:root {
    --primary: #4F46E5;
    --primary-hover: #4338ca;
    --bg-color: #f3f4f6;
    --card-bg: #ffffff;
    --text-main: #111827;
    --text-muted: #6b7280;
    --border-color: #e5e7eb;
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Header */
.header {
    background: var(--card-bg);
    padding: 1.5rem 0;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    margin-left: 1rem;
    font-weight: 600;
}

.btn-nav {
    color: var(--text-muted);
}

.btn-nav:hover {
    color: var(--primary);
}

.btn-nav-outline {
    border: 2px solid var(--primary);
    padding: 0.5rem 1.25rem;
    border-radius: 6px;
    color: var(--primary);
    transition: all 0.2s;
}

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

/* Main Content */
.main-content {
    padding: 2rem 0;
    min-height: 80vh;
}

.generator-wrapper {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 2rem;
}

@media (max-width: 768px) {
    .generator-wrapper {
        grid-template-columns: 1fr;
    }
}

/* Input Section */
.input-section {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
}

.tab-btn {
    background: none;
    border: none;
    padding: 0.5rem 1rem;
    cursor: pointer;
    font-weight: 600;
    color: var(--text-muted);
    transition: all 0.3s ease;
    border-radius: 6px;
}

.tab-btn:hover {
    color: var(--primary);
    background: #eef2ff;
}

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

.form-group {
    display: none;
    margin-bottom: 1rem;
    animation: fadeIn 0.3s ease;
}

.form-group.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(5px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.95rem;
}

input[type="text"],
input[type="url"],
input[type="email"],
input[type="tel"],
textarea,
select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.2s;
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

textarea {
    resize: vertical;
    min-height: 100px;
}

.customization-options {
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.btn-generate {
    width: 100%;
    padding: 0.875rem;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    margin-top: 1.5rem;
    transition: background-color 0.2s;
}

.btn-generate:hover {
    background: var(--primary-hover);
}

/* Preview Section */
.preview-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    text-align: center;
    position: sticky;
    top: 2rem;
}

.qr-placeholder {
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f9fafb;
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    color: var(--text-muted);
}

.qr-result img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
    margin-bottom: 1.5rem;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.hidden {
    display: none;
}

.btn-download {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: #10b981;
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: background 0.2s;
}

.btn-download:hover {
    background: #059669;
}

.footer {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Dashboard Styles */
.dashboard-header {
    margin-bottom: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.stats-card {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    margin-bottom: 2rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    display: inline-block;
    min-width: 200px;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
}

.qr-table-container {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    overflow-x: auto;
}

.qr-table {
    width: 100%;
    border-collapse: collapse;
}

.qr-table th,
.qr-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.qr-table th {
    font-weight: 600;
    color: var(--text-muted);
}

.cell-content {
    max-width: 200px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.badge {
    background: #eef2ff;
    color: var(--primary);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
    text-transform: uppercase;
}

.btn-small {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
    border-radius: 4px;
    text-decoration: none;
    border: none;
    cursor: pointer;
}

.btn-download-link {
    background: #10b981;
    color: white;
    margin-right: 0.5rem;
}

.btn-delete {
    background: #ef4444;
    color: white;
}

.alert-success {
    background: #d1fae5;
    color: #065f46;
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
}

.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--text-muted);
}

.btn-primary {
    display: inline-block;
    margin-top: 1rem;
    padding: 0.75rem 1.5rem;
    background: var(--primary);
    color: white;
    text-decoration: none;
    border-radius: 6px;
}