/* ─── DESIGN TOKENS ─────────────────────────────── */
:root {
  --orange:       #FF7F00;
  --orange-hover: #e67200;
  --bg:           #ffffff;
  --surface:      #f8f8f6;
  --text:         #1a1a1a;
  --text-sec:     #555555;
  --border:       #e8e8e4;
  --charcoal:     #111111;
  --radius-card:  16px;
  --radius-pill:  9999px;
  --max-w:        1100px;
}

/* ─── RESET & BASE ──────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 17px;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

/* ─── UTILITIES ─────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: 20px;
}
@media (min-width: 768px) { .container { padding-inline: 24px; } }

.section { padding: 56px 20px; }
@media (min-width: 768px) { .section { padding: 80px 24px; } }

.section-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--orange);
  background: rgba(255,127,0,.1);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(26px, 4vw, 42px);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
}
.section-subtitle {
  font-size: 17px;
  color: var(--text-sec);
  max-width: 640px;
  margin-bottom: 48px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--radius-pill);
  font-family: inherit;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background .2s, color .2s, border-color .2s, box-shadow .2s;
  white-space: nowrap;
}
.btn--primary {
  background: var(--orange);
  color: #fff;
}
.btn--primary:hover { background: var(--orange-hover); }
.btn--ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,.5);
}
.btn--ghost:hover { border-color: #fff; background: rgba(255,255,255,.08); }
.btn--ghost-dark {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn--ghost-dark:hover { border-color: var(--orange); color: var(--orange); }

/* Cards */
.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 28px;
}
.card--surface { background: var(--surface); border-color: transparent; }
.card--dark { background: #1c1c1c; border-color: #2a2a2a; color: #fff; }
.card--accent-border { border-left: 4px solid var(--orange); }

/* Grid helpers */
.grid-2 { display: grid; gap: 24px; }
.grid-3 { display: grid; gap: 24px; }
.grid-4 { display: grid; gap: 24px; }
@media (min-width: 600px)  { .grid-2 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 768px)  { .grid-3 { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 900px)  { .grid-4 { grid-template-columns: repeat(4, 1fr); } }

/* Icons */
.icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: rgba(255,127,0,.12);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  margin-bottom: 16px;
  flex-shrink: 0;
}
.icon--white { background: rgba(255,255,255,.12); }

/* Scroll-reveal */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .55s ease, transform .55s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ─── 00. HEADER ────────────────────────────────── */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid transparent;
  transition: border-color .25s, box-shadow .25s, backdrop-filter .25s;
}
.header.scrolled {
  border-color: var(--border);
  box-shadow: 0 2px 20px rgba(0,0,0,.07);
  backdrop-filter: blur(12px);
}
.header__inner {
  max-width: var(--max-w);
  margin-inline: auto;
  padding: 0 20px;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 24px;
}
@media (min-width: 768px) { .header__inner { padding: 0 24px; } }

.header__logo {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--charcoal);
  flex-shrink: 0;
}
.header__logo span { color: var(--orange); }

.header__nav {
  display: none;
  gap: 28px;
  margin-left: auto;
}
@media (min-width: 900px) { .header__nav { display: flex; } }
.header__nav a {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-sec);
  transition: color .18s;
}
.header__nav a:hover { color: var(--text); }

.header__actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}
@media (min-width: 900px) { .header__actions { margin-left: 0; } }

.lang-toggle {
  display: flex;
  background: var(--surface);
  border-radius: var(--radius-pill);
  padding: 3px;
  gap: 2px;
  border: 1px solid var(--border);
}
.lang-toggle button {
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 13px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  color: var(--text-sec);
  transition: background .18s, color .18s;
}
.lang-toggle button.active {
  background: var(--orange);
  color: #fff;
}

/* ─── 01. HERO ──────────────────────────────────── */
.hero {
  background: var(--charcoal);
  color: #fff;
  padding: 80px 20px 100px;
  position: relative;
  overflow: hidden;
}
@media (min-width: 768px) { .hero { padding: 110px 24px 130px; } }

/* Geometric accent */
.hero::before {
  content: '';
  position: absolute;
  top: -120px; right: -80px;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,127,0,.28) 0%, transparent 65%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -60px; left: -40px;
  width: 320px; height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,127,0,.12) 0%, transparent 65%);
  pointer-events: none;
}

.hero__inner {
  position: relative;
  z-index: 1;
  max-width: var(--max-w);
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: 48px;
}
.hero__content { flex: 1; min-width: 0; }
.hero__logo-side {
  display: none;
  flex-shrink: 0;
}
.hero__logo-side img {
  width: 280px;
  height: auto;
  border-radius: 20px;
  opacity: .9;
}
@media (min-width: 768px) {
  .hero__logo-side { display: block; }
  .hero__logo-side img { width: 320px; }
}
@media (min-width: 1000px) {
  .hero__logo-side img { width: 380px; }
}

.hero__tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 24px;
  opacity: 0;
  animation: fadeUp .6s .1s forwards;
}
.hero__tag::before {
  content: '';
  display: block;
  width: 24px; height: 2px;
  background: var(--orange);
}

.hero__title {
  font-size: clamp(36px, 6vw, 68px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -.02em;
  margin-bottom: 24px;
  max-width: 760px;
  opacity: 0;
  animation: fadeUp .6s .2s forwards;
}
.hero__title em { color: var(--orange); font-style: normal; }

.hero__sub {
  font-size: clamp(15px, 2vw, 18px);
  color: rgba(255,255,255,.72);
  max-width: 600px;
  margin-bottom: 40px;
  opacity: 0;
  animation: fadeUp .6s .35s forwards;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  opacity: 0;
  animation: fadeUp .6s .5s forwards;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: none; }
}

/* ─── 02. PROBLEMS ──────────────────────────────── */
.problems { background: var(--surface); }
.problems .section-inner { max-width: var(--max-w); margin-inline: auto; }

.problem-card {
  background: #fff;
  border-radius: var(--radius-card);
  padding: 28px;
  border: 1px solid var(--border);
  transition: box-shadow .2s, transform .2s;
}
.problem-card:hover { box-shadow: 0 8px 32px rgba(0,0,0,.07); transform: translateY(-2px); }
.problem-card__title { font-size: 17px; font-weight: 700; margin-bottom: 10px; }
.problem-card__text { font-size: 15px; color: var(--text-sec); line-height: 1.6; }

/* ─── 03. WHY OAK EVENTS ───────────────────────── */
.why { background: var(--bg); }
.why .section-inner { max-width: var(--max-w); margin-inline: auto; }

.pillar {
  display: flex;
  flex-direction: column;
}
.pillar__title { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.pillar__text  { font-size: 14px; color: var(--text-sec); line-height: 1.6; }

/* ─── 04. PLATFORM TABS ─────────────────────────── */
.platform { background: var(--surface); }
.platform .section-inner { max-width: var(--max-w); margin-inline: auto; }

.tabs {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--border);
  margin-bottom: 40px;
  overflow-x: auto;
  scrollbar-width: none;
}
.tabs::-webkit-scrollbar { display: none; }
.tab-btn {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  padding: 12px 24px;
  font-family: inherit;
  font-size: 15px;
  font-weight: 700;
  color: var(--text-sec);
  cursor: pointer;
  white-space: nowrap;
  transition: color .2s, border-color .2s;
}
.tab-btn.active { color: var(--orange); border-color: var(--orange); }
.tab-btn:hover:not(.active) { color: var(--text); }

.tab-panel { display: none; }
.tab-panel.active { display: grid; gap: 40px; }
@media (min-width: 768px) { .tab-panel.active { grid-template-columns: 1fr 1fr; align-items: start; } }

.feature-list { display: flex; flex-direction: column; gap: 16px; }
.feature-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.feature-item__dot {
  width: 8px; height: 8px;
  background: var(--orange);
  border-radius: 50%;
  margin-top: 7px;
  flex-shrink: 0;
}
.feature-item__text { font-size: 15px; line-height: 1.6; }
.feature-item__title { font-weight: 700; display: block; margin-bottom: 2px; }

.tab-panel__copy h3 { font-size: 22px; font-weight: 800; margin-bottom: 14px; }
.tab-panel__copy p  { font-size: 15px; color: var(--text-sec); line-height: 1.7; margin-bottom: 14px; }
.tab-panel__copy .highlight {
  background: rgba(255,127,0,.08);
  border-left: 3px solid var(--orange);
  padding: 14px 18px;
  border-radius: 0 8px 8px 0;
  font-size: 14px;
  color: var(--text);
  line-height: 1.6;
}

/* ─── 05. COMPETITIVE ADVANTAGES ───────────────── */
.competitive { background: var(--bg); }
.competitive .section-inner { max-width: var(--max-w); margin-inline: auto; }

.adv-card {
  padding: 28px;
  border-radius: var(--radius-card);
  border: 1px solid var(--border);
  border-left: 4px solid var(--orange);
  background: #fff;
  transition: box-shadow .2s;
}
.adv-card:hover { box-shadow: 0 6px 24px rgba(0,0,0,.07); }
.adv-card__title { font-size: 17px; font-weight: 700; margin-bottom: 10px; }
.adv-card__text  { font-size: 15px; color: var(--text-sec); line-height: 1.6; }

/* ─── 06. USE CASES ─────────────────────────────── */
.usecases { background: var(--surface); }
.usecases .section-inner { max-width: var(--max-w); margin-inline: auto; }

.usecases__grid {
  display: grid;
  gap: 24px;
  grid-template-columns: 1fr;
}
@media (min-width: 600px) { .usecases__grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 900px) { .usecases__grid { grid-template-columns: repeat(3, 1fr); } }

.usecase-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: box-shadow .2s, transform .2s;
}
.usecase-card:hover { box-shadow: 0 8px 32px rgba(0,0,0,.07); transform: translateY(-3px); }
.usecase-card__title { font-size: 17px; font-weight: 800; }
.usecase-card__obj-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-sec);
}
.usecase-card__obj { font-size: 14px; color: var(--text-sec); line-height: 1.55; }

.usecase-card__bullets { display: flex; flex-direction: column; gap: 6px; padding: 0; }
.usecase-card__bullets li {
  font-size: 14px;
  color: var(--text-sec);
  display: flex;
  gap: 8px;
  align-items: flex-start;
}
.usecase-card__bullets li::before {
  content: '→';
  color: var(--orange);
  font-weight: 700;
  flex-shrink: 0;
}

.usecase-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
}
.tag {
  font-size: 12px;
  font-weight: 600;
  background: rgba(255,127,0,.1);
  color: var(--orange);
  padding: 3px 10px;
  border-radius: var(--radius-pill);
}

/* ─── 07. KPI ────────────────────────────────────── */
.kpi-section {
  background: var(--charcoal);
  color: #fff;
}
.kpi-section .section-inner { max-width: var(--max-w); margin-inline: auto; }
.kpi-section .section-label {
  background: rgba(255,127,0,.2);
  color: var(--orange);
}
.kpi-section .section-title { color: #fff; }
.kpi-section .section-subtitle { color: rgba(255,255,255,.6); }

.kpi-card {
  background: #1c1c1c;
  border: 1px solid #2a2a2a;
  border-radius: var(--radius-card);
  padding: 28px;
  transition: border-color .2s;
}
.kpi-card:hover { border-color: var(--orange); }
.kpi-card__num {
  font-size: 36px;
  font-weight: 800;
  color: var(--orange);
  line-height: 1;
  margin-bottom: 12px;
}
.kpi-card__title { font-size: 17px; font-weight: 700; color: #fff; margin-bottom: 10px; }
.kpi-card__what  { font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: rgba(255,255,255,.4); margin-bottom: 6px; margin-top: 14px; }
.kpi-card__text  { font-size: 14px; color: rgba(255,255,255,.65); line-height: 1.6; }

/* ─── 08. FAQ ────────────────────────────────────── */
.faq { background: var(--bg); }
.faq .section-inner { max-width: 760px; margin-inline: auto; }

.faq-list { display: flex; flex-direction: column; gap: 0; border-top: 1px solid var(--border); }

.faq-item { border-bottom: 1px solid var(--border); }
.faq-item__btn {
  width: 100%;
  background: none;
  border: none;
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  cursor: pointer;
  font-family: inherit;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  text-align: left;
}
.faq-item__btn:hover { color: var(--orange); }
.faq-chevron {
  flex-shrink: 0;
  width: 22px; height: 22px;
  border-radius: 50%;
  border: 2px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  transition: transform .3s, border-color .2s, background .2s;
}
.faq-chevron svg { width: 12px; height: 12px; stroke: var(--text-sec); transition: stroke .2s; }
.faq-item__btn[aria-expanded="true"] .faq-chevron {
  transform: rotate(180deg);
  border-color: var(--orange);
  background: var(--orange);
}
.faq-item__btn[aria-expanded="true"] .faq-chevron svg { stroke: #fff; }

.faq-item__body {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
}
.faq-item__body-inner {
  padding: 0 0 20px;
  font-size: 15px;
  color: var(--text-sec);
  line-height: 1.7;
}

/* ─── 09. NEXT STEPS ────────────────────────────── */
#next-steps { background: var(--charcoal); color: #fff; }
#next-steps .section-inner { max-width: var(--max-w); margin-inline: auto; }
#next-steps .section-label { background: rgba(255,127,0,.2); }
#next-steps .section-title { color: #fff; }

.steps {
  display: grid;
  gap: 24px;
  margin-bottom: 60px;
}
@media (min-width: 768px) { .steps { grid-template-columns: repeat(3, 1fr); } }

.step {
  background: #1c1c1c;
  border: 1px solid #2a2a2a;
  border-radius: var(--radius-card);
  padding: 28px;
  position: relative;
}
.step__num {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--orange);
  color: #fff;
  font-size: 16px;
  font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
}
.step__title { font-size: 17px; font-weight: 800; color: #fff; margin-bottom: 10px; }
.step__text  { font-size: 14px; color: rgba(255,255,255,.6); line-height: 1.65; }

.cta-block {
  background: linear-gradient(135deg, var(--orange) 0%, var(--orange-hover) 100%);
  border-radius: 24px;
  padding: 48px 40px;
  text-align: center;
}
.cta-block__title { font-size: clamp(22px, 3.5vw, 34px); font-weight: 800; color: #fff; margin-bottom: 14px; }
.cta-block__sub   { font-size: 16px; color: rgba(255,255,255,.85); margin-bottom: 32px; max-width: 500px; margin-inline: auto; }
.btn--white { background: #fff; color: var(--orange); }
.btn--white:hover { background: rgba(255,255,255,.9); }

/* ─── 10. FOOTER ────────────────────────────────── */
.footer {
  background: #0d0d0d;
  color: rgba(255,255,255,.5);
  padding: 40px 20px;
}
@media (min-width: 768px) { .footer { padding: 40px 24px; } }
.footer__inner {
  max-width: var(--max-w);
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  align-items: center;
  justify-content: space-between;
}
.footer__logo { font-size: 17px; font-weight: 800; color: #fff; }
.footer__logo span { color: var(--orange); }
.footer__tagline { font-size: 13px; margin-top: 4px; }
.footer__links {
  display: flex;
  gap: 24px;
}
.footer__links a {
  font-size: 13px;
  color: rgba(255,255,255,.5);
  transition: color .18s;
}
.footer__links a:hover { color: #fff; }
.footer__copy { width: 100%; font-size: 12px; text-align: center; margin-top: 20px; border-top: 1px solid #1e1e1e; padding-top: 20px; }

/* ─── LANGUAGE TOGGLE ───────────────────────────── */
[data-en] { }
html[data-lang="en"] [data-it-only] { display: none !important; }
html[data-lang="it"] [data-en-only] { display: none !important; }

/* ═══════════════════════════════════════════════
   PRESENTATION OVERLAY
═══════════════════════════════════════════════ */

/* Button in header */
.btn-pres {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,127,0,.08);
  border: 1.5px solid rgba(255,127,0,.3);
  border-radius: var(--radius-pill);
  padding: 7px 15px;
  font-family: inherit;
  font-size: 13px;
  font-weight: 700;
  color: var(--orange);
  cursor: pointer;
  white-space: nowrap;
  transition: background .2s, border-color .2s;
}
.btn-pres:hover { background: rgba(255,127,0,.16); border-color: var(--orange); }
.btn-pres svg { flex-shrink: 0; }
.btn-pres-label { display: none; }
@media (min-width: 640px) { .btn-pres-label { display: inline; } }

/* ── Overlay shell ── */
.pres-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: #080808;
  display: flex;
  flex-direction: column;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s ease;
  overflow: hidden;
}
.pres-overlay.open { opacity: 1; pointer-events: all; }

/* ── Top bar ── */
.pres-bar {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 13px 20px;
  border-bottom: 1px solid rgba(255,255,255,.07);
  flex-shrink: 0;
}
@media (min-width: 600px) { .pres-bar { padding: 13px 32px; } }
.pres-bar-logo { font-size: 15px; font-weight: 800; color: #fff; flex-shrink: 0; }
.pres-bar-logo span { color: var(--orange); }
.pres-progress-track {
  flex: 1;
  height: 3px;
  background: rgba(255,255,255,.1);
  border-radius: 99px;
  overflow: hidden;
  max-width: 260px;
  margin-inline: auto;
}
.pres-progress-fill {
  height: 100%;
  background: var(--orange);
  border-radius: 99px;
  transition: width .45s ease;
  width: 0%;
}
.pres-bar-counter {
  font-size: 12px;
  font-weight: 600;
  color: rgba(255,255,255,.3);
  min-width: 36px;
  text-align: right;
  flex-shrink: 0;
}
.pres-close-btn {
  width: 32px; height: 32px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.15);
  background: none;
  cursor: pointer;
  color: rgba(255,255,255,.5);
  font-size: 14px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: background .2s, color .2s, border-color .2s;
}
.pres-close-btn:hover { background: rgba(255,255,255,.1); color: #fff; border-color: rgba(255,255,255,.3); }

/* ── Quiz phase ── */
.pres-quiz {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 20px;
  overflow-y: auto;
}
.pres-question-wrap {
  width: 100%;
  max-width: 640px;
  transition: opacity .22s ease, transform .22s ease;
}
.pres-step-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 12px;
}
.pres-question-text {
  font-size: clamp(22px, 4vw, 34px);
  font-weight: 800;
  color: #fff;
  line-height: 1.15;
  margin-bottom: 6px;
}
.pres-question-hint {
  font-size: 14px;
  color: rgba(255,255,255,.35);
  margin-bottom: 26px;
}
.pres-choices {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-bottom: 26px;
}
@media (min-width: 560px) { .pres-choices.cols-5 { grid-template-columns: repeat(3, 1fr); } }
.pres-choice {
  background: rgba(255,255,255,.04);
  border: 1.5px solid rgba(255,255,255,.09);
  border-radius: 14px;
  padding: 14px 16px;
  cursor: pointer;
  text-align: left;
  font-family: inherit;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: border-color .18s, background .18s, transform .15s;
}
.pres-choice:hover { border-color: rgba(255,127,0,.5); background: rgba(255,127,0,.07); transform: translateY(-2px); }
.pres-choice.selected { border-color: var(--orange); background: rgba(255,127,0,.13); }
.pres-choice__icon { font-size: 20px; margin-bottom: 4px; }
.pres-choice__label { font-size: 14px; font-weight: 700; color: #fff; line-height: 1.3; }
.pres-choice__sub { font-size: 12px; color: rgba(255,255,255,.38); line-height: 1.4; }
.pres-quiz-footer { display: flex; align-items: center; justify-content: flex-end; gap: 12px; }
.pres-btn-back {
  background: none; border: none;
  font-family: inherit; font-size: 14px; font-weight: 600;
  color: rgba(255,255,255,.3); cursor: pointer; padding: 8px 4px;
  transition: color .18s;
}
.pres-btn-back:hover { color: rgba(255,255,255,.65); }
.pres-btn-adv {
  background: var(--orange); color: #fff; border: none;
  border-radius: var(--radius-pill); padding: 12px 26px;
  font-family: inherit; font-size: 14px; font-weight: 700;
  cursor: pointer;
  opacity: 0; pointer-events: none; transform: translateY(6px);
  transition: background .2s, opacity .2s, transform .2s;
}
.pres-btn-adv.show { opacity: 1; pointer-events: all; transform: none; }
.pres-btn-adv:hover { background: var(--orange-hover); }

/* ── Slides phase ── */
.pres-slides-wrap { flex: 1; display: flex; flex-direction: column; overflow: hidden; }
.pres-slide-viewport { flex: 1; position: relative; overflow: hidden; }
.pres-slide {
  position: absolute; inset: 0;
  display: flex; align-items: flex-start; justify-content: center;
  padding: 28px 20px 12px;
  overflow-y: auto;
  opacity: 0; transform: translateX(32px);
  transition: opacity .38s ease, transform .38s ease;
  pointer-events: none;
}
@media (min-width: 600px) { .pres-slide { padding: 36px 36px 12px; } }
.pres-slide.s-active { opacity: 1; transform: none; pointer-events: all; }
.pres-slide.s-exit   { opacity: 0; transform: translateX(-32px); pointer-events: none; }
.pres-slide-inner { width: 100%; max-width: 760px; }

/* Slide nav bar */
.pres-slide-nav {
  display: flex; align-items: center; justify-content: center; gap: 16px;
  padding: 12px 20px;
  border-top: 1px solid rgba(255,255,255,.06);
  flex-shrink: 0;
}
.pres-arrow {
  width: 40px; height: 40px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,.1);
  background: rgba(255,255,255,.05);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; color: rgba(255,255,255,.6); font-size: 17px;
  font-family: inherit;
  transition: background .2s, color .2s, border-color .2s;
}
.pres-arrow:hover:not(:disabled) { background: rgba(255,255,255,.12); color: #fff; border-color: rgba(255,255,255,.25); }
.pres-arrow:disabled { opacity: .25; cursor: default; }
.pres-slide-counter { font-size: 13px; font-weight: 600; color: rgba(255,255,255,.3); min-width: 50px; text-align: center; }

/* ── Slide content atoms ── */
.pres-slide-num {
  font-size: 70px; font-weight: 800; letter-spacing: -.04em;
  color: rgba(255,255,255,.04); line-height: 1;
  margin-bottom: -14px; user-select: none;
}
.pres-slide-tag { font-size: 11px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--orange); margin-bottom: 10px; }
.pres-slide-title { font-size: clamp(24px, 4vw, 38px); font-weight: 800; color: #fff; line-height: 1.15; margin-bottom: 12px; }
.pres-slide-title em { color: var(--orange); font-style: normal; }
.pres-slide-sub { font-size: 15px; color: rgba(255,255,255,.5); line-height: 1.65; margin-bottom: 26px; max-width: 580px; }
.pres-highlight-box {
  background: rgba(255,127,0,.08); border: 1px solid rgba(255,127,0,.22);
  border-radius: 12px; padding: 14px 18px;
  font-size: 14px; color: rgba(255,255,255,.72); line-height: 1.6; margin-bottom: 22px;
}
.pres-divider { height: 1px; background: rgba(255,255,255,.07); margin: 22px 0; }

/* Card grid */
.pres-card-grid { display: grid; gap: 11px; margin-top: 4px; }
.pres-card-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.pres-card-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.pres-card-grid.cols-4 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 500px) {
  .pres-card-grid.cols-2,
  .pres-card-grid.cols-3,
  .pres-card-grid.cols-4 { grid-template-columns: 1fr; }
}
@media (min-width: 680px) { .pres-card-grid.cols-4 { grid-template-columns: repeat(4, 1fr); } }
.pres-card {
  background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.08);
  border-radius: 13px; padding: 16px;
}
.pres-card.hl { border-color: rgba(255,127,0,.32); background: rgba(255,127,0,.08); }
.pres-card__icon { font-size: 20px; margin-bottom: 7px; }
.pres-card__title { font-size: 13px; font-weight: 700; color: #fff; margin-bottom: 4px; }
.pres-card__text { font-size: 12px; color: rgba(255,255,255,.45); line-height: 1.55; }

/* Phase columns */
.pres-phases { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 4px; }
@media (max-width: 500px) { .pres-phases { grid-template-columns: 1fr; } }
.pres-phase { border: 1px solid rgba(255,255,255,.08); border-radius: 13px; padding: 16px; }
.pres-phase.hl { border-color: rgba(255,127,0,.38); background: rgba(255,127,0,.07); }
.pres-phase__badge {
  font-size: 10px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  padding: 2px 8px; border-radius: 99px;
  background: rgba(255,255,255,.07); color: rgba(255,255,255,.35);
  display: inline-block; margin-bottom: 10px;
}
.pres-phase.hl .pres-phase__badge { background: rgba(255,127,0,.22); color: var(--orange); }
.pres-phase__title { font-size: 13px; font-weight: 700; color: #fff; margin-bottom: 7px; }
.pres-phase__items { font-size: 11px; color: rgba(255,255,255,.38); line-height: 1.75; }
.pres-phase.hl .pres-phase__items { color: rgba(255,255,255,.52); }

/* Step cards (CTA slide) */
.pres-steps-row { display: flex; flex-direction: column; gap: 10px; margin-top: 4px; }
@media (min-width: 560px) { .pres-steps-row { flex-direction: row; gap: 10px; } }
.pres-step-card {
  flex: 1; background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08); border-radius: 13px; padding: 16px;
}
.pres-step-card__num {
  width: 28px; height: 28px; background: var(--orange); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 800; color: #fff; margin-bottom: 8px;
}
.pres-step-card__title { font-size: 13px; font-weight: 700; color: #fff; margin-bottom: 4px; }
.pres-step-card__text { font-size: 12px; color: rgba(255,255,255,.4); line-height: 1.5; }

/* CTA slide */
.pres-cta-wrap { text-align: center; padding: 8px 0; }
.pres-cta-icon { font-size: 44px; margin-bottom: 14px; }
.pres-cta-title { font-size: clamp(22px, 4vw, 36px); font-weight: 800; color: #fff; line-height: 1.15; margin-bottom: 12px; }
.pres-cta-title em { color: var(--orange); font-style: normal; }
.pres-cta-sub { font-size: 15px; color: rgba(255,255,255,.46); max-width: 420px; margin: 0 auto 24px; line-height: 1.65; }
.pres-cta-btn {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--orange); color: #fff; border: none;
  padding: 14px 34px; font-size: 15px; font-weight: 700;
  border-radius: var(--radius-pill); cursor: pointer;
  font-family: inherit; text-decoration: none;
  transition: background .2s, transform .18s;
}
.pres-cta-btn:hover { background: var(--orange-hover); transform: scale(1.03); }
.pres-cta-note { font-size: 12px; color: rgba(255,255,255,.2); margin-top: 18px; }