/* Mastersys — static site stylesheet
   Palette: ink navy, Rhône teal, fog, signal amber */
:root {
  --ink: #13243b;
  --ink-2: #2b3d55;
  --teal: #1e6e7a;
  --teal-soft: #d6e8e8;
  --fog: #eef2f1;
  --paper: #ffffff;
  --amber: #f2b33d;
  --line: #cfd9d8;
  --muted: #5a6b7d;

  --font-display: "Bricolage Grotesque", "Segoe UI", sans-serif;
  --font-body: "Instrument Sans", "Segoe UI", sans-serif;

  --step--1: 0.875rem;
  --step-0: 1.0625rem;
  --step-1: 1.3rem;
  --step-2: 1.7rem;
  --step-3: 2.3rem;
  --step-4: clamp(2.4rem, 5vw, 3.8rem);

  --wrap: 72rem;
  --gutter: clamp(1rem, 4vw, 2.5rem);
  --radius-lg: 18px;
  --radius-sm: 8px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; display: block; }
a { color: var(--teal); text-underline-offset: 3px; }
a:hover { color: var(--ink); }
:focus-visible { outline: 3px solid var(--amber); outline-offset: 3px; border-radius: 4px; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 0 0 0.5em;
  font-weight: 700;
}
h1 { font-size: var(--step-4); }
h2 { font-size: var(--step-3); }
h3 { font-size: var(--step-1); letter-spacing: -0.01em; }
p { margin: 0 0 1em; max-width: 64ch; }

.wrap { width: min(100% - 2 * var(--gutter), var(--wrap)); margin-inline: auto; }
.skip { position: absolute; left: -999px; top: 0; background: var(--amber); color: var(--ink); padding: .6rem 1rem; z-index: 100; }
.skip:focus { left: 1rem; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 4.25rem; }
.brand { display: flex; align-items: center; gap: .6rem; text-decoration: none; color: var(--ink); }
.brand svg { width: 34px; height: 34px; }
.brand span { font-family: var(--font-display); font-weight: 800; font-size: 1.3rem; letter-spacing: -0.03em; }

.nav ul { list-style: none; display: flex; gap: .25rem; margin: 0; padding: 0; align-items: center; }
.nav a {
  display: block; padding: .5rem .8rem; border-radius: 999px;
  text-decoration: none; color: var(--ink-2); font-weight: 500; font-size: .98rem;
}
.nav a:hover { background: var(--fog); color: var(--ink); }
.nav a[aria-current="page"] { color: var(--ink); background: var(--teal-soft); }
.nav .nav-cta { background: var(--ink); color: #fff; margin-left: .5rem; }
.nav .nav-cta:hover { background: var(--teal); color: #fff; }

.menu-toggle {
  display: none; background: none; border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: .45rem .7rem; font: inherit; color: var(--ink); cursor: pointer;
}
@media (max-width: 860px) {
  .menu-toggle { display: block; }
  .nav { position: absolute; top: 4.25rem; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--line); display: none; }
  .nav.open { display: block; }
  .nav ul { flex-direction: column; align-items: stretch; padding: .75rem var(--gutter) 1.25rem; }
  .nav a { border-radius: var(--radius-sm); padding: .75rem .9rem; }
  .nav .nav-cta { margin: .5rem 0 0; text-align: center; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .85rem 1.4rem; border-radius: 999px; font-weight: 600;
  text-decoration: none; border: 2px solid transparent; cursor: pointer; font: inherit; font-weight: 600;
}
.btn-primary { background: var(--amber); color: var(--ink); }
.btn-primary:hover { background: #ffc85c; color: var(--ink); }
.btn-ghost { border-color: currentColor; color: inherit; background: transparent; }
.btn-ghost:hover { background: rgba(255,255,255,.1); color: inherit; }
.btn-dark { background: var(--ink); color: #fff; }
.btn-dark:hover { background: var(--teal); color: #fff; }

/* ---------- Hero (home) ---------- */
.hero {
  background: var(--ink);
  color: #fff;
  overflow: hidden;
  position: relative;
}
.hero::before { /* faint blueprint grid */
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: linear-gradient(to bottom, #000 40%, transparent);
}
.hero .wrap {
  position: relative;
  display: grid; grid-template-columns: 1.05fr 1fr; gap: 3rem; align-items: center;
  padding-block: clamp(3.5rem, 9vw, 6.5rem);
}
.hero h1 { color: #fff; }
.hero .lede { font-size: var(--step-1); color: #c9d6e3; max-width: 34ch; }
.hero .greeting { font-family: var(--font-display); color: var(--amber); font-size: var(--step-1); font-weight: 600; margin-bottom: .75rem; }
.hero .actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.75rem; }
@media (max-width: 900px) { .hero .wrap { grid-template-columns: 1fr; } }

/* SAP landscape diagram: DEV -> QAS -> PRD */
.landscape { width: 100%; height: auto; }
.landscape .node rect { fill: #1b3150; stroke: #3e5878; stroke-width: 1.5; }
.landscape .node.prd rect { stroke: var(--amber); }
.landscape .node text { fill: #fff; font-family: var(--font-display); font-weight: 700; }
.landscape .node .sub { fill: #9fb3c8; font-family: var(--font-body); font-weight: 500; }
.landscape .route { stroke: #4f6b8c; stroke-width: 2; stroke-dasharray: 6 6; fill: none; }
.landscape .packet { fill: var(--amber); }
.landscape .cloud path { fill: none; stroke: #7fb8c0; stroke-width: 1.5; }
.landscape .cloud text { fill: #7fb8c0; font-family: var(--font-body); font-size: 13px; }
.landscape .caption { fill: #9fb3c8; font-family: var(--font-body); font-size: 14px; }

.packet-move { offset-path: path("M 110 150 L 290 150 L 470 150"); animation: travel 4.5s cubic-bezier(.6,.05,.3,1) .6s 1 forwards; offset-rotate: 0deg; opacity: 0; }
@keyframes travel {
  0% { offset-distance: 0%; opacity: 0; }
  8% { opacity: 1; }
  45%, 55% { offset-distance: 50%; }
  85% { opacity: 1; }
  100% { offset-distance: 100%; opacity: 0; }
}
.prd-glow { animation: glow 1.2s ease-out 5s 1 forwards; opacity: 0; }
@keyframes glow { to { opacity: 1; } }

/* ---------- Page hero (inner pages) ---------- */
.page-hero { background: var(--fog); border-bottom: 1px solid var(--line); }
.page-hero .wrap { padding-block: clamp(3rem, 7vw, 5rem); }
.page-hero p { font-size: var(--step-1); color: var(--ink-2); max-width: 46ch; }

/* ---------- Sections ---------- */
.section { padding-block: clamp(3.5rem, 8vw, 6rem); }
.section-alt { background: var(--fog); }
.section-dark { background: var(--ink); color: #fff; }
.section-dark p { color: #c9d6e3; }
.section-head { margin-bottom: 2.5rem; max-width: 40rem; }
.section-head p { color: var(--muted); font-size: var(--step-1); }
.section-dark .section-head p { color: #c9d6e3; }

.split { display: grid; grid-template-columns: 1fr 1.3fr; gap: clamp(2rem, 6vw, 5rem); align-items: start; }
@media (max-width: 860px) { .split { grid-template-columns: 1fr; } }

.facts { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
.facts div { background: #fff; padding: 1.4rem 1.5rem; }
.facts strong { display: block; font-family: var(--font-display); font-size: var(--step-2); color: var(--teal); line-height: 1.1; }
.facts span { color: var(--muted); }

/* Services list — one tall stacked list with a big index letter per service */
.svc-list { list-style: none; margin: 0; padding: 0; border-top: 2px solid var(--ink); }
.svc-list > li {
  display: grid; grid-template-columns: 4.5rem 1fr 1.4fr; gap: 1.5rem;
  padding: 1.75rem 0; border-bottom: 1px solid var(--line); align-items: start;
}
.svc-list .ico { width: 3.25rem; height: 3.25rem; border-radius: 14px; background: var(--teal-soft); display: grid; place-items: center; color: var(--teal); }
.svc-list .ico svg { width: 26px; height: 26px; }
.svc-list h3 { margin: .5rem 0 0; font-size: var(--step-2); }
.svc-list p { margin: .35rem 0 0; color: var(--ink-2); }
.svc-list ul { margin: .75rem 0 0; padding-left: 1.1rem; color: var(--muted); font-size: .97rem; }
@media (max-width: 760px) {
  .svc-list > li { grid-template-columns: 3.5rem 1fr; }
  .svc-list > li > div:last-child { grid-column: 2; }
}

/* Compact service chips on the home page */
.chips { display: flex; flex-wrap: wrap; gap: .6rem; margin: 1.5rem 0 2rem; padding: 0; list-style: none; }
.chips li { border: 1px solid #3e5878; border-radius: 999px; padding: .5rem 1rem; font-weight: 500; }

/* Process — a real sequence, so numbered */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; counter-reset: step; }
.steps li { counter-increment: step; border-top: 3px solid var(--teal); padding-top: 1.1rem; }
.steps li::before { content: counter(step); font-family: var(--font-display); font-weight: 800; font-size: var(--step-2); color: var(--teal); display: block; margin-bottom: .3rem; }
.steps h3 { margin-bottom: .3rem; }
.steps p { color: var(--muted); font-size: .98rem; }
@media (max-width: 860px) { .steps { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .steps { grid-template-columns: 1fr; } }

/* Quote block (blog) */
.quote-feature {
  background: var(--ink); color: #fff; border-radius: var(--radius-lg);
  padding: clamp(2rem, 5vw, 3.5rem); position: relative; overflow: hidden;
}
.quote-feature blockquote { margin: 0; font-family: var(--font-display); font-size: clamp(1.5rem, 3.2vw, 2.3rem); line-height: 1.25; font-weight: 600; max-width: 30ch; }
.quote-feature cite { display: block; margin-top: 1.25rem; font-style: normal; color: var(--amber); font-weight: 600; }
.tag { display: inline-block; background: var(--teal-soft); color: var(--teal); border-radius: 999px; padding: .2rem .75rem; font-size: var(--step--1); font-weight: 600; }
.quote-feature .tag { background: rgba(242,179,61,.15); color: var(--amber); margin-bottom: 1.25rem; }

.post-body { max-width: 42rem; }
.post-body h2 { font-size: var(--step-2); margin-top: 2rem; }

/* Case study */
.case { border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; background: #fff; }
.case-head { background: var(--ink); color: #fff; padding: clamp(1.75rem, 4vw, 2.5rem); }
.case-head h2 { color: #fff; margin-bottom: .5rem; }
.case-head p { color: #c9d6e3; margin: 0; }
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); }
.case-grid > div { padding: 1.75rem; border-right: 1px solid var(--line); }
.case-grid > div:last-child { border-right: 0; }
.case-grid h3 { color: var(--teal); }
.case-grid ul { padding-left: 1.1rem; margin: 0; color: var(--ink-2); }
.case-grid li { margin-bottom: .4rem; }
@media (max-width: 860px) {
  .case-grid { grid-template-columns: 1fr; }
  .case-grid > div { border-right: 0; border-bottom: 1px solid var(--line); }
}
.flow { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; margin-top: 1.25rem; padding: 0; list-style: none; }
.flow li { background: rgba(255,255,255,.08); border: 1px solid #3e5878; border-radius: var(--radius-sm); padding: .4rem .75rem; font-size: .95rem; }
.flow li:not(:last-child)::after { content: ""; }

/* Profile placeholder */
.profile { display: grid; grid-template-columns: 220px 1fr; gap: 2.5rem; align-items: start; }
.avatar { aspect-ratio: 1; border-radius: var(--radius-lg); background: var(--teal-soft); display: grid; place-items: center; color: var(--teal); font-family: var(--font-display); font-weight: 800; font-size: 3.5rem; }
@media (max-width: 700px) { .profile { grid-template-columns: 1fr; } .avatar { max-width: 180px; } }
.note { background: #fff7e6; border: 1px dashed var(--amber); border-radius: var(--radius-sm); padding: .9rem 1.1rem; font-size: .95rem; color: var(--ink-2); }

.values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.values h3 { border-left: 3px solid var(--amber); padding-left: .8rem; }
.values p { color: var(--muted); }
@media (max-width: 760px) { .values { grid-template-columns: 1fr; } }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: clamp(2rem, 6vw, 4.5rem); }
@media (max-width: 860px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-card { background: var(--ink); color: #fff; border-radius: var(--radius-lg); padding: 2rem; }
.contact-card p { color: #c9d6e3; }
.contact-card a { color: var(--amber); font-weight: 600; font-size: var(--step-1); word-break: break-all; }
.contact-card dl { margin: 1.5rem 0 0; display: grid; gap: 1rem; }
.contact-card dt { color: #9fb3c8; font-size: var(--step--1); }
.contact-card dd { margin: 0; font-weight: 500; }

form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 560px) { form .row { grid-template-columns: 1fr; } }
.field { display: flex; flex-direction: column; gap: .35rem; margin-bottom: 1.1rem; }
.field label { font-weight: 600; font-size: .95rem; }
.field label .req { color: var(--teal); }
.field input, .field textarea, .field select {
  font: inherit; color: var(--ink); background: #fff;
  border: 1.5px solid var(--line); border-radius: var(--radius-sm); padding: .75rem .9rem;
}
.field input:focus, .field textarea:focus, .field select:focus { border-color: var(--teal); outline: none; box-shadow: 0 0 0 3px var(--teal-soft); }
.field textarea { min-height: 9rem; resize: vertical; }
.form-status { margin-top: 1rem; font-weight: 500; }
.form-status.error { color: #b3261e; }
.form-status.ok { color: var(--teal); }

/* ---------- CTA band ---------- */
.cta-band { background: var(--teal); color: #fff; }
.cta-band .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1.5rem; padding-block: 3rem; }
.cta-band h2 { margin: 0; color: #fff; font-size: var(--step-2); max-width: 26ch; }

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); color: #9fb3c8; padding-block: 3rem 2rem; font-size: .95rem; }
.site-footer .grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 2rem; }
.site-footer h4 { color: #fff; font-size: 1rem; margin-bottom: .75rem; }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .4rem; }
.site-footer a { color: #c9d6e3; text-decoration: none; }
.site-footer a:hover { color: var(--amber); }
.site-footer .brand { color: #fff; margin-bottom: .75rem; }
.site-footer .legal { border-top: 1px solid #2b3d55; margin-top: 2.5rem; padding-top: 1.25rem; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; }
@media (max-width: 700px) { .site-footer .grid { grid-template-columns: 1fr 1fr; } .site-footer .grid > div:first-child { grid-column: 1 / -1; } }