/* ==========================================================================
   Dishnam Innovations LLP — Consulting Engagement Page
   Design system: "The Brief" — a working-memo aesthetic for advisory work
   ========================================================================== */

:root{
  /* Color */
  --bg:          #F7F8FA;
  --surface:     #FFFFFF;
  --surface-alt: #EFF2F6;
  --ink:         #12203D;
  --ink-soft:    #4B5566;
  --ink-faint:   #8891A0;
  --line:        #E1E5EC;
  --line-strong: #C7CEDA;
  --gold:        #B8862E;
  --gold-deep:   #8C6521;
  --gold-tint:   #FBF3E4;
  --teal:        #1F7A6C;
  --teal-tint:   #E4F1EE;

  /* Type */
  --font-display: "Fraunces", Georgia, serif;
  --font-body:    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono:    "IBM Plex Mono", "SFMono-Regular", Menlo, monospace;

  /* Layout */
  --maxw: 1180px;
  --pad: 24px;
  --radius: 4px;
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{ margin:0; font-family: var(--font-display); font-weight:600; color:var(--ink); }
p{ margin:0; }
button{ font-family:inherit; cursor:pointer; }

.wrap{
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--pad);
}

.eyebrow{
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold-deep);
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom: 18px;
}
.eyebrow::before{
  content:"";
  width: 22px;
  height: 1px;
  background: var(--gold);
  display:inline-block;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding: 14px 26px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: transform .15s ease, background .2s ease, color .2s ease, border-color .2s ease;
  white-space: nowrap;
}
.btn:active{ transform: translateY(1px); }
.btn-primary{
  background: var(--ink);
  color: #fff;
}
.btn-primary:hover{ background: var(--gold-deep); }
.btn-outline{
  background: transparent;
  border-color: var(--line-strong);
  color: var(--ink);
}
.btn-outline:hover{ border-color: var(--ink); }
.btn-block{ width:100%; }

/* ---------- Header ---------- */
.site-header{
  position: sticky;
  top:0;
  z-index: 100;
  background: rgba(247,248,250,0.92);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height: 76px;
  gap: 16px;
}
.brand{ display:flex; flex-direction:column; line-height:1.05; min-width:0; overflow:hidden; }
.brand-name{
  font-family: var(--font-display);
  font-weight:700;
  font-size: 20px;
  letter-spacing: 0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.brand-sub{
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-top:3px;
}

.main-nav{ display:flex; align-items:center; gap:36px; }
.main-nav a{
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-soft);
  position:relative;
  padding: 4px 0;
}
.main-nav a:hover{ color: var(--ink); }
.main-nav a::after{
  content:"";
  position:absolute;
  left:0; right:0; bottom:-2px;
  height:1px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin:left;
  transition: transform .2s ease;
}
.main-nav a:hover::after{ transform: scaleX(1); }

.header-actions{ display:flex; align-items:center; gap:14px; flex: none; }
.phone-pill{
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink-soft);
  display:flex;
  align-items:center;
  gap:8px;
}
.phone-pill svg{ width:15px; height:15px; stroke: var(--gold-deep); }

.menu-toggle{
  display:none;
  background:none;
  border:none;
  width: 36px; height: 36px;
  position:relative;
}
.menu-toggle span{
  position:absolute; left:7px; right:7px; height:2px; background:var(--ink);
  transition: transform .25s ease, opacity .25s ease;
}
.menu-toggle span:nth-child(1){ top:12px; }
.menu-toggle span:nth-child(2){ top:18px; }
.menu-toggle span:nth-child(3){ top:24px; }
.menu-toggle.active span:nth-child(1){ transform: translateY(6px) rotate(45deg); }
.menu-toggle.active span:nth-child(2){ opacity:0; }
.menu-toggle.active span:nth-child(3){ transform: translateY(-6px) rotate(-45deg); }
.nav-cta{ display:none; }

/* ---------- Hero ---------- */
.hero{
  padding: 72px 0 0;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.hero-grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  padding-bottom: 72px;
}
.hero h1{
  font-size: clamp(34px, 4.4vw, 54px);
  line-height: 1.12;
  letter-spacing: -0.01em;
  max-width: 15ch;
}
.hero h1 em{
  font-style: italic;
  color: var(--gold-deep);
}
.hero-sub{
  margin-top: 22px;
  font-size: 17px;
  color: var(--ink-soft);
  max-width: 46ch;
}
.hero-cta{
  display:flex;
  gap:16px;
  margin-top: 34px;
  flex-wrap: wrap;
}

/* Hero visual: duotone photo with rotating logo badge */
.hero-visual{
  position: relative;
}
.hero-photo{
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4 / 5;
  background: var(--ink);
}
.hero-photo img{
  width:100%; height:100%;
  object-fit: cover;
  filter: grayscale(1) contrast(1.05);
  mix-blend-mode: luminosity;
  opacity: 0.9;
}
.hero-photo::after{
  content:"";
  position:absolute; inset:0;
  background: linear-gradient(160deg, rgba(18,32,61,0.78) 0%, rgba(184,134,46,0.35) 55%, rgba(31,122,108,0.55) 100%);
  mix-blend-mode: multiply;
}
.hero-photo::before{
  content:"";
  position:absolute; inset:0;
  background: linear-gradient(0deg, rgba(18,32,61,0.5), transparent 45%);
  z-index:2;
}

/* Rotating logo badge over the hero photo */
.logo-badge{
  position: absolute;
  left: 28px;
  bottom: 28px;
  width: 104px;
  height: 104px;
  z-index: 4;
  display:flex;
  align-items:center;
  justify-content:center;
}
.logo-badge .ring{
  position:absolute;
  inset:0;
  border-radius:50%;
}
.logo-badge .ring-outer{
  border: 1px dashed rgba(255,255,255,0.55);
  animation: badge-spin 16s linear infinite;
}
.logo-badge .ring-inner{
  inset: 14px;
  border: 1.5px solid var(--gold);
  border-right-color: transparent;
  border-bottom-color: transparent;
  animation: badge-spin-reverse 9s linear infinite;
}
.logo-badge .core{
  position: relative;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--surface);
  display:flex;
  align-items:center;
  justify-content:center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.02em;
  color: var(--ink);
  box-shadow: 0 10px 24px -6px rgba(18,32,61,0.45);
}
@keyframes badge-spin{
  from{ transform: rotate(0deg); }
  to{ transform: rotate(360deg); }
}
@keyframes badge-spin-reverse{
  from{ transform: rotate(360deg); }
  to{ transform: rotate(0deg); }
}

/* ---------- Section shell ---------- */
section{ padding: 80px 0; }
.section-head{
  max-width: 640px;
  margin-bottom: 48px;
}
.section-head h2{
  font-size: clamp(26px, 3vw, 36px);
  line-height:1.2;
}
.section-head p{
  margin-top:14px;
  color: var(--ink-soft);
  font-size: 16px;
}

.section-alt{ background: var(--surface-alt); }

/* ---------- Services (clause layout) ---------- */
.clause-grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.clause-col{
  background: var(--surface);
  padding: 40px;
}
.clause-photo{
  width: 100%;
  aspect-ratio: 16/8;
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 28px;
  position: relative;
  background: var(--ink);
}
.clause-photo img{
  width:100%; height:100%; object-fit: cover;
  filter: grayscale(1);
  mix-blend-mode: luminosity;
  opacity: 0.92;
}
.clause-photo::after{
  content:"";
  position:absolute; inset:0;
  background: linear-gradient(120deg, rgba(184,134,46,0.55), rgba(18,32,61,0.75));
  mix-blend-mode: multiply;
}
.clause-col.teal .clause-photo::after{
  background: linear-gradient(120deg, rgba(31,122,108,0.55), rgba(18,32,61,0.75));
}
.clause-photo span{
  position:absolute; left:18px; bottom:14px;
  z-index:2;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: #fff;
}
.clause-head{
  display:flex;
  align-items:baseline;
  gap:12px;
  margin-bottom: 26px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}
.clause-num{
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--gold-deep);
}
.clause-col.teal .clause-num{ color: var(--teal); }
.clause-head h3{ font-size: 21px; }

.clause-item{
  display:flex;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}
.clause-item:last-child{ border-bottom:none; padding-bottom:0; }
.clause-item:first-of-type{ padding-top:0; }
.clause-tag{
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--ink-faint);
  min-width: 34px;
  padding-top: 2px;
}
.clause-body h4{
  font-family: var(--font-body);
  font-size: 15.5px;
  font-weight: 600;
  margin-bottom: 4px;
}
.clause-body p{
  font-size: 14.5px;
  color: var(--ink-soft);
}

/* ---------- Approach (process) ---------- */
.approach-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}
.approach-step{
  position:relative;
  padding-top: 20px;
  border-top: 2px solid var(--ink);
}
.approach-step .step-num{
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--gold-deep);
  display:block;
  margin-bottom: 14px;
}
.approach-step h4{
  font-size: 17.5px;
  margin-bottom: 10px;
}
.approach-step p{
  font-size: 14.5px;
  color: var(--ink-soft);
}

/* ---------- Positioning strip ---------- */
.strip{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.strip-item{
  padding: 30px 26px;
  border-left: 1px solid var(--line);
}
.strip-item:first-child{ border-left:none; }
.strip-item h5{
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--gold-deep);
  margin-bottom: 10px;
}
.strip-item p{ font-size: 14.5px; color: var(--ink-soft); }

/* ---------- Industries slider (auto-scrolling marquee) ---------- */
.industries{ padding: 64px 0; }
.industries .section-head{ margin-bottom: 36px; }
.marquee{
  position: relative;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
}
.marquee-track{
  display:flex;
  width: max-content;
  gap: 20px;
  animation: marquee-scroll 32s linear infinite;
}
.marquee:hover .marquee-track{ animation-play-state: paused; }
.industry-card{
  position: relative;
  width: 240px;
  aspect-ratio: 4/3;
  border-radius: var(--radius);
  overflow: hidden;
  flex: none;
  background: var(--ink);
}
.industry-card img{
  width:100%; height:100%; object-fit: cover;
  filter: grayscale(1);
  mix-blend-mode: luminosity;
  opacity: .92;
}
.industry-card::after{
  content:"";
  position:absolute; inset:0;
  background: linear-gradient(200deg, rgba(18,32,61,0.15) 20%, rgba(18,32,61,0.88) 100%);
  mix-blend-mode: multiply;
}
.industry-card em{
  position:absolute; left:16px; bottom:14px; right:16px;
  z-index:2;
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .05em;
  text-transform: uppercase;
  color: #fff;
}
@keyframes marquee-scroll{
  from{ transform: translateX(0); }
  to{ transform: translateX(-50%); }
}

/* ---------- Testimonials slider ---------- */
.slider{
  position: relative;
  max-width: 760px;
  margin: 0 auto;
}
.slider-track-wrap{ overflow:hidden; }
.slider-track{
  display:flex;
  transition: transform .5s cubic-bezier(.65,0,.35,1);
}
.quote-card{
  flex: 0 0 100%;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 40px;
  display:flex;
  flex-direction:column;
  gap: 18px;
}
.quote-mark{
  font-family: var(--font-display);
  font-size: 44px;
  color: var(--gold);
  line-height:1;
}
.quote-card p.quote-text{
  font-size: 17px;
  color: var(--ink-soft);
  line-height:1.65;
}
.quote-who{ display:flex; align-items:center; gap:14px; font-size: 13.5px; }
.quote-who img{
  width:44px; height:44px; border-radius:50%;
  object-fit:cover;
  filter: grayscale(0.35);
  border: 2px solid var(--gold-tint);
}
.quote-who strong{ display:block; color: var(--ink); font-size:14.5px; }
.quote-who span{ color: var(--ink-faint); font-size: 12.5px; }

.slider-controls{
  display:flex;
  align-items:center;
  justify-content:center;
  gap: 22px;
  margin-top: 30px;
}
.slider-arrow{
  width: 40px; height:40px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  display:flex; align-items:center; justify-content:center;
  transition: border-color .2s ease, background .2s ease;
}
.slider-arrow svg{ width:16px; height:16px; stroke: var(--ink); }
.slider-arrow:hover{ border-color: var(--ink); background: var(--ink); }
.slider-arrow:hover svg{ stroke: #fff; }
.slider-dots{ display:flex; gap:9px; }
.slider-dot{
  width:8px; height:8px; border-radius:50%;
  background: var(--line-strong);
  border: none;
  padding:0;
  transition: background .2s ease, transform .2s ease;
}
.slider-dot.active{ background: var(--gold-deep); transform: scale(1.25); }

/* ---------- Contact ---------- */
.contact-grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items:start;
}
.contact-info h2{ font-size: clamp(26px,3vw,36px); margin-bottom:14px; }
.contact-info > p{ color:var(--ink-soft); margin-bottom: 34px; max-width: 42ch; }

.info-list{ display:flex; flex-direction:column; gap:22px; }
.info-item{ display:flex; gap:16px; align-items:flex-start; }
.info-icon{
  width:38px; height:38px; flex:none;
  border-radius: var(--radius);
  background: var(--gold-tint);
  display:flex; align-items:center; justify-content:center;
}
.info-icon svg{ width:18px; height:18px; stroke: var(--gold-deep); }
.info-item h5{ font-family: var(--font-mono); font-size:11.5px; text-transform:uppercase; letter-spacing:.06em; color:var(--ink-faint); margin-bottom:4px; }
.info-item p, .info-item a{ font-size:15px; color:var(--ink); font-weight:600; }
.info-item a:hover{ color: var(--gold-deep); }

.form-card{
  background: var(--surface);
  border:1px solid var(--line);
  border-radius: var(--radius);
  padding: 36px;
}
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:18px; }
.field{ margin-bottom:18px; }
.field label{
  display:block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--ink-faint);
  margin-bottom: 8px;
}
.field input,
.field select,
.field textarea{
  width:100%;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--bg);
  padding: 12px 14px;
  font-family: var(--font-body);
  font-size: 14.5px;
  color: var(--ink);
  transition: border-color .2s ease, background .2s ease;
}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline: none;
  border-color: var(--gold);
  background: #fff;
}
.field textarea{ resize: vertical; min-height: 110px; }
.hp-field{ position:absolute; left:-9999px; top:-9999px; }

.form-msg{
  margin-top: 16px;
  font-size: 14px;
  padding: 12px 14px;
  border-radius: var(--radius);
  display:none;
}
.form-msg.show{ display:block; }
.form-msg.ok{ background: var(--teal-tint); color: var(--teal); }
.form-msg.err{ background: #FBEAEA; color: #B23A3A; }

/* ---------- Footer ---------- */
.site-footer{
  background: var(--ink);
  color: #C9D1E0;
  padding: 56px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.footer-brand .brand-name{ color:#fff; }
.footer-brand p{ margin-top: 14px; font-size: 14px; color: #9AA6BC; max-width: 34ch; }
.footer-col h5{
  font-family: var(--font-mono);
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: #7C89A3;
  margin-bottom: 16px;
}
.footer-col a, .footer-col p{
  display:block;
  font-size: 14px;
  color: #C9D1E0;
  margin-bottom: 10px;
}
.footer-col a:hover{ color: #fff; }
.footer-bottom{
  padding-top: 24px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  font-size: 13px;
  color: #7C89A3;
  flex-wrap: wrap;
  gap: 10px;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

/* Tablet */
@media (max-width: 1024px){
  .hero-grid{ grid-template-columns: 1fr; gap: 44px; padding-bottom: 56px; }
  .hero-visual{ order:-1; max-width: 420px; margin: 0 auto; }
  .logo-badge{ width: 84px; height: 84px; left: 20px; bottom: 20px; }
  .logo-badge .core{ width: 48px; height: 48px; font-size: 14px; }
  .clause-grid{ grid-template-columns: 1fr; }
  .approach-grid{ grid-template-columns: repeat(2, 1fr); gap: 36px 28px; }
  .strip{ grid-template-columns: repeat(2, 1fr); }
  .strip-item:nth-child(3){ border-left:none; }
  .strip-item{ border-bottom: 1px solid var(--line); }
  .strip-item:nth-child(3), .strip-item:nth-child(4){ border-bottom:none; }
  .slider{ max-width: 100%; }
  .contact-grid{ grid-template-columns: 1fr; gap: 44px; }
  .footer-grid{ grid-template-columns: 1fr 1fr; }
  .footer-brand{ grid-column: span 2; }
}

/* Mobile nav + tablet nav collapse */
@media (max-width: 900px){
  .main-nav{
    position: absolute;
    top: 100%; left:0; right:0;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 8px var(--pad) 18px;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity .2s ease, transform .2s ease;
    max-height: 80vh;
    overflow-y: auto;
  }
  .main-nav.open{ opacity:1; transform: translateY(0); pointer-events:auto; }
  .main-nav a{ width:100%; padding: 13px 0; border-bottom: 1px solid var(--line); }
  .main-nav a::after{ display:none; }
  .main-nav a.nav-cta{
    border-bottom: none;
    padding: 14px 26px;
    margin-top: 10px;
  }
  .phone-pill{ display:none; }
  .menu-toggle{ display:block; flex: none; }
  .nav-cta{ display:none; }
}

@media (max-width: 560px){
  .header-actions .btn-primary{ display:none; }
  .nav-cta{
    display:flex;
    margin-top: 14px;
    width: 100%;
  }
}

/* Mobile */
@media (max-width: 640px){
  :root{ --pad: 18px; }
  section{ padding: 56px 0; }
  .hero{ padding: 40px 0 0; }
  .hero-grid{ padding-bottom: 48px; }
  .hero-cta{ flex-direction:column; align-items:stretch; }
  .hero-cta .btn{ width:100%; }
  .hero-visual{ max-width: none; }
  .logo-badge{ width: 76px; height: 76px; left: 16px; bottom: 16px; }
  .logo-badge .core{ width: 44px; height: 44px; font-size: 13px; }
  .clause-col{ padding: 26px 22px; }
  .clause-photo{ aspect-ratio: 16/9; }
  .industry-card{ width: 190px; }
  .slider-track-wrap .quote-card{ padding: 28px 24px; }
  .approach-grid{ grid-template-columns: 1fr; gap: 30px; }
  .strip{ grid-template-columns: 1fr; }
  .strip-item{ border-left:none !important; border-bottom: 1px solid var(--line); }
  .strip-item:last-child{ border-bottom:none; }
  .form-row{ grid-template-columns: 1fr; gap:0; }
  .form-card{ padding: 24px; }
  .footer-grid{ grid-template-columns: 1fr; gap: 30px; }
  .footer-brand{ grid-column: span 1; }
  .footer-bottom{ flex-direction: column; align-items:flex-start; }
  .brand-name{ font-size: 18px; }
}

@media (max-width: 480px){
  .brand-sub{ display:none; }
  .brand-name{ font-size: 16px; }
  .site-header .wrap{ height: 64px; gap: 10px; }
  .header-actions{ gap: 8px; }
}
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *{ transition-duration: 0.001ms !important; animation-duration: 0.001ms !important; }
}

/* Visible keyboard focus */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible{
  outline: 2px solid var(--gold-deep);
  outline-offset: 2px;
}