:root {
    --bg-color: #f8fafc;
    --panel-bg: #ffffff;
    --border-color: #e2e8f0;
    --text-main: #0f172a;
    --text-dim: #64748b;
    --accent-color: #2563eb;
    --accent-hover: #1d4ed8;
    --accent-glow: rgba(37, 99, 235, 0.08);
    --success-color: #16a34a;
    --danger-color: #dc2626;
    --header-height: 56px;
    --sidebar-width: 260px;
    --transition: all 0.2s ease;
    --row-hover: rgba(37, 99, 235, 0.04);
    --row-alt: #f1f5f9;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    overflow: hidden;
}

/* ===== Layout ===== */
.app-container {
    display: grid;
    grid-template-areas: "header header" "sidebar main";
    grid-template-columns: var(--sidebar-width) 1fr;
    grid-template-rows: auto 1fr;
    height: 100vh;
}

/* ===== Header ===== */
.header {
    grid-area: header;
    background: linear-gradient(135deg, #ffffff 0%, #f1f5f9 100%);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    padding: 0 20px;
    justify-content: space-between;
    z-index: 10;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--accent-hover);
}

.logo svg {
    opacity: 0.9;
}

/* ===== Navegación Interna (Pestañas) ===== */
.nav-tab {
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    padding: 12px 20px;
    font-size: 0.95rem;
    color: var(--text-dim);
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
}

.nav-tab:hover {
    color: var(--accent-hover);
    background: var(--row-hover);
}

.nav-tab.active {
    color: var(--accent-color);
    border-bottom: 2px solid var(--accent-color);
    background: white;
}

/* ===== Buttons ===== */
.btn {
    border: none;
    padding: 8px 16px;
    border-radius: 8px;
    font-weight: 500;
    font-size: 0.85rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
    font-family: inherit;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-color) 0%, #1a6ddb 100%);
    color: white;
    box-shadow: 0 2px 8px rgba(47, 129, 247, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--accent-hover) 0%, var(--accent-color) 100%);
    box-shadow: 0 4px 16px rgba(47, 129, 247, 0.4);
    transform: translateY(-1px);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.btn-ghost {
    background: transparent;
    color: var(--text-dim);
    padding: 4px 8px;
}

.btn-ghost:hover {
    background: var(--border-color);
    color: var(--text-main);
}

/* ===== Sidebar ===== */
.sidebar {
    grid-area: sidebar;
    background-color: var(--panel-bg);
    border-right: 1px solid var(--border-color);
    padding: 16px;
    overflow-y: auto;
}

.sidebar-title {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-dim);
    margin-bottom: 12px;
}

.sidebar-empty {
    color: var(--text-dim);
    font-size: 0.85rem;
    padding: 8px;
}

.file-list {
    list-style: none;
}

.file-item {
    padding: 9px 10px;
    border-radius: 6px;
    cursor: pointer;
    margin-bottom: 2px;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--text-dim);
}

.file-item:hover {
    background-color: var(--border-color);
    color: var(--text-main);
}

.file-item.active {
    background-color: var(--accent-glow);
    color: var(--accent-hover);
    border-left: 3px solid var(--accent-color);
    font-weight: 500;
}

/* ===== Main Content ===== */
.main-content {
    grid-area: main;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

/* ===== Error ===== */
.error-banner {
    padding: 12px 20px;
    background: rgba(218, 54, 51, 0.1);
    border-bottom: 1px solid rgba(218, 54, 51, 0.3);
    color: var(--danger-color);
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
}

/* ===== Empty State ===== */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-dim);
    gap: 12px;
    text-align: center;
}

.empty-state svg {
    opacity: 0.3;
}

.empty-state h2 {
    font-weight: 600;
    font-size: 1.3rem;
    color: var(--text-main);
}

.empty-state p {
    font-size: 0.9rem;
}

/* ===== Search ===== */
.search-container {
    padding: 10px 16px;
    background-color: var(--panel-bg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 12px;
}

.search-wrapper {
    position: relative;
}

.search-icon {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-dim);
    pointer-events: none;
}

.search-input {
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 7px 12px 7px 34px;
    border-radius: 6px;
    width: 280px;
    outline: none;
    font-family: inherit;
    font-size: 0.85rem;
    transition: var(--transition);
}

.search-input:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.search-info {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-dim);
    font-size: 0.8rem;
}

/* ===== Table ===== */
.table-wrapper {
    flex: 1;
    overflow: auto;
    background: var(--bg-color);
}

.excel-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.82rem;
    table-layout: auto;
}

.excel-table thead {
    position: sticky;
    top: 0;
    z-index: 5;
}

.excel-table th {
    background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
    color: var(--text-dim);
    font-weight: 600;
    text-align: left;
    padding: 10px 12px;
    border-bottom: 2px solid var(--border-color);
    border-right: 1px solid var(--border-color);
    white-space: nowrap;
    text-transform: uppercase;
    font-size: 0.72rem;
    letter-spacing: 0.5px;
}

.excel-table td {
    padding: 8px 12px;
    border-bottom: 1px solid rgba(48, 54, 61, 0.5);
    border-right: 1px solid rgba(48, 54, 61, 0.3);
    white-space: nowrap;
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.excel-table tbody tr:nth-child(even) {
    background: var(--row-alt);
}

.excel-table tbody tr:hover {
    background: var(--row-hover);
}

.excel-table tbody tr:hover td {
    color: var(--text-main);
}

/* ===== Spinner ===== */
@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.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;
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-color);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-dim);
}

/* ===== Login Overlay ===== */
.login-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        linear-gradient(to bottom, rgba(15, 23, 42, 0.45) 0%, rgba(30, 41, 59, 0.55) 100%),
        url('ayacucho.png') center center / cover no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-card {
    background: rgba(255, 255, 255, 0.97);
    border-radius: 16px;
    padding: 40px 36px 30px 36px;
    width: 380px;
    max-width: 90vw;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(255, 255, 255, 0.1);
    animation: slideUp 0.5s ease 0.1s both;
}

.login-header {
    text-align: center;
    margin-bottom: 28px;
}

.login-body {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.login-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.login-field label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.login-field input {
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--text-main);
    background: var(--bg-color);
    outline: none;
    transition: var(--transition);
}

.login-field input:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.login-field input::placeholder {
    color: #94a3b8;
}

/* MARKDOWN STYLES FOR AURA/CUMPLIMIENTO */
.markdown-body h1,
.markdown-body h2,
.markdown-body h3 {
    margin-top: 1.2em;
    margin-bottom: 0.6em;
    color: var(--primary-color);
    font-weight: 700;
}

.markdown-body h1 {
    font-size: 1.25rem;
}

.markdown-body h2 {
    font-size: 1.15rem;
    border-bottom: 1px solid #e2e8f0;
    padding-bottom: 0.3em;
}

.markdown-body h3 {
    font-size: 1.05rem;
}

.markdown-body p {
    margin-top: 0;
    margin-bottom: 0.8em;
}

.markdown-body ul,
.markdown-body ol {
    margin-top: 0;
    margin-bottom: 1em;
    padding-left: 2em;
}

.markdown-body li {
    margin-bottom: 0.3em;
}

.markdown-body strong {
    color: var(--accent-color);
    font-weight: 600;
}