/* =============================================
   Bytes Smith — Main Stylesheet
   ============================================= */

/* --- Variables --- */
:root {
  --navy:       #0D1B2A;
  --navy-mid:   #1A3550;
  --teal:       #06B6D4;
  --teal-dark:  #0891B2;
  --white:      #FFFFFF;
  --grey-light: #F1F5F9;
  --grey-mid:   #94A3B8;
  --text:       #1E293B;
  --text-light: #475569;
  --border:     #E2E8F0;
  --radius:     8px;
  --shadow:     0 2px 16px rgba(0,0,0,0.08);
  --transition: 0.2s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--white);
}

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

/* --- Typography --- */
h1, h2, h3, h4 { line-height: 1.2; font-weight: 700; color: var(--navy); }
h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.2rem); }
h3 { font-size: 1.2rem; }
p  { color: var(--text-light); }

/* --- Layout --- */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

section { padding: 80px 0; }

.section-label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 12px;
}

.section-intro {
  max-width: 560px;
  margin-bottom: 48px;
}

.section-intro h2 { margin-bottom: 12px; }
.section-intro p  { font-size: 1.05rem; }

.section-intro.centered {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

/* --- Buttons --- */
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--teal);
  color: var(--white);
  border-color: var(--teal);
}
.btn-primary:hover {
  background: var(--teal-dark);
  border-color: var(--teal-dark);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.6);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--white);
}

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

/* =============================================
   NAVIGATION
   ============================================= */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -0.02em;
}
.nav-logo span { color: var(--teal); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-light);
  transition: color var(--transition);
}
.nav-links a:hover,
.nav-links a.active { color: var(--navy); }

.nav-links .btn { margin-left: 8px; padding: 8px 20px; }

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--navy);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* Mobile nav open state */
.nav-toggle.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* =============================================
   HERO
   ============================================= */
.hero {
  background: var(--navy);
  color: var(--white);
  padding: 100px 0 90px;
  text-align: center;
}

.hero h1 {
  color: var(--white);
  max-width: 720px;
  margin: 0 auto 20px;
}

.hero h1 span { color: var(--teal); }

.hero p {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.75);
  max-width: 520px;
  margin: 0 auto 36px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* =============================================
   SERVICES CARDS
   ============================================= */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.service-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: box-shadow var(--transition), transform var(--transition);
}

.service-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

.service-icon {
  width: 48px;
  height: 48px;
  background: rgba(6, 182, 212, 0.1);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.4rem;
}

.service-card h3 {
  margin-bottom: 10px;
  font-size: 1.1rem;
}

.service-card p {
  font-size: 0.95rem;
  line-height: 1.65;
}

.service-card .card-link {
  display: inline-block;
  margin-top: 20px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--teal-dark);
}
.service-card .card-link:hover { text-decoration: underline; }

/* =============================================
   WHY US — TRUST STRIP
   ============================================= */
.why-us { background: var(--grey-light); }

.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.why-item { text-align: center; }

.why-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.why-item h3 { margin-bottom: 8px; }
.why-item p  { font-size: 0.95rem; }

/* =============================================
   CTA STRIP
   ============================================= */
.cta-strip {
  background: var(--navy-mid);
  color: var(--white);
  text-align: center;
  padding: 72px 0;
}

.cta-strip h2 { color: var(--white); margin-bottom: 12px; }
.cta-strip p  { color: rgba(255,255,255,0.7); margin-bottom: 32px; font-size: 1.05rem; }

/* =============================================
   SERVICES PAGE — DETAIL
   ============================================= */
.page-hero {
  background: var(--navy);
  color: var(--white);
  padding: 72px 0 64px;
  text-align: center;
}

.page-hero h1 { color: var(--white); margin-bottom: 14px; }
.page-hero p  { color: rgba(255,255,255,0.75); font-size: 1.05rem; max-width: 520px; margin: 0 auto; }

.service-detail {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 48px;
  padding: 56px 0;
  border-bottom: 1px solid var(--border);
  align-items: start;
}

.service-detail:last-child { border-bottom: none; }

.service-detail-icon {
  width: 64px;
  height: 64px;
  background: rgba(6, 182, 212, 0.1);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
}

.service-detail-left { display: flex; flex-direction: column; align-items: flex-start; gap: 16px; }
.service-detail-left h2 { font-size: 1.5rem; }

.service-includes {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.service-includes li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.95rem;
  color: var(--text-light);
}

.service-includes li::before {
  content: "✓";
  color: var(--teal);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

/* =============================================
   ABOUT PAGE
   ============================================= */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-values {
  background: var(--grey-light);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.value-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px 24px;
  border: 1px solid var(--border);
}

.value-card .value-icon { font-size: 1.6rem; margin-bottom: 12px; }
.value-card h3 { margin-bottom: 8px; font-size: 1rem; }
.value-card p  { font-size: 0.9rem; }

/* =============================================
   CONTACT PAGE
   ============================================= */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 64px;
  padding: 80px 0;
}

.contact-info h2 { margin-bottom: 16px; }
.contact-info p  { margin-bottom: 28px; }

.contact-detail {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-detail-item { display: flex; flex-direction: column; gap: 4px; }
.contact-detail-item span:first-child { font-size: 0.8rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; color: var(--teal-dark); }
.contact-detail-item span:last-child  { font-size: 0.95rem; color: var(--text); }

/* Form */
.contact-form { display: flex; flex-direction: column; gap: 20px; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group { display: flex; flex-direction: column; gap: 6px; }

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
}

.form-group input,
.form-group select,
.form-group textarea {
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  background: var(--white);
  transition: border-color var(--transition);
  outline: none;
  width: 100%;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--teal);
}

.form-group textarea { resize: vertical; min-height: 130px; }

/* =============================================
   FOOTER
   ============================================= */
.footer {
  background: var(--navy);
  color: rgba(255,255,255,0.6);
  padding: 56px 0 32px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand .nav-logo { font-size: 1.1rem; color: var(--white); }
.footer-brand p { font-size: 0.9rem; margin-top: 12px; max-width: 260px; line-height: 1.7; }

.footer-col h4 {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--white);
  margin-bottom: 16px;
}

.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col ul li a { font-size: 0.9rem; transition: color var(--transition); }
.footer-col ul li a:hover { color: var(--teal); }

.footer-bottom {
  padding-top: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
}

.footer-bottom a { color: rgba(255,255,255,0.6); }
.footer-bottom a:hover { color: var(--teal); }

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 900px) {
  .services-grid,
  .why-grid        { grid-template-columns: 1fr 1fr; }
  .service-detail  { grid-template-columns: 1fr; gap: 24px; }
  .about-intro     { grid-template-columns: 1fr; }
  .contact-layout  { grid-template-columns: 1fr; padding: 48px 0; }
  .footer-inner    { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  section { padding: 56px 0; }
  .hero   { padding: 72px 0 64px; }

  .nav-links  { display: none; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0; background: var(--white); border-bottom: 1px solid var(--border); padding: 20px 24px; gap: 16px; }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }
  .nav        { position: sticky; }

  .services-grid,
  .why-grid,
  .values-grid  { grid-template-columns: 1fr; }
  .form-row     { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
}