/* ============================================================
   PowerPointOS — Landing page
   ============================================================ */

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }
main, header, footer { position: relative; z-index: 1; }

/* ---- Shared atoms ---- */
.label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: var(--label-spacing);
  text-transform: var(--label-transform);
  color: var(--accent);
}
.grad-text {
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.panel {
  background: var(--panel-bg);
  -webkit-backdrop-filter: blur(var(--panel-blur)); backdrop-filter: blur(var(--panel-blur));
  border: var(--panel-border);
  border-radius: var(--radius);
  box-shadow: var(--panel-hi), var(--shadow);
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 12px;
  letter-spacing: var(--label-spacing); text-transform: uppercase;
  color: var(--text-dim);
  padding: 7px 14px; border-radius: 100px;
  background: var(--panel-bg); border: var(--panel-border);
}
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--success); box-shadow: 0 0 10px var(--success); }

/* ---- Buttons ---- */
.btn {
  font-family: var(--font-display);
  font-size: 15px; font-weight: 600; letter-spacing: .01em;
  border: none; cursor: pointer;
  padding: 14px 24px; border-radius: var(--btn-radius);
  display: inline-flex; align-items: center; gap: 10px;
  transition: transform .25s var(--ease-spring), box-shadow .3s, filter .3s;
  text-decoration: none; white-space: nowrap;
}
.btn-primary {
  background: var(--grad); color: #0a0c12;
  box-shadow: var(--glow);
}
body[data-theme="b"] .btn-primary, body[data-theme="c"] .btn-primary { text-transform: uppercase; letter-spacing: .06em; }
.btn-primary:hover { transform: translateY(-2px) scale(1.02); filter: brightness(1.08); box-shadow: var(--glow), 0 14px 40px -10px var(--accent); }
.btn-ghost {
  background: var(--panel-bg); color: var(--text);
  border: var(--panel-border);
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
}
.btn-ghost:hover { transform: translateY(-2px); border-color: var(--accent); color: var(--accent); }
.btn-lg { padding: 18px 34px; font-size: 17px; border-radius: calc(var(--btn-radius) + 2px); }

/* ============================================================
   Top nav
   ============================================================ */
.nav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 28px;
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  -webkit-backdrop-filter: blur(18px); backdrop-filter: blur(18px);
  border-bottom: 1px solid color-mix(in srgb, var(--text) 8%, transparent);
}
.brand { display: flex; align-items: center; gap: 11px; cursor: pointer; user-select: none; }
.brand .mark { width: 30px; height: 30px; flex: none; }
.brand .name {
  font-family: var(--font-display); font-weight: 700; font-size: 19px;
  letter-spacing: var(--display-spacing);
}
.brand .name b { font-weight: 800; }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a {
  color: var(--text-dim); text-decoration: none; font-size: 14px;
  font-family: var(--font-body); transition: color .2s;
}
.nav-links a:hover { color: var(--text); }

/* theme switcher */
.theme-switch { display: flex; align-items: center; gap: 6px; padding: 5px; border-radius: 100px; background: var(--panel-bg); border: var(--panel-border); }
.theme-switch button {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .06em; text-transform: uppercase;
  border: none; background: transparent; color: var(--text-faint); cursor: pointer;
  padding: 6px 12px; border-radius: 100px; transition: all .25s;
}
.theme-switch button.active { background: var(--grad); color: #0a0c12; font-weight: 700; }
.theme-switch button:not(.active):hover { color: var(--text); }

/* mobile nav controls (compact Boot + hamburger) — hidden on desktop */
.nav-mobile { display: none; align-items: center; gap: 10px; }
.nav-cta-m { padding: 10px 14px; font-size: 13px; }
.nav-toggle {
  width: 42px; height: 42px; flex: none; padding: 0;
  display: inline-flex; flex-direction: column; align-items: center; justify-content: center; gap: 5px;
  background: var(--panel-bg); border: var(--panel-border); border-radius: 11px; cursor: pointer;
}
.nav-toggle span { display: block; width: 20px; height: 2px; border-radius: 2px; background: var(--text); transition: transform .25s, opacity .2s; }
.nav.open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav.open .nav-toggle span:nth-child(2) { opacity: 0; }
.nav.open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 860px) {
  .nav { padding: 13px 16px; }
  .nav-mobile { display: flex; }

  /* the desktop link row becomes a dropdown panel under the bar */
  .nav-links {
    position: absolute; top: 100%; left: 0; right: 0;
    display: none; flex-direction: column; align-items: stretch; gap: 2px;
    padding: 10px 16px 16px;
    background: color-mix(in srgb, var(--bg) 94%, transparent);
    -webkit-backdrop-filter: blur(18px); backdrop-filter: blur(18px);
    border-bottom: 1px solid color-mix(in srgb, var(--text) 8%, transparent);
    box-shadow: 0 18px 40px -20px rgba(0,0,0,.6);
  }
  .nav.open .nav-links { display: flex; }
  .nav-links a:not(.nav-cta) { display: block; padding: 13px 8px; font-size: 16px; border-radius: 10px; color: var(--text-dim); }
  .nav-links a:not(.nav-cta):active { background: var(--panel-bg); color: var(--text); }
  .nav-links .nav-cta { display: none; }

  /* theme switcher: full-width row with larger tap targets */
  .theme-switch { width: 100%; justify-content: center; gap: 8px; margin-top: 8px; padding: 6px; }
  .theme-switch button { flex: 1; padding: 14px 12px; font-size: 12px; }
}

@media (max-width: 380px) {
  .brand .name { font-size: 17px; }
  .nav { padding: 12px 13px; }
}

/* ============================================================
   Hero
   ============================================================ */
.hero { position: relative; padding: 90px 0 60px; overflow: hidden; }
.hero-inner { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; }
.hero h1 {
  font-family: var(--font-display);
  font-weight: var(--display-weight);
  font-size: clamp(44px, 6.4vw, 92px);
  line-height: .98; letter-spacing: var(--display-spacing);
  margin: 22px 0 0; text-wrap: balance;
}
.hero h1 .line2 { display: block; }
.tagline-rotator {
  height: 1.4em; margin: 22px 0 28px; overflow: hidden; position: relative;
  font-family: var(--font-body); font-size: clamp(17px, 2vw, 22px); color: var(--text-dim);
  font-weight: 400;
}
.tagline-rotator .t {
  position: absolute; left: 0; top: 0; width: 100%;
  opacity: 0; transform: translateY(100%);
  transition: opacity .6s var(--ease-out), transform .6s var(--ease-out);
}
.tagline-rotator .t.in { opacity: 1; transform: translateY(0); }
.tagline-rotator .t.out { opacity: 0; transform: translateY(-100%); }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 6px; }
.hero-trust { margin-top: 26px; display: flex; align-items: center; gap: 10px; color: var(--text-faint); font-size: 13px; font-family: var(--font-mono); }
.hero-trust .check { color: var(--success); }

/* hero floating preview */
.hero-preview { position: relative; perspective: 1400px; }
.hero-glass {
  position: relative; border-radius: var(--radius-lg);
  aspect-ratio: 16/11; overflow: hidden;
  transform-style: preserve-3d;
  transition: transform .3s var(--ease-out);
}
.hero-glass .pp-screen { position: absolute; inset: 0; }
.float-card {
  position: absolute; padding: 13px 16px; border-radius: var(--radius);
  background: var(--panel-bg-strong);
  -webkit-backdrop-filter: blur(var(--panel-blur)); backdrop-filter: blur(var(--panel-blur));
  border: var(--panel-border); box-shadow: var(--panel-hi), var(--shadow);
  font-family: var(--font-mono); font-size: 12px; display: flex; align-items: center; gap: 9px;
  will-change: transform;
}
.float-card .ic { width: 22px; height: 22px; border-radius: 7px; display: grid; place-items: center; background: var(--grad-soft); color: var(--success); flex: none; }
.fc-1 { top: 8%; right: -6%; }
.fc-2 { bottom: 12%; left: -8%; }
.fc-3 { bottom: 40%; right: -10%; }

/* ============================================================
   Section scaffolding
   ============================================================ */
section { position: relative; padding: 78px 0; z-index: 1; }
.sec-head { max-width: 720px; margin-bottom: 44px; }
.sec-head h2 {
  font-family: var(--font-display); font-weight: var(--display-weight);
  font-size: clamp(30px, 4vw, 50px); line-height: 1.02; letter-spacing: var(--display-spacing);
  margin: 14px 0 14px; text-transform: var(--display-transform);
}
.sec-head p { color: var(--text-dim); font-size: 17px; margin: 0; max-width: 56ch; }
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s var(--ease-out), transform .7s var(--ease-out); }
.reveal.show { opacity: 1; transform: none; }

/* ---- Stats band ---- */
.stats { border-top: 1px solid color-mix(in srgb, var(--text) 8%, transparent); border-bottom: 1px solid color-mix(in srgb, var(--text) 8%, transparent); }
.stats-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; }
.stat { padding: 14px 22px; border-left: 1px solid color-mix(in srgb, var(--text) 7%, transparent); }
.stat:first-child { border-left: none; }
.stat .num { font-family: var(--font-display); font-weight: 700; font-size: clamp(30px, 3.4vw, 46px); letter-spacing: -.02em; line-height: 1; }
.stat .cap { color: var(--text-dim); font-size: 13px; margin-top: 10px; line-height: 1.45; }
@media (max-width: 900px){ .stats-grid { grid-template-columns: repeat(2,1fr); } .stat { border-left: none; padding: 18px 0; } }

/* ---- Feature grid ---- */
.feat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.feat {
  padding: 26px 24px 28px; border-radius: var(--radius);
  background: var(--panel-bg); border: var(--panel-border);
  -webkit-backdrop-filter: blur(var(--panel-blur)); backdrop-filter: blur(var(--panel-blur));
  box-shadow: var(--panel-hi);
  transition: transform .35s var(--ease-out), border-color .3s, box-shadow .3s;
  position: relative; overflow: hidden;
}
.feat:hover { transform: translateY(-6px); border-color: color-mix(in srgb, var(--accent) 55%, transparent); box-shadow: var(--panel-hi), var(--glow); }
.feat .ficon { width: 42px; height: 42px; border-radius: 11px; display: grid; place-items: center; background: var(--grad-soft); border: var(--panel-border); margin-bottom: 18px; color: var(--accent); }
.feat h3 { font-family: var(--font-display); font-size: 18px; margin: 0 0 8px; letter-spacing: var(--display-spacing); font-weight: 600; }
.feat h3 sup { font-size: 10px; color: var(--accent); }
.feat p { color: var(--text-dim); font-size: 14px; margin: 0; line-height: 1.5; }
@media (max-width: 1000px){ .feat-grid { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 560px){ .feat-grid { grid-template-columns: 1fr; } }

/* ---- Demo invite ---- */
.invite { text-align: center; }
.invite-frame {
  margin: 0 auto; max-width: 980px; border-radius: var(--radius-lg); overflow: hidden;
  position: relative; aspect-ratio: 16/9;
  border: var(--panel-border); box-shadow: var(--shadow), var(--panel-hi);
}
.invite-frame .pp-screen { position: absolute; inset: 0; }
.invite-overlay {
  position: absolute; inset: 0; display: grid; place-items: center;
  background: radial-gradient(60% 60% at 50% 50%, transparent, color-mix(in srgb, var(--bg) 78%, transparent));
}
.invite .label { display: block; margin-bottom: 16px; }

/* ---- Day in the life ---- */
.day-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.day-card { padding: 0; border-radius: var(--radius-lg); overflow: hidden; background: var(--panel-bg); border: var(--panel-border); -webkit-backdrop-filter: blur(var(--panel-blur)); backdrop-filter: blur(var(--panel-blur)); box-shadow: var(--panel-hi); }
.day-card .dc-head { padding: 20px 24px 0; }
.day-card h3 { font-family: var(--font-display); font-size: 20px; margin: 8px 0 6px; letter-spacing: var(--display-spacing); font-weight: 600; }
.day-card p { color: var(--text-dim); font-size: 14px; margin: 0 0 16px; }
.day-card .dc-demo { margin: 0 18px 18px; border-radius: var(--radius); overflow: hidden; border: var(--panel-border); background: var(--bg-2); }
@media (max-width: 800px){ .day-grid { grid-template-columns: 1fr; } }

/* mini terminal */
.mini-term { font-family: var(--font-mono); font-size: 13px; padding: 16px; min-height: 260px; }
.mini-term .ln { margin: 3px 0; white-space: pre-wrap; }
.mini-term .ps { color: var(--accent); }
.mini-term .ok { color: var(--success); }
.mini-term .cmd { color: var(--text); }
.mini-term .cursor { display: inline-block; width: 8px; height: 15px; background: var(--accent); vertical-align: -2px; animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* mini build */
.mini-build { padding: 18px; min-height: 260px; font-family: var(--font-mono); font-size: 12.5px; }
.mini-build .bstep { color: var(--text-dim); margin: 4px 0; opacity: .35; transition: opacity .3s, color .3s; }
.mini-build .bstep.done { opacity: 1; }
.mini-build .bstep.done::before { content: "✓ "; color: var(--success); }
.bar { height: 8px; border-radius: 100px; background: color-mix(in srgb, var(--text) 12%, transparent); overflow: hidden; margin: 14px 0; }
.bar > i { display: block; height: 100%; width: 0; background: var(--grad); border-radius: 100px; transition: width .2s linear; }
.bar.gold > i { background: linear-gradient(90deg, #ffd86b, #ffb33c); }

/* ---- Testimonials ---- */
.quotes { display: grid; grid-template-columns: repeat(2,1fr); gap: 16px; }
.quote { padding: 28px 28px 24px; border-radius: var(--radius); background: var(--panel-bg); border: var(--panel-border); -webkit-backdrop-filter: blur(var(--panel-blur)); backdrop-filter: blur(var(--panel-blur)); box-shadow: var(--panel-hi); }
.quote p { font-family: var(--font-display); font-size: 19px; line-height: 1.4; margin: 0 0 18px; letter-spacing: var(--display-spacing); font-weight: 400; }
.quote .who { display: flex; align-items: center; gap: 12px; }
.quote .av { width: 38px; height: 38px; border-radius: 50%; background: var(--grad-soft); border: var(--panel-border); flex: none; display: grid; place-items: center; font-family: var(--font-mono); font-size: 13px; color: var(--accent); }
.quote .who div { font-size: 13px; }
.quote .who .nm { font-weight: 600; }
.quote .who .rl { color: var(--text-faint); }
@media (max-width: 760px){ .quotes { grid-template-columns: 1fr; } }

/* ---- Pricing ---- */
.price-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; }
.tier { padding: 28px 24px; border-radius: var(--radius-lg); background: var(--panel-bg); border: var(--panel-border); -webkit-backdrop-filter: blur(var(--panel-blur)); backdrop-filter: blur(var(--panel-blur)); box-shadow: var(--panel-hi); display: flex; flex-direction: column; transition: transform .35s var(--ease-out), border-color .3s; }
.tier:hover { transform: translateY(-6px); border-color: color-mix(in srgb, var(--accent) 50%, transparent); }
.tier.featured { border-color: var(--accent); box-shadow: var(--panel-hi), var(--glow); }
.tier .tname { font-family: var(--font-mono); font-size: 12px; letter-spacing: var(--label-spacing); text-transform: uppercase; color: var(--accent); }
.tier .tprice { font-family: var(--font-display); font-size: 32px; font-weight: 700; margin: 14px 0 4px; letter-spacing: -.02em; }
.tier .tsub { color: var(--text-faint); font-size: 13px; min-height: 34px; }
.tier ul { list-style: none; padding: 0; margin: 18px 0 22px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.tier li { font-size: 13.5px; color: var(--text-dim); display: flex; gap: 9px; align-items: flex-start; }
.tier li .ck { color: var(--success); flex: none; margin-top: 1px; }
.tier .btn { width: 100%; justify-content: center; }
@media (max-width: 1000px){ .price-grid { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 540px){ .price-grid { grid-template-columns: 1fr; } }

/* ---- Footer ---- */
footer { border-top: 1px solid color-mix(in srgb, var(--text) 8%, transparent); padding: 56px 0 40px; margin-top: 30px; }
.foot-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 30px; flex-wrap: wrap; margin-bottom: 36px; }
.foot-cols { display: flex; gap: 60px; flex-wrap: wrap; }
.foot-col h4 { font-family: var(--font-mono); font-size: 11px; letter-spacing: var(--label-spacing); text-transform: uppercase; color: var(--text-faint); margin: 0 0 14px; }
.foot-col a { display: block; color: var(--text-dim); text-decoration: none; font-size: 14px; margin: 9px 0; transition: color .2s; }
.foot-col a:hover { color: var(--accent); }
.fineprint { border-top: 1px solid color-mix(in srgb, var(--text) 7%, transparent); padding-top: 22px; }
.fineprint p { font-size: 12px; color: var(--text-faint); line-height: 1.7; margin: 0; max-width: 100%; font-family: var(--font-mono); }
.fineprint .copy { margin-top: 16px; font-size: 13px; }

/* ---- Checkmark bloom (used across) ---- */
.bloom { position: relative; }
.bloom .spark { position: absolute; pointer-events: none; color: var(--success); font-weight: 700; opacity: 0; }

@media (max-width: 900px){
  .hero-inner { grid-template-columns: 1fr; gap: 38px; }
  .hero-preview { order: -1; max-width: 460px; margin: 0 auto; width: 100%; }
  .fc-3 { display: none; }
  section { padding: 56px 0; }
}