:root {
  --navy-950: #071737;
  --navy-900: #0b1f46;
  --indigo-700: #3346d3;
  --indigo-600: #4659e8;
  --indigo-100: #e8ebff;
  --teal-500: #12b8a6;
  --lime-500: #75c842;
  --sky-50: #f5f9ff;
  --slate-900: #17233c;
  --slate-700: #44516b;
  --slate-500: #73809a;
  --slate-300: #ccd4e2;
  --slate-200: #e3e8f0;
  --white: #fff;
  --danger: #d64545;
  --shadow: 0 18px 55px rgba(24, 43, 83, .12);
  --radius-lg: 22px;
  --radius-md: 14px;
  --sidebar: 280px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--slate-900); background: var(--sky-50); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; font-size: 16px; line-height: 1.5; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
.hidden { display: none !important; }

.landing { min-height: 100vh; overflow: hidden; background: radial-gradient(circle at 85% 8%, #d9f8f0 0, transparent 26%), linear-gradient(145deg, #f8fbff 0%, #eef5ff 55%, #e8f2ff 100%); }
.public-header { position: relative; z-index: 3; height: 92px; max-width: 1380px; margin: auto; padding: 0 5vw; display: flex; align-items: center; justify-content: space-between; }
.brand { color: var(--navy-900); text-decoration: none; display: inline-flex; gap: 12px; align-items: center; font-size: 1.15rem; font-weight: 750; letter-spacing: -.02em; }
.brand strong { color: var(--indigo-600); }
.brand-mark { width: 42px; height: 42px; display: grid; place-items: center; overflow: hidden; border-radius: 50%; color: white; font-weight: 850; background: #fff; box-shadow: 0 8px 20px rgba(70, 89, 232, .28); }
.brand-mark img { width: 100%; height: 100%; display: block; object-fit: cover; }
.brand-light { color: white; padding: 4px 8px; }
.brand-light strong { color: #98f0df; }

.button { border: 0; border-radius: 11px; padding: 11px 18px; font-weight: 750; color: var(--slate-900); background: white; display: inline-flex; align-items: center; justify-content: center; gap: 8px; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.button:hover { transform: translateY(-1px); }
.button:focus-visible, .icon-button:focus-visible, .nav-item:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 3px solid rgba(70, 89, 232, .24); outline-offset: 2px; }
.button-primary { color: white; background: linear-gradient(135deg, var(--indigo-600), #3346ca); box-shadow: 0 10px 24px rgba(61, 78, 210, .22); }
.button-primary:hover { box-shadow: 0 14px 30px rgba(61, 78, 210, .3); }
.button-secondary { color: var(--indigo-700); border: 1px solid #cfd5ff; background: #f7f8ff; }
.button-quiet { color: var(--slate-700); border: 1px solid var(--slate-200); box-shadow: none; }
.button-large { min-height: 50px; padding-inline: 24px; }
.button-small { padding: 9px 14px; font-size: .9rem; }

.hero { max-width: 1380px; min-height: calc(100vh - 92px); margin: auto; padding: 5vh 5vw 9vh; display: grid; grid-template-columns: minmax(360px, .85fr) minmax(580px, 1.35fr); gap: 4vw; align-items: center; }
.hero-copy { position: relative; z-index: 2; max-width: 610px; }
.eyebrow { display: inline-flex; color: var(--indigo-700); font-size: .78rem; line-height: 1; letter-spacing: .12em; text-transform: uppercase; font-weight: 850; }
.hero h1 { margin: 20px 0; font-size: clamp(3rem, 5.3vw, 5.7rem); line-height: .99; letter-spacing: -.065em; color: var(--navy-950); }
.hero-copy > p { max-width: 570px; margin: 0 0 30px; color: var(--slate-700); font-size: 1.18rem; line-height: 1.7; }
.trust-row { margin-top: 24px; display: flex; flex-wrap: wrap; gap: 22px; color: var(--slate-700); font-size: .9rem; font-weight: 700; }
.trust-row span::first-letter { color: var(--teal-500); }
.hero-visual { position: relative; min-width: 0; }
.hero-visual::before { content: ""; position: absolute; inset: 8% -5% -2% 10%; background: linear-gradient(145deg, rgba(70,89,232,.16), rgba(18,184,166,.12)); border-radius: 40% 32% 45% 33%; filter: blur(2px); transform: rotate(-3deg); }
.hero-visual img { position: relative; display: block; width: 100%; border-radius: 34px; box-shadow: 0 30px 80px rgba(30, 61, 122, .2); object-fit: cover; aspect-ratio: 1.65 / 1; }
.floating-card { position: absolute; z-index: 2; padding: 13px 16px; border: 1px solid rgba(255,255,255,.76); border-radius: 14px; background: rgba(255,255,255,.91); box-shadow: var(--shadow); backdrop-filter: blur(10px); }
.floating-progress { right: -2%; top: 9%; }
.floating-progress span { display: block; color: var(--slate-500); font-size: .75rem; }
.floating-progress strong { color: var(--lime-500); font-size: 1.45rem; }
.floating-score { left: -3%; bottom: 8%; display: flex; align-items: center; gap: 11px; }
.floating-score strong, .floating-score small { display: block; }
.floating-score small { color: var(--slate-500); }
.score-icon { width: 35px; height: 35px; border-radius: 50%; display: grid; place-items: center; color: white; background: var(--teal-500); }

.dialog-backdrop { position: fixed; inset: 0; z-index: 20; display: grid; place-items: center; padding: 20px; background: rgba(7, 23, 55, .64); backdrop-filter: blur(8px); }
.dialog-card { position: relative; width: min(440px, 100%); padding: 38px; text-align: center; border-radius: 24px; background: white; box-shadow: 0 26px 90px rgba(0,0,0,.28); }
.dialog-card h2 { margin: 18px 0 6px; font-size: 1.7rem; }
.dialog-card p { margin: 0 0 24px; color: var(--slate-500); }
.dialog-close { position: absolute; right: 16px; top: 16px; }
.login-mark { margin: auto; }
.google-button-slot { min-height: 44px; display: flex; justify-content: center; }
.login-note { padding: 13px; border-radius: 10px; background: var(--sky-50); font-size: .88rem; }
.demo-divider { margin: 22px 0 14px; display: flex; align-items: center; gap: 12px; color: var(--slate-500); font-size: .78rem; }
.demo-divider::before, .demo-divider::after { content: ""; height: 1px; flex: 1; background: var(--slate-200); }
.demo-actions { display: grid; gap: 10px; }

.app-shell { width: 100%; min-height: 100vh; }
.sidebar { position: fixed; inset: 0 auto 0 0; z-index: 10; width: var(--sidebar); padding: 26px 18px; color: white; display: flex; flex-direction: column; background: linear-gradient(180deg, var(--navy-950), #102859); }
.academy-picker { margin: 38px 7px 24px; }
.academy-picker label { display: block; margin: 0 0 7px; color: #aebde1; font-size: .75rem; text-transform: uppercase; letter-spacing: .1em; font-weight: 800; }
.academy-picker select { width: 100%; min-height: 44px; border: 1px solid rgba(255,255,255,.14); border-radius: 10px; color: white; background: rgba(255,255,255,.08); padding: 0 10px; }
.academy-picker option { color: var(--slate-900); }
.side-nav { display: grid; gap: 7px; }
.nav-item { width: 100%; min-height: 46px; padding: 0 13px; border: 0; border-radius: 10px; color: #bdc9e6; background: transparent; display: flex; align-items: center; gap: 12px; text-align: left; font-weight: 700; }
.nav-item:hover, .nav-item.active { color: white; background: rgba(255,255,255,.11); }
.nav-item.active { box-shadow: inset 3px 0 0 #66ddc8; }
.nav-item span { width: 22px; text-align: center; font-size: 1.15rem; }
.sidebar-bottom { margin-top: auto; }
.workspace { min-width: 0; margin-left: var(--sidebar); }
.app-header { height: 84px; padding: 0 3.5vw; display: flex; align-items: center; gap: 13px; border-bottom: 1px solid var(--slate-200); background: rgba(255,255,255,.9); backdrop-filter: blur(10px); }
.app-header > div:nth-child(2) { display: grid; line-height: 1.25; }
.header-kicker { color: var(--slate-500); font-size: .78rem; }
.app-header strong { font-size: 1.02rem; }
.avatar { width: 40px; height: 40px; margin-left: auto; display: grid; place-items: center; border-radius: 50%; color: var(--indigo-700); background: var(--indigo-100); font-weight: 850; }
.app-header #push-enable { margin-left: auto; }
.app-header #push-enable + .avatar { margin-left: 12px; }
.icon-button { width: 38px; height: 38px; border: 0; border-radius: 10px; color: var(--slate-700); background: #f0f3f8; font-size: 1.25rem; }
.menu-toggle { display: none; }
.content { max-width: 1440px; margin: auto; padding: 40px 3.5vw 70px; }
.page-heading { margin-bottom: 28px; display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; }
.page-heading h1 { margin: 7px 0 4px; font-size: clamp(2rem, 3vw, 2.75rem); line-height: 1.1; letter-spacing: -.045em; color: var(--navy-950); }
.page-heading p { margin: 0; color: var(--slate-500); }
.draft-badge { padding: 8px 12px; border-radius: 999px; color: #745f13; background: #fff6cc; font-size: .8rem; font-weight: 800; }
.panel { border: 1px solid var(--slate-200); border-radius: var(--radius-lg); background: white; box-shadow: 0 12px 40px rgba(31, 54, 101, .06); }
.form-panel { padding: clamp(22px, 3vw, 38px); }
.form-grid { display: grid; gap: 18px; }
.two-columns { grid-template-columns: 1.5fr .5fr; }
.field { min-width: 0; display: grid; gap: 7px; color: var(--slate-700); font-size: .88rem; font-weight: 750; }
.field input, .field select, .field textarea { width: 100%; min-height: 45px; border: 1px solid var(--slate-300); border-radius: 10px; color: var(--slate-900); background: white; padding: 10px 12px; font-weight: 500; transition: border .15s ease, box-shadow .15s ease; }
.field textarea { resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--indigo-600); box-shadow: 0 0 0 3px rgba(70,89,232,.11); outline: none; }
.input-suffix { position: relative; }
.input-suffix input { padding-right: 52px; }
.input-suffix span { position: absolute; right: 13px; top: 11px; color: var(--slate-500); font-weight: 600; }
.form-panel > .field { margin-top: 18px; }
.section-title-row { margin: 34px 0 16px; display: flex; align-items: end; justify-content: space-between; gap: 20px; }
.section-title-row h2 { margin: 0 0 2px; font-size: 1.15rem; }
.section-title-row p { margin: 0; color: var(--slate-500); font-size: .88rem; }
.source-list { display: grid; gap: 14px; }
.source-card { position: relative; margin: 0; padding: 19px; border: 1px solid var(--slate-200); border-radius: var(--radius-md); background: #fbfcff; }
.source-card legend { padding: 0 7px; color: var(--indigo-700); font-size: .82rem; font-weight: 850; }
.source-remove { position: absolute; top: 9px; right: 10px; }
.source-grid { grid-template-columns: 1fr 1fr; }
.field-wide { grid-column: span 2; }
.target-grid { margin-top: 25px; padding-top: 25px; border-top: 1px solid var(--slate-200); grid-template-columns: 1fr 1fr; }
.form-actions { margin-top: 30px; display: flex; align-items: center; justify-content: flex-end; gap: 24px; }
.save-hint { color: var(--slate-500); font-size: .84rem; }

.admin-layout { display: grid; grid-template-columns: minmax(300px, .8fr) minmax(440px, 1.2fr); gap: 20px; align-items: start; }
.page-heading-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 10px; }
.admin-section-heading { margin: 34px 0 14px; display: flex; align-items: end; justify-content: space-between; gap: 20px; }
.admin-section-heading h2 { margin: 5px 0 3px; color: var(--navy-950); font-size: 1.35rem; }
.admin-section-heading p { margin: 0; color: var(--slate-500); font-size: .9rem; }
.groups-heading { margin-top: 42px; }
.admin-form-heading { margin-top: 0; }
.admin-active { margin-top: 20px; }
.admin-actions { gap: 12px; }
.admin-list-panel { min-width: 0; }
.student-name-grid { grid-template-columns: 1fr 1fr; }
.student-groups-fieldset { min-width: 0; margin: 19px 0 0; padding: 15px; border: 1px solid var(--slate-200); border-radius: 11px; background: #fbfcff; }
.student-groups-fieldset legend { padding: 0 6px; color: var(--slate-700); font-size: .88rem; font-weight: 750; }
.student-groups-fieldset > p { margin: 0 0 11px; color: var(--slate-500); font-size: .8rem; }
.student-group-options { display: flex; flex-wrap: wrap; gap: 8px; }
.student-group-option { position: relative; display: inline-flex; }
.student-group-option input { position: absolute; opacity: 0; pointer-events: none; }
.student-group-option span { padding: 8px 11px; border: 1px solid var(--slate-300); border-radius: 999px; color: var(--slate-700); background: white; font-size: .8rem; font-weight: 700; cursor: pointer; transition: .15s; }
.student-group-option input:checked + span { border-color: var(--indigo-600); color: var(--indigo-700); background: #eef0ff; box-shadow: 0 0 0 2px rgba(70,89,232,.08); }
.student-list-admin { display: grid; gap: 12px; }
.student-card { padding: 16px 17px; border: 1px solid var(--slate-200); border-radius: var(--radius-md); background: #fbfcff; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 18px; align-items: center; }
.student-card-main { min-width: 0; }
.student-card-title { display: flex; flex-wrap: wrap; align-items: center; gap: 9px; }
.student-card h3 { margin: 0; font-size: 1rem; overflow-wrap: anywhere; }
.student-card p { margin: 5px 0 8px; color: var(--slate-500); font-size: .84rem; overflow-wrap: anywhere; }
.student-groups-summary { display: flex; flex-wrap: wrap; gap: 6px; }
.student-groups-summary span { padding: 4px 7px; border-radius: 999px; color: var(--slate-700); background: var(--slate-200); font-size: .7rem; font-weight: 750; }
.student-card-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; align-items: center; gap: 8px; }
.group-list { display: grid; gap: 12px; }
.group-card { padding: 17px; border: 1px solid var(--slate-200); border-radius: var(--radius-md); background: #fbfcff; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 18px; align-items: center; }
.group-card-main { min-width: 0; }
.group-card-title { display: flex; align-items: center; gap: 10px; }
.group-card h3 { margin: 0; font-size: 1rem; }
.group-card p { margin: 6px 0 9px; color: var(--slate-500); font-size: .86rem; }
.group-card-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; align-items: center; gap: 8px; }
.members-panel { margin-top: 20px; }
.review-access-panel { margin-bottom: 22px; }
.access-summary { display: flex; justify-content: space-between; gap: 16px; margin-bottom: 20px; color: var(--slate-700); }
.access-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.access-grid h3 { margin: 0 0 12px; font-size: 1rem; }
.access-options { display: grid; gap: 10px; }
.status-controls { margin-bottom: 22px; }
.status-control-row { display: grid; grid-template-columns: minmax(220px, .7fr) minmax(420px, 1.7fr) auto; gap: 22px; align-items: end; }
.status-student-select { margin: 0; }
.status-checks { display: flex; flex-wrap: wrap; align-items: center; gap: 9px 16px; color: var(--slate-700); font-size: .84rem; }
.status-checks .field-label { flex-basis: 100%; color: var(--slate-700); font-weight: 750; }
.status-checks label { display: inline-flex; align-items: center; gap: 7px; cursor: pointer; }
.status-checks input { accent-color: var(--indigo-600); }
.student-status-list { display: grid; gap: 16px; }
.student-status-card { display: flex; flex-direction: column; padding: 24px; }
.student-status-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; padding-bottom: 17px; border-bottom: 1px solid var(--slate-200); }
.student-status-head h2 { margin: 0; color: var(--navy-950); font-size: 1.15rem; }
.student-status-head p { margin: 4px 0 0; color: var(--slate-500); font-size: .86rem; }
.student-note { order: 3; margin-top: 18px; padding: 14px; border: 1px solid var(--slate-200); border-radius: 12px; background: #fff; }
.student-note .field { gap: 7px; }
.student-note textarea { min-height: 92px; resize: vertical; }
.status-note-actions { display: flex; align-items: center; gap: 10px; margin-top: 10px; }
.status-note-state { color: var(--slate-500); font-size: .78rem; }
.student-status-metrics { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; padding-top: 18px; }
.status-metric { min-width: 0; padding: 14px; border-radius: 12px; background: #f8faff; }
.status-metric > span { display: block; margin-bottom: 8px; color: var(--slate-500); font-size: .76rem; font-weight: 750; }
.status-metric strong { display: block; color: var(--navy-950); font-size: 1rem; }
.status-metric small { display: block; margin-top: 3px; color: var(--slate-500); font-size: .76rem; }
.status-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.status-chip { display: inline-flex; padding: 5px 8px; border-radius: 999px; font-size: .72rem; font-weight: 750; }
.status-chip.warning { color: #915b00; background: #fff1c8; }
.status-chip.good { color: #167a61; background: #dbf7ef; }
.status-data-list { display: grid; gap: 7px; }
.status-detail-actions { display: flex; justify-content: flex-end; margin-top: 12px; }
.status-detail-button { padding: 7px 10px; font-size: .76rem; }
.status-data-row { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; color: var(--slate-700); font-size: .82rem; }
.status-data-row span { min-width: 0; overflow-wrap: anywhere; }
.status-data-row strong { flex: 0 0 auto; font-size: .86rem; }
.status-data-row strong.warning, .status-data-row strong.good { color: inherit; }
.status-data-row strong.warning { color: #915b00; }
.status-data-row strong.good { color: #167a61; }
.status-data-row-stack { display: grid; justify-content: stretch; gap: 2px; }
.status-data-row-stack small { color: var(--slate-500); font-size: .72rem; }
.status-alerts { display: grid; gap: 7px; }
.status-alert { padding: 8px 10px; border-left: 3px solid #e5a11a; border-radius: 7px; color: #795000; background: #fff7df; font-size: .8rem; }
.status-recommendation { border: 1px solid #d8ddff; background: #f5f6ff; }
.status-recommendation p { margin: 0; color: var(--slate-700); font-size: .83rem; line-height: 1.45; }
.member-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.member-option { min-width: 0; padding: 13px; border: 1px solid var(--slate-200); border-radius: 11px; display: flex; align-items: flex-start; gap: 11px; cursor: pointer; background: #fbfcff; }
.member-option input { margin-top: 4px; accent-color: var(--indigo-600); }
.member-option span, .member-option strong, .member-option small { min-width: 0; display: block; }
.member-option strong { overflow-wrap: anywhere; }
.member-option small { margin-top: 2px; color: var(--slate-500); overflow-wrap: anywhere; }

.exam-grid { display: grid; grid-template-columns: repeat(3, minmax(240px, 1fr)); gap: 18px; }
.exam-card { padding: 22px; border: 1px solid var(--slate-200); border-radius: 18px; background: white; box-shadow: 0 9px 28px rgba(31,54,101,.05); display: flex; flex-direction: column; }
.exam-card-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.exam-statuses { display: flex; align-items: center; flex-wrap: wrap; gap: 7px; }
.status { padding: 6px 9px; border-radius: 999px; font-size: .7rem; font-weight: 850; letter-spacing: .05em; }
.status.ACTIVO { color: #167a61; background: #dbf7ef; }
.status.PENDIENTE { color: #667085; background: #eef1f5; }
.status.EN_CURSO { color: #2458a6; background: #e3edff; }
.status.TERMINADO { color: #167a61; background: #dbf7ef; }
.status.BORRADOR { color: #846619; background: #fff2c2; }
.status.INACTIVO { color: #667085; background: #eef1f5; }
.exam-card h2 { margin: 18px 0 7px; font-size: 1.15rem; }
.exam-card p { margin: 0 0 22px; color: var(--slate-500); font-size: .9rem; flex: 1; }
.exam-meta { display: flex; gap: 14px; color: var(--slate-500); font-size: .8rem; }
.exam-actions {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--slate-200);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  align-items: stretch;
}
.exam-actions > .header-kicker {
  grid-column: 1 / -1;
  margin: 0;
  align-self: center;
  line-height: 1.35;
}
.exam-actions > .button-small {
  width: 100%;
  min-height: 56px;
  padding: 8px 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  white-space: normal;
  line-height: 1.2;
}
.exam-actions > .switch {
  grid-column: 1 / -1;
  justify-self: end;
  align-self: center;
  margin-top: 2px;
}
.switch { position: relative; display: inline-flex; align-items: center; gap: 8px; color: var(--slate-700); font-size: .82rem; font-weight: 700; }
.switch input { position: absolute; opacity: 0; }
.switch-track { width: 42px; height: 24px; padding: 3px; border-radius: 999px; background: var(--slate-300); transition: .2s; }
.switch-track::after { content: ""; display: block; width: 18px; height: 18px; border-radius: 50%; background: white; box-shadow: 0 2px 5px rgba(0,0,0,.2); transition: .2s; }
.switch input:checked + .switch-track { background: var(--teal-500); }
.switch input:checked + .switch-track::after { transform: translateX(18px); }

.runner-header { position: sticky; top: 0; z-index: 3; margin: -20px 0 28px; padding: 16px 0; display: grid; grid-template-columns: 130px 1fr 130px; align-items: center; gap: 20px; background: var(--sky-50); }
.runner-progress { text-align: center; color: var(--slate-700); font-size: .83rem; font-weight: 750; }
.progress-track { height: 7px; margin-top: 8px; border-radius: 999px; overflow: hidden; background: var(--slate-200); }
.progress-track span { display: block; width: 0; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--indigo-600), var(--teal-500)); transition: width .25s; }
.timer { justify-self: end; padding: 8px 13px; border-radius: 10px; color: var(--navy-900); background: white; font-weight: 850; font-variant-numeric: tabular-nums; }
.question-stack { max-width: 840px; margin: auto; display: grid; gap: 22px; }
.question-card { padding: clamp(22px, 3vw, 34px); border: 1px solid var(--slate-200); border-radius: var(--radius-lg); background: white; box-shadow: 0 10px 32px rgba(31,54,101,.05); }
.question-meta { display: flex; gap: 8px; color: var(--indigo-700); font-size: .75rem; font-weight: 800; }
.question-card h2 { margin: 15px 0 20px; font-size: 1.22rem; }
.question-card h3 { margin: 12px 0 18px; font-size: 1.15rem; line-height: 1.45; }
.question-card-top { display: flex; justify-content: space-between; align-items: center; }
.review-options { display: grid; gap: 9px; margin: 0; padding-left: 30px; color: var(--slate-700); }
.review-options li { padding: 10px 12px; border: 1px solid var(--slate-200); border-radius: 10px; }
.review-options li.correct { border-color: var(--teal-500); background: #e9fbf5; color: #126c58; font-weight: 750; }
.review-question-card { display: grid; gap: 16px; }
.review-question-card .field { gap: 7px; }
.review-wide { grid-column: 1 / -1; }
.review-options-grid, .review-result-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.review-edit-textarea { min-height: 150px !important; resize: vertical; }
.review-readonly-field { min-width: 0; display: grid; gap: 7px; color: var(--slate-700); font-size: .88rem; font-weight: 750; }
.review-readonly-value { min-height: 112px; padding: 12px; border: 1px solid var(--slate-200); border-radius: 10px; color: var(--slate-900); background: #f8faff; font-weight: 500; white-space: pre-wrap; overflow-wrap: anywhere; }
.review-readonly-field.review-wide .review-readonly-value { min-height: 92px; }
.question-explanation { margin: 18px 0 0 !important; padding: 12px 14px; border-radius: 10px; background: var(--sky-50); color: var(--slate-600) !important; }
.answers { display: grid; gap: 10px; }
.answer-option { position: relative; }
.answer-option input { position: absolute; opacity: 0; }
.answer-option label { min-height: 49px; padding: 12px 14px; border: 1px solid var(--slate-200); border-radius: 11px; display: flex; align-items: center; gap: 12px; cursor: pointer; transition: .15s; }
.answer-option label::before { content: attr(data-letter); width: 28px; height: 28px; flex: 0 0 28px; display: grid; place-items: center; border-radius: 8px; color: var(--slate-700); background: #eef2f8; font-weight: 850; }
.answer-option input:checked + label { border-color: var(--indigo-600); background: #f2f4ff; box-shadow: 0 0 0 2px rgba(70,89,232,.1); }
.answer-option input:checked + label::before { color: white; background: var(--indigo-600); }
.answer-option label.is-correct { border-color: var(--teal-500); background: #e9fbf5; color: #126c58; box-shadow: 0 0 0 2px rgba(23,184,144,.12); }
.answer-option label.is-correct::before { color: white; background: var(--teal-500); }
.answer-option label.is-wrong { border-color: #dc5f67; background: #fff0f1; color: #a02b35; box-shadow: 0 0 0 2px rgba(220,95,103,.1); }
.answer-option label.is-wrong::before { color: white; background: #dc5f67; }
.question-feedback { margin-top: 14px; padding: 12px 14px; border-radius: 11px; font-size: .9rem; }
.question-feedback.correct { color: #126c58; background: #e9fbf5; }
.question-feedback.wrong { color: #a02b35; background: #fff0f1; }
.question-feedback p { margin: 6px 0 0; color: inherit; }
.runner-actions { max-width: 840px; margin: 24px auto 0; display: flex; justify-content: flex-end; }

.result-card { max-width: 670px; margin: 4vh auto; padding: 46px; text-align: center; }
.result-ring { width: 150px; height: 150px; margin: 0 auto 28px; border-radius: 50%; display: grid; place-content: center; background: conic-gradient(var(--teal-500) var(--score, 0%), var(--slate-200) 0); box-shadow: inset 0 0 0 16px white; }
.result-ring strong, .result-ring span { display: block; }
.result-ring strong { font-size: 2.1rem; line-height: 1; }
.result-ring span { color: var(--slate-500); font-size: .75rem; }
.result-card h1 { margin: 10px 0 6px; }
.result-card > p { color: var(--slate-500); }
.result-stats { margin: 30px 0; display: grid; grid-template-columns: repeat(3, 1fr); border-block: 1px solid var(--slate-200); }
.result-stats div { padding: 18px 8px; }
.result-stats div + div { border-left: 1px solid var(--slate-200); }
.result-stats strong, .result-stats span { display: block; }
.result-stats strong { font-size: 1.6rem; }
.result-stats span { color: var(--slate-500); font-size: .78rem; }
.toast-region { position: fixed; z-index: 50; right: 22px; bottom: 22px; display: grid; gap: 10px; }
.toast { width: min(380px, calc(100vw - 44px)); padding: 14px 17px; border-radius: 12px; color: white; background: var(--navy-900); box-shadow: var(--shadow); animation: slideIn .25s ease; }
.toast.error { background: #a12d3b; }
.test-counter { align-self: end; padding: 10px 14px; border-radius: 999px; color: var(--indigo-700); background: #eef0ff; font-size: .84rem; font-weight: 800; }
.test-feed { display: grid; gap: 18px; }
.test-feed-card { padding: 22px; }
.test-feed-card h2 { margin: 10px 0 18px; color: var(--navy-950); font-size: 1.08rem; line-height: 1.5; }
.test-feed-meta { display: flex; flex-wrap: wrap; gap: 7px 12px; color: var(--slate-500); font-size: .75rem; font-weight: 700; }
.test-question-number { margin-top: 14px; color: var(--indigo-600); font-size: .72rem; font-weight: 850; letter-spacing: .08em; text-transform: uppercase; }
.test-answers { display: grid; gap: 10px; }
.test-answer { width: 100%; display: grid; grid-template-columns: 38px 1fr; align-items: center; gap: 11px; padding: 12px; border: 1px solid var(--slate-200); border-radius: 12px; color: var(--navy-950); background: white; text-align: left; cursor: pointer; }
.test-answer span { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 9px; color: var(--indigo-700); background: #eef0ff; font-weight: 850; }
.test-answer strong { font-size: .92rem; line-height: 1.4; }
.test-answer:hover:not(:disabled) { border-color: var(--indigo-500); box-shadow: 0 6px 20px rgba(61,70,220,.1); }
.test-answer.is-correct { border-color: #20a67a; background: #effcf7; }
.test-answer.is-correct span { color: #096b50; background: #cbf3e5; }
.test-answer.is-wrong { border-color: #c94c5b; background: #fff3f4; }
.test-answer.is-wrong span { color: #9d2838; background: #ffdce1; }
.test-feedback { margin-top: 14px; padding: 13px 15px; border-radius: 12px; }
.test-feedback.correct { color: #096b50; background: #dcf7ed; }
.test-feedback.wrong { color: #912535; background: #ffe7ea; }
.test-feedback p { margin: 6px 0 0; color: inherit; line-height: 1.45; }
@keyframes slideIn { from { transform: translateY(10px); opacity: 0; } }

@media (max-width: 1050px) {
  .hero { grid-template-columns: 1fr; padding-top: 4vh; }
  .hero-copy { max-width: 780px; }
  .hero h1 { max-width: 760px; }
  .hero-visual { max-width: 850px; }
  .exam-grid { grid-template-columns: repeat(2, minmax(230px, 1fr)); }
  .source-grid { grid-template-columns: 1fr 1fr; }
  .field-wide { grid-column: span 2; }
  .admin-layout { grid-template-columns: 1fr; }
  .status-control-row { grid-template-columns: 1fr; align-items: stretch; }
  .student-status-metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  .public-header { height: 76px; }
  .hero { min-height: auto; padding: 7vh 5vw; grid-template-columns: minmax(0, 1fr); }
  .hero h1 { font-size: clamp(2.7rem, 14vw, 4.2rem); }
  .hero-visual img { aspect-ratio: 1.18 / 1; object-position: 60% center; }
  .floating-progress { right: 2%; }
  .floating-score { left: 2%; }
  .app-shell { display: block; }
  .sidebar { transform: translateX(-105%); transition: transform .25s; box-shadow: 20px 0 50px rgba(0,0,0,.22); }
  .sidebar.open { transform: translateX(0); }
  .workspace { margin-left: 0; }
  .menu-toggle { display: grid; place-items: center; }
  .content { padding-top: 28px; }
  .page-heading { display: grid; }
  .app-header #push-enable { margin-left: auto; padding-inline: 10px; font-size: .78rem; }
  .page-heading-actions { justify-content: flex-start; }
  .two-columns, .target-grid, .source-grid, .exam-grid { grid-template-columns: 1fr; }
  .access-grid { grid-template-columns: 1fr; }
  .review-options-grid, .review-result-grid { grid-template-columns: 1fr; }
  .field-wide { grid-column: auto; }
  .form-actions { align-items: stretch; flex-direction: column; }
  .group-card { grid-template-columns: 1fr; }
  .group-card-actions { justify-content: flex-start; }
  .student-card { grid-template-columns: 1fr; }
  .student-card-actions { justify-content: flex-start; }
  .member-list { grid-template-columns: 1fr; }
  .student-status-metrics { grid-template-columns: 1fr; }
  .runner-header { grid-template-columns: auto 1fr auto; gap: 10px; }
  .runner-header .button { font-size: .82rem; padding: 9px 10px; white-space: nowrap; }
  .result-card { padding: 30px 20px; }
  .test-counter { justify-self: start; }
  .test-feed-card { padding: 16px; }
  .test-answer { grid-template-columns: 34px 1fr; padding: 10px; }
}

/* Fuerza columnas equilibradas en la revisión de preguntas. */
.teacher-review .question-card .two-columns { grid-template-columns: repeat(2, minmax(0, 1fr)); }
#teacher-review .question-card .two-columns { grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (max-width: 760px) { .teacher-review .question-card .two-columns { grid-template-columns: 1fr; } }
@media (max-width: 760px) { #teacher-review .question-card .two-columns { grid-template-columns: 1fr; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}