/* ==========================================================================
   ZAMAN IT — Design System
   Signal & Blueprint: a technical-draftsman aesthetic for a web studio.
   Zero external requests (system font stack + inline SVG) => max speed.
   ========================================================================== */

:root{
  /* ---- Core palette ---- */
  --ink:        #08122B;   /* near-black navy, primary text/bg */
  --ink-soft:   #2A3350;   /* muted navy for secondary text on light */
  --paper:      #F6F5F1;   /* warm paper background (not stock cream/AI-cream) */
  --paper-dim:  #EDEBE3;   /* slightly deeper paper for panels */
  --line:       #D8D5C9;   /* hairline rule on paper */
  --line-dark:  rgba(246,245,241,0.14); /* hairline rule on ink */
  --signal:     #C9410D;   /* signal orange — the one bold accent */
  --signal-ink: #7A2A0C;   /* deep orange for text-on-paper needing AA contrast */
  --wire:       #00C2A8;   /* teal wire accent — secondary, used sparingly */
  --white:      #FFFFFF;

  /* ---- Type ---- */
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Mono", "Segoe UI Mono", Consolas, monospace;

  /* ---- Scale (major third-ish, tuned) ---- */
  --step--1: clamp(0.83rem, 0.8rem + 0.15vw, 0.9rem);
  --step-0:  clamp(1rem, 0.96rem + 0.2vw, 1.08rem);
  --step-1:  clamp(1.22rem, 1.15rem + 0.35vw, 1.4rem);
  --step-2:  clamp(1.5rem, 1.35rem + 0.6vw, 1.85rem);
  --step-3:  clamp(1.9rem, 1.6rem + 1.1vw, 2.6rem);
  --step-4:  clamp(2.5rem, 2rem + 2vw, 3.75rem);
  --step-5:  clamp(3.2rem, 2.3rem + 3.4vw, 5.5rem);

  /* ---- Spacing ---- */
  --sp-1: 0.5rem;
  --sp-2: 0.85rem;
  --sp-3: 1.5rem;
  --sp-4: 2.5rem;
  --sp-5: 4rem;
  --sp-6: 6.5rem;
  --sp-7: 9rem;

  --maxw: 76rem;
  --radius: 2px; /* deliberately near-square: drafting-table, not SaaS-bubble */
  --dur: 220ms;
  --ease: cubic-bezier(.2,.7,.2,1);
}

/* ---- Reset ---- */
*, *::before, *::after{ box-sizing: border-box; }
html{ -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body{
  margin:0;
  font-family: var(--font);
  background: var(--paper);
  color: var(--ink);
  font-size: var(--step-0);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg{ display:block; max-width:100%; }
a{ color: inherit; text-decoration: none; }
ul{ margin:0; padding:0; list-style:none; }
button{ font: inherit; color: inherit; background:none; border:0; cursor:pointer; }
input, select, textarea{ font: inherit; color: inherit; }
h1,h2,h3,h4,p,figure{ margin:0; }
::selection{ background: var(--signal); color: var(--white); }

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *, *::before, *::after{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; }
}

:focus-visible{ outline: 2px solid var(--signal); outline-offset: 3px; }

/* ---- Layout helpers ---- */
.wrap{ max-width: var(--maxw); margin-inline:auto; padding-inline: var(--sp-3); }
@media (min-width: 900px){ .wrap{ padding-inline: var(--sp-4); } }

.section{ padding-block: var(--sp-6); }
.section--tight{ padding-block: var(--sp-5); }
.section--ink{ background: var(--ink); color: var(--paper); }
.section--panel{ background: var(--paper-dim); }
.section-head{ max-width: 42rem; margin-bottom: var(--sp-5); }
.section-head p{ color: var(--ink-soft); margin-top: var(--sp-2); }
.section--ink .section-head p{ color: rgba(246,245,241,0.7); }

/* ---- Reference index (structural device: draftsman's index number) ---- */
.ref{
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--signal-ink);
  display:inline-flex;
  align-items:center;
  gap: .5em;
}
.ref::before{ content:""; width: 1.4em; height:1px; background: currentColor; }
.section--ink .ref{ color: var(--wire); }

/* ---- Typography ---- */
h1,h2,h3{ font-weight: 800; letter-spacing: -0.02em; line-height: 1.05; }
.h-display{ font-size: var(--step-5); font-weight: 800; letter-spacing: -0.03em; line-height: 0.98; }
.h-1{ font-size: var(--step-4); }
.h-2{ font-size: var(--step-3); }
.h-3{ font-size: var(--step-2); }
.lede{ font-size: var(--step-1); color: var(--ink-soft); max-width: 38rem; }
.section--ink .lede{ color: rgba(246,245,241,0.75); }
.measure{ max-width: 62ch; }
code, .mono{ font-family: var(--font-mono); }

/* ---- Buttons ---- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:.6em;
  padding: 0.95em 1.5em;
  font-weight: 700;
  font-size: var(--step--1);
  border-radius: var(--radius);
  border: 1.5px solid transparent;
  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
  white-space: nowrap;
}
.btn-primary{ background: var(--signal); color: var(--white); }
.btn-primary:hover{ background: #A8380B; transform: translateY(-2px); }
.btn-line{ border-color: var(--ink); color: var(--ink); }
.btn-line:hover{ background: var(--ink); color: var(--paper); transform: translateY(-2px); }
.section--ink .btn-line{ border-color: var(--line-dark); color: var(--paper); }
.section--ink .btn-line:hover{ background: var(--paper); color: var(--ink); }
.btn-ghost{ color: var(--ink); font-weight:700; padding-inline:0; border-bottom: 1.5px solid var(--ink); border-radius:0; }
.btn-ghost:hover{ border-color: var(--signal); color: var(--signal-ink); }
.section--ink .btn-ghost{ color: var(--paper); border-color: var(--paper); }
.btn-row{ display:flex; flex-wrap:wrap; gap: var(--sp-3); align-items:center; }

/* ---- Header / Nav ---- */
.site-header{
  position: sticky; top:0; z-index: 100;
  background: rgba(246,245,241,0.92);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap{ display:flex; align-items:center; justify-content:space-between; height: 4.5rem; gap: var(--sp-3); }
.brand{ display:flex; align-items:center; gap:.6rem; font-weight:800; font-size:var(--step-1); letter-spacing:-0.01em; }
.brand .mark{ width:1.9rem; height:1.9rem; flex:none; }
.brand small{ display:block; font-weight:600; font-size: 0.6em; color: var(--ink-soft); letter-spacing: 0.02em; margin-top:-2px; }

.nav-main{ display:none; }
.nav-main ul{ display:flex; gap: var(--sp-4); }
.nav-main a{ font-weight:600; font-size: var(--step--1); padding-block:.4rem; border-bottom: 2px solid transparent; }
.nav-main a:hover, .nav-main a[aria-current="page"]{ border-color: var(--signal); }
.header-actions{ display:flex; align-items:center; gap: var(--sp-2); }
.header-actions .btn-primary{ padding: .7em 1.2em; }

@media (min-width: 980px){
  .nav-main{ display:block; }
  .nav-toggle{ display:none; }
}

.nav-toggle{ width:2.6rem; height:2.6rem; display:grid; place-items:center; border:1px solid var(--line); }
.nav-toggle svg{ width:1.1rem; height:1.1rem; }

.mobile-nav{
  position: fixed; inset:0; z-index: 150;
  background: var(--paper);
  transform: translateY(-100%);
  transition: transform var(--dur) var(--ease);
  overflow-y:auto;
}
.mobile-nav.is-open{ transform: translateY(0); }
.mobile-nav .wrap{ padding-block: var(--sp-3); }
.mobile-nav-top{ display:flex; align-items:center; justify-content:space-between; height:4.5rem; border-bottom:1px solid var(--line); }
.mobile-nav ul{ padding-block: var(--sp-4); display:flex; flex-direction:column; gap: var(--sp-2); }
.mobile-nav a{ font-size: var(--step-3); font-weight:800; letter-spacing:-0.02em; }
.mobile-nav .btn-row{ margin-top: var(--sp-4); }
@media (min-width: 980px){ .mobile-nav{ display:none; } }

/* ---- Hero ---- */
.hero{ padding-block: var(--sp-6) var(--sp-5); position:relative; overflow:hidden; }
.hero-grid{ display:grid; gap: var(--sp-5); align-items:end; }
.hero-eyebrow{ display:flex; flex-wrap:wrap; gap: var(--sp-3); margin-bottom: var(--sp-3); }
.hero-eyebrow span{ font-size: var(--step--1); color: var(--ink-soft); }
.hero-figure{ position:relative; }
@media (min-width: 980px){
  .hero-grid{ grid-template-columns: 1.15fr 0.85fr; }
}
.hero-figure-inner{
  position: relative;
  border: 1px solid var(--line);
  background: var(--paper-dim);
  aspect-ratio: 1 / 1;
  overflow: hidden;
}
.hero-figure-inner svg.hero-art{ position:absolute; inset:0; width:100%; height:100%; }
.hero-figure-inner .accent{ position:absolute; }

/* ---- Bento / feature grid ---- */
.bento{ display:grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.bento > *{ background: var(--paper); padding: var(--sp-4); }
@media (min-width: 700px){ .bento--3{ grid-template-columns: repeat(3,1fr); } .bento--2{ grid-template-columns: repeat(2,1fr); } }
.bento-icon{ width: 2.5rem; height:2.5rem; margin-bottom: var(--sp-3); color: var(--signal); }
.bento h3{ font-size: var(--step-1); margin-bottom: .5rem; }
.bento p{ color: var(--ink-soft); font-size: var(--step--1); }

/* ---- Service list (row-based, not identical cards) ---- */
.service-row{
  display:grid; gap: var(--sp-3);
  padding-block: var(--sp-4);
  border-top: 1px solid var(--line);
  align-items:start;
}
.service-row:last-child{ border-bottom: 1px solid var(--line); }
@media (min-width: 820px){
  .service-row{ grid-template-columns: 5rem 1fr 1.2fr auto; gap: var(--sp-4); }
}
.service-row .num{ font-family: var(--font-mono); color: var(--signal-ink); font-size: var(--step-0); }
.service-row h3{ font-size: var(--step-2); }
.service-row p{ color: var(--ink-soft); }
.service-row .tags{ display:flex; flex-wrap:wrap; gap:.4rem; margin-top:.6rem; }
.tag{ font-size: 0.72rem; font-weight:700; color: var(--ink-soft); border:1px solid var(--line); padding: .25em .6em; }

/* ---- Stat row ---- */
.stat-row{ display:grid; gap: var(--sp-4); }
@media (min-width:700px){ .stat-row{ grid-template-columns: repeat(4,1fr); } }
.stat{ border-left: 2px solid var(--signal); padding-left: var(--sp-3); }
.stat b{ display:block; font-size: var(--step-3); font-weight:800; letter-spacing:-0.02em; }
.stat span{ color: var(--ink-soft); font-size: var(--step--1); }
.section--ink .stat span{ color: rgba(246,245,241,0.7); }

/* ---- Pricing ---- */
.price-grid{ display:grid; gap: 1px; background: var(--line); border:1px solid var(--line); }
@media (min-width: 900px){ .price-grid{ grid-template-columns: repeat(4,1fr); } }
.price-card{ background: var(--paper); padding: var(--sp-4); display:flex; flex-direction:column; gap: var(--sp-2); position:relative; }
.price-card.is-popular{ background: var(--ink); color: var(--paper); }
.price-card.is-popular .price-card-tag{ color: var(--wire); }
.price-card.is-popular p{ color: rgba(246,245,241,0.7); }
.price-card.is-popular li{ border-color: var(--line-dark); }
.price-card-tag{ font-size: var(--step--1); font-weight:700; color: var(--signal-ink); }
.price-amount{ font-size: var(--step-3); font-weight:800; letter-spacing:-0.02em; }
.price-amount sup{ font-size: 0.5em; }
.price-card ul{ display:flex; flex-direction:column; margin-top:auto; padding-top: var(--sp-2); }
.price-card li{ padding-block: .55em; border-top: 1px solid var(--line); font-size: var(--step--1); display:flex; gap:.5em; }
.price-card li::before{ content: "—"; opacity:.5; }
.price-card .btn{ margin-top: var(--sp-3); width:100%; }

/* ---- Work / portfolio mock-frame ---- */
.work-grid{ display:grid; gap: var(--sp-4); }
@media (min-width:760px){ .work-grid{ grid-template-columns: repeat(2,1fr); } }
.work-card{ border:1px solid var(--line); background:var(--paper); }
.work-frame{ aspect-ratio: 16/11; border-bottom:1px solid var(--line); overflow:hidden; }
.work-body{ padding: var(--sp-3) var(--sp-4) var(--sp-4); }
.work-body .tags{ display:flex; gap:.5rem; margin-bottom:.6rem; }
.work-body h3{ font-size: var(--step-1); }
.work-body p{ color: var(--ink-soft); font-size: var(--step--1); margin-top:.3rem; }

/* ---- Testimonial ---- */
.quote-block{ border-left: 2px solid var(--signal); padding-left: var(--sp-3); }
.quote-block p{ font-size: var(--step-1); font-weight:600; letter-spacing:-0.01em; }
.quote-block footer{ margin-top: var(--sp-2); color: var(--ink-soft); font-size: var(--step--1); }

/* ---- FAQ ---- */
.faq-item{ border-top: 1px solid var(--line); }
.faq-item:last-child{ border-bottom: 1px solid var(--line); }
.faq-q{ width:100%; display:flex; justify-content:space-between; align-items:center; gap: var(--sp-3); padding-block: var(--sp-3); text-align:left; font-weight:700; font-size: var(--step-0); }
.faq-q .icon{ width:1.1rem; height:1.1rem; flex:none; transition: transform var(--dur) var(--ease); }
.faq-item[data-open="true"] .icon{ transform: rotate(45deg); }
.faq-a{ overflow:hidden; max-height:0; transition: max-height var(--dur) var(--ease); }
.faq-item[data-open="true"] .faq-a{ max-height: 20rem; }
.faq-a p{ padding-bottom: var(--sp-3); color: var(--ink-soft); max-width: 56ch; }

/* ---- Form ---- */
.form-grid{ display:grid; gap: var(--sp-3); }
@media (min-width:640px){ .form-grid--2{ grid-template-columns: 1fr 1fr; } }
.field{ display:flex; flex-direction:column; gap:.4rem; }
.field label{ font-size: var(--step--1); font-weight:700; }
.field input, .field select, .field textarea{
  padding: .85em 1em; border: 1.5px solid var(--line); background: var(--paper); border-radius: var(--radius);
  transition: border-color var(--dur) var(--ease);
}
.field input:focus, .field select:focus, .field textarea:focus{ border-color: var(--ink); outline:none; }
.field textarea{ resize: vertical; min-height: 7rem; }

/* ---- Footer ---- */
.site-footer{ background: var(--ink); color: var(--paper); padding-block: var(--sp-5) var(--sp-4); }
.footer-top{ display:grid; gap: var(--sp-4); padding-bottom: var(--sp-5); border-bottom: 1px solid var(--line-dark); }
@media (min-width: 780px){ .footer-top{ grid-template-columns: 1.4fr 1fr 1fr 1fr; } }
.footer-top h4{ font-size: var(--step--1); text-transform:none; color: var(--wire); margin-bottom: var(--sp-2); font-weight:700; }
.footer-top ul{ display:flex; flex-direction:column; gap: .6rem; }
.footer-top a{ color: rgba(246,245,241,0.78); font-size: var(--step--1); }
.footer-top a:hover{ color: var(--paper); }
.footer-brand p{ color: rgba(246,245,241,0.65); margin-top: var(--sp-2); max-width: 30ch; }
.footer-bottom{ display:flex; flex-wrap:wrap; justify-content:space-between; gap: var(--sp-2); padding-top: var(--sp-3); font-size: 0.8rem; color: rgba(246,245,241,0.55); }

/* ---- WhatsApp float ---- */
.wa-float{
  position: fixed; right: 1.25rem; bottom: 1.25rem; z-index: 200;
  display:flex; align-items:center; gap:.6rem;
  background: var(--ink); color: var(--paper);
  padding: .8rem 1.1rem; border-radius: 999px;
  box-shadow: 0 10px 30px rgba(8,18,43,0.25);
  transition: transform var(--dur) var(--ease);
}
.wa-float:hover{ transform: translateY(-3px); }
.wa-float svg{ width:1.3rem; height:1.3rem; color: #25D366; }
.wa-float span{ font-weight:700; font-size: var(--step--1); }
@media (max-width: 560px){ .wa-float span{ display:none; } .wa-float{ padding: .85rem; } }

/* ---- Utility ---- */
.center{ text-align:center; margin-inline:auto; }
.flex-between{ display:flex; align-items:center; justify-content:space-between; gap:var(--sp-3); flex-wrap:wrap; }
.mt-1{margin-top:var(--sp-1);} .mt-2{margin-top:var(--sp-2);} .mt-3{margin-top:var(--sp-3);} .mt-4{margin-top:var(--sp-4);} .mt-5{margin-top:var(--sp-5);}
.sr-only{ position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0; }
.skip-link{ position:absolute; left:-999px; top:0; background:var(--signal); color:var(--white); padding:.75em 1.2em; z-index:1000; }
.skip-link:focus{ left: var(--sp-3); top: var(--sp-3); }

/* ---- Reveal-on-load (single orchestrated entrance, hero only) ---- */
.reveal{ opacity:0; transform: translateY(14px); animation: reveal-in 700ms var(--ease) forwards; }
.reveal[data-d="1"]{ animation-delay: 90ms; }
.reveal[data-d="2"]{ animation-delay: 180ms; }
.reveal[data-d="3"]{ animation-delay: 270ms; }
@keyframes reveal-in{ to{ opacity:1; transform:none; } }
@media (prefers-reduced-motion: reduce){ .reveal{ opacity:1; transform:none; animation:none; } }

/* ---- Grid-dot decorative field (pure CSS, no image request) ---- */
.grid-dots{
  background-image: radial-gradient(var(--line) 1px, transparent 1px);
  background-size: 22px 22px;
}
.section--ink .grid-dots{ background-image: radial-gradient(var(--line-dark) 1px, transparent 1px); }

/* ---- Floating accents on hero SVGs (subtle, single-purpose) ---- */
@keyframes float-a{ 0%,100%{ transform: translateY(0);} 50%{ transform: translateY(-10px);} }
@keyframes float-b{ 0%,100%{ transform: translateY(0);} 50%{ transform: translateY(8px);} }
.float-a{ animation: float-a 5.5s var(--ease) infinite; }
.float-b{ animation: float-b 6.5s var(--ease) infinite; }
@media (prefers-reduced-motion: reduce){ .float-a, .float-b{ animation:none; } }

/* ---- Browser-chrome mockup frame (for portfolio/work previews) ---- */
.browser-mock{ width:100%; height:100%; display:flex; flex-direction:column; background:var(--white); }
.browser-mock .chrome{ display:flex; align-items:center; gap:.4rem; padding:.6rem .8rem; border-bottom:1px solid var(--line); flex:none; }
.browser-mock .dot{ width:.5rem; height:.5rem; border-radius:50%; background: var(--line); }
.browser-mock .addr{ margin-left:.5rem; flex:1; height:1.1rem; background: var(--paper-dim); border-radius:2px; }
.browser-mock .body{ flex:1; padding: 1rem; display:grid; gap:.6rem; }
.browser-mock .block{ background: var(--paper-dim); border-radius:1px; }

/* ---- Callout banner ---- */
.callout{ border:1.5px solid var(--ink); padding: var(--sp-4); display:flex; flex-wrap:wrap; gap:var(--sp-3); align-items:center; justify-content:space-between; }
.callout h3{ font-size: var(--step-1); max-width: 32rem; }

/* ---- Definition list (facts, AI/agent-readable summaries) ---- */
.fact-list{ display:grid; gap: var(--sp-2) var(--sp-4); }
@media (min-width:700px){ .fact-list{ grid-template-columns: 1fr 1fr; } }
.fact-list div{ border-top:1px solid var(--line); padding-block: var(--sp-2); display:flex; justify-content:space-between; gap:var(--sp-3); }
.fact-list dt{ font-weight:700; color: var(--ink-soft); font-size: var(--step--1); }
.fact-list dd{ margin:0; font-weight:700; text-align:right; }

/* ---- Breadcrumb ---- */
.crumbs{ font-size: var(--step--1); color: var(--ink-soft); display:flex; gap:.5em; flex-wrap:wrap; margin-bottom: var(--sp-3); }
.crumbs a:hover{ color: var(--signal-ink); }

/* ---- Process steps (genuine sequence: numbering earned) ---- */
.steps{ display:grid; gap: var(--sp-4); counter-reset: step; }
@media (min-width:760px){ .steps{ grid-template-columns: repeat(4,1fr); } }
.step{ position:relative; padding-top: var(--sp-3); border-top: 2px solid var(--ink); }
.step .num{ font-family: var(--font-mono); color: var(--signal-ink); display:block; margin-bottom:.5rem; }
.step h3{ font-size: var(--step-1); margin-bottom:.4rem; }
.step p{ color: var(--ink-soft); font-size: var(--step--1); }

/* ---- 404 ---- */
.error-figure{ font-family: var(--font-mono); font-size: clamp(4rem,18vw,9rem); font-weight:800; letter-spacing:-0.03em; color: var(--line); line-height:.8; }

/* Print */
@media print{ .wa-float, .site-header, .mobile-nav{ display:none; } }