#dpa-student-portal {
    width: 100%;
    max-width: 1180px;
    margin: 0 auto;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: #3c3c3c;
}

#dpa-student-portal * { box-sizing: border-box; }

.dpa-app {
    background: #f2f2f7;
    min-height: 620px;
    padding: 32px;
    border-radius: 24px;
}

.dpa-card {
    background: #fff;
    border-radius: 20px;
    padding: 28px;
    box-shadow: 0 5px 20px rgba(0,0,0,.07);
}

.dpa-auth-shell {
    display: grid;
    place-items: center;
}

.dpa-login-card { width: min(100%, 480px); }

.dpa-brand-mark {
    display: grid;
    place-items: center;
    width: 72px;
    height: 72px;
    margin: 0 auto 22px;
    border-radius: 22px;
    background: #1f9ede;
    color: #fff;
    font-weight: 800;
    font-size: 22px;
    letter-spacing: .04em;
}

.dpa-title {
    margin: 0 0 8px;
    font-size: clamp(27px, 4vw, 36px);
    line-height: 1.15;
    color: #3c3c3c;
}

.dpa-login-card .dpa-title,
.dpa-login-card .dpa-subtitle { text-align: center; }

.dpa-subtitle {
    margin: 0;
    color: #777;
    font-size: 16px;
    line-height: 1.55;
}

.dpa-form { margin-top: 26px; }

.dpa-label {
    display: block;
    margin: 0 0 7px;
    font-size: 14px;
    font-weight: 700;
}

.dpa-input {
    width: 100%;
    padding: 14px 16px;
    margin: 0 0 16px;
    border: 1px solid #d8d8dd;
    border-radius: 12px;
    background: #fff;
    font: inherit;
    font-size: 16px;
    outline: none;
}

.dpa-input:focus {
    border-color: #1f9ede;
    box-shadow: 0 0 0 3px rgba(31,158,222,.14);
}

.dpa-button,
.dpa-secondary-button {
    appearance: none;
    border: 0;
    border-radius: 12px;
    padding: 13px 20px;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
    transition: transform .15s ease, opacity .15s ease;
}

.dpa-button {
    background: #1f9ede;
    color: #fff;
}

.dpa-secondary-button {
    background: #fff;
    color: #3c3c3c;
    border: 1px solid #d8d8dd;
}

.dpa-button:not(:disabled):hover,
.dpa-secondary-button:not(:disabled):hover { transform: translateY(-1px); }

.dpa-button:disabled,
.dpa-secondary-button:disabled { cursor: wait; opacity: .65; }

.dpa-button-full { width: 100%; }

.dpa-divider {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 20px 0;
    color: #8a8a8f;
    font-size: 13px;
    text-transform: uppercase;
}

.dpa-divider::before,
.dpa-divider::after {
    content: "";
    height: 1px;
    flex: 1;
    background: #e3e3e8;
}

.dpa-login-note {
    margin: 18px 0 0;
    color: #777;
    font-size: 13px;
    line-height: 1.5;
    text-align: center;
}

.dpa-message {
    margin: 18px 0;
    padding: 12px 14px;
    border-radius: 10px;
    background: #fff4f4;
    border: 1px solid #f0c6c6;
    color: #8b2d2d;
    font-size: 14px;
    line-height: 1.45;
}

.dpa-hidden { display: none !important; }

.dpa-loading-card {
    min-height: 220px;
    display: grid;
    place-items: center;
    align-content: center;
    gap: 12px;
    color: #777;
    text-align: center;
}

.dpa-spinner {
    width: 36px;
    height: 36px;
    border: 4px solid #d8ecf7;
    border-top-color: #1f9ede;
    border-radius: 50%;
    animation: dpa-spin .8s linear infinite;
}

@keyframes dpa-spin { to { transform: rotate(360deg); } }

.dpa-portal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 24px;
}

.dpa-eyebrow {
    margin-bottom: 7px;
    color: #1f9ede;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: .12em;
}

.dpa-dashboard-grid {
    display: grid;
    grid-template-columns: minmax(0, .9fr) minmax(0, 1.4fr);
    gap: 22px;
    margin-bottom: 22px;
}

.dpa-section-heading {
    margin-bottom: 14px;
    color: #1f9ede;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: .05em;
    text-transform: uppercase;
}

.dpa-training-card h2 { margin: 0 0 10px; }
.dpa-training-card p { color: #666; line-height: 1.6; }

.dpa-profile-list { margin: 0; }
.dpa-profile-list > div {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding: 12px 0;
    border-bottom: 1px solid #eeeef2;
}
.dpa-profile-list > div:last-child { border-bottom: 0; }
.dpa-profile-list dt { color: #777; }
.dpa-profile-list dd { margin: 0; font-weight: 700; text-align: right; }

.dpa-badge {
    display: inline-block;
    padding: 4px 9px;
    border-radius: 999px;
    background: #e8f5fc;
    color: #147db2;
    font-size: 12px;
    text-transform: capitalize;
}

.dpa-debug-card {
    color: #666;
    font-size: 13px;
}
.dpa-debug-card p { margin: 7px 0; overflow-wrap: anywhere; }

@media (max-width: 760px) {
    .dpa-app { padding: 18px; border-radius: 18px; }
    .dpa-card { padding: 22px; }
    .dpa-portal-header { align-items: flex-start; flex-direction: column; }
    .dpa-dashboard-grid { grid-template-columns: 1fr; }
    .dpa-portal-header .dpa-secondary-button { width: 100%; }
}

/* --- v1.2 student progress dashboard --- */
.dpa-overview-card { margin-bottom: 22px; }
.dpa-overview-top { display:flex; align-items:center; justify-content:space-between; gap:24px; margin-bottom:22px; }
.dpa-overview-top h2, .dpa-panel-heading h2 { margin:0 0 5px; font-size:24px; }
.dpa-overview-top p, .dpa-panel-heading p { margin:0; color:#777; }
.dpa-progress-ring { --progress:0; width:92px; height:92px; flex:0 0 92px; border-radius:50%; display:grid; place-items:center; background:conic-gradient(#1f9ede calc(var(--progress) * 1%), #e7e7ec 0); position:relative; }
.dpa-progress-ring::after { content:""; position:absolute; inset:9px; background:#fff; border-radius:50%; }
.dpa-progress-ring span { position:relative; z-index:1; font-weight:800; font-size:20px; }
.dpa-stat-grid { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:12px; }
.dpa-stat { padding:16px; background:#f7f7fa; border:1px solid #ececf1; border-radius:14px; }
.dpa-stat-value { display:block; font-size:24px; font-weight:800; color:#303033; }
.dpa-stat-label { display:block; margin-top:3px; color:#777; font-size:13px; }
.dpa-tabs { display:flex; gap:8px; overflow-x:auto; padding:0 0 12px; margin:0 0 12px; scrollbar-width:thin; }
.dpa-tab { white-space:nowrap; appearance:none; border:1px solid #dcdce2; background:#fff; color:#555; padding:11px 16px; border-radius:999px; font:inherit; font-weight:700; cursor:pointer; }
.dpa-tab.is-active { background:#1f9ede; border-color:#1f9ede; color:#fff; }
.dpa-tab-panel { display:none; }
.dpa-tab-panel.is-active { display:block; }
.dpa-panel-heading { display:flex; justify-content:space-between; align-items:flex-end; gap:18px; margin-bottom:18px; }
.dpa-unit-list { display:grid; gap:18px; }
.dpa-unit-card { overflow:hidden; background:#fff; border-radius:20px; box-shadow:0 5px 20px rgba(0,0,0,.07); }
.dpa-unit-banner { display:flex; justify-content:space-between; align-items:center; gap:20px; padding:20px 22px; background:#1f9ede; color:#fff; }
.dpa-unit-banner span { display:block; opacity:.66; font-size:12px; font-weight:800; letter-spacing:.08em; }
.dpa-unit-banner h3 { margin:3px 0 0; color:#fff; font-size:20px; }
.dpa-unit-percent { font-size:22px; font-weight:800; }
.dpa-progress-track { height:6px; background:#e9edf0; }
.dpa-progress-track span { display:block; height:100%; background:#178ac2; }
.dpa-unit-quizzes { padding:8px 20px 12px; }
.dpa-quiz-row { display:grid; grid-template-columns:40px minmax(0,1fr) auto; align-items:center; gap:12px; padding:13px 0; border-bottom:1px solid #eeeeF2; }
.dpa-quiz-row:last-child { border-bottom:0; }
.dpa-quiz-icon { width:34px; height:34px; border-radius:50%; display:grid; place-items:center; background:#eeeeF3; color:#9a9aa0; font-weight:800; }
.dpa-quiz-icon.is-complete { background:#e5f5ec; color:#27834d; }
.dpa-quiz-copy { min-width:0; }
.dpa-quiz-copy strong, .dpa-quiz-copy span { display:block; }
.dpa-quiz-copy strong { color:#3c3c3c; }
.dpa-quiz-copy span { margin-top:3px; color:#7a7a80; font-size:13px; }
.dpa-result-score { display:inline-flex; min-width:58px; justify-content:center; padding:6px 9px; border-radius:999px; font-weight:800; font-size:13px; }
.dpa-score-pass { background:#e5f5ec; color:#267d49; }
.dpa-score-warn { background:#fff3d9; color:#8a641b; }
.dpa-score-low { background:#fde9e9; color:#9b3939; }
.dpa-not-started { color:#999; font-size:13px; }
.dpa-status-pass { color:#277c49; font-weight:700; font-size:13px; }
.dpa-status-review { color:#9b5c2b; font-weight:700; font-size:13px; }
.dpa-table-wrap { width:100%; overflow-x:auto; }
.dpa-score-table { width:100%; border-collapse:collapse; min-width:620px; }
.dpa-score-table th { padding:10px 12px; color:#777; font-size:12px; text-align:left; text-transform:uppercase; letter-spacing:.05em; border-bottom:1px solid #e8e8ed; }
.dpa-score-table td { padding:14px 12px; border-bottom:1px solid #eeeeF2; vertical-align:middle; }
.dpa-score-table tbody tr:last-child td { border-bottom:0; }
.dpa-score-table td:first-child strong, .dpa-score-table td:first-child small { display:block; }
.dpa-score-table td:first-child small { margin-top:3px; color:#999; }
.dpa-history-list { display:grid; }
.dpa-history-row { display:flex; align-items:center; justify-content:space-between; gap:18px; padding:15px 0; border-bottom:1px solid #eeeeF2; }
.dpa-history-row:last-child { border-bottom:0; }
.dpa-history-main strong, .dpa-history-main span { display:block; }
.dpa-history-main span { margin-top:4px; color:#777; font-size:13px; }
.dpa-history-result { display:flex; align-items:center; gap:10px; }
.dpa-empty-state { display:grid; gap:5px; padding:28px; text-align:center; background:#f7f7fa; border-radius:15px; color:#777; }
.dpa-empty-state strong { color:#444; }

@media (max-width: 760px) {
    .dpa-stat-grid { grid-template-columns:repeat(2,minmax(0,1fr)); }
    .dpa-overview-top { align-items:flex-start; }
    .dpa-panel-heading { align-items:flex-start; flex-direction:column; }
    .dpa-unit-banner { padding:17px; }
    .dpa-unit-banner h3 { font-size:18px; }
    .dpa-unit-quizzes { padding:7px 15px 10px; }
    .dpa-quiz-row { grid-template-columns:36px minmax(0,1fr) auto; gap:9px; }
    .dpa-history-row { align-items:flex-start; }
    .dpa-history-result { align-items:flex-end; flex-direction:column; }
}

@media (max-width: 480px) {
    .dpa-progress-ring { width:76px; height:76px; flex-basis:76px; }
    .dpa-progress-ring span { font-size:17px; }
    .dpa-stat-value { font-size:20px; }
    .dpa-quiz-row { grid-template-columns:34px minmax(0,1fr); }
    .dpa-quiz-row > .dpa-result-score, .dpa-quiz-row > .dpa-not-started { grid-column:2; justify-self:start; }
}


/* --- v1.3 interactive quizzes --- */
.dpa-quiz-row.dpa-quiz-launch {
    width: 100%;
    appearance: none;
    border: 0;
    background: transparent;
    color: inherit;
    font: inherit;
    text-align: left;
    cursor: pointer;
}
.dpa-quiz-row.dpa-quiz-launch:hover { background: #f8fbfd; }
.dpa-quiz-action {
    display: flex;
    align-items: flex-end;
    flex-direction: column;
    gap: 4px;
}
.dpa-quiz-action small {
    color: #1f9ede;
    font-size: 12px;
    font-weight: 800;
}
.dpa-table-action {
    appearance: none;
    border: 0;
    background: transparent;
    color: #1f9ede;
    font: inherit;
    font-weight: 800;
    cursor: pointer;
}
.dpa-quiz-app { min-height: 720px; }
.dpa-quiz-header {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 18px;
    margin-bottom: 16px;
}
.dpa-quiz-header-copy h1 {
    margin: 0;
    color: #3c3c3c;
    font-size: clamp(22px, 4vw, 32px);
}
.dpa-back-button {
    appearance: none;
    border: 0;
    background: transparent;
    padding: 8px 0;
    color: #1f9ede;
    font: inherit;
    font-weight: 800;
    cursor: pointer;
}
.dpa-question-count {
    color: #666;
    font-weight: 800;
}
.dpa-quiz-progress {
    height: 8px;
    margin-bottom: 24px;
    overflow: hidden;
    background: #e2e6ea;
    border-radius: 999px;
}
.dpa-quiz-progress span {
    display: block;
    height: 100%;
    background: #1f9ede;
    border-radius: inherit;
    transition: width .2s ease;
}
.dpa-question-card {
    max-width: 820px;
    margin: 0 auto;
}
.dpa-question-meta {
    margin-bottom: 10px;
    color: #1f9ede;
    font-size: 13px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: .05em;
}
.dpa-question-card h2 {
    margin: 0 0 20px;
    color: #303033;
    font-size: clamp(21px, 3vw, 28px);
    line-height: 1.35;
}
.dpa-question-figure {
    margin: 20px 0;
}
.dpa-question-figure img {
    display: block;
    width: 100%;
    max-height: 520px;
    object-fit: contain;
    border: 1px solid #e0e0e5;
    border-radius: 14px;
    background: #fff;
}
.dpa-answer-list {
    display: grid;
    gap: 12px;
}
.dpa-answer {
    width: 100%;
    display: grid;
    grid-template-columns: 28px 1fr;
    align-items: start;
    gap: 10px;
    appearance: none;
    border: 1px solid #dcdce2;
    background: #f8f8fa;
    color: #3c3c3c;
    padding: 15px 16px;
    border-radius: 13px;
    font: inherit;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
}
.dpa-answer:hover { border-color: #9bcfea; }
.dpa-answer.is-selected {
    border-color: #1f9ede;
    background: #eaf6fc;
}
.dpa-answer-radio {
    color: #1f9ede;
    font-size: 20px;
    line-height: 1;
}
.dpa-quiz-footer {
    max-width: 820px;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 16px;
    margin: 20px auto 0;
}
.dpa-quiz-footer .dpa-button { justify-self: end; }
.dpa-quiz-footer .dpa-secondary-button { justify-self: start; }
.dpa-answered-count {
    color: #777;
    font-size: 13px;
    font-weight: 700;
    text-align: center;
}
.dpa-result-hero {
    margin-bottom: 22px;
    text-align: center;
    border-top: 6px solid #1f9ede;
}
.dpa-result-hero.is-pass { border-top-color: #2c9a5f; }
.dpa-result-hero.is-review { border-top-color: #d08a35; }
.dpa-result-kicker {
    color: #777;
    font-size: 13px;
    font-weight: 900;
    letter-spacing: .09em;
}
.dpa-result-hero h1 {
    margin: 8px 0;
    color: #3c3c3c;
}
.dpa-big-score {
    margin: 8px 0;
    font-size: clamp(54px, 9vw, 84px);
    font-weight: 900;
    line-height: 1;
}
.dpa-result-hero.is-pass .dpa-big-score { color: #2c9a5f; }
.dpa-result-hero.is-review .dpa-big-score { color: #b76f22; }
.dpa-result-actions {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
    flex-wrap: wrap;
}
.dpa-review-list { display: grid; gap: 18px; }
.dpa-review-question {
    padding: 20px;
    border: 1px solid #e5e5ea;
    border-radius: 15px;
}
.dpa-review-heading {
    display: flex;
    justify-content: space-between;
    gap: 15px;
    margin-bottom: 8px;
    color: #777;
    font-size: 13px;
    font-weight: 800;
}
.dpa-review-question h3 {
    margin: 0 0 14px;
    color: #3c3c3c;
    line-height: 1.45;
}
.dpa-review-answer {
    display: flex;
    justify-content: space-between;
    gap: 14px;
    margin-top: 8px;
    padding: 12px 14px;
    background: #f8f8fa;
    border: 1px solid #ededf1;
    border-radius: 10px;
}
.dpa-review-answer.is-correct {
    background: #e8f6ee;
    border-color: #b9e3ca;
}
.dpa-review-answer.is-wrong {
    background: #fdeeee;
    border-color: #efc3c3;
}
.dpa-review-answer small {
    flex: 0 0 auto;
    font-weight: 800;
}

@media (max-width: 760px) {
    .dpa-quiz-header {
        grid-template-columns: 1fr auto;
    }
    .dpa-quiz-header-copy {
        grid-column: 1 / -1;
        grid-row: 2;
    }
    .dpa-question-count { grid-column: 2; grid-row: 1; }
    .dpa-quiz-footer {
        grid-template-columns: 1fr 1fr;
    }
    .dpa-answered-count {
        grid-column: 1 / -1;
        grid-row: 1;
    }
    .dpa-quiz-footer .dpa-secondary-button { grid-column: 1; grid-row: 2; }
    .dpa-quiz-footer .dpa-button { grid-column: 2; grid-row: 2; }
    .dpa-quiz-action { align-items: flex-end; }
}


/* v1.4 account registration */
.dpa-form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.dpa-field-help {
    margin: -7px 0 14px;
    color: #777777;
    font-size: 13px;
}

.dpa-auth-switch {
    margin: 20px 0 0;
    text-align: center;
    color: #666666;
}

.dpa-link-button {
    appearance: none;
    border: 0;
    background: transparent;
    padding: 0;
    color: #1f9ede;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
}

.dpa-link-button:hover,
.dpa-link-button:focus {
    text-decoration: underline;
}

@media (max-width: 560px) {
    .dpa-form-grid {
        grid-template-columns: 1fr;
        gap: 0;
    }
}


/* v1.5 class-enrollment gate */
.dpa-class-code-input {
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 700;
}

.dpa-enrollment-card {
    max-width: 560px;
}


/* --- v1.6 instructor/admin dashboard --- */
.dpa-admin-app { min-height: 720px; }
.dpa-admin-header { display:flex; align-items:center; justify-content:space-between; gap:18px; margin-bottom:18px; }
.dpa-admin-header-actions { display:flex; gap:10px; }
.dpa-admin-tabs { display:flex; gap:8px; margin-bottom:22px; padding:6px; background:#fff; border-radius:14px; box-shadow:0 3px 14px rgba(0,0,0,.05); }
.dpa-admin-tab { flex:1; appearance:none; border:0; background:transparent; color:#666; padding:11px 14px; border-radius:10px; font:inherit; font-weight:800; cursor:pointer; }
.dpa-admin-tab.is-active { background:#1f9ede; color:#fff; }
.dpa-admin-main { display:grid; gap:18px; }
.dpa-admin-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:16px; }
.dpa-admin-class-card { appearance:none; border:0; width:100%; padding:20px; border-radius:16px; background:#1f9ede; color:#fff; text-align:left; font:inherit; cursor:pointer; box-shadow:0 5px 18px rgba(0,0,0,.08); }
.dpa-admin-class-card:hover { transform:translateY(-1px); }
.dpa-admin-class-top { display:flex; align-items:flex-start; justify-content:space-between; gap:12px; font-size:19px; }
.dpa-admin-class-top > span { font-size:28px; line-height:1; opacity:.8; }
.dpa-admin-class-meta { display:flex; flex-wrap:wrap; gap:12px; margin-top:18px; align-items:center; font-size:14px; opacity:.95; }
.dpa-admin-code { font-family:ui-monospace,SFMono-Regular,Menlo,monospace; font-weight:900; letter-spacing:.08em; }
.dpa-admin-empty { text-align:center; padding:46px 28px; color:#777; }
.dpa-admin-empty h2 { margin:0 0 8px; color:#3c3c3c; }
.dpa-admin-form-card { max-width:680px; }
.dpa-admin-success { max-width:680px; margin:0 auto; text-align:center; }
.dpa-admin-success-mark,.dpa-admin-account-icon { display:grid; place-items:center; width:62px; height:62px; margin:0 auto 12px; border-radius:50%; background:#e5f5ec; color:#27834d; font-size:32px; font-weight:900; }
.dpa-admin-big-code { display:inline-block; margin:12px 0 18px; padding:16px 24px; border-radius:14px; background:#f2f2f7; color:#1f9ede; font-family:ui-monospace,SFMono-Regular,Menlo,monospace; font-size:38px; font-weight:900; letter-spacing:.12em; }
.dpa-admin-inline-actions { display:flex; flex-wrap:wrap; gap:10px; justify-content:center; }
.dpa-admin-qr-wrap { display:grid; justify-items:center; gap:12px; margin-top:22px; }
.dpa-admin-qr { width:min(100%,360px); height:auto; padding:10px; background:#fff; border:1px solid #e5e5ea; border-radius:14px; }
.dpa-admin-download { display:inline-block; text-decoration:none; }
.dpa-admin-class-detail-head { display:flex; align-items:center; justify-content:space-between; gap:18px; padding:18px 20px; border-radius:16px; background:#1f9ede; color:#fff; }
.dpa-admin-class-detail-head span,.dpa-admin-class-detail-head strong { display:block; }
.dpa-admin-class-detail-head span { font-size:12px; opacity:.8; }
.dpa-admin-class-detail-head strong { margin-top:4px; font-family:ui-monospace,SFMono-Regular,Menlo,monospace; font-size:22px; letter-spacing:.08em; }
.dpa-admin-class-tools { display:grid; gap:12px; }
.dpa-admin-rename { max-width:560px; margin:8px auto 0; padding-top:16px; border-top:1px solid #eeeef2; }
.dpa-admin-student-list { display:grid; }
.dpa-admin-student-row { width:100%; display:grid; grid-template-columns:48px minmax(0,1fr) auto; align-items:center; gap:14px; appearance:none; border:0; border-bottom:1px solid #eeeeF2; background:transparent; padding:14px 2px; color:inherit; font:inherit; text-align:left; cursor:pointer; }
.dpa-admin-student-row:last-child { border-bottom:0; }
.dpa-admin-student-row:hover { background:#f8fbfd; }
.dpa-admin-avatar { width:44px; height:44px; display:grid; place-items:center; border-radius:50%; background:#e8f5fc; color:#147db2; font-weight:900; }
.dpa-admin-student-copy { min-width:0; display:grid; gap:4px; }
.dpa-admin-student-copy strong { color:#3c3c3c; }
.dpa-admin-student-copy small { color:#777; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.dpa-admin-mini-progress { display:block; height:7px; overflow:hidden; border-radius:999px; background:#e7e7ec; }
.dpa-admin-mini-progress i { display:block; height:100%; background:#1f9ede; border-radius:inherit; }
.dpa-admin-student-score { font-weight:900; color:#1f9ede; }
.dpa-admin-attempt-list { display:grid; }
.dpa-admin-attempt-row { display:flex; align-items:center; justify-content:space-between; gap:16px; padding:14px 0; border-bottom:1px solid #eeeeF2; }
.dpa-admin-attempt-row:last-child { border-bottom:0; }
.dpa-admin-attempt-row > div:first-child { min-width:0; }
.dpa-admin-attempt-row strong,.dpa-admin-attempt-row small { display:block; }
.dpa-admin-attempt-row small { margin-top:4px; color:#777; }
.dpa-admin-attempt-row > div:last-child { text-align:right; }
.dpa-admin-account-card { max-width:560px; margin:0 auto; text-align:center; }
.dpa-admin-account-card h2 { margin:0 0 8px; }
.dpa-admin-stat-grid { grid-template-columns:repeat(3,minmax(0,1fr)); }

@media (max-width:760px) {
    .dpa-admin-header { align-items:flex-start; flex-direction:column; }
    .dpa-admin-header-actions,.dpa-admin-header-actions .dpa-button { width:100%; }
    .dpa-admin-grid { grid-template-columns:1fr; }
    .dpa-admin-tabs { position:sticky; top:0; z-index:5; }
    .dpa-admin-inline-actions { align-items:stretch; flex-direction:column; }
    .dpa-admin-inline-actions > * { width:100%; }
}

@media (max-width:480px) {
    .dpa-admin-student-row { grid-template-columns:42px minmax(0,1fr); }
    .dpa-admin-student-score { grid-column:2; }
    .dpa-admin-big-code { font-size:30px; }
    .dpa-admin-stat-grid { grid-template-columns:1fr; }
}


/* --- v1.7 class progress matrix --- */
.dpa-progress-card { padding: 20px; }
.dpa-progress-legend {
    display:flex;
    flex-wrap:wrap;
    gap:10px 18px;
    align-items:center;
    margin:0 0 14px;
    color:#686868;
    font-size:12px;
}
.dpa-progress-legend span { display:inline-flex; align-items:center; gap:6px; }
.dpa-progress-dot { width:9px; height:9px; border-radius:50%; background:#d8d8dd; }
.dpa-progress-dot.is-pass { background:#2e9b58; }
.dpa-progress-dot.is-warn { background:#d59a24; }
.dpa-progress-dot.is-low { background:#c94a4a; }

.dpa-progress-table-wrap {
    width:100%;
    overflow:auto;
    border:1px solid #e7e7ec;
    border-radius:14px;
    background:#fff;
}
.dpa-progress-table {
    width:max-content;
    min-width:100%;
    border-collapse:separate;
    border-spacing:0;
    font-size:13px;
}
.dpa-progress-table th,
.dpa-progress-table td {
    min-width:92px;
    padding:11px 10px;
    border-right:1px solid #eeeeF2;
    border-bottom:1px solid #eeeeF2;
    text-align:center;
    white-space:nowrap;
}
.dpa-progress-table th {
    position:sticky;
    top:0;
    z-index:2;
    background:#f6f7f9;
    color:#555;
    font-size:11px;
    text-transform:uppercase;
    letter-spacing:.04em;
}
.dpa-progress-table tr:last-child td { border-bottom:0; }
.dpa-progress-table th:last-child,
.dpa-progress-table td:last-child { border-right:0; }

.dpa-progress-table .dpa-progress-student {
    position:sticky;
    left:0;
    z-index:3;
    min-width:220px;
    max-width:260px;
    text-align:left;
}
.dpa-progress-table th.dpa-progress-student { background:#f6f7f9; }
.dpa-progress-table td.dpa-progress-student { background:#fff; }
.dpa-progress-student strong,
.dpa-progress-student small { display:block; }
.dpa-progress-student strong { color:#343434; }
.dpa-progress-student small {
    max-width:230px;
    margin-top:3px;
    overflow:hidden;
    color:#8a8a8a;
    text-overflow:ellipsis;
}
.dpa-progress-row { cursor:pointer; }
.dpa-progress-row:hover td { background:#f8fbfd; }
.dpa-progress-row:hover td.dpa-progress-student { background:#f8fbfd; }

.dpa-progress-score {
    display:inline-grid;
    place-items:center;
    min-width:48px;
    min-height:30px;
    padding:4px 8px;
    border-radius:9px;
    font-weight:900;
}
.dpa-progress-score.is-pass { background:#e7f6ec; color:#247c45; }
.dpa-progress-score.is-warn { background:#fff4dc; color:#9a6911; }
.dpa-progress-score.is-low { background:#fde9e9; color:#a83d3d; }
.dpa-progress-score.is-empty { background:#f1f1f4; color:#9a9aa0; }

.dpa-ready-badge {
    display:inline-block;
    padding:6px 9px;
    border-radius:999px;
    background:#f1f1f4;
    color:#777;
    font-size:11px;
    font-weight:900;
}
.dpa-ready-badge.is-ready { background:#e7f6ec; color:#247c45; }
.dpa-progress-ready { min-width:90px !important; }
.dpa-progress-tries { font-weight:900; color:#555; }
.dpa-progress-note { margin-top:12px; }

@media (max-width: 760px) {
    .dpa-progress-card { padding:14px; }
    .dpa-progress-table .dpa-progress-student { min-width:180px; max-width:200px; }
}