/* ============ Nadoo Landing — design tokens ============ */
:root {
  --bg: #0a0a12;
  --bg-soft: #10101b;
  --card: #15151f;
  --card-border: rgba(255, 255, 255, 0.07);
  --text: #eef0f6;
  --muted: #9aa0b4;
  --cyan: #2de1c2;
  --cyan-soft: #5eead4;
  --blue: #228be6;
  --green: #40c057;
  --purple: #7950f2;
  --magenta: #d63ce6;
  --radius: 20px;
  --font-display: "Unbounded", system-ui, sans-serif;
  --font-body: "Manrope", system-ui, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.container { width: min(1180px, 92%); margin: 0 auto; }
.container--narrow { width: min(820px, 92%); }

h1, h2, h3 { font-family: var(--font-display); line-height: 1.18; font-weight: 700; }
h1 { font-size: clamp(2rem, 4.6vw, 3.4rem); letter-spacing: -0.01em; }
h2 { font-size: clamp(1.5rem, 3.2vw, 2.3rem); }
h3 { font-size: 1.1rem; font-weight: 600; }

.grad {
  background: linear-gradient(92deg, var(--cyan) 10%, var(--purple) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.grad--blue { background-image: linear-gradient(92deg, #4dabf7, var(--blue)); }
.grad--green { background-image: linear-gradient(92deg, #69db7c, var(--green)); }
.grad--purple { background-image: linear-gradient(92deg, #b197fc, var(--magenta)); }

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 14px;
}
.eyebrow--blue { color: #4dabf7; }
.eyebrow--green { color: #69db7c; }
.eyebrow--purple { color: #b197fc; }

/* ============ Buttons ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 15px 30px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.98rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  cursor: pointer;
  border: none;
}
.btn--sm { padding: 10px 22px; font-size: 0.88rem; }
.btn--primary {
  background: linear-gradient(92deg, var(--cyan), #18b89d);
  color: #04221c;
  box-shadow: 0 6px 28px rgba(45, 225, 194, 0.35);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 10px 36px rgba(45, 225, 194, 0.5); }
.btn--ghost {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: var(--text);
}
.btn--ghost:hover { background: rgba(255, 255, 255, 0.1); transform: translateY(-2px); }
.btn--blue { background: linear-gradient(92deg, #4dabf7, var(--blue)); color: #fff; box-shadow: 0 6px 28px rgba(34, 139, 230, 0.35); }
.btn--green { background: linear-gradient(92deg, #69db7c, var(--green)); color: #06280f; box-shadow: 0 6px 28px rgba(64, 192, 87, 0.35); }
.btn--purple { background: linear-gradient(92deg, #9775fa, var(--purple)); color: #fff; box-shadow: 0 6px 28px rgba(121, 80, 242, 0.4); }
.btn--blue:hover, .btn--green:hover, .btn--purple:hover { transform: translateY(-2px); }

/* ============ Header ============ */
.header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  backdrop-filter: blur(18px);
  background: rgba(10, 10, 18, 0.7);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: background 0.3s;
}
.header__inner { display: flex; align-items: center; gap: 28px; height: 68px; }
.logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.35rem;
  background: linear-gradient(92deg, var(--cyan-soft), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.brand { display: inline-flex; align-items: center; gap: 12px; }
.nplus {
  width: 38px; height: 38px;
  border-radius: 13px;
  display: grid; place-items: center;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.82rem;
  color: #04221c;
  background: linear-gradient(135deg, var(--cyan-soft), #18b89d);
  box-shadow: 0 4px 18px rgba(45, 225, 194, 0.45);
}
.nav { display: flex; gap: 24px; margin-left: auto; }
.nav a { font-size: 0.92rem; font-weight: 600; color: var(--muted); transition: color 0.2s; }
.nav a:hover { color: var(--cyan); }
.burger { display: none; }

/* ============ Hero ============ */
.hero { position: relative; padding: 150px 0 80px; overflow: hidden; }
.hero__glow { position: absolute; border-radius: 50%; filter: blur(120px); opacity: 0.35; pointer-events: none; }
.hero__glow--1 { width: 560px; height: 560px; background: var(--purple); top: -180px; right: -120px; }
.hero__glow--2 { width: 480px; height: 480px; background: var(--cyan); bottom: -240px; left: -160px; opacity: 0.2; }
.hero__inner { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; position: relative; }
.hero__badges { display: flex; gap: 10px; margin-bottom: 22px; }
.chip {
  font-size: 0.78rem; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 7px 16px; border-radius: 999px; border: 1px solid;
}
.chip--blue { color: #4dabf7; border-color: rgba(77, 171, 247, 0.4); background: rgba(34, 139, 230, 0.1); }
.chip--green { color: #69db7c; border-color: rgba(105, 219, 124, 0.4); background: rgba(64, 192, 87, 0.1); }
.chip--purple { color: #b197fc; border-color: rgba(177, 151, 252, 0.4); background: rgba(121, 80, 242, 0.12); }
.hero__sub { color: var(--muted); font-size: 1.12rem; margin: 22px 0 30px; max-width: 540px; }
.hero__cta { display: flex; gap: 14px; flex-wrap: wrap; }
.hero__micro { margin-top: 18px; font-size: 0.85rem; color: var(--muted); opacity: 0.8; }

/* ============ iPhone 17 Pro Max CSS mockup ============ */
.phone {
  --phone-w: 286px;
  --bezel: 3px;
  --radius-outer: 50px;
  --radius-inner: 44px;
  position: relative;
  display: inline-flex;
  flex-direction: column;
  width: var(--phone-w);
  border-radius: var(--radius-outer);
  padding: var(--bezel);
  background:
    linear-gradient(155deg, #5a5a62 0%, #3a3a42 18%, #1c1c22 42%, #2e2e36 68%, #4a4a52 100%);
  border: 1px solid rgba(255, 255, 255, 0.22);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.12),
    inset 0 1px 2px rgba(255, 255, 255, 0.18),
    0 0 0 1px rgba(0, 0, 0, 0.85),
    0 32px 80px rgba(0, 0, 0, 0.72),
    0 0 90px rgba(121, 80, 242, 0.18);
}
/* volume buttons (left) */
.phone::before {
  content: "";
  position: absolute;
  left: -2px;
  top: 17%;
  width: 3px;
  height: 5.5%;
  border-radius: 2px 0 0 2px;
  background: linear-gradient(180deg, #6a6a72, #3a3a42);
  box-shadow: 0 7.5% 0 #4a4a52, 0 14% 0 #4a4a52;
}
/* power button (right) */
.phone::after {
  content: "";
  position: absolute;
  right: -2px;
  top: 22%;
  width: 3px;
  height: 9.5%;
  border-radius: 0 2px 2px 0;
  background: linear-gradient(180deg, #6a6a72, #3a3a42);
}
/* Экран iPhone 17 Pro Max: 1320×2868 */
.phone__screen {
  width: 100%;
  aspect-ratio: 1320 / 2868;
  border-radius: var(--radius-inner);
  overflow: hidden;
  background: #0c0e17;
  position: relative;
  flex: none;
  box-sizing: border-box;
}
.phone__screen img {
  width: 100%;
  height: 100%;
  object-fit: fill;
  display: block;
}
.phone--main { margin: 0 auto; transform: rotate(3deg); }
.phone--tilt { transform: rotate(-4deg); margin: 0 auto; }
.phone--small {
  --phone-w: 220px;
  --radius-outer: 38px;
  --radius-inner: 34px;
}

.hero__visual { position: relative; display: flex; justify-content: center; }
.float-card {
  position: absolute;
  display: flex; align-items: center; gap: 12px;
  background: rgba(21, 21, 31, 0.88);
  backdrop-filter: blur(12px);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 12px 18px;
  box-shadow: 0 16px 44px rgba(0, 0, 0, 0.5);
  animation: floaty 5s ease-in-out infinite;
}
.float-card b { display: block; font-size: 0.88rem; }
.float-card small { color: var(--muted); font-size: 0.78rem; }
.float-card__icon {
  width: 36px; height: 36px; flex: none; border-radius: 12px;
  display: grid; place-items: center; font-weight: 800; font-size: 1rem;
}
.float-card__icon--green { background: rgba(64, 192, 87, 0.18); color: #69db7c; }
.float-card__icon--blue { background: rgba(34, 139, 230, 0.18); color: #4dabf7; }
.float-card__icon--purple { background: rgba(121, 80, 242, 0.2); color: #b197fc; }
.float-card--1 { top: 12%; left: -4%; animation-delay: 0s; }
.float-card--2 { top: 46%; right: -6%; animation-delay: 1.4s; }
.float-card--3 { bottom: 8%; left: 0%; animation-delay: 2.6s; }
@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* ============ Stats ============ */
.stats { padding: 30px 0 10px; }
.stats__grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 30px 36px;
}
.stat b { font-family: var(--font-display); font-size: 1.5rem; display: block; color: var(--cyan); }
.stat span { color: var(--muted); font-size: 0.88rem; }

/* ============ Sections ============ */
.section { padding: 96px 0; }
.section__head { max-width: 680px; margin-bottom: 52px; }
.section__head p { color: var(--muted); margin-top: 14px; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.step {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: transform 0.25s ease, border-color 0.25s ease;
}
.step:hover { transform: translateY(-6px); border-color: rgba(45, 225, 194, 0.35); }
.step__num {
  width: 42px; height: 42px; border-radius: 14px;
  display: grid; place-items: center;
  font-family: var(--font-display); font-weight: 700;
  background: linear-gradient(135deg, rgba(45, 225, 194, 0.18), rgba(121, 80, 242, 0.18));
  color: var(--cyan);
  margin-bottom: 18px;
}
.step p { color: var(--muted); font-size: 0.92rem; margin-top: 8px; }

/* Feature rows */
.section--feature { padding: 72px 0; }
.feature { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.feature--reverse .feature__media { order: 2; }
.feature--reverse .feature__text { order: 1; }
.feature__text p { color: var(--muted); margin-top: 14px; }
.illo {
  border-radius: 24px;
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.55), 0 0 80px rgba(121, 80, 242, 0.12);
  border: 1px solid var(--card-border);
}
.illo--fox { box-shadow: 0 28px 70px rgba(0, 0, 0, 0.55), 0 0 90px rgba(45, 225, 194, 0.14); }
.feature__media--phone { display: flex; justify-content: center; }

.checks { list-style: none; margin: 22px 0 26px; display: grid; gap: 12px; }
.checks li { position: relative; padding-left: 34px; color: #c8cdde; font-size: 0.97rem; }
.checks li::before {
  content: "✓";
  position: absolute; left: 0; top: 1px;
  width: 22px; height: 22px; border-radius: 8px;
  display: grid; place-items: center;
  font-size: 0.75rem; font-weight: 800;
}
.checks--blue li::before { background: rgba(34, 139, 230, 0.16); color: #4dabf7; }
.checks--green li::before { background: rgba(64, 192, 87, 0.16); color: #69db7c; }
.checks--purple li::before { background: rgba(121, 80, 242, 0.18); color: #b197fc; }

.calc {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-left: 3px solid var(--cyan);
  border-radius: 14px;
  padding: 18px 22px;
  margin-bottom: 28px;
  display: grid; gap: 4px;
}
.calc__label { font-size: 0.72rem; font-weight: 800; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }
.calc__formula { font-size: 1.02rem; }
.calc__formula b { color: var(--cyan); font-family: var(--font-display); font-size: 1.05rem; }
.calc__note { font-size: 0.85rem; color: var(--muted); }

/* ============ Grandma band ============ */
.band {
  margin: 40px 0;
  background: linear-gradient(120deg, rgba(121, 80, 242, 0.14), rgba(45, 225, 194, 0.08));
  border-top: 1px solid rgba(121, 80, 242, 0.25);
  border-bottom: 1px solid rgba(45, 225, 194, 0.2);
  padding: 80px 0;
}
.band__inner { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 60px; align-items: center; }
.band__media img {
  border-radius: 26px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6), 0 0 100px rgba(214, 60, 230, 0.15);
  border: 1px solid var(--card-border);
}
.band__text p { color: #c8cdde; margin-top: 16px; font-size: 1.05rem; }
.band__text p b { color: var(--cyan); }
.band__quote {
  margin-top: 26px;
  padding: 20px 24px;
  background: rgba(10, 10, 18, 0.55);
  border-radius: 16px;
  border: 1px solid var(--card-border);
  font-style: italic;
  color: #d9dcec;
}
.band__quote span { display: block; margin-top: 8px; font-style: normal; font-size: 0.85rem; color: var(--muted); }

/* ============ Cards (safety / personas) ============ */
.cards4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 30px 24px;
  transition: transform 0.25s ease, border-color 0.25s ease;
}
.card:hover { transform: translateY(-6px); border-color: rgba(121, 80, 242, 0.4); }
.card__icon, .card__emoji { font-size: 2rem; margin-bottom: 16px; }
.card p { color: var(--muted); font-size: 0.92rem; margin-top: 8px; }
.persona__income {
  display: inline-block;
  margin-top: 10px !important;
  font-weight: 800; font-size: 0.85rem !important;
  color: var(--cyan) !important;
  background: rgba(45, 225, 194, 0.1);
  border-radius: 999px;
  padding: 4px 14px;
}

/* ============ Reviews ============ */
.reviews { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.review {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 30px 28px;
  display: flex; flex-direction: column; gap: 16px;
}
.review__stars { color: #ffd43b; letter-spacing: 3px; }
.review p { color: #c8cdde; font-size: 0.95rem; flex: 1; }
.review__author b { display: block; }
.review__author span { color: var(--muted); font-size: 0.83rem; }

/* ============ FAQ ============ */
.faq { display: grid; gap: 12px; }
.faq__item {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  overflow: hidden;
  transition: border-color 0.25s;
}
.faq__item[open] { border-color: rgba(45, 225, 194, 0.35); }
.faq__item summary {
  cursor: pointer;
  list-style: none;
  padding: 20px 56px 20px 24px;
  font-weight: 700;
  position: relative;
  user-select: none;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after {
  content: "+";
  position: absolute; right: 22px; top: 50%;
  transform: translateY(-50%);
  font-size: 1.4rem; color: var(--cyan);
  transition: transform 0.25s;
}
.faq__item[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq__item p { padding: 0 24px 22px; color: var(--muted); font-size: 0.95rem; }

/* ============ Download ============ */
.download { position: relative; padding: 110px 0 90px; overflow: hidden; }
.download__glow {
  position: absolute; left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  width: 900px; height: 600px;
  background: radial-gradient(closest-side, rgba(121, 80, 242, 0.28), transparent);
  pointer-events: none;
}
.download__inner { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 48px; align-items: center; position: relative; }
.download__text p { color: var(--muted); margin-top: 14px; max-width: 460px; }
.store-badges { display: flex; gap: 14px; margin-top: 30px; flex-wrap: wrap; }
.store-badge {
  display: inline-flex; align-items: center; gap: 12px;
  background: #fff; color: #0a0a12;
  border-radius: 14px;
  padding: 11px 22px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.store-badge:hover { transform: translateY(-3px); box-shadow: 0 14px 40px rgba(255, 255, 255, 0.18); }
.store-badge small { display: block; font-size: 0.68rem; opacity: 0.65; line-height: 1.2; }
.store-badge b { font-size: 1.02rem; line-height: 1.2; }
.download__visual { display: flex; justify-content: center; position: relative; min-height: 580px; align-items: center; }
.phone--left { transform: rotate(-9deg) translateX(34px) translateY(14px); z-index: 1; }
.phone--right { transform: rotate(7deg) translateX(-26px); z-index: 2; }

/* ============ Footer ============ */
.footer {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 50px 0 40px;
  background: var(--bg-soft);
}
.footer__inner { display: grid; gap: 14px; justify-items: center; text-align: center; }
.footer__inner > p { color: var(--muted); font-size: 0.9rem; }
.footer__nav { display: flex; gap: 22px; flex-wrap: wrap; justify-content: center; }
.footer__nav a { color: var(--muted); font-size: 0.88rem; transition: color 0.2s; }
.footer__nav a:hover { color: var(--cyan); }
.footer__copy { font-size: 0.8rem !important; opacity: 0.7; }

/* ============ Reveal animation ============ */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal--delay { transition-delay: 0.15s; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ============ Responsive ============ */
@media (max-width: 1024px) {
  .steps, .cards4 { grid-template-columns: repeat(2, 1fr); }
  .stats__grid { grid-template-columns: repeat(2, 1fr); }
  .reviews { grid-template-columns: 1fr; }
}
@media (max-width: 860px) {
  .nav { display: none; }
  .nav.is-open {
    display: flex; flex-direction: column;
    position: absolute; top: 68px; left: 0; right: 0;
    background: rgba(10, 10, 18, 0.97);
    padding: 22px 5%;
    border-bottom: 1px solid var(--card-border);
    gap: 18px;
  }
  .burger {
    display: grid; gap: 5px;
    margin-left: auto;
    background: none; border: none; cursor: pointer; padding: 8px;
  }
  .burger span { width: 22px; height: 2px; background: var(--text); border-radius: 2px; }
  .header__inner .btn { margin-left: 0; }
  .hero { padding-top: 120px; }
  .hero__inner, .feature, .band__inner, .download__inner { grid-template-columns: 1fr; }
  .feature--reverse .feature__media { order: 0; }
  .feature--reverse .feature__text { order: 1; }
  .hero__visual { margin-top: 40px; }
  .float-card--1 { left: 0; }
  .float-card--2 { right: 0; }
  .phone { --phone-w: 250px; --radius-outer: 44px; --radius-inner: 40px; }
  .download__visual { min-height: 460px; }
  .section { padding: 64px 0; }
}
@media (max-width: 560px) {
  .steps, .cards4 { grid-template-columns: 1fr; }
  .stats__grid { grid-template-columns: 1fr 1fr; padding: 24px; }
  .float-card { padding: 9px 14px; }
  .float-card b { font-size: 0.8rem; }
  .phone--small { --phone-w: 175px; --radius-outer: 32px; --radius-inner: 29px; }
}