/* ==========================================================================
   Alter Services LLC — Design Tokens
   ========================================================================== */
:root{
  --navy-950:#081422;
  --navy-900:#0C1D30;
  --navy-800:#13293F;
  --navy-700:#1D3B57;
  --red-700:#8F1B29;
  --red-600:#B22234;
  --red-500:#C93A44;
  --white:#FFFFFF;
  --gray-50:#F7F8FA;
  --gray-100:#EDF0F3;
  --gray-200:#E1E6EB;
  --gray-400:#9AA5B1;
  --gray-600:#4B5768;
  --gray-700:#374151;
  --gray-900:#111827;

  --font-display:'Bebas Neue', Impact, sans-serif;
  --font-body:'Source Sans 3', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --space-2:0.5rem;
  --space-3:0.75rem;
  --space-4:1rem;
  --space-5:1.5rem;
  --space-6:2rem;
  --space-8:3rem;
  --space-10:4rem;
  --space-12:5rem;
  --space-16:7rem;

  --radius-sm:6px;
  --radius-md:10px;
  --radius-lg:16px;

  --shadow-sm:0 1px 3px rgba(8,20,34,0.08);
  --shadow-md:0 8px 24px rgba(8,20,34,0.12);
  --shadow-lg:0 20px 48px rgba(8,20,34,0.22);

  --transition:200ms ease;
  --header-h:76px;
}

/* ==========================================================================
   Reset
   ========================================================================== */
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth; scroll-padding-top: var(--header-h);}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:0.01ms !important; animation-iteration-count:1 !important; transition-duration:0.01ms !important;}
}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.65;
  color:var(--gray-700);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%; display:block;}
a{color:inherit; text-decoration:none;}
ul{list-style:none; margin:0; padding:0;}
button{font-family:inherit; cursor:pointer;}
h1,h2,h3,h4{font-family:var(--font-display); letter-spacing:0.02em; margin:0; color:var(--navy-900); line-height:1.05;}
p{margin:0 0 var(--space-4);}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 var(--space-5);
}

.skip-link{
  position:absolute; left:-9999px; top:0;
  background:var(--red-600); color:var(--white);
  padding:var(--space-3) var(--space-5); z-index:1000;
  border-radius:0 0 var(--radius-sm) 0;
}
.skip-link:focus{left:0;}

:focus-visible{
  outline:3px solid var(--red-600);
  outline-offset:2px;
}

.text-white{color:var(--white);}
.text-accent{color:var(--red-500);}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:var(--space-2);
  font-family:var(--font-display);
  letter-spacing:0.04em;
  border-radius:var(--radius-sm);
  border:2px solid transparent;
  padding:0.85rem 1.6rem;
  font-size:1.05rem;
  line-height:1;
  transition:background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
  min-height:44px;
  cursor:pointer;
}
.btn:hover{transform:translateY(-1px);}
.btn-primary{background:var(--red-600); color:var(--white); border-color:var(--red-600);}
.btn-primary:hover{background:var(--red-700); border-color:var(--red-700);}
.btn-outline-light{background:transparent; color:var(--white); border-color:rgba(255,255,255,0.65);}
.btn-outline-light:hover{background:rgba(255,255,255,0.12); border-color:var(--white);}
.btn-lg{padding:1rem 2rem; font-size:1.15rem;}
.btn-sm{padding:0.6rem 1.15rem; font-size:0.95rem;}
.btn-block{width:100%;}
.btn:disabled{opacity:0.6; cursor:not-allowed; transform:none;}

/* ==========================================================================
   Header
   ========================================================================== */
.site-header{
  position:sticky; top:0; z-index:500;
  background:var(--white);
  box-shadow:var(--shadow-sm);
  height:var(--header-h);
  display:flex;
  align-items:center;
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:var(--space-5);
}
.logo{display:flex; flex-direction:column; line-height:0.9;}
.logo-line{font-family:var(--font-display); letter-spacing:0.05em;}
.logo-alter{font-size:1.5rem; color:var(--navy-900);}
.logo-services{font-size:1.1rem; color:var(--red-600);}
.logo-llc{font-size:0.65rem; color:var(--gray-400); letter-spacing:0.15em; vertical-align:middle;}

.main-nav ul{display:flex; gap:var(--space-6);}
.main-nav a{
  font-weight:600; font-size:0.98rem; color:var(--navy-800);
  padding:0.4rem 0.1rem; position:relative;
  transition:color var(--transition);
}
.main-nav a::after{
  content:''; position:absolute; left:0; bottom:-4px; height:2px; width:0;
  background:var(--red-600); transition:width var(--transition);
}
.main-nav a:hover{color:var(--red-600);}
.main-nav a:hover::after{width:100%;}

.header-actions{display:flex; align-items:center; gap:var(--space-5);}
.header-email{
  display:flex; align-items:center; gap:var(--space-2);
  font-size:0.92rem; font-weight:600; color:var(--navy-800);
  white-space:nowrap;
}
.header-email svg{width:18px; height:18px; color:var(--red-600); flex-shrink:0;}
.header-email:hover{color:var(--red-600);}

.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:44px; height:44px;
  background:transparent; border:none;
  padding:0;
}
.nav-toggle span{
  display:block; width:24px; height:2px; margin:0 auto;
  background:var(--navy-900); transition:transform var(--transition), opacity var(--transition);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero{
  position:relative;
  min-height:88vh;
  display:flex;
  align-items:center;
  overflow:hidden;
  color:var(--white);
}
.hero-media{position:absolute; inset:0; z-index:0;}
.hero-media img{width:100%; height:100%; object-fit:cover;}
.hero-overlay{
  position:absolute; inset:0;
  background:linear-gradient(100deg, rgba(8,20,34,0.92) 0%, rgba(8,20,34,0.78) 42%, rgba(8,20,34,0.45) 75%, rgba(8,20,34,0.35) 100%);
}
.hero-inner{position:relative; z-index:1; padding-top:var(--space-12); padding-bottom:var(--space-12); max-width:760px;}
.eyebrow{
  font-family:var(--font-display);
  letter-spacing:0.14em;
  color:var(--red-600);
  font-size:0.95rem;
  margin:0 0 var(--space-3);
}
.eyebrow-light{color:var(--red-500);}
.hero-title{
  font-size:clamp(2.6rem, 6vw, 4.5rem);
  margin-bottom:var(--space-5);
  color:var(--white);
}
.hero-sub{
  font-size:1.15rem;
  max-width:560px;
  color:rgba(255,255,255,0.88);
  margin-bottom:var(--space-6);
}
.hero-cta{display:flex; gap:var(--space-4); flex-wrap:wrap;}

/* ==========================================================================
   Trust strip
   ========================================================================== */
.trust-strip{background:var(--navy-900); padding:var(--space-5) 0;}
.trust-grid{
  display:grid;
  grid-template-columns:repeat(2, 1fr);
  gap:var(--space-4);
}
.trust-item{
  display:flex; align-items:center; gap:var(--space-3);
  color:var(--white); font-weight:600; font-size:0.95rem;
}
.trust-item svg{width:26px; height:26px; color:var(--red-500); flex-shrink:0;}

/* ==========================================================================
   Sections
   ========================================================================== */
.section{padding:var(--space-12) 0;}
.section-dark{background:var(--navy-900);}
.section-muted{background:var(--gray-50);}
.section-head{max-width:680px; margin:0 auto var(--space-10); text-align:center;}
.section-head .eyebrow{justify-content:center;}
.section-sub{color:var(--gray-600); font-size:1.05rem;}
.section-sub-light{color:rgba(255,255,255,0.75);}
.section-dark h2{color:var(--white);}

/* ==========================================================================
   Services
   ========================================================================== */
.services-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:var(--space-5);
}
.service-card{
  background:var(--white);
  border:1px solid var(--gray-200);
  border-radius:var(--radius-lg);
  padding:var(--space-6);
  transition:transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.service-card:hover{transform:translateY(-4px); box-shadow:var(--shadow-md); border-color:transparent;}
.service-icon{
  width:52px; height:52px; border-radius:var(--radius-md);
  background:var(--navy-900);
  display:flex; align-items:center; justify-content:center;
  margin-bottom:var(--space-4);
}
.service-icon svg{width:26px; height:26px; color:var(--red-500);}
.service-card h3{font-size:1.3rem; margin-bottom:var(--space-2); color:var(--navy-900);}
.service-card p{color:var(--gray-600); margin:0;}

/* ==========================================================================
   Why choose us
   ========================================================================== */
.why-grid{display:grid; grid-template-columns:1fr; gap:var(--space-8); align-items:center;}
.why-image img{border-radius:var(--radius-lg); box-shadow:var(--shadow-lg);}
.why-content h2{margin-bottom:var(--space-5);}
.check-list{margin:var(--space-6) 0;}
.check-list li{
  display:flex; align-items:flex-start; gap:var(--space-3);
  color:rgba(255,255,255,0.9);
  padding:var(--space-2) 0;
  font-size:1.02rem;
}
.check-list svg{width:22px; height:22px; color:var(--red-500); flex-shrink:0; margin-top:2px;}

/* ==========================================================================
   About
   ========================================================================== */
.about-grid{display:grid; grid-template-columns:1fr; gap:var(--space-8); align-items:center;}
.about-image img{border-radius:var(--radius-lg); box-shadow:var(--shadow-lg);}
.about-content h2{margin-bottom:var(--space-5);}
.about-content p{color:var(--gray-600);}
.about-stats{display:flex; gap:var(--space-8); margin-top:var(--space-6); flex-wrap:wrap;}
.stat{display:flex; flex-direction:column;}
.stat-num{font-family:var(--font-display); font-size:2.4rem; color:var(--red-600); line-height:1;}
.stat-label{font-size:0.88rem; color:var(--gray-600); margin-top:var(--space-2);}

/* ==========================================================================
   Gallery
   ========================================================================== */
.gallery-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:var(--space-4);
}
.gallery-item{
  position:relative;
  border:none;
  border-radius:var(--radius-md);
  overflow:hidden;
  padding:0;
  aspect-ratio:4/3;
  background:var(--gray-200);
}
.gallery-item img{
  width:100%; height:100%; object-fit:cover;
  transition:transform 400ms ease;
}
.gallery-item:hover img{transform:scale(1.06);}
.gallery-tag{
  position:absolute; left:var(--space-3); bottom:var(--space-3);
  background:rgba(8,20,34,0.85); color:var(--white);
  font-size:0.78rem; font-weight:700; letter-spacing:0.05em;
  padding:0.3rem 0.7rem; border-radius:999px;
}

/* ==========================================================================
   Testimonials
   ========================================================================== */
.testimonial-grid{
  display:grid; grid-template-columns:1fr; gap:var(--space-5);
}
.testimonial-card{
  background:var(--navy-800);
  border-radius:var(--radius-lg);
  padding:var(--space-6);
}
.stars{display:flex; gap:4px; margin-bottom:var(--space-4);}
.stars svg{width:18px; height:18px; color:var(--red-500);}
.testimonial-card p{color:rgba(255,255,255,0.9); font-size:1.02rem;}
.testimonial-author{color:rgba(255,255,255,0.6) !important; font-weight:600; font-size:0.92rem; margin:0 !important;}

/* ==========================================================================
   Service areas
   ========================================================================== */
.area-pills{
  display:flex; flex-wrap:wrap; justify-content:center; gap:var(--space-3);
  max-width:760px; margin:0 auto;
}
.area-pills li{
  background:var(--gray-100); color:var(--navy-900);
  font-weight:700; font-size:0.95rem;
  padding:0.7rem 1.3rem; border-radius:999px;
  border:1px solid var(--gray-200);
}
.area-note{text-align:center; margin-top:var(--space-6); color:var(--gray-600);}
.area-note a{color:var(--red-600); font-weight:700;}
.area-note a:hover{text-decoration:underline;}

/* ==========================================================================
   FAQ
   ========================================================================== */
.faq-list{max-width:760px; margin:0 auto; display:flex; flex-direction:column; gap:var(--space-3);}
.faq-item{
  background:var(--white); border:1px solid var(--gray-200); border-radius:var(--radius-md);
  overflow:hidden;
}
.faq-question{
  width:100%; display:flex; align-items:center; justify-content:space-between;
  background:none; border:none; padding:var(--space-5); text-align:left;
  font-family:var(--font-body); font-weight:700; font-size:1.02rem; color:var(--navy-900);
  min-height:44px;
}
.faq-chevron{width:20px; height:20px; color:var(--red-600); flex-shrink:0; transition:transform var(--transition);}
.faq-question[aria-expanded="true"] .faq-chevron{transform:rotate(180deg);}
.faq-answer{
  max-height:0; overflow:hidden; transition:max-height 300ms ease;
  padding:0 var(--space-5);
}
.faq-answer p{color:var(--gray-600); padding-bottom:var(--space-5); margin:0;}
.faq-item.open .faq-answer{max-height:220px;}

/* ==========================================================================
   Quote / Contact
   ========================================================================== */
.quote-grid{display:grid; grid-template-columns:1fr; gap:var(--space-10);}
.quote-intro h2{margin-bottom:var(--space-4);}
.contact-line{
  display:flex; align-items:center; gap:var(--space-3);
  color:var(--white); font-weight:700; margin-top:var(--space-5);
}
.contact-line svg{width:20px; height:20px; color:var(--red-500);}
.contact-line-static{color:rgba(255,255,255,0.8); font-weight:600;}

.quote-form{
  background:var(--white);
  border-radius:var(--radius-lg);
  padding:var(--space-6);
  box-shadow:var(--shadow-lg);
}
.form-row{display:grid; grid-template-columns:1fr; gap:var(--space-4);}
.form-field{margin-bottom:var(--space-4);}
.form-field label{
  display:block; font-weight:700; font-size:0.92rem; color:var(--navy-900);
  margin-bottom:var(--space-2);
}
.form-field input,
.form-field select,
.form-field textarea{
  width:100%;
  border:1.5px solid var(--gray-200);
  border-radius:var(--radius-sm);
  padding:0.75rem 0.9rem;
  font-family:var(--font-body);
  font-size:1rem;
  color:var(--gray-900);
  background:var(--white);
  min-height:44px;
  transition:border-color var(--transition);
}
.form-field textarea{min-height:110px; resize:vertical;}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus{border-color:var(--navy-800); outline:none;}
.form-field.has-error input,
.form-field.has-error select,
.form-field.has-error textarea{border-color:var(--red-600);}
.field-error{
  color:var(--red-600); font-size:0.85rem; margin:var(--space-2) 0 0;
  display:none;
}
.form-field.has-error .field-error{display:block;}
.form-status{margin-top:var(--space-4); font-weight:700; min-height:1.2em;}
.form-status.success{color:#166534;}
.form-status.error{color:var(--red-600);}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer{background:var(--navy-950); color:rgba(255,255,255,0.7); padding-top:var(--space-10);}
.footer-grid{
  display:grid; grid-template-columns:1fr; gap:var(--space-8);
  padding-bottom:var(--space-10);
}
.footer-brand p{margin-top:var(--space-4); font-size:0.92rem;}
.footer-brand .logo-alter{color:var(--white);}
.footer-col h3{
  color:var(--white); font-size:1.05rem; letter-spacing:0.05em;
  margin-bottom:var(--space-4);
}
.footer-col ul{display:flex; flex-direction:column; gap:var(--space-2);}
.footer-col a{font-size:0.92rem; transition:color var(--transition);}
.footer-col a:hover{color:var(--white);}
.footer-col li{font-size:0.92rem;}
.footer-license{font-size:0.88rem; line-height:1.6;}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.1); padding:var(--space-5) 0;}
.footer-bottom-inner{display:flex; justify-content:center;}
.footer-bottom p{margin:0; font-size:0.85rem;}

/* ==========================================================================
   Lightbox
   ========================================================================== */
.lightbox{
  position:fixed; inset:0; z-index:1000;
  background:rgba(8,20,34,0.94);
  display:flex; align-items:center; justify-content:center;
  padding:var(--space-6);
}
.lightbox[hidden]{display:none;}
.lightbox figure{margin:0; max-width:900px; width:100%;}
.lightbox img{width:100%; border-radius:var(--radius-md); max-height:75vh; object-fit:contain; background:var(--navy-900);}
.lightbox figcaption{color:var(--white); text-align:center; margin-top:var(--space-4); font-weight:600;}
.lightbox-close{
  position:absolute; top:var(--space-6); right:var(--space-6);
  width:44px; height:44px; border-radius:50%;
  background:rgba(255,255,255,0.1); border:none; color:var(--white);
  display:flex; align-items:center; justify-content:center;
}
.lightbox-close:hover{background:rgba(255,255,255,0.2);}
.lightbox-close svg{width:22px; height:22px;}

/* ==========================================================================
   Scroll reveal
   ========================================================================== */
.reveal{opacity:0; transform:translateY(18px); transition:opacity 600ms ease, transform 600ms ease;}
.reveal.is-visible{opacity:1; transform:translateY(0);}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1; transform:none;}
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (min-width: 640px){
  .trust-grid{grid-template-columns:repeat(4, 1fr);}
  .services-grid{grid-template-columns:repeat(2, 1fr);}
  .testimonial-grid{grid-template-columns:repeat(1, 1fr);}
  .form-row{grid-template-columns:1fr 1fr;}
}

@media (min-width: 860px){
  .why-grid{grid-template-columns:1fr 1fr;}
  .about-grid{grid-template-columns:1fr 1fr;}
  .quote-grid{grid-template-columns:0.9fr 1.1fr;}
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr 1fr;}
}

@media (min-width: 1024px){
  .main-nav{display:block;}
  .services-grid{grid-template-columns:repeat(3, 1fr);}
  .service-card-wide{grid-column:span 1;}
  .testimonial-grid{grid-template-columns:repeat(3, 1fr);}
  .gallery-grid{grid-template-columns:repeat(3, 1fr);}
}

@media (max-width: 1023px){
  .main-nav{
    position:fixed; top:var(--header-h); left:0; right:0; bottom:0;
    background:var(--white);
    transform:translateX(100%);
    transition:transform var(--transition);
    overflow-y:auto;
    padding:var(--space-6) var(--space-5);
    z-index:400;
  }
  .main-nav.is-open{transform:translateX(0);}
  .main-nav ul{flex-direction:column; gap:0;}
  .main-nav a{display:block; padding:var(--space-4) 0; font-size:1.15rem; border-bottom:1px solid var(--gray-100);}
  .header-email{display:none;}
  .nav-toggle{display:flex;}
}

@media (max-width: 639px){
  .trust-item{font-size:0.85rem;}
  .hero{min-height:92vh;}
  .btn-lg{width:100%;}
  .hero-cta{flex-direction:column;}
  .gallery-grid{grid-template-columns:1fr 1fr;}
}