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

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-primary-bg: #F0F4F8;
  --color-accent-blue: #3498DB;
  --color-accent-green: #2ECC71;
  --color-neutral-gray: #A3A3A3;
  --color-dark-heading: #2C3E50;
  --color-white: #ffffff;
  --color-border: #dde4ec;
  --color-card-bg: #ffffff;
  --color-text-body: #4a5568;
  --color-text-light: #718096;
  --color-footer-bg: #2C3E50;
  --color-footer-text: #b0bec5;
  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Open Sans', sans-serif;
  --container-max: 1320px;
  --section-pad: 90px 0;
  --radius: 8px;
  --shadow-sm: 0 2px 8px rgba(44,62,80,0.08);
  --shadow-md: 0 6px 24px rgba(44,62,80,0.13);
  --transition: 0.25s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-primary-bg);
  color: var(--color-text-body);
  font-size: 16px;
  line-height: 1.7;
  min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-dark-heading);
  line-height: 1.25;
}

h1 { font-size: clamp(2rem, 4vw, 3.2rem); font-weight: 800; }
h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); font-weight: 700; }
h3 { font-size: clamp(1.15rem, 2vw, 1.5rem); font-weight: 600; }
h4 { font-size: 1.1rem; font-weight: 600; }

p { margin-bottom: 1rem; }
a { color: var(--color-accent-blue); text-decoration: none; transition: color var(--transition); }
a:hover { color: #1d6fa5; }

.container {
  width: 90%;
  max-width: var(--container-max);
  margin: 0 auto;
}

img { max-width: 100%; height: auto; display: block; }

.section-pad { padding: var(--section-pad); }
.section-pad-sm { padding: 60px 0; }

.text-accent { color: var(--color-accent-blue); }
.text-green { color: var(--color-accent-green); }
.text-gray { color: var(--color-neutral-gray); }
.text-dark { color: var(--color-dark-heading); }

.divider {
  width: 60px;
  height: 3px;
  background: var(--color-accent-blue);
  margin: 18px 0 28px 0;
  border-radius: 2px;
}
.divider-center { margin: 18px auto 28px auto; }

.label-tag {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent-blue);
  background: rgba(52,152,219,0.09);
  border: 1px solid rgba(52,152,219,0.25);
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 18px;
}

.btn {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 12px 28px;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition);
  text-align: center;
}

.btn-primary {
  background: var(--color-accent-blue);
  color: var(--color-white);
  border-color: var(--color-accent-blue);
}
.btn-primary:hover {
  background: #1d6fa5;
  border-color: #1d6fa5;
  color: var(--color-white);
  box-shadow: 0 4px 14px rgba(52,152,219,0.3);
}

.btn-outline {
  background: transparent;
  color: var(--color-accent-blue);
  border-color: var(--color-accent-blue);
}
.btn-outline:hover {
  background: var(--color-accent-blue);
  color: var(--color-white);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.78rem;
}

/* ===== NAVIGATION ===== */
#site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255,255,255,0.97);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 2px 12px rgba(44,62,80,0.07);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-dark-heading);
  letter-spacing: -0.02em;
  text-decoration: none;
}
.nav-logo span { color: var(--color-accent-blue); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-dark-heading);
  text-decoration: none;
  transition: color var(--transition);
  position: relative;
  padding-bottom: 4px;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent-blue);
  transition: width var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-accent-blue);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 6px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-dark-heading);
  transition: var(--transition);
}

/* ===== HERO ===== */
.hero-section {
  padding-top: 68px;
  background: var(--color-white);
  overflow: hidden;
  position: relative;
}

.hero-bg-strip {
  position: absolute;
  top: 0; right: 0;
  width: 45%;
  height: 100%;
  background: linear-gradient(135deg, #eaf4fb 0%, #f0f4f8 100%);
  z-index: 0;
  clip-path: polygon(12% 0, 100% 0, 100% 100%, 0 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  min-height: calc(100vh - 68px);
  padding: 80px 0;
}

.hero-text { max-width: 580px; }

.hero-h1 {
  margin-bottom: 24px;
  color: var(--color-dark-heading);
}

.hero-lead {
  font-size: 1.08rem;
  color: var(--color-text-light);
  margin-bottom: 36px;
  line-height: 1.75;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 36px;
}

.hero-disclaimer {
  font-size: 0.78rem;
  color: var(--color-neutral-gray);
  border-left: 3px solid var(--color-border);
  padding-left: 14px;
  line-height: 1.5;
}

.hero-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
}

.flask-container {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.flask-svg {
  width: 220px;
  height: 280px;
  filter: drop-shadow(0 8px 32px rgba(52,152,219,0.18));
}

.flask-liquid {
  transition: height 0.6s cubic-bezier(.4,2,.6,1);
}

.floating-icons {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0; left: 0;
  pointer-events: none;
}

.fi {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  animation: float-bob 3.5s ease-in-out infinite;
}
.fi:nth-child(2) { animation-delay: 0.5s; }
.fi:nth-child(3) { animation-delay: 1s; }
.fi:nth-child(4) { animation-delay: 1.5s; }
.fi:nth-child(5) { animation-delay: 2s; }

.fi-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-white);
  box-shadow: 0 3px 14px rgba(44,62,80,0.14);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
}

.fi-label {
  font-family: var(--font-heading);
  font-size: 0.62rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-accent-blue);
  letter-spacing: 0.06em;
  white-space: nowrap;
  background: var(--color-white);
  padding: 2px 7px;
  border-radius: 10px;
  box-shadow: var(--shadow-sm);
}

@keyframes float-bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ===== FORMULA BUILDER ===== */
.builder-section {
  background: var(--color-primary-bg);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 60px auto;
}

.builder-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 40px;
  align-items: start;
}

.ingredient-categories { display: flex; flex-direction: column; gap: 36px; }

.category-block {}

.category-title {
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-neutral-gray);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.category-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

.ingredient-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
}

.ingredient-card {
  background: var(--color-white);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  padding: 14px 12px;
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  user-select: none;
}

.ingredient-card:hover {
  border-color: var(--color-accent-blue);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.ingredient-card.selected {
  border-color: var(--color-accent-blue);
  background: rgba(52,152,219,0.07);
}

.ingredient-card.selected .ic-label { color: var(--color-accent-blue); }

.ic-icon {
  font-size: 1.8rem;
  margin-bottom: 8px;
  display: block;
}

.ic-label {
  font-family: var(--font-heading);
  font-size: 0.74rem;
  font-weight: 700;
  color: var(--color-dark-heading);
  display: block;
  margin-bottom: 4px;
}

.ic-desc {
  font-size: 0.68rem;
  color: var(--color-neutral-gray);
  line-height: 1.4;
}

.ic-add {
  display: inline-block;
  margin-top: 8px;
  font-size: 0.65rem;
  font-family: var(--font-heading);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent-blue);
  border: 1px solid var(--color-accent-blue);
  padding: 3px 10px;
  border-radius: 12px;
  transition: background var(--transition), color var(--transition);
}
.ingredient-card:hover .ic-add,
.ingredient-card.selected .ic-add {
  background: var(--color-accent-blue);
  color: var(--color-white);
}

/* Flask panel */
.flask-panel {
  position: sticky;
  top: 88px;
}

.flask-panel-inner {
  background: var(--color-white);
  border: 1.5px solid var(--color-border);
  border-radius: 12px;
  padding: 28px 22px;
  box-shadow: var(--shadow-md);
}

.flask-panel-title {
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-neutral-gray);
  margin-bottom: 18px;
  text-align: center;
}

.flask-visual-sm {
  display: flex;
  justify-content: center;
  margin-bottom: 18px;
}

.flask-visual-sm svg {
  width: 100px;
  height: 130px;
  filter: drop-shadow(0 4px 12px rgba(52,152,219,0.15));
}

.formula-list {
  list-style: none;
  margin-bottom: 18px;
  min-height: 80px;
}

.formula-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-size: 0.82rem;
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--color-dark-heading);
  padding: 6px 0;
  border-bottom: 1px solid var(--color-border);
}

.formula-list li:last-child { border-bottom: none; }

.formula-remove {
  background: none;
  border: none;
  color: var(--color-neutral-gray);
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  padding: 0;
  transition: color var(--transition);
  flex-shrink: 0;
}
.formula-remove:hover { color: #e74c3c; }

.formula-empty {
  font-size: 0.8rem;
  color: var(--color-neutral-gray);
  text-align: center;
  padding: 20px 0;
  font-style: italic;
}

.stability-bar-wrap {
  margin-bottom: 18px;
}
.stability-label {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-heading);
  font-size: 0.76rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--color-dark-heading);
}
.stability-bar {
  height: 8px;
  background: var(--color-border);
  border-radius: 4px;
  overflow: hidden;
}
.stability-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-accent-blue), var(--color-accent-green));
  border-radius: 4px;
  transition: width 0.6s cubic-bezier(.4,2,.6,1);
  width: 0%;
}

.btn-block { width: 100%; text-align: center; }

/* ===== RESULT SECTION ===== */
.result-section {
  background: var(--color-white);
}

.result-panel {
  display: none;
  background: var(--color-primary-bg);
  border: 1.5px solid var(--color-border);
  border-radius: 12px;
  padding: 40px;
  margin-top: 40px;
}

.result-panel.visible { display: block; }

.result-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.balance-bars { display: flex; flex-direction: column; gap: 14px; }

.balance-item-label {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-dark-heading);
  margin-bottom: 5px;
}

.balance-bar {
  height: 10px;
  background: var(--color-border);
  border-radius: 5px;
  overflow: hidden;
}

.balance-fill {
  height: 100%;
  border-radius: 5px;
  transition: width 0.8s ease;
}

.bf-blue { background: var(--color-accent-blue); }
.bf-green { background: var(--color-accent-green); }
.bf-mixed { background: linear-gradient(90deg, var(--color-accent-blue), var(--color-accent-green)); }

.result-formula-name {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-dark-heading);
  margin-bottom: 8px;
}

.result-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.result-tag {
  font-size: 0.72rem;
  font-family: var(--font-heading);
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 12px;
  background: rgba(52,152,219,0.1);
  color: var(--color-accent-blue);
}

.result-insight {
  font-size: 0.88rem;
  color: var(--color-text-light);
  background: rgba(255,255,255,0.7);
  border-left: 3px solid var(--color-accent-green);
  padding: 14px 16px;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin-top: 16px;
}

/* ===== STABLE FORMULA SECTION ===== */
.stable-section {
  background: var(--color-primary-bg);
}

.stable-feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.stable-img-wrap {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
}

.stable-img-wrap img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  border-radius: 12px;
  display: block;
}

.stable-img-badge {
  position: absolute;
  bottom: 24px;
  left: 24px;
  background: rgba(44,62,80,0.88);
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 8px 16px;
  border-radius: 20px;
  letter-spacing: 0.06em;
  backdrop-filter: blur(4px);
}

.component-pills {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin: 28px 0;
}

.component-pill {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 40px;
  padding: 10px 18px;
  box-shadow: var(--shadow-sm);
}

.cp-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
}

.cp-dot-blue { background: var(--color-accent-blue); }
.cp-dot-green { background: var(--color-accent-green); }
.cp-dot-gray { background: var(--color-neutral-gray); }
.cp-dot-dark { background: var(--color-dark-heading); }

.cp-text {
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-dark-heading);
  flex: 1;
}

.cp-note {
  font-size: 0.72rem;
  color: var(--color-neutral-gray);
}

/* ===== COMPARISON TABLE ===== */
.comparison-section {
  background: var(--color-white);
}

.comparison-table-wrap {
  overflow-x: auto;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.comparison-table th {
  background: var(--color-dark-heading);
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  padding: 16px 20px;
  text-align: left;
}

.comparison-table th:first-child { border-radius: 12px 0 0 0; }
.comparison-table th:last-child { border-radius: 0 12px 0 0; }

.comparison-table td {
  padding: 14px 20px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-body);
}

.comparison-table tr:last-child td { border-bottom: none; }

.comparison-table tr:nth-child(even) td { background: var(--color-primary-bg); }

.ct-plus {
  color: var(--color-accent-green);
  font-family: var(--font-heading);
  font-weight: 700;
}

.ct-bar {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.ct-mini-bar {
  width: 80px;
  height: 6px;
  background: var(--color-border);
  border-radius: 3px;
  overflow: hidden;
}

.ct-mini-fill {
  height: 100%;
  border-radius: 3px;
}

.ct-fill-a { background: var(--color-accent-blue); }
.ct-fill-b { background: var(--color-accent-green); }

/* ===== CHAT SECTION ===== */
.chat-section {
  background: var(--color-primary-bg);
}

.chat-layout {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 60px;
  align-items: start;
}

.chat-intro { }

.chat-features {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 28px;
}

.chat-feature-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.cfi-icon {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--color-accent-blue);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.cfi-icon-green { background: var(--color-accent-green); }

.cfi-text h4 {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--color-dark-heading);
}

.cfi-text p {
  font-size: 0.84rem;
  color: var(--color-text-light);
  margin-bottom: 0;
}

/* Chat widget */
.chat-widget {
  background: var(--color-white);
  border: 1.5px solid var(--color-border);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.chat-header {
  background: var(--color-dark-heading);
  color: var(--color-white);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.chat-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--color-accent-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.chat-header-info h4 {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 2px;
}

.chat-header-info span {
  font-size: 0.72rem;
  color: var(--color-accent-green);
  font-family: var(--font-heading);
  font-weight: 600;
}

.chat-messages {
  padding: 20px;
  min-height: 280px;
  max-height: 340px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
  background: #f9fbfc;
}

.chat-bubble {
  max-width: 85%;
  font-size: 0.84rem;
  line-height: 1.55;
  padding: 10px 14px;
  border-radius: 12px;
}

.bubble-bot {
  background: var(--color-white);
  color: var(--color-text-body);
  border: 1px solid var(--color-border);
  align-self: flex-start;
  border-radius: 4px 12px 12px 12px;
}

.bubble-user {
  background: var(--color-accent-blue);
  color: var(--color-white);
  align-self: flex-end;
  border-radius: 12px 4px 12px 12px;
}

.chat-input-area {
  padding: 14px;
  border-top: 1px solid var(--color-border);
  display: flex;
  gap: 10px;
  background: var(--color-white);
}

.chat-input {
  flex: 1;
  border: 1.5px solid var(--color-border);
  border-radius: 8px;
  padding: 9px 14px;
  font-family: var(--font-body);
  font-size: 0.84rem;
  color: var(--color-text-body);
  outline: none;
  transition: border-color var(--transition);
}

.chat-input:focus { border-color: var(--color-accent-blue); }

.chat-send {
  background: var(--color-accent-blue);
  color: var(--color-white);
  border: none;
  border-radius: 8px;
  padding: 9px 18px;
  cursor: pointer;
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 700;
  transition: background var(--transition);
}

.chat-send:hover { background: #1d6fa5; }

/* ===== POPULAR FORMULAS ===== */
.popular-section {
  background: var(--color-white);
}

.popular-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.formula-card {
  background: var(--color-primary-bg);
  border: 1.5px solid var(--color-border);
  border-radius: 12px;
  overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition);
}

.formula-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.formula-card-img img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.formula-card-body { padding: 22px; }

.formula-card-tag {
  font-family: var(--font-heading);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent-blue);
  margin-bottom: 10px;
}

.formula-card-body h3 {
  font-size: 1rem;
  margin-bottom: 8px;
}

.formula-card-body p {
  font-size: 0.82rem;
  color: var(--color-text-light);
  margin-bottom: 14px;
}

.formula-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.formula-chip {
  font-size: 0.65rem;
  font-family: var(--font-heading);
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 10px;
  background: rgba(52,152,219,0.1);
  color: var(--color-accent-blue);
}

/* ===== GALLERY SECTION ===== */
.gallery-section {
  background: var(--color-primary-bg);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: auto auto;
  gap: 16px;
}

.gallery-item {
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
}

.gallery-item img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  transition: transform 0.4s ease;
  display: block;
}

.gallery-item:hover img { transform: scale(1.04); }

.gallery-item.tall img { height: 460px; }
.gallery-item.wide { grid-column: span 2; }
.gallery-item.wide img { height: 260px; }

/* ===== FAQ ===== */
.faq-section {
  background: var(--color-white);
}

.faq-layout {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 60px;
  align-items: start;
}

.faq-sidebar {
  position: sticky;
  top: 100px;
}

.faq-list { display: flex; flex-direction: column; gap: 4px; }

.faq-item {
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-white);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  padding: 18px 22px;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-dark-heading);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  transition: color var(--transition), background var(--transition);
}

.faq-question:hover { color: var(--color-accent-blue); }

.faq-question.active {
  color: var(--color-accent-blue);
  background: rgba(52,152,219,0.05);
}

.faq-arrow {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  transition: transform var(--transition), border-color var(--transition);
}

.faq-question.active .faq-arrow {
  transform: rotate(180deg);
  border-color: var(--color-accent-blue);
}

.faq-answer {
  display: none;
  padding: 0 22px 18px 22px;
  font-size: 0.88rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

.faq-answer.open { display: block; }

/* ===== EDUCATIONAL DISCLAIMER ===== */
.edu-disclaimer-section {
  background: var(--color-primary-bg);
}

.edu-disclaimer-box {
  background: var(--color-white);
  border: 1.5px solid var(--color-border);
  border-radius: 12px;
  padding: 40px 48px;
  border-left: 5px solid var(--color-accent-blue);
}

.edu-disclaimer-box h2 {
  margin-bottom: 16px;
}

.edu-disclaimer-box p {
  font-size: 0.9rem;
  color: var(--color-text-light);
  margin-bottom: 0;
}

/* ===== INLINE CONTENT EDUCATIONAL MESSAGE ===== */
.edu-msg-strip {
  background: var(--color-dark-heading);
  color: rgba(255,255,255,0.85);
  text-align: center;
  padding: 18px 0;
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.edu-msg-strip span { color: var(--color-accent-green); }

/* ===== FOOTER ===== */
#site-footer {
  background: var(--color-footer-bg);
  color: var(--color-footer-text);
  padding: 72px 0 0 0;
}

.footer-top {
  display: grid;
  grid-template-columns: 280px 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 56px;
}

.footer-brand {}

.footer-logo {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--color-white);
  display: block;
  margin-bottom: 14px;
  text-decoration: none;
}

.footer-logo span { color: var(--color-accent-blue); }

.footer-tagline {
  font-size: 0.82rem;
  color: var(--color-footer-text);
  line-height: 1.6;
  margin-bottom: 16px;
}

.footer-edu-msg {
  font-size: 0.75rem;
  color: var(--color-accent-green);
  font-family: var(--font-heading);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  border: 1px solid rgba(46,204,113,0.3);
  padding: 6px 12px;
  border-radius: 4px;
  display: inline-block;
}

.footer-col-title {
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-white);
  margin-bottom: 18px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 0.84rem;
  color: var(--color-footer-text);
  text-decoration: none;
  transition: color var(--transition);
}

.footer-links a:hover { color: var(--color-accent-blue); }

.footer-contact-item {
  display: flex;
  gap: 10px;
  margin-bottom: 12px;
  font-size: 0.84rem;
}

.fci-icon {
  color: var(--color-accent-blue);
  flex-shrink: 0;
  width: 18px;
  text-align: center;
}

.footer-schedule {
  font-size: 0.8rem;
  color: var(--color-footer-text);
  margin-top: 6px;
  padding-top: 10px;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.footer-schedule strong {
  color: var(--color-white);
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-heading);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.footer-disclaimer {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 28px 0;
  margin-top: 0;
}

.footer-disclaimer p {
  font-size: 0.78rem;
  color: rgba(176,190,197,0.75);
  line-height: 1.65;
  margin-bottom: 10px;
}

.footer-disclaimer p:last-child { margin-bottom: 0; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom-copy {
  font-size: 0.78rem;
  color: rgba(176,190,197,0.6);
}

.footer-bottom-policies {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.footer-bottom-policies a {
  font-size: 0.75rem;
  color: rgba(176,190,197,0.6);
  text-decoration: none;
  transition: color var(--transition);
}

.footer-bottom-policies a:hover { color: var(--color-accent-blue); }

/* ===== COOKIE BANNER ===== */
#cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  z-index: 9999;
  background: var(--color-dark-heading);
  border-top: 3px solid var(--color-accent-blue);
  padding: 18px 0;
  box-shadow: 0 -4px 24px rgba(44,62,80,0.22);
  display: none;
}

.cookie-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.cookie-text {
  font-size: 0.84rem;
  color: rgba(255,255,255,0.85);
  flex: 1;
  min-width: 220px;
}

.cookie-text a {
  color: var(--color-accent-blue);
  text-decoration: underline;
}

.cookie-btns {
  display: flex;
  gap: 10px;
  flex-shrink: 0;
}

.cookie-btn {
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 8px 18px;
  border-radius: var(--radius);
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
}

.cb-accept {
  background: var(--color-accent-blue);
  color: var(--color-white);
  border-color: var(--color-accent-blue);
}
.cb-accept:hover { background: #1d6fa5; border-color: #1d6fa5; }

.cb-reject {
  background: transparent;
  color: rgba(255,255,255,0.7);
  border-color: rgba(255,255,255,0.25);
}
.cb-reject:hover { border-color: rgba(255,255,255,0.6); color: var(--color-white); }

.cb-read {
  background: transparent;
  color: var(--color-accent-blue);
  border-color: var(--color-accent-blue);
}
.cb-read:hover { background: var(--color-accent-blue); color: var(--color-white); }

/* ===== PAGE HERO (inner pages) ===== */
.page-hero {
  padding-top: 68px;
  background: var(--color-white);
}

.page-hero-inner {
  padding: 64px 0 48px 0;
  border-bottom: 1px solid var(--color-border);
}

.page-hero-inner .label-tag { display: block; width: fit-content; }

.page-hero-inner h1 { margin-top: 12px; }

/* ===== ABOUT PAGE ===== */
.about-layout {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 60px;
  align-items: start;
}

.timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 12px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}

.timeline-item {
  display: flex;
  gap: 22px;
  align-items: flex-start;
  padding-bottom: 32px;
  position: relative;
}

.timeline-dot {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--color-accent-blue);
  border: 3px solid var(--color-white);
  box-shadow: 0 0 0 3px var(--color-accent-blue);
  flex-shrink: 0;
  z-index: 1;
  margin-top: 2px;
}

.timeline-content h4 {
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--color-dark-heading);
  margin-bottom: 6px;
}

.timeline-content p {
  font-size: 0.82rem;
  color: var(--color-text-light);
  margin-bottom: 0;
  line-height: 1.6;
}

.about-side-timeline {
  position: sticky;
  top: 100px;
}

.side-timeline-label {
  font-family: var(--font-heading);
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-neutral-gray);
  margin-bottom: 18px;
}

.side-tl-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 22px;
}

.side-tl-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-accent-blue);
  flex-shrink: 0;
  margin-top: 5px;
}

.side-tl-content {}

.side-tl-year {
  font-family: var(--font-heading);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--color-accent-blue);
  margin-bottom: 2px;
}

.side-tl-text {
  font-size: 0.78rem;
  color: var(--color-text-light);
  line-height: 1.5;
}

.pull-quote {
  border-left: 4px solid var(--color-accent-blue);
  margin: 36px 0;
  padding: 16px 24px;
  background: rgba(52,152,219,0.05);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.pull-quote p {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-style: italic;
  color: var(--color-dark-heading);
  margin-bottom: 0;
  line-height: 1.6;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.value-card {
  background: var(--color-primary-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px 22px;
}

.value-icon {
  font-size: 1.8rem;
  margin-bottom: 14px;
  display: block;
  width: 52px;
  height: 52px;
  background: rgba(52,152,219,0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.value-card h3 {
  font-size: 0.95rem;
  margin-bottom: 8px;
}

.value-card p {
  font-size: 0.82rem;
  color: var(--color-text-light);
  margin-bottom: 0;
}

/* ===== CONTACT PAGE ===== */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 60px;
  align-items: start;
}

.contact-form-wrap {}

.form-disclaimer {
  font-size: 0.8rem;
  color: var(--color-text-light);
  background: rgba(52,152,219,0.05);
  border: 1px solid rgba(52,152,219,0.15);
  border-radius: var(--radius);
  padding: 14px 18px;
  margin-bottom: 28px;
  line-height: 1.6;
}

.form-group {
  margin-bottom: 22px;
}

.form-label {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--color-dark-heading);
  margin-bottom: 8px;
}

.form-control {
  width: 100%;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  padding: 11px 16px;
  font-family: var(--font-body);
  font-size: 0.88rem;
  color: var(--color-text-body);
  background: var(--color-white);
  outline: none;
  transition: border-color var(--transition);
  resize: vertical;
}

.form-control:focus { border-color: var(--color-accent-blue); }

.contact-info-panel {
  background: var(--color-dark-heading);
  border-radius: 12px;
  padding: 36px 32px;
  color: rgba(255,255,255,0.85);
}

.contact-info-panel h2 {
  color: var(--color-white);
  font-size: 1.3rem;
  margin-bottom: 28px;
}

.cip-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.cip-item:last-of-type { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }

.cip-icon-wrap {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(52,152,219,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.cip-label {
  font-family: var(--font-heading);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent-blue);
  margin-bottom: 4px;
}

.cip-value {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.85);
  line-height: 1.5;
}

/* ===== THANK YOU PAGE ===== */
.thankyou-section {
  min-height: calc(100vh - 68px - 400px);
  display: flex;
  align-items: center;
  justify-content: center;
}

.thankyou-box {
  text-align: center;
  max-width: 560px;
  margin: 0 auto;
  background: var(--color-white);
  border: 1.5px solid var(--color-border);
  border-radius: 16px;
  padding: 60px 48px;
  box-shadow: var(--shadow-md);
}

.thankyou-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: rgba(46,204,113,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px auto;
  font-size: 2rem;
}

.thankyou-box h1 {
  font-size: 1.8rem;
  margin-bottom: 16px;
}

.thankyou-box p {
  font-size: 0.9rem;
  color: var(--color-text-light);
  margin-bottom: 12px;
}

/* ===== POLICY PAGES ===== */
.policy-content {
  max-width: 820px;
  margin: 0 auto;
}

.policy-content h2 {
  margin-top: 40px;
  margin-bottom: 14px;
  font-size: 1.3rem;
}

.policy-content h3 {
  margin-top: 28px;
  margin-bottom: 10px;
  font-size: 1.05rem;
}

.policy-content p, .policy-content li {
  font-size: 0.9rem;
  color: var(--color-text-body);
  line-height: 1.75;
  margin-bottom: 12px;
}

.policy-content ul, .policy-content ol {
  padding-left: 24px;
  margin-bottom: 16px;
}

.policy-content a { color: var(--color-accent-blue); }

.policy-meta {
  font-size: 0.8rem;
  color: var(--color-neutral-gray);
  font-family: var(--font-heading);
  margin-bottom: 40px;
}

.policy-section-divider {
  height: 1px;
  background: var(--color-border);
  margin: 36px 0;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1100px) {
  .footer-top { grid-template-columns: 1fr 1fr; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-item.tall img { height: 340px; }
}

@media (max-width: 900px) {
  .hero-content { grid-template-columns: 1fr; padding: 60px 0; min-height: auto; }
  .hero-bg-strip { display: none; }
  .hero-visual { display: none; }
  .builder-grid { grid-template-columns: 1fr; }
  .flask-panel { position: static; }
  .stable-feature-grid { grid-template-columns: 1fr; }
  .result-grid { grid-template-columns: 1fr; }
  .chat-layout { grid-template-columns: 1fr; }
  .popular-grid { grid-template-columns: 1fr 1fr; }
  .faq-layout { grid-template-columns: 1fr; }
  .faq-sidebar { position: static; }
  .about-layout { grid-template-columns: 1fr; }
  .about-side-timeline { position: static; display: none; }
  .contact-layout { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 700px) {
  .nav-links {
    display: none;
    position: fixed;
    top: 68px; left: 0;
    width: 100%;
    background: var(--color-white);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 24px;
    gap: 16px;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .popular-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: 1fr 1fr; }
  .gallery-item.tall img { height: 260px; }
  .gallery-item.wide { grid-column: span 1; }
  .values-grid { grid-template-columns: 1fr; }
  .comparison-table th, .comparison-table td { padding: 10px 14px; font-size: 0.8rem; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .edu-disclaimer-box { padding: 28px 24px; }
  .thankyou-box { padding: 40px 24px; }
  .cookie-inner { flex-direction: column; gap: 14px; }
}

@media (max-width: 480px) {
  .gallery-grid { grid-template-columns: 1fr; }
  .gallery-item.wide { grid-column: span 1; }
  .ingredient-cards { grid-template-columns: repeat(2, 1fr); }
}