:root {
    --candidate-primary: #16713a;
    --candidate-primary-dark: #0f5b2e;
    --candidate-ink: #172033;
    --candidate-muted: #64748b;
    --candidate-border: #e2e8f0;
    --candidate-surface: #ffffff;
    --candidate-background: #f5f8f5;
    --candidate-soft: #edf7f0;
    --candidate-success: #16713a;
    --candidate-warning: #d97706;
    --candidate-danger: #dc3545;
    --candidate-radius: .55rem;
}

html { scroll-behavior: smooth; }
body.candidate-body {
    min-height: 100vh;
    margin: 0;
    overflow-x: clip;
    color: var(--candidate-ink);
    background: var(--candidate-background);
    font-family: Roboto, sans-serif;
    font-size: .9375rem;
    -webkit-font-smoothing: antialiased;
}
a { color: var(--candidate-primary); text-underline-offset: .18em; }
a:hover { color: var(--candidate-primary-dark); }
.candidate-body .card,
.candidate-body .modal-content,
.candidate-body .offcanvas,
.candidate-body .dropdown-menu,
.candidate-body .btn,
.candidate-body .form-control,
.candidate-body .form-select,
.candidate-body .form-check-input,
.candidate-body .navbar-toggler { box-shadow: none !important; }
.candidate-container { max-width: 1180px; }
.candidate-main { min-height: calc(100vh - 140px); }
.candidate-navbar {
    min-height: 68px;
    background: rgba(255,255,255,.96);
    border-bottom: 1px solid var(--candidate-border);
    backdrop-filter: blur(12px);
}
.brand-logo { width: 42px; height: 42px; object-fit: contain; }
.navbar-brand span { display: flex; flex-direction: column; line-height: 1.15; }
.navbar-brand strong { color: var(--candidate-ink); font-size: 1rem; }
.navbar-brand small { color: var(--candidate-muted); font-size: .72rem; margin-top: .2rem; }
.candidate-navbar .nav-link {
    color: #475569;
    border-radius: .4rem;
    font-weight: 500;
    padding: .65rem .85rem;
}
.candidate-navbar .nav-link i { margin-right: .35rem; }
.candidate-navbar .nav-link:hover,
.candidate-navbar .nav-link.active { color: var(--candidate-primary); background: var(--candidate-soft); }
.nav-user { display: flex; align-items: center; gap: .65rem; }
.nav-user small { display: block; color: var(--candidate-muted); }
.btn-icon { display: inline-flex; align-items: center; justify-content: center; width: 42px; height: 42px; padding: 0; border-radius: .4rem; }
.btn-primary {
    --bs-btn-color: #fff;
    --bs-btn-bg: var(--candidate-primary);
    --bs-btn-border-color: var(--candidate-primary);
    --bs-btn-hover-color: #fff;
    --bs-btn-hover-bg: var(--candidate-primary-dark);
    --bs-btn-hover-border-color: var(--candidate-primary-dark);
    --bs-btn-active-color: #fff;
    --bs-btn-active-bg: var(--candidate-primary-dark);
    --bs-btn-active-border-color: var(--candidate-primary-dark);
    --bs-btn-disabled-color: #fff;
    --bs-btn-disabled-bg: var(--candidate-primary);
    --bs-btn-disabled-border-color: var(--candidate-primary);
}
.btn-outline-primary {
    --bs-btn-color: var(--candidate-primary);
    --bs-btn-border-color: var(--candidate-primary);
    --bs-btn-hover-color: #fff;
    --bs-btn-hover-bg: var(--candidate-primary);
    --bs-btn-hover-border-color: var(--candidate-primary);
    --bs-btn-active-color: #fff;
    --bs-btn-active-bg: var(--candidate-primary-dark);
    --bs-btn-active-border-color: var(--candidate-primary-dark);
}
.btn-ghost-primary { color: var(--candidate-primary); }
.btn-ghost-primary:hover, .btn-ghost-primary:focus { color: var(--candidate-primary-dark); background: var(--candidate-soft); }
.text-primary { color: var(--candidate-primary) !important; }
.bg-primary { background-color: var(--candidate-primary) !important; }
.btn { font-weight: 500; border-radius: .4rem; min-height: 42px; }
.btn:focus-visible { outline: 3px solid rgba(22,113,58,.22); outline-offset: 1px; }
.form-control, .form-select { border-color: #cfd8e6; border-radius: .4rem; min-height: 46px; }
.form-control:focus, .form-select:focus { border-color: #69a97c; outline: 3px solid rgba(22,113,58,.16); outline-offset: 1px; }
.form-check-input:checked { background-color: var(--candidate-primary); border-color: var(--candidate-primary); }
.form-check-input:focus { border-color: #69a97c; outline: 3px solid rgba(22,113,58,.16); outline-offset: 1px; }
.form-label { color: #334155; font-weight: 500; }
.card-clean {
    background: var(--candidate-surface);
    border: 1px solid rgba(226,232,240,.9);
    border-radius: var(--candidate-radius);
}
.page-eyebrow { color: var(--candidate-primary); font-size: .78rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.page-title { color: var(--candidate-ink); font-size: clamp(1.6rem, 3vw, 2.15rem); font-weight: 700; letter-spacing: -.025em; }
.page-description { color: var(--candidate-muted); max-width: 680px; }
.candidate-footer { color: var(--candidate-muted); padding: 1.25rem 0 2rem; text-align: center; font-size: .82rem; }
.avatar { flex: 0 0 auto; display: inline-flex; align-items: center; justify-content: center; overflow: hidden; color: #fff; background: linear-gradient(135deg,#16713a,#54a566); border-radius: 50%; font-weight: 700; text-decoration: none; }
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.avatar-sm { width: 40px; height: 40px; }
.avatar-lg { width: 76px; height: 76px; font-size: 1.55rem; }
.avatar-xl { width: 112px; height: 112px; font-size: 2.2rem; }
.avatar-upload-controls { min-width: 0; }
.avatar-picker-layout { display: flex; align-items: flex-start; gap: 1.5rem; }
.avatar-preview-panel { display: grid; justify-items: center; gap: .75rem; flex: 0 0 136px; padding-top: .5rem; }
.avatar-dropzone { display: flex; align-items: center; gap: 1rem; width: 100%; padding: 1.25rem; text-align: left; color: var(--candidate-ink); background: #f8fbf8; border: 1.5px dashed #b7cdbd; border-radius: var(--candidate-radius); cursor: pointer; }
.avatar-dropzone[hidden] { display: none; }
.avatar-dropzone:hover, .avatar-dropzone.is-dragging { border-color: var(--candidate-primary); background: var(--candidate-soft); }
.avatar-dropzone:focus-visible { outline: 2px solid var(--candidate-primary); outline-offset: 3px; }
.avatar-dropzone:disabled { cursor: wait; opacity: .65; }
.avatar-dropzone.is-invalid { border-color: var(--candidate-danger); }
.avatar-dropzone-icon { display: grid; place-items: center; flex: 0 0 48px; width: 48px; height: 48px; color: var(--candidate-primary); background: #e8f3eb; border-radius: .5rem; font-size: 1.5rem; }
.avatar-dropzone-content { display: grid; gap: .35rem; min-width: 0; }
.avatar-dropzone-content strong { color: var(--candidate-primary); font-size: 1rem; }
.avatar-dropzone-content span, .avatar-dropzone-content small { color: var(--candidate-muted); font-size: .82rem; line-height: 1.5; }
.avatar-upload-status { overflow-wrap: anywhere; }
.avatar-upload-status:empty { display: none; }
.avatar-upload-actions { display: flex; flex-wrap: wrap; gap: .5rem; }
@media (max-width: 575.98px) {
    .avatar-picker-layout { flex-direction: column; align-items: stretch; gap: 1.25rem; }
    .avatar-preview-panel { flex-basis: auto; }
    .avatar-dropzone { padding: 1rem; gap: .75rem; }
}
.status-pill { display: inline-flex; flex: 0 0 auto; align-items: center; gap: .4rem; padding: .42rem .7rem; border-radius: .4rem; font-size: .78rem; font-weight: 600; white-space: nowrap; }
.status-pill.verified { color: #067647; background: #ecfdf3; }
.status-pill.pending { color: #a15c07; background: #fff7e8; }
.status-pill.closed { color: #596579; background: #f1f5f9; }
.status-pill.open { color: #0f5b2e; background: #e7f5eb; }
.stat-box { height: 100%; padding: .9rem 1rem; background: #f8fafc; border: 1px solid #edf1f6; border-radius: .4rem; }
.stat-box small { color: var(--candidate-muted); display: block; margin-bottom: .3rem; }
.stat-box strong { color: var(--candidate-ink); font-size: 1.02rem; }
.round-card { height: 100%; transition: border-color .18s ease; }
.round-card:hover { border-color: #b8d7c1; }
.round-card .contest-name { color: var(--candidate-primary); font-weight: 600; }
.empty-state { text-align: center; padding: 4rem 1rem; }

/* Auth */
.auth-body { background: radial-gradient(circle at 10% 0,#e3f2e7 0,transparent 34%),radial-gradient(circle at 90% 8%,#edf7e8 0,transparent 30%),#f6f9f6; }
.auth-shell { min-height: 100vh; display: grid; align-items: center; }
.brand-lockup { width: fit-content; display: flex; align-items: center; gap: .8rem; color: inherit; text-decoration: none; }
.brand-lockup img { width: 58px; height: 58px; object-fit: contain; }
.brand-lockup span { display: flex; flex-direction: column; }
.brand-lockup strong { font-size: 1.1rem; }
.brand-lockup small { color: var(--candidate-muted); }
.auth-card { max-width: 760px; margin: 0 auto; overflow: hidden; }
.auth-card.registration-card { max-width: 900px; }
.auth-card.access-notice-card { max-width: 540px; }
.auth-card .auth-heading { padding: 2rem 2rem 1.1rem; text-align: center; }
.auth-card .auth-form { padding: 1rem 2rem 2rem; }
.registration-section { min-width: 0; margin: 0; padding: 0; border: 0; }
.registration-section + .registration-section { margin-top: 1.35rem; padding-top: 1.35rem; border-top: 1px solid var(--candidate-border); }
.registration-section-title { display: flex; align-items: center; gap: .6rem; width: 100%; margin: 0 0 .8rem; color: var(--candidate-ink); font-size: 1rem; font-weight: 700; }
.registration-section-title span { display: inline-grid; width: 1.7rem; height: 1.7rem; place-items: center; color: var(--candidate-primary); background: var(--candidate-soft); border-radius: 50%; font-size: .82rem; }
.registration-section-note { margin: -.35rem 0 .85rem 2.3rem; color: var(--candidate-muted); font-size: .82rem; }
.registration-confirmation { margin-top: 1.35rem; padding-top: 1.35rem; border-top: 1px solid var(--candidate-border); }
.candidate-recaptcha { min-height: 78px; overflow: hidden; }

/* Account and result */
.account-nav { position: sticky; top: 92px; }
.account-nav .list-group-item { border: 0; border-radius: .35rem; color: #475569; margin-bottom: .25rem; }
.account-nav .list-group-item:hover { color: var(--candidate-primary); background: var(--candidate-soft); }
.account-section { scroll-margin-top: 92px; }
.result-score { width: 144px; height: 144px; display: grid; place-items: center; margin: auto; border-radius: 50%; background: conic-gradient(var(--candidate-primary) var(--score-angle,0deg),#e6eee8 0); }
.result-score::before { content: ''; grid-area: 1/1; width: 116px; height: 116px; background: #fff; border-radius: 50%; }
.result-score span { grid-area: 1/1; z-index: 1; font-size: 1.65rem; font-weight: 700; }
.table-clean { --bs-table-bg: transparent; }
.table-clean th { color: var(--candidate-muted); font-size: .78rem; font-weight: 600; text-transform: uppercase; letter-spacing: .03em; border-bottom-color: var(--candidate-border); }
.table-clean td { border-bottom-color: #edf1f6; vertical-align: middle; }

/* Exam */
.exam-body { background: #f7f8fb; padding-bottom: 2rem; }
.exam-topbar { position: sticky; top: 0; z-index: 1030; min-height: 70px; background: rgba(255,255,255,.98); border-bottom: 1px solid var(--candidate-border); }
.exam-topbar-inner { min-height: 70px; display: flex; align-items: center; gap: .8rem; }
.exam-title { min-width: 0; flex: 1 1 auto; }
.exam-title small, .exam-title strong { display: block; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.exam-title small { color: var(--candidate-muted); font-size: .76rem; }
.exam-title strong { font-size: 1rem; }
.timer-box { flex: 0 0 auto; color: var(--candidate-primary); background: var(--candidate-soft); border-radius: .4rem; padding: .5rem .85rem; text-align: center; font-variant-numeric: tabular-nums; }
.timer-box small { display: block; color: var(--candidate-muted); font-size: .68rem; line-height: 1; }
.timer-box strong { display: block; margin-top: .18rem; font-size: 1.25rem; line-height: 1.15; }
.timer-box.warning { color: var(--candidate-warning); background: #fff7e8; }
.timer-box.danger { color: var(--candidate-danger); background: #fff0f1; }
.exam-shell { max-width: 1180px; margin: 0 auto; }
.exam-sidebar-column { position: sticky; top: 94px; align-self: flex-start; z-index: 20; }
.exam-sidebar { max-height: calc(100vh - 110px); overflow-y: auto; overscroll-behavior: contain; scrollbar-color: #cbd5e1 transparent; scrollbar-width: thin; }
.candidate-card-header { padding: 1rem 1.1rem; border-bottom: 1px solid var(--candidate-border); }
.candidate-profile { display: flex; align-items: center; gap: .8rem; }
.candidate-profile strong, .candidate-profile small { display: block; }
.candidate-profile small { color: var(--candidate-muted); }
.question-navigator-heading { margin-bottom: .65rem; }
.question-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(38px,1fr)); gap: .32rem; }
.question-nav-button { min-width: 38px; min-height: 38px; padding: .15rem; border: 1px solid #d7dfeb; color: #475569; background: #fff; border-radius: .35rem; font-weight: 600; position: relative; transition: color .15s ease,background .15s ease,border-color .15s ease; }
.question-nav-button > span { position: relative; z-index: 1; }
.question-nav-button:hover { border-color: var(--candidate-primary); color: var(--candidate-primary); }
.question-nav-button.answered { color: #087a55; background: #eafaf3; border-color: #75d5ae; }
.question-nav-button.answered::before { content: '✓'; position: absolute; right: 4px; bottom: 1px; color: #087a55; font-size: .62rem; font-weight: 800; line-height: 1; }
.question-nav-button.current { color: #fff; background: var(--candidate-primary); border-color: var(--candidate-primary); outline: 2px solid rgba(22,113,58,.2); outline-offset: 1px; }
.question-nav-button.current.answered::before { color: #fff; }
.question-nav-button.flagged::after { content: ''; position: absolute; top: 4px; right: 4px; width: 7px; height: 7px; background: var(--candidate-warning); border: 2px solid #fff; border-radius: 50%; }
.question-nav-button.save-error { color: #be123c; background: #fff1f2; border-color: #fda4af; }
.question-legend { display: flex; flex-wrap: wrap; gap: .65rem 1rem; color: var(--candidate-muted); font-size: .76rem; }
.question-legend span { display: inline-flex; align-items: center; gap: .35rem; }
.legend-dot { width: 10px; height: 10px; border: 1px solid #cbd5e1; border-radius: 3px; }
.legend-dot.answered { background: #eafaf3; border-color: #20a474; }
.legend-dot.current { background: var(--candidate-primary); border-color: var(--candidate-primary); outline: 2px solid rgba(22,113,58,.16); outline-offset: 1px; }
.legend-dot.flagged { background: var(--candidate-warning); border-color: var(--candidate-warning); border-radius: 50%; }
.question-card { overflow: hidden; scroll-margin-top: 92px; }
.question-card.active-question { border-color: #77b88a; }
.question-card-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: .9rem 1.1rem; border-bottom: 1px solid var(--candidate-border); }
.question-card-head h2 { font-size: 1rem; margin: 0; }
.flag-button { color: #94a3b8; background: transparent; border: 0; border-radius: .35rem; width: 40px; height: 40px; }
.flag-button:hover, .flag-button.active { color: var(--candidate-warning); background: #fff7e8; }
.question-prompt { padding: 1.15rem; background: #f1f4f9; font-size: 1rem; line-height: 1.65; font-weight: 500; }
.question-options { padding: .75rem 1.1rem 1.1rem; }
.question-option { display: flex; align-items: flex-start; gap: .7rem; margin: .5rem 0; padding: .82rem .9rem; border: 1px solid transparent; border-radius: .4rem; cursor: pointer; transition: background .15s ease,border-color .15s ease; }
.question-option:hover { background: #f8fafc; border-color: #dce4ef; }
.question-option:has(input:checked) { background: var(--candidate-soft); border-color: #8fc39f; }
.question-option input { flex: 0 0 auto; margin-top: .18rem; width: 1.1rem; height: 1.1rem; }
.question-option span { line-height: 1.55; }
.question-hint { color: var(--candidate-muted); font-size: .78rem; font-weight: 400; }
.save-state { min-height: 1.4rem; color: var(--candidate-muted); font-size: .8rem; }
.save-state.success { color: var(--candidate-success); }
.save-state.error { color: var(--candidate-danger); }
.exam-sidebar-actions { margin-top: .75rem; }
.submit-sidebar { width: 100%; margin-top: .5rem; }

@media (max-width: 991.98px) {
    .candidate-main { min-height: calc(100vh - 120px); }
    .candidate-navbar { min-height: 62px; backdrop-filter: none; }
    .candidate-navbar .offcanvas { max-width: 320px; }
    .candidate-navbar .nav-link { padding: .8rem; }
    .account-nav { position: static; }
    .exam-sidebar-column { position: sticky; top: 70px; z-index: 1020; }
    .exam-sidebar { max-height: calc(100dvh - 82px); border: 0; border-bottom: 1px solid var(--candidate-border); border-radius: 0; overflow-y: auto; }
    .exam-sidebar .card-body { padding: .9rem .75rem .8rem !important; }
    .question-navigator-heading { display: none !important; }
    .question-grid { grid-template-columns: repeat(10,minmax(0,1fr)); gap: .25rem; }
    .question-nav-button { min-width: 0; min-height: 0; aspect-ratio: 1; padding: 0; border-radius: .3rem; font-size: .78rem; }
    .question-nav-button.answered::before { right: 2px; bottom: 1px; font-size: .52rem; }
    .question-nav-button.flagged::after { top: 2px; right: 2px; width: 6px; height: 6px; border-width: 1px; }
    .question-legend { display: none; }
    .exam-sidebar-actions { display: block; margin-top: .65rem; }
    .exam-sidebar-actions .save-state { display: none; }
    .submit-sidebar { width: auto; min-height: 36px; margin-top: 0; padding: .4rem .85rem; color: #e11d48; background: #ffd7df; border-color: #ffd7df; font-weight: 700; }
    .submit-sidebar:hover,.submit-sidebar:focus { color: #be123c; background: #ffc4d0; border-color: #ffc4d0; }
    .question-card { border-radius: .5rem; }
}
@media (min-width: 992px) {
    .border-lg-0 { border: 0 !important; }
}
@media (max-width: 575.98px) {
    body.candidate-body { font-size: .9rem; }
    .candidate-container { --bs-gutter-x: 1.4rem; }
    .brand-logo { width: 38px; height: 38px; }
    .navbar-brand strong { max-width: 220px; font-size: .9rem; line-height: 1.2; white-space: normal; }
    .navbar-brand small { display: none; }
    .auth-card .auth-heading { padding: 1.5rem 1.15rem .6rem; }
    .auth-card .auth-form { padding: .8rem 1.15rem 1.5rem; }
    .registration-section + .registration-section { margin-top: 1.1rem; padding-top: 1.1rem; }
    .timer-box { padding: .48rem .65rem; }
    .timer-box small { display: none; }
    .timer-box strong { margin: 0; font-size: 1.05rem; }
    .exam-title small { display: none; }
    .question-prompt { font-size: .96rem; padding: 1rem; }
    .question-options { padding: .55rem .65rem .85rem; }
    .question-option { padding: .78rem .65rem; }
    .result-score { width: 126px; height: 126px; }
    .result-score::before { width: 100px; height: 100px; }
}
@media (max-width: 359.98px) {
    .question-grid { grid-template-columns: repeat(8,minmax(0,1fr)); }
    .candidate-recaptcha .g-recaptcha { height: 62px; transform: scale(.84); transform-origin: left top; }
}
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *,*::before,*::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}