/* OptiCloud - Sidebar Layout & Enhanced UI */
:root {
    --sidebar-width: 260px;
    --header-height: 64px;
    --bg: #f8fafc;
    --bg-card: #ffffff;
    --text: #0f172a;
    --text-muted: #64748b;
    --accent: #6366f1;
    --accent-hover: #4f46e5;
    --accent-light: #e0e7ff;
    --accent-bg: rgba(99, 102, 241, 0.08);
    --success: #10b981;
    --success-light: #d1fae5;
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --danger: #ef4444;
    --danger-light: #fee2e2;
    --border: #e2e8f0;
    --shadow: 0 1px 3px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.08);
    --shadow-lg: 0 10px 25px -5px rgba(99,102,241,0.12);
    --radius: 10px;
    --radius-lg: 14px;
}

* { box-sizing: border-box; }
html { font-size: 13px; }
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    margin: 0;
    min-height: 100vh;
    line-height: 1.6;
    /* display: flex; */
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    min-height: 100vh;
    background: var(--bg-card);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    position: fixed;
    left: 0;
    top: 0;
    z-index: 100;
}
.sidebar-header {
    padding: 1.5rem 1.25rem;
    border-bottom: 1px solid var(--border);
}
.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--text);
    font-weight: 700;
    font-size: 1.1rem;
}
.sidebar-brand:hover { color: var(--accent); }
.sidebar-icon {
    font-size: 1.5rem;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-light);
    color: var(--accent);
    border-radius: var(--radius);
}

.sidebar-nav {
    flex: 1;
    padding: 1rem 0.75rem;
    overflow-y: auto;
}
.nav-section {
    margin-bottom: 1.5rem;
}
.nav-section-title {
    display: block;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    padding: 0 0.75rem;
    margin-bottom: 0.5rem;
}
.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 1rem;
    color: var(--text-muted);
    text-decoration: none;
    border-radius: var(--radius);
    font-weight: 500;
    transition: all 0.15s ease;
    margin-bottom: 2px;
}
.nav-item:hover {
    background: var(--accent-bg);
    color: var(--accent);
}
.nav-item:active { background: var(--accent-light); }
.nav-icon {
    font-size: 1.1rem;
    width: 24px;
    text-align: center;
}
.nav-item-logout {
    color: var(--danger);
}
.nav-item.active {
    background: var(--accent-light);
    color: var(--accent);
    font-weight: 600;
}
.nav-item-logout:hover {
    background: var(--danger-light);
    color: #b91c1c;
}
.nav-section-bottom {
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

/* Main content area */
.app-main {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}
.main-content {
    flex: 1;
    padding: 2rem 2.5rem;
    max-width: 1400px;
    width: 100%;
}

.main-footer {
    padding: 1rem 2.5rem;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Page header */
.page-header {
    margin-bottom: 2rem;
}
.page-header h1 {
    margin: 0 0 0.25rem 0;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text);
}
.page-header .badge { margin-left: 0.5rem; vertical-align: middle; }
.page-subtitle {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* KPI Cards */
.kpi-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}
.kpi-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    transition: transform 0.2s, box-shadow 0.2s;
}
.kpi-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}
.kpi-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    border-radius: 12px;
}
.kpi-aws .kpi-icon { background: rgba(99, 102, 241, 0.15); }
.kpi-gcp .kpi-icon { background: rgba(16, 185, 129, 0.15); }
.kpi-savings .kpi-icon { background: rgba(245, 158, 11, 0.15); }
.kpi-unmapped .kpi-icon { background: rgba(239, 68, 68, 0.15); }
.kpi-content { display: flex; flex-direction: column; gap: 0.25rem; }
.kpi-label { font-size: 0.8rem; color: var(--text-muted); font-weight: 500; }
.kpi-value { font-size: 1.5rem; font-weight: 700; color: var(--text); }
.kpi-value small { font-size: 0.75rem; font-weight: 500; color: var(--text-muted); }

/* Charts */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}
.chart-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}
.chart-card h3 {
    margin: 0 0 1rem 0;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
}
.chart-container {
    position: relative;
    height: 280px;
}
.chart-doughnut { height: 260px; }
.chart-empty {
    padding: 2rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}
.chart-empty a { color: var(--accent); }

/* Dashboard bottom */
.parse-actions { margin-bottom: 1.5rem; }
.parse-actions .btn { margin-right: 0.5rem; }
.parse-summary { margin-bottom: 1.5rem; }
.parse-table .raw-line { max-width: 280px; font-size: 0.8rem; }
/* Jobs list */
.upload-section { margin-bottom: 2rem; }
.jobs-list { display: flex; flex-direction: column; gap: 1rem; }
.job-card { padding: 1.25rem; }
.job-header { display: flex; justify-content: space-between; align-items: flex-start; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 0.75rem; }
.job-title { display: flex; align-items: center; gap: 0.5rem; }
.job-meta { display: flex; gap: 1rem; font-size: 0.85rem; color: var(--text-muted); }
.job-error { font-size: 0.85rem; margin: 0.5rem 0; }
.job-actions { display: flex; gap: 0.5rem; margin-top: 0.75rem; flex-wrap: wrap; }
.job-actions-cell { display: flex; flex-wrap: wrap; align-items: center; gap: 0.35rem; }
.job-actions-cell .inline-form { margin: 0; }

.parse-table .raw-line code { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; display: inline-block; max-width: 100%; }

/* Service groups (expandable) */
.service-groups { display: flex; flex-direction: column; gap: 0.75rem; }
.service-group { padding: 0 !important; overflow: hidden; }
.service-group-header {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    background: transparent;
    border: none;
    cursor: pointer;
    text-align: left;
    font-size: 1rem;
    color: var(--text);
    transition: background 0.2s;
}
.service-group-header:hover { background: var(--accent-bg); }
.expand-icon { font-size: 0.7rem; color: var(--text-muted); min-width: 1rem; }
.service-name { flex: 1; font-weight: 600; }
.service-total { font-weight: 600; color: var(--accent); }
.service-details { padding: 0 1.25rem 1.25rem; }
.service-details .parse-table { margin-top: 0.5rem; font-size: 0.9rem; }
.service-table .service-row:hover { background: var(--accent-bg); }
.service-table .service-row .expand-icon { font-size: 0.7rem; color: var(--text-muted); }
.service-detail-cell { padding: 0.75rem 1.25rem 1rem !important; background: var(--bg); border-left: 3px solid var(--accent); }
.service-detail-cell .parse-table { margin: 0; font-size: 0.85rem; }

.dashboard-bottom {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
}

/* Cards */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.25rem; }
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: box-shadow 0.2s, border-color 0.2s;
}
.card:hover {
    box-shadow: var(--shadow-md);
    border-color: rgba(99, 102, 241, 0.2);
}
.card h3, .card h4 { margin-top: 0; margin-bottom: 0.5rem; color: var(--text); font-size: 1rem; }

/* Upload list */
.upload-list { list-style: none; padding: 0; margin: 0; }
.upload-list li {
    padding: 1rem 0;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}
.upload-list li:last-child { border-bottom: none; }
.upload-list a { text-decoration: none; font-weight: 500; color: var(--accent); }
.upload-list a:hover { text-decoration: underline; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.5rem 1.25rem;
    background: var(--accent);
    color: white !important;
    border: none;
    border-radius: 8px;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}
.btn:hover { background: var(--accent-hover); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-primary { background: var(--accent); color: white !important; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-sm { padding: 0.35rem 0.75rem; font-size: 0.85rem; }
.btn-outline { background: #e2e8f0; border: 1px solid #64748b; color: #0f172a !important; }
.btn-outline:hover { background: #cbd5e1; border-color: #475569; color: #0f172a !important; }
.btn-danger { background: #dc3545; color: white !important; border: none; }
.btn-danger:hover { background: #c82333; }

/* Badges */
.badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    font-size: 0.7rem;
    font-weight: 600;
    border-radius: 6px;
}
.badge-success { background: var(--success-light); color: #047857; }
.badge-warning { background: var(--warning-light); color: #b45309; }
.badge-danger { background: var(--danger-light); color: #b91c1c; }
.badge-secondary { background: var(--accent-light); color: var(--accent); }

/* Alerts */
.alert {
    padding: 1rem 1.25rem;
    border-radius: 8px;
    margin-bottom: 1.25rem;
}
.alert-danger { background: var(--danger-light); border: 1px solid #fecaca; color: #b91c1c; }
.alert-warning { background: var(--warning-light); border: 1px solid #fde68a; color: #b45309; }
.alert-success { background: var(--success-light); border: 1px solid #a7f3d0; color: #047857; }

/* Forms */
.upload-form .form-group { margin-bottom: 1.25rem; }
.upload-form label { display: block; margin-bottom: 0.5rem; font-weight: 500; color: var(--text); }
.upload-form input[type="file"] {
    display: block;
    margin-top: 0.5rem;
    padding: 0.75rem;
    border: 2px dashed var(--border);
    border-radius: 8px;
    background: var(--bg);
    cursor: pointer;
}
.upload-form input[type="file"]:hover { border-color: var(--accent); background: var(--accent-bg); }
.muted { color: var(--text-muted); font-size: 0.9rem; }

/* Tables */
.table-wrap {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    margin: 1rem 0;
}
.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-card);
}
.data-table th, .data-table td {
    padding: 0.875rem 1.25rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}
.data-table code {
    font-size: 0.8rem;
    background: var(--accent-light);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    color: var(--accent);
}
.data-table th {
    background: var(--bg);
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}
.data-table tr:hover td { background: var(--accent-bg); }
.data-table tr:last-child td { border-bottom: none; }

/* Summary cards */
.summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.25rem;
    margin-bottom: 2rem;
}
.summary-cards .card {
    padding: 1.5rem;
}
.summary-cards .card .big {
    font-size: 1.75rem;
    font-weight: 700;
    margin: 0.5rem 0 0 0;
    color: var(--accent);
}

/* Export actions */
.export-actions { margin-bottom: 1.5rem; }
.export-actions .btn { margin-right: 0.5rem; }

/* Form rows */
.form-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}
.form-row input, .form-row select {
    padding: 0.5rem 0.875rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: 8px;
    font-size: 0.9rem;
}
.form-row input:focus, .form-row select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-bg);
}
.form-inline .form-row { margin-bottom: 0.5rem; }

/* Section headings */
h2 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text);
    margin: 2rem 0 1rem 0;
    padding-bottom: 0.5rem;
}

/* Login page (split layout: hero left, form right) */
.login-page {
    min-height: 100vh;
    width: 100%;
    background: var(--bg);
}
.login-layout {
    display: flex;
    min-height: 100vh;
}
.login-hero {
    flex: 1;
    min-width: 0;
    background: linear-gradient(135deg, #6366f1 0%, #4f46e5 50%, #4338ca 100%);
    display: flex;
    align-items: center;
    padding: 3rem 4rem;
}
.login-hero-content {
    max-width: 480px;
    color: #fff;
}
.login-hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 0 0 0.5rem 0;
    letter-spacing: -0.02em;
}
.login-hero-tagline {
    font-size: 1.25rem;
    font-weight: 500;
    opacity: 0.95;
    margin: 0 0 1.5rem 0;
}
.login-hero-desc {
    font-size: 1rem;
    line-height: 1.7;
    opacity: 0.9;
    margin: 0 0 2rem 0;
}
.login-hero-features {
    list-style: none;
    margin: 0;
    padding: 0;
}
.login-hero-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0;
    font-size: 0.95rem;
    opacity: 0.95;
}
.login-hero-icon {
    font-size: 1.25rem;
    width: 28px;
    text-align: center;
    background: rgba(255,255,255,0.2);
    border-radius: 8px;
    padding: 0.25rem;
}
.login-form-panel {
    flex: 1;
    min-width: 0;
    display: flex;
    align-items: center;
    padding: 3rem 4rem;
    background: var(--bg-card);
    box-shadow: -4px 0 24px rgba(0,0,0,0.06);
}
.login-container {
    width: 100%;
}
.login-form-title {
    margin: 0 0 0.25rem 0;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text);
}
.login-subtitle { color: var(--text-muted); margin-bottom: 1.75rem; font-size: 0.95rem; }
.login-form .form-group { margin-bottom: 1.25rem; }
.login-form label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text);
}
.login-form input[type="text"],
.login-form input[type="password"] {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--bg);
    border: 2px solid var(--border);
    color: var(--text);
    border-radius: 10px;
    font-size: 1rem;
}
.login-form input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 4px var(--accent-bg);
}
.btn-block { width: 100%; margin-top: 0.5rem; padding: 0.875rem; font-size: 1rem; }

/* Login responsive: stack on small screens */
@media (max-width: 900px) {
    .login-layout {
        flex-direction: column;
    }
    .login-hero {
        padding: 2rem 1.5rem;
        min-height: auto;
    }
    .login-hero-content { max-width: none; }
    .login-hero-title { font-size: 1.75rem; }
    .login-hero-tagline { font-size: 1.1rem; }
    .login-hero-desc { margin-bottom: 1.5rem; }
    .login-form-panel {
        width: 100%;
        padding: 2rem 1.5rem;
        box-shadow: 0 -4px 24px rgba(0,0,0,0.06);
    }
}

/* Responsive */
@media (max-width: 900px) {
    .sidebar {
        width: 72px;
        padding: 0.5rem;
    }
    .sidebar-brand span:not(.sidebar-icon),
    .nav-section-title,
    .nav-item span:not(.nav-icon) {
        display: none;
    }
    .nav-item {
        justify-content: center;
        padding: 0.75rem;
    }
    .nav-icon { margin: 0; }
    .app-main { margin-left: 72px; }
}

@media (max-width: 700px) {
    .charts-grid { grid-template-columns: 1fr; }
    .chart-container { height: 250px; }
}

@media (max-width: 600px) {
    .sidebar {
        position: relative;
        width: 100%;
        flex-direction: row;
        flex-wrap: wrap;
    }
    .sidebar-header { flex: 1; }
    .sidebar-nav { display: flex; flex-wrap: wrap; gap: 0.5rem; padding: 0.5rem; }
    .nav-section { margin-bottom: 0; }
    .nav-section-title { display: none; }
    .nav-item span:not(.nav-icon) { display: inline; }
    .app-main { margin-left: 0; }
    .main-content { padding: 1.5rem; }
    .summary-cards { grid-template-columns: 1fr; }
}