@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Inter:wght@300;400;500;600&family=Libre+Baskerville:ital,wght@0,400;0,700;1,400&display=swap');

:root {
    --primary: #0C1B2A;
    --primary-mid: #142233;
    --primary-light: #1A2D42;
    --primary-subtle: #243447;
    --crimson: #A51C30;
    --crimson-light: #C23043;
    --crimson-dark: #8A1726;
    --crimson-bg: rgba(165, 28, 48, 0.06);
    --gold: #DDBF5C;
    --gold-light: #E8D07A;
    --gold-bright: #F0DC8A;
    --gold-dark: #A88A34;
    --gold-bg: rgba(221, 191, 92, 0.08);
    --silver: #C0C6CE;
    --silver-light: #D3D8E0;
    --gray-50: #F8F9FA;
    --gray-100: #F1F3F5;
    --gray-200: #DEE2E6;
    --gray-300: #CED4DA;
    --gray-500: #6C757D;
    --gray-600: #495057;
    --gray-700: #343A40;
    --gray-800: #212529;
    --success: #059669;
    --warning: #D97706;
    --danger: #DC2626;
    --info: #0284C7;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Inter', sans-serif;
    background: var(--gray-50);
    color: var(--gray-800);
    line-height: 1.6;
    font-size: 14px;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Plus Jakarta Sans', sans-serif;
}

.italic-accent {
    font-family: 'Libre Baskerville', serif;
    font-style: italic;
}

/* === LAYOUT === */
.app-layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 260px;
    background: var(--primary);
    color: white;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
}

.sidebar-logo {
    padding: 24px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    text-align: center;
}

.sidebar-logo img {
    width: 180px;
    height: auto;
}

.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    color: rgba(255,255,255,0.55);
    cursor: pointer;
    transition: all 0.2s;
    font-size: 13px;
    font-weight: 500;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
}

.nav-item:hover {
    background: rgba(255,255,255,0.06);
    color: rgba(255,255,255,0.85);
}

.nav-item.active {
    background: rgba(255,255,255,0.1);
    color: white;
}

.nav-icon {
    width: 28px;
    height: 28px;
    background: var(--primary-light);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 12px;
    flex-shrink: 0;
}

.nav-item.active .nav-icon {
    background: var(--crimson);
}

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid rgba(255,255,255,0.06);
    font-size: 11px;
    color: rgba(255,255,255,0.3);
    text-align: center;
}

.main-content {
    flex: 1;
    margin-left: 260px;
    padding: 32px 40px;
    max-width: 1200px;
}

/* === LOGIN === */
.login-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--primary);
}

.login-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 48px 40px;
    width: 400px;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.login-card img {
    width: 220px;
    margin-bottom: 32px;
}

.login-card h2 {
    font-size: 20px;
    color: var(--primary);
    margin-bottom: 8px;
}

.login-card p {
    font-size: 13px;
    color: var(--gray-500);
    margin-bottom: 28px;
}

/* === FORMS === */
.form-group {
    margin-bottom: 18px;
}

.form-label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-input, .form-select, .form-textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    color: var(--gray-800);
    background: white;
    transition: border-color 0.2s;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--crimson);
    box-shadow: 0 0 0 3px rgba(165, 28, 48, 0.08);
}

.form-textarea {
    resize: vertical;
    min-height: 80px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-row-3 {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 16px;
}

/* === BUTTONS === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 13px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
}

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

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

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

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

.btn-outline {
    background: white;
    color: var(--gray-700);
    border: 1px solid var(--gray-200);
}

.btn-outline:hover {
    background: var(--gray-50);
    border-color: var(--gray-300);
}

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

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

.btn-sm {
    padding: 6px 14px;
    font-size: 12px;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 15px;
}

.btn-block {
    width: 100%;
    justify-content: center;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-icon {
    width: 22px;
    height: 22px;
    background: rgba(255,255,255,0.15);
    border-radius: 4px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 700;
}

/* === CARDS === */
.card {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    padding: 24px;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.card-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--primary);
}

/* === STATS === */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 28px;
}

.stat-card {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    padding: 20px 24px;
    transition: transform 0.2s;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.06);
}

.stat-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 14px;
    margin-bottom: 12px;
}

.stat-icon.blue { background: rgba(2, 132, 199, 0.1); color: var(--info); }
.stat-icon.orange { background: rgba(217, 119, 6, 0.1); color: var(--warning); }
.stat-icon.green { background: rgba(5, 150, 105, 0.1); color: var(--success); }
.stat-icon.crimson { background: var(--crimson-bg); color: var(--crimson); }

.stat-value {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 28px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 4px;
}

.stat-label {
    font-size: 12px;
    color: var(--gray-500);
    font-weight: 500;
}

/* === TABLE === */
.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.data-table thead th {
    padding: 12px 16px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    color: var(--gray-500);
    border-bottom: 1px solid var(--gray-200);
    text-align: left;
}

.data-table tbody td {
    padding: 14px 16px;
    font-size: 13px;
    color: var(--gray-700);
    border-bottom: 1px solid var(--gray-100);
}

.data-table tbody tr {
    cursor: pointer;
    transition: background 0.15s;
}

.data-table tbody tr:hover {
    background: var(--gray-50);
}

.data-table .valor-col {
    text-align: right;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 600;
    color: var(--primary);
}

/* === BADGES === */
.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-borrador { background: var(--gray-100); color: var(--gray-600); }
.badge-revision { background: rgba(217, 119, 6, 0.1); color: var(--warning); }
.badge-aprobada { background: rgba(2, 132, 199, 0.1); color: var(--info); }
.badge-enviada { background: rgba(12, 27, 42, 0.08); color: var(--primary); }
.badge-aceptada { background: rgba(5, 150, 105, 0.1); color: var(--success); }
.badge-rechazada { background: rgba(220, 38, 38, 0.1); color: var(--danger); }
.badge-vencida { background: var(--gray-100); color: var(--gray-500); }

/* === PAGE HEADER === */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 28px;
}

.page-title {
    font-size: 24px;
    font-weight: 800;
    color: var(--primary);
}

.page-subtitle {
    font-size: 13px;
    color: var(--gray-500);
    margin-top: 2px;
}

/* === SECTION === */
.section {
    margin-bottom: 28px;
}

.section-heading {
    font-size: 14px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-heading .heading-icon {
    width: 24px;
    height: 24px;
    background: var(--primary);
    color: white;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 700;
}

/* === COURSE CARD (form) === */
.course-card {
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    padding: 20px;
    margin-bottom: 12px;
    position: relative;
}

.course-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.course-card-num {
    width: 32px;
    height: 32px;
    background: var(--primary);
    color: white;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 800;
    font-size: 14px;
}

.course-remove {
    width: 28px;
    height: 28px;
    background: none;
    border: 1px solid var(--gray-300);
    border-radius: 6px;
    color: var(--gray-500);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    transition: all 0.2s;
}

.course-remove:hover {
    border-color: var(--danger);
    color: var(--danger);
    background: rgba(220, 38, 38, 0.05);
}

/* === DETAIL VIEW === */
.detail-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 28px;
}

.detail-title {
    font-size: 22px;
    font-weight: 800;
    color: var(--primary);
}

.detail-meta {
    display: flex;
    gap: 24px;
    margin-top: 8px;
    font-size: 13px;
    color: var(--gray-500);
}

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

.detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 24px;
}

.detail-field {
    padding: 14px 18px;
    background: var(--gray-50);
    border-radius: var(--radius-sm);
}

.detail-field-label {
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--gray-500);
    margin-bottom: 4px;
}

.detail-field-value {
    font-size: 14px;
    color: var(--gray-800);
    font-weight: 500;
}

/* === REVISION PANEL === */
.revision-panel {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    padding: 24px;
    margin-bottom: 24px;
}

.revision-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

.revision-score {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 32px;
    font-weight: 800;
    color: var(--primary);
}

.revision-score span {
    font-size: 16px;
    color: var(--gray-400);
    font-weight: 500;
}

.revision-obs {
    padding: 12px 16px;
    background: var(--gray-50);
    border-radius: var(--radius-sm);
    margin-bottom: 8px;
    font-size: 13px;
    border-left: 3px solid var(--gray-300);
}

.revision-obs.error { border-left-color: var(--danger); }
.revision-obs.mejora { border-left-color: var(--info); }
.revision-obs.advertencia { border-left-color: var(--warning); }

/* === TIMELINE === */
.timeline {
    position: relative;
    padding-left: 32px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 11px;
    top: 8px;
    bottom: 8px;
    width: 2px;
    background: var(--gray-200);
}

.timeline-item {
    position: relative;
    padding-bottom: 20px;
}

.timeline-dot {
    position: absolute;
    left: -32px;
    top: 4px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: white;
    border: 2px solid var(--gray-300);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: 700;
    color: var(--gray-500);
}

.timeline-dot.email { border-color: var(--info); color: var(--info); }
.timeline-dot.llamada { border-color: var(--success); color: var(--success); }
.timeline-dot.reunion { border-color: var(--crimson); color: var(--crimson); }
.timeline-dot.whatsapp { border-color: var(--success); color: var(--success); }

.timeline-content {
    background: var(--gray-50);
    border-radius: var(--radius-sm);
    padding: 14px 18px;
}

.timeline-date {
    font-size: 11px;
    color: var(--gray-500);
    margin-bottom: 4px;
}

.timeline-desc {
    font-size: 13px;
    color: var(--gray-700);
}

/* === MODAL === */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 32px;
    width: 560px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}

.modal-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 20px;
}

.modal-actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
    margin-top: 24px;
}

/* === TOAST === */
.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    padding: 14px 24px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    color: white;
    z-index: 2000;
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
    transition: transform 0.3s, opacity 0.3s;
}

.toast-success { background: var(--success); }
.toast-error { background: var(--danger); }
.toast-info { background: var(--info); }

/* === LOADING === */
.spinner {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-overlay {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px;
    color: var(--gray-500);
    gap: 16px;
}

.loading-overlay .spinner {
    width: 32px;
    height: 32px;
    border-color: var(--gray-200);
    border-top-color: var(--crimson);
}

/* === EMPTY STATE === */
.empty-state {
    text-align: center;
    padding: 60px 40px;
    color: var(--gray-500);
}

.empty-state-icon {
    width: 56px;
    height: 56px;
    background: var(--gray-100);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    font-weight: 800;
    color: var(--gray-400);
    margin: 0 auto 16px;
}

.empty-state h3 {
    font-size: 16px;
    color: var(--gray-700);
    margin-bottom: 8px;
}

.empty-state p {
    font-size: 13px;
    margin-bottom: 20px;
}

/* === PROXIMOS CONTACTOS === */
.contact-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.contact-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--gray-50);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background 0.15s;
}

.contact-item:hover {
    background: var(--gray-100);
}

.contact-date {
    font-size: 12px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 6px;
}

.contact-date.hoy { background: rgba(220, 38, 38, 0.1); color: var(--danger); }
.contact-date.manana { background: rgba(217, 119, 6, 0.1); color: var(--warning); }
.contact-date.proximo { background: rgba(2, 132, 199, 0.1); color: var(--info); }

/* === RESPONSIVE === */
@media (max-width: 1024px) {
    .sidebar { width: 220px; }
    .main-content { margin-left: 220px; padding: 24px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .form-row { grid-template-columns: 1fr; }
    .form-row-3 { grid-template-columns: 1fr; }
    .detail-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .sidebar { display: none; }
    .main-content { margin-left: 0; }
}

/* === CHECKBOX === */
.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--gray-700);
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--crimson);
}

/* === TABS === */
.tabs {
    display: flex;
    gap: 4px;
    border-bottom: 1px solid var(--gray-200);
    margin-bottom: 24px;
}

.tab {
    padding: 10px 20px;
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-500);
    border: none;
    background: none;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
}

.tab:hover { color: var(--gray-700); }
.tab.active { color: var(--crimson); border-bottom-color: var(--crimson); }