/* 
  Bilingual Engineering Lab Assistant - Style System
  Theme: Cyberpunk Minimalist / Dark Mode
  Aesthetic: Premium, Sleek, Glowing Mint Accents, High Contrast
*/

:root {
    --bg-color: #121212;
    --card-bg: #1C1C1E;
    --accent-color: #45D19F;
    --accent-hover: #34B086;
    --status-amber: #FF9F0A;
    --muted-grey: #3A3A3C;
    --text-primary: #FFFFFF;
    --text-secondary: #A1A1A1;
    --text-label: #8E8E93;
    
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: 'Roboto Mono', monospace;
    
    --border-glow: 0 0 15px rgba(69, 209, 159, 0.15);
    --button-glow: 0 0 20px rgba(69, 209, 159, 0.4);
    --panel-glow: 0 10px 30px rgba(0, 0, 0, 0.5);
    --transition-speed: 0.25s;
}

/* Reset and Core Styles */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-color);
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(20, 20, 20, 0.8) 0%, rgba(10, 10, 10, 0.9) 90%),
        linear-gradient(rgba(255, 255, 255, 0.007) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.007) 1px, transparent 1px);
    background-size: 100% 100%, 30px 30px, 30px 30px;
    font-family: var(--font-body);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    line-height: 1.5;
}

.cyber-container {
    max-width: 1300px;
    width: 100%;
    margin: 0 auto;
    padding: 30px 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 25px;
}

/* Glassmorphism Panel Template */
.glass-panel {
    background: var(--card-bg);
    border: 1px solid var(--muted-grey);
    border-radius: 12px;
    box-shadow: var(--panel-glow);
    padding: 25px;
    position: relative;
    overflow: visible; /* Changed from hidden to allow absolute section-badges to display without clipping */
}

.section-badge {
    position: absolute;
    top: 0;
    left: 20px;
    transform: translateY(-50%);
    background: var(--bg-color);
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    padding: 2px 8px;
    border-radius: 4px;
}

/* Header Styles */
.cyber-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid var(--muted-grey);
    padding-bottom: 20px;
    margin-bottom: 10px;
}

.header-title {
    font-family: var(--font-heading);
    font-size: 2.1rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #FFFFFF 30%, #CFD4D9 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin: 6px 0;
}

.title-badge {
    display: inline-block;
    background: rgba(69, 209, 159, 0.1);
    border: 1px solid rgba(69, 209, 159, 0.3);
    color: var(--accent-color);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    padding: 3px 10px;
    border-radius: 50px;
}

.header-subtitle {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.author-info {
    display: flex;
    align-items: center;
    gap: 25px; /* Spaced gap matching the screenshot */
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--muted-grey);
    padding: 6px 16px;
    border-radius: 8px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
}

.author-name {
    font-weight: 700;
    color: #FFFFFF;
}

.author-email {
    font-weight: 700;
    color: #FFFFFF;
}

.header-status {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--muted-grey);
    padding: 6px 14px;
    border-radius: 8px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
}

.status-dot {
    width: 8px;
    height: 8px;
    background-color: var(--accent-color);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent-color);
    display: inline-block;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { opacity: 0.4; }
    50% { opacity: 1; }
    100% { opacity: 0.4; }
}

.status-text {
    color: var(--text-primary);
    font-weight: 500;
}

/* Controls & Segmented Controls */
.controls-layout {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 5px;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.control-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--text-label);
}

.segmented-control {
    display: flex;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--muted-grey);
    border-radius: 8px;
    padding: 4px;
    width: 100%;
}

.segmented-control input[type="radio"] {
    display: none;
}

.segment-btn {
    flex: 1;
    text-align: center;
    padding: 12px 15px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-secondary);
    border-radius: 6px;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
}

.segment-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.03);
}

.segmented-control input[type="radio"]:checked + .segment-btn {
    background: var(--accent-color);
    color: #121212;
    font-weight: 700;
    box-shadow: var(--border-glow);
}

.btn-icon {
    font-size: 1.1rem;
}

/* Action Group & Buttons */
.action-group {
    display: flex;
    gap: 15px;
    width: 100%;
}

.primary-btn, .secondary-btn {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    padding: 14px 28px;
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition-speed) cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    justify-content: center;
    align-items: center;
    flex: 1;
    border: none;
}

.primary-btn {
    background: var(--accent-color);
    color: #121212;
    box-shadow: var(--border-glow);
}

.primary-btn:hover:not(:disabled) {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--button-glow);
}

.primary-btn:active:not(:disabled) {
    transform: translateY(0);
}

.primary-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    box-shadow: none;
}

.secondary-btn {
    background: transparent;
    color: var(--accent-color);
    border: 1px solid var(--accent-color);
}

.secondary-btn:hover:not(:disabled) {
    background: rgba(69, 209, 159, 0.08);
    transform: translateY(-2px);
    box-shadow: var(--border-glow);
}

.secondary-btn:active:not(:disabled) {
    transform: translateY(0);
}

.secondary-btn:disabled {
    opacity: 0.3;
    border-color: var(--muted-grey);
    color: var(--text-secondary);
    cursor: not-allowed;
}

/* Welcome Panel */
.welcome-panel {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 50px 30px;
    gap: 20px;
}

.welcome-icon {
    font-size: 3rem;
    width: 75px;
    height: 75px;
    background: rgba(69, 209, 159, 0.1);
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: var(--border-glow);
    animation: float 4s ease-in-out infinite;
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-8px); }
    100% { transform: translateY(0px); }
}

.welcome-panel h2 {
    font-family: var(--font-heading);
    font-size: 1.7rem;
    font-weight: 700;
}

.welcome-panel p {
    color: var(--text-secondary);
    max-width: 600px;
    font-size: 0.95rem;
}

.logistics-tags {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    justify-content: center;
    margin: 10px 0;
}

.tag {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--muted-grey);
    padding: 6px 14px;
    border-radius: 6px;
    font-size: 0.85rem;
    color: var(--text-primary);
    font-weight: 500;
}

.prompt-text {
    font-size: 0.85rem !important;
    border-top: 1px solid var(--muted-grey);
    padding-top: 20px;
    width: 100%;
}

/* Phase Cards & Table Layout */
.guide-wrapper {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.phase-card {
    padding: 0; /* Let header and table span full width */
    overflow: hidden;
}

.phase-header {
    background: rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid var(--muted-grey);
    padding: 18px 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.phase-title {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 12px;
}

.phase-title::before {
    content: "";
    display: inline-block;
    width: 4px;
    height: 18px;
    background: var(--accent-color);
    border-radius: 2px;
}

.phase-status-badge {
    background: rgba(255, 159, 10, 0.1);
    border: 1px solid var(--status-amber);
    color: var(--status-amber);
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.phase-status-dot {
    width: 5px;
    height: 5px;
    background-color: var(--status-amber);
    border-radius: 50%;
    display: inline-block;
}

/* Cyber Table Design */
.table-container {
    overflow-x: auto;
    width: 100%;
}

.cyber-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.9rem;
}

.cyber-table th {
    background: rgba(0, 0, 0, 0.2);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--text-label);
    text-transform: uppercase;
    padding: 14px 20px;
    border-bottom: 2px solid var(--muted-grey);
}

.cyber-table td {
    padding: 16px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    vertical-align: top;
    line-height: 1.45;
}

.cyber-table tr:last-child td {
    border-bottom: none;
}

.cyber-table tr:hover {
    background: rgba(255, 255, 255, 0.015);
}

/* English Columns Styling (Playable) */
.english-cell {
    color: var(--text-primary);
    font-weight: 500;
    display: flex;
    justify-content: space-between;
    gap: 15px;
}

.cell-content {
    flex: 1;
}

.play-action-btn {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(69, 209, 159, 0.05);
    border: 1px solid rgba(69, 209, 159, 0.2);
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--accent-color);
}

.play-action-btn:hover {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: #121212;
    transform: scale(1.1);
}

.play-action-btn svg {
    width: 12px;
    height: 12px;
    fill: currentColor;
    margin-left: 2px; /* Center-align the triangle play button slightly */
}

/* Spanish Columns Styling */
.spanish-cell {
    color: var(--text-secondary);
    font-style: italic;
}

/* Width Constraints for Table Columns */
.cyber-table th:nth-child(1), .cyber-table td:nth-child(1) { width: 28%; }
.cyber-table th:nth-child(2), .cyber-table td:nth-child(2) { width: 22%; }
.cyber-table th:nth-child(3), .cyber-table td:nth-child(3) { width: 28%; }
.cyber-table th:nth-child(4), .cyber-table td:nth-child(4) { width: 22%; }

/* Modal overlay */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    padding: 20px;
}

.modal-content {
    max-width: 500px;
    width: 100%;
    padding: 30px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    animation: scaleIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes scaleIn {
    0% { transform: scale(0.95); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--accent-color);
}

.modal-close-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.7rem;
    cursor: pointer;
    transition: color 0.2s ease;
    line-height: 1;
}

.modal-close-btn:hover {
    color: var(--text-primary);
}

.modal-body {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 15px;
}

.success-icon {
    width: 60px;
    height: 60px;
    background: rgba(69, 209, 159, 0.1);
    border: 2px solid var(--accent-color);
    color: var(--accent-color);
    font-size: 2.2rem;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: bold;
    box-shadow: var(--border-glow);
}

.modal-main-text {
    font-weight: 600;
    font-size: 1rem;
}

.modal-sub-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.file-name-display {
    background: rgba(0, 0, 0, 0.3);
    border: 1px dashed var(--accent-color);
    color: var(--accent-color);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    padding: 8px 16px;
    border-radius: 6px;
    width: 100%;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
}

.small-btn {
    padding: 10px 20px;
    font-size: 0.85rem;
    flex: initial;
}

/* Footer Style */
.cyber-footer {
    border-top: 1px solid var(--muted-grey);
    padding-top: 20px;
    text-align: center;
    color: var(--text-label);
    font-size: 0.75rem;
    font-family: var(--font-mono);
}

/* Scrollbar Customization */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-color);
}

::-webkit-scrollbar-thumb {
    background: var(--muted-grey);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-color);
}

/* Responsive adjustments */
@media (max-width: 900px) {
    .controls-layout {
        gap: 15px;
    }
    
    .segmented-control {
        flex-direction: column;
        gap: 4px;
        background: transparent;
        border: none;
        padding: 0;
    }
    
    .segment-btn {
        border: 1px solid var(--muted-grey);
        border-radius: 8px;
    }
    
    .segmented-control input[type="radio"]:checked + .segment-btn {
        border-color: var(--accent-color);
    }
    
    .action-group {
        flex-direction: column;
    }
    
    .cyber-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
}