:root {
  --black: #050505;
  --white: #ffffff;
  --page: #f3f3f3;
  --text: #111111;
  --muted: #6f6f6f;
  --border: #d6d6d6;
  --accent: #8b5cf6;
  --success: #1f8f4d;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", sans-serif;
  background: var(--page);
  color: var(--text);
}

/* HEADER */
.site-header {
  background: var(--black);
  color: var(--white);
  padding: 22px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.logo {
  color: var(--white);
  text-decoration: none;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.04em;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav {
  display: flex;
  gap: 28px;
}

.nav a {
  color: var(--white);
  text-decoration: none;
  font-size: 0.95rem;
  opacity: 0.9;
}

.nav a:hover {
  opacity: 1;
}

.lang-switch {
  display: flex;
  gap: 8px;
}

.lang-btn {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.25);
  padding: 7px 10px;
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.8rem;
  transition: 0.2s ease;
}

.lang-btn.active,
.lang-btn:hover {
  background: var(--white);
  color: var(--black);
}

/* HERO */
.hero {
  background: linear-gradient(180deg, #050505 0%, #0a0a0a 100%);
  color: var(--white);
  padding: 90px 24px;
}

.hero-content {
  max-width: 920px;
  margin: 0 auto;
  text-align: center;
}

.hero h1 {
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  margin-bottom: 18px;
  line-height: 1;
}

.hero-subtitle {
  max-width: 760px;
  margin: 0 auto 28px;
  font-size: 1.1rem;
  color: #d8d8d8;
  line-height: 1.7;
}

.start-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 220px;
  padding: 16px 28px;
  border-radius: 14px;
  background: var(--white);
  color: var(--black);
  text-decoration: none;
  font-weight: 700;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.start-btn:hover {
  transform: translateY(-2px);
  opacity: 0.95;
}

/* PAGE SHELL */
.page-shell {
  max-width: 1400px;
  margin: 40px auto;
  padding: 0 20px;
}

.content-section {
  background: var(--white);
  border: 2px solid var(--border);
  border-radius: 28px;
  padding: 40px 36px;
  margin-bottom: 36px;
}

.soft-section {
  background: #f7f7f9;
}

.content-section h2 {
  font-family: "Space Grotesk", sans-serif;
  text-align: center;
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 30px;
}

/* REQUIREMENTS */
.requirements-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-bottom: 22px;
}

.requirement-card {
  border: 2px solid var(--border);
  border-radius: 18px;
  min-height: 170px;
  padding: 22px 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  text-align: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.requirement-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.08);
}

.requirement-card p {
  font-weight: 700;
  font-size: 1.15rem;
}

.requirement-icon {
  width: 58px;
  height: 58px;
  border-radius: 50%;
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.text-icon {
  font-size: 1.2rem;
}

.requirement-img {
  width: 56px;
  height: 56px;
  object-fit: contain;
}

.section-note {
  text-align: center;
  color: var(--muted);
  max-width: 650px;
  margin: 12px auto 0;
  line-height: 1.7;
}

/* LOOK FOR */
.look-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.look-item {
  padding: 8px 8px 0;
}

.look-item h3 {
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.4rem;
  margin-bottom: 12px;
}

.look-item p {
  color: var(--muted);
  line-height: 1.7;
  font-size: 1rem;
}

/* PROCESS */
.process-grid {
  display: grid;
  grid-template-columns: 1fr 60px 1fr 60px 1fr 60px 1fr;
  align-items: center;
  gap: 12px;
}

.process-item {
  border: 2px solid var(--border);
  border-radius: 18px;
  padding: 24px 18px;
  min-height: 220px;
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: 10px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.process-item:hover {
  transform: translateY(-6px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
}

.process-item:hover .process-number {
  transform: scale(1.05);
}

.process-number {
  width: 46px;
  height: 46px;
  margin: 0 auto;
  border-radius: 50%;
  background: var(--black);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  transition: transform 0.2s ease;
}

.process-item h3 {
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.2rem;
}

.process-item p {
  color: var(--muted);
  line-height: 1.7;
  font-size: 0.98rem;
}

.process-arrow {
  text-align: center;
  font-size: 2rem;
  color: #666;
  font-weight: 600;
}

/* FORM */
.application-form {
  max-width: 1100px;
  margin: 0 auto;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group.full-width {
  grid-column: 1 / -1;
}

.form-group label {
  font-weight: 600;
  font-size: 0.95rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  border: 2px solid var(--border);
  border-radius: 12px;
  font-family: "Inter", sans-serif;
  font-size: 0.98rem;
  background: var(--white);
  color: var(--text);
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: #bdbdbd;
}

.form-group textarea {
  resize: vertical;
}

.form-actions {
  margin-top: 10px;
  text-align: center;
}

.submit-btn {
  background: var(--black);
  color: var(--white);
  border: none;
  border-radius: 16px;
  padding: 18px 34px;
  font-weight: 700;
  font-size: 1.05rem;
  cursor: pointer;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.submit-btn:hover {
  transform: translateY(-2px);
  opacity: 0.95;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.12);
}

.form-message {
  margin-top: 18px;
  text-align: center;
  font-weight: 600;
}

.form-success {
  color: #16a34a;
}

.form-error {
  color: #dc2626;
}

/* FOOTER */
.site-footer {
  background: var(--page);
  padding: 0 20px 40px;
}

.footer-box {
  max-width: 1400px;
  margin: 0 auto;
  background: var(--white);
  border: 2px solid var(--border);
  border-radius: 28px;
  padding: 34px 24px;
  text-align: center;
}

.footer-box h2 {
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 20px;
}

.footer-email {
  display: inline-block;
  color: var(--text);
  text-decoration: none;
  border: 2px solid var(--border);
  border-radius: 12px;
  padding: 14px 18px;
  font-weight: 600;
  margin-bottom: 18px;
}

.footer-socials {
  display: flex;
  justify-content: center;
  gap: 18px;
  margin-bottom: 16px;
}

.footer-socials a {
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
}

.footer-copy {
  color: var(--muted);
  font-size: 0.95rem;
}

/* RESPONSIVE */
@media (max-width: 1100px) {
  .requirements-grid,
  .look-grid,
  .form-grid {
    grid-template-columns: 1fr 1fr;
  }

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

  .process-arrow {
    display: none;
  }
}

@media (max-width: 700px) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
  }

  .header-right {
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }

  .nav {
    flex-wrap: wrap;
    gap: 18px;
  }

  .requirements-grid,
  .look-grid,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .content-section,
  .footer-box {
    padding: 28px 18px;
  }
}
.look-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.look-item {
  padding: 8px 8px 0;
}

.look-item h3 {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.4rem;
  margin-bottom: 16px;
}

.look-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #7C5CFF;
  flex-shrink: 0;
}

.look-item p {
  color: var(--muted);
  line-height: 1.7;
  font-size: 1rem;
}

.selective-note {
  margin-top: 8px;
  margin-bottom: 16px;
  text-align: center;
  color: var(--muted);
  font-size: 0.96rem;
  line-height: 1.7;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

.accent {
  color: #7C5CFF;
  font-weight: 700;
}

.soft-section {
  background: #f7f7f9;
}

form.was-validated input:invalid,
form.was-validated select:invalid,
form.was-validated textarea:invalid {
  border-color: #dc2626;
}

/* Animation fade */

.fade-out {
  opacity: 0;
  transition: opacity 0.5s ease;
}

.fade-in {
  opacity: 1;
  transition: opacity 0.5s ease;
}

.hidden {
  display: none;
}

/* champs invalides */

.was-validated input:invalid,
.was-validated select:invalid,
.was-validated textarea:invalid {
  border: 2px solid #e5484d;
}

/* quand l'utilisateur corrige */

.was-validated input:valid,
.was-validated select:valid,
.was-validated textarea:valid {
  border: 2px solid #22a06b;
}

input:invalid:focus,
select:invalid:focus,
textarea:invalid:focus {
  outline: none;
  border-color: #e5484d;
  box-shadow: 0 0 0 2px rgba(229,72,77,0.2);
}