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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    background: #f5f7fa;
    background-image: 
      repeating-linear-gradient(
        45deg,
        transparent,
        transparent 35px,
        rgba(255, 255, 255, 0.4) 35px,
        rgba(255, 255, 255, 0.4) 70px
      ),
      repeating-linear-gradient(
        -45deg,
        transparent,
        transparent 35px,
        rgba(230, 235, 240, 0.3) 35px,
        rgba(230, 235, 240, 0.3) 70px
      );
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
    color: #1d1d1f;
}

.back-link-wrapper {
    width: 100%;
    max-width: 720px;
    margin-bottom: 16px;
}

.back-link {
    color: #007AFF;
    text-decoration: none;
    font-size: 17px;
    font-weight: 500;
    transition: opacity 0.3s;
    display: inline-block;
}

.back-link:hover {
    opacity: 0.7;
}

.container {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    padding: 50px 40px;
    border-radius: 24px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2), 0 8px 16px rgba(0, 0, 0, 0.1);
    text-align: center;
    max-width: 720px;
    width: 100%;
    margin: auto;
}

h1 {
    font-size: 36px;
    font-weight: 700;
    color: #1d1d1f;
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}

p {
    font-size: 17px;
    color: #86868b;
    margin-bottom: 32px;
}

label {
    display: block;
    color: #86868b;
    margin-bottom: 12px;
    font-size: 15px;
    font-weight: 500;
    text-align: left;
}

textarea {
    width: 100%;
    height: 180px;
    padding: 14px 16px;
    border-radius: 12px;
    border: 1px solid #d2d2d7;
    margin-bottom: 20px;
    background-color: #f5f5f7;
    color: #1d1d1f;
    font-family: 'SF Mono', 'Monaco', 'Menlo', monospace;
    font-size: 14px;
    resize: vertical;
    transition: all 0.3s;
}

textarea:focus {
    outline: none;
    border-color: #007AFF;
    background-color: #ffffff;
    box-shadow: 0 0 0 4px rgba(0, 122, 255, 0.1);
}

input[type="text"] {
    width: 100%;
    padding: 14px 16px;
    border-radius: 12px;
    border: 1px solid #d2d2d7;
    margin-bottom: 20px;
    background-color: #f5f5f7;
    color: #1d1d1f;
    font-size: 17px;
    transition: all 0.3s;
}

input[type="text"]:focus {
    outline: none;
    border-color: #007AFF;
    background-color: #ffffff;
    box-shadow: 0 0 0 4px rgba(0, 122, 255, 0.1);
}

details {
    margin-bottom: 24px;
    text-align: left;
    width: 100%;
}

summary {
    cursor: pointer;
    color: #007AFF;
    margin-bottom: 12px;
    font-size: 15px;
    font-weight: 500;
    padding: 12px 16px;
    background: #f5f5f7;
    border-radius: 12px;
    transition: all 0.3s;
}

summary:hover {
    background: #e8e8ed;
}

summary::-webkit-details-marker {
    display: none;
}

summary::before {
    content: '›';
    display: inline-block;
    margin-right: 8px;
    transition: transform 0.3s;
}

details[open] summary::before {
    transform: rotate(90deg);
}

.manual-inputs {
    background-color: #f5f5f7;
    padding: 20px;
    border-radius: 12px;
    margin-top: 12px;
}

button {
    width: 100%;
    padding: 16px 24px;
    background-color: #007AFF;
    border: none;
    border-radius: 12px;
    color: #ffffff;
    font-weight: 600;
    font-size: 17px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    margin-bottom: 24px;
}

button:hover {
    background-color: #0051D5;
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(0, 122, 255, 0.3);
}

button:active {
    transform: translateY(0);
}

#error {
    color: #ff3b30;
    margin-bottom: 20px;
    font-size: 15px;
    font-weight: 500;
}

.result-list {
    list-style: none;
    padding: 0;
    text-align: left;
}

.result-item {
    background-color: #f5f5f7;
    padding: 16px;
    margin-bottom: 12px;
    border-radius: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    border: 1px solid #e5e5e7;
}

.filename {
    word-break: break-all;
    font-family: 'SF Mono', 'Monaco', 'Menlo', monospace;
    font-size: 14px;
    color: #1d1d1f;
    flex: 1;
}

.copy-btn {
    padding: 8px 16px;
    font-size: 14px;
    background-color: #007AFF;
    margin-bottom: 0;
    width: auto;
    flex-shrink: 0;
}

.copy-btn:hover {
    background-color: #0051D5;
}