@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&display=swap');

:root {
    --bg-base: #F4F4F5;
    /* Fondo claro */
    --bg-surface: #FFFFFF;
    /* Blanco */
    --text-primary: #213754;
    /* Azul marino principal */
    --text-secondary: #5F6063;
    /* Gris oscuro */
    --border-color: #D9D9DB;
    /* Gris claro */
    --accent: #213754;
    /* Azul marino principal */
    --accent-hover: #1A2C44;
    /* Azul marino hover */
    --accent-text: #FFFFFF;
    /* Blanco */
    --accent-support: #E9EEF4;
    /* Azul suave de apoyo */
    --danger: #d45656;
    --radius: 8px;
    --shadow: 0 4px 12px rgba(33, 55, 84, 0.08);
}

[data-theme="dark"] {
    --bg-base: #1A2C44;
    /* Azul marino hover (oscuro) */
    --bg-surface: #213754;
    /* Azul marino principal */
    --text-primary: #FFFFFF;
    /* Blanco */
    --text-secondary: #BFC1C5;
    /* Gris suave */
    --border-color: #5F6063;
    /* Gris oscuro */
    --accent: #E9EEF4;
    /* Azul suave de apoyo */
    --accent-hover: #FFFFFF;
    /* Blanco */
    --accent-text: #1A2C44;
    /* Azul marino hover */
    --accent-support: #1A2C44;
    /* Azul marino hover (oscuro) */
    --danger: #f47c7c;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.35);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-base);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    transition: background-color 0.3s, color 0.3s;
}

.card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 32px;
    width: 100%;
    max-width: 400px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 16px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 500;
}

input[type="text"],
input[type="password"],
input[type="number"],
select {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background-color: var(--bg-base);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    outline: none;
}

input:focus,
select:focus {
    border-color: var(--accent);
}

select:disabled,
button:disabled {
    cursor: not-allowed;
    opacity: 0.55;
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
}

button {
    width: 100%;
    padding: 12px;
    background-color: var(--accent);
    color: var(--accent-text);
    border: none;
    border-radius: var(--radius);
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
}

button:hover {
    background-color: var(--accent-hover);
}

button:active {
    transform: scale(0.98);
}

.alert {
    padding: 12px;
    background-color: rgba(212, 86, 86, 0.1);
    color: var(--danger);
    border-radius: var(--radius);
    margin-bottom: 16px;
    font-size: 14px;
    text-align: center;
}

.theme-toggle {
    position: fixed;
    top: 16px;
    right: 16px;
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    z-index: 1000;
}

/* Layout for App */
.app-container {
    display: flex;
    width: 100%;
    min-height: 100vh;
    flex-direction: column;
}

@media (min-width: 769px) {
    .app-container {
        flex-direction: row;
    }
}

.top-bar {
    display: none;
    align-items: center;
    padding: 16px;
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.burger-menu {
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 24px;
    cursor: pointer;
    margin-right: 16px;
    padding: 0;
    width: auto;
}

.user-greeting {
    font-weight: 600;
}

.sidebar {
    width: 250px;
    background-color: var(--bg-surface);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: 24px 16px;
    position: fixed;
    top: 0;
    left: -100%;
    height: 100vh;
    z-index: 2000;
    transition: left 0.3s ease;
}

.sidebar.show {
    left: 0;
}

@media (min-width: 769px) {
    .sidebar {
        position: sticky;
        top: 0;
        height: 100vh;
        left: 0;
    }

    .top-bar {
        display: none !important;
    }
}

@media (max-width: 768px) {
    .top-bar {
        display: flex;
    }

    .main-content {
        padding: 24px 16px;
    }
}

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

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 8px;
}

.sidebar-logo {
    height: 100px;
    width: auto;
    border-radius: 4px;
    object-fit: contain;
}

.sidebar-header h2 {
    margin-bottom: 0;
    font-size: 16px;
    padding-left: 0;
}

.close-sidebar {
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 18px;
    cursor: pointer;
    padding: 0;
    width: auto;
    display: none;
}

@media (max-width: 768px) {
    .close-sidebar {
        display: block;
    }
}

.welcome-text {
    font-size: 14px;
    color: var(--text-secondary);
    padding-left: 8px;
    margin-bottom: 32px;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.sidebar-nav a,
.theme-toggle-sidebar {
    text-decoration: none;
    color: var(--text-secondary);
    padding: 12px;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 500;
    transition: background-color 0.2s, color 0.2s;
    background: transparent;
    border: none;
    text-align: left;
    width: 100%;
    cursor: pointer;
    font-family: inherit;
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-nav a:hover,
.sidebar-nav a.active,
.theme-toggle-sidebar:hover {
    background-color: var(--accent-support);
    color: var(--text-primary);
}

.nav-icon {
    width: 20px;
    height: 20px;
    stroke-width: 1.5;
    flex-shrink: 0;
}

.main-content {
    flex: 1;
    padding: 48px;
    display: flex;
    flex-direction: column;
}

.page-title {
    font-size: 28px;
    font-weight: 600;
}

.page-eyebrow {
    display: inline-block;
    margin-bottom: 4px;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    text-transform: uppercase;
}

/* Utils */
.flex-spacer {
    flex: 1;
}

/* Page Header layouts */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 16px;
}

.page-header-actions {
    display: flex;
    gap: 12px;
}

/* Sub Navigation Tabs */
.sub-nav {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 8px;
}

.sub-nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 500;
    transition: background-color 0.2s, color 0.2s;
}

.sub-nav-link:hover {
    background-color: var(--accent-support);
    color: var(--text-primary);
}

.sub-nav-link.active {
    background-color: var(--accent);
    color: var(--accent-text);
}

/* Administrative Modern Tables */
.table-container {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow-x: auto;
    margin-bottom: 24px;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
    text-align: left;
}

.admin-table th,
.admin-table td {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.admin-table th {
    background-color: var(--bg-base);
    color: var(--text-primary);
    font-weight: 600;
}

.admin-table tr:last-child td {
    border-bottom: none;
}

.admin-table tbody tr:hover {
    background-color: rgba(33, 55, 84, 0.02);
}

[data-theme="dark"] .admin-table tbody tr:hover {
    background-color: rgba(255, 255, 255, 0.02);
}

/* Badges */
.badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-success {
    background-color: rgba(33, 212, 164, 0.15);
    color: #00d4a4;
}

.badge-danger {
    background-color: rgba(212, 86, 86, 0.15);
    color: var(--danger);
}

/* Primary/Secondary small buttons for inline actions */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    background-color: var(--accent);
    color: var(--accent-text);
    border: none;
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
    width: auto;
}

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

.btn:active {
    transform: scale(0.98);
}

.btn-secondary {
    background-color: var(--accent-support);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background-color: var(--border-color);
}

.btn-danger {
    background-color: rgba(212, 86, 86, 0.1);
    color: var(--danger);
    border: 1px solid rgba(212, 86, 86, 0.2);
}

.btn-danger:hover {
    background-color: var(--danger);
    color: #ffffff;
}

.btn-group {
    display: flex;
    gap: 8px;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
    border-radius: 4px;
}

.empty-state {
    padding: 48px;
    text-align: center;
    color: var(--text-secondary);
}

.form-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 32px;
    max-width: 600px;
    width: 100%;
}

.inventory-detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-bottom: 24px;
}

.inventory-detail-card {
    max-width: none;
}

.inventory-detail-card h3,
.table-title {
    margin: 0;
    padding: 20px 24px 0;
    color: var(--text-primary);
    font-size: 18px;
    font-weight: 600;
}

.inventory-detail-card h3 {
    padding: 0;
    margin-bottom: 20px;
}

.detail-list {
    display: grid;
    gap: 16px;
}

.detail-list div {
    display: grid;
    gap: 4px;
}

.detail-list dt {
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

.detail-list dd {
    color: var(--text-primary);
    font-size: 15px;
}

.inventory-quantity {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 4px 10px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--bg-base);
    color: var(--text-primary);
    font-weight: 600;
}

.inline-code {
    display: inline-block;
    padding: 4px 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--bg-base);
    color: var(--text-primary);
    font-family: monospace;
    font-size: 13px;
}

.money-value {
    color: var(--text-primary);
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.purchase-layout {
    display: grid;
    grid-template-columns: minmax(280px, 360px) minmax(0, 1fr);
    gap: 24px;
    align-items: start;
    margin-bottom: 24px;
}

.purchase-panel {
    max-width: none;
}

.purchase-panel h3 {
    margin: 0 0 20px;
    color: var(--text-primary);
    font-size: 18px;
    font-weight: 600;
}

.purchase-summary {
    display: grid;
    gap: 12px;
    margin-top: 20px;
}

.purchase-summary div {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background-color: var(--bg-base);
}

.purchase-summary span {
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
}

.purchase-summary strong {
    color: var(--text-primary);
    font-size: 18px;
    font-variant-numeric: tabular-nums;
}

.purchase-line-error {
    display: none;
    margin-bottom: 16px;
    color: var(--danger);
    font-size: 14px;
    font-weight: 500;
}

.purchase-line-error.is-visible {
    display: block;
}

.form-actions,
.purchase-submit-bar {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

.purchase-lines-container {
    margin-bottom: 88px;
}

.purchase-submit-bar {
    position: sticky;
    bottom: 0;
    z-index: 20;
    align-items: center;
    padding: 16px 0 0;
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-base);
}

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

@media (max-width: 576px) {
    .form-actions,
    .purchase-submit-bar {
        flex-direction: column;
    }

    .form-actions .btn,
    .purchase-submit-bar .btn {
        width: 100%;
    }
}

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

@media (max-width: 576px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

/* Dashboard Premium Grid and Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
    margin-top: 16px;
}

.stat-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    gap: 8px;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background-color: var(--accent);
}

.stat-card-title {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-card-value {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
}

.filter-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 16px 24px;
    box-shadow: var(--shadow);
    margin-bottom: 24px;
}

.filter-form {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    gap: 16px;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-width: 150px;
    flex: 1;
}

.filter-group label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0;
}

.filter-input {
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background-color: var(--bg-base);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 14px;
    outline: none;
    width: 100%;
}

.filter-btn {
    width: auto;
    padding: 10px 24px;
    height: 40px;
}

.charts-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    margin-bottom: 32px;
}

@media (min-width: 992px) {
    .charts-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.chart-wrapper {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    min-height: 350px;
    display: flex;
    flex-direction: column;
}

.chart-wrapper h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 8px;
}

.chart-container {
    position: relative;
    flex: 1;
    width: 100%;
    height: 100%;
    min-height: 250px;
}

/* Drilldown Active Banner */
.drilldown-active-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: var(--accent-support);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 12px 20px;
    margin-bottom: 16px;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
}

.drilldown-info {
    display: flex;
    align-items: center;
    gap: 8px;
}

.drilldown-badge {
    background-color: var(--accent);
    color: var(--accent-text);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
}

.clear-filter-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 6px 12px;
    font-size: 12px;
    border-radius: var(--radius);
    width: auto;
    font-weight: 500;
}

.clear-filter-btn:hover {
    background-color: var(--bg-base);
}

.hidden {
    display: none !important;
}

/* Table Pagination controls */
.pagination-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-top: 16px;
    margin-bottom: 24px;
}

.pagination-container button {
    width: auto;
    padding: 8px 16px;
}

/* Botones Premium con Colores Sólidos para Exportación */
.btn-csv {
    background-color: #EAB308 !important; /* Amarillo premium */
    color: #1E293B !important; /* Contraste oscuro excelente */
    border: 1px solid #CA8A04 !important;
}

.btn-csv:hover {
    background-color: #CA8A04 !important;
    color: #1E293B !important;
}

.btn-xlsx {
    background-color: #16A34A !important; /* Verde Excel premium */
    color: #FFFFFF !important;
    border: 1px solid #15803D !important;
}

.btn-xlsx:hover {
    background-color: #15803D !important;
    color: #FFFFFF !important;
}

.btn-pdf {
    background-color: #DC2626 !important; /* Rojo PDF premium */
    color: #FFFFFF !important;
    border: 1px solid #B91C1C !important;
}

.btn-pdf:hover {
    background-color: #B91C1C !important;
    color: #FFFFFF !important;
}

/* Rejilla moderna para captura de combustible */
.capture-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    align-items: start;
    width: 100%;
    margin-top: 16px;
}

@media (min-width: 992px) {
    .capture-grid {
        grid-template-columns: 480px 1fr;
    }
}

.capture-info-side {
    display: flex;
    flex-direction: column;
    gap: 24px;
    width: 100%;
}

.info-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    gap: 16px;
    transition: all 0.3s ease;
}

.info-card h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 8px;
    margin-bottom: 4px;
}

.info-details-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 16px;
    margin-bottom: 8px;
}

.info-detail-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.info-detail-label {
    font-size: 11px;
    text-transform: uppercase;
    color: var(--text-secondary);
    font-weight: 500;
    letter-spacing: 0.5px;
}

.info-detail-value {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.empty-info-card {
    background-color: var(--bg-surface);
    border: 2px dashed var(--border-color);
    border-radius: var(--radius);
    padding: 48px 24px;
    text-align: center;
    color: var(--text-secondary);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    justify-content: center;
    box-shadow: var(--shadow);
}

.empty-info-icon {
    font-size: 40px;
    color: var(--border-color);
}

/* Responsive media queries for Dashboard and Fuel Capture */
@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 12px !important;
        margin-bottom: 20px !important;
    }
    
    .stat-card {
        padding: 16px !important;
        gap: 4px !important;
    }
    
    .stat-card-title {
        font-size: 11px !important;
    }
    
    .stat-card-value {
        font-size: 18px !important;
    }

    .chart-wrapper {
        padding: 16px !important;
        min-height: 300px !important;
    }

    .chart-wrapper h3 {
        font-size: 14px !important;
        margin-bottom: 12px !important;
        padding-bottom: 6px !important;
    }

    .page-title {
        font-size: 22px !important;
    }
    
    .filter-card {
        padding: 16px !important;
        margin-bottom: 16px !important;
    }
}

@media (max-width: 576px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr) !important; /* Keep side-by-side on very small screens for premium proportion */
    }

    .filter-form {
        flex-direction: column !important;
        align-items: stretch !important;
        gap: 12px !important;
    }

    .filter-group {
        width: 100% !important;
        min-width: 100% !important;
    }

    .filter-btn {
        width: 100% !important;
    }

    .submit-group {
        flex: 1 !important;
        width: 100% !important;
    }

    .page-header-actions {
        width: 100% !important;
        display: flex !important;
        gap: 8px !important;
    }

    .page-header-actions button {
        flex: 1 !important;
        justify-content: center !important;
        text-align: center !important;
        padding: 10px 4px !important;
        font-size: 11px !important;
    }

    .drilldown-active-banner {
        flex-direction: column !important;
        align-items: stretch !important;
        gap: 12px !important;
        text-align: center !important;
        padding: 12px 16px !important;
    }

    .drilldown-info {
        flex-direction: column !important;
        gap: 6px !important;
    }

    .clear-filter-btn {
        width: 100% !important;
        text-align: center !important;
        justify-content: center !important;
    }

    .pagination-container {
        flex-direction: row !important;
        gap: 8px !important;
        width: 100% !important;
        justify-content: space-between !important;
    }

    .pagination-container button {
        flex: 1 !important;
        padding: 8px !important;
        font-size: 12px !important;
    }

    #page-info {
        font-size: 11px !important;
    }

    /* Fuel capture page responsiveness */
    .info-card {
        padding: 16px !important;
        gap: 12px !important;
    }

    .info-details-grid {
        grid-template-columns: 1fr 1fr !important; /* Keep details ordered in 2 columns */
        gap: 12px !important;
    }

    .info-detail-label {
        font-size: 10px !important;
    }

    .info-detail-value {
        font-size: 12px !important;
    }

    .empty-info-card {
        padding: 32px 16px !important;
    }

    .empty-info-card p {
        font-size: 12px !important;
    }
}