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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: #f5f7fa;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    padding: 30px 0 20px;
}

header h1 {
    font-size: 2em;
    color: #1a1a2e;
    margin-bottom: 8px;
}

.subtitle {
    color: #666;
    font-size: 1.1em;
    margin-bottom: 20px;
}

.key-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 15px;
}

.key-bar label {
    font-weight: 600;
    color: #444;
}

.key-bar input {
    width: 380px;
    padding: 10px 15px;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
    transition: border-color 0.3s;
}

.key-bar input:focus {
    outline: none;
    border-color: #4a6cf7;
}

.key-bar button {
    padding: 10px 15px;
    border: none;
    background: #eee;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
}

/* Tabs */
.tabs {
    display: flex;
    justify-content: center;
    gap: 5px;
    margin: 25px 0;
    background: #fff;
    padding: 8px;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.tab {
    padding: 12px 30px;
    border: none;
    background: transparent;
    border-radius: 8px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 500;
    color: #666;
    transition: all 0.3s;
}

.tab:hover {
    background: #f0f4ff;
    color: #4a6cf7;
}

.tab.active {
    background: #4a6cf7;
    color: #fff;
}

/* Tab Content */
.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* Service Grid */
.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 20px;
}

.service-card {
    background: #fff;
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.05);
    transition: transform 0.2s, box-shadow 0.2s;
}

.service-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 25px rgba(0,0,0,0.1);
}

.service-card.wide {
    grid-column: 1 / -1;
    max-width: 700px;
}

.service-card h3 {
    font-size: 1.2em;
    color: #1a1a2e;
    margin-bottom: 8px;
}

.service-card > p {
    color: #888;
    font-size: 0.9em;
    margin-bottom: 18px;
}

/* Forms */
.form-group {
    margin-bottom: 14px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: #555;
    margin-bottom: 5px;
}

.form-group input[type="text"],
.form-group input[type="url"],
.form-group input[type="password"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 10px 12px;
    border: 1.5px solid #e0e0e0;
    border-radius: 8px;
    font-size: 14px;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: #4a6cf7;
}

.form-group textarea {
    height: 70px;
    resize: vertical;
}

.form-group input[type="file"] {
    font-size: 13px;
    padding: 8px 0;
}

.form-row {
    display: flex;
    gap: 12px;
}

.form-group.half {
    flex: 1;
}

/* Buttons */
.btn-primary {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, #4a6cf7, #6366f1);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.3s;
    margin-top: 5px;
}

.btn-primary:hover {
    opacity: 0.9;
}

.btn-primary:disabled {
    background: #ccc;
    cursor: not-allowed;
}

/* Result Area */
.result-area {
    margin-top: 30px;
    background: #fff;
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.05);
}

.result-area h3 {
    margin-bottom: 15px;
    color: #1a1a2e;
}

.result-status {
    padding: 10px 15px;
    border-radius: 8px;
    margin-bottom: 15px;
    font-weight: 500;
}

.result-status.loading {
    background: #fff3cd;
    color: #856404;
}

.result-status.success {
    background: #d4edda;
    color: #155724;
}

.result-status.error {
    background: #f8d7da;
    color: #721c24;
}

.result-content {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 15px;
    font-size: 14px;
    max-height: 500px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-break: break-all;
}

.result-content img {
    max-width: 100%;
    border-radius: 8px;
    margin: 10px 0;
}

.result-content video {
    max-width: 100%;
    border-radius: 8px;
    margin: 10px 0;
}

/* Responsive */
@media (max-width: 768px) {
    .service-grid {
        grid-template-columns: 1fr;
    }
    .key-bar {
        flex-direction: column;
    }
    .key-bar input {
        width: 100%;
    }
    .tabs {
        flex-wrap: wrap;
    }
}