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

body {
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, sans-serif;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    min-height: 100vh;
    color: #f1f5f9;
}

.wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    flex: 1;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.logo {
    font-size: 1.75rem;
    font-weight: 700;
    background: linear-gradient(135deg, #60a5fa, #a78bfa);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.nav-links a {
    color: #cbd5e1;
    text-decoration: none;
    margin-left: 1.5rem;
    font-weight: 500;
    transition: 0.2s;
}

.nav-links a:hover {
    color: #60a5fa;
}

.hero {
    text-align: center;
    margin-bottom: 2rem;
}

.hero h1 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.hero p {
    color: #94a3b8;
}

.input-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #cbd5e1;
}

textarea {
    width: 100%;
    padding: 0.75rem;
    background: #0f172a;
    border: 1px solid #334155;
    border-radius: 12px;
    color: #f1f5f9;
    font-size: 1rem;
    resize: vertical;
}

.settings-panel {
    background: rgba(30, 41, 59, 0.4);
    border-radius: 20px;
    padding: 1.25rem;
    margin-bottom: 1.5rem;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
}

.setting-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: #0f172a;
    padding: 0.5rem 1rem;
    border-radius: 40px;
}

.setting-row label {
    margin: 0;
    font-size: 0.85rem;
}

input[type="color"] {
    width: 40px;
    height: 40px;
    border: 2px solid #334155;
    border-radius: 8px;
    cursor: pointer;
    background: #0f172a;
}

input[type="number"] {
    width: 90px;
    background: #0f172a;
    border: 1px solid #334155;
    color: white;
    padding: 0.4rem;
    border-radius: 8px;
}

input[type="file"] {
    font-size: 0.8rem;
    color: #94a3b8;
}

.generate-btn {
    width: 100%;
    background: linear-gradient(135deg, #60a5fa, #a78bfa);
    border: none;
    padding: 1rem;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    color: white;
    cursor: pointer;
    transition: 0.2s;
    margin-bottom: 2rem;
}

.generate-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px -5px rgba(96, 165, 250, 0.4);
}

.qr-container {
    display: flex;
    justify-content: center;
    margin-bottom: 2rem;
}

.qr-card {
    background: white;
    padding: 1.5rem;
    border-radius: 24px;
    text-align: center;
    box-shadow: 0 20px 35px -10px rgba(0,0,0,0.3);
}

.download-btn {
    display: block;
    margin-left: auto;
    margin-right: auto;
    margin-top: 1rem;
    background: #2dd4bf;
    color: #0f172a;
    border: none;
    padding: 0.5rem 1.5rem;
    border-radius: 40px;
    font-weight: bold;
    cursor: pointer;
    transition: 0.2s;
}

.download-btn:hover {
    background: #14b8a6;
    transform: scale(1.02);
}

.tips {
    background: rgba(30, 41, 59, 0.4);
    border-radius: 20px;
    padding: 1rem 1.5rem;
    font-size: 0.85rem;
}

.tips h3 {
    margin-bottom: 0.5rem;
}

.tips ul {
    margin-left: 1.5rem;
    color: #94a3b8;
}

.tips code {
    background: #0f172a;
    padding: 0.1rem 0.3rem;
    border-radius: 6px;
    font-size: 0.75rem;
}

.footer {
    text-align: center;
    padding: 1rem;
    font-size: 0.7rem;
    color: #475569;
    border-top: 1px solid rgba(255,255,255,0.05);
}

.footer a {
    color: #94a3b8;
    text-decoration: none;
    transition: 0.2s;
}

.footer a:hover {
    color: #60a5fa;
    text-decoration: underline;
}

@media (max-width: 640px) {
    .settings-panel {
        flex-direction: column;
        align-items: stretch;
    }
    .setting-row {
        justify-content: space-between;
    }
    .nav-links a {
        margin-left: 1rem;
    }
}

.container h1 {
    font-size: 2rem;
    margin-bottom: 1rem;
    font-weight: 700;
    color: #f1f5f9;
}

.container h2 {
    font-size: 1.5rem;
    margin: 1.5rem 0 0.75rem 0;
    font-weight: 600;
    color: #cbd5e1;
}

.container p {
    margin-bottom: 1rem;
    line-height: 1.6;
    color: #cbd5e1;
}

.container ul, .container ol {
    margin: 0.75rem 0 1rem 2rem;
    color: #cbd5e1;
    line-height: 1.6;
}

.container li {
    margin-bottom: 0.5rem;
}

.container a:not(.nav-links a):not(.footer a) {
    color: #60a5fa;
    text-decoration: none;
    border-bottom: 1px dashed #60a5fa;
}

.container a:not(.nav-links a):not(.footer a):hover {
    color: #a78bfa;
    border-bottom-style: solid;
}

/* Стиль для кода */
.container code {
    background: #0f172a;
    padding: 0.2rem 0.4rem;
    border-radius: 6px;
    font-size: 0.85rem;
    color: #2dd4bf;
}