:root{--color-bg: #0f0f17;--color-bg-card: #1a1a2e;--color-bg-input: #252540;--color-bg-hover: #2a2a45;--color-border: #2a2a45;--color-text: #e4e4ef;--color-text-dim: #8888a0;--color-text-muted: #55556a;--color-primary: #fe7c01;--color-primary-hover: #feb211;--color-danger: #e52500;--color-success: #22c55e;--color-warning: #f59e0b;--color-period: #e74c6f;--color-fertile: #4ecdc4;--color-ovulation: #7c6fff;--color-safe: #22c55e;--radius: 12px;--radius-sm: 8px;--radius-lg: 16px;--shadow: 0 2px 8px rgba(0, 0, 0, .3);--max-width: 480px}[data-theme=light]{--color-bg: #f5f5f5;--color-bg-card: #ffffff;--color-bg-input: #f0f0f0;--color-bg-hover: #e8e8e8;--color-border: #e0e0e0;--color-text: #1b1b1b;--color-text-dim: #666666;--color-text-muted: #999999;--shadow: 0 2px 8px rgba(0, 0, 0, .08)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{height:100%}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--color-bg);color:var(--color-text);min-height:100%;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root{min-height:100vh;display:flex;flex-direction:column}a{color:var(--color-primary);text-decoration:none}a:hover{color:var(--color-primary-hover)}button{cursor:pointer;font-family:inherit}input,textarea,select{font-family:inherit}.container{max-width:var(--max-width);width:100%;margin:0 auto;padding:0 16px}.card{background:var(--color-bg-card);border-radius:var(--radius);border:1px solid var(--color-border);padding:16px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:var(--radius-sm);border:none;font-size:15px;font-weight:600;transition:all .15s ease}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover{background:var(--color-primary-hover)}.btn-secondary{background:var(--color-bg-input);color:var(--color-text);border:1px solid var(--color-border)}.btn-secondary:hover{background:var(--color-bg-hover)}.input{width:100%;padding:12px 16px;background:var(--color-bg-input);border:1px solid var(--color-border);border-radius:var(--radius-sm);color:var(--color-text);font-size:15px;outline:none;transition:border-color .15s}.input:focus{border-color:var(--color-primary)}.input::placeholder{color:var(--color-text-muted)}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.skeleton{background:linear-gradient(90deg,var(--color-bg-input) 25%,var(--color-bg-hover) 50%,var(--color-bg-input) 75%);background-size:200% 100%;animation:shimmer 1.5s ease-in-out infinite;border-radius:var(--radius-sm)}