3,1fr)}.lab-card-grid{grid-template-columns:repeat(4,1fr)}.edition-hero-card{grid-template-columns:1fr 330px}.global-search{display:none}}
@media(max-width:900px){.layout{display:block}.sidebar{position:static;width:auto;height:auto;min-height:0;padding:14px}.brand{margin:0 8px 14px}.side-nav{flex-direction:row;overflow:auto}.side-nav a{flex:0 0 auto}.sidebar-footer{display:none}.workspace{min-width:0}.topbar{position:static}.content{padding:24px 16px}.kpi-grid{grid-template-columns:repeat(2,1fr)}.edition-hero-card{grid-template-columns:1fr}.edition-art{display:none}.lab-card-grid{grid-template-columns:repeat(2,1fr)}.page-heading{align-items:flex-start;flex-direction:column}.settings-grid{grid-template-columns:1fr}.edition-banner.compact{grid-template-columns:1fr 1fr}.edition-banner.compact>div:first-child{grid-column:1/-1}}
@media(max-width:540px){.kpi-grid{grid-template-columns:1fr}.lab-card-grid{grid-template-columns:1fr}.topbar-brand{font-size:12px}.user-copy{display:none}.content{padding:18px 12px}.page-heading h1{font-size:30px}.hero-actions{flex-direction:column}.hero-actions .btn{width:100%}.filters>*{max-width:none!important;width:100%}.move-form{flex-direction:column;align-items:stretch}}

/* v0.2.1 — eliminazione protetta edizioni */
.btn.danger{background:#b93d35;color:#fff;box-shadow:0 7px 16px rgba(185,61,53,.16)}
.btn.danger:hover{background:#a9342d}
.danger-zone{margin-top:18px;border:1px solid #ead2cf;background:linear-gradient(135deg,#fff,#fff9f8);display:flex;align-items:center;justify-content:space-between;gap:24px}
.danger-zone h3{margin:4px 0 7px;color:#7e2d28;font-size:18px}.danger-zone p{margin:0;color:#805f5c;max-width:760px}.danger-eyebrow{color:#ae4038!important}
.delete-confirm-card{max-width:860px;margin:0 auto;border:1px solid #ead2cf;background:#fff;position:relative;overflow:hidden}.delete-confirm-card:before{content:"";position:absolute;left:0;top:0;bottom:0;width:5px;background:#b93d35}.danger-icon{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;background:#fae7e4;color:#ad3a32;font-weight:900;font-size:24px;margin-bottom:12px}.delete-confirm-card h2{margin:0 0 7px;color:#602521}.delete-confirm-card>div>p{margin:0;color:#6f6260}.delete-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:22px 0}.delete-stats div{padding:15px;border:1px solid #eee4e2;background:#fdf9f8;border-radius:12px;text-align:center}.delete-stats b{display:block;font-size:25px;color:#762d28}.delete-stats span{display:block;margin-top:3px;font-size:11px;color:#8c7773}.danger-warning,.safe-empty-note{padding:12px 14px;border-radius:10px;margin:0 0 19px}.danger-warning{background:#fff1ee;border:1px solid #f0cec9;color:#80342e}.safe-empty-note{background:#f5f8f6;border:1px solid #dce7e1;color:#546961}.delete-confirm-form label{display:block;font-weight:700;color:#4b3f3e;margin-bottom:8px}.delete-confirm-form input{width:100%;box-sizing:border-box;border:1px solid #d9c8c5;border-radius:10px;padding:11px 12px;font:inherit;outline:none}.delete-confirm-form input:focus{border-color:#b93d35;box-shadow:0 0 0 3px rgba(185,61,53,.09)}.danger-actions{display:flex;justify-content:flex-end;gap:9px;margin-top:16px}
@media(max-width:700px){.danger-zone{align-items:stretch;flex-direction:column}.delete-stats{grid-template-columns:repeat(2,1fr)}.danger-actions{flex-direction:column-reverse}.danger-actions .btn{width:100%}}


/* v0.2.2 — eliminazione studenti e scuole */
.student-delete-cell{width:1%;white-space:nowrap;text-align:right}.student-delete-cell form{margin:0}.btn.small{padding:8px 11px;font-size:11px}.school-danger-zone{margin-top:18px}.school-delete-stats{grid-template-columns:repeat(2,minmax(0,1fr));max-width:520px}
@media(max-width:700px){.student-delete-cell{width:auto}.school-delete-stats{grid-template-columns:1fr}}