/* ============================================================
   SHIVA ASSOCIATES - Taxation & Business Compliance Services
   Stylesheet: style.css
   Plain CSS3 only. Mobile-first, responsive.
   ============================================================ */

/* ------------------------------------------------------------
   1. VARIABLES (colours taken from the business card)
   ------------------------------------------------------------ */
:root {
  --navy: #1b2a6b;         /* business name colour on the card */
  --navy-dark: #101c4d;    /* deeper navy for gradients        */
  --navy-light: #2c3f8f;
  --blue: #1e8bcb;         /* bright blue tagline / bottom band */
  --blue-light: #35a8e0;
  --blue-soft: #e8f4fc;

  --green: #1faa59;        /* whatsapp action colour            */
  --green-dark: #178646;

  --text: #26303f;
  --text-soft: #5b6675;
  --white: #ffffff;
  --bg-alt: #f5f8fc;
  --border: #e2e8f1;

  --shadow-sm: 0 2px 6px rgba(16, 28, 77, 0.06);
  --shadow: 0 6px 20px rgba(16, 28, 77, 0.08);
  --shadow-lg: 0 14px 34px rgba(16, 28, 77, 0.14);

  --radius: 8px;
  --radius-lg: 12px;
}

/* ------------------------------------------------------------
   2. BASE / RESET
   ------------------------------------------------------------ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;      /* smooth scrolling, no JS needed */
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background-color: var(--white);
}

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

a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.25;
  color: var(--navy);
}

address { font-style: normal; }

ul { list-style: none; }

/* Layout helper */
.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 18px;
}

/* Sections */
.section { padding: 56px 0; }
.section-alt { background-color: var(--bg-alt); }

/* Offset for the sticky header when jumping to an anchor */
section[id] { scroll-margin-top: 130px; }

.section-head {
  max-width: 760px;
  margin: 0 auto 36px;
  text-align: center;
}

.section-eyebrow {
  color: var(--blue);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.section-head h2 { font-size: 1.6rem; }

.section-sub {
  margin-top: 12px;
  color: var(--text-soft);
}

.section-head-light h2 { color: var(--white); }
.section-head-light .section-eyebrow { color: var(--blue-light); }

/* ------------------------------------------------------------
   3. BUTTONS
   ------------------------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 24px;
  border: 2px solid transparent;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  font-family: inherit;
  text-align: center;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease,
              background-color 0.18s ease, color 0.18s ease;
}

.btn:hover { text-decoration: none; transform: translateY(-2px); }

.btn-icon { font-size: 1.05em; line-height: 1; }

.btn-primary {
  background-color: var(--navy);
  color: var(--white);
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover {
  background-color: var(--navy-dark);
  box-shadow: var(--shadow);
}

.btn-whatsapp {
  background-color: var(--green);
  color: var(--white);
  box-shadow: var(--shadow-sm);
}
.btn-whatsapp:hover {
  background-color: var(--green-dark);
  box-shadow: var(--shadow);
}

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

.btn-sm { padding: 9px 16px; font-size: 0.85rem; }
.btn-block { width: 100%; }

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* ------------------------------------------------------------
   4. HEADER / NAVIGATION
   ------------------------------------------------------------ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: var(--white);
  border-bottom: 3px solid var(--blue);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding-top: 14px;
  padding-bottom: 14px;
  text-align: center;
}

.brand { display: block; }
.brand:hover { text-decoration: none; }

.brand-name {
  display: block;
  color: var(--navy);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 1.4px;
  text-transform: uppercase;
}

.brand-tagline {
  display: block;
  color: var(--blue);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 1.1px;
  text-transform: uppercase;
  margin-top: 2px;
}

.main-nav ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px 20px;
}

.main-nav a {
  display: inline-block;
  padding: 4px 2px;
  color: var(--navy);
  font-size: 0.92rem;
  font-weight: 600;
  border-bottom: 2px solid transparent;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.main-nav a:hover {
  color: var(--blue);
  border-bottom-color: var(--blue);
  text-decoration: none;
}

/* ------------------------------------------------------------
   5. HERO
   ------------------------------------------------------------ */
.hero {
  position: relative;
  overflow: hidden;
  padding: 54px 0 60px;
  color: var(--white);
  background-color: var(--navy-dark);
  /* professional layered background - CSS only, no images */
  background-image:
    radial-gradient(circle at 88% 12%, rgba(30, 139, 203, 0.55) 0%, rgba(30, 139, 203, 0) 55%),
    radial-gradient(circle at 4% 92%, rgba(53, 168, 224, 0.30) 0%, rgba(53, 168, 224, 0) 45%),
    linear-gradient(135deg, #101c4d 0%, #1b2a6b 55%, #22398c 100%);
}

/* faint grid, like ruled ledger paper */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 46px 46px;
  pointer-events: none;
}

.hero-inner { position: relative; z-index: 1; }

.hero-text { max-width: 620px; }

.eyebrow {
  display: inline-block;
  margin-bottom: 14px;
  padding: 5px 12px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 40px;
  background-color: rgba(255, 255, 255, 0.08);
  color: #d7e8f7;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 1.1px;
  text-transform: uppercase;
}

.hero h1 {
  color: var(--white);
  font-size: 1.95rem;
  letter-spacing: -0.3px;
}

.hero-lead {
  margin-top: 16px;
  color: #d6e2f2;
  font-size: 1rem;
}

.hero-phone {
  margin-top: 20px;
  color: #cfe0f1;
  font-size: 0.95rem;
  font-weight: 600;
}
.hero-phone a { color: var(--white); border-bottom: 1px dotted rgba(255,255,255,0.6); }
.hero-phone a:hover { color: var(--blue-light); text-decoration: none; }

/* Decorative business-card panel */
.hero-card {
  margin-top: 40px;
  overflow: hidden;
  background-color: #fbfcfe;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.hero-card-body { padding: 22px 20px 18px; }

.hero-card-name {
  color: var(--navy);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 1.2px;
}

.hero-card-tag {
  margin-top: 2px;
  padding-bottom: 12px;
  color: var(--blue);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
}

.hero-card-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px 18px;
  margin: 14px 0 16px;
}

.hero-card-list li {
  position: relative;
  padding-left: 22px;
  color: var(--text);
  font-size: 0.87rem;
}

.hero-card-list li::before {
  content: "✔";
  position: absolute;
  left: 0;
  color: var(--blue);
  font-size: 0.85rem;
}

.hero-card-call {
  color: var(--navy);
  font-size: 1rem;
  font-weight: 700;
  text-align: center;
}

.hero-card-band {
  padding: 11px 16px;
  background-color: var(--blue);
  color: var(--white);
  font-size: 0.72rem;
  text-align: center;
}

/* ------------------------------------------------------------
   6. ABOUT
   ------------------------------------------------------------ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.about-text p { margin-bottom: 15px; color: var(--text-soft); }
.about-text p:last-child { margin-bottom: 0; }

.about-points {
  padding: 24px 22px;
  background-color: var(--blue-soft);
  border-left: 4px solid var(--blue);
  border-radius: var(--radius);
}

.about-points li {
  display: flex;
  gap: 10px;
  padding: 9px 0;
  color: var(--navy);
  font-size: 0.94rem;
  font-weight: 600;
  border-bottom: 1px solid rgba(30, 139, 203, 0.18);
}
.about-points li:last-child { border-bottom: none; }

.tick { color: var(--blue); font-weight: 700; }

/* ------------------------------------------------------------
   7. SERVICES
   ------------------------------------------------------------ */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.service-card {
  padding: 26px 22px;
  background-color: var(--white);
  border: 1px solid var(--border);
  border-top: 3px solid var(--blue);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.service-card:hover {
  transform: translateY(-6px);
  border-top-color: var(--navy);
  box-shadow: var(--shadow-lg);
}

.service-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin-bottom: 16px;
  border-radius: var(--radius);
  background-color: var(--blue-soft);
  color: var(--navy);
  font-size: 1.45rem;
  line-height: 1;
  transition: background-color 0.22s ease, color 0.22s ease;
}

.service-card:hover .service-icon {
  background-color: var(--navy);
  color: var(--white);
}

.service-card h3 { font-size: 1.06rem; margin-bottom: 8px; }
.service-card p { color: var(--text-soft); font-size: 0.92rem; }

/* ------------------------------------------------------------
   8. WHY CHOOSE US
   ------------------------------------------------------------ */
.why {
  background-color: var(--navy);
  background-image: linear-gradient(160deg, #101c4d 0%, #1b2a6b 60%, #24398a 100%);
}

.why-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.why-item {
  padding: 26px 22px;
  background-color: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-lg);
  transition: background-color 0.22s ease, transform 0.22s ease;
}

.why-item:hover {
  background-color: rgba(255, 255, 255, 0.13);
  transform: translateY(-4px);
}

.why-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  margin-bottom: 14px;
  border-radius: 50%;
  background-color: var(--blue);
  color: var(--white);
  font-size: 1.2rem;
  line-height: 1;
}

.why-item h3 { color: var(--white); font-size: 1.02rem; margin-bottom: 6px; }
.why-item p { color: #cddced; font-size: 0.9rem; }

/* ------------------------------------------------------------
   9. CONTACT
   ------------------------------------------------------------ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.contact-block {
  display: flex;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}
.contact-block:first-child { padding-top: 0; }

.contact-icon {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  background-color: var(--navy);
  color: var(--white);
  font-size: 1.15rem;
  line-height: 1;
}

.contact-block h3 {
  font-size: 0.78rem;
  letter-spacing: 1.1px;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 3px;
}

.contact-block p,
.contact-block address { color: var(--text); font-size: 0.97rem; }

.contact-block a { color: var(--navy); font-weight: 700; }
.contact-block a:hover { color: var(--blue); text-decoration: none; }

/* Enquiry form */
.contact-form-wrap {
  padding: 26px 22px;
  background-color: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.form-title {
  font-size: 1.15rem;
  padding-bottom: 14px;
  margin-bottom: 18px;
  border-bottom: 2px solid var(--blue);
}

.field { margin-bottom: 16px; }

.field label {
  display: block;
  margin-bottom: 6px;
  color: var(--navy);
  font-size: 0.85rem;
  font-weight: 600;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 11px 13px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background-color: var(--white);
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.field textarea { resize: vertical; }

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(30, 139, 203, 0.16);
}

.field input::placeholder,
.field textarea::placeholder { color: #9aa5b4; }

.form-note {
  margin-top: 14px;
  color: var(--text-soft);
  font-size: 0.85rem;
  text-align: center;
}

/* ------------------------------------------------------------
   10. FOOTER
   ------------------------------------------------------------ */
.site-footer {
  background-color: var(--navy-dark);
  color: #c7d4e6;
  font-size: 0.92rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  padding-top: 44px;
  padding-bottom: 34px;
}

.footer-name {
  color: var(--white);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 1.3px;
}

.footer-tagline {
  color: var(--blue-light);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 1.1px;
  text-transform: uppercase;
  margin-top: 2px;
}

.footer-desc { margin-top: 12px; color: #adbdd4; }

.footer-col h4 {
  color: var(--white);
  font-size: 0.82rem;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  padding-bottom: 9px;
  margin-bottom: 13px;
  border-bottom: 2px solid var(--blue);
  display: inline-block;
}

.footer-col ul li { margin-bottom: 8px; }

.footer-col a { color: #c7d4e6; }
.footer-col a:hover { color: var(--blue-light); text-decoration: none; }

.footer-col address { margin-top: 8px; color: #adbdd4; }

.footer-bar {
  padding: 14px 0;
  background-color: var(--blue);   /* blue band, like the card */
  color: var(--white);
  font-size: 0.82rem;
  text-align: center;
}

/* ------------------------------------------------------------
   11. RESPONSIVE - TABLET (>= 600px)
   ------------------------------------------------------------ */
@media (min-width: 600px) {
  .section { padding: 68px 0; }
  .section-head h2 { font-size: 1.9rem; }

  .hero h1 { font-size: 2.35rem; }

  .hero-card-body { padding: 26px 26px 20px; }
  .hero-card-list { grid-template-columns: 1fr 1fr; }
  .hero-card-name { font-size: 1.5rem; }

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

  .contact-form-wrap { padding: 30px 28px; }
}

/* ------------------------------------------------------------
   12. RESPONSIVE - DESKTOP (>= 900px)
   ------------------------------------------------------------ */
@media (min-width: 900px) {
  .section { padding: 82px 0; }
  .section-head { margin-bottom: 46px; }
  .section-head h2 { font-size: 2.1rem; }

  /* header becomes a single row */
  .header-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    text-align: left;
    gap: 24px;
    padding-top: 16px;
    padding-bottom: 16px;
  }

  .main-nav { margin-left: auto; }
  .main-nav ul { gap: 28px; }
  .header-cta { flex: 0 0 auto; }

  section[id] { scroll-margin-top: 96px; }

  /* hero side by side */
  .hero { padding: 84px 0 92px; }

  .hero-inner {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
    gap: 46px;
  }

  .hero h1 { font-size: 2.7rem; }
  .hero-lead { font-size: 1.05rem; }
  .hero-card { margin-top: 0; transform: rotate(-1.2deg); }

  .about-grid {
    grid-template-columns: 1.35fr 1fr;
    gap: 44px;
    align-items: start;
  }

  .services-grid { grid-template-columns: repeat(4, 1fr); gap: 22px; }
  .why-grid { grid-template-columns: repeat(4, 1fr); }

  .contact-grid { grid-template-columns: 1fr 1fr; gap: 44px; }

  .footer-grid { grid-template-columns: 1.5fr 1fr 1.3fr; gap: 40px; }
}

/* ------------------------------------------------------------
   13. ACCESSIBILITY / PRINT
   ------------------------------------------------------------ */
:focus-visible { outline: 3px solid var(--blue); outline-offset: 2px; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}