/* =========================================================
   Exact brand palette from expertabg.com
   ========================================================= */
:root {
  --blue:        #1863DC;   /* primary - buttons, CTAs */
  --blue-mid:    #2E8DED;   /* secondary blue */
  --blue-dark:   #0F4EB5;   /* hover state */
  --blue-tint:   #EBF3FD;   /* very light blue - card hovers, bg tints */

  --dark:        #212121;   /* headings, strong text */
  --body:        #707070;   /* body text */
  --muted:       #B7B7B7;   /* placeholders, meta */
  --white:       #FFFFFF;
  --off-white:   #F4F4F4;   /* alternate section bg */
  --border:      #EBEBEB;

  /* Dark overlay (hero / dark sections) */
  --overlay:     rgba(0, 0, 0, 0.78);
  --dark-bg:     #0D1B2A;   /* deep dark for footer / CTA */

  --font: 'Comfortaa', sans-serif;

  --fw-regular: 400;
  --fw-medium:  500;
  --fw-semi:    600;
  --fw-bold:    700;

  --fs-xs:   0.75rem;
  --fs-sm:   0.875rem;
  --fs-base: 1rem;
  --fs-md:   1.125rem;
  --fs-lg:   1.25rem;
  --fs-xl:   1.5rem;
  --fs-2xl:  2rem;
  --fs-3xl:  2.5rem;
  --fs-4xl:  3rem;
  --fs-5xl:  3.75rem;

  --r-sm:  4px;
  --r:     8px;
  --r-lg: 14px;
  --r-xl: 20px;

  --shadow-sm: 0 2px 8px rgba(0,0,0,.07);
  --shadow:    0 4px 20px rgba(0,0,0,.10);
  --shadow-lg: 0 12px 40px rgba(0,0,0,.14);

  --ease: 0.22s ease;
  --container: 1170px;
  --section-v: 90px;
}

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

body {
  overflow-x: hidden;
  font-family: var(--font);
  font-size: var(--fs-base);
  color: var(--body);
  background: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--ease); }
ul { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }

/* =========================================================
   Typography
   ========================================================= */
h1, h2, h3, h4, h5 {
  font-family: var(--font);
  font-weight: var(--fw-bold);
  line-height: 1.2;
  color: var(--dark);
}

h1 { font-size: clamp(1.9rem, 4vw, 3rem); font-weight: var(--fw-bold); }
h2 { font-size: clamp(1.35rem, 2.5vw, 1.875rem); }
h3 { font-size: clamp(1.1rem, 1.8vw, 1.35rem); }

p { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

/* =========================================================
   Layout
   ========================================================= */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 24px;
}

.section { padding-block: var(--section-v); }
.section--grey { background: var(--off-white); }
.section--dark { background: var(--dark-bg); }
.section--blue { background: var(--blue); }

.section-hd {
  margin-bottom: 56px;
}

.section-hd--center {
  text-align: center;
}

.section-hd--center .section-hd__label { justify-content: center; }

.section-hd__label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: var(--fs-xs);
  font-weight: var(--fw-semi);
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 12px;
}

.section-hd__label::before {
  content: '';
  width: 30px;
  height: 2px;
  background: var(--blue);
  border-radius: 1px;
  flex-shrink: 0;
}

.section-hd--center .section-hd__label::before { display: none; }
.section-hd--center .section-hd__label::after {
  content: '';
  width: 30px;
  height: 2px;
  background: var(--blue);
  border-radius: 1px;
}

/* Label on dark bg */
.on-dark .section-hd__label {
  color: rgba(255,255,255,.55);
}
.on-dark .section-hd__label::before,
.on-dark .section-hd__label::after {
  background: rgba(255,255,255,.3);
}

.section-hd__title {
  color: var(--dark);
  margin-bottom: 14px;
}

.on-dark .section-hd__title { color: var(--white); }

.section-hd__sub {
  font-size: var(--fs-md);
  color: var(--body);
  line-height: 1.8;
  max-width: 560px;
}

.section-hd--center .section-hd__sub { margin-inline: auto; }
.on-dark .section-hd__sub { color: rgba(255,255,255,.6); }

/* =========================================================
   Buttons
   ========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--r);
  font-family: var(--font);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semi);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: all var(--ease);
  cursor: pointer;
  border: 2px solid transparent;
  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);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(24,99,220,.3);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,.4);
}
.btn-outline:hover {
  background: rgba(255,255,255,.1);
  border-color: var(--white);
  color: var(--white);
}

.btn-outline-blue {
  background: transparent;
  color: var(--blue);
  border-color: var(--blue);
}
.btn-outline-blue:hover {
  background: var(--blue);
  color: var(--white);
  transform: translateY(-2px);
}

.btn-outline-dark {
  background: transparent;
  color: var(--dark);
  border-color: var(--border);
}
.btn-outline-dark:hover {
  border-color: var(--blue);
  color: var(--blue);
}

.btn-lg { padding: 16px 36px; font-size: var(--fs-base); }

.btn-white {
  background: var(--white);
  color: var(--blue);
  border-color: var(--white);
}
.btn-white:hover {
  background: transparent;
  color: var(--white);
}

.btn-group { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }