/* ============================================================
   FOLDIA — Design System "Blanc & Encre"
   DA_04 — Version finale
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&family=Inter:wght@300;400;500;600&display=swap');

/* ── Variables ─────────────────────────────────────────────── */
:root {
  --newsprint:  #F9F5EE;
  --papier:     #EDEAD2;
  --regle:      #C3C3BC;
  --gris:       #9C9888;
  --bordeaux:   #7B1C19;
  --bordeaux-hover: #5E1514;
  --encre-d:    #3A2730;
  --encre:      #000800;

  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans:  'Inter', system-ui, sans-serif;

  --nav-h: 72px;
  --max-w: 1140px;
  --radius: 4px;
  --radius-lg: 8px;

  --shadow-sm: 0 1px 4px rgba(58,39,48,.08);
  --shadow-md: 0 4px 20px rgba(58,39,48,.10);
  --shadow-lg: 0 12px 48px rgba(58,39,48,.14);

  --transition: 0.2s ease;
}

/* ── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-sans);
  background: var(--newsprint);
  color: var(--encre);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }

/* ── Layout helpers ─────────────────────────────────────────── */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }
.section--alt { background: var(--papier); }
.section--dark { background: var(--encre-d); color: var(--newsprint); }

/* ── Typography ─────────────────────────────────────────────── */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  color: var(--encre-d);
  line-height: 1.2;
  font-weight: 600;
}
h1 { font-size: clamp(2.4rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }
h4 { font-size: 1.1rem; }

.section--dark h1,
.section--dark h2,
.section--dark h3,
.section--dark h4 { color: var(--newsprint); }

.label {
  font-family: var(--font-sans);
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--bordeaux);
}
.section--dark .label { color: var(--regle); }

p { color: var(--gris); line-height: 1.75; }
.section--dark p { color: var(--regle); }

/* ── Buttons ─────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--radius);
  font-size: .9rem;
  font-weight: 500;
  font-family: var(--font-sans);
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--bordeaux);
  color: #fff;
}
.btn-primary:hover { background: var(--bordeaux-hover); transform: translateY(-1px); box-shadow: var(--shadow-md); }

.btn-outline {
  border: 1.5px solid var(--encre-d);
  color: var(--encre-d);
}
.btn-outline:hover { background: var(--encre-d); color: var(--newsprint); }

.btn-ghost {
  color: var(--bordeaux);
  padding: 13px 0;
}
.btn-ghost:hover { text-decoration: underline; }

.btn-sm { padding: 9px 20px; font-size: .82rem; }
.btn-lg { padding: 16px 36px; font-size: 1rem; }

/* ── Navigation ─────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  background: rgba(249,245,238,.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.nav.scrolled { border-color: var(--regle); box-shadow: var(--shadow-sm); }
.nav__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
  display: flex;
  align-items: center;
  gap: 40px;
}
.nav__logo {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--encre-d);
  letter-spacing: -.02em;
  flex-shrink: 0;
}
.nav__logo span { color: var(--bordeaux); }

.nav__links {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
}
.nav__links a {
  padding: 6px 14px;
  border-radius: var(--radius);
  font-size: .88rem;
  color: var(--encre-d);
  transition: background var(--transition), color var(--transition);
}
.nav__links a:hover { background: var(--papier); }
.nav__links a.active { color: var(--bordeaux); font-weight: 500; }

.nav__cta { display: flex; align-items: center; gap: 12px; margin-left: auto; }
.nav__burger { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.nav__burger span {
  display: block; width: 22px; height: 1.5px;
  background: var(--encre-d); border-radius: 2px;
  transition: all var(--transition);
}

/* ── Mobile nav ─────────────────────────────────────────────── */
.nav__mobile {
  display: none;
  position: fixed;
  top: var(--nav-h); left: 0; right: 0;
  background: var(--newsprint);
  border-bottom: 1px solid var(--regle);
  padding: 16px 24px 24px;
  z-index: 99;
  flex-direction: column;
  gap: 4px;
  box-shadow: var(--shadow-md);
}
.nav__mobile.open { display: flex; }
.nav__mobile a {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: .95rem;
  color: var(--encre-d);
  transition: background var(--transition);
}
.nav__mobile a:hover { background: var(--papier); }
.nav__mobile .btn { margin-top: 8px; text-align: center; justify-content: center; }

/* ── Hero ─────────────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
  background: var(--newsprint);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 50%; height: 100%;
  background: radial-gradient(ellipse at 80% 40%, rgba(123,28,25,.05) 0%, transparent 70%);
  pointer-events: none;
}
.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  padding: 80px 24px;
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
}
.hero__label { margin-bottom: 20px; }
.hero__title {
  margin-bottom: 24px;
  font-style: italic;
  color: var(--encre-d);
}
.hero__title em { font-style: normal; color: var(--bordeaux); }
.hero__subtitle {
  font-size: 1.05rem;
  color: var(--gris);
  max-width: 480px;
  margin-bottom: 36px;
}
.hero__actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 48px; }
.hero__social-proof {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: .82rem;
  color: var(--gris);
}
.hero__social-proof::before {
  content: '';
  width: 36px; height: 1px;
  background: var(--regle);
}
.hero__visual {
  display: flex;
  justify-content: center;
  align-items: center;
}
.hero__mockup {
  background: var(--encre-d);
  border-radius: 12px;
  padding: 28px;
  width: 100%;
  max-width: 420px;
  box-shadow: var(--shadow-lg);
  color: var(--newsprint);
}
.mockup__bar {
  display: flex;
  gap: 6px;
  margin-bottom: 20px;
}
.mockup__dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,.15);
}
.mockup__content { display: flex; flex-direction: column; gap: 12px; }
.mockup__row {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255,255,255,.06);
  border-radius: 6px;
  padding: 12px 14px;
}
.mockup__row-icon {
  width: 32px; height: 32px;
  border-radius: 6px;
  background: rgba(123,28,25,.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .9rem;
  flex-shrink: 0;
}
.mockup__row-text { flex: 1; }
.mockup__row-label {
  font-size: .75rem;
  color: rgba(249,245,238,.5);
  font-family: var(--font-sans);
  margin-bottom: 2px;
}
.mockup__row-val {
  font-family: var(--font-serif);
  font-size: .95rem;
  color: var(--newsprint);
}
.mockup__badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: rgba(123,28,25,.25);
  color: #f4a0a0;
  border-radius: 20px;
  padding: 2px 10px;
  font-size: .7rem;
  font-weight: 500;
  font-family: var(--font-sans);
}
.mockup__badge--green { background: rgba(34,197,94,.15); color: #86efac; }

/* ── Stats band ─────────────────────────────────────────────── */
.stats {
  background: var(--papier);
  border-top: 1px solid var(--regle);
  border-bottom: 1px solid var(--regle);
  padding: 48px 0;
}
.stats__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}
.stats__item {
  text-align: center;
  padding: 0 32px;
}
.stats__item:not(:last-child) { border-right: 1px solid var(--regle); }
.stats__num {
  font-family: var(--font-serif);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--bordeaux);
  line-height: 1;
  margin-bottom: 8px;
}
.stats__desc { font-size: .85rem; color: var(--gris); }

/* ── Features ─────────────────────────────────────────────────── */
.features__header { text-align: center; margin-bottom: 64px; }
.features__header h2 { margin-top: 12px; margin-bottom: 16px; }
.features__header p { max-width: 540px; margin: 0 auto; }
.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.feature-card {
  background: #fff;
  border: 1px solid var(--regle);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.feature-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.feature-card__icon {
  width: 48px; height: 48px;
  background: rgba(123,28,25,.08);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 20px;
}
.feature-card h3 { font-size: 1.1rem; margin-bottom: 10px; }
.feature-card p { font-size: .88rem; }

/* ── CTA section ─────────────────────────────────────────────── */
.cta-band {
  background: var(--encre-d);
  padding: 96px 0;
  text-align: center;
}
.cta-band h2 { color: var(--newsprint); margin: 16px 0 20px; font-style: italic; }
.cta-band p { max-width: 480px; margin: 0 auto 36px; font-size: 1rem; }
.cta-band .btn-primary { background: var(--bordeaux); }
.cta-band .btn-ghost { color: var(--regle); margin-left: 8px; }
.cta-band .btn-ghost:hover { color: #fff; }

/* ── Pricing ─────────────────────────────────────────────────── */
.pricing__header { text-align: center; margin-bottom: 56px; }
.pricing__header h2 { margin-top: 12px; margin-bottom: 16px; }
.pricing__toggle {
  display: inline-flex;
  background: var(--papier);
  border: 1px solid var(--regle);
  border-radius: 24px;
  padding: 4px;
  gap: 4px;
  margin-bottom: 48px;
}
.pricing__toggle button {
  padding: 8px 20px;
  border-radius: 20px;
  font-size: .85rem;
  font-weight: 500;
  color: var(--gris);
  transition: all var(--transition);
}
.pricing__toggle button.active {
  background: var(--encre-d);
  color: var(--newsprint);
}
.pricing__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  max-width: 820px;
  margin: 0 auto;
}
.pricing-card {
  background: #fff;
  border: 1px solid var(--regle);
  border-radius: var(--radius-lg);
  padding: 36px;
  position: relative;
}
.pricing-card--featured {
  border-color: var(--bordeaux);
  box-shadow: var(--shadow-md);
}
.pricing-card__badge {
  position: absolute;
  top: -12px; left: 50%;
  transform: translateX(-50%);
  background: var(--bordeaux);
  color: #fff;
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 4px 16px;
  border-radius: 20px;
}
.pricing-card__name {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--encre-d);
  margin-bottom: 4px;
}
.pricing-card__sub { font-size: .82rem; color: var(--gris); margin-bottom: 24px; }
.pricing-card__price {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 8px;
}
.pricing-card__amount {
  font-family: var(--font-serif);
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--encre-d);
}
.pricing-card__period { font-size: .88rem; color: var(--gris); }
.pricing-card__annual { font-size: .78rem; color: var(--bordeaux); margin-bottom: 28px; }
.pricing-card hr { border: none; border-top: 1px solid var(--regle); margin: 24px 0; }
.pricing-card__features { display: flex; flex-direction: column; gap: 12px; margin-bottom: 28px; }
.pricing-card__feat {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: .88rem;
  color: var(--encre);
}
.pricing-card__feat::before {
  content: '✓';
  color: var(--bordeaux);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}
.pricing-card .btn { width: 100%; justify-content: center; }

/* ── Testimonials ─────────────────────────────────────────────── */
.testimonials__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.testimonial {
  background: #fff;
  border: 1px solid var(--regle);
  border-radius: var(--radius-lg);
  padding: 28px;
}
.testimonial__quote {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-style: italic;
  color: var(--encre-d);
  line-height: 1.6;
  margin-bottom: 20px;
}
.testimonial__author {
  display: flex;
  align-items: center;
  gap: 12px;
}
.testimonial__avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--encre-d);
  color: var(--newsprint);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 600;
  flex-shrink: 0;
}
.testimonial__name { font-size: .9rem; font-weight: 600; color: var(--encre-d); }
.testimonial__role { font-size: .78rem; color: var(--gris); }

/* ── FAQ ─────────────────────────────────────────────────────── */
.faq__list { max-width: 720px; margin: 0 auto; }
.faq__item { border-bottom: 1px solid var(--regle); }
.faq__question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  font-weight: 500;
  color: var(--encre-d);
  cursor: pointer;
  font-size: .95rem;
  width: 100%;
  text-align: left;
  gap: 16px;
}
.faq__question::after {
  content: '+';
  font-size: 1.3rem;
  color: var(--bordeaux);
  flex-shrink: 0;
  transition: transform var(--transition);
}
.faq__item.open .faq__question::after { transform: rotate(45deg); }
.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}
.faq__answer p { padding-bottom: 20px; font-size: .9rem; }
.faq__item.open .faq__answer { max-height: 200px; }

/* ── Blog cards ─────────────────────────────────────────────── */
.blog__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.blog-card {
  background: #fff;
  border: 1px solid var(--regle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition);
}
.blog-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.blog-card__thumb {
  height: 180px;
  background: var(--papier);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
}
.blog-card__body { padding: 24px; }
.blog-card__cat {
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--bordeaux);
  margin-bottom: 8px;
}
.blog-card__title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--encre-d);
  margin-bottom: 10px;
  line-height: 1.4;
}
.blog-card__excerpt { font-size: .85rem; color: var(--gris); margin-bottom: 16px; }
.blog-card__meta { font-size: .78rem; color: var(--regle); }

/* ── Contact form ─────────────────────────────────────────────── */
.contact__grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 80px; align-items: start; }
.contact__info h2 { margin-top: 12px; margin-bottom: 20px; }
.contact__info p { margin-bottom: 32px; }
.contact__links { display: flex; flex-direction: column; gap: 16px; }
.contact__link {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: .9rem;
  color: var(--encre-d);
}
.contact__link-icon {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--papier);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .9rem;
  flex-shrink: 0;
}
.form { display: flex; flex-direction: column; gap: 20px; }
.form__group { display: flex; flex-direction: column; gap: 6px; }
.form__group label {
  font-size: .8rem;
  font-weight: 500;
  color: var(--encre-d);
  letter-spacing: .04em;
}
.form__group input,
.form__group select,
.form__group textarea {
  background: #fff;
  border: 1.5px solid var(--regle);
  border-radius: var(--radius);
  padding: 12px 14px;
  font-family: var(--font-sans);
  font-size: .9rem;
  color: var(--encre);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form__group input:focus,
.form__group select:focus,
.form__group textarea:focus {
  border-color: var(--bordeaux);
  box-shadow: 0 0 0 3px rgba(123,28,25,.1);
}
.form__group textarea { resize: vertical; min-height: 120px; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form__submit { align-self: flex-start; }

/* ── Footer ──────────────────────────────────────────────────── */
.footer {
  background: var(--encre-d);
  color: rgba(249,245,238,.7);
  padding: 64px 0 32px;
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 48px;
  margin-bottom: 48px;
}
.footer__brand .nav__logo { margin-bottom: 12px; display: block; }
.footer__brand p { font-size: .85rem; max-width: 240px; line-height: 1.7; }
.footer__col h4 {
  font-family: var(--font-sans);
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: rgba(249,245,238,.4);
  margin-bottom: 16px;
}
.footer__col ul { display: flex; flex-direction: column; gap: 10px; }
.footer__col ul a {
  font-size: .88rem;
  color: rgba(249,245,238,.7);
  transition: color var(--transition);
}
.footer__col ul a:hover { color: var(--newsprint); }
.footer__bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: .8rem;
  color: rgba(249,245,238,.35);
  flex-wrap: wrap;
  gap: 12px;
}
.footer__bottom a { color: inherit; transition: color var(--transition); }
.footer__bottom a:hover { color: rgba(249,245,238,.7); }

/* ── Page hero (inner pages) ─────────────────────────────────── */
.page-hero {
  background: var(--papier);
  border-bottom: 1px solid var(--regle);
  padding: calc(var(--nav-h) + 64px) 0 64px;
  text-align: center;
}
.page-hero h1 { margin-top: 12px; margin-bottom: 16px; }
.page-hero p { max-width: 540px; margin: 0 auto; font-size: 1.05rem; }

/* ── Divider ornament ────────────────────────────────────────── */
.ornament {
  text-align: center;
  color: var(--bordeaux);
  font-size: 1.2rem;
  margin: 16px 0;
  opacity: .6;
}

/* ── About team ──────────────────────────────────────────────── */
.team__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.team-card { text-align: center; }
.team-card__avatar {
  width: 88px; height: 88px;
  border-radius: 50%;
  background: var(--encre-d);
  color: var(--newsprint);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 600;
  margin: 0 auto 16px;
}
.team-card__name {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--encre-d);
  margin-bottom: 4px;
}
.team-card__role { font-size: .85rem; color: var(--gris); }

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .features__grid { grid-template-columns: repeat(2, 1fr); }
  .testimonials__grid { grid-template-columns: repeat(2, 1fr); }
  .blog__grid { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  .nav__links { display: none; }
  .nav__cta .btn-outline { display: none; }
  .nav__burger { display: flex; }

  .hero__inner { grid-template-columns: 1fr; gap: 48px; text-align: center; }
  .hero__subtitle { max-width: 100%; }
  .hero__actions { justify-content: center; }
  .hero__social-proof { justify-content: center; }
  .hero__visual { display: none; }

  .stats__grid { grid-template-columns: 1fr; gap: 24px; }
  .stats__item { border-right: none !important; border-bottom: 1px solid var(--regle); padding: 0 0 24px; }
  .stats__item:last-child { border-bottom: none; }

  .features__grid { grid-template-columns: 1fr; }
  .pricing__grid { grid-template-columns: 1fr; max-width: 400px; }
  .testimonials__grid { grid-template-columns: 1fr; }
  .blog__grid { grid-template-columns: 1fr; }
  .contact__grid { grid-template-columns: 1fr; gap: 40px; }
  .form__row { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .team__grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .section { padding: 64px 0; }
  .footer__grid { grid-template-columns: 1fr; }
  .hero__actions { flex-direction: column; align-items: center; }
  .btn-lg { width: 100%; justify-content: center; }
}