/* ============================================================
   Архітектурна майстерня Петриченка — стилі (Apple-style minimal)
   ============================================================ */

:root {
  --color-bg: #ffffff;
  --color-bg-soft: #f5f5f7;
  --color-text: #1d1d1f;
  --color-text-secondary: #6e6e73;
  --color-border: #d2d2d7;
  --color-accent: #8a6d4b;       /* теплий бронзовий — архітектурний акцент */
  --color-accent-dark: #6f5739;
  --color-dark-bg: #0b0b0c;

  --font-base: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text",
    "Inter", "Segoe UI", Helvetica, Arial, sans-serif;

  --container-width: 1180px;
  --section-padding: 120px;
  --radius: 18px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-base);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================================
   Типографіка
   ============================================================ */

h1, h2, h3, h4 {
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.08;
}

h1 {
  font-size: clamp(2.6rem, 6vw, 5.2rem);
  font-weight: 600;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.4rem);
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.6rem);
  font-weight: 600;
}

p {
  color: var(--color-text-secondary);
  font-size: 1.0625rem;
}

.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.lead {
  font-size: clamp(1.1rem, 1.6vw, 1.35rem);
  color: var(--color-text-secondary);
  max-width: 640px;
}

/* ============================================================
   Header / Навігація
   ============================================================ */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  transition: background 0.3s var(--ease);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

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

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav__link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text);
  opacity: 0.85;
  transition: opacity 0.2s var(--ease);
  white-space: nowrap;
}

.nav__link:hover,
.nav__link.is-active {
  opacity: 1;
  color: var(--color-accent);
}

.nav__cta {
  display: inline-flex;
  align-items: center;
  padding: 8px 18px;
  border-radius: 980px;
  background: var(--color-text);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
  transition: background 0.2s var(--ease);
}

.nav__cta:hover {
  background: var(--color-accent);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform 0.25s var(--ease), opacity 0.25s var(--ease);
}

/* ============================================================
   Hero
   ============================================================ */

.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  padding-top: 64px;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.45) 0%, rgba(0,0,0,0.55) 100%);
}

.hero--media .hero__content {
  color: #fff;
}

.hero--media .hero__content p {
  color: rgba(255,255,255,0.82);
}

.hero__content {
  max-width: 760px;
  padding: 100px 0;
}

.hero--plain {
  min-height: 60vh;
  background: var(--color-bg-soft);
}

.hero__actions {
  display: flex;
  gap: 16px;
  margin-top: 40px;
  flex-wrap: wrap;
}

/* ============================================================
   Кнопки
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: 980px;
  font-size: 1rem;
  font-weight: 600;
  transition: all 0.25s var(--ease);
  border: 1px solid transparent;
  cursor: pointer;
}

.btn--primary {
  background: var(--color-accent);
  color: #fff;
}

.btn--primary:hover {
  background: var(--color-accent-dark);
  transform: translateY(-1px);
}

.btn--ghost {
  background: rgba(255,255,255,0.12);
  color: #fff;
  border-color: rgba(255,255,255,0.5);
}

.btn--ghost:hover {
  background: rgba(255,255,255,0.22);
}

.btn--dark {
  background: var(--color-text);
  color: #fff;
}

.btn--dark:hover {
  background: var(--color-accent);
}

/* ============================================================
   Секції
   ============================================================ */

section {
  padding: var(--section-padding) 0;
}

.section-head {
  max-width: 720px;
  margin-bottom: 64px;
}

.section--soft {
  background: var(--color-bg-soft);
}

.section--dark {
  background: var(--color-dark-bg);
  color: #fff;
}

.section--dark p {
  color: rgba(255,255,255,0.65);
}

.section--dark h2 {
  color: #fff;
}

/* ============================================================
   Грід / картки
   ============================================================ */

.grid {
  display: grid;
  gap: 28px;
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 48px -16px rgba(0,0,0,0.18);
}

.card__media {
  aspect-ratio: 4 / 3;
  overflow: hidden;
}

.card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}

.card:hover .card__media img {
  transform: scale(1.06);
}

.card__body {
  padding: 24px;
}

.card__tag {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 8px;
  display: block;
}

.card--service {
  padding: 32px;
  background: #fff;
}

.card--service .icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--color-bg-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--color-accent);
}

.card--service h3 {
  margin-bottom: 12px;
}

.card--service p {
  font-size: 0.98rem;
}

/* ============================================================
   Список переваг / icon list
   ============================================================ */

.feature-list {
  display: grid;
  gap: 20px;
  margin-top: 32px;
}

.feature-list li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  font-size: 1.05rem;
  color: var(--color-text);
}

.feature-list .dot {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
}

/* ============================================================
   Спліт-блок (текст + зображення)
   ============================================================ */

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.split__media img {
  border-radius: var(--radius);
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}

.split--reverse .split__media {
  order: 2;
}

/* ============================================================
   Stats
   ============================================================ */

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}

.stat__number {
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: -0.02em;
}

.stat__label {
  margin-top: 8px;
  font-size: 0.95rem;
  color: var(--color-text-secondary);
}

/* ============================================================
   CTA
   ============================================================ */

.cta {
  text-align: center;
  max-width: 760px;
  margin: 0 auto;
}

.cta__actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 40px;
  flex-wrap: wrap;
}

/* ============================================================
   Form (Контакти)
   ============================================================ */

.form {
  display: grid;
  gap: 18px;
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.form input,
.form textarea {
  width: 100%;
  padding: 16px 18px;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  background: #fff;
  font-family: inherit;
  font-size: 1rem;
  color: var(--color-text);
  transition: border-color 0.2s var(--ease);
}

.form input:focus,
.form textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

.form label {
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
  display: block;
  color: var(--color-text-secondary);
}

/* ============================================================
   Контакти - інфо
   ============================================================ */

.contact-info {
  display: grid;
  gap: 28px;
}

.contact-info__item h3 {
  margin-bottom: 6px;
  font-size: 1.05rem;
}

.contact-info__item p,
.contact-info__item a {
  font-size: 1.05rem;
}

.contact-info__item a:hover {
  color: var(--color-accent);
}

.map {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.map iframe {
  width: 100%;
  height: 360px;
  border: 0;
  display: block;
}

/* ============================================================
   Breadcrumbs / page hero text
   ============================================================ */

.page-hero {
  padding-top: 160px;
  padding-bottom: 64px;
}

.page-hero .eyebrow {
  margin-bottom: 20px;
}

/* ============================================================
   Footer
   ============================================================ */

.footer {
  background: var(--color-dark-bg);
  color: rgba(255,255,255,0.6);
  padding: 80px 0 32px;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer__brand {
  color: #fff;
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 16px;
}

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

.footer h4 {
  color: #fff;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 18px;
  font-weight: 600;
}

.footer ul {
  list-style: none;
  display: grid;
  gap: 12px;
}

.footer a {
  font-size: 0.95rem;
  transition: color 0.2s var(--ease);
}

.footer a:hover {
  color: #fff;
}

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  font-size: 0.85rem;
  flex-wrap: wrap;
  gap: 12px;
}

/* ============================================================
   Fade-in анімація
   ============================================================ */

.fade-up {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

.fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   Responsive
   ============================================================ */

@media (max-width: 1024px) {
  :root {
    --section-padding: 88px;
  }

  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 40px; }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 40px 24px; }
}

@media (max-width: 860px) {
  .nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.96);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: flex-start;
    padding: 24px;
    gap: 18px;
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-110%);
    opacity: 0;
    transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
  }

  .nav.is-open {
    transform: translateY(0) !important;
    opacity: 1 !important;
    visibility: visible !important;
    z-index: 1001;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-toggle.is-open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .nav-toggle.is-open span:nth-child(2) {
    opacity: 0;
  }
  .nav-toggle.is-open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .split, .split--reverse .split__media {
    grid-template-columns: 1fr;
    order: 0;
  }
  .split {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media (max-width: 640px) {
  .grid--2, .grid--3, .grid--4 {
    grid-template-columns: 1fr;
  }
  .stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .form__row {
    grid-template-columns: 1fr;
  }
  .footer__grid {
    grid-template-columns: 1fr;
  }
  .hero__content {
    padding: 64px 0;
  }
  section {
    padding: 64px 0;
  }
}