:root {
    --primary-color: #ffc107; /* Sunflower Yellow */
    --dark-bg: #1a1a1a;
    --form-bg: rgba(40, 40, 40, 0.85);
    --text-color: #f0f0f0;
    --input-bg: #2f2f2f;
    --border-color: #444;
}
body {
    font-family: 'Vazirmatn', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background-color: var(--dark-bg);
    color: var(--text-color);
    margin: 0; padding: 20px;
    display: flex; justify-content: center; align-items: center;
    min-height: 100vh; direction: rtl;
}
.background-svg { position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: -1; overflow: hidden; }
.form-container {
    background: var(--form-bg);
    padding: 30px 40px; border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    width: 100%; max-width: 700px;
    backdrop-filter: blur(10px); border: 1px solid var(--border-color);
}
header h1 { color: var(--primary-color); text-align: center; margin-bottom: 25px; font-weight: 700; }
.progress-bar { position: relative; display: flex; justify-content: space-between; margin-bottom: 30px; width: 80%; margin-left: auto; margin-right: auto; }
.progress-bar::before { content: ''; position: absolute; top: 50%; transform: translateY(-50%); height: 4px; width: 100%; background-color: var(--border-color); z-index: 1; }
.progress { position: absolute; top: 50%; transform: translateY(-50%); height: 4px; background-color: var(--primary-color); z-index: 2; width: 0%; transition: 0.3s ease; }
.step-indicator { width: 30px; height: 30px; border-radius: 50%; background-color: var(--input-bg); border: 2px solid var(--border-color); color: var(--text-color); display: flex; justify-content: center; align-items: center; z-index: 3; transition: 0.3s ease; }
.step-indicator.active { background-color: var(--primary-color); border-color: var(--primary-color); color: var(--dark-bg); font-weight: bold; }
.form-step { display: none; }
.form-step.active { display: block; }
.form-step h2 { text-align: center; margin-bottom: 20px; color: #ddd; }
.input-group { margin-bottom: 20px; }
.input-group label { display: block; margin-bottom: 8px; font-weight: 400; color: #ccc; }
input[type="text"], input[type="tel"], select, textarea { width: 100%; padding: 12px; background-color: var(--input-bg); border: 1px solid var(--border-color); border-radius: 8px; color: var(--text-color); font-size: 16px; box-sizing: border-box; transition: border-color 0.3s, box-shadow 0.3s; font-family: inherit;}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary-color); box-shadow: 0 0 0 3px rgba(255, 193, 7, 0.2); }
.btn-group { display: flex; justify-content: space-between; margin-top: 30px; }
.btn { padding: 12px 25px; border: none; border-radius: 8px; background-color: var(--primary-color); color: var(--dark-bg); font-size: 16px; font-weight: bold; cursor: pointer; transition: background-color 0.3s, transform 0.2s; font-family: inherit; }
.btn:hover:not(:disabled) { background-color: #ffda6a; transform: translateY(-2px); }
.btn:disabled { background-color: #555; cursor: not-allowed; }
.btn-prev { background-color: #555; color: var(--text-color); }
.btn-prev:hover { background-color: #666; }
#file-upload-area { border: 2px dashed var(--border-color); padding: 20px; text-align: center; border-radius: 8px; cursor: pointer; transition: border-color 0.3s; }
#file-upload-area:hover { border-color: var(--primary-color); }
.file-instructions { font-size: 13px; color: #aaa; margin-top: 10px; }
#file-list .file-item { display: flex; justify-content: space-between; align-items: center; background: var(--input-bg); padding: 10px; border-radius: 5px; margin-top: 8px; }
.status-message, #form-message { text-align: right; margin-top: 10px; font-size: 14px; padding: 10px; border-radius: 8px; display: none; }
#form-message.success { background-color: #28a745; color: white; display: block; }
#form-message.error { background-color: #dc3545; color: white; display: block; }
.status-message { display: block; background: none; padding: 0; }
@media (max-width: 600px) { .form-container { padding: 20px; } header h1 { font-size: 24px; } .btn-group { flex-direction: column-reverse; gap: 10px; } .btn { width: 100%; }}
@media (max-width: 480px) {
    .file-preview {
        width: 80px; /* تنظیم اندازه‌ی مناسب‌تر */
        height: 80px;
    }
}

/* استایل برای پیش‌نمایش عکس */
.file-item {
    gap: 15px; /* ایجاد فاصله بین عناصر داخل آیتم فایل */
}
.file-preview {
    width: 40px;
    height: 40px;
    border-radius: 5px;
    object-fit: cover; /* برای اینکه عکس دفرمه نشود */
}
.file-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}
.file-info {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-grow: 1; /* اجازه می‌دهد این بخش بزرگ شود */
    overflow: hidden; /* جلوگیری از بیرون زدن نام فایل */
}
.file-info span {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.file-preview {
    width: 40px;
    height: 40px;
    border-radius: 5px;
    object-fit: cover;
    flex-shrink: 0; /* جلوگیری از کوچک شدن عکس */
}
.file-progress-container {
    width: 100px;
    height: 6px;
    background-color: #555;
    border-radius: 3px;
    overflow: hidden;
}
.file-progress-bar {
    height: 100%;
    background-color: var(--primary-color);
    transition: width 0.2s ease-in-out;
}
.file-status {
    font-size: 20px;
    font-weight: bold;
}