/* ==================== GOOGLE FONTS ==================== */
/* font-family: 'Inter', sans-serif; */
/* font-family: 'Space Grotesk', sans-serif; */

/* ==================== CSS VARIABLES ==================== */
:root {
  /* Colors */
  --color-background: #12121c;
  --color-text: #f0f0f0;
  --color-accent: #6d5bff;
  --color-secondary: #8c8c9e;
  --color-surface: #1e1e2f;
  --color-border: #2a2a45;

  /* Typography */
  --font-family-headings: 'Space Grotesk', sans-serif;
  --font-family-body: 'Inter', sans-serif;
  --font-size-base: 16px;
  --line-height-base: 1.6;

  /* Other */
  --border-radius: 8px;
  --transition-duration: 0.3s;
  --container-width: 1140px;
  --container-padding: 1rem;
}

/* ==================== BASE STYLES ==================== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

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

ul {
  list-style: none;
}

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

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

h1, h2, h3 {
  font-family: var(--font-family-headings);
  font-weight: 700;
  line-height: 1.2;
}

.container {
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

/* ==================== HEADER ==================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background-color: rgba(18, 18, 28, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  transition: background-color var(--transition-duration) ease;
}

.header__container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 4.5rem;
}

.header__logo {
  font-family: var(--font-family-headings);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
}

.header__nav {
  display: block;
}

.header__list {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.header__link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-secondary);
  transition: color var(--transition-duration) ease;
  position: relative;
  padding: 0.5rem 0;
}

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

.header__link--button {
  color: var(--color-text);
  background-color: var(--color-accent);
  padding: 0.6rem 1.2rem;
  border-radius: var(--border-radius);
  transition: transform var(--transition-duration) ease, box-shadow var(--transition-duration) ease;
}

.header__link--button:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(109, 91, 255, 0.3);
}

.header__toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text);
  cursor: pointer;
}

/* Header media query for mobile */
@media screen and (max-width: 768px) {
  .header__nav {
    display: none; /* Hide nav by default on mobile */
  }
  .header__toggle {
    display: block; /* Show hamburger icon */
  }
}

/* ==================== FOOTER ==================== */
.footer {
  background-color: var(--color-surface);
  padding-top: 4rem;
  border-top: 1px solid var(--color-border);
}

.footer__container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2.5rem;
  padding-bottom: 3rem;
}

.footer__logo {
  font-family: var(--font-family-headings);
  font-size: 1.75rem;
  font-weight: 700;
  display: inline-block;
  margin-bottom: 1rem;
}

.footer__description {
  color: var(--color-secondary);
  max-width: 250px;
}

.footer__title {
  font-size: 1.1rem;
  margin-bottom: 1.25rem;
  color: var(--color-text);
}

.footer__list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer__link {
  color: var(--color-secondary);
  transition: color var(--transition-duration) ease, padding-left var(--transition-duration) ease;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.footer__link:hover {
  color: var(--color-accent);
  padding-left: 5px;
}

.footer__address {
  font-style: normal;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer__address p {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer__icon {
  width: 18px;
  height: 18px;
  color: var(--color-secondary);
}

.footer__bottom {
  border-top: 1px solid var(--color-border);
  padding: 1.5rem var(--container-padding);
  text-align: center;
  font-size: 0.9rem;
  color: var(--color-secondary);
}

/* ==================== HERO ==================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 4.5rem; /* Header height */
  overflow: hidden;
}

.hero__gradient {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80vw;
  height: 80vh;
  background: radial-gradient(circle, rgba(109, 91, 255, 0.1), rgba(109, 91, 255, 0) 60%);
  z-index: -1;
  pointer-events: none;
}

.hero__container {
  text-align: center;
  z-index: 1;
}

.hero__title {
  font-size: clamp(2.5rem, 6vw, 4.5rem); /* Адаптивный размер шрифта */
  font-weight: 700;
  max-width: 14ch;
  margin: 0 auto 1.5rem;
  letter-spacing: -0.02em;
}

.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--color-secondary);
  max-width: 650px;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
}

.hero__cta {
  display: inline-block;
  font-family: var(--font-family-headings);
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--color-text);
  background-color: var(--color-accent);
  padding: 1rem 2.5rem;
  border-radius: var(--border-radius);
  transition: transform var(--transition-duration) ease, box-shadow var(--transition-duration) ease;
}

.hero__cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(109, 91, 255, 0.35);
}

/* ==================== CONTACT ==================== */
.contact {
  padding: 6rem 0;
}

.contact__container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

@media screen and (min-width: 992px) {
  .contact__container {
    grid-template-columns: 0.8fr 1fr;
    gap: 5rem;
    align-items: center;
  }
}

.contact__title {
  font-size: clamp(2rem, 5vw, 3rem);
  margin-bottom: 1rem;
}

.contact__description {
  color: var(--color-secondary);
  font-size: 1.1rem;
  max-width: 500px;
}

.contact__form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact__form-group {
  position: relative;
}

.contact__form-input {
  width: 100%;
  padding: 1rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  color: var(--color-text);
  font-size: 1rem;
  font-family: var(--font-family-body);
  transition: border-color var(--transition-duration) ease;
}

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

.contact__form-input::placeholder {
  color: var(--color-secondary);
  opacity: 0.8;
}

.contact__form-label {
  position: absolute;
  top: 1rem;
  left: 1rem;
  color: var(--color-secondary);
  pointer-events: none;
  transition: top 0.2s, font-size 0.2s, color 0.2s;
}

.contact__form-input:focus ~ .contact__form-label,
.contact__form-input:not(:placeholder-shown) ~ .contact__form-label {
  top: -0.75rem;
  left: 0.75rem;
  font-size: 0.8rem;
  color: var(--color-accent);
  background-color: var(--color-surface);
  padding: 0 0.25rem;
}

.contact__form-group--captcha {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.contact__captcha-question {
  color: var(--color-secondary);
  white-space: nowrap;
}

.contact__form-group--checkbox {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.contact__form-checkbox {
  accent-color: var(--color-accent);
  width: 18px;
  height: 18px;
}

.contact__form-checkbox-label {
  font-size: 0.9rem;
  color: var(--color-secondary);
}

.contact__form-checkbox-label a {
  color: var(--color-text);
  text-decoration: underline;
  text-decoration-color: var(--color-accent);
}

.contact__form-button {
  width: 100%;
  padding: 1rem;
  font-family: var(--font-family-headings);
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--color-text);
  background-color: var(--color-accent);
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: transform var(--transition-duration) ease, box-shadow var(--transition-duration) ease;
}

.contact__form-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(109, 91, 255, 0.35);
}

.contact__form-button:disabled {
  background-color: var(--color-secondary);
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.contact__form-message {
  margin-top: 1rem;
  padding: 1rem;
  border-radius: var(--border-radius);
  text-align: center;
  font-size: 0.95rem;
  display: none;
}

.contact__form-message--success {
  display: block;
  background-color: rgba(30, 215, 96, 0.1);
  border: 1px solid rgba(30, 215, 96, 0.5);
  color: #1ed760;
}

.contact__form-message--error {
  display: block;
  background-color: rgba(255, 0, 0, 0.1);
  border: 1px solid rgba(255, 0, 0, 0.5);
  color: #ff4d4d;
}

/* ==================== PRACTICES ==================== */
.practices {
  padding: 6rem 0;
  background-color: var(--color-surface);
}

.practices__header {
  text-align: center;
  margin-bottom: 4rem;
}

.practices__tagline {
  display: inline-block;
  font-family: var(--font-family-headings);
  color: var(--color-accent);
  background-color: rgba(109, 91, 255, 0.1);
  padding: 0.25rem 0.75rem;
  border-radius: var(--border-radius);
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.practices__title {
  font-size: clamp(2rem, 5vw, 2.75rem);
  margin-bottom: 1rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.practices__subtitle {
  font-size: 1.1rem;
  color: var(--color-secondary);
  max-width: 550px;
  margin-left: auto;
  margin-right: auto;
}

.practices__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.practices__card {
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 2rem;
  transition: transform var(--transition-duration) ease, border-color var(--transition-duration) ease;
}

.practices__card:hover {
  transform: translateY(-8px);
  border-color: var(--color-accent);
}

.practices__card-icon-wrapper {
  display: inline-flex;
  padding: 1rem;
  background-color: var(--color-surface);
  border-radius: var(--border-radius);
  margin-bottom: 1.5rem;
}

.practices__card-icon {
  width: 28px;
  height: 28px;
  color: var(--color-accent);
}

.practices__card-title {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  color: var(--color-text);
}

.practices__card-description {
  color: var(--color-secondary);
  line-height: 1.7;
}

/* ==================== TOOLS ==================== */
.tools {
  padding: 6rem 0;
  border-top: 1px solid var(--color-border);
}

.tools__header {
  text-align: center;
  margin-bottom: 4rem;
}

.tools__tagline {
  display: inline-block;
  font-family: var(--font-family-headings);
  color: var(--color-accent);
  background-color: rgba(109, 91, 255, 0.1);
  padding: 0.25rem 0.75rem;
  border-radius: var(--border-radius);
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.tools__title {
  font-size: clamp(2rem, 5vw, 2.75rem);
  margin-bottom: 1rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.tools__subtitle {
  font-size: 1.1rem;
  color: var(--color-secondary);
  max-width: 550px;
  margin-left: auto;
  margin-right: auto;
}

.tools__accordion {
  max-width: 800px;
  margin: 0 auto;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  overflow: hidden;
}

.tools__accordion-item {
  border-bottom: 1px solid var(--color-border);
}

.tools__accordion-item:last-child {
  border-bottom: none;
}

.tools__accordion-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 1.5rem;
  background-color: var(--color-surface);
  border: none;
  cursor: pointer;
  text-align: left;
  color: var(--color-text);
}

.tools__accordion-header:hover {
  background-color: rgba(109, 91, 255, 0.05);
}

.tools__accordion-title {
  font-family: var(--font-family-headings);
  font-size: 1.25rem;
  font-weight: 500;
}

.tools__accordion-icon {
  transition: transform var(--transition-duration) ease;
  color: var(--color-accent);
}

.tools__accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease-out, padding 0.4s ease-out;
  background-color: var(--color-background);
}

.tools__accordion-description {
  color: var(--color-secondary);
  line-height: 1.7;
  padding: 0 1.5rem;
}

.tools__accordion-img {
    margin: 1rem 1.5rem 1.5rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    max-width: calc(100% - 3rem);
}

/* Active state for accordion */
.tools__accordion-item--active .tools__accordion-icon {
  transform: rotate(180deg);
}

.tools__accordion-item--active .tools__accordion-content {
  /* max-height is set by JS */
  padding-top: 1.5rem;
}

/* ==================== CASES ==================== */
.cases {
  padding: 6rem 0;
  background-color: var(--color-surface);
}

.cases__header {
  text-align: center;
  margin-bottom: 4rem;
}

.cases__tagline {
  display: inline-block;
  font-family: var(--font-family-headings);
  color: var(--color-accent);
  background-color: rgba(109, 91, 255, 0.1);
  padding: 0.25rem 0.75rem;
  border-radius: var(--border-radius);
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.cases__title {
  font-size: clamp(2rem, 5vw, 2.75rem);
  margin-bottom: 1rem;
}

.cases__subtitle {
  font-size: 1.1rem;
  color: var(--color-secondary);
  max-width: 550px;
  margin-left: auto;
  margin-right: auto;
}

.cases__wrapper {
    display: flex;
    flex-direction: column;
    gap: 4rem;
}

.cases__item {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    align-items: center;
}

@media (min-width: 768px) {
    .cases__item {
        grid-template-columns: 1fr 1fr;
        gap: 3rem;
    }

    /* Alternating layout for desktop */
    .cases__item:nth-child(even) .cases__item-image {
        grid-column: 2 / 3;
        grid-row: 1 / 2;
    }
    .cases__item:nth-child(even) .cases__item-content {
        grid-column: 1 / 2;
        grid-row: 1 / 2;
    }
}

.cases__item-image img {
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.cases__item-tag {
    display: inline-block;
    background-color: var(--color-background);
    border: 1px solid var(--color-border);
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
    font-weight: 500;
    border-radius: 6px;
    margin-bottom: 1.5rem;
}

.cases__item-title {
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

.cases__item-problem {
    color: var(--color-secondary);
    margin-bottom: 1.5rem;
    padding-left: 1rem;
    border-left: 3px solid var(--color-accent);
}

.cases__item-solution h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 0.5rem;
    font-family: var(--font-family-body);
}

.cases__item-solution p {
    color: var(--color-secondary);
    font-size: 0.95rem;
}

.cases__item-solution h4:not(:first-child) {
    margin-top: 1rem;
}
/* ==================== FAQ ==================== */
.faq {
  padding: 6rem 0;
  border-top: 1px solid var(--color-border);
}

.faq__header {
  text-align: center;
  margin-bottom: 4rem;
}

.faq__tagline {
  display: inline-block;
  font-family: var(--font-family-headings);
  color: var(--color-accent);
  background-color: rgba(109, 91, 255, 0.1);
  padding: 0.25rem 0.75rem;
  border-radius: var(--border-radius);
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.faq__title {
  font-size: clamp(2rem, 5vw, 2.75rem);
  margin-bottom: 1rem;
}

.faq__subtitle {
  font-size: 1.1rem;
  color: var(--color-secondary);
  max-width: 550px;
  margin-left: auto;
  margin-right: auto;
}

.faq__accordion {
  max-width: 800px;
  margin: 0 auto;
}

.faq__item {
  border-bottom: 1px solid var(--color-border);
}

.faq__header-btn {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 1.5rem 1rem;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  color: var(--color-text);
}

.faq__question {
  font-size: 1.1rem;
  font-weight: 500;
  padding-right: 1rem;
}

.faq__icon {
  transition: transform var(--transition-duration) ease;
  color: var(--color-accent);
  flex-shrink: 0; /* Prevents icon from shrinking */
}

.faq__content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease-out;
}

.faq__answer {
  color: var(--color-secondary);
  line-height: 1.7;
  padding: 0 1rem 1.5rem;
}

/* Active state for FAQ accordion */
.faq__item--active .faq__icon {
  transform: rotate(180deg);
}

.faq__item--active .faq__content {
  /* max-height is set by JS */
}

/* ==================== COOKIE POPUP ==================== */
.cookie-popup {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 1.5rem 2rem;
  z-index: 200;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  transform: translateY(0);
  transition: transform var(--transition-duration) ease-in-out;
}

.cookie-popup--hidden {
  transform: translateY(150%);
}

.cookie-popup__text {
  color: var(--color-secondary);
  font-size: 0.9rem;
}

.cookie-popup__link {
  color: var(--color-text);
  text-decoration: underline;
}

.cookie-popup__button {
  background-color: var(--color-accent);
  color: var(--color-text);
  border: none;
  padding: 0.6rem 1.2rem;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-size: 0.9rem;
  white-space: nowrap;
  transition: background-color var(--transition-duration) ease;
}

.cookie-popup__button:hover {
    background-color: #5847d1; /* A bit darker accent color */
}

/* Responsive styles for cookie popup */
@media (max-width: 768px) {
  .cookie-popup {
    flex-direction: column;
    text-align: center;
  }
}

/* ==================== POLICY & TEXT PAGES ==================== */
.pages {
    padding: 8rem 0 6rem; /* 8rem top for header offset */
}

.pages .container {
    max-width: 800px; /* Optimal width for reading text */
}

.pages h1 {
    font-size: clamp(2.25rem, 5vw, 3rem);
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 1rem;
}

.pages h2 {
    font-size: clamp(1.5rem, 4vw, 1.75rem);
    margin-top: 3rem;
    margin-bottom: 1.5rem;
    color: var(--color-text);
}

.pages p {
    color: var(--color-secondary);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.pages a {
    color: var(--color-accent);
    text-decoration: underline;
    transition: color var(--transition-duration) ease;
}

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

.pages ul,
.pages ol {
    padding-left: 2rem;
    margin-bottom: 1.5rem;
    color: var(--color-secondary);
}

.pages li {
    margin-bottom: 0.75rem;
    line-height: 1.8;
}

.pages li::marker {
    color: var(--color-accent);
}

.pages strong {
    color: var(--color-text);
    font-weight: 500;
}