:root {
    --bg-color: #0f172a;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --glass-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --primary-color: #3b82f6;
    --primary-hover: #2563eb;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --card-hover: rgba(255, 255, 255, 0.05);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Background Blobs for Modern Aesthetic */
.background-blobs {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.5;
}

.blob-1 {
    top: -10%;
    left: -10%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, #3b82f6 0%, rgba(59, 130, 246, 0) 70%);
    animation: float 15s ease-in-out infinite alternate;
}

.blob-2 {
    bottom: -10%;
    right: -10%;
    width: 40vw;
    height: 40vw;
    background: radial-gradient(circle, #8b5cf6 0%, rgba(139, 92, 246, 0) 70%);
    animation: float 20s ease-in-out infinite alternate-reverse;
}

@keyframes float {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 2rem;
}

/* Glassmorphism Classes */
.glass-header {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

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

.logo i {
    font-size: 2.5rem;
    color: var(--primary-color);
}

.logo h1 {
    font-weight: 700;
    font-size: 2rem;
    letter-spacing: -0.5px;
}

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

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    padding: 2rem;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

/* Upload Area */
.upload-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.drag-drop-zone {
    width: 100%;
    border: 2px dashed var(--text-secondary);
    border-radius: 12px;
    padding: 3rem 2rem;
    text-align: center;
    transition: all 0.3s ease;
    background: rgba(0, 0, 0, 0.2);
}

.drag-drop-zone.dragover {
    border-color: var(--primary-color);
    background: rgba(59, 130, 246, 0.1);
}

.icon-large {
    font-size: 4rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.drag-drop-zone h2 {
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.drag-drop-zone p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

/* File Info */
.file-info {
    margin-top: 1.5rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.1);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-size: 0.95rem;
}

.clear-file {
    cursor: pointer;
    color: var(--danger);
    margin-left: 0.5rem;
    transition: color 0.2s;
}
.clear-file:hover { color: #f87171; }

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
}

.btn-action {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    color: white;
    font-size: 1.1rem;
    padding: 1rem 2rem;
    width: 100%;
    margin-top: 1rem;
}
.btn-action:hover {
    box-shadow: 0 0 15px rgba(59, 130, 246, 0.5);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--text-secondary);
    color: var(--text-primary);
}
.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
}

/* Loading */
.loading-area {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.loader {
    width: 50px;
    height: 50px;
    border: 5px solid rgba(255,255,255,0.1);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1rem;
}

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

/* Results */
.results-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
    text-align: center;
}

.text-success { color: var(--success); }
.text-danger { color: var(--danger); }

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.client-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    transition: transform 0.2s, background 0.2s;
}

.client-card:hover {
    transform: translateY(-5px);
    background: var(--card-hover);
}

.client-header h3 {
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
    word-break: break-word;
}
.client-header p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.status-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
}
.status-badge.success { background: rgba(16, 185, 129, 0.2); color: var(--success); }
.status-badge.error { background: rgba(239, 68, 68, 0.2); color: var(--danger); }

.action-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: auto;
}

.hidden { display: none !important; }