:root {
  --c-bg-body: #f9fafb;
  --c-bg-surface: #ffffff;
  --c-text-main: #111827;
  --c-text-muted: #6b7280;
  --c-accent-primary: #2563eb;
  --c-accent-hover: #1d4ed8;
  --c-accent-dark: #0f172a;
  --c-border: #e5e7eb;
  --c-success: #10b981;
  --c-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --c-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1),
    0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --c-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1),
    0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --c-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1),
    0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --f-main: "Inter", system-ui, -apple-system, sans-serif;
  --f-heading: "Space Grotesk", sans-serif;
  --s-container: 1240px;
  --s-gutter: 1.5rem;
  --s-radius: 16px;
  --s-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--f-main);
  color: var(--c-text-main);
  background-color: var(--c-bg-body);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection {
  background-color: var(--c-accent-primary);
  color: #ffffff;
}

h1,
h2,
h3,
h4 {
  font-family: var(--f-heading);
  color: var(--c-text-main);
  line-height: 1.1;
  margin-bottom: 1rem;
  letter-spacing: -0.025em;
}

h1 {
  font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem);
  font-weight: 700;
}
h2 {
  font-size: clamp(2rem, 4vw + 0.5rem, 3rem);
  margin-bottom: 1.5rem;
}
h3 {
  font-size: 1.5rem;
  font-weight: 600;
}

p {
  margin-bottom: 1.5rem;
  max-width: 65ch;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--s-transition);
}
ul {
  list-style: none;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}

:focus-visible {
  outline: 2px solid var(--c-accent-primary);
  outline-offset: 4px;
  border-radius: 4px;
}

.h_top_nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 1000;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  padding: 1rem 0;
  transition: all 0.3s ease;
}

.h_container {
  max-width: var(--s-container);
  margin: 0 auto;
  padding: 0 var(--s-gutter);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.h_logo {
  font-family: var(--f-heading);
  font-size: 1.5rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--c-text-main);
}
.h_logo i {
  color: var(--c-accent-primary);
}

.h_menu_desktop {
  display: none;
}

.h_burger_wrap {
  cursor: pointer;
  width: 32px;
  height: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  z-index: 1001;
}

.h_bar {
  width: 100%;
  height: 2px;
  background-color: var(--c-text-main);
  border-radius: 2px;
  transition: var(--s-transition);
}

.h_mobile_menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  padding: 6rem 2rem;
  transform: translateY(-100%);
  transition: transform 0.5s cubic-bezier(0.77, 0, 0.175, 1);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.h_mobile_menu.active {
  transform: translateY(0);
}
.h_mobile_menu ul li {
  margin-bottom: 2rem;
  text-align: center;
}
.h_mobile_menu ul li a {
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--c-text-main);
}

.s_hero_section {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 8rem var(--s-gutter) 4rem;
  background: radial-gradient(
      circle at 15% 25%,
      rgba(37, 99, 235, 0.04) 0%,
      transparent 40%
    ),
    radial-gradient(
      circle at 85% 75%,
      rgba(16, 185, 129, 0.04) 0%,
      transparent 40%
    );
  overflow: hidden;
}

.s_hero_content {
  max-width: 650px;
  margin: 0 auto;
  text-align: center;
  z-index: 2;
}

.s_hero_content p {
  font-size: 1.25rem;
  color: var(--c-text-muted);
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

@keyframes float {
  0% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-12px);
  }
  100% {
    transform: translateY(0px);
  }
}

.s_hero_image_wrapper {
  margin-top: 4rem;
  border-radius: var(--s-radius);
  overflow: hidden;
  box-shadow: var(--c-shadow-xl);
  animation: float 6s ease-in-out infinite;
}

.img_hero_main {
  width: 100%;
  height: 400px;
  object-fit: cover;
}

.btn_primary {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  background-color: var(--c-accent-primary);
  color: #fff;
  padding: 1.1rem 2.8rem;
  border-radius: 100px;
  font-weight: 600;
  font-size: 1.05rem;
  transition: var(--s-transition);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

.btn_primary:hover {
  background-color: var(--c-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.35);
}

.s_services_grid {
  padding: 8rem 0;
}
.s_section_header {
  text-align: center;
  margin-bottom: 4rem;
  max-width: 700px;
  margin-inline: auto;
}

.g_grid_wrapper {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.c_card_service {
  background: var(--c-bg-surface);
  padding: 2.5rem;
  border-radius: var(--s-radius);
  box-shadow: var(--c-shadow-sm);
  transition: var(--s-transition);
  border: 1px solid rgba(0, 0, 0, 0.03);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.c_card_service:hover {
  transform: translateY(-5px);
  box-shadow: var(--c-shadow-lg);
  border-color: rgba(37, 99, 235, 0.15);
}

.c_card_service::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 0%;
  background: var(--c-accent-primary);
  transition: height 0.3s ease;
}
.c_card_service:hover::before {
  height: 100%;
}

.c_card_service summary {
  list-style: none;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  position: relative;
}
.c_card_service summary::-webkit-details-marker {
  display: none;
}

.c_icon {
  font-size: 2rem;
  color: var(--c-accent-primary);
  margin-bottom: 1.5rem;
  background: rgba(37, 99, 235, 0.08);
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  transition: var(--s-transition);
}

.c_card_service:hover .c_icon {
  background: var(--c-accent-primary);
  color: #fff;
  transform: rotate(-6deg);
}

.c_toggle_icon {
  position: absolute;
  top: 0;
  right: 0;
  color: var(--c-text-muted);
  transition: transform 0.3s ease;
  font-size: 1.2rem;
}

.c_card_service[open] .c_toggle_icon {
  transform: rotate(45deg);
  color: var(--c-accent-primary);
}

.c_hidden_content {
  margin-top: 1.5rem;
  color: var(--c-text-muted);
  animation: slideDown 0.4s cubic-bezier(0.25, 0.8, 0.25, 1) forwards;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.s_philosophy {
  padding: 8rem 0;
  background-color: var(--c-bg-surface);
}
.flex_row_reverse {
  display: flex;
  flex-direction: column;
  gap: 4rem;
}

.u_list_features li {
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  font-weight: 500;
  font-size: 1.1rem;
}
.u_list_features i {
  color: var(--c-success);
  background: rgba(16, 185, 129, 0.1);
  padding: 0.5rem;
  border-radius: 50%;
  font-size: 0.9rem;
}
.img_rounded {
  border-radius: var(--s-radius);
  width: 100%;
  box-shadow: var(--c-shadow-lg);
}

.s_portfolio_showcase {
  padding: 8rem 0;
}
.s_portfolio_showcase h2 {
  text-align: center;
  margin-bottom: 3rem;
}

.g_portfolio_grid {
  display: flex;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2.5rem;
}

.p_item {
  position: relative;
  border-radius: var(--s-radius);
  overflow: hidden;
  aspect-ratio: 4/3;
  cursor: pointer;
  box-shadow: var(--c-shadow-md);
}

.p_item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.p_item:hover img {
  transform: scale(1.08);
}

.p_overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.9) 0%,
    rgba(0, 0, 0, 0.4) 50%,
    rgba(0, 0, 0, 0) 100%
  );
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 2.5rem;
  color: #fff;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.4s ease;
}

.p_item:hover .p_overlay {
  opacity: 1;
  transform: translateY(0);
}
.p_overlay h4 {
  color: #fff;
  margin-bottom: 0.5rem;
  font-size: 1.4rem;
}
.p_overlay p {
  margin-bottom: 0;
  font-size: 1rem;
  opacity: 0.9;
}

.s_contact_form_area {
  padding: 8rem 0;
  background-color: var(--c-bg-surface);
}
.s_container_narrow {
  max-width: 600px;
  margin: 0 auto;
  padding: 0 var(--s-gutter);
}

.f_main_contact {
  background: #fff;
  padding: 3.5rem;
  border-radius: 24px;
  box-shadow: var(--c-shadow-xl);
  border: 1px solid var(--c-border);
  margin-top: 3rem;
}

.f_group {
  margin-bottom: 1.5rem;
}
.f_group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--c-text-main);
}

.f_group input,
.f_group textarea {
  width: 100%;
  padding: 1rem 1.2rem;
  border: 1px solid transparent;
  border-radius: 10px;
  font-family: var(--f-main);
  font-size: 1rem;
  transition: var(--s-transition);
  background: #f3f4f6;
  color: var(--c-text-main);
}

.f_group input:focus,
.f_group textarea:focus {
  outline: none;
  border-color: var(--c-accent-primary);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

.btn_submit {
  width: 100%;
  background-color: var(--c-accent-dark);
  color: #fff;
  border: none;
  padding: 1.2rem;
  font-size: 1.1rem;
  font-weight: 600;
  border-radius: 10px;
  cursor: pointer;
  transition: var(--s-transition);
  margin-top: 1rem;
}
.btn_submit:hover {
  background-color: var(--c-accent-primary);
  transform: translateY(-2px);
  box-shadow: var(--c-shadow-lg);
}

.f_site_footer {
  background-color: #0f172a;
  color: #94a3b8;
  padding: 6rem 0 3rem;
  border-top: 1px solid #1e293b;
}

.f_top_row {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  margin-bottom: 4rem;
  border-bottom: 1px solid #1e293b;
  padding-bottom: 3rem;
}
.f_col_brand h3 {
  color: #fff;
  margin-bottom: 0.75rem;
  font-size: 1.8rem;
}
.f_col_brand p {
  color: #64748b;
  max-width: 300px;
}

.f_col_social {
  display: flex;
  gap: 1.5rem;
}
.f_col_social a {
  font-size: 1.5rem;
  color: #64748b;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.03);
}
.f_col_social a:hover {
  color: #fff;
  background: var(--c-accent-primary);
  transform: translateY(-3px);
}

.f_bottom_row {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  text-align: center;
  font-size: 0.9rem;
}
.f_legal_links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 2rem;
}
.f_legal_links button {
  background: none;
  border: none;
  color: #64748b;
  cursor: pointer;
  transition: color 0.3s;
  font-size: 0.9rem;
}
.f_legal_links button:hover {
  color: #fff;
}

@media (min-width: 1024px) {
  .h_menu_desktop {
    display: block;
  }
  .h_burger_wrap,
  .h_mobile_menu {
    display: none;
  }

  .h_menu_desktop ul {
    display: flex;
    gap: 3rem;
  }
  .h_menu_desktop a {
    font-weight: 500;
    position: relative;
    font-size: 1.05rem;
    color: var(--c-text-muted);
  }
  .h_menu_desktop a:hover {
    color: var(--c-text-main);
  }

  .h_menu_desktop a::after {
    content: "";
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--c-accent-primary);
    transition: width 0.3s ease;
  }
  .h_menu_desktop a:hover::after {
    width: 100%;
  }

  .s_hero_section {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    text-align: left;
    padding-top: 6rem;
  }
  .s_hero_content {
    margin: 0;
    max-width: 48%;
    text-align: left;
  }
  .s_hero_image_wrapper {
    margin-top: 0;
    width: 48%;
  }
  .img_hero_main {
    height: 600px;
  }

  .flex_row_reverse {
    flex-direction: row-reverse;
    align-items: center;
    gap: 6rem;
  }
  .s_text_block,
  .s_image_block {
    width: 50%;
  }

  .f_top_row,
  .f_bottom_row {
    justify-content: space-between;
    align-items: center;
    text-align: left;
  }
}

/* --- Modals (Модальные окна) --- */
.m_modal_backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(15, 23, 42, 0.6); /* Темный полупрозрачный фон */
  backdrop-filter: blur(8px); /* Эффект размытия фона */
  -webkit-backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 1.5rem;
  opacity: 1;
  visibility: visible;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

/* Класс для скрытия (добавляется через JS) */
.m_modal_backdrop.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.m_modal_content {
  background: #fff;
  padding: 2.5rem;
  border-radius: 24px; /* Сильное скругление */
  max-width: 600px;
  width: 100%;
  position: relative;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25); /* Глубокая тень */
  transform: scale(1);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1); /* Эффект пружины при появлении */
}

.m_modal_backdrop.hidden .m_modal_content {
  transform: scale(0.95);
}

.m_close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  font-size: 2rem;
  cursor: pointer;
  line-height: 1;
  color: #94a3b8;
  transition: color 0.2s ease, transform 0.2s ease;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.m_close:hover {
  color: #ef4444; /* Красный при наведении */
  background-color: #fef2f2;
  transform: rotate(90deg);
}

.m_modal_content h3 {
  margin-top: 0;
  font-size: 1.75rem;
  color: #111827;
  margin-bottom: 1rem;
  padding-right: 2rem; /* Чтобы текст не наезжал на крестик */
}

.m_modal_content p {
  color: #4b5563;
  line-height: 1.7;
  font-size: 1.05rem;
  margin-bottom: 0;
}

/* --- Cookie Banner (Баннер куки) --- */
.cookie-banner {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(0);
  width: 90%;
  max-width: 1200px;
  background-color: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  padding: 1.5rem 2rem;
  z-index: 9999;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1),
    0 8px 10px -6px rgba(0, 0, 0, 0.1);
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.cookie-banner.hidden {
  transform: translateX(-50%) translateY(150%); /* Уезжает вниз */
  opacity: 0;
  pointer-events: none;
}

.cb_content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: center;
  text-align: center;
}

.cb_content p {
  margin: 0;
  color: #334155;
  font-size: 1rem;
  max-width: 100%;
}

.cb_buttons {
  display: flex;
  gap: 1rem;
  width: 100%;
}

.cb_buttons button {
  flex: 1;
  padding: 0.75rem 1.5rem;
  border-radius: 10px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  font-size: 0.95rem;
  transition: all 0.2s ease;
}

.btn_accept {
  background-color: #2563eb; /* Основной синий */
  color: #fff;
  box-shadow: 0 4px 6px -1px rgba(37, 99, 235, 0.2);
}

.btn_accept:hover {
  background-color: #1d4ed8;
  transform: translateY(-1px);
  box-shadow: 0 6px 8px -1px rgba(37, 99, 235, 0.3);
}

.btn_decline {
  background-color: #f1f5f9; /* Светло-серый */
  color: #475569;
}

.btn_decline:hover {
  background-color: #e2e8f0;
  color: #1e293b;
}

/* Адаптив для баннера и модалок */
@media (min-width: 768px) {
  .cb_content {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }

  .cb_content p {
    max-width: 60%;
  }

  .cb_buttons {
    width: auto;
  }
}