:root{--font-sans: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-heading: "Outfit", var(--font-sans);--font-mono: "Fira Code", "JetBrains Mono", monospace;--background: #fcfcfd;--foreground: #090d16;--card: #ffffff;--card-hover: #f8fafc;--border: #e4e7ec;--border-focus: #6366f1;--primary: #4f46e5;--primary-hover: #4338ca;--primary-light: #eef2ff;--muted: #f1f5f9;--muted-foreground: #64748b;--surface: #ffffff;--surface-border: #e2e8f0;--code-bg: #f8fafc;--accent-esp32: #e11d48;--accent-esp32-bg: rgba(225, 29, 72, .1);--accent-stm32: #0284c7;--accent-stm32-bg: rgba(2, 132, 199, .1);--accent-riscv: #d97706;--accent-riscv-bg: rgba(217, 119, 6, .1);--accent-rtos: #059669;--accent-rtos-bg: rgba(5, 150, 105, .1);--accent-kicad: #8b5cf6;--accent-kicad-bg: rgba(139, 92, 246, .1);--glass-bg: rgba(255, 255, 255, .85);--glass-border: rgba(228, 231, 236, .8);--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .08), 0 2px 4px -2px rgba(0, 0, 0, .05);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -4px rgba(0, 0, 0, .08);--shadow-glow: 0 0 25px rgba(99, 102, 241, .2);--radius: 10px}html.dark{--background: #0b0f19;--foreground: #f8fafc;--card: #111827;--card-hover: #162032;--border: #1f2937;--border-focus: #818cf8;--primary: #6366f1;--primary-hover: #4f46e5;--primary-light: rgba(99, 102, 241, .15);--muted: #1e293b;--muted-foreground: #94a3b8;--surface: #111827;--surface-border: #1f2937;--code-bg: #0d121f;--accent-esp32-bg: rgba(225, 29, 72, .2);--accent-stm32-bg: rgba(2, 132, 199, .2);--accent-riscv-bg: rgba(217, 119, 6, .2);--accent-rtos-bg: rgba(5, 150, 105, .2);--accent-kicad-bg: rgba(139, 92, 246, .2);--glass-bg: rgba(11, 15, 25, .85);--glass-border: rgba(31, 41, 55, .8);--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .3);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .4), 0 2px 4px -2px rgba(0, 0, 0, .3);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .5), 0 4px 6px -4px rgba(0, 0, 0, .4);--shadow-glow: 0 0 30px rgba(99, 102, 241, .3)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--background);color:var(--foreground);line-height:1.6;min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:background-color .25s ease,color .25s ease}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);font-weight:700;line-height:1.25}a{color:inherit;text-decoration:none}button,input,select,textarea{font-family:inherit;color:inherit}code,pre{font-family:var(--font-mono)}.glass-header{position:sticky;top:0;z-index:50;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);background-color:var(--glass-bg);border-bottom:1px solid var(--glass-border);transition:all .2s ease}.container{max-width:1280px;margin:0 auto;padding:0 1.5rem}.glow-effect{position:relative}.glow-effect:before{content:"";position:absolute;top:-20%;left:30%;width:40%;height:40%;background:radial-gradient(circle,#6366f126,#6366f100 70%);pointer-events:none;filter:blur(40px);z-index:-1}.badge{display:inline-flex;align-items:center;gap:.25rem;padding:.2rem .6rem;border-radius:9999px;font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.025em}.badge-esp32{color:var(--accent-esp32);background-color:var(--accent-esp32-bg);border:1px solid rgba(225,29,72,.3)}.badge-stm32{color:var(--accent-stm32);background-color:var(--accent-stm32-bg);border:1px solid rgba(2,132,199,.3)}.badge-riscv{color:var(--accent-riscv);background-color:var(--accent-riscv-bg);border:1px solid rgba(217,119,6,.3)}.badge-rtos{color:var(--accent-rtos);background-color:var(--accent-rtos-bg);border:1px solid rgba(5,150,105,.3)}.badge-kicad{color:var(--accent-kicad);background-color:var(--accent-kicad-bg);border:1px solid rgba(139,92,246,.3)}.badge-default{color:var(--muted-foreground);background-color:var(--muted);border:1px solid var(--border)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.6rem 1.2rem;border-radius:8px;font-weight:600;font-size:.875rem;cursor:pointer;transition:all .2s cubic-bezier(.4,0,.2,1);border:1px solid transparent}.btn-primary{background-color:var(--primary);color:#fff;box-shadow:0 1px 3px #0003}.btn-primary:hover{background-color:var(--primary-hover);box-shadow:var(--shadow-glow);transform:translateY(-1px)}.btn-secondary{background-color:var(--muted);color:var(--foreground);border:1px solid var(--border)}.btn-secondary:hover{background-color:var(--card-hover);border-color:var(--muted-foreground)}.btn-outline{background:transparent;color:var(--foreground);border:1px solid var(--border)}.btn-outline:hover{background-color:var(--muted);border-color:var(--muted-foreground)}.btn-icon{padding:.5rem;border-radius:8px;background:transparent;color:var(--muted-foreground);border:1px solid transparent;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s}.btn-icon:hover{background-color:var(--muted);color:var(--foreground);border-color:var(--border)}.card{background-color:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem;transition:all .25s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden}.card:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow-md)}.skill-card{display:flex;flex-direction:column;height:100%}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}.animate-pulse{animation:pulse 1.8s cubic-bezier(.4,0,.6,1) infinite}.skeleton-box{background-color:var(--muted);border-radius:6px}.markdown-body{line-height:1.7}.markdown-body h1,.markdown-body h2,.markdown-body h3{margin-top:1.5rem;margin-bottom:.75rem;font-weight:700}.markdown-body p{margin-bottom:1rem}.markdown-body ul,.markdown-body ol{margin-bottom:1rem;padding-left:1.5rem}.markdown-body li{margin-bottom:.35rem}.markdown-body pre{background-color:var(--code-bg);border:1px solid var(--border);border-radius:8px;padding:1rem;overflow-x:auto;margin-bottom:1.25rem;font-size:.875rem}.markdown-body code:not(pre code){background-color:var(--muted);padding:.15rem .4rem;border-radius:4px;font-size:.85em;color:var(--primary)}.markdown-body blockquote{border-left:4px solid var(--primary);padding:.75rem 1rem;background-color:var(--primary-light);border-radius:0 8px 8px 0;margin-bottom:1.25rem;color:var(--foreground)}.alert-callout{border-radius:8px;padding:1rem;margin:1rem 0;border-left:4px solid}.alert-tip{background-color:#0596691a;border-color:#059669}.alert-note{background-color:#6366f11a;border-color:#6366f1}.alert-warning{background-color:#d977061a;border-color:#d97706}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--muted);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--muted-foreground)}