/* ============================================
   TOKENS
   ============================================ */
:root {
  --bg: #FAFAF8;
  --ink: #0D0D0D;
  --ink-soft: #4A4A45;
  --muted: #8A8A82;
  --line: #E8E6DF;
  --accent: #5B5FEF;
  --accent-soft: #ECEDFD;

  --font-display: 'Fraunces', serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --container: 1100px;
  --gutter: clamp(1.5rem, 5vw, 4rem);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

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

::selection {
  background: var(--accent);
  color: #fff;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* subtle grain so the off-white doesn't feel flat */
.noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 999;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ============================================
   NAV
   ============================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem var(--gutter);
  background: rgba(250, 250, 248, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.nav__mark {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
}

.nav__links {
  display: flex;
  gap: 2.25rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.nav__links a {
  position: relative;
  padding-bottom: 2px;
}

.nav__links a::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.25s ease;
}

.nav__links a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
}

.nav__toggle span {
  display: block;
  height: 1.5px;
  background: var(--ink);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

/* ============================================
   HERO
   ============================================ */
.hero {
  max-width: var(--container);
  margin: 0 auto;
  padding: clamp(4rem, 12vh, 8rem) var(--gutter) clamp(3rem, 8vh, 5rem);
}

.hero__eyebrow {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 1.75rem;
}

.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

.hero__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.4rem, 6.5vw, 4.6rem);
  line-height: 1.05;
  letter-spacing: -0.01em;
  margin: 0 0 1.75rem;
  max-width: 16ch;
}

.hero__sub {
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  color: var(--ink-soft);
  max-width: 56ch;
  margin: 0 0 2.5rem;
}

.hero__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 4rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.85rem 1.6rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  border-radius: 2px;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.btn--primary {
  background: var(--ink);
  color: var(--bg);
}

.btn--primary:hover {
  background: var(--accent);
}

.btn--ghost {
  border: 1px solid var(--line);
  color: var(--ink);
}

.btn--ghost:hover {
  border-color: var(--ink);
}

.hero__stack {
  padding-top: 2rem;
  border-top: 1px solid var(--line);
}

.hero__stack > span:first-child {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 0.75rem;
}

.hero__stack-list {
  display: flex;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--ink-soft);
  flex-wrap: wrap;
}

.hero__stack-list span:nth-child(even) {
  color: var(--muted);
}

/* ============================================
   SECTIONS — shared
   ============================================ */
.section {
  max-width: var(--container);
  margin: 0 auto;
  padding: clamp(3rem, 8vh, 5.5rem) var(--gutter);
  border-top: 1px solid var(--line);
}

.section__label {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.label-mono {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--accent);
  white-space: nowrap;
}

.label-line {
  flex: 1;
  height: 1px;
  background: var(--line);
}

.section__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  margin: 0 0 1rem;
  letter-spacing: -0.01em;
}

.section__intro {
  color: var(--ink-soft);
  max-width: 60ch;
  font-size: 1.02rem;
  margin: 0 0 2.75rem;
}

/* ============================================
   PROJECTS
   ============================================ */
.projects {
  display: flex;
  flex-direction: column;
}

.project {
  padding: 2.25rem 0;
  border-top: 1px solid var(--line);
}

.project:last-child {
  padding-bottom: 0;
}

.project__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.85rem;
  flex-wrap: wrap;
}

.project__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.5rem;
  margin: 0;
}

.project__tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  color: var(--accent);
  border: 1px solid var(--accent-soft);
  background: var(--accent-soft);
  padding: 0.25rem 0.6rem;
  border-radius: 2px;
  white-space: nowrap;
}

.project__desc {
  color: var(--ink-soft);
  max-width: 64ch;
  margin: 0 0 1.25rem;
}

.project__spec {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  border-left: 2px solid var(--line);
  padding-left: 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-width: 64ch;
  transition: border-color 0.2s ease;
}

.project:hover .project__spec {
  border-left-color: var(--accent);
}

.spec__row {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 1rem;
  color: var(--ink-soft);
}

.spec__row > span:first-child {
  color: var(--muted);
  letter-spacing: 0.04em;
}

/* ============================================
   CATALOG — sous-catégories de projets téléchargeables
   ============================================ */
.catalog {
  margin-bottom: 3rem;
}

.catalog:last-child {
  margin-bottom: 0;
}

.catalog__header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding-bottom: 0.85rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--ink);
}

.catalog__cat {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
}

.catalog__count {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
}

.catalog__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 1.5rem;
  background: #fff;
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(13, 13, 13, 0.06);
}

.card__icon {
  font-size: 1.8rem;
  margin-bottom: 1rem;
  line-height: 1;
}

.card__body {
  flex: 1;
}

.card__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  margin: 0 0 0.5rem;
}

.card__desc {
  color: var(--ink-soft);
  font-size: 0.92rem;
  margin: 0 0 1rem;
  line-height: 1.5;
}

.card__meta {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.02em;
  margin-bottom: 1.25rem;
}

.card__dot {
  color: var(--line);
}

.card__dl {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 3px;
  color: var(--ink);
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.card__dl:hover {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}

.card__dl-icon {
  transition: transform 0.2s ease;
}

.card__dl:hover .card__dl-icon {
  transform: translateY(2px);
}


.about__grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 3rem;
}

.about__text p {
  color: var(--ink-soft);
  max-width: 62ch;
  margin: 0 0 1.25rem;
}

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

/* ============================================
   CONTACT
   ============================================ */
.contact__links {
  display: flex;
  flex-direction: column;
}

.contact__item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.4rem 0;
  border-top: 1px solid var(--line);
  transition: padding-left 0.2s ease, color 0.2s ease;
}

.contact__item:last-child {
  border-bottom: 1px solid var(--line);
}

.contact__item:hover {
  padding-left: 0.75rem;
  color: var(--accent);
}

.contact__label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.08em;
}

.contact__value {
  font-family: var(--font-display);
  font-size: 1.2rem;
}

/* ============================================
   CONTACT FORM
   ============================================ */
.contact__form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  max-width: 560px;
  margin-bottom: 2.5rem;
}

.form__row {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  position: relative;
}

.form__row-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
}

.form__row label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.form__counter {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--muted);
  transition: color 0.2s ease;
}

.form__counter.is-near-limit {
  color: var(--accent);
}

.form__row input,
.form__row textarea {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 0.8rem 0.95rem;
  resize: vertical;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form__row input::placeholder,
.form__row textarea::placeholder {
  color: var(--muted);
}

.form__row input:hover,
.form__row textarea:hover {
  border-color: #c8c6bd;
}

.form__row input:focus,
.form__row textarea:focus {
  border-color: var(--accent);
  outline: none;
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.form__row.has-error input,
.form__row.has-error textarea {
  border-color: #D14343;
}

.form__row.has-error input:focus,
.form__row.has-error textarea:focus {
  box-shadow: 0 0 0 3px rgba(209, 67, 67, 0.12);
}

.form__error {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: #D14343;
  min-height: 1em;
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.form__row.has-error .form__error {
  opacity: 1;
  transform: translateY(0);
}

.form__submit {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  border: none;
  cursor: pointer;
  margin-top: 0.25rem;
  position: relative;
  min-width: 190px;
  justify-content: center;
  transition: background 0.2s ease, opacity 0.2s ease, transform 0.1s ease;
}

.form__submit:active {
  transform: scale(0.98);
}

.form__submit:disabled {
  cursor: default;
  opacity: 0.7;
}

.form__submit-icon {
  transition: transform 0.2s ease;
}

.form__submit:hover:not(:disabled) .form__submit-icon {
  transform: translate(2px, -2px);
}

.form__submit.is-loading .form__submit-label::after {
  content: '';
  display: inline-block;
  width: 12px;
  height: 12px;
  margin-left: 0.6rem;
  border: 2px solid rgba(250, 250, 248, 0.4);
  border-top-color: var(--bg);
  border-radius: 50%;
  vertical-align: -2px;
  animation: spin 0.6s linear infinite;
}

.form__submit.is-loading .form__submit-icon {
  display: none;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.form__confirm {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 3px;
  padding: 0.85rem 1rem;
  margin: 0;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  padding-top: 0;
  padding-bottom: 0;
  transition: max-height 0.3s ease, opacity 0.3s ease, padding 0.3s ease, margin 0.3s ease;
}

.form__confirm.is-visible {
  max-height: 80px;
  opacity: 1;
  padding-top: 0.85rem;
  padding-bottom: 0.85rem;
  margin-top: 0.25rem;
}

.contact__divider {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 0.75rem;
}


.footer {
  max-width: var(--container);
  margin: 0 auto;
  padding: 2rem var(--gutter) 3rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted);
}

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

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 720px) {
  .nav__links {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    gap: 0;
    padding: 0.5rem var(--gutter) 1rem;
    transform: translateY(-110%);
    opacity: 0;
    transition: transform 0.25s ease, opacity 0.25s ease;
  }

  .nav__links.is-open {
    transform: translateY(0);
    opacity: 1;
  }

  .nav__links a {
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--line);
  }

  .nav__toggle {
    display: flex;
  }

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

  .catalog__header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
  }

  .about__grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .spec__row {
    grid-template-columns: 1fr;
    gap: 0.2rem;
  }

  .project__head {
    flex-direction: column;
    align-items: flex-start;
  }
}