@import "variables.css";

/* Saaslys.com - Mobile first base styles (constitution VII) */

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

html {
  font-size: 100%;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  line-height: 1.5;
  color: var(--text-primary);
  background: var(--bg-base);
  position: relative;
  display: grid;
  grid-template-rows: auto 1fr auto;
}

/* Fond lumineux en pur CSS : dégradés radiaux (orange, or, ambre, teal) + flou */
body::before {
  content: "";
  position: fixed;
  inset: -30%;
  z-index: -2;
  background:
    radial-gradient(ellipse 120% 90% at 15% 15%, var(--gradient-green), transparent 40%),
    radial-gradient(ellipse 90% 120% at 85% 20%, var(--gradient-amber), transparent 65%),
    radial-gradient(ellipse 100% 80% at 50% 75%, var(--gradient-orange), transparent 55%),
    radial-gradient(ellipse 80% 100% at 75% 85%, var(--gradient-magenta), transparent 50%),
    radial-gradient(ellipse 70% 90% at 5% 55%, var(--gradient-lime), transparent 50%),
    radial-gradient(ellipse 60% 80% at 90% 60%, var(--gradient-teal), transparent 50%),
    radial-gradient(ellipse 85% 70% at 35% 40%, var(--gradient-olive), transparent 72%);
  filter: blur(50px);
  pointer-events: none;
}

/* Overlay pour lisibilité du texte (allégé pour un rendu plus clair) */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background: linear-gradient(
    180deg,
    var(--overlay-top) 0%,
    var(--overlay-mid) 35%,
    var(--overlay-mid2) 70%,
    var(--overlay-bottom) 100%
  );
  pointer-events: none;
}

/* Skip link for keyboard nav (WCAG) */
.skip-link {
  position: absolute;
  top: -2.5rem;
  left: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--btn-bg);
  color: var(--btn-text);
  text-decoration: none;
  z-index: 100;
  transition: top 0.2s;
}
.skip-link:focus {
  top: 0.5rem;
  outline: 2px solid currentColor;
  outline-offset: 2px;
}

/* Focus visible for keyboard nav (WCAG, constitution III) */
:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 2px;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 2px;
}

/* Layout utilities */
.container {
  width: 100%;
  max-width: 72rem;
  margin-inline: auto;
  padding-inline: 1rem;
}

/* Touch targets min 44×44px on interactive elements (constitution VII, WCAG) */
nav a,
button,
[role="button"],
.hero .cta a,
.contact-cta a,
.cta-block a {
  min-height: 44px;
  min-width: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1rem;
}

/* Base typography */
h1, h2, h3 {
  line-height: 1.2;
  margin-top: 0;
}

h1 { font-size: 1.75rem; }
h2 { font-size: 1.35rem; }
h3 { font-size: 1.15rem; }

/* Mobile first: base = 320px+ */
header, main, footer {
  padding-block: 1rem;
}

/* Pied de page : grille body = header (auto) | main (1fr) | footer (auto) → footer en bas de page */
main {
  min-height: 0;
}

/* Tablet and up */
@media (min-width: 768px) {
  h1 { font-size: 2.25rem; }
  h2 { font-size: 1.65rem; }
  .container { padding-inline: 1.5rem; }
}

/* Desktop */
@media (min-width: 1024px) {
  h1 { font-size: 2.5rem; }
  .container { padding-inline: 2rem; }
}

/* --- Index / Accueil (US1) --- */
.hero {
  padding-block: 1.5rem;
}

.hero .lead {
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

.hero .baseline {
  background: var(--surface-overlay);
  padding: 1rem;
  border-radius: 0.25rem;
  margin: 1rem 0;
  border: 1px solid var(--border-muted);
}

.hero .baseline p {
  margin: 0.5rem 0;
}

.hero .cta {
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.hero .cta a {
  min-height: 44px;
  min-width: 44px;
  padding: 0.75rem 1.25rem;
  background: var(--btn-bg);
  color: var(--btn-text);
  text-decoration: none;
  border-radius: 0.25rem;
}

.hero .cta a:hover {
  background: var(--btn-hover);
}

header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--border-color);
}

header a {
  color: var(--link-color);
}

header a:hover {
  color: var(--link-hover);
}

header img {
  display: block;
  height: 40px;
  width: auto;
}

footer {
  border-top: 1px solid var(--border-color);
  font-size: 0.9rem;
  color: var(--text-muted);
  text-align: center;
}

footer a {
  color: var(--footer-link);
}

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

/* --- Contact (US2) --- */
.contact-content {
  padding-block: 1.5rem;
}

.contact-cta a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  min-width: 44px;
  padding: 0.75rem 1.25rem;
  background: var(--btn-bg);
  color: var(--btn-text);
  text-decoration: none;
  border-radius: 0.25rem;
}

.contact-cta a:hover {
  background: var(--btn-hover);
}

/* --- Services (US3) --- */
main .lead {
  margin-bottom: 1.5rem;
}

.services-block {
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-muted);
}

.services-block:last-of-type {
  border-bottom: none;
}

.services-block h2 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.cta-block {
  margin-top: 2rem;
}

.cta-block a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  min-width: 44px;
  padding: 0.75rem 1.25rem;
  background: var(--btn-bg);
  color: var(--btn-text);
  text-decoration: none;
  border-radius: 0.25rem;
}

.cta-block a:hover {
  background: var(--btn-hover);
}

/* Contrast: text/buttons use palette (AA compliant). Touch targets enforced above. */