/* ===========================
   ABOUT PAGE SPECIFIC STYLES
   =========================== */

/* About Header */
.about-header {
    padding: 8rem 0 3rem;
    background: linear-gradient(180deg, rgba(10, 10, 10, 0) 0%, var(--dark-bg-secondary) 100%);
    text-align: center;
}

.page-title {
    font-size: 3.5rem;
    font-weight: bold;
    margin-bottom: 1rem;
    background: var(--gradient-2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 0.8s ease-out;
}

.page-subtitle {
    font-size: 1.3rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    animation: fadeInUp 0.8s ease-out 0.2s backwards;
}

/* Personal Introduction */
.personal-intro {
    padding: 5rem 0;
    background: var(--dark-bg);
}

.intro-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
    align-items: center;
}

.intro-image {
    position: relative;
    text-align: center;
}

.intro-image img {
    width: 100%;
    max-width: 300px;
    border-radius: 20px;
    filter: grayscale(20%);
    transition: filter 0.3s;
}

.intro-image:hover img {
    filter: grayscale(0%);
}

.intro-decoration {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%) translateX(-20px);
    width: 100%;
    max-width: 300px;
    height: 100%;
    border: 3px solid var(--primary-color);
    border-radius: 20px;
    z-index: -1;
}

.intro-text h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.intro-description {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.quick-stats {
    display: flex;
    gap: 3rem;
    margin-top: 2rem;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Experience Section - Game-like Roadmap */
.experience-section {
    padding: 5rem 0;
    background: var(--dark-bg-secondary);
    position: relative;
    overflow: hidden;
}

.experience-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(0, 255, 136, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(0, 255, 255, 0.03) 0%, transparent 50%);
    pointer-events: none;
}

.experience-roadmap {
    position: relative;
    padding: 3rem 0;
    max-width: 1000px;
    margin: 0 auto;
    isolation: isolate;
}

/* Main roadmap line */
.roadmap-line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, 
        transparent 0%,
        var(--primary-color) 10%,
        var(--primary-color) 90%,
        transparent 100%
    );
    transform: translateX(-50%);
    z-index: -1;
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.3);
    --line-progress: 0;
}

.roadmap-line::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    height: calc(var(--line-progress, 0) * 100%);
    width: 2px;
    background: linear-gradient(180deg, 
        var(--accent-color) 0%,
        var(--primary-color) 50%,
        var(--accent-color) 100%
    );
    transform: translateX(-50%);
    z-index: -2;
    animation: roadmapPulse 3s ease-in-out infinite;
    transition: height 0.3s ease-out;
}

@keyframes roadmapPulse {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

/* Experience milestones */
.experience-milestone {
    position: relative;
    margin-bottom: 6rem;
    opacity: 0;
    z-index: 10;
    isolation: isolate;
    animation: milestoneReveal 0.8s ease-out forwards;
}

.experience-milestone:nth-child(2) { animation-delay: 0.2s; }
.experience-milestone:nth-child(3) { animation-delay: 0.4s; }
.experience-milestone:nth-child(4) { animation-delay: 0.6s; }
.experience-milestone:nth-child(5) { animation-delay: 0.8s; }

@keyframes milestoneReveal {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Milestone markers (the icons on the line) */
.milestone-marker {
    position: absolute;
    left: 50%;
    top: 2rem;
    transform: translateX(-50%);
    z-index: 20;
}

.milestone-marker:hover {
    z-index: 25;
}

.milestone-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border: 4px solid var(--dark-bg-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--dark-bg);
    position: relative;
    z-index: 22;
    transition: all 0.3s ease;
}

.milestone-icon:hover {
    transform: scale(1.1);
    z-index: 30;
    box-shadow: 0 0 30px rgba(0, 255, 136, 0.6);
}

.milestone-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 80px;
    height: 80px;
    background: radial-gradient(circle, rgba(0, 255, 136, 0.3) 0%, transparent 70%);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    z-index: 21;
    animation: glowPulse 2s ease-in-out infinite;
}

@keyframes glowPulse {
    0%, 100% { 
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.6;
    }
    50% { 
        transform: translate(-50%, -50%) scale(1.2);
        opacity: 1;
    }
}

/* Milestone content */
.milestone-content {
    position: relative;
    width: 45%;
}

.milestone-content.left {
    left: 0;
    padding-right: 4rem;
}

.milestone-content.right {
    right: 0;
    margin-left: 55%;
    padding-left: 4rem;
}

.milestone-date {
    font-size: 0.9rem;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.milestone-card {
    background: linear-gradient(135deg, var(--card-bg), rgba(26, 26, 26, 0.8));
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2rem;
    position: relative;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.milestone-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 20px;
    padding: 1px;
    background: linear-gradient(135deg, var(--primary-color), transparent, var(--accent-color));
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: xor;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.milestone-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 255, 136, 0.1);
}

.milestone-card:hover::before {
    opacity: 1;
}

/* Arrow pointing to the line */
.milestone-content.left .milestone-card::after {
    content: '';
    position: absolute;
    right: -15px;
    top: 2rem;
    width: 0;
    height: 0;
    border: 15px solid transparent;
    border-left-color: var(--border-color);
}

.milestone-content.right .milestone-card::after {
    content: '';
    position: absolute;
    left: -15px;
    top: 2rem;
    width: 0;
    height: 0;
    border: 15px solid transparent;
    border-right-color: var(--border-color);
}

.card-header {
    margin-bottom: 1rem;
}

.card-header h3 {
    font-size: 1.4rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--text-primary), var(--primary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.card-header h4 {
    color: var(--primary-color);
    font-weight: 500;
    font-size: 1rem;
}

.milestone-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.achievement-list {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0;
}

.achievement-list li {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 0.8rem;
    position: relative;
    padding-left: 2rem;
}

.achievement-list li::before {
    content: "⚡";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-size: 1.1rem;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1.5rem;
}

.tech-tag {
    padding: 0.4rem 0.8rem;
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.1), rgba(0, 255, 255, 0.05));
    color: var(--primary-color);
    border: 1px solid rgba(0, 255, 136, 0.3);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.tech-tag:hover {
    background: var(--primary-color);
    color: var(--dark-bg);
    transform: translateY(-2px);
}

/* Roadmap end */
.roadmap-end {
    position: relative;
    text-align: center;
    margin-top: 3rem;
}

.end-marker {
    position: relative;
    display: inline-block;
}

.end-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--accent-color), var(--primary-color));
    border: 4px solid var(--dark-bg-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--dark-bg);
    margin: 0 auto;
    position: relative;
    z-index: 2;
    animation: rocketPulse 2s ease-in-out infinite;
}

.end-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 120px;
    height: 120px;
    background: radial-gradient(circle, rgba(0, 255, 255, 0.3) 0%, transparent 70%);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    z-index: 1;
    animation: endGlow 3s ease-in-out infinite;
}

@keyframes rocketPulse {
    0%, 100% { transform: scale(1) rotate(0deg); }
    50% { transform: scale(1.1) rotate(5deg); }
}

@keyframes endGlow {
    0%, 100% { 
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.4;
    }
    50% { 
        transform: translate(-50%, -50%) scale(1.3);
        opacity: 0.8;
    }
}

.end-text {
    margin-top: 1rem;
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .roadmap-line {
        left: 30px;
        transform: none;
    }
    
    .milestone-marker {
        left: 30px;
        transform: translateX(-50%);
    }
    
    .milestone-content {
        width: calc(100% - 80px);
        margin-left: 80px !important;
        padding-left: 2rem !important;
        padding-right: 0 !important;
    }
    
    .milestone-content.left .milestone-card::after,
    .milestone-content.right .milestone-card::after {
        left: -15px;
        right: auto;
        border: 15px solid transparent;
        border-right-color: var(--border-color);
        border-left-color: transparent;
    }
    
    .milestone-icon {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
    
    .milestone-glow {
        width: 70px;
        height: 70px;
    }
}

/* Education Section */
.education-section {
    padding: 5rem 0;
    background: var(--dark-bg);
}

.education-content {
    margin-top: 3rem;
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.education-item {
    display: flex;
    gap: 2rem;
    padding: 2rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    transition: var(--transition);
}

.education-item:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-glow);
}

.education-item.current {
    border-color: var(--primary-color);
    background: rgba(0, 255, 136, 0.05);
}

.education-image {
    flex: 0 0 80px;
    text-align: center;
}

.education-image i {
    font-size: 3rem;
    color: var(--primary-color);
}

.education-details h3 {
    font-size: 1.8rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.education-details h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.education-date {
    color: var(--text-muted);
    font-style: italic;
    margin-bottom: 1rem;
}

.education-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.modules-list h5,
.achievements h5 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.module-tag {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    background: rgba(0, 255, 136, 0.1);
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    border-radius: 20px;
    font-size: 0.85rem;
    margin: 0.25rem;
}

.achievements ul {
    list-style: none;
    padding: 0;
}

.achievements li {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 1.5rem;
}

.achievements li::before {
    content: "★";
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

/* Skills & Expertise */
.skills-expertise {
    padding: 5rem 0;
    background: var(--dark-bg-secondary);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.skill-category {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    padding: 2rem;
}

.skill-category h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.skill-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.skill-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
}

.skill-item:last-child {
    border-bottom: none;
}

.skill-name {
    color: var(--text-primary);
    font-weight: 500;
}

.skill-level {
    color: var(--primary-color);
    font-size: 0.9rem;
    font-weight: 600;
}

/* Tools only styling for about page */
.tools-only .skill-item {
    justify-content: flex-start;
    padding: 0.5rem 0;
}

.tools-only .skill-level {
    display: none;
}

/* Philosophy Section */
.philosophy-section {
    padding: 5rem 0;
    background: var(--dark-bg);
}

.philosophy-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.philosophy-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
}

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

.philosophy-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.philosophy-card h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.philosophy-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Contact CTA */
.contact-cta {
    padding: 5rem 0;
    background: var(--dark-bg-secondary);
    text-align: center;
}

.contact-cta h2 {
    font-size: 2.5rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.contact-cta p {
    color: var(--text-secondary);
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .page-title {
        font-size: 2.5rem;
    }
    
    .intro-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .quick-stats {
        justify-content: center;
    }
    
    .education-item {
        flex-direction: column;
        text-align: center;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .philosophy-content {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .intro-text h2 {
        font-size: 2rem;
    }
    
    .quick-stats {
        gap: 1.5rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
}