/* Modern SaaS Dashboard Aesthetic */
:root {
    /* Color Palette */
    --bg-main: #0B0F19; /* Very dark blue, almost black */
    --bg-surface: #151A25; /* Slightly lighter surface */
    --bg-card: #1A2235; /* Card background */
    
    --primary: #6366F1; /* Indigo */
    --primary-hover: #4F46E5;
    
    --text-primary: #F8FAFC;
    --text-secondary: #94A3B8;
    
    --border: #2E3A52;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.5), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    
    /* Semantic Colors */
    --success: #10B981;
    --warning: #F59E0B;
    --danger: #EF4444;
    --info: #3B82F6;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    
    /* Animation */
    --transition: all 0.2s ease-in-out;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    display: flex;
    min-height: 100vh;
}

/* Typography */
h1 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: #fff;
    letter-spacing: -0.025em;
}

h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #F8FAFC;
}

h3 {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin: 1.5rem 0 0.5rem;
}

p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

/* Sidebar Navigation */
.sidebar {
    width: 260px;
    background-color: var(--bg-surface);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 10;
}

.logo-container {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
}

.logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo::before {
    content: "🛡️";
    font-size: 1.5rem;
}

.nav-links {
    padding: 1rem 0;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.75rem 1.5rem;
    font-weight: 500;
    transition: var(--transition);
    border-left: 3px solid transparent;
}

.nav-links a:hover {
    color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.03);
}

.nav-links a.active {
    color: var(--primary);
    background-color: rgba(99, 102, 241, 0.1);
    border-left-color: var(--primary);
}

/* Main Content Area */
.main-content {
    flex: 1;
    margin-left: 260px;
    padding: 2.5rem;
    max-width: 1200px;
}

/* Views */
.view {
    display: none;
    animation: fadeIn 0.3s ease-in-out;
}

.view.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Cards */
.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow);
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.875rem;
}

input, textarea, select {
    width: 100%;
    padding: 0.75rem 1rem;
    background-color: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.875rem;
    transition: var(--transition);
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

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

.btn.primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
}

.btn.secondary {
    background-color: var(--bg-surface);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn.secondary:hover {
    background-color: #1f2937;
    border-color: #374151;
}

.btn.danger {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.header-action {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.25rem 0.6rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 9999px;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.badge.neutral { background-color: rgba(148, 163, 184, 0.1); color: var(--text-secondary); border: 1px solid rgba(148, 163, 184, 0.2); }
.badge.success { background-color: rgba(16, 185, 129, 0.1); color: var(--success); border: 1px solid rgba(16, 185, 129, 0.2); }
.badge.warning { background-color: rgba(245, 158, 11, 0.1); color: var(--warning); border: 1px solid rgba(245, 158, 11, 0.2); }
.badge.danger { background-color: rgba(239, 68, 68, 0.1); color: var(--danger); border: 1px solid rgba(239, 68, 68, 0.2); }
.badge.info { background-color: rgba(59, 130, 246, 0.1); color: var(--info); border: 1px solid rgba(59, 130, 246, 0.2); }
.badge.review { background-color: rgba(239, 68, 68, 0.2); color: #FCA5A5; border: 1px solid var(--danger); animation: pulse 2s infinite; }

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.4); }
    70% { box-shadow: 0 0 0 6px rgba(239, 68, 68, 0); }
    100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
}

/* Dashboard Table */
.table-container {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 1rem 1.5rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

th {
    background-color: rgba(0,0,0,0.2);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-secondary);
    letter-spacing: 0.05em;
}

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

tbody tr {
    transition: var(--transition);
    cursor: pointer;
}

tbody tr:hover {
    background-color: rgba(255,255,255,0.02);
}

.table-link {
    color: var(--text-primary);
    font-weight: 500;
}

/* Lists */
ul {
    list-style-position: inside;
    color: var(--text-secondary);
    padding-left: 0.5rem;
}

ul li {
    margin-bottom: 0.25rem;
}

/* Grid Layouts */
.memory-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.analysis-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

/* Scope Diff Specifics */
.diff-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border);
}

.diff-section {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    border: 1px solid var(--border);
}

.diff-section h3 { margin-top: 0; }

.added-section { background-color: rgba(245, 158, 11, 0.05); border-color: rgba(245, 158, 11, 0.2); }
.added-section h3 { color: var(--warning); }
.changed-section { background-color: rgba(59, 130, 246, 0.05); border-color: rgba(59, 130, 246, 0.2); }
.changed-section h3 { color: var(--info); }
.conflicting-section { background-color: rgba(239, 68, 68, 0.05); border-color: rgba(239, 68, 68, 0.2); }
.conflicting-section h3 { color: var(--danger); }
.unchanged-section { opacity: 0.7; }

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: rgba(11, 15, 25, 0.8);
    backdrop-filter: blur(4px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(99, 102, 241, 0.3);
    border-radius: 50%;
    border-top-color: var(--primary);
    animation: spin 1s ease-in-out infinite;
    margin-bottom: 1rem;
}

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

.hidden {
    display: none !important;
}

/* Utilities */
.mt-2 { margin-top: 1rem; }
.mt-4 { margin-top: 2rem; }
.mb-2 { margin-bottom: 1rem; }
.text-small { font-size: 0.75rem; }

/* Response Draft textarea requires review styling */
textarea.requires-review {
    border-color: var(--danger);
    background-color: rgba(239, 68, 68, 0.02);
}

.error-toast {
    position: fixed;
    top: 20px;
    right: 20px;
    background-color: var(--danger-color, #ef4444);
    color: white;
    padding: 1rem;
    border-radius: 4px;
    font-weight: 600;
    z-index: 1000;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: opacity 0.3s ease;
}
.error-toast.fade-out {
    opacity: 0;
}