:root{--color-primary: #7c3aed;--color-primary-light: #a78bfa;--color-primary-dark: #5b21b6;--color-success: #10b981;--color-warning: #f59e0b;--color-danger: #ef4444;--color-bg: #f5f7fa;--color-card: #ffffff;--color-text: #1e293b;--color-text-muted: #64748b;--color-border: #e2e8f0;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .07), 0 2px 4px -2px rgb(0 0 0 / .07);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--radius: 16px;--radius-sm: 8px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--color-bg);color:var(--color-text);min-height:100vh;display:flex;flex-direction:column}.nav{background:var(--color-card);border-bottom:1px solid var(--color-border);padding:0 2rem;height:72px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:100}.nav-brand{font-size:1.375rem;font-weight:600;text-decoration:none;display:flex;align-items:center}.brand-this{color:var(--color-text);font-weight:400}.brand-matters{color:var(--color-text);font-weight:700}.nav-links{display:flex;align-items:center;gap:.5rem}.nav-link{color:var(--color-text-muted);text-decoration:none;font-size:.875rem;font-weight:500;display:flex;align-items:center;gap:.5rem;padding:.625rem 1rem;border-radius:9999px;transition:all .2s}.nav-link:hover{color:var(--color-text);background:var(--color-bg)}.nav-link.active{color:var(--color-primary);background:#7c3aed14}.nav-icon{display:flex;align-items:center;justify-content:center;width:20px;height:20px}.nav-right{display:flex;align-items:center;gap:.75rem}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.625rem 1.25rem;border-radius:9999px;font-size:.875rem;font-weight:500;cursor:pointer;border:none;transition:all .2s;text-decoration:none}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover{background:var(--color-primary-dark)}.btn-ghost{background:transparent;color:var(--color-text-muted);padding:.5rem}.btn-ghost:hover{color:var(--color-text);background:var(--color-bg)}.btn-outline{background:transparent;color:var(--color-primary);border:1.5px solid var(--color-primary)}.btn-outline:hover{background:#7c3aed14}.main{flex:1;max-width:1280px;width:100%;margin:0 auto;padding:2rem}.page-header{margin-bottom:2rem}.page-label{display:inline-block;color:var(--color-primary);font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.15em;margin-bottom:.5rem}.page-title{font-size:1.75rem;font-weight:600;color:var(--color-text);margin-bottom:.5rem}.page-description{color:var(--color-text-muted);font-size:.9375rem;max-width:700px}.card{background:var(--color-card);border-radius:var(--radius);box-shadow:var(--shadow-md);padding:1.5rem}.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1rem}.card-title{font-size:1rem;font-weight:600;color:var(--color-text);display:flex;align-items:center;gap:.5rem}.info-icon{width:18px;height:18px;border-radius:50%;background:var(--color-bg);color:var(--color-text-muted);font-size:.625rem;display:flex;align-items:center;justify-content:center;cursor:help;font-weight:600}.period-select-wrapper{display:flex;flex-direction:column;align-items:flex-end}.period-label{font-size:.6875rem;color:var(--color-text-muted);margin-bottom:.125rem}.period-select{appearance:none;background:var(--color-card);border:1px solid var(--color-border);border-radius:var(--radius-sm);padding:.5rem 2rem .5rem .75rem;font-size:.8125rem;font-weight:500;color:var(--color-text);cursor:pointer;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right .5rem center}.tabs{display:flex;gap:.375rem;margin-bottom:1.25rem}.tab{padding:.5rem 1rem;border-radius:9999px;font-size:.8125rem;font-weight:500;cursor:pointer;border:none;background:transparent;color:var(--color-text-muted);transition:all .2s}.tab:hover{background:var(--color-bg);color:var(--color-text)}.tab.active{background:var(--color-primary);color:#fff}.footer{background:var(--color-card);border-top:1px solid var(--color-border);padding:1.5rem 2rem;margin-top:auto}.footer-content{max-width:1280px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;font-size:.8125rem;color:var(--color-text-muted)}.heart{color:#ef4444}.footer-social{display:flex;gap:1rem}.footer-social a{color:var(--color-text-muted);transition:color .2s}.footer-social a:hover{color:var(--color-text)}@media (max-width: 768px){.nav{padding:0 1rem}.nav-links{display:none}.main{padding:1rem}.footer-content{flex-direction:column;gap:1rem;text-align:center}}