:root {
    --bg-color: #0f172a;
    --sidebar-bg: rgba(30, 41, 59, 0.7);
    --glass-border: 1px solid rgba(255, 255, 255, 0.1);
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --card-bg: rgba(30, 41, 59, 0.4);
    --success: #10b981;
    --warning: #f59e0b;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    background-image:
        radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(16, 185, 129, 0.15) 0px, transparent 50%);
    color: var(--text-main);
    height: 100vh;
    overflow: hidden;
}

.app-container {
    display: flex;
    height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 320px;
    background: var(--sidebar-bg);
    backdrop-filter: blur(12px);
    border-right: var(--glass-border);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-main);
}

.brand i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.brand h1 {
    font-size: 1.25rem;
    font-weight: 700;
}

.control-group h3 {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
}

/* Upload Zone */
.upload-zone {
    border: 2px dashed rgba(255, 255, 255, 0.1);
    border-radius: 0.75rem;
    padding: 2rem 1rem;
    text-align: center;
    transition: all 0.2s;
    background: rgba(255, 255, 255, 0.02);
}

.upload-zone.dragover {
    border-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.1);
}

.upload-zone i {
    font-size: 2rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.upload-zone p {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

/* Inputs */
textarea {
    width: 100%;
    height: 120px;
    background: rgba(0, 0, 0, 0.2);
    border: var(--glass-border);
    border-radius: 0.5rem;
    padding: 0.75rem;
    color: var(--text-main);
    font-family: inherit;
    resize: none;
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Buttons */
.btn {
    width: 100%;
    padding: 0.75rem;
    border-radius: 0.5rem;
    border: none;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

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

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

.btn.secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-main);
    font-size: 0.8rem;
    padding: 0.5rem;
    width: auto;
    margin: 0 auto;
}

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

/* Status */
.status-indicator {
    margin-top: auto;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    padding-top: 1rem;
    border-top: var(--glass-border);
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--text-muted);
}

.dot.running {
    background-color: var(--warning);
    box-shadow: 0 0 8px var(--warning);
    animation: pulse 1s infinite;
}

.dot.done {
    background-color: var(--success);
}

@keyframes pulse {
    0% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }

    100% {
        opacity: 1;
    }
}

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 1.5rem;
    gap: 1rem;
    overflow: hidden;
    min-height: 0;
    /* Crucial for nested flex scroll */
}

/* View Section needs to fill space for analysis view */
.view-section {
    flex: 1;
    display: none;
    overflow: hidden;
    min-height: 0;
}

.view-section.active {
    display: flex;
    /* Changed from block to flex for analysis view layout */
    flex-direction: column;
}

.tabs {
    flex-shrink: 0;
    /* Prevent tabs from shrinking */
    display: flex;
    gap: 1rem;
    border-bottom: var(--glass-border);
    padding-bottom: 0.5rem;
}

/* ... existing tab-btn styles ... */

.tab-content {
    display: none;
    flex: 1;
    overflow: hidden;
    min-height: 0;
    /* Crucial for nested flex scroll */
    animation: fadeIn 0.3s ease;
}

.tab-content.active {
    display: flex;
    flex-direction: column;
}

/* Logs */
.terminal-window {
    background: #000;
    border-radius: 0.75rem;
    padding: 1rem;
    flex: 1;
    overflow-y: auto;
    min-height: 0;
    /* Crucial for nested flex scroll */
    border: var(--glass-border);
    font-family: 'JetBrains Mono', 'Menlo', monospace;
    font-size: 0.85rem;
    color: #4ade80;
    line-height: 1.5;
}

#logOutput {
    white-space: pre-wrap;
}

/* Report */
#reportContainer {
    flex: 1;
    overflow-y: auto;
    background: white;
    color: #1e293b;
    border-radius: 0.75rem;
    padding: 2rem;
}

.empty-state {
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #94a3b8;
    gap: 1rem;
}

.empty-state i {
    font-size: 3rem;
    opacity: 0.5;
}

/* Markdown Styles Override for Report */
.markdown-body img {
    max-width: 100%;
    border-radius: 0.5rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    margin: 1rem 0;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3 {
    margin-top: 1.5em;
    margin-bottom: 0.5em;
    color: #111827;
}

.markdown-body p {
    margin-bottom: 1em;
    line-height: 1.7;
}

/* New: Tools Grid */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    padding: 1rem 0;
    overflow-y: auto;
}

.tool-card {
    background: var(--card-bg);
    border: var(--glass-border);
    border-radius: 1rem;
    padding: 1.5rem;
    transition: transform 0.2s;
}

.tool-card:hover {
    transform: translateY(-2px);
    border-color: var(--primary-color);
}

.tool-icon {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.tool-card h3 {
    margin-bottom: 0.5rem;
}

.tool-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    min-height: 3em;
}

.tool-actions {
    display: flex;
    gap: 0.5rem;
}

.input-sm {
    background: rgba(0, 0, 0, 0.3);
    border: var(--glass-border);
    color: white;
    padding: 0.5rem;
    border-radius: 0.5rem;
    flex: 1;
}

/* Help Styles */
.help-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.help-body {
    background: white;
    color: #1e293b;
    padding: 2rem;
    border-radius: 0.75rem;
    overflow-y: auto;
    flex: 1;
}