/*============================================================+
  assist.intheeu.com - Main Stylesheet
  Deploy to: /assets/css/assist.css
  (c) 2026 ae Aeonian Engineering Limited - Hong Kong
  (c) 2026 WIDE di D. Papa - Naples - Italy
+============================================================*/

/* ── Variables ── */
html {
  --bg-page:  #0e0e0e;
  --bg-sect1: #141414;
  --bg-sect2: #0e0e0e;
  --tx-main:  #f0ede8;
  --accent:   #3299b3;
  --border-s: rgba(255,255,255,0.04);
  --border-m: rgba(255,255,255,0.07);
  --border-l: rgba(255,255,255,0.10);
  --card-bg:  rgba(255,255,255,0.03);
  --card-bd:  rgba(255,255,255,0.07);
  --scroll-bg:#0e0e0e;
  --font-display: 'Barlow Condensed', Georgia, serif;
  --font-body:    'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  --font-mono:    'JetBrains Mono', monospace;
}

html[data-theme="light"] {
  --bg-page:  #f0f8f9;
  --bg-sect1: #ebe8e1;
  --bg-sect2: #f2efe9;
  --tx-main:  #1a1a1a;
  --accent:   #21b2cc;
  --border-s: rgba(0,0,0,0.06);
  --border-m: rgba(0,0,0,0.10);
  --border-l: rgba(0,0,0,0.16);
  --card-bg:  rgba(0,0,0,0.04);
  --card-bd:  rgba(0,0,0,0.10);
  --scroll-bg:#f2efe9;
}

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

body {
  font-family: var(--font-body);
  background: var(--bg-page);
  color: var(--tx-main);
  overflow: hidden;
  height: 100svh;
}

/* ── Scroll wrap ── */
.pi-scroll-wrap {
  height: 100svh;
  overflow-y: hidden;
  background: var(--scroll-bg);
}

.snap-section {
  height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 2rem;
}

/* ── Corner nav ── */
.c-nav {
  position: fixed;
  top: 28px;
  right: 32px;
  z-index: 200;
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

.c-nav a {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--tx-main);
  opacity: 0.4;
  text-decoration: none;
  transition: opacity 0.2s;
}

.c-nav a:hover { opacity: 1; }

/* Urgency bar */
.pi-hero__urgency {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  opacity: 0.85;
  white-space: nowrap;
}

.urgency-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* Lang dropdown */
.lang-wrap { position: relative; }

.lang-btn {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--tx-main);
  opacity: 0.4;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  transition: opacity 0.2s;
}

.lang-btn:hover { opacity: 1; }

.lang-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--bg-sect1);
  border: 1px solid var(--border-m);
  border-radius: 6px;
  padding: 0.5rem 0;
  min-width: 160px;
  max-height: 320px;
  overflow-y: auto;
  z-index: 9999;
}

.lang-dropdown.open { display: block; }

.lang-dropdown a {
  display: block;
  padding: 0.4rem 1rem;
  font-size: 0.78rem;
  color: var(--tx-main);
  text-decoration: none;
  opacity: 0.6;
  font-family: var(--font-body);
}

.lang-dropdown a:hover,
.lang-dropdown a.active { opacity: 1; color: var(--accent); }

.c-nav__theme {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--tx-main);
  opacity: 0.4;
  font-size: 1rem;
  transition: opacity 0.2s;
  line-height: 1;
}

.c-nav__theme:hover { opacity: 1; }

/* ── Hero ── */
.pi-hero {
  background: var(--bg-page);
  flex-direction: column;
  text-align: left;
  overflow: hidden;
}

/* Subtle grid pattern */
.pi-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(50,153,179,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(50,153,179,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

html[data-theme="light"] .pi-hero::before {
  background-image:
    linear-gradient(rgba(33,178,204,0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(33,178,204,0.07) 1px, transparent 1px);
}

.pi-hero > * { position: relative; z-index: 1; }

.pi-hero__layout {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4rem;
  max-width: 1100px;
  width: 100%;
  align-items: center;
}

.pi-hero__content { max-width: 560px; }

.pi-hero__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  opacity: 0.4;
  margin-bottom: 1.2rem;
}

.pi-hero__title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 6.5rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  line-height: 1;
  margin-bottom: 1.4rem;
}

.pi-hero__title span { color: var(--accent); }

.pi-hero__sub {
  font-size: 1rem;
  line-height: 1.8;
  opacity: 0.6;
  max-width: 580px;
  margin: 0 auto 2rem;
}

.pi-hero__cta {
  display: flex;
  gap: 1rem;
  justify-content: flex-start;
  flex-wrap: wrap;
}

.cta-primary {
  display: inline-block;
  padding: 0.8rem 2rem;
  background: var(--accent);
  color: #0e0e0e;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: 4px;
  font-weight: 700;
  transition: opacity 0.2s;
}

.cta-primary:hover { opacity: 0.85; }

.cta-ghost {
  display: inline-block;
  padding: 0.8rem 2rem;
  border: 1px solid var(--border-l);
  color: var(--tx-main);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: 4px;
  opacity: 0.6;
  transition: opacity 0.2s;
}

.cta-ghost:hover { opacity: 1; }

.pi-scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  opacity: 0.25;
}

/* ── Case sections ── */
.pi-case { text-align: left; }

.pi-case__wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  max-width: 1100px;
  width: 100%;
  align-items: center;
}

.pi-case__wrap.flip { direction: rtl; }
.pi-case__wrap.flip > * { direction: ltr; }

.pi-case__sector {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  opacity: 0.4;
  margin-bottom: 1rem;
}

.pi-case__headline {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  line-height: 1.05;
  margin-bottom: 1.2rem;
}

.pi-case__text {
  font-size: 0.88rem;
  line-height: 1.85;
  opacity: 0.6;
  margin-bottom: 1.2rem;
}

.pi-case__module {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  opacity: 0.35;
}

/* Terminal block — always dark even in light mode */
.pi-term {
  background: #111;
  border: 1px solid rgba(50,153,179,0.18);
  border-radius: 8px;
  padding: 1.6rem;
  font-family: var(--font-mono);
  font-size: 0.79rem;
  line-height: 1.9;
  color: #f0ede8;
}

.pi-term .d { opacity: 0.4; color: #f0ede8; }
.pi-term .k { color: #f0ede8; }
.pi-term .a { color: var(--accent); }
.pi-term .g { color: #6fcf97; letter-spacing: 0.1em; }

/* ── Who section ── */
.pi-who {
  background: var(--bg-sect2);
  flex-direction: column;
  text-align: center;
}

.pi-who__inner { max-width: 1000px; width: 100%; }

.pi-who__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  opacity: 0.4;
  margin-bottom: 1rem;
}

.pi-who__headline {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin-bottom: 2.5rem;
}

.pi-who__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  text-align: left;
}

.pi-who__card {
  background: var(--card-bg);
  border: 1px solid var(--card-bd);
  border-radius: 8px;
  padding: 1.6rem;
}

.pi-who__card-label {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.pi-who__card-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 0.5rem;
}

.pi-who__card-text {
  font-size: 0.83rem;
  line-height: 1.75;
  opacity: 0.55;
}

/* ── Contact form section ── */
.pi-register {
  background: var(--bg-sect1);
  flex-direction: column;
  justify-content: center;
  align-items: center;
  overflow-y: auto;
  position: relative;
}

.pi-register__inner {
  width: 100%;
  max-width: 520px;
  padding: 1rem 0;
}

.pi-register__sub {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  opacity: 0.4;
  margin-bottom: 0.6rem;
}

.pi-register__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  line-height: 1.05;
  margin-bottom: 0.5rem;
}

.pi-register__desc {
  font-size: 0.85rem;
  line-height: 1.75;
  opacity: 0.5;
  margin-bottom: 1.6rem;
}

.pi-field { margin-bottom: 1rem; }

.pi-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  opacity: 0.4;
  margin-bottom: 0.35rem;
}

.pi-input {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border-m);
  padding: 0.55rem 0;
  font-family: var(--font-body);
  font-size: 0.88rem;
  color: var(--tx-main);
  outline: none;
  transition: border-color 0.2s;
  resize: none;
}

.pi-input:focus { border-bottom-color: var(--accent); }
.pi-input::placeholder { opacity: 0.22; color: var(--tx-main); }
.pi-textarea { display: block; line-height: 1.6; }

.pi-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
}

.pi-field--check { margin-top: 0.4rem; }

.pi-check-label {
  display: flex;
  gap: 0.7rem;
  align-items: flex-start;
  font-size: 0.75rem;
  line-height: 1.6;
  opacity: 0.55;
  cursor: pointer;
}

.pi-check-label input[type="checkbox"] {
  flex-shrink: 0;
  margin-top: 0.2rem;
  accent-color: var(--accent);
  width: 14px;
  height: 14px;
}

.pi-check-label a { color: var(--accent); text-decoration: none; }

.pi-error {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.06em;
  color: #e05252;
  margin-top: 0.25rem;
  display: none;
}

.pi-error--global { margin-top: 0.5rem; margin-bottom: 0.5rem; }

.pi-submit {
  width: 100%;
  margin-top: 1.2rem;
  padding: 0.9rem;
  background: var(--accent);
  color: #0e0e0e;
  border: none;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 700;
  cursor: pointer;
  border-radius: 4px;
  transition: opacity 0.2s;
}

.pi-submit:hover { opacity: 0.85; }
.pi-submit:disabled { opacity: 0.5; cursor: not-allowed; }

.pi-success {
  display: none;
  text-align: center;
  padding: 2rem 0;
}

.pi-success__title {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 0.5rem;
}

.pi-success__sub {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.4;
}

/* ── Footer ── */
.pi-footer {
  padding: 24px 48px;
  border-top: 1px solid var(--border-s);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.pi-footer p,
.pi-footer a {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.28;
  color: inherit;
  text-decoration: none;
  transition: opacity 0.2s;
}

.pi-footer a:hover { opacity: 0.8; }

.pi-footer__links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.pi-footer--abs {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: transparent;
  border-top: 1px solid var(--border-s);
}

/* ── Light mode overrides ── */
html[data-theme="light"] .pi-case__text     { opacity: 0.6; }
html[data-theme="light"] .pi-case__headline { opacity: 1; }
html[data-theme="light"] .pi-case__sector   { opacity: 0.4; }
html[data-theme="light"] .pi-case__module   { opacity: 0.4; }

.guide-screen {
  margin: 2rem 0;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border-m);
  box-shadow: 0 8px 32px rgba(0,0,0,0.28);
}

.guide-screen img {
  display: block;
  width: 100%;
  height: auto;
}

/* ── Guide / vademecum pages ── */
body.guide-page {
  overflow: auto;
  height: auto;
}

.guide-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 56px;
  background: var(--bg-page);
  border-bottom: 1px solid var(--border-s);
  display: flex;
  align-items: center;
  padding: 0 2rem;
  gap: 1.5rem;
  z-index: 100;
  flex-wrap: nowrap;
  overflow-x: auto;
}

.guide-nav__home {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  text-decoration: none;
  white-space: nowrap;
  flex-shrink: 0;
  margin-right: 0.5rem;
}

.guide-nav__sep {
  opacity: 0.15;
  font-size: 0.8rem;
  flex-shrink: 0;
}

.guide-nav a:not(.guide-nav__home) {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--tx-main);
  opacity: 0.4;
  text-decoration: none;
  white-space: nowrap;
  flex-shrink: 0;
  transition: opacity 0.2s;
}

.guide-nav a:not(.guide-nav__home):hover,
.guide-nav a.active { opacity: 1; color: var(--accent); }

.guide-wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 6rem 2rem 6rem;
}

.guide-wrap h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  line-height: 1;
  margin-bottom: 0.4rem;
}

.guide-wrap .guide-meta {
  font-family: var(--font-mono);
  font-size: 0.56rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  opacity: 0.32;
  margin-bottom: 3rem;
}

.guide-wrap h2 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 3rem 0 0.8rem;
  color: var(--accent);
}

.guide-wrap h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 1.8rem 0 0.5rem;
  opacity: 0.8;
}

.guide-wrap p {
  font-size: 0.88rem;
  line-height: 1.9;
  opacity: 0.65;
  margin-bottom: 1rem;
}

.guide-wrap ul, .guide-wrap ol {
  margin: 0.5rem 0 1.2rem 1.2rem;
}

.guide-wrap li {
  font-size: 0.88rem;
  line-height: 1.85;
  opacity: 0.65;
  margin-bottom: 0.35rem;
}

.guide-wrap code {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  background: var(--card-bg);
  border: 1px solid var(--card-bd);
  border-radius: 3px;
  padding: 0.1em 0.4em;
}

.guide-wrap pre {
  background: #111;
  border: 1px solid rgba(50,153,179,0.15);
  border-radius: 6px;
  padding: 1.2rem 1.4rem;
  overflow-x: auto;
  margin: 1rem 0 1.5rem;
}

.guide-wrap pre code {
  background: none;
  border: none;
  padding: 0;
  color: #f0ede8;
  font-size: 0.76rem;
  line-height: 1.7;
}

/* Module card grid on guide index */
.guide-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin: 2rem 0;
}

.guide-card {
  background: var(--card-bg);
  border: 1px solid var(--card-bd);
  border-radius: 8px;
  padding: 1.4rem;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s;
  display: block;
}

.guide-card:hover { border-color: var(--accent); }

.guide-card__group {
  font-family: var(--font-mono);
  font-size: 0.52rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  opacity: 0.8;
  margin-bottom: 0.4rem;
}

.guide-card__title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 0.4rem;
}

.guide-card__desc {
  font-size: 0.8rem;
  line-height: 1.65;
  opacity: 0.5;
}

.guide-disclaimer {
  margin-top: 4rem;
  padding: 1rem 1.4rem;
  background: var(--card-bg);
  border: 1px solid var(--border-s);
  border-radius: 6px;
}

.guide-disclaimer p {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.35;
  margin-bottom: 0;
  line-height: 1.7;
}

.guide-footer {
  border-top: 1px solid var(--border-m);
  margin-top: 5rem;
  padding-top: 2rem;
  text-align: center;
}

.guide-footer p {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.12em;
  opacity: 0.28;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .pi-hero__layout {
    grid-template-columns: 1fr;
    gap: 2rem;
    text-align: center;
  }

  .pi-hero__cta { justify-content: center; }

  .pi-phone-wrap { display: none; }

  .pi-case__wrap {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .pi-case__wrap.flip { direction: ltr; }

  .pi-who__grid { grid-template-columns: 1fr; }

  .pi-footer {
    padding: 16px 20px;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .pi-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .pi-register__inner { padding: 0; }

  .snap-section { padding: 1.5rem; }

  .c-nav {
    top: 16px;
    right: 16px;
    gap: 0.8rem;
  }

  .pi-hero__urgency { display: none; }

  .guide-grid { grid-template-columns: 1fr; }

  .guide-nav { padding: 0 1rem; gap: 1rem; }
}