:root{--color-bg: #f3f4f1;--color-card: #ffffff;--color-primary: #2f9e6e;--color-primary-dark: #227a54;--color-primary-light: #e4f5ec;--color-text: #1f2a24;--color-muted: #7c8a82;--color-border: #e6e8e4;--color-danger: #d8483c;--color-danger-light: #fdeceb;--color-food: #e8973f;--color-food-light: #fdf1e3;--color-symptom: #d8483c;--color-symptom-light: #fdeceb;--color-stool: #8a6a3e;--color-stool-light: #f1e9dc;--radius: 16px;--radius-sm: 10px;--shadow: 0 2px 10px rgba(30, 40, 35, .06), 0 1px 2px rgba(30, 40, 35, .04)}*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--color-bg);color:var(--color-text);-webkit-font-smoothing:antialiased}.app-shell{display:flex;flex-direction:column;min-height:100vh}.top-bar{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:14px 18px;background:linear-gradient(135deg,var(--color-primary),var(--color-primary-dark));color:#fff;font-weight:600;letter-spacing:.01em;box-shadow:0 2px 8px #0000001a}.top-bar-brand{display:flex;align-items:center;gap:8px}.top-bar-user{font-weight:400;font-size:.9rem;display:flex;gap:10px;align-items:center;opacity:.95}.icon-button{display:inline-flex;align-items:center;justify-content:center;background:#ffffff26;border:none;border-radius:999px;width:34px;height:34px;padding:0;color:#fff;cursor:pointer;transition:background .15s ease}.icon-button:hover{background:#ffffff47}.content{flex:1;padding:18px 16px 100px;max-width:640px;margin:0 auto;width:100%}.content h2{display:flex;align-items:center;gap:10px;font-size:1.3rem;margin:4px 0 18px}.bottom-nav{position:fixed;bottom:0;left:0;right:0;display:flex;justify-content:space-around;background:var(--color-card);border-top:1px solid var(--color-border);padding:6px 4px calc(6px + env(safe-area-inset-bottom));box-shadow:0 -2px 10px #0000000a}.bottom-nav a{flex:1;min-width:0;color:var(--color-muted);text-decoration:none;font-size:.64rem;font-weight:500;text-align:center;padding:6px 1px;min-height:48px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;border-radius:var(--radius-sm);transition:color .15s ease,background .15s ease}.bottom-nav a svg{flex-shrink:0;transition:transform .15s ease}.bottom-nav a span{max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.bottom-nav a.active{color:var(--color-primary);background:var(--color-primary-light)}.bottom-nav a.active svg{transform:translateY(-1px)}.card{background:var(--color-card);border-radius:var(--radius);padding:18px;margin-bottom:16px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:14px}label{display:flex;flex-direction:column;gap:6px;font-size:.9rem;font-weight:500;color:var(--color-text)}input,select,textarea{padding:11px 12px;border-radius:var(--radius-sm);border:1.5px solid var(--color-border);font-size:1rem;font-family:inherit;background:#fff;color:var(--color-text);transition:border-color .15s ease,box-shadow .15s ease}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-light)}textarea{min-height:72px;resize:vertical}button{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 18px;border-radius:var(--radius-sm);border:none;background:var(--color-primary);color:#fff;font-size:1rem;font-weight:600;cursor:pointer;transition:background .15s ease,transform .05s ease}button:hover{background:var(--color-primary-dark)}button:active{transform:scale(.98)}button:disabled{opacity:.6;cursor:default}button.link{background:none;color:var(--color-primary);padding:0;font-weight:500;text-decoration:none}button.link:hover{background:none;text-decoration:underline}button.icon-only{background:var(--color-danger-light);color:var(--color-danger);width:36px;height:36px;padding:0;border-radius:999px;flex-shrink:0}button.icon-only:hover{background:var(--color-danger);color:#fff}.tabs{display:flex;gap:4px;margin-bottom:4px;background:var(--color-bg);border-radius:var(--radius-sm);padding:4px}.tabs button{flex:1;background:transparent;color:var(--color-muted);font-weight:500;box-shadow:none}.tabs button.active{background:var(--color-card);color:var(--color-primary);box-shadow:0 1px 4px #00000014}.bristol-picker{display:flex;flex-direction:column;gap:6px}.bristol-picker button{background:#fff;color:var(--color-text);border:1.5px solid var(--color-border);text-align:left;justify-content:flex-start;font-weight:500;box-shadow:none}.bristol-picker button.active{background:var(--color-primary-light);color:var(--color-primary-dark);border-color:var(--color-primary)}.timeline{list-style:none;padding:0;display:flex;flex-direction:column;gap:10px}.timeline-item{display:flex;gap:12px;background:var(--color-card);padding:12px 14px;border-radius:var(--radius);align-items:center;box-shadow:var(--shadow)}.timeline-icon{display:flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:999px;flex-shrink:0;color:#fff}.timeline-food .timeline-icon{background:var(--color-food)}.timeline-symptom .timeline-icon{background:var(--color-symptom)}.timeline-stool .timeline-icon{background:var(--color-stool)}.timeline-body{display:flex;flex-direction:column;gap:2px;min-width:0}.timeline-time{font-weight:600;color:var(--color-muted);font-size:.78rem}.timeline-text{font-size:.95rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.history-list{list-style:none;padding:0}.history-list .card{flex-direction:row;align-items:flex-start;gap:12px}.history-list .card>div{flex:1;min-width:0}.history-entry-head{display:flex;align-items:center;gap:8px;margin-bottom:2px}.history-entry-head strong{font-size:.85rem;color:var(--color-muted);font-weight:600}.muted{color:var(--color-muted);font-size:.9rem}.error{color:var(--color-danger);font-size:.9rem}.empty-state{text-align:center;color:var(--color-muted);padding:40px 16px}.report-content{white-space:pre-wrap;font-family:inherit;font-size:.92rem;line-height:1.5}.pattern-info{display:flex;flex-direction:column;gap:4px;padding:12px 0;border-top:1px solid var(--color-border)}.pattern-info:first-of-type{border-top:none;padding-top:0}.pattern-info strong{color:var(--color-primary-dark)}.centered-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:16px;background:linear-gradient(160deg,var(--color-primary-light),var(--color-bg) 60%)}.login-form{width:100%;max-width:360px;align-items:center;text-align:center}.login-logo{display:flex;align-items:center;justify-content:center;width:56px;height:56px;border-radius:999px;background:var(--color-primary);color:#fff;margin-bottom:4px}.login-form h1{margin:0}.login-form label{width:100%;text-align:left}.login-form button{width:100%;margin-top:4px}