/* Сигнал — временный бренд веб-студии */
:root {
  --blue-950: #071a3a;
  --blue-900: #0b2f6b;
  --blue-700: #1a56b0;
  --blue-500: #3b7ddd;
  --blue-100: #e7f0ff;
  --blue-50: #f4f8ff;
  --white: #ffffff;
  --ink: #0f1c33;
  --muted: #5a6b86;
  --pink: #ff4d8d;
  --pink-soft: #ffd6e5;
  --line: rgba(15, 28, 51, 0.1);
  --radius: 18px;
  --shadow: 0 24px 60px rgba(11, 47, 107, 0.12);
  --font-display: "Unbounded", system-ui, sans-serif;
  --font-body: "Manrope", system-ui, sans-serif;
  --container: 1120px;
  --header-h: 72px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(59, 125, 221, 0.18), transparent 60%),
    radial-gradient(900px 500px at 95% 5%, rgba(255, 77, 141, 0.12), transparent 55%),
    linear-gradient(180deg, var(--blue-50) 0%, var(--white) 40%, var(--blue-50) 100%);
  background-attachment: fixed;
  line-height: 1.6;
  min-height: 100vh;
}

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

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

button,
input,
textarea,
select {
  font: inherit;
}

.container {
  width: min(100% - 2.5rem, var(--container));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  backdrop-filter: blur(16px);
  background: rgba(244, 248, 255, 0.82);
  border-bottom: 1px solid var(--line);
}

.nav {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.03em;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
}

.logo-mark {
  width: 28px;
  height: 28px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--blue-700), var(--pink));
  box-shadow: 0 8px 20px rgba(255, 77, 141, 0.35);
  position: relative;
  overflow: hidden;
}

.logo-mark::after {
  content: "";
  position: absolute;
  inset: 8px 6px auto;
  height: 3px;
  border-radius: 999px;
  background: white;
  box-shadow: 0 6px 0 rgba(255, 255, 255, 0.55);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  padding: 0.55rem 0.85rem;
  border-radius: 999px;
  color: var(--muted);
  font-weight: 600;
  font-size: 0.95rem;
  transition: color 0.2s ease, background 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--blue-900);
  background: rgba(26, 86, 176, 0.08);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.15rem;
  border-radius: 999px;
  background: var(--blue-900);
  color: white !important;
  font-weight: 700;
  box-shadow: 0 10px 24px rgba(11, 47, 107, 0.25);
  transition: transform 0.2s ease, background 0.2s ease;
}

.nav-cta:hover {
  background: var(--pink);
  transform: translateY(-1px);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: white;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--blue-900);
  border-radius: 2px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.95rem 1.4rem;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  font-weight: 700;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--blue-700), var(--blue-900));
  color: white;
  box-shadow: 0 14px 30px rgba(26, 86, 176, 0.28);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--pink), #e11d6e);
  box-shadow: 0 14px 30px rgba(255, 77, 141, 0.3);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.7);
  color: var(--blue-900);
  border: 1px solid var(--line);
}

.btn-ghost:hover {
  border-color: var(--pink);
  color: var(--pink);
}

/* Hero */
.hero {
  position: relative;
  min-height: calc(100vh - var(--header-h));
  display: grid;
  align-items: end;
  overflow: hidden;
  isolation: isolate;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(180deg, transparent 35%, rgba(244, 248, 255, 0.92) 100%),
    radial-gradient(circle at 70% 35%, rgba(255, 77, 141, 0.28), transparent 28%),
    radial-gradient(circle at 30% 20%, rgba(59, 125, 221, 0.35), transparent 35%),
    linear-gradient(145deg, #0b2f6b 0%, #1a56b0 45%, #5ea0ff 100%);
  animation: heroPulse 10s ease-in-out infinite alternate;
}

.hero-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(circle at 60% 40%, black, transparent 70%);
  opacity: 0.5;
}

.hero-inner {
  padding: 5rem 0 4.5rem;
  max-width: 760px;
}

.brand-hero {
  font-family: var(--font-display);
  font-size: clamp(3.4rem, 10vw, 6.4rem);
  line-height: 0.95;
  letter-spacing: -0.05em;
  margin: 0 0 1.25rem;
  color: white;
  text-shadow: 0 10px 40px rgba(7, 26, 58, 0.35);
  animation: riseIn 0.9s ease both;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 3.4vw, 2.35rem);
  line-height: 1.2;
  letter-spacing: -0.03em;
  margin: 0 0 1rem;
  color: white;
  max-width: 16ch;
  animation: riseIn 0.9s ease 0.1s both;
}

.hero p {
  margin: 0 0 1.75rem;
  color: rgba(255, 255, 255, 0.88);
  font-size: 1.1rem;
  max-width: 38ch;
  animation: riseIn 0.9s ease 0.18s both;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  animation: riseIn 0.9s ease 0.26s both;
}

.page-hero {
  padding: 4.5rem 0 2.5rem;
}

.page-hero .eyebrow {
  display: inline-block;
  margin-bottom: 0.85rem;
  color: var(--pink);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.78rem;
}

.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin: 0 0 0.9rem;
  color: var(--blue-950);
}

.page-hero p {
  margin: 0;
  color: var(--muted);
  font-size: 1.1rem;
  max-width: 52ch;
}

/* Sections */
.section {
  padding: 4.5rem 0;
}

.section-head {
  display: grid;
  gap: 0.75rem;
  margin-bottom: 2.25rem;
  max-width: 640px;
}

.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3.5vw, 2.5rem);
  letter-spacing: -0.035em;
  margin: 0;
  color: var(--blue-950);
}

.section-head p {
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.split {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 2.5rem;
  align-items: center;
}

.visual-panel {
  position: relative;
  min-height: 420px;
  border-radius: 28px;
  overflow: hidden;
  background:
    radial-gradient(circle at 30% 20%, rgba(255, 77, 141, 0.35), transparent 40%),
    linear-gradient(160deg, #0b2f6b, #3b7ddd 55%, #9ec4ff);
  box-shadow: var(--shadow);
}

.visual-panel::after {
  content: "";
  position: absolute;
  inset: auto 12% 12% 12%;
  height: 48%;
  border-radius: 18px 18px 8px 8px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 20px 40px rgba(7, 26, 58, 0.25);
}

.visual-panel::before {
  content: "";
  position: absolute;
  top: 18%;
  left: 18%;
  width: 42%;
  height: 12%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--pink), #ff9fc2);
  z-index: 1;
}

.service-list {
  display: grid;
  gap: 1.25rem;
}

.service-item {
  padding: 1.25rem 0;
  border-top: 1px solid var(--line);
}

.service-item:last-child {
  border-bottom: 1px solid var(--line);
}

.service-item h3 {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.service-item p {
  margin: 0;
  color: var(--muted);
}

.service-meta {
  margin-top: 0.65rem;
  color: var(--blue-700);
  font-weight: 700;
  font-size: 0.92rem;
}

/* Process */
.process {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  counter-reset: step;
}

.process-step {
  position: relative;
  padding-top: 0.5rem;
}

.process-step::before {
  counter-increment: step;
  content: "0" counter(step);
  display: block;
  font-family: var(--font-display);
  font-size: 0.9rem;
  color: var(--pink);
  margin-bottom: 0.85rem;
  letter-spacing: 0.04em;
}

.process-step h3 {
  margin: 0 0 0.4rem;
  font-size: 1.05rem;
  font-family: var(--font-display);
  letter-spacing: -0.02em;
}

.process-step p {
  margin: 0;
  color: var(--muted);
  font-size: 0.96rem;
}

/* Portfolio */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.project {
  position: relative;
  min-height: 280px;
  border-radius: 24px;
  overflow: hidden;
  color: white;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.4rem;
  isolation: isolate;
  transition: transform 0.3s ease;
}

.project:hover {
  transform: translateY(-4px);
}

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

.project:nth-child(1) .project-bg {
  background: linear-gradient(160deg, #0b2f6b, #ff4d8d);
}

.project:nth-child(2) .project-bg {
  background: linear-gradient(160deg, #123f8c, #5ea0ff);
}

.project:nth-child(3) .project-bg {
  background: linear-gradient(160deg, #1a56b0, #ff7aa8);
}

.project:nth-child(4) .project-bg {
  background: linear-gradient(160deg, #071a3a, #3b7ddd);
}

.project:nth-child(5) .project-bg {
  background: linear-gradient(160deg, #254f9a, #ff4d8d 120%);
}

.project:nth-child(6) .project-bg {
  background: linear-gradient(160deg, #0e3b84, #89b6ff);
}

.project-tag {
  font-size: 0.8rem;
  font-weight: 700;
  opacity: 0.85;
  margin-bottom: 0.4rem;
}

.project h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.project p {
  margin: 0.45rem 0 0;
  opacity: 0.9;
  font-size: 0.95rem;
}

/* Pricing / packages */
.packages {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.1rem;
}

.package {
  padding: 1.6rem;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
  backdrop-filter: blur(8px);
}

.package.featured {
  border-color: transparent;
  background: linear-gradient(180deg, rgba(255, 77, 141, 0.1), rgba(255, 255, 255, 0.85));
  box-shadow: var(--shadow);
}

.package h3 {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  letter-spacing: -0.02em;
}

.package .price {
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: var(--blue-900);
  margin: 0.8rem 0 1rem;
}

.package ul {
  margin: 0 0 1.4rem;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.55rem;
  color: var(--muted);
}

.package li::before {
  content: "→";
  color: var(--pink);
  margin-right: 0.45rem;
  font-weight: 700;
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 2rem;
  align-items: start;
}

.about-photo {
  aspect-ratio: 4 / 5;
  border-radius: 28px;
  background:
    radial-gradient(circle at 40% 30%, rgba(255, 77, 141, 0.4), transparent 40%),
    linear-gradient(160deg, #1a56b0, #0b2f6b);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.about-photo::after {
  content: "Сигнал";
  position: absolute;
  left: 1.25rem;
  bottom: 1.25rem;
  font-family: var(--font-display);
  color: white;
  font-size: 1.4rem;
  letter-spacing: -0.03em;
}

.about-copy h2 {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  letter-spacing: -0.03em;
  margin: 0 0 1rem;
}

.about-copy p {
  color: var(--muted);
  margin: 0 0 1rem;
}

.facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 1.75rem;
}

.fact strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--blue-900);
  letter-spacing: -0.03em;
}

.fact span {
  color: var(--muted);
  font-size: 0.92rem;
}

/* Contact */
.contact-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 2rem;
  align-items: start;
}

.contact-card {
  padding: 1.6rem;
  border-radius: 24px;
  background: linear-gradient(160deg, var(--blue-900), var(--blue-700));
  color: white;
  box-shadow: var(--shadow);
}

.contact-card h2 {
  font-family: var(--font-display);
  margin: 0 0 0.75rem;
  letter-spacing: -0.03em;
}

.contact-card p {
  margin: 0 0 1.4rem;
  opacity: 0.9;
}

.contact-links {
  display: grid;
  gap: 0.75rem;
}

.contact-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1rem;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.1);
  font-weight: 700;
  transition: background 0.2s ease;
}

.contact-links a:hover {
  background: rgba(255, 77, 141, 0.35);
}

.form {
  display: grid;
  gap: 0.9rem;
  padding: 1.6rem;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid var(--line);
}

.form label {
  display: grid;
  gap: 0.4rem;
  font-weight: 700;
  font-size: 0.92rem;
}

.form input,
.form textarea,
.form select {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: white;
  color: var(--ink);
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form input:focus,
.form textarea:focus,
.form select:focus {
  border-color: var(--blue-500);
  box-shadow: 0 0 0 4px rgba(59, 125, 221, 0.15);
}

.form textarea {
  min-height: 140px;
  resize: vertical;
}

.form-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.form-success {
  display: none;
  padding: 0.9rem 1rem;
  border-radius: 12px;
  background: var(--pink-soft);
  color: var(--blue-950);
  font-weight: 700;
}

.form-success.show {
  display: block;
  animation: riseIn 0.4s ease;
}

/* CTA band */
.cta-band {
  margin: 1rem 0 4rem;
  padding: 2.4rem;
  border-radius: 28px;
  background:
    radial-gradient(circle at 85% 20%, rgba(255, 77, 141, 0.35), transparent 35%),
    linear-gradient(120deg, var(--blue-900), var(--blue-700));
  color: white;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.cta-band h2 {
  font-family: var(--font-display);
  margin: 0 0 0.4rem;
  letter-spacing: -0.03em;
  font-size: clamp(1.5rem, 3vw, 2rem);
}

.cta-band p {
  margin: 0;
  opacity: 0.9;
}

.cta-band .btn-primary {
  background: white;
  color: var(--blue-900);
  box-shadow: none;
}

.cta-band .btn-primary:hover {
  background: var(--pink);
  color: white;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 2rem 0 2.5rem;
  color: var(--muted);
}

.footer-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

.footer-brand {
  font-family: var(--font-display);
  color: var(--blue-900);
  font-weight: 700;
}

/* Reveal animations */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

@keyframes riseIn {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes heroPulse {
  from {
    filter: saturate(1);
    transform: scale(1);
  }
  to {
    filter: saturate(1.08);
    transform: scale(1.03);
  }
}

/* Mobile */
@media (max-width: 900px) {
  .menu-toggle {
    display: inline-flex;
  }

  .nav-links {
    position: fixed;
    inset: var(--header-h) 1rem auto;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 0.75rem;
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid var(--line);
    border-radius: 18px;
    box-shadow: var(--shadow);
  }

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

  .nav-cta {
    display: none;
  }

  .split,
  .about-grid,
  .contact-layout,
  .process,
  .portfolio-grid,
  .packages,
  .facts {
    grid-template-columns: 1fr;
  }

  .visual-panel {
    min-height: 300px;
  }

  .hero-inner {
    padding-top: 4rem;
  }

  .cta-band {
    padding: 1.6rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}