/* --- DESIGN SYSTEM & CSS VARIABLES --- */
:root {
    --bg-dark: #030014;
    --bg-card: rgba(255, 255, 255, 0.03);
    --border-color: rgba(255, 255, 255, 0.07);
    
    --primary: #6366f1; /* Indigo */
    --primary-glow: rgba(99, 102, 241, 0.15);
    --secondary: #06b6d4; /* Cyan */
    --secondary-glow: rgba(6, 182, 212, 0.15);
    
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --text-darker: #64748b;
    
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --- RESET & BASIC STYLES --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    cursor: none; /* Hide default cursor to use custom premium cursor */
}

html {
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: var(--primary) var(--bg-dark);
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-sans);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: var(--bg-dark);
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 10px;
    transition: var(--transition-smooth);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

/* --- CANVAS & AMBIENT BACKGROUNDS --- */
#hero-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -2;
    pointer-events: none;
    transition: opacity 1s ease;
}

.ambient-light {
    position: fixed;
    width: 60vmax;
    height: 60vmax;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.08) 0%, rgba(6, 182, 212, 0.03) 50%, transparent 100%);
    top: -10vmax;
    left: -10vmax;
    z-index: -3;
    pointer-events: none;
}

/* --- CUSTOM CURSOR GLOW --- */
.custom-cursor {
    width: 8px;
    height: 8px;
    background: var(--primary);
    box-shadow: 0 0 8px var(--primary);
    border-radius: 50%;
    position: fixed;
    top: 0;
    left: 0;
    transform: translate3d(0, 0, 0) translate(-50%, -50%);
    pointer-events: none;
    z-index: 9999;
    transition: width 0.2s, height 0.2s;
    will-change: transform;
}

.custom-cursor-glow {
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.12) 0%, rgba(6, 182, 212, 0.02) 50%, transparent 70%);
    border-radius: 50%;
    position: fixed;
    top: 0;
    left: 0;
    transform: translate3d(0, 0, 0) translate(-50%, -50%);
    pointer-events: none;
    z-index: 9998;
    will-change: transform;
}

/* --- GRID & CONTAINER LAYOUTS --- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* --- NAVIGATION --- */
nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    border-bottom: 1px solid var(--border-color);
    background: rgba(3, 0, 20, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: var(--transition-smooth);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 900;
    background: linear-gradient(135deg, #a5b4fc, #22d3ee);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-decoration: none;
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    list-style: none;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.5px;
    transition: var(--transition-smooth);
}

.nav-links a:hover {
    color: var(--primary);
    text-shadow: 0 0 10px rgba(99, 102, 241, 0.5);
}

/* --- GLASS BUTTONS --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.75rem;
    border-radius: 9999px;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-decoration: none;
    transition: var(--transition-smooth);
    border: 1px solid transparent;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    background: #5053e6;
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.5);
    transform: translateY(-2px);
}

.btn-outline {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    color: var(--text-main);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--primary);
    color: white;
    transform: translateY(-2px);
}

/* --- HERO SECTION --- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
}

.hero-content {
    max-width: 800px;
}

.hero-tag {
    font-family: monospace;
    color: var(--primary);
    font-size: 0.85rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
    display: inline-block;
}

.hero-name {
    font-size: 5rem;
    font-weight: 800;
    line-height: 1.1;
    color: white;
    margin-bottom: 1.5rem;
    letter-spacing: -2px;
}

.hero-name span {
    color: rgba(255, 255, 255, 0.2);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.15) 0%, rgba(255, 255, 255, 0.03) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-desc {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 600px;
    margin-bottom: 2.5rem;
    line-height: 1.7;
}

.hero-desc span {
    color: #a5b4fc;
}

.hero-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-main);
    transition: var(--transition-smooth);
    position: relative;
}

.social-btn::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%) translateY(5px);
    background: rgba(15, 10, 30, 0.95);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 0.4rem 0.8rem;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1), transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    z-index: 10;
}

.social-btn::before {
    content: '';
    position: absolute;
    bottom: calc(100% + 4px);
    left: 50%;
    transform: translateX(-50%) translateY(5px);
    border-width: 6px 6px 0;
    border-style: solid;
    border-color: rgba(15, 10, 30, 0.95) transparent transparent;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1), transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 10;
}

.social-btn:hover::after,
.social-btn:hover::before {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.social-btn:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 5px 15px rgba(99, 102, 241, 0.3);
}

.hero-spi {
    margin-left: 1rem;
    font-size: 0.85rem;
    color: var(--text-darker);
    font-family: monospace;
    font-style: italic;
}

/* --- GLASS CARD COMPONENT --- */
.glass-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, transparent 100%);
    pointer-events: none;
}

/* --- SECTIONS GENERAL --- */
section {
    padding: 8rem 0;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 800;
    color: white;
    margin-bottom: 3.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.section-title i {
    color: var(--primary);
}

/* --- SKILLS --- */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.skills-category {
    padding: 2.5rem;
    will-change: transform, box-shadow;
}

.skills-category h3 {
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 2rem;
}

.skills-category.lang h3 { color: var(--primary); }
.skills-category.frame h3 { color: var(--secondary); }
.skills-category.backend h3 { color: #10b981; }
.skills-category.tools h3 { color: #c084fc; }
.skills-category.design h3 { color: #f43f5e; }
.skills-category.soft h3 { color: #f59e0b; }

.skills-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.skill-tag {
    padding: 0.6rem 1.2rem;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    font-size: 0.85rem;
    color: var(--text-muted);
    transition: var(--transition-smooth);
    position: relative;
}

.skill-tag::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%) translateY(5px);
    background: rgba(15, 10, 30, 0.95);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 0.4rem 0.8rem;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1), transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    z-index: 10;
}

.skill-tag::before {
    content: '';
    position: absolute;
    bottom: calc(100% + 4px);
    left: 50%;
    transform: translateX(-50%) translateY(5px);
    border-width: 6px 6px 0;
    border-style: solid;
    border-color: rgba(15, 10, 30, 0.95) transparent transparent;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1), transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 10;
}

.skill-tag:hover::after,
.skill-tag:hover::before {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.skill-tag:hover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.08);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.15);
}

/* --- PROJECTS --- */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.75rem;
}

.project-card {
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    will-change: transform, box-shadow;
}

.project-card:hover {
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: 0 10px 40px rgba(99, 102, 241, 0.1);
}

.project-card.ecommerce:hover {
    border-color: rgba(6, 182, 212, 0.3);
    box-shadow: 0 10px 40px rgba(6, 182, 212, 0.1);
}

.project-card.portfolio:hover {
    border-color: rgba(16, 182, 129, 0.3);
    box-shadow: 0 10px 40px rgba(16, 182, 129, 0.1);
}

.project-badge {
    align-self: flex-start;
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    font-size: 0.65rem;
    font-weight: 800;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
}

.project-card.logistics .project-badge {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
}

.project-card.ecommerce .project-badge {
    background: rgba(6, 182, 212, 0.1);
    color: var(--secondary);
}

.project-card.portfolio .project-badge {
    background: rgba(16, 182, 129, 0.1);
    color: #10b981;
}

.project-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1rem;
}

.project-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 2rem;
}

.project-tech {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 2.5rem;
}

.tech-pill {
    font-size: 0.7rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    padding: 0.25rem 0.6rem;
    border-radius: 6px;
    color: var(--text-darker);
}

.project-btn {
    width: 100%;
    padding: 1rem;
    background: white;
    color: black;
    border-radius: 14px;
    font-weight: 700;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
    transition: var(--transition-smooth);
}

.project-card.logistics:hover .project-btn {
    background: var(--primary);
    color: white;
}

.project-card.ecommerce:hover .project-btn {
    background: var(--secondary);
    color: white;
}

.project-card.portfolio:hover .project-btn {
    background: #10b981;
    color: white;
}

/* --- ACHIEVEMENTS BENTO --- */
.bento-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-auto-rows: minmax(180px, auto);
    gap: 1.25rem;
}

.bento-card {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    will-change: transform, box-shadow;
}

.bento-main {
    grid-column: span 2;
    grid-row: span 2;
}

.bento-span-2 {
    grid-column: span 2;
}

.bento-card i {
    font-size: 1.75rem;
    color: var(--primary);
    margin-bottom: 2rem;
}

.bento-card h4 {
    font-size: 1.25rem;
    color: white;
    margin-bottom: 0.75rem;
}

.bento-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.5;
}

.bento-#fps-overlay {
    position: fixed;
    top: 0;
    left: 0;
    background: rgba(0,0,0,0.5);
    color: #fff;
    padding: 2px 5px;
    font-size: 12px;
    z-index: 9999;
}

.bento-footer {
    display: flex;
    gap: 1rem;
    margin-top: auto;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-darker);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.bento-lead {
    background: var(--primary);
    color: white;
    border: none;
}

.bento-lead .bento-subtitle {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    opacity: 0.8;
    margin-bottom: 0.25rem;
}

.bento-lead h4 {
    font-size: 1.5rem;
}

.bento-sports {
    border-color: rgba(255, 255, 255, 0.15);
}

.bento-sports h4 {
    font-style: italic;
    text-decoration: underline;
    text-decoration-color: var(--primary);
    text-underline-offset: 4px;
}

.bento-next {
    grid-column: span 2;
    border-style: dashed;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
}

.bento-next p {
    font-family: monospace;
    font-size: 0.9rem;
    letter-spacing: 4px;
    color: var(--text-darker);
    font-weight: 600;
}

/* --- FOOTER --- */
footer {
    padding: 3.5rem 0;
    border-top: 1px solid var(--border-color);
    background: rgba(3, 0, 20, 0.8);
}

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

.footer-copy {
    font-size: 0.85rem;
    color: var(--text-darker);
}

/* --- RESPONSIVE MEDIA QUERIES --- */
@media (max-width: 1024px) {
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .bento-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .bento-main {
        grid-column: span 2;
        grid-row: span 2;
    }
}

@media (max-width: 768px) {
    * {
        cursor: auto !important; /* Restore cursor on tablet/mobile */
    }
    
    .custom-cursor, .custom-cursor-glow {
        display: none !important;
    }
    
    .nav-links {
        display: none; /* Add responsive mobile nav toggle later if desired */
    }
    
    .hero-name {
        font-size: 3.5rem;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.5rem;
    }
    
    .skills-grid, .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .bento-grid {
        grid-template-columns: 1fr;
    }
    
    .bento-main, .bento-next, .bento-span-2 {
        grid-column: span 1;
    }
    
    .footer-container {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }
}

/* --- 3D SCROLL ANIMATION STYLES --- */
[data-animate] {
    opacity: 0;
    transform: translateY(40px) perspective(1000px) rotateX(10deg);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: transform, opacity;
}

[data-animate].animated {
    opacity: 1;
    transform: translateY(0) perspective(1000px) rotateX(0deg);
    will-change: transform, opacity;
}

/* Stagger delays for grid items */
.stagger-item {
    opacity: 0;
    transform: scale3d(0.9, 0.9, 0.9) translateY(30px) perspective(1000px) rotateY(-8deg);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: transform, opacity;
}

.stagger-item.animated {
    opacity: 1;
    transform: scale3d(1, 1, 1) translateY(0) perspective(1000px) rotateY(0deg);
}

.stagger-delay-1 { transition-delay: 0.1s; }
.stagger-delay-2 { transition-delay: 0.2s; }
.stagger-delay-3 { transition-delay: 0.3s; }
.stagger-delay-4 { transition-delay: 0.4s; }
.stagger-delay-5 { transition-delay: 0.5s; }

/* --- EXPERIENCE TIMELINE --- */
.timeline {
    position: relative;
    padding-left: 2rem;
    border-left: 2px solid var(--border-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 3.5rem;
    padding-left: 1.5rem;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-marker {
    position: absolute;
    left: -2.6rem;
    top: 0.25rem;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--bg-dark);
    border: 3px solid var(--primary);
    transition: var(--transition-smooth);
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.5);
    will-change: transform;
}

.timeline-item:hover .timeline-marker {
    background: var(--primary);
    transform: scale(1.3);
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.8);
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.timeline-role {
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
}

.timeline-company {
    font-size: 0.95rem;
    color: var(--secondary);
    font-weight: 600;
}

.timeline-duration {
    font-family: monospace;
    font-size: 0.85rem;
    color: var(--text-darker);
    font-weight: 600;
}

.timeline-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 2rem;
    border-radius: 20px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: var(--transition-smooth);
    will-change: transform;
}

.timeline-content:hover {
    border-color: rgba(99, 102, 241, 0.2);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.05);
}

.timeline-bullets {
    list-style: none;
}

.timeline-bullets li {
    position: relative;
    padding-left: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.timeline-bullets li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--primary);
}

/* --- TRACKER CARD GLOW ACCENTS --- */
.project-card.tracker:hover {
    border-color: rgba(168, 85, 247, 0.3);
    box-shadow: 0 10px 40px rgba(168, 85, 247, 0.1);
}

.project-card.tracker .project-badge {
    background: rgba(168, 85, 247, 0.1);
    color: #a855f7;
}

.project-card.tracker:hover .project-btn {
    background: #a855f7;
    color: white;
}