@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;600;700&display=swap');

:root {
    --primary: #0a192f;
    --primary-light: #112240;
    --secondary: #233554;
    --accent: #64ffda;
    --text-main: #e6f1ff;
    --text-muted: #8892b0;
    --white: #ffffff;
    --bg-light: #f8faff;
    --bg-dark: #0a192f;
    --card-bg: #ffffff;
    --border-color: #e2e8f0;
    --shadow: 0 10px 30px -15px rgba(2, 12, 27, 0.7);
    --transition: all 0.25s cubic-bezier(0.645, 0.045, 0.355, 1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-light);
    color: var(--primary);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
}

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

/* Header & Sidebar */
header {
    background-color: var(--white);
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: 'Outfit', sans-serif;
    font-size: 1.5rem;
    color: var(--primary);
    text-decoration: none;
    font-weight: 700;
}

.logo img {
    height: 40px;
    width: 40px; /* Ensure square for favicon */
    object-fit: contain;
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--primary);
    font-weight: 500;
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--accent);
    transform: translateY(-2px);
}

/* Glassmorphism Cards */
.card {
    background: var(--white);
    border-radius: 16px;
    padding: 2rem;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    gap: 8px;
}

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

.btn-primary:hover {
    background-color: var(--primary-light);
    transform: scale(1.05);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}

.btn-outline:hover, .category-btn.active {
    background-color: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.qr-card {
    display: flex;
    flex-direction: column;
}

.archive-qr, #qr-canvas {
    image-rendering: -moz-crisp-edges;
    image-rendering: pixelated;
    max-width: 100% !important;
    width: auto !important;
    height: auto !important;
    display: block;
    margin: 0 auto;
}

#qr-preview-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--bg-light);
    border-radius: 12px;
    padding: 2.5rem;
    min-height: 350px;
    border: 2px dashed var(--border-color);
}

#qr-no-data {
    margin-top: 1rem;
    font-weight: 500;
}

/* Popup / Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 25, 47, 0.85);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    backdrop-filter: blur(5px);
}

.modal {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 20px;
    width: 90%;
    max-width: 500px;
    text-align: center;
}

.modal h2 {
    margin-bottom: 1.5rem;
}

.modal input {
    width: 100%;
    padding: 1rem;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1.1rem;
    text-align: center;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--primary);
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
}

/* Grid System */
.grid {
    display: grid;
    gap: 2rem;
}

.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }

@media (max-width: 768px) {
    .grid-cols-2, .grid-cols-3 { grid-template-columns: 1fr; }
}

/* Categories & Badges */
.badge {
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
}

.badge-blue { background: #e0f2fe; color: #0369a1; }
.badge-green { background: #dcfce7; color: #15803d; }

/* QR Preview Panel */
#qr-preview-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--bg-light);
    border-radius: 12px;
    padding: 2rem;
    min-height: 300px;
}

#qr-result svg, #qr-result canvas {
    max-width: 100%;
    height: auto;
}