/* ==========================================================================
   DWI Architectural Design Studio
   "Structural" — architectural drafting precision
   ========================================================================== */

/* ---- Fonts (self-hosted, latin) ---------------------------------------- */
@font-face{font-family:"Space Grotesk";src:url("../fonts/space-grotesk-500.woff2") format("woff2");font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:"Space Grotesk";src:url("../fonts/space-grotesk-700.woff2") format("woff2");font-weight:700;font-style:normal;font-display:swap}
@font-face{font-family:"Inter";src:url("../fonts/inter-400.woff2") format("woff2");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"Inter";src:url("../fonts/inter-500.woff2") format("woff2");font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:"Inter";src:url("../fonts/inter-600.woff2") format("woff2");font-weight:600;font-style:normal;font-display:swap}
@font-face{font-family:"IBM Plex Mono";src:url("../fonts/ibm-plex-mono-400.woff2") format("woff2");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"IBM Plex Mono";src:url("../fonts/ibm-plex-mono-500.woff2") format("woff2");font-weight:500;font-style:normal;font-display:swap}

/* ---- Design tokens ----------------------------------------------------- */
:root{
  /* palette */
  --paper:#ECEBE6;        /* cool concrete off-white */
  --paper-2:#E3E2DB;      /* slightly deeper panel */
  --ink:#141517;          /* architectural near-black */
  --ink-70:#43454a;       /* strong secondary */
  --graphite:#615D56;     /* warm secondary text (AA on paper) */
  --line:#D4D2CA;         /* hairline */
  --accent:#ED6744;       /* DWI brand coral — graphics & dark sections */
  --accent-ink:#A63A1D;   /* darkened brand coral — AA text on paper, hover fills */
  --grey-brand:#A7A2A0;   /* DWI brand warm grey — labels on dark */
  --dark:#141517;         /* inverted section bg */
  --dark-2:#1c1e21;
  --dark-ink:#ECEBE6;     /* text on dark */
  --dark-line:#33363b;

  /* type */
  --font-display:"Space Grotesk","Arial Narrow",system-ui,sans-serif;
  --font-body:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:"IBM Plex Mono",ui-monospace,"SFMono-Regular",Menlo,monospace;

  /* fluid type scale (note: calc-style +/- inside clamp REQUIRE surrounding spaces) */
  --step--1:clamp(.78rem, .75rem + .15vw, .85rem);
  --step-0:clamp(1rem, .96rem + .2vw, 1.1rem);
  --step-1:clamp(1.15rem, 1.05rem + .4vw, 1.35rem);
  --step-2:clamp(1.4rem, 1.2rem + .9vw, 1.9rem);
  --step-3:clamp(1.9rem, 1.5rem + 1.9vw, 3rem);
  --step-4:clamp(2.1rem, 1.6rem + 3vw, 4.5rem);
  --step-5:clamp(2.5rem, 1.7rem + 5vw, 6.75rem);

  /* layout */
  --maxw:1240px;
  --gutter:clamp(1.25rem,5vw,4.5rem);
  --diag:-11deg;          /* signature: matches the logo's slash angle */
}

/* ---- Reset ------------------------------------------------------------- */
*,*::before,*::after{box-sizing:border-box}
*{margin:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;overflow-x:hidden}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:var(--step-0);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,picture,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:700;line-height:1.02;letter-spacing:-.02em;overflow-wrap:break-word}
:focus-visible{outline:2px solid var(--accent-ink);outline-offset:3px}
.section--dark :focus-visible,.site-footer :focus-visible,.hero :focus-visible{outline-color:var(--accent)}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
}

/* ==========================================================================
   Layout primitives
   ========================================================================== */
.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter)}
.container--wide{max-width:1440px}
.section{padding-block:clamp(4rem,8vw,8rem)}
.section--tight{padding-block:clamp(2.5rem,5vw,4.5rem)}
.section--dark{background:var(--dark);color:var(--dark-ink)}
.section--dark h1,.section--dark h2,.section--dark h3{color:var(--dark-ink)}
.rule{height:1px;background:var(--line);border:0;margin:0}
.section--dark .rule{background:var(--dark-line)}

/* ==========================================================================
   Typography helpers
   ========================================================================== */
.eyebrow{
  font-family:var(--font-mono);font-weight:500;font-size:var(--step--1);
  text-transform:uppercase;letter-spacing:.16em;color:var(--accent-ink);
  display:inline-flex;align-items:center;gap:.75em;
}
.eyebrow::before{content:"";width:1.75rem;height:1px;background:currentColor;display:inline-block;transform:skewX(var(--diag))}
.section--dark .eyebrow{color:var(--accent)}
.display-1{font-size:var(--step-5);letter-spacing:-.03em}
.display-2{font-size:var(--step-4)}
.h-lg{font-size:var(--step-3)}
.h-md{font-size:var(--step-2)}
.lead{font-size:var(--step-1);line-height:1.5;color:var(--ink-70);max-width:42ch}
.section--dark .lead{color:#c7c8c3}
.muted{color:var(--graphite)}
.measure{max-width:62ch}
.mono{font-family:var(--font-mono);font-size:var(--step--1);letter-spacing:.02em}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn{
  --b:var(--ink);
  display:inline-flex;align-items:center;gap:.7em;cursor:pointer;
  font-family:var(--font-body);font-weight:500;font-size:var(--step--1);
  text-transform:uppercase;letter-spacing:.09em;
  padding:1em 1.7em;border:1px solid var(--b);background:transparent;color:var(--ink);
  transition:background .25s ease,color .25s ease,border-color .25s ease,transform .25s ease;
}
.btn:hover{transform:translateY(-2px)}
.btn .arw{transition:transform .25s ease}
.btn:hover .arw{transform:translateX(4px)}
.btn--primary{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.btn--primary:hover{background:var(--accent-ink);border-color:var(--accent-ink);color:#fff}
.btn--ghost:hover{background:var(--ink);color:var(--paper)}
.section--dark .btn{--b:var(--dark-ink);color:var(--dark-ink)}
.section--dark .btn--primary{background:var(--paper);color:var(--ink);border-color:var(--paper)}
.section--dark .btn--primary:hover{background:var(--accent);border-color:var(--accent);color:var(--ink)}
.section--dark .btn--ghost:hover{background:var(--paper);color:var(--ink)}

/* text link with animated underline */
.tlink{position:relative;color:var(--accent-ink);font-weight:500;display:inline-flex;align-items:center;gap:.5em}
.tlink::after{content:"";position:absolute;left:0;bottom:-2px;width:100%;height:1px;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .3s ease}
.tlink:hover::after{transform:scaleX(1)}
.tlink:hover .arw{transform:translateX(4px)}

/* ==========================================================================
   Header
   ========================================================================== */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:50;
  background:var(--paper);border-bottom:1px solid var(--line);
  transition:background .3s ease,border-color .3s ease,color .3s ease;
}
.site-header .bar{display:flex;align-items:center;justify-content:space-between;height:76px}
.brand{display:flex;align-items:center;gap:.75rem}
.brand img{height:26px;width:auto}
.brand .brand-txt{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;color:var(--graphite);line-height:1.2;max-width:12ch}
.site-nav ul{display:flex;align-items:center;gap:clamp(1.25rem,3vw,2.75rem);list-style:none;padding:0}
.site-nav a{font-size:var(--step--1);text-transform:uppercase;letter-spacing:.08em;font-weight:500;position:relative;padding:.4em 0;color:inherit}
.site-nav a::after{content:"";position:absolute;left:0;bottom:0;width:100%;height:1px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .3s ease}
.site-nav a:hover::after,.site-nav a[aria-current="page"]::after{transform:scaleX(1)}
.site-nav a[aria-current="page"]{color:var(--accent-ink)}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;border:1px solid var(--line);background:transparent}
.nav-toggle span{width:20px;height:1.5px;background:var(--ink);margin-inline:auto;transition:transform .3s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}

/* transparent-over-hero variant (home) */
.site-header--over{background:transparent;border-color:transparent;color:var(--paper)}
.site-header--over .brand .brand-txt{color:var(--paper)}
.site-header--over .nav-toggle{border-color:rgba(236,235,230,.65)}
.site-header--over .nav-toggle span{background:var(--paper)}
.site-header--over.is-scrolled{background:var(--paper);border-color:var(--line);color:var(--ink)}
.site-header--over.is-scrolled .brand .brand-txt{color:var(--graphite)}
.site-header--over.is-scrolled .nav-toggle{border-color:var(--line)}
.site-header--over.is-scrolled .nav-toggle span{background:var(--ink)}
/* swap logo colour for over-hero */
.brand .logo-light{display:none}
.site-header--over:not(.is-scrolled) .brand .logo-dark{display:none}
.site-header--over:not(.is-scrolled) .brand .logo-light{display:block}

/* spacer so fixed header doesn't overlap solid-header pages */
.header-spacer{height:77px}

@media (max-width:820px){
  .nav-toggle{display:flex}
  .site-nav{
    position:absolute;inset:76px 0 auto 0;background:var(--paper);color:var(--ink);
    border-bottom:1px solid var(--line);
    max-height:0;overflow:hidden;transition:max-height .35s ease;
  }
  .site-nav.is-open{max-height:70vh}
  .site-nav ul{flex-direction:column;align-items:flex-start;gap:0;padding:.5rem var(--gutter) 1.5rem}
  .site-nav li{width:100%;border-top:1px solid var(--line)}
  .site-nav a{display:block;padding:1.1rem 0;font-size:var(--step-0)}
  .site-nav a::after{display:none}
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer{background:var(--dark);color:var(--dark-ink)}
.site-footer .foot-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2.5rem;padding-block:clamp(3rem,6vw,5rem)}
.site-footer .brand img{height:30px}
.site-footer .foot-tag{font-family:var(--font-display);font-size:var(--step-2);line-height:1.1;margin-top:1.25rem;max-width:16ch;color:var(--dark-ink)}
.site-footer h4{font-family:var(--font-mono);font-weight:500;font-size:var(--step--1);text-transform:uppercase;letter-spacing:.14em;color:var(--grey-brand);margin-bottom:1rem}
.site-footer ul{list-style:none;padding:0;display:flex;flex-direction:column;gap:.6rem}
.site-footer a{color:#c7c8c3;transition:color .2s ease}
.site-footer a:hover{color:var(--dark-ink)}
.site-footer address{font-style:normal;color:#c7c8c3;line-height:1.7}
.site-footer .foot-bot{display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem;padding-block:1.75rem;border-top:1px solid var(--dark-line);font-family:var(--font-mono);font-size:var(--step--1);color:#8b8d8a}
@media (max-width:720px){.site-footer .foot-top{grid-template-columns:1fr;gap:2rem}}

/* ==========================================================================
   Scroll reveal (only active when JS present; content visible without JS)
   ========================================================================== */
.js .reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.js .reveal.is-visible{opacity:1;transform:none}
.js .reveal[data-delay="1"]{transition-delay:.08s}
.js .reveal[data-delay="2"]{transition-delay:.16s}
.js .reveal[data-delay="3"]{transition-delay:.24s}


/* ==========================================================================
   Home — hero
   ========================================================================== */
.hero{position:relative;min-height:100svh;display:flex;align-items:flex-end;color:var(--dark-ink)}
.hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-scrim{position:absolute;inset:0;background:
  linear-gradient(to bottom,rgba(20,21,23,.62) 0%,rgba(20,21,23,.36) 32%,rgba(20,21,23,.58) 58%,rgba(20,21,23,.82) 100%)}
.hero-inner{position:relative;z-index:1;padding-block:clamp(5rem,12vh,9rem)}
.hero .eyebrow{color:#F5A98E}
.hero .display-1{margin:.45em 0 .35em;color:var(--dark-ink)}
.hero .lead{color:#d6d7d2}
.hero-cta{display:flex;gap:1rem;flex-wrap:wrap;margin-top:2.25rem}
.hero .btn{--b:var(--dark-ink);color:var(--dark-ink)}
.hero .btn--primary{background:var(--paper);color:var(--ink);border-color:var(--paper)}
.hero .btn--primary:hover{background:var(--accent);border-color:var(--accent);color:var(--ink)}
.hero .btn--ghost:hover{background:var(--paper);color:var(--ink)}
.hero-coord{position:absolute;right:var(--gutter);bottom:1.5rem;z-index:1;color:rgba(236,235,230,.55);margin:0}
@media (max-width:600px){.hero-coord{display:none}}
/* mobile hero: drop the tall empty sky above the headline */
@media (max-width:600px){
  .hero{min-height:auto}
  .hero-inner{padding-block:6.5rem 3.25rem}
}
/* mobile: equal-width, full-width stacked CTAs */
@media (max-width:560px){
  .hero-cta{gap:.85rem}
  .hero-cta .btn{width:100%;justify-content:center}
}

/* ==========================================================================
   Home — intro & strengths
   ========================================================================== */
.intro-grid{display:grid;grid-template-columns:1fr 2.2fr;gap:2rem;align-items:start}
@media (max-width:820px){.intro-grid{grid-template-columns:1fr}}

.strengths{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(2rem,4vw,3.5rem);margin-top:3rem}
.strengths article{border-top:1px solid var(--line);padding-top:1.5rem}
.strengths .idx{display:block;color:var(--accent-ink);margin-bottom:2.5rem}
.strengths h3{margin-bottom:.75rem}
@media (max-width:900px){.strengths{grid-template-columns:1fr;gap:2.25rem;margin-top:2.25rem}}

/* ==========================================================================
   Home — process teaser
   ========================================================================== */
.phase-teaser{list-style:none;padding:0;margin-top:3rem;
  display:grid;grid-template-columns:repeat(3,1fr);gap:0 clamp(2rem,4vw,4rem)}
.phase-teaser li{display:flex;align-items:baseline;gap:1rem;
  padding-block:1rem;border-bottom:1px solid var(--dark-line);font-family:var(--font-display);font-weight:500;font-size:var(--step-1)}
.phase-teaser .mono{color:var(--accent)}
@media (max-width:900px){.phase-teaser{grid-template-columns:1fr}}

/* ==========================================================================
   Home — selected work
   ========================================================================== */
.work-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(1rem,2vw,1.75rem);margin-top:3rem}
.work-grid figure{margin:0}
.work-grid img{width:100%;aspect-ratio:3/4;object-fit:cover;filter:saturate(.85);transition:filter .4s ease,transform .4s ease}
.work-grid figure:hover img{filter:saturate(1.05)}
.work-grid figcaption{display:flex;align-items:baseline;gap:.75rem;margin-top:.8rem;
  font-size:var(--step--1);color:var(--graphite);border-top:1px solid var(--line);padding-top:.7rem}
.work-grid figcaption .mono{color:var(--accent-ink)}
@media (max-width:1000px){.work-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.work-grid{grid-template-columns:1fr}}

/* ==========================================================================
   Home — contact band
   ========================================================================== */
.cta-band{display:flex;justify-content:space-between;align-items:flex-end;gap:2.5rem;flex-wrap:wrap}

/* ==========================================================================
   Service phases page
   ========================================================================== */
.page-head .display-1{margin:.4em 0 .35em}

.phase-list{list-style:none;padding:0;margin:0;counter-reset:phase}
.phase{
  display:grid;grid-template-columns:minmax(4.5rem,7rem) 64px 1fr;gap:clamp(1.25rem,3vw,3rem);
  align-items:start;padding-block:clamp(1.75rem,3.5vw,2.75rem);border-bottom:1px solid var(--line);
}
.phase:first-child{border-top:1px solid var(--line)}
.phase-num{
  font-family:var(--font-display);font-weight:700;font-size:var(--step-4);
  line-height:1;color:transparent;-webkit-text-stroke:1.25px var(--graphite);
}
.phase:hover .phase-num{-webkit-text-stroke-color:var(--accent)}
.phase-icon{width:48px;height:48px;object-fit:contain;margin-top:.4rem;opacity:.85}
.phase h2{margin-bottom:.6rem}
.phase p{max-width:56ch}
@media (max-width:720px){
  .phase{grid-template-columns:1fr;gap:.75rem}
  .phase-num{font-size:var(--step-3)}
  .phase-icon{width:40px;height:40px;margin-top:0}
}

/* ==========================================================================
   About page
   ========================================================================== */
.how-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(2rem,4vw,3.5rem);margin-top:3rem}
.how-grid h3{margin-bottom:.75rem}
.how-grid p{color:#c7c8c3;max-width:38ch}
@media (max-width:900px){.how-grid{grid-template-columns:1fr;gap:2.25rem;margin-top:2.25rem}}

/* ==========================================================================
   Contact page
   ========================================================================== */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2.5rem,6vw,6rem);align-items:start}
@media (max-width:900px){.contact-grid{grid-template-columns:1fr}}

.contact-facts{margin-top:3rem;display:flex;flex-direction:column;gap:1.75rem}
.contact-facts div{border-top:1px solid var(--line);padding-top:1.25rem}
.contact-facts dt{color:var(--graphite);text-transform:uppercase;letter-spacing:.14em;margin-bottom:.4rem}
.contact-facts dd{margin:0;font-size:var(--step-1);font-family:var(--font-display);font-weight:500}
.contact-facts address{font-style:normal;line-height:1.5}

.contact-form{display:flex;flex-direction:column;gap:1.5rem;border:1px solid var(--line);padding:clamp(1.5rem,3vw,2.5rem);background:var(--paper-2)}
.field{display:flex;flex-direction:column;gap:.5rem}
.field label{font-family:var(--font-mono);font-size:var(--step--1);text-transform:uppercase;letter-spacing:.12em;color:var(--graphite)}
.field input[type="text"],.field input[type="email"],.field textarea{
  border:0;border-bottom:1px solid var(--graphite);background:transparent;padding:.6em 0;
  font-size:var(--step-0);border-radius:0;transition:border-color .2s ease;
}
.field input:focus,.field textarea:focus{outline:none;border-bottom-color:var(--accent);border-bottom-width:2px}
.field textarea{resize:vertical;min-height:8rem}
.field--check{flex-direction:row;align-items:flex-start;gap:.75rem}
.field--check label{font-family:var(--font-body);text-transform:none;letter-spacing:0;font-size:var(--step--1);line-height:1.5}
.field--check input{width:1.1rem;height:1.1rem;margin-top:.15rem;accent-color:var(--accent)}
.contact-form .btn{align-self:flex-start;margin-top:.5rem}

.map-wrap{border:1px solid var(--line)}
.map-wrap iframe{width:100%;height:clamp(300px,45vw,460px);border:0;display:block;filter:grayscale(.8) contrast(1.02)}
.map-link{padding:.9rem 1.1rem;border-top:1px solid var(--line);margin:0}

/* about head with drafting photo */
.about-head{display:grid;grid-template-columns:1.6fr 1fr;gap:clamp(2rem,5vw,5rem);align-items:end}
.about-fig{margin:0}
.about-fig img{width:100%;aspect-ratio:1/1;object-fit:cover;filter:saturate(.9)}
.about-fig figcaption{margin-top:.8rem;padding-top:.7rem;border-top:1px solid var(--line);color:var(--graphite);font-size:var(--step--1)}
.about-fig .mono{color:var(--accent-ink)}
@media (max-width:820px){.about-head{grid-template-columns:1fr}.about-fig img{aspect-ratio:16/10}}

/* ---- Web Care: core capabilities + tiers ------------------------------- */
.care-cover{display:grid;grid-template-columns:repeat(2,1fr);gap:clamp(1.75rem,4vw,3rem);margin-top:3rem}
.care-cover article{border-top:1px solid var(--line);padding-top:1.5rem}
.care-cover .idx{display:block;color:var(--accent-ink);margin-bottom:1.75rem}
.care-cover h3{margin-bottom:.6rem}
.care-cover p{max-width:46ch}
@media (max-width:760px){.care-cover{grid-template-columns:1fr;gap:1.75rem;margin-top:2.25rem}}

.tiers{display:grid;grid-template-columns:repeat(2,1fr);gap:clamp(1.25rem,3vw,2rem);margin-top:3rem}
.tier{border:1px solid var(--line);background:var(--paper-2);color:var(--ink);padding:clamp(1.5rem,3vw,2.25rem);display:flex;flex-direction:column}
.tier__name,.section--dark .tier__name{color:var(--ink);font-family:var(--font-display);font-size:var(--step-2);font-weight:700;margin-bottom:.5rem}
.tier__base{font-family:var(--font-mono);font-size:var(--step--1);text-transform:uppercase;letter-spacing:.12em;color:var(--accent-ink);margin-bottom:1.75rem}
.tier__list{list-style:none;padding:0;margin:0 0 1.75rem;display:flex;flex-direction:column;gap:.9rem;flex:1}
.tier__list li{position:relative;padding-left:1.6rem;line-height:1.5}
.tier__list li::before{content:"+";position:absolute;left:0;top:0;color:var(--accent-ink);font-family:var(--font-mono);font-weight:500}
.tier__note{font-size:var(--step--1);color:var(--graphite);margin:0}
@media (max-width:760px){.tiers{grid-template-columns:1fr}}