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

:root {
  --blue:       #2563eb;
  --blue-light: #3b82f6;
  --blue-dark:  #1d4ed8;
  --indigo:     #4f46e5;
  --accent:     #06b6d4;
  --warning:    #f59e0b;
  --dark:       #0f172a;
  --dark-2:     #1e293b;
  --dark-3:     #334155;
  --mid:        #64748b;
  --light:      #f1f5f9;
  --white:      #ffffff;
  --radius:     12px;
  --radius-lg:  20px;
  --shadow:     0 4px 24px rgba(0,0,0,.08);
  --shadow-lg:  0 8px 48px rgba(0,0,0,.14);
  --transition: 0.25s ease;
  --font-body:  'Inter', sans-serif;
  --font-head:  'Space Grotesk', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  color: var(--dark);
  background: var(--white);
  overflow-x: hidden;
}

h1,h2,h3,h4,h5 {
  font-family: var(--font-head);
  line-height: 1.2;
}

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

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

/* ===========================
   UTILITIES
=========================== */
.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

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

/* ===========================
   BUTTONS
=========================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 8px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background: var(--blue);
  color: var(--white);
  border-color: var(--blue);
}
.btn--primary:hover {
  background: var(--blue-dark);
  border-color: var(--blue-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37,99,235,.35);
}

.btn--ghost {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,.4);
}
.btn--ghost:hover {
  background: rgba(255,255,255,.12);
  border-color: rgba(255,255,255,.7);
}

.btn--warning {
  background: var(--warning);
  color: var(--dark);
  border-color: var(--warning);
  font-weight: 700;
}
.btn--warning:hover {
  background: #d97706;
  border-color: #d97706;
}

.btn--lg { padding: 16px 36px; font-size: 16px; border-radius: 10px; }
.btn--full { width: 100%; }

/* ===========================
   HEADER
=========================== */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0;
  background: rgba(15,23,42,.0);
  backdrop-filter: blur(0px);
  transition: background var(--transition), backdrop-filter var(--transition), box-shadow var(--transition);
}

.header.scrolled {
  background: rgba(15,23,42,.92);
  backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 rgba(255,255,255,.08);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 20px;
  color: var(--white);
}

.logo__icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}

.nav { display: flex; align-items: center; gap: 8px; }

.nav__link {
  padding: 7px 14px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  color: rgba(255,255,255,.8);
  transition: color var(--transition), background var(--transition);
}
.nav__link:hover { color: var(--white); background: rgba(255,255,255,.08); }

.nav__link--cta {
  background: var(--blue);
  color: var(--white) !important;
  padding: 8px 18px;
  border-radius: 7px;
  font-weight: 600;
}
.nav__link--cta:hover { background: var(--blue-dark) !important; }

.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(--white);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ===========================
   HERO
=========================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--dark);
  overflow: hidden;
  padding-top: 68px;
}

.hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero__blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: .35;
}
.hero__blob--1 {
  width: 600px; height: 600px;
  top: -150px; right: -100px;
  background: radial-gradient(circle, var(--blue), transparent 70%);
}
.hero__blob--2 {
  width: 400px; height: 400px;
  bottom: 0; left: -80px;
  background: radial-gradient(circle, var(--accent), transparent 70%);
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black, transparent);
}

.hero__inner {
  position: relative;
  z-index: 1;
  padding: 80px 24px 100px;
  text-align: center;
}

.hero__badge {
  display: inline-block;
  background: rgba(37,99,235,.25);
  border: 1px solid rgba(37,99,235,.5);
  color: #93c5fd;
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 28px;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.hero__title {
  font-size: clamp(38px, 6vw, 72px);
  font-weight: 800;
  color: var(--white);
  margin-bottom: 20px;
  letter-spacing: -.02em;
}

.hero__subtitle {
  max-width: 600px;
  margin: 0 auto 36px;
  color: rgba(255,255,255,.65);
  font-size: 18px;
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 64px;
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  max-width: 760px;
  margin: 0 auto;
  background: rgba(255,255,255,.08);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.1);
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 24px 16px;
  background: rgba(15,23,42,.6);
}

.stat__num {
  font-family: var(--font-head);
  font-size: 32px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--white), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat__label {
  font-size: 12px;
  color: rgba(255,255,255,.5);
  margin-top: 4px;
  text-align: center;
}

/* ===========================
   SECTIONS
=========================== */
.section { padding: 96px 0; }
.section--dark {
  background: var(--dark);
  color: var(--white);
}
.section--alt { background: var(--light); }

.section__header {
  text-align: center;
  margin-bottom: 56px;
}
.section__header--light .section__title { color: var(--white); }

.section__tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--blue);
  background: rgba(37,99,235,.1);
  padding: 5px 14px;
  border-radius: 100px;
  margin-bottom: 12px;
}
.section__tag--accent {
  color: var(--accent);
  background: rgba(6,182,212,.15);
}

.section__title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  letter-spacing: -.02em;
  margin-bottom: 16px;
}

.section__desc {
  max-width: 560px;
  margin: 0 auto;
  color: var(--mid);
  font-size: 17px;
}
.section__desc--light { color: rgba(255,255,255,.6); }

/* ===========================
   SERVICE CARDS
=========================== */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.card {
  background: var(--white);
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-lg);
  padding: 32px 28px;
}

.card--hover {
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.card--hover:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--blue-light);
}

.card__icon {
  font-size: 32px;
  margin-bottom: 18px;
}

.card__title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
}

.card__text {
  font-size: 15px;
  color: var(--mid);
  line-height: 1.7;
}

/* ===========================
   EOL BANNER
=========================== */
.eol-banner {
  display: flex;
  align-items: center;
  gap: 20px;
  background: linear-gradient(135deg, rgba(245,158,11,.15), rgba(239,68,68,.1));
  border: 1px solid rgba(245,158,11,.4);
  border-radius: var(--radius);
  padding: 20px 28px;
  margin-bottom: 56px;
}

.eol-banner__icon { font-size: 32px; flex-shrink: 0; }

.eol-banner__body {
  flex: 1;
  color: rgba(255,255,255,.85);
  font-size: 15px;
}
.eol-banner__body strong { color: #fbbf24; }

/* ===========================
   MIGRATION — WHY
=========================== */
.migration-why {
  margin-bottom: 72px;
}

.migration-why__title {
  font-size: 26px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 32px;
  text-align: center;
}

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

.migration-why__item {
  display: flex;
  gap: 16px;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius);
  padding: 24px;
  transition: background var(--transition);
}
.migration-why__item:hover { background: rgba(255,255,255,.09); }

.migration-why__icon { font-size: 26px; flex-shrink: 0; }

.migration-why__item strong {
  display: block;
  font-size: 16px;
  color: var(--white);
  margin-bottom: 6px;
}

.migration-why__item p {
  font-size: 14px;
  color: rgba(255,255,255,.55);
  line-height: 1.6;
}

/* ===========================
   MIGRATION PATH
=========================== */
.migration-path {
  margin-bottom: 72px;
}

.migration-path__title {
  font-size: 26px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 16px;
  text-align: center;
}

.migration-path__intro {
  max-width: 720px;
  margin: 0 auto 40px;
  text-align: center;
  color: rgba(255,255,255,.6);
  font-size: 16px;
  line-height: 1.7;
}

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

.path-step {
  display: flex;
  gap: 24px;
  position: relative;
  padding-bottom: 32px;
}

.path-step:not(:last-child)::before {
  content: '';
  position: absolute;
  left: 24px;
  top: 52px;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--blue), rgba(37,99,235,.1));
}

.path-step__num {
  width: 50px; height: 50px;
  flex-shrink: 0;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--accent));
  color: var(--white);
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 0 6px rgba(37,99,235,.2);
}

.path-step__body {
  padding-top: 10px;
}

.path-step__body h4 {
  font-size: 17px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 6px;
}

.path-step__body p {
  font-size: 15px;
  color: rgba(255,255,255,.55);
  line-height: 1.7;
}

/* ===========================
   COMPARISON TABLE
=========================== */
.comparison {
  margin-bottom: 64px;
}

.comparison__title {
  font-size: 26px;
  font-weight: 700;
  color: var(--white);
  text-align: center;
  margin-bottom: 32px;
}

.table-wrap { overflow-x: auto; }

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
}

.comparison-table th,
.comparison-table td {
  padding: 14px 20px;
  text-align: left;
  border-bottom: 1px solid rgba(255,255,255,.07);
}

.comparison-table thead th {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: .05em;
  text-transform: uppercase;
  color: rgba(255,255,255,.5);
}

.comparison-table tbody tr:hover td { background: rgba(255,255,255,.04); }

.comparison-table .old { color: #f87171; }
.comparison-table .new { color: #4ade80; }
.comparison-table thead .old { color: #f87171; }
.comparison-table thead .new { color: #4ade80; }

.comparison-table td:first-child { color: rgba(255,255,255,.8); font-weight: 500; }

/* ===========================
   MIGRATION CTA
=========================== */
.migration-cta {
  text-align: center;
  background: linear-gradient(135deg, rgba(37,99,235,.2), rgba(6,182,212,.15));
  border: 1px solid rgba(37,99,235,.3);
  border-radius: var(--radius-lg);
  padding: 56px 40px;
}

.migration-cta h3 {
  font-size: 30px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
}

.migration-cta p {
  color: rgba(255,255,255,.6);
  font-size: 17px;
  max-width: 520px;
  margin: 0 auto 28px;
}

/* ===========================
   WHY US
=========================== */
.why-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.why-item {
  background: var(--white);
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.why-item:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.why-item__num {
  font-family: var(--font-head);
  font-size: 48px;
  font-weight: 800;
  color: rgba(37,99,235,.12);
  line-height: 1;
  margin-bottom: 12px;
}

.why-item h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 10px;
}

.why-item p {
  color: var(--mid);
  font-size: 15px;
  line-height: 1.7;
}

/* ===========================
   PROCESS TIMELINE
=========================== */
.process-timeline {
  max-width: 720px;
  margin: 0 auto;
  position: relative;
  padding-left: 40px;
}

.process-timeline::before {
  content: '';
  position: absolute;
  left: 11px;
  top: 12px; bottom: 12px;
  width: 2px;
  background: linear-gradient(to bottom, var(--blue), var(--accent));
}

.process-step {
  display: flex;
  gap: 24px;
  margin-bottom: 40px;
  position: relative;
}

.process-step__dot {
  position: absolute;
  left: -40px;
  top: 14px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 0 4px rgba(37,99,235,.2);
}

.process-step__content {}

.process-step__label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 4px;
  display: block;
}

.process-step__content h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 6px;
}

.process-step__content p {
  font-size: 15px;
  color: var(--mid);
}

/* ===========================
   CONTACT
=========================== */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 48px;
  align-items: start;
}

.contact-form {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 7px;
  margin-bottom: 20px;
}

.form-group label {
  font-size: 14px;
  font-weight: 500;
  color: rgba(255,255,255,.7);
}

.form-group input,
.form-group select,
.form-group textarea {
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 8px;
  padding: 12px 16px;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--white);
  outline: none;
  transition: border-color var(--transition), background var(--transition);
  appearance: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(255,255,255,.25);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--blue-light);
  background: rgba(255,255,255,.1);
}

.form-group select option { background: var(--dark-2); color: var(--white); }

.form-success {
  display: none;
  margin-top: 16px;
  background: rgba(74,222,128,.15);
  border: 1px solid rgba(74,222,128,.4);
  border-radius: 8px;
  padding: 14px 18px;
  color: #4ade80;
  font-size: 15px;
  text-align: center;
}
.form-success.visible { display: block; }

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

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

.contact-info__icon {
  font-size: 24px;
  flex-shrink: 0;
  margin-top: 2px;
}

.contact-info__item strong {
  display: block;
  color: var(--white);
  font-size: 15px;
  margin-bottom: 2px;
}

.contact-info__item p {
  font-size: 14px;
  color: rgba(255,255,255,.5);
}

.contact-info__badge {
  background: linear-gradient(135deg, rgba(37,99,235,.2), rgba(6,182,212,.15));
  border: 1px solid rgba(37,99,235,.35);
  border-radius: var(--radius);
  padding: 24px;
}

.contact-info__badge strong {
  display: block;
  color: var(--white);
  font-size: 16px;
  margin-bottom: 8px;
}

.contact-info__badge p {
  font-size: 14px;
  color: rgba(255,255,255,.55);
  margin-bottom: 14px;
  line-height: 1.6;
}

.badge-tag {
  display: inline-block;
  background: rgba(6,182,212,.2);
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 100px;
}

/* ===========================
   FOOTER
=========================== */
.footer {
  background: #060d1a;
  color: rgba(255,255,255,.5);
  padding: 64px 0 0;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}

.footer__brand p {
  margin-top: 14px;
  font-size: 14px;
  line-height: 1.7;
  max-width: 260px;
}

.footer__brand .logo { color: var(--white); }

.footer__nav h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 16px;
  letter-spacing: .05em;
  text-transform: uppercase;
}

.footer__nav a {
  display: block;
  font-size: 14px;
  color: rgba(255,255,255,.45);
  margin-bottom: 10px;
  transition: color var(--transition);
}
.footer__nav a:hover { color: var(--white); }

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,.07);
  padding: 20px 0;
}

.footer__bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: rgba(255,255,255,.3);
}

/* ===========================
   RESPONSIVE
=========================== */
@media (max-width: 1024px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .migration-why__grid { grid-template-columns: repeat(2, 1fr); }
  .contact-layout { grid-template-columns: 1fr; }
  .contact-info { display: grid; grid-template-columns: repeat(2, 1fr); }
  .contact-info__badge { grid-column: 1 / -1; }
  .footer__inner { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 768px) {
  .nav { display: none; flex-direction: column; gap: 4px; }
  .nav.open {
    display: flex;
    position: fixed;
    top: 68px; left: 0; right: 0;
    background: rgba(15,23,42,.97);
    backdrop-filter: blur(20px);
    padding: 20px;
    border-bottom: 1px solid rgba(255,255,255,.08);
  }
  .nav__link { padding: 12px 16px; border-radius: 8px; font-size: 16px; }
  .burger { display: flex; }

  .hero__stats { grid-template-columns: repeat(2, 1fr); }
  .cards { grid-template-columns: 1fr; }
  .migration-why__grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .eol-banner { flex-direction: column; text-align: center; }
  .contact-info { grid-template-columns: 1fr; }
  .footer__inner { grid-template-columns: 1fr; }
  .footer__bottom .container { flex-direction: column; gap: 6px; text-align: center; }
}

@media (max-width: 480px) {
  .section { padding: 64px 0; }
  .hero__inner { padding: 60px 24px 80px; }
  .hero__stats { grid-template-columns: repeat(2, 1fr); }
  .contact-form { padding: 24px; }
}