/* ==========================================================================
   ALTO NOVO — The Peak Articular Solution
   Alpine Tradition & Polished Copper Theme (Preset 2)
   Colors: Cream (#FAF7F2), Royal Navy (#0E2038), Polished Copper (#C58F44),
           Alpine Teal (#0F766E), Crisp White (#FFFFFF)
   Fonts: Playfair Display + Plus Jakarta Sans / Inter
   ========================================================================== */

:root {
  --color-bg: #FAF7F2;
  --color-bg-alt: #F4EFE6;
  --color-surface: #FFFFFF;
  --color-navy: #0E2038;
  --color-navy-dark: #071220;
  --color-navy-light: #1A365D;
  --color-copper: #C58F44;
  --color-copper-dark: #A5722E;
  --color-copper-light: #DFAB62;
  --color-copper-gradient: linear-gradient(135deg, #DFAB62 0%, #C58F44 50%, #9C6724 100%);
  --color-teal: #0F766E;
  --color-teal-light: #14B8A6;
  --color-teal-bg: #F0FDFA;
  --color-text-main: #1E293B;
  --color-text-muted: #64748B;
  --color-text-light: #94A3B8;
  --color-border: #E8E1D5;
  --color-border-dark: #2A3F5F;
  --color-accent-gold: #D4AF37;
  --color-success: #16A34A;
  --color-danger: #DC2626;

  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  --shadow-sm: 0 1px 3px rgba(14, 32, 56, 0.05);
  --shadow-md: 0 4px 12px rgba(14, 32, 56, 0.08);
  --shadow-lg: 0 12px 30px rgba(14, 32, 56, 0.12);
  --shadow-xl: 0 20px 45px rgba(14, 32, 56, 0.16);

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --container-max: 1240px;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text-main);
  line-height: 1.65;
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

img, picture, svg, video {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  outline: none;
  border: none;
}

button {
  cursor: pointer;
  background: none;
}

ul, ol {
  list-style: none;
}

/* Typography Utility */
.font-serif { font-family: var(--font-serif); }
.font-sans { font-family: var(--font-sans); }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  color: var(--color-navy);
  line-height: 1.25;
  font-weight: 700;
}

.text-copper { color: var(--color-copper); }
.text-teal { color: var(--color-teal); }
.text-navy { color: var(--color-navy); }
.text-muted { color: var(--color-text-muted); }
.text-white { color: #FFFFFF; }

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-copper);
  background: rgba(197, 143, 68, 0.1);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
  border: 1px solid rgba(197, 143, 68, 0.25);
}

.section-label.label-dark {
  background: rgba(223, 171, 98, 0.15);
  color: var(--color-copper-light);
  border-color: rgba(223, 171, 98, 0.3);
}

.section-title {
  font-size: clamp(1.85rem, 3.5vw, 2.75rem);
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.section-desc {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  max-width: 720px;
  margin: 0 auto;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(250, 247, 242, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: all var(--transition-normal);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 1rem;
  flex-wrap: nowrap;
}

/* Brand Logo */
.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-crest {
  width: 40px;
  height: 40px;
  background: var(--color-navy);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-copper-light);
  border: 1px solid var(--color-copper);
  box-shadow: 0 2px 6px rgba(14, 32, 56, 0.2);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: var(--color-navy);
  line-height: 1.1;
}

.brand-tagline {
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-copper-dark);
  font-weight: 600;
}

/* Desktop Nav Links */
.desktop-nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-navy);
  padding: 0.5rem 0;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-copper);
  transition: width var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: var(--color-copper-dark);
}

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

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

/* Language Switcher */
.lang-switcher {
  display: inline-flex;
  align-items: center;
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 2px 4px;
  box-shadow: var(--shadow-sm);
}

.lang-btn {
  padding: 4px 8px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-text-muted);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 4px;
}

.lang-btn.active {
  background: var(--color-navy);
  color: #FFFFFF;
}

.lang-btn:hover:not(.active) {
  color: var(--color-navy);
}

/* Cart Trigger */
.cart-trigger {
  position: relative;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-navy);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.cart-trigger:hover {
  border-color: var(--color-copper);
  color: var(--color-copper);
  transform: translateY(-1px);
}

.cart-count {
  position: absolute;
  top: -4px;
  right: -4px;
  width: 20px;
  height: 20px;
  background: var(--color-copper);
  color: #FFFFFF;
  font-size: 0.6875rem;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid #FFFFFF;
}

/* Mobile Menu Button */
.burger-btn {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  background: #FFFFFF;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  transition: all var(--transition-fast);
}

.burger-line {
  width: 20px;
  height: 2px;
  background-color: var(--color-navy);
  transition: transform var(--transition-normal), opacity var(--transition-normal);
}

.burger-btn.active .burger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.burger-btn.active .burger-line:nth-child(2) {
  opacity: 0;
}

.burger-btn.active .burger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Drawer */
.mobile-drawer-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(14, 32, 56, 0.6);
  backdrop-filter: blur(4px);
  z-index: 1050;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.mobile-drawer-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.mobile-drawer {
  position: fixed;
  top: 0;
  right: -320px;
  width: 300px;
  max-width: 85vw;
  height: 100vh;
  background-color: var(--color-bg);
  box-shadow: -5px 0 25px rgba(0, 0, 0, 0.15);
  z-index: 1060;
  display: flex;
  flex-direction: column;
  padding: 1.5rem;
  transition: transform var(--transition-normal);
}

.mobile-drawer.active {
  transform: translateX(-320px);
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 1.5rem;
}

.drawer-close {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-navy);
}

.drawer-nav {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex: 1;
}

.drawer-nav .nav-link {
  font-size: 1.0625rem;
  padding: 0.75rem 0.5rem;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.drawer-nav .nav-link:hover, .drawer-nav .nav-link.active {
  background-color: rgba(197, 143, 68, 0.08);
}

.drawer-footer {
  padding-top: 1.25rem;
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 0.85rem 1.65rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  cursor: pointer;
  text-align: center;
  min-height: 48px;
}

.btn-copper {
  background: var(--color-copper-gradient);
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(197, 143, 68, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-copper:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(197, 143, 68, 0.45);
}

.btn-navy {
  background: var(--color-navy);
  color: #FFFFFF;
  border: 1px solid var(--color-navy-dark);
}

.btn-navy:hover {
  background: var(--color-navy-light);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--color-navy);
  border: 1px solid var(--color-navy);
}

.btn-outline:hover {
  background: var(--color-navy);
  color: #FFFFFF;
}

.btn-outline-copper {
  background: transparent;
  color: var(--color-copper-dark);
  border: 1px solid var(--color-copper);
}

.btn-outline-copper:hover {
  background: var(--color-copper);
  color: #FFFFFF;
}

.btn-sm {
  font-size: 0.8125rem;
  padding: 0.5rem 1rem;
  min-height: 38px;
}

.btn-lg {
  font-size: 1.0625rem;
  padding: 1rem 2rem;
  border-radius: var(--radius-md);
  min-height: 54px;
}

.btn-block {
  width: 100%;
}

/* Hero Sections */
.hero-section {
  padding: 4.5rem 0 3.5rem;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-content h1 {
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  line-height: 1.18;
  margin-bottom: 1.25rem;
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 2rem;
}

.hero-meta-badge {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  padding: 0.65rem 1rem;
  border-radius: var(--radius-md);
  width: fit-content;
  box-shadow: var(--shadow-sm);
  margin-bottom: 1.75rem;
}

.hero-meta-badge img {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--color-copper);
}

.hero-meta-text {
  font-size: 0.8125rem;
  line-height: 1.35;
}

.hero-meta-text strong {
  display: block;
  color: var(--color-navy);
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
}

.hero-trust-row {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.trust-item svg {
  color: var(--color-teal);
  flex-shrink: 0;
}

/* Hero Visual Box */
.hero-visual-card {
  position: relative;
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-xl);
}

.hero-image-wrapper {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #F1ECE1;
}

.hero-image-wrapper img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.hero-floating-tag {
  position: absolute;
  bottom: 1.25rem;
  left: 1.25rem;
  right: 1.25rem;
  background: rgba(14, 32, 56, 0.92);
  backdrop-filter: blur(8px);
  color: #FFFFFF;
  padding: 0.85rem 1.15rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(223, 171, 98, 0.4);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.8125rem;
}

.hero-floating-tag .tag-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-copper);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  flex-shrink: 0;
}

/* Feature Cards & Grids */
.section {
  padding: 5rem 0;
  position: relative;
}

.section-dark {
  background-color: var(--color-navy);
  color: #FFFFFF;
}

.section-dark h2, .section-dark h3, .section-dark h4 {
  color: #FFFFFF;
}

.section-dark .section-desc {
  color: var(--color-text-light);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

/* Anatomy Infographic Section */
.anatomy-card {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.anatomy-header {
  margin-bottom: 2rem;
}

.anatomy-interactive-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
}

.anatomy-diagram-box {
  background: #FAF7F2;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  text-align: center;
  position: relative;
}

.diagram-svg-container {
  max-width: 380px;
  margin: 0 auto;
}

.anatomy-layers-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.layer-item {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  transition: all var(--transition-fast);
  border-left: 4px solid var(--color-copper);
}

.layer-item:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-copper);
}

.layer-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.4rem;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-navy);
}

.layer-badge {
  font-size: 0.6875rem;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-full);
  background: var(--color-teal-bg);
  color: var(--color-teal);
  font-weight: 700;
}

/* Stat Box */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-top: 3.5rem;
}

.stat-card {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.75rem 1.25rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast);
}

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

.stat-number {
  font-family: var(--font-serif);
  font-size: 2.75rem;
  font-weight: 800;
  color: var(--color-copper-dark);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-navy);
  margin-bottom: 0.35rem;
}

.stat-caption {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* Diary Timeline (Storia) */
.timeline-diary {
  position: relative;
  max-width: 840px;
  margin: 3rem auto 0;
  padding-left: 2rem;
}

.timeline-diary::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 7px;
  width: 2px;
  background: var(--color-copper);
}

.timeline-entry {
  position: relative;
  margin-bottom: 2.5rem;
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem 1.75rem;
  box-shadow: var(--shadow-sm);
}

.timeline-entry::before {
  content: '';
  position: absolute;
  top: 1.5rem;
  left: -2.35rem;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-navy);
  border: 3px solid var(--color-copper);
  z-index: 2;
}

.timeline-day {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-copper-dark);
  background: rgba(197, 143, 68, 0.12);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  margin-bottom: 0.75rem;
}

.timeline-title {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--color-navy);
}

/* Formula 4 Components Grid */
.matrix-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  margin-top: 3rem;
}

.matrix-card {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  box-shadow: var(--shadow-md);
  position: relative;
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
}

.matrix-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-copper);
}

.matrix-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.matrix-icon-box {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: rgba(197, 143, 68, 0.12);
  color: var(--color-copper);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(197, 143, 68, 0.25);
}

.matrix-dose-pill {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-navy);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-full);
}

.matrix-title {
  font-size: 1.35rem;
  margin-bottom: 0.4rem;
}

.matrix-role {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-teal);
  margin-bottom: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.matrix-mechanism {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 1.25rem;
  flex: 1;
}

.matrix-metric-box {
  background: var(--color-bg);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  font-size: 0.8125rem;
  border-left: 3px solid var(--color-copper);
}

/* Posology Strip */
.posology-card {
  background: linear-gradient(135deg, var(--color-navy) 0%, #152A4A 100%);
  color: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  margin: 3.5rem 0;
  border: 1px solid var(--color-border-dark);
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2.5rem;
  align-items: center;
}

.posology-steps {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.posology-step {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.step-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-copper);
  color: #FFFFFF;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  flex-shrink: 0;
}

/* Formula Package Cards (NO PRICES ON FORMULA.HTML) */
.packages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 3rem;
}

.package-card {
  background: #FFFFFF;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  text-align: center;
  position: relative;
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
}

.package-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-copper);
}

.package-card.highlight {
  border-color: var(--color-copper);
  box-shadow: 0 10px 30px rgba(197, 143, 68, 0.2);
  transform: scale(1.03);
  z-index: 2;
}

.package-ribbon {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-copper-gradient);
  color: #FFFFFF;
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.35rem 1.25rem;
  border-radius: var(--radius-full);
  box-shadow: 0 4px 10px rgba(197, 143, 68, 0.3);
  white-space: nowrap;
}

.package-title {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.package-duration {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

.package-image {
  max-width: 180px;
  margin: 0 auto 1.5rem;
}

.package-features {
  text-align: left;
  margin-bottom: 2rem;
  flex: 1;
}

.package-features li {
  font-size: 0.875rem;
  padding: 0.45rem 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px dashed var(--color-border);
}

.package-features li:last-child {
  border-bottom: none;
}

/* Tabs & Interactive Assessments */
.tabs-nav {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.tab-btn {
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.9375rem;
  background: #FFFFFF;
  color: var(--color-navy);
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: var(--shadow-sm);
}

.tab-btn.active {
  background: var(--color-navy);
  color: #FFFFFF;
  border-color: var(--color-navy);
  box-shadow: var(--shadow-md);
}

.tab-panel {
  display: none;
  animation: fadeIn 0.35s ease;
}

.tab-panel.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Water Calculator Card */
.calc-card {
  max-width: 880px;
  margin: 0 auto;
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
}

.calc-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2.5rem;
  align-items: center;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 0.5rem;
}

.slider-val-box {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.slider-val-box span {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-copper-dark);
}

input[type="range"] {
  width: 100%;
  height: 8px;
  background: var(--color-border);
  border-radius: 4px;
  -webkit-appearance: none;
  appearance: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-copper);
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
  border: 2px solid #FFFFFF;
}

.select-styled {
  width: 100%;
  padding: 0.85rem 1rem;
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-main);
  font-weight: 500;
  appearance: auto;
}

.calc-result-box {
  background: linear-gradient(135deg, #FAF7F2 0%, #F1ECE1 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2rem;
  text-align: center;
}

.water-total-val {
  font-family: var(--font-serif);
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--color-teal);
  line-height: 1;
  margin: 0.75rem 0;
}

.water-schedule {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1.5rem;
  text-align: left;
}

.water-schedule-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0.75rem;
  background: #FFFFFF;
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  border: 1px solid var(--color-border);
}

/* WOMAC Assessment */
.womac-box {
  max-width: 820px;
  margin: 0 auto;
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
}

.womac-progress-bar-wrap {
  width: 100%;
  height: 8px;
  background: var(--color-border);
  border-radius: 4px;
  margin-bottom: 2rem;
  overflow: hidden;
}

.womac-progress-bar {
  height: 100%;
  width: 20%;
  background: var(--color-copper-gradient);
  transition: width var(--transition-normal);
}

.womac-question-container {
  min-height: 240px;
}

.womac-q-num {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-copper);
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

.womac-q-title {
  font-size: 1.25rem;
  color: var(--color-navy);
  margin-bottom: 1.5rem;
}

.womac-options-grid {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.womac-option-btn {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: #FAF7F2;
  text-align: left;
  font-weight: 500;
  font-size: 0.9375rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.womac-option-btn:hover {
  border-color: var(--color-copper);
  background: #FFFFFF;
  transform: translateX(4px);
}

.womac-option-btn.selected {
  border-color: var(--color-navy);
  background: var(--color-navy);
  color: #FFFFFF;
}

.womac-result-card {
  display: none;
  background: #FAF7F2;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2rem;
  margin-top: 1.5rem;
  text-align: center;
}

/* Nutrient Checklist */
.checklist-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  max-width: 960px;
  margin: 0 auto;
}

.checklist-card {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
}

.checklist-card:hover {
  border-color: var(--color-copper);
  box-shadow: var(--shadow-md);
}

.checklist-card.expanded {
  border-color: var(--color-copper);
  background: #FFFDF9;
}

.checklist-header {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.checklist-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(197, 143, 68, 0.12);
  color: var(--color-copper-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.checklist-toggle-detail {
  display: none;
  margin-top: 1.25rem;
  padding-top: 1.25rem;
  border-top: 1px dashed var(--color-border);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.checklist-card.expanded .checklist-toggle-detail {
  display: block;
}

/* Certificates Grid & Academic Styling */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
  margin-top: 3rem;
}

.cert-card {
  background: #FFFFFF;
  border: 4px double var(--color-border);
  border-radius: var(--radius-md);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
  position: relative;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.cert-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-copper);
  box-shadow: var(--shadow-xl);
}

.cert-inner-frame {
  border: 1px solid rgba(197, 143, 68, 0.3);
  padding: 1.5rem;
  border-radius: 4px;
  position: relative;
  background: radial-gradient(circle at center, #FFFFFF 60%, #FCF9F3 100%);
}

.cert-seal {
  width: 68px;
  height: 68px;
  border-radius: 50%;
  background: var(--color-copper-gradient);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem;
  box-shadow: 0 4px 12px rgba(197, 143, 68, 0.35);
  border: 2px dashed rgba(255, 255, 255, 0.8);
}

.cert-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  text-align: center;
  color: var(--color-navy);
  margin-bottom: 0.5rem;
}

.cert-subtitle {
  font-size: 0.75rem;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-copper-dark);
  margin-bottom: 1.25rem;
}

.cert-text {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  text-align: center;
  margin-bottom: 1.5rem;
}

.cert-signature-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
  font-size: 0.6875rem;
  color: var(--color-navy);
}

.cert-calligraphy {
  font-family: 'Brush Script MT', 'Dancing Script', cursive, serif;
  font-size: 1.35rem;
  color: var(--color-navy-light);
}

/* Lightbox Modal */
.lightbox-modal {
  position: fixed;
  inset: 0;
  background-color: rgba(14, 32, 56, 0.88);
  backdrop-filter: blur(6px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.lightbox-modal.active {
  display: flex;
}

.lightbox-content {
  background: #FFFFFF;
  max-width: 680px;
  width: 100%;
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  position: relative;
  box-shadow: var(--shadow-xl);
  border: 4px double var(--color-copper);
  animation: zoomIn 0.3s ease;
}

@keyframes zoomIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.lightbox-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-navy);
  cursor: pointer;
}

/* Articles Grid */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 3rem;
}

.article-card {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
}

.article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-copper);
}

.article-thumb {
  height: 200px;
  background: #E8E1D5;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.article-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.article-card:hover .article-thumb img {
  transform: scale(1.05);
}

.article-body {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.article-meta {
  font-size: 0.75rem;
  color: var(--color-copper-dark);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
}

.article-title {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  line-height: 1.35;
}

.article-excerpt {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 1.25rem;
  flex: 1;
}

/* Cart Drawer */
.cart-drawer-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(14, 32, 56, 0.6);
  backdrop-filter: blur(4px);
  z-index: 1100;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.cart-drawer-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.cart-drawer {
  position: fixed;
  top: 0;
  right: -420px;
  width: 400px;
  max-width: 90vw;
  height: 100vh;
  background: #FFFFFF;
  box-shadow: -8px 0 30px rgba(0, 0, 0, 0.2);
  z-index: 1110;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-normal);
}

.cart-drawer.active {
  transform: translateX(-420px);
}

.cart-drawer-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.cart-drawer-items {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.cart-empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--color-text-muted);
}

.cart-item {
  display: flex;
  gap: 1rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--color-border);
  position: relative;
}

.cart-item-img {
  width: 72px;
  height: 72px;
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  object-fit: contain;
  border: 1px solid var(--color-border);
}

.cart-item-info {
  flex: 1;
}

.cart-item-title {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 0.25rem;
}

.cart-item-price {
  font-weight: 700;
  color: var(--color-copper-dark);
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.cart-item-qty {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.qty-btn {
  width: 26px;
  height: 26px;
  border-radius: 4px;
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  background: var(--color-bg);
  color: var(--color-navy);
}

.qty-val {
  font-size: 0.875rem;
  font-weight: 700;
  min-width: 20px;
  text-align: center;
}

.cart-item-remove {
  color: var(--color-text-light);
  font-size: 0.75rem;
  text-decoration: underline;
  cursor: pointer;
  margin-left: auto;
}

.cart-item-remove:hover {
  color: var(--color-danger);
}

.cart-drawer-footer {
  padding: 1.5rem;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg);
}

.cart-summary-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
}

.cart-total-row {
  display: flex;
  justify-content: space-between;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-navy);
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--color-border);
}

/* Cart Checkout Page (Carrello) */
.checkout-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3rem;
  margin-top: 2.5rem;
}

.checkout-box {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
}

.checkout-heading {
  font-size: 1.35rem;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.form-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-input {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: #FAF7F2;
  transition: border-color var(--transition-fast);
}

.form-input:focus {
  border-color: var(--color-copper);
  background: #FFFFFF;
}

.payment-methods-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1rem;
}

.payment-method-card {
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 1rem;
}

.payment-method-card.selected {
  border-color: var(--color-copper);
  background: #FFFDF9;
}

.payment-badge {
  margin-left: auto;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-teal);
  background: var(--color-teal-bg);
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-full);
}

.trust-badges-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
  text-align: center;
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* Thank You Page (Grazie) */
.thankyou-wrapper {
  max-width: 780px;
  margin: 3rem auto;
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 3rem;
  box-shadow: var(--shadow-lg);
}

.order-timeline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 2.5rem 0;
  position: relative;
}

.order-timeline::before {
  content: '';
  position: absolute;
  top: 18px;
  left: 10%;
  right: 10%;
  height: 3px;
  background: var(--color-border);
  z-index: 1;
}

.order-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  position: relative;
  z-index: 2;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.order-step.completed {
  color: var(--color-navy);
}

.order-step-bubble {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #FFFFFF;
  border: 2px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
}

.order-step.completed .order-step-bubble {
  background: var(--color-copper);
  border-color: var(--color-copper);
  color: #FFFFFF;
}

.doctor-letter-box {
  background: #FAF7F2;
  border-left: 4px solid var(--color-copper);
  border-radius: var(--radius-sm);
  padding: 1.75rem;
  margin-top: 2rem;
  font-size: 0.9375rem;
  line-height: 1.7;
}

/* Footer */
.site-footer {
  background-color: var(--color-navy);
  color: #FFFFFF;
  padding: 4.5rem 0 2rem;
  margin-top: 5rem;
  border-top: 3px solid var(--color-copper);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-col h4 {
  color: #FFFFFF;
  font-size: 1.125rem;
  margin-bottom: 1.25rem;
  position: relative;
  padding-bottom: 0.5rem;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 28px;
  height: 2px;
  background: var(--color-copper);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  font-size: 0.875rem;
  color: var(--color-text-light);
}

.footer-links a:hover {
  color: var(--color-copper-light);
  transform: translateX(3px);
}

.footer-disclaimer {
  font-size: 0.75rem;
  color: #94A3B8;
  line-height: 1.6;
  border-top: 1px solid var(--color-border-dark);
  padding-top: 2rem;
  text-align: center;
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 1.5rem;
  left: 1.5rem;
  right: 1.5rem;
  max-width: 580px;
  margin: 0 auto;
  background: rgba(14, 32, 56, 0.96);
  backdrop-filter: blur(10px);
  color: #FFFFFF;
  border: 1px solid rgba(223, 171, 98, 0.4);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow-xl);
  z-index: 1500;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  animation: slideUp 0.4s ease;
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.cookie-actions {
  display: flex;
  gap: 0.75rem;
  justify-content: flex-end;
}

/* Mobile Header (<480px Strict 1 Row) */
@media (max-width: 480px) {
  .header-inner {
    height: 60px;
    gap: 0.35rem;
    flex-wrap: nowrap;
  }

  .brand-crest {
    width: 32px;
    height: 32px;
  }

  .brand-crest svg {
    width: 18px;
    height: 18px;
  }

  .brand-name {
    font-size: 1.05rem;
  }

  .brand-tagline {
    display: none;
  }

  .header-actions {
    gap: 0.4rem;
  }

  .lang-switcher {
    padding: 1px 2px;
  }

  .lang-btn {
    padding: 3px 5px;
    font-size: 0.7rem;
  }

  .cart-trigger {
    width: 36px;
    height: 36px;
  }

  .burger-btn {
    width: 36px;
    height: 36px;
  }
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .desktop-nav {
    display: none;
  }

  .burger-btn {
    display: flex;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .grid-3, .packages-grid, .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .posology-card {
    grid-template-columns: 1fr;
  }

  .stat-strip {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4, .matrix-grid, .packages-grid, .articles-grid, .cert-grid, .checklist-grid, .checkout-grid, .calc-grid, .anatomy-interactive-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 3.5rem 0;
  }

  .form-row-2 {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .trust-badges-bar {
    grid-template-columns: 1fr;
  }

  .thankyou-wrapper {
    padding: 1.5rem;
  }

  .order-timeline {
    flex-direction: column;
    gap: 1.5rem;
    align-items: flex-start;
  }

  .order-timeline::before {
    display: none;
  }

  .order-step {
    flex-direction: row;
  }
}