/* ============================================================
   SALESMAN — V3: Bold Purple / Premium
   Fialovo-černé pozadí, gradient text v hero, split 50/50 hero,
   feature cards s left-border, velký typografický CTA
   ============================================================ */
:root {
  --color-primary:       #7C3AED;
  --color-primary-dark:  #6D28D9;
  --color-primary-light: #A78BFA;
  --color-accent:        #F472B6;
  --color-accent2:       #34D399;
  --color-text:          #F8FAFC;
  --color-text-muted:    #94A3B8;
  --color-text-dim:      #94A3B8;
  --color-bg:            #07060D;
  --color-bg-alt:        #0D0B18;
  --color-bg-card:       #120F20;
  --color-bg-purple:     #1A1040;
  --color-border:        rgba(255,255,255,0.07);
  --color-border-hi:     rgba(255,255,255,0.12);
  --color-border-purple: rgba(124,58,237,0.3);
  --font-sans:           'DM Sans', system-ui, sans-serif;
  --container:           1280px;
  --radius-sm:           0.5rem;
  --radius-md:           1rem;
  --radius-lg:           1.75rem;
}

/* RESET */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; }
body {
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 2.5rem;
}

/* PLACEHOLDER */
.placeholder-img {
  width: 100%;
  height: 100%;
  min-height: 360px;
  background: var(--color-bg-card);
  border: 2px dashed rgba(124,58,237,0.3);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 700;
  transition: all 0.2s;
  cursor: pointer;
  border: 2px solid transparent;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 24px rgba(124,58,237,0.4);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  box-shadow: 0 4px 32px rgba(124,58,237,0.6);
  transform: translateY(-2px);
}
.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
  border-color: var(--color-border-hi);
}
.btn-ghost:hover {
  color: var(--color-text);
  border-color: rgba(255,255,255,0.25);
  background: rgba(255,255,255,0.04);
}

/* ============================================================
   NAV — kompaktní, centered logo + tagline divider
   ============================================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7,6,13,0.9);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--color-border);
  padding: 0;
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 66px;
}
.logo-wrap {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.03em;
}
.logo-gradient {
  background: linear-gradient(90deg, var(--color-primary-light), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.nav-tagline {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  font-weight: 500;
  letter-spacing: 0.02em;
  padding-left: 1rem;
  border-left: 1px solid var(--color-border-hi);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav-links a {
  color: var(--color-text-muted);
  font-weight: 500;
  font-size: 0.9375rem;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--color-text); }
.nav-back {
  color: var(--color-text-muted) !important;
  font-size: 0.875rem;
  border-right: 1px solid var(--color-border-hi);
  padding-right: 2rem;
}

/* ============================================================
   HERO — split 50/50, text vlevo s velkým gradient headline, visual vpravo
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: stretch;
  background: var(--color-bg);
  position: relative;
  overflow: hidden;
}
/* Ambient purple glow */
.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  left: -200px;
  width: 900px;
  height: 900px;
  background: radial-gradient(ellipse,
    rgba(124,58,237,0.16) 0%,
    rgba(124,58,237,0.04) 45%,
    transparent 70%);
  pointer-events: none;
}
/* Accent glow vpravo */
.hero::after {
  content: '';
  position: absolute;
  bottom: -100px;
  right: -100px;
  width: 600px;
  height: 600px;
  background: radial-gradient(ellipse,
    rgba(244,114,182,0.08) 0%,
    transparent 65%);
  pointer-events: none;
}
.hero-left {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 5rem 4rem 5rem 0;
  position: relative;
  z-index: 1;
}
.hero-left-inner {
  max-width: 600px;
  margin-left: auto;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}
.hero-right {
  width: 50%;
  background: var(--color-bg-alt);
  border-left: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 5rem 3rem;
  position: relative;
  z-index: 1;
  flex-shrink: 0;
}
/* Grid dots on right panel */
.hero-right::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(124,58,237,0.25) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: 0.5;
  pointer-events: none;
}
.hero-right-content {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 520px;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary-light);
  background: rgba(124,58,237,0.12);
  border: 1px solid var(--color-border-purple);
  border-radius: var(--radius-sm);
  padding: 0.4rem 0.875rem;
}
.hero-title {
  font-size: 5rem;
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: -0.045em;
}
.hero-title .line-white { color: var(--color-text); }
.hero-title .line-gradient {
  background: linear-gradient(90deg, var(--color-primary-light) 0%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-perex {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 480px;
  line-height: 1.75;
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.hero-note {
  font-size: 0.8125rem;
  color: var(--color-text-dim);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.hero-note::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--color-accent2);
  border-radius: 50%;
  flex-shrink: 0;
}
/* App screen mockup on right */
.hero-screen {
  width: 100%;
  height: 460px;
  background: var(--color-bg-card);
  border-radius: 16px;
  border: 1px solid var(--color-border-hi);
  box-shadow: 0 32px 80px rgba(0,0,0,0.6), 0 0 0 1px rgba(124,58,237,0.1);
  position: relative;
  overflow: hidden;
}
.hero-screen::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-accent) 100%);
}
.hero-screen-inner {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 1rem;
}
.screen-icon {
  width: 60px;
  height: 60px;
  background: rgba(124,58,237,0.2);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.screen-icon svg { width: 28px; height: 28px; stroke: var(--color-primary-light); fill: none; stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; }
.screen-label { font-size: 0.8rem; color: var(--color-text-muted); font-weight: 500; }
/* Hero stats pod screen */
.hero-stats {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-top: 1.5rem;
}
.hero-stat {
  flex: 1;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  border-left: 2px solid var(--color-primary);
}
.hero-stat-val {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.04em;
  line-height: 1;
}
.hero-stat-label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 0.2rem;
  font-weight: 500;
}

/* ============================================================
   FEATURES — karty s left border accent, 2-3 per row
   ============================================================ */
.features {
  padding: 6rem 0;
  background: var(--color-bg-alt);
}
.features-header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: end;
  margin-bottom: 4rem;
}
.features-left {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.section-kicker {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary-light);
}
.features-title {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.045em;
  line-height: 1.1;
  color: var(--color-text);
}
.features-right {
  font-size: 1rem;
  color: var(--color-text-muted);
  line-height: 1.75;
  max-width: 420px;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.feature-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}
.feature-card:hover {
  border-color: var(--color-border-hi);
  border-left-color: var(--color-accent);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.35);
}
.feature-icon {
  width: 40px;
  height: 40px;
  background: rgba(124,58,237,0.15);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.feature-icon svg { width: 20px; height: 20px; stroke: var(--color-primary-light); fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.feature-card h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
}
.feature-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ============================================================
   NUMBERS — dark full-width section s velkými čísly
   ============================================================ */
.numbers {
  padding: 5rem 0;
  background: var(--color-bg-purple);
  border-top: 1px solid var(--color-border-purple);
  border-bottom: 1px solid var(--color-border-purple);
}
.numbers-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.number-item {
  padding: 2rem 3rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  position: relative;
}
.number-item + .number-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 15%;
  height: 70%;
  width: 1px;
  background: var(--color-border-purple);
}
.number-val {
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: -0.06em;
  line-height: 1;
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.number-label {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  font-weight: 500;
}
.number-sub {
  font-size: 0.8125rem;
  color: var(--color-text-dim);
}

/* ============================================================
   PROCESS — vertikální kroky s čísly a connecting line
   ============================================================ */
.process {
  padding: 6rem 0;
  background: var(--color-bg);
}
.process-header {
  text-align: center;
  margin-bottom: 5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}
.process-title {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.045em;
  line-height: 1.1;
  color: var(--color-text);
}
.process-inner {
  display: grid;
  grid-template-columns: 1fr 3px 1fr 3px 1fr;
  align-items: start;
  gap: 0;
}
.process-step {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  padding: 2.5rem 2rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}
.process-connector {
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 4rem;
}
.process-connector::after {
  content: '';
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
}
.step-num {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 800;
  box-shadow: 0 4px 20px rgba(124,58,237,0.5);
  flex-shrink: 0;
}
.process-step h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
}
.process-step p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ============================================================
   TESTIMONIALS — horizontal scrollable / 3 column
   ============================================================ */
.testimonials {
  padding: 6rem 0;
  background: var(--color-bg-alt);
}
.testimonials-header {
  text-align: center;
  margin-bottom: 4rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}
.testimonials-title {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.045em;
  color: var(--color-text);
}
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.testimonial-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  transition: border-color 0.2s;
}
.testimonial-card:hover { border-color: var(--color-border-purple); }
.quote-icon {
  width: 40px;
  height: 40px;
  background: rgba(124,58,237,0.15);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.quote-icon svg { width: 20px; height: 20px; fill: var(--color-primary-light); }
.quote {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  font-style: italic;
  flex: 1;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 1rem;
  border-top: 1px solid var(--color-border);
  padding-top: 1.5rem;
}
.avatar {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  flex-shrink: 0;
}
.testimonial-author strong {
  display: block;
  font-size: 0.9375rem;
  color: var(--color-text);
  font-weight: 700;
}
.testimonial-author span {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* ============================================================
   CTA — velký typografický blok, centered, bez karet
   ============================================================ */
.cta-banner {
  padding: 7rem 0;
  background: var(--color-bg);
  position: relative;
  overflow: hidden;
  text-align: center;
}
.cta-banner::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 500px;
  background: radial-gradient(ellipse,
    rgba(124,58,237,0.2) 0%,
    rgba(244,114,182,0.05) 45%,
    transparent 70%);
  pointer-events: none;
}
.cta-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2.5rem;
}
.cta-title {
  font-size: 6rem;
  font-weight: 800;
  letter-spacing: -0.055em;
  line-height: 0.95;
  color: var(--color-text);
}
.cta-title .gradient {
  background: linear-gradient(90deg, var(--color-primary-light) 0%, var(--color-accent) 60%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.cta-subtitle {
  font-size: 1.1875rem;
  color: var(--color-text-muted);
  max-width: 500px;
  line-height: 1.75;
}
.cta-divider {
  width: 80px;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: 2px;
}
.cta-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.cta-note {
  font-size: 0.8125rem;
  color: var(--color-text-dim);
}

/* ============================================================
   FOOTER — centered s gradient linkou nahoře
   ============================================================ */
.footer {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  padding: 4rem 0 2.5rem;
  position: relative;
}
.footer::before {
  content: '';
  position: absolute;
  top: 0; left: 10%; right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-primary) 30%, var(--color-accent) 70%, transparent);
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 4rem;
  padding-bottom: 3rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--color-border);
}
.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.footer-logo {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}
.footer-logo .logo-gradient {
  background: linear-gradient(90deg, var(--color-primary-light), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.footer-brand p {
  font-size: 0.875rem;
  color: var(--color-text-dim);
  line-height: 1.7;
  max-width: 240px;
}
.footer-col {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.footer-col strong {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-dim);
  margin-bottom: 0.25rem;
}
.footer-col a {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  transition: color 0.18s;
}
.footer-col a:hover { color: var(--color-text); }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-bottom p { font-size: 0.8125rem; color: var(--color-text-dim); }
.footer-bottom-links { display: flex; gap: 1.5rem; }
.footer-bottom-links a { font-size: 0.8125rem; color: var(--color-text-dim); transition: color 0.18s; }
.footer-bottom-links a:hover { color: var(--color-text-muted); }

/* ============================================================
   RESPONZIVNÍ DESIGN
   ============================================================ */

/* Tablet — 1024px */
@media (max-width: 1024px) {
  .hero { flex-direction: column; min-height: auto; }
  .hero-left { padding: 4rem 2rem 2rem; }
  .hero-left-inner { max-width: 100%; margin-left: 0; }
  .hero-right { width: 100%; padding: 2rem; }
  .hero-title { font-size: 3.5rem; }
  .features-header { grid-template-columns: 1fr; gap: 1.5rem; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .numbers-inner { grid-template-columns: repeat(2, 1fr); }
  .number-item + .number-item::before { display: none; }
  .process-inner { grid-template-columns: 1fr; gap: 2rem; }
  .process-connector { display: none; }
  .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
  .cta-title { font-size: 4rem; }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 2.5rem; }
}

/* Mobil — 768px */
@media (max-width: 768px) {
  .container { padding: 0 1.25rem; }
  .hero-left { padding: 3rem 1.25rem 2rem; }
  .hero-right { padding: 2rem 1.25rem; }
  .hero-title { font-size: 2.75rem; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .hero-stats { flex-direction: column; gap: 1rem; }
  .nav-links li:not(:first-child):not(:last-child) { display: none; }
  .nav-back { border-right: none; padding-right: 0; }
  .features-grid { grid-template-columns: 1fr; }
  .numbers-inner { grid-template-columns: 1fr 1fr; }
  .process-title { font-size: 2rem; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .cta-title { font-size: 3rem; }
  .cta-actions { flex-direction: column; align-items: center; }
  .footer-inner { grid-template-columns: 1fr; gap: 1.5rem; }
  .footer-bottom { flex-direction: column; gap: 1rem; text-align: center; }
  .footer-bottom-links { flex-wrap: wrap; justify-content: center; }
}

/* Malý mobil — 480px */
@media (max-width: 480px) {
  .hero-title { font-size: 2.25rem; }
  .features-title { font-size: 2rem; }
  .cta-title { font-size: 2.5rem; }
  .numbers-inner { grid-template-columns: 1fr; }
  .btn { padding: 0.75rem 1.25rem; font-size: 0.9rem; }
}