@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;600;700;800&family=DM+Sans:wght@300;400;500;600&display=swap');

:root {
  --teal: #00d4aa;
  --teal-dim: rgba(0, 212, 170, 0.15);
  --teal-glow: 0 0 24px rgba(0, 212, 170, 0.4);
  --navy: #0a0f1e;
  --navy-2: #111827;
  --navy-3: #1a2235;
  --glass: rgba(255,255,255,0.05);
  --glass-border: rgba(255,255,255,0.08);
  --text: #e2e8f0;
  --text-dim: #8896a8;
  --amber: #f59e0b;
  --red: #ef4444;
  --green: #10b981;
  --font-head: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--navy);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── BACKGROUND MESH ──────────────────────────────────────────────────────── */
.bg-mesh {
  position: fixed; inset: 0; z-index: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 10%, rgba(0,212,170,0.07) 0%, transparent 60%),
    radial-gradient(ellipse 60% 80% at 80% 80%, rgba(0,100,200,0.06) 0%, transparent 60%),
    radial-gradient(ellipse 50% 50% at 50% 50%, rgba(10,15,30,1) 0%, var(--navy) 100%);
  pointer-events: none;
}

/* ── ORBS ─────────────────────────────────────────────────────────────────── */
.orb { position: fixed; border-radius: 50%; filter: blur(80px); opacity: 0.25; pointer-events: none; z-index: 0; }
.orb-1 { width:400px; height:400px; background:var(--teal); top:-100px; left:-100px; animation:float1 18s ease-in-out infinite; }
.orb-2 { width:300px; height:300px; background:#0064c8; bottom:-80px; right:-80px; animation:float2 22s ease-in-out infinite; }
.orb-3 { width:200px; height:200px; background:var(--teal); top:50%; left:60%; animation:float3 15s ease-in-out infinite; }

@keyframes float1 { 0%,100%{transform:translate(0,0)} 33%{transform:translate(60px,40px)} 66%{transform:translate(-30px,60px)} }
@keyframes float2 { 0%,100%{transform:translate(0,0)} 33%{transform:translate(-50px,-30px)} 66%{transform:translate(40px,-60px)} }
@keyframes float3 { 0%,100%{transform:translate(0,0)} 50%{transform:translate(-40px,50px)} }

/* ── PAGE WRAPPER ─────────────────────────────────────────────────────────── */
.page { position: relative; z-index: 1; min-height: 100vh; }

/* ── NAVBAR ───────────────────────────────────────────────────────────────── */
nav {
  position: fixed; top:0; left:0; right:0; z-index:100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 2rem;
  backdrop-filter: blur(20px);
  background: rgba(10,15,30,0.7);
  border-bottom: 1px solid var(--glass-border);
}
.nav-logo { font-family:var(--font-head); font-size:1.4rem; font-weight:800; color:var(--teal); text-decoration:none; text-shadow:var(--teal-glow); letter-spacing:-0.02em; }
.nav-logo span { color: var(--text); }
.nav-right { display:flex; align-items:center; gap:1rem; }
.nav-user { display:flex; align-items:center; gap:0.6rem; font-size:0.85rem; color:var(--text-dim); }
.nav-user img { width:32px; height:32px; border-radius:50%; border:1px solid var(--glass-border); }
.btn-signout { background:transparent; border:1px solid var(--glass-border); color:var(--text-dim); padding:0.35rem 0.9rem; border-radius:6px; font-family:var(--font-body); font-size:0.8rem; cursor:pointer; transition:all 0.2s; }
.btn-signout:hover { border-color:var(--teal); color:var(--teal); }

/* ── GLASS CARD ───────────────────────────────────────────────────────────── */
.card { background:var(--glass); border:1px solid var(--glass-border); border-radius:16px; backdrop-filter:blur(16px); padding:2rem; }

/* ── BUTTONS ──────────────────────────────────────────────────────────────── */
.btn-primary {
  display:inline-flex; align-items:center; justify-content:center; gap:0.5rem;
  background:var(--teal); color:var(--navy); font-family:var(--font-body);
  font-size:1rem; font-weight:600; padding:0.85rem 2rem; border:none;
  border-radius:10px; cursor:pointer; transition:all 0.25s; text-decoration:none;
}
.btn-primary:hover { transform:translateY(-2px); box-shadow:var(--teal-glow); }
.btn-outline {
  display:inline-flex; align-items:center; justify-content:center; gap:0.5rem;
  background:transparent; color:var(--teal); font-family:var(--font-body);
  font-size:1rem; font-weight:500; padding:0.85rem 2rem; border:1px solid var(--teal);
  border-radius:10px; cursor:pointer; transition:all 0.25s; text-decoration:none;
}
.btn-outline:hover { background:var(--teal-dim); transform:translateY(-2px); }

/* ── FORM ELEMENTS ────────────────────────────────────────────────────────── */
.form-group { margin-bottom:1.25rem; }
.form-label { display:block; font-size:0.82rem; font-weight:600; color:var(--text-dim); margin-bottom:0.4rem; text-transform:uppercase; letter-spacing:0.06em; }
.form-control { width:100%; background:rgba(255,255,255,0.04); border:1px solid var(--glass-border); border-radius:8px; color:var(--text); font-family:var(--font-body); font-size:0.95rem; padding:0.7rem 1rem; transition:border-color 0.2s,box-shadow 0.2s; appearance:none; -webkit-appearance:none; }
.form-control:focus { outline:none; border-color:var(--teal); box-shadow:0 0 0 3px rgba(0,212,170,0.1); }
select.form-control { background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2300d4aa' fill='none' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E"); background-repeat:no-repeat; background-position:right 1rem center; padding-right:2.5rem; }
select.form-control option { background:var(--navy-2); color:var(--text); }

/* ── SECTION LABEL ────────────────────────────────────────────────────────── */
.section-label { font-family:var(--font-head); font-size:0.75rem; font-weight:700; color:var(--teal); text-transform:uppercase; letter-spacing:0.12em; margin:1.8rem 0 1rem; padding-bottom:0.4rem; border-bottom:1px solid var(--teal-dim); }

/* ── PROGRESS BAR ─────────────────────────────────────────────────────────── */
.progress-wrap { background:rgba(255,255,255,0.06); border-radius:999px; height:4px; margin-bottom:2rem; overflow:hidden; }
.progress-bar { height:100%; background:var(--teal); border-radius:999px; transition:width 0.4s ease; box-shadow:0 0 8px rgba(0,212,170,0.5); }

/* ── RISK COLOURS ─────────────────────────────────────────────────────────── */
.risk-low    { color:var(--green); }
.risk-medium { color:var(--amber); }
.risk-high   { color:var(--red); }
.risk-bar-track { background:rgba(255,255,255,0.06); border-radius:999px; height:8px; overflow:hidden; margin:0.5rem 0; }
.risk-bar-fill { height:100%; border-radius:999px; width:0; transition:width 1s cubic-bezier(0.4,0,0.2,1); }
.risk-bar-fill.low    { background:linear-gradient(90deg,#059669,#10b981); }
.risk-bar-fill.medium { background:linear-gradient(90deg,#d97706,#f59e0b); }
.risk-bar-fill.high   { background:linear-gradient(90deg,#dc2626,#ef4444); }

/* ── ACCORDION ────────────────────────────────────────────────────────────── */
.accordion-btn { width:100%; background:rgba(255,255,255,0.03); border:1px solid var(--glass-border); border-radius:8px; color:var(--text-dim); font-family:var(--font-body); font-size:0.82rem; padding:0.6rem 1rem; cursor:pointer; text-align:left; display:flex; justify-content:space-between; align-items:center; transition:all 0.2s; margin-top:0.75rem; }
.accordion-btn:hover { border-color:var(--teal); color:var(--teal); }
.accordion-content { overflow:hidden; max-height:0; transition:max-height 0.35s ease; }
.accordion-content.open { max-height:500px; }
.factor-row { display:flex; align-items:center; justify-content:space-between; padding:0.4rem 0; font-size:0.82rem; border-bottom:1px solid rgba(255,255,255,0.04); }
.factor-positive { color:#ef4444; }
.factor-negative { color:#10b981; }

/* ── LOADER ───────────────────────────────────────────────────────────────── */
#loader { position:fixed; inset:0; z-index:9000; background:var(--navy); display:flex; flex-direction:column; align-items:center; justify-content:center; gap:1.5rem; opacity:0; pointer-events:none; transition:opacity 0.3s; }
#loader.show { opacity:1; pointer-events:all; }
.pulse-ring { width:80px; height:80px; border-radius:50%; border:2px solid var(--teal); animation:pulse-out 1.4s ease-out infinite; }
@keyframes pulse-out { 0%{transform:scale(0.9);opacity:1} 100%{transform:scale(1.6);opacity:0} }
.pulse-dot { position:absolute; width:20px; height:20px; background:var(--teal); border-radius:50%; box-shadow:var(--teal-glow); }
.loader-wrap { position:relative; width:80px; height:80px; display:flex; align-items:center; justify-content:center; }
#loader p { color:var(--text-dim); font-size:0.95rem; letter-spacing:0.05em; }

/* ── DISEASE CARD ─────────────────────────────────────────────────────────── */
.disease-card { background:var(--glass); border:1px solid var(--glass-border); border-radius:16px; backdrop-filter:blur(16px); padding:1.5rem; opacity:0; transform:translateY(20px); transition:opacity 0.5s ease,transform 0.5s ease,border-color 0.2s; }
.disease-card.visible { opacity:1; transform:translateY(0); }
.disease-card:hover { border-color:rgba(0,212,170,0.3); }
.disease-header { display:flex; align-items:center; justify-content:space-between; margin-bottom:0.75rem; }
.disease-name { font-family:var(--font-head); font-size:1.05rem; font-weight:700; display:flex; align-items:center; gap:0.5rem; }
.disease-risk-pct { font-family:var(--font-head); font-size:2rem; font-weight:800; line-height:1; }
.rec-box { background:rgba(0,212,170,0.05); border:1px solid rgba(0,212,170,0.15); border-radius:8px; padding:0.75rem; font-size:0.82rem; color:var(--text-dim); margin:0.75rem 0; display:flex; gap:0.5rem; }

/* ── SUMMARY PILLS ────────────────────────────────────────────────────────── */
.pill-row { display:flex; flex-wrap:wrap; gap:0.5rem; margin-bottom:2rem; }
.pill { padding:0.3rem 0.9rem; border-radius:999px; font-size:0.78rem; font-weight:600; border:1px solid; }
.pill.low    { border-color:var(--green); color:var(--green); background:rgba(16,185,129,0.1); }
.pill.medium { border-color:var(--amber); color:var(--amber); background:rgba(245,158,11,0.1); }
.pill.high   { border-color:var(--red);   color:var(--red);   background:rgba(239,68,68,0.1); }

/* ── META BADGE ───────────────────────────────────────────────────────────── */
.meta-badge { background:var(--teal-dim); border:1px solid rgba(0,212,170,0.3); color:var(--teal); font-size:0.78rem; font-weight:600; padding:0.25rem 0.8rem; border-radius:999px; }

/* ── CHATBOT ──────────────────────────────────────────────────────────────── */
#chat-fab { position:fixed; bottom:2rem; right:2rem; width:58px; height:58px; border-radius:50%; background:var(--teal); border:none; cursor:pointer; font-size:1.5rem; box-shadow:0 0 24px rgba(0,212,170,0.45); z-index:900; transition:transform 0.2s; display:flex; align-items:center; justify-content:center; color:var(--navy); }
#chat-fab:hover { transform:scale(1.08); }
#chat-window { position:fixed; bottom:6.5rem; right:2rem; width:340px; height:460px; background:#111827; border:1px solid rgba(0,212,170,0.2); border-radius:18px; display:none; flex-direction:column; z-index:900; overflow:hidden; box-shadow:0 8px 40px rgba(0,0,0,0.5); }
#chat-window.open { display:flex; }
.chat-header { padding:1rem 1.1rem 0.8rem; border-bottom:1px solid rgba(255,255,255,0.07); flex-shrink:0; }
.chat-header-title { font-family:var(--font-head); font-weight:700; font-size:0.95rem; color:var(--teal); display:flex; align-items:center; gap:0.4rem; }
.chat-header-sub { font-size:0.72rem; color:var(--text-dim); margin-top:0.15rem; }
#chat-messages { flex:1; overflow-y:auto; padding:0.9rem; display:flex; flex-direction:column; gap:0.65rem; scrollbar-width:thin; scrollbar-color:rgba(0,212,170,0.2) transparent; }
.msg { padding:0.6rem 0.85rem; border-radius:12px; font-size:0.83rem; line-height:1.55; max-width:88%; }
.msg.user { background:rgba(0,212,170,0.15); border:1px solid rgba(0,212,170,0.2); align-self:flex-end; color:var(--text); }
.msg.bot  { background:rgba(255,255,255,0.04); border:1px solid rgba(255,255,255,0.06); align-self:flex-start; color:var(--text); }
.msg.typing { opacity:0.55; font-style:italic; }
.chat-sources { font-size:0.7rem; color:var(--text-dim); margin-top:0.3rem; padding-left:0.2rem; }
.chat-suggestions { display:flex; flex-wrap:wrap; gap:0.4rem; padding:0.5rem 0.9rem 0.6rem; border-bottom:1px solid rgba(255,255,255,0.05); background:rgba(255,255,255,0.02); flex-shrink:0; }
.suggestion-btn { background:rgba(0,212,170,0.07); border:1px solid rgba(0,212,170,0.2); border-radius:999px; color:var(--teal); font-size:0.7rem; padding:0.25rem 0.65rem; cursor:pointer; transition:background 0.2s; font-family:var(--font-body); }
.suggestion-btn:hover { background:rgba(0,212,170,0.15); }
.chat-footer { padding:0.7rem; border-top:1px solid rgba(255,255,255,0.07); display:flex; gap:0.5rem; flex-shrink:0; }
#chat-input { flex:1; background:rgba(255,255,255,0.05); border:1px solid rgba(255,255,255,0.1); border-radius:8px; padding:0.5rem 0.75rem; color:var(--text); font-size:0.85rem; font-family:var(--font-body); outline:none; transition:border-color 0.2s; }
#chat-input:focus { border-color:var(--teal); }
#chat-send { background:var(--teal); border:none; border-radius:8px; padding:0.5rem 0.85rem; cursor:pointer; font-size:1rem; color:var(--navy); transition:opacity 0.2s; }
#chat-send:hover { opacity:0.85; }
#chat-send:disabled { opacity:0.4; cursor:not-allowed; }

/* ── UTILITIES ────────────────────────────────────────────────────────────── */
h1,h2,h3,h4 { font-family:var(--font-head); }
a { text-decoration:none; }
.grid-2 { display:grid; grid-template-columns:1fr 1fr; gap:1.25rem; }
.text-teal  { color:var(--teal); }
.text-dim   { color:var(--text-dim); }
.text-center{ text-align:center; }
.mt-1 { margin-top:0.5rem; }
.mt-2 { margin-top:1rem; }
.mt-3 { margin-top:1.5rem; }
.mb-1 { margin-bottom:0.5rem; }
.mb-2 { margin-bottom:1rem; }
.w-full { width:100%; }

@media (max-width:768px) {
  .grid-2 { grid-template-columns:1fr; }
  nav { padding:1rem; }
  .nav-logo { font-size:1.2rem; }
}