course/styles.css at main · kubedoio/course · GitHub

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/* ============================================
   Browser Linux + Docker Lab — Global Styles
   ============================================ */

:root {
    --bg-color: #0f172a;
    --sidebar-color: #1e293b;
    --accent-color: #38bdf8;
    --text-color: #f1f5f9;
    --text-muted: #94a3b8;
    --border-color: #334155;
    --card-bg: #334155;
    --success-bg: #064e3b;
    --success-text: #34d399;
    --warning-bg: #92400e;
    --warning-text: #fef3c7;
    --danger-bg: #7f1d1d;
    --danger-text: #fecaca;
    --btn-secondary-bg: #475569;
    --btn-secondary-text: #f1f5f9;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, Courier, monospace;
}

/* Reset & base */
*, *::before, *::after {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-color);
    overflow: hidden; /* no external scroll on body */
}

/* Capability warnings banner */
#capability-warnings {
    width: 100%;
}

.capability-warning {
    background: var(--warning-bg);
    color: var(--warning-text);
    padding: 10px 20px;
    font-size: 0.85rem;
    border-bottom: 1px solid var(--border-color);
}

.capability-warning strong {
    display: block;
    margin-bottom: 4px;
}

/* Main layout: full viewport, flex row */
.layout {
    display: flex;
    height: 100vh;
    width: 100vw;
    position: relative;
    transition: all 0.3s ease;
}

.layout.sidebar-collapsed .sidebar {
    width: 0;
    padding: 0;
    border-right: none;
    overflow: hidden;
}

.layout.sidebar-collapsed .sidebar > * {
    display: none;
}

/* Sidebar Toggle Button */
.sidebar-toggle {
    position: absolute;
    top: 12px;
    left: 12px;
    z-index: 100;
    background: var(--sidebar-color);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    border-radius: 6px;
    padding: 6px 10px;
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: left 0.3s ease;
}

.layout.sidebar-collapsed .sidebar-toggle {
    left: 12px;
}

.layout:not(.sidebar-collapsed) .sidebar-toggle {
    left: calc(var(--sidebar-width) - 42px);
}

/* ============================================
   Left Sidebar
   ============================================ */

.sidebar {
    width: var(--sidebar-width, 50vw);
    min-width: 360px;
    background-color: var(--sidebar-color);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: 18px;
    overflow: hidden;
    transition: width 0.3s ease, padding 0.3s ease;
    flex-shrink: 0;
}

.curriculum-container {
    display: grid;
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 0 18px;
    flex-grow: 1;
    min-height: 0;
}

.sidebar h2 {
    color: var(--accent-color);
    font-size: 1.25rem;
    margin: 0;
}

.sidebar-header {
    border-bottom: 1px solid var(--border-color);
    grid-column: 1 / -1;
    padding-bottom: 14px;
    margin-bottom: 14px;
}

.sidebar-header p {
    margin: 6px 0 0;
    color: var(--text-muted);
    font-size: 0.85rem;
    line-height: 1.4;
}

.course-tree {
    border-bottom: 0;
    border-right: 1px solid var(--border-color);
    margin: 0;
    min-height: 0;
    overflow-y: auto;
    padding: 0 12px 12px 0;
}

.course-tree-group {
    margin-bottom: 14px;
}

.course-tree-group h3 {
    margin: 0 0 8px;
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.4px;
    text-transform: uppercase;
}

.course-tree-group ol {
    list-style: none;
    padding: 0;
    margin: 0;
}

.course-tree-group li {
    margin: 0 0 4px;
}

.lesson-link {
    width: 100%;
    min-height: 34px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 6px;
    color: var(--text-muted);
    cursor: pointer;
    display: block;
    font-family: var(--font-family);
    font-size: 0.85rem;
    line-height: 1.25;
    padding: 8px 10px;
    text-align: left;
}

.lesson-link:hover {
    background: rgba(56, 189, 248, 0.08);
    color: var(--text-color);
}

.lesson-link:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
    border-radius: 6px;
}

.lesson-link.active {
    background: rgba(56, 189, 248, 0.14);
    border-color: rgba(56, 189, 248, 0.35);
    color: var(--accent-color);
}

.lesson-viewer {
    font-size: 0.9rem;
    line-height: 1.55;
    min-height: 0;
    overflow-y: auto;
    padding: 0 6px 28px 0;
}

.lesson-placeholder {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-muted);
    padding: 14px;
}

.lesson-header {
    margin-bottom: 18px;
}

.lesson-header h1 {
    color: var(--text-color);
    font-size: 1.15rem;
    line-height: 1.25;
    margin: 0 0 8px;
}

.lesson-header p {
    color: var(--text-muted);
    margin: 0;
}

.lesson-body h2,
.quiz-section h2 {
    color: var(--accent-color);
    font-size: 1rem;
    margin: 22px 0 10px;
}

.lesson-body h3 {
    color: var(--text-color);
    font-size: 0.95rem;
    margin: 18px 0 8px;
}

.lesson-body h4,
.lesson-body h5 {
    color: var(--text-color);
    font-size: 0.9rem;
    margin: 16px 0 8px;
}

.lesson-body p,
.lesson-body ul,
.lesson-body ol {
    color: var(--text-muted);
    margin: 0 0 12px;
}

.lesson-body ul,
.lesson-body ol {
    padding-left: 20px;
}

.lesson-body li {
    margin-bottom: 6px;
}

.lesson-body a {
    color: var(--accent-color);
}

.lesson-body code {
    background: #0f172a;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: #bae6fd;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    padding: 1px 5px;
}

.lesson-body blockquote {
    background: rgba(146, 64, 14, 0.35);
    border-left: 4px solid var(--warning-text);
    border-radius: 6px;
    color: var(--warning-text);
    margin: 14px 0;
    padding: 10px 12px;
}

.lesson-body blockquote p {
    color: inherit;
    margin: 0 0 8px;
}

.lesson-body blockquote p:last-child {
    margin-bottom: 0;
}

.command-block {
    background: #020617;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin: 14px 0;
    overflow: hidden;
}

.command-block-header {
    align-items: center;
    background: #111827;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-muted);
    display: flex;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    justify-content: space-between;
    min-height: 36px;
    padding: 6px 8px 6px 12px;
    text-transform: uppercase;
}

.command-actions {
    display: flex;
    gap: 6px;
}

.mini-btn {
    background: var(--btn-secondary-bg);
    border: 0;
    border-radius: 5px;
    color: var(--btn-secondary-text);
    cursor: pointer;
    font-family: var(--font-family);
    font-size: 0.72rem;
    font-weight: 700;
    min-width: 44px;
    padding: 5px 8px;
}

.mini-btn:hover {
    background: #64748b;
}

.mini-btn:disabled {
    cursor: default;
    opacity: 0.72;
}

.mini-btn-primary {
    background: var(--accent-color);
    color: #001018;
}

.mini-btn-primary:hover {
    background: #7dd3fc;
}

.command-block pre {
    margin: 0;
    max-height: 240px;
    overflow: auto;
    padding: 12px;
}

.command-block pre code {
    background: transparent;
    border: 0;
    color: var(--text-color);
    display: block;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    line-height: 1.55;
    padding: 0;
    white-space: pre;
}

.quiz-section {
    border-top: 1px solid var(--border-color);
    margin-top: 22px;
    padding-top: 6px;
}

.quiz-empty {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin: 0 0 16px;
}

.quiz-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 12px;
    padding: 12px;
}

.quiz-card h3 {
    font-size: 0.9rem;
    line-height: 1.35;
    margin: 0 0 10px;
}

.quiz-options {
    display: grid;
    gap: 8px;
    margin-bottom: 12px;
}

.quiz-option {
    align-items: flex-start;
    background: rgba(15, 23, 42, 0.65);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-color);
    cursor: pointer;
    display: flex;
    gap: 8px;
    line-height: 1.35;
    padding: 8px;
}

.quiz-option input {
    margin-top: 2px;
}

.quiz-check {
    color: #001018;
}

.quiz-feedback {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin: 10px 0 0;
}

.quiz-feedback.correct {
    color: var(--success-text);
}

.quiz-feedback.incorrect {
    color: var(--danger-text);
}

.course-group {
    margin-bottom: 14px;
}

.course-group-title {
    display: flex;
    flex-direction: column;
    width: 100%;
    background: transparent;
    border: 0;
    color: var(--text-muted);
    cursor: pointer;
    font-family: var(--font-family);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.4px;
    margin: 0 0 12px;
    padding: 0;
    text-align: left;
    text-transform: uppercase;
}

.course-progress-container {
    width: 100%;
    height: 4px;
    background: var(--border-color);
    border-radius: 2px;
    margin-top: 6px;
    overflow: hidden;
}

.course-progress-bar {
    height: 100%;
    background: var(--success-text);
    transition: width 0.4s ease;
}

.course-group-title small {
    color: var(--text-muted);
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0;
    text-transform: none;
    margin-top: 4px;
}

.lesson-link.is-completed .lesson-state {
    background: var(--success-bg);
    border-color: var(--success-text);
    color: var(--success-text);
    box-shadow: 0 0 8px rgba(52, 211, 153, 0.2);
}

.curriculum-section {
    margin-bottom: 12px;
}

.curriculum-section-title {
    color: var(--text-color);
    font-size: 0.75rem;
    font-weight: 700;
    margin-bottom: 6px;
    padding: 0 4px;
    opacity: 0.8;
}

.curriculum-section-lessons {
    display: grid;
    gap: 4px;
    padding-left: 8px;
    border-left: 1px solid var(--border-color);
    margin-left: 4px;
}

.lesson-link {
    align-items: center;
    display: grid;
    gap: 8px;
    grid-template-columns: 22px minmax(0, 1fr);
}

.lesson-state {
    align-items: center;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    color: var(--text-muted);
    display: inline-flex;
    font-size: 0.68rem;
    font-weight: 800;
    height: 20px;
    justify-content: center;
    line-height: 1;
    width: 20px;
}

.lesson-copy {
    min-width: 0;
}

.lesson-title-text {
    display: block;
}

.lesson-link.is-completed .lesson-state {
    background: var(--success-bg);
    border-color: rgba(52, 211, 153, 0.55);
    color: var(--success-text);
}

.lesson-link.is-completed .lesson-title-text {
    color: var(--text-color);
}

.lesson-link.is-in-progress .lesson-state {
    background: rgba(56, 189, 248, 0.14);
    border-color: rgba(56, 189, 248, 0.45);
    color: var(--accent-color);
}

.lesson-link small {
    display: block;
    color: var(--text-muted);
    font-size: 0.7rem;
    margin-top: 3px;
}

.lesson-progress-panel {
    align-items: center;
    background: rgba(15, 23, 42, 0.7);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    display: flex;
    gap: 12px;
    justify-content: space-between;
    margin-bottom: 12px;
    padding: 12px;
}

.lesson-progress-panel strong {
    color: var(--text-color);
    display: block;
    font-size: 0.94rem;
    line-height: 1.3;
}

.lesson-progress-panel span {
    color: var(--text-muted);
    display: block;
    font-size: 0.78rem;
    margin-top: 3px;
}

.lesson-progress-panel .btn {
    flex: 0 0 auto;
}

.lesson-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 12px;
}

.lesson-meta span {
    background: var(--card-bg);
    border-radius: 999px;
    color: var(--text-muted);
    font-size: 0.72rem;
    padding: 4px 9px;
}

.lesson-note,
.course-error,
.lesson-loading {
    background: var(--warning-bg);
    border-radius: 6px;
    color: var(--warning-text);
    font-size: 0.84rem;
    line-height: 1.4;
    margin-bottom: 12px;
    padding: 10px 12px;
}

.course-error {
    background: var(--danger-bg);
    color: var(--danger-text);
}

.lesson-loading {
    background: var(--card-bg);
    color: var(--text-muted);
}

.lesson-viewer h2,
.quiz-panel h2 {
    color: var(--accent-color);
    font-size: 1rem;
    margin: 22px 0 10px;
}

.lesson-viewer h3 {
    color: var(--text-color);
    font-size: 0.95rem;
    margin: 18px 0 8px;
}

.lesson-viewer p,
.lesson-viewer li {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.55;
}

.lesson-viewer ul {
    padding-left: 20px;
}

.lesson-viewer p code,
.lesson-viewer li code {
    background: #0f172a;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: #bae6fd;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    padding: 1px 5px;
}

.code-block {
    background: #020617;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin: 14px 0;
    overflow: hidden;
}

.code-toolbar {
    align-items: center;
    background: #111827;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-muted);
    display: flex;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    justify-content: space-between;
    min-height: 36px;
    padding: 6px 8px 6px 12px;
    text-transform: uppercase;
}

.code-toolbar div {
    display: flex;
    gap: 6px;
}

.code-action {
    background: var(--btn-secondary-bg);
    border: 0;
    border-radius: 5px;
    color: var(--btn-secondary-text);
    cursor: pointer;
    font-family: var(--font-family);
    font-size: 0.72rem;
    font-weight: 700;
    min-width: 44px;
    padding: 5px 8px;
    text-transform: none;
}

.code-action.run {
    background: var(--accent-color);
    color: #001018;
}

.code-block pre {
    margin: 0;
    max-height: 240px;
    overflow: auto;
    padding: 12px;
}

.code-block pre code {
    background: transparent;
    border: 0;
    color: var(--text-color);
    display: block;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    line-height: 1.55;
    padding: 0;
    white-space: pre;
}

.quiz-panel {
    border-top: 1px solid var(--border-color);
    margin-top: 22px;
    padding-top: 6px;
}

.quiz-choice {
    align-items: flex-start;
    background: rgba(15, 23, 42, 0.65);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-color);
    cursor: pointer;
    display: flex;
    gap: 8px;
    line-height: 1.35;
    margin: 8px 0;
    padding: 8px;
}

.quiz-choice input {
    margin-top: 2px;
}

.quiz-result {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin: 10px 0 0;
}

.quiz-result.is-correct {
    color: var(--success-text);
}

.quiz-result.is-wrong {
    color: var(--danger-text);
}

.quiz-result.is-warning {
    color: var(--warning-text);
}

.lesson-card {
    background: var(--card-bg);
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 0.9rem;
    line-height: 1.5;
}

.lesson-card h3 {
    margin: 0 0 8px 0;
    font-size: 1rem;
    color: var(--accent-color);
}

.lesson-card p {
    margin: 0;
    color: var(--text-muted);
}

.command-checklist {
    margin-bottom: 16px;
}

.command-checklist h4 {
    margin: 0 0 10px 0;
    font-size: 0.95rem;
    color: var(--text-color);
}

.command-checklist ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.command-checklist li {
    background: var(--card-bg);
    padding: 8px 10px;
    border-radius: 6px;
    margin-bottom: 6px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-color);
    word-break: break-all;
}

.warning-note {
    background: var(--warning-bg);
    color: var(--warning-text);
    padding: 12px;
    border-radius: 8px;
    font-size: 0.85rem;
    line-height: 1.4;
}

/* ============================================
   Right Main Content
   ============================================ */

.main-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

/* Header */
header {
    min-height: 50px;
    height: auto;
    background: var(--sidebar-color);
    display: flex;
    align-items: center;
    padding: 8px 12px;
    border-bottom: 1px solid var(--border-color);
    justify-content: space-between;
    flex-shrink: 0;
}

.product-name {
    font-weight: 700;
    font-size: 1rem;
    color: var(--text-color);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.status-pill {
    background: var(--card-bg);
    color: var(--text-muted);
    padding: 5px 14px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    transition: background-color 0.2s, color 0.2s;
    white-space: nowrap;
}

.status-pill.state-not_booted {
    background: var(--card-bg);
    color: var(--text-muted);
}

.status-pill.state-booting {
    background: var(--warning-bg);
    color: var(--warning-text);
}

.status-pill.state-alpine_ready {
    background: #1e3a8a;
    color: #93c5fd;
}

.status-pill.state-docker_ready {
    background: var(--success-bg);
    color: var(--success-text);
}

.status-pill.state-network_online {
    background: var(--success-bg);
    color: var(--success-text);
}

.status-pill.state-error {
    background: var(--danger-bg);
    color: var(--danger-text);
}

.header-buttons {
    display: flex;
    gap: 8px;
}

.btn {
    background: var(--accent-color);
    color: #000;
    border: none;
    padding: 6px 10px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.8rem;
    cursor: pointer;
    transition: background-color 0.15s, opacity 0.15s;
    font-family: var(--font-family);
}

.btn:hover {
    background: #7dd3fc;
}

.btn:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

.btn-danger {
    background: var(--danger-bg);
    color: var(--danger-text);
    border: 1px solid rgba(248, 113, 113, 0.35);
}

.btn-danger:hover {
    background: #991b1b;
}

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

.btn-secondary {
    background: var(--btn-secondary-bg);
    color: var(--btn-secondary-text);
}

.btn-success {
    background: var(--success-bg);
    color: var(--success-text);
    border: 1px solid var(--success-text);
}

.verify-block {
    background: rgba(56, 189, 248, 0.05);
    border: 1px solid var(--accent-color);
    border-radius: 8px;
    margin: 20px 0;
    overflow: hidden;
}

.verify-header {
    background: rgba(56, 189, 248, 0.1);
    color: var(--accent-color);
    padding: 8px 12px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}