/* Neubrutalism Design System for COMP1531 Learning Guide */
/* Import neubrutalism system - adjust path based on file location */
@import url('../../../src/styles/neobrutalism-system.css');
@import url('../../../src/styles/neobrutalism-components.css');

/* Legacy variable mappings for backward compatibility */
:root {
    /* Map old EVAN variables to neubrutalism variables */
    --evan-primary: var(--nb-comp);
    --evan-secondary: var(--nb-accent-green);
    --evan-accent: var(--nb-premium);
    --evan-dark: var(--nb-text-primary);
    --evan-light: var(--nb-bg-light);
    --evan-gray: var(--nb-text-secondary);
    --evan-light-gray: var(--nb-border-gray);

    /* Typography */
    --evan-font-primary: var(--nb-font-primary);
    --evan-font-size-sm: var(--nb-text-sm);
    --evan-font-size-base: var(--nb-text-base);
    --evan-font-size-lg: var(--nb-text-lg);
    --evan-font-size-xl: var(--nb-text-xl);
    --evan-font-size-2xl: var(--nb-text-2xl);
    --evan-font-size-3xl: var(--nb-text-3xl);
    --evan-font-size-4xl: var(--nb-text-4xl);
    --evan-font-size-5xl: var(--nb-text-5xl);

    /* Spacing */
    --evan-spacing-xs: var(--nb-space-2);
    --evan-spacing-sm: var(--nb-space-3);
    --evan-spacing-md: var(--nb-space-4);
    --evan-spacing-lg: var(--nb-space-6);
    --evan-spacing-xl: var(--nb-space-8);
    --evan-spacing-2xl: var(--nb-space-12);

    /* Components - Neubrutalism overrides */
    --evan-border-radius: 0;
    --evan-border-radius-lg: 0;
    --evan-shadow-sm: var(--nb-shadow-sm);
    --evan-shadow: var(--nb-shadow-md);
    --evan-shadow-lg: var(--nb-shadow-lg);
}

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

body {
    font-family: var(--nb-font-primary);
    background-color: var(--nb-bg-light) !important;
    color: var(--nb-text-primary);
    line-height: var(--nb-leading-normal);
}

/* Bilingual content toggling */
.en-content, .zh-content {
    /* default visible; specific visibility controlled by body.lang-zh rules */
}
body.lang-zh .en-content { display: none; }
body.lang-zh .zh-content { display: inline; }
body:not(.lang-zh) .en-content { display: inline; }
body:not(.lang-zh) .zh-content { display: none; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Typography */
.text-4xl {
    font-size: var(--evan-font-size-4xl);
}

.md\:text-5xl {
    font-size: var(--evan-font-size-5xl);
}

.mt-6 {
    margin-top: var(--evan-spacing-xl);
}

.inline-block {
    display: inline-block;
}

/* Navigation */
.navbar {
    background-color: white;
    box-shadow: var(--evan-shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.navbar-brand {
    font-size: var(--evan-font-size-xl);
    font-weight: bold;
    color: var(--evan-primary);
    text-decoration: none;
}

.navbar-nav {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.navbar-nav a {
    color: var(--evan-dark);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.navbar-nav a:hover {
    color: var(--evan-primary);
}

/* Mobile menu toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--evan-dark);
}

/* Mobile navigation */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }

    .navbar-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: white;
        flex-direction: column;
        gap: 0;
        box-shadow: var(--evan-shadow);
        max-height: 70vh;
        overflow-y: auto;
    }

    .navbar-nav.active {
        display: flex;
    }

    .navbar-nav li {
        width: 100%;
    }

    .navbar-nav a {
        display: block;
        padding: 1rem;
        border-bottom: 1px solid var(--evan-light-gray);
    }

    .navbar-nav a:hover {
        background-color: var(--evan-light);
    }

    .navbar-content {
        position: relative;
    }
}

/* Cards */
.card {
    background-color: white;
    border-radius: var(--evan-border-radius);
    padding: var(--evan-spacing-lg);
    box-shadow: var(--evan-shadow);
    transition: transform 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
    margin-top: var(--evan-spacing-md);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--evan-shadow-lg);
}

.card-lg {
    border-radius: var(--evan-border-radius-lg);
    padding: var(--evan-spacing-xl);
    transition: all 0.3s ease-in-out;
    border: 2px solid transparent;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.card-lg:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 10px 10px -5px rgb(0 0 0 / 0.04);
    border-color: var(--evan-primary);
}

.card-lg p {
    flex-grow: 1;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background-color: var(--evan-primary);
    color: white;
    text-decoration: none;
    border-radius: var(--evan-border-radius);
    font-weight: 500;
    transition: background-color 0.3s ease;
}

.btn:hover {
    background-color: #d65a47;
}

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

.btn-secondary:hover {
    background-color: #6fa088;
}

/* Course Overview Cards */
.course-overview-card {
    background-color: #ffffff;
    border-radius: 0.75rem;
    padding: 2rem;
    box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    transition: all 0.3s ease-in-out;
    border: 2px solid transparent;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.course-overview-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 10px 10px -5px rgb(0 0 0 / 0.04);
    border-color: #e07a5f;
}

.course-overview-card p {
    flex-grow: 1;
}

/* Links */
.course-link {
    text-decoration: none;
    color: inherit;
}

/* Content Sections */
.content-section {
    margin-bottom: var(--evan-spacing-2xl);
}

.content-section h2 {
    color: var(--evan-primary);
    margin-bottom: var(--evan-spacing-lg);
    font-size: var(--evan-font-size-2xl);
}

.content-section h3 {
    color: var(--evan-dark);
    margin-bottom: var(--evan-spacing-md);
    font-size: var(--evan-font-size-xl);
}

/* Code Blocks */
.code-block {
    background-color: #f4f4f4;
    border: 1px solid var(--evan-light-gray);
    border-radius: var(--evan-border-radius);
    padding: var(--evan-spacing-lg);
    margin: var(--evan-spacing-md) 0;
    font-family: 'Courier New', monospace;
    overflow-x: auto;
}

.code-block pre {
    margin: 0;
    white-space: pre-wrap;
}

/* Lists */
.feature-list {
    list-style: none;
    padding-left: 0;
}

.feature-list li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--evan-light-gray);
}

.feature-list li:before {
    content: "▸ ";
    color: var(--evan-primary);
    font-weight: bold;
}

/* Responsive Design */
@media (max-width: 768px) {
    .grid {
        grid-template-columns: 1fr !important;
    }
}

/* Grid System */
.grid {
    display: grid;
    gap: 1.5rem;
}

.grid-cols-1 {
    grid-template-columns: repeat(1, minmax(0, 1fr));
}

.grid-cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.md\:grid-cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.md\:grid-cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mb-2 {
    margin-bottom: 0.5rem;
}

.mb-3 {
    margin-bottom: 0.75rem;
}

.mb-4 {
    margin-bottom: 1rem;
}

.mb-6 {
    margin-bottom: 1.5rem;
}

.mb-8 {
    margin-bottom: 2rem;
}

.mb-12 {
    margin-bottom: 3rem;
}

.mt-2 {
    margin-top: 0.5rem;
}

.mt-4 {
    margin-top: 1rem;
}

.text-lg {
    font-size: var(--evan-font-size-lg);
}

.text-sm {
    font-size: var(--evan-font-size-sm);
}

.font-bold {
    font-weight: bold;
}

.font-semibold {
    font-weight: 600;
}

.text-gray-600 {
    color: #666666;
}

.text-gray-500 {
    color: #999999;
}

.py-8 {
    padding-top: 2rem;
    padding-bottom: 2rem;
}

.md\:py-12 {
    padding-top: 3rem;
    padding-bottom: 3rem;
}

.px-4 {
    padding-left: 1rem;
    padding-right: 1rem;
}

.mx-auto {
    margin-left: auto;
    margin-right: auto;
}

/* Breadcrumb */
.breadcrumb {
    background-color: #f8f7f2;
    padding: 1rem 0;
    margin-bottom: 2rem;
}

.breadcrumb-list {
    list-style: none;
    display: flex;
    gap: 0.5rem;
}

.breadcrumb-list li {
    color: var(--evan-gray);
}

.breadcrumb-list a {
    color: var(--evan-primary);
    text-decoration: none;
}

.breadcrumb-list a:hover {
    text-decoration: underline;
}

/* Exercises Section */
.exercises {
    background-color: #f8f7f2;
    border-radius: var(--evan-border-radius);
    padding: var(--evan-spacing-lg);
    margin-top: var(--evan-spacing-xl);
}

.exercises h3 {
    color: var(--evan-primary);
    margin-bottom: var(--evan-spacing-md);
}

.exercises ul {
    list-style-type: none;
    padding-left: 0;
}

.exercises li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--evan-light-gray);
}

.exercises li:before {
    content: "📝 ";
    margin-right: 0.5rem;
}

/* Summary Section */
.summary {
    background-color: var(--evan-accent);
    border-radius: var(--evan-border-radius);
    padding: var(--evan-spacing-lg);
    margin-top: var(--evan-spacing-xl);
}

.summary h3 {
    color: var(--evan-dark);
    margin-bottom: var(--evan-spacing-md);
}

.summary ul {
    list-style-type: none;
    padding-left: 0;
}

.summary li {
    padding: 0.3rem 0;
}

.summary li:before {
    content: "✓ ";
    color: var(--evan-primary);
    font-weight: bold;
    margin-right: 0.5rem;
}

/* Language Switcher */
.language-switcher {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    background: white;
    border-radius: 25px;
    box-shadow: var(--evan-shadow);
    padding: 5px;
    display: flex;
    align-items: center;
    gap: 5px;
}

.language-switcher button {
    background: transparent;
    border: none;
    padding: 8px 16px;
    border-radius: 20px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
    font-size: 14px;
}

.language-switcher button.active {
    background: var(--evan-primary);
    color: white;
}

.language-switcher button:not(.active):hover {
    background: var(--evan-light-gray);
}

.lang-btn {
    padding: 0.5rem 1rem;
    border: 1px solid var(--evan-primary);
    background-color: transparent;
    color: var(--evan-primary);
    border-radius: 0.25rem;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s ease-in-out;
}

.lang-btn:hover {
    background-color: var(--evan-primary);
    color: white;
}

.lang-btn.active {
    background-color: var(--evan-primary);
    color: white;
}

/* Language attribute styling */
[lang="zh"] {
    font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'SimSun', sans-serif;
}

/* Hide translated content by default - show English by default */
.en-content {
    display: inline;
}

.zh-content {
    display: none;
}

/* Show Chinese content when language is switched to Chinese */
body.lang-zh .en-content {
    display: none;
}

body.lang-zh .zh-content {
    display: inline;
}

/* For block elements */
body.lang-zh .zh-content.block {
    display: block;
}

/* Responsive language switcher */
@media (max-width: 768px) {
    .language-switcher {
        position: relative;
        top: auto;
        right: auto;
        padding: 5px;
        margin-top: 0.5rem;
        z-index: 1;
    }

    .language-switcher button {
        padding: 6px 12px;
        font-size: 12px;
    }
}

/* Additional utility classes */
.text-xl {
    font-size: var(--evan-font-size-xl);
}

.text-2xl {
    font-size: var(--evan-font-size-2xl);
}

.text-3xl {
    font-size: var(--evan-font-size-3xl);
}

.gap-4 {
    gap: 1rem;
}

.gap-6 {
    gap: 1.5rem;
}

.items-center {
    align-items: center;
}

.flex {
    display: flex;
}

/* Back button styling */
.back-button {
    margin-bottom: 1.25rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border: 2px solid var(--evan-primary);
    padding: 0.6rem 1rem;
    border-radius: 0.5rem;
    text-decoration: none;
    color: var(--evan-primary);
    font-weight: 500;
    transition: all 0.3s ease;
}

.back-button:hover {
    background-color: var(--evan-primary);
    color: white;
    transform: translateX(-2px);
}

/* Color utility classes */
.text-\[#2c2c2c\] {
    color: var(--evan-dark);
}

.text-\[#e07a5f\] {
    color: var(--evan-primary);
}

.text-\[#81b29a\] {
    color: var(--evan-secondary);
}

.text-gray-700 {
    color: #4a4a4a;
}

/* Mermaid diagram styling */
.mermaid {
    text-align: center;
    margin: 2rem 0;
}

/* Additional responsive fixes */
@media (max-width: 768px) {
    .text-4xl {
        font-size: 2rem;
    }

    .md\:text-5xl {
        font-size: 2.5rem;
    }

    .container {
        padding: 0 0.5rem;
    }
}

/* Antialiased text */
.antialiased {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Dark Theme Support */
[data-theme='dark'] body {
    background-color: var(--evan-theme-bg) !important;
    color: var(--evan-theme-text) !important;
}

[data-theme='dark'] .navbar {
    background-color: var(--evan-theme-surface) !important;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3) !important;
}

[data-theme='dark'] .navbar-brand {
    color: var(--evan-theme-primary) !important;
}

[data-theme='dark'] .navbar-nav a {
    color: var(--evan-theme-text) !important;
}

[data-theme='dark'] .navbar-nav a:hover {
    color: var(--evan-theme-primary) !important;
}

[data-theme='dark'] .mobile-menu-toggle {
    color: var(--evan-theme-text) !important;
}

[data-theme='dark'] .navbar-nav {
    background-color: var(--evan-theme-surface) !important;
}

[data-theme='dark'] .navbar-nav a:hover {
    background-color: var(--evan-theme-surface-soft) !important;
}

[data-theme='dark'] .navbar-nav a {
    border-bottom-color: var(--evan-theme-border) !important;
}

[data-theme='dark'] .breadcrumb {
    background-color: var(--evan-theme-bg) !important;
}

[data-theme='dark'] .breadcrumb-list li {
    color: var(--evan-theme-heading) !important;
}

[data-theme='dark'] .breadcrumb-list a {
    color: var(--evan-theme-primary) !important;
}

[data-theme='dark'] .card {
    background-color: var(--evan-theme-surface) !important;
    color: var(--evan-theme-text) !important;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3) !important;
}

[data-theme='dark'] .card h3,
[data-theme='dark'] .card h4 {
    color: var(--evan-theme-heading) !important;
}

[data-theme='dark'] .card p {
    color: var(--evan-theme-text-muted) !important;
}

[data-theme='dark'] .text-\[#2c2c2c\] {
    color: var(--evan-theme-heading) !important;
}

[data-theme='dark'] .text-\[#e07a5f\] {
    color: var(--evan-theme-primary) !important;
}

[data-theme='dark'] .text-gray-700,
[data-theme='dark'] .text-gray-600,
[data-theme='dark'] .text-gray-500 {
    color: var(--evan-theme-text-muted) !important;
}

[data-theme='dark'] h1,
[data-theme='dark'] h2,
[data-theme='dark'] h3,
[data-theme='dark'] h4,
[data-theme='dark'] h5,
[data-theme='dark'] h6 {
    color: var(--evan-theme-heading) !important;
}