/* ==========================================================================
   FOCUS.EXE — Mock SaaS Landing Page
   Modern tech startup aesthetic. Clean, bold, gradient-heavy.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root {
  --bg:        #0a0a0f;
  --bg-card:   #12121a;
  --bg-subtle: #16161f;
  --white:     #ffffff;
  --gray-100:  #e4e4e7;
  --gray-200:  #a1a1aa;
  --gray-300:  #71717a;
  --gray-400:  #52525b;
  --purple:    #8b5cf6;
  --purple-glow: rgba(139, 92, 246, 0.3);
  --blue:      #3b82f6;
  --pink:      #ec4899;
  --green:     #22c55e;
  --red:       #ef4444;
  --orange:    #f97316;
  --gradient:  linear-gradient(135deg, var(--purple), var(--blue), var(--pink));
  --gradient-subtle: linear-gradient(135deg, rgba(139,92,246,0.1), rgba(59,130,246,0.1), rgba(236,72,153,0.1));

  --display: 'Inter', -apple-system, sans-serif;
  --mono:    'JetBrains Mono', 'Fira Code', monospace;

  --maxw: 1200px;
  --radius: 12px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--gray-100);
  font-family: var(--display);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 clamp(1.2rem, 4vw, 2rem);
}

a { color: var(--purple); text-decoration: none; }
a:hover { color: var(--pink); }

/* ==================== HEADER ==================== */

header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem clamp(1.2rem, 4vw, 2rem);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.logo-icon { font-size: 1.5rem; }
.logo-text {
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--white);
  letter-spacing: -0.02em;
}
.logo-ext {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.8rem;
}
.nav a {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--gray-200);
  transition: color 150ms;
}
.nav a:hover { color: var(--white); }
.nav-cta {
  background: var(--gradient) !important;
  -webkit-background-clip: unset !important;
  -webkit-text-fill-color: unset !important;
  color: var(--white) !important;
  padding: 0.5rem 1.2rem;
  border-radius: 8px;
  font-weight: 600 !important;
}

.mobile-menu {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--white);
}

/* ==================== HERO ==================== */

.hero {
  padding: clamp(4rem, 12vh, 8rem) 0 clamp(3rem, 8vh, 5rem);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(139,92,246,0.15) 0%, transparent 70%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  z-index: 1;
}
.hero-badge {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--purple);
  margin-bottom: 2rem;
  display: inline-block;
  padding: 0.4rem 1rem;
  border: 1px solid rgba(139,92,246,0.3);
  border-radius: 100px;
  background: rgba(139,92,246,0.08);
}
.hero-title {
  font-weight: 900;
  font-size: clamp(2.8rem, 7vw, 4.5rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
  color: var(--white);
}
.hero-title em {
  font-style: normal;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: 1.15rem;
  color: var(--gray-200);
  max-width: 55ch;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 3.5rem;
}

/* Stats */
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 3rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}
.stat { text-align: center; }
.stat-num {
  display: block;
  font-weight: 800;
  font-size: 1.8rem;
  color: var(--white);
  line-height: 1.2;
}
.stat-label {
  font-size: 0.75rem;
  color: var(--gray-300);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.hero-reviews {
  margin-top: 1.5rem;
}
.review-quote {
  display: block;
  font-style: italic;
  color: var(--gray-200);
  font-size: 0.95rem;
  margin-bottom: 0.3rem;
}
.review-author {
  font-size: 0.75rem;
  color: var(--gray-400);
}

/* ==================== BUTTONS ==================== */

.btn {
  display: inline-block;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.8rem 1.8rem;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all 200ms;
  text-decoration: none;
}
.btn-primary {
  background: var(--gradient);
  color: var(--white);
  box-shadow: 0 4px 20px var(--purple-glow);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--purple-glow);
  color: var(--white);
}
.btn-ghost {
  background: transparent;
  color: var(--gray-100);
  border: 1px solid var(--gray-400);
}
.btn-ghost:hover {
  border-color: var(--gray-200);
  color: var(--white);
}
.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1px solid var(--gray-400);
}
.btn-outline:hover {
  border-color: var(--purple);
  color: var(--white);
}
.btn-large {
  padding: 1rem 2.5rem;
  font-size: 1rem;
}

/* ==================== SOCIAL PROOF ==================== */

.social-proof {
  padding: 2.5rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.proof-label {
  text-align: center;
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--gray-400);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}
.proof-logos {
  display: flex;
  justify-content: center;
  gap: 3rem;
  flex-wrap: wrap;
  align-items: center;
}
.proof-logo {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--gray-400);
  opacity: 0.5;
}

/* ==================== SECTION HEADERS ==================== */

.section-tag {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--purple);
  display: inline-block;
  padding: 0.3rem 0.8rem;
  border: 1px solid rgba(139,92,246,0.3);
  border-radius: 100px;
  margin-bottom: 1rem;
  background: rgba(139,92,246,0.08);
}
.section-header {
  text-align: center;
  margin-bottom: 3rem;
}
.section-header h2 {
  font-weight: 800;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  color: var(--white);
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}
.section-header h2 em {
  font-style: normal;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-header p {
  color: var(--gray-300);
  max-width: 55ch;
  margin: 0 auto;
}

/* ==================== PROBLEM ==================== */

.problem-section {
  padding: clamp(3rem, 8vh, 5rem) 0;
}
.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}
.problem-card {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: transform 200ms, border-color 200ms;
}
.problem-card:hover {
  transform: translateY(-3px);
  border-color: rgba(255,255,255,0.12);
}
.problem-icon {
  font-size: 2rem;
  display: block;
  margin-bottom: 0.8rem;
}
.problem-card h3 {
  font-weight: 700;
  font-size: 1rem;
  color: var(--white);
  margin-bottom: 0.4rem;
}
.problem-card p {
  font-size: 0.85rem;
  color: var(--gray-300);
  line-height: 1.6;
}
.problem-cta {
  text-align: center;
  font-size: 1.1rem;
  color: var(--gray-200);
}
.problem-cta strong { color: var(--white); }

/* ==================== FEATURES ==================== */

.features-section {
  padding: clamp(3rem, 8vh, 5rem) 0;
  background: var(--bg-subtle);
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.5rem;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 2rem;
  transition: transform 200ms, border-color 200ms;
  position: relative;
}
.feature-card:hover {
  transform: translateY(-3px);
  border-color: rgba(139,92,246,0.3);
}
.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}
.feature-card h3 {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--white);
  margin-bottom: 0.5rem;
}
.feature-card p {
  font-size: 0.9rem;
  color: var(--gray-300);
  line-height: 1.6;
  margin-bottom: 1rem;
}
.feature-tag {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  color: var(--purple);
  padding: 0.2rem 0.6rem;
  border: 1px solid rgba(139,92,246,0.3);
  border-radius: 4px;
  text-transform: uppercase;
}

/* ==================== HOW IT WORKS ==================== */

.how-section {
  padding: clamp(3rem, 8vh, 5rem) 0;
}
.steps-grid {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.step {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 2rem;
  flex: 1;
  min-width: 250px;
  max-width: 320px;
  text-align: center;
}
.step-num {
  font-weight: 900;
  font-size: 2.5rem;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1rem;
  line-height: 1;
}
.step h3 {
  font-weight: 700;
  font-size: 1rem;
  color: var(--white);
  margin-bottom: 0.5rem;
}
.step p {
  font-size: 0.85rem;
  color: var(--gray-300);
  line-height: 1.6;
}
.step-arrow {
  font-size: 1.5rem;
  color: var(--gray-400);
  align-self: center;
  padding-top: 1rem;
}

/* ==================== TESTIMONIALS ==================== */

.testimonials-section {
  padding: clamp(3rem, 8vh, 5rem) 0;
  background: var(--bg-subtle);
}
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}
.testimonial-card {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: transform 200ms;
}
.testimonial-card:hover {
  transform: translateY(-3px);
}
.testimonial-stars {
  font-size: 0.85rem;
  margin-bottom: 0.8rem;
  letter-spacing: 0.05em;
}
.testimonial-text {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--gray-200);
  margin-bottom: 1rem;
  font-style: italic;
}
.testimonial-author strong {
  display: block;
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--white);
}
.testimonial-author span {
  font-size: 0.7rem;
  color: var(--gray-400);
}

/* ==================== PRICING ==================== */

.pricing-section {
  padding: clamp(3rem, 8vh, 5rem) 0;
}
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  align-items: start;
}
.pricing-card {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
  position: relative;
  transition: transform 200ms, border-color 200ms;
}
.pricing-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255,255,255,0.12);
}
.pricing-card.featured {
  border-color: var(--purple);
  transform: scale(1.05);
  box-shadow: 0 0 40px var(--purple-glow);
}
.pricing-card.featured:hover {
  transform: scale(1.05) translateY(-4px);
}
.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient);
  color: var(--white);
  font-weight: 700;
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  padding: 0.3rem 1rem;
  border-radius: 100px;
  text-transform: uppercase;
}
.pricing-header h3 {
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--white);
  margin-bottom: 0.3rem;
}
.pricing-desc {
  font-size: 0.8rem;
  color: var(--gray-300);
  margin-bottom: 1.5rem;
}
.pricing-price {
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.price-amount {
  display: block;
  font-weight: 900;
  font-size: 2.5rem;
  color: var(--white);
  line-height: 1.2;
}
.price-note {
  font-size: 0.75rem;
  color: var(--gray-400);
}
.pricing-features {
  list-style: none;
  text-align: left;
  margin-bottom: 1.5rem;
}
.pricing-features li {
  padding: 0.4rem 0;
  font-size: 0.85rem;
  color: var(--gray-200);
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.pricing-features li:last-child { border-bottom: none; }

/* ==================== FAQ ==================== */

.faq-section {
  padding: clamp(3rem, 8vh, 5rem) 0;
  background: var(--bg-subtle);
}
.faq-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.5rem;
}
.faq-item {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 1.5rem;
}
.faq-item h3 {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--white);
  margin-bottom: 0.5rem;
}
.faq-item p {
  font-size: 0.85rem;
  color: var(--gray-300);
  line-height: 1.6;
}

/* ==================== FINAL CTA ==================== */

.final-cta {
  padding: clamp(4rem, 10vh, 7rem) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.final-cta::before {
  content: '';
  position: absolute;
  bottom: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(139,92,246,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.final-cta h2 {
  font-weight: 900;
  font-size: clamp(2rem, 5vw, 3rem);
  color: var(--white);
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
  position: relative;
}
.final-cta h2 em {
  font-style: normal;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.final-cta p {
  color: var(--gray-300);
  font-size: 1.1rem;
  margin-bottom: 2rem;
  position: relative;
}
.cta-buttons {
  position: relative;
  margin-bottom: 1.5rem;
}
.cta-note {
  font-size: 0.75rem;
  color: var(--gray-400);
  position: relative;
}

/* ==================== FOOTER ==================== */

footer {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 3rem 0 1.5rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}
.footer-tagline {
  font-size: 0.8rem;
  color: var(--gray-400);
  margin-top: 0.8rem;
  line-height: 1.6;
}
.footer-links h4 {
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--gray-200);
  margin-bottom: 0.8rem;
}
.footer-links a {
  display: block;
  color: var(--gray-400);
  font-size: 0.85rem;
  padding: 0.2rem 0;
  transition: color 150ms;
}
.footer-links a:hover { color: var(--white); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 1.5rem;
  text-align: center;
}
.footer-bottom p {
  font-size: 0.75rem;
  color: var(--gray-400);
  margin-bottom: 0.3rem;
}
.footer-disclaimer {
  font-size: 0.65rem !important;
  font-style: italic;
  opacity: 0.6;
}

/* ==================== RESPONSIVE ==================== */

@media (max-width: 900px) {
  .nav { display: none; }
  .mobile-menu { display: block; }
  .pricing-card.featured { transform: none; }
  .pricing-card.featured:hover { transform: translateY(-4px); }
  .step-arrow { display: none; }
  .steps-grid { flex-direction: column; align-items: center; }
  .step { max-width: 100%; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 600px) {
  .hero-stats { gap: 1.5rem; }
  .footer-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition-duration: 1ms !important;
  }
}