/* ═══════════════════════════════════════════
   MARKETLENS — styles.css
   Brand: Navy #1C2B5E | Sky Blue #4DAEE8 | Gray #808B96
   ═══════════════════════════════════════════ */

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

:root {
  --navy:        #1C2B5E;
  --navy-dark:   #111D42;
  --navy-mid:    #2D4080;
  --sky:         #4DAEE8;
  --sky-light:   #89CFF0;
  --gray:        #808B96;
  --gray-light:  #F4F6FA;
  --gray-mid:    #E2E8F0;
  --white:       #FFFFFF;
  --text:        #1A2035;
  --text-muted:  #5A6478;
  --shadow-sm:   0 2px 8px rgba(28,43,94,.08);
  --shadow-md:   0 8px 32px rgba(28,43,94,.12);
  --shadow-lg:   0 20px 60px rgba(28,43,94,.18);
  --radius:      12px;
  --radius-lg:   20px;
  --transition:  .3s cubic-bezier(.4,0,.2,1);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5 {
  font-family: 'Manrope', sans-serif;
  line-height: 1.2;
  font-weight: 800;
}

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

/* ── Container ── */
.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Accent ── */
.accent { color: var(--sky); }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 8px;
  font-weight: 600;
  font-size: .95rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--sky);
  color: var(--white);
  border-color: var(--sky);
}
.btn-primary:hover {
  background: #3a9fd8;
  border-color: #3a9fd8;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(77,174,232,.35);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,.5);
}
.btn-outline:hover {
  background: rgba(255,255,255,.1);
  border-color: var(--white);
  transform: translateY(-2px);
}

.btn-lg { padding: 16px 32px; font-size: 1rem; border-radius: 10px; }
.btn-block { width: 100%; justify-content: center; font-size: 1rem; padding: 16px; }

/* ── Section shared ── */
.section { padding: 100px 0; }

.section-header {
  text-align: center;
  max-width: 580px;
  margin: 0 auto 64px;
}
.section-header h2 { font-size: clamp(2rem, 4vw, 2.75rem); margin-bottom: 16px; }
.section-header p { color: var(--text-muted); font-size: 1.1rem; }

.section-tag {
  display: inline-block;
  background: rgba(77,174,232,.12);
  color: var(--sky);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 50px;
  margin-bottom: 16px;
}

/* ═══ NAVBAR ═══ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition);
  background: transparent;
}
.navbar.scrolled {
  background: var(--white);
  box-shadow: var(--shadow-sm);
  padding: 12px 0;
}

.nav-inner {
  display: flex;
  align-items: center;
  gap: 40px;
}

.nav-logo img { height: 48px; transition: var(--transition); filter: brightness(0) invert(1); }
.navbar.scrolled .nav-logo img { height: 42px; filter: none; }

.nav-links {
  display: flex;
  gap: 32px;
  margin-left: auto;
}
.nav-links a {
  font-size: .9rem;
  font-weight: 500;
  color: var(--white);
  transition: var(--transition);
  position: relative;
}
.navbar.scrolled .nav-links a { color: var(--text); }

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0; right: 0;
  height: 2px;
  background: var(--sky);
  transform: scaleX(0);
  transition: var(--transition);
}
.nav-links a:hover::after { transform: scaleX(1); }
.nav-links a:hover { color: var(--sky); }

.nav-cta { margin-left: 16px; }
.navbar:not(.scrolled) .nav-cta { background: rgba(255,255,255,.15); border-color: rgba(255,255,255,.4); color: var(--white); }
.navbar:not(.scrolled) .nav-cta:hover { background: var(--sky); border-color: var(--sky); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
}
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}
.navbar.scrolled .hamburger span { background: var(--navy); }

/* ═══ HERO ═══ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 50%, var(--navy-mid) 100%);
  overflow: hidden;
  padding: 120px 0 80px;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 60% at 80% 20%, rgba(77,174,232,.18) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 10% 80%, rgba(77,174,232,.10) 0%, transparent 60%);
}

/* animated grid */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero-bg-overlay { position: absolute; inset: 0; }

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 780px;
}

.hero-badge {
  display: inline-block;
  background: rgba(77,174,232,.2);
  border: 1px solid rgba(77,174,232,.4);
  color: var(--sky-light);
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: 8px 18px;
  border-radius: 50px;
  margin-bottom: 28px;
  animation: fadeDown .8s ease both;
}

.hero-content h1 {
  font-size: clamp(3rem, 7vw, 5.5rem);
  color: var(--white);
  margin-bottom: 24px;
  animation: fadeDown .8s .1s ease both;
  letter-spacing: -.02em;
}

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: rgba(255,255,255,.75);
  max-width: 600px;
  margin: 0 auto 40px;
  animation: fadeDown .8s .2s ease both;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 64px;
  animation: fadeDown .8s .3s ease both;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
  animation: fadeDown .8s .4s ease both;
}
.stat { text-align: center; }
.stat-num {
  display: block;
  font-family: 'Manrope', sans-serif;
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1;
}
.stat-label {
  font-size: .8rem;
  color: rgba(255,255,255,.55);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-top: 4px;
  display: block;
}
.stat-divider {
  width: 1px; height: 48px;
  background: rgba(255,255,255,.2);
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 32px; left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,.4);
  font-size: .75rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  animation: fadeDown 1s .8s ease both;
}
.scroll-arrow {
  width: 20px; height: 20px;
  border-right: 2px solid rgba(255,255,255,.3);
  border-bottom: 2px solid rgba(255,255,255,.3);
  transform: rotate(45deg);
  animation: bounce 1.5s infinite;
}

/* ═══ SERVICES ═══ */
.services { background: var(--gray-light); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.service-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  border: 1px solid var(--gray-mid);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--sky);
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.service-card:hover::before { transform: scaleX(1); }

.service-card--featured {
  background: var(--navy);
  border-color: var(--navy);
  color: var(--white);
}
.service-card--featured::before { background: var(--sky); transform: scaleX(1); }
.service-card--featured p,
.service-card--featured .service-list li { color: rgba(255,255,255,.7); }
.service-card--featured .service-link { color: var(--sky-light); }
.service-card--featured h3 { color: var(--white); }

.featured-badge {
  position: absolute;
  top: 20px; right: 20px;
  background: var(--sky);
  color: var(--white);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 50px;
}

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

.service-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
  color: var(--navy);
}
.service-card--featured h3 { color: var(--white); }

.service-card p {
  color: var(--text-muted);
  font-size: .95rem;
  margin-bottom: 20px;
}

.service-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 24px;
}
.service-list li {
  font-size: .88rem;
  color: var(--text-muted);
  padding-left: 18px;
  position: relative;
}
.service-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--sky);
  font-weight: 700;
}

.service-link {
  font-size: .9rem;
  font-weight: 600;
  color: var(--navy);
  transition: var(--transition);
}
.service-link:hover { color: var(--sky); letter-spacing: .02em; }

/* ═══ WHY US ═══ */
.why-us { background: var(--white); }

.why-us-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.why-us-left h2 { font-size: clamp(2rem, 4vw, 2.75rem); margin-bottom: 20px; }
.why-us-left p { color: var(--text-muted); font-size: 1.05rem; margin-bottom: 36px; }

.why-us-right {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.why-card {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  padding: 24px;
  border-radius: var(--radius);
  border: 1px solid var(--gray-mid);
  transition: var(--transition);
}
.why-card:hover {
  border-color: var(--sky);
  box-shadow: var(--shadow-sm);
  transform: translateX(6px);
}

.why-icon { font-size: 1.75rem; flex-shrink: 0; line-height: 1; }
.why-card h4 { font-size: 1rem; font-weight: 700; margin-bottom: 6px; color: var(--navy); }
.why-card p { font-size: .9rem; color: var(--text-muted); }

/* ═══ HOW IT WORKS ═══ */
.how-it-works { background: var(--navy-dark); }
.how-it-works .section-tag { background: rgba(77,174,232,.2); color: var(--sky-light); }
.how-it-works .section-header h2 { color: var(--white); }
.how-it-works .section-header p { color: rgba(255,255,255,.55); }

.steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
  position: relative;
}

.step {
  flex: 1;
  text-align: center;
  padding: 0 20px;
}

.step-number {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: rgba(77,174,232,.15);
  border: 2px solid var(--sky);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Manrope', sans-serif;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--sky);
  margin: 0 auto 24px;
}

.step-content h3 { color: var(--white); font-size: 1.15rem; margin-bottom: 12px; }
.step-content p { color: rgba(255,255,255,.55); font-size: .9rem; }

.step-connector {
  flex-shrink: 0;
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, var(--sky), rgba(77,174,232,.3));
  margin-top: 32px;
  position: relative;
}
.step-connector::after {
  content: '';
  position: absolute;
  right: -6px; top: -5px;
  border: 6px solid transparent;
  border-left-color: rgba(77,174,232,.6);
}

/* ═══ WHO WE SERVE ═══ */
.who-we-serve { background: var(--gray-light); }

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

.audience-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  border: 1px solid var(--gray-mid);
  text-align: center;
  transition: var(--transition);
}
.audience-card:hover {
  border-color: var(--sky);
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.audience-icon { font-size: 3rem; margin-bottom: 20px; }
.audience-card h3 { font-size: 1.2rem; color: var(--navy); margin-bottom: 14px; }
.audience-card p { color: var(--text-muted); font-size: .95rem; }

/* ═══ CONTACT ═══ */
.contact { background: var(--white); }

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 80px;
  align-items: start;
}

.contact-left .section-tag { display: inline-block; margin-bottom: 16px; }
.contact-left h2 { font-size: clamp(2rem, 3.5vw, 2.75rem); margin-bottom: 20px; }
.contact-left p { color: var(--text-muted); font-size: 1.05rem; margin-bottom: 36px; }

.contact-details { display: flex; flex-direction: column; gap: 16px; }
.contact-item {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: .95rem;
  color: var(--text-muted);
}
.contact-icon { font-size: 1.2rem; }

/* Form */
.contact-form {
  background: var(--gray-light);
  padding: 40px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-mid);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.form-group label {
  font-size: .85rem;
  font-weight: 600;
  color: var(--navy);
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 12px 16px;
  border: 1.5px solid var(--gray-mid);
  border-radius: 8px;
  font-size: .95rem;
  font-family: 'Inter', sans-serif;
  color: var(--text);
  background: var(--white);
  transition: var(--transition);
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--sky);
  box-shadow: 0 0 0 3px rgba(77,174,232,.15);
}
.form-group textarea { resize: vertical; }
.form-group select { appearance: none; cursor: pointer; }

.form-note {
  text-align: center;
  font-size: .8rem;
  color: var(--gray);
  margin-top: 12px;
}

/* ═══ FOOTER ═══ */
.footer {
  background: var(--navy-dark);
  color: rgba(255,255,255,.7);
  padding-top: 64px;
}

.footer-inner {
  display: flex;
  gap: 80px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.footer-brand { flex: 1; }
.footer-logo { height: 52px; margin-bottom: 16px; filter: brightness(0) invert(1) opacity(0.85); }
.footer-brand p { font-size: .9rem; color: rgba(255,255,255,.45); }

.footer-links {
  display: flex;
  gap: 64px;
}

.footer-col h5 {
  color: var(--white);
  font-size: .85rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 12px; }
.footer-col a {
  font-size: .88rem;
  color: rgba(255,255,255,.5);
  transition: var(--transition);
}
.footer-col a:hover { color: var(--sky-light); }

.footer-bottom {
  padding: 20px 0;
}
.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: .8rem;
  color: rgba(255,255,255,.3);
}
.footer-legal { display: flex; gap: 24px; }
.footer-legal a { color: rgba(255,255,255,.3); transition: var(--transition); }
.footer-legal a:hover { color: rgba(255,255,255,.6); }

/* ═══ ANIMATIONS ═══ */
@keyframes fadeDown {
  from { opacity: 0; transform: translateY(-20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes bounce {
  0%, 100% { transform: rotate(45deg) translateY(0); }
  50%       { transform: rotate(45deg) translateY(6px); }
}

/* scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ═══ RESPONSIVE ═══ */
@media (max-width: 1024px) {
  .why-us-inner { grid-template-columns: 1fr; gap: 48px; }
  .contact-inner { grid-template-columns: 1fr; gap: 48px; }
  .steps { flex-direction: column; align-items: center; gap: 32px; }
  .step-connector { width: 2px; height: 40px; background: linear-gradient(180deg, var(--sky), rgba(77,174,232,.3)); }
  .step-connector::after {
    right: -5px; top: auto; bottom: -6px;
    border-left-color: transparent;
    border-top-color: rgba(77,174,232,.6);
  }
  .audience-grid { grid-template-columns: 1fr 1fr; }
  .footer-inner { flex-direction: column; gap: 40px; }
  .footer-links { gap: 40px; }
}

@media (max-width: 768px) {
  .section { padding: 72px 0; }
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }

  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--navy-dark);
    justify-content: center;
    align-items: center;
    gap: 32px;
    font-size: 1.3rem;
    z-index: 999;
  }
  .nav-links.open a { color: var(--white); }

  .hero-stats { gap: 24px; }
  .stat-num { font-size: 1.8rem; }
  .services-grid { grid-template-columns: 1fr; }
  .audience-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .contact-form { padding: 28px 20px; }
  .footer-links { flex-direction: column; gap: 32px; }
  .footer-bottom .container { flex-direction: column; gap: 12px; text-align: center; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; align-items: stretch; }
  .btn-lg { text-align: center; justify-content: center; }
  .hero-stats { flex-direction: column; gap: 20px; }
  .stat-divider { width: 60px; height: 1px; }
}