/* ═══════════════════════════════════════════
   MMIX — Marketing Mix Website Styles
   ═══════════════════════════════════════════ */

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

:root {
  --color-bg: #0a0a0f;
  --color-surface: #12121a;
  --color-surface-2: #1a1a26;
  --color-border: rgba(255, 255, 255, 0.06);
  --color-border-hover: rgba(255, 255, 255, 0.12);
  --color-text: #e8e8ed;
  --color-text-muted: #8888a0;
  --color-text-dim: #55556a;
  --color-primary: #6c5ce7;
  --color-primary-light: #a29bfe;
  --color-accent: #00cec9;
  --color-gradient-1: #6c5ce7;
  --color-gradient-2: #00cec9;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

img {
  max-width: 100%;
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ─── Header ─── */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 16px 0;
  transition: var(--transition);
}

.header--scrolled {
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  padding: 12px 0;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.25rem;
}

.logo__mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--color-gradient-1), var(--color-gradient-2));
  color: #fff;
  font-weight: 800;
  font-size: 1rem;
}

.logo__text {
  letter-spacing: 0.05em;
}

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

.nav__link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: var(--transition);
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-gradient-1), var(--color-gradient-2));
  transition: var(--transition);
  border-radius: 1px;
}

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

.nav__link:hover::after,
.nav__link--active::after {
  width: 100%;
}

.nav__link--active {
  color: var(--color-text);
}

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: var(--transition);
}

.burger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.burger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: 50px;
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-gradient-1), var(--color-gradient-2));
  color: #fff;
  box-shadow: 0 4px 24px rgba(108, 92, 231, 0.3);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(108, 92, 231, 0.45);
}

.btn--outline {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border-hover);
}

.btn--outline:hover {
  border-color: var(--color-primary-light);
  color: var(--color-primary-light);
  background: rgba(108, 92, 231, 0.05);
}

.btn--full {
  width: 100%;
}

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

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(108, 92, 231, 0.15), transparent),
    radial-gradient(ellipse 60% 50% at 80% 20%, rgba(0, 206, 201, 0.08), transparent),
    radial-gradient(ellipse 40% 40% at 20% 80%, rgba(108, 92, 231, 0.06), transparent);
  pointer-events: none;
}

.hero__inner {
  position: relative;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero__badge {
  display: inline-block;
  padding: 8px 20px;
  border-radius: 50px;
  background: rgba(108, 92, 231, 0.1);
  border: 1px solid rgba(108, 92, 231, 0.2);
  color: var(--color-primary-light);
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 28px;
  letter-spacing: 0.04em;
}

.hero__title {
  font-size: clamp(2.2rem, 5.5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.gradient-text {
  background: linear-gradient(135deg, var(--color-gradient-1), var(--color-gradient-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 72px;
}

.hero__stats {
  display: flex;
  justify-content: center;
  gap: 64px;
}

.stat {
  text-align: center;
}

.stat__number {
  font-size: 2.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-text), var(--color-text-muted));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat__plus {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-primary-light);
}

.stat__label {
  display: block;
  font-size: 0.85rem;
  color: var(--color-text-dim);
  margin-top: 4px;
}

/* ─── Section common ─── */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-tag {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 50px;
  background: rgba(108, 92, 231, 0.1);
  border: 1px solid rgba(108, 92, 231, 0.15);
  color: var(--color-primary-light);
  font-size: 0.8rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 20px;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  max-width: 500px;
  margin: 16px auto 0;
}

/* ─── Services ─── */
.services {
  padding: 120px 0;
  position: relative;
}

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

.service-card {
  position: relative;
  padding: 36px 32px;
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  transition: var(--transition);
  cursor: default;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-gradient-1), var(--color-gradient-2));
  opacity: 0;
  transition: var(--transition);
}

.service-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.3);
}

.service-card:hover::before {
  opacity: 1;
}

.service-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: rgba(108, 92, 231, 0.1);
  color: var(--color-primary-light);
  margin-bottom: 24px;
}

.service-card__title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.service-card__text {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

.service-card__arrow {
  display: inline-block;
  margin-top: 20px;
  color: var(--color-primary-light);
  font-size: 1.2rem;
  opacity: 0;
  transform: translateX(-8px);
  transition: var(--transition);
}

.service-card:hover .service-card__arrow {
  opacity: 1;
  transform: translateX(0);
}

/* ─── About ─── */
.about {
  padding: 120px 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

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

.about__visual {
  position: relative;
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.about__circle {
  width: 240px;
  height: 240px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  position: absolute;
  animation: rotate 20s linear infinite;
}

@keyframes rotate {
  to { transform: rotate(360deg); }
}

.about__card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 24px;
  border-radius: var(--radius);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  animation: float 6s ease-in-out infinite;
  font-weight: 600;
  font-size: 0.9rem;
}

.about__card-icon {
  font-size: 1.5rem;
}

.about__card--1 { top: 20px; left: 10%; animation-delay: 0s; }
.about__card--2 { top: 60px; right: 5%; animation-delay: 1.5s; }
.about__card--3 { bottom: 60px; left: 5%; animation-delay: 3s; }
.about__card--4 { bottom: 20px; right: 10%; animation-delay: 4.5s; }

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

.about__content {
  max-width: 520px;
}

.about__text {
  font-size: 1rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin: 24px 0;
}

.about__list {
  list-style: none;
  margin: 24px 0;
}

.about__list li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 14px;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.about__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-gradient-1), var(--color-gradient-2));
}

.about__highlight {
  font-size: 0.95rem;
  color: var(--color-primary-light);
  font-weight: 500;
  padding: 16px 20px;
  border-left: 3px solid var(--color-primary);
  background: rgba(108, 92, 231, 0.05);
  border-radius: 0 var(--radius) var(--radius) 0;
}

/* ─── Process ─── */
.process {
  padding: 120px 0;
}

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

.process__timeline::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 12.5%;
  right: 12.5%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-gradient-1), var(--color-gradient-2));
  opacity: 0.2;
}

.process__step {
  text-align: center;
  padding: 32px 20px;
  position: relative;
}

.process__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--color-primary-light);
  margin-bottom: 24px;
  position: relative;
  transition: var(--transition);
}

.process__step:hover .process__number {
  border-color: var(--color-primary);
  background: rgba(108, 92, 231, 0.1);
  box-shadow: 0 0 24px rgba(108, 92, 231, 0.2);
}

.process__step-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.process__step-text {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ─── Contacts ─── */
.contacts {
  padding: 120px 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
}

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

.contacts__text {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  margin: 20px 0 40px;
  line-height: 1.7;
}

.contacts__details {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-item__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(108, 92, 231, 0.1);
  color: var(--color-primary-light);
  flex-shrink: 0;
}

.contact-item__label {
  display: block;
  font-size: 0.8rem;
  color: var(--color-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 4px;
}

.contact-item__value {
  font-size: 0.95rem;
  color: var(--color-text);
}

.contact-item__value--link {
  color: var(--color-primary-light);
  transition: var(--transition);
}

.contact-item__value--link:hover {
  color: var(--color-accent);
}

/* Form */
.contacts__form {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.contacts__form-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 28px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  color: var(--color-text);
  font-family: var(--font);
  font-size: 0.95rem;
  transition: var(--transition);
  outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-dim);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

/* ─── Footer ─── */
.footer {
  padding: 64px 0 32px;
  border-top: 1px solid var(--color-border);
}

.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
}

.footer__desc {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-top: 16px;
  max-width: 300px;
  line-height: 1.7;
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer__links h4 {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.footer__links a {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  transition: var(--transition);
}

.footer__links a:hover {
  color: var(--color-primary-light);
}

.footer__bottom {
  grid-column: 1 / -1;
  display: flex;
  justify-content: space-between;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
  font-size: 0.82rem;
  color: var(--color-text-dim);
}

/* ─── Reveal animation ─── */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ─── Toast ─── */
.toast {
  position: fixed;
  bottom: 32px;
  right: 32px;
  padding: 16px 28px;
  border-radius: var(--radius);
  background: var(--color-surface-2);
  border: 1px solid var(--color-primary);
  color: var(--color-text);
  font-size: 0.9rem;
  font-weight: 500;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
  transform: translateY(100px);
  opacity: 0;
  transition: var(--transition);
  z-index: 200;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

/* ─── Responsive ─── */
@media (max-width: 1024px) {
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .process__timeline::before {
    display: none;
  }
}

@media (max-width: 768px) {
  .nav {
    position: fixed;
    top: 0;
    right: 0;
    width: 280px;
    height: 100vh;
    background: var(--color-surface);
    border-left: 1px solid var(--color-border);
    flex-direction: column;
    padding: 80px 32px 32px;
    gap: 24px;
    transform: translateX(100%);
    transition: var(--transition);
    z-index: 99;
  }

  .nav.open {
    transform: translateX(0);
  }

  .nav__link {
    font-size: 1.1rem;
  }

  .burger {
    display: flex;
    z-index: 101;
  }

  .hero__title {
    font-size: clamp(1.8rem, 7vw, 2.8rem);
  }

  .hero__stats {
    gap: 32px;
  }

  .hero__actions {
    flex-direction: column;
    align-items: center;
    gap: 12px;
  }

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

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

  .about__visual {
    height: 300px;
    order: -1;
  }

  .contacts__inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .process__timeline {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .footer__inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer__bottom {
    flex-direction: column;
    gap: 8px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .stat__number {
    font-size: 2rem;
  }

  .hero__stats {
    flex-direction: column;
    gap: 16px;
  }

  .contacts__form {
    padding: 28px 20px;
  }

  .about__card {
    padding: 12px 16px;
    font-size: 0.8rem;
  }
}