/* ============================================================================
   PETROBRIEFING — feuille de styles
   Direction : « le pupitre de veille ». Bleu abyssal (la nuit de garde),
   papier froid, laiton d'instrument. La ligne de dépêche monospace porte
   partout le rythme de parution : c'est la signature du site.
   ========================================================================= */

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&family=IBM+Plex+Sans:wght@400;500;600&family=Newsreader:ital,opsz,wght@0,6..72,400;0,6..72,500;0,6..72,600;1,6..72,400&display=swap');

:root {
  /* Plages sombres : bleu de nuit habité plutôt que noir d'encre.
     Assez clair pour respirer, assez profond pour rester exclusif. */
  --abyss:  #1A3350;
  --navy:   #22405E;
  --slate:  #43596E;
  --paper:  #F1F1EE;
  --card:   #FFFFFF;
  --brass:  #8A6520;   /* accent typographique sur fond clair */
  --brass-fill: #A97E2E; /* remplissage de bouton, indépendant du fond */
  --teal:   #16626B;
  --alert:  #B03A24;

  --rule:   rgba(7, 19, 31, 0.14);
  --rule-dk: rgba(241, 241, 238, 0.20);

  --display: 'Newsreader', Georgia, 'Times New Roman', serif;
  --body:    'IBM Plex Sans', system-ui, -apple-system, sans-serif;
  --mono:    'IBM Plex Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  --wrap: 1140px;
  --gut:  clamp(1.25rem, 4vw, 3rem);
}

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

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--abyss);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gut); }

/* ---------- Ligne de dépêche : la signature ---------- */
.dateline {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  align-items: center;
}
.dateline--dark { color: rgba(241, 241, 238, 0.62); }
.dateline b { font-weight: 600; color: var(--brass); }
.dateline .sep { opacity: 0.4; }

/* ---------- En-tête ---------- */
.masthead {
  position: sticky; top: 0; z-index: 50;
  background: rgba(241, 241, 238, 0.96);
  border-bottom: 1px solid var(--rule);
  backdrop-filter: saturate(140%) blur(8px);
}
.masthead__in {
  display: flex; align-items: center; gap: 1.5rem;
  min-height: 96px;
}
.masthead__logo img { height: 54px; width: auto; }
.masthead__nav {
  margin-left: auto;
  display: flex; align-items: center; gap: 1.6rem;
  font-size: 0.88rem;
}
.masthead__nav a { color: var(--navy); text-decoration: none; }
.masthead__nav a:hover { color: var(--brass); }
.lang { font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.1em; color: var(--slate); }
.lang a { color: var(--navy); text-decoration: none; }
.lang a:hover { color: var(--brass); }
.lang .on { color: var(--brass); }
@media (max-width: 860px) { .masthead__logo img { height: 44px; } }
@media (max-width: 560px) { .masthead__logo img { height: 38px; } .masthead__in { min-height: 76px; } }
@media (max-width: 860px) { .masthead__nav .hide-sm { display: none; } }

/* ---------- Boutons ---------- */
.btn {
  display: inline-block;
  font-family: var(--body); font-weight: 500; font-size: 0.95rem;
  padding: 0.82rem 1.6rem;
  border: 1px solid transparent; border-radius: 2px;
  text-decoration: none; cursor: pointer;
  transition: background .18s ease, color .18s ease, border-color .18s ease;
}
.btn--primary { background: var(--brass-fill); color: #0E1B29; font-weight: 600; }
.btn--primary:hover { background: #BE8F35; }
.btn--ghost { border-color: rgba(241,241,238,0.32); color: #F1F1EE; }
.btn--ghost:hover { border-color: var(--brass); color: var(--brass); }
.btn--dark { background: var(--abyss); color: var(--paper); }
.btn--dark:hover { background: var(--navy); }
.btn--small { padding: 0.6rem 1.15rem; font-size: 0.86rem; }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--brass); outline-offset: 3px;
}

/* ---------- Sections ---------- */
/* Sur fond sombre, le laiton monte d'un cran pour garder un contraste net. */
.hero, .band--dark, .band--navy, .foot { --brass: #D5A544; }

.band { padding-block: clamp(3.5rem, 7vw, 6rem); }
.band--dark { background: var(--abyss); color: var(--paper); }
.band--navy { background: var(--navy); color: var(--paper); }
.band--rule { border-top: 1px solid var(--rule); }

.eyebrow {
  font-family: var(--mono); font-size: 0.72rem;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--brass); margin: 0 0 1rem;
}

h1, h2, h3 { font-family: var(--display); font-weight: 400; letter-spacing: -0.015em; }
h1 { font-size: clamp(2.4rem, 6vw, 4.1rem); line-height: 1.06; margin: 0.4rem 0 1.4rem; }
h2 { font-size: clamp(1.85rem, 3.9vw, 2.9rem); line-height: 1.14; margin: 0 0 1.5rem; max-width: 22ch; }
h3 { font-size: 1.3rem; line-height: 1.28; margin: 0 0 0.5rem; }
h1 em, h2 em { font-style: italic; color: var(--brass); }
.band--dark h1 em, .band--dark h2 em, .band--navy h2 em { color: var(--brass); }

.lede { font-size: 1.12rem; max-width: 62ch; color: var(--slate); }
.band--dark .lede, .band--navy .lede { color: rgba(241,241,238,0.80); }

/* ---------- Héros ---------- */
.hero { background: var(--abyss); color: var(--paper); padding-block: clamp(3rem, 7vw, 5.5rem) clamp(3rem, 6vw, 5rem); }
.hero__dispatch {
  border: 1px solid var(--rule-dk);
  border-left: 3px solid var(--brass);
  padding: 0.9rem 1.1rem;
  margin-bottom: 2.2rem;
  max-width: 46rem;
}
.hero h1 { max-width: 17ch; }
.hero .lede { font-size: 1.18rem; max-width: 54ch; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 0.9rem; margin: 2.2rem 0 1.5rem; }

/* ---------- Grilles ---------- */
.grid { display: grid; gap: 1.5rem; }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); }

.feat { border-top: 2px solid var(--brass); padding-top: 1.1rem; }
.feat h3 { font-size: 1.16rem; }
.feat p { margin: 0; color: var(--slate); font-size: 0.97rem; }
.band--dark .feat p { color: rgba(241,241,238,0.78); }

/* ---------- Public visé ---------- */
.tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.8rem; padding: 0; list-style: none; }
.tags li {
  font-family: var(--mono); font-size: 0.76rem; letter-spacing: 0.06em;
  border: 1px solid var(--rule); border-radius: 2px;
  padding: 0.42rem 0.8rem; color: var(--slate);
}
.band--navy .tags li { border-color: var(--rule-dk); color: rgba(241,241,238,0.8); }

blockquote.pull {
  font-family: var(--display); font-size: clamp(1.2rem, 2.4vw, 1.55rem);
  line-height: 1.42; font-style: italic;
  border-left: 3px solid var(--brass);
  margin: 2rem 0 0; padding: 0.3rem 0 0.3rem 1.4rem; max-width: 46ch;
}

/* ---------- Format en deux parties ---------- */
.part { display: grid; grid-template-columns: 4.5rem 1fr; gap: 1.5rem; align-items: start; }
.part + .part { margin-top: 2.2rem; padding-top: 2.2rem; border-top: 1px solid var(--rule); }
.band--dark .part + .part { border-color: var(--rule-dk); }
.part__num {
  font-family: var(--display); font-size: 2.6rem; line-height: 1;
  color: var(--brass); font-style: italic;
}
.part__time { font-family: var(--mono); font-size: 0.76rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--brass); }
@media (max-width: 620px) { .part { grid-template-columns: 1fr; gap: 0.5rem; } }

/* ---------- Extraits ---------- */
.sample { background: var(--card); border: 1px solid var(--rule); }
.sample img { border-bottom: 1px solid var(--rule); }
.sample__cap { padding: 1rem 1.2rem 1.25rem; }
.sample__cap p { margin: 0.35rem 0 0; font-size: 0.92rem; color: var(--slate); }

/* ---------- Tarifs ---------- */
.plan {
  background: var(--card); border: 1px solid var(--rule);
  border-top: 3px solid var(--teal);
  padding: clamp(1.5rem, 3vw, 2.2rem); display: flex; flex-direction: column;
}
.plan--energy { border-top-color: var(--brass); }
.plan h3 { font-size: 1.55rem; margin-bottom: 0.4rem; }
.plan__desc { color: var(--slate); font-size: 0.97rem; margin: 0 0 1.2rem; }
.plan__trial {
  font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--teal);
  border-block: 1px solid var(--rule); padding: 0.6rem 0; margin-bottom: 1.2rem;
}
.plan--energy .plan__trial { color: var(--brass); }
.plan table { width: 100%; border-collapse: collapse; font-size: 0.93rem; margin-bottom: 1.3rem; }
.plan th {
  text-align: left; font-family: var(--mono); font-weight: 500;
  font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--slate); border-bottom: 1px solid var(--rule); padding: 0 0 0.5rem;
}
.plan td { padding: 0.62rem 0; border-bottom: 1px solid var(--rule); }
.plan td:nth-child(2), .plan td:nth-child(3) { font-family: var(--mono); text-align: right; white-space: nowrap; }
.plan td:nth-child(3) { color: var(--slate); }
.plan th:nth-child(2), .plan th:nth-child(3) { text-align: right; }
.plan__note { font-size: 0.85rem; color: var(--slate); margin: 0 0 1.4rem; }
.plan .btn { margin-top: auto; text-align: center; }

/* ---------- Rythme ---------- */
.cadence { display: flex; flex-wrap: wrap; gap: 0.9rem; margin-top: 2rem; }
.cadence div {
  font-family: var(--mono); font-size: 0.82rem; letter-spacing: 0.12em;
  text-transform: uppercase; border: 1px solid var(--rule-dk);
  padding: 0.75rem 1.3rem; color: var(--paper);
}
.cadence div b { color: var(--brass); font-weight: 600; }

/* ---------- Prose (À propos, FAQ, CGU) ---------- */
.prose { max-width: 68ch; }
.prose h2 { font-size: clamp(1.5rem, 3vw, 2rem); margin-top: 2.6rem; max-width: none; }
.prose h3 { font-size: 1.18rem; margin-top: 1.9rem; }
.prose p, .prose li { color: #23384B; }
.prose ul { padding-left: 1.15rem; }
.prose li { margin-bottom: 0.5rem; }
.prose strong { font-weight: 600; }
.prose__meta { font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.08em; color: var(--slate); text-transform: uppercase; }

.qa { border-top: 1px solid var(--rule); padding-top: 1.4rem; margin-top: 1.4rem; }
.qa h3 { font-family: var(--display); font-size: 1.24rem; margin-bottom: 0.6rem; }
.qa p:last-child { margin-bottom: 0; }

/* ---------- Pied de page ---------- */
.foot { background: var(--abyss); color: rgba(241,241,238,0.75); padding-block: 3rem 2.5rem; font-size: 0.9rem; }
.foot img { height: 46px; margin-bottom: 1.5rem; }
.foot a { color: rgba(241,241,238,0.85); }
.foot__links { display: flex; flex-wrap: wrap; gap: 1.4rem; margin-top: 1.4rem; padding-top: 1.4rem; border-top: 1px solid var(--rule-dk); }
/* Sceau : le même badge que celui qui coiffe chaque veille — il fait le lien
   entre le site et le document que l'abonné reçoit. */
.foot__seal { display: flex; align-items: center; gap: 0.9rem; margin-top: 1.8rem; }
.foot__seal img { height: 44px; width: auto; margin: 0; border-radius: 8px; }
.foot__seal span { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: rgba(241,241,238,0.55); }
.foot__legal { max-width: 70ch; font-size: 0.82rem; color: rgba(241,241,238,0.5); }

.skip {
  position: absolute; left: -9999px;
  background: var(--brass); color: var(--abyss); padding: 0.7rem 1.2rem; z-index: 100;
}
.skip:focus { left: 1rem; top: 0.6rem; }