/* DARK THEME OVERRIDE */

:root {
    --color-bg: #16191f;
    --color-bg-light: #232833;
    --color-bg-alt: #2b3140;
    --color-primary: #63b3ed;
    --color-primary-dark: #3498db;
    --color-accent: #667eea;
    --color-secondary: #764ba2;
    --color-card: #20242e;
    --color-border: #353b4b;
    --color-shadow: 0 2px 12px rgba(0,0,0,0.42);
    --color-text: #e3e8ee;
    --color-muted: #a2a9be;
    --color-highlight: rgba(99,179,237,0.08);
}

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

body {
    font-family: 'Noto Sans', system-ui, sans-serif;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* HEADER */
header {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--color-text);
}

header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--color-primary);
}

header p {
    color: var(--color-muted);
    font-size: 1.1rem;
}

/* FORM SECTION */
.input-section {
    background: var(--color-bg-light);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--color-shadow);
    margin-bottom: 2rem;
}

.input-group {
    margin-bottom: 1.5rem;
}

.input-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--color-primary);
}

/* Input Type Buttons */
.input-type-selector {
    display: flex;
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 1rem;
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
}

.input-type-selector .type-btn {
    flex-grow: 1;
    padding: 0.75rem 1rem;
    border: none;
    background: none;
    color: var(--color-muted);
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.2s, color 0.2s, box-shadow 0.2s;
    font-weight: 600;
}

.input-type-selector .type-btn:hover {
    background: var(--color-highlight);
    color: var(--color-primary);
}

.input-type-selector .type-btn.active {
    background: var(--color-primary);
    color: white;
    box-shadow: 0 2px 6px rgba(99,179,237,0.3);
}

.input-group select,
.input-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--color-border);
    border-radius: 4px;
    font-size: 1rem;
    background: var(--color-bg-alt);
    color: var(--color-text);
    transition: border-color 0.3s ease, background 0.2s;
}

.input-group select:focus,
.input-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    background: var(--color-bg-light);
}

.input-group textarea {
    min-height: 120px;
    resize: vertical;
}

/* Buttons for actions */
.input-actions {
    display: flex;
    gap: 1rem; /* Space between buttons */
    justify-content: flex-start;
    align-items: center;
    flex-wrap: wrap; /* Allow wrapping on smaller screens */
}

#generate-btn,
.secondary-btn {
    border: none;
    padding: 0.75rem 2rem;
    font-size: 1rem;
    border-radius: 4px;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(60, 80, 140, 0.2);
    transition: background 0.3s, transform 0.1s, box-shadow 0.3s;
    font-weight: bold;
}

#generate-btn {
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    color: white;
}

#generate-btn:hover {
    background: linear-gradient(90deg, var(--color-primary-dark), var(--color-secondary));
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 4px 10px rgba(60, 80, 140, 0.3);
}

.secondary-btn {
    background: var(--color-bg-alt);
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
    box-shadow: none; /* Override default button shadow */
}

.secondary-btn:hover {
    background: var(--color-highlight);
    color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 2px 8px rgba(99,179,237,0.2);
}

/* LOADING */
.loading {
    text-align: center;
    padding: 3rem;
    background: var(--color-bg-light);
    border-radius: 8px;
    box-shadow: var(--color-shadow);
    color: var(--color-text);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--color-border);
    border-top: 4px solid var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.hidden {
    display: none;
}

/* OUTPUT CARDS */
.output {
    background: var(--color-bg-light);
    border-radius: 8px;
    box-shadow: var(--color-shadow);
    overflow: hidden;
}

.language-header {
    padding: 2rem 2rem 2.5rem 2rem;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-secondary) 100%);
    color: white;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.language-header h2 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.language-info span {
    display: inline-block;
    background: rgba(255,255,255,0.09);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.9rem;
    margin-bottom: 1rem;
    color: #eaf2ff;
}

.language-info p {
    opacity: 0.95;
    line-height: 1.7;
    color: #f5f7ff;
}

.language-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 1rem;
    width: 100%;
}

.language-actions .secondary-btn {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.language-actions .secondary-btn:hover {
    background: rgba(255, 255, 255, 0.25);
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

/* TABS */
.section-tabs {
    display: flex;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    overflow-x: auto;
}

.tab-btn {
    background: none;
    border: none;
    padding: 1rem 1.5rem;
    cursor: pointer;
    font-size: 0.95rem;
    color: var(--color-muted);
    border-bottom: 3px solid transparent;
    transition: 
        color 0.25s, 
        background-color 0.2s, 
        border-bottom-color 0.19s;
    white-space: nowrap;
    font-weight: 600;
    letter-spacing: 0.01em;
}

.tab-btn:hover {
    color: var(--color-primary);
    background: var(--color-highlight);
}

.tab-btn.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
    background: var(--color-highlight);
}

.tab-content {
    display: none;
    padding: 2rem;
    background: var(--color-bg-light);
}

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

.subsection {
    margin-bottom: 2.1rem;
}

.subsection h3 {
    color: var(--color-primary);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--color-border);
    letter-spacing: 0.01em;
}

/* PHONEME PRESENTATION */
.phoneme-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.49rem;
}

.phoneme {
    background: var(--color-card);
    padding: 0.24rem 0.52rem;
    border-radius: 4px;
    font-family: 'JetBrains Mono', 'Fira Mono', 'Menlo', 'Courier New', monospace;
    font-size: 0.98rem;
    border: 1px solid var(--color-border);
    color: var(--color-primary);
    margin-bottom: 2px;
}

.phoneme-class {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: 1rem;
    margin-bottom: 1rem;
}

.phoneme-class h4 {
    color: var(--color-accent);
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.phoneme-class-id {
    background: var(--color-primary-dark);
    color: white;
    padding: 0.16rem 0.48rem;
    border-radius: 4px;
    font-size: 0.8rem;
    margin-left: 0.48rem;
}

.rule-pattern {
    background: var(--color-card);
    color: var(--color-text);
    padding: 0.68rem;
    border-radius: 4px;
    margin: 0.5rem 0 1.2rem 0;
    font-family: 'JetBrains Mono', 'Fira Mono', 'Menlo', 'Courier New', monospace;
    letter-spacing: 0.01em;
    border: 1px solid var(--color-border);
}

.ipa {
    font-family: 'JetBrains Mono', 'Fira Mono', 'Menlo', 'Courier New', monospace;
    color: var(--color-muted);
}

/* TABLES */
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
    background: var(--color-card);
    color: var(--color-text);
    box-shadow: 0 1px 6px rgba(0,0,0,0.12);
}

th, td {
    padding: 0.77rem 0.6rem;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

th {
    background: var(--color-bg);
    font-weight: 700;
    color: var(--color-accent);
}

tr:hover {
    background: var(--color-highlight);
}

.word-order-info {
    background: var(--color-card);
    padding: 1rem;
    border-radius: 4px;
    border-left: 4px solid var(--color-primary);
    color: var(--color-text);
}

/* TABLE EDITOR STYLES */
.table-editor-container {
    margin: 1rem 0;
    padding: 1rem;
    background: var(--color-bg);
    border-radius: 6px;
    border: 1px solid var(--color-border);
}

.table-editor-controls {
    margin-bottom: 1rem;
    display: flex;
    gap: 0.5rem;
}

.editable-table {
    width: 100%;
    border-collapse: collapse;
    margin: 0;
    background: var(--color-card);
    border: 1px solid var(--color-border);
}

.editable-table th,
.editable-table td {
    padding: 0.5rem;
    border: 1px solid var(--color-border);
    position: relative;
    vertical-align: top;
}

.editable-table th {
    background: var(--color-bg-alt);
    font-weight: 600;
    color: var(--color-accent);
}

.table-cell-input {
    width: 100%;
    border: none;
    background: transparent;
    color: inherit;
    font-size: inherit;
    font-family: inherit;
    padding: 0.25rem;
    box-sizing: border-box;
}

.table-cell-input:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: -2px;
    background: var(--color-highlight);
}

.table-remove-btn {
    position: absolute;
    top: 2px;
    right: 2px;
    width: 18px;
    height: 18px;
    padding: 0;
    font-size: 12px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.editable-table th:hover .table-remove-btn,
.editable-table td:hover .table-remove-btn {
    opacity: 1;
}

.table-remove-btn:hover {
    opacity: 1;
    background: #e74c3c;
}

/* ANCESTORS TREE */
.ancestors-tree {
    background: var(--color-card);
    padding: 1rem;
    border-radius: 4px;
    font-family: 'JetBrains Mono', 'Fira Mono', 'Menlo', 'Courier New', monospace;
    color: var(--color-muted);
}

.ancestor-level {
    margin-left: 1rem;
    border-left: 2px solid var(--color-border);
    padding-left: 1rem;
    margin-bottom: 0.5rem;
    color: var(--color-text);
}

.edit-mode .editable {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    padding: 0.25rem 0.5rem;
    border-radius: 3px;
    color: var(--color-text);
    font-family: inherit;
    font-size: inherit;
    width: 100%;
    box-sizing: border-box;
}

.edit-mode .editable:focus {
    outline: none;
    border-color: var(--color-primary);
    background: var(--color-bg-light);
}

.edit-mode .editable-textarea {
    min-height: 60px;
    resize: vertical;
}

.edit-mode .add-btn {
    background: var(--color-primary);
    color: white;
    border: none;
    padding: 0.25rem 0.5rem;
    border-radius: 3px;
    cursor: pointer;
    font-size: 0.8rem;
    margin-left: 0.5rem;
}

.edit-mode .remove-btn {
    background: #e74c3c;
    color: white;
    border: none;
    padding: 0.1rem 0.3rem;
    border-radius: 3px;
    cursor: pointer;
    font-size: 0.7rem;
    margin-left: 0.25rem;
}

.edit-mode .add-btn:hover {
    background: var(--color-primary-dark);
}

.edit-mode .remove-btn:hover {
    background: #c0392b;
}

.edit-mode .pos-rules {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--color-bg);
    border-radius: 4px;
    border: 1px solid var(--color-border);
}

.edit-mode .pos-rules h5 {
    color: var(--color-accent);
    margin-bottom: 0.5rem;
}

.edit-mode .rule-item {
    margin-bottom: 1rem;
    padding: 1rem;
    background: var(--color-bg-alt);
    border-radius: 4px;
    border: 1px solid var(--color-border);
}

.edit-mode .rule-item strong {
    color: var(--color-primary);
}

.edit-mode .rule-item input,
.edit-mode .rule-item textarea {
    margin-top: 0.25rem;
    margin-bottom: 0.5rem;
}

.generate-word-btn {
    background: var(--color-primary);
    border: none;
    padding: 0.25rem;
    border-radius: 3px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
    min-width: 24px;
    height: 24px;
}

.generate-word-btn:hover {
    background: var(--color-primary-dark);
}

.generate-word-btn svg {
    width: 16px;
    height: 16px;
}

@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    .section-tabs {
        flex-direction: column;
    }
    
    .tab-btn {
        text-align: center;
        border-bottom: none;
        border-right: 3px solid transparent;
    }
    
    .tab-btn.active {
        border-right-color: var(--color-primary);
        border-bottom-color: transparent;
    }
    
    .phoneme-list {
        justify-content: center;
    }
    .tab-content {
        padding: 1.1rem;
    }

    .input-type-selector {
        flex-direction: column;
    }

    .input-type-selector .type-btn {
        border-bottom: 1px solid var(--color-border);
    }
    
    .input-type-selector .type-btn:last-child {
        border-bottom: none;
    }

    .input-actions {
        flex-direction: column;
        align-items: stretch;
    }
    .input-actions button {
        width: 100%;
    }

    .language-actions {
        flex-direction: column;
        align-items: stretch;
    }
}

/* Scrollbar dark styling */
::-webkit-scrollbar {
    width: 10px;
    background: var(--color-bg-alt);
}
::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 6px;
}