/* ============================================
   HPE Smart Choice Landing Page
   Mobile-first, accessible, performance-focused
   ============================================ */

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

:root {
  --color-hpe-green: #01A982;
  --color-hpe-green-hover: #00C389;
  --color-hpe-green-dark: #008C6B;
  --color-dark: #1A1A2E;
  --color-dark-soft: #2D2D44;
  --color-text: #333340;
  --color-text-light: #5A5A6E;
  --color-bg: #FAFAFA;
  --color-bg-alt: #F0F0F4;
  --color-white: #FFFFFF;
  --color-overlay: rgba(15, 15, 30, 0.75);

  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2.5rem;
  --spacing-xl: 4rem;
  --spacing-2xl: 6rem;

  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;

  --max-width: 1100px;
  --transition: 0.25s ease;
}

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

body {
  font-family: var(--font-main);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

/* --- UTILITY --- */
.highlight {
  color: var(--color-hpe-green);
}

/* --- NAVBAR --- */
.navbar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  padding: var(--spacing-sm) var(--spacing-md);
  background: rgba(240, 240, 244, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.navbar__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar__logo {
  height: 32px;
  width: auto;
  object-fit: contain;
}

.navbar__logo--hpe {
  height: 36px;
}

@media (min-width: 600px) {
  .navbar {
    padding: var(--spacing-md) var(--spacing-lg);
  }

  .navbar__logo--hpe {
    height: 42px;
  }
}

@media (min-width: 900px) {
  .navbar {
    padding: var(--spacing-md) var(--spacing-xl);
  }
}

/* --- BUTTONS --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-main);
  font-weight: 600;
  border: none;
  cursor: pointer;
  border-radius: var(--radius);
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  text-align: center;
  line-height: 1.4;
}

.btn--primary {
  background: var(--color-hpe-green);
  color: var(--color-white);
  box-shadow: 0 4px 20px rgba(1, 169, 130, 0.35);
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background: var(--color-hpe-green-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(1, 169, 130, 0.45);
}

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

.btn--large {
  padding: 1rem 2rem;
  font-size: 1.05rem;
}

/* --- HERO --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: var(--spacing-xl) var(--spacing-md);
  padding-top: 5rem;
  background: url('https://choyou.fr/_/hpe_smart_choice_serveurs/background.jpg') center center / cover no-repeat;
  overflow: hidden;
  text-align: left;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 10, 25, 0.45);
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 650px;
  background: rgba(10, 10, 25, 0.55);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.hero__badge {
  display: inline-block;
  background: rgba(1, 169, 130, 0.15);
  color: var(--color-hpe-green);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.4rem 1rem;
  border-radius: 50px;
  margin-bottom: var(--spacing-md);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.hero__title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  color: var(--color-white);
  line-height: 1.15;
  margin-bottom: var(--spacing-md);
  letter-spacing: -0.5px;
}

.hero__subtitle {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.6;
  margin-bottom: var(--spacing-lg);
  max-width: 550px;
}

/* --- SECTIONS COMMON --- */
.section {
  position: relative;
  padding: var(--spacing-2xl) var(--spacing-md);
}

.section__container {
  max-width: var(--max-width);
  margin: 0 auto;
}

.section__container--overlay {
  position: relative;
  z-index: 2;
}

.section__container--center {
  text-align: center;
}

.section__overlay {
  position: absolute;
  inset: 0;
  background: var(--color-overlay);
  z-index: 1;
}

.section__label {
  display: inline-block;
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-hpe-green);
  margin-bottom: var(--spacing-sm);
}

.section__label--light {
  color: var(--color-hpe-green);
}

.section__title {
  font-size: clamp(1.8rem, 4.5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--color-dark);
  margin-bottom: var(--spacing-md);
  letter-spacing: -0.3px;
}

.section__title--light {
  color: var(--color-white);
}

.section__text {
  font-size: 1.1rem;
  color: var(--color-text-light);
  max-width: 750px;
}

.section__text--light {
  color: rgba(255, 255, 255, 0.8);
}

.section__text--center {
  margin-left: auto;
  margin-right: auto;
  max-width: 650px;
}

.section__text p + p {
  margin-top: var(--spacing-sm);
}

.section__emphasis {
  font-weight: 700;
  color: var(--color-dark);
  font-size: 1.15rem;
  margin-top: var(--spacing-md);
  padding-left: var(--spacing-md);
  border-left: 3px solid var(--color-hpe-green);
}

.section__intro {
  font-size: 1.1rem;
  color: var(--color-text-light);
  max-width: 700px;
  margin-bottom: var(--spacing-xl);
}

.section__footnote {
  margin-top: var(--spacing-sm);
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.45);
}

/* --- ZONE 1 : DEFI --- */
.section--defi {
  background: #D8D8DE;
}

/* --- ZONE 2 : SOLUTION --- */
.section--solution {
  background: linear-gradient(135deg, #2A2A3D 0%, #353550 50%, #2D3A42 100%);
  overflow: hidden;
}

.section--solution .section__text {
  text-align: center;
  max-width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.solution-points {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
  justify-content: center;
  align-items: center;
}

.solution-point {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
}

.solution-point__icon {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(1, 169, 130, 0.12);
  border-radius: var(--radius-sm);
  color: var(--color-hpe-green);
}

.solution-point__icon svg {
  width: 28px;
  height: 28px;
}

.solution-point p {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.85);
  padding-top: 0.6rem;
}

/* Solution product image */
.solution__product {
  margin-top: var(--spacing-lg);
  text-align: center;
}

.solution__product-link {
  display: inline-block;
  position: relative;
  transition: transform var(--transition);
}

.solution__product-link:hover {
  transform: scale(1.02);
}

.solution__product-img {
  max-width: 480px;
  width: 100%;
  border-radius: var(--radius-lg);
  filter: drop-shadow(0 16px 48px rgba(0, 0, 0, 0.4));
}

.btn--product {
  margin-top: var(--spacing-md);
  padding: 0.8rem 2.5rem;
  font-size: 1rem;
}

/* --- ZONE 3 : AVANTAGES (CARDS) --- */
.section--avantages {
  background: #D0D0D8;
}

.cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  border: 1px solid rgba(0, 0, 0, 0.06);
  transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
}

.card__icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(1, 169, 130, 0.1);
  border-radius: var(--radius);
  color: var(--color-hpe-green);
  margin-bottom: var(--spacing-md);
}

.card__icon svg {
  width: 36px;
  height: 36px;
}

.card__title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: var(--spacing-xs);
}

.card__text {
  font-size: 1rem;
  color: var(--color-text-light);
  line-height: 1.65;
}

.card__text strong {
  color: var(--color-dark);
}

/* --- ZONE 4 : ACTION --- */
.section--action {
  background: linear-gradient(160deg, #2A2A3D 0%, #353550 50%, #2D3A42 100%);
  text-align: center;
}

.section--action .btn--cta {
  margin-top: var(--spacing-lg);
  padding: 1.2rem 2.5rem;
  font-size: 1.1rem;
}

/* --- FOOTER --- */
.footer {
  background: #2A2A3D;
  padding: var(--spacing-md);
  text-align: center;
}

.footer__container {
  max-width: var(--max-width);
  margin: 0 auto;
}

.footer p {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.35);
}

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

/* Tablet */
@media (min-width: 600px) {
  .cards {
    grid-template-columns: 1fr 1fr;
  }

  .section {
    padding: var(--spacing-2xl) var(--spacing-lg);
  }
}

/* Desktop */
@media (min-width: 900px) {
  .hero {
    padding: var(--spacing-2xl) var(--spacing-xl);
    padding-top: 6rem;
  }

  .hero__content {
    max-width: 650px;
    padding: var(--spacing-xl);
  }

  .section {
    padding: 7rem var(--spacing-xl);
  }

  .cards {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
  }

  .solution-points {
    flex-direction: row;
    gap: var(--spacing-lg);
  }

  .solution-point {
    flex: 1;
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}

/* --- ANIMATIONS (reduced motion safe) --- */
@media (prefers-reduced-motion: no-preference) {
  .section__container,
  .card {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
  }

  .section__container.visible,
  .card.visible {
    opacity: 1;
    transform: translateY(0);
  }

  .card:nth-child(2) { transition-delay: 0.1s; }
  .card:nth-child(3) { transition-delay: 0.2s; }
  .card:nth-child(4) { transition-delay: 0.3s; }
}

/* Fallback: always visible if reduced motion preferred */
@media (prefers-reduced-motion: reduce) {
  .section__container,
  .card {
    opacity: 1;
    transform: none;
  }
}