/* ===== Variables ===== */
:root {
  --navy-950: #060b18;
  --navy-900: #0a1128;
  --navy-800: #101c3a;
  --navy-700: #16294f;
  --blue-500: #2563eb;
  --blue-400: #3b82f6;
  --cyan-400: #22d3ee;
  --cyan-300: #67e8f9;
  --white: #f4f7fb;
  --gray-300: #b8c2d9;
  --gray-400: #8695b7;
  --radius: 16px;
  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Inter', sans-serif;
  --shadow-glow: 0 0 40px rgba(34, 211, 238, 0.25);
  --transition: 0.3s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--navy-950);
  color: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}

body.modal-open {
  position: fixed;
  top: var(--scroll-lock-top, 0);
  left: 0;
  right: 0;
  width: 100%;
  overflow: hidden;
  overscroll-behavior: none;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

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

.text-gradient {
  background: linear-gradient(90deg, var(--cyan-300), var(--blue-400));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan-300);
  margin-bottom: 12px;
}

.section__title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  margin-bottom: 16px;
}

.section__desc {
  color: var(--gray-300);
  font-size: 1rem;
  max-width: 640px;
}

.section__head {
  text-align: center;
  margin: 0 auto 56px;
}
.section__head .section__desc { margin: 0 auto; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  white-space: nowrap;
}
.btn--primary {
  background: linear-gradient(90deg, var(--blue-500), var(--cyan-400));
  color: #04121f;
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-glow); }
.btn--ghost {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--white);
}
.btn--ghost:hover { border-color: var(--cyan-300); color: var(--cyan-300); }
.btn--sm { padding: 10px 20px; font-size: 0.85rem; }
.btn--block { width: 100%; }

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(6, 11, 24, 0.7);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  padding-bottom: 14px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.2rem;
}
.brand__logo {
  width: 36px;
  height: 36px;
  object-fit: cover;
  border-radius: 50%;
  background: var(--white);
  padding: 3px;
}
.brand__accent { color: var(--cyan-300); }

.nav__list {
  display: flex;
  gap: 32px;
}
.nav__link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--gray-300);
  transition: color var(--transition);
}
.nav__link:hover { color: var(--cyan-300); }

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
}
.nav__toggle span {
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  padding: 168px 0 100px;
  overflow: hidden;
}
.hero__bg { position: absolute; inset: 0; z-index: 0; }
.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 50% 0%, black 40%, transparent 75%);
}
.hero__glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.35;
}
.hero__glow--1 {
  width: 420px; height: 420px;
  background: var(--blue-500);
  top: -120px; left: -100px;
}
.hero__glow--2 {
  width: 380px; height: 380px;
  background: var(--cyan-400);
  top: 60px; right: -120px;
}
.hero__inner { position: relative; z-index: 1; text-align: center; }
.hero__title {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 800;
  line-height: 1.25;
  max-width: 900px;
  margin: 0 auto 24px;
}
.hero__desc {
  color: var(--gray-300);
  max-width: 640px;
  margin: 0 auto 36px;
  font-size: 1.05rem;
}
.hero__actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}
.hero__stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
  padding-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}
.stat { display: flex; flex-direction: column; gap: 4px; }
.stat__num {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--cyan-300);
}
.stat__label { color: var(--gray-400); font-size: 0.85rem; }

/* ===== About ===== */
.about { padding: 100px 0; background: var(--navy-900); }
.about__inner {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 64px;
  align-items: center;
}
.about__card {
  background: linear-gradient(160deg, var(--navy-800), var(--navy-700));
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  padding: 40px;
  text-align: center;
}
.about__logo {
  width: 96px;
  height: 96px;
  object-fit: cover;
  border-radius: 50%;
  background: var(--white);
  padding: 10px;
  margin: 0 auto 20px;
}
.about__card h3 { font-family: var(--font-heading); font-size: 1.2rem; margin-bottom: 8px; }
.about__card p { color: var(--gray-400); font-size: 0.9rem; }

.about__points { margin-top: 24px; display: flex; flex-direction: column; gap: 14px; }
.about__points li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--gray-300);
}
.about__points i { color: var(--cyan-300); flex-shrink: 0; margin-top: 2px; width: 20px; height: 20px; }

/* ===== Services ===== */
.services { padding: 100px 0; }
.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--navy-800);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius);
  padding: 32px;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(34, 211, 238, 0.4);
  box-shadow: var(--shadow-glow);
}
.service-card__icon {
  width: 52px; height: 52px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(37,99,235,0.25), rgba(34,211,238,0.25));
  color: var(--cyan-300);
  margin-bottom: 20px;
}
.service-card h3 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  margin-bottom: 12px;
}
.service-card p { color: var(--gray-400); font-size: 0.92rem; }
.service-card--cta {
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: linear-gradient(160deg, var(--navy-700), var(--navy-800));
  border-color: rgba(34, 211, 238, 0.3);
}
.service-card--cta .btn { margin-top: 16px; align-self: flex-start; }

/* ===== Why ===== */
.why { padding: 100px 0; background: var(--navy-900); }
.why__content { text-align: center; }
.why__content .section__title,
.why__content .section__desc { margin-left: auto; margin-right: auto; }
.why__grid {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: left;
}
.why__item {
  display: flex;
  gap: 14px;
  background: var(--navy-800);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 24px;
}
.why__item i { color: var(--cyan-300); width: 26px; height: 26px; flex-shrink: 0; }
.why__item h4 { font-family: var(--font-heading); font-size: 1rem; margin-bottom: 6px; }
.why__item p { color: var(--gray-400); font-size: 0.88rem; }

/* ===== CTA ===== */
.cta { padding: 80px 0; }
.cta__inner {
  text-align: center;
  background: linear-gradient(135deg, var(--blue-500), var(--cyan-400));
  border-radius: 24px;
  padding: 64px 32px;
  color: #04121f;
}
.cta__inner h2 { font-family: var(--font-heading); font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 800; margin-bottom: 12px; }
.cta__inner p { max-width: 520px; margin: 0 auto 28px; opacity: 0.85; }
.cta .btn--primary { background: #04121f; color: var(--white); }

/* ===== Contact ===== */
.contact { padding: 100px 0; background: var(--navy-900); }
.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
}
.contact__list { margin-top: 28px; display: flex; flex-direction: column; gap: 20px; }
.contact__list li { display: flex; align-items: flex-start; gap: 14px; }
.contact__list i {
  width: 42px; height: 42px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 10px;
  background: rgba(34, 211, 238, 0.12);
  color: var(--cyan-300);
  flex-shrink: 0;
}
.contact__list .label { display: block; font-size: 0.8rem; color: var(--gray-400); margin-bottom: 2px; }
.contact__list a:hover { color: var(--cyan-300); }

.contact__form {
  background: var(--navy-800);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: var(--radius);
  padding: 36px;
}
.contact__form h3 { font-family: var(--font-heading); margin-bottom: 20px; }
.form__row { margin-bottom: 18px; display: flex; flex-direction: column; gap: 8px; }
.form__row label { font-size: 0.85rem; color: var(--gray-300); }
.form__row input,
.form__row textarea {
  background: var(--navy-900);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px;
  padding: 12px 14px;
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.95rem;
  resize: vertical;
}
.form__row input:focus,
.form__row textarea:focus {
  outline: none;
  border-color: var(--cyan-300);
}

/* ===== Footer ===== */
.footer { padding: 32px 0; border-top: 1px solid rgba(255,255,255,0.06); }
.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.footer__brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-heading); font-weight: 700; }
.footer__brand img {
  width: 28px;
  height: 28px;
  object-fit: cover;
  border-radius: 50%;
  background: var(--white);
  padding: 2px;
}
.footer__copy { color: var(--gray-400); font-size: 0.85rem; }

/* ===== Back to top ===== */
.back-to-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue-500), var(--cyan-400));
  color: #04121f;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity var(--transition), transform var(--transition);
  z-index: 90;
}
.back-to-top.visible { opacity: 1; pointer-events: auto; transform: translateY(0); }

/* ===== Custom Alert Modal ===== */
.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100dvh;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--transition);
}
.modal.open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}
.modal__overlay {
  position: absolute;
  inset: 0;
  background: rgba(6, 11, 24, 0.75);
  backdrop-filter: blur(4px);
}
.modal__box {
  position: relative;
  width: 100%;
  max-width: 400px;
  padding: 40px 32px 32px;
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--navy-800), var(--navy-900));
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow-glow), 0 20px 60px rgba(0, 0, 0, 0.5);
  text-align: center;
  transform: scale(0.9) translateY(16px);
  transition: transform var(--transition);
}
.modal.open .modal__box { transform: scale(1) translateY(0); }
.modal__close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  color: var(--gray-300);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}
.modal__close:hover { background: rgba(255, 255, 255, 0.12); color: var(--white); }
.modal__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue-500), var(--cyan-400));
  color: #04121f;
}
.modal__icon i { width: 32px; height: 32px; }
.modal__icon--error { display: none; background: linear-gradient(135deg, #f59e0b, #ef4444); color: #1a0a04; }
.modal.modal--error .modal__icon--success { display: none; }
.modal.modal--error .modal__icon--error { display: flex; }
.modal__title { font-family: var(--font-heading); font-size: 1.3rem; font-weight: 700; margin-bottom: 10px; }
.modal__desc { color: var(--gray-300); font-size: 0.92rem; margin-bottom: 24px; }

/* ===== Reveal animation ===== */
[data-aos] { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
[data-aos].aos-visible { opacity: 1; transform: translateY(0); }

/* ===== Responsive ===== */
@media (max-width: 992px) {
  .about__inner,
  .contact__inner { grid-template-columns: 1fr; }
  .services__grid { grid-template-columns: repeat(2, 1fr); }
  .why__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav { position: fixed; top: 68px; left: 0; right: 0; background: var(--navy-900); border-bottom: 1px solid rgba(255,255,255,0.08); max-height: 0; overflow: hidden; transition: max-height var(--transition); }
  .nav.open { max-height: 320px; }
  .nav__list { flex-direction: column; padding: 20px 24px; gap: 18px; }
  .nav__cta { display: none; }
  .nav__toggle { display: flex; }
  .services__grid { grid-template-columns: 1fr; }
  .why__grid { grid-template-columns: 1fr; }
  .hero__stats { gap: 28px; }
}