/* ========================================================================
   FlipCalc — foglio di stile brand Ademas
   Palette: navy #072E45 · oro scuro #806C04 · oro #AA9D58 · beige #D5CEAB
   Stile pulito/elegante, niente dipendenze esterne (offline-ready).
   ======================================================================== */

:root {
    --navy: #072E45;
    --navy-700: #0a3a57;
    --navy-300: #3d6075;
    --oro-scuro: #806C04;
    --oro: #AA9D58;
    --oro-soft: #c4ba86;
    --beige: #D5CEAB;
    --beige-soft: #ece8d6;
    --bianco: #ffffff;
    --bg: #f4f5f3;
    --testo: #1d2a33;
    --testo-soft: #5b6770;
    --bordo: #e3e5e0;
    --ombra: 0 1px 3px rgba(7, 46, 69, .06), 0 6px 20px rgba(7, 46, 69, .07);
    --ombra-sm: 0 1px 2px rgba(7, 46, 69, .08);
    --radius: 14px;
    --radius-sm: 9px;
    --font: "Segoe UI", "Inter", system-ui, -apple-system, Roboto, Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    font-family: var(--font);
    color: var(--testo);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    line-height: 1.5;
}

a { color: var(--navy); text-decoration: none; }

/* ---------- LOGIN ---------------------------------------------------- */
.login-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background:
        radial-gradient(1200px 600px at 70% -10%, rgba(170, 157, 88, .18), transparent 60%),
        linear-gradient(160deg, #072E45 0%, #0a3a57 55%, #06283c 100%);
}

.login-card {
    width: 100%;
    max-width: 410px;
    background: var(--bianco);
    border-radius: 18px;
    box-shadow: 0 24px 60px rgba(0, 0, 0, .28);
    overflow: hidden;
}

.login-head {
    background: var(--navy);
    padding: 34px 36px 26px;
    text-align: center;
    border-bottom: 3px solid var(--oro);
}

.login-head img { height: 52px; width: auto; }

.login-head .sub {
    color: var(--oro-soft);
    font-size: 13px;
    letter-spacing: .14em;
    text-transform: uppercase;
    margin-top: 14px;
}

.login-body { padding: 30px 36px 36px; }

.login-body h1 {
    font-size: 20px;
    margin: 0 0 4px;
    color: var(--navy);
}

.login-body .hint {
    color: var(--testo-soft);
    font-size: 14px;
    margin: 0 0 22px;
}

.campo { margin-bottom: 16px; }

.campo label {
    display: block;
    font-size: 12.5px;
    font-weight: 600;
    color: var(--testo-soft);
    margin-bottom: 6px;
    letter-spacing: .02em;
}

.campo input {
    width: 100%;
    padding: 12px 14px;
    font-size: 15px;
    font-family: inherit;
    color: var(--testo);
    background: #fafbf9;
    border: 1px solid var(--bordo);
    border-radius: var(--radius-sm);
    transition: border-color .15s, box-shadow .15s;
}

.campo input:focus {
    outline: none;
    border-color: var(--oro);
    box-shadow: 0 0 0 3px rgba(170, 157, 88, .18);
    background: #fff;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 20px;
    font-size: 15px;
    font-weight: 600;
    font-family: inherit;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: transform .05s, background .15s, box-shadow .15s;
}

.btn-primary {
    width: 100%;
    background: var(--navy);
    color: #fff;
    box-shadow: var(--ombra-sm);
}
.btn-primary:hover { background: var(--navy-700); }
.btn-primary:active { transform: translateY(1px); }

.btn-oro { background: var(--oro); color: var(--navy); }
.btn-oro:hover { background: var(--oro-soft); }

.errore {
    background: #fdecec;
    color: #a5281f;
    border: 1px solid #f3c6c2;
    border-radius: var(--radius-sm);
    padding: 10px 13px;
    font-size: 13.5px;
    margin-bottom: 18px;
}

/* ---------- SHELL (logged-in) ---------------------------------------- */
.topbar {
    background: var(--navy);
    color: #fff;
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 0 26px;
    height: 64px;
    border-bottom: 3px solid var(--oro);
    box-shadow: var(--ombra-sm);
}

.topbar .logo { height: 30px; width: auto; display: block; }

.topbar .brand-sep {
    width: 1px; height: 26px; background: rgba(255, 255, 255, .18);
}

.topbar .appname {
    font-weight: 600;
    letter-spacing: .03em;
    font-size: 15px;
    color: #fff;
}
.topbar .appname b { color: var(--oro); font-weight: 700; }

.topbar nav { display: flex; gap: 4px; margin-left: 14px; }
.topbar nav a {
    color: rgba(255, 255, 255, .82);
    font-size: 14px;
    padding: 8px 14px;
    border-radius: 8px;
    transition: background .15s, color .15s;
}
.topbar nav a:hover { background: rgba(255, 255, 255, .08); color: #fff; }
.topbar nav a.attivo { background: rgba(170, 157, 88, .22); color: #fff; }

.topbar .spacer { flex: 1; }

.utente {
    display: flex; align-items: center; gap: 11px;
    font-size: 14px; color: rgba(255, 255, 255, .9);
}
.utente .avatar {
    width: 34px; height: 34px; border-radius: 50%;
    background: var(--oro); color: var(--navy);
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 14px;
}
.utente form { margin: 0; }
.utente .logout {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, .25);
    color: rgba(255, 255, 255, .85);
    padding: 6px 12px; border-radius: 8px; cursor: pointer;
    font-size: 13px; font-family: inherit;
}
.utente .logout:hover { background: rgba(255, 255, 255, .1); color: #fff; }

main.contenuto {
    max-width: 1180px;
    margin: 0 auto;
    padding: 34px 26px 60px;
}

.page-head {
    display: flex; align-items: flex-end; justify-content: space-between;
    gap: 20px; margin-bottom: 26px;
}
.page-head h1 {
    font-size: 24px; margin: 0 0 4px; color: var(--navy); font-weight: 700;
}
.page-head .pretitolo {
    font-size: 12px; letter-spacing: .16em; text-transform: uppercase;
    color: var(--oro-scuro); font-weight: 700; margin-bottom: 6px;
}
.page-head p { margin: 0; color: var(--testo-soft); font-size: 14.5px; }

/* ---------- CARD / METRICHE ------------------------------------------ */
.griglia-metriche {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 16px; margin-bottom: 26px;
}
.metrica {
    background: #fff; border: 1px solid var(--bordo);
    border-radius: var(--radius); padding: 18px 20px; box-shadow: var(--ombra);
}
.metrica .etichetta {
    font-size: 12px; text-transform: uppercase; letter-spacing: .08em;
    color: var(--testo-soft); font-weight: 600;
}
.metrica .valore { font-size: 26px; font-weight: 700; color: var(--navy); margin-top: 6px; }
.metrica.accent { border-top: 3px solid var(--oro); }

.card {
    background: #fff; border: 1px solid var(--bordo);
    border-radius: var(--radius); box-shadow: var(--ombra); overflow: hidden;
}
.card .card-head {
    padding: 16px 22px; border-bottom: 1px solid var(--bordo);
    display: flex; align-items: center; justify-content: space-between;
}
.card .card-head h2 { font-size: 15px; margin: 0; color: var(--navy); font-weight: 700; }
.card .card-body { padding: 22px; }

/* ---------- EMPTY STATE ---------------------------------------------- */
.empty {
    text-align: center; padding: 56px 24px;
}
.empty .icona {
    width: 76px; height: 76px; margin: 0 auto 20px;
    border-radius: 50%;
    background: var(--beige-soft);
    display: flex; align-items: center; justify-content: center;
    border: 1px solid var(--beige);
}
.empty .icona svg { width: 36px; height: 36px; stroke: var(--oro-scuro); }
.empty h3 { margin: 0 0 8px; color: var(--navy); font-size: 18px; }
.empty p { margin: 0 auto 24px; color: var(--testo-soft); max-width: 440px; font-size: 14.5px; }

.btn-lg { padding: 13px 26px; font-size: 15px; }

/* ---------- TABELLE / SEMAFORO (pronte per Task #3) ------------------ */
.tabella { width: 100%; border-collapse: collapse; font-size: 14px; }
.tabella thead th {
    background: var(--navy); color: #fff; text-align: left;
    padding: 11px 14px; font-weight: 600; font-size: 12.5px;
    letter-spacing: .02em; border-bottom: 2px solid var(--oro);
}
.tabella tbody td { padding: 10px 14px; border-bottom: 1px solid var(--bordo); }
.tabella tbody tr:nth-child(even) { background: #fafbf8; }

.chip {
    display: inline-block; padding: 3px 11px; border-radius: 999px;
    font-size: 12px; font-weight: 700; letter-spacing: .02em;
}
.chip-extra   { background: #e7f0fb; color: #1f5fa6; }
.chip-ottimo  { background: #e6f4e9; color: #2e7d32; }
.chip-linea   { background: #fcf7e3; color: #8a6d00; }
.chip-caro    { background: #fdeee7; color: #c0561f; }
.chip-allarme { background: #c62828; color: #fff; }
.chip-neutro  { background: #eceef0; color: #5b6770; }

footer.pie {
    text-align: center; color: var(--testo-soft); font-size: 12px;
    padding: 26px 20px 36px;
}
footer.pie b { color: var(--oro-scuro); }

/* ---------- TASK #3: upload, scelta foglio, risultati ---------------- */
.btn-ghost {
    background: #fff; color: var(--navy);
    border: 1px solid var(--bordo); box-shadow: var(--ombra-sm);
}
.btn-ghost:hover { background: #f3f4f1; }
.head-azioni { display: flex; gap: 10px; align-items: center; }

/* dropzone */
#dropzone {
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    gap: 14px; text-align: center;
    border: 2px dashed var(--oro-soft); border-radius: var(--radius);
    background: #fff; padding: 54px 24px; cursor: pointer;
    transition: border-color .15s, background .15s; max-width: 760px;
}
#dropzone:hover, #dropzone.over { border-color: var(--oro); background: #fffdf4; }
.dz-icona {
    width: 64px; height: 64px; border-radius: 50%; background: var(--beige-soft);
    display: flex; align-items: center; justify-content: center; border: 1px solid var(--beige);
}
.dz-icona svg { width: 30px; height: 30px; stroke: var(--oro-scuro); }
.dz-testo b { display: block; color: var(--navy); font-size: 16px; }
.dz-testo span { color: var(--testo-soft); font-size: 14px; }
.dz-file { background: var(--beige-soft); color: var(--navy); padding: 8px 16px;
    border-radius: 8px; font-size: 14px; }
.dz-azioni { display: flex; align-items: center; gap: 16px; margin-top: 18px; max-width: 760px; }
.dz-errore { color: #a5281f; font-size: 13.5px; }

/* scelta foglio */
.scelta-fogli { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px,1fr));
    gap: 16px; max-width: 900px; }
.scelta-fogli form { margin: 0; }
.foglio-card {
    width: 100%; display: flex; align-items: center; justify-content: space-between;
    background: #fff; border: 1px solid var(--bordo); border-left: 4px solid var(--oro);
    border-radius: var(--radius); padding: 20px 22px; cursor: pointer;
    box-shadow: var(--ombra); font-family: inherit; transition: transform .05s, box-shadow .15s;
}
.foglio-card:hover { box-shadow: 0 8px 26px rgba(7,46,69,.13); transform: translateY(-1px); }
.foglio-nome { font-size: 16px; font-weight: 700; color: var(--navy); }
.foglio-go { color: var(--oro-scuro); font-weight: 600; font-size: 14px; }

/* scenari STIMA */
.scenari { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.scenario { background: #fff; border: 1px solid var(--bordo); border-radius: var(--radius);
    padding: 22px 24px; box-shadow: var(--ombra); border-top: 4px solid var(--bordo); }
.scenario .sc-tag { font-size: 12px; text-transform: uppercase; letter-spacing: .08em;
    font-weight: 700; color: var(--testo-soft); }
.scenario .sc-val { font-size: 30px; font-weight: 800; color: var(--navy); margin: 8px 0 4px; }
.scenario .sc-note { font-size: 13px; color: var(--testo-soft); }
.sc-mig  { border-top-color: #2e7d32; }
.sc-real { border-top-color: var(--oro); }
.sc-peg  { border-top-color: #c0561f; }
.sc-real .sc-val { color: var(--oro-scuro); }
.forchetta { margin-top: 16px; padding: 12px 18px; background: var(--beige-soft);
    border-radius: var(--radius-sm); color: var(--navy); font-size: 14px; }

/* distribuzione CONFRONTO */
.distribuzione { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px,1fr)); gap: 12px; }
.distr-card { border-radius: var(--radius); padding: 16px 18px; text-align: center;
    box-shadow: var(--ombra-sm); border: 1px solid rgba(0,0,0,.04); }
.distr-card .distr-n { font-size: 30px; font-weight: 800; line-height: 1; }
.distr-card .distr-l { font-size: 12.5px; font-weight: 700; margin-top: 6px;
    text-transform: uppercase; letter-spacing: .03em; }

/* tabelle: helper */
.tabella th.num, .tabella td.num { text-align: right; }
.tabella th.center, .tabella td.center { text-align: center; }
.tabella td.desc { max-width: 460px; }
.tabella td.bold { font-weight: 700; color: var(--navy); }
.tabella tr.riga-cat td { background: var(--navy); color: var(--oro); font-weight: 700;
    font-size: 12.5px; letter-spacing: .04em; padding: 8px 14px; }
.tabella tr.riga-link { cursor: pointer; }
.tabella tr.riga-link:hover td { background: #fbf6e8; }
.vai { color: var(--oro-scuro); font-weight: 600; font-size: 13px; }

/* ---------- TASK 6: upload modalità, anteprima, confronto ------------ */
.sezione-form { font-size: 12px; text-transform: uppercase; letter-spacing: .08em;
    font-weight: 700; color: var(--oro-scuro); margin: 22px 0 10px; }
.modi { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px,1fr)); gap: 14px; max-width: 1000px; }
.modo { display: block; background: #fff; border: 1px solid var(--bordo); border-radius: var(--radius);
    padding: 16px 18px; cursor: pointer; transition: border-color .15s, box-shadow .15s; }
.modo:hover { border-color: var(--oro-soft); }
.modo input { margin-right: 8px; }
.modo:has(input:checked) { border-color: var(--oro); box-shadow: 0 0 0 3px rgba(170,157,88,.16); background: #fffdf4; }
.modo-titolo { font-weight: 700; color: var(--navy); display: inline; }
.modo-desc { display: block; color: var(--testo-soft); font-size: 13px; margin-top: 6px; }
.campo-cantiere { width: 100%; max-width: 520px; padding: 11px 14px; font-size: 15px; font-family: inherit;
    border: 1px solid var(--bordo); border-radius: var(--radius-sm); background: #fafbf9; }
.campo-cantiere:focus { outline: none; border-color: var(--oro); box-shadow: 0 0 0 3px rgba(170,157,88,.18); background:#fff; }
.dz-hint { color: var(--testo-soft); font-size: 13px; }

/* anteprima fogli */
.fogli-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(330px,1fr)); gap: 16px; max-width: 1000px; }
.foglio-card-form { margin: 0; }
.foglio-card2 { background: #fff; border: 1px solid var(--bordo); border-left: 4px solid var(--oro);
    border-radius: var(--radius); padding: 20px; box-shadow: var(--ombra); }
.fc-nome { font-size: 16px; font-weight: 700; color: var(--navy); margin-bottom: 12px; }
.tag-prezzato { font-size: 11px; background: #e6f4e9; color: #2e7d32; padding: 2px 8px; border-radius: 999px; margin-left: 6px; }
.tag-stima { font-size: 11px; background: #e7f0fb; color: #1f5fa6; padding: 2px 8px; border-radius: 999px; margin-left: 6px; }
.fc-righe div { display: flex; justify-content: space-between; padding: 5px 0; border-bottom: 1px dashed var(--bordo); font-size: 14px; }
.fc-righe span { color: var(--testo-soft); }
.fc-righe b { color: var(--navy); }
.fc-ribasso { margin-top: 12px; background: #fffaf0; border: 1px solid #f0e2c0; border-radius: 8px; padding: 10px 12px; font-size: 13px; }
.fc-ribasso-fonte { color: var(--testo-soft); font-size: 11px; margin-top: 4px; }

/* scenari Ademas + impresa */
.scenari { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.scenari-5 { grid-template-columns: repeat(5, 1fr); }
.scenario { background: #fff; border: 1px solid var(--bordo); border-radius: var(--radius);
    padding: 20px 22px; box-shadow: var(--ombra); border-top: 4px solid var(--bordo); }
.scenario .sc-tag { font-size: 12px; text-transform: uppercase; letter-spacing: .06em; font-weight: 700; color: var(--testo-soft); }
.scenario .sc-val { font-size: 27px; font-weight: 800; color: var(--navy); margin: 8px 0 4px; }
.scenario .sc-note { font-size: 12.5px; color: var(--testo-soft); }
.sc-mig { border-top-color: #2e7d32; } .sc-real { border-top-color: var(--oro); } .sc-peg { border-top-color: #c0561f; }
.sc-real .sc-val { color: var(--oro-scuro); }
.sc-lordo { border-top-color: var(--navy-300); } .sc-netto { border-top-color: var(--oro); }
.sc-pos { border-top-color: var(--navy); grid-column: span 1; }
.scenari .sc-pos { min-width: 280px; }
.sc-impresa-a { border-top-color: #1f5fa6; } .sc-impresa-b { border-top-color: #7a4fb0; }
.forchetta { margin-top: 16px; padding: 12px 18px; background: var(--beige-soft); border-radius: var(--radius-sm); color: var(--navy); font-size: 14px; }

/* form ribasso manuale */
.ribasso-form { display: flex; align-items: center; gap: 8px; justify-content: flex-end;
    margin: 16px 0 4px; font-size: 14px; color: var(--testo-soft); }
.ribasso-form input { width: 80px; padding: 7px 10px; border: 1px solid var(--bordo); border-radius: 8px; font-family: inherit; font-size: 14px; }

/* confronto duale */
.banner-duale .card-body { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.banner-duale { border-left: 4px solid var(--oro); margin-bottom: 22px; }
.bd-testo b { color: var(--navy); display: block; } .bd-testo span { color: var(--testo-soft); font-size: 13.5px; }
.bd-chips { display: flex; gap: 8px; flex-wrap: wrap; }
.lbl { display: block; font-size: 12px; font-weight: 700; color: var(--testo-soft); margin-bottom: 6px; text-transform: uppercase; letter-spacing: .04em; }
.select-grande { padding: 10px 12px; font-size: 14px; font-family: inherit; border: 1px solid var(--bordo);
    border-radius: var(--radius-sm); background: #fff; min-width: 240px; }
.duale-sel { display: flex; gap: 14px; align-items: flex-end; flex-wrap: wrap; }
.sintesi-duale { margin-top: 18px; padding: 14px 18px; background: var(--navy); color: #eef2f5; border-radius: var(--radius); font-size: 14.5px; }
.sintesi-duale b { color: #fff; } .sintesi-duale .ok { color: #8fe0a0; } .sintesi-duale .ko { color: #ffb3a8; }