:root {
    --bg-dark: #f1f5f9;
    --panel-bg: #ffffff;
    --panel-border: #e2e8f0;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --accent-blue: #0ea5e9;
    --accent-purple: #8b5cf6;
    --success: #10b981;
    --error: #ef4444;
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}



/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

header {
    text-align: center;
    margin-bottom: 3rem;
    margin-top: 2rem;
}

.logo-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.sf-logo {
    font-size: 2.5rem;
    color: var(--accent-blue);
}

header h1 {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(to right, var(--text-primary), var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.dashboard-grid {
    display: flex;
    justify-content: center;
    max-width: 600px;
    margin: 0 auto;
}

/* Panels */
.glass-panel {
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    border-radius: 24px;
    padding: 2rem;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
    width: 100%;
}

.panel-header {
    margin-bottom: 1.5rem;
}

.panel-header h2 {
    font-size: 1.2rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Upload Zone */
.upload-zone {
    border: 2px dashed rgba(148, 163, 184, 0.3);
    border-radius: 16px;
    padding: 3rem 1rem;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    background: rgba(15, 23, 42, 0.3);
}

.upload-zone:hover, .upload-zone.drag-active {
    border-color: var(--accent-blue);
    background: rgba(14, 165, 233, 0.05);
}

.file-icon {
    font-size: 3rem;
    color: var(--accent-purple);
    margin-bottom: 1rem;
}

.upload-content h3 {
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.upload-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    color: white;
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -10px var(--accent-purple);
}

/* Status Toast */
.status-toast {
    margin-top: 1.5rem;
    padding: 1rem;
    border-radius: 8px;
    background: #f8fafc;
    border: 1px solid var(--panel-border);
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.95rem;
    font-weight: 500;
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s ease;
}

.status-toast.visible {
    opacity: 1;
    transform: translateY(0);
}

.spinner {
    width: 20px;
    height: 20px;
    border: 3px solid rgba(0,0,0,0.1);
    border-top-color: var(--accent-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    display: none;
}

@keyframes spin { 100% { transform: rotate(360deg); } }

/* Progress Bar */
.progress-container {
    margin-top: 1.5rem;
    background: #f8fafc;
    border: 1px solid var(--panel-border);
    padding: 1rem;
    border-radius: 8px;
}

.progress-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    font-weight: 600;
}

.progress-bar-bg {
    width: 100%;
    height: 8px;
    background: #e2e8f0;
    border-radius: 4px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    width: 0%;
    transition: width 0.3s ease;
}

/* Summary Card */
.summary-card {
    margin-top: 1.5rem;
    background: #f8fafc;
    border: 1px solid var(--panel-border);
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
    animation: fadeIn 0.5s ease;
}

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

.summary-card h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.summary-metrics {
    display: flex;
    justify-content: space-around;
    margin-bottom: 1.5rem;
}

.metric {
    display: flex;
    flex-direction: column;
}

.metric-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-primary);
}

.metric-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.success-metric .metric-value { color: var(--success); }
.error-metric .metric-value { color: var(--error); }

.error-btn {
    background: var(--error);
    width: 100%;
}
.error-btn:hover {
    box-shadow: 0 10px 20px -10px var(--error);
}