:root {
    --primary: #007AFF;
    --bg-color: #f5f5f7;
    --card-bg: rgba(255, 255, 255, 0.85);
    --border-color: rgba(255, 255, 255, 0.4);
    --text-color: #1d1d1f;
    --secondary-text: #86868b;
    --input-bg: #fbfbfd;
}

body {
    margin: 0;
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.app-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px 15px;
}

/* Bubble Background */
.bubble-bg {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}
.bubble {
    position: absolute;
    border-radius: 50%;
    background: rgba(0, 122, 255, 0.08);
    animation: float 15s infinite ease-in-out alternate;
    filter: blur(40px);
}
.bubble-1 { width: 400px; height: 400px; top: -100px; left: -100px; }
.bubble-2 { width: 500px; height: 500px; bottom: -150px; right: -100px; animation-delay: -2s; background: rgba(52, 199, 89, 0.08); }
.bubble-3 { width: 300px; height: 300px; bottom: 20%; left: 20%; animation-delay: -5s; background: rgba(255, 59, 48, 0.05); }

@keyframes float {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(50px, -50px) scale(1.1); }
}

.main-container {
    width: 100%;
    max-width: 1000px;
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 40px 30px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    margin-bottom: 40px;
}

.page-title {
    font-size: 2.2rem;
    font-weight: 900;
    letter-spacing: -1px;
    margin: 0 0 10px 0;
    text-align: center;
}

.page-subtitle {
    text-align: center;
    color: var(--secondary-text);
    margin-bottom: 30px;
    font-weight: 500;
}

.split-layout {
    display: flex;
    gap: 40px;
}

.form-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.preview-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.input-group {
    display: flex;
    flex-direction: column;
    width: 100%;
}

.input-group label {
    font-size: 0.75rem;
    font-weight: 800;
    color: var(--secondary-text);
    text-transform: uppercase;
    margin-bottom: 8px;
    margin-left: 5px;
}

.input-group input {
    padding: 14px 16px;
    border-radius: 16px;
    border: 1.5px solid #e5e5ea;
    background: var(--input-bg);
    font-size: 0.95rem;
    font-weight: 600;
    outline: none;
    transition: 0.2s border-color;
    font-family: inherit;
}

.input-group input:focus {
    border-color: var(--primary);
    background: #fff;
}

.file-input {
    padding: 10px !important;
}

.input-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.divider {
    border: 0;
    border-top: 1px solid #e5e5ea;
    margin: 5px 0;
}

/* Card Preview Styles */
.card-preview {
    width: 100%;
    max-width: 400px;
    background: linear-gradient(135deg, #1c1c1e 0%, #2c2c2e 100%);
    border-radius: 20px;
    padding: 25px;
    color: #fff;
    box-shadow: 0 15px 35px rgba(0,0,0,0.15);
    margin-bottom: 30px;
}

.card-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 25px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: 20px;
}

.card-photo {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.card-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.photo-placeholder {
    font-size: 0.65rem;
    font-weight: 700;
    color: rgba(255,255,255,0.5);
    text-transform: uppercase;
}

.card-title h2 {
    margin: 0;
    font-size: 1.3rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.card-title p {
    margin: 5px 0 0 0;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.7);
    font-weight: 500;
}

.detail-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.detail-row .icon {
    font-size: 1rem;
    opacity: 0.8;
}

.detail-row .text {
    font-size: 0.85rem;
    font-weight: 500;
    opacity: 0.9;
    word-break: break-all;
}

/* QR Code Section */
.qr-container {
    text-align: center;
    margin-bottom: 25px;
}

.qr-container h3 {
    font-size: 0.9rem;
    font-weight: 800;
    color: var(--secondary-text);
    text-transform: uppercase;
    margin-top: 0;
    margin-bottom: 15px;
}

#qrcode {
    background: #fff;
    padding: 15px;
    border-radius: 16px;
    display: inline-block;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.qr-hint {
    font-size: 0.75rem;
    color: var(--secondary-text);
    margin-top: 10px;
    font-weight: 500;
}

.btn-download {
    width: 100%;
    max-width: 400px;
    padding: 16px;
    border-radius: 50px;
    border: none;
    background: var(--primary);
    color: #fff;
    font-size: 1rem;
    font-weight: 800;
    cursor: pointer;
    transition: transform 0.2s, background-color 0.2s;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-download:hover {
    background: #0062cc;
    transform: translateY(-2px);
}

/* Info container styling */
.info-container {
    width: 100%;
    max-width: 1000px;
    background: #fff;
    border-radius: 24px;
    padding: 40px 30px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
    margin-bottom: 40px;
    text-align: left;
}

.info-container h2 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    margin-top: 0;
    margin-bottom: 15px;
    border-bottom: 2px solid #f2f2f7;
    padding-bottom: 10px;
}

.info-container ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
}

.info-container li {
    margin-bottom: 15px;
    font-size: 1.05rem;
    line-height: 1.6;
    color: #444;
    position: relative;
    padding-left: 25px;
}

.info-container li::before {
    content: '★';
    position: absolute;
    left: 0;
    color: var(--primary);
}

@media (max-width: 800px) {
    .split-layout {
        flex-direction: column;
    }
    
    .input-grid {
        grid-template-columns: 1fr;
    }
    
    .main-container {
        padding: 30px 20px;
    }
}