/* Vigelis Pulse – Landing page TPE / PME, FR/EN/DE */

:root {
  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --color-bg: #050814;
  --color-surface: #0c101f;
  --color-surface-alt: #101526;
  --color-border: #232a3d;

  --color-text: #f4f5f9;
  --color-text-muted: #a3acc6;
  --color-text-soft: #6d7692;

  --color-primary: #31c3d9;
  --color-primary-soft: rgba(49, 195, 217, 0.1);
  --color-primary-strong: #11a9c2;

  --color-success: #2bc073;
  --color-error: #ff6b6b;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;
  --radius-pill: 999px;

  --shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.55);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;

  --max-width: 1040px;
}

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

html {
  font-size: 16px;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  color: var(--color-text);
  background:
    radial-gradient(circle at top left, #18223b 0, transparent 50%),
    radial-gradient(circle at bottom right, #0e2935 0, transparent 60%),
    radial-gradient(circle at top right, #2a1242 0, transparent 60%),
    #050814;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover,
a:focus-visible {
  text-decoration: underline;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* HEADER */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: linear-gradient(90deg, rgba(5, 8, 20, 0.96), rgba(5, 8, 20, 0.96));
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(35, 42, 61, 0.8);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-3) 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: inherit;
  text-decoration: none;
}

.brand-mark {
  width: 48px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}

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

.brand-name {
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 0.8rem;
}

.brand-tagline {
  font-size: 0.8rem;
  color: var(--color-text-soft);
}

.main-nav {
  display: flex;
  gap: var(--space-4);
  align-items: center;
  font-size: 0.9rem;
}

.main-nav a {
  color: var(--color-text-soft);
  padding: var(--space-1) 0;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  color: var(--color-text);
  text-decoration: none;
}

.nav-cta {
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
  border: 1px solid rgba(49, 195, 217, 0.35);
  color: var(--color-primary);
  background: linear-gradient(135deg, rgba(49, 195, 217, 0.08), rgba(49, 195, 217, 0.02));
}

.nav-cta:hover,
.nav-cta:focus-visible {
  background: linear-gradient(135deg, rgba(49, 195, 217, 0.18), rgba(49, 195, 217, 0.05));
}

.lang-switcher {
  display: flex;
  align-items: center;
}

#language-select {
  background: #050814;
  color: var(--color-text-soft);
  border-radius: var(--radius-pill);
  border: 1px solid rgba(49, 195, 217, 0.4);
  padding: 0.25rem 0.7rem;
  font-size: 0.82rem;
}

#language-select:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* SECTIONS */

.section {
  padding: var(--space-12) 0;
}

.section-alt {
  background: radial-gradient(circle at top left, rgba(49, 195, 217, 0.04) 0, transparent 55%),
              radial-gradient(circle at bottom right, rgba(109, 118, 146, 0.25) 0, transparent 60%),
              #050814;
}

h1,
h2,
h3 {
  margin: 0 0 var(--space-3);
  line-height: 1.2;
}

h1 {
  font-size: clamp(2.1rem, 3vw, 2.7rem);
  letter-spacing: -0.03em;
}

h2 {
  font-size: 1.5rem;
}

h3 {
  font-size: 1.1rem;
}

p {
  margin: 0 0 var(--space-3);
  line-height: 1.7;
}

.small {
  font-size: 0.85rem;
  color: var(--color-text-soft);
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  color: var(--color-text-soft);
  margin-bottom: var(--space-2);
}

/* HERO */

.hero {
  padding-top: var(--space-16);
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 2.5fr);
  gap: var(--space-8);
  align-items: flex-start;
}

.hero-content {
  max-width: 36rem;
}

.hero-lead {
  font-size: 1.02rem;
  color: var(--color-text-muted);
}

.hero-bullets {
  margin: 0 0 var(--space-4);
  padding-left: 1.2rem;
  color: var(--color-text-soft);
  font-size: 0.95rem;
}

.hero-bullets li + li {
  margin-top: 0.25rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
}

.hero-panel {
  background: radial-gradient(circle at top left, rgba(49, 195, 217, 0.22) 0, transparent 55%),
              #0b0f1e;
  border-radius: 24px;
  padding: var(--space-4);
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(49, 195, 217, 0.3);
}

.hero-panel h2 {
  font-size: 1.05rem;
  margin-bottom: var(--space-3);
}

.panel-label {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.7rem;
  color: rgba(244, 245, 249, 0.7);
}

/* LISTES */

.check-list,
.bullet-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.check-list li,
.bullet-list li {
  position: relative;
  padding-left: 1.4rem;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.check-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.45rem;
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  box-shadow: 0 0 0 2px rgba(49, 195, 217, 0.3);
  background: radial-gradient(circle at 30% 30%, #ffffff, #31c3d9);
}

.bullet-list li::before {
  content: '•';
  position: absolute;
  left: 0.15rem;
  top: 0.1rem;
  color: var(--color-primary);
}

.check-list li + li,
.bullet-list li + li {
  margin-top: 0.4rem;
}

/* BOUTONS */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  border-radius: var(--radius-pill);
  padding: 0.7rem 1.6rem;
  font-size: 0.92rem;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s ease, color 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease, transform 0.08s ease;
}

.btn-primary {
  background: linear-gradient(120deg, var(--color-primary), var(--color-primary-strong));
  color: #02040a;
  box-shadow: 0 14px 35px rgba(5, 182, 205, 0.4);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 18px 40px rgba(5, 182, 205, 0.55);
}

.btn-ghost {
  background: rgba(15, 20, 40, 0.9);
  color: var(--color-text-muted);
  border-color: rgba(109, 118, 146, 0.6);
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  color: var(--color-text);
  border-color: rgba(49, 195, 217, 0.7);
}

/* GRILLES & CARTES */

.grid-two {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: var(--space-8);
  align-items: flex-start;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.card {
  background: linear-gradient(145deg, rgba(20, 26, 50, 0.98), rgba(10, 13, 29, 0.98));
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  border: 1px solid rgba(35, 42, 61, 0.9);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.55);
  font-size: 0.95rem;
}

.card h3 {
  font-size: 1.02rem;
  margin-bottom: var(--space-2);
}

/* ETAPES */

.steps-list {
  list-style: none;
  padding: 0;
  margin: 0;
  counter-reset: step;
}

.steps-list li {
  counter-increment: step;
  margin-bottom: var(--space-3);
  padding-left: 2.1rem;
  position: relative;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.steps-list li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0.1rem;
  width: 1.4rem;
  height: 1.4rem;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 30%, #ffffff, #31c3d9);
  color: #050814;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 600;
}

/* FORM */

.form-section {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 1.65fr);
  gap: var(--space-8);
  align-items: flex-start;
}

.interest-form {
  background: radial-gradient(circle at top left, rgba(49, 195, 217, 0.22) 0, transparent 55%),
              #050814;
  border-radius: 20px;
  padding: var(--space-4);
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(49, 195, 217, 0.4);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
}

.form-field {
  margin-bottom: var(--space-4);
}

.form-field label {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 0.35rem;
  color: var(--color-text);
}

.required {
  color: var(--color-error);
  margin-left: 0.1rem;
}

input[type="text"],
input[type="email"],
textarea,
select {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border-radius: 10px;
  border: 1px solid rgba(77, 87, 120, 0.9);
  font: inherit;
  color: inherit;
  background-color: rgba(7, 10, 23, 0.98);
  transition: border-color 0.12s ease, box-shadow 0.12s ease, background-color 0.12s ease;
}

input[type="text"]:focus-visible,
input[type="email"]:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px rgba(49, 195, 217, 0.5);
}

textarea {
  resize: vertical;
  min-height: 120px;
}

.checkbox-field {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.9rem;
}

.checkbox-field input[type="checkbox"] {
  margin-top: 0.2rem;
}

.form-actions {
  margin-top: var(--space-3);
}

.form-actions .btn {
  margin-bottom: var(--space-2);
}

.form-status {
  margin-top: var(--space-3);
  font-size: 0.9rem;
}

.form-status--success {
  color: var(--color-success);
}

.form-status--error {
  color: var(--color-error);
}

.hp-wrapper {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* FOOTER */

.site-footer {
  border-top: 1px solid rgba(35, 42, 61, 0.9);
  padding: var(--space-6) 0 var(--space-8);
  background: #050814;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

/* RESPONSIVE */

@media (max-width: 1040px) {
  .hero-inner,
  .grid-two,
  .form-section {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-inner {
    gap: var(--space-6);
  }

  .cards-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .header-inner {
    flex-wrap: wrap;
    align-items: flex-start;
  }

  .main-nav {
    font-size: 0.82rem;
    gap: var(--space-3);
  }

  .section {
    padding: var(--space-10) 0;
  }

  .hero {
    padding-top: var(--space-10);
  }

  .cards-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .form-row {
    grid-template-columns: minmax(0, 1fr);
  }
}