/* ============================================================
   Seaclic – GitHub Pages Stylesheet
   Tema ispirato al codename "Sunset"
   ============================================================ */

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

:root {
  --clr-bg:        #FAFAFA;
  --clr-surface:   #FFFFFF;
  --clr-surface-2: #F3F0FF;
  --clr-text:      #1E1E30;
  --clr-text-mid:  #444466;
  --clr-text-light:#6B6B8D;
  --clr-primary:   #5C4DFF;
  --clr-primary-l: #8B7FFF;
  --clr-accent:    #E85D26;
  --clr-accent-l:  #FF9A6C;
  --clr-sunset-1:  #1A1040;
  --clr-sunset-2:  #4A2080;
  --clr-sunset-3:  #C04070;
  --clr-sunset-4:  #FF8040;
  --clr-sunset-5:  #FFD080;
  --clr-success:   #28A745;
  --clr-warning:   #FFB020;
  --clr-danger:    #DC3545;
  --clr-border:    #E0DDF0;
  --radius:        12px;
  --radius-sm:     8px;
  --shadow:        0 2px 12px rgba(30,30,48,0.08);
  --shadow-lg:     0 8px 32px rgba(30,30,48,0.12);
  --font:          'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-mono:     'Cascadia Code', 'Fira Code', 'Consolas', monospace;
  --max-w:         960px;
  --nav-h:         64px;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font);
  color: var(--clr-text);
  background: var(--clr-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ── Skip link (WCAG 2.4.1) ────────────────────────────────── */
.skip-link {
  position: absolute; top: -100%; left: 50%; transform: translateX(-50%);
  background: var(--clr-primary); color: #fff;
  padding: .75rem 1.5rem; border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  font-weight: 700; font-size: 1rem; z-index: 200;
  transition: top .2s;
}
.skip-link:focus { top: 0; }

/* ── Focus visible (WCAG 2.4.7) ────────────────────────────── */
:focus-visible {
  outline: 3px solid var(--clr-primary);
  outline-offset: 2px;
}
.nav__links a:focus-visible,
.hero__cta:focus-visible,
.nav__brand:focus-visible,
.nav__asphi:focus-visible { outline-color: var(--clr-sunset-5); }

a { color: var(--clr-primary); text-decoration: none; transition: color .2s; }
a:hover { color: var(--clr-accent); }

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

/* ── Typography ────────────────────────────────────────────── */
h1, h2, h3, h4 { line-height: 1.25; font-weight: 700; }
h1 { font-size: 2.5rem; }
h2 { font-size: 1.75rem; margin-bottom: .6em; }
h3 { font-size: 1.25rem; margin-bottom: .4em; }
p  { margin-bottom: 1em; }
ul, ol { margin-bottom: 1em; padding-left: 1.5em; }
li { margin-bottom: .4em; }

/* ── Navigation ────────────────────────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: var(--clr-sunset-1);
  color: #fff;
  height: var(--nav-h);
  display: flex; align-items: center;
  box-shadow: 0 2px 8px rgba(0,0,0,.2);
}
.nav__inner {
  max-width: var(--max-w);
  width: 100%; margin: 0 auto;
  padding: 0 1.5rem;
  display: flex; align-items: center; justify-content: space-between;
}
.nav__brand {
  font-size: 1.3rem; font-weight: 800;
  color: #fff; display: flex; align-items: center; gap: .5rem;
}
.nav__brand span { color: var(--clr-sunset-5); }
.nav__asphi { display: flex; align-items: center; flex-shrink: 0; }
.nav__logo { height: 38px; width: auto; }
.nav__links { display: flex; gap: .25rem; list-style: none; }
.nav__links a {
  color: rgba(255,255,255,.85); padding: .4rem .75rem; border-radius: var(--radius-sm);
  font-size: .9rem; font-weight: 500; transition: background .2s, color .2s;
}
.nav__links a:hover,
.nav__links a.active { background: rgba(255,255,255,.12); color: #fff; }

/* Hamburger (mobile) */
.nav__toggle {
  display: none; background: none; border: none; color: #fff;
  font-size: 1.5rem; cursor: pointer; padding: .25rem;
}

/* ── Layout helpers ────────────────────────────────────────── */
.container {
  max-width: var(--max-w);
  margin: 0 auto; padding: 2.5rem 1.5rem;
}
.section { margin-bottom: 3rem; }
.text-center { text-align: center; }
.text-muted { color: var(--clr-text-light); }

/* ── Hero ──────────────────────────────────────────────────── */
.hero {
  background: linear-gradient(1deg, var(--clr-sunset-1), var(--clr-sunset-2) 85%, var(--clr-sunset-3) 90%, var(--clr-sunset-4));
  color: #fff; text-align: center;
  padding: 5rem 1.5rem 4rem;
}
.hero h1 { font-size: 3rem; margin-bottom: .3em; }
.hero h1 span { color: var(--clr-sunset-5); }
.hero__sub {
  font-size: 1.2rem; max-width: 640px; margin: 0 auto 2rem;
  line-height: 1.6; text-align: left;
}
.hero__badges { display: flex; gap: .75rem; justify-content: center; flex-wrap: wrap; margin-bottom: 2rem; }
.badge {
  display: inline-flex; align-items: center; gap: .35rem;
  background: rgba(255,255,255,.15); backdrop-filter: blur(4px);
  padding: .35rem .85rem; border-radius: 999px;
  font-size: .85rem; font-weight: 600;
}
.hero__cta {
  display: inline-flex; align-items: center; gap: .5rem;
  background: var(--clr-accent); color: #fff;
  padding: .85rem 2rem; border-radius: 999px;
  font-weight: 700; font-size: 1.05rem;
  font-size: 14pt;
  font-weight: bold;
  transition: background .2s, transform .15s;
  box-shadow: 0 4px 16px rgba(255,107,53,.35);
}
.hero__cta:hover { background: #e85a28; color: #fff; transform: translateY(-1px); }

/* ── Cards ─────────────────────────────────────────────────── */
.cards { display: grid; gap: 1.5rem; }
.cards--2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.cards--3 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.cards--4 { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.cards--5 { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
.card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: 1.75rem;
  box-shadow: var(--shadow);
  transition: transform .2s, box-shadow .2s;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.card__icon { font-size: 2.2rem; margin-bottom: .75rem; }
.card__title { font-size: 1.1rem; font-weight: 700; margin-bottom: .4rem; }
.card__text { color: var(--clr-text-mid); font-size: .95rem; }

/* ── Feature rows (alternating image+text) ─────────────────── */
.feature-row {
  display: flex; gap: 2.5rem; align-items: center; margin-bottom: 3rem;
}
.feature-row--reverse { flex-direction: row-reverse; }
.feature-row__content { flex: 1; }
.feature-row__media {
  flex: 1; background: var(--clr-surface-2);
  border-radius: var(--radius); padding: 2rem;
  display: flex; align-items: center; justify-content: center;
  min-height: 200px; font-size: 4rem;
}

/* ── Steps ─────────────────────────────────────────────────── */
.steps { counter-reset: step; }
.step {
  display: flex; gap: 1.25rem; margin-bottom: 1.75rem;
  align-items: flex-start;
}
.step::before {
  counter-increment: step;
  content: counter(step);
  flex-shrink: 0;
  width: 2.5rem; height: 2.5rem;
  background: var(--clr-primary);
  color: #fff; font-weight: 800; font-size: 1.1rem;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
}
.step__body h3, .step__body h4 { margin-bottom: .25rem; }
.step__body p { color: var(--clr-text-mid); margin-bottom: 0; }

/* ── Info boxes ────────────────────────────────────────────── */
.info-box {
  border-left: 4px solid var(--clr-primary);
  background: var(--clr-surface-2);
  padding: 1rem 1.25rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-bottom: 1.5rem;
}
.info-box--warning { border-color: var(--clr-warning); background: #FFF8E8; }
.info-box--success { border-color: var(--clr-success); background: #EAFFF0; }
.info-box--danger  { border-color: var(--clr-danger);  background: #FFF0F0; }
.info-box strong { display: block; margin-bottom: .25rem; }

/* ── Tables ────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; margin-bottom: 1.5rem; }
table {
  width: 100%; border-collapse: collapse;
  background: var(--clr-surface);
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow);
}
thead { background: var(--clr-sunset-1); color: #fff; }
th, td { padding: .75rem 1rem; text-align: left; font-size: .95rem; }
tbody tr { border-bottom: 1px solid var(--clr-border); }
tbody tr:hover { background: var(--clr-surface-2); }

/* ── Accordion / FAQ ───────────────────────────────────────── */
.accordion { margin-bottom: 1.5rem; }
.accordion details {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  margin-bottom: .5rem;
  box-shadow: var(--shadow);
}
.accordion summary {
  padding: 1rem 1.25rem;
  font-weight: 600; cursor: pointer;
  list-style: none; display: flex; align-items: center; gap: .5rem;
}
.accordion summary::before { content: '▸'; transition: transform .2s; }
.accordion details[open] summary::before { transform: rotate(90deg); }
.accordion .acc-body { padding: 0 1.25rem 1rem; color: var(--clr-text-mid); }

/* ── Keyboard shortcut badges ──────────────────────────────── */
kbd {
  display: inline-block; padding: .15rem .5rem;
  background: #EEEDF5; border: 1px solid var(--clr-border);
  border-radius: 4px; font-family: var(--font-mono);
  font-size: .85rem; font-weight: 600;
  box-shadow: 0 1px 0 rgba(0,0,0,.08);
}

/* ── Footer ────────────────────────────────────────────────── */
.footer {
  background: var(--clr-sunset-1); color: rgba(255,255,255,.85);
  text-align: center; padding: 2rem 1.5rem;
  font-size: .9rem; margin-top: 3rem;
}
.footer a { color: var(--clr-sunset-5); }
.footer a:hover { color: #fff; }

/* ── Page header (inner pages) ─────────────────────────────── */
.page-header {
  background: linear-gradient(135deg, var(--clr-sunset-1), var(--clr-sunset-2));
  color: #fff; padding: 3rem 1.5rem 2.5rem; text-align: center;
}
.page-header h1 { margin-bottom: .3em; }
.page-header p { max-width: 600px; margin: 0 auto; font-size: 1.1rem; text-align: left; }

/* ── Breadcrumb ────────────────────────────────────────────── */
.breadcrumb {
  font-size: .85rem; margin-bottom: 1.5rem;
  color: var(--clr-text-light);
}
.breadcrumb a { color: var(--clr-primary); }

/* ── Side navigation (guide pages) ─────────────────────────── */
.layout-sidebar {
  display: grid; gap: 2rem;
  grid-template-columns: 220px 1fr;
}
.sidebar {
  position: sticky; top: calc(var(--nav-h) + 1.5rem); align-self: start;
}
.sidebar__nav { list-style: none; padding: 0; }
.sidebar__nav a {
  display: block; padding: .4rem .75rem; border-radius: var(--radius-sm);
  font-size: .9rem; color: var(--clr-text-mid);
  transition: background .2s, color .2s;
}
.sidebar__nav a:hover,
.sidebar__nav a.active { background: var(--clr-surface-2); color: var(--clr-primary); }
.sidebar__nav .sub { padding-left: 1.25rem; font-size: .85rem; }

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  .hero { padding: 3rem 1rem 2.5rem; }
  .hero h1 { font-size: 2.2rem; }

  .nav__links {
    display: none; flex-direction: column;
    position: absolute; top: var(--nav-h); left: 0; right: 0;
    background: var(--clr-sunset-1); padding: 1rem;
    box-shadow: 0 4px 12px rgba(0,0,0,.3);
  }
  .nav__links.open { display: flex; }
  .nav__toggle { display: block; }

  .layout-sidebar { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .sidebar__nav {
    display: flex; flex-wrap: wrap; gap: .25rem;
    border-bottom: 1px solid var(--clr-border); padding-bottom: .75rem; margin-bottom: 1rem;
  }

  .feature-row, .feature-row--reverse { flex-direction: column; }
  .cards--4 { grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.7rem; }
  .hero__sub { font-size: 1rem; }
  .container { padding: 1.5rem 1rem; }
}