body {
    font-family: 'Inter', sans-serif;
}

/* --- Navigation Pill Styles (New Layout) --- */
.tab-nav-container {
    /* Background for the pill container */
    background-color: #f1f5f9; /* slate-100 */
    border-radius: 0.75rem; /* rounded-xl */
    padding: 0.5rem;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
}

.tab-btn {
    padding: 0.5rem 1rem;
    font-weight: 600;
    font-size: 0.875rem; /* 14px */
    color: #64748b; /* slate-500 */
    border-radius: 0.5rem; /* rounded-lg */
    transition: all 0.2s ease;
    cursor: pointer;
    border: 1px solid transparent;
    background-color: transparent;
}

.tab-btn:hover {
    background-color: #e2e8f0; /* slate-200 */
    color: #334155; /* slate-700 */
}

.tab-btn.active {
    background-color: #ffffff;
    color: #4f46e5; /* indigo-600 */
    box-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    border-color: #e2e8f0;
}

/* --- Styles from Verifier App --- */
.custom-file-upload {
    border: 2px dashed #cbd5e1;
    padding: 1rem 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.custom-file-upload:hover, .dragover {
    border-color: #4f46e5;
    background-color: #f8fafc;
}
input[type="file"] {
    display: none;
}
.spinner {
    border: 4px solid rgba(0, 0, 0, 0.1);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border-left-color: #4f46e5;
    animation: spin 1s ease infinite;
}

/* --- Styles from Merger App --- */
#mergerTab textarea::-webkit-scrollbar,
#mergerTab div::-webkit-scrollbar {
    width: 8px;
}
#mergerTab textarea::-webkit-scrollbar-track,
#mergerTab div::-webkit-scrollbar-track {
    background: #e2e8f0;
}
#mergerTab textarea::-webkit-scrollbar-thumb,
#mergerTab div::-webkit-scrollbar-thumb {
    background: #94a3b8;
    border-radius: 4px;
}
#mergerTab textarea::-webkit-scrollbar-thumb:hover,
#mergerTab div::-webkit-scrollbar-thumb:hover {
    background: #64748b;
}

/* --- Styles from Translator App --- */
@keyframes spin {
    to { transform: rotate(360deg); }
}

/* --- Styles for Transcriber Tab --- */
#transcriberTab input[type="file"]::file-selector-button {
    background: #4F46E5;
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    cursor: pointer;
    transition: background-color 0.2s;
    font-weight: 600;
    font-size: 0.875rem;
}
#transcriberTab input[type="file"]::file-selector-button:hover {
    background: #4338CA;
}

/* --- Styles for Alternative (Rephraser) Tab --- */
#alternativeTab textarea {
    font-family: 'Inter', sans-serif;
}
#alternativeTab textarea:focus {
     border-color: #4f46e5;
     box-shadow: 0 0 0 1px #4f46e5;
     outline: none;
}

/* --- Styles for Resync Tab --- */
.resync-line-input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #cbd5e1;
    border-radius: 0.375rem;
    box-shadow: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    transition: all 0.2s;
}
.resync-line-input:focus {
    border-color: #4f46e5;
    box-shadow: 0 0 0 1px #4f46e5;
    outline: none;
}
.resync-line-input::-webkit-outer-spin-button,
.resync-line-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
.resync-line-input[type=number] {
  -moz-appearance: textfield;
}

/* --- API Checker Styles --- */
.status-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}
.status-badge.success { background-color: #d1fae5; color: #059669; }
.status-badge.error { background-color: #fee2e2; color: #dc2626; }
.status-badge.warning { background-color: #fef3c7; color: #d97706; }
.status-badge.loading { background-color: #e2e8f0; color: #475569; }