/**
 * LINUXENIC LMS - Frontend Styles
 * Design: Black + Yellow, No border-radius, Sharp corners
 */

:root {
    --lnx-bg-dark: #0a0a0a;
    --lnx-bg-medium: #111111;
    --lnx-bg-light: #1a1a1a;
    --lnx-primary: #f1ea39;
    --lnx-primary-hover: #d4cd32;
    --lnx-success: #00ff00;
    --lnx-danger: #ff4444;
    --lnx-warning: #ffaa00;
    --lnx-text: #ffffff;
    --lnx-text-muted: #888888;
    --lnx-border: #333333;
    --lnx-border-highlight: #f1ea39;
}

/* Base */
.lnx-error {
    color: var(--lnx-danger);
    padding: 15px;
    background: rgba(255, 68, 68, 0.1);
    border: 2px solid var(--lnx-danger);
}

/* Room Header */
.lnx-room-header {
    background: var(--lnx-bg-medium);
    border: 2px solid var(--lnx-border-highlight);
    padding: 25px;
    margin-bottom: 30px;
}

.lnx-room-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--lnx-primary);
    margin: 0 0 15px 0;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.lnx-room-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    align-items: center;
    margin-bottom: 20px;
}

.lnx-room-points {
    font-size: 18px;
    color: var(--lnx-primary);
    font-weight: 600;
}

.lnx-room-points::before {
    content: "★ ";
}

/* Progress Bar */
.lnx-progress-wrap {
    margin-top: 20px;
}

.lnx-progress-label {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--lnx-text-muted);
}

.lnx-progress-bar {
    height: 8px;
    background: var(--lnx-bg-dark);
    border: 1px solid var(--lnx-border);
    overflow: hidden;
}

.lnx-progress-fill {
    height: 100%;
    background: var(--lnx-primary);
    transition: width 0.3s ease;
}

.lnx-progress-fill.completed {
    background: var(--lnx-success);
}

/* Badges */
.lnx-badge {
    display: inline-block;
    padding: 4px 10px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: 1px solid;
}

.lnx-badge-newbie {
    background: rgba(0, 255, 0, 0.1);
    border-color: #00ff00;
    color: #00ff00;
}

.lnx-badge-admin {
    background: rgba(241, 234, 57, 0.1);
    border-color: var(--lnx-primary);
    color: var(--lnx-primary);
}

.lnx-badge-engineer {
    background: rgba(255, 170, 0, 0.1);
    border-color: var(--lnx-warning);
    color: var(--lnx-warning);
}

.lnx-badge-unidentified {
    background: rgba(255, 68, 68, 0.1);
    border-color: var(--lnx-danger);
    color: var(--lnx-danger);
}

.lnx-badge-lab {
    background: rgba(0, 150, 255, 0.1);
    border-color: #0096ff;
    color: #0096ff;
}

.lnx-badge-aws {
    background: rgba(255, 153, 0, 0.1);
    border-color: #ff9900;
    color: #ff9900;
}

/* Task Box */
.lnx-task {
    background: var(--lnx-bg-medium);
    border: 2px solid var(--lnx-border);
    margin-bottom: 20px;
    transition: border-color 0.3s ease;
}

.lnx-task.completed {
    border-color: var(--lnx-success);
}

.lnx-task-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 20px;
    background: var(--lnx-bg-light);
    cursor: pointer;
    user-select: none;
    min-height: 60px;
}

.lnx-task-header:hover {
    background: var(--lnx-bg-dark);
}

.lnx-task-title {
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--lnx-text);
    margin: 0;
    line-height: 1;
    display: flex;
    align-items: center;
}

.lnx-task-status {
    display: flex;
    align-items: center;
    gap: 10px;
}

.lnx-task-check {
    width: 24px;
    height: 24px;
    border: 2px solid var(--lnx-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.lnx-task-check.done {
    background: var(--lnx-success);
    border-color: var(--lnx-success);
    color: #000;
}

.lnx-task-toggle {
    font-size: 18px;
    color: var(--lnx-text-muted);
    transition: transform 0.3s ease;
}

.lnx-task.expanded .lnx-task-toggle {
    transform: rotate(180deg);
}

.lnx-task-content {
    padding: 20px;
    display: none;
    border-top: 1px solid var(--lnx-border);
}

.lnx-task.expanded .lnx-task-content {
    display: block;
}

/* Questions */
.lnx-question {
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--lnx-border);
}

.lnx-question:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.lnx-question-text {
    font-size: 15px;
    font-weight: 600;
    color: var(--lnx-text);
    margin-bottom: 16px;
    line-height: 1.5;
}

.lnx-question-form {
    display: flex;
    gap: 12px;
    align-items: stretch;
}

.lnx-question-input {
    flex: 1;
    background: var(--lnx-bg-dark);
    border: 2px solid var(--lnx-border);
    padding: 14px 18px;
    color: var(--lnx-text-muted);
    font-family: 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.4;
    outline: none;
    transition: all 0.3s ease;
}

.lnx-question-input::placeholder {
    color: var(--lnx-text-muted);
    opacity: 0.5;
}

.lnx-question-input:focus {
    border-color: var(--lnx-primary);
    color: var(--lnx-text);
}

.lnx-question-input.correct {
    border-color: var(--lnx-success);
    background: rgba(0, 255, 0, 0.05);
    color: var(--lnx-text-muted);
}

.lnx-question-input.incorrect {
    border-color: var(--lnx-danger);
}

.lnx-question-input:disabled {
    opacity: 0.8;
    cursor: not-allowed;
}

/* Buttons */
.lnx-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 24px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    border: 2px solid;
    transition: all 0.3s ease;
    font-family: inherit;
    white-space: nowrap;
}

.lnx-btn-primary {
    background: var(--lnx-primary);
    border-color: var(--lnx-primary);
    color: #000;
}

.lnx-btn-primary:hover {
    background: transparent;
    color: var(--lnx-primary);
}

.lnx-btn-secondary {
    background: transparent;
    border-color: var(--lnx-border);
    color: var(--lnx-text);
}

.lnx-btn-secondary:hover {
    border-color: var(--lnx-primary);
    color: var(--lnx-primary);
}

.lnx-btn-success {
    background: var(--lnx-success);
    border-color: var(--lnx-success);
    color: #000;
}

.lnx-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Answer Status */
.lnx-answer-status {
    display: flex;
    align-items: center;
    margin-top: 12px;
    padding: 12px 18px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

.lnx-answer-status.correct {
    background: rgba(0, 255, 0, 0.1);
    border: 2px solid var(--lnx-success);
    color: var(--lnx-success);
}

.lnx-answer-status.correct::before {
    content: "✓";
    margin-right: 10px;
    font-size: 14px;
}

.lnx-answer-status.incorrect {
    background: rgba(255, 68, 68, 0.1);
    border: 2px solid var(--lnx-danger);
    color: var(--lnx-danger);
}

.lnx-answer-status.incorrect::before {
    content: "✗";
    margin-right: 10px;
    font-size: 14px;
}

/* Flag Box */
.lnx-flag-box {
    background: var(--lnx-bg-light);
    border: 2px solid var(--lnx-border-highlight);
    padding: 24px;
    margin-top: 24px;
}

.lnx-flag-title {
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--lnx-primary);
    margin-bottom: 18px;
}

.lnx-flag-form {
    display: flex;
    gap: 12px;
    align-items: stretch;
}

.lnx-flag-input {
    flex: 1;
    background: var(--lnx-bg-dark);
    border: 2px solid var(--lnx-border);
    padding: 14px 18px;
    color: var(--lnx-text-muted);
    font-family: 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.4;
    outline: none;
    transition: all 0.3s ease;
}

.lnx-flag-input:focus {
    border-color: var(--lnx-primary);
    color: var(--lnx-text);
}

.lnx-flag-input.correct {
    border-color: var(--lnx-success);
    background: rgba(0, 255, 0, 0.05);
    color: var(--lnx-text-muted);
}

.lnx-flag-input::placeholder {
    color: var(--lnx-text-muted);
    opacity: 0.5;
}

.lnx-flag-input:disabled {
    opacity: 0.8;
    cursor: not-allowed;
}

/* Lab Button */
.lnx-lab-btn {
    display: inline-block;
    margin-bottom: 20px;
}

/* Upgrade Notice */
.lnx-upgrade-notice {
    background: var(--lnx-bg-medium);
    border: 2px solid var(--lnx-primary);
    padding: 40px;
    text-align: center;
}

.lnx-upgrade-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.lnx-upgrade-notice h3 {
    font-size: 24px;
    color: var(--lnx-primary);
    margin-bottom: 15px;
}

.lnx-upgrade-notice p {
    color: var(--lnx-text-muted);
    margin-bottom: 25px;
}

/* Leaderboard */
.lnx-leaderboard {
    background: var(--lnx-bg-medium);
    border: 2px solid var(--lnx-border-highlight);
    max-width: 800px;
}

.lnx-leaderboard-header {
    background: var(--lnx-bg-light);
    padding: 20px 30px;
    border-bottom: 2px solid var(--lnx-border);
}

.lnx-leaderboard-title {
    font-size: 18px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--lnx-primary);
    margin: 0;
}

.lnx-leaderboard-table {
    width: 100%;
    border-collapse: collapse;
    table-layout: fixed;
}

.lnx-leaderboard-table th,
.lnx-leaderboard-table td {
    padding: 16px 20px;
    border-bottom: 1px solid var(--lnx-border);
    vertical-align: middle;
}

.lnx-leaderboard-table th {
    background: var(--lnx-bg-dark);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--lnx-text-muted);
}

.lnx-leaderboard-table th:nth-child(1) {
    width: 80px;
    text-align: center;
}

.lnx-leaderboard-table th:nth-child(2) {
    width: auto;
    text-align: left;
}

.lnx-leaderboard-table th:nth-child(3) {
    width: 120px;
    text-align: center;
}

.lnx-leaderboard-table th:nth-child(4) {
    width: 100px;
    text-align: center;
}

.lnx-leaderboard-table td {
    font-size: 14px;
}

.lnx-leaderboard-table td:nth-child(1) {
    text-align: center;
}

.lnx-leaderboard-table td:nth-child(3),
.lnx-leaderboard-table td:nth-child(4) {
    text-align: center;
}

.lnx-leaderboard-table tbody tr {
    transition: background 0.2s ease;
}

.lnx-leaderboard-table tbody tr:hover {
    background: var(--lnx-bg-light);
}

.lnx-leaderboard-table tbody tr:last-child td {
    border-bottom: none;
}

.lnx-rank {
    font-weight: 700;
    font-size: 16px;
    display: inline-block;
    min-width: 40px;
}

.lnx-rank-1 { 
    color: #ffd700;
    text-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
}

.lnx-rank-2 { 
    color: #c0c0c0;
}

.lnx-rank-3 { 
    color: #cd7f32;
}

.lnx-rank-default {
    color: var(--lnx-text-muted);
}

.lnx-username {
    font-weight: 600;
    color: var(--lnx-text);
}

.lnx-points {
    color: var(--lnx-primary);
    font-weight: 700;
    font-family: 'Courier New', monospace;
    font-size: 15px;
}

.lnx-rooms {
    color: var(--lnx-text-muted);
}

/* My Progress */
.lnx-my-progress {
    background: var(--lnx-bg-medium);
    border: 2px solid var(--lnx-border-highlight);
}

.lnx-my-progress-header {
    background: var(--lnx-bg-light);
    padding: 20px 25px;
    border-bottom: 2px solid var(--lnx-border);
}

.lnx-path-section {
    padding: 20px 25px;
    border-bottom: 1px solid var(--lnx-border);
}

.lnx-path-section:last-child {
    border-bottom: none;
}

.lnx-path-name {
    font-size: 16px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--lnx-primary);
    margin-bottom: 15px;
}

.lnx-room-list {
    display: grid;
    gap: 10px;
}

.lnx-room-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 15px;
    background: var(--lnx-bg-dark);
    border: 1px solid var(--lnx-border);
}

.lnx-room-item.completed {
    border-color: var(--lnx-success);
}

.lnx-room-item-title {
    font-size: 14px;
}

.lnx-room-item-status {
    display: flex;
    align-items: center;
    gap: 10px;
}

.lnx-room-item-points {
    color: var(--lnx-primary);
    font-weight: 600;
    font-size: 12px;
}

/* Loading */
.lnx-loading {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--lnx-border);
    border-top-color: var(--lnx-primary);
    animation: lnx-spin 0.8s linear infinite;
}

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

/* Responsive */
@media (max-width: 768px) {
    .lnx-room-meta {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .lnx-question-form {
        flex-direction: column;
    }
    
    .lnx-flag-form {
        flex-direction: column;
    }
    
    .lnx-leaderboard-table th,
    .lnx-leaderboard-table td {
        padding: 10px 12px;
        font-size: 12px;
    }
}