/* Oracle Upgrade Platform - Main Styles */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --sidebar-bg: #1a1d29;
    --sidebar-hover: #252836;
    --sidebar-active: #2d3142;
    --sidebar-width: 240px;
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;
    --bg: #f1f5f9;
    --card-bg: #fff;
    --text: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --mono: 'Cascadia Code', 'Fira Code', 'JetBrains Mono', Consolas, monospace;
}

body { font-family: var(--font); background: var(--bg); color: var(--text); line-height: 1.5; }

/* Layout */
.layout { display: flex; min-height: 100vh; }
.sidebar {
    width: var(--sidebar-width); background: var(--sidebar-bg); color: #cbd5e1;
    display: flex; flex-direction: column; position: fixed; height: 100vh; z-index: 100;
}
.sidebar-header { padding: 20px 16px; border-bottom: 1px solid rgba(255,255,255,0.08); }
.logo { display: flex; align-items: center; gap: 10px; color: #fff; font-size: 15px; font-weight: 600; }
.sidebar-nav { flex: 1; padding: 12px 8px; overflow-y: auto; }
.sidebar-footer { padding: 12px 8px; border-top: 1px solid rgba(255,255,255,0.08); }
.nav-item {
    display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: 8px;
    color: #94a3b8; text-decoration: none; font-size: 14px; transition: all 0.15s;
}
.nav-item:hover { background: var(--sidebar-hover); color: #e2e8f0; }
.nav-item.active { background: var(--sidebar-active); color: #fff; }
.content { margin-left: var(--sidebar-width); flex: 1; display: flex; flex-direction: column; }
.topbar {
    display: flex; align-items: center; justify-content: space-between;
    padding: 16px 32px; background: var(--card-bg); border-bottom: 1px solid var(--border);
}
.page-title { font-size: 20px; font-weight: 600; }
.page-content { padding: 24px 32px; flex: 1; }

/* Cards */
.card {
    background: var(--card-bg); border-radius: 12px; border: 1px solid var(--border);
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}
.card-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 16px 20px; border-bottom: 1px solid var(--border);
}
.card-header h3 { font-size: 15px; font-weight: 600; }
.card-body { padding: 20px; }
.mt-4 { margin-top: 20px; }

/* Grid */
.grid { display: grid; gap: 20px; }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }

/* Version Cards */
.version-card .card-body { text-align: center; padding: 24px; }
.version-number { font-size: 28px; font-weight: 700; color: var(--primary); }
.version-label { font-size: 12px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; margin-top: 4px; }
.patches-list { margin-top: 12px; font-size: 12px; color: var(--text-muted); text-align: left; max-height: 100px; overflow-y: auto; }
.patches-list div { padding: 2px 0; border-bottom: 1px solid var(--border); }

/* Status Badge */
.status-badge {
    display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 11px;
    font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px;
}
.status-badge.running, .status-badge.open { background: #dbeafe; color: #1d4ed8; }
.status-badge.completed, .status-badge.resolved { background: #dcfce7; color: #15803d; }
.status-badge.failed, .status-badge.error { background: #fee2e2; color: #b91c1c; }
.status-badge.pending { background: #f1f5f9; color: #475569; }
.status-badge.cancelled, .status-badge.skipped { background: #fef3c7; color: #92400e; }

/* Buttons */
.btn {
    display: inline-flex; align-items: center; gap: 6px; padding: 8px 16px;
    border: none; border-radius: 8px; font-size: 13px; font-weight: 500;
    cursor: pointer; transition: all 0.15s; text-decoration: none;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--primary-hover); }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover:not(:disabled) { background: #16a34a; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover:not(:disabled) { background: #dc2626; }
.btn-secondary { background: #e2e8f0; color: var(--text); }
.btn-secondary:hover:not(:disabled) { background: #cbd5e1; }
.btn-warning { background: var(--warning); color: #fff; }
.btn-full { width: 100%; justify-content: center; }
.btn-sm { padding: 4px 10px; font-size: 12px; }

/* Forms */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; font-weight: 500; margin-bottom: 6px; color: var(--text); }
.form-group input, .form-select {
    width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px;
    font-size: 14px; background: #fff; color: var(--text); transition: border 0.15s;
}
.form-group input:focus, .form-select:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(99,102,241,0.1); }
.form-group.inline { display: flex; align-items: center; gap: 10px; }
.form-group.inline label { margin-bottom: 0; }
.form-group.inline .form-select { width: auto; }

/* Tables */
.table { width: 100%; border-collapse: collapse; font-size: 13px; }
.table th { text-align: left; padding: 10px 12px; background: #f8fafc; color: var(--text-muted); font-weight: 600; font-size: 11px; text-transform: uppercase; letter-spacing: 0.5px; border-bottom: 2px solid var(--border); }
.table td { padding: 10px 12px; border-bottom: 1px solid var(--border); }
.table tr:hover td { background: #f8fafc; }
.text-center { text-align: center; }

/* Log Terminal */
.log-terminal {
    background: #0f172a; color: #e2e8f0; font-family: var(--mono); font-size: 12px;
    padding: 16px; border-radius: 8px; height: 400px; overflow-y: auto; line-height: 1.6;
    white-space: pre-wrap; word-break: break-all;
}
.log-terminal .log-error { color: #fca5a5; }
.log-terminal .log-warn { color: #fcd34d; }
.log-terminal .log-success { color: #86efac; }
.log-terminal .log-info { color: #93c5fd; }

/* Pipeline (Step Visualization) */
.pipeline {
    display: flex; align-items: center; gap: 0; padding: 20px 0; overflow-x: auto;
}
.pipeline-step {
    display: flex; flex-direction: column; align-items: center; min-width: 120px; position: relative;
}
.pipeline-step:not(:last-child)::after {
    content: ''; position: absolute; top: 18px; left: 60%; width: calc(100% - 20px);
    height: 2px; background: var(--border);
}
.pipeline-step.completed:not(:last-child)::after { background: var(--success); }
.pipeline-step.running:not(:last-child)::after { background: var(--info); }
.pipeline-circle {
    width: 36px; height: 36px; border-radius: 50%; display: flex; align-items: center;
    justify-content: center; font-size: 14px; font-weight: 600; z-index: 1;
    border: 2px solid var(--border); background: var(--card-bg); color: var(--text-muted);
}
.pipeline-step.completed .pipeline-circle { background: var(--success); border-color: var(--success); color: #fff; }
.pipeline-step.running .pipeline-circle { background: var(--info); border-color: var(--info); color: #fff; animation: pulse 1.5s infinite; }
.pipeline-step.failed .pipeline-circle { background: var(--danger); border-color: var(--danger); color: #fff; }
.pipeline-step.skipped .pipeline-circle { background: var(--warning); border-color: var(--warning); color: #fff; }
.pipeline-label { font-size: 11px; margin-top: 8px; text-align: center; color: var(--text-muted); max-width: 110px; }
.pipeline-actions { margin-top: 6px; display: flex; gap: 4px; }

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(59,130,246,0.4); }
    50% { box-shadow: 0 0 0 8px rgba(59,130,246,0); }
}

/* Dropzone */
.dropzone {
    border: 2px dashed var(--border); border-radius: 12px; padding: 48px; text-align: center;
    cursor: pointer; transition: all 0.2s;
}
.dropzone:hover, .dropzone.dragover { border-color: var(--primary); background: #f0f0ff; }
.dropzone p { margin-top: 12px; color: var(--text-muted); }

/* Progress Bar */
.progress-container { margin-top: 16px; display: flex; align-items: center; gap: 12px; }
.progress-bar { flex: 1; height: 8px; background: #e2e8f0; border-radius: 4px; overflow: hidden; }
.progress-fill { height: 100%; background: var(--primary); border-radius: 4px; transition: width 0.3s; width: 0%; }
.progress-text { font-size: 13px; font-weight: 600; color: var(--text-muted); min-width: 40px; }

/* Service Card */
.service-card .card-body { text-align: center; }
.service-status { font-size: 18px; font-weight: 600; margin-bottom: 16px; }
.service-status.up { color: var(--success); }
.service-status.down { color: var(--danger); }
.service-actions { display: flex; gap: 8px; justify-content: center; margin-bottom: 12px; }
.service-output { font-family: var(--mono); font-size: 11px; background: #f8fafc; padding: 8px; border-radius: 6px; text-align: left; max-height: 100px; overflow-y: auto; display: none; }

/* Checklist */
.checklist { display: flex; flex-direction: column; gap: 8px; }
.check-item {
    display: flex; align-items: center; gap: 12px; padding: 12px 16px;
    border: 1px solid var(--border); border-radius: 8px; background: #f8fafc;
}
.check-icon { font-size: 18px; }
.check-name { flex: 1; font-weight: 500; font-size: 14px; }
.check-status { font-size: 12px; color: var(--text-muted); }

/* Alerts */
.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 12px; font-size: 13px; }
.alert-error { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }
.alert-success { background: #dcfce7; color: #166534; border: 1px solid #bbf7d0; }
.alert-warning { background: #fef3c7; color: #92400e; border: 1px solid #fde68a; }
.alert-info { background: #dbeafe; color: #1e40af; border: 1px solid #bfdbfe; }

/* Upgrade Controls */
.upgrade-controls { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.log-controls { display: flex; align-items: center; gap: 8px; font-size: 13px; }

/* Pagination */
.pagination { display: flex; justify-content: center; gap: 8px; margin-top: 16px; }
.pagination button { padding: 6px 12px; border: 1px solid var(--border); border-radius: 6px; background: #fff; cursor: pointer; font-size: 13px; }
.pagination button.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.pagination button:hover:not(.active) { background: #f1f5f9; }

/* Login Page */
.login-body { background: var(--sidebar-bg); display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-container { width: 100%; max-width: 400px; padding: 20px; }
.login-card { background: var(--card-bg); border-radius: 16px; padding: 40px; box-shadow: 0 25px 50px rgba(0,0,0,0.25); }
.login-header { text-align: center; margin-bottom: 32px; }
.login-header h1 { font-size: 20px; margin-top: 16px; }
.login-header p { color: var(--text-muted); font-size: 14px; margin-top: 4px; }

/* Notification Toast */
.toast-container { position: fixed; top: 20px; right: 20px; z-index: 9999; display: flex; flex-direction: column; gap: 8px; }
.toast {
    padding: 12px 20px; border-radius: 8px; color: #fff; font-size: 13px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15); animation: slideIn 0.3s ease;
    max-width: 400px;
}
.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }
.toast.info { background: var(--info); }
.toast.warning { background: var(--warning); }

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* Text colors */
.text-success { color: var(--success) !important; }
.text-danger { color: var(--danger) !important; }
.text-warning { color: var(--warning) !important; }
.text-info { color: var(--info) !important; }
.text-muted { color: var(--text-muted) !important; }

/* Issue resolution */
.issue-card { padding: 12px; border: 1px solid var(--border); border-radius: 8px; margin-bottom: 8px; }
.issue-card .issue-title { font-weight: 600; font-size: 14px; }
.issue-card .issue-detail { font-size: 12px; color: var(--text-muted); margin-top: 4px; }
.issue-card textarea { width: 100%; margin-top: 8px; padding: 8px; border: 1px solid var(--border); border-radius: 6px; font-size: 12px; resize: vertical; min-height: 60px; }

/* Patch Recommendations */
.recommendation-item {
    padding: 16px; border: 1px solid var(--border); border-radius: 10px;
    margin-bottom: 12px; background: #fff; transition: border-color 0.2s;
}
.recommendation-item.severity-high { border-left: 4px solid var(--danger); }
.recommendation-item.severity-medium { border-left: 4px solid var(--warning); }
.recommendation-item.severity-low { border-left: 4px solid var(--info); }
.rec-header { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
.rec-title { display: flex; align-items: center; gap: 6px; font-size: 15px; }
.rec-severity { font-size: 18px; }
.rec-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.rec-versions {
    display: flex; align-items: center; gap: 12px; margin-top: 10px;
    font-size: 14px; padding: 8px 12px; background: #f8fafc; border-radius: 6px;
}
.rec-arrow { color: var(--text-muted); font-size: 18px; }
.rec-steps { margin-top: 10px; }
.rec-steps-title { font-size: 12px; font-weight: 600; color: var(--text-muted); margin-bottom: 4px; }
.rec-steps-list { margin: 0; padding-left: 20px; font-size: 13px; color: var(--text); }
.rec-steps-list li { padding: 2px 0; }
.rec-notes { margin-top: 8px; font-size: 12px; }

/* Version card update indicators */
.latest-version { margin-top: 12px; }
.update-available {
    background: linear-gradient(135deg, #fef3c7, #fde68a); padding: 8px 12px;
    border-radius: 8px; text-align: center;
}
.update-badge {
    display: inline-block; background: var(--warning); color: #fff; padding: 2px 10px;
    border-radius: 12px; font-size: 11px; font-weight: 600; text-transform: uppercase;
    letter-spacing: 0.5px;
}
.update-version { font-size: 12px; color: #92400e; margin-top: 4px; font-weight: 500; }
.up-to-date {
    background: #dcfce7; padding: 6px 12px; border-radius: 8px; text-align: center;
}
.current-badge {
    display: inline-block; background: var(--success); color: #fff; padding: 2px 10px;
    border-radius: 12px; font-size: 11px; font-weight: 600; text-transform: uppercase;
    letter-spacing: 0.5px;
}
.version-card.has-update { border-color: var(--warning); box-shadow: 0 0 0 1px var(--warning); }

/* Responsive */
@media (max-width: 768px) {
    .sidebar { width: 60px; }
    .sidebar .nav-item span, .sidebar-header span, .sidebar-footer span { display: none; }
    .content { margin-left: 60px; }
    .page-content { padding: 16px; }
    .grid-3 { grid-template-columns: 1fr; }
}