:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --bg-gradient: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    --card-bg: rgba(255, 255, 255, 0.8);
    --text-main: #1e293b;
    --text-muted: #64748b;
    --accent: #10b981;
    --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --radius: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Outfit', 'Noto Sans SC', sans-serif;
    background: var(--bg-gradient);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    padding: 40px 20px;
    line-height: 1.6;
}

.app-container {
    width: 100%;
    max-width: 800px;
    animation: fadeIn 0.8s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

header {
    text-align: center;
    margin-bottom: 40px;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 8px;
}

.logo-icon {
    font-size: 2.5rem;
}

header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(to right, #2563eb, #7c3aed);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    color: var(--text-muted);
    font-size: 1.1rem;
    letter-spacing: 2px;
}

/* Tabs */
.tabs {
    display: flex;
    background: rgba(255, 255, 255, 0.5);
    padding: 6px;
    border-radius: var(--radius);
    margin-bottom: 30px;
    position: relative;
    backdrop-filter: blur(8px);
}

.tab-btn {
    flex: 1;
    border: none;
    background: transparent;
    padding: 12px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    z-index: 1;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.tab-btn.active {
    color: white;
}

.tab-indicator {
    position: absolute;
    height: calc(100% - 12px);
    width: calc(50% - 6px);
    background: var(--primary-color);
    border-radius: 12px;
    top: 6px;
    left: 6px;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.tabs[data-active="store"] .tab-indicator {
    transform: translateX(100%);
}

/* Search Box */
.search-section {
    margin-bottom: 30px;
}

.search-box {
    display: flex;
    gap: 12px;
    background: var(--card-bg);
    padding: 12px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.5);
}

#search-input {
    flex: 1;
    border: none;
    background: transparent;
    padding: 12px 16px;
    font-size: 1.1rem;
    outline: none;
    color: var(--text-main);
}

#search-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 0 30px;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

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

.search-info {
    text-align: center;
    margin-top: 12px;
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Results */
.results-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.result-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(255, 255, 255, 0.5);
    transition: var(--transition);
    animation: slideIn 0.5s ease-out;
}

.result-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

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

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 16px;
}

.store-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

.tag {
    background: #eff6ff;
    color: #1e40af;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.info-row {
    margin-bottom: 8px;
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 0.95rem;
}

.info-label {
    font-weight: 600;
    color: var(--text-muted);
    min-width: 80px;
}

.info-value {
    color: var(--text-main);
}

.config-highlight {
    background: #f1f5f9;
    padding: 12px;
    border-radius: 12px;
    margin-top: 12px;
    font-family: inherit;
    font-size: 0.95rem;
}

.package-item {
    border-left: 4px solid var(--accent);
    padding-left: 12px;
    margin-top: 16px;
}

.package-num {
    color: var(--accent);
    font-weight: 700;
    font-size: 1.1rem;
}

.empty-state {
    text-align: center;
    padding: 60px;
    color: var(--text-muted);
}

.empty-icon {
    font-size: 3rem;
    margin-bottom: 16px;
    opacity: 0.5;
}

footer {
    text-align: center;
    margin-top: 60px;
    padding-bottom: 20px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Responsive */
@media (max-width: 600px) {
    .search-box {
        flex-direction: column;
    }
    #search-btn {
        padding: 12px;
    }
    .logo h1 {
        font-size: 1.8rem;
    }
}