/* ============================================================
   Pavsontech – Main Stylesheet
   ============================================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
  --clr-primary:     #2563eb;
  --clr-primary-dk:  #1d4ed8;
  --clr-accent:      #0ea5e9;
  --clr-dark:        #0f172a;
  --clr-dark-2:      #1e293b;
  --clr-dark-3:      #334155;
  --clr-text:        #1e293b;
  --clr-muted:       #64748b;
  --clr-light:       #f8fafc;
  --clr-border:      #e2e8f0;
  --clr-white:       #ffffff;

  --gradient-hero:   linear-gradient(135deg, #0f172a 0%, #1e3a5f 60%, #0f172a 100%);
  --gradient-btn:    linear-gradient(90deg, var(--clr-primary) 0%, var(--clr-accent) 100%);
  --gradient-text:   linear-gradient(90deg, #60a5fa 0%, #38bdf8 100%);

  --radius-sm:       6px;
  --radius-md:       12px;
  --radius-lg:       20px;
  --radius-xl:       32px;

  --shadow-sm:       0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.05);
  --shadow-md:       0 4px 16px rgba(0,0,0,.10);
  --shadow-lg:       0 10px 40px rgba(0,0,0,.14);
  --shadow-card:     0 8px 32px rgba(37,99,235,.12);

  --font-base:       'Inter', system-ui, sans-serif;
  --transition:      0.25s cubic-bezier(.4,0,.2,1);

  --nav-h:           72px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-base);
  color: var(--clr-text);
  background: var(--clr-white);
  line-height: 1.6;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul { list-style: none; }

/* ---------- Container ---------- */
.container {
  width: 100%;
  max-width: 1160px;
  margin-inline: auto;
  padding-inline: 24px;
}

/* ---------- Section Utilities ---------- */
.section {
  padding-block: 96px;
}

.section-dark {
  background: var(--clr-dark);
  color: var(--clr-white);
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 64px;
}

.section-eyebrow {
  font-size: .8125rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--clr-primary);
  margin-bottom: 12px;
}

.eyebrow-light { color: var(--clr-accent); }

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--clr-text);
  margin-bottom: 16px;
}

.title-light { color: var(--clr-white); }

.section-body {
  font-size: 1.0625rem;
  color: var(--clr-muted);
  max-width: 56ch;
}

.body-light { color: #94a3b8; }

.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-family: var(--font-base);
  font-size: .9375rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-btn);
  color: var(--clr-white);
  box-shadow: 0 4px 20px rgba(37,99,235,.35);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(37,99,235,.45);
}

.btn-ghost {
  background: transparent;
  color: var(--clr-white);
  border: 2px solid rgba(255,255,255,.3);
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  background: rgba(255,255,255,.08);
  border-color: rgba(255,255,255,.6);
  transform: translateY(-2px);
}

.btn-outline-nav {
  background: transparent;
  color: var(--clr-primary);
  border: 2px solid var(--clr-primary);
  padding: 10px 22px;
}

.btn-outline-nav:hover,
.btn-outline-nav:focus-visible {
  background: var(--clr-primary);
  color: var(--clr-white);
}

.btn-full { width: 100%; }

/* ---------- Navbar ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  z-index: 100;
  transition: background var(--transition), box-shadow var(--transition);
}

.navbar.scrolled {
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--clr-white);
  letter-spacing: -.02em;
  transition: opacity var(--transition);
}

.navbar.scrolled .logo { color: var(--clr-dark); }

.logo:hover { opacity: .8; }

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--gradient-btn);
  color: var(--clr-white);
  border-radius: 8px;
  font-size: .9375rem;
  font-weight: 800;
  margin-right: 6px;
  vertical-align: middle;
}

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

.nav-links a {
  font-size: .9375rem;
  font-weight: 500;
  color: rgba(255,255,255,.85);
  transition: color var(--transition);
}

.navbar.scrolled .nav-links a { color: var(--clr-muted); }

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--clr-white);
}

.navbar.scrolled .nav-links a:hover,
.navbar.scrolled .nav-links a:focus-visible {
  color: var(--clr-primary);
}

/* keep the CTA button style visible on scroll */
.navbar.scrolled .btn-outline-nav { color: var(--clr-primary); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--clr-white);
  border-radius: 2px;
  transition: var(--transition);
}

.navbar.scrolled .hamburger span { background: var(--clr-dark); }

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--gradient-hero);
  position: relative;
  overflow: hidden;
  padding-block: 120px 80px;
}

.hero-bg-shapes {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: .25;
}

.shape-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, #2563eb, transparent 70%);
  top: -200px;
  right: -100px;
}

.shape-2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, #0ea5e9, transparent 70%);
  bottom: -100px;
  left: -80px;
}

.shape-3 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, #8b5cf6, transparent 70%);
  top: 40%;
  left: 30%;
}

.hero-content {
  position: relative;
  text-align: center;
  max-width: 760px;
}

.hero-eyebrow {
  font-size: .8125rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: 20px;
}

.hero-headline {
  font-size: clamp(2.25rem, 6vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  color: var(--clr-white);
  margin-bottom: 24px;
}

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.1875rem);
  color: #94a3b8;
  max-width: 560px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

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

.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  justify-content: center;
}

.scroll-indicator span {
  display: block;
  width: 1.5px;
  height: 48px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.6), transparent);
  animation: scrollLine 1.8s ease-in-out infinite;
}

@keyframes scrollLine {
  0%   { opacity: 1;  transform: scaleY(1)   translateY(0); }
  100% { opacity: 0;  transform: scaleY(.5)  translateY(100%); }
}

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-visual {
  position: relative;
  height: 380px;
}

.about-blob {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  border-radius: var(--radius-xl);
  z-index: 0;
}

.about-card {
  position: absolute;
  z-index: 1;
  background: var(--clr-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 140px;
  text-align: center;
  border: 1px solid var(--clr-border);
}

.card-1 { top: 24px;  left: 24px; }
.card-2 { top: 50%;  right: 24px; transform: translateY(-50%); }
.card-3 { bottom: 24px; left: 50%; transform: translateX(-50%); }

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  background: var(--gradient-btn);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.stat-label {
  font-size: .8125rem;
  color: var(--clr-muted);
  font-weight: 500;
}

.about-text .section-title,
.about-text .section-eyebrow {
  text-align: left;
}

.about-text .section-body {
  margin-bottom: 16px;
}

.about-text .btn { margin-top: 12px; }

/* ---------- Services ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: var(--transition);
  cursor: default;
}

.service-card:hover {
  background: rgba(255,255,255,.07);
  border-color: rgba(14,165,233,.4);
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0,0,0,.3);
}

.service-icon {
  width: 52px;
  height: 52px;
  color: var(--clr-accent);
  margin-bottom: 20px;
}

.service-icon svg { width: 100%; height: 100%; }

.service-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--clr-white);
  margin-bottom: 10px;
}

.service-desc {
  font-size: .9375rem;
  color: #94a3b8;
  line-height: 1.65;
}

/* ---------- Portfolio ---------- */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.portfolio-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--clr-border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  background: var(--clr-white);
}

.portfolio-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.portfolio-img {
  aspect-ratio: 16/9;
  background: var(--bg, var(--clr-primary));
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.portfolio-img svg { width: 100%; max-width: 200px; }

.portfolio-info {
  padding: 24px 20px;
}

.portfolio-tag {
  display: inline-block;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--clr-primary);
  background: #eff6ff;
  padding: 4px 10px;
  border-radius: 100px;
  margin-bottom: 10px;
}

.portfolio-title {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--clr-text);
  margin-bottom: 6px;
}

.portfolio-desc {
  font-size: .9rem;
  color: var(--clr-muted);
  line-height: 1.6;
}

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 80px;
  align-items: start;
}

.contact-info .section-title,
.contact-info .section-eyebrow {
  text-align: left;
}

.contact-info .section-body {
  margin-bottom: 32px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-details li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: .9375rem;
  color: #94a3b8;
}

.contact-details a:hover { color: var(--clr-accent); }

.contact-icon {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  color: var(--clr-accent);
}

/* ---------- Form ---------- */
.contact-form {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: .875rem;
  font-weight: 600;
  color: #cbd5e1;
}

.form-group input,
.form-group select,
.form-group textarea {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: var(--clr-white);
  font-family: var(--font-base);
  font-size: .9375rem;
  transition: border-color var(--transition);
  outline: none;
  width: 100%;
}

.form-group select option { background: var(--clr-dark-2); color: var(--clr-white); }

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #64748b;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--clr-accent);
  background: rgba(255,255,255,.09);
}

.form-group textarea { resize: vertical; min-height: 120px; }

.form-success {
  font-size: .9rem;
  color: #4ade80;
  text-align: center;
  min-height: 1.4em;
  font-weight: 500;
}

/* ---------- Footer ---------- */
.footer {
  background: #060d1a;
  color: #64748b;
  padding-top: 56px;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 32px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,.07);
}

.footer-brand p {
  font-size: .875rem;
  margin-top: 8px;
  max-width: 260px;
}

.logo-footer { color: var(--clr-white); }

.footer-links {
  display: flex;
  gap: 28px;
}

.footer-links a {
  font-size: .9375rem;
  transition: color var(--transition);
}

.footer-links a:hover { color: var(--clr-white); }

.footer-social {
  display: flex;
  gap: 16px;
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.1);
  transition: var(--transition);
  color: #64748b;
}

.footer-social a svg { width: 18px; height: 18px; }

.footer-social a:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
  background: rgba(14,165,233,.08);
}

.footer-bottom {
  text-align: center;
  padding: 20px 0;
  font-size: .85rem;
}

/* ---------- Scroll Animation Helper ---------- */
.fade-up {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity .6s ease, transform .6s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .scroll-indicator span { animation: none; }
  .fade-up { opacity: 1; transform: none; transition: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .about-visual { height: 300px; }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

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

@media (max-width: 768px) {
  :root { --nav-h: 64px; }

  .section { padding-block: 64px; }

  .nav-links {
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: rgba(15,23,42,.97);
    backdrop-filter: blur(16px);
    flex-direction: column;
    align-items: center;
    gap: 0;
    padding: 24px;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
    border-bottom: 1px solid rgba(255,255,255,.08);
    z-index: 99;
  }

  .nav-links a {
    padding: 14px 0;
    width: 100%;
    text-align: center;
    font-size: 1rem;
    border-bottom: 1px solid rgba(255,255,255,.05);
  }

  .nav-links a:last-child { border-bottom: none; margin-top: 12px; }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .hamburger { display: flex; }

  .services-grid { grid-template-columns: 1fr; }

  .portfolio-grid { grid-template-columns: 1fr; }

  .contact-form { padding: 28px 20px; }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .footer-links { flex-wrap: wrap; justify-content: center; }
  .footer-social { justify-content: center; }
}

@media (max-width: 480px) {
  .hero-cta { flex-direction: column; align-items: center; }
  .hero-cta .btn { width: 100%; max-width: 320px; }
  .about-visual { height: 260px; }
  .card-3 { left: 40%; }
}