:root {
    --bg: #eef2f6;
    --panel: #ffffff;
    --panel-soft: #f7f9fc;
    --text: #1f2937;
    --muted: #6b7280;
    --line: #d9e0ea;
    --brand: #16324f;
    --brand-soft: #24496d;
    --accent: #4b7bec;
    --accent-soft: #dbe8ff;
    --shadow: 0 12px 32px rgba(22, 50, 79, 0.08);
    --radius-lg: 22px;
    --radius-md: 16px;
    --radius-sm: 12px;
    --sidebar-width: 280px;
    --max-content: 1200px;
    --font: "Segoe UI", Arial, sans-serif;
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    min-height: 100%;
}

body {
    font-family: var(--font);
    color: var(--text);
    background:
        radial-gradient(circle at top left, rgba(75, 123, 236, 0.12), transparent 30%),
        linear-gradient(180deg, #f5f8fc 0%, #eef2f6 100%);
}

a {
    color: inherit;
    text-decoration: none;
}

.app-layout {
    display: grid;
    grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
    min-height: 100vh;
}

.app-sidebar {
    background: linear-gradient(180deg, var(--brand) 0%, #10263d 100%);
    color: #fff;
    padding: 24px 18px;
    display: flex;
    flex-direction: column;
    gap: 24px;
    box-shadow: 8px 0 30px rgba(16, 38, 61, 0.15);
}

.brand {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 8px 10px 18px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.brand-mark {
    width: 44px;
    height: 44px;
    border-radius: 14px;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, #78a6ff, #4b7bec);
    color: #fff;
    font-weight: 700;
    box-shadow: 0 12px 24px rgba(75, 123, 236, 0.35);
}

.brand-text strong,
.brand-text span {
    display: block;
}

.brand-text span {
    color: rgba(255, 255, 255, 0.72);
    font-size: 0.9rem;
    margin-top: 2px;
}

.side-nav {
    display: grid;
    gap: 8px;
}

.side-nav__link {
    display: block;
    padding: 12px 14px;
    border-radius: 14px;
    color: rgba(255, 255, 255, 0.86);
    transition: background-color 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.side-nav__link:hover,
.side-nav__link.is-active {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    transform: translateX(2px);
}

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

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 22px 28px;
    background: rgba(255, 255, 255, 0.82);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(217, 224, 234, 0.9);
}

.topbar__eyebrow {
    margin: 0 0 4px;
    color: var(--muted);
    font-size: 0.88rem;
}

.topbar__title {
    margin: 0;
    font-size: 1.35rem;
    color: var(--brand);
}

.userbox {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 10px 14px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 999px;
    box-shadow: var(--shadow);
}

.userbox__meta {
    display: grid;
    text-align: right;
    line-height: 1.2;
}

.userbox__meta strong {
    font-size: 0.95rem;
}

.userbox__meta span {
    font-size: 0.82rem;
    color: var(--muted);
}

.logout-btn {
    padding: 10px 14px;
    border-radius: 999px;
    background: var(--brand);
    color: #fff;
    font-size: 0.92rem;
}

.content-area {
    width: min(100%, var(--max-content));
    margin: 0 auto;
    padding: 28px;
    flex: 1;
}

.content-area > * {
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    padding: 28px;
}

.patient-form {
    display: grid;
    gap: 18px;
}

.form-section {
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    padding: 16px;
    background: var(--panel-soft);
}

.form-section h3 {
    margin: 0 0 12px;
    color: var(--brand);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(220px, 1fr));
    gap: 12px;
}

.form-grid label {
    display: grid;
    gap: 6px;
    font-size: 0.92rem;
    color: var(--text);
}

.form-grid input,
.form-grid select,
.form-grid textarea {
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: #fff;
}

.form-grid .full-width {
    grid-column: 1 / -1;
}

.form-grid .inline-check {
    display: flex;
    align-items: center;
    gap: 8px;
}

.guardian-list {
    display: grid;
    gap: 12px;
    margin-top: 12px;
}

.guardian-item {
    border: 1px dashed var(--line);
    border-radius: var(--radius-sm);
    background: #fff;
    padding: 12px;
}

.form-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.form-container {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    padding: 22px;
}

.footer-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 12px;
    padding-top: 14px;
    border-top: 1px solid var(--line);
    flex-wrap: wrap;
}

.btn-form {
    border: 0;
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    font-size: 0.92rem;
    cursor: pointer;
}

.btn-limpiar {
    background: #e2e8f0;
    color: #0f172a;
}

.btn-cancelar {
    background: #334155;
    color: #fff;
    display: inline-flex;
    align-items: center;
}

.btn-guardar {
    background: var(--brand);
    color: #fff;
}

.toast-container {
    position: fixed;
    top: 16px;
    right: 16px;
    z-index: 9999;
    display: grid;
    gap: 8px;
    width: min(90vw, 380px);
}

.toast {
    background: #fff;
    border-left: 4px solid #16a34a;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow);
    padding: 12px;
    font-size: 0.9rem;
}

.toast.is-error {
    border-left-color: #dc2626;
}

.patients-table-wrap {
    width: 100%;
    overflow-x: auto;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: #fff;
}

.patients-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 980px;
}

.patients-table th,
.patients-table td {
    padding: 12px 10px;
    border-bottom: 1px solid var(--line);
    text-align: left;
    font-size: 0.9rem;
    vertical-align: top;
}

.patients-table th {
    background: var(--panel-soft);
    color: var(--brand);
    font-weight: 700;
}

.patients-empty {
    text-align: center !important;
    color: var(--muted);
    padding: 18px !important;
}

.patient-status {
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    padding: 4px 10px;
    font-size: 0.82rem;
    border: 1px solid transparent;
}

.patient-status.is-active {
    color: #166534;
    background: #dcfce7;
    border-color: #bbf7d0;
}

.patient-status.is-inactive {
    color: #991b1b;
    background: #fee2e2;
    border-color: #fecaca;
}

.patient-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.patient-action-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 5px 10px;
    font-size: 0.82rem;
    background: #fff;
}

.patient-action-link:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.agenda-filters {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 10px;
    align-items: end;
}

.agenda-filters label {
    display: grid;
    gap: 6px;
    font-size: 0.9rem;
}

.agenda-filters input,
.agenda-filters select {
    padding: 9px 10px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: #fff;
}

.agenda-filter-actions {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
}

.agenda-day-view {
    margin-top: 16px;
}

.agenda-day-title {
    font-weight: 700;
    color: var(--brand);
    margin-bottom: 8px;
}

.agenda-table-wrap {
    overflow-x: auto;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: #fff;
}

.agenda-table {
    width: 100%;
    min-width: 900px;
    border-collapse: collapse;
}

.agenda-table th,
.agenda-table td {
    padding: 10px;
    border-bottom: 1px solid var(--line);
    font-size: 0.9rem;
    text-align: left;
}

.agenda-table th {
    background: var(--panel-soft);
    color: var(--brand);
}

.agenda-empty {
    text-align: center !important;
    color: var(--muted);
    padding: 18px !important;
}

.agenda-status {
    display: inline-flex;
    padding: 4px 9px;
    border-radius: 999px;
    font-size: 0.8rem;
    border: 1px solid transparent;
}

.agenda-status-por_confirmar { background: #fef3c7; color: #92400e; border-color: #fde68a; }
.agenda-status-confirmada { background: #dbeafe; color: #1e40af; border-color: #bfdbfe; }
.agenda-status-realizada { background: #dcfce7; color: #166534; border-color: #bbf7d0; }
.agenda-status-reprogramada { background: #ede9fe; color: #5b21b6; border-color: #ddd6fe; }
.agenda-status-cancelada { background: #fee2e2; color: #991b1b; border-color: #fecaca; }
.agenda-status-no_asistio { background: #f3f4f6; color: #374151; border-color: #e5e7eb; }

.agenda-status-form {
    display: flex;
    gap: 6px;
    align-items: center;
    flex-wrap: wrap;
}

.agenda-status-form select {
    padding: 7px 8px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
}

.rooms-table-wrap {
    width: 100%;
    overflow-x: auto;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: #fff;
}

.rooms-table {
    width: 100%;
    min-width: 860px;
    border-collapse: collapse;
}

.rooms-table th,
.rooms-table td {
    padding: 10px;
    border-bottom: 1px solid var(--line);
    font-size: 0.9rem;
    text-align: left;
    vertical-align: top;
}

.rooms-table th {
    background: var(--panel-soft);
    color: var(--brand);
}

.rooms-empty {
    text-align: center !important;
    color: var(--muted);
    padding: 18px !important;
}

.room-inline-form {
    display: grid;
    grid-template-columns: 1fr 1fr auto auto;
    gap: 6px;
}

.room-inline-form input,
.room-inline-form select {
    padding: 7px 8px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
}

.agenda-session-form {
    margin-top: 6px;
}

.session-badge {
    display: inline-flex;
    margin-top: 6px;
    border-radius: 999px;
    padding: 4px 9px;
    font-size: 0.8rem;
    background: #e2e8f0;
    color: #1f2937;
}

.session-badge.done {
    background: #dcfce7;
    color: #166534;
}

.sessions-table-wrap {
    width: 100%;
    overflow-x: auto;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: #fff;
}

.sessions-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 980px;
}

.sessions-table th,
.sessions-table td {
    padding: 10px;
    border-bottom: 1px solid var(--line);
    text-align: left;
    font-size: 0.9rem;
    vertical-align: top;
}

.sessions-table th {
    background: var(--panel-soft);
    color: var(--brand);
}

.sessions-empty {
    text-align: center !important;
    color: var(--muted);
    padding: 18px !important;
}

.sessions-detail-grid {
    display: grid;
    gap: 8px;
    grid-template-columns: repeat(2, minmax(220px, 1fr));
}

.dashboard-page {
    display: block;
}

.dashboard-grid {
    display: grid;
    gap: 12px;
}

.dashboard-grid-4 {
    grid-template-columns: repeat(4, minmax(160px, 1fr));
}

.dashboard-grid-3 {
    grid-template-columns: repeat(3, minmax(180px, 1fr));
}

.dashboard-grid-2 {
    grid-template-columns: repeat(2, minmax(260px, 1fr));
}

.kpi-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    padding: 14px;
    display: grid;
    gap: 6px;
}

.kpi-label {
    font-size: 0.84rem;
    color: var(--muted);
}

.kpi-value {
    font-size: 1.3rem;
    color: var(--brand);
}

.kpi-card small {
    color: var(--muted);
}

.kpi-green {
    border-color: #bbf7d0;
    background: #f0fdf4;
}

.kpi-red {
    border-color: #fecaca;
    background: #fef2f2;
}

.kpi-blue {
    border-color: #bfdbfe;
    background: #eff6ff;
}

.professional-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 10px;
}

.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9998;
}

.modal-content {
    width: min(90vw, 420px);
    background: #fff;
    border-radius: var(--radius-md);
    padding: 18px;
    border: 1px solid var(--line);
}

.modal-content h3 {
    margin: 0 0 8px;
    color: var(--brand);
}

.modal-content p {
    margin: 0;
    color: var(--muted);
}

.modal-buttons {
    margin-top: 14px;
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

.modal-btn {
    border: 0;
    border-radius: var(--radius-sm);
    padding: 9px 12px;
    cursor: pointer;
}

.modal-btn.confirm {
    background: var(--brand);
    color: #fff;
}

.modal-btn.cancel {
    background: #e2e8f0;
    color: #0f172a;
}

@media (max-width: 1024px) {
    .app-layout {
        grid-template-columns: 1fr;
    }

    .app-sidebar {
        padding: 18px;
    }

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

    .userbox {
        width: 100%;
        border-radius: var(--radius-md);
        justify-content: space-between;
    }
}

@media (max-width: 640px) {
    .content-area {
        padding: 16px;
    }

    .content-area > * {
        padding: 20px;
    }

    .userbox {
        flex-direction: column;
        align-items: flex-start;
    }

    .userbox__meta {
        text-align: left;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .form-grid .full-width {
        grid-column: auto;
    }

    .room-inline-form {
        grid-template-columns: 1fr;
    }

    .sessions-detail-grid {
        grid-template-columns: 1fr;
    }

    .dashboard-grid-4,
    .dashboard-grid-3,
    .dashboard-grid-2 {
        grid-template-columns: 1fr;
    }
}