/* ============================================
   Convertly AI — Base / Variables
   ============================================ */
:root {
  --primary: #6C5CE7;
  --primary-dark: #4834d4;
  --accent: #00D4FF;
  --dark: #0B0E1A;
  --dark-2: #121629;
  --light: #F7F8FC;
  --white: #FFFFFF;
  --text: #1A1A2E;
  --text-muted: #64748B;
  --border: #E7E9F3;
  --success: #22C55E;
  --error: #EF4444;

  --font-head: 'Sora', sans-serif;
  --font-body: 'Inter', sans-serif;

  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 10px 30px rgba(20, 20, 60, 0.08);
  --shadow-lg: 0 20px 60px rgba(20, 20, 60, 0.14);
  --container-w: 1200px;
}

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

html { scroll-behavior: smooth; }

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

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

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

ul { list-style: none; }

h1, h2, h3, h4 { font-family: var(--font-head); font-weight: 700; line-height: 1.2; }

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

.gradient-text {
  background: linear-gradient(90deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(90deg, var(--primary), #8A6FF0);
  color: var(--white);
  box-shadow: 0 8px 24px rgba(108, 92, 231, 0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(108, 92, 231, 0.45); }
.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1.5px solid var(--border);
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }
.btn-sm { padding: 10px 20px; font-size: 0.875rem; }
.btn-block { width: 100%; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; transform: none !important; }

/* ============================================
   Header
   ============================================ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(247, 248, 252, 0.75);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: background 0.3s ease, border-color 0.3s ease;
}
.site-header.scrolled {
  background: rgba(255, 255, 255, 0.9);
  border-bottom-color: var(--border);
  box-shadow: 0 4px 20px rgba(20,20,60,0.05);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text);
}
.logo em { font-style: normal; color: var(--primary); }

.main-nav ul { display: flex; gap: 32px; }
.nav-link {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-muted);
  position: relative;
  padding: 6px 0;
  transition: color 0.2s ease;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transition: width 0.25s ease;
}
.nav-link:hover, .nav-link.active { color: var(--text); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }

.header-actions { display: flex; align-items: center; gap: 16px; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  cursor: pointer;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
  margin: 0 auto;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================
   Hero
   ============================================ */
.hero {
  position: relative;
  padding: 160px 0 100px;
  overflow: hidden;
  background: var(--dark);
  color: var(--white);
}
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.grid-overlay {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 30% 20%, black 0%, transparent 70%);
}
.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.45;
}
.blob-1 {
  width: 500px; height: 500px;
  background: var(--primary);
  top: -150px; left: -100px;
  animation: float1 12s ease-in-out infinite;
}
.blob-2 {
  width: 420px; height: 420px;
  background: var(--accent);
  bottom: -180px; right: -120px;
  animation: float2 14s ease-in-out infinite;
}
@keyframes float1 { 0%,100% { transform: translate(0,0); } 50% { transform: translate(40px, 30px); } }
@keyframes float2 { 0%,100% { transform: translate(0,0); } 50% { transform: translate(-30px, -40px); } }

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 20px;
}
.hero h1 {
  font-size: clamp(2.2rem, 4.5vw, 3.6rem);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}
.hero-sub {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.72);
  max-width: 560px;
  margin-bottom: 32px;
}
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 28px; }
.hero .btn-outline { color: var(--white); border-color: rgba(255,255,255,0.25); }
.hero .btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.hero-meta-item {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.9rem; color: rgba(255,255,255,0.55);
}
.hero-meta-item i { color: var(--accent); }

.hero-visual { position: relative; height: 420px; display: none; }
.hero-orb {
  position: absolute;
  top: 50%; left: 50%;
  width: 280px; height: 280px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, rgba(108,92,231,0.55), rgba(0,212,255,0.15) 60%, transparent 75%);
  filter: blur(2px);
  animation: pulse 5s ease-in-out infinite;
}
@keyframes pulse { 0%,100% { transform: translate(-50%,-50%) scale(1); } 50% { transform: translate(-50%,-50%) scale(1.06); } }

.floating-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  backdrop-filter: blur(10px);
  border-radius: 14px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--white);
  animation: bob 6s ease-in-out infinite;
}
.floating-card i { color: var(--accent); font-size: 1.1rem; }
.card-1 { top: 8%; left: 4%; animation-delay: 0s; }
.card-2 { top: 30%; right: 0%; animation-delay: 1.2s; }
.card-3 { bottom: 22%; left: 0%; animation-delay: 2.4s; }
.card-4 { bottom: 2%; right: 10%; animation-delay: 3.6s; }
@keyframes bob { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-14px); } }

/* ============================================
   Sections (shared)
   ============================================ */
.section { padding: 110px 0; }
.section-alt { background: var(--white); }
.section-head { max-width: 640px; margin: 0 auto 56px; text-align: center; }
.section-tag {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 12px;
}
.section-head h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); margin-bottom: 14px; }
.section-head p { color: var(--text-muted); font-size: 1.05rem; }

.grid { display: grid; gap: 24px; }

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

/* ============================================
   Services
   ============================================ */
.services-grid { grid-template-columns: repeat(3, 1fr); }
.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.card-icon {
  width: 52px; height: 52px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(108,92,231,0.12), rgba(0,212,255,0.12));
  color: var(--primary);
  font-size: 1.3rem;
  margin-bottom: 18px;
}
.service-card h3 { font-size: 1.1rem; margin-bottom: 10px; }
.service-card p { color: var(--text-muted); font-size: 0.95rem; }

/* ============================================
   Technologies
   ============================================ */
.tech-groups { display: flex; flex-direction: column; gap: 44px; }
.tech-group h3 {
  display: flex; align-items: center; gap: 10px;
  font-size: 1.05rem;
  margin-bottom: 20px;
  color: var(--text);
}
.tech-group h3 i { color: var(--primary); }
.tech-icons {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 16px;
}
.tech-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 18px 10px;
  background: var(--light);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  text-align: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.tech-item:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--primary); }
.tech-item i { font-size: 2rem; color: var(--text); }
.tech-item span { font-size: 0.78rem; font-weight: 600; color: var(--text-muted); }

/* ============================================
   Projects
   ============================================ */
.projects-grid { grid-template-columns: repeat(2, 1fr); }
.project-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.project-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.project-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.project-icon {
  width: 56px; height: 56px;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: var(--white);
  font-size: 1.4rem;
  flex-shrink: 0;
}
.project-status {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(34, 197, 94, 0.12);
  color: #16A34A;
  white-space: nowrap;
}
.project-card h3 { font-size: 1.3rem; }
.project-tagline { color: var(--primary); font-weight: 600; font-size: 0.9rem; }
.project-card p.project-desc { color: var(--text-muted); font-size: 0.95rem; }
.project-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 4px; }
.project-tags span {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--light);
  border: 1px solid var(--border);
  padding: 5px 12px;
  border-radius: 999px;
}
.project-link {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  color: var(--primary);
  font-size: 0.95rem;
}
.project-link i { transition: transform 0.2s ease; }
.project-card:hover .project-link i { transform: translateX(4px); }

.project-card.add-more {
  align-items: center;
  justify-content: center;
  text-align: center;
  border: 2px dashed var(--border);
  background: transparent;
  color: var(--text-muted);
}
.project-card.add-more i { font-size: 1.8rem; color: var(--primary); margin-bottom: 10px; }

/* ============================================
   About
   ============================================ */
.about-inner {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 56px;
  align-items: center;
}
.about-content h2 { margin-bottom: 18px; font-size: clamp(1.6rem, 3vw, 2.2rem); }
.about-content p { color: var(--text-muted); margin-bottom: 16px; font-size: 1.02rem; }
.about-points { margin-top: 24px; display: grid; gap: 14px; }
.about-point { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 0.95rem; }
.about-point i { color: var(--success); }

.about-visual { display: flex; justify-content: center; }
.about-card {
  background: linear-gradient(135deg, var(--primary), #8A6FF0);
  color: var(--white);
  padding: 44px 36px;
  border-radius: 24px;
  max-width: 340px;
  box-shadow: var(--shadow-lg);
}
.about-card i { font-size: 2.2rem; margin-bottom: 16px; color: var(--accent); }
.about-card h4 { font-size: 1.3rem; margin-bottom: 12px; }
.about-card p { color: rgba(255,255,255,0.85); font-size: 0.95rem; }

/* ============================================
   Contact
   ============================================ */
.contact-inner {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 40px;
}
.contact-info { display: flex; flex-direction: column; gap: 18px; }
.contact-info-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
}
.contact-info-card i {
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(108,92,231,0.12), rgba(0,212,255,0.12));
  color: var(--primary);
  font-size: 1.05rem;
  flex-shrink: 0;
}
.contact-info-card h4 { font-size: 0.95rem; margin-bottom: 4px; }
.contact-info-card a, .contact-info-card span { color: var(--text-muted); font-size: 0.92rem; }
.contact-info-card a:hover { color: var(--primary); }

.social-row { display: flex; gap: 12px; margin-top: 8px; }
.social-icon {
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: var(--white);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 1.1rem;
  transition: all 0.2s ease;
}
.social-icon:hover { background: linear-gradient(135deg, var(--primary), var(--accent)); color: var(--white); border-color: transparent; transform: translateY(-3px); }

.contact-form {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 8px; }
.form-group input, .form-group textarea {
  width: 100%;
  padding: 13px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.95rem;
  background: var(--light);
  transition: border-color 0.2s ease, background 0.2s ease;
  resize: vertical;
}
.form-group input:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  background: var(--white);
}
.hp-field { position: absolute; left: -9999px; opacity: 0; height: 0; margin: 0; }
.form-status { margin-top: 16px; font-size: 0.9rem; font-weight: 600; min-height: 20px; }
.form-status.success { color: var(--success); }
.form-status.error { color: var(--error); }

/* ============================================
   Footer
   ============================================ */
.site-footer { background: var(--dark); color: rgba(255,255,255,0.7); padding-top: 72px; }
.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand .logo { color: var(--white); margin-bottom: 14px; }
.footer-brand p { font-size: 0.9rem; margin-bottom: 20px; max-width: 280px; }
.footer-brand .social-icon { background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.12); color: var(--white); }
.footer-links h4, .footer-contact h4 { color: var(--white); font-size: 1rem; margin-bottom: 18px; }
.footer-links ul { display: flex; flex-direction: column; gap: 12px; }
.footer-links a { font-size: 0.9rem; transition: color 0.2s ease; }
.footer-links a:hover { color: var(--accent); }
.footer-contact p { display: flex; align-items: flex-start; gap: 10px; font-size: 0.9rem; margin-bottom: 14px; }
.footer-contact i { color: var(--accent); margin-top: 3px; }
.footer-bottom { padding: 24px 0; text-align: center; font-size: 0.85rem; }

/* ============================================
   Floating buttons
   ============================================ */
.back-to-top {
  position: fixed;
  bottom: 28px; right: 28px;
  width: 46px; height: 46px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: var(--white);
  border: none;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-lg);
  opacity: 0; visibility: hidden;
  transform: translateY(10px);
  transition: all 0.3s ease;
  z-index: 999;
}
.back-to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }

.whatsapp-float {
  position: fixed;
  bottom: 28px; left: 28px;
  width: 54px; height: 54px;
  border-radius: 50%;
  background: #25D366;
  color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem;
  box-shadow: 0 10px 26px rgba(37,211,102,0.45);
  z-index: 999;
  animation: wa-pulse 2.4s ease-in-out infinite;
}
@keyframes wa-pulse { 0%,100% { box-shadow: 0 10px 26px rgba(37,211,102,0.45); } 50% { box-shadow: 0 10px 26px rgba(37,211,102,0.75); } }

/* ============================================
   Responsive
   ============================================ */
@media (min-width: 992px) {
  .hero-visual { display: block; }
}

@media (max-width: 991px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .projects-grid { grid-template-columns: 1fr; }
  .about-inner { grid-template-columns: 1fr; }
  .about-visual { order: -1; }
  .contact-inner { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 860px) {
  .main-nav {
    position: fixed;
    top: 76px; left: 0; right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--border);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    box-shadow: var(--shadow);
  }
  .main-nav.open { max-height: 400px; }
  .main-nav ul { flex-direction: column; gap: 0; padding: 8px 24px 16px; }
  .main-nav li { border-bottom: 1px solid var(--border); }
  .main-nav a { display: block; padding: 14px 0; }
  .nav-toggle { display: flex; }
  .header-actions .btn { display: none; }
}

@media (max-width: 640px) {
  .section { padding: 72px 0; }
  .hero { padding: 130px 0 64px; }
  .services-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; text-align: left; }
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { width: 100%; }
  .whatsapp-float { width: 48px; height: 48px; font-size: 1.4rem; bottom: 20px; left: 20px; }
  .back-to-top { bottom: 20px; right: 20px; }
}