:root{--navy:#0d213d;--navy-2:#142f53;--red:#e31b2b;--red-dark:#b91220;--gold:#f2b934;--ink:#152033;--muted:#657187;--line:#dbe1e9;--panel:#fff;--bg:#f3f6fa;--success:#16865d;--danger:#b4232c;--warning:#9a6700;--shadow:0 14px 38px rgba(13,33,61,.10)}*{box-sizing:border-box}html{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--bg)}body{margin:0;min-height:100vh}a{color:#195ca8;text-decoration:none}a:hover{text-decoration:underline}button,input,select,textarea{font:inherit}.site-header{min-height:78px;background:var(--navy);display:flex;align-items:center;justify-content:space-between;padding:10px clamp(18px,4vw,64px);position:sticky;top:0;z-index:20;box-shadow:0 8px 28px rgba(0,0,0,.18)}.brand{display:flex;align-items:center;gap:12px;color:white;text-decoration:none}.brand:hover{text-decoration:none}.brand img{width:86px;height:auto}.brand span{display:flex;flex-direction:column;line-height:1.05}.brand strong{font-size:1.05rem;letter-spacing:.02em}.brand small{font-size:.76rem;color:#c9d4e2;letter-spacing:.13em;text-transform:uppercase;margin-top:5px}.main-nav{display:flex;align-items:center;gap:4px}.main-nav a{color:#dce6f2;padding:10px 12px;border-radius:7px;font-size:.92rem;font-weight:650}.main-nav a:hover,.main-nav a.active{background:rgba(255,255,255,.10);color:#fff;text-decoration:none}.nav-toggle{display:none}.page-shell{width:min(1180px,calc(100% - 32px));margin:0 auto;padding:42px 0 80px}.site-footer{background:#08162a;color:#cbd5e1;display:flex;justify-content:space-between;gap:24px;padding:30px clamp(18px,4vw,64px);font-size:.9rem}.site-footer strong{color:white}.eyebrow{margin:0 0 8px;color:var(--red);font-size:.76rem;font-weight:850;letter-spacing:.14em;text-transform:uppercase}.page-heading,.exam-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:28px;margin-bottom:28px}.page-heading h1,.exam-heading h1{font-size:clamp(2rem,4vw,3rem);line-height:1.04;margin:0 0 10px;color:var(--navy)}.page-heading p,.exam-heading p{margin:0;color:var(--muted);max-width:760px;line-height:1.65}.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:26px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 17px;border-radius:8px;border:1px solid transparent;font-weight:750;cursor:pointer;text-decoration:none}.button:hover{text-decoration:none}.button-primary{background:var(--red);border-color:var(--red);color:white}.button-primary:hover{background:var(--red-dark)}.button-secondary{background:#fff;border-color:#bfc9d7;color:var(--navy)}.button-secondary:hover{background:#f7f9fc}.button-full{width:100%}.button-disabled{background:#e7ebf0;color:#7c8795;cursor:not-allowed}.muted{color:var(--muted)}.small{font-size:.86rem}.alert{padding:14px 17px;border-radius:9px;margin:0 0 20px;border:1px solid}.alert-success{background:#eaf8f2;border-color:#a6dfc9;color:#0d6748}.alert-danger{background:#fff0f1;border-color:#efb5ba;color:#8c1c25}.alert-warning{background:#fff8e6;border-color:#eed494;color:#765100}.login-layout{min-height:620px;display:grid;grid-template-columns:1.15fr .85fr;align-items:center;gap:clamp(32px,7vw,90px)}.login-message h1{font-size:clamp(2.6rem,6vw,5.2rem);line-height:.95;margin:0 0 24px;color:var(--navy);max-width:780px}.login-message>p:not(.eyebrow){font-size:1.12rem;line-height:1.75;color:var(--muted);max-width:730px}.feature-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:30px}.feature-list span{background:#e8eef6;color:var(--navy);border-radius:7px;padding:12px 14px;font-weight:700}.login-card{max-width:460px;width:100%;justify-self:end;border-top:5px solid var(--red)}.login-card h2,.form-card h2{color:var(--navy);font-size:1.65rem;margin:0 0 8px}.form-card label,.login-card label{display:flex;flex-direction:column;gap:7px;font-weight:700;margin:18px 0}.form-card small,.login-card small{font-weight:400;color:var(--muted)}input,select,textarea{width:100%;border:1px solid #bfc9d7;border-radius:8px;background:#fff;color:var(--ink);padding:11px 12px;outline:none}input:focus,select:focus,textarea:focus{border-color:#377bc2;box-shadow:0 0 0 3px rgba(55,123,194,.14)}textarea{resize:vertical}.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px}.stat-grid.three{grid-template-columns:repeat(3,1fr)}.stat-card{background:var(--navy);color:white;border-radius:12px;padding:24px;box-shadow:var(--shadow)}.stat-card strong{font-size:2.15rem;display:block}.stat-card span{display:block;color:#c9d5e4;margin-top:5px;font-size:.9rem}.bank-progress{display:grid;grid-template-columns:1fr 2fr auto;align-items:center;gap:24px;margin-bottom:24px}.bank-progress h2{margin:0;color:var(--navy)}.bank-progress p{margin:6px 0 0;color:var(--muted)}.progress{height:10px;background:#e6ebf1;border-radius:999px;overflow:hidden}.progress span{display:block;height:100%;background:linear-gradient(90deg,var(--red),#f05461);border-radius:inherit}.section-title{display:flex;justify-content:space-between;align-items:center;gap:18px;margin-bottom:18px}.section-title h2{margin:0;color:var(--navy)}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:13px 12px;border-bottom:1px solid #e5e9ef;vertical-align:top}th{font-size:.76rem;text-transform:uppercase;letter-spacing:.08em;color:#637087;background:#f7f9fc}tbody tr:hover{background:#fafbfd}.score-pill{display:inline-block;border-radius:999px;padding:5px 9px;font-weight:800;font-size:.82rem}.score-excellent{background:#dff5eb;color:#0c6a49}.score-good{background:#e5f0ff;color:#175da5}.score-borderline{background:#fff2cc;color:#7d5600}.score-low{background:#ffe4e6;color:#96212b}.course-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.course-card{border:1px solid var(--line);border-left:5px solid var(--red);border-radius:10px;padding:20px}.course-card h3{margin:0 0 18px;color:var(--navy)}dl{margin:0}.course-card dl{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.course-card dt,.source-grid dt{font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:800}.course-card dd,.source-grid dd{margin:4px 0 0;font-weight:650}.empty-state{text-align:center;padding:38px;color:var(--muted)}.resource-grid,.assessment-grid{display:grid;gap:18px}.resource-card{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:20px}.file-icon{width:64px;height:64px;border-radius:12px;background:var(--navy);color:white;display:grid;place-items:center;font-weight:900;font-size:.85rem}.resource-card h2,.assessment-card h2{margin:3px 0 8px;color:var(--navy)}.resource-card p{margin:0 0 5px;color:var(--muted)}.assessment-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.assessment-card{display:flex;flex-direction:column;align-items:flex-start}.assessment-meta{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:14px}.assessment-meta span{background:#e8eef6;color:var(--navy);border-radius:999px;padding:5px 9px;font-size:.76rem;font-weight:750}.assessment-card>p{color:var(--muted);line-height:1.6;flex:1}.assessment-status{display:flex;flex-wrap:wrap;gap:14px;font-size:.84rem;color:#59667b;margin:12px 0 18px}.timer{background:var(--navy);color:white;border-radius:12px;padding:15px 20px;text-align:center;min-width:155px;position:sticky;top:96px}.timer span{display:block;font-size:.73rem;text-transform:uppercase;letter-spacing:.08em;color:#c7d4e5}.timer strong{display:block;font-size:1.5rem;margin-top:3px}.exam-form{display:grid;gap:18px}.question-card{border:1px solid var(--line);background:white;border-radius:12px;padding:24px;margin:0;box-shadow:0 8px 24px rgba(13,33,61,.06)}.question-card legend{width:100%;font-size:1.03rem;font-weight:780;line-height:1.5;color:var(--navy);padding:0 0 15px}.question-card legend span{display:inline-grid;place-items:center;width:32px;height:32px;background:var(--red);color:white;border-radius:50%;margin-right:10px}.answers{display:grid;gap:10px}.answers label{display:grid;grid-template-columns:auto auto 1fr;align-items:center;gap:12px;padding:13px;border:1px solid #d7dde6;border-radius:9px;cursor:pointer}.answers label:hover{border-color:#8297b2;background:#f8fafc}.answers input{width:auto}.answer-letter{display:grid;place-items:center;width:28px;height:28px;border-radius:6px;background:#e9eef5;color:var(--navy);font-weight:850}.exam-submit{position:sticky;bottom:12px;background:var(--navy);color:white;border-radius:12px;padding:18px 22px;display:flex;align-items:center;justify-content:space-between;gap:20px;box-shadow:0 14px 35px rgba(0,0,0,.25)}.exam-submit p{margin:0;color:#dbe5f1}.result-hero{display:flex;justify-content:space-between;align-items:center;gap:28px;padding:30px;border-radius:14px;margin-bottom:24px;color:white;box-shadow:var(--shadow)}.result-hero.passed{background:linear-gradient(120deg,#0f6c4a,#169269)}.result-hero.review-needed{background:linear-gradient(120deg,#84222b,#b82f3a)}.result-hero .eyebrow{color:#fff0b8}.result-hero h1{margin:0 0 8px}.result-hero p{margin:0;color:#e9f1ef}.result-score{text-align:right}.result-score strong{font-size:3.4rem;line-height:1;display:block}.result-score span{display:block;margin-top:8px}.result-grid{display:grid;grid-template-columns:1.4fr .6fr;gap:20px;margin-bottom:34px}.area-row{display:grid;grid-template-columns:220px 1fr 50px;align-items:center;gap:14px;margin:16px 0}.area-row>div:first-child{display:flex;justify-content:space-between;gap:10px}.area-row b{text-align:right}.result-summary h2{margin-top:0;color:var(--navy)}.result-summary p{line-height:1.65;color:var(--muted)}.review-section{display:grid;gap:18px}.remediation-card{border-left:5px solid var(--red)}.question-number{font-size:.75rem;text-transform:uppercase;letter-spacing:.1em;color:var(--red);font-weight:850}.remediation-card h3{color:var(--navy);line-height:1.5}.answer-review{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:18px 0}.answer-review>div{padding:15px;border-radius:9px}.student-answer{background:#fff0f1;border:1px solid #efb7bc}.correct-answer{background:#eaf8f2;border:1px solid #a7dfca}.answer-review span{display:block;font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;font-weight:800;margin-bottom:5px}.teaching-note{background:#f6f8fb;border-radius:9px;padding:18px;margin:16px 0}.teaching-note h4{margin:0 0 8px;color:var(--navy)}.teaching-note p{margin:0;line-height:1.65}.source-grid{display:grid;grid-template-columns:.7fr 1.5fr 1fr;gap:14px}.source-grid>div{border-top:1px solid var(--line);padding-top:12px}.form-card.narrow{max-width:620px}.form-card.wide{max-width:1000px}.form-row{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.form-row>label{margin-top:0}.checkbox{flex-direction:row!important;align-items:center}.checkbox input{width:auto}.admin-grid{display:grid;grid-template-columns:370px 1fr;gap:20px;align-items:start}.admin-grid.two-forms{grid-template-columns:1fr 1fr}.admin-table-card{padding:0;overflow:hidden}.admin-table-card .section-title{padding:22px 24px 0}.actions{display:flex;gap:10px}.actions form{display:inline}.link-button{border:0;background:none;color:#195ca8;padding:0;cursor:pointer}.link-button:hover{text-decoration:underline}.password-alert code{font-size:1.05rem;background:#fff;padding:4px 7px;border-radius:5px}.assessment-admin-list{display:grid;gap:16px}.assessment-admin{display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center}.assessment-admin h2{margin:3px 0 7px;color:var(--navy)}.assessment-admin p{color:var(--muted);margin:0 0 7px}.assessment-controls{display:grid;grid-template-columns:110px 110px 120px auto auto;align-items:end;gap:10px}.assessment-controls label{display:flex;flex-direction:column;gap:5px;font-size:.76rem;font-weight:750}.assessment-controls .checkbox{padding-bottom:12px}.filter-bar{display:grid;grid-template-columns:2fr 1fr .7fr auto;gap:10px;margin-bottom:18px}.question-cell{min-width:430px}.option-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.install-shell{width:min(760px,calc(100% - 30px));margin:50px auto 90px}.install-brand{text-align:center;margin-bottom:24px}.install-brand img{width:150px}.install-brand h1{color:var(--navy);margin:4px 0}.install-card{margin:0 auto}.install-card hr{border:0;border-top:1px solid var(--line);margin:24px 0}
@media(max-width:900px){.main-nav{display:none;position:absolute;top:78px;right:16px;left:16px;background:var(--navy-2);padding:12px;border-radius:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.main-nav.open{display:flex}.nav-toggle{display:block;background:transparent;color:white;border:1px solid rgba(255,255,255,.35);border-radius:7px;padding:8px 11px}.login-layout{grid-template-columns:1fr;min-height:auto}.login-card{justify-self:stretch;max-width:none}.login-message h1{font-size:3rem}.stat-grid,.stat-grid.three{grid-template-columns:repeat(2,1fr)}.bank-progress{grid-template-columns:1fr}.course-grid,.assessment-grid{grid-template-columns:1fr}.result-grid{grid-template-columns:1fr}.admin-grid,.admin-grid.two-forms{grid-template-columns:1fr}.assessment-admin{grid-template-columns:1fr}.assessment-controls{grid-template-columns:repeat(2,1fr)}.filter-bar{grid-template-columns:1fr 1fr}.option-grid{grid-template-columns:1fr}.source-grid{grid-template-columns:1fr}.resource-card{grid-template-columns:auto 1fr}.resource-card .button{grid-column:1/-1}.area-row{grid-template-columns:1fr}.area-row b{text-align:left}}
@media(max-width:600px){.site-header{padding:8px 14px}.brand img{width:70px}.brand strong{font-size:.95rem}.page-shell{width:min(100% - 20px,1180px);padding-top:26px}.page-heading,.exam-heading{flex-direction:column}.page-heading h1,.exam-heading h1{font-size:2.2rem}.feature-list{grid-template-columns:1fr}.stat-grid,.stat-grid.three{grid-template-columns:1fr}.course-card dl{grid-template-columns:1fr}.site-footer{flex-direction:column}.exam-submit{position:static;flex-direction:column;align-items:stretch}.result-hero{flex-direction:column;align-items:flex-start}.result-score{text-align:left}.answer-review{grid-template-columns:1fr}.form-row{grid-template-columns:1fr}.assessment-controls{grid-template-columns:1fr}.filter-bar{grid-template-columns:1fr}.question-cell{min-width:280px}.resource-card{grid-template-columns:1fr}.file-icon{width:52px;height:52px}}
.button-row{display:flex;gap:10px;flex-wrap:wrap}.inline-assign{display:grid;grid-template-columns:minmax(170px,1fr) 88px auto;gap:7px;align-items:center;min-width:390px}.inline-assign .button{min-height:40px;padding:8px 12px}.inline-assign input,.inline-assign select{padding:9px 10px}.actions{white-space:nowrap;flex-wrap:wrap}@media(max-width:900px){.inline-assign{min-width:340px}}@media(max-width:600px){.button-row{width:100%}.button-row .button{flex:1}.inline-assign{grid-template-columns:1fr;min-width:230px}}
.report-section{margin-top:24px}

/* 2026-07-21 Surface Pro and medium-screen header correction */
html,body{max-width:100%}.site-header{width:100%;max-width:100%;left:0;right:0}.brand{flex:0 0 auto;min-width:0}.brand-logo-link{display:inline-flex;align-items:center;flex:0 0 auto}.brand-division{white-space:nowrap}.main-nav{min-width:0}
@media(max-width:1550px){
  .site-header{padding-left:clamp(16px,3vw,36px);padding-right:clamp(16px,3vw,36px)}
  .main-nav{display:none;position:absolute;top:100%;right:16px;left:16px;background:var(--navy-2);padding:12px;border-radius:0 0 10px 10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch;max-height:calc(100vh - 86px);overflow-y:auto;overscroll-behavior:contain}
  .main-nav.open{display:flex}
  .nav-toggle{display:block;background:transparent;color:white;border:1px solid rgba(255,255,255,.35);border-radius:7px;padding:8px 11px;flex:0 0 auto}
}

/* 2026-07-21 Main-site palette alignment
   Keeps the Training Center layout and Surface Pro header correction intact
   while matching the current 1105 Drones public-site visual system. */
:root{
  --radar-black:#0B0F14;
  --panel:#131A22;
  --panel-2:#182029;
  --hairline:#28323D;
  --steel:#8A96A3;
  --mist:#E9EEF1;
  --green:#38D68C;
  --green-hover:#4FE8A0;
  --green-dim:#1F6B49;
  --amber:#E8A33D;
  --amber-dim:#7A5A22;
  --brand-red:#EF0417;

  /* Legacy Training Center variable aliases */
  --navy:var(--radar-black);
  --navy-2:var(--panel);
  --red:var(--green);
  --red-dark:var(--green-hover);
  --gold:var(--amber);
  --ink:var(--mist);
  --muted:var(--steel);
  --line:var(--hairline);
  --bg:var(--radar-black);
  --success:var(--green);
  --danger:var(--brand-red);
  --warning:var(--amber);
  --shadow:0 14px 38px rgba(0,0,0,.28);
}

html,body{background:var(--radar-black);color:var(--mist)}
body{color:var(--mist)}
a,.link-button{color:var(--green)}
a:hover,.link-button:hover{color:var(--green-hover)}

.site-header{
  background:rgba(11,15,20,.96);
  border-bottom:2px solid var(--brand-red);
  box-shadow:0 8px 28px rgba(0,0,0,.34);
}
.brand{color:var(--mist)}
.brand small{color:var(--steel)}
.main-nav a{color:var(--steel)}
.main-nav a:hover,.main-nav a.active{background:rgba(56,214,140,.08);color:var(--mist)}
.nav-toggle{color:var(--mist);border-color:var(--hairline)}
.nav-toggle:hover{border-color:var(--green);color:var(--green)}

.page-shell{background:transparent}
.site-footer{background:#080B0F;color:var(--steel);border-top:1px solid var(--hairline)}
.site-footer strong{color:var(--mist)}
.eyebrow,.question-number{color:var(--green)}
.page-heading h1,.exam-heading h1,.login-message h1,.login-card h2,.form-card h2,
.bank-progress h2,.section-title h2,.course-card h3,.resource-card h2,.assessment-card h2,
.result-summary h2,.remediation-card h3,.teaching-note h4,.assessment-admin h2,.install-brand h1{
  color:var(--mist)
}
.page-heading p,.exam-heading p,.login-message>p:not(.eyebrow),.bank-progress p,
.resource-card p,.assessment-card>p,.result-summary p,.assessment-admin p,.muted{
  color:var(--steel)
}

.card,.question-card,.course-card,.admin-table-card,.assessment-admin,.remediation-card{
  background:var(--panel);
  border-color:var(--hairline);
  box-shadow:var(--shadow)
}
.course-card{border-left-color:var(--green)}
.remediation-card{border-left-color:var(--brand-red)}

.button-primary{background:var(--green);border-color:var(--green);color:var(--radar-black)}
.button-primary:hover{background:var(--green-hover);border-color:var(--green-hover);color:var(--radar-black)}
.button-secondary{background:transparent;border-color:var(--amber);color:var(--amber)}
.button-secondary:hover{background:rgba(232,163,61,.10);color:var(--amber)}
.button-disabled{background:var(--panel-2);border-color:var(--hairline);color:#66717d}

.alert-success{background:rgba(56,214,140,.09);border-color:var(--green-dim);color:#8cf0bd}
.alert-danger{background:rgba(239,4,23,.09);border-color:#6f1a24;color:#ff9ba4}
.alert-warning{background:rgba(232,163,61,.09);border-color:var(--amber-dim);color:#f1c87f}

.feature-list span,.assessment-meta span,.answer-letter{
  background:var(--panel-2);color:var(--mist);border:1px solid var(--hairline)
}
.login-card{border-top-color:var(--green)}

input,select,textarea{
  background:var(--panel-2);
  border-color:var(--hairline);
  color:var(--mist)
}
input::placeholder,textarea::placeholder{color:#697582}
input:focus,select:focus,textarea:focus{
  border-color:var(--green);
  box-shadow:0 0 0 3px rgba(56,214,140,.14)
}
select option{background:var(--panel-2);color:var(--mist)}

.stat-card{background:var(--panel);border:1px solid var(--hairline);color:var(--mist)}
.stat-card span{color:var(--steel)}
.progress{background:#222c36}
.progress span{background:linear-gradient(90deg,var(--green),var(--green-hover))}

th{background:#0E141B;color:var(--steel);border-bottom-color:var(--hairline)}
td{border-bottom-color:var(--hairline)}
tbody tr:hover{background:var(--panel-2)}

.score-excellent{background:rgba(56,214,140,.12);color:#7cebad}
.score-good{background:rgba(56,214,140,.08);color:#a1f1c5}
.score-borderline{background:rgba(232,163,61,.12);color:#f0c16e}
.score-low{background:rgba(239,4,23,.11);color:#ff9aa3}

.file-icon{background:var(--panel-2);border:1px solid var(--green-dim);color:var(--green)}
.assessment-status{color:var(--steel)}
.timer,.exam-submit{background:var(--panel);border:1px solid var(--hairline);color:var(--mist)}
.timer span,.exam-submit p{color:var(--steel)}

.question-card legend{color:var(--mist)}
.question-card legend span{background:var(--green);color:var(--radar-black)}
.answers label{border-color:var(--hairline);background:var(--panel-2)}
.answers label:hover{border-color:var(--green-dim);background:#1C242D}

.result-hero.passed{background:linear-gradient(120deg,#123d2c,#1f6b49)}
.result-hero.review-needed{background:linear-gradient(120deg,#5a111a,#8d1824)}
.result-hero .eyebrow{color:#b8f4d4}
.result-hero p{color:#dfeae4}

.student-answer{background:rgba(239,4,23,.09);border-color:#6f1a24}
.correct-answer{background:rgba(56,214,140,.09);border-color:var(--green-dim)}
.teaching-note{background:var(--panel-2);border:1px solid var(--hairline)}
.source-grid>div{border-top-color:var(--hairline)}

.password-alert code{background:var(--panel-2);color:var(--mist);border:1px solid var(--hairline)}

/* Medium-screen menu uses the same main-site dark panel */
@media(max-width:1550px){
  .main-nav{background:var(--panel);border:1px solid var(--hairline);border-top:0}
}