/* ===== Variables ===== */
:root {
  --bg: #0c0c0e;
  --bg-elevated: #141418;
  --surface: #1a1a1f;
  --text: #f0f0f2;
  --text-muted: #8a8a92;
  --accent: #f59e0b;
  --accent-hover: #fbbf24;
  --accent-dim: rgba(245, 158, 11, 0.15);
  --border: rgba(255, 255, 255, 0.06);
  --radius: 12px;
  --radius-lg: 20px;
  --font-sans: 'Manrope', -apple-system, sans-serif;
  --font-display: 'Unbounded', sans-serif;
  --transition: 0.25s ease;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

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

.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 20px 0;
  background: rgba(12, 12, 14, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: padding var(--transition), background var(--transition);
}

.header.scrolled {
  padding: 12px 0;
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text);
}

.logo__icon {
  font-size: 1.5rem;
  filter: grayscale(0);
}

.nav {
  display: flex;
  gap: 32px;
}

.nav__link {
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition);
}

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

.header__phone {
  font-weight: 600;
  color: var(--accent);
  white-space: nowrap;
  transition: color var(--transition);
}

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

.burger {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.burger span {
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.burger.active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.burger.active span:nth-child(2) {
  opacity: 0;
}

.burger.active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.nav-mobile {
  display: none;
  position: fixed;
  top: 70px;
  left: 0;
  right: 0;
  padding: 24px;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
  flex-direction: column;
  gap: 16px;
  z-index: 99;
}

.nav-mobile.open {
  display: flex;
}

.nav-mobile__link {
  font-weight: 500;
  color: var(--text);
  padding: 8px 0;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
}

.hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero__gradient {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, var(--accent-dim), transparent 60%),
    radial-gradient(ellipse 60% 40% at 100% 50%, rgba(245, 158, 11, 0.08), transparent 50%);
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.4;
  mask-image: linear-gradient(to bottom, transparent, black 40%, black 70%, transparent);
}

.hero__content {
  position: relative;
  z-index: 1;
}

.hero__label {
  font-size: 0.875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 16px;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.2s forwards;
}

.hero__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.5rem, 6vw, 4rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  max-width: 14ch;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.35s forwards;
}

.hero__subtitle {
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 480px;
  margin-bottom: 36px;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.5s forwards;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.65s forwards;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 1rem;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn--primary {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}

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

.btn--outline {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}

.btn--outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.hero__scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.hero__scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  border-radius: 2px;
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.5; transform: scaleY(0.8); }
  50% { opacity: 1; transform: scaleY(1); }
}

/* ===== Sections common ===== */
.section-label {
  font-size: 0.875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 4vw, 2.75rem);
  letter-spacing: -0.02em;
  margin-bottom: 48px;
}

/* ===== Services ===== */
.services {
  padding: 100px 0;
  background: var(--bg-elevated);
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.card:hover {
  border-color: var(--accent-dim);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px -20px rgba(0, 0, 0, 0.5);
}

.card__icon {
  font-size: 2.5rem;
  margin-bottom: 20px;
  line-height: 1;
}

.card__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.card__text {
  color: var(--text-muted);
  font-size: 0.9375rem;
  line-height: 1.6;
}

/* ===== About ===== */
.about {
  padding: 100px 0;
  background: var(--bg);
}

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

.about__list {
  margin: 24px 0 32px;
}

.about__list li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 14px;
  color: var(--text-muted);
}

.about__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
}

.about__visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.about__box {
  width: 200px;
  height: 200px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--accent-dim);
  border: 2px solid var(--accent);
  border-radius: 50%;
}

.about__number {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 3rem;
  color: var(--accent);
  line-height: 1;
}

.about__caption {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-top: 8px;
}

/* ===== Gallery ===== */
.gallery {
  padding: 100px 0;
  background: var(--bg);
}

.gallery__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.gallery__item {
  display: block;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  aspect-ratio: 4 / 3;
  transition: border-color var(--transition), transform var(--transition);
}

.gallery__item:hover {
  border-color: var(--accent-dim);
  transform: scale(1.02);
}

.gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

@media (max-width: 768px) {
  .gallery__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
}

@media (max-width: 480px) {
  .gallery__grid {
    grid-template-columns: 1fr;
  }
}

/* ===== Contacts ===== */
.contacts {
  padding: 100px 0;
  background: var(--bg-elevated);
}

.contacts__row {
  display: flex;
  gap: 48px;
  align-items: flex-start;
  flex-wrap: wrap;
}

.contacts__info {
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-width: 280px;
}

.contacts__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 40px;
}

.contacts__item {
  padding: 36px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition);
}

.contacts__item:hover {
  border-color: var(--accent-dim);
}

.contacts__label {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.contacts__value {
  font-weight: 600;
  font-size: 1.125rem;
  color: var(--text);
}

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

.contacts__form-wrap {
  flex: 1;
  min-width: 280px;
  max-width: 480px;
}

.contacts__form-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.5rem;
  margin-bottom: 24px;
}

/* ===== Feedback form ===== */
.feedback-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.feedback-form__label {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.feedback-form__name {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
}

.feedback-form__input,
.feedback-form__select {
  width: 100%;
  padding: 14px 16px;
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color var(--transition);
}

.feedback-form__input::placeholder {
  color: var(--text-muted);
  opacity: 0.7;
}

.feedback-form__input:focus,
.feedback-form__select:focus {
  outline: none;
  border-color: var(--accent);
}

.feedback-form__select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238a8a92' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.feedback-form__submit {
  margin-top: 8px;
  width: 100%;
}

/* ===== Modal ===== */
.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
}

.modal.is-open {
  opacity: 1;
  visibility: visible;
}

.modal__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  cursor: pointer;
}

.modal__box {
  position: relative;
  width: 100%;
  max-width: 440px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 40px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.4);
  transform: scale(0.95);
  transition: transform var(--transition);
}

.modal.is-open .modal__box {
  transform: scale(1);
}

.modal__close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  color: var(--text-muted);
  transition: color var(--transition);
}

.modal__close::before,
.modal__close::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
}

.modal__close::before {
  transform: translate(-50%, -50%) rotate(45deg);
}

.modal__close::after {
  transform: translate(-50%, -50%) rotate(-45deg);
}

.modal__close:hover {
  color: var(--text);
}

.modal__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.5rem;
  margin-bottom: 24px;
  padding-right: 40px;
}

.modal__form .feedback-form__submit {
  margin-top: 0;
}

/* ===== Thanks popup ===== */
.thanks-popup .modal__box {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.4);
}

.thanks-popup .modal__close {
  top: 16px;
  right: 16px;
  width: 44px;
  height: 44px;
  color: var(--text-muted);
  z-index: 1;
}

.thanks-popup .modal__close:hover {
  color: var(--accent);
}

.thanks-popup__box {
  text-align: center;
  max-width: 420px;
  padding-right: 56px;
  padding-top: 48px;
}

.thanks-popup__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 700;
  color: var(--bg);
  background: var(--accent);
  border-radius: 50%;
  line-height: 1;
}

.thanks-popup__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.75rem;
  margin-bottom: 4px;
  color: var(--text);
}

.thanks-popup__lead {
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.thanks-popup__data {
  text-align: left;
  padding: 20px;
  margin-bottom: 20px;
  background: var(--bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.thanks-popup__row {
  margin: 0 0 10px;
  font-size: 0.9375rem;
  color: var(--text-muted);
}

.thanks-popup__row:last-child {
  margin-bottom: 0;
}

.thanks-popup__label {
  display: inline-block;
  min-width: 72px;
}

.thanks-popup__row strong {
  color: var(--text);
  font-weight: 600;
}

.thanks-popup__message {
  font-size: 0.9375rem;
  color: var(--text-muted);
  margin-bottom: 24px;
  line-height: 1.5;
}

.thanks-popup__btn {
  width: 100%;
}

/* ===== Lightbox (gallery) ===== */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
}

.lightbox.is-open {
  opacity: 1;
  visibility: visible;
}

.lightbox__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.9);
  cursor: pointer;
}

.lightbox__close {
  position: absolute;
  top: 24px;
  right: 24px;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  padding: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--text);
  cursor: pointer;
  transition: color var(--transition), background var(--transition), border-color var(--transition);
}

.lightbox__close:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-dim);
}

.lightbox__arrow {
  position: absolute;
  top: 50%;
  z-index: 2;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  padding: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--text);
  cursor: pointer;
  transition: color var(--transition), background var(--transition), border-color var(--transition);
}

.lightbox__arrow:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-dim);
}

.lightbox__arrow--prev {
  left: 24px;
}

.lightbox__arrow--next {
  right: 24px;
}

.lightbox__content {
  position: relative;
  z-index: 1;
  max-width: 90vw;
  max-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox__img {
  max-width: 100%;
  max-height: 85vh;
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: var(--radius);
}

@media (max-width: 768px) {
  .lightbox__arrow {
    width: 44px;
    height: 44px;
  }

  .lightbox__arrow--prev {
    left: 12px;
  }

  .lightbox__arrow--next {
    right: 12px;
  }

  .lightbox__close {
    top: 16px;
    right: 16px;
    width: 44px;
    height: 44px;
  }
}

/* ===== Footer ===== */
.footer {
  padding: 24px 0;
  border-top: 1px solid var(--border);
  background: var(--bg);
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer__social {
  display: flex;
  align-items: center;
  gap: 16px;
}

.footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: color var(--transition), transform 0.2s ease;
}

.footer__social-link:hover {
  color: var(--accent);
  transform: scale(1.1);
}

.footer__icon {
  width: 24px;
  height: 24px;
}

.footer__copy {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.footer__phone {
  font-weight: 600;
  color: var(--accent);
}

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

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .nav,
  .header__phone:not(.footer__phone) {
    display: none;
  }

  .burger {
    display: flex;
  }

  .about__inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .about__list li {
    text-align: left;
  }

  .about__visual {
    order: -1;
  }

  .hero__title {
    max-width: none;
  }

  .contacts__row {
    flex-direction: column;
  }

  .contacts__form-wrap {
    max-width: none;
  }
}

@media (max-width: 480px) {
  .hero__actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .footer__inner {
    flex-direction: column;
    text-align: center;
  }
}