:root {
    --bg: #f4f9fc;
    --surface: #ffffff;
    --surface-soft: #f6fbfe;
    --surface-warm: #eef7fb;
    --sidebar: #2e6f95;
    --sidebar-2: #4689b0;
    --primary: #4b9fcc;
    --primary-hover: #3f89af;
    --primary-soft: #e8f5fb;
    --text: #2d4552;
    --muted: #718592;
    --line: #d7eaf2;
    --danger: #c86b6b;
    --danger-soft: #faeeee;
    --success: #4f8060;
    --success-soft: #edf6ef;
    --warning: #b28a35;
    --warning-soft: #fbf3dd;
    --shadow: 0 10px 28px rgba(58, 117, 148, 0.08);
    --shadow-soft: 0 6px 18px rgba(58, 117, 148, 0.06);
    --radius: 20px;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    min-height: 100%;
    font-family: "Inter", "Segoe UI", Roboto, Arial, sans-serif;
    background: linear-gradient(180deg, #fafdff 0%, var(--bg) 100%);
    color: var(--text);
}

/* LAYOUT */

.admin-layout {
    display: flex;
    min-height: 100vh;
}

/* SIDEBAR */

.sidebar {
    width: 280px;
    background: linear-gradient(180deg, var(--sidebar) 0%, var(--sidebar-2) 100%);
    color: #fff;
    padding: 22px 18px;
    display: flex;
    flex-direction: column;
    gap: 18px;
    box-shadow: 8px 0 30px rgba(70, 55, 45, 0.08);
}

.brand-card {
    background: rgba(255, 255, 255, 0.10);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 20px;
    padding: 16px;
}

.brand-logo {
    width: 100%;
    max-width: 210px;
    display: block;
    margin: 0 auto 16px auto;
    border-radius: 12px;
    background: white;
}

.brand-title {
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin: 0 0 6px 0;
}

.brand-subtitle {
    margin: 0;
    color: rgba(255, 255, 255, 0.78);
    font-size: 0.94rem;
    line-height: 1.5;
}

.admin-user-box {
    padding: 4px 6px 0;
}

.admin-user-label {
    font-size: 0.78rem;
    color: rgba(255, 255, 255, 0.68);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 6px;
}

.admin-user-name {
    font-size: 1rem;
    font-weight: 650;
    color: white;
}

.menu-title {
    font-size: 0.76rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: rgba(255, 255, 255, 0.55);
    margin: 6px 6px 2px;
}

.menu {
    display: grid;
    gap: 8px;
}

.menu a,
.sidebar-footer a {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: rgba(255, 255, 255, 0.84);
    border-radius: 14px;
    padding: 13px 14px;
    transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
    font-weight: 550;
}

.menu a:hover,
.sidebar-footer a:hover {
    background: rgba(255, 255, 255, 0.11);
    color: white;
    transform: translateX(1px);
}

.menu a.active {
    background: #ffffff;
    color: var(--sidebar);
    font-weight: 750;
}

.menu .menu-icon {
    width: 20px;
    text-align: center;
    font-size: 1rem;
}

.sidebar-footer {
    margin-top: auto;
    padding-top: 8px;
}

/* MAIN */

.main {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

/* TOPBAR */

.topbar {
    background: rgba(248, 252, 255, 0.90);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--line);
    padding: 18px 28px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.topbar-title h1 {
    margin: 0;
    font-size: 1.45rem;
    letter-spacing: -0.02em;
    color: var(--text);
}

.topbar-title p {
    margin: 4px 0 0;
    color: var(--muted);
    font-size: 0.95rem;
}

.topbar-badge {
    background: var(--primary-soft);
    color: var(--primary);
    border: 1px solid var(--line);
    padding: 10px 14px;
    border-radius: 999px;
    font-size: 0.9rem;
    font-weight: 700;
    white-space: nowrap;
}

/* CONTENT */

.content {
    padding: 28px;
}

/* FLASH */

.flash {
    background: #eef8fd;
    border: 1px solid var(--line);
    color: var(--primary);
    padding: 13px 15px;
    border-radius: 16px;
    margin-bottom: 16px;
    box-shadow: var(--shadow-soft);
}

/* TOOLBAR */

.toolbar,
.admin-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.toolbar-left h2,
.admin-topbar h1 {
    margin: 0;
    font-size: 1.35rem;
    letter-spacing: -0.02em;
}

.toolbar-left p,
.admin-topbar p {
    margin: 6px 0 0;
    color: var(--muted);
}

.toolbar-right,
.toolbar {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* CARDS / LIST */

.card,
.list-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 18px;
    margin-bottom: 16px;
}

.card-soft {
    background: var(--surface-soft);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 18px;
    margin-bottom: 16px;
}

.list-item {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 18px;
}

.list-main strong {
    display: block;
    font-size: 1.05rem;
    margin-bottom: 6px;
}

.muted {
    color: var(--muted);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* BUTTONS */

.btn {
    appearance: none;
    border: none;
    padding: 11px 16px;
    border-radius: 14px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 700;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 8px 18px rgba(90, 73, 63, 0.14);
}

.btn-primary:hover {
    background: var(--primary-hover);
}

.btn-secondary {
    background: var(--primary-soft);
    color: var(--text);
    border: 1px solid var(--line);
}

.btn-secondary:hover {
    background: #dff0f8;
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-danger:hover {
    background: #a95656;
}

/* ICON ACTIONS */

.icon-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.icon-btn {
    width: 40px;
    height: 40px;
    border-radius: 14px;
    border: 1px solid var(--line);
    background: #ffffff;
    color: var(--text);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
    font-size: 1rem;
    box-shadow: var(--shadow-soft);
}

.icon-btn:hover {
    background: #eef8fd;
    border-color: #c7e4f0;
    transform: translateY(-1px);
}

.icon-btn.danger {
    color: var(--danger);
    background: var(--danger-soft);
}

.icon-btn.danger:hover {
    background: #f3dddd;
}

/* FORMS */

.form-card {
    max-width: 780px;
}

.field {
    margin-top: 18px;
}

.field label,
.field .label {
    display: block;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text);
}

input[type="text"],
input[type="number"],
input[type="password"],
textarea,
select {
    width: 100%;
    border: 1px solid var(--line);
    background: #ffffff;
    border-radius: 14px;
    padding: 13px 14px;
    font-size: 1rem;
    color: var(--text);
    outline: none;
    transition: border 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

textarea:focus,
input:focus,
select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(79, 143, 179, 0.15);
}

textarea {
    min-height: 120px;
    resize: vertical;
}

select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml;utf8,<svg fill='%236f5b4f' height='20' viewBox='0 0 20 20' width='20' xmlns='http://www.w3.org/2000/svg'><path d='M5 7l5 5 5-5z'/></svg>");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px;
    cursor: pointer;
    padding-right: 40px;
    background-color: #ffffff !important;
    border: 1px solid #c8dde8 !important;
}

select option {
    color: var(--text);
}

.select-wrapper {
    position: relative;
}

.form-actions {
    margin-top: 28px;
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

/* METRICS */

.metrics {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 22px;
}

.metric-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 20px;
    box-shadow: var(--shadow);
    padding: 17px;
}

.metric-card .label {
    color: var(--muted);
    font-size: 0.88rem;
    margin-bottom: 8px;
}

.metric-card .value {
    font-size: 1.65rem;
    font-weight: 800;
    letter-spacing: -0.03em;
}

/* BADGES */

.badge,
.estado {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    padding: 6px 10px;
    font-size: 0.84rem;
    font-weight: 750;
    white-space: nowrap;
}

.badge.success,
.estado.completado {
    color: var(--success);
    background: var(--success-soft);
}

.badge.warning,
.estado.en_progreso {
    color: var(--warning);
    background: var(--warning-soft);
}

.badge.muted,
.estado.pendiente {
    color: #766f67;
    background: #f1ede8;
}

.badge.danger {
    color: var(--danger);
    background: var(--danger-soft);
}

/* DIVIDERS */

.row-divider {
    border-top: 1px solid var(--line);
    margin-top: 12px;
    padding-top: 12px;
}

/* DETAIL BLOCKS */

.detail-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.detail-item {
    background: var(--surface-soft);
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 14px;
}

.detail-item .label {
    color: var(--muted);
    font-size: 0.86rem;
    margin-bottom: 6px;
}

.detail-item .value {
    font-weight: 700;
    color: var(--text);
}

/* RESPONSIVE */

@media (max-width: 1100px) {
    .metrics {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 900px) {
    .admin-layout {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        border-radius: 0;
    }

    .topbar {
        padding: 18px;
        align-items: flex-start;
        flex-direction: column;
    }

    .topbar-badge {
        align-self: flex-start;
    }

    .content {
        padding: 18px;
    }
}

@media (max-width: 640px) {
    .metrics,
    .detail-grid {
        grid-template-columns: 1fr;
    }

    .list-item {
        flex-direction: column;
        align-items: stretch;
    }

    .icon-actions {
        justify-content: flex-start;
    }

    .toolbar,
    .admin-topbar {
        flex-direction: column;
        align-items: stretch;
    }

    .toolbar-right {
        width: 100%;
    }

    .btn {
        width: 100%;
    }

    .form-actions {
        flex-direction: column;
    }
}

.actions {
    margin-top: 24px;
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.respuestas-lista {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.respuesta-card {
    border: 1px solid var(--line);
    border-radius: 20px;
    background: var(--surface);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.respuesta-card summary {
    cursor: pointer;
    list-style: none;
    padding: 18px 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--surface-soft);
}

.resumen-ejercicio {
    flex: 1;
}

.respuesta-card summary::-webkit-details-marker {
    display: none;
}

.respuesta-card summary strong {
    display: block;
    margin-bottom: 4px;
}

.respuesta-card summary::after {
    content: "⌄";
    color: var(--muted);
    transition: transform 0.2s ease;
}

.respuesta-card[open] summary::after {
    transform: rotate(180deg);
}

.respuesta-body {
    padding: 18px 20px 20px;
}

.qa-item {
    padding: 14px 0;
    border-bottom: 1px solid var(--line);
}

.qa-item:last-child {
    border-bottom: none;
}

.qa-question {
    font-weight: 750;
    color: var(--text);
    margin-bottom: 6px;
}

.qa-answer {
    color: var(--muted);
    line-height: 1.65;
    white-space: pre-wrap;
}

@media (max-width: 640px) {
    .respuesta-card summary {
        flex-direction: column;
        align-items: flex-start;
    }
}

.resultados-grid {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.resultado-card {
    padding: 20px;
}

.resultado-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 18px;
    margin-bottom: 18px;
}

.resultado-header strong {
    font-size: 1.1rem;
}

.resultado-barra {
    width: 100%;
    height: 12px;
    border-radius: 999px;
    background: #f1ede8;
    overflow: hidden;
    margin-bottom: 18px;
}

.resultado-barra-fill {
    height: 100%;
    border-radius: 999px;
    background: var(--success);
}

.resultado-resumen {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
}

.resultado-dato {
    background: var(--surface-soft);
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 14px;
}

.resultado-dato .valor {
    display: block;
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--text);
}

.resultado-dato .label {
    display: block;
    margin-top: 4px;
    font-weight: 700;
    color: var(--text);
}

.resultado-dato .mini {
    display: block;
    margin-top: 4px;
    color: var(--muted);
    font-size: 0.88rem;
}

.resultado-footer {
    margin-top: 18px;
    display: flex;
    justify-content: flex-end;
}

@media (max-width: 900px) {
    .resultado-resumen {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .resultado-header {
        flex-direction: column;
    }

    .resultado-resumen {
        grid-template-columns: 1fr;
    }

    .resultado-footer {
        justify-content: stretch;
    }
}

.estadistica-opcion {
    padding: 14px 0;
    border-bottom: 1px solid var(--line);
}

.estadistica-opcion:last-child {
    border-bottom: none;
}

.estadistica-opcion-top {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 8px;
}

.estadistica-opcion-top strong {
    color: var(--text);
}

.estadistica-opcion-top span {
    font-weight: 800;
    color: var(--success);
}

.respuestas-abiertas {
    margin-top: 18px;
    border-top: 1px solid var(--line);
    padding-top: 16px;
}

.respuestas-abiertas summary {
    cursor: pointer;
    font-weight: 700;
    color: var(--primary);
    list-style: none;
}

.respuestas-abiertas summary::-webkit-details-marker {
    display: none;
}

.stats-tags {

    display: flex;

    flex-wrap: wrap;

    gap: 10px;

    margin-top: 16px;

}

.stat-tag {

    display: inline-flex;

    align-items: center;

    gap: 10px;

    background: var(--surface-soft);

    border: 1px solid var(--line);

    border-radius: 999px;

    padding: 10px 14px;
    font-size: 0.92rem;
    color: var(--text);
}

.stat-tag strong {
    background: white;
    border-radius: 999px;
    min-width: 24px;
    height: 24px;
    padding: 0 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.82rem;
    border: 1px solid var(--line);
}

.demografia-compacta {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    margin-bottom: 22px;
}

.demo-bloque {
    min-width: 0;
}

.stats-tags.compact {
    margin-top: 10px;
}

.stat-tag {
    padding: 8px 12px;
    font-size: 0.88rem;
}

@media (max-width: 900px) {
    .demografia-compacta {
        grid-template-columns: 1fr;
    }
}