/* ================================================================
   CSS RESET
   ================================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { line-height: 1.6; -webkit-font-smoothing: antialiased; }
img, svg { display: block; max-width: 100%; }
input, button, textarea, select { font: inherit; }
p, h1, h2, h3, h4 { overflow-wrap: break-word; }
ul { list-style: none; }
a { text-decoration: none; }
button { cursor: pointer; border: none; background: none; }

/* ================================================================
   CSS CUSTOM PROPERTIES
   ================================================================ */
:root {
  /* Colors */
  --dark-blue:   #0a0f2c;
  --mid-blue:    #0d1a4a;
  --card-bg:     #0f1e4a;
  --sky:         #38bdf8;
  --accent:      #7c3aed;
  --white:       #f0f4ff;
  --gray:        #8899bb;
  --gray-light:  rgba(136,153,187,0.15);

  /* Typography */
  --font-base: 'Segoe UI', system-ui, -apple-system, sans-serif;

  /* Spacing */
  --space-4:   4px;
  --space-8:   8px;
  --space-12:  12px;
  --space-16:  16px;
  --space-24:  24px;
  --space-32:  32px;
  --space-48:  48px;
  --space-64:  64px;
  --space-80:  80px;
  --space-96:  96px;

  /* Layout */
  --max-w:     1200px;
  --radius-sm: 6px;
  --radius:    10px;
  --radius-lg: 16px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.25);
  --shadow:    0 4px 24px rgba(0,0,0,0.35);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.45);

  /* Transitions */
  --transition: 0.25s ease;
  --transition-slow: 0.4s ease;
}

/* ================================================================
   BASE
   ================================================================ */
body {
  font-family: var(--font-base);
  background: var(--dark-blue);
  color: var(--white);
  font-size: 16px;
}

/* ================================================================
   LAYOUT — CONTAINER
   ================================================================ */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--space-24);
}

/* ================================================================
   SECTION BASE
   ================================================================ */
.section {
  padding-block: var(--space-96);
  background: var(--dark-blue);
}
.section--alt {
  background: var(--mid-blue);
}
.section__tag {
  display: block;
  color: var(--sky);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: var(--space-12);
}
.section__title {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: var(--space-12);
}
.section__desc {
  color: var(--gray);
  font-size: 1rem;
  line-height: 1.75;
  max-width: 580px;
  margin-bottom: var(--space-48);
}

/* ================================================================
   BUTTONS
   ================================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.95rem;
  transition: all var(--transition);
}
.btn--primary {
  background: var(--accent);
  color: #fff;
}
.btn--primary:hover {
  opacity: 0.85;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(124,58,237,0.4);
}
.btn--outline {
  border: 1.5px solid var(--sky);
  color: var(--sky);
}
.btn--outline:hover {
  background: rgba(56,189,248,0.08);
  transform: translateY(-2px);
}
.btn--full { width: 100%; }

/* ================================================================
   NAVIGATION
   ================================================================ */
.header {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(10,15,44,0.96);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(56,189,248,0.12);
  transition: box-shadow var(--transition);
}
.header.scrolled {
  box-shadow: var(--shadow);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-16);
  gap: var(--space-24);
}
.nav__logo {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--white);
  flex-shrink: 0;
}
.nav__logo span { color: var(--sky); }
.nav__links {
  display: none;
  gap: var(--space-32);
}
.nav__link {
  color: var(--gray);
  font-size: 0.9rem;
  transition: color var(--transition);
}
.nav__link:hover,
.nav__link:focus { color: var(--sky); }
.nav__cta { flex-shrink: 0; padding: 10px 22px; font-size: 0.85rem; }

/* Hamburger */
.nav__toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-8);
}
.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all var(--transition);
}
.nav__toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle.open span:nth-child(2) { opacity: 0; }
.nav__toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu open */
.nav__links.open {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  background: var(--mid-blue);
  border-top: 1px solid rgba(56,189,248,0.12);
  padding: var(--space-24);
  gap: var(--space-16);
}

/* ================================================================
   HERO
   ================================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 100px;
  padding-bottom: var(--space-80);
  background:
    radial-gradient(ellipse at 70% 40%, rgba(56,189,248,0.07) 0%, transparent 65%),
    radial-gradient(ellipse at 20% 80%, rgba(124,58,237,0.07) 0%, transparent 55%),
    var(--dark-blue);
}
.hero__badge {
  display: inline-block;
  background: rgba(56,189,248,0.1);
  border: 1px solid rgba(56,189,248,0.3);
  color: var(--sky);
  padding: 6px var(--space-16);
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: var(--space-24);
}
.hero__title {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 900;
  line-height: 1.12;
  margin-bottom: var(--space-24);
}
.hero__title span { color: var(--sky); }
.hero__title em { color: var(--accent); font-style: normal; }
.hero__desc {
  font-size: clamp(1rem, 2vw, 1.1rem);
  color: var(--gray);
  line-height: 1.75;
  max-width: 580px;
  margin-bottom: var(--space-32);
}
.hero__btns {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-16);
}

/* ================================================================
   STATS BAR
   ================================================================ */
.stats-bar {
  background: var(--card-bg);
  border-top: 1px solid rgba(56,189,248,0.1);
  border-bottom: 1px solid rgba(56,189,248,0.1);
  padding-block: var(--space-32);
}
.stats-bar__inner {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-24);
  text-align: center;
}
.stat-item__num {
  display: block;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 900;
  color: var(--sky);
  line-height: 1;
}
.stat-item__label {
  display: block;
  font-size: 0.78rem;
  color: var(--gray);
  margin-top: var(--space-4);
}

/* ================================================================
   SERVICES
   ================================================================ */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-24);
}
.service-card {
  background: var(--dark-blue);
  border: 1px solid rgba(56,189,248,0.12);
  border-radius: var(--radius);
  padding: var(--space-32) var(--space-24);
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.service-card:hover {
  border-color: var(--sky);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.service-card:hover .service-card__icon svg {
  transform: scale(1.08);
}
.service-card__icon {
  width: 56px;
  height: 56px;
  margin-bottom: var(--space-16);
}
.service-card__icon svg {
  width: 100%;
  height: 100%;
  transition: transform var(--transition);
}
.service-card__title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: var(--space-8);
}
.service-card__desc {
  color: var(--gray);
  font-size: 0.88rem;
  line-height: 1.65;
}

/* ================================================================
   HOW IT WORKS
   ================================================================ */
.steps-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-32);
}
.step-card {
  text-align: center;
  padding: var(--space-24);
  background: var(--card-bg);
  border-radius: var(--radius);
  border: 1px solid rgba(56,189,248,0.08);
  transition: border-color var(--transition), transform var(--transition);
}
.step-card:hover {
  border-color: rgba(56,189,248,0.3);
  transform: translateY(-3px);
}
.step-card__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-16);
}
.step-card__icon svg { width: 100%; height: 100%; }
.step-card__num {
  display: block;
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: 2px;
  margin-bottom: var(--space-8);
}
.step-card__title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: var(--space-8);
}
.step-card__desc {
  color: var(--gray);
  font-size: 0.86rem;
  line-height: 1.65;
}

/* ================================================================
   WHY US
   ================================================================ */
.why-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-16);
}
.why-card {
  background: var(--dark-blue);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: var(--space-24);
  transition: transform var(--transition), box-shadow var(--transition);
}
.why-card:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
}
.why-card__title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: var(--space-8);
}
.why-card__desc {
  color: var(--gray);
  font-size: 0.87rem;
  line-height: 1.65;
}

/* ================================================================
   TESTIMONIALS
   ================================================================ */
.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-24);
}
.testimonial-card {
  background: var(--card-bg);
  border: 1px solid rgba(56,189,248,0.12);
  border-radius: var(--radius);
  padding: var(--space-32) var(--space-24);
  transition: border-color var(--transition), transform var(--transition);
}
.testimonial-card:hover {
  border-color: rgba(56,189,248,0.3);
  transform: translateY(-3px);
}
.testimonial-card__quote {
  color: var(--white);
  font-size: 0.95rem;
  line-height: 1.75;
  margin-bottom: var(--space-24);
  font-style: italic;
}
.testimonial-card__footer {
  display: flex;
  align-items: center;
  gap: var(--space-12);
}
.testimonial-card__avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1rem;
  flex-shrink: 0;
}
.testimonial-card__name {
  display: block;
  font-weight: 700;
  font-size: 0.9rem;
  font-style: normal;
}
.testimonial-card__role {
  display: block;
  color: var(--gray);
  font-size: 0.78rem;
  margin-top: 2px;
}

/* ================================================================
   ACCORDION / FAQ
   ================================================================ */
.accordion {
  max-width: 720px;
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
}
.accordion-item {
  background: var(--card-bg);
  border: 1px solid rgba(56,189,248,0.12);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition);
}
.accordion-item.open {
  border-color: rgba(56,189,248,0.3);
}
.accordion-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: var(--space-16) var(--space-24);
  color: var(--white);
  font-weight: 600;
  font-size: 0.95rem;
  text-align: left;
  gap: var(--space-16);
  transition: background var(--transition);
}
.accordion-header:hover { background: rgba(56,189,248,0.05); }
.accordion-header:focus-visible {
  outline: 2px solid var(--sky);
  outline-offset: -2px;
}
.accordion-icon {
  width: 20px;
  height: 20px;
  color: var(--sky);
  flex-shrink: 0;
  transition: transform var(--transition);
}
.accordion-item.open .accordion-icon {
  transform: rotate(180deg);
}
.accordion-panel {
  display: none;
  padding: 0 var(--space-24) var(--space-16);
  color: var(--gray);
  font-size: 0.9rem;
  line-height: 1.7;
}
.accordion-item.open .accordion-panel {
  display: block;
}

/* ================================================================
   CONTACT FORM
   ================================================================ */
.contact-form-wrap {
  max-width: 680px;
}
.form-alert {
  padding: var(--space-16) var(--space-24);
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: var(--space-24);
}
.form-alert--success {
  background: rgba(56,189,248,0.1);
  border: 1px solid var(--sky);
  color: var(--sky);
}
.form-alert--error {
  background: rgba(230,57,70,0.1);
  border: 1px solid #e63946;
  color: #e63946;
}
.contact-form {
  background: var(--card-bg);
  border: 1px solid rgba(56,189,248,0.15);
  border-radius: var(--radius-lg);
  padding: var(--space-48) var(--space-32);
  display: flex;
  flex-direction: column;
  gap: var(--space-16);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-16);
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}
.form-group__label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--sky);
  letter-spacing: 0.4px;
}
.form-group__input {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(56,189,248,0.2);
  border-radius: var(--radius-sm);
  color: var(--white);
  padding: 12px var(--space-16);
  font-size: 0.9rem;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}
.form-group__input:focus {
  border-color: var(--sky);
  box-shadow: 0 0 0 3px rgba(56,189,248,0.12);
}
.form-group__input::placeholder { color: var(--gray); }
.form-group__select option { background: var(--mid-blue); }
.form-group__textarea {
  resize: vertical;
  min-height: 120px;
}

/* ================================================================
   FOOTER
   ================================================================ */
.footer {
  background: var(--mid-blue);
  border-top: 1px solid rgba(56,189,248,0.1);
  padding-block: var(--space-48);
  text-align: center;
}
.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-12);
}
.footer__logo {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--white);
}
.footer__logo span { color: var(--sky); }
.footer__email a {
  color: var(--sky);
  font-size: 0.9rem;
  transition: opacity var(--transition);
}
.footer__email a:hover { opacity: 0.75; }
.footer__copy {
  color: var(--gray);
  font-size: 0.8rem;
}

/* ================================================================
   SVG ANIMATIONS
   ================================================================ */
@keyframes apt-spin    { from { transform: rotate(0deg); }   to { transform: rotate(360deg); } }
@keyframes apt-float   { 0%,100% { transform: translateY(0); }  50% { transform: translateY(-5px); } }
@keyframes apt-pulse   { 0%,100% { opacity: 1; }  50% { opacity: 0.3; } }
@keyframes apt-blink   { 0%,100% { opacity: 1; }  50% { opacity: 0.15; } }
@keyframes apt-slide   { 0%,100% { transform: translateX(0); } 50% { transform: translateX(5px); } }

.anim-spin  { transform-origin: 28px 28px; animation: apt-spin  6s linear infinite; }
.anim-float { animation: apt-float 3s ease-in-out infinite; }
.anim-pulse { animation: apt-pulse 2.5s ease-in-out infinite; }
.anim-blink { animation: apt-blink 1.5s ease-in-out infinite; }
.anim-slide { animation: apt-slide 2s ease-in-out infinite; }

/* ================================================================
   MEDIA QUERIES — TABLET (768px+)
   ================================================================ */
@media (min-width: 768px) {
  .nav__links { display: flex; }
  .nav__toggle { display: none; }

  .stats-bar__inner { grid-template-columns: repeat(4, 1fr); }

  .services-grid      { grid-template-columns: repeat(2, 1fr); }
  .steps-grid         { grid-template-columns: repeat(2, 1fr); }
  .why-grid           { grid-template-columns: repeat(2, 1fr); }
  .testimonials-grid  { grid-template-columns: repeat(2, 1fr); }

  .form-row { grid-template-columns: repeat(2, 1fr); }
  .contact-form { padding: var(--space-48); }
}

/* ================================================================
   MEDIA QUERIES — DESKTOP (1024px+)
   ================================================================ */
@media (min-width: 1024px) {
  .services-grid      { grid-template-columns: repeat(3, 1fr); }
  .steps-grid         { grid-template-columns: repeat(4, 1fr); }
  .why-grid           { grid-template-columns: repeat(4, 1fr); }
  .testimonials-grid  { grid-template-columns: repeat(3, 1fr); }
}