/* =========================================================
   Les Serres du Coteau — feuille de style
   Palette : parchemin verdâtre / encre vert botanique / vert
   vivant / ambre — rose floraison réservé au "en fleur maintenant".
   ========================================================= */

:root {
  --paper:      #f2eee1;
  --paper-deep: #e8e2cf;
  --paper-card: #f8f5ec;
  --ink:        #16261b;
  --moss:       #38503b;
  --moss-soft:  #5d6f5a;
  --leaf:       #5c8a4a;
  --leaf-deep:  #3f6a32;
  --honey:      #c0851f;
  --bloom:      #c2557a;
  --line:       #cdc6b0;

  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Hanken Grotesk", system-ui, sans-serif;
  --font-mono: "Spline Sans Mono", ui-monospace, monospace;

  --maxw: 1140px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --section-y: clamp(4.5rem, 9vw, 8rem);
}

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

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: clamp(1rem, 0.96rem + 0.25vw, 1.125rem);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3 { font-family: var(--font-display); font-weight: 500; line-height: 1.05; }
p { margin: 0 0 1rem; }
a { color: inherit; }

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

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--leaf-deep);
  margin: 0 0 1.1rem;
}

.section-title {
  font-size: clamp(1.9rem, 1.3rem + 2.6vw, 3.1rem);
  letter-spacing: -0.01em;
  margin: 0 0 1.4rem;
  max-width: 16ch;
}

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

.skip-link {
  position: absolute;
  left: -999px;
  top: 0.5rem;
  background: var(--ink);
  color: var(--paper);
  padding: 0.6rem 1rem;
  border-radius: 4px;
  z-index: 100;
}
.skip-link:focus { left: 0.5rem; }

:focus-visible {
  outline: 2.5px solid var(--leaf-deep);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---------- Header / nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 0.9rem;
}
.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 1.12rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.brand__mark { color: var(--leaf); transform: translateY(1px); }
.nav__menu {
  list-style: none;
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.2vw, 2.1rem);
  margin: 0;
  padding: 0;
}
.nav__menu a {
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--moss);
  padding-bottom: 2px;
  border-bottom: 1.5px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}
.nav__menu a:hover { color: var(--ink); border-color: var(--leaf); }
.nav__cta {
  background: var(--ink);
  color: var(--paper) !important;
  padding: 0.5rem 1rem !important;
  border-radius: 999px;
  border: none !important;
}
.nav__cta:hover { background: var(--leaf-deep); }
.nav__toggle {
  display: none;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.45rem 0.9rem;
  color: var(--ink);
  cursor: pointer;
}

/* ---------- Hero ---------- */
.hero {
  padding-top: clamp(3.5rem, 8vw, 7rem);
  padding-bottom: clamp(2.5rem, 5vw, 4rem);
  position: relative;
  overflow: hidden;
}
.hero__grid { max-width: 980px; }
.hero__title {
  font-size: clamp(2.6rem, 1.3rem + 6vw, 6rem);
  letter-spacing: -0.02em;
  margin: 0 0 1.6rem;
  font-optical-sizing: auto;
}
.hero__title em {
  font-style: italic;
  font-weight: 400;
  color: var(--leaf-deep);
}
.hero__lede {
  font-size: clamp(1.1rem, 1rem + 0.6vw, 1.45rem);
  max-width: 46ch;
  color: var(--moss);
  margin-bottom: 2.2rem;
}
.hero__season {
  display: inline-grid;
  grid-template-columns: auto auto;
  align-items: baseline;
  gap: 0.35rem 0.9rem;
  padding: 1rem 1.3rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--paper-card);
}
.hero__season-label {
  grid-column: 1 / -1;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--moss-soft);
}
.hero__season-name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-style: italic;
  color: var(--bloom);
}
.hero__season-list { font-size: 0.96rem; color: var(--moss); }
.hero__rule {
  height: 1px;
  background: var(--line);
  margin-top: clamp(2.5rem, 5vw, 4rem);
  max-width: var(--maxw);
  margin-inline: auto;
}

/* ---------- Atelier ---------- */
.atelier__grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}
.atelier__intro p { color: var(--moss); max-width: 48ch; }
.atelier__facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  margin: 0;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
}
.fact {
  background: var(--paper-card);
  padding: 1.5rem 1.3rem;
}
.fact dt {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--moss-soft);
  margin-bottom: 0.5rem;
}
.fact dd {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 1.4rem + 2vw, 2.9rem);
  color: var(--leaf-deep);
}

/* ---------- Calendrier (signature) ---------- */
.calendrier { background: var(--ink); color: var(--paper); }
.calendrier .eyebrow { color: var(--leaf); }
.calendrier .section-title { color: var(--paper); }
.calendrier__head { max-width: 60ch; margin-bottom: clamp(2rem, 4vw, 3rem); }
.calendrier__note { color: color-mix(in srgb, var(--paper) 75%, transparent); max-width: 50ch; }

.cal__months {
  display: grid;
  grid-template-columns: var(--cal-label, 13rem) repeat(12, 1fr);
  gap: 0.25rem;
  margin-bottom: 0.6rem;
  padding-left: 0;
}
.cal__month {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  text-align: center;
  color: color-mix(in srgb, var(--paper) 60%, transparent);
  background: none;
  border: none;
  padding: 0.35rem 0;
  cursor: pointer;
  border-radius: 6px;
  transition: background 0.18s, color 0.18s;
}
.cal__month:first-child {
  grid-column: 1;
  text-align: left;
  cursor: default;
  color: color-mix(in srgb, var(--paper) 45%, transparent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}
.cal__month:hover:not(:first-child) { color: var(--paper); background: rgba(255,255,255,0.07); }
.cal__month.is-now { color: var(--bloom); }
.cal__month.is-active { background: var(--leaf-deep); color: var(--paper); }

.cal__rows { list-style: none; margin: 0; padding: 0; }
.cal__row {
  display: grid;
  grid-template-columns: var(--cal-label, 13rem) repeat(12, 1fr);
  gap: 0.25rem;
  align-items: center;
  padding: 0.42rem 0;
  border-top: 1px solid rgba(255,255,255,0.1);
  transition: opacity 0.25s;
}
.cal__row.is-dim { opacity: 0.22; }
.cal__name {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  padding-right: 0.8rem;
}
.cal__name b { font-weight: 500; font-size: 0.98rem; }
.cal__name i {
  font-family: var(--font-mono);
  font-style: italic;
  font-size: 0.72rem;
  color: color-mix(in srgb, var(--paper) 55%, transparent);
}
.cal__cell {
  height: 0.62rem;
  background: transparent;
}
.cal__cell.on {
  background: var(--leaf);
}
.cal__cell.start { border-top-left-radius: 999px; border-bottom-left-radius: 999px; }
.cal__cell.end { border-top-right-radius: 999px; border-bottom-right-radius: 999px; }
.cal__cell.on.now { background: var(--bloom); }
.cal__row:hover .cal__cell.on { background: color-mix(in srgb, var(--leaf) 100%, white 12%); }
.cal__row:hover .cal__cell.on.now { background: var(--bloom); }

.cal__legend {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: color-mix(in srgb, var(--paper) 65%, transparent);
  margin-top: 1.4rem;
}
.cal__swatch {
  display: inline-block;
  width: 1.4rem; height: 0.55rem;
  border-radius: 999px;
  background: var(--leaf);
  margin-left: 0.6rem;
}
.cal__swatch:first-child { margin-left: 0; }
.cal__swatch--now { background: var(--bloom); }

/* ---------- Collections ---------- */
.collections__head { margin-bottom: clamp(2rem, 4vw, 3rem); }
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1.2rem;
}
.plant-card {
  background: var(--paper-card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.8rem 1.6rem;
  position: relative;
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}
.plant-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 40px -28px rgba(22,38,27,0.55);
  border-color: var(--leaf);
}
.plant-card__latin {
  font-family: var(--font-mono);
  font-style: italic;
  font-size: 0.78rem;
  color: var(--honey);
  margin: 0 0 1.4rem;
  letter-spacing: 0.02em;
}
.plant-card__name { font-size: 1.5rem; margin: 0 0 0.8rem; }
.plant-card__desc { color: var(--moss); font-size: 0.98rem; }
.plant-card__meta {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--moss-soft);
  margin: 0;
  padding-top: 0.9rem;
  border-top: 1px solid var(--line);
}

/* ---------- Services ---------- */
.services { background: var(--paper-deep); }
.services__grid {
  display: grid;
  grid-template-columns: 0.9fr 1.4fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}
.services__list { list-style: none; margin: 0; padding: 0; }
.service {
  padding: 1.6rem 0;
  border-top: 1px solid var(--line);
}
.service:first-child { padding-top: 0; border-top: none; }
.service h3 { font-size: 1.45rem; margin: 0 0 0.5rem; }
.service p { color: var(--moss); margin: 0; max-width: 52ch; }

/* ---------- Visite / contact ---------- */
.visite__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}
.visite__address {
  font-style: normal;
  font-size: 1.15rem;
  margin-bottom: 1.6rem;
  color: var(--ink);
}
.visite__hours { margin: 0 0 1.6rem; display: grid; gap: 0.4rem; }
.visite__hours div {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.55rem 0;
  border-bottom: 1px dotted var(--line);
}
.visite__hours dt { color: var(--moss); }
.visite__hours dd { margin: 0; font-weight: 600; }
.visite__phone { font-family: var(--font-mono); font-size: 0.95rem; }
.visite__phone a { color: var(--leaf-deep); text-decoration: none; }
.visite__phone a:hover { text-decoration: underline; }

.visite__form {
  background: var(--paper-card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: clamp(1.5rem, 3vw, 2.4rem);
}
.form-intro { color: var(--moss); margin-bottom: 1.4rem; }
.field { margin-bottom: 1.1rem; }
.field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--moss);
  margin-bottom: 0.4rem;
}
.field input, .field textarea {
  width: 100%;
  font: inherit;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.7rem 0.85rem;
  resize: vertical;
}
.field input:focus, .field textarea:focus {
  border-color: var(--leaf);
  outline-offset: 1px;
}
.btn {
  font: inherit;
  font-weight: 600;
  background: var(--ink);
  color: var(--paper);
  border: none;
  border-radius: 999px;
  padding: 0.75rem 1.6rem;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
}
.btn:hover { background: var(--leaf-deep); }
.btn:active { transform: translateY(1px); }
.form-status { font-size: 0.9rem; margin: 0.9rem 0 0; min-height: 1.2em; color: var(--leaf-deep); }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--ink);
  color: var(--paper);
  padding-block: clamp(2.5rem, 5vw, 4rem);
}
.site-footer__grid { display: grid; gap: 0.35rem; }
.brand--footer { color: var(--paper); margin: 0 0 0.4rem; }
.brand--footer span { color: var(--leaf); }
.site-footer__line { color: color-mix(in srgb, var(--paper) 70%, transparent); margin: 0; }
.site-footer__credit { font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.05em; }

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .plant-card, .btn, .nav__menu a, .nav__cta { transition: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .atelier__grid,
  .services__grid,
  .visite__grid { grid-template-columns: 1fr; }
  .services__head .section-title { max-width: none; }

  .nav__toggle { display: inline-block; }
  .nav__menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.2rem;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    padding: 1rem var(--gutter) 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }
  .nav__menu.is-open { max-height: 360px; }
  .nav__menu a { padding-block: 0.5rem; }
  .nav__cta { margin-top: 0.5rem; }
}

@media (max-width: 640px) {
  :root { --cal-label: 8.5rem; }
  .cal__name i { display: none; }
  .cal__month { font-size: 0.6rem; }
  .cal__name b { font-size: 0.85rem; }
}

@media (max-width: 460px) {
  .atelier__facts { grid-template-columns: 1fr; }
}