/* ============================================
   BitGrow Solutions - Main Stylesheet
   ============================================ */

:root {
  --navy: #0a0f24;
  --navy-light: #0f1730;
  --black: #05070f;
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-300: #cbd5e1;
  --gray-500: #64748b;
  --gray-700: #334155;
  --blue: #2563eb;
  --blue-light: #3b82f6;
  --cyan: #06b6d4;
  --gradient: linear-gradient(135deg, var(--blue) 0%, var(--cyan) 100%);
  --gradient-dark: linear-gradient(135deg, var(--navy) 0%, #131c3e 100%);
  --shadow-sm: 0 2px 8px rgba(10, 15, 36, 0.06);
  --shadow-md: 0 8px 24px rgba(10, 15, 36, 0.10);
  --shadow-lg: 0 20px 60px rgba(10, 15, 36, 0.16);
  --radius: 16px;
  --radius-sm: 10px;
  --container: 1180px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--navy);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3, h4 { font-weight: 800; line-height: 1.15; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); }
h3 { font-size: 1.3rem; }

.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blue);
  background: rgba(37, 99, 235, 0.08);
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 16px;
}

.section { padding: 96px 0; }
.section-dark { background: var(--gradient-dark); color: var(--white); }
.section-head { max-width: 640px; margin-bottom: 56px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head p { color: var(--gray-500); font-size: 1.05rem; margin-top: 14px; }
.section-dark .section-head p { color: var(--gray-300); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 100px;
  font-weight: 700;
  font-size: 0.95rem;
  transition: all 0.25s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--gradient);
  color: var(--white);
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.3);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(37, 99, 235, 0.4); }
.btn-outline {
  background: transparent;
  color: var(--navy);
  border: 1.5px solid var(--gray-300);
}
.btn-outline:hover { border-color: var(--blue); color: var(--blue); }
.section-dark .btn-outline { color: var(--white); border-color: rgba(255,255,255,0.3); }
.section-dark .btn-outline:hover { border-color: var(--cyan); color: var(--cyan); }
.btn-block { width: 100%; justify-content: center; }

/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(10, 15, 36, 0.06);
}
.navbar .container { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.15rem; }
.logo-mark {
  width: 34px; height: 34px; border-radius: 9px;
  background: var(--gradient);
  display: flex; align-items: center; justify-content: center;
  color: white; font-weight: 800; font-size: 1rem;
}
.nav-links { display: flex; gap: 32px; align-items: center; }
.nav-links a { font-weight: 600; font-size: 0.94rem; color: var(--gray-700); transition: color 0.2s; }
.nav-links a:hover, .nav-links a.active { color: var(--blue); }
.nav-actions { display: flex; align-items: center; gap: 16px; }
.hamburger { display: none; flex-direction: column; gap: 5px; width: 26px; }
.hamburger span { height: 2px; background: var(--navy); border-radius: 2px; }

.mobile-menu {
  display: none;
  position: fixed; inset: 76px 0 0 0;
  background: var(--white);
  z-index: 999;
  padding: 32px 24px;
  overflow-y: auto;
}
.mobile-menu.open { display: block; }
.mobile-menu a { display: block; padding: 16px 0; font-weight: 700; font-size: 1.15rem; border-bottom: 1px solid var(--gray-100); }

/* Hero */
.hero {
  position: relative;
  background: var(--gradient-dark);
  color: var(--white);
  padding: 72px 0 100px;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute; top: -20%; right: -10%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(6,182,212,0.25) 0%, transparent 70%);
  border-radius: 50%;
}
.hero::after {
  content: '';
  position: absolute; bottom: -30%; left: -10%;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(37,99,235,0.2) 0%, transparent 70%);
  border-radius: 50%;
}
.hero-grid { position: relative; z-index: 2; display: grid; grid-template-columns: 1.1fr 1fr; gap: 60px; align-items: center; }
.hero h1 { font-size: clamp(2.2rem, 4.2vw, 3.4rem); margin-bottom: 20px; }
.hero h1 .grad { background: var(--gradient); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.lead { font-size: 1.1rem; color: var(--gray-300); max-width: 520px; margin-bottom: 32px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 32px; }
.hero-trust { display: flex; gap: 8px; flex-wrap: wrap; font-size: 0.85rem; color: var(--gray-300); }
.hero-trust span { background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.1); padding: 6px 14px; border-radius: 100px; }

.hero-visual {
  position: relative;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 20px;
  padding: 20px;
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-lg);
}
.hero-visual .mock-bar { display: flex; gap: 6px; margin-bottom: 16px; }
.hero-visual .mock-bar span { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,0.2); }
.hero-visual .mock-chart {
  height: 160px; border-radius: 12px;
  background: linear-gradient(180deg, rgba(37,99,235,0.25), rgba(6,182,212,0.05));
  display: flex; align-items: flex-end; gap: 8px; padding: 16px;
  margin-bottom: 16px;
}
.hero-visual .mock-chart div { flex: 1; background: var(--gradient); border-radius: 6px 6px 0 0; opacity: 0.85; }
.hero-visual .mock-row { display: flex; gap: 12px; }
.hero-visual .mock-card { flex: 1; background: rgba(255,255,255,0.06); border-radius: 10px; padding: 14px; }
.hero-visual .mock-card .num { font-weight: 800; font-size: 1.3rem; }
.hero-visual .mock-card .lbl { font-size: 0.75rem; color: var(--gray-300); }

/* Stats */
.stats-strip { background: var(--white); padding: 56px 0; border-bottom: 1px solid var(--gray-100); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.stat-item .num { font-size: 2.2rem; font-weight: 800; background: var(--gradient); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat-item .lbl { color: var(--gray-500); font-size: 0.9rem; font-weight: 600; margin-top: 4px; }

/* Cards grid */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

.card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.card .icon-box {
  width: 52px; height: 52px; border-radius: 14px;
  background: var(--gradient); display: flex; align-items: center; justify-content: center;
  color: white; margin-bottom: 20px; font-size: 1.3rem;
}
.card h3 { margin-bottom: 10px; }
.card p { color: var(--gray-500); font-size: 0.95rem; margin-bottom: 14px; }
.card .tags { display: flex; flex-wrap: wrap; gap: 6px; }
.card .tags span { background: var(--gray-50); color: var(--gray-700); font-size: 0.75rem; font-weight: 600; padding: 4px 10px; border-radius: 100px; }

/* Solutions */
.solutions-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.solution-card {
  border-radius: var(--radius);
  padding: 28px 24px;
  color: white;
  min-height: 200px;
  display: flex; flex-direction: column; justify-content: flex-end;
  position: relative;
  overflow: hidden;
    background-size: cover;
  background-position: center;
}
.solution-card::before { content:''; position:absolute; inset:0; background: var(--gradient-dark); opacity: 0.78; z-index: 0; }
.solution-card::after { content:''; position:absolute; top:-40%; right:-30%; width:150px; height:150px; border-radius:50%; background: radial-gradient(circle, rgba(6,182,212,0.35), transparent 70%); }
.solution-card > * { position: relative; z-index: 1; }
.solution-card h4 { font-size: 1.1rem; margin-bottom: 8px; }
.solution-card p { font-size: 0.88rem; color: var(--gray-300); }

/* Why us */
.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.why-item { display: flex; gap: 16px; }
.why-item .num { font-weight: 800; font-size: 1.4rem; color: var(--blue); min-width: 40px; }
.why-item h4 { margin-bottom: 6px; }
.why-item p { color: var(--gray-500); font-size: 0.92rem; }

/* Portfolio */
.filter-bar { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 40px; }
.filter-btn {
  padding: 10px 20px; border-radius: 100px; font-weight: 600; font-size: 0.88rem;
  border: 1.5px solid var(--gray-300); color: var(--gray-700); background: white;
}
.filter-btn.active, .filter-btn:hover { background: var(--gradient); color: white; border-color: transparent; }

.portfolio-card { border-radius: var(--radius); overflow: hidden; background: white; border: 1px solid var(--gray-100); box-shadow: var(--shadow-sm); transition: 0.25s; }
.portfolio-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.portfolio-thumb { height: 190px; background: var(--gradient-dark); position: relative; }
.portfolio-thumb::after { content: attr(data-cat); position:absolute; top:14px; left:14px; background: rgba(255,255,255,0.15); backdrop-filter: blur(6px); color:white; font-size:0.7rem; font-weight:700; text-transform:uppercase; letter-spacing:0.05em; padding:5px 12px; border-radius:100px; }
.portfolio-body { padding: 24px; }
.portfolio-body .industry { color: var(--blue); font-weight: 700; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 6px; }
.portfolio-body h3 { margin-bottom: 8px; }
.portfolio-body p { color: var(--gray-500); font-size: 0.9rem; margin-bottom: 14px; }

/* Case study */
.case-flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.case-step { background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); border-radius: var(--radius-sm); padding: 22px; }
.case-step .tag { color: var(--cyan); font-weight: 700; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 8px; }
.case-step p { color: var(--gray-300); font-size: 0.9rem; }

/* Process timeline */
.timeline { display: grid; grid-template-columns: repeat(7, 1fr); gap: 12px; }
.timeline-item { text-align: center; }
.timeline-item .step-num {
  width: 48px; height: 48px; border-radius: 50%; margin: 0 auto 14px;
  background: var(--gradient); color: white; display: flex; align-items: center; justify-content: center;
  font-weight: 800;
}
.timeline-item h4 { font-size: 0.95rem; margin-bottom: 6px; }
.timeline-item p { font-size: 0.8rem; color: var(--gray-500); }

/* Technology */
.tech-strip { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }
.tech-pill { padding: 12px 22px; border-radius: 100px; background: var(--gray-50); border: 1px solid var(--gray-100); font-weight: 700; font-size: 0.9rem; color: var(--gray-700); }

/* Pricing */
.pricing-card { border-radius: var(--radius); padding: 36px 28px; border: 1.5px solid var(--gray-100); background: white; }
.pricing-card.featured { border-color: transparent; background: var(--gradient-dark); color: white; box-shadow: var(--shadow-lg); transform: scale(1.03); position: relative; }
.pricing-card.featured::before { content: 'Most Popular'; position: absolute; top: -14px; right: 28px; background: var(--gradient); color: white; font-size: 0.72rem; font-weight: 700; padding: 6px 14px; border-radius: 100px; }
.pricing-card h3 { margin-bottom: 8px; }
.pricing-card p.desc { color: var(--gray-500); font-size: 0.9rem; margin-bottom: 24px; }
.pricing-card.featured p.desc { color: var(--gray-300); }
.pricing-card ul { margin-bottom: 28px; }
.pricing-card li { padding: 9px 0; font-size: 0.92rem; border-bottom: 1px solid rgba(0,0,0,0.05); display:flex; gap:10px; align-items:flex-start; }
.pricing-card.featured li { border-bottom: 1px solid rgba(255,255,255,0.1); }

/* Testimonials */
.testimonial-card { background: var(--gray-50); border-radius: var(--radius); padding: 30px; }
.testimonial-card p.quote { font-size: 1rem; margin-bottom: 22px; color: var(--gray-700); }
.testimonial-person { display: flex; align-items: center; gap: 12px; }
.avatar { width: 46px; height: 46px; border-radius: 50%; background: var(--gradient); flex-shrink: 0; display:flex; align-items:center; justify-content:center; color:white; font-weight:700; }
.testimonial-person .name { font-weight: 700; font-size: 0.92rem; }
.testimonial-person .role { color: var(--gray-500); font-size: 0.82rem; }

/* FAQ */
.faq-item { border-bottom: 1px solid var(--gray-100); }
.faq-q { display: flex; justify-content: space-between; align-items: center; padding: 22px 0; font-weight: 700; cursor: pointer; }
.faq-q .plus { font-size: 1.4rem; color: var(--blue); transition: transform 0.25s; }
.faq-item.open .faq-q .plus { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.faq-a p { padding-bottom: 22px; color: var(--gray-500); font-size: 0.92rem; }

/* CTA section */
.cta-box {
  border-radius: 28px;
  background: var(--gradient-dark);
  padding: 72px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
  color: white;
}
.cta-box::before { content:''; position:absolute; top:-30%; left:50%; transform:translateX(-50%); width:500px; height:500px; background: radial-gradient(circle, rgba(6,182,212,0.3), transparent 70%); }
.cta-box > * { position: relative; z-index: 1; }
.cta-box h2 { margin-bottom: 14px; }
.cta-box p { color: var(--gray-300); margin-bottom: 32px; }
.cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 48px; }
.contact-info-card { background: var(--gradient-dark); color: white; border-radius: var(--radius); padding: 36px; height: fit-content; }
.contact-info-card .row { display: flex; gap: 14px; margin: 20px 0; align-items: flex-start; }
.contact-info-card .row .icon { width: 40px; height: 40px; border-radius: 10px; background: rgba(255,255,255,0.1); display:flex; align-items:center; justify-content:center; flex-shrink:0; }
form .field { margin-bottom: 18px; }
form label { display: block; font-weight: 700; font-size: 0.85rem; margin-bottom: 8px; }
form input, form select, form textarea {
  width: 100%; padding: 13px 16px; border-radius: 10px; border: 1.5px solid var(--gray-300);
  font-family: inherit; font-size: 0.95rem; transition: border-color 0.2s;
}
form input:focus, form select:focus, form textarea:focus { outline: none; border-color: var(--blue); }
form .field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* Footer */
footer { background: var(--black); color: var(--gray-300); padding: 72px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
.footer-brand p { font-size: 0.9rem; margin: 14px 0 20px; max-width: 280px; }
.footer-col h5 { color: white; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 18px; }
.footer-col a { display: block; padding: 7px 0; font-size: 0.9rem; color: var(--gray-300); transition: color 0.2s; }
.footer-col a:hover { color: var(--cyan); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 24px; display: flex; justify-content: space-between; font-size: 0.85rem; flex-wrap: wrap; gap: 12px; }
.footer-bottom a { color: var(--gray-500); }

/* Floating WhatsApp */
.float-wa {
  position: fixed; bottom: 24px; right: 24px; z-index: 900;
  width: 58px; height: 58px; border-radius: 50%;
  background: #25D366; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.4);
  color: white; font-size: 1.5rem;
}
.sticky-cta-mobile { display: none; }

/* Scroll reveal */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }

/* Breadcrumb / page header */
.page-header { background: var(--gradient-dark); color: white; padding: 64px 0 56px; text-align:center; }
.page-header h1 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); margin-bottom: 12px; }
.page-header p { color: var(--gray-300); max-width: 560px; margin: 0 auto; }

/* ============ Responsive ============ */
@media (max-width: 992px) {
  .hero-grid { grid-template-columns: 1fr; }
  .grid-3, .grid-4, .grid-2, .solutions-grid, .why-grid, .case-flow, .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .timeline { grid-template-columns: repeat(4, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .nav-links, .nav-actions .btn-outline { display: none; }
  .hamburger { display: flex; }
  .section { padding: 64px 0; }
  .grid-3, .grid-4, .grid-2, .solutions-grid, .why-grid, .case-flow, .stats-grid, .timeline, .footer-grid { grid-template-columns: 1fr; }
  .why-grid { gap: 22px; }
  form .field-row { grid-template-columns: 1fr; }
  .pricing-card.featured { transform: none; }
  .sticky-cta-mobile {
    display: block; position: fixed; bottom: 0; left: 0; right: 0; z-index: 899;
    background: white; padding: 12px 16px; box-shadow: 0 -8px 24px rgba(0,0,0,0.08);
  }
  .float-wa { bottom: 78px; }
  
}
.website-types-grid .card { text-align: center; }
.website-types-grid .icon-box { margin: 0 auto 20px; }
.website-types-grid .card p { color: var(--gray-700) !important; }
.website-types-grid .card h3 { color: var(--navy) !important; }