/* ============================================================
   ENERGY 01 – Landing Page
   Swiss Riviera Medical Center SA
   Palette : blanc / gris clair / #CC0000 accent
   Typographie : Montserrat (titres) + Source Sans 3 (corps)
   ============================================================ */

/* ===================== CUSTOM PROPERTIES ===================== */
:root {
  /* Couleurs principales */
  --color-white: #FFFFFF;
  --color-bg-alt: #F5F5F5;
  --color-text-primary: #1A1A1A;
  --color-text-secondary: #4D4D4D;
  --color-gray-logo: #676767;

  /* Accent – Rouge SRMC */
  --color-accent: #CC0000;
  --color-accent-hover: #A30000;
  --color-accent-light: #E4312B;

  /* Utilitaires */
  --color-border: #E0E0E0;
  --color-shadow: rgba(0, 0, 0, 0.08);
  --color-shadow-md: rgba(0, 0, 0, 0.12);
  --color-dark: #1A1A1A;

  /* Typographie */
  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Source Sans 3', sans-serif;

  /* Espacements */
  --section-padding: clamp(64px, 8vw, 120px);
  --container-max: 1200px;
  --container-padding: clamp(24px, 5vw, 80px);

  /* Transitions */
  --transition-base: 0.25s ease;
  --transition-slow: 0.4s ease;
}

/* ===================== RESET & BASE ===================== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: clamp(1rem, 1.1vw, 1.125rem);
  line-height: 1.7;
  color: var(--color-text-primary);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

address {
  font-style: normal;
}

/* ===================== CONTAINER ===================== */
.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

/* ===================== BUTTONS ===================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 14px 36px;
  border-radius: 3px;
  transition: background-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-white);
  box-shadow: 0 4px 16px rgba(204, 0, 0, 0.25);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background-color: var(--color-accent-hover);
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 6px 24px rgba(204, 0, 0, 0.35);
}

.btn-primary:active {
  transform: translateY(0) scale(1);
}

.btn-light {
  background-color: var(--color-accent);
  color: var(--color-white);
}

.btn-nav {
  background-color: var(--color-accent);
  color: var(--color-white);
  padding: 10px 24px;
  font-size: 0.8rem;
}

.btn-nav:hover,
.btn-nav:focus-visible {
  background-color: var(--color-accent-hover);
}

/* ===================== FOCUS VISIBLE ===================== */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

/* ===================== FADE-IN ANIMATIONS ===================== */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-delay {
  transition-delay: 0.18s;
}

/* ===================== SECTION COMMONS ===================== */
.section-alt {
  background-color: var(--color-bg-alt);
}

.section-header {
  text-align: center;
  margin-bottom: clamp(40px, 5vw, 64px);
}

.section-header-left {
  text-align: left;
}

.section-header-sm {
  margin-bottom: clamp(24px, 3vw, 40px);
}

.section-label {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

h2 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  line-height: 1.2;
  letter-spacing: 0.01em;
  color: var(--color-text-primary);
}

.section-intro {
  font-weight: 400;
  font-size: clamp(1rem, 1.2vw, 1.125rem);
  color: var(--color-text-secondary);
  max-width: 700px;
  margin-inline: auto;
  margin-top: 16px;
  line-height: 1.8;
}

/* ===================== HEADER / NAV ===================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 14px;
}

.logo {
  display: flex;
  align-items: center;
}

.logo-svg {
  height: 36px;
  width: auto;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: clamp(16px, 2.5vw, 36px);
}

.main-nav a:not(.btn) {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  transition: color var(--transition-base);
}

.main-nav a:not(.btn):hover {
  color: var(--color-text-primary);
}

/* ===================== SECTION 1 – HERO ===================== */
.section-hero {
  padding-block: clamp(64px, 9vw, 140px);
  background-color: var(--color-white);
  overflow: hidden;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 20px;
}

.hero-label {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

.hero-product-name {
  display: block;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-primary);
  margin-bottom: -8px;
}

.hero-product-name em {
  font-style: italic;
  color: var(--color-accent);
}

.hero-tagline {
  display: block;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(2rem, 3.5vw, 3.25rem);
  line-height: 1.15;
  letter-spacing: 0.01em;
  color: var(--color-text-primary);
  margin-top: 6px;
}

.hero-ingredients {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.hero-ingredients-intro {
  font-weight: 400;
  font-size: clamp(1rem, 1.2vw, 1.125rem);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.hero-ingredients-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.hero-ingredients-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-text-primary);
  letter-spacing: 0.02em;
}

.hero-price-block {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-top: 4px;
}

.hero-price {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(1.75rem, 2.5vw, 2.25rem);
  color: var(--color-text-primary);
  letter-spacing: -0.01em;
}

.hero-unit {
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--color-text-secondary);
}

.hero-swiss {
  display: flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  margin-top: 4px;
}

.hero-image {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-image img {
  max-height: 540px;
  width: auto;
  filter: drop-shadow(0 24px 48px rgba(0, 0, 0, 0.14));
  margin-inline: auto;
}

/* ===================== SECTION 2 – BÉNÉFICES ===================== */
.section-benefits {
  padding-block: var(--section-padding);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(20px, 3vw, 32px);
}

.benefit-card {
  background-color: var(--color-white);
  padding: clamp(24px, 3vw, 36px);
  border-radius: 4px;
  box-shadow: 0 2px 12px var(--color-shadow);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.benefit-card:hover {
  box-shadow: 0 8px 32px var(--color-shadow-md);
  transform: translateY(-3px);
}

.benefit-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.benefit-card h3 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.02em;
  color: var(--color-text-primary);
}

.benefit-card p {
  font-weight: 400;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ===================== SECTION 3 – COMPOSITION ===================== */
.section-composition {
  padding-block: var(--section-padding);
}

.composition-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: center;
}

.composition-image img {
  max-height: 500px;
  width: auto;
  margin-inline: auto;
  filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.12));
}

.composition-subtitle {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  margin-bottom: 20px;
}

/* Nutrition Table */
.nutrition-table {
  border: 1px solid var(--color-border);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 28px;
}

.nutrition-header {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 16px;
  padding: 12px 20px;
  background-color: var(--color-text-primary);
  color: var(--color-white);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nutrition-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 16px;
  padding: 14px 20px;
  border-top: 1px solid var(--color-border);
  align-items: center;
  transition: background-color var(--transition-base);
}

.nutrition-row:hover {
  background-color: var(--color-bg-alt);
}

.nutrition-row strong {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9rem;
}

.nutrition-row em {
  font-style: normal;
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  font-weight: 400;
  display: block;
}

.nutrition-value {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9rem;
  white-space: nowrap;
}

.nutrition-pct {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--color-accent);
  min-width: 40px;
  text-align: right;
}

.nutrition-note {
  padding: 10px 20px;
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--color-text-secondary);
  background-color: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
}

/* Badges */
.badges-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  font-family: var(--font-heading);
  letter-spacing: 0.03em;
  color: var(--color-text-primary);
  background-color: var(--color-bg-alt);
  white-space: nowrap;
}

/* ===================== SECTION 4 – ACTIFS ===================== */
.section-ingredients {
  padding-block: var(--section-padding);
}

.ingredients-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(20px, 3vw, 32px);
}

.ingredient-card {
  background-color: var(--color-white);
  padding: clamp(24px, 3vw, 40px);
  border-radius: 4px;
  box-shadow: 0 2px 12px var(--color-shadow);
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.ingredient-card:hover {
  box-shadow: 0 8px 32px var(--color-shadow-md);
  transform: translateY(-3px);
}

.ingredient-header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.ingredient-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 6px;
}

.ingredient-header h3 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.02em;
  line-height: 1.2;
}

.ingredient-tags {
  font-size: 0.78rem;
  font-weight: 600;
  font-family: var(--font-heading);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-top: 4px;
}

.ingredient-card > p {
  font-weight: 400;
  color: var(--color-text-secondary);
  line-height: 1.7;
  font-size: 0.95rem;
}

.ingredient-dose {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  padding-top: 12px;
  border-top: 1px solid var(--color-border);
  margin-top: auto;
}

/* ===================== SECTION 5 – UTILISATION ===================== */
.section-usage {
  padding-block: var(--section-padding);
}

.usage-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.usage-left-col {
  display: flex;
  flex-direction: column;
  gap: clamp(24px, 3vw, 32px);
}

.usage-main {
  display: flex;
  align-items: center;
  justify-content: center;
}

.usage-daily {
  display: flex;
  align-items: center;
  gap: 20px;
  background-color: var(--color-bg-alt);
  padding: 32px 28px;
  border-radius: 4px;
  border-left: 3px solid var(--color-accent);
  width: 100%;
}

.usage-main-text {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--color-text-primary);
  line-height: 1.2;
}

.usage-sub {
  font-weight: 400;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-top: 4px;
}

.usage-options {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.usage-option {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
}

.usage-option:last-child {
  border-bottom: none;
}

.usage-option-icon {
  flex-shrink: 0;
  margin-top: 2px;
}

.usage-option-label {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  color: var(--color-text-primary);
  margin-bottom: 4px;
}

.usage-option-text {
  font-weight: 400;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.usage-cycle-inner {
  background-color: var(--color-bg-alt);
  padding: 32px 28px;
  border-radius: 4px;
}

.usage-cycle-inner h3 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}

.cycle-steps {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.cycle-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 14px 18px;
  border-radius: 4px;
  flex: 1;
  min-width: 80px;
}

.cycle-active {
  background-color: var(--color-accent);
  color: var(--color-white);
}

.cycle-active .cycle-num {
  color: var(--color-white);
}

.cycle-pause {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
}

.cycle-num {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
}

.cycle-label {
  font-size: 0.72rem;
  font-weight: 600;
  margin-top: 3px;
  text-align: center;
}

.cycle-label-pause {
  color: var(--color-text-primary);
}

.cycle-arrow {
  font-size: 1.2rem;
  color: var(--color-text-secondary);
  flex-shrink: 0;
}

.cycle-note {
  font-weight: 400;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ===================== SECTION 6 – PRÉCAUTIONS ===================== */
.section-precautions {
  padding-block: var(--section-padding);
}

.section-precautions h2 {
  font-size: clamp(1.1rem, 1.5vw, 1.35rem);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

.precautions-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px 40px;
  margin-bottom: 28px;
}

.precautions-list li {
  font-weight: 400;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  padding-left: 16px;
  position: relative;
}

.precautions-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background-color: var(--color-accent);
}

.precautions-legal {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--color-text-secondary);
  line-height: 1.6;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
  max-width: 760px;
}

/* ===================== FOOTER ===================== */
.site-footer {
  background-color: var(--color-dark);
  color: var(--color-white);
  padding-block: clamp(64px, 8vw, 100px);
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: clamp(48px, 6vw, 80px);
  align-items: center;
}

.footer-cta {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-eyebrow {
  font-weight: 400;
  font-style: italic;
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.75);
}

.footer-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  color: var(--color-white);
  letter-spacing: 0.02em;
}

.footer-price {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 2rem;
  color: var(--color-white);
}

.footer-email {
  display: inline-block;
  font-weight: 400;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.75);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition-base);
}

.footer-email:hover {
  color: var(--color-white);
}

.footer-info {
  display: flex;
  flex-direction: column;
  gap: 20px;
  align-items: flex-start;
}

.footer-logo svg {
  height: 36px;
  width: auto;
}

.footer-distributor-label {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: -12px;
}

.footer-address {
  font-weight: 400;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.7;
}

.footer-swiss {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.7);
}

/* ===================== RESPONSIVE ===================== */

/* 1024px */
@media (max-width: 1024px) {
  .benefits-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* 768px (tablette) */
@media (max-width: 768px) {
  .main-nav a:not(.btn):not(.btn-nav) {
    display: none;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 48px;
    text-align: center;
  }

  .hero-content {
    align-items: center;
    order: 2;
  }

  .hero-image {
    order: 1;
  }

  .hero-image img {
    max-height: 380px;
  }

  .composition-inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .composition-image {
    order: 2;
  }

  .composition-content {
    order: 1;
  }

  .section-header-left {
    text-align: center;
  }

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

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

  .usage-left-col {
    gap: 24px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .precautions-list {
    grid-template-columns: 1fr;
  }
}

/* 375px (mobile) */
@media (max-width: 480px) {
  :root {
    --container-padding: 20px;
  }

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

  .hero-tagline {
    font-size: 1.75rem;
  }

  .nutrition-header,
  .nutrition-row {
    grid-template-columns: 1fr auto auto;
    gap: 10px;
    padding: 10px 14px;
    font-size: 0.78rem;
  }

  .badges-list {
    gap: 6px;
  }

  .badge {
    font-size: 0.72rem;
    padding: 5px 10px;
  }

  .cycle-steps {
    flex-direction: column;
    align-items: stretch;
  }

  .cycle-arrow {
    transform: rotate(90deg);
    align-self: center;
  }
}

/* 320px */
@media (max-width: 340px) {
  :root {
    --container-padding: 16px;
  }

  .main-nav {
    gap: 10px;
  }
}