:root {
    --bg: #050505;
    --panel: #ffffff;
    --panel-soft: #f6f7fb;
    --text: #11131a;
    --muted: #6a7280;
    --line: #e7e9ef;
    --dark: #090909;
    --red: #f41e2b;
    --yellow: #fff200;
    --cyan: #43c3e2;
    --blue: #343895;
    --green: #12a36a;
    --danger: #d11a2a;
    --shadow: 0 22px 60px rgba(0,0,0,.22);
    --radius: 26px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: var(--bg);
    color: var(--text);
}
a { color: inherit; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }

.public-main {
    min-height: 100vh;
    padding: 30px 18px 64px;
    background:
        radial-gradient(circle at 18% 8%, rgba(67,195,226,.22), transparent 28%),
        radial-gradient(circle at 82% 14%, rgba(244,30,43,.16), transparent 25%),
        linear-gradient(180deg, #000 0%, #0c0d14 52%, #f3f4f8 52%, #ffffff 100%);
}

.hero-card,
.panel-card,
.submit-panel,
.login-card,
.progress-panel,
.certificate-toolbar {
    width: min(1120px, 100%);
    margin: 0 auto 22px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.hero-card {
    background: rgba(255,255,255,.96);
    padding: clamp(26px, 5vw, 54px);
    overflow: hidden;
    position: relative;
}
.hero-card:after {
    content: "";
    position: absolute;
    inset: auto -90px -130px auto;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    border: 34px solid var(--cyan);
    box-shadow: -34px 18px 0 var(--red), -10px -34px 0 var(--blue), -78px -8px 0 var(--yellow);
    opacity: .22;
}
.hero-card.compact { width: min(920px, 100%); }
.exam-hero { margin-top: 20px; }
.brand-row, .admin-header, .section-heading, .submit-panel {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}
.brand-logo {
    width: min(360px, 72vw);
    height: auto;
    display: block;
    border-radius: 18px;
    background: #000;
}
.hero-card h1,
.login-card h1,
.admin-header h1,
.section-heading h2,
.submit-panel h2,
.panel-card h2 {
    margin: 0;
    line-height: 1.04;
    letter-spacing: -.04em;
}
.hero-card h1 { font-size: clamp(2.3rem, 7vw, 5.6rem); max-width: 950px; margin-top: 34px; }
.hero-card p { max-width: 760px; color: var(--muted); font-size: clamp(1rem, 2.2vw, 1.25rem); line-height: 1.65; }
.status-badge, .eyebrow, .pill {
    display: inline-flex;
    align-items: center;
    width: fit-content;
    border-radius: 999px;
    font-weight: 800;
    letter-spacing: .02em;
}
.status-badge {
    background: #111;
    color: #fff;
    padding: 10px 14px;
    font-size: .88rem;
}
.status-badge.success, .pill.success { background: rgba(18,163,106,.12); color: #08764b; }
.status-badge.danger, .pill.danger { background: rgba(209,26,42,.12); color: var(--danger); }
.pill.muted { background: #eef0f5; color: #596273; }
.eyebrow { color: var(--blue); text-transform: uppercase; font-size: .76rem; margin-bottom: 8px; }
.exam-meta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.exam-meta span {
    border: 1px solid var(--line);
    background: #fff;
    padding: 10px 14px;
    border-radius: 999px;
    font-weight: 800;
}

.panel-card, .submit-panel, .progress-panel, .certificate-toolbar {
    background: #fff;
    padding: clamp(20px, 4vw, 34px);
}
.panel-card { border: 1px solid rgba(0,0,0,.06); }
.section-heading { margin-bottom: 22px; align-items: flex-end; }
.section-heading h2 { font-size: clamp(1.55rem, 3.6vw, 2.35rem); }
.muted { color: var(--muted); }

.form-grid { display: grid; gap: 18px; }
.form-grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.stack-form { display: grid; gap: 16px; }
.stack-form.wide { max-width: 860px; }
label span { display: block; font-weight: 800; margin-bottom: 8px; }
input[type="text"], input[type="email"], input[type="password"], input[type="number"], input[type="date"], input[type="search"], select, textarea {
    width: 100%;
    border: 1px solid #d9dce5;
    border-radius: 16px;
    background: #fbfcff;
    padding: 14px 15px;
    color: var(--text);
    outline: none;
    transition: border .18s ease, box-shadow .18s ease, background .18s ease;
}
textarea { resize: vertical; }
input:focus, select:focus, textarea:focus {
    border-color: var(--cyan);
    background: #fff;
    box-shadow: 0 0 0 4px rgba(67,195,226,.16);
}
.conditional-block { display: none; }
.conditional-block.is-visible { display: block; }

.progress-panel {
    position: sticky;
    top: 12px;
    z-index: 5;
    display: grid;
    gap: 12px;
    border: 1px solid var(--line);
    box-shadow: 0 14px 40px rgba(0,0,0,.14);
}
.progress-panel > div:first-child { display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; }
.progress-track, .bar-track {
    height: 12px;
    background: #e9ebf2;
    border-radius: 999px;
    overflow: hidden;
}
.progress-track span, .bar-track span {
    display: block;
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, var(--red), var(--yellow), var(--cyan), var(--blue));
    border-radius: inherit;
    transition: width .22s ease;
}

.module-card { margin-top: 22px; }
.question-list { display: grid; gap: 18px; }
.question-card {
    border: 1px solid var(--line);
    background: linear-gradient(180deg, #fff, #fafbff);
    border-radius: 22px;
    padding: 20px;
    margin: 0;
}
.question-card legend {
    width: 100%;
    padding: 0;
    margin-bottom: 16px;
    font-size: 1.08rem;
    font-weight: 850;
    line-height: 1.4;
}
.question-card legend span { color: var(--blue); margin-right: 6px; }
.option-list { display: grid; gap: 10px; }
.option-card {
    display: grid;
    grid-template-columns: auto auto 1fr;
    align-items: center;
    gap: 12px;
    margin: 0;
    border: 1px solid #dde1eb;
    border-radius: 18px;
    padding: 14px;
    background: #fff;
    transition: transform .16s ease, border .16s ease, box-shadow .16s ease;
}
.option-card:hover { transform: translateY(-1px); border-color: var(--cyan); box-shadow: 0 10px 26px rgba(17,19,26,.08); }
.option-card input { width: 18px; height: 18px; accent-color: var(--blue); }
.option-letter {
    display: inline-grid;
    place-items: center;
    width: 30px;
    height: 30px;
    border-radius: 10px;
    background: #111;
    color: #fff;
    font-weight: 900;
    margin: 0;
}
.submit-panel { margin-top: 24px; }

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 0;
    border-radius: 999px;
    padding: 13px 19px;
    font-weight: 900;
    text-decoration: none;
    line-height: 1;
    gap: 8px;
    transition: transform .16s ease, box-shadow .16s ease, background .16s ease;
}
.button:hover { transform: translateY(-1px); }
.button.primary { background: #111; color: #fff; box-shadow: 0 14px 30px rgba(0,0,0,.22); }
.button.primary:hover { background: var(--blue); }
.button.ghost { background: #f0f2f7; color: #111; }
.button.large { padding: 18px 28px; font-size: 1.05rem; }
.button.full { width: 100%; }
.button-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 18px; }
.link-button, .table-link {
    border: 0;
    background: none;
    color: var(--blue);
    font-weight: 900;
    padding: 0;
    text-decoration: none;
}
.table-link:hover, .link-button:hover { text-decoration: underline; }
.inline-form { display: inline; }

.flash-stack { width: min(1120px, 100%); margin: 0 auto 18px; display: grid; gap: 10px; }
.flash { border-radius: 16px; padding: 14px 16px; font-weight: 800; background: #fff; border: 1px solid var(--line); }
.flash-error { color: var(--danger); border-color: rgba(209,26,42,.25); }
.flash-success { color: #08764b; border-color: rgba(18,163,106,.25); }

.login-card {
    width: min(460px, 100%);
    background: #fff;
    padding: 34px;
    margin-top: max(40px, 8vh);
}
.login-logo { display: block; width: 260px; max-width: 100%; background: #000; border-radius: 18px; margin-bottom: 22px; }
.login-card p { color: var(--muted); line-height: 1.55; }

.admin-body { background: #f4f6fb; }
.admin-shell { min-height: 100vh; display: grid; grid-template-columns: 284px 1fr; }
.admin-sidebar {
    position: sticky;
    top: 0;
    min-height: 100vh;
    background: #070707;
    color: #fff;
    padding: 22px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}
.admin-brand img { width: 210px; max-width: 100%; display: block; border-radius: 16px; }
.admin-nav { display: grid; gap: 8px; }
.admin-nav a {
    color: #fff;
    text-decoration: none;
    border-radius: 16px;
    padding: 13px 14px;
    font-weight: 850;
    opacity: .78;
}
.admin-nav a:hover, .admin-nav a.active { background: rgba(255,255,255,.12); opacity: 1; }
.admin-user { margin-top: auto; display: grid; gap: 4px; color: #fff; }
.admin-user small { color: rgba(255,255,255,.62); }
.admin-user .link-button { color: var(--cyan); text-align: left; margin-top: 10px; }
.admin-main { padding: 30px; min-width: 0; }
.admin-main .panel-card, .admin-main .stat-grid, .admin-main .dashboard-grid, .admin-header { width: 100%; max-width: 1280px; margin-left: auto; margin-right: auto; }
.admin-header { margin-bottom: 22px; }
.admin-header h1 { font-size: clamp(2rem, 4vw, 3.2rem); }
.admin-header p { color: var(--muted); margin: 8px 0 0; }
.stat-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; margin-bottom: 22px; }
.stat-card {
    background: #fff;
    border-radius: 22px;
    padding: 22px;
    box-shadow: 0 10px 30px rgba(12,13,20,.07);
    border: 1px solid var(--line);
}
.stat-card span { display: block; color: var(--muted); font-weight: 800; margin-bottom: 8px; }
.stat-card strong { font-size: clamp(1.6rem, 3vw, 2.35rem); letter-spacing: -.04em; }
.dashboard-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.bar-list { display: grid; gap: 14px; }
.bar-row > div:first-child { display: flex; justify-content: space-between; gap: 14px; font-weight: 800; margin-bottom: 7px; }
.bar-row span { overflow-wrap: anywhere; }
.insight-list { display: grid; gap: 12px; }
.insight-item { padding: 14px; background: var(--panel-soft); border-radius: 16px; border: 1px solid var(--line); }
.insight-item p { margin: 7px 0 0; color: var(--muted); line-height: 1.45; }

.filter-form { display: grid; grid-template-columns: 1.4fr 1fr .9fr .8fr .8fr auto auto; gap: 12px; align-items: end; }
.table-card { padding: 0; overflow: hidden; }
.table-scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; min-width: 820px; }
th, td { padding: 15px 16px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: #111; color: #fff; font-size: .84rem; text-transform: uppercase; letter-spacing: .04em; }
td small { color: var(--muted); }
.actions-cell { display: flex; flex-wrap: wrap; gap: 10px; }
.pill { padding: 6px 10px; font-size: .82rem; }

.option-editor { display: grid; gap: 12px; }
.option-edit-row { display: grid; grid-template-columns: 120px 1fr; gap: 14px; align-items: end; padding: 12px; border: 1px solid var(--line); border-radius: 18px; background: #fbfcff; }
.radio-inline { display: flex; gap: 8px; align-items: center; font-weight: 800; padding-bottom: 14px; }
.radio-inline input, .check-row input { accent-color: var(--blue); }
.check-row { display: flex; align-items: center; gap: 10px; font-weight: 850; }
.grow { width: 100%; }

.result-card.passed { border-top: 8px solid var(--green); }
.result-card.failed { border-top: 8px solid var(--danger); }
.certificate-panel { background: #fff; }
.certificate-art {
    width: min(100%, 1180px);
    aspect-ratio: 2048 / 1582;
    margin: 0 auto;
    position: relative;
    background-image: url('../img/certificado.png');
    background-size: cover;
    background-position: center;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 18px 50px rgba(0,0,0,.18);
}
.certificate-art.standalone { width: min(100%, 1300px); box-shadow: none; }
.certificate-name {
    position: absolute;
    left: 10.4%;
    top: 36.9%;
    width: 79.2%;
    min-height: 13.4%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    font-weight: 900;
    letter-spacing: -.03em;
    line-height: 1.08;
    color: #000;
    text-transform: none;
}
.certificate-name span { display: block; }
.certificate-name.size-lg { font-size: clamp(1.15rem, 2.85vw, 3.45rem); }
.certificate-name.size-md { font-size: clamp(1rem, 2.45vw, 3rem); }
.certificate-name.size-sm { font-size: clamp(.92rem, 2.15vw, 2.55rem); }
.certificate-folio {
    position: absolute;
    left: 10.2%;
    bottom: 4.7%;
    font-size: clamp(.45rem, .9vw, 1rem);
    color: rgba(0,0,0,.54);
    font-weight: 800;
}
.certificate-toolbar {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}
.certificate-admin-actions { margin-bottom: 18px; }
.print-sheet { width: min(1360px, 100%); margin: 0 auto; }

@media (max-width: 1020px) {
    .admin-shell { grid-template-columns: 1fr; }
    .admin-sidebar { position: relative; min-height: auto; }
    .admin-nav { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .stat-grid, .dashboard-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .filter-form { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 720px) {
    .public-main { padding: 18px 12px 44px; }
    .brand-row, .admin-header, .section-heading, .submit-panel { align-items: flex-start; flex-direction: column; }
    .form-grid.two, .stat-grid, .dashboard-grid, .filter-form, .option-edit-row { grid-template-columns: 1fr; }
    .hero-card h1 { margin-top: 24px; }
    .hero-card, .panel-card, .submit-panel, .login-card, .progress-panel, .certificate-toolbar { border-radius: 20px; }
    .option-card { grid-template-columns: auto auto 1fr; }
    .admin-main { padding: 18px; }
    .admin-nav { grid-template-columns: 1fr; }
    .certificate-name { top: 31.2%; width: 80%; left: 10%; }
    .certificate-name.size-lg { font-size: clamp(.94rem, 4.2vw, 2.1rem); }
    .certificate-name.size-md { font-size: clamp(.86rem, 3.8vw, 1.85rem); }
    .certificate-name.size-sm { font-size: clamp(.78rem, 3.35vw, 1.6rem); }
}

@media print {
    @page { size: A4 landscape; margin: 0; }
    body { background: #fff !important; }
    .no-print, .flash-stack, .hero-card, .panel-card:not(.certificate-panel), .admin-sidebar { display: none !important; }
    .public-main { padding: 0; background: #fff; min-height: auto; }
    .print-sheet { width: 100vw; margin: 0; padding: 0; }
    .certificate-art { width: 100vw; height: auto; border-radius: 0; box-shadow: none; }
}
.option-card.selected {
    border-color: var(--blue);
    background: linear-gradient(180deg, #fff, #f2f4ff);
    box-shadow: 0 12px 26px rgba(52,56,149,.12);
}