:root{
  color-scheme: light;

  /* canonical page tokens (light) */
  --page-text: #16202A;
  --page-text-muted: #5C6770;
  --page-border: #D9DFE2;
  --page-accent: #0A7CA6;
  --c-ponudbe-ink: #0B8E8C;
  --c-skladisce-ink: #A85D00;
  --c-montaza-ink: #C13A63;
  --file-xls-ink: #1F8A4C;
  --file-pdf-ink: #C33A30;

  /* band tokens (dark bg, near-constant across themes) */
  --band-text: #EDF1F4;
  --band-text-muted: #9BA7B2;
  --band-border: #33414C;
  --band-accent: #0FBAF8;

  /* page-theme backgrounds */
  --bg: #F3F5F6;
  --bg-alt: #E7EBEE;
  --bg-raised: #FFFFFF;
  --bg-deep: #141A1F;
  --shadow: 0 1px 0 rgba(20,26,31,0.04), 0 16px 34px -16px rgba(20,26,31,0.18);

  /* working aliases (components use these) */
  --text: var(--page-text);
  --text-muted: var(--page-text-muted);
  --border: var(--page-border);
  --accent: var(--page-accent);

  /* constants, same in both themes */
  --accent-vivid: #0FBAF8;
  --accent-hover: #3FC9FF;
  --accent-ink: #06222E;
  --accent-tint: rgba(15,186,248,0.14);
  --c-ponudbe: #00D7D5;
  --c-skladisce: #FFA801;
  --c-montaza: #EF5777;
  --file-xls: #2FAE66;
  --file-pdf: #E1574C;
  --focus: var(--accent-vivid);
}

:root[data-theme="dark"]{
  color-scheme: dark;
  --page-text: #EEF2F5;
  --page-text-muted: #97A3AE;
  --page-border: #34424D;
  --page-accent: #0FBAF8;
  --c-ponudbe-ink: #00D7D5;
  --c-skladisce-ink: #FFA801;
  --c-montaza-ink: #EF5777;
  --file-xls-ink: #2FAE66;
  --file-pdf-ink: #E1574C;

  --band-text: #EEF2F5;
  --band-text-muted: #97A3AE;
  --band-border: #34424D;
  --band-accent: #0FBAF8;

  --bg: #1E272E;
  --bg-alt: #24303A;
  --bg-raised: #2A3742;
  --bg-deep: #141A1F;
  --shadow: 0 1px 0 rgba(0,0,0,0.5), 0 18px 40px -18px rgba(0,0,0,0.65);
}

*,*::before,*::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){ html{ scroll-behavior: auto; } }

body{
  margin:0;
  background: var(--bg);
  color: var(--text);
  font-family: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1,h2,h3{
  font-family: 'Big Shoulders Display', 'Arial Narrow', sans-serif;
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.01em;
  text-wrap: balance;
  margin: 0;
  color: var(--text);
}
h2{ font-size: clamp(1.9rem, 1.2rem + 3vw, 2.9rem); font-weight: 700; }
h3{ font-family: 'IBM Plex Sans', sans-serif; font-weight: 700; font-size: 1.15rem; letter-spacing: -0.01em; }
p{ margin: 0 0 1em; max-width: 62ch; color: var(--text); }
.muted{ color: var(--text-muted); }
a{ color: inherit; }
img,svg{ max-width: 100%; }

.mono{ font-family: 'IBM Plex Mono', ui-monospace, SFMono-Regular, monospace; font-variant-numeric: tabular-nums; }
.eyebrow{
  font-family: 'IBM Plex Mono', monospace;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent);
}

.wrap{ max-width: 1180px; margin: 0 auto; padding: 0 24px; }

/* Bands: dark navy sections + a permanent-dark header. Any raised (white) island
   nested inside one (doc-card, band phone-mock) resets back to page-canonical tokens. */
.band, .site-header{
  --text: var(--band-text);
  --text-muted: var(--band-text-muted);
  --border: var(--band-border);
  --accent: var(--band-accent);
}
.band{ background: var(--bg-deep); }
.doc-card, .band .phone-mock{
  --text: var(--page-text);
  --text-muted: var(--page-text-muted);
  --border: var(--page-border);
  --accent: var(--page-accent);
}

a:focus-visible, button:focus-visible{
  outline: 2px solid var(--focus);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---------- Header ---------- */
.site-header{
  position: sticky; top: 0; z-index: 40;
  background: rgba(20,26,31,0.9);
  backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--border);
}
.site-header .wrap{
  display:flex; align-items:center; justify-content:space-between;
  height: 68px; gap: 16px;
}
.brand{ display:flex; align-items:center; gap:10px; text-decoration:none; }
.brand-mark{
  width: 34px; height: 34px; flex: none;
  background: var(--accent-vivid);
  display:flex; align-items:center; justify-content:center;
  border-radius: 8px;
  overflow: hidden;
}
.brand-mark svg{ width: 20px; height: 20px; display:block; }
.brand-name{ font-family:'Big Shoulders Display', sans-serif; font-weight:800; font-size:1.35rem; letter-spacing: 0.01em; color: var(--text); }
.brand-name .accent{ color: var(--accent-vivid); }
.brand-name small{ display:block; font-family:'IBM Plex Mono', monospace; font-weight:500; font-size:0.6rem; letter-spacing:0.08em; color: var(--text-muted); text-transform: uppercase; margin-top:-2px; }

.header-controls{ display:flex; align-items:center; gap:10px; margin-left:auto; }

nav.primary-nav{ display:flex; align-items:center; gap: 28px; }
nav.primary-nav a{
  text-decoration:none; font-size:0.92rem; font-weight:500; color: var(--text-muted);
  padding: 6px 2px; border-bottom: 2px solid transparent;
}
nav.primary-nav a:hover{ color: var(--text); border-color: var(--accent); }

.btn{
  display:inline-flex; align-items:center; gap:8px;
  font-family:'IBM Plex Sans', sans-serif; font-weight:600; font-size:0.92rem;
  padding: 11px 20px; border-radius: 3px; text-decoration:none; cursor:pointer;
  border: 1px solid transparent; white-space: nowrap;
}
.btn-accent{ background: var(--accent-vivid); color: var(--accent-ink); }
.btn-accent:hover{ background: var(--accent-hover); }
.btn-ghost{ border-color: var(--border); color: var(--text); background: transparent; }
.btn-ghost:hover{ border-color: var(--text-muted); }

.theme-toggle{
  display:inline-flex; align-items:center; justify-content:center;
  width:38px; height:38px; flex:none; border:1px solid var(--border); border-radius:3px;
  background:transparent; color:var(--text); cursor:pointer;
}
.theme-toggle:hover{ border-color: var(--text-muted); }
:root[data-theme="dark"] .icon-sun{ display:none; }
:root:not([data-theme="dark"]) .icon-moon{ display:none; }

.nav-toggle{ display:none; background:none; border:1px solid var(--border); border-radius:3px; padding:8px 10px; flex:none; }
.nav-toggle span{ display:block; width:18px; height:2px; background: var(--text); margin:3px 0; }

/* ---------- AI chip ---------- */
.ai-chip{
  display:inline-flex; align-items:center; gap:4px; vertical-align:middle; margin-left:8px;
  font-family:'IBM Plex Mono', monospace; font-size:0.62rem; font-weight:700; letter-spacing:0.06em;
  padding: 2px 8px 3px; border-radius: 10px; text-transform:uppercase;
  background: var(--accent-tint); color: var(--accent); border: 1px solid var(--accent);
}

/* ---------- Hero ---------- */
.hero{ padding: 76px 0 88px; overflow: hidden; }
.hero .wrap{
  display:grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items:center;
}
.hero h1{ font-size: clamp(2.6rem, 1.6rem + 4.2vw, 4.3rem); margin: 14px 0 20px; }
.hero h1 em{ font-style:normal; color: var(--accent); }
.hero p.lead{ font-size: 1.08rem; color: var(--text-muted); max-width: 48ch; }
.hero-ctas{ display:flex; gap:14px; margin-top: 30px; flex-wrap: wrap; }
.hero-meta{ display:flex; gap: 24px; margin-top: 42px; flex-wrap: wrap; }
.hero-meta div{ font-family:'IBM Plex Mono', monospace; font-size:0.7rem; color: var(--text-muted); text-transform:uppercase; letter-spacing:0.06em; }
.hero-meta strong{ display:block; font-family:'Big Shoulders Display', sans-serif; font-size:1.55rem; color: var(--text); text-transform:none; letter-spacing:0; font-weight:700; }

.doc-card{
  position: relative;
  background: var(--bg-raised);
  color: var(--text);
  border-radius: 6px;
  box-shadow: var(--shadow);
  padding: 30px 26px 26px;
  border: 1px solid var(--border);
}
.doc-card::before{
  content:"";
  position:absolute; left:0; right:0; top:0; height:10px;
  background-image: radial-gradient(circle, var(--bg-deep) 3.5px, transparent 3.6px);
  background-size: 18px 18px;
  background-position: 9px 0;
  background-repeat: repeat-x;
  transform: translateY(-5px);
}
.doc-card-head{ display:flex; justify-content:space-between; align-items:flex-start; margin-bottom:10px; }
.doc-id{ font-family:'IBM Plex Mono', monospace; font-size:0.72rem; color: var(--text-muted); }
.stamp{
  font-family:'IBM Plex Mono', monospace; font-size: 0.66rem; font-weight:600; letter-spacing:0.08em;
  color: var(--accent); border: 1.5px solid var(--accent); border-radius: 3px;
  padding: 4px 8px; transform: rotate(-4deg); text-transform:uppercase;
}
.schema{ display:block; width:100%; height:auto; }
.schema text{ font-family:'IBM Plex Mono', monospace; }
.schema .node-box{ fill: var(--bg-alt); stroke: var(--border); stroke-width:1.2; }
.schema .node-label{ font-size:11px; font-weight:600; fill: var(--text); letter-spacing:0.02em; }
.schema .node-sub{ font-size:8px; fill: var(--text-muted); letter-spacing:0.03em; }
.schema .center-box{ fill: var(--accent-vivid); }
.schema .center-label{ fill: var(--accent-ink); font-size:10.5px; font-weight:700; font-family:'Big Shoulders Display', sans-serif; letter-spacing:-0.01em; }
.schema .out-box{ fill: var(--bg-alt); stroke: var(--border); stroke-width:1.2; }
.schema line{ stroke: var(--border); stroke-width:1.4; }
.schema .out-line{ stroke: var(--accent); }
.schema .filebadge-text{ font-family:'IBM Plex Mono', monospace; font-size:8px; font-weight:700; fill: currentColor; letter-spacing:0.02em; }
.schema .bar-ponudbe{ fill: var(--c-ponudbe); }
.schema .bar-skladisce{ fill: var(--c-skladisce); }
.schema .bar-montaza{ fill: var(--c-montaza); }
.schema .ic-ponudbe{ color: var(--c-ponudbe-ink); }
.schema .ic-skladisce{ color: var(--c-skladisce-ink); }
.schema .ic-montaza{ color: var(--c-montaza-ink); }
.schema .ic-xls{ color: var(--file-xls-ink); }
.schema .ic-pdf{ color: var(--file-pdf-ink); }
.schema .ic-ai{ color: var(--accent-vivid); }
.schema .ai-tag-bg{ fill: var(--bg-deep); }
.schema-legend{ display:flex; gap:16px; flex-wrap:wrap; margin-top:16px; }
.schema-legend span{ display:inline-flex; align-items:center; gap:6px; font-family:'IBM Plex Mono', monospace; font-size:0.68rem; color: var(--text-muted); }
.schema-legend i{ width:9px; height:9px; border-radius:2px; display:inline-block; }

/* ---------- Sections ---------- */
.section{ padding: 86px 0; }
.section-head{ max-width: 640px; margin-bottom: 46px; }
.section-head h2{ margin-top: 10px; }
.section-alt{ background: var(--bg-alt); }

/* mobile emphasis */
.mobile-feature{
  background: radial-gradient(ellipse 900px 500px at 12% -10%, rgba(239,87,119,0.13), transparent 60%), var(--bg);
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
}
.mobile-feature .wrap{ display:grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items:center; }
.mobile-feature .eyebrow{ color: var(--c-montaza-ink); }
.benefit-list{ display:grid; gap:14px; margin-top:28px; }
.benefit{ display:flex; gap:12px; align-items:flex-start; font-size:0.96rem; color: var(--text); }
.benefit-mark{ flex:none; width:9px; height:9px; margin-top:7px; border-radius:2px; background: var(--c-montaza); }

.phone-mock{
  width: 240px; margin: 0 auto; border: 2px solid var(--border); border-radius: 22px;
  background: var(--bg-raised); padding: 16px 14px; box-shadow: 0 24px 60px -24px rgba(0,0,0,0.45);
}
.phone-mock--lg{ width: 270px; border-color: var(--c-montaza); }
.phone-mock .screen-bar{ height:6px; width:38px; background: var(--border); border-radius:3px; margin: 0 auto 16px; }
.phone-mock .field{ background: var(--bg-alt); border-radius:3px; padding:10px 11px; margin-bottom:9px; font-family:'IBM Plex Mono', monospace; font-size:0.7rem; color: var(--text-muted); }
.phone-mock .field strong{ display:block; color: var(--text); font-family:'IBM Plex Sans',sans-serif; font-size:0.8rem; margin-bottom:2px; }
.phone-mock .field.filled{ border-left: 3px solid var(--c-montaza); }
.phone-mock .field-btn{ background: var(--c-montaza); color:#2B0812; text-align:center; font-family:'IBM Plex Sans',sans-serif; font-weight:700; font-size:0.78rem; border-radius:3px; padding:10px; margin-top:4px; }

/* problem */
.paper-trail{ display:grid; grid-template-columns: repeat(3,1fr); gap: 22px; margin: 40px 0 26px; }
.paper-note{
  background: var(--bg-raised); border: 1px solid var(--border); border-radius: 5px;
  padding: 20px 18px; position:relative;
}
.paper-note .eyebrow{ display:block; margin-bottom: 10px; }
.paper-note p{ margin:0; font-size:0.94rem; color: var(--text-muted); }
.disconnect-row{
  display:flex; align-items:center; justify-content:center; gap: 14px;
  margin: 6px 0 36px; color: var(--text-muted); font-family:'IBM Plex Mono', monospace; font-size: 0.78rem;
  text-transform:uppercase; letter-spacing:0.08em;
}
.disconnect-row .dash{ flex:1; max-width:120px; border-top: 1.5px dashed var(--border); }

/* workflow table */
.workflow-table{ width:100%; border-collapse: collapse; margin-top: 8px; }
.workflow-table th{
  text-align:left; font-family:'IBM Plex Mono', monospace; font-size:0.7rem; text-transform:uppercase;
  letter-spacing:0.08em; color: var(--text-muted); font-weight:600; padding: 0 14px 12px; border-bottom: 1.5px solid var(--text);
}
.workflow-table td{ padding: 20px 14px; border-bottom: 1px solid var(--border); vertical-align: top; }
.workflow-table tr:last-child td{ border-bottom: 1.5px solid var(--text); }
.step-num{ font-family:'Big Shoulders Display', sans-serif; font-size:2rem; font-weight:800; color: var(--accent); width: 60px; }
.step-title{ font-weight:700; margin-bottom:4px; }
.step-role{
  display:inline-block; font-family:'IBM Plex Mono', monospace; font-size:0.68rem; text-transform:uppercase;
  letter-spacing:0.05em; padding: 4px 9px; border-radius: 3px; white-space:nowrap;
}
.step-role--eng{ background: rgba(0,215,213,0.14); color: var(--c-ponudbe-ink); }
.step-role--wh{ background: rgba(255,168,1,0.14); color: var(--c-skladisce-ink); }
.step-role--field{ background: rgba(239,87,119,0.14); color: var(--c-montaza-ink); }
.step-role--analyst{ background: var(--accent-tint); color: var(--accent); }

/* roles */
.roles-grid{ display:grid; grid-template-columns: repeat(5,1fr); gap: 16px; }
.badge{
  background: var(--bg-raised); border: 1px solid var(--border); border-radius: 6px;
  padding: 22px 16px 20px; text-align:left; display:flex; flex-direction:column; gap: 12px;
}
.badge-monogram{
  width:40px; height:40px; border-radius: 50%;
  display:flex; align-items:center; justify-content:center; font-family:'Big Shoulders Display', sans-serif;
  font-weight:800; font-size:1.15rem; color: var(--accent-ink);
}
.badge-monogram--eng{ background: var(--c-ponudbe); }
.badge-monogram--wh{ background: var(--c-skladisce); }
.badge-monogram--field{ background: var(--c-montaza); }
.badge-monogram--analyst{ background: var(--accent-vivid); }
.badge-monogram--admin{ background: var(--border); color: var(--text); }
.badge h3{ font-size:1rem; }
.badge p{ font-size: 0.86rem; color: var(--text-muted); margin:0; }

/* reports */
.reports-grid{ display:grid; grid-template-columns: repeat(3,1fr); gap: 22px; }
.report-card{
  border: 1px solid var(--border); border-radius: 6px; padding: 26px 24px; background: var(--bg-raised);
  display:flex; flex-direction:column; gap:14px; height:100%;
}
.report-card h3{ font-size:1.2rem; }
.chip-row{ display:flex; gap:8px; margin-top:auto; }
.chip{
  font-family:'IBM Plex Mono', monospace; font-size:0.68rem; font-weight:600; letter-spacing:0.04em;
  border: 1px solid var(--border); border-radius:3px; padding: 4px 8px; color: var(--text-muted);
}

/* platform */
.platform-grid{ display:grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items:center; }
.feature-list{ display:grid; gap: 26px; }
.feature-item{ display:flex; gap:16px; align-items:flex-start; }
.feature-icon{ flex:none; width:38px; height:38px; color: var(--accent); }
.feature-item h3{ margin-bottom:4px; font-size:1.02rem; }
.feature-item p{ color: var(--text-muted); font-size:0.92rem; margin:0; }

/* flex section */
.flex-section .wrap{ display:grid; grid-template-columns: 0.9fr 1.1fr; gap: 50px; align-items:start; }
.flex-section .tag-cloud{ display:flex; flex-wrap:wrap; gap:8px; margin-top:18px; }
.flex-section .tag-cloud span{
  font-family:'IBM Plex Mono', monospace; font-size:0.72rem; border:1px solid var(--border); border-radius: 20px;
  padding: 5px 12px; color: var(--text-muted);
}

/* contact */
.contact-grid{ display:grid; grid-template-columns: 1.1fr 0.9fr; gap: 50px; align-items:start; }
.placeholder-box{
  border: 1.5px dashed var(--border); border-radius: 6px; padding: 22px;
  font-family:'IBM Plex Mono', monospace; font-size: 0.82rem; color: var(--text-muted);
}
.placeholder-box .fill{ color: var(--accent); }

/* footer */
footer{ border-top: 1px solid var(--border); padding: 34px 0; }
footer .wrap{ display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:16px; }
footer .brand-name{ font-size:1.1rem; }

@media (max-width: 900px){
  nav.primary-nav{ position:fixed; inset: 68px 0 auto 0; background: var(--bg-deep); border-bottom:1px solid var(--border);
    flex-direction:column; align-items:flex-start; padding: 18px 24px 24px; gap:16px; transform: translateY(-8px); opacity:0; pointer-events:none; transition: opacity .2s ease, transform .2s ease; }
  nav.primary-nav.open{ opacity:1; transform:none; pointer-events:auto; }
  .nav-toggle{ display:block; }
  .hero .wrap{ grid-template-columns: 1fr; }
  .hero-ctas{ flex-direction:column; align-items:flex-start; }
  .mobile-feature .wrap{ grid-template-columns: 1fr; }
  .mobile-feature .phone-mock--lg{ order:-1; }
  .paper-trail{ grid-template-columns: 1fr; }
  .roles-grid{ grid-template-columns: repeat(2,1fr); }
  .reports-grid{ grid-template-columns: 1fr; }
  .platform-grid{ grid-template-columns: 1fr; }
  .flex-section .wrap{ grid-template-columns: 1fr; }
  .contact-grid{ grid-template-columns: 1fr; }
  .workflow-table thead{ display:none; }
  .workflow-table, .workflow-table tbody, .workflow-table tr, .workflow-table td{ display:block; width:100%; }
  .workflow-table tr{ padding: 18px 0; border-bottom:1px solid var(--border); }
  .workflow-table td{ border:none; padding: 2px 0; }
}
@media (max-width: 560px){
  .roles-grid{ grid-template-columns: 1fr 1fr; }
  .hero-meta{ gap:20px; }
}