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

:root {
  --purple: #9FA0FF;
  --purple-deep: #7B7CF5;
  --purple-dark: #3D3D8F;
  --purple-tint: #EEEEFF;
  --alice: #EEF6FB;
  --azure: #EBFCFF;
  --mint: #EFF9F0;
  --bg: #F7F7FF;
  --text: #2D2D2D;
  --text-muted: #666;
  --radius: 8px;
}

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

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

/* Navbar */
.navbar {
  background: white;
  border-bottom: 0.5px solid #e0e0f0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  text-decoration: none;
  display: flex;
  align-items: center;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 32px;
  align-items: center;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 15px;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--purple-dark);
}

.nav-cta {
  background: var(--purple) !important;
  color: white !important;
  padding: 8px 18px;
  border-radius: var(--radius);
  font-weight: 500;
}

.nav-cta:hover {
  background: var(--purple-deep) !important;
}

/* Footer */
.footer {
  background: white;
  border-top: 0.5px solid #e0e0f0;
  padding: 32px 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
  color: var(--text-muted);
}

.footer a {
  color: var(--purple);
  text-decoration: none;
}

.footer-top-btn {
  color: var(--purple);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: opacity 0.2s;
}

.footer-top-btn:hover {
  opacity: 0.75;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 11px 22px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
}

.btn-primary {
  background: var(--purple);
  color: white;
}

.btn-primary:hover {
  background: var(--purple-deep);
}

.btn-outline {
  background: transparent;
  color: var(--purple);
  border: 1.5px solid var(--purple);
}

.btn-outline:hover {
  background: var(--purple-tint);
}

/* Section spacing */
.section {
  padding: 80px 0;
}

.section-alice {
  background: var(--alice);
}

.section-mint {
  background: var(--mint);
}

.section-purple {
  background: var(--bg)
}

.section-white {
  background: white;
}

/* Typography */
.section-label {
  font-size: 16px;
  font-weight: 500;
  color: var(--purple);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

h1 {
  font-size: 48px;
  font-weight: 800;
  color: var(--purple-dark);
  line-height: 1.2;
  letter-spacing: -1px;
}

h2 {
  font-size: 36px;
  font-weight: 700;
  color: var(--purple-dark);
  line-height: 1.3;
  letter-spacing: -0.5px;
}

h3 {
  font-size: 20px;
  font-weight: 500;
  color: var(--purple-dark);
  margin-bottom: 8px;
}

p {
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1.7;
}

/* Hero */
.hero-section { text-align: center; padding: 100px 0; }
.hero-inner { max-width: 900px; margin: 0 auto; }
.hero-subtitle { font-size: 18px; margin: 20px 0 36px; color: var(--text-muted); }
.hero-btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* Section headers */
.section-header { text-align: center; margin-bottom: 52px; }
.section-subtitle { font-size: 17px; margin-top: 12px; max-width: 560px; margin-left: auto; margin-right: auto; }

/* Cards */
.cards-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; }
.card { background: white; border-radius: 12px; padding: 28px; border: 0.5px solid #e0e0f0; }
.card-icon { font-size: 36px; margin-bottom: 16px; }

/* Work */
.work-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 28px; }
.work-card { background: white; border-radius: 12px; overflow: hidden; border: 0.5px solid #e0e0f0; }
.work-card-header { padding: 40px 28px; display: flex; align-items: center; justify-content: space-between; }
.sipi-gradient { background: linear-gradient(135deg, #FF6B35 0%, #ffb347 100%); }
.bander-gradient { background: linear-gradient(135deg, #2274A5 0%, #5ba4cf 100%); }
.work-app-icon { font-size: 48px; }
.work-badges { display: flex; gap: 8px; }
.badge { background: rgba(255,255,255,0.3); color: white; font-size: 12px; font-weight: 500; padding: 4px 10px; border-radius: 20px; }
.work-card-body { padding: 24px 28px; }
.work-card-body h3 { margin-bottom: 10px; }
.work-tech { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.tech-tag { background: var(--purple-tint); color: var(--purple-dark); font-size: 12px; font-weight: 500; padding: 4px 10px; border-radius: 20px; }
.work-links { display: flex; gap: 16px; margin-top: 16px; }
.work-link { color: var(--purple); font-size: 14px; font-weight: 500; text-decoration: none; }
.work-link:hover { color: var(--purple-deep); }

/* Contact form */
.contact-form-wrapper { max-width: 560px; margin: 0 auto; }
.contact-form { display: flex; flex-direction: column; gap: 16px; }
.form-group input, .form-group textarea {
  width: 100%; padding: 12px 16px; border: 1px solid #d0d0e8;
  border-radius: var(--radius); font-size: 15px; font-family: 'Inter', sans-serif;
  background: white; color: var(--text); outline: none; transition: border-color 0.2s;
}
.form-group input:focus, .form-group textarea:focus { border-color: var(--purple); }
.form-group textarea { resize: vertical; }
.form-submit { width: 100%; justify-content: center; }
.form-feedback { margin-top: 16px; font-size: 18px; font-weight: 600; min-height: 20px; text-align: center;
}

.form-label {
  display: block;
  font-size: 14px;
  color: var(--text-muted);
  margin: 0 0 8px 4px;
}

.form-checkboxes {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  margin: 0 0 10px 4px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  color: var(--text);
  cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--purple);
  cursor: pointer;
}

.contact-form select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid #d0d0e8;
  border-radius: var(--radius);
  font-size: 15px;
  font-family: 'Inter', sans-serif;
  background: white;
  color: var(--text-muted);
  outline: none;
  transition: border-color 0.2s;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23888' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
}

.contact-form select:focus { border-color: var(--purple); }

/* Hamburger */
.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(--purple-dark); border-radius: 2px; transition: all 0.3s; }
.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); }

/* Mobile menu */
.mobile-menu { display: none; flex-direction: column; gap: 4px; padding: 16px 24px 24px; background: white; border-top: 0.5px solid #e0e0f0; }
.mobile-menu.open { display: flex; }
.mobile-link { font-size: 16px; color: var(--text-muted); text-decoration: none; padding: 10px 0; border-bottom: 0.5px solid #f0f0f8; }
.mobile-lang { display: flex; gap: 8px; align-items: center; padding: 12px 0; }
.mobile-cta { margin-top: 8px; text-align: center; }

/* Lang toggle */
.lang-toggle { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--text-muted); }
.lang-btn { color: var(--text-muted); text-decoration: none; font-size: 13px; font-weight: 500; transition: color 0.2s; }
.lang-btn.active { color: var(--purple); }
.lang-btn:hover { color: var(--purple-dark); }

.hero-split {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  text-align: left;
}

.hero-text {
  flex: 1;
  max-width: 560px;
}

.hero-btns {
  justify-content: flex-start;
}

.hero-image {
  flex: 0 0 auto;
  display: flex;
  justify-content: center;
}

.phone-mockup {
  height: 310px;
  width: auto;
  border-radius: 24px;
}

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

.process-card {
  background: white;
  border-radius: 12px;
  padding: 32px 28px;
  border: 0.5px solid #e0e0f0;
  position: relative;
  overflow: hidden;
}

.process-number {
  font-size: 64px;
  font-weight: 800;
  color: var(--purple-tint);
  line-height: 1;
  margin-bottom: 16px;
  font-family: sans-serif;
}

.process-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--purple-dark);
  margin-bottom: 12px;
}

.process-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

@media (max-width: 768px) {
  h1 { font-size: 32px; }
  h2 { font-size: 26px; }
  .nav-links { display: none; }
  .footer-inner { flex-direction: column; gap: 8px; text-align: center; }
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .hero-section { padding: 60px 0; }
  .footer-inner { flex-direction: column; gap: 8px; text-align: center; }

  .hero-split {
    flex-direction: column;
    text-align: center;
  }
  .hero-btns {
    justify-content: center;
  }
  .hero-image {
    order: -1;
  }
  .phone-mockup {
    height: 320px;
  }
  .process-grid {
    grid-template-columns: 1fr;
  }
}