/* ============================================
   ciloon.fr — Minimal Lifestyle
   Palette : noir, blanc, gris subtil
   Fonts : Rubik (display), Inter (body)
   ============================================ */

/* ---------- Reset & Base ---------- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --color-bg: #fafafa;
  --color-surface: #ffffff;
  --color-text: #1a1a1a;
  --color-text-secondary: #6b6b6b;
  --color-accent: #111111;
  --color-border: #e5e5e5;
  --color-border-light: #f0f0f0;
  --font-display: 'Rubik', sans-serif;
  --font-body: 'Inter', sans-serif;
  --max-width: 820px;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;
  --space-2xl: 8rem;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  letter-spacing: -0.01em;
}

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

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

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.03em;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.2rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.2rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.5rem); }

p {
  max-width: 65ch;
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.section {
  padding: var(--space-xl) 0;
}

.section--tight {
  padding: var(--space-lg) 0;
}

/* ---------- Header / Nav ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(250, 250, 250, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-light);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}

.site-logo {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.04em;
  text-transform: lowercase;
}

.menu-toggle {
  background: none;
  border: none;
  cursor: pointer;
  width: 28px;
  height: 28px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  padding: 0;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--color-text);
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.menu-toggle.active span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}
.menu-toggle.active span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* Overlay Nav */
.nav-overlay {
  position: fixed;
  inset: 0;
  z-index: 99;
  background: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.nav-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.nav-overlay ul {
  list-style: none;
  text-align: center;
}

.nav-overlay li {
  margin-bottom: var(--space-sm);
}

.nav-overlay a {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2.4rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--color-text);
  transition: opacity 0.2s;
}

.nav-overlay a:hover {
  opacity: 0.5;
}

/* ---------- Hero / Accroche ---------- */
.hero {
  padding-top: calc(56px + var(--space-xl));
  padding-bottom: var(--space-lg);
  text-align: center;
}

.hero__label {
  font-family: var(--font-body);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
}

.hero h1 {
  margin-bottom: var(--space-md);
}

.hero__intro {
  color: var(--color-text-secondary);
  font-size: 1.05rem;
  line-height: 1.8;
  max-width: 55ch;
  margin: 0 auto;
}

.hero__image {
  margin-top: var(--space-lg);
  width: 100%;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  border-radius: 2px;
}

/* ---------- Section Intro ---------- */
.intro-section {
  border-top: 1px solid var(--color-border);
}

.intro-section p {
  color: var(--color-text-secondary);
  font-size: 1rem;
  margin-bottom: var(--space-sm);
  line-height: 1.8;
}

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

/* ---------- Articles List ---------- */
.articles-section {
  border-top: 1px solid var(--color-border);
}

.articles-section__heading {
  margin-bottom: var(--space-lg);
}

.article-entry {
  position: relative;
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--color-border);
  overflow: hidden;
}

.article-entry:first-child {
  border-top: 1px solid var(--color-border);
}

.article-entry__number {
  font-family: var(--font-display);
  font-size: clamp(5rem, 12vw, 8rem);
  font-weight: 700;
  line-height: 1;
  color: var(--color-text);
  opacity: 0.04;
  position: absolute;
  top: 50%;
  right: -0.5rem;
  transform: translateY(-50%);
  pointer-events: none;
  letter-spacing: -0.05em;
  user-select: none;
}

.article-entry__content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

.article-entry__image-wrap {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: 2px;
}

.article-entry__image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.article-entry:hover .article-entry__image-wrap img {
  transform: scale(1.03);
}

.article-entry__text {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.article-entry__title {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 3vw, 1.7rem);
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1.25;
  margin-bottom: var(--space-xs);
}

.article-entry__title a {
  transition: opacity 0.2s;
}

.article-entry__title a:hover {
  opacity: 0.6;
}

.article-entry__excerpt {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  line-height: 1.75;
  max-width: 58ch;
}

.article-entry__meta {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-secondary);
  opacity: 0.7;
  margin-top: var(--space-sm);
}

/* Desktop: image + text side by side for odd entries */
@media (min-width: 640px) {
  .article-entry__content {
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-lg);
    align-items: center;
  }

  .article-entry:nth-child(even) .article-entry__content {
    direction: rtl;
  }

  .article-entry:nth-child(even) .article-entry__content > * {
    direction: ltr;
  }
}

/* ---------- Newsletter / CTA ---------- */
.newsletter-section {
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.newsletter-section h2 {
  margin-bottom: var(--space-sm);
}

.newsletter-section p {
  color: var(--color-text-secondary);
  margin: 0 auto var(--space-md);
  max-width: 45ch;
}

.newsletter-form {
  display: flex;
  gap: var(--space-xs);
  max-width: 400px;
  margin: 0 auto;
}

.newsletter-form input[type="email"] {
  flex: 1;
  font-family: var(--font-body);
  font-size: 0.9rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: 2px;
  background: var(--color-surface);
  outline: none;
  transition: border-color 0.2s;
}

.newsletter-form input[type="email"]:focus {
  border-color: var(--color-accent);
}

.newsletter-form button {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 2px;
  background: var(--color-accent);
  color: var(--color-bg);
  cursor: pointer;
  white-space: nowrap;
  transition: opacity 0.2s;
}

.newsletter-form button:hover {
  opacity: 0.8;
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-md) 0;
  background: var(--color-accent);
  color: var(--color-bg);
}

.site-footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.04em;
  text-transform: lowercase;
  opacity: 0.9;
}

.footer-links {
  display: flex;
  gap: var(--space-md);
  list-style: none;
}

.footer-links a {
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  opacity: 0.6;
  transition: opacity 0.2s;
}

.footer-links a:hover {
  opacity: 1;
}

.footer-copy {
  width: 100%;
  text-align: center;
  font-size: 0.75rem;
  opacity: 0.4;
  margin-top: var(--space-sm);
}

/* ---------- Article Page (future) ---------- */
.article-page {
  padding-top: calc(56px + var(--space-lg));
  padding-bottom: var(--space-xl);
}

.article-page__header {
  margin-bottom: var(--space-lg);
  text-align: center;
}

.article-page__category {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
}

.article-page__title {
  font-size: clamp(2rem, 4.5vw, 3rem);
  margin-bottom: var(--space-sm);
}

.article-page__date {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.article-page__cover {
  width: 100%;
  aspect-ratio: 16 / 8;
  object-fit: cover;
  border-radius: 2px;
  margin-bottom: var(--space-lg);
}

.article-page__body {
  font-size: 1.05rem;
  line-height: 1.85;
}

.article-page__body h2 {
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
}

.article-page__body h3 {
  margin-top: var(--space-md);
  margin-bottom: var(--space-xs);
}

.article-page__body p {
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}

.article-page__body ul,
.article-page__body ol {
  margin-bottom: var(--space-sm);
  padding-left: var(--space-md);
}

.article-page__body li {
  margin-bottom: 0.4rem;
}

.article-page__body blockquote {
  border-left: 2px solid var(--color-border);
  padding-left: var(--space-md);
  margin: var(--space-md) 0;
  color: var(--color-text-secondary);
  font-style: italic;
}

.article-page__body img {
  border-radius: 2px;
  margin: var(--space-md) 0;
}

/* Breadcrumb */
.breadcrumb {
  font-size: 0.78rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
}

.breadcrumb a {
  opacity: 0.7;
  transition: opacity 0.2s;
}

.breadcrumb a:hover {
  opacity: 1;
}

.breadcrumb__sep {
  margin: 0 0.4rem;
  opacity: 0.4;
}

/* ---------- Responsive ---------- */
@media (max-width: 639px) {
  .newsletter-form {
    flex-direction: column;
  }

  .site-footer .container {
    flex-direction: column;
    text-align: center;
  }

  .footer-links {
    justify-content: center;
  }
}