:root {
    --bg-dark: #0f172a;
    --bg-panel: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --primary-color: #3b82f6;
    --primary-hover: #2563eb;
    --accent-color: #8b5cf6;
    --success-color: #10b981;
    --danger-color: #ef4444;
}

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

body {
    font-family: 'Outfit', 'Noto Sans JP', sans-serif;
    background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);
    color: var(--text-main);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Glassmorphism Utilities */
.glass-panel {
    background: var(--bg-panel);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

/* Layout */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 250px;
    padding: 2rem 1rem;
    display: flex;
    flex-direction: column;
    margin: 1rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 3rem;
    padding-left: 1rem;
}

.logo h2 {
    font-weight: 800;
    letter-spacing: 1px;
    background: linear-gradient(to right, #60a5fa, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.badge {
    background: var(--accent-color);
    font-size: 0.7rem;
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: bold;
}

.nav-menu {
    list-style: none;
}

.nav-menu li {
    padding: 1rem;
    margin-bottom: 0.5rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--text-muted);
}

.nav-menu li:hover {
    background: rgba(255,255,255,0.05);
    color: var(--text-main);
}

.nav-menu li.active {
    background: linear-gradient(90deg, rgba(59,130,246,0.2) 0%, transparent 100%);
    border-left: 4px solid var(--primary-color);
    color: var(--text-main);
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 1rem 2rem 1rem 0;
    display: flex;
    flex-direction: column;
}

.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    margin-bottom: 2rem;
}

.top-bar h1 {
    font-size: 1.5rem;
    font-weight: 600;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.status-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}
.status-indicator.online { background-color: var(--success-color); box-shadow: 0 0 8px var(--success-color); }

/* Views */
.view-section {
    display: none;
    animation: fadeIn 0.4s ease;
}

.view-section.active {
    display: block;
}

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

/* Upload Area */
.upload-area {
    padding: 4rem 2rem;
    text-align: center;
    border: 2px dashed rgba(255,255,255,0.2);
    cursor: pointer;
    transition: all 0.3s ease;
}

.upload-area:hover, .upload-area.dragover {
    border-color: var(--primary-color);
    background: rgba(59,130,246,0.05);
}

.upload-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

/* Loading Spinner */
.loading-overlay {
    text-align: center;
    padding: 3rem;
}
.spinner {
    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: 0 auto 1rem;
}
@keyframes spin { 100% { transform: rotate(360deg); } }

/* Results Grid */
.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.result-card {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.card-header {
    background: rgba(0,0,0,0.2);
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--glass-border);
}

.vendor-name { font-size: 1.1rem; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;}
.amount-badge { background: var(--primary-color); padding: 0.3rem 0.8rem; border-radius: 20px; font-weight: 800; }

.card-body { padding: 1.5rem; flex: 1; }
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; font-size: 0.85rem; color: var(--text-muted); margin-bottom: 0.4rem; }
.form-group input, .form-group select {
    width: 100%;
    padding: 0.6rem;
    background: rgba(0,0,0,0.3);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 6px;
    color: white;
    font-family: inherit;
}
.form-group input:focus, .form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.card-footer { padding: 1rem 1.5rem; text-align: right; border-top: 1px solid var(--glass-border); }

/* Buttons */
.btn-primary, .btn-secondary {
    padding: 0.6rem 1.5rem;
    border: none;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}
.btn-primary { background: var(--primary-color); color: white; }
.btn-primary:hover { background: var(--primary-hover); transform: translateY(-2px); }
.btn-secondary { background: rgba(255,255,255,0.1); color: white; }
.btn-secondary:hover { background: rgba(255,255,255,0.2); }

/* Table */
.search-bar { display: flex; gap: 1rem; padding: 1.5rem; border-bottom: 1px solid var(--glass-border); }
.search-bar input { background: rgba(0,0,0,0.3); border: 1px solid rgba(255,255,255,0.1); padding: 0.5rem; color: white; border-radius: 4px;}
.table-container { padding: 1.5rem; overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; }
.data-table th, .data-table td { padding: 1rem; text-align: left; border-bottom: 1px solid rgba(255,255,255,0.05); }
.data-table th { color: var(--text-muted); font-weight: 500; }
.data-table tbody tr:hover { background: rgba(255,255,255,0.02); }

.hidden { display: none !important; }