/* ===========================
   ОСНОВА — Landing Page CSS
   =========================== */

/* ---------- Переменные ---------- */
:root {
  --blue: #0C2340;
  --blue-mid: #163860;
  --blue-hover: #0A1C33;
  --deep: #05101E;
  --dark: #0f0f0f;
  --text: #1a1a1a;
  --muted: #666;
  --border: #e8e8e8;
  --bg-soft: #fafafa;
  --bg-alt: #f5f5f5;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background-color: #ffffff;
  -webkit-font-smoothing: antialiased;
}

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

ul {
  list-style: none;
}

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

/* ---------- Header ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: #ffffff;
  border-bottom: 1px solid #efefef;
  padding: 0;
}

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

.header__logo {
  display: flex;
  align-items: baseline;
  gap: 12px;
  text-decoration: none;
}

.header__logo-name {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--blue);
}

.header__logo-tag {
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: #aaa;
  font-weight: 400;
}

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

.header__nav-item {
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: #555;
  transition: color 0.2s ease;
}

.header__nav-item:hover {
  color: var(--blue);
}

.header__nav-link {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blue);
  padding: 10px 24px;
  border: 1.5px solid var(--blue);
  border-radius: 4px;
  transition: background-color 0.2s ease, color 0.2s ease;
  white-space: nowrap;
}

.header__nav-link:hover {
  background-color: var(--blue);
  color: #ffffff;
}

/* ---------- Container ---------- */
.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 40px;
}

/* ---------- Section common ---------- */
section {
  padding: 100px 0;
}

.section-title {
  font-size: 1.75rem;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 56px;
}

/* ---------- Button ---------- */
.btn {
  display: inline-block;
  padding: 14px 32px;
  background-color: var(--blue);
  color: #ffffff;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 2px solid var(--blue);
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.btn:hover {
  background-color: transparent;
  color: var(--blue);
}

.btn--full {
  width: auto;
  min-width: 240px;
}

/* ---------- Cards ---------- */
.cards-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.card {
  padding: 40px 36px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background-color: #ffffff;
}

.card__tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--blue);
  border: 1px solid var(--blue);
  border-radius: 20px;
  padding: 4px 12px;
  margin-bottom: 24px;
  opacity: 0.7;
}

.card__heading {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 12px;
  line-height: 1.35;
}

.card__sub {
  font-size: 0.85rem;
  color: #888;
  margin-bottom: 20px;
  font-weight: 400;
}

.card__text {
  font-size: 0.95rem;
  color: #444;
  margin-bottom: 10px;
  line-height: 1.6;
}

.card__list {
  margin: 8px 0 16px 0;
}

.card__list li {
  font-size: 0.9rem;
  color: #555;
  padding-left: 16px;
  position: relative;
  margin-bottom: 6px;
  line-height: 1.5;
}

.card__list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: #bbb;
}

.card__quote {
  font-size: 1.05rem;
  font-weight: 600;
  font-style: italic;
  color: var(--dark);
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid #f0f0f0;
}

/* Numbered cards */
.card--numbered {
  padding: 32px 28px;
}

.card__num {
  font-size: 2rem;
  font-weight: 700;
  color: var(--blue);
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  line-height: 1;
  opacity: 0.8;
}

/* Solution cards */
.card--solution {
  padding: 48px 40px;
}

/* ---------- Hero ---------- */
.hero {
  min-height: calc(92vh - 64px);
  padding: 0;
  border-bottom: 1px solid #efefef;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.hero__bottom {
  padding-bottom: 64px;
}

.hero__label {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #999;
  font-weight: 500;
  margin-bottom: 24px;
}

.hero__title {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 40px;
}

.hero__title-main {
  font-size: clamp(4rem, 8vw, 9rem);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  color: var(--dark);
  display: block;
}

.hero__title-sub {
  font-size: clamp(1.2rem, 2vw, 2rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  color: var(--dark);
  display: block;
}

.hero__sub-row {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 520px;
}

.hero__sub {
  font-size: 1.2rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text);
}

.hero__desc {
  font-size: 0.95rem;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 16px;
}

/* ---------- Scenes ---------- */
.scenes {
  background-color: var(--bg-soft);
}

.scenes__bottom {
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid #e0e0e0;
}

.scenes__conclusion {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 12px;
}

.scenes__note {
  font-size: 1rem;
  color: var(--muted);
  line-height: 1.6;
}

.card__text--end {
  margin-top: 16px;
  font-weight: 600;
  color: var(--dark);
}

/* ---------- Anchor ---------- */
.anchor {
  padding: 120px 0;
  border-top: 1px solid #efefef;
  border-bottom: 1px solid #efefef;
}

.anchor__inner {
  max-width: 600px;
}

.anchor__line {
  font-size: 1.35rem;
  font-weight: 400;
  color: #444;
  line-height: 1.6;
  margin-bottom: 8px;
}

.anchor__line--muted {
  color: #888;
  font-size: 1.1rem;
  margin-top: 24px;
}

.anchor__quote {
  font-size: 3.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--blue);
  margin: 24px 0 16px;
  line-height: 1.05;
}

/* ---------- Lose ---------- */
.lose {
  background-color: #ffffff;
}

/* ---------- About ---------- */
.about {
  background-color: var(--bg-alt);
}

.about__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.about__steps {
  padding-top: calc(4.2rem + 56px);
}

.about__text {
  font-size: 1rem;
  color: #555;
  margin-bottom: 16px;
  line-height: 1.6;
}

.about__list {
  margin-top: 8px;
}

.about__list li {
  font-size: 0.95rem;
  color: #444;
  padding: 10px 0;
  border-bottom: 1px solid #e4e4e4;
}

.about__list li:last-child {
  border-bottom: none;
}

.about__steps-lead {
  font-size: 1rem;
  color: #555;
  margin-bottom: 20px;
}

.about__steps-list {
  counter-reset: none;
}

.about__steps-list li {
  font-size: 0.95rem;
  color: #444;
  padding: 12px 0 12px 20px;
  border-bottom: 1px solid #e4e4e4;
  position: relative;
}

.about__steps-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: #bbb;
}

.about__steps-list li:last-child {
  border-bottom: none;
}

/* ---------- Solutions ---------- */
.solutions {
  background-color: #ffffff;
}

/* ---------- Process ---------- */
.process {
  background-color: var(--bg-soft);
}

.process__steps {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.process__step {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 32px;
  padding: 36px 0;
  border-bottom: 1px solid #efefef;
  align-items: start;
}

.process__step:last-child {
  border-bottom: none;
}

.process__num {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--blue);
  opacity: 0.5;
  padding-top: 3px;
}

.process__heading {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 8px;
}

.process__text {
  font-size: 0.95rem;
  color: var(--muted);
  line-height: 1.6;
}

/* ---------- Cases ---------- */
.cases {
  background-color: var(--deep);
}

.cases .section-title {
  color: #ffffff;
  letter-spacing: 0.05em;
}

.cases__grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
}

.case:nth-child(1),
.case:nth-child(2),
.case:nth-child(3) {
  grid-column: span 2;
}

.case:nth-child(4),
.case:nth-child(5) {
  grid-column: span 3;
}

.case {
  padding: 40px 36px;
  background-color: #ffffff;
}

.case__name {
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 12px;
  font-weight: 600;
  opacity: 0.6;
}

.case__name-note {
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
}

.case__growth {
  font-size: 1rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 20px;
  line-height: 1.3;
}

.case__text {
  font-size: 0.9rem;
  color: #555;
  line-height: 1.6;
  margin-bottom: 8px;
}

/* ---------- Expert ---------- */
.expert {
  background-color: #ffffff;
}

.expert__inner {
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: 80px;
  align-items: start;
}

.expert__photo-wrap {
  position: sticky;
  top: 80px;
}

.expert__photo {
  width: 100%;
  display: block;
  border-radius: 4px;
  object-fit: cover;
}

.expert__name {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 6px;
  line-height: 1.2;
}

.expert__intro {
  font-size: 1rem;
  font-weight: 500;
  color: var(--muted);
  margin-bottom: 28px;
  line-height: 1.4;
}

.expert__years {
  display: inline-block;
  margin-top: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--blue);
  letter-spacing: 0.03em;
  border-top: 1px solid var(--border);
  padding-top: 16px;
  width: 100%;
}

.expert__text {
  font-size: 1rem;
  color: #555;
  margin-bottom: 12px;
  line-height: 1.6;
}

.expert__list {
  margin: 12px 0 28px;
}

.expert__list li {
  font-size: 0.95rem;
  color: #444;
  padding: 10px 0 10px 20px;
  border-bottom: 1px solid #f0f0f0;
  position: relative;
}

.expert__list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: #ccc;
}

.expert__list li:last-child {
  border-bottom: none;
}

.expert__note {
  font-size: 0.9rem;
  color: #999;
  font-weight: 500;
}

/* ---------- Contact / Form ---------- */
.contact {
  background-color: var(--deep);
  padding: 0;
}

.contact__plashka {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  min-height: 80vh;
  align-items: stretch;
}

.contact__left {
  padding: 100px 48px 100px 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-end;
  text-align: right;
}

.contact__left .section-title {
  color: #ffffff;
  margin-bottom: 32px;
  font-size: 3rem;
  line-height: 1.1;
  letter-spacing: 0.03em;
}

.contact__desc {
  font-size: 1rem;
  color: rgba(255,255,255,0.38);
  line-height: 1.75;
  max-width: 340px;
}

.contact__right {
  padding: 60px 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact__card {
  background-color: #ffffff;
  border-radius: 8px;
  padding: 52px 48px;
  width: 100%;
  max-width: 520px;
}

.form {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form__field {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.form__label {
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #999;
  font-weight: 600;
}

.form__input,
.form__textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid #e0e0e0;
  border-radius: 4px;
  font-family: inherit;
  font-size: 0.9rem;
  color: var(--text);
  background-color: #fff;
  outline: none;
  transition: border-color 0.2s ease;
}

.form__input:focus,
.form__textarea:focus {
  border-color: var(--blue);
}

.form__input::placeholder,
.form__textarea::placeholder {
  color: #ccc;
}

.form__textarea {
  resize: vertical;
  min-height: 90px;
}

.form__radios {
  display: flex;
  flex-direction: column;
  gap: 9px;
  margin-top: 2px;
}

.form__radio {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-size: 0.88rem;
  color: #555;
}

.form__radio input[type="radio"] {
  width: 16px;
  height: 16px;
  accent-color: var(--blue);
  flex-shrink: 0;
}

.form .btn {
  background-color: var(--blue);
  color: #ffffff;
  border-color: var(--blue);
  margin-top: 6px;
}

.form .btn:hover {
  background-color: transparent;
  color: var(--blue);
}

/* ---------- Final ---------- */
.final {
  padding: 120px 0;
  border-top: 1px solid #efefef;
}

.final__inner {
  max-width: 600px;
}

.final__text {
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text);
  margin-bottom: 40px;
}

/* ---------- Footer ---------- */
.footer {
  padding: 56px 0;
  border-top: 1px solid #efefef;
  background-color: #ffffff;
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 40px;
}

.footer__name {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--dark);
  margin-bottom: 4px;
}

.footer__tagline {
  font-size: 0.78rem;
  color: #aaa;
  letter-spacing: 0.04em;
}

.footer__contacts {
  display: flex;
  flex-direction: column;
  gap: 10px;
  text-align: right;
}

.footer__link {
  font-size: 0.9rem;
  color: #555;
  transition: color 0.2s ease;
}

.footer__link:hover {
  color: var(--blue);
}

/* ===========================
   АДАПТИВ (Mobile)
   =========================== */

@media (max-width: 960px) {
  .container {
    padding: 0 24px;
  }

  section {
    padding: 72px 0;
  }

  .section-title {
    font-size: 1.35rem;
    margin-bottom: 40px;
  }

  /* Hero */
  .hero {
    min-height: calc(85vh - 64px);
  }

  .hero__bottom {
    padding-bottom: 48px;
  }

  .hero__title-main {
    font-size: clamp(3rem, 7vw, 5.5rem);
  }

  .hero__title-sub {
    font-size: clamp(1rem, 2.5vw, 1.6rem);
  }

  .hero__sub {
    font-size: 1.1rem;
  }

  /* Cards */
  .cards-row {
    grid-template-columns: 1fr;
  }

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

  /* About */
  .about__inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .about__steps {
    padding-top: 0;
  }

  /* Cases */
  .cases__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .case:nth-child(1),
  .case:nth-child(2),
  .case:nth-child(3),
  .case:nth-child(4),
  .case:nth-child(5) {
    grid-column: span 1;
  }

  .case {
    padding: 36px 28px;
  }

  /* Expert */
  .expert__inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .expert__photo-wrap {
    position: static;
    max-width: 400px;
  }

  /* Process */
  .process__step {
    grid-template-columns: 48px 1fr;
    gap: 20px;
  }

  /* Header */
  .header__logo-tag {
    display: none;
  }

  .header__nav-item {
    display: none;
  }

  /* Form / Contact plashka */
  .contact__plashka {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .contact__left {
    padding: 64px 24px 48px;
    align-items: flex-start;
    text-align: left;
  }

  .contact__left .section-title {
    font-size: 2rem;
  }

  .contact__right {
    padding: 0 24px 64px;
  }

  .contact__card {
    padding: 40px 32px;
  }

  .form__row {
    grid-template-columns: 1fr;
  }

  /* Footer */
  .footer__inner {
    flex-direction: column;
    gap: 28px;
  }

  .footer__contacts {
    text-align: left;
  }

  /* Anchor */
  .anchor__quote {
    font-size: 2.4rem;
  }
}

@media (max-width: 600px) {
  .container {
    padding: 0 20px;
  }

  section {
    padding: 56px 0;
  }

  .section-title {
    font-size: 1.15rem;
  }

  .hero {
    min-height: calc(80vh - 64px);
  }

  .hero__bottom {
    padding-bottom: 40px;
  }

  .hero__title-main {
    font-size: clamp(2.4rem, 9vw, 3.5rem);
  }

  .hero__title-sub {
    font-size: clamp(0.9rem, 3vw, 1.2rem);
  }

  .cards-grid {
    grid-template-columns: 1fr;
  }

  .cases__grid {
    grid-template-columns: 1fr;
  }

  .case:nth-child(1),
  .case:nth-child(2),
  .case:nth-child(3),
  .case:nth-child(4),
  .case:nth-child(5) {
    grid-column: span 1;
  }

  .card {
    padding: 28px 24px;
  }

  .card--solution {
    padding: 32px 28px;
  }

  .case__num {
    font-size: 3rem;
  }

  .final__text {
    font-size: 1.2rem;
  }

  .anchor__line {
    font-size: 1.1rem;
  }

  .anchor__quote {
    font-size: 2rem;
  }

  .contact__left {
    padding: 48px 20px 36px;
  }

  .contact__left .section-title {
    font-size: 1.6rem;
  }

  .contact__right {
    padding: 0 20px 48px;
  }

  .contact__card {
    padding: 32px 24px;
  }
}