:root{--light-bg-primary: #FDFBF8;--light-bg-secondary: #FAF7F2;--light-text-primary: #1C1917;--light-text-secondary: #57534E;--light-text-tertiary: #78716C;--light-border-color: #D6D3D1;--light-bg-alt: #F5F5F4;--light-bg-hover: #E7E5E4;--light-bg-card: #FFFBF7;--light-shadow-sm: 0 1px 3px rgba(28, 25, 23, .08);--light-shadow-md: 0 4px 12px rgba(28, 25, 23, .12);--light-shadow-lg: 0 10px 25px rgba(28, 25, 23, .15);--light-shadow-xl: 0 20px 40px rgba(28, 25, 23, .2);--light-gradient-hero: linear-gradient(135deg, #FDFBF8 0%, #FAF7F2 50%, #F5F5F4 100%);--light-gradient-section: linear-gradient(180deg, #FDFBF8 0%, #FAF7F2 100%);--light-navbar-bg: rgba(255, 255, 255, .95);--light-photo-border: rgba(255, 251, 247, .9);--light-social-bg: #2D3748;--light-social-border: #4A5568;--light-social-hover-bg: #1A202C;--light-social-hover-border: #718096;--light-social-shadow: 0 2px 8px rgba(45, 55, 72, .3);--light-social-hover-shadow: 0 4px 12px rgba(45, 55, 72, .5);--dark-bg-primary: #0F0D0C;--dark-bg-secondary: #1C1917;--dark-text-primary: #F5F5F4;--dark-text-secondary: #A8A29E;--dark-text-tertiary: #78716C;--dark-border-color: #3F3F46;--dark-bg-alt: #27272A;--dark-bg-hover: #3F3F46;--dark-bg-card: #1C1917;--dark-shadow-sm: 0 1px 3px rgba(255, 255, 255, .08);--dark-shadow-md: 0 4px 12px rgba(255, 255, 255, .12);--dark-shadow-lg: 0 10px 25px rgba(255, 255, 255, .15);--dark-shadow-xl: 0 20px 40px rgba(255, 255, 255, .2);--dark-gradient-hero: linear-gradient(135deg, #0F0D0C 0%, #1C1917 50%, #27272A 100%);--dark-gradient-section: linear-gradient(180deg, #0F0D0C 0%, #1C1917 100%);--dark-navbar-bg: rgba(15, 13, 12, .95);--dark-photo-border: rgba(15, 13, 12, .9);--dark-social-bg: #374151;--dark-social-border: #4B5563;--dark-social-hover-bg: #1F2937;--dark-social-hover-border: #9CA3AF;--dark-social-shadow: 0 2px 8px rgba(255, 255, 255, .1);--dark-social-hover-shadow: 0 4px 12px rgba(255, 255, 255, .2);--accent-primary: #D97706;--accent-primary-light: #F59E0B;--accent-primary-dark: #B45309;--accent-secondary: #C2410C;--accent-success: #059669;--accent-warning: #D97706;--accent-error: #DC2626;--badge-data-analysis: #D97706;--badge-data-science: #C2410C;--badge-data-engineering: #059669;--badge-llm: #EA580C;--badge-business-analytics: #B45309;--gradient-primary: linear-gradient(135deg, #D97706 0%, #F59E0B 100%);--gradient-accent: linear-gradient(135deg, #D97706 0%, #C2410C 100%);--spacing-xs: .5rem;--spacing-sm: 1rem;--spacing-md: 1.5rem;--spacing-lg: 2rem;--spacing-xl: 3rem;--spacing-2xl: 4rem;--spacing-3xl: 6rem;--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-weight-regular: 400;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700;--radius-sm: .25rem;--radius-md: .5rem;--radius-lg: .75rem;--bg-primary: var(--dark-bg-primary);--bg-secondary: var(--dark-bg-secondary);--text-primary: var(--dark-text-primary);--text-secondary: var(--dark-text-secondary);--text-tertiary: var(--dark-text-tertiary);--border-color: var(--dark-border-color);--bg-alt: var(--dark-bg-alt);--bg-hover: var(--dark-bg-hover);--bg-card: var(--dark-bg-card);--shadow-sm: var(--dark-shadow-sm);--shadow-md: var(--dark-shadow-md);--shadow-lg: var(--dark-shadow-lg);--shadow-xl: var(--dark-shadow-xl);--gradient-hero: var(--dark-gradient-hero);--gradient-section: var(--dark-gradient-section);--navbar-bg: var(--dark-navbar-bg);--photo-border: var(--dark-photo-border);--social-bg: var(--dark-social-bg);--social-border: var(--dark-social-border);--social-hover-bg: var(--dark-social-hover-bg);--social-hover-border: var(--dark-social-hover-border);--social-shadow: var(--dark-social-shadow);--social-hover-shadow: var(--dark-social-hover-shadow)}:root[data-theme=light]{--bg-primary: var(--light-bg-primary);--bg-secondary: var(--light-bg-secondary);--text-primary: var(--light-text-primary);--text-secondary: var(--light-text-secondary);--text-tertiary: var(--light-text-tertiary);--border-color: var(--light-border-color);--bg-alt: var(--light-bg-alt);--bg-hover: var(--light-bg-hover);--bg-card: var(--light-bg-card);--shadow-sm: var(--light-shadow-sm);--shadow-md: var(--light-shadow-md);--shadow-lg: var(--light-shadow-lg);--shadow-xl: var(--light-shadow-xl);--gradient-hero: var(--light-gradient-hero);--gradient-section: var(--light-gradient-section);--navbar-bg: var(--light-navbar-bg);--photo-border: var(--light-photo-border);--social-bg: var(--light-social-bg);--social-border: var(--light-social-border);--social-hover-bg: var(--light-social-hover-bg);--social-hover-border: var(--light-social-hover-border);--social-shadow: var(--light-social-shadow);--social-hover-shadow: var(--light-social-hover-shadow)}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:var(--font-family);font-size:1rem;line-height:1.6;color:var(--text-primary);background-color:var(--bg-primary);background-image:radial-gradient(at 0% 0%,rgba(217,119,6,.04) 0px,transparent 50%),radial-gradient(at 100% 100%,rgba(194,65,12,.03) 0px,transparent 50%);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:background-color .3s ease,color .3s ease}.container{max-width:1200px;margin:0 auto;padding:0 var(--spacing-lg)}.navbar{position:fixed;top:0;width:100%;background:var(--navbar-bg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:var(--shadow-sm);z-index:1000;padding:var(--spacing-md) 0;transition:box-shadow .3s ease,background .3s ease}.navbar.scrolled{box-shadow:var(--shadow-md)}.navbar .container{display:flex;justify-content:space-between;align-items:center}.nav-left{display:flex;align-items:center;gap:var(--spacing-lg)}.logo{font-size:1.5rem;font-weight:var(--font-weight-bold);background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-.02em}.nav-home{text-decoration:none;color:var(--text-secondary);font-weight:var(--font-weight-medium);font-size:.9375rem;transition:color .2s ease;position:relative}.nav-home:hover{color:var(--accent-primary);font-weight:var(--font-weight-semibold)}.nav-home:after{content:"";position:absolute;bottom:-4px;left:0;width:0;height:2px;background-color:var(--accent-primary);transition:width .3s ease}.nav-home:hover:after{width:100%}.nav-links{display:flex;list-style:none;gap:var(--spacing-xl)}.nav-links a{text-decoration:none;color:var(--text-secondary);font-weight:var(--font-weight-medium);font-size:.9375rem;transition:color .2s ease;position:relative}.nav-links a:hover{color:var(--accent-primary);font-weight:var(--font-weight-semibold)}.nav-links a:after{content:"";position:absolute;bottom:-4px;left:0;width:0;height:2px;background-color:var(--accent-primary);transition:width .3s ease}.nav-links a:hover:after{width:100%}.nav-dropdown{position:relative}.dropdown-toggle{cursor:pointer;display:flex;align-items:center;gap:.25rem}.dropdown-arrow{font-size:.7rem;transition:transform .3s ease}.nav-dropdown.active .dropdown-arrow{transform:rotate(180deg)}.dropdown-menu{position:absolute;top:calc(100% + .5rem);left:50%;transform:translate(-50%);background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);list-style:none;padding:var(--spacing-xs) 0;min-width:160px;opacity:0;visibility:hidden;transform:translate(-50%) translateY(-10px);transition:opacity .3s ease,visibility .3s ease,transform .3s ease;z-index:1000}.nav-dropdown.active .dropdown-menu{opacity:1;visibility:visible;transform:translate(-50%) translateY(0)}.dropdown-menu li{margin:0}.dropdown-menu a{display:block;padding:var(--spacing-sm) var(--spacing-md);color:var(--text-secondary);text-decoration:none;font-size:.9375rem;transition:background-color .2s ease,color .2s ease}.dropdown-menu a:hover{background-color:var(--bg-hover);color:var(--accent-primary)}.dropdown-menu a:after{display:none}.nav-dropdown-sub{position:relative}.dropdown-sub-toggle{display:flex;align-items:center;justify-content:space-between;width:100%}.dropdown-sub-menu{position:absolute;top:0;left:calc(100% + .5rem);background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);list-style:none;padding:var(--spacing-xs) 0;min-width:180px;opacity:0;visibility:hidden;transform:translate(-10px);transition:opacity .3s ease,visibility .3s ease,transform .3s ease;z-index:1000}.nav-dropdown-sub:hover .dropdown-sub-menu,.nav-dropdown-sub.active .dropdown-sub-menu{opacity:1;visibility:visible;transform:translate(0)}.nav-dropdown-sub:hover .dropdown-sub-toggle .dropdown-arrow,.nav-dropdown-sub.active .dropdown-sub-toggle .dropdown-arrow{transform:rotate(90deg)}.dropdown-sub-menu li{margin:0}.dropdown-sub-menu a{display:block;padding:var(--spacing-sm) var(--spacing-md);color:var(--text-secondary);text-decoration:none;font-size:.9375rem;transition:background-color .2s ease,color .2s ease}.dropdown-sub-menu a:hover{background-color:var(--bg-hover);color:var(--accent-primary)}.hero{min-height:100vh;display:flex;align-items:center;padding-top:80px;padding-bottom:var(--spacing-3xl);background:var(--gradient-hero);position:relative;overflow:hidden}.hero:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:radial-gradient(circle at 20% 50%,rgba(217,119,6,.08) 0%,transparent 50%),radial-gradient(circle at 80% 80%,rgba(194,65,12,.06) 0%,transparent 50%);pointer-events:none}.hero:after{content:"";position:absolute;top:-50%;right:-10%;width:600px;height:600px;background:radial-gradient(circle,rgba(217,119,6,.08) 0%,transparent 70%);border-radius:50%;pointer-events:none}.hero-content{display:grid;grid-template-columns:1fr 2fr;gap:var(--spacing-3xl);align-items:center}.hero-image-placeholder{display:flex;justify-content:center;align-items:center;position:relative;z-index:1}.photo-placeholder{width:280px;height:280px;border-radius:50%;background:var(--gradient-accent);display:flex;align-items:center;justify-content:center;color:#fff;font-size:4rem;font-weight:var(--font-weight-bold);box-shadow:0 20px 40px #d9770640,0 0 0 8px var(--photo-border),0 0 0 12px #d977061a;position:relative;z-index:1;transition:transform .3s ease}.photo-placeholder:hover{transform:scale(1.05)}.photo-placeholder:before{content:"";position:absolute;top:-8px;right:-8px;bottom:-8px;left:-8px;border-radius:50%;background:var(--gradient-accent);opacity:.2;filter:blur(30px);z-index:-1}.profile-photo{width:280px;height:280px;border-radius:50%;object-fit:cover;object-position:center;box-shadow:0 20px 40px #d9770640,0 0 0 8px var(--photo-border),0 0 0 12px #d977061a;position:relative;z-index:1;transition:transform .3s ease;border:4px solid var(--bg-card)}.profile-photo:hover{transform:scale(1.05)}.hero-image-placeholder:after{content:"";position:absolute;top:-8px;right:-8px;bottom:-8px;left:-8px;border-radius:50%;background:var(--gradient-accent);opacity:.2;filter:blur(30px);z-index:0;pointer-events:none}.hero-text{animation:fadeInUp .6s ease-out;position:relative;z-index:1}.hero-title{font-size:3.5rem;font-weight:var(--font-weight-bold);line-height:1.1;margin-bottom:var(--spacing-md);color:var(--text-primary)}.highlight{background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;font-weight:var(--font-weight-bold)}.typing-cursor:after{content:"|";color:var(--accent-primary);animation:blink 1s infinite;margin-left:2px}@keyframes blink{0%,50%{opacity:1}51%,to{opacity:0}}.hero-subtitle{font-size:1.5rem;font-weight:var(--font-weight-medium);color:var(--text-secondary);margin-bottom:var(--spacing-md)}.hero-description{font-size:1.125rem;color:var(--text-secondary);margin-bottom:var(--spacing-md);line-height:1.7;text-align:justify}.hero-buttons{display:flex;gap:var(--spacing-md)}.btn{display:inline-block;padding:.5rem 1rem;border-radius:var(--radius-md);text-decoration:none;font-weight:var(--font-weight-semibold);font-size:.875rem;transition:all .2s ease;border:none;cursor:pointer}.btn-primary{background:var(--gradient-primary);color:#fff;box-shadow:0 4px 12px #d977064d,var(--shadow-md);position:relative;overflow:hidden}.btn-primary:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);transition:left .5s ease}.btn-primary:hover{background:var(--gradient-accent);transform:translateY(-2px);box-shadow:0 8px 20px #d9770666,var(--shadow-lg)}.btn-primary:hover:before{left:100%}.btn-secondary{background-color:transparent;color:var(--accent-primary);border:2px solid var(--accent-primary)}.btn-secondary:hover{background-color:var(--accent-primary);color:#fff}.social-buttons{display:flex;gap:var(--spacing-sm);align-items:center;margin-left:var(--spacing-md)}.social-btn{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;background-color:var(--social-bg);border:1px solid var(--social-border);transition:all .3s ease;text-decoration:none;box-shadow:var(--social-shadow)}.social-btn:hover{background-color:var(--social-hover-bg);border-color:var(--social-hover-border);transform:translateY(-2px);box-shadow:var(--social-hover-shadow)}.social-icon{width:20px;height:20px;filter:brightness(0) invert(1);transition:filter .3s ease}.social-btn:hover .social-icon{filter:brightness(0) invert(1) sepia(1) saturate(5) hue-rotate(25deg)}section{padding:var(--spacing-3xl) 0}.section-title{font-size:2.5rem;font-weight:var(--font-weight-bold);text-align:center;margin-bottom:var(--spacing-2xl);color:var(--text-primary);position:relative;display:inline-block;width:100%}.section-title:after{content:"";position:absolute;bottom:-12px;left:50%;transform:translate(-50%);width:60px;height:4px;background:var(--gradient-primary);border-radius:2px}.about{background:var(--gradient-section);position:relative}.about:before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--border-color),transparent)}.about-content{max-width:800px;margin:0 auto}.about-text{font-size:1.125rem;color:var(--text-secondary);margin-bottom:var(--spacing-lg);line-height:1.8;text-align:justify}.about-points{list-style:none;padding:0;margin:0;margin-top:var(--spacing-lg)}.about-points li{font-size:1.125rem;color:var(--text-secondary);line-height:1.8;margin-bottom:var(--spacing-md);padding-left:var(--spacing-lg);position:relative;text-align:justify}.about-points li:before{content:"•";position:absolute;left:0;color:var(--accent-primary);font-size:1.5rem;line-height:1;top:.1rem}.about-points li strong{color:var(--text-primary);font-weight:var(--font-weight-semibold)}.about-subsection{margin-bottom:var(--spacing-2xl)}.about-subsection:last-child{margin-bottom:0}.about-subsection-title{font-size:1.25rem;font-weight:var(--font-weight-semibold);color:var(--accent-primary);margin-bottom:var(--spacing-md);display:flex;align-items:center;gap:var(--spacing-sm)}.about-subsection-subtitle{margin-top:1.5rem;font-size:1.1rem;font-weight:600}.about-subsection-title:before{content:"";width:4px;height:1.5rem;background:var(--gradient-primary);border-radius:var(--radius-sm)}.skills-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:var(--spacing-lg)}.skill-category{background:var(--bg-card);padding:var(--spacing-lg);border-radius:var(--radius-md);border:1px solid var(--border-color);box-shadow:var(--shadow-sm);transition:all .3s ease;position:relative;overflow:hidden;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.skill-category:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--gradient-primary);transform:scaleX(0);transition:transform .3s ease;border-radius:var(--radius-md) var(--radius-md) 0 0}.skill-category:hover{box-shadow:var(--shadow-lg);transform:translateY(-6px);border-color:var(--accent-primary-light);background:var(--bg-alt)}.skill-category:hover:before{transform:scaleX(1)}.skill-category-title{font-size:1.25rem;font-weight:var(--font-weight-semibold);margin-bottom:var(--spacing-md);color:var(--text-primary)}.skill-tags{display:flex;flex-wrap:wrap;gap:var(--spacing-xs)}.skill-tag{display:inline-block;padding:.375rem .75rem;background-color:var(--bg-alt);color:var(--text-secondary);border-radius:var(--radius-sm);font-size:.875rem;font-weight:var(--font-weight-medium);border:1px solid var(--border-color)}.experience{background:var(--gradient-section);position:relative}.experience:before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--border-color),transparent)}.timeline{max-width:900px;margin:0 auto;position:relative}.timeline:before{content:"";position:absolute;left:30px;top:0;bottom:0;width:2px;background-color:var(--border-color)}.timeline-item{position:relative;padding-left:80px;margin-bottom:var(--spacing-2xl);animation:fadeInUp .6s ease-out}.timeline-item:before{content:"";position:absolute;left:22px;top:8px;width:16px;height:16px;border-radius:50%;background-color:var(--accent-primary);border:3px solid var(--bg-card);box-shadow:0 0 0 3px var(--border-color)}.timeline-card{background:var(--bg-card);padding:var(--spacing-lg);border-radius:var(--radius-md);border:1px solid var(--border-color);box-shadow:var(--shadow-sm);transition:all .3s ease;position:relative}.timeline-card:before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--gradient-primary);border-radius:var(--radius-sm) 0 0 var(--radius-sm);transform:scaleY(0);transition:transform .3s ease}.timeline-card:hover{box-shadow:var(--shadow-lg);border-color:var(--accent-primary-light);transform:translate(4px);background:linear-gradient(to right,var(--bg-card),var(--bg-secondary))}.timeline-card:hover:before{transform:scaleY(1)}.timeline-header{margin-bottom:var(--spacing-md)}.timeline-title{font-size:1.25rem;font-weight:var(--font-weight-semibold);color:var(--text-primary);margin-bottom:var(--spacing-xs)}.timeline-company{font-size:1rem;color:var(--accent-primary);font-weight:var(--font-weight-medium);margin-bottom:var(--spacing-xs)}.timeline-meta{font-size:.875rem;color:var(--text-tertiary);margin-bottom:var(--spacing-sm)}.timeline-tags{display:flex;flex-wrap:wrap;gap:var(--spacing-xs);margin-bottom:var(--spacing-md)}.timeline-tag{padding:.25rem .75rem;border-radius:var(--radius-sm);font-size:.75rem;font-weight:var(--font-weight-medium);color:#fff}.timeline-tag[data-category="Data Engineering"]{background-color:var(--badge-data-engineering)}.timeline-tag[data-category="Data Analysis"]{background-color:var(--badge-data-analysis)}.timeline-tag[data-category="Data Science"]{background-color:var(--badge-data-science)}.timeline-tag[data-category="Business Analytics"]{background-color:var(--badge-business-analytics)}.timeline-tag[data-category=Leadership],.timeline-tag[data-category=Mentorship],.timeline-tag[data-category="Career Development"],.timeline-tag[data-category="Supply Chain"],.timeline-tag[data-category=Simulation],.timeline-tag[data-category=Research]{background-color:var(--text-tertiary)}.timeline-bullets{list-style:none}.timeline-bullets li{padding-left:var(--spacing-md);position:relative;margin-bottom:var(--spacing-sm);color:var(--text-secondary);line-height:1.7;text-align:justify}.timeline-bullets li:before{content:"▸";position:absolute;left:0;color:var(--accent-primary);font-weight:var(--font-weight-bold)}.timeline-bullets li a{color:var(--accent-primary);text-decoration:none;font-weight:var(--font-weight-medium);transition:color .3s ease,text-decoration .3s ease}.timeline-bullets li a:hover{color:var(--accent-primary-dark);text-decoration:underline}.filter-buttons{display:flex;justify-content:center;flex-wrap:wrap;gap:var(--spacing-sm);margin-bottom:var(--spacing-2xl)}.filter-btn{padding:.625rem 1.25rem;border:1px solid var(--border-color);background-color:var(--bg-card);color:var(--text-secondary);border-radius:var(--radius-md);font-size:.9375rem;font-weight:var(--font-weight-medium);cursor:pointer;transition:all .2s ease}.filter-btn:hover{border-color:var(--accent-primary);color:var(--accent-primary)}.filter-btn.active{background:var(--gradient-primary);color:#fff;border-color:transparent;box-shadow:0 2px 8px #d977064d;font-weight:var(--font-weight-semibold)}.projects-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(350px,1fr));gap:var(--spacing-lg)}.project-card{background:var(--bg-card);border-radius:var(--radius-md);border:1px solid var(--border-color);box-shadow:var(--shadow-sm);overflow:hidden;transition:all .3s ease;opacity:1;transform:scale(1);position:relative}.project-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--gradient-primary);transform:scaleX(0);transition:transform .3s ease;z-index:1}.project-card:after{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(135deg,#d9770605,#c2410c05);opacity:0;transition:opacity .3s ease;pointer-events:none}.project-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-8px);border-color:var(--accent-primary-light)}.project-card:hover:before{transform:scaleX(1)}.project-card:hover:after{opacity:1}.project-card.hidden{display:none}.project-header{padding:var(--spacing-lg);border-bottom:1px solid var(--border-color)}.project-title{font-size:1.25rem;font-weight:var(--font-weight-semibold);color:var(--text-primary);margin-bottom:var(--spacing-sm)}.project-badges{display:flex;flex-wrap:wrap;gap:var(--spacing-xs);margin-bottom:var(--spacing-sm)}.project-badge{padding:.25rem .75rem;border-radius:var(--radius-sm);font-size:.75rem;font-weight:var(--font-weight-medium);color:#fff}.project-badge[data-category="Data Analysis"]{background-color:var(--badge-data-analysis)}.project-badge[data-category="Data Science"]{background-color:var(--badge-data-science)}.project-badge[data-category="Data Engineering"]{background-color:var(--badge-data-engineering)}.project-badge[data-category="LLM/Gen AI"]{background-color:var(--badge-llm)}.project-badge[data-category="Business 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var(--border-color)}.project-links{display:flex;gap:var(--spacing-md);margin-top:var(--spacing-md)}.project-link{color:var(--accent-primary);text-decoration:none;font-size:.9375rem;font-weight:var(--font-weight-medium);transition:color .2s ease}.project-link:hover{color:var(--accent-primary-dark);text-decoration:underline}.project-image{width:100%;height:auto;max-height:300px;object-fit:cover;border-bottom:1px solid var(--border-color);display:block}.project-iframe-container{margin:var(--spacing-md) 0;border-radius:var(--radius-sm);overflow:hidden;border:1px solid var(--border-color)}.project-iframe-container iframe{width:100%!important;height:auto!important;min-height:300px;border:none;display:block}.education{background:var(--gradient-section);position:relative}.education:before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--border-color),transparent)}.education-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(400px,1fr));gap:var(--spacing-lg);max-width:900px;margin:0 auto}.education-card{background:var(--bg-card);padding:var(--spacing-lg);border-radius:var(--radius-md);border:1px solid var(--border-color);box-shadow:var(--shadow-sm);transition:all .3s ease}.education-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);border-color:var(--accent-primary-light)}.education-degree{font-size:1.125rem;font-weight:var(--font-weight-semibold);color:var(--text-primary);margin-bottom:var(--spacing-xs)}.education-school{font-size:1rem;color:var(--accent-primary);font-weight:var(--font-weight-medium);margin-bottom:var(--spacing-xs)}.education-meta{font-size:.875rem;color:var(--text-tertiary);margin-bottom:var(--spacing-xs)}.education-gpa{font-size:.875rem;color:var(--text-secondary);font-weight:var(--font-weight-medium)}.certifications-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:var(--spacing-md);max-width:600px;margin:0 auto}.certification-card{background:var(--bg-card);padding:var(--spacing-md);border-radius:var(--radius-md);border:1px solid var(--border-color);box-shadow:var(--shadow-sm);text-align:center;transition:all .3s ease}.certification-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);border-color:var(--accent-primary-light)}.certification-name{font-size:1rem;font-weight:var(--font-weight-semibold);color:var(--text-primary);margin-bottom:var(--spacing-xs)}.certification-issuer{font-size:.875rem;color:var(--text-secondary);margin-bottom:var(--spacing-xs)}.certification-year{font-size:.75rem;color:var(--text-tertiary)}.resume{background:var(--gradient-section);text-align:center;position:relative}.resume:before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--border-color),transparent)}.resume-description{font-size:1.125rem;color:var(--text-secondary);margin-bottom:var(--spacing-lg)}.contact-content{max-width:700px;margin:0 auto}.contact-description{font-size:1.125rem;color:var(--text-secondary);text-align:center;margin-bottom:var(--spacing-2xl)}.contact-info{display:flex;flex-direction:column;gap:var(--spacing-md);margin-bottom:var(--spacing-2xl)}.contact-link{display:flex;align-items:center;gap:var(--spacing-md);color:var(--text-primary);text-decoration:none;font-size:1.125rem;padding:var(--spacing-md);background-color:var(--bg-alt);border-radius:var(--radius-md);border:1px solid var(--border-color);transition:all .2s ease}.contact-link:hover{background-color:var(--bg-hover);border-color:var(--accent-primary);color:var(--accent-primary)}.contact-icon{font-size:1.5rem}.contact-form{background-color:var(--bg-alt);padding:var(--spacing-xl);border-radius:var(--radius-md);border:1px solid var(--border-color)}.form-group{margin-bottom:var(--spacing-md)}.form-group input,.form-group textarea{width:100%;padding:.875rem;border:1px solid var(--border-color);border-radius:var(--radius-md);font-family:var(--font-family);font-size:1rem;color:var(--text-primary);background-color:var(--bg-card);transition:border-color .2s ease}.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--accent-primary);box-shadow:0 0 0 3px #d977061a}.form-group textarea{resize:vertical;min-height:120px}.form-message{padding:var(--spacing-md);border-radius:var(--radius-md);margin-bottom:var(--spacing-md);font-weight:var(--font-weight-medium);text-align:center}.hidden{display:none}.footer{background-color:var(--bg-secondary);color:var(--text-primary);padding:var(--spacing-xl) 0;border-top:1px solid var(--border-color)}.footer-content{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:var(--spacing-md)}.footer-links{display:flex;gap:var(--spacing-lg)}.footer-links a{color:var(--text-secondary);text-decoration:none;font-size:.9375rem;transition:color .2s ease}.footer-links a:hover{color:var(--accent-primary)}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:fadeInUp .6s ease-out}.blog-hero{padding:var(--spacing-3xl) 0 var(--spacing-2xl);text-align:center;background:var(--gradient-hero)}.blog-hero-title{font-size:3.5rem;font-weight:var(--font-weight-bold);color:var(--text-primary);margin-bottom:var(--spacing-md)}.blog-hero-description{font-size:1.25rem;color:var(--text-secondary);max-width:700px;margin:0 auto}.blog-content{padding:var(--spacing-2xl) 0}#blog-categories{max-width:1000px;margin:0 auto}.blog-platform-section{margin-bottom:var(--spacing-3xl)}.blog-platform-header{display:flex;align-items:baseline;gap:var(--spacing-sm);margin-bottom:var(--spacing-xl);padding-bottom:var(--spacing-md);border-bottom:2px solid var(--border-color)}.blog-platform-title{font-size:2rem;font-weight:var(--font-weight-bold);color:var(--text-primary)}.blog-platform-count{font-size:1rem;color:var(--text-tertiary);font-weight:var(--font-weight-regular)}.blog-posts-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:var(--spacing-lg)}.blog-post-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:var(--spacing-lg);transition:transform .3s ease,box-shadow .3s ease;height:100%;display:flex;flex-direction:column}.blog-post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--accent-primary-light)}.blog-post-content{display:flex;flex-direction:column;height:100%}.blog-post-title{font-size:1.25rem;font-weight:var(--font-weight-semibold);margin-bottom:var(--spacing-sm);line-height:1.4}.blog-post-title a{color:var(--text-primary);text-decoration:none;transition:color .2s ease}.blog-post-title a:hover{color:var(--accent-primary)}.blog-post-meta{margin-bottom:var(--spacing-md)}.blog-post-date{font-size:.875rem;color:var(--text-tertiary)}.blog-post-excerpt{color:var(--text-secondary);line-height:1.6;margin-bottom:var(--spacing-md);flex-grow:1}.blog-post-link{color:var(--accent-primary);text-decoration:none;font-weight:var(--font-weight-medium);transition:color .2s ease;align-self:flex-start}.blog-post-link:hover{color:var(--accent-primary-dark)}.blog-empty{text-align:center;padding:var(--spacing-3xl);color:var(--text-secondary);font-size:1.125rem}.publications-hero{padding:var(--spacing-3xl) 0 var(--spacing-2xl);text-align:center;background:var(--gradient-hero)}.publications-hero-title{font-size:3.5rem;font-weight:var(--font-weight-bold);color:var(--text-primary);margin-bottom:var(--spacing-md)}.publications-hero-description{font-size:1.25rem;color:var(--text-secondary);max-width:700px;margin:0 auto var(--spacing-lg)}.citation-count{color:var(--accent-primary);font-weight:var(--font-weight-semibold);font-size:.9em}.publications-google-scholar{margin-top:var(--spacing-lg)}.publications-content{padding:var(--spacing-2xl) 0}#publications-list{max-width:900px;margin:0 auto}.publications-year-section{margin-bottom:var(--spacing-3xl)}.publications-year-title{font-size:2rem;font-weight:var(--font-weight-bold);color:var(--text-primary);margin-bottom:var(--spacing-lg);padding-bottom:var(--spacing-sm);border-bottom:2px solid var(--border-color)}.publications-list{display:flex;flex-direction:column;gap:var(--spacing-lg)}.publication-item{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:var(--spacing-lg);transition:transform .3s ease,box-shadow .3s 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a:hover{color:var(--accent-primary)}.publication-authors{color:var(--text-secondary);font-size:1rem;font-style:italic;margin-bottom:var(--spacing-xs)}.publication-venue{color:var(--text-secondary);font-size:.9375rem;margin-bottom:var(--spacing-sm)}.publication-meta{display:flex;gap:var(--spacing-md);align-items:center;margin-top:var(--spacing-xs)}.publication-year{font-size:.875rem;color:var(--text-tertiary);font-weight:var(--font-weight-medium)}.publication-citations{font-size:.875rem;color:var(--accent-primary);font-weight:var(--font-weight-medium)}.publications-empty{text-align:center;padding:var(--spacing-3xl);color:var(--text-secondary);font-size:1.125rem}.business-models-container{max-width:1400px;margin:0 auto}.business-models-header{margin-bottom:var(--spacing-xl)}.progress-notice{background:var(--bg-alt);border-left:4px solid var(--accent-success);padding:var(--spacing-md);margin-bottom:var(--spacing-lg);border-radius:var(--radius-md)}.progress-notice p{margin:0;color:var(--text-secondary);font-size:.9375rem}.search-container{margin-bottom:var(--spacing-lg)}.search-input{width:100%;max-width:500px;padding:var(--spacing-sm) var(--spacing-md);border:1px solid var(--border-color);border-radius:var(--radius-md);font-size:1rem;font-family:var(--font-family);transition:border-color .3s ease,box-shadow .3s ease}.search-input:focus{outline:none;border-color:var(--accent-primary);box-shadow:0 0 0 3px #d977061a}.business-models-table-container{overflow-x:auto;background:var(--bg-card);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);margin-bottom:var(--spacing-xl)}.business-models-table{width:100%;border-collapse:collapse}.business-models-table thead{background:var(--gradient-primary);color:#fff}.business-models-table th{padding:var(--spacing-md) var(--spacing-lg);text-align:left;font-weight:var(--font-weight-semibold);font-size:.9375rem}.business-models-table th.sortable{cursor:pointer;-webkit-user-select:none;user-select:none;transition:background-color .2s ease}.business-models-table th.sortable:hover{background-color:#ffffff1a}.sort-indicator{margin-left:var(--spacing-xs);font-size:.875rem;opacity:.8}.business-models-table tbody tr{border-bottom:1px solid var(--border-color);transition:background-color .2s ease}.business-models-table tbody tr:hover{background-color:var(--bg-hover)}.business-models-table tbody tr.table-row-even{background-color:var(--bg-card)}.business-models-table tbody tr.table-row-odd{background-color:var(--bg-secondary)}.business-models-table td{padding:var(--spacing-md) var(--spacing-lg);vertical-align:top}.table-cell-model{font-weight:var(--font-weight-semibold);font-size:1.125rem}.model-link{color:var(--accent-primary);text-decoration:none;transition:color .2s 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0 var(--spacing-2xl);text-align:center;background:var(--gradient-hero)}.podcast-hero-title{font-size:3.5rem;font-weight:var(--font-weight-bold);color:var(--text-primary);margin-bottom:var(--spacing-md)}.podcast-hero-subtitle{font-size:1.5rem;font-weight:var(--font-weight-medium);color:var(--accent-primary);margin-bottom:var(--spacing-lg)}.podcast-hero-description{font-size:1.125rem;color:var(--text-secondary);max-width:700px;margin:0 auto var(--spacing-xl);line-height:1.7}.podcast-platforms-section{padding:var(--spacing-3xl) 0;background:var(--gradient-section)}.podcast-platforms-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--spacing-lg);max-width:1000px;margin:0 auto}.podcast-platform-card{display:flex;flex-direction:column;align-items:center;padding:var(--spacing-xl);background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);text-decoration:none;color:var(--text-primary);transition:all .3s ease;box-shadow:var(--shadow-sm)}.podcast-platform-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:var(--accent-primary)}.platform-icon{font-size:3rem;margin-bottom:var(--spacing-md)}.platform-name{font-size:1.125rem;font-weight:var(--font-weight-semibold);text-align:center}.podcast-platform-card.spotify:hover .platform-icon{color:#1db954}.podcast-platform-card.apple:hover .platform-icon{color:#000}.podcast-platform-card.amazon:hover .platform-icon{color:#f90}.podcast-platform-card.castbox:hover .platform-icon{color:#ff6b35}.podcast-platform-card.goodpods:hover .platform-icon{color:#8b5cf6}.podcast-achievements-section{padding:var(--spacing-3xl) 0}.achievements-description{font-size:1.125rem;color:var(--text-secondary);text-align:center;margin-bottom:var(--spacing-2xl);max-width:800px;margin-left:auto;margin-right:auto;line-height:1.7}.achievements-gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(650px,1fr));gap:var(--spacing-xl);max-width:1700px;margin:0 auto}.achievement-item{text-align:center}.achievement-image{width:100%;max-width:600px;height:auto;border-radius:var(--radius-lg);box-shadow:var(--shadow-md);margin-bottom:var(--spacing-md);transition:transform .3s ease}.achievement-image:hover{transform:scale(1.05)}.achievement-caption{font-size:1rem;color:var(--text-secondary);font-weight:var(--font-weight-medium)}.business-model-detail{max-width:900px;margin:0 auto}.model-header{background:var(--bg-card);border-radius:var(--radius-lg);padding:var(--spacing-xl);margin-bottom:var(--spacing-xl);box-shadow:var(--shadow-md)}.model-title{font-size:2.5rem;font-weight:var(--font-weight-bold);color:var(--text-primary);margin-bottom:var(--spacing-lg)}.model-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--spacing-lg)}.model-stat{padding:var(--spacing-md);background:var(--bg-secondary);border-radius:var(--radius-md)}.model-stat-label{font-size:.875rem;color:var(--text-secondary);margin-bottom:var(--spacing-xs)}.model-stat-value{font-size:1.75rem;font-weight:var(--font-weight-bold);color:var(--accent-primary);margin-bottom:var(--spacing-xs)}.model-stat-note{font-size:.75rem;color:var(--text-tertiary);line-height:1.4}.model-section{background:var(--bg-card);border-radius:var(--radius-lg);padding:var(--spacing-xl);margin-bottom:var(--spacing-lg);box-shadow:var(--shadow-md)}.model-section-title{font-size:1.5rem;font-weight:var(--font-weight-semibold);color:var(--text-primary);margin-bottom:var(--spacing-md);padding-bottom:var(--spacing-sm);border-bottom:2px solid var(--border-color)}.model-industries-list{list-style:none;padding:0;margin:0}.model-industries-list li{padding:var(--spacing-sm) 0;color:var(--text-secondary);border-bottom:1px solid var(--border-color);line-height:1.6}.model-industries-list li:last-child{border-bottom:none}.model-insights{color:var(--text-secondary);line-height:1.8}.model-insights p{margin-bottom:var(--spacing-md)}.model-insights p:last-child{margin-bottom:0}.model-sources{color:var(--text-tertiary);font-size:.875rem;font-style:italic}.model-actions{margin-top:var(--spacing-xl);text-align:center}@media (max-width: 768px){.nav-links{gap:var(--spacing-md);font-size:.875rem}.dropdown-menu{left:auto;right:0;transform:translate(0) translateY(-10px);min-width:140px}.nav-dropdown.active .dropdown-menu{transform:translate(0) translateY(0)}.dropdown-sub-menu{position:static;transform:none;opacity:1;visibility:visible;box-shadow:none;border:none;padding-left:var(--spacing-md);margin-top:var(--spacing-xs)}.nav-dropdown-sub.active .dropdown-sub-menu{display:block}.hero-content{grid-template-columns:1fr;text-align:center}.hero-title{font-size:2.5rem}.hero-subtitle{font-size:1.25rem}.hero-buttons{flex-direction:column;align-items:center}.social-buttons{margin-left:0;margin-top:var(--spacing-md);justify-content:center}.section-title{font-size:2rem}.projects-grid,.skills-grid{grid-template-columns:1fr}.timeline:before{left:15px}.timeline-item{padding-left:50px}.timeline-item:before{left:7px}.education-grid{grid-template-columns:1fr}.footer-content{flex-direction:column;text-align:center}.blog-hero-title{font-size:2.5rem}.blog-hero-description{font-size:1.125rem}.blog-platform-title{font-size:1.75rem}.blog-posts-grid{grid-template-columns:1fr}.publications-hero-title{font-size:2.5rem}.publications-hero-description{font-size:1.125rem}.publications-year-title{font-size:1.75rem}}@media (max-width: 480px){.container{padding:0 var(--spacing-md)}.hero-title{font-size:2rem}.filter-buttons{gap:var(--spacing-xs)}.blog-hero-title{font-size:2rem}.blog-platform-title{font-size:1.5rem}.publications-hero-title{font-size:2rem}.publications-year-title{font-size:1.5rem}.filter-btn{padding:.5rem 1rem;font-size:.875rem}.business-models-table-container{overflow-x:auto}.business-models-table{font-size:.875rem}.business-models-table th,.business-models-table td{padding:var(--spacing-sm) var(--spacing-md)}.table-cell-industries{max-width:250px}.business-models-stats{grid-template-columns:1fr}.model-title{font-size:2rem}.model-stats{grid-template-columns:1fr}.podcast-hero-title{font-size:2.5rem}.podcast-hero-subtitle{font-size:1.25rem}.podcast-hero-description{font-size:1rem}.podcast-platforms-grid{grid-template-columns:1fr;gap:var(--spacing-md)}.podcast-platform-card{padding:var(--spacing-lg)}.platform-icon{font-size:2.5rem}.achievements-gallery{grid-template-columns:1fr}.achievement-image{max-width:450px}}.theme-toggle{position:fixed;bottom:2rem;right:2rem;width:50px;height:50px;border-radius:50%;background:var(--bg-card);border:2px solid var(--border-color);color:var(--text-primary);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1.25rem;box-shadow:var(--shadow-lg);transition:all .3s ease;z-index:1001;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.theme-toggle:hover{transform:scale(1.1);box-shadow:var(--shadow-xl);border-color:var(--accent-primary)}.theme-toggle:active{transform:scale(.95)}*{transition:background-color .3s ease,color .3s ease,border-color .3s ease,box-shadow .3s ease}.theme-toggle,.navbar,body,.social-btn{transition-duration:.2s}