/* ============================================
   MINA ONE – STYLES HAUTE GAMME
   Site : www.minaonepro.com
   Version : 1.0 – Production Ready
   ============================================ */

/* ===== VARIABLES & RESET ===== */
:root {
  /* Couleurs principales */
  --color-primary: #1a3a5c;
  --color-primary-dark: #0f2a44;
  --color-secondary: #c9a961;
  --color-secondary-dark: #b89955;
  --color-text: #2c2c2c;
  --color-text-light: #555555;
  --color-light: #f8f9fa;
  --color-white: #ffffff;
  --color-error: #dc3545;
  --color-success: #28a745;
  
  /* Ombres & effets */
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Typographie */
  --font-heading: 'Playfair Display', serif;
  --font-body: 'Inter', sans-serif;
  
  /* Espacements */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 5rem;
  
  /* Bordures */
  --border-radius: 8px;
  --border-radius-lg: 16px;
  --border-radius-full: 50px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  line-height: 1.7;
  background: var(--color-white);
  overflow-x: hidden;
}

/* Typographie */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-primary);
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: var(--spacing-sm);
}

h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }

p {
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-light);
}

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

a:hover {
  color: var(--color-secondary);
}

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

blockquote {
  font-family: var(--font-heading);
  font-style: italic;
  color: var(--color-primary);
  border-left: 3px solid var(--color-secondary);
  padding-left: var(--spacing-sm);
  margin: var(--spacing-md) 0;
}

cite {
  display: block;
  margin-top: var(--spacing-xs);
  font-size: 0.95rem;
  font-style: normal;
  color: var(--color-text-light);
}

/* Utilitaires */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

.section {
  padding: var(--spacing-xl) 0;
}

.section:nth-child(even) {
  background: var(--color-light);
}

/* Skip link pour accessibilité */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-secondary);
  color: var(--color-primary);
  padding: var(--spacing-xs) var(--spacing-sm);
  z-index: 1000;
  transition: top 0.3s;
}

.skip-link:focus {
  top: 0;
}

/* ===== HEADER ===== */
.header {
  background: var(--color-white);
  padding: var(--spacing-sm) 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.header.scrolled {
  padding: var(--spacing-xs) 0;
  background: rgba(255,255,255,0.98);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.logo h1 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 0;
  color: var(--color-primary);
}

.baseline {
  font-size: 0.9rem;
  color: var(--color-text-light);
  font-style: italic;
  margin: 0;
}

/* Navigation */
.nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.nav ul {
  display: flex;
  list-style: none;
  gap: var(--spacing-sm);
  margin: 0;
  padding: 0;
}

.nav a {
  font-weight: 500;
  font-size: 0.95rem;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.nav a:hover,
.nav a:focus {
  background: var(--color-light);
  color: var(--color-secondary);
  outline: none;
}

/* Language Toggle Button */
.lang-toggle {
  background: var(--color-secondary);
  color: var(--color-primary);
  border: none;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius-full);
  font-weight: 600;
  font-size: 0.9rem;
  font-family: var(--font-body);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 0.3rem;
  white-space: nowrap;
}

.lang-toggle:hover,
.lang-toggle:focus {
  background: var(--color-secondary-dark);
  transform: translateY(-2px);
  outline: none;
}

.lang-toggle:active {
  transform: translateY(0);
}

/* ===== HERO SECTION ===== */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
  padding: calc(var(--spacing-xl) + 2rem) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 30% 20%, rgba(201,169,97,0.15) 0%, transparent 50%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
}

.hero h2 {
  color: var(--color-white);
  margin-bottom: var(--spacing-md);
  font-weight: 700;
}

.hero p {
  font-size: 1.2rem;
  color: rgba(255,255,255,0.95);
  max-width: 800px;
  margin: 0 auto var(--spacing-md);
}

.hero .signature {
  font-size: 1.3rem;
  margin: var(--spacing-lg) auto;
  max-width: 700px;
  border-left-color: var(--color-secondary);
  color: var(--color-white);
}

.hero .signature cite {
  color: rgba(255,255,255,0.9);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.9rem 2.2rem;
  border-radius: var(--border-radius-full);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  gap: 0.5rem;
}

.btn-primary {
  background: var(--color-secondary);
  color: var(--color-primary);
  box-shadow: var(--shadow);
}

.btn-primary:hover,
.btn-primary:focus {
  background: var(--color-secondary-dark);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  outline: none;
}

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

.btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none !important;
}

/* ===== ABOUT SECTION ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--spacing-lg);
  align-items: start;
}

.about-photo {
  position: relative;
}

.about-photo img {
  width: 100%;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
}

.about-photo img:hover {
  transform: scale(1.02);
}

.photo-credit {
  font-size: 0.85rem;
  color: var(--color-text-light);
  text-align: center;
  margin-top: var(--spacing-xs);
  font-style: italic;
}

.origin-name {
  margin-top: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--color-light);
  border-left: 4px solid var(--color-secondary);
  border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

.origin-name h4 {
  color: var(--color-secondary);
  margin-bottom: var(--spacing-xs);
}

/* ===== WHY SECTION ===== */
.why {
  text-align: center;
}

.why p {
  max-width: 800px;
  margin: 0 auto var(--spacing-sm);
}

.why p:last-child {
  margin-bottom: 0;
}

/* ===== METHOD SECTION ===== */
.method-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
}

.step {
  text-align: center;
  padding: var(--spacing-md);
  background: var(--color-white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.step:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 55px;
  height: 55px;
  background: var(--color-secondary);
  color: var(--color-primary);
  border-radius: 50%;
  font-weight: 700;
  font-size: 1.4rem;
  margin-bottom: var(--spacing-sm);
  transition: var(--transition);
}

.step:hover .step-number {
  transform: scale(1.1);
}

.step h4 {
  margin-bottom: var(--spacing-xs);
  color: var(--color-primary);
}

/* ===== FORMATIONS SECTION ===== */
.formation-list,
.target-audience ul,
.sectors ul {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-sm);
  margin: var(--spacing-md) 0;
  padding: 0;
}

.formation-list li,
.target-audience li,
.sectors li {
  padding: 0.9rem 1.3rem;
  background: var(--color-white);
  border-radius: var(--border-radius);
  border-left: 3px solid var(--color-secondary);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.formation-list li:hover,
.target-audience li:hover,
.sectors li:hover {
  transform: translateX(5px);
  box-shadow: var(--shadow);
  border-left-color: var(--color-primary);
}

.target-audience,
.sectors {
  margin-top: var(--spacing-lg);
}

.target-audience h4,
.sectors h4 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

/* ===== VALUES SECTION ===== */
.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--spacing-md);
}

.value-item {
  text-align: center;
  padding: var(--spacing-md);
  background: var(--color-white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.value-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.value-item h4 {
  color: var(--color-secondary);
  margin-bottom: var(--spacing-xs);
}

/* ===== PEDAGOGY SECTION ===== */
.pedagogy-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
}

.peda-col h4 {
  margin: var(--spacing-md) 0 var(--spacing-sm);
  color: var(--color-primary);
}

.peda-col ul {
  list-style: none;
  padding-left: 0;
}

.peda-col li {
  padding: 0.4rem 0 0.4rem 1.5rem;
  position: relative;
  color: var(--color-text-light);
}

.peda-col li::before {
  content: '•';
  color: var(--color-secondary);
  font-weight: bold;
  position: absolute;
  left: 0;
  font-size: 1.3rem;
  line-height: 1;
}

/* ===== QUALITY SECTION ===== */
.quality {
  text-align: center;
}

.quality p {
  max-width: 800px;
  margin: 0 auto var(--spacing-sm);
}

/* ===== TESTIMONIALS SECTION ===== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-md);
}

.testimonial {
  background: var(--color-white);
  padding: var(--spacing-md);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow);
  border-left: 4px solid var(--color-secondary);
  transition: var(--transition);
}

.testimonial:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.testimonial p {
  font-style: italic;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

.testimonial cite {
  font-weight: 600;
  color: var(--color-primary);
  font-style: normal;
}

/* ===== CONCLUSION SECTION ===== */
.conclusion {
  background: var(--color-primary);
  color: var(--color-white);
  text-align: center;
}

.conclusion-quote {
  font-size: clamp(1.3rem, 3vw, 1.6rem);
  max-width: 800px;
  margin: 0 auto;
  border-left-color: var(--color-secondary);
  color: var(--color-white);
}

.conclusion-quote cite {
  color: rgba(255,255,255,0.9);
}

/* ===== FOOTER ===== */
.footer {
  background: #111;
  color: #ddd;
  padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

.footer h4 {
  color: var(--color-secondary);
  margin-bottom: var(--spacing-sm);
  font-size: 1.3rem;
}

.footer a {
  color: var(--color-secondary);
  transition: var(--transition);
}

.footer a:hover,
.footer a:focus {
  color: var(--color-white);
  outline: none;
}

.footer p {
  color: #bbb;
  margin: 0.4rem 0;
  font-size: 0.95rem;
}

.footer-legal {
  font-size: 0.9rem;
}

.legal-note {
  margin-top: var(--spacing-sm) !important;
  font-size: 0.85rem;
  color: #888 !important;
}

/* ===== CONTACT FORM ===== */
.footer-contact-form {
  grid-column: 1 / -1;
  background: var(--color-white);
  padding: var(--spacing-md);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  margin-bottom: var(--spacing-md);
}

.footer-contact-form h4 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
}

.contact-form .form-group {
  margin-bottom: var(--spacing-sm);
}

.contact-form label {
  display: block;
  margin-bottom: 0.4rem;
  font-weight: 500;
  color: var(--color-primary);
  font-size: 0.95rem;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.9rem 1.2rem;
  border: 2px solid #e0e0e0;
  border-radius: var(--border-radius);
  font-family: inherit;
  font-size: 1rem;
  transition: var(--transition);
  background: var(--color-light);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--color-secondary);
  background: var(--color-white);
  box-shadow: 0 0 0 4px rgba(201, 169, 97, 0.2);
}

.contact-form input:invalid:not(:placeholder-shown) {
  border-color: var(--color-error);
}

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

.form-note {
  font-size: 0.85rem;
  color: #666;
  margin-top: var(--spacing-sm);
  font-style: italic;
}

.form-success {
  display: none;
  padding: var(--spacing-sm);
  background: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
  border-radius: var(--border-radius);
  margin-top: var(--spacing-sm);
  text-align: center;
  font-weight: 500;
}

.form-success.show {
  display: block;
  animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Social Links */
.social-links {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: 50%;
  font-weight: 600;
  font-size: 0.9rem;
  transition: var(--transition);
}

.social-links a:hover,
.social-links a:focus {
  background: var(--color-secondary);
  color: var(--color-primary);
  transform: translateY(-3px);
  outline: none;
}

/* ===== SCROLL ANIMATIONS ===== */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
  will-change: opacity, transform;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Fade-in elements */
.fade-in {
  transition-delay: 0s;
}

/* Slide-up elements */
.slide-up {
  transition-delay: 0s;
}

/* Staggered delays for lists and grids */
.method-steps .step:nth-child(1) { transition-delay: 0.1s; }
.method-steps .step:nth-child(2) { transition-delay: 0.2s; }
.method-steps .step:nth-child(3) { transition-delay: 0.3s; }

.values-grid .value-item:nth-child(1) { transition-delay: 0.1s; }
.values-grid .value-item:nth-child(2) { transition-delay: 0.2s; }
.values-grid .value-item:nth-child(3) { transition-delay: 0.3s; }
.values-grid .value-item:nth-child(4) { transition-delay: 0.4s; }

.testimonials-grid .testimonial:nth-child(1) { transition-delay: 0.1s; }
.testimonials-grid .testimonial:nth-child(2) { transition-delay: 0.3s; }

.formation-list li:nth-child(1) { transition-delay: 0.05s; }
.formation-list li:nth-child(2) { transition-delay: 0.1s; }
.formation-list li:nth-child(3) { transition-delay: 0.15s; }
.formation-list li:nth-child(4) { transition-delay: 0.2s; }
.formation-list li:nth-child(5) { transition-delay: 0.25s; }
.formation-list li:nth-child(6) { transition-delay: 0.3s; }
.formation-list li:nth-child(7) { transition-delay: 0.35s; }
.formation-list li:nth-child(8) { transition-delay: 0.4s; }

/* ===== LANGUAGE SWITCHER LOGIC (CSS) ===== */
[data-en], [data-en-inline] { display: none; }
body.lang-en [data-fr], body.lang-en [data-fr-inline] { display: none; }
body.lang-en [data-en] { display: block; }
body.lang-en [data-en-inline] { display: inline; }
[data-fr-inline] { display: inline; }
body.lang-en [data-fr-inline] { display: none; }

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
  .pedagogy-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .about-photo {
    max-width: 400px;
    margin: 0 auto;
  }
}

@media (max-width: 768px) {
  :root {
    --spacing-xl: 4rem;
  }
  
  .header-content {
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-sm);
  }
  
  .nav {
    flex-direction: column;
    width: 100%;
  }
  
  .nav ul {
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
  }
  
  .nav a {
    font-size: 0.9rem;
    padding: 0.4rem 0.8rem;
  }
  
  .lang-toggle {
    width: 100%;
    justify-content: center;
  }
  
  .hero {
    padding: calc(var(--spacing-xl) + 1rem) 0;
  }
  
  .hero h2 {
    font-size: 1.8rem;
  }
  
  .hero p {
    font-size: 1.1rem;
  }
  
  .footer-contact-form {
    padding: var(--spacing-sm);
  }
  
  .contact-form input,
  .contact-form textarea {
    padding: 0.8rem 1rem;
    font-size: 0.95rem;
  }
}

@media (max-width: 480px) {
  :root {
    --spacing-lg: 2.5rem;
    --spacing-xl: 3rem;
  }
  
  h1 { font-size: 1.8rem; }
  h2 { font-size: 1.5rem; }
  h3 { font-size: 1.3rem; }
  
  .section {
    padding: var(--spacing-lg) 0;
  }
  
  .btn {
    width: 100%;
    padding: 0.8rem 1.5rem;
  }
  
  .method-steps,
  .values-grid,
  .testimonials-grid,
  .formation-list,
  .target-audience ul,
  .sectors ul {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    gap: var(--spacing-md);
  }
}

/* ===== PRINT STYLES ===== */
@media print {
  .header,
  .footer,
  .lang-toggle,
  .btn,
  .contact-form {
    display: none !important;
  }
  
  body {
    font-size: 12pt;
    color: #000;
    background: #fff;
  }
  
  .section {
    padding: 1cm 0;
    page-break-inside: avoid;
  }
}

/* ===== REDUCED MOTION ===== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  
  .animate-on-scroll {
    opacity: 1 !important;
    transform: none !important;
  }
}

/* ===== FOCUS VISIBLE FOR ACCESSIBILITY ===== */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
}

/* ===== DARK MODE SUPPORT (Optional Enhancement) ===== */
@media (prefers-color-scheme: dark) {
  :root {
    --color-text: #e0e0e0;
    --color-text-light: #b0b0b0;
    --color-light: #1a1a2e;
    --color-white: #16213e;
  }
  
  body {
    background: #0f172a;
  }
  
  .section:nth-child(even) {
    background: #1e293b;
  }
  
  .step,
  .value-item,
  .testimonial,
  .formation-list li,
  .footer-contact-form {
    background: #1e293b;
  }
  
  .contact-form input,
  .contact-form textarea {
    background: #0f172a;
    border-color: #334155;
    color: var(--color-text);
  }
}