/* ===========================
   Design Tokens
   =========================== */
:root {
  --color-primary:       #2563eb;
  --color-primary-light: #eff6ff;
  --color-primary-dark:  #1d4ed8;
  --color-text:          #1e293b;
  --color-text-muted:    #64748b;
  --color-bg:            #ffffff;
  --color-bg-alt:        #f8fafc;
  --color-bg-dark:       #1e293b;
  --color-bg-footer:     #0f172a;
  --color-border:        #e2e8f0;
  --font-sans:           system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --radius:              8px;
  --radius-lg:           12px;
  --max-width:           1100px;
  --section-padding:     80px 24px;
}

/* ===========================
   Reset
   =========================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: var(--font-sans); color: var(--color-text); background: var(--color-bg); line-height: 1.6; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

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

.section-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.section-heading {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  transition: opacity 0.15s;
  border: none;
}
.btn:hover { opacity: 0.88; }
.btn-primary { background: var(--color-primary); color: #fff; }

/* ===========================
   Navigation
   =========================== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  border-bottom: 2px solid var(--color-primary);
  padding: 0 24px;
}
.nav__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.nav__logo {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-primary);
  display: flex;
  align-items: center;
}
.nav__logo img { height: 28px; width: auto; }
.nav__links { display: flex; gap: 32px; }
.nav__links a {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  font-weight: 500;
  transition: color 0.15s;
}
.nav__links a:hover { color: var(--color-primary); }

/* ===========================
   Hero
   =========================== */
.hero {
  background: linear-gradient(180deg, var(--color-primary-light) 0%, var(--color-bg) 100%);
  padding: var(--section-padding);
  text-align: center;
}
.hero__eyebrow {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 16px;
}
.hero__heading {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 900;
  line-height: 1.1;
  color: var(--color-text);
  margin-bottom: 20px;
}
.hero__subheading {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  max-width: 520px;
  margin: 0 auto 32px;
}
.hero__screenshot {
  margin: 48px auto 0;
  max-width: 260px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.10);
}
.hero__screenshot img { width: 100%; }

/* ===========================
   Features
   =========================== */
.features {
  background: var(--color-bg);
  padding: var(--section-padding);
  text-align: center;
}
.features__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 40px;
  text-align: left;
}
.feature-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
}
.feature-card__icon { font-size: 1.8rem; margin-bottom: 12px; }
.feature-card__title { font-size: 1rem; font-weight: 700; color: var(--color-text); margin-bottom: 6px; }
.feature-card__desc { font-size: 0.875rem; color: var(--color-text-muted); }

/* ===========================
   How It Works
   =========================== */
.how-it-works {
  background: var(--color-bg-alt);
  padding: var(--section-padding);
  text-align: center;
}
.steps {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
  margin-top: 48px;
  flex-wrap: wrap;
}
.step {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 160px;
}
.step__number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-weight: 800;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}
.step__label { font-size: 0.95rem; font-weight: 600; color: var(--color-text); }
.step__arrow {
  font-size: 1.5rem;
  color: var(--color-border);
  padding-top: 12px;
  margin: 0 8px;
  flex-shrink: 0;
}

/* ===========================
   Language Callout
   =========================== */
.lang-callout {
  background: var(--color-primary-light);
  border-top: 1px solid #bfdbfe;
  border-bottom: 1px solid #bfdbfe;
  padding: 24px;
  text-align: center;
}
.lang-callout__text { font-size: 1rem; font-weight: 600; color: var(--color-text); }
.lang-callout__text span { color: var(--color-primary); }

/* ===========================
   Testimonials
   =========================== */
.testimonials {
  background: var(--color-bg);
  padding: var(--section-padding);
  text-align: center;
}
.testimonials__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 40px;
  text-align: left;
}
.testimonial-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
}
.testimonial-card__quote {
  font-size: 0.95rem;
  font-style: italic;
  color: var(--color-text-muted);
  margin-bottom: 16px;
  line-height: 1.6;
}
.testimonial-card__quote::before { content: '\201C'; }
.testimonial-card__quote::after  { content: '\201D'; }
.testimonial-card__author { font-size: 0.85rem; font-weight: 700; color: var(--color-text); }

/* ===========================
   Pricing
   =========================== */
.pricing {
  background: var(--color-bg-alt);
  padding: var(--section-padding);
  text-align: center;
}
.pricing__body {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  margin: 0 auto 32px;
  max-width: 480px;
}

/* ===========================
   App Download
   =========================== */
.app-download {
  background: var(--color-bg-dark);
  padding: var(--section-padding);
  text-align: center;
}
.app-download__heading {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
}
.app-download__sub { font-size: 1rem; color: #94a3b8; margin-bottom: 32px; }
.app-download__badges { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.badge-link { display: inline-block; }
.badge-link img { height: 48px; width: auto; border-radius: 8px; }

/* ===========================
   Footer
   =========================== */
.footer {
  background: var(--color-bg-footer);
  padding: 24px;
}
.footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.footer__copy { font-size: 0.85rem; color: #475569; }
.footer__links { display: flex; gap: 24px; }
.footer__links a { font-size: 0.85rem; color: var(--color-text-muted); transition: color 0.15s; }
.footer__links a:hover { color: #94a3b8; }

/* ===========================
   Responsive
   =========================== */
@media (min-width: 768px) {
  .features__grid { grid-template-columns: repeat(3, 1fr); }
  .testimonials__grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 767px) {
  .nav__links { display: none; }
  .hero__screenshot { display: none; }
  .step__arrow { display: none; }
  .steps { gap: 24px; flex-direction: column; align-items: center; }
}