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

:root {
  --navy:   #0d2137;
  --blue:   #1a6fa8;
  --ice:    #4fb3e8;
  --ice-lt: #e8f5fc;
  --bg:     #f4f8fb;
  --white:  #ffffff;
  --text:   #334155;
  --muted:  #64748b;
  --border: #d1e6f4;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(13,33,55,0.10);
  --font:   'Segoe UI', system-ui, -apple-system, sans-serif;
}

html  { scroll-behavior: smooth; }
body  { font-family: var(--font); color: var(--text); background: var(--white); line-height: 1.6; }
img   { max-width: 100%; display: block; }
a     { text-decoration: none; color: inherit; }
ul    { list-style: none; }

/* ===== Layout ===== */
.container { max-width: 1140px; margin: 0 auto; padding: 0 1.5rem; }

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: .85rem 2rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: .95rem;
  cursor: pointer;
  transition: all .2s;
  border: 2px solid transparent;
}
.btn--primary  { background: var(--ice); color: var(--navy); }
.btn--primary:hover { background: #3aa0d8; }
.btn--outline  { background: transparent; border-color: rgba(255,255,255,.55); color: var(--white); }
.btn--outline:hover { background: rgba(255,255,255,.12); }
.btn--full     { width: 100%; text-align: center; }

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1rem 0;
  transition: background .3s, box-shadow .3s;
}
.header--scrolled { background: var(--navy); box-shadow: 0 2px 16px rgba(0,0,0,.25); }

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

.nav__logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: .05em;
  display: flex;
  align-items: center;
  gap: .5rem;
}
.nav__logo-icon { color: var(--ice); font-size: 1.4rem; line-height: 1; }

.nav__menu { display: flex; gap: 2rem; }
.nav__link  { color: rgba(255,255,255,.82); font-weight: 500; font-size: .95rem; transition: color .2s; }
.nav__link:hover { color: var(--ice); }

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav__toggle span { display: block; width: 24px; height: 2px; background: var(--white); border-radius: 2px; }

/* ===== Hero ===== */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--navy) 0%, #1a3c5e 55%, #1a6fa8 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 8rem 0 6rem;
}
.hero__bg {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(79,179,232,.14) 0%, transparent 60%);
}
.hero__content { position: relative; z-index: 1; max-width: 680px; }
.hero__badge {
  display: inline-block;
  background: rgba(79,179,232,.18);
  color: var(--ice);
  border: 1px solid rgba(79,179,232,.4);
  padding: .3rem 1rem;
  border-radius: 100px;
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}
.hero__title {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.14;
  margin-bottom: 1.25rem;
}
.hero__subtitle {
  font-size: 1.1rem;
  color: rgba(255,255,255,.72);
  margin-bottom: 2.5rem;
  max-width: 560px;
}
.hero__actions { display: flex; gap: 1rem; flex-wrap: wrap; }
.hero__wave { position: absolute; bottom: -1px; left: 0; right: 0; height: 80px; }
.hero__wave svg { width: 100%; height: 100%; }

/* ===== Stats ===== */
.stats { background: var(--bg); padding: 3.5rem 0; }
.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}
.stat__number { display: block; font-size: 2.5rem; font-weight: 800; color: var(--navy); line-height: 1; }
.stat__label  { display: block; font-size: .88rem; color: var(--muted); margin-top: .4rem; }

/* ===== Section headers ===== */
.section__header   { text-align: center; margin-bottom: 3rem; }
.section__eyebrow  {
  display: inline-block;
  font-size: .78rem;
  font-weight: 700;
  color: var(--blue);
  text-transform: uppercase;
  letter-spacing: .12em;
  margin-bottom: .75rem;
}
.section__title     { font-size: clamp(1.7rem, 3vw, 2.4rem); font-weight: 800; color: var(--navy); margin-bottom: .75rem; }
.section__title--left { text-align: left; }
.section__subtitle  { font-size: 1rem; color: var(--muted); max-width: 600px; margin: 0 auto; }

/* ===== Services ===== */
.services { padding: 5rem 0; background: var(--white); }
.services__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }

.service-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: box-shadow .2s, transform .2s;
}
.service-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); }

.service-card__icon {
  width: 60px; height: 60px;
  background: var(--navy);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}
.service-card__icon svg { width: 32px; height: 32px; stroke: var(--ice); }

.service-card__title { font-size: 1.2rem; font-weight: 700; color: var(--navy); margin-bottom: .75rem; }
.service-card__text  { font-size: .92rem; color: var(--muted); margin-bottom: 1.25rem; line-height: 1.65; }
.service-card__list li {
  font-size: .88rem;
  color: var(--text);
  padding: .28rem 0 .28rem 1.1rem;
  position: relative;
  border-bottom: 1px solid var(--border);
}
.service-card__list li:last-child { border-bottom: none; }
.service-card__list li::before { content: '—'; position: absolute; left: 0; color: var(--ice); font-weight: 700; }

/* ===== About ===== */
.about { padding: 5rem 0; background: var(--bg); }
.about__grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 5rem; align-items: center; }

.about__visual { display: flex; justify-content: center; align-items: center; }
.about__graphic {
  width: 260px; height: 260px;
  background: linear-gradient(135deg, var(--navy) 0%, #1a6fa8 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.snowflake-icon { font-size: 6rem; color: var(--ice); display: block; animation: spin 30s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.ring {
  position: absolute; border-radius: 50%;
  border: 1px solid rgba(79,179,232,.22);
}
.ring--1 { inset: -22px; }
.ring--2 { inset: -44px; }
.ring--3 { inset: -66px; }

.about__text .section__eyebrow { display: block; margin-bottom: .75rem; }
.about__text p { color: var(--muted); margin-bottom: 1rem; font-size: .95rem; line-height: 1.7; }
.about__features { margin-top: 1.5rem; display: flex; flex-direction: column; gap: .7rem; }
.feature { display: flex; align-items: flex-start; gap: .75rem; font-size: .92rem; }
.feature__check { color: var(--ice); font-weight: 800; font-size: 1.1rem; flex-shrink: 0; line-height: 1.5; }

/* ===== Contact ===== */
.contact { padding: 5rem 0; background: var(--white); }
.contact__grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 4rem; align-items: start; }
.contact__form { background: var(--bg); border-radius: var(--radius); padding: 2rem; }

.form__group  { margin-bottom: 1.25rem; }
.form__row    { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form__label  { display: block; font-size: .84rem; font-weight: 600; color: var(--navy); margin-bottom: .4rem; }
.form__input  {
  width: 100%;
  padding: .7rem .9rem;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: .9rem;
  font-family: var(--font);
  color: var(--text);
  background: var(--white);
  transition: border-color .2s;
}
.form__input:focus { outline: none; border-color: var(--ice); }
.form__textarea { resize: vertical; min-height: 100px; }
.form__select   { appearance: none; cursor: pointer; }
.contact__form .btn { margin-top: .5rem; }

.contact__info h3 { font-size: 1.15rem; color: var(--navy); margin-bottom: 1.5rem; font-weight: 700; }
.contact__item { display: flex; gap: 1rem; align-items: flex-start; margin-bottom: 1.5rem; }
.contact__icon { font-size: 1.3rem; flex-shrink: 0; margin-top: .1rem; }
.contact__item strong { display: block; font-size: .88rem; color: var(--navy); margin-bottom: .2rem; font-weight: 600; }
.contact__item p { font-size: .86rem; color: var(--muted); line-height: 1.55; }

/* ===== Footer ===== */
.footer { background: var(--navy); color: rgba(255,255,255,.55); padding: 2rem 0; }
.footer__inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.footer__brand { display: flex; align-items: center; gap: .6rem; color: var(--white); }
.footer__brand span { color: var(--ice); font-size: 1.3rem; }
.footer__brand p { font-size: .78rem; color: rgba(255,255,255,.45); margin-left: .2rem; }
.footer__copy { font-size: .78rem; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .services__grid { grid-template-columns: 1fr 1fr; }
  .about__grid    { grid-template-columns: 1fr; }
  .about__visual  { display: none; }
}
@media (max-width: 768px) {
  .services__grid { grid-template-columns: 1fr; gap: 1.25rem; }
  .contact__grid  { grid-template-columns: 1fr; }
  .stats__grid    { grid-template-columns: repeat(2, 1fr); }
  .form__row      { grid-template-columns: 1fr; }
  .nav__menu {
    position: fixed;
    top: 0; left: 0; right: 0;
    background: var(--navy);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    padding: 2rem;
    min-height: 100vh;
    transform: translateX(-100%);
    transition: transform .3s;
    z-index: 99;
  }
  .nav__menu--open { transform: translateX(0); }
  .nav__link       { font-size: 1.2rem; }
  .nav__toggle     { display: flex; z-index: 100; }
}
@media (max-width: 480px) {
  .hero__actions  { flex-direction: column; }
  .footer__inner  { flex-direction: column; text-align: center; }
}