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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #d1d5db 0%, #e5e7eb 100%);
    min-height: 100vh;
    padding: 20px;
}

.page-wrapper {
    max-width: 600px;
    margin: 0 auto;
    width: 100%;
}

.logo {
    height: 40px;
    width: auto;
    margin-bottom: 20px;
    display: block;
}

.container {
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
    padding: 40px;
    max-width: 600px;
    width: 100%;
    margin: 0 auto;
}

h1 {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 10px;
    font-size: 28px;
}

.subtitle {
    text-align: center;
    color: #000000;
    margin-bottom: 30px;
    font-size: 14px;
}

.upload-hint {
    color: #000;
    font-size: 11px;
    display: block;
    margin-top: 3px;
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #34495e;
}

input[type="text"],
input[type="number"],
input[type="color"],
textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s;
}

input[type="text"]:focus,
input[type="number"]:focus,
textarea:focus {
    outline: none;
    border-color: #2563eb;
}

input[type="color"] {
    height: 50px;
    cursor: pointer;
}

.color-preview {
    display: flex;
    align-items: center;
    gap: 10px;
}

button {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, #1e40af 0%, #1e3a8a 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s;
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(30, 64, 175, 0.4);
}

.preview {
    margin-top: 30px;
    text-align: center;
}

.preview img {
    max-width: 100%;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.error {
    background: #fee;
    color: #c33;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    border-left: 4px solid #c33;
}

.info {
    background: #dbeafe;
    color: #1e40af;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    border-left: 4px solid #2563eb;
    font-size: 14px;
}

.actions {
    display: flex;
    gap: 10px;
    margin-top: 15px;
}

.btn-secondary {
    background: #64748b;
}

.btn-secondary:hover {
    background: #475569;
}

textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s;
    font-family: inherit;
    resize: vertical;
    min-height: 120px;
}

textarea:focus {
    outline: none;
    border-color: #2563eb;
}

.text-inputs-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 15px;
    margin-bottom: 20px;
}

.text-input-wrapper {
    transition: all 0.3s ease;
}

.text-input-wrapper.hidden {
    display: none;
}

.input-number {
    font-weight: bold;
    color: #2563eb;
    margin-right: 5px;
}

#progressBar {
    width: 100%;
    height: 30px;
    background: #f0f0f0;
    border-radius: 15px;
    overflow: hidden;
    margin: 20px 0;
    display: none;
}

#progressFill {
    height: 100%;
    background: linear-gradient(135deg, #1e40af 0%, #1e3a8a 100%);
    width: 0%;
    transition: width 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
}