:root {
    --primary-color: #6366f1;
    --secondary-color: #4f46e5;
    --accent-color: #f43f5e;
    --background-color: #f8fafc;
    --text-color: #1e293b;
    --border-radius: 12px;
    --box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --transition-speed: 0.3s;
}

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

body {
    font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
    padding: 0.75rem 1.5rem;
    background: rgba(255, 255, 255, 0.9);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    backdrop-filter: blur(8px);
    position: sticky;
    top: 1rem;
    z-index: 100;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.wheel-logo {
    width: 32px;
    height: 32px;
    object-fit: contain;
    filter: drop-shadow(0 2px 4px rgba(99, 102, 241, 0.2));
    transition: transform var(--transition-speed);
}

.logo-container:hover .wheel-logo {
    transform: rotate(15deg);
}

h1 {
    color: var(--primary-color);
    font-size: 1.75rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin: 0;
}

.help-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-speed);
    box-shadow: 0 4px 6px rgba(99, 102, 241, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    line-height: 1;
}

.help-btn:hover {
    transform: translateY(-2px);
    background: var(--secondary-color);
    box-shadow: 0 6px 8px rgba(99, 102, 241, 0.3);
}

.help-btn:active {
    transform: translateY(0);
}

main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: start;
}

.wheel-container {
    position: relative;
    aspect-ratio: 1;
    max-width: 500px;
    margin: 0 auto;
    background: white;
    padding: 1rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

#wheelCanvas {
    width: 100%;
    height: 100%;
    border-radius: 50%;
}

.wheel-pointer {
    position: absolute;
    top: 50%;
    right: -20px;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-top: 20px solid transparent;
    border-bottom: 20px solid transparent;
    border-left: 40px solid var(--accent-color);
    filter: drop-shadow(2px 2px 2px rgba(0, 0, 0, 0.2));
}

.controls {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.input-group {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

input[type="text"] {
    flex: 1;
    padding: 1rem;
    border: 2px solid #e2e8f0;
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: all var(--transition-speed);
}

input[type="text"]:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

button {
    padding: 1rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-speed);
}

.add-btn {
    background: var(--primary-color);
    color: white;
    box-shadow: 0 4px 6px rgba(99, 102, 241, 0.2);
}

.add-btn:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
}

.options-list {
    margin: 1.5rem 0;
    max-height: 200px;
    overflow-y: auto;
    padding-right: 0.5rem;
}

.options-list::-webkit-scrollbar {
    width: 8px;
}

.options-list::-webkit-scrollbar-track {
    background: #f1f5f9;
    border-radius: 4px;
}

.options-list::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

.option-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: #f8fafc;
    margin-bottom: 0.5rem;
    border-radius: var(--border-radius);
    transition: all var(--transition-speed);
}

.option-item:hover {
    background: #f1f5f9;
    transform: translateX(4px);
}

.remove-btn {
    background: none;
    color: var(--accent-color);
    padding: 0.5rem;
    font-size: 1.2rem;
    opacity: 0.7;
    transition: all var(--transition-speed);
}

.remove-btn:hover {
    opacity: 1;
    transform: scale(1.1);
}

.wheel-controls {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.spin-btn {
    background: var(--accent-color);
    color: white;
    font-size: 1.2rem;
    padding: 1.2rem;
    box-shadow: 0 4px 6px rgba(244, 63, 94, 0.2);
}

.spin-btn:hover:not(:disabled) {
    background: #e11d48;
    transform: translateY(-2px);
}

.spin-btn:disabled {
    background: #cbd5e1;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.secondary-btn {
    background: var(--secondary-color);
    color: white;
    box-shadow: 0 4px 6px rgba(79, 70, 229, 0.2);
}

.secondary-btn:hover {
    background: #4338ca;
    transform: translateY(-2px);
}

.speed-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: #f8fafc;
    border-radius: var(--border-radius);
}

select {
    padding: 0.8rem;
    border-radius: var(--border-radius);
    border: 2px solid #e2e8f0;
    background: white;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-speed);
}

select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* Popup Styles */
.popup, .modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-speed);
}

.popup.active, .modal.active {
    opacity: 1;
    visibility: visible;
}

.popup-content, .modal-content {
    background: white;
    padding: 2.5rem;
    border-radius: var(--border-radius);
    position: relative;
    max-width: 500px;
    width: 90%;
    text-align: center;
    transform: scale(0.95);
    transition: all var(--transition-speed);
    box-shadow: var(--box-shadow);
}

.popup.active .popup-content,
.modal.active .modal-content {
    transform: scale(1);
}

.result-text {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 2rem 0;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    background: var(--primary-color);
    color: white;
    box-shadow: 0 4px 6px rgba(99, 102, 241, 0.2);
}

.popup-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.close-btn {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-color);
    opacity: 0.7;
    transition: all var(--transition-speed);
}

.close-btn:hover {
    opacity: 1;
    transform: rotate(90deg);
}

/* Help Modal Content */
.help-content {
    text-align: left;
    margin: 1.5rem 0;
}

.help-content section {
    margin-bottom: 2rem;
}

.help-content h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.help-content ol, .help-content ul {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

.help-content li {
    margin-bottom: 0.5rem;
}

.disclaimer {
    background: #f8fafc;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--accent-color);
}

.disclaimer ul {
    list-style-type: none;
    margin-left: 0;
}

.disclaimer li {
    position: relative;
    padding-left: 1.5rem;
}

.disclaimer li::before {
    content: "⚠️";
    position: absolute;
    left: 0;
}

.ads-notice {
    background: #f0f9ff;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-color);
}

/* Footer Styles */
footer {
    margin-top: 4rem;
    padding: 2rem 0;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

footer p {
    color: var(--text-color);
    opacity: 0.8;
}

footer nav {
    display: flex;
    gap: 1.5rem;
}

footer a {
    color: var(--primary-color);
    text-decoration: none;
    transition: all var(--transition-speed);
}

footer a:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

/* Responsive Footer */
@media (max-width: 768px) {
    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    footer nav {
        justify-content: center;
    }
}

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

    .wheel-container {
        max-width: 300px;
    }

    .input-group {
        flex-direction: column;
    }

    .popup-buttons {
        flex-direction: column;
    }

    .result-text {
        font-size: 2rem;
    }

    header {
        padding: 0.5rem 1rem;
        margin-bottom: 2rem;
    }

    h1 {
        font-size: 1.5rem;
    }

    .wheel-logo {
        width: 28px;
        height: 28px;
    }

    .help-btn {
        width: 28px;
        height: 28px;
        font-size: 1rem;
    }
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideIn {
    from { transform: translateY(-20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

@keyframes scaleIn {
    from { transform: scale(0.95); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

/* Information Section Styles */
.info-section {
    margin: 3rem 0;
    padding: 0 1rem;
}

.info-content {
    max-width: 800px;
    margin: 0 auto;
    display: grid;
    gap: 2rem;
}

.info-content section {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.info-content h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.info-content p {
    margin-bottom: 1rem;
    line-height: 1.6;
}

.info-content ul {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

.info-content li {
    margin-bottom: 0.5rem;
}

.info-content .disclaimer {
    border-left: 4px solid var(--accent-color);
}

.info-content .disclaimer ul {
    list-style-type: none;
    margin-left: 0;
}

.info-content .disclaimer li {
    position: relative;
    padding-left: 1.5rem;
}

.info-content .disclaimer li::before {
    content: "⚠️";
    position: absolute;
    left: 0;
}

.info-content .ads-notice {
    border-left: 4px solid var(--primary-color);
    background: #f0f9ff;
}

/* Responsive Design for Info Section */
@media (max-width: 768px) {
    .info-content {
        gap: 1rem;
    }

    .info-content section {
        padding: 1.5rem;
    }
}

/* Article Section Styles */
.article-section {
    margin: 4rem 0;
    padding: 0 1rem;
}

.article-section h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--primary-color);
    font-size: 2rem;
}

.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.article-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--box-shadow);
    transition: transform var(--transition-speed);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.article-card:hover {
    transform: translateY(-5px);
}

.article-card h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 1.4rem;
    line-height: 1.3;
}

.article-content {
    flex: 1;
}

.article-content p {
    color: var(--text-color);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.article-content h4 {
    color: var(--secondary-color);
    margin: 1.5rem 0 1rem;
    font-size: 1.2rem;
}

.article-content ul {
    list-style-type: none;
    margin: 0 0 1.5rem;
    padding-left: 1.5rem;
}

.article-content li {
    position: relative;
    margin-bottom: 0.8rem;
    line-height: 1.5;
    padding-left: 1.5rem;
}

.article-content li::before {
    content: "•";
    color: var(--primary-color);
    position: absolute;
    left: 0;
    font-weight: bold;
}

.read-more {
    display: inline-block;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-speed);
}

.read-more:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

.read-more::after {
    content: " →";
    transition: transform var(--transition-speed);
}

.read-more:hover::after {
    transform: translateX(5px);
}

/* Responsive Design for Article Section */
@media (max-width: 768px) {
    .article-grid {
        grid-template-columns: 1fr;
    }

    .article-card {
        padding: 1.5rem;
    }

    .article-card h3 {
        font-size: 1.3rem;
    }
}