/* ================================================================
   JSON Utility Tools — Style Mandiri untuk JSON Validator
   ================================================================ */

* { box-sizing: border-box; }
body {
    background: #f4f6f9;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}
.app-wrapper { flex: 1; display: flex; flex-direction: column; }

/* Header */
.custom-header {
    background: linear-gradient(135deg, #0d6efd, #0a58ca);
    color: white;
    padding: 1.2rem 0;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}
.custom-header h1 { font-size: 1.8rem; font-weight: 600; margin: 0; }
.custom-header p { margin: 0; opacity: 0.9; font-size: 0.9rem; }
.header-menu { display: flex; gap: 1.5rem; align-items: center; }
.header-menu-link {
    color: white; text-decoration: none; font-weight: 500; padding: 0.5rem 0; opacity: 0.85; transition: 0.2s;
    border-bottom: 2px solid transparent;
}
.header-menu-link:hover { opacity: 1; border-color: rgba(255,255,255,0.6); }

/* Flex Layout Container */
.main-flex-container { flex: 1; display: flex; flex-direction: row; }
@media (max-width: 768px) { .main-flex-container { flex-direction: column; } }

/* Sidebar Navigation */
.sidebar-menu {
    width: 260px; background: #ffffff; border-right: 1px solid #e2e8f0; padding: 1.5rem 1rem;
    display: flex; flex-direction: column; justify-content: space-between;
}
@media (max-width: 768px) { .sidebar-menu { width: 100%; border-right: none; border-bottom: 1px solid #e2e8f0; padding: 1rem; } }
.menu-item {
    display: flex; align-items: center; gap: 0.75rem; padding: 0.8rem 1rem; color: #475569;
    text-decoration: none; font-weight: 500; border-radius: 8px; margin-bottom: 0.5rem; transition: 0.2s all;
}

.menu-item-icon {
    display: inline-block;
    width: 1.25rem;
    flex-shrink: 0;
    text-align: center;
    font-size: 0.95rem;
    line-height: 1;
}

.menu-item:hover { background: #f1f5f9; color: #1e293b; }
.menu-item.active { background: #eff6ff; color: #2563eb; font-weight: 600; }
.sidebar-info { font-size: 0.8rem; color: #94a3b8; padding: 0.5rem 1rem; border-top: 1px dashed #e2e8f0; margin-top: 1rem; }

/* Main Workspace Area */
.work-area { flex: 1; padding: 2rem; }
@media (max-width: 576px) { .work-area { padding: 1rem; } }

/* Workspace Card */
.tool-card {
    background: #ffffff; border-radius: 12px; padding: 2rem; margin-bottom: 2rem;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05), 0 2px 4px -1px rgba(0,0,0,0.03);
}
.tool-title { font-size: 1.4rem; font-weight: 600; color: #1e293b; margin-bottom: 1.5rem; border-left: 4px solid #2563eb; padding-left: 0.75rem; }

/* Form Controls */
.json-textarea, .output-area { font-family: 'Courier New', Courier, monospace; font-size: 0.95rem; border: 1px solid #cbd5e1; border-radius: 8px; transition: 0.2s; }
.json-textarea:focus { border-color: #3b82f6; box-shadow: 0 0 0 3px rgba(59,130,246,0.15); }
.output-area { background: #f8fafc !important; color: #0f172a; }

/* Error Alert Box */
.error-box { background: #fef2f2; border: 1px solid #fca5a5; color: #991b1b; padding: 1rem; border-radius: 8px; font-size: 0.9rem; }

/* Utility Copy Button */
.btn-copy { background: #f1f5f9; border: 1px solid #cbd5e1; padding: 0.35rem 0.75rem; font-size: 0.85rem; font-weight: 500; color: #475569; border-radius: 6px; transition: 0.2s; }
.btn-copy:hover { background: #e2e8f0; color: #1e293b; }
.btn-copy.copy-success { background: #d1fae5; border-color: #a7f3d0; color: #065f46; }

/* History Section */
.history-section { background: #ffffff; border-radius: 12px; padding: 1.5rem; border: 1px solid #e2e8f0; }
.btn-clear-history { background: none; border: none; color: #ef4444; font-size: 0.85rem; font-weight: 500; }
.btn-clear-history:hover { text-decoration: underline; }
.history-item { padding: 0.75rem 1rem; border-bottom: 1px solid #f1f5f9; cursor: pointer; transition: 0.2s; }
.history-item:hover { background: #f8fafc; }
.history-header { display: flex; justify-content: space-between; font-size: 0.8rem; margin-bottom: 0.25rem; }
.history-tool { font-weight: 600; color: #475569; }
.history-time { color: #94a3b8; }
.history-preview { font-size: 0.85rem; color: #64748b; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* SEO Section */
.seo-article-section h3 { font-size: 1.5rem; color: #1e293b; font-weight: 600; }
.seo-article-section h4 { font-size: 1.2rem; color: #334155; margin-top: 1.5rem; }
.seo-article-section p, .seo-article-section li { color: #64748b; font-size: 0.95rem; line-height: 1.6; }

/* Feedback Input Styling (image_c0dc5f.png Reference) */
.feedback-textarea, .feedback-input { border: 1px solid #cbd5e1; border-radius: 6px; font-size: 0.95rem; padding: 0.6rem 0.75rem; }
.feedback-textarea:focus, .feedback-input:focus { border-color: #3b82f6; box-shadow: 0 0 0 3px rgba(59,130,246,0.15); }
.feedback-form-container .btn-primary { background-color: #0d6efd; border-color: #0d6efd; font-weight: 500; padding: 0.6rem; border-radius: 6px; }

/* Footer & Scroll to Top */
.custom-footer { background: #1e293b; color: #cbd5e1; text-align: center; padding: 1rem 0; font-size: 0.9rem; }
.scroll-to-top {
    position: fixed; bottom: 30px; right: 30px; background: #0d6efd; color: white; width: 45px; height: 45px;
    border-radius: 50%; display: flex; align-items: center; justify-content: center; cursor: pointer; opacity: 0; transition: 0.3s; z-index: 1000; border: none;
}
.scroll-to-top.show { opacity: 1; }