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

:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #f093fb;
    --text-dark: #2d3748;
    --text-light: #718096;
    --background: #f7fafc;
    --white: #ffffff;
    --border: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --gradient: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    --gradient-accent: linear-gradient(135deg, var(--accent-color), var(--primary-color));
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background: var(--background);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background: var(--gradient);
    color: var(--white);
    padding: 1rem 0;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo i {
    color: var(--accent-color);
}

.nav {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    transition: opacity 0.2s;
    position: relative;
}

.nav-link:hover {
    opacity: 0.8;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background: var(--accent-color);
    transition: width 0.3s;
}

.nav-link:hover::after {
    width: 100%;
}

/* Main Content */
.main {
    padding: 2rem 0;
}

.section {
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-title i {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.content-area {
    background: var(--white);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

/* Forms */
.add-item-form {
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border);
}

.input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.2s;
    margin-bottom: 1rem;
}

.input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.textarea {
    min-height: 120px;
    resize: vertical;
    font-family: inherit;
}

.select {
    background: var(--white);
    cursor: pointer;
}

.stock-input-group,
.teach-input-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}

.ticker-input {
    text-transform: uppercase;
}

.btn {
    background: var(--gradient);
    color: var(--white);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-primary {
    background: var(--gradient);
}

/* Items List */
.items-list {
    display: grid;
    gap: 1rem;
}

.item {
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.5rem;
    transition: all 0.2s;
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.item-content {
    flex: 1;
}

.item h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.item p {
    color: var(--text-light);
    line-height: 1.5;
}

.btn-remove {
    background: #fed7d7;
    color: #e53e3e;
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    margin-left: 1rem;
}

.btn-remove:hover {
    background: #feb2b2;
    transform: scale(1.1);
}

/* Stock Items */
.stock-item .item-content {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.stock-ticker {
    background: var(--gradient);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-weight: 700;
    font-size: 0.875rem;
    align-self: flex-start;
}

.acronym {
    font-style: italic;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 600;
}

/* Lesson Items */
.lesson-item .item-content {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.lesson-category {
    background: var(--gradient-accent);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.875rem;
    align-self: flex-start;
}

/* Joke Skeletons Styles */
.joke-templates {
    margin-bottom: 3rem;
}

.template-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.template-card {
    background: var(--white);
    border: 2px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.template-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient);
}

.template-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.template-card h3 {
    color: var(--text-dark);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.template-card h3 i {
    color: var(--primary-color);
}

.template-description {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 1rem;
    font-style: italic;
}

.example {
    background: var(--background);
    border-left: 4px solid var(--accent-color);
    padding: 1rem;
    margin-bottom: 1.5rem;
    border-radius: 0 8px 8px 0;
    font-size: 0.9rem;
}

.example strong {
    color: var(--primary-color);
}

.joke-form {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.joke-input {
    margin-bottom: 0 !important;
}

.btn-joke {
    background: var(--gradient-accent);
    transition: all 0.2s;
}

.btn-joke:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.generated-jokes-section {
    border-top: 2px solid var(--border);
    padding-top: 2rem;
}

.generated-jokes-section h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.joke-item {
    background: linear-gradient(135deg, #fff5f5 0%, #fffaf0 100%);
    border-left: 4px solid var(--accent-color);
}

.joke-item .item-content {
    flex: 1;
}

.joke-category {
    background: var(--gradient-accent);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    display: inline-block;
}

.joke-text {
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--text-dark);
    font-style: italic;
    margin: 0;
}

.btn-copy {
    background: #e6fffa;
    color: #047857;
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    margin-left: 0.5rem;
    margin-right: 0.5rem;
}

.btn-copy:hover {
    background: #ccfbf1;
    transform: scale(1.1);
}

.btn-copy.copied {
    background: #047857;
    color: white;
}

/* Responsive adjustments for jokes */
@media (max-width: 768px) {
    .template-grid {
        grid-template-columns: 1fr;
    }
    
    .template-card {
        padding: 1rem;
    }

    .joke-item {
        flex-direction: column;
        gap: 1rem;
    }

    .joke-item .item-content {
        margin-bottom: 0;
    }

    .btn-copy, .btn-remove {
        align-self: flex-end;
        margin: 0;
    }
}

/* Adam Sandler Movies Styles */
.movie-input-group {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

.movie-item {
    background: linear-gradient(135deg, #fff8e1 0%, #ffecb3 100%);
    border-left: 4px solid #ff9800;
    position: relative;
}

.movie-item::before {
    content: '🎬';
    position: absolute;
    top: 1rem;
    right: 4rem;
    font-size: 1.5rem;
    opacity: 0.2;
}

.movie-year {
    background: linear-gradient(135deg, #ff9800, #ff5722);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-weight: 700;
    font-size: 0.875rem;
    display: inline-block;
    margin-bottom: 0.75rem;
}

.movie-item h4 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    color: #e65100;
}

.movie-item h4 i {
    color: #ff9800;
}

.movie-rating {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
}

.movie-item p {
    color: #bf360c;
    line-height: 1.6;
    font-style: italic;
}

/* Responsive adjustments for movies */
@media (max-width: 768px) {
    .movie-input-group {
        grid-template-columns: 1fr;
    }
    
    .movie-item::before {
        display: none;
    }
}

/* Adam Sandler Movie Items */
.sandler-input-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

.sandler-item {
    background: linear-gradient(135deg, #fff8dc 0%, #ffe4b5 100%);
    border-left: 4px solid #ff6b6b;
}

.sandler-item h4 {
    color: #d63031;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0;
}

.sandler-item h4 i {
    color: #ff6b6b;
}

/* Responsive adjustments for Sandler movies */
@media (max-width: 768px) {
    .sandler-input-group {
        grid-template-columns: 1fr;
    }
}

/* Song Titles Styles */
.song-input-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}

.song-item {
    background: linear-gradient(135deg, #f3e7ff 0%, #e8f5e8 100%);
    border-left: 4px solid #9c27b0;
    position: relative;
    overflow: hidden;
}

.song-item::before {
    content: '♪';
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 2rem;
    color: rgba(156, 39, 176, 0.1);
    font-weight: bold;
}

.song-item h4 {
    color: #6a1b9a;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.song-item h4 i {
    color: #9c27b0;
}

.song-genre {
    background: linear-gradient(135deg, #9c27b0, #673ab7);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    display: inline-block;
}

.song-artist {
    font-size: 0.9rem;
    color: #8e24aa;
    font-weight: 600;
    font-style: italic;
    margin-bottom: 0.75rem;
}

.song-item p {
    color: var(--text-dark);
    line-height: 1.5;
    font-style: italic;
    margin: 0;
}

/* Different genre colors */
.song-item:has(.song-genre:contains("Rock")) {
    border-left-color: #f44336;
    background: linear-gradient(135deg, #ffebee 0%, #fce4ec 100%);
}

.song-item:has(.song-genre:contains("Hip Hop")) {
    border-left-color: #ff9800;
    background: linear-gradient(135deg, #fff3e0 0%, #fce4ec 100%);
}

.song-item:has(.song-genre:contains("Country")) {
    border-left-color: #8bc34a;
    background: linear-gradient(135deg, #f1f8e9 0%, #e8f5e8 100%);
}

.song-item:has(.song-genre:contains("Jazz")) {
    border-left-color: #3f51b5;
    background: linear-gradient(135deg, #e8eaf6 0%, #f3e5f5 100%);
}

/* Responsive adjustments for songs */
@media (max-width: 768px) {
    .song-input-group {
        grid-template-columns: 1fr;
    }
    
    .song-item::before {
        font-size: 1.5rem;
        top: 5px;
        right: 10px;
    }
}

/* Teaching Hub Tabs */
.teaching-tabs {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    border-bottom: 2px solid var(--border);
}

.tab-button {
    background: none;
    border: none;
    padding: 1rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    color: var(--text-light);
    transition: all 0.3s ease;
    border-bottom: 3px solid transparent;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tab-button:hover {
    color: var(--primary-color);
}

.tab-button.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.tab-content {
    display: none;
}

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

.course-input-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}

.teaching-lists {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

/* Course Items */
.course-item {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border-left: 4px solid var(--primary-color);
}

.course-category {
    background: var(--gradient);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.875rem;
    align-self: flex-start;
    margin-bottom: 0.75rem;
    display: inline-block;
}

.course-item h4 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.course-item h4 i {
    color: var(--primary-color);
}

.course-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--gradient);
    color: var(--white);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.9rem;
    margin-top: 1rem;
    transition: all 0.2s ease;
    width: fit-content;
}

.course-link:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.course-link i {
    font-size: 0.8rem;
}

/* Responsive adjustments for teaching tabs */
@media (max-width: 768px) {
    .teaching-tabs {
        flex-direction: column;
        gap: 0;
    }
    
    .tab-button {
        padding: 0.75rem 1rem;
        border-bottom: none;
        border-right: 3px solid transparent;
    }
    
    .tab-button.active {
        border-bottom: none;
        border-right-color: var(--primary-color);
        background: var(--background);
    }
    
    .course-input-group {
        grid-template-columns: 1fr;
    }
}

/* Footer */
.footer {
    background: var(--gradient);
    color: var(--white);
    text-align: center;
    padding: 2rem 0;
    margin-top: 4rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: 1rem;
    }

    .nav {
        gap: 1rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .content-area {
        padding: 1.5rem;
    }

    .stock-input-group,
    .teach-input-group {
        grid-template-columns: 1fr;
    }

    .item {
        flex-direction: column;
        gap: 1rem;
    }

    .btn-remove {
        align-self: flex-end;
        margin-left: 0;
    }
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

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

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

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

/* Animation for new items */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.item.new-item {
    animation: slideIn 0.3s ease-out;
}