/* Import Google Font */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600;700&display=swap');

:root {
    --bg-color: #0e1117;
    --card-bg: #262730;
    --text-color: #f0f2f6;
    --accent-color: #7b2cbf;
    --accent-hover: #9d4edd;
    --border-color: #41424b;
}

body {
    background-color: var(--bg-color);
    font-family: 'Inter', sans-serif;
    color: var(--text-color);
    margin: 0;
    padding: 2rem;
    line-height: 1.6;
}

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

/* Headers */
h1, h2, h3, h4 {
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
}

.subtitle {
    font-size: 1.1rem;
    color: #aeb5bd;
    margin-bottom: 2rem;
}

/* Tabs */
.tabs {
    display: flex;
    gap: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 2rem;
}

.tab-btn {
    background: none;
    border: none;
    color: #aeb5bd;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    padding: 0.8rem 0;
    cursor: pointer;
    position: relative;
    transition: color 0.3s;
}

.tab-btn:hover {
    color: var(--text-color);
}

.tab-btn.active {
    color: var(--text-color);
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--accent-color);
    border-radius: 3px 3px 0 0;
}

/* Content Sections */
.tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

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

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Forms & Inputs */
.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: 0.95rem;
}

input[type="text"],
textarea,
select {
    width: 100%;
    background-color: var(--card-bg);
    color: white;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 0.8rem;
    font-family: inherit;
    font-size: 1rem;
    box-sizing: border-box; /* Fix padding expanding width */
    transition: border-color 0.2s;
}

input[type="text"]:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--accent-color);
}

textarea {
    resize: vertical;
    min-height: 200px;
}

/* Buttons */
.btn-primary {
    width: 100%;
    background-color: var(--accent-color);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 0.8rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    box-shadow: 0 4px 15px rgba(123, 44, 191, 0.4);
}

.btn-primary:disabled {
    background-color: #4a4b52;
    cursor: not-allowed;
    box-shadow: none;
}

/* File Upload */
.file-drop-area {
    border: 2px dashed var(--border-color);
    border-radius: 10px;
    padding: 3rem;
    text-align: center;
    background-color: rgba(38, 39, 48, 0.5);
    transition: border-color 0.3s;
    cursor: pointer;
    position: relative;
}

.file-drop-area:hover {
    border-color: var(--accent-color);
}

.file-drop-area input[type="file"] {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.file-msg {
    color: #aeb5bd;
    pointer-events: none;
}

/* Select Grid */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

/* Progress Bar */
.progress-container {
    width: 100%;
    background-color: var(--card-bg);
    border-radius: 5px;
    margin: 1.5rem 0;
    overflow: hidden;
    height: 8px;
    display: none;
}

.progress-bar {
    width: 0%;
    height: 100%;
    background-color: var(--accent-color);
    transition: width 0.3s ease;
}

/* Results */
.results-area {
    margin-top: 3rem;
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
}

.markdown-body table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

.markdown-body th, .markdown-body td {
    border: 1px solid var(--border-color);
    padding: 0.8rem;
    text-align: left;
}

.markdown-body th {
    background-color: var(--card-bg);
    color: var(--accent-color);
}

.spinner {
    display: inline-block;
    width: 1rem;
    height: 1rem;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
    margin-right: 0.5rem;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.hidden {
    display: none !important;
}