/* Mode Selector Styles */

/* Curriculum Section Styles */
.curriculum-section {
    min-height: 100vh;
    padding: var(--spacing-xl) 0;
    position: relative;
    background: transparent;
}

.curriculum-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-2xl);
    display: flex;
    gap: var(--spacing-xl);
}

/* Curriculum Left Column */
.curriculum-left {
    position: sticky;
    top: var(--spacing-xl);
    width: 40%;
    height: fit-content;
    max-height: calc(100vh - 160px);
    padding-right: var(--spacing-xl);
}

.curriculum-header h1 {
    font-family: var(--font-primary);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.curriculum-header h2 {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.curriculum-header p {
    max-width: 400px;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* Curriculum Navigation - Dot Style */
.curriculum-nav {
    margin-top: var(--spacing-lg);
}

.curriculum-dots {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.curriculum-dot {
    position: relative;
    display: flex;
    align-items: center;
    text-decoration: none;
    cursor: pointer;
    padding: 0.5rem 0;
}

.mini-dot {
    width: 6px;
    height: 6px;
    background: var(--text-muted);
    border-radius: 50%;
    transition: var(--transition);
    margin-right: var(--spacing-sm);
}

.curriculum-dot.active .mini-dot,
.curriculum-dot:hover .mini-dot {
    background: var(--accent);
    transform: scale(1.5);
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
}

.mini-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-secondary);
    transition: var(--transition);
    opacity: 0.7;
}

.curriculum-dot.active .mini-label,
.curriculum-dot:hover .mini-label {
    opacity: 1;
    color: var(--text-primary);
}

/* Curriculum Social Links */
.curriculum-social {
    display: flex;
    gap: var(--spacing-md);
    margin-top: auto;
}

.curriculum-social a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    transition: var(--transition);
}

.curriculum-social a:hover {
    color: var(--accent);
}

/* Curriculum Right Column */
.curriculum-right {
    width: 60%;
    padding-left: var(--spacing-xl);
}

.curriculum-subsection {
    margin-bottom: var(--spacing-2xl);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s ease forwards;
}

.curriculum-subsection:nth-child(1) { animation-delay: 0.2s; }
.curriculum-subsection:nth-child(2) { animation-delay: 0.4s; }
.curriculum-subsection:nth-child(3) { animation-delay: 0.6s; }
.curriculum-subsection:nth-child(4) { animation-delay: 0.8s; }

.curriculum-subsection h3 {
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
}

/* Curriculum Cards */
.curriculum-card {
    position: relative;
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    border-radius: 8px;
    transition: var(--transition);
    cursor: pointer;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid transparent;
}

.curriculum-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--border-color);
    transform: translateY(-2px);
}

.curriculum-card p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.curriculum-card p:last-child {
    margin-bottom: 0;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
}

.card-title {
    color: var(--text-primary);
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: 0.25rem;
}

.card-company {
    color: var(--text-secondary);
    font-size: 1rem;
}

.card-date {
    color: var(--text-muted);
    font-size: 0.875rem;
    font-family: var(--font-primary);
}

.card-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.card-description ul {
    list-style: none;
}

.card-description li {
    position: relative;
    padding-left: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    line-height: 1.8;
}

.card-description li:before {
    content: "▸";
    position: absolute;
    left: 0;
    color: var(--accent);
}

/* Tech Tags */
.tech-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.tech-tag {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-family: var(--font-primary);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.curriculum-card:hover .tech-tag {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--text-secondary);
}

/* Project Grid for Curriculum */
.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.project-card-2d {
    background: rgba(255, 255, 255, 0.02);
    padding: var(--spacing-lg);
    border-radius: 8px;
    transition: var(--transition);
    cursor: pointer;
    border: 1px solid var(--border-color);
}

.project-card-2d:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--text-secondary);
}

.project-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.project-card-2d h4 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 1.25rem;
}

.project-card-2d p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

/* Responsive for Curriculum */
@media (max-width: 1024px) {
    .curriculum-container {
        flex-direction: column;
    }

    .curriculum-left {
        position: relative;
        width: 100%;
        top: auto;
    }

    .curriculum-right {
        width: 100%;
        padding-left: 0;
    }

    .curriculum-nav {
        display: none;
    }
}

@media (max-width: 768px) {
    .project-grid {
        grid-template-columns: 1fr;
    }
}

/* Experience Mode Button */
.experience-mode-btn {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 1000;
    background: rgba(139, 92, 246, 0.1);
    border: 2px solid rgba(139, 92, 246, 0.3);
    color: var(--text-primary);
    padding: 12px 24px;
    border-radius: 30px;
    font-family: var(--font-primary);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.experience-mode-btn:hover {
    background: rgba(139, 92, 246, 0.2);
    border-color: #8b5cf6;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(139, 92, 246, 0.3);
}

.mode-icon {
    font-size: 1.2rem;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-3px); }
}

/* Mode Selection Overlay */
.mode-selection-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at center, #1a0033 0%, #0a0a0a 100%);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transform: scale(0.9);
    transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.mode-selection-overlay.active {
    opacity: 1;
    visibility: visible;
    transform: scale(1);
}

/* Close Button */
.close-mode-selection {
    position: absolute;
    top: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    color: white;
    font-size: 2rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10001;
}

.close-mode-selection:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: rotate(90deg);
}

/* Mode Main Title */
.mode-main-title {
    font-size: 3rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 3px;
    background: linear-gradient(45deg, #8b5cf6, #ec4899, #3b82f6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: gradientShift 3s ease infinite;
    margin-bottom: 60px;
}

@keyframes gradientShift {
    0%, 100% { filter: hue-rotate(0deg); }
    50% { filter: hue-rotate(30deg); }
}

/* Mode Selection Container */
.mode-selection-container {
    display: flex;
    gap: 60px;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    max-width: 1200px;
    padding: 20px;
}

/* Mode Cards */
.mode-card {
    position: relative;
    width: 400px;
    height: 500px;
    cursor: pointer;
    transition: transform 0.5s ease, box-shadow 0.5s ease;
    border-radius: 20px;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), rgba(236, 72, 153, 0.05));
    border: 2px solid rgba(139, 92, 246, 0.3);
}

.mode-card:hover {
    transform: translateY(-20px) scale(1.05);
    box-shadow: 0 30px 80px rgba(139, 92, 246, 0.5);
    border-color: #8b5cf6;
}

.mode-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
    pointer-events: none;
}

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

/* Mode Preview */
.mode-preview {
    width: 100%;
    height: 60%;
    position: relative;
    overflow: hidden;
    background-size: cover;
    background-position: center;
}

.mode-3d {
    background: linear-gradient(135deg, #1a0033, #0a0a0a);
    position: relative;
}

.mode-3d::after {
    content: '🎮';
    font-size: 80px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: float 3s ease-in-out infinite;
}

.mode-2d {
    background: linear-gradient(135deg, #0a0a0a, #1a0033);
    position: relative;
}

.mode-2d::after {
    content: '📄';
    font-size: 80px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: twinkle 2s ease-in-out infinite;
}

@keyframes twinkle {
    0%, 100% { opacity: 1; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 0.7; transform: translate(-50%, -50%) scale(1.1); }
}

/* Mode Info */
.mode-info {
    padding: 30px;
    text-align: center;
    position: relative;
    z-index: 1;
}

.mode-title {
    font-size: 2rem;
    font-weight: bold;
    margin-bottom: 15px;
    background: linear-gradient(45deg, #8b5cf6, #ec4899);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.mode-description {
    color: #a0a0a0;
    line-height: 1.6;
    margin-bottom: 20px;
}

.mode-features {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.feature-tag {
    padding: 5px 15px;
    background: rgba(139, 92, 246, 0.2);
    border-radius: 20px;
    font-size: 0.9rem;
    color: #8b5cf6;
    border: 1px solid rgba(139, 92, 246, 0.3);
}

/* Particles Background */
.particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
    z-index: 1;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: #8b5cf6;
    border-radius: 50%;
    opacity: 0.5;
    animation: particleFloat 10s linear infinite;
}

@keyframes particleFloat {
    from {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 0.5;
    }
    90% {
        opacity: 0.5;
    }
    to {
        transform: translateY(-100vh) rotate(720deg);
        opacity: 0;
    }
}

/* Experience Containers */
.experience-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9998;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.5s ease, visibility 0.5s ease;
    background: var(--bg-primary);
}

.experience-container.active {
    opacity: 1;
    visibility: visible;
}

.experience-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* Back Button */
.back-to-portfolio {
    position: absolute;
    top: 30px;
    left: 30px;
    z-index: 10000;
    background: rgba(139, 92, 246, 0.1);
    border: 2px solid rgba(139, 92, 246, 0.3);
    color: white;
    padding: 12px 24px;
    border-radius: 30px;
    font-family: var(--font-primary);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.back-to-portfolio:hover {
    background: rgba(139, 92, 246, 0.2);
    border-color: #8b5cf6;
    transform: translateX(-5px);
}

/* Responsive */
@media (max-width: 768px) {
    .mode-selection-container {
        flex-direction: column;
        gap: 30px;
    }

    .mode-card {
        width: 90%;
        max-width: 350px;
        height: 400px;
    }

    .mode-main-title {
        font-size: 2rem;
    }

    .experience-mode-btn {
        top: auto;
        bottom: 20px;
        right: 20px;
    }
}