/* ==========================================================================
   Portfolio Laurent Roches — Style principal
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CUSTOM PROPERTIES (Design Tokens)
   -------------------------------------------------------------------------- */

:root {
  /* Couleurs */
  --color-bg-primary: #ffffff;
  --color-bg-secondary: #f0f2f5;
  --color-bg-tertiary: #e4e7eb;
  --color-accent: #e67e22;
  --color-accent-hover: #d35400;
  --color-text-primary: #1a1a2e;
  --color-text-secondary: #4a5568;
  --color-text-muted: #718096;
  --color-border: #d1d5db;
  --color-text-on-accent: #ffffff;

  /* Typographie */
  --font-heading: 'Syne', system-ui, sans-serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
  --font-size-base: 1rem;
  --font-size-sm: 0.875rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 2rem;
  --font-size-3xl: 2.5rem;
  --font-size-hero: clamp(2.5rem, 5vw, 4rem);

  /* Espacements */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-section: clamp(4rem, 8vw, 8rem);

  /* Layout */
  --max-width: 1200px;
  --nav-height: 4rem;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;

  /* Bordures */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-full: 9999px;
}

/* --------------------------------------------------------------------------
   2. RESET MINIMAL
   -------------------------------------------------------------------------- */

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

* {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img,
picture,
video,
svg {
  display: block;
  max-width: 100%;
}

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

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

ul,
ol {
  list-style: none;
}

button {
  font: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

/* --------------------------------------------------------------------------
   3. LAYOUT UTILITAIRES
   -------------------------------------------------------------------------- */

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--space-lg);
}

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

.section--alt {
  background-color: var(--color-bg-secondary);
  position: relative;
}

.section--alt::before,
.section--alt::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  height: 80px;
  pointer-events: none;
  z-index: 1;
}

.section--alt::before {
  top: 0;
  background: linear-gradient(to bottom, var(--color-bg-primary), var(--color-bg-secondary));
}

.section--alt::after {
  bottom: 0;
  background: linear-gradient(to bottom, var(--color-bg-secondary), var(--color-bg-primary));
}

.section__header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-2xl);
  font-weight: 700;
  margin-bottom: var(--space-md);
  color: var(--color-text-primary);
}

.section__subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin-inline: auto;
}

/* --------------------------------------------------------------------------
   4. SKIP LINK (Accessibilite)
   -------------------------------------------------------------------------- */

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  background: var(--color-accent);
  color: var(--color-text-on-accent);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  font-weight: 700;
  z-index: 9999;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-md);
  color: var(--color-text-on-accent);
}

/* --------------------------------------------------------------------------
   5. NAVIGATION
   -------------------------------------------------------------------------- */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  background: transparent;
  border-bottom: none;
  z-index: 1000;
  display: flex;
  align-items: center;
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

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

.nav__logo {
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  font-weight: 800;
  color: var(--color-accent);
  letter-spacing: -0.02em;
}

.nav__logo:hover {
  color: var(--color-accent-hover);
}

.nav__toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 2.5rem;
  height: 2.5rem;
  gap: 5px;
  z-index: 1001;
}

.nav__hamburger,
.nav__hamburger::before,
.nav__hamburger::after {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.nav__hamburger {
  position: relative;
}

.nav__hamburger::before,
.nav__hamburger::after {
  content: '';
  position: absolute;
  left: 0;
}

.nav__hamburger::before {
  top: -7px;
}

.nav__hamburger::after {
  top: 7px;
}

/* Hamburger -> X animation */
.nav__toggle[aria-expanded="true"] .nav__hamburger {
  background: transparent;
}

.nav__toggle[aria-expanded="true"] .nav__hamburger::before {
  top: 0;
  transform: rotate(45deg);
}

.nav__toggle[aria-expanded="true"] .nav__hamburger::after {
  top: 0;
  transform: rotate(-45deg);
}

.nav__menu {
  position: fixed;
  top: 0;
  right: 0;
  width: min(75vw, 300px);
  height: 100vh;
  height: 100dvh;
  background: var(--color-bg-secondary);
  border-left: 1px solid var(--color-border);
  padding: calc(var(--nav-height) + var(--space-xl)) var(--space-xl) var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  transform: translateX(100%);
  transition: transform var(--transition-base);
  z-index: 1000;
}

.nav__menu.is-open {
  transform: translateX(0);
}

.nav__menu a {
  font-family: var(--font-heading);
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-text-primary);
  padding: var(--space-sm) 0;
  position: relative;
  transition: color var(--transition-fast);
}

.nav__menu a:hover,
.nav__menu a.is-active {
  color: var(--color-accent);
}

.nav__menu a.is-active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-accent);
}

/* Overlay mobile */
.nav__overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 999;
}

.nav__overlay.is-visible {
  display: block;
}

/* --------------------------------------------------------------------------
   6. HERO
   -------------------------------------------------------------------------- */

.hero {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
}

.hero .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2xl);
  text-align: center;
}

.hero__photo {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  border: 3px solid var(--color-accent);
  object-fit: cover;
  flex-shrink: 0;
}

.hero__content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
}

.hero__name {
  font-family: var(--font-heading);
  font-size: var(--font-size-hero);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.hero__tagline {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 500px;
}

.hero__badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-md);
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  white-space: nowrap;
}

.badge svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.hero__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  background: var(--color-accent);
  color: var(--color-text-on-accent);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--font-size-base);
  border-radius: var(--radius-md);
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.hero__cta:hover {
  background: var(--color-accent-hover);
  color: var(--color-text-on-accent);
  transform: translateY(-2px);
}

.hero__socials {
  display: flex;
  gap: var(--space-lg);
}

.hero__socials a {
  color: var(--color-text-secondary);
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.hero__socials a:hover {
  color: var(--color-accent);
  transform: translateY(-2px);
}

.hero__socials svg {
  width: 24px;
  height: 24px;
}

/* --------------------------------------------------------------------------
   7. A PROPOS
   -------------------------------------------------------------------------- */

.about__content {
  max-width: 720px;
  margin-inline: auto;
  text-align: center;
}

.about__text {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-xl);
}

.about__highlights {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md);
}

.about__highlight {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
}

.about__highlight svg {
  width: 18px;
  height: 18px;
  color: var(--color-accent);
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   8. PROJET ONLYROLL (Case Study)
   -------------------------------------------------------------------------- */

.projects__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3xl);
}

.project-featured {
  display: grid;
  gap: var(--space-2xl);
}

.project-featured__header {
  text-align: center;
}

.project-featured__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-2xl);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.project-featured__subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
}

.project-featured__screenshot {
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
}

.project-featured__screenshot a {
  display: block;
}

.project-featured__screenshot img {
  width: 100%;
  height: auto;
}

.project-featured__details {
  display: grid;
  gap: var(--space-2xl);
}

.project-detail {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.project-detail__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-accent);
}

.project-detail__text {
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.project-detail__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.project-detail__list li {
  position: relative;
  padding-left: var(--space-lg);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.project-detail__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
}

.project-featured__stack {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.project-featured__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: center;
  margin-top: var(--space-xl);
}

.project-featured--playground .project-featured__screenshot {
  display: flex;
  justify-content: center;
  background: var(--color-bg-secondary);
  padding: var(--space-xl);
}

.project-featured--playground .project-featured__screenshot img {
  max-width: 280px;
  width: 100%;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--font-size-base);
  transition: all var(--transition-fast);
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-text-on-accent);
}

.btn--primary:hover {
  background: var(--color-accent-hover);
  color: var(--color-text-on-accent);
  transform: translateY(-2px);
}

.btn--outline {
  background: transparent;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
}

.btn--outline:hover {
  background: var(--color-accent);
  color: var(--color-text-on-accent);
  transform: translateY(-2px);
}

.btn svg {
  width: 18px;
  height: 18px;
}

/* --------------------------------------------------------------------------
   9. COMPETENCES
   -------------------------------------------------------------------------- */

.skills__grid {
  display: grid;
  gap: var(--space-xl);
}

.skill-category {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
}

.section--alt .skill-category {
  background: var(--color-bg-primary);
}

.skill-category__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: var(--space-lg);
  color: var(--color-accent);
}

.skill-category__list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.skill-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-md);
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  transition: border-color var(--transition-fast);
}

.skill-badge:hover {
  border-color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   10. CV TELECHARGEABLE
   -------------------------------------------------------------------------- */

.cv__grid {
  display: grid;
  gap: var(--space-xl);
  max-width: 700px;
  margin-inline: auto;
}

.cv-card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
  transition: border-color var(--transition-fast);
}

.section--alt .cv-card {
  background: var(--color-bg-primary);
}

.cv-card:hover {
  border-color: var(--color-accent);
}

.cv-card__icon {
  width: 48px;
  height: 48px;
  color: var(--color-accent);
}

.cv-card__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-lg);
  font-weight: 700;
}

.cv-card__description {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* --------------------------------------------------------------------------
   11. CERTIFICATIONS
   -------------------------------------------------------------------------- */

.certifications__grid {
  display: grid;
  gap: var(--space-xl);
  max-width: 500px;
  margin-inline: auto;
}

.certification-card {
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  text-decoration: none;
  color: inherit;
  transition: border-color var(--transition-fast);
}

.certification-card:hover {
  border-color: var(--color-accent);
}

.certification-card__icon {
  width: 48px;
  height: 48px;
  color: var(--color-accent);
}

.certification-card__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-lg);
  font-weight: 700;
}

.certification-card__organisme {
  font-size: var(--font-size-base);
  font-weight: 500;
  color: var(--color-text-secondary);
}

.certification-card__meta {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   12. CONTACT
   -------------------------------------------------------------------------- */

.contact__content {
  max-width: 600px;
  margin-inline: auto;
  text-align: center;
}

.contact__text {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2xl);
}

.contact__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  align-items: center;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-md);
  font-size: var(--font-size-lg);
  color: var(--color-text-primary);
  transition: color var(--transition-fast);
}

.contact-link:hover {
  color: var(--color-accent);
}

.contact-link svg {
  width: 24px;
  height: 24px;
  color: var(--color-accent);
  flex-shrink: 0;
}

.contact__availability {
  margin-top: var(--space-2xl);
  padding: var(--space-md) var(--space-xl);
  background: rgba(230, 126, 34, 0.1);
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-md);
  display: inline-block;
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   13. FOOTER
   -------------------------------------------------------------------------- */

.site-footer {
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.site-footer p {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

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

.site-footer a:hover {
  color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   14. ANIMATIONS AU SCROLL
   -------------------------------------------------------------------------- */

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

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

.stagger > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.stagger > .visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .fade-in,
  .stagger > * {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* --------------------------------------------------------------------------
   15. MEDIA QUERIES
   -------------------------------------------------------------------------- */

/* --- Tablette (768px+) --- */
@media (min-width: 768px) {
  .section__title {
    font-size: var(--font-size-3xl);
  }

  /* Navigation desktop */
  .nav__toggle {
    display: none;
  }

  .nav__overlay {
    display: none !important;
  }

  .nav__menu {
    position: static;
    width: auto;
    height: auto;
    background: transparent;
    border: none;
    padding: 0;
    flex-direction: row;
    gap: var(--space-xl);
    transform: none;
    transition: none;
  }

  .nav__menu a {
    font-size: var(--font-size-sm);
    padding: var(--space-xs) 0;
  }

  .nav__menu a.is-active::after {
    bottom: -4px;
  }

  /* Hero desktop */
  .hero .container {
    flex-direction: row-reverse;
    text-align: left;
    gap: var(--space-3xl);
  }

  .hero__photo {
    width: 250px;
    height: 250px;
  }

  .hero__content {
    align-items: flex-start;
  }

  .hero__badges {
    justify-content: flex-start;
  }

  /* Skills grid */
  .skills__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* CV grid */
  .cv__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Project details */
  .project-featured__details {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Contact links */
  .contact__links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg) var(--space-xl);
    justify-items: center;
  }
}

/* --- Desktop (1280px+) --- */
@media (min-width: 1280px) {
  .hero__photo {
    width: 300px;
    height: 300px;
  }

  /* Skills grid 4 colonnes */
  .skills__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}