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static/script.js

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+/* ═══════════════════════════════════════════
+   NutriVision — script.js
+   ═══════════════════════════════════════════ */
+
+/* ── Hamburger ── */
+const hamburger  = document.getElementById('hamburger');
+const mobileMenu = document.getElementById('mobileMenu');
+if (hamburger) {
+  hamburger.addEventListener('click', () => {
+    hamburger.classList.toggle('open');
+    mobileMenu.classList.toggle('open');
+  });
+}
+
+/* ── Navbar scroll shadow ── */
+window.addEventListener('scroll', () => {
+  const nb = document.getElementById('navbar');
+  if (nb) nb.style.boxShadow = window.scrollY > 10 ? '0 2px 24px rgba(0,0,0,.4)' : 'none';
+});
+
+/* ── Reveal on scroll ── */
+const revealEls = document.querySelectorAll('.reveal');
+if (revealEls.length) {
+  const io = new IntersectionObserver(entries => {
+    entries.forEach(e => { if (e.isIntersecting) { e.target.classList.add('in-view'); io.unobserve(e.target); } });
+  }, { threshold: 0.12, rootMargin: '0px 0px -40px 0px' });
+  revealEls.forEach(el => io.observe(el));
+}
+
+/* ── Counter animation ── */
+function animateCounter(el, target, duration = 1200) {
+  const start = performance.now();
+  const update = (now) => {
+    const progress = Math.min((now - start) / duration, 1);
+    const ease = 1 - Math.pow(1 - progress, 3);
+    el.textContent = Math.floor(ease * target);
+    if (progress < 1) requestAnimationFrame(update);
+    else el.textContent = target;
+  };
+  requestAnimationFrame(update);
+}
+document.querySelectorAll('.counter').forEach(el => {
+  const io = new IntersectionObserver(entries => {
+    entries.forEach(e => {
+      if (e.isIntersecting) { animateCounter(el, +el.dataset.to); io.unobserve(el); }
+    });
+  }, { threshold: 0.5 });
+  io.observe(el);
+});
+
+/* ════════════════════════════════
+   ANALYZER PAGE
+   ════════════════════════════════ */
+const uploadZone      = document.getElementById('uploadZone');
+const imgInput        = document.getElementById('imgInput');
+const uploadPlaceholder = document.getElementById('uploadPlaceholder');
+const uploadPreview   = document.getElementById('uploadPreview');
+const previewImg      = document.getElementById('previewImg');
+const removeImgBtn    = document.getElementById('removeImg');
+const analyzerForm    = document.getElementById('analyzerForm');
+const loadingOverlay  = document.getElementById('loadingOverlay');
+const resultsPanel    = document.getElementById('resultsPanel');
+
+if (uploadZone) {
+  uploadZone.addEventListener('click', () => {
+    if (uploadPreview.style.display === 'none' || !uploadPreview.style.display) imgInput.click();
+  });
+  uploadZone.addEventListener('dragover', e => { e.preventDefault(); uploadZone.classList.add('dragover'); });
+  uploadZone.addEventListener('dragleave', () => uploadZone.classList.remove('dragover'));
+  uploadZone.addEventListener('drop', e => {
+    e.preventDefault(); uploadZone.classList.remove('dragover');
+    if (e.dataTransfer.files[0]) handleFile(e.dataTransfer.files[0]);
+  });
+  imgInput.addEventListener('change', e => { if (e.target.files[0]) handleFile(e.target.files[0]); });
+  removeImgBtn.addEventListener('click', e => {
+    e.stopPropagation();
+    imgInput.value = '';
+    previewImg.src = '';
+    uploadPreview.style.display = 'none';
+    uploadPlaceholder.style.display = 'block';
+  });
+}
+
+function handleFile(file) {
+  const valid = ['image/png','image/jpeg','image/jpg','image/webp'];
+  if (!valid.includes(file.type)) { showToast('⚠️ Please upload PNG, JPG, JPEG, or WebP', 'error'); return; }
+  if (file.size > 16 * 1024 * 1024) { showToast('⚠️ File too large. Max 16MB.', 'error'); return; }
+  const dt = new DataTransfer();
+  dt.items.add(file);
+  imgInput.files = dt.files;
+  const reader = new FileReader();
+  reader.onload = e => {
+    previewImg.src = e.target.result;
+    uploadPlaceholder.style.display = 'none';
+    uploadPreview.style.display = 'block';
+  };
+  reader.readAsDataURL(file);
+}
+
+/* ── Form submit ── */
+if (analyzerForm) {
+  analyzerForm.addEventListener('submit', async e => {
+    e.preventDefault();
+    if (!imgInput.files || !imgInput.files[0]) {
+      showToast('⚠️ Please upload a food image first', 'error'); return;
+    }
+    showLoading();
+    const fd = new FormData(analyzerForm);
+    try {
+      stepProgress(1);
+      const resp = await fetch('/analyze', { method: 'POST', body: fd });
+      stepProgress(2);
+      const data = await resp.json();
+      stepProgress(3);
+      if (!resp.ok) throw new Error(data.error || 'Analysis failed');
+      stepProgress(4);
+      await sleep(400);
+      hideLoading();
+      renderResults(data);
+      resultsPanel.style.display = 'flex';
+      setTimeout(() => resultsPanel.scrollIntoView({ behavior: 'smooth', block: 'start' }), 200);
+    } catch (err) {
+      hideLoading();
+      showToast('❌ ' + err.message, 'error');
+    }
+  });
+}
+
+/* ── Loading helpers ── */
+function showLoading() {
+  loadingOverlay.classList.add('active');
+  document.querySelectorAll('.lstep').forEach(s => s.classList.remove('active'));
+}
+function hideLoading() { loadingOverlay.classList.remove('active'); }
+function stepProgress(n) {
+  const el = document.getElementById('lstep' + n);
+  if (el) el.classList.add('active');
+}
+function sleep(ms) { return new Promise(r => setTimeout(r, ms)); }
+
+/* ── Render results ── */
+function renderResults(d) {
+  // Banner
+  document.getElementById('r_food').textContent = d.food || 'Unknown Food';
+  document.getElementById('r_confidence').textContent = '🎯 ' + (d.confidence || '—');
+  document.getElementById('r_source').textContent = '🤖 ' + (d.detection_source || '—');
+
+  // BMI
+  if (d.bmi) {
+    document.getElementById('r_bmi').textContent = d.bmi;
+    document.getElementById('r_bmiCat').textContent = d.bmi_category || '—';
+    const bmiCat = (d.bmi_category || '').toLowerCase();
+    const bmiVal = document.getElementById('r_bmi');
+    if (bmiCat.includes('obese'))         bmiVal.style.color = '#f47171';
+    else if (bmiCat.includes('overweight')) bmiVal.style.color = '#f5c842';
+    else if (bmiCat.includes('under'))    bmiVal.style.color = '#60a5fa';
+    else                                  bmiVal.style.color = 'var(--primary)';
+  }
+
+  // Nutrition grid
+  const nutr = d.nutrition || {};
+  const nutriMap = [
+    { key: 'calories',      label: 'Calories',      emoji: '🔥' },
+    { key: 'protein',       label: 'Protein',        emoji: '💪' },
+    { key: 'carbohydrates', label: 'Carbs',           emoji: '🌾' },
+    { key: 'fat',           label: 'Fat',             emoji: '🥑' },
+    { key: 'fiber',         label: 'Fiber',           emoji: '🌿' },
+    { key: 'sugar',         label: 'Sugar',           emoji: '🍬' },
+    { key: 'sodium',        label: 'Sodium',          emoji: '🧂' },
+    { key: 'serving_size',  label: 'Serving',         emoji: '🥣' },
+  ];
+  const ngEl = document.getElementById('r_nutrition');
+  ngEl.innerHTML = '';
+  nutriMap.forEach(item => {
+    const val = nutr[item.key];
+    if (!val) return;
+    const div = document.createElement('div');
+    div.className = 'nutri-item';
+    div.innerHTML = `<div class="nutri-val">${item.emoji} ${val}</div><div class="nutri-label">${item.label}</div>`;
+    ngEl.appendChild(div);
+  });
+
+  // Benefits
+  const bList = document.getElementById('r_benefits');
+  bList.innerHTML = '';
+  (d.health_benefits || []).forEach(b => {
+    const li = document.createElement('li');
+    li.textContent = b;
+    bList.appendChild(li);
+  });
+
+  // Portion
+  document.getElementById('r_portion').textContent = d.portion_advice || '1 standard serving';
+
+  // Health context
+  const ctx = document.getElementById('contextCard');
+  if (d.health_context) {
+    ctx.style.display = 'block';
+    document.getElementById('r_context').textContent = d.health_context;
+  } else { ctx.style.display = 'none'; }
+
+  // Alternatives
+  const altCard = document.getElementById('altCard');
+  const altList = document.getElementById('r_alternatives');
+  altList.innerHTML = '';
+  if (d.alternatives && d.alternatives.length) {
+    altCard.style.display = 'block';
+    d.alternatives.forEach(alt => {
+      const div = document.createElement('div');
+      div.className = 'alt-item';
+      let urlsHtml = '';
+      if (alt.urls && alt.urls.length) {
+        const links = alt.urls.map(u =>
+          `<a href="${u.url}" target="_blank" rel="noopener" class="buy-link">${u.emoji || ''} ${u.platform}</a>`
+        ).join('');
+        urlsHtml = `<div class="alt-buy"><span class="buy-label">🛒 Buy from:</span>${links}</div>`;
+      }
+      div.innerHTML = `
+        <div class="alt-name">✓ ${alt.name}</div>
+        <div class="alt-reason">${alt.reason}</div>
+        ${urlsHtml}
+      `;
+      altList.appendChild(div);
+    });
+  } else { altCard.style.display = 'none'; }
+}
+
+/* ── Reset analyzer ── */
+function resetAnalyzer() {
+  if (imgInput) { imgInput.value = ''; }
+  if (previewImg) { previewImg.src = ''; }
+  if (uploadPreview) { uploadPreview.style.display = 'none'; }
+  if (uploadPlaceholder) { uploadPlaceholder.style.display = 'block'; }
+  if (resultsPanel) { resultsPanel.style.display = 'none'; }
+  window.scrollTo({ top: 0, behavior: 'smooth' });
+}
+
+/* ── Toast notifications ── */
+function showToast(msg, type = 'info') {
+  const t = document.createElement('div');
+  t.style.cssText = `
+    position:fixed;bottom:1.5rem;right:1.5rem;z-index:99999;
+    padding:.85rem 1.4rem;border-radius:12px;font-size:.9rem;font-weight:600;
+    background:${type==='error'?'#f47171':'var(--primary)'};
+    color:${type==='error'?'#fff':'#080d14'};
+    box-shadow:0 8px 24px rgba(0,0,0,.4);
+    animation:slideUp .3s ease both;
+    max-width:320px;line-height:1.4;
+  `;
+  t.textContent = msg;
+  document.body.appendChild(t);
+  setTimeout(() => { t.style.opacity='0'; t.style.transition='.3s'; setTimeout(()=>t.remove(),300); }, 3500);
+}
+
+console.log('🥗 NutriVision loaded ✅');

static/style.css

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+/* ═══════════════════════════════════════════════════════
+   NutriVision — Redesigned Stylesheet
+   Theme: Soft Wellness — Sky Blue + Mint + White
+   Fonts: Plus Jakarta Sans (headings) + Nunito (body)
+   ═══════════════════════════════════════════════════════ */
+
+@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Nunito:wght@300;400;500;600;700&display=swap');
+
+/* ── DESIGN TOKENS ── */
+:root {
+  --bg:          #f0f7ff;
+  --bg-white:    #ffffff;
+  --bg-card:     #ffffff;
+  --bg-card2:    #f5faff;
+  --bg-section:  #e8f4fd;
+
+  --blue:        #3b9eff;
+  --blue-d:      #1a7de0;
+  --blue-l:      #e0f0ff;
+  --blue-g:      linear-gradient(135deg, #3b9eff 0%, #5bc4f5 100%);
+
+  --mint:        #2ecb8e;
+  --mint-l:      #e0f9f0;
+  --mint-g:      linear-gradient(135deg, #2ecb8e 0%, #3bdfaa 100%);
+
+  --peach:       #ff7e5f;
+  --peach-l:     #fff0ec;
+  --gold:        #f59e0b;
+  --gold-l:      #fef3c7;
+  --purple:      #8b5cf6;
+  --purple-l:    #ede9fe;
+
+  --text:        #1a2332;
+  --text-2:      #374151;
+  --sub:         #6b7280;
+  --muted:       #9ca3af;
+  --border:      #e2ecf5;
+  --border2:     #c8dff0;
+
+  --shadow-sm:   0 1px 3px rgba(59,158,255,.08), 0 1px 2px rgba(0,0,0,.04);
+  --shadow:      0 4px 16px rgba(59,158,255,.12), 0 2px 8px rgba(0,0,0,.06);
+  --shadow-lg:   0 12px 40px rgba(59,158,255,.18), 0 4px 16px rgba(0,0,0,.08);
+  --glow-blue:   0 0 32px rgba(59,158,255,.25);
+  --glow-mint:   0 0 32px rgba(46,203,142,.22);
+
+  --r-xs:  6px;
+  --r-sm:  10px;
+  --r-md:  14px;
+  --r-lg:  20px;
+  --r-xl:  28px;
+  --r-2xl: 36px;
+
+  --fh: 'Plus Jakarta Sans', sans-serif;
+  --fb: 'Nunito', sans-serif;
+  --ease: cubic-bezier(.4,0,.2,1);
+}
+
+/* ── RESET ── */
+*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
+html { scroll-behavior: smooth; }
+body {
+  font-family: var(--fb);
+  background: var(--bg);
+  color: var(--text);
+  line-height: 1.65;
+  overflow-x: hidden;
+  -webkit-font-smoothing: antialiased;
+}
+a { text-decoration: none; color: inherit; }
+ul { list-style: none; }
+img { max-width: 100%; display: block; }
+input, select, button, textarea { font-family: inherit; }
+
+::-webkit-scrollbar { width: 6px; }
+::-webkit-scrollbar-track { background: var(--bg); }
+::-webkit-scrollbar-thumb { background: var(--blue); border-radius: 3px; opacity: .5; }
+
+/* ── CONTAINER ── */
+.container { max-width: 1180px; margin: 0 auto; padding: 0 1.5rem; }
+
+/* ══════════════════════════════════
+   NAVIGATION
+   ══════════════════════════════════ */
+.nav {
+  position: sticky; top: 0; z-index: 900;
+  background: rgba(255,255,255,.92);
+  backdrop-filter: blur(16px);
+  -webkit-backdrop-filter: blur(16px);
+  border-bottom: 1px solid var(--border);
+  box-shadow: var(--shadow-sm);
+}
+.nav__inner {
+  max-width: 1180px; margin: 0 auto;
+  padding: .9rem 1.5rem;
+  display: flex; align-items: center; gap: 1.5rem;
+}
+.nav__logo { display: flex; align-items: center; gap: .55rem; flex-shrink: 0; }
+.logo-icon {
+  font-size: 1.5rem; display: inline-block;
+  animation: float 3s ease-in-out infinite;
+}
+.logo-text {
+  font-family: var(--fh); font-size: 1.25rem; font-weight: 800;
+  background: var(--blue-g);
+  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
+  background-clip: text;
+}
+.nav__links { display: flex; gap: 2rem; margin-left: auto; }
+.nav__link {
+  font-family: var(--fh); font-size: .88rem; font-weight: 600;
+  color: var(--sub); transition: color .2s; position: relative; padding-bottom: 2px;
+}
+.nav__link::after {
+  content: ''; position: absolute; bottom: -4px; left: 0;
+  width: 0; height: 2px; background: var(--blue);
+  border-radius: 2px; transition: width .3s var(--ease);
+}
+.nav__link:hover, .nav__link--active { color: var(--blue); }
+.nav__link:hover::after, .nav__link--active::after { width: 100%; }
+.nav__cta { margin-left: 1.25rem; flex-shrink: 0; }
+
+/* hamburger */
+.hamburger {
+  display: none; flex-direction: column; gap: 5px;
+  background: none; border: none; cursor: pointer;
+  padding: .3rem; margin-left: auto;
+}
+.hamburger span {
+  display: block; width: 22px; height: 2px;
+  background: var(--text); border-radius: 2px; transition: .3s;
+}
+.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
+.hamburger.open span:nth-child(2) { opacity: 0; }
+.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
+
+/* mobile menu */
+.mobile-menu {
+  display: none; flex-direction: column;
+  background: var(--bg-white);
+  border-bottom: 1px solid var(--border);
+  padding: .75rem 1.5rem 1.25rem; gap: .15rem;
+  box-shadow: var(--shadow);
+}
+.mobile-menu.open { display: flex; }
+.mobile-link {
+  padding: .75rem .9rem; color: var(--sub); font-weight: 600;
+  border-radius: var(--r-sm); transition: .2s; font-family: var(--fh); font-size: .9rem;
+}
+.mobile-link:hover { color: var(--blue); background: var(--blue-l); }
+.mobile-link.highlight { color: var(--blue); font-weight: 700; }
+
+/* ══════════════════════════════════
+   BUTTONS
+   ══════════════════════════════════ */
+.btn {
+  display: inline-flex; align-items: center; justify-content: center;
+  gap: .5rem; padding: .75rem 1.6rem;
+  border-radius: var(--r-md); font-family: var(--fh); font-weight: 700; font-size: .9rem;
+  cursor: pointer; border: none; transition: all .22s var(--ease);
+  white-space: nowrap; line-height: 1;
+}
+.btn--primary {
+  background: var(--blue-g); color: #fff;
+  box-shadow: 0 4px 14px rgba(59,158,255,.35);
+}
+.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 8px 22px rgba(59,158,255,.45); }
+.btn--outline { background: transparent; color: var(--blue); border: 2px solid var(--blue); }
+.btn--outline:hover { background: var(--blue-l); }
+.btn--ghost-sm {
+  background: transparent; color: var(--sub);
+  border: 1.5px solid var(--border2); font-size: .85rem; padding: .5rem 1rem;
+}
+.btn--ghost-sm:hover { color: var(--blue); border-color: var(--blue); background: var(--blue-l); }
+.btn--sm { padding: .5rem 1.1rem; font-size: .82rem; }
+.btn--lg { padding: 1rem 2.4rem; font-size: 1rem; border-radius: var(--r-lg); }
+.btn--full { width: 100%; margin-top: 1.5rem; padding: 1rem; font-size: .95rem; border-radius: var(--r-md); }
+
+.btn-spinner {
+  width: 17px; height: 17px;
+  border: 2.5px solid rgba(255,255,255,.3);
+  border-top-color: #fff;
+  border-radius: 50%;
+  animation: spin 1s linear infinite;
+}
+
+/* ══════════════════════════════════
+   BACKGROUND / DECORATIVE BLOBS
+   ══════════════════════════════════ */
+.orb {
+  position: absolute; border-radius: 50%;
+  filter: blur(80px); pointer-events: none;
+}
+.orb--a {
+  width: 500px; height: 500px; opacity: .18;
+  background: radial-gradient(circle, #3b9eff, transparent 70%);
+  top: -150px; right: 5%;
+  animation: drift 9s ease-in-out infinite alternate;
+}
+.orb--b {
+  width: 380px; height: 380px; opacity: .14;
+  background: radial-gradient(circle, #2ecb8e, transparent 70%);
+  bottom: -80px; left: -5%;
+  animation: drift 12s ease-in-out infinite alternate-reverse;
+}
+.orb--c {
+  width: 300px; height: 300px; opacity: .12;
+  background: radial-gradient(circle, #8b5cf6, transparent 70%);
+  top: 40%; left: 42%;
+  animation: drift 15s ease-in-out infinite alternate;
+}
+.grid-bg {
+  position: absolute; inset: 0;
+  background-image:
+    linear-gradient(rgba(59,158,255,.06) 1px, transparent 1px),
+    linear-gradient(90deg, rgba(59,158,255,.06) 1px, transparent 1px);
+  background-size: 52px 52px; opacity: .7;
+}
+
+/* ══════════════════════════════════
+   HERO
+   ══════════════════════════════════ */
+.hero {
+  position: relative; min-height: calc(100vh - 62px);
+  display: flex; align-items: center; overflow: hidden;
+  background: linear-gradient(160deg, #f0f8ff 0%, #e4f3fe 50%, #edfaf4 100%);
+}
+.hero__bg { position: absolute; inset: 0; }
+.hero__body {
+  display: grid; grid-template-columns: 1fr 1fr; gap: 4rem;
+  align-items: center; padding: 4rem 0;
+  position: relative; z-index: 2;
+}
+.hero__badge {
+  display: inline-flex; align-items: center; gap: .5rem;
+  background: rgba(59,158,255,.1);
+  border: 1px solid rgba(59,158,255,.25);
+  color: var(--blue); font-size: .8rem; font-weight: 700;
+  font-family: var(--fh);
+  padding: .38rem 1rem; border-radius: 100px; margin-bottom: 1.5rem;
+}
+.pulse-dot {
+  width: 7px; height: 7px; background: var(--mint);
+  border-radius: 50%; flex-shrink: 0;
+  animation: pulse-ring 2s ease-in-out infinite;
+}
+.hero__title {
+  font-family: var(--fh);
+  font-size: clamp(2.3rem, 5vw, 3.6rem);
+  font-weight: 800; line-height: 1.1; letter-spacing: -.025em;
+  color: var(--text); margin-bottom: 1.25rem;
+}
+.hero__title em {
+  font-style: normal;
+  background: var(--blue-g);
+  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
+  background-clip: text;
+}
+.hero__desc {
+  color: var(--sub); font-size: 1.05rem; line-height: 1.8;
+  margin-bottom: 2rem; max-width: 480px;
+}
+.hero__btns { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 2.5rem; }
+.hero__stats { display: flex; align-items: center; gap: 2rem; flex-wrap: wrap; }
+.hstat { display: flex; flex-direction: column; gap: .15rem; }
+.hstat b {
+  font-family: var(--fh); font-size: 1.9rem; font-weight: 800;
+  color: var(--blue); line-height: 1;
+}
+.hstat sup { font-size: 1rem; color: var(--mint); font-weight: 700; }
+.hstat span { font-size: .75rem; color: var(--muted); text-transform: uppercase; letter-spacing: .07em; font-weight: 600; }
+.hstat-sep { width: 1px; height: 38px; background: var(--border2); }
+
+/* ORBIT */
+.hero__right { display: flex; justify-content: center; align-items: center; }
+.orbit-wrap { position: relative; width: 340px; height: 340px; flex-shrink: 0; }
+.orbit-core {
+  position: absolute; top: 50%; left: 50%;
+  transform: translate(-50%, -50%);
+  width: 80px; height: 80px; border-radius: 50%;
+  background: linear-gradient(135deg, #fff 0%, #e8f4ff 100%);
+  border: 2px solid var(--border2);
+  display: flex; align-items: center; justify-content: center;
+  font-size: 2rem; box-shadow: var(--shadow-lg); z-index: 2;
+}
+.orbit {
+  position: absolute; top: 50%; left: 50%;
+  border-radius: 50%; border: 1.5px dashed var(--border2);
+}
+.orbit--1 { width: 200px; height: 200px; transform: translate(-50%,-50%); animation: spin-cw 10s linear infinite; }
+.orbit--2 { width: 320px; height: 320px; transform: translate(-50%,-50%); animation: spin-ccw 16s linear infinite; }
+.orb-food { position: absolute; font-size: 1.65rem; top: 50%; left: 50%; }
+
+/* ── MARQUEE ── */
+.marquee-outer {
+  overflow: hidden;
+  border-top: 1px solid var(--border);
+  border-bottom: 1px solid var(--border);
+  background: var(--bg-white); padding: .65rem 0;
+}
+.marquee-inner { display: flex; }
+.marquee-track {
+  display: flex; gap: 2.5rem; white-space: nowrap;
+  animation: marquee 30s linear infinite;
+}
+.marquee-track span {
+  color: var(--sub); font-size: .86rem; font-weight: 600;
+  font-family: var(--fh); padding: .1rem .4rem; flex-shrink: 0;
+}
+
+/* ══════════════════════════════════
+   SECTIONS
+   ══════════════════════════════════ */
+.section { padding: 5rem 0; }
+.bg-card { background: var(--bg-white); }
+.bg-section { background: var(--bg-section); }
+
+.section-head { text-align: center; margin-bottom: 3.5rem; }
+.tag {
+  display: inline-block;
+  background: var(--blue-l);
+  border: 1px solid rgba(59,158,255,.3);
+  color: var(--blue); font-family: var(--fh); font-size: .74rem; font-weight: 700;
+  letter-spacing: .08em; text-transform: uppercase;
+  padding: .28rem .9rem; border-radius: 100px; margin-bottom: .9rem;
+}
+.section-head h2 {
+  font-family: var(--fh);
+  font-size: clamp(1.7rem, 3.5vw, 2.5rem);
+  font-weight: 800; letter-spacing: -.02em; color: var(--text);
+}
+
+/* ── HOW IT WORKS ── */
+.how-grid {
+  display: flex; align-items: center; justify-content: center;
+  gap: 1.5rem; flex-wrap: wrap;
+}
+.how-card {
+  background: var(--bg-white); border: 1.5px solid var(--border);
+  border-radius: var(--r-xl); padding: 2.1rem 1.75rem;
+  max-width: 250px; flex: 1; min-width: 190px; text-align: center;
+  transition: all .3s var(--ease); box-shadow: var(--shadow-sm);
+}
+.how-card:hover {
+  border-color: var(--blue); transform: translateY(-6px); box-shadow: var(--shadow-lg);
+}
+.how-num {
+  font-family: var(--fh); font-size: 2.6rem; font-weight: 800;
+  background: var(--blue-g);
+  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
+  background-clip: text; line-height: 1; margin-bottom: .5rem;
+}
+.how-icon { font-size: 2.2rem; margin-bottom: .75rem; }
+.how-card h3 { font-family: var(--fh); font-size: 1rem; font-weight: 700; margin-bottom: .45rem; color: var(--text); }
+.how-card p { color: var(--sub); font-size: .87rem; line-height: 1.65; }
+.how-arrow { font-size: 1.6rem; color: var(--blue); flex-shrink: 0; opacity: .5; }
+
+/* ── FEATURES ── */
+.feat-grid {
+  display: grid; grid-template-columns: repeat(auto-fit, minmax(215px, 1fr)); gap: 1.4rem;
+}
+.feat-card {
+  background: var(--bg-white); border: 1.5px solid var(--border);
+  border-radius: var(--r-xl); padding: 1.8rem;
+  transition: all .3s var(--ease); box-shadow: var(--shadow-sm);
+}
+.feat-card:hover { border-color: var(--blue); transform: translateY(-4px); box-shadow: var(--shadow-lg); }
+.feat-card--big { grid-column: span 2; }
+.feat-icon { font-size: 2.2rem; margin-bottom: 1rem; }
+.feat-card h3 { font-family: var(--fh); font-size: 1.05rem; font-weight: 700; margin-bottom: .5rem; color: var(--text); }
+.feat-card p { color: var(--sub); font-size: .88rem; line-height: 1.68; }
+.feat-tags { display: flex; gap: .5rem; flex-wrap: wrap; margin-top: 1rem; }
+.feat-tags span {
+  background: var(--blue-l); color: var(--blue);
+  font-size: .74rem; font-weight: 700; font-family: var(--fh); padding: .25rem .7rem;
+  border-radius: 100px; border: 1px solid rgba(59,158,255,.25);
+}
+
+/* ── MODEL CARDS ── */
+.model-grid {
+  display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 1.4rem;
+}
+.model-card {
+  background: var(--bg-white); border: 1.5px solid var(--border);
+  border-radius: var(--r-xl); padding: 1.8rem; text-align: center;
+  transition: all .3s var(--ease); box-shadow: var(--shadow-sm);
+}
+.model-card:hover { border-color: var(--blue); transform: translateY(-4px); box-shadow: var(--shadow); }
+.model-card--gold { border-color: rgba(245,158,11,.3); background: linear-gradient(135deg, #fffbeb, #fff9e8); }
+.model-card--gold:hover { border-color: var(--gold); box-shadow: 0 8px 28px rgba(245,158,11,.18); }
+.model-badge {
+  display: inline-block; background: var(--blue-l); color: var(--blue);
+  font-family: var(--fh); font-size: .72rem; font-weight: 700; padding: .22rem .75rem;
+  border-radius: 100px; margin-bottom: 1rem; letter-spacing: .04em;
+}
+.model-badge--gold { background: var(--gold-l); color: var(--gold); }
+.model-icon { font-size: 2.4rem; margin-bottom: .75rem; }
+.model-card h4 { font-family: var(--fh); font-size: .98rem; font-weight: 700; margin-bottom: .45rem; color: var(--text); }
+.model-card p { color: var(--sub); font-size: .86rem; line-height: 1.6; }
+.model-pill {
+  display: inline-block; margin-top: 1rem;
+  background: var(--bg-section); border: 1px solid var(--border2);
+  color: var(--sub); font-family: var(--fh); font-size: .76rem; font-weight: 700;
+  padding: .25rem .8rem; border-radius: 100px;
+}
+
+/* ── CTA BLOCK ── */
+.cta-block {
+  background: linear-gradient(135deg, #3b9eff 0%, #2ecb8e 100%);
+  border-radius: var(--r-2xl); padding: 4.5rem 2rem;
+  text-align: center; position: relative; overflow: hidden;
+  box-shadow: 0 16px 48px rgba(59,158,255,.3);
+}
+.cta-glow {
+  position: absolute; top: 50%; left: 50%;
+  transform: translate(-50%, -50%);
+  width: 500px; height: 280px;
+  background: radial-gradient(ellipse, rgba(255,255,255,.18) 0%, transparent 70%);
+  pointer-events: none;
+}
+.cta-block h2 {
+  font-family: var(--fh); font-size: 2.2rem; font-weight: 800;
+  margin-bottom: .75rem; position: relative; color: #fff;
+}
+.cta-block p { color: rgba(255,255,255,.85); font-size: 1.05rem; margin-bottom: 2rem; position: relative; }
+.cta-block .btn--primary {
+  background: #fff; color: var(--blue);
+  box-shadow: 0 4px 18px rgba(0,0,0,.15);
+}
+.cta-block .btn--primary:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(0,0,0,.2); }
+
+/* ══════════════════════════════════
+   FOOTER
+   ══════════════════════════════════ */
+.footer { background: var(--text); border-top: 1px solid rgba(255,255,255,.07); padding: 3.5rem 0 1.5rem; }
+.footer-grid {
+  display: grid; grid-template-columns: 2fr 1fr 1fr;
+  gap: 3rem; margin-bottom: 2.5rem;
+}
+.footer .logo-text {
+  background: var(--blue-g);
+  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
+  background-clip: text;
+}
+.footer-links { display: flex; flex-direction: column; gap: .6rem; }
+.footer-links h5 {
+  font-family: var(--fh); font-size: .76rem; text-transform: uppercase;
+  letter-spacing: .09em; color: rgba(255,255,255,.4); margin-bottom: .5rem;
+}
+.footer-links a { color: rgba(255,255,255,.55); font-size: .88rem; transition: color .2s; }
+.footer-links a:hover { color: var(--blue); }
+.footer-links span { color: rgba(255,255,255,.35); font-size: .85rem; }
+.footer-bottom {
+  border-top: 1px solid rgba(255,255,255,.08); padding-top: 1.5rem;
+  display: flex; justify-content: space-between;
+  align-items: center; flex-wrap: wrap; gap: 1rem;
+}
+.footer-bottom p { color: rgba(255,255,255,.3); font-size: .82rem; }
+
+/* ══════════════════════════════════
+   PAGE HERO
+   ══════════════════════════════════ */
+.page-hero {
+  position: relative; overflow: hidden;
+  padding: 4rem 0 3rem;
+  background: linear-gradient(160deg, #f0f8ff 0%, #e6f4fe 100%);
+}
+.page-title {
+  font-family: var(--fh);
+  font-size: clamp(1.9rem, 4.5vw, 2.9rem);
+  font-weight: 800; margin-bottom: .75rem; color: var(--text);
+}
+.page-sub { color: var(--sub); font-size: 1rem; max-width: 580px; margin: 0 auto; line-height: 1.7; }
+
+/* ══════════════════════════════════
+   ANALYZER PAGE
+   ══════════════════════════════════ */
+.page-wrap { min-height: calc(100vh - 62px); display: flex; flex-direction: column; }
+
+.analyzer-layout {
+  display: grid; grid-template-columns: 1fr 1fr;
+  gap: 2.5rem; padding: 2.5rem 0 5rem;
+  align-items: start;
+}
+
+/* FORM CARD */
+.form-card {
+  background: var(--bg-white);
+  border: 1.5px solid var(--border);
+  border-radius: var(--r-2xl);
+  padding: 2rem;
+  position: sticky; top: 80px;
+  box-shadow: var(--shadow);
+}
+
+/* UPLOAD ZONE */
+.upload-zone {
+  border: 2px dashed var(--border2);
+  border-radius: var(--r-xl);
+  min-height: 190px;
+  display: flex; align-items: center; justify-content: center;
+  cursor: pointer; position: relative; overflow: hidden;
+  transition: all .25s var(--ease);
+  background: var(--bg-section);
+}
+.upload-zone:hover, .upload-zone.dragover {
+  border-color: var(--blue);
+  background: var(--blue-l);
+}
+.upload-placeholder { text-align: center; padding: 2rem; pointer-events: none; }
+.upload-icon-wrap { font-size: 2.6rem; margin-bottom: .6rem; }
+.upload-placeholder h3 {
+  font-family: var(--fh); font-size: 1.05rem;
+  font-weight: 700; margin-bottom: .4rem; color: var(--text);
+}
+.upload-placeholder p { color: var(--muted); font-size: .83rem; }
+.upload-preview {
+  width: 100%; padding: 1rem;
+  display: flex; align-items: center; justify-content: center; position: relative;
+}
+.upload-preview img {
+  max-height: 250px; object-fit: contain;
+  border-radius: var(--r-lg); margin: 0 auto; box-shadow: var(--shadow-sm);
+}
+.remove-btn {
+  position: absolute; top: .75rem; right: .75rem;
+  width: 30px; height: 30px; border-radius: 50%;
+  background: #ff6b6b; color: #fff;
+  border: none; font-size: .9rem; cursor: pointer;
+  display: flex; align-items: center; justify-content: center;
+  transition: transform .2s, box-shadow .2s;
+  box-shadow: 0 2px 8px rgba(255,107,107,.35);
+}
+.remove-btn:hover { transform: scale(1.15); box-shadow: 0 4px 14px rgba(255,107,107,.45); }
+
+/* PROFILE BLOCK */
+.profile-block { margin-top: 1.75rem; }
+.block-title {
+  font-family: var(--fh); font-size: .95rem; font-weight: 700;
+  margin-bottom: 1.2rem; color: var(--text);
+  display: flex; align-items: center; gap: .5rem;
+}
+.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .9rem; }
+.field { display: flex; flex-direction: column; gap: .35rem; }
+.field label {
+  font-family: var(--fh); font-size: .75rem; font-weight: 700; color: var(--sub);
+  text-transform: uppercase; letter-spacing: .06em;
+}
+.field input, .field select {
+  background: var(--bg-section);
+  border: 1.5px solid var(--border);
+  border-radius: var(--r-sm);
+  padding: .62rem .9rem;
+  color: var(--text); font-size: .92rem; font-family: var(--fb);
+  transition: border-color .2s, box-shadow .2s;
+  -webkit-appearance: none; appearance: none;
+}
+.field input:focus, .field select:focus {
+  outline: none;
+  border-color: var(--blue);
+  box-shadow: 0 0 0 3px rgba(59,158,255,.14);
+  background: var(--bg-white);
+}
+.field select {
+  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='7' viewBox='0 0 12 7'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%239ca3af' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
+  background-repeat: no-repeat; background-position: right .85rem center;
+  padding-right: 2.4rem; background-color: var(--bg-section);
+}
+.field input[type=number] { -moz-appearance: textfield; }
+.field input[type=number]::-webkit-inner-spin-button,
+.field input[type=number]::-webkit-outer-spin-button { -webkit-appearance: none; }
+
+/* ══════════════════════════════════
+   RESULTS PANEL
+   ══════════════════════════════════ */
+.results-panel { display: flex; flex-direction: column; gap: 1.1rem; }
+
+/* DETECTED FOOD BANNER */
+.result-banner {
+  background: linear-gradient(135deg, #3b9eff 0%, #2ecb8e 100%);
+  border-radius: var(--r-xl);
+  padding: 1.6rem 1.85rem;
+  display: flex; align-items: center; gap: 1.4rem;
+  box-shadow: 0 8px 28px rgba(59,158,255,.28);
+}
+.result-banner__icon { font-size: 2.6rem; flex-shrink: 0; }
+.result-banner__label {
+  font-size: .72rem; text-transform: uppercase; letter-spacing: .08em;
+  color: rgba(255,255,255,.75); font-family: var(--fh); font-weight: 700; margin-bottom: .2rem;
+}
+.result-banner h2 {
+  font-family: var(--fh); font-size: 1.6rem; font-weight: 800;
+  color: #fff; margin: .1rem 0 .55rem; line-height: 1.2;
+}
+.result-banner__meta { display: flex; gap: .5rem; flex-wrap: wrap; }
+.confidence-chip, .source-chip {
+  font-size: .74rem; font-weight: 700; font-family: var(--fh);
+  padding: .22rem .65rem; border-radius: 100px;
+  background: rgba(255,255,255,.22); color: #fff;
+}
+
+/* BMI STRIP */
+.bmi-strip {
+  background: var(--bg-white); border: 1.5px solid var(--border);
+  border-radius: var(--r-lg); padding: 1.1rem 1.5rem;
+  display: flex; align-items: center; gap: 1.5rem;
+  box-shadow: var(--shadow-sm);
+}
+.bmi-item { display: flex; flex-direction: column; gap: .15rem; }
+.bmi-label {
+  font-family: var(--fh); font-size: .72rem; font-weight: 700; color: var(--muted);
+  text-transform: uppercase; letter-spacing: .06em;
+}
+.bmi-val { font-family: var(--fh); font-size: 1.55rem; font-weight: 800; color: var(--blue); line-height: 1; }
+.bmi-cat { font-family: var(--fh); font-size: .92rem; font-weight: 700; color: var(--text); }
+.bmi-sep { width: 1px; height: 38px; background: var(--border); }
+
+/* RESULT CARDS */
+.result-card {
+  background: var(--bg-white); border: 1.5px solid var(--border);
+  border-radius: var(--r-xl); padding: 1.4rem 1.6rem;
+  animation: slide-up .35s var(--ease) both;
+  box-shadow: var(--shadow-sm);
+}
+.result-card--amber { border-left: 3px solid var(--gold); background: linear-gradient(to right, #fffbeb, var(--bg-white)); }
+.result-card--pink  { border-left: 3px solid var(--peach); background: linear-gradient(to right, #fff5f3, var(--bg-white)); }
+.result-card--teal  { border-left: 3px solid var(--mint); background: linear-gradient(to right, #f0fdf8, var(--bg-white)); }
+.result-card__title {
+  font-family: var(--fh); font-size: .95rem; font-weight: 700; color: var(--text);
+  margin-bottom: 1rem; display: flex; align-items: center; gap: .45rem;
+}
+
+/* NUTRITION GRID */
+.nutrition-grid {
+  display: grid; grid-template-columns: repeat(auto-fit, minmax(115px, 1fr)); gap: .65rem;
+}
+.nutri-item {
+  background: var(--bg-section); border: 1.5px solid var(--border);
+  border-radius: var(--r-md); padding: .85rem .8rem;
+  text-align: center; transition: all .2s;
+}
+.nutri-item:hover { border-color: var(--blue); background: var(--blue-l); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
+.nutri-val { font-family: var(--fh); font-size: 1rem; font-weight: 800; color: var(--blue); margin-bottom: .2rem; }
+.nutri-label { font-family: var(--fh); font-size: .7rem; color: var(--muted); font-weight: 700; text-transform: uppercase; letter-spacing: .04em; }
+
+/* HEALTH BENEFITS */
+.benefits-list { display: flex; flex-direction: column; gap: .5rem; }
+.benefits-list li {
+  display: flex; align-items: flex-start; gap: .65rem;
+  padding: .65rem .9rem;
+  background: var(--mint-l);
+  border-radius: var(--r-sm);
+  border: 1px solid rgba(46,203,142,.2);
+  color: var(--text-2); font-size: .9rem; line-height: 1.55;
+}
+.benefits-list li::before { content: "✓"; color: var(--mint); font-weight: 800; flex-shrink: 0; }
+
+/* PORTION */
+.portion-text { color: var(--text-2); font-size: .93rem; line-height: 1.7; padding: .3rem 0; }
+
+/* HEALTH CONTEXT */
+.result-card--pink p { color: var(--text-2); font-size: .92rem; line-height: 1.72; }
+
+/* ALTERNATIVES */
+.alt-intro { color: var(--muted); font-size: .84rem; margin-bottom: 1rem; font-style: italic; }
+.alt-list { display: flex; flex-direction: column; gap: .8rem; }
+.alt-item {
+  background: var(--bg-section); border: 1.5px solid var(--border);
+  border-radius: var(--r-lg); padding: 1.05rem 1.2rem;
+  transition: border-color .22s, transform .22s, box-shadow .22s;
+}
+.alt-item:hover { border-color: var(--mint); transform: translateX(4px); box-shadow: var(--shadow-sm); }
+.alt-name { font-family: var(--fh); font-weight: 700; color: var(--text); font-size: .95rem; margin-bottom: .2rem; }
+.alt-reason { color: var(--sub); font-size: .85rem; margin-bottom: .7rem; line-height: 1.55; }
+.alt-buy { display: flex; align-items: center; gap: .45rem; flex-wrap: wrap; }
+.buy-label { font-family: var(--fh); font-size: .74rem; font-weight: 700; color: var(--muted); }
+.buy-link {
+  display: inline-flex; align-items: center; gap: .3rem;
+  background: var(--blue-l); color: var(--blue);
+  font-family: var(--fh); font-size: .74rem; font-weight: 700;
+  padding: .22rem .65rem; border-radius: 6px;
+  border: 1px solid rgba(59,158,255,.25);
+  transition: all .2s;
+}
+.buy-link:hover { background: var(--blue); color: #fff; transform: translateY(-1px); box-shadow: var(--shadow-sm); }
+
+/* RESULT ACTIONS */
+.result-actions { display: flex; gap: .75rem; justify-content: center; flex-wrap: wrap; padding-top: .5rem; }
+
+/* ══════════════════════════════════
+   LOADING OVERLAY
+   ══════════════════════════════════ */
+.loading-overlay {
+  position: fixed; inset: 0; z-index: 9999;
+  background: rgba(240,248,255,.95);
+  backdrop-filter: blur(14px);
+  -webkit-backdrop-filter: blur(14px);
+  display: none; align-items: center; justify-content: center;
+}
+.loading-overlay.active { display: flex; }
+.loading-box { text-align: center; max-width: 360px; padding: 2rem; }
+.loading-spinner {
+  width: 64px; height: 64px; margin: 0 auto 2rem;
+  border: 4px solid rgba(59,158,255,.15);
+  border-top-color: var(--blue);
+  border-radius: 50%; animation: spin 1s linear infinite;
+}
+.loading-box h3 { font-family: var(--fh); font-size: 1.3rem; font-weight: 800; margin-bottom: .4rem; color: var(--text); }
+.loading-box > p { color: var(--sub); font-size: .88rem; margin-bottom: 1.5rem; }
+.loading-steps { display: flex; flex-direction: column; gap: .45rem; }
+.lstep {
+  padding: .5rem 1rem; border-radius: var(--r-sm);
+  color: var(--muted); font-size: .85rem; font-family: var(--fh); font-weight: 600;
+  transition: all .4s; opacity: .35;
+}
+.lstep.active {
+  background: var(--blue-l); color: var(--blue);
+  opacity: 1; border: 1px solid rgba(59,158,255,.25);
+}
+
+/* ══════════════════════════════════
+   ABOUT PAGE
+   ══════════════════════════════════ */
+.team-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2rem; }
+.team-card {
+  background: var(--bg-white); border: 1.5px solid var(--border);
+  border-radius: var(--r-2xl); padding: 2.25rem; text-align: center;
+  transition: all .3s var(--ease); box-shadow: var(--shadow-sm);
+}
+.team-card:hover { border-color: var(--blue); transform: translateY(-6px); box-shadow: var(--shadow-lg); }
+.team-avatar {
+  width: 92px; height: 92px; border-radius: 50%;
+  display: flex; align-items: center; justify-content: center;
+  font-family: var(--fh); font-size: 2.3rem; font-weight: 800;
+  color: #fff; margin: 0 auto 1.4rem;
+}
+.av--purple { background: linear-gradient(135deg, #8b5cf6, #6d44e8); box-shadow: 0 6px 20px rgba(139,92,246,.3); }
+.av--pink   { background: linear-gradient(135deg, #f472b6, #e04e9a); box-shadow: 0 6px 20px rgba(244,114,182,.3); }
+.av--gold   { background: linear-gradient(135deg, #f59e0b, #f97316); box-shadow: 0 6px 20px rgba(245,158,11,.3); }
+.team-card h3 { font-family: var(--fh); font-size: 1.2rem; font-weight: 800; margin-bottom: .3rem; color: var(--text); }
+.team-role { color: var(--blue); font-weight: 700; font-size: .88rem; margin-bottom: 1rem; display: block; font-family: var(--fh); }
+.team-bio { color: var(--sub); font-size: .87rem; line-height: 1.72; margin-bottom: 1.25rem; }
+.skill-chips { display: flex; flex-wrap: wrap; gap: .45rem; justify-content: center; }
+.skill-chips span {
+  background: var(--blue-l); color: var(--blue);
+  font-family: var(--fh); font-size: .74rem; font-weight: 700; padding: .26rem .7rem;
+  border-radius: 100px; border: 1px solid rgba(59,158,255,.2);
+}
+.mission-text { color: var(--sub); font-size: 1.02rem; line-height: 1.85; text-align: center; max-width: 720px; margin: 0 auto; }
+.tech-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(195px, 1fr)); gap: 1.3rem; }
+.tech-card {
+  background: var(--bg-white); border: 1.5px solid var(--border);
+  border-radius: var(--r-xl); padding: 1.65rem; text-align: center; transition: all .3s;
+  box-shadow: var(--shadow-sm);
+}
+.tech-card:hover { border-color: var(--blue); transform: translateY(-4px); box-shadow: var(--shadow); }
+.tech-card--gold { border-color: rgba(245,158,11,.28); background: linear-gradient(135deg, #fffbeb, #fff9e8); }
+.tech-card--gold:hover { border-color: var(--gold); box-shadow: 0 8px 24px rgba(245,158,11,.18); }
+.tech-icon { font-size: 2.1rem; margin-bottom: .8rem; }
+.tech-card h4 { font-family: var(--fh); font-size: .96rem; font-weight: 700; margin-bottom: .4rem; color: var(--text); }
+.tech-card p { color: var(--sub); font-size: .85rem; line-height: 1.6; }
+.diff-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 1.2rem; }
+.diff-item {
+  display: flex; gap: 1.3rem; align-items: flex-start;
+  background: var(--bg-white); border: 1.5px solid var(--border);
+  border-radius: var(--r-xl); padding: 1.4rem; transition: border-color .3s;
+  box-shadow: var(--shadow-sm);
+}
+.diff-item:hover { border-color: var(--blue); box-shadow: var(--shadow); }
+.diff-num {
+  font-family: var(--fh); font-size: 2.3rem; font-weight: 800;
+  line-height: 1; flex-shrink: 0;
+  background: var(--blue-g);
+  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
+  background-clip: text;
+}
+.diff-item h3 { font-family: var(--fh); font-size: 1rem; font-weight: 700; margin-bottom: .4rem; color: var(--text); }
+.diff-item p { color: var(--sub); font-size: .87rem; line-height: 1.6; }
+
+/* ══════════════════════════════════
+   REVEAL ANIMATION
+   ══════════════════════════════════ */
+.reveal {
+  opacity: 0; transform: translateY(22px);
+  transition: opacity .55s var(--ease), transform .55s var(--ease);
+}
+.reveal.in-view { opacity: 1; transform: translateY(0); }
+.d1 { transition-delay: .07s; }
+.d2 { transition-delay: .15s; }
+.d3 { transition-delay: .23s; }
+.d4 { transition-delay: .31s; }
+.d5 { transition-delay: .39s; }
+.d6 { transition-delay: .47s; }
+
+/* ══════════════════════════════════
+   KEYFRAMES
+   ══════════���═══════════════════════ */
+@keyframes float {
+  0%, 100% { transform: translateY(0); }
+  50%       { transform: translateY(-6px); }
+}
+@keyframes drift {
+  0%   { transform: translate(0, 0); }
+  100% { transform: translate(24px, -24px); }
+}
+@keyframes marquee {
+  0%   { transform: translateX(0); }
+  100% { transform: translateX(-50%); }
+}
+@keyframes spin { to { transform: rotate(360deg); } }
+@keyframes spin-cw  { to { transform: translate(-50%,-50%) rotate(360deg); } }
+@keyframes spin-ccw { to { transform: translate(-50%,-50%) rotate(-360deg); } }
+@keyframes pulse-ring {
+  0%, 100% { box-shadow: 0 0 0 0 rgba(46,203,142,.6); }
+  50%       { box-shadow: 0 0 0 7px rgba(46,203,142,0); }
+}
+@keyframes slide-up {
+  from { opacity: 0; transform: translateY(12px); }
+  to   { opacity: 1; transform: translateY(0); }
+}
+
+/* ══════════════════════════════════
+   RESPONSIVE — TABLET (≤1040px)
+   ══════════════════════════════════ */
+@media (max-width: 1040px) {
+  .analyzer-layout { grid-template-columns: 1fr; }
+  .form-card { position: static; }
+  .feat-card--big { grid-column: span 1; }
+  .footer-grid { grid-template-columns: 1fr 1fr; }
+}
+
+/* ══════════════════════════════════
+   RESPONSIVE — MOBILE (≤768px)
+   ══════════════════════════════════ */
+@media (max-width: 768px) {
+  .nav__links, .nav__cta { display: none; }
+  .hamburger { display: flex; }
+
+  .hero { min-height: auto; padding: 2rem 0; }
+  .hero__body { grid-template-columns: 1fr; text-align: center; gap: 2rem; padding: 2.5rem 0; }
+  .hero__right { display: none; }
+  .hero__btns { justify-content: center; }
+  .hero__stats { justify-content: center; }
+  .hero__desc { margin-left: auto; margin-right: auto; }
+
+  .section { padding: 3.5rem 0; }
+  .how-arrow { transform: rotate(90deg); }
+  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
+  .footer-bottom { flex-direction: column; text-align: center; gap: .4rem; }
+  .result-banner { flex-direction: column; text-align: center; }
+  .result-banner__meta { justify-content: center; }
+  .model-grid { grid-template-columns: 1fr 1fr; }
+  .page-title { font-size: 1.75rem; }
+  .cta-block { padding: 3rem 1.5rem; }
+  .cta-block h2 { font-size: 1.7rem; }
+  .diff-grid { grid-template-columns: 1fr; }
+}
+
+/* ══════════════════════════════════
+   RESPONSIVE — SMALL MOBILE (≤520px)
+   ══════════════════════════════════ */
+@media (max-width: 520px) {
+  .container { padding: 0 1rem; }
+  .form-grid { grid-template-columns: 1fr; }
+  .nutrition-grid { grid-template-columns: repeat(2, 1fr); }
+  .model-grid { grid-template-columns: 1fr; }
+  .result-banner h2 { font-size: 1.3rem; }
+  .bmi-strip { flex-wrap: wrap; gap: 1rem; }
+  .hero__title { font-size: 2rem; }
+  .hero__stats { gap: 1.25rem; }
+  .hstat b { font-size: 1.55rem; }
+  .team-grid { grid-template-columns: 1fr; }
+  .section-head h2 { font-size: 1.55rem; }
+  .feat-grid { grid-template-columns: 1fr; }
+  .tech-grid { grid-template-columns: 1fr 1fr; }
+  .footer-grid { grid-template-columns: 1fr; }
+  .btn--lg { padding: .85rem 1.6rem; font-size: .9rem; }
+  .result-actions { flex-direction: column; align-items: center; }
+  .result-actions .btn { width: 100%; max-width: 280px; }
+  .how-grid { flex-direction: column; align-items: stretch; }
+  .how-card { max-width: 100%; }
+  .how-arrow { align-self: center; transform: rotate(90deg); }
+}
+
+/* ══════════════════════════════════
+   RESPONSIVE — VERY SMALL (≤380px)
+   ══════════════════════════════════ */
+@media (max-width: 380px) {
+  .tech-grid { grid-template-columns: 1fr; }
+  .nutrition-grid { grid-template-columns: repeat(2, 1fr); }
+  .hero__title { font-size: 1.75rem; }
+  .hero__badge { font-size: .72rem; }
+}