/* ==========================================================================
   Hydrone — stylesheet
   Palette: white + #555555 (charcoal) with #03AEFD (Hydrone blue) accents.
   Type: Space Grotesk (headlines) / Inter (body).
   ========================================================================== */

:root{
  --white: #ffffff;
  --charcoal: #555555;
  --charcoal-dark: #333333;
  --ink: #1c1c1c;
  --mist: #f4f5f6;
  --line: #e2e3e4;
  --blue: #03aefd;
  --blue-dark: #0290d6;
  --blue-tint: #e6f7ff;

  --font-display: "Space Grotesk", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;

  --radius-s: 6px;
  --radius-m: 12px;
  --container: 1180px;
  --gutter: clamp(20px, 5vw, 64px);
}

*, *::before, *::after{ box-sizing: border-box; }

html{ scroll-behavior: smooth; }

body{
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--white);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img{ max-width: 100%; display: block; }

a{ color: inherit; text-decoration: none; }

h1, h2, h3, h4{
  font-family: var(--font-display);
  margin: 0;
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--ink);
}

p{ margin: 0; }

button{ font-family: inherit; cursor: pointer; }

.container{
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

@media (prefers-reduced-motion: reduce){
  *{ animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}

/* Focus visibility -------------------------------------------------------- */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible{
  outline: 2px solid var(--blue);
  outline-offset: 3px;
}

/* Buttons ------------------------------------------------------------------ */
.btn{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition: transform .15s ease, background-color .15s ease, border-color .15s ease;
  white-space: nowrap;
}
.btn:hover{ transform: translateY(-1px); }

.btn-primary{
  background: var(--blue);
  color: var(--white);
}
.btn-primary:hover{ background: var(--blue-dark); }

.btn-secondary{
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}
.btn-secondary:hover{ border-color: var(--charcoal); }

.btn-outline-light{
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,.4);
}
.btn-outline-light:hover{ border-color: var(--white); }

.btn-block{ width: 100%; justify-content: center; }

/* Header -------------------------------------------------------------------*/
.site-header{
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.92);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header .container{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 148px;
}
.brand{
  display: flex;
  align-items: center;
}
.brand img{
  height: 120px;
  width: auto;
}
.main-nav{
  display: flex;
  align-items: center;
  gap: 36px;
}
.main-nav a{
  font-size: 0.98rem;
  font-weight: 500;
  color: var(--charcoal);
  transition: color .15s ease;
}
.main-nav a:hover{ color: var(--ink); }

.header-actions{
  display: flex;
  align-items: center;
  gap: 18px;
}

.lang-switch{
  display: flex;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 3px;
  gap: 2px;
}
.lang-switch button{
  border: none;
  background: transparent;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--charcoal);
  letter-spacing: .02em;
}
.lang-switch button.active{
  background: var(--blue);
  color: var(--white);
}

.nav-toggle{
  display: none;
  border: 1px solid var(--line);
  background: var(--white);
  border-radius: var(--radius-s);
  padding: 8px 10px;
}
.nav-toggle span{
  display: block;
  width: 20px;
  height: 2px;
  background: var(--ink);
  margin: 4px 0;
}

/* Hero -----------------------------------------------------------------*/
.hero{
  padding: 72px 0 96px;
}
.hero .container{
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 64px;
  align-items: center;
}
.hero h1{
  font-size: clamp(2.4rem, 4.6vw, 3.6rem);
}
.hero h1 span{ display: block; }
.hero-desc{
  margin-top: 24px;
  max-width: 46ch;
  color: var(--charcoal);
  font-size: 1.08rem;
}
.hero-actions{
  margin-top: 34px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.hero-stats{
  margin-top: 56px;
  display: flex;
  gap: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}
.stat-value{
  font-family: var(--font-display);
  font-size: 1.7rem;
  color: var(--blue);
  font-weight: 700;
}
.stat-label{
  margin-top: 4px;
  font-size: 0.85rem;
  color: var(--charcoal);
}

.hero-media{
  position: relative;
  border-radius: var(--radius-m);
  overflow: hidden;
  aspect-ratio: 4/5;
  background: var(--mist);
  border: 1px solid var(--line);
}
.hero-media img{
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-media .media-placeholder{
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 8px;
  color: var(--charcoal);
  font-size: 0.9rem;
  text-align: center;
  padding: 24px;
}
.hero-badge{
  position: absolute;
  right: 18px;
  bottom: 18px;
  background: rgba(28,28,28,.88);
  color: var(--white);
  padding: 14px 18px;
  border-radius: var(--radius-s);
  min-width: 168px;
}
.hero-badge .live-dot{
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: .05em;
  color: var(--blue);
}
.hero-badge .live-dot::before{
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--blue);
}
.hero-badge strong{
  display: block;
  margin-top: 4px;
  font-size: 0.98rem;
}
.hero-badge small{
  display: block;
  margin-top: 2px;
  color: rgba(255,255,255,.65);
  font-size: 0.78rem;
}

/* Section shell ----------------------------------------------------------*/
.section{ padding: 88px 0; }
.section-dark{
  background: var(--charcoal-dark);
  color: var(--white);
}
.section-dark .eyebrow{ color: var(--blue); }
.section-dark h2, .section-dark h3{ color: var(--white); }
.section-dark p{ color: rgba(255,255,255,.72); }

.section-head{
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: end;
  margin-bottom: 52px;
}
.eyebrow{
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--blue-dark);
  margin-bottom: 14px;
}
.section-head h2{
  font-size: clamp(1.9rem, 3.4vw, 2.6rem);
}
.section-head .section-desc{
  color: var(--charcoal);
  font-size: 1.02rem;
}

/* Services accordion -------------------------------------------------------*/
.service-list{
  border-top: 1px solid var(--line);
}
.service-item{
  border-bottom: 1px solid var(--line);
}
.service-trigger{
  width: 100%;
  background: transparent;
  border: none;
  padding: 26px 0;
  display: grid;
  grid-template-columns: 40px 220px 1fr 24px;
  align-items: center;
  gap: 24px;
  text-align: left;
  color: var(--ink);
}
.service-trigger:hover .service-name{ color: var(--blue-dark); }
.service-icon{
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue);
  font-size: 1.1rem;
  font-weight: 700;
  transition: transform .2s ease, background-color .2s ease, color .2s ease;
  flex-shrink: 0;
}
.service-item.open .service-icon{
  background: var(--blue);
  color: var(--white);
  transform: rotate(45deg);
}
.service-name{
  font-family: var(--font-display);
  font-size: 1.25rem;
  transition: color .15s ease;
}
.service-short{
  color: var(--charcoal);
  font-size: 0.96rem;
}
.service-arrow{
  justify-self: end;
  color: var(--charcoal);
}
.service-panel{
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows .28s ease;
}
.service-item.open .service-panel{ grid-template-rows: 1fr; }
.service-panel-inner{
  overflow: hidden;
}
.service-panel-content{
  padding: 0 0 30px 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.service-panel-content p{
  max-width: 56ch;
  color: var(--charcoal);
}
.service-panel-content .btn{ flex-shrink: 0; }

/* Why us -------------------------------------------------------------------*/
.why-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
}
.why-points{
  display: flex;
  flex-direction: column;
  gap: 34px;
}
.why-point{
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 16px;
}
.why-letter{
  font-family: var(--font-display);
  color: var(--blue);
  font-weight: 700;
  font-size: 1.1rem;
}
.why-point h3{
  font-size: 1.1rem;
  margin-bottom: 8px;
  color: var(--white);
}
.why-point p{ font-size: 0.96rem; }

.why-media{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.why-media .media-box{
  border-radius: var(--radius-m);
  overflow: hidden;
  aspect-ratio: 3/4;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.12);
  position: relative;
}
.why-media .media-box img{ width: 100%; height: 100%; object-fit: cover; }
.why-media .media-box .media-placeholder{
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,.5);
  font-size: 0.82rem;
  text-align: center;
  padding: 16px;
}

/* Video section ------------------------------------------------------------*/
.video-frame{
  position: relative;
  border-radius: var(--radius-m);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--mist);
  aspect-ratio: 16/9;
  max-width: 900px;
  margin: 0 auto;
}
.video-frame video{
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: #000;
}
.video-placeholder{
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 8px;
  color: var(--charcoal);
  font-size: 0.92rem;
  text-align: center;
  padding: 24px;
}

/* Partners ------------------------------------------------------------- */
.partners-head{
  display: block;
  text-align: center;
  margin-bottom: 44px;
}
.partners-title{
  color: var(--blue);
  font-size: clamp(1.9rem, 3.4vw, 2.6rem);
}
.partners-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px 40px;
  max-width: 820px;
  margin: 0 auto;
}
.partner-logo{
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 90px;
}
.partner-logo img{
  max-height: 70px;
  max-width: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
}
.partner-caption{
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ink);
  text-align: center;
}

/* Projects -------------------------------------------------------------- */
.projects-head{
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.projects-head .section-desc{ max-width: 46ch; color: var(--charcoal); }
.projects-empty{
  border: 1px dashed var(--line);
  border-radius: var(--radius-m);
  padding: 64px 24px;
  text-align: center;
  color: var(--charcoal);
  background: var(--mist);
}

/* Contact CTA band on homepage ------------------------------------------ */
.contact-band{
  background: var(--mist);
  border-radius: var(--radius-m);
  padding: 48px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: center;
}
.contact-band h2{ font-size: 1.7rem; }
.contact-band p{ color: var(--charcoal); margin-top: 8px; }

/* Quote page form --------------------------------------------------------*/
.quote-shell{
  padding: 64px 0 100px;
}
.quote-back{
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--charcoal);
  font-size: 0.92rem;
  margin-bottom: 32px;
}
.quote-back:hover{ color: var(--blue-dark); }

.quote-grid{
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: start;
}
.quote-intro .eyebrow{ color: var(--blue-dark); }
.quote-intro h1{ font-size: clamp(1.9rem, 3.4vw, 2.6rem); margin-bottom: 18px; }
.quote-intro p{ color: var(--charcoal); font-size: 1.02rem; max-width: 42ch; }

.quote-meta{
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.quote-meta-item{
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 0.92rem;
  color: var(--charcoal);
}
.quote-meta-item strong{ color: var(--ink); }

.quote-form{
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  padding: 40px;
}
.form-row{ margin-bottom: 20px; }
.form-row label{
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 8px;
}
.form-row input,
.form-row select,
.form-row textarea{
  width: 100%;
  padding: 13px 15px;
  border-radius: var(--radius-s);
  border: 1px solid var(--line);
  background: var(--white);
  font-family: inherit;
  font-size: 0.98rem;
  color: var(--ink);
}
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus{
  border-color: var(--blue);
}
.form-row textarea{ resize: vertical; min-height: 120px; }
.form-two{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.form-note{
  margin-top: 16px;
  font-size: 0.82rem;
  color: var(--charcoal);
}

.form-success{
  display: none;
  text-align: center;
  padding: 40px 20px;
}
.form-success.visible{ display: block; }
.form-success .check{
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--blue-tint);
  color: var(--blue-dark);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem;
  margin: 0 auto 20px;
}
.form-success h3{ font-size: 1.3rem; margin-bottom: 10px; }
.form-success p{ color: var(--charcoal); }

/* Footer ------------------------------------------------------------------*/
.site-footer{
  background: var(--charcoal-dark);
  color: rgba(255,255,255,.7);
  padding: 56px 0 32px;
}
.footer-grid{
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255,255,255,.12);
}
.footer-brand img{ height: 44px; margin-bottom: 14px; }
.footer-brand p{ max-width: 32ch; font-size: 0.92rem; }
.footer-col h4{
  color: var(--white);
  font-size: 0.9rem;
  margin-bottom: 16px;
}
.footer-col ul{ list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.footer-col a{ font-size: 0.92rem; }
.footer-col a:hover{ color: var(--blue); }
.footer-bottom{
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  flex-wrap: wrap;
  gap: 8px;
}

/* Responsive ---------------------------------------------------------------*/
@media (max-width: 960px){
  .hero .container{ grid-template-columns: 1fr; }
  .hero-media{ order: -1; aspect-ratio: 16/10; }
  .why-grid{ grid-template-columns: 1fr; }
  .section-head{ grid-template-columns: 1fr; }
  .quote-grid{ grid-template-columns: 1fr; }
  .footer-grid{ grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px){
  .main-nav{ display: none; }
  .nav-toggle{ display: block; }
  .service-trigger{ grid-template-columns: 32px 1fr 20px; }
  .service-short{ display: none; }
  .service-panel-content{ padding-left: 44px; }
  .hero-stats{ flex-wrap: wrap; row-gap: 20px; }
  .contact-band{ grid-template-columns: 1fr; text-align: left; }
  .form-two{ grid-template-columns: 1fr; }
  .footer-grid{ grid-template-columns: 1fr; }
  .footer-bottom{ flex-direction: column; }
  .partners-grid{ gap: 32px 40px; }
}

@media (max-width: 560px){
  .partners-grid{ grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px){
  .site-header .container{ height: 100px; }
  .brand img{ height: 80px; }
}