:root {
  --ditg-dark: #050816;
  --ditg-primary: #2563eb;
  --ditg-accent: #38bdf8;
  --ditg-light: #f9fafb;
  --ditg-gray: #6b7280;
  --ditg-card: #020617;
}

/* GLOBAL */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background-color: var(--ditg-dark);
  color: #e5e7eb;
}

a {
  text-decoration: none;
}

/* NAVBAR */

.ditg-navbar {
  background: radial-gradient(circle at 0% 0%, rgba(56, 189, 248, 0.12), transparent 50%),
              rgba(5, 8, 22, 0.94);
  backdrop-filter: blur(16px);
}

.navbar-brand .logo-img {
  width: 60px;
  height: 60px;
  object-fit: cover;
  margin-right: 10px;
  box-shadow: 0 10px 25px rgba(15, 23, 42, 0.9);
  /* border: 1px solid rgba(148, 163, 184, 0.4); */
}


.navbar-brand span.logo-text-main {
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 26px;
  color:#fff;
}

.navbar-brand span.logo-text-sub {
  display: block;
  font-size: 0.7rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: #0098fe;
  margin-top: 2px;
}

.nav-link {
  color: #e5e7eb !important;
  font-size: 0.9rem;
  position: relative;
  padding-inline: 12px;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--ditg-accent), #a855f7);
  transform: translateX(-50%);
  transition: width 0.2s ease;
}

.nav-link:hover {
  color: var(--ditg-accent) !important;
}

.nav-link:hover::after {
  width: 70%;
}

.ditg-btn-outline {
  border-radius: 999px;
  border-width: 1px;
  padding-inline: 18px;
  font-size: 0.86rem;
  transition: all 0.18s ease;
}

.ditg-btn-outline:hover {
  border-color: var(--ditg-accent);
  color: var(--ditg-accent);
  background-color: rgba(56, 189, 248, 0.06);
}

/* HERO */

.hero {
  position: relative;
  overflow: hidden;
  padding: 120px 0 80px;
  background: radial-gradient(circle at top left, #1d4ed8 0, transparent 50%),
              radial-gradient(circle at bottom right, #0ea5e9 0, transparent 55%),
              #020617;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 10% 20%, rgba(56, 189, 248, 0.18) 0, transparent 55%),
    radial-gradient(circle at 80% 80%, rgba(37, 99, 235, 0.26) 0, transparent 55%);
  opacity: 0.55;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-label {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.4);
  background: rgba(15, 23, 42, 0.72);
  font-size: 0.75rem;
  color: #e5e7eb;
  gap: 6px;
  margin-bottom: 14px;
}

.hero-label i {
  font-size: 0.9rem;
  color: var(--ditg-accent);
}

.hero-title {
  font-size: clamp(2.2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 16px;
}

.hero-title .gradient {
  background: linear-gradient(90deg, #38bdf8, #a855f7);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-subtitle {
  font-size: 0.98rem;
  color: var(--ditg-gray);
  max-width: 480px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
  margin-bottom: 26px;
}

.hero-badge {
  font-size: 0.8rem;
  border-radius: 999px;
  padding: 6px 12px;
  border: 1px solid rgba(148, 163, 184, 0.5);
  color: #e5e7eb;
  background: rgba(15, 23, 42, 0.72);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
}

.btn-ditg-primary {
  border-radius: 999px;
  padding: 10px 20px;
  border: none;
  font-weight: 600;
  font-size: 0.92rem;
  background: linear-gradient(135deg, #2563eb, #38bdf8);
  color: #f9fafb;
  box-shadow: 0 16px 40px rgba(37, 99, 235, 0.6),
              0 0 0 1px rgba(15, 23, 42, 0.9);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: transform 0.18s ease, box-shadow 0.18s ease, opacity 0.18s ease;
}

.btn-ditg-primary:hover {
  opacity: 0.94;
  transform: translateY(-1px);
  box-shadow: 0 24px 60px rgba(37, 99, 235, 0.7),
              0 0 0 1px rgba(15, 23, 42, 0.9);
  color: #f9fafb;
}

.btn-ghost {
  border-radius: 999px;
  padding: 10px 20px;
  border: 1px solid rgba(148, 163, 184, 0.6);
  font-weight: 500;
  font-size: 0.9rem;
  background: rgba(15, 23, 42, 0.8);
  color: #e5e7eb;
  transition: all 0.18s ease;
}

.btn-ghost:hover {
  border-color: var(--ditg-accent);
  color: var(--ditg-accent);
  background: rgba(15, 23, 42, 1);
}

.hero-note {
  font-size: 0.8rem;
  color: var(--ditg-gray);
}

.hero-scroll-hint {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 22px;
  font-size: 0.8rem;
  color: var(--ditg-gray);
}

.hero-scroll-hint i {
  font-size: 1rem;
  color: var(--ditg-accent);
}

/* HERO PANEL */

.hero-panel {
  position: relative;
  z-index: 1;
  padding: 20px;
  border-radius: 24px;
  background: radial-gradient(circle at top, rgba(56, 189, 248, 0.18), transparent 55%),
              rgba(15, 23, 42, 0.96);
  border: 1px solid rgba(148, 163, 184, 0.42);
  box-shadow:
    0 25px 80px rgba(15, 23, 42, 0.95),
    0 0 0 1px rgba(15, 23, 42, 0.9);
}

.hero-panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.hero-panel-title {
  font-size: 0.9rem;
  font-weight: 600;
}

.hero-panel-badge {
  font-size: 0.75rem;
  padding: 4px 8px;
  border-radius: 999px;
  background: rgba(56, 189, 248, 0.14);
  color: #e0f2fe;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 16px;
}

.hero-metric {
  padding: 10px;
  border-radius: 14px;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(51, 65, 85, 0.9);
  box-shadow:
    0 10px 30px rgba(15, 23, 42, 0.85);
}

.hero-metric-label {
  font-size: 0.7rem;
  color: var(--ditg-gray);
  margin-bottom: 4px;
}

.hero-metric-value {
  font-size: 0.9rem;
  font-weight: 600;
}

.hero-metric-tag {
  font-size: 0.72rem;
  color: #22c55e;
}

/* SECTIONS */

.section {
  padding: 80px 0;
  scroll-margin-top: 80px;
}

.section-title {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.section-subtitle {
  font-size: 0.95rem;
  color: var(--ditg-gray);
  max-width: 560px;
  margin: 0 auto 10px;
}

.section-label {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.5);
  font-size: 0.75rem;
  color: var(--ditg-gray);
  gap: 6px;
  margin-bottom: 12px;
}

.section-label i {
  font-size: 0.85rem;
  color: var(--ditg-accent);
}

/* SERVICE CARDS */

.service-card {
  background: var(--ditg-card);
  border-radius: 20px;
  padding: 22px;
  border: 1px solid rgba(51, 65, 85, 0.9);
  height: 100%;
  position: relative;
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.service-card::before {
  content: "";
  position: absolute;
  inset: -40%;
  background: conic-gradient(from 180deg at 50% 50%, rgba(56, 189, 248, 0.75), transparent, transparent, rgba(37, 99, 235, 0.7), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.service-card:hover::before {
  opacity: 0.22;
}

.service-card:hover {
  transform: translateY(-6px) translateZ(0);
  border-color: rgba(56, 189, 248, 0.95);
  box-shadow:
    0 24px 70px rgba(15, 23, 42, 0.98),
    0 0 0 1px rgba(15, 23, 42, 1);
  background: radial-gradient(circle at top, rgba(56, 189, 248, 0.18), transparent 60%),
              #020617;
}

.service-icon {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: radial-gradient(circle at 30% 0, #38bdf8, #1d4ed8);
  margin-bottom: 14px;
  color: #f9fafb;
  font-size: 1.3rem;
  box-shadow: 0 12px 30px rgba(37, 99, 235, 0.7);
}

.service-title {
  font-size: 1.02rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.service-text {
  font-size: 0.9rem;
  color: var(--ditg-gray);
  margin-bottom: 10px;
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 10px;
}

.service-tag {
  font-size: 0.75rem;
  border-radius: 999px;
  padding: 4px 9px;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(51, 65, 85, 0.9);
  color: #e5e7eb;
}

.service-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--ditg-gray);
  margin-top: 6px;
}

/* PRICING CARDS */

.pricing-card {
  background: var(--ditg-card);
  border-radius: 22px;
  padding: 22px;
  border: 1px solid rgba(51, 65, 85, 0.9);
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.pricing-card.popular {
  border-color: #38bdf8;
  box-shadow: 0 28px 90px rgba(56, 189, 248, 0.38);
  background: radial-gradient(circle at top, rgba(56, 189, 248, 0.18), transparent 60%),
              #020617;
}

.pricing-card:hover {
  transform: translateY(-6px);
  border-color: rgba(56, 189, 248, 0.95);
  box-shadow: 0 24px 80px rgba(15, 23, 42, 0.98);
}

.pricing-badge {
  position: absolute;
  top: 16px;
  right: 18px;
  font-size: 0.7rem;
  padding: 4px 9px;
  border-radius: 999px;
  background: rgba(56, 189, 248, 0.18);
  color: #e0f2fe;
  border: 1px solid rgba(56, 189, 248, 0.8);
}

.pricing-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.pricing-sub {
  font-size: 0.8rem;
  color: var(--ditg-gray);
  margin-bottom: 8px;
}

.pricing-price {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 2px;
}

.pricing-note {
  font-size: 0.76rem;
  color: var(--ditg-gray);
  margin-bottom: 12px;
}

.pricing-list {
  list-style: none;
  padding-left: 0;
  margin-bottom: 16px;
  font-size: 0.85rem;
}

.pricing-list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 6px;
  color: #d1d5db;
}

.pricing-list li i {
  font-size: 0.9rem;
  color: #22c55e;
  margin-top: 2px;
}

/* PROCESS / STEPS */

.steps-list {
  list-style: none;
  padding-left: 0;
  margin-bottom: 0;
}

.step-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 18px;
}

.step-number {
  width: 30px;
  height: 30px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 30% 0, #38bdf8, #1d4ed8);
  color: #f9fafb;
  font-size: 0.9rem;
  font-weight: 600;
  flex-shrink: 0;
  box-shadow: 0 10px 25px rgba(37, 99, 235, 0.8);
}

.step-body-title {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 3px;
}

.step-body-text {
  font-size: 0.86rem;
  color: var(--ditg-gray);
}

/* CASE CARDS */

.case-card {
  background: var(--ditg-card);
  border-radius: 18px;
  padding: 18px;
  border: 1px solid rgba(51, 65, 85, 0.9);
  height: 100%;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.case-card:hover {
  transform: translateY(-4px);
  border-color: rgba(56, 189, 248, 0.9);
  box-shadow: 0 22px 60px rgba(15, 23, 42, 0.96);
}

.case-name {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.case-type {
  font-size: 0.8rem;
  color: var(--ditg-gray);
  margin-bottom: 8px;
}

.case-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.8rem;
  margin-bottom: 8px;
}

.case-metric-tag {
  border-radius: 999px;
  padding: 3px 8px;
  border: 1px solid rgba(51, 65, 85, 0.9);
  color: #e5e7eb;
}

.case-desc {
  font-size: 0.85rem;
  color: var(--ditg-gray);
}

/* CONTACT */

.contact-card {
  background: var(--ditg-card);
  border-radius: 22px;
  padding: 22px;
  border: 1px solid rgba(51, 65, 85, 0.9);
  box-shadow: 0 25px 80px rgba(15, 23, 42, 0.96);
}

.form-label {
  font-size: 0.8rem;
  color: #e5e7eb;
}

.form-control,
.form-select {
  background: rgba(15, 23, 42, 0.9);
  border-color: rgba(51, 65, 85, 0.9);
  color: #e5e7eb;
  font-size: 0.86rem;
}

.form-control:focus,
.form-select:focus {
  background: rgba(15, 23, 42, 1);
  border-color: var(--ditg-accent);
  box-shadow: 0 0 0 1px rgba(56, 189, 248, 0.4);
  color: #f9fafb;
}

.form-text {
  font-size: 0.75rem;
  color: var(--ditg-gray);
}

.is-invalid {
  border-color: #f97316 !important;
  box-shadow: 0 0 0 1px rgba(248, 113, 113, 0.6);
}

/* FOOTER */

footer {
  border-top: 1px solid rgba(31, 41, 55, 1);
  padding: 20px 0;
  background: #020617;
  font-size: 0.8rem;
  color: var(--ditg-gray);
}

.footer-links a {
  color: var(--ditg-gray);
  margin-right: 14px;
}

.footer-links a:hover {
  color: var(--ditg-accent);
}

/* REVEAL ANIMATION */

.reveal {
  opacity: 0;
  transform: translateY(26px) scale(0.98);
  transition:
    opacity 0.6s ease-out,
    transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.reveal-delay-1 {
  transition-delay: 0.08s;
}

.reveal-delay-2 {
  transition-delay: 0.16s;
}

.reveal-delay-3 {
  transition-delay: 0.24s;
}

.reveal-delay-4 {
  transition-delay: 0.32s;
}

.reveal-delay-5 {
  transition-delay: 0.4s;
}

.reveal-delay-6 {
  transition-delay: 0.48s;
}

/* RESPONSIVE */

@media (max-width: 767.98px) {
  .hero {
    padding-top: 100px;
  }
  .hero-title {
    font-size: 2.1rem;
  }
  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }
  .hero-panel {
    margin-top: 26px;
  }
}


/* ===============================
   FIXED CALL BUTTON
   =============================== */

.ditg-call-btn {
  position: fixed;
  right: 18px;
  bottom: 24px;
  z-index: 999;
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  cursor: pointer;

  opacity: 0;
  visibility: hidden;
  transform: translateY(18px) scale(0.9);
  transition:
    opacity 0.28s ease-out,
    transform 0.28s ease-out,
    visibility 0.28s ease-out;
}

/* Видимость после скролла */
.ditg-call-btn-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

/* Обёртка-круг: всё центрируется относительно неё */
.ditg-call-btn-circle {
  position: relative;
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Внутренняя кнопка */
.ditg-call-btn-inner {
  width: 54px;
  height: 54px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 0, var(--ditg-accent), var(--ditg-primary));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #f9fafb;
  box-shadow:
    0 18px 40px rgba(37, 99, 235, 0.95),
    0 0 0 1px rgba(15, 23, 42, 1);
  position: relative;
  z-index: 2;
  animation: ditg-call-inner-pulse 2s infinite ease-out;
}

.ditg-call-btn-inner i {
  font-size: 1.4rem;
}

/* Пульсирующее кольцо — строго по центру круга */
.ditg-call-btn-ring {
  position: absolute;
  inset: 0;
  border-radius: 999px;
  border: 2px solid rgba(56, 189, 248, 0.55);
  box-shadow: 0 0 25px rgba(56, 189, 248, 0.6);
  pointer-events: none;
  animation: ditg-call-ring-pulse 2s infinite ease-out;
}

/* Подпись справа от кнопки */
.ditg-call-btn-label {
  font-size: 0.8rem;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.96);
  border: 1px solid rgba(148, 163, 184, 0.4);
  color: #e5e7eb;
  white-space: nowrap;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.96);
}

/* Hover */
.ditg-call-btn:hover .ditg-call-btn-inner {
  transform: scale(1.04);
  box-shadow:
    0 22px 55px rgba(37, 99, 235, 1),
    0 0 0 1px rgba(15, 23, 42, 1);
}

.ditg-call-btn:hover .ditg-call-btn-label {
  border-color: var(--ditg-accent);
  color: var(--ditg-accent);
}

/* Анимация внутреннего круга */
@keyframes ditg-call-inner-pulse {
  0% {
    transform: scale(1);
    box-shadow:
      0 18px 40px rgba(37, 99, 235, 0.95),
      0 0 0 1px rgba(15, 23, 42, 1);
  }
  50% {
    transform: scale(1.06);
    box-shadow:
      0 24px 60px rgba(56, 189, 248, 0.9),
      0 0 0 1px rgba(15, 23, 42, 1);
  }
  100% {
    transform: scale(1);
    box-shadow:
      0 18px 40px rgba(37, 99, 235, 0.95),
      0 0 0 1px rgba(15, 23, 42, 1);
  }
}

/* Анимация кольца */
@keyframes ditg-call-ring-pulse {
  0% {
    opacity: 0.7;
    transform: scale(0.85);
  }
  70% {
    opacity: 0;
    transform: scale(1.25);
  }
  100% {
    opacity: 0;
    transform: scale(1.25);
  }
}

@media (max-width: 575.98px) {
  .ditg-call-btn {
    right: 14px;
    bottom: 98px;
    gap: 0;
  }

  .ditg-call-btn-circle {
    width: 56px;
    height: 56px;
  }

  .ditg-call-btn-inner {
    width: 50px;
    height: 50px;
  }

  .ditg-call-btn-ring {
    inset: -4px;
  }

  .ditg-call-btn-label {
    display: none;
  }
}