/* ============================================================
   KutsanivBud — квіз-лендінг «Проєкт будинку»
   Стиль оригіналу kutsanivbud.com.ua:
   мінімалізм, темно-синій rgb(0,21,85) як єдиний акцент,
   uppercase-заголовки, прямокутні кнопки, тонкі лінії,
   контурна «креслярська» іконографіка.
   #0080FF — лише для hover-станів посилань/кнопок.
   ============================================================ */

/* Фірмовий шрифт оригінального сайту (custom_72229 → NAMU 1930) */
@font-face {
  font-family: 'NAMU 1930';
  src: url('../fonts/namu-1930.woff2') format('woff2');
  font-weight: 100 900; /* єдиний накреслений файл — використовуємо для всіх ваг */
  font-style: normal;
  font-display: swap;
}

:root {
  --navy: #001555;
  --navy-soft: rgba(0, 21, 85, .5);
  --navy-line: rgba(0, 21, 85, .15);
  --navy-line-soft: rgba(0, 21, 85, .08);
  --hover-blue: #0080ff;
  --bg: #ffffff;
  --bg-gray: #f2f2f2;
  --surface: #ffffff;
  --text: #001555;
  --muted: rgba(0, 21, 85, .55);
  --light: #f2f2f2;
  --ease: cubic-bezier(.22, 1, .36, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: 'NAMU 1930', 'Montserrat', -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  letter-spacing: .1px;
  -webkit-font-smoothing: antialiased;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

img { max-width: 100%; display: block; }
button { font: inherit; cursor: pointer; border: none; background: none; }

.container {
  width: min(1160px, 100% - 2.5rem);
  margin-inline: auto;
}

/* ---------- Кнопки: прямокутні, суцільний синій ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .7rem;
  font-weight: 600;
  font-size: .82rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-radius: 0;
  padding: 1rem 1.8rem;
  transition: background .25s var(--ease), color .25s var(--ease),
              border-color .25s var(--ease), transform .25s var(--ease);
  white-space: nowrap;
}
.btn svg { width: 1.1em; height: 1.1em; flex: none; }

.btn--primary {
  position: relative;
  overflow: hidden;
  background: var(--navy);
  color: var(--light);
}
.btn--primary:hover { background: var(--hover-blue); transform: translateY(-2px); }
.btn--primary:active { transform: translateY(0); }
.btn--primary:disabled { opacity: .4; pointer-events: none; }

/* «сяйво», що пробігає по кнопці */
.btn--primary::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 35%, rgba(255, 255, 255, .25) 50%, transparent 65%);
  transform: translateX(-120%);
  transition: none;
  pointer-events: none;
}
.btn--primary:hover::after { transform: translateX(120%); transition: transform .8s var(--ease); }

/* ripple при кліку */
.ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, .35);
  transform: scale(0);
  animation: ripple .55s var(--ease) forwards;
  pointer-events: none;
}
@keyframes ripple {
  to { transform: scale(2.6); opacity: 0; }
}

.btn--ghost {
  color: var(--navy);
  border: 1px solid var(--navy);
  background: transparent;
}
.btn--ghost:hover { border-color: var(--hover-blue); color: var(--hover-blue); }

.btn--back {
  color: var(--muted);
  font-weight: 600;
  padding-left: .9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.btn--back:hover:not(:disabled) { color: var(--navy); }
.btn--back:disabled { opacity: .35; cursor: default; }

.btn--lg { padding: 1.2rem 2.4rem; font-size: .88rem; }
.btn--full { width: 100%; }

/* ---------- Header ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, .88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--navy-line);
  transition: box-shadow .35s var(--ease);
}
.header.is-scrolled { box-shadow: 0 10px 30px -18px rgba(0, 21, 85, .3); }

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: .9rem;
}
.header__nav { margin-left: auto; }
.header__link {
  font-size: .82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--navy);
  text-decoration: none;
  padding: .5rem .9rem;
  transition: color .2s;
}
.header__link:hover { color: var(--hover-blue); }

.logo { display: inline-flex; align-items: center; text-decoration: none; }
.logo__img {
  width: auto;
  height: 26px;
  transition: opacity .2s;
}
.logo:hover .logo__img { opacity: .75; }

/* ---------- Hero ---------- */
.hero { flex: 1; padding-block: clamp(2.5rem, 6vw, 5.5rem); overflow: clip; }

/* поява елементів хіро каскадом при завантаженні */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(26px); }
  to   { opacity: 1; transform: translateY(0); }
}
.hero__badge,
.hero__title,
.hero__subtitle,
.hero__benefits li,
.hero__cta {
  opacity: 0;
  animation: fadeUp .7s var(--ease) forwards;
}
.hero__badge        { animation-delay: .05s; }
.hero__title        { animation-delay: .15s; }
.hero__subtitle     { animation-delay: .28s; }
.hero__benefits li:nth-child(1) { animation-delay: .40s; }
.hero__benefits li:nth-child(2) { animation-delay: .48s; }
.hero__benefits li:nth-child(3) { animation-delay: .56s; }
.hero__benefits li:nth-child(4) { animation-delay: .64s; }
.hero__cta          { animation-delay: .78s; }

.hero__inner {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}

/* лейбл у «дужках», як [Знайомство] на оригіналі */
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-size: .78rem;
  font-weight: 500;
  color: var(--muted);
  margin-bottom: 1.5rem;
}
.hero__badge::before { content: '['; color: var(--navy-soft); }
.hero__badge::after  { content: ']'; color: var(--navy-soft); }
.pulse-dot {
  width: 7px; height: 7px;
  background: var(--navy);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(0, 21, 85, .4); }
  70%  { box-shadow: 0 0 0 8px rgba(0, 21, 85, 0); }
  100% { box-shadow: 0 0 0 0 rgba(0, 21, 85, 0); }
}

.hero__title {
  font-size: clamp(1.55rem, 3.2vw, 2.55rem);
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: .5px;
  text-transform: uppercase;
  color: var(--navy);
}
.accent { color: var(--navy); border-bottom: 3px solid var(--navy); }

.hero__subtitle {
  margin-top: 1.2rem;
  font-size: clamp(.9rem, 1.3vw, 1rem);
  line-height: 1.65;
  color: var(--muted);
  max-width: 34rem;
}

.hero__benefits {
  list-style: none;
  margin-top: 1.7rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--navy-line);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .8rem 1.4rem;
}
.hero__benefits li {
  display: flex;
  align-items: center;
  gap: .75rem;
  font-size: .85rem;
  font-weight: 500;
  color: var(--text);
}
.benefit-ico {
  width: 38px; height: 38px;
  flex: none;
  border: 1px solid var(--navy-line);
  color: var(--navy);
  display: grid;
  place-items: center;
}
.benefit-ico svg { width: 19px; height: 19px; }

.hero__cta { margin-top: 2.1rem; display: flex; align-items: center; gap: 1.4rem; flex-wrap: wrap; }
.hero__note {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: .8rem;
  color: var(--muted);
  font-weight: 500;
}
.hero__note svg { width: 16px; height: 16px; }

/* фото в hero */
.hero__media { position: relative; }
.hero__photo { overflow: hidden; }
.hero__photo img { width: 100%; height: 100%; object-fit: cover; }
.hero__photo--main {
  aspect-ratio: 4 / 3.4;
  opacity: 0;
  animation: photoReveal 1s .2s var(--ease) forwards;
}
.hero__photo--main img {
  animation: kenBurns 14s 1s var(--ease) infinite alternate;
}
@keyframes photoReveal {
  from { opacity: 0; transform: translateY(30px) scale(.96); clip-path: inset(8% 8% 8% 8%); }
  to   { opacity: 1; transform: none; clip-path: inset(0 0 0 0); }
}
@keyframes kenBurns {
  from { transform: scale(1); }
  to   { transform: scale(1.07) translate(1.5%, -1%); }
}
.hero__photo--small {
  position: absolute;
  left: -14%;
  bottom: -9%;
  width: 44%;
  aspect-ratio: 4 / 3;
  border: 5px solid var(--bg);
  opacity: 0;
  animation: popIn .6s .8s var(--ease) forwards, float 7s 1.5s ease-in-out infinite;
}
@keyframes popIn {
  from { opacity: 0; transform: scale(.7); }
  to   { opacity: 1; transform: scale(1); }
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-10px); }
}
.hero__stat {
  opacity: 0;
  animation: popIn .55s 1.05s var(--ease) forwards;
  position: absolute;
  top: 6%;
  right: -4%;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(10px);
  border: 1px solid var(--navy-line);
  padding: .85rem 1.15rem;
  max-width: 175px;
  font-size: .72rem;
  color: var(--muted);
  line-height: 1.35;
}
.hero__stat b {
  display: block;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--navy);
  letter-spacing: .5px;
}

/* ---------- Проєкти ---------- */
.projects {
  padding-block: clamp(3rem, 7vw, 5.5rem);
  background: var(--bg-gray);
}

.projects__head {
  max-width: 640px;
  margin-bottom: clamp(1.8rem, 4vw, 3rem);
}
.projects__eyebrow {
  display: inline-block;
  font-size: .78rem;
  font-weight: 500;
  letter-spacing: .06em;
  color: var(--muted);
  margin-bottom: 1rem;
}
.projects__eyebrow::before { content: '[ '; }
.projects__eyebrow::after  { content: ' ]'; }
.projects__title {
  font-size: clamp(1.35rem, 2.6vw, 1.85rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--navy);
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--navy);
}
.projects__subtitle { margin-top: 1rem; color: var(--muted); font-size: .9rem; line-height: 1.65; }

.projects__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
  align-items: stretch;
}

.project {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--navy-line);
  overflow: hidden;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease);
}
.project:hover {
  transform: translateY(-6px);
  border-color: var(--navy);
  box-shadow: 0 24px 50px -24px rgba(0, 21, 85, .35);
}

.project__media { position: relative; overflow: hidden; }
.project__media img {
  width: 100%;
  aspect-ratio: 16 / 10.5;
  object-fit: cover;
  transition: transform .6s var(--ease);
}
.project:hover .project__media img { transform: scale(1.06); }

.project__tags {
  position: absolute;
  left: .8rem;
  bottom: .8rem;
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
}
.tag {
  font-size: .66rem;
  font-weight: 600;
  letter-spacing: .5px;
  color: var(--light);
  background: rgba(0, 21, 85, .82);
  backdrop-filter: blur(6px);
  padding: .32rem .7rem;
}

.project__body {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 1.3rem 1.35rem 1.45rem;
}
.project__name {
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--navy);
  padding-bottom: .85rem;
  border-bottom: 1px solid var(--navy-line);
}

.project__stats {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: .55rem;
  margin-top: 1rem;
}
.project__stats li {
  flex: 1 1 30%;
  min-width: 92px;
  background: var(--bg-gray);
  padding: .6rem .7rem;
  line-height: 1.25;
}
.project__stats b {
  display: block;
  font-size: .96rem;
  font-weight: 700;
  color: var(--navy);
  white-space: nowrap;
}
.project__stats span {
  font-size: .66rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--muted);
}

.project__specs {
  list-style: none;
  margin-top: 1rem;
  display: grid;
  gap: .5rem;
}
.project__specs li {
  display: flex;
  align-items: center;
  gap: .6rem;
  font-size: .8rem;
  font-weight: 500;
  color: var(--text);
}
.project__specs svg { width: 18px; height: 18px; flex: none; color: var(--navy); }

/* розгортання складу приміщень */
.project__rooms { margin-top: 1rem; border-top: 1px dashed var(--navy-line); }
.project__rooms summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .6rem;
  padding: .85rem 0 .55rem;
  font-size: .78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--navy);
  transition: color .2s;
}
.project__rooms summary::-webkit-details-marker { display: none; }
.project__rooms summary:hover { color: var(--hover-blue); }
.project__rooms summary svg { width: 16px; height: 16px; transition: transform .3s var(--ease); }
.project__rooms[open] summary svg { transform: rotate(180deg); }
.project__rooms ul {
  list-style: none;
  padding-bottom: .4rem;
  display: grid;
  gap: .32rem;
  animation: roomsIn .35s var(--ease);
}
@keyframes roomsIn {
  from { opacity: 0; transform: translateY(-6px); }
}
.project__rooms li {
  font-size: .8rem;
  color: var(--muted);
  padding-left: 1.1rem;
  position: relative;
}
.project__rooms li::before {
  content: '';
  position: absolute;
  left: .1rem;
  top: .55em;
  width: 5px; height: 5px;
  background: var(--navy);
}

.project__actions { margin-top: auto; padding-top: 1.2rem; display: grid; gap: .85rem; }
.project__actions .btn { width: 100%; }
.project__contacts {
  font-size: .74rem;
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .25rem .6rem;
}
.project__contacts a {
  color: var(--navy);
  font-weight: 700;
  text-decoration: none;
  transition: color .2s;
}
.project__contacts a:hover { color: var(--hover-blue); text-decoration: underline; }

/* синя плашка-банер, як на оригіналі */
.projects__cta {
  margin-top: clamp(2rem, 5vw, 3.2rem);
  background: var(--navy);
  color: var(--light);
  padding: clamp(1.8rem, 4vw, 2.6rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.4rem;
  flex-wrap: wrap;
}
.projects__cta p { max-width: 460px; font-size: .95rem; font-weight: 500; line-height: 1.6; }
.projects__cta .btn--primary { background: var(--light); color: var(--navy); }
.projects__cta .btn--primary:hover { background: #fff; color: var(--hover-blue); }
.projects__cta .btn--primary::after {
  background: linear-gradient(105deg, transparent 35%, rgba(0, 21, 85, .12) 50%, transparent 65%);
}

/* ---------- Split-анімація заголовків ----------
   JS ріже заголовки [data-split] на слова/символи;
   кожен символ виїжджає знизу з маски слова. */
[data-split] .st-word {
  display: inline-block;
  overflow: hidden;
  vertical-align: bottom;
}
[data-split] .st-char {
  display: inline-block;
  opacity: 0;
  transform: translateY(115%);
}
[data-split].st-run .st-char,
.in-view [data-split] .st-char {
  animation: charIn .6s var(--ease) forwards;
  animation-delay: calc(var(--i) * 24ms);
}
@keyframes charIn {
  from { opacity: 0; transform: translateY(115%) rotate(5deg); }
  to   { opacity: 1; transform: translateY(0) rotate(0); }
}
/* hero-заголовок анімують самі символи — власний fadeUp вимикаємо */
.hero__title[data-split] { opacity: 1; animation: none; }
/* підкреслення акценту — по словах, щоб не ламати маски */
.accent { border-bottom: none; }
.accent .st-word { border-bottom: 3px solid var(--navy); }

/* scroll-reveal */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.reveal.in-view { opacity: 1; transform: none; }
.projects__grid .reveal:nth-child(2) { transition-delay: .12s; }
.projects__grid .reveal:nth-child(3) { transition-delay: .24s; }

/* ---------- Квіз (overlay) ---------- */
.quiz {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 1rem;
}
.quiz[hidden] { display: none; }

.quiz__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 21, 85, .55);
  backdrop-filter: blur(6px);
  animation: fadeIn .3s var(--ease);
}
@keyframes fadeIn { from { opacity: 0; } }

.quiz__window {
  position: relative;
  width: min(860px, 100%);
  max-height: min(92dvh, 780px);
  background: var(--surface);
  border: 1px solid var(--navy-line);
  box-shadow: 0 40px 90px -30px rgba(0, 21, 85, .5);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: slideUp .45s var(--ease);
}
@keyframes slideUp {
  from { opacity: 0; transform: translateY(26px) scale(.98); }
}

.quiz__head {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.5rem 1.7rem 1rem;
}
.quiz__head-text h2 {
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--navy);
  line-height: 1.3;
}
.quiz__head-text p { margin-top: .45rem; font-size: .82rem; color: var(--muted); }

.quiz__close {
  margin-left: auto;
  flex: none;
  width: 40px; height: 40px;
  display: grid;
  place-items: center;
  color: var(--muted);
  border: 1px solid var(--navy-line);
  transition: border-color .2s, color .2s, transform .2s;
}
.quiz__close:hover { border-color: var(--navy); color: var(--navy); transform: rotate(90deg); }
.quiz__close svg { width: 18px; height: 18px; }

/* прогрес — тонка «креслярська» лінія */
.quiz__progress { padding: 0 1.7rem .4rem; }
.quiz__progress-info {
  display: flex;
  justify-content: space-between;
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: .5px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: .5rem;
}
.quiz__progress-info #progress-percent { color: var(--navy); font-weight: 700; }
.quiz__progress-track {
  height: 3px;
  background: var(--navy-line);
  overflow: hidden;
}
.quiz__progress-bar {
  position: relative;
  overflow: hidden;
  height: 100%;
  width: 0%;
  background: var(--navy);
  transition: width .5s var(--ease);
}
/* шимер, що пробігає по заповненій частині */
.quiz__progress-bar::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, transparent 30%, rgba(255, 255, 255, .5) 50%, transparent 70%);
  animation: shimmer 2.2s ease-in-out infinite;
}
@keyframes shimmer {
  0%   { transform: translateX(-100%); }
  60%, 100% { transform: translateX(100%); }
}

/* тіло квізу */
.quiz__body {
  padding: 1.2rem 1.7rem;
  overflow-y: auto;
  flex: 1;
}

.quiz-step { animation: stepIn .4s var(--ease); }
@keyframes stepIn {
  from { opacity: 0; transform: translateX(22px); }
}
.quiz-step.is-back { animation: stepInBack .4s var(--ease); }
@keyframes stepInBack {
  from { opacity: 0; transform: translateX(-22px); }
}

.quiz-step__title {
  font-size: clamp(1rem, 1.9vw, 1.2rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--navy);
  margin-bottom: 1.2rem;
}
.quiz-step__hint {
  margin: -.8rem 0 1.2rem;
  font-size: .8rem;
  color: var(--muted);
  font-weight: 500;
}
.quiz-step__hint::before { content: '[ '; }
.quiz-step__hint::after  { content: ' ]'; }

/* варіанти відповідей — каскадна поява на кожному кроці */
.options { display: grid; gap: .8rem; }
.quiz-step:not([hidden]) .option {
  opacity: 0;
  animation: fadeUp .45s var(--ease) forwards;
}
.quiz-step:not([hidden]) .option:nth-child(1) { animation-delay: .05s; }
.quiz-step:not([hidden]) .option:nth-child(2) { animation-delay: .11s; }
.quiz-step:not([hidden]) .option:nth-child(3) { animation-delay: .17s; }
.quiz-step:not([hidden]) .option:nth-child(4) { animation-delay: .23s; }
.quiz-step:not([hidden]) .option:nth-child(5) { animation-delay: .29s; }

.options--cols-3 { grid-template-columns: repeat(3, 1fr); }
.options--cols-4 { grid-template-columns: repeat(4, 1fr); }
.options--photos { grid-template-columns: repeat(3, 1fr); }

.option input { position: absolute; opacity: 0; pointer-events: none; }

.option__card {
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: .7rem;
  text-align: center;
  padding: 1.15rem .9rem;
  background: var(--surface);
  border: 1px solid var(--navy-line);
  font-size: .84rem;
  font-weight: 500;
  color: var(--text);
  cursor: pointer;
  transition: border-color .2s, background .2s, transform .25s var(--ease), box-shadow .25s var(--ease);
}
.option__card:hover {
  transform: translateY(-3px);
  border-color: var(--navy);
  box-shadow: 0 14px 30px -18px rgba(0, 21, 85, .4);
}

.option input:checked + .option__card {
  border: 2px solid var(--navy);
  padding: calc(1.15rem - 1px) calc(.9rem - 1px);
  box-shadow: 0 14px 30px -16px rgba(0, 21, 85, .45);
  animation: cardPop .35s var(--ease);
}
@keyframes cardPop {
  0%   { transform: scale(1); }
  45%  { transform: scale(1.045); }
  100% { transform: scale(1); }
}
.option input:focus-visible + .option__card { outline: 2px solid var(--hover-blue); outline-offset: 2px; }

.option__ico {
  width: 52px; height: 52px;
  border: 1px solid var(--navy-line);
  color: var(--navy);
  display: grid;
  place-items: center;
  transition: background .2s, color .2s, border-color .2s;
}
.option__ico svg { width: 27px; height: 27px; }
.option input:checked + .option__card .option__ico {
  background: var(--navy);
  border-color: var(--navy);
  color: #fff;
}

.option__num {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--navy);
  letter-spacing: .5px;
}

/* варіанти з фото */
.option--photo .option__card { padding: 0; overflow: hidden; gap: 0; justify-content: flex-start; }
.option--photo input:checked + .option__card { padding: 0; }
.option--photo img {
  width: 100%;
  aspect-ratio: 16 / 10.5;
  object-fit: cover;
  transition: transform .5s var(--ease);
}
.option--photo .option__card:hover img { transform: scale(1.05); }
.option--photo .option__label {
  padding: .75rem .5rem .85rem;
  position: relative;
  text-transform: uppercase;
  letter-spacing: .5px;
  font-size: .76rem;
  font-weight: 600;
}
.option--photo input:checked + .option__card .option__label::after {
  content: '✓';
  margin-left: .45rem;
  display: inline-grid;
  place-items: center;
  width: 1.25rem; height: 1.25rem;
  font-size: .7rem;
  background: var(--navy);
  color: #fff;
  vertical-align: middle;
}

/* фінальна форма */
.quiz-step--final { max-width: 480px; margin-inline: auto; }
.quiz-step--final:not([hidden]) .field,
.quiz-step--final:not([hidden]) #submit-btn {
  opacity: 0;
  animation: fadeUp .45s var(--ease) forwards;
}
.quiz-step--final:not([hidden]) .field:nth-of-type(1) { animation-delay: .05s; }
.quiz-step--final:not([hidden]) .field:nth-of-type(2) { animation-delay: .13s; }
.quiz-step--final:not([hidden]) .field--messenger     { animation-delay: .21s; }
.quiz-step--final:not([hidden]) #submit-btn           { animation-delay: .3s; }

.field { margin-bottom: 1.1rem; }
.field__label {
  display: block;
  font-size: .74rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--navy);
  margin-bottom: .45rem;
}
.field__input {
  width: 100%;
  font: inherit;
  font-size: .95rem;
  padding: .9rem 1.05rem;
  border: 1px solid var(--navy-line);
  background: var(--surface);
  color: var(--text);
  border-radius: 0;
  transition: border-color .2s;
}
.field__input:focus { outline: none; border-color: var(--navy); }
.field__input::placeholder { color: rgba(0, 21, 85, .35); }

.field__error {
  display: none;
  font-size: .74rem;
  color: #c92a2a;
  font-weight: 600;
  margin-top: .35rem;
}
.field.is-invalid .field__input { border-color: #c92a2a; }
.field.is-invalid .field__error { display: block; }

.field--messenger { border: none; }
.messenger-options { display: flex; flex-wrap: wrap; gap: .55rem; }
.messenger input { position: absolute; opacity: 0; pointer-events: none; }
.messenger__chip {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .65rem 1rem;
  border: 1px solid var(--navy-line);
  background: var(--surface);
  font-size: .78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--text);
  cursor: pointer;
  transition: border-color .2s, background .2s, color .2s;
}
.messenger__chip svg { width: 16px; height: 16px; }
.messenger__chip:hover { border-color: var(--navy); }
.messenger input:checked + .messenger__chip {
  border-color: var(--navy);
  background: var(--navy);
  color: #fff;
}
.messenger input:focus-visible + .messenger__chip { outline: 2px solid var(--hover-blue); outline-offset: 2px; }

#lead-form .btn { margin-top: .4rem; }
.btn.is-loading { pointer-events: none; opacity: .7; }
.btn.is-loading svg { animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.form-error {
  margin-top: .8rem;
  font-size: .8rem;
  font-weight: 600;
  color: #c92a2a;
  text-align: center;
}
.form-privacy {
  margin-top: .9rem;
  font-size: .7rem;
  color: var(--muted);
  text-align: center;
}

/* навігація квізу */
.quiz__nav {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.7rem 1.4rem;
  border-top: 1px solid var(--navy-line);
}

/* ---------- Footer ---------- */
.footer {
  background: var(--navy);
  color: rgba(242, 242, 242, .7);
  margin-top: auto;
}
.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding-block: 1.5rem;
}
/* синє лого стає білим на темному футері */
.logo--footer .logo__img { filter: brightness(0) invert(1); }
.footer__copy { font-size: .76rem; }
.footer__copy a { color: var(--light); transition: color .2s; }
.footer__copy a:hover { color: var(--hover-blue); }

/* блокування скролу під overlay */
body.quiz-open { overflow: hidden; }

/* ============================================================
   Адаптив: Laptop 1024 → Tablet 768 → 640 → Mobile L 425
   → Mobile M 375 → Mobile S 320
   ============================================================ */

/* ---------- Laptop ≤1024px ---------- */
@media (max-width: 1024px) {
  .container { width: min(1160px, 100% - 2rem); }

  .hero { padding-block: clamp(2rem, 5vw, 3.5rem); }
  .hero__inner { gap: 2rem; grid-template-columns: 1fr 1fr; }
  .hero__benefits { gap: .6rem 1rem; }
  .hero__benefits li { font-size: .8rem; }
  .hero__stat { right: 0; }

  .projects__grid { gap: 1rem; }
  .project__body { padding: 1.1rem 1.1rem 1.25rem; }
  .project__stats li { min-width: 82px; padding: .5rem .6rem; }
  .project__stats b { font-size: .88rem; }
}

/* ---------- Tablet ≤768px ---------- */
@media (max-width: 768px) {
  .header__inner { padding-block: .75rem; }

  .hero__inner { grid-template-columns: 1fr; gap: 3rem; }
  .hero__media { order: -1; max-width: 620px; margin-inline: auto; width: 100%; }
  .hero__photo--small { left: auto; right: -3%; bottom: -12%; }
  .hero__stat { top: auto; bottom: 8%; left: -2%; right: auto; }
  .hero__content { max-width: 620px; margin-inline: auto; }
  .hero__title { font-size: clamp(1.45rem, 3.6vw, 1.9rem); }

  .projects { padding-block: 3rem; }
  .projects__grid { grid-template-columns: repeat(2, 1fr); max-width: none; }
  .projects__grid .reveal:nth-child(3) { transition-delay: 0s; }
  .projects__cta { flex-direction: column; align-items: center; text-align: center; gap: 1.2rem; }

  .options--cols-4 { grid-template-columns: repeat(2, 1fr); }
  .options--photos { grid-template-columns: repeat(2, 1fr); }

  .footer__inner { justify-content: center; text-align: center; }
}

/* ---------- ≤640px: квіз на весь екран ---------- */
@media (max-width: 640px) {
  .header__cta { display: none; }

  .hero { padding-block: 1.5rem 3rem; }
  .hero__benefits { grid-template-columns: 1fr; }
  .hero__cta { gap: 1rem; }
  .hero__cta .btn { width: 100%; }

  .projects__grid { grid-template-columns: 1fr; max-width: 500px; margin-inline: auto; }
  .projects__grid .reveal:nth-child(2) { transition-delay: 0s; }

  .quiz { padding: 0; align-items: stretch; }
  .quiz__window { width: 100%; max-height: 100dvh; height: 100dvh; border: none; }
  .quiz__head, .quiz__progress, .quiz__body { padding-inline: 1.1rem; }
  .quiz__nav { padding: .8rem 1.1rem calc(.9rem + env(safe-area-inset-bottom)); }

  .options--cols-3, .options--cols-4 { grid-template-columns: 1fr 1fr; }
  .option__card { padding: .9rem .6rem; font-size: .78rem; }
  .option input:checked + .option__card { padding: calc(.9rem - 1px) calc(.6rem - 1px); }
  .option--photo .option__card,
  .option--photo input:checked + .option__card { padding: 0; }
  .option__ico { width: 44px; height: 44px; }
  .option__ico svg { width: 23px; height: 23px; }
}

/* ---------- Mobile L ≤480px (425px) ---------- */
@media (max-width: 480px) {
  .container { width: min(1160px, 100% - 1.6rem); }

  .logo__img { height: 22px; }
  .header__link { font-size: .76rem; padding: .45rem .6rem; }

  .hero__badge { font-size: .72rem; margin-bottom: 1.1rem; }
  .hero__title { font-size: 1.3rem; }
  .hero__subtitle { font-size: .86rem; margin-top: .9rem; }
  .hero__benefits { margin-top: 1.3rem; padding-top: 1.2rem; }
  .hero__photo--small, .hero__stat { display: none; }
  .hero__photo--main { aspect-ratio: 4 / 3; }

  .btn { padding: .95rem 1.4rem; font-size: .78rem; }
  .btn--lg { padding: 1.05rem 1.6rem; font-size: .8rem; }

  .projects { padding-block: 2.5rem; }
  .projects__title { font-size: 1.2rem; }
  .projects__subtitle { font-size: .84rem; }
  .projects__cta { padding: 1.5rem 1.2rem; }
  .projects__cta p { font-size: .88rem; }
  .project__name { font-size: .92rem; }
  .project__stats li { flex: 1 1 44%; }

  .quiz__head { padding: 1.1rem 1rem .8rem; gap: .7rem; }
  .quiz__progress, .quiz__body { padding-inline: 1rem; }
  .quiz__head-text h2 { font-size: .95rem; }
  .quiz__head-text p { font-size: .78rem; }
  .quiz__close { width: 36px; height: 36px; }
  .quiz-step__title { font-size: .95rem; }
  .quiz__nav { padding-inline: 1rem; }

  .options { gap: .6rem; }
  .options--photos { grid-template-columns: 1fr; }
  .option--photo img { aspect-ratio: 16 / 9; }

  .messenger-options { display: grid; grid-template-columns: 1fr 1fr; }
  .messenger__chip { width: 100%; justify-content: center; padding: .6rem .5rem; font-size: .72rem; }

  .field__input { font-size: 16px; } /* запобігає авто-зуму iOS */

  .thanks__check { width: 68px; height: 68px; }
  .thanks__check svg { width: 32px; height: 32px; }
}

/* ---------- Mobile M ≤375px ---------- */
@media (max-width: 375px) {
  .hero__title { font-size: 1.18rem; }
  .hero__note { font-size: .74rem; }
  .benefit-ico { width: 32px; height: 32px; }
  .benefit-ico svg { width: 16px; height: 16px; }
  .hero__benefits li { font-size: .78rem; }

  .options--cols-3, .options--cols-4 { grid-template-columns: 1fr; }
  .option__card { flex-direction: row; justify-content: flex-start; text-align: left; gap: .8rem; padding: .75rem .85rem; }
  .option input:checked + .option__card { padding: calc(.75rem - 1px) calc(.85rem - 1px); }
  .option--photo .option__card { flex-direction: column; }
  .option__ico { width: 40px; height: 40px; flex: none; }
  .option__num { font-size: 1.1rem; min-width: 3.2rem; text-align: center; }

  .project__body { padding: 1rem .9rem 1.1rem; }
  .project__stats li { flex: 1 1 100%; display: flex; align-items: baseline; gap: .5rem; }
  .tag { font-size: .6rem; padding: .28rem .55rem; }

  .footer__copy { font-size: .7rem; }
}

/* ---------- Mobile S ≤320px ---------- */
@media (max-width: 320px) {
  .container { width: min(1160px, 100% - 1.2rem); }

  .logo__img { height: 19px; }
  .header__link { display: none; }

  .hero__title { font-size: 1.05rem; }
  .hero__subtitle { font-size: .8rem; }

  .btn { padding: .85rem 1rem; font-size: .72rem; letter-spacing: .5px; }
  .btn--lg { padding: .95rem 1.1rem; font-size: .74rem; }

  .quiz__head, .quiz__progress, .quiz__body, .quiz__nav { padding-inline: .8rem; }
  .quiz__head-text h2 { font-size: .88rem; }
  .quiz-step__title { font-size: .88rem; }
  .messenger-options { grid-template-columns: 1fr; }

  .projects__cta { padding: 1.2rem .9rem; }
  .project__contacts { font-size: .7rem; }

  .thanks__card { padding: 1.5rem 1.1rem; }
}