/* =========================================================
   Altitude Exterior Systems — Design System
   ========================================================= */

/* ---------- Tokens ---------- */
:root {
  --navy:       #0E1F2F;
  --slate:      #1F3345;
  --teal:       #2BB7BE;
  --teal-deep:  #1F8A8F;
  --steel:      #6B7C8C;
  --gray:       #B8C0C8;
  --white:      #FFFFFF;
  --offwhite:   #F3F5F7;

  --font-heading: 'Manrope', system-ui, -apple-system, sans-serif;
  --font-body:    'Inter', system-ui, -apple-system, sans-serif;

  --radius-sm: 2px;
  --radius-md: 4px;

  --shadow-sm: 0 1px 2px rgba(14,31,47,0.08);
  --shadow-md: 0 8px 24px rgba(14,31,47,0.12);
  --shadow-lg: 0 16px 48px rgba(14,31,47,0.18);

  --container: 1200px;
  --container-narrow: 880px;
}

/* ---------- Reset / Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--navy);
  background: var(--white);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; display: block; }
a { color: var(--navy); }
a:focus-visible, button:focus-visible, .btn:focus-visible {
  outline: 2px solid var(--teal); outline-offset: 3px;
}

/* ---------- Typography ---------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  margin: 0; line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--navy);
}
h1 { font-weight: 800; font-size: clamp(2.4rem, 5vw, 3.8rem); }
h2 { font-weight: 700; font-size: clamp(1.9rem, 3.2vw, 2.6rem); letter-spacing: -0.025em; }
h3 { font-weight: 700; font-size: 1.35rem; }
h4 { font-weight: 600; font-size: 1.05rem; }
p  { margin: 0 0 1rem; }

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 0.85rem;
}

/* ---------- Layout ---------- */
.container { max-width: var(--container); margin: 0 auto; padding: 0 1.5rem; }
.container-narrow { max-width: var(--container-narrow); margin: 0 auto; padding: 0 1.5rem; }
.section   { padding: 5rem 0; }
.section-tight { padding: 3.5rem 0; }
.section-alt { background: var(--offwhite); }
.section-dark { background: var(--navy); color: var(--white); }
.section-dark h1, .section-dark h2, .section-dark h3, .section-dark h4 { color: var(--white); }
.section-dark p { color: var(--gray); }

/* ---------- Header ---------- */
.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--gray);
  position: sticky; top: 0; z-index: 100;
}
.site-header .container {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 1rem; padding-bottom: 1rem;
}
.logo-mark { display: block; height: 64px; width: auto; }
.nav { display: flex; gap: 2rem; align-items: center; }
.nav a {
  color: var(--navy); text-decoration: none; font-weight: 500; font-size: 0.95rem;
  transition: color 0.15s;
}
.nav a:hover, .nav a[aria-current="page"] { color: var(--teal); }
.header-utility { display: flex; align-items: center; gap: 1rem; }
.header-phone {
  color: var(--steel); font-size: 0.9rem; font-weight: 500;
  text-decoration: none;
}
.header-phone strong { color: var(--navy); }
.header-phone:hover strong { color: var(--teal); }

/* Mobile menu toggle */
.menu-toggle {
  display: none; background: none; border: none; cursor: pointer;
  width: 40px; height: 40px; padding: 8px;
}
.menu-toggle span {
  display: block; width: 100%; height: 2px; background: var(--navy);
  margin: 5px 0; transition: transform 0.2s;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.85rem 1.5rem;
  font-family: var(--font-body); font-weight: 600; font-size: 0.95rem;
  text-decoration: none; cursor: pointer; border: 2px solid transparent;
  border-radius: var(--radius-md); transition: all 0.15s ease;
  letter-spacing: 0.01em;
}
.btn-sm { padding: 0.6rem 1.1rem; font-size: 0.85rem; }
.btn-primary { background: var(--teal); color: var(--navy); border-color: var(--teal); }
.btn-primary:hover { background: var(--white); color: var(--navy); border-color: var(--teal); }
.btn-secondary { background: transparent; color: var(--navy); border-color: var(--navy); }
.btn-secondary:hover { background: var(--navy); color: var(--white); }
.btn-ghost { background: transparent; color: var(--navy); padding-left: 0; padding-right: 0; border-color: transparent; }
.btn-ghost:hover { color: var(--teal); }
.btn-ghost::after { content: " →"; transition: transform 0.15s; }
.btn-ghost:hover::after { transform: translateX(3px); }
.btn-on-dark { background: var(--teal); color: var(--navy); border-color: var(--teal); }
.btn-on-dark:hover { background: transparent; color: var(--teal); border-color: var(--teal); }
.btn-outline-light { background: transparent; color: var(--white); border-color: rgba(255,255,255,0.3); }
.btn-outline-light:hover { background: var(--white); color: var(--navy); border-color: var(--white); }

/* ---------- Hero (immersive, video-ready, scroll-driven fade) ---------- */
.hero {
  position: relative;
  height: calc(100vh - 97px);    /* fallback — accounts for sticky header */
  height: calc(100dvh - 97px);   /* modern: handles mobile address bar */
  min-height: 580px;
  overflow: hidden;
  background: var(--navy);
  color: var(--white);
}
/* Layer 1: animated background (placeholder for <video>)
   To swap in a real video, replace <div class="hero-bg"></div> with:
     <video class="hero-bg" autoplay muted loop playsinline poster="assets/hero-poster.jpg">
       <source src="assets/hero.mp4" type="video/mp4">
     </video>
   The styles below apply to both div and video. */
.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  background:
    radial-gradient(ellipse at 25% 35%, rgba(43, 183, 190, 0.20), transparent 55%),
    radial-gradient(ellipse at 75% 65%, rgba(43, 183, 190, 0.10), transparent 50%),
    linear-gradient(135deg, #0a1620 0%, #0E1F2F 40%, #1F3345 100%);
  animation: heroBgDrift 24s ease-in-out infinite alternate;
  will-change: transform;
}
@keyframes heroBgDrift {
  0%   { transform: scale(1.05) translate(0, 0); }
  100% { transform: scale(1.12) translate(-2%, -1%); }
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(43, 183, 190, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(43, 183, 190, 0.07) 1px, transparent 1px);
  background-size: 80px 80px;
  animation: heroGridDrift 60s linear infinite;
  opacity: 0.6;
  will-change: transform;
  pointer-events: none;
}
@keyframes heroGridDrift {
  0%   { transform: translate(0, 0); }
  100% { transform: translate(80px, 80px); }
}
.hero-particles {
  position: absolute; inset: 0;
  pointer-events: none;
  overflow: hidden;
}
.hero-particles span {
  position: absolute;
  width: 4px; height: 4px;
  background: var(--teal);
  border-radius: 50%;
  opacity: 0;
  box-shadow: 0 0 12px var(--teal);
  animation: heroFloat 8s linear infinite;
}
.hero-particles span:nth-child(1)  { left: 12%; top: 80%; animation-delay: 0s;   animation-duration: 9s;  }
.hero-particles span:nth-child(2)  { left: 28%; top: 90%; animation-delay: 1.2s; animation-duration: 7s;  }
.hero-particles span:nth-child(3)  { left: 45%; top: 85%; animation-delay: 0.6s; animation-duration: 10s; }
.hero-particles span:nth-child(4)  { left: 62%; top: 95%; animation-delay: 2.4s; animation-duration: 8s;  }
.hero-particles span:nth-child(5)  { left: 78%; top: 85%; animation-delay: 1.8s; animation-duration: 11s; }
.hero-particles span:nth-child(6)  { left: 88%; top: 80%; animation-delay: 3.0s; animation-duration: 9s;  }
.hero-particles span:nth-child(7)  { left: 18%; top: 88%; animation-delay: 4.2s; animation-duration: 8s;  }
.hero-particles span:nth-child(8)  { left: 52%; top: 92%; animation-delay: 5.4s; animation-duration: 10s; }
@keyframes heroFloat {
  0%   { transform: translateY(0) scale(1);   opacity: 0; }
  10%  { opacity: 0.9; }
  90%  { opacity: 0.4; }
  100% { transform: translateY(-110vh) scale(0.4); opacity: 0; }
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(14, 31, 47, 0.35) 0%, rgba(14, 31, 47, 0.55) 50%, rgba(14, 31, 47, 0.85) 100%);
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.hero .eyebrow {
  color: var(--teal);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease 0.3s, transform 0.7s ease 0.3s;
}
body.loaded .hero .eyebrow { opacity: 1; transform: translateY(0); }
.hero h1 {
  color: var(--white);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(2.75rem, 6.5vw, 5.5rem);
  line-height: 1.02;
  letter-spacing: -0.025em;
  margin: 0 0 1.5rem;
  max-width: 900px;
}
.hero h1 .word {
  display: inline-block;
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s cubic-bezier(0.2, 0.7, 0.2, 1), transform 0.8s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.hero h1 .word.accent { color: var(--teal); }
body.loaded .hero h1 .word { opacity: 1; transform: translateY(0); }
body.loaded .hero h1 .word:nth-child(1) { transition-delay: 0.60s; }
body.loaded .hero h1 .word:nth-child(2) { transition-delay: 0.69s; }
body.loaded .hero h1 .word:nth-child(3) { transition-delay: 0.78s; }
body.loaded .hero h1 .word:nth-child(4) { transition-delay: 0.87s; }
body.loaded .hero h1 .word:nth-child(5) { transition-delay: 0.96s; }
body.loaded .hero h1 .word:nth-child(6) { transition-delay: 1.05s; }
body.loaded .hero h1 .word:nth-child(7) { transition-delay: 1.14s; }
body.loaded .hero h1 .word:nth-child(8) { transition-delay: 1.23s; }
.hero-sub {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: clamp(1.1rem, 1.6vw, 1.35rem);
  color: rgba(255, 255, 255, 0.78);
  max-width: 620px;
  line-height: 1.55;
  margin: 0 0 2.5rem;
  letter-spacing: 0;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease 1.5s, transform 0.8s ease 1.5s;
}
body.loaded .hero-sub { opacity: 1; transform: translateY(0); }
.hero-cta {
  margin-top: 0;
  display: flex; gap: 1rem; flex-wrap: wrap;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease 1.8s, transform 0.8s ease 1.8s;
}
body.loaded .hero-cta { opacity: 1; transform: translateY(0); }
.hero-utility {
  position: absolute;
  bottom: 2rem; left: 0; right: 0;
  z-index: 2;
  opacity: 0;
  transition: opacity 1s ease 2.2s;
}
body.loaded .hero-utility { opacity: 1; }
.hero-utility .container {
  display: flex; align-items: center; justify-content: space-between;
}
.hero-scroll-cue {
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-family: var(--font-heading);
  font-weight: 600;
  display: flex; align-items: center; gap: 0.5rem;
  animation: heroScrollPulse 2.2s ease-in-out infinite;
}
.hero-scroll-cue::after {
  content: '';
  display: inline-block;
  width: 1px; height: 28px;
  background: linear-gradient(180deg, rgba(255,255,255,0.6), transparent);
}
@keyframes heroScrollPulse {
  0%, 100% { opacity: 0.5; transform: translateY(0); }
  50%      { opacity: 1;   transform: translateY(6px); }
}
.hero-content,
.hero-utility,
.hero-bg,
.hero-overlay {
  will-change: transform, opacity;
}

/* Page-load fade-in mask (covers everything then fades out) */
.load-mask {
  position: fixed;
  inset: 0;
  background: #000;
  z-index: 9999;
  opacity: 1;
  pointer-events: none;
  transition: opacity 1s ease;
}
body.loaded .load-mask { opacity: 0; }

/* Scroll-reveal helper (apply .reveal to any section to fade up on scroll) */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 1s ease, transform 1s ease;
}
.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .hero-bg, .hero-grid, .hero-particles span, .hero-scroll-cue,
  .hero .eyebrow, .hero h1 .word, .hero-sub, .hero-cta, .hero-utility,
  .reveal, .load-mask {
    animation: none !important;
    transition: opacity 0.2s !important;
    transform: none !important;
  }
}

/* Subpage hero (smaller, used on inner pages) */
.subhero {
  background: var(--navy); color: var(--white);
  padding: 4.5rem 0 3.5rem; position: relative; overflow: hidden;
}
.subhero::before {
  content: ''; position: absolute; inset: 0; opacity: 0.08;
  background-image:
    repeating-linear-gradient(45deg, transparent, transparent 22px, var(--teal) 22px, var(--teal) 23px),
    repeating-linear-gradient(-45deg, transparent, transparent 22px, var(--teal) 22px, var(--teal) 23px);
}
.subhero .container { position: relative; z-index: 2; }
.subhero h1 { color: var(--white); }
.subhero p { color: var(--gray); max-width: 640px; margin-top: 1rem; }

/* ---------- Trust strip ---------- */
.trust-strip {
  background: var(--slate); color: var(--gray);
  padding: 1.25rem 0;
  font-size: 0.85rem; font-weight: 500;
  letter-spacing: 0.08em; text-transform: uppercase;
}
.trust-strip .container {
  display: flex; flex-wrap: wrap; gap: 1.5rem 2rem;
  justify-content: center; align-items: center;
}
.trust-strip .dot { color: var(--teal); }

/* ---------- Stats / By the Numbers ---------- */
.stats {
  background: var(--navy); color: var(--white);
  padding: 4.5rem 0;
  position: relative; overflow: hidden;
}
.stats::before {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  opacity: 0.06;
  background-image:
    repeating-linear-gradient(45deg, transparent, transparent 22px, var(--teal) 22px, var(--teal) 23px),
    repeating-linear-gradient(-45deg, transparent, transparent 22px, var(--teal) 22px, var(--teal) 23px);
}
.stats .container { position: relative; z-index: 2; }
.stats h2 { color: var(--white); }
.stats-intro { color: var(--gray); max-width: 640px; margin-top: 0.5rem; margin-bottom: 2.5rem; }
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0;
  border-top: 1px solid rgba(255,255,255,0.12);
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.stat {
  padding: 2rem 1.5rem;
  border-right: 1px solid rgba(255,255,255,0.08);
}
.stat:last-child { border-right: none; }
.stat-num {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  color: var(--teal);
  line-height: 1;
  letter-spacing: -0.03em;
  display: block;
}
.stat-num small {
  font-size: 0.5em; color: var(--gray); font-weight: 600; margin-left: 0.15em;
}
.stat-label {
  margin-top: 0.75rem; font-size: 0.95rem; color: var(--gray); font-weight: 500;
}

/* ---------- Process ---------- */
.process { background: var(--white); }
.process-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0;
  margin-top: 2rem;
}
.process-step {
  padding: 1.75rem 1.5rem 1.75rem 1.5rem;
  border-left: 2px solid var(--gray);
  position: relative;
  transition: border-left-color 0.2s;
}
.process-step:hover { border-left-color: var(--teal); }
.process-num {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  color: var(--teal);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}
.process-step h4 { font-size: 1.1rem; margin-bottom: 0.5rem; }
.process-step p { color: var(--steel); font-size: 0.95rem; margin: 0; }

/* ---------- Service cards ---------- */
.card-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem;
  margin-top: 2rem;
}
.service-card {
  background: var(--white);
  border: 1px solid var(--gray);
  border-radius: var(--radius-md);
  padding: 2rem;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
  display: flex; flex-direction: column;
}
.service-card:hover {
  border-color: var(--teal);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.service-card.featured {
  background: var(--navy); color: var(--white);
  border-color: var(--navy);
}
.service-card.featured h3 { color: var(--white); }
.service-card.featured .card-eyebrow { color: var(--teal); }
.service-card.featured p { color: var(--gray); }
.card-eyebrow {
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--teal); margin-bottom: 0.75rem;
}
.service-card p { color: var(--steel); margin-bottom: 1.25rem; flex-grow: 1; }
.service-card a.btn-ghost { align-self: flex-start; margin-top: auto; }

.svc-icon {
  width: 56px; height: 56px;
  background: rgba(43,183,190,0.10);
  color: var(--teal);
  border-radius: var(--radius-md);
  display: inline-flex; align-items: center; justify-content: center;
  margin-bottom: 1.25rem;
}
.featured .svc-icon { background: rgba(43,183,190,0.22); }
.svc-icon svg { width: 30px; height: 30px; }

/* ---------- Problem / Value cards ---------- */
.problem-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem;
  margin-top: 2.5rem;
}
@media (max-width: 1000px) {
  .problem-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
  .problem-grid { grid-template-columns: 1fr; }
}
.problem-card {
  background: var(--offwhite);
  padding: 2rem;
  border-radius: var(--radius-md);
  border-top: 3px solid var(--teal);
}
.problem-card h3 { margin-bottom: 0.75rem; font-size: 1.25rem; }
.problem-card p { color: var(--steel); margin: 0; }
.problem-card .strike {
  color: var(--steel);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  display: block;
}
.problem-card .strike s { color: rgba(107,124,140,0.7); }

/* ---------- Industry tiles ---------- */
.industry-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1rem;
  margin-top: 2rem;
}
.industry-tile {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  border-radius: var(--radius-md);
  color: var(--white);
  background: var(--slate);
  text-decoration: none;
  display: block;
  transition: transform 0.3s ease;
}
.industry-tile:hover { transform: translateY(-4px); }
.industry-tile::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(14,31,47,0.4) 30%, rgba(14,31,47,0.92) 100%);
  z-index: 1;
  transition: background 0.3s;
}
.industry-tile:hover::before {
  background: linear-gradient(180deg, rgba(14,31,47,0.5) 30%, rgba(14,31,47,0.96) 100%);
}
.industry-tile img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover;
  filter: saturate(0.7) brightness(0.85);
  transition: transform 0.6s ease;
}
.industry-tile:hover img { transform: scale(1.05); }
.industry-tile-content {
  position: absolute; inset: 0; z-index: 2;
  padding: 1.5rem; display: flex; flex-direction: column; justify-content: flex-end;
}
.industry-tile h4 { color: var(--white); margin-bottom: 0.25rem; font-size: 1.1rem; }
.industry-tile p { font-size: 0.85rem; color: rgba(255,255,255,0.85); margin: 0; }

/* ---------- Why Drone teaser block ---------- */
.why-drone-block {
  display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center;
}
.why-drone-list { list-style: none; padding: 0; margin: 1.5rem 0 0; }
.why-drone-list li {
  padding: 1rem 0;
  border-bottom: 1px solid var(--gray);
  display: grid; grid-template-columns: 32px 1fr; gap: 1rem; align-items: start;
}
.why-drone-list li:last-child { border-bottom: none; }
.why-drone-list li::before {
  content: '+'; color: var(--teal); font-family: var(--font-heading);
  font-weight: 700; font-size: 1.5rem; line-height: 1;
}
.why-drone-list strong { display: block; font-family: var(--font-heading); font-weight: 700; color: var(--navy); margin-bottom: 0.25rem; }
.why-drone-list span { color: var(--steel); font-size: 0.95rem; }
.why-drone-visual {
  background: var(--navy); color: var(--white);
  padding: 3rem; border-radius: var(--radius-md);
  position: relative; overflow: hidden;
  min-height: 320px;
  display: flex; flex-direction: column; justify-content: space-between;
}
.why-drone-visual::before {
  content: ''; position: absolute; inset: 0; opacity: 0.10;
  background-image:
    repeating-linear-gradient(45deg, transparent, transparent 22px, var(--teal) 22px, var(--teal) 23px),
    repeating-linear-gradient(-45deg, transparent, transparent 22px, var(--teal) 22px, var(--teal) 23px);
}
.why-drone-visual > * { position: relative; z-index: 2; }
.why-drone-visual blockquote {
  font-family: var(--font-heading); font-weight: 600;
  font-size: 1.4rem; line-height: 1.4; color: var(--white);
  margin: 0; max-width: 24ch;
}
.why-drone-visual cite {
  display: block; margin-top: 1rem; color: var(--gray);
  font-size: 0.9rem; font-style: normal; letter-spacing: 0.08em; text-transform: uppercase;
}

/* ---------- Maintenance teaser CTA card ---------- */
.cta-card {
  background: var(--navy); color: var(--white);
  border-radius: var(--radius-md);
  padding: 3rem;
  display: grid; grid-template-columns: 2fr 1fr; gap: 2rem; align-items: center;
  position: relative; overflow: hidden;
}
.cta-card::before {
  content: ''; position: absolute; inset: 0; opacity: 0.08;
  background-image:
    repeating-linear-gradient(45deg, transparent, transparent 22px, var(--teal) 22px, var(--teal) 23px);
}
.cta-card > * { position: relative; z-index: 2; }
.cta-card h2 { color: var(--white); margin: 0; font-size: 1.8rem; }
.cta-card p { color: var(--gray); margin: 0.75rem 0 0; }
.cta-card .actions { text-align: right; }

/* ---------- Featured project placeholder ---------- */
.project-feature {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0;
  background: var(--offwhite);
  border-radius: var(--radius-md); overflow: hidden;
}
.project-feature .image {
  background: var(--slate);
  position: relative; min-height: 360px;
  background-image:
    linear-gradient(135deg, rgba(14,31,47,0.3) 0%, rgba(14,31,47,0.7) 100%),
    url('https://images.unsplash.com/photo-1497366216548-37526070297c?auto=format&fit=crop&w=1200&q=70');
  background-size: cover; background-position: center;
}
.project-feature .image::after {
  content: 'COMING SOON';
  position: absolute; bottom: 1rem; left: 1rem;
  font-family: ui-monospace, monospace; font-size: 0.7rem;
  letter-spacing: 0.16em; color: rgba(255,255,255,0.6);
  border: 1px solid rgba(255,255,255,0.2);
  padding: 0.35rem 0.65rem; border-radius: 2px;
}
.project-feature .body {
  padding: 3rem;
  display: flex; flex-direction: column; justify-content: center;
}
.project-feature .body h2 { font-size: 1.6rem; margin-bottom: 0.5rem; }
.project-feature .body .meta {
  font-family: ui-monospace, monospace; font-size: 0.8rem;
  letter-spacing: 0.12em; color: var(--steel); text-transform: uppercase;
  margin-bottom: 0.5rem;
}

/* ---------- Final CTA ---------- */
.final-cta {
  background: var(--navy); color: var(--white);
  padding: 5rem 0;
  text-align: center;
  position: relative; overflow: hidden;
}
.final-cta::before {
  content: ''; position: absolute; inset: 0; opacity: 0.08;
  background-image:
    repeating-linear-gradient(45deg, transparent, transparent 22px, var(--teal) 22px, var(--teal) 23px);
}
.final-cta .container { position: relative; z-index: 2; }
.final-cta h2 { color: var(--white); max-width: 720px; margin: 0 auto 1rem; }
.final-cta p { color: var(--gray); max-width: 560px; margin: 0 auto 2rem; }
.final-cta .actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ---------- Where-it-applies 3-column ---------- */
.applies-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem;
  margin-top: 2rem;
}
.applies-col h4 {
  font-size: 0.85rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 1rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--gray);
}
.applies-col ul { list-style: none; padding: 0; margin: 0; }
.applies-col li {
  padding: 0.4rem 0;
  color: var(--navy);
  font-size: 0.95rem;
}

/* ---------- Founder block (About page) ---------- */
.founder-block {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 2.5rem;
  align-items: start;
  max-width: 960px;
}
.founder-photo {
  width: 220px;
  height: 220px;
  border-radius: var(--radius-md);
  background: var(--offwhite);
  border: 1px solid var(--gray);
  overflow: hidden;
  display: flex; align-items: center; justify-content: center;
  position: sticky; top: 90px;
}
.founder-photo img { width: 100%; height: 100%; object-fit: cover; }
.founder-photo-placeholder {
  display: flex; align-items: center; justify-content: center;
  width: 100%; height: 100%;
  color: var(--steel);
}
.founder-content h2 { margin-top: 0.25rem; margin-bottom: 0.25rem; }
.founder-title {
  color: var(--teal);
  font-weight: 600;
  font-size: 1.05rem;
  margin: 0 0 1.5rem;
}
.founder-creds {
  list-style: none;
  padding: 0;
  margin: 1.75rem 0 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem 1.5rem;
  border-top: 1px solid var(--gray);
  padding-top: 1.5rem;
}
.founder-creds li {
  color: var(--steel);
  font-size: 0.95rem;
  line-height: 1.5;
}
.founder-creds li strong { color: var(--navy); display: block; font-size: 0.85rem; letter-spacing: 0.04em; text-transform: uppercase; margin-bottom: 0.1rem; }
@media (max-width: 720px) {
  .founder-block { grid-template-columns: 1fr; gap: 1.5rem; }
  .founder-photo { width: 160px; height: 160px; position: static; }
  .founder-creds { grid-template-columns: 1fr; }
}

/* ---------- Compliance box ---------- */
.compliance-box {
  background: var(--offwhite);
  border-left: 4px solid var(--teal);
  padding: 2rem 2.25rem;
  border-radius: var(--radius-md);
  margin-top: 2rem;
}
.compliance-box h3 { margin-bottom: 0.5rem; font-size: 1.15rem; }
.compliance-box > p { color: var(--steel); margin-bottom: 1rem; }
.compliance-list { list-style: none; padding: 0; margin: 0; }
.compliance-list li {
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--gray);
  display: grid; grid-template-columns: 22px 1fr; gap: 0.75rem;
  color: var(--steel); font-size: 0.95rem;
}
.compliance-list li:last-child { border-bottom: none; }
.compliance-list li::before {
  content: '✓'; color: var(--teal); font-weight: 700;
}
.compliance-list strong { color: var(--navy); }

/* ---------- Comparison table ---------- */
.comparison {
  margin-top: 2rem;
  background: var(--white);
  border: 1px solid var(--gray);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.comparison-row {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  border-bottom: 1px solid var(--gray);
}
.comparison-row:last-child { border-bottom: none; }
.comparison-row > div {
  padding: 1rem 1.25rem;
  font-size: 0.95rem;
}
.comparison-row.head {
  background: var(--navy);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.comparison-row.head > div { color: var(--gray); }
.comparison-row.head > div:first-child { color: var(--white); }
.comparison-row.head > div:nth-child(2) { color: var(--teal); }
.comparison-row .label {
  background: var(--offwhite);
  font-weight: 600;
  color: var(--navy);
  font-size: 0.9rem;
}
.comparison-row .aes {
  background: rgba(43, 183, 190, 0.06);
  color: var(--navy);
  font-weight: 600;
}
.comparison-row .other { color: var(--steel); }
@media (max-width: 800px) {
  .comparison-row { grid-template-columns: 1fr; }
  .comparison-row.head { display: none; }
  .comparison-row > div { border-bottom: 1px solid var(--gray); padding: 0.85rem 1.25rem; }
  .comparison-row > div:last-child { border-bottom: none; }
  .comparison-row .label { font-size: 0.78rem; letter-spacing: 0.14em; text-transform: uppercase; padding-top: 1rem; padding-bottom: 0.5rem; }
  .comparison-row .aes::before { content: 'AES Drone — '; font-weight: 700; color: var(--teal); }
  .comparison-row .other.lift::before { content: 'Boom Lift — '; font-weight: 700; color: var(--steel); }
  .comparison-row .other.rope::before { content: 'Rope Access — '; font-weight: 700; color: var(--steel); }
}

/* ---------- Sticky floating CTAs (call + quote) ---------- */
.sticky-cta {
  position: fixed; right: 1.25rem; bottom: 1.25rem; z-index: 200;
  display: flex; flex-direction: column; gap: 0.6rem; align-items: flex-end;
  pointer-events: none;
}
.sticky-cta > * { pointer-events: auto; }
.sticky-cta-btn {
  display: inline-flex; align-items: center; gap: 0.55rem;
  padding: 0.85rem 1.4rem;
  border-radius: 999px;
  font-family: var(--font-body); font-weight: 700; font-size: 0.95rem;
  text-decoration: none;
  box-shadow: 0 6px 20px rgba(14,31,47,0.28);
  transition: transform 0.15s, box-shadow 0.15s, background 0.15s;
  white-space: nowrap;
  border: 2px solid transparent;
}
.sticky-cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(14,31,47,0.34);
}
.sticky-cta-btn.quote {
  background: var(--teal); color: var(--navy);
  border-color: var(--teal);
}
.sticky-cta-btn.call {
  background: var(--white); color: var(--navy);
  border-color: var(--gray);
}
.sticky-cta-btn.call:hover { border-color: var(--teal); color: var(--teal); }
.sticky-cta-btn svg { width: 18px; height: 18px; flex-shrink: 0; }

/* On desktop, hide the call button (phone is already in header) */
.sticky-cta .call-only-mobile { display: none; }
@media (max-width: 800px) {
  .sticky-cta .call-only-mobile { display: inline-flex; }
  .sticky-cta { right: 0.75rem; bottom: 0.75rem; gap: 0.5rem; }
  .sticky-cta-btn { padding: 0.75rem 1.15rem; font-size: 0.9rem; }
}

/* ---------- Quote modal (opens from sticky CTA) ---------- */
.quote-modal-backdrop {
  position: fixed; inset: 0; z-index: 300;
  background: rgba(14,31,47,0.7);
  display: none; align-items: center; justify-content: center;
  padding: 1.5rem; opacity: 0; transition: opacity 0.2s;
}
.quote-modal-backdrop.is-open { display: flex; opacity: 1; }
.quote-modal {
  background: var(--white);
  border-radius: var(--radius-md);
  max-width: 480px; width: 100%;
  padding: 2rem;
  position: relative;
  box-shadow: var(--shadow-lg);
  max-height: 90vh; overflow-y: auto;
}
.quote-modal h3 { font-size: 1.4rem; margin-bottom: 0.5rem; }
.quote-modal .lede { color: var(--steel); font-size: 0.95rem; margin-bottom: 1.5rem; }
.quote-modal-close {
  position: absolute; top: 0.75rem; right: 0.75rem;
  background: none; border: none; cursor: pointer;
  width: 36px; height: 36px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--steel); font-size: 1.5rem; line-height: 1;
  transition: background 0.15s, color 0.15s;
}
.quote-modal-close:hover { background: var(--offwhite); color: var(--navy); }
.quote-modal-form .form-field { margin-bottom: 1rem; }
.quote-modal-form .form-field input,
.quote-modal-form .form-field select,
.quote-modal-form .form-field textarea {
  width: 100%;
  font-family: var(--font-body); font-size: 1rem;
  color: var(--navy);
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--gray);
  border-radius: var(--radius-md);
  background: var(--white);
  transition: border-color 0.15s, box-shadow 0.15s;
}
.quote-modal-form .form-field input:focus,
.quote-modal-form .form-field select:focus,
.quote-modal-form .form-field textarea:focus {
  outline: none; border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(43,183,190,0.15);
}
.quote-modal-form .form-field label {
  display: block; font-size: 0.85rem; font-weight: 600;
  color: var(--navy); margin-bottom: 0.35rem;
}
.quote-modal-form .form-field .required { color: var(--teal); margin-left: 0.15em; font-weight: 700; }
.quote-modal-form textarea { min-height: 80px; resize: vertical; }
.quote-modal-form button[type="submit"] {
  width: 100%; margin-top: 0.5rem;
}
.quote-modal-form .helper-note {
  text-align: center; font-size: 0.85rem; color: var(--steel);
  margin-top: 0.85rem;
}

/* ---------- Hero trust strip (sits at bottom of immersive hero) ---------- */
.hero-trust {
  display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem;
  margin-top: 0;
  font-size: 0.78rem; font-weight: 600; letter-spacing: 0.1em;
  text-transform: uppercase; color: rgba(255,255,255,0.55);
  font-family: var(--font-heading);
}
.hero-trust span:not(.dot) {
  white-space: nowrap;
  display: flex; align-items: center; gap: 0.5rem;
}
.hero-trust span:not(.dot)::before {
  content: '';
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--teal);
}
.hero-trust .dot { display: none; }
@media (max-width: 700px) {
  .hero-utility .hero-trust { display: none; }
}

/* ---------- Sector tiles (home page top) ---------- */
.sector-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem;
  margin-top: 2rem;
}
.sector-tile {
  position: relative;
  background: var(--white);
  border: 1px solid var(--gray);
  border-radius: var(--radius-md);
  padding: 2rem;
  text-decoration: none;
  display: flex; flex-direction: column;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
  min-height: 220px;
  overflow: hidden;
}
.sector-tile:hover {
  border-color: var(--teal);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.sector-tile.featured {
  background: var(--navy); color: var(--white);
  border-color: var(--navy);
}
.sector-tile.featured h3 { color: var(--white); }
.sector-tile.featured .sector-eyebrow { color: var(--teal); }
.sector-tile.featured p { color: var(--gray); }
.sector-tile.coming {
  background: var(--offwhite);
  border-style: dashed;
}
.sector-tile.coming .sector-eyebrow { color: var(--steel); }
.sector-eyebrow {
  font-size: 0.7rem; font-weight: 700; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--teal);
  margin-bottom: 0.85rem;
}
.sector-tile h3 {
  font-size: 1.4rem; margin-bottom: 0.6rem; line-height: 1.2;
}
.sector-tile p { color: var(--steel); margin: 0; flex-grow: 1; font-size: 0.95rem; }
.sector-tile .arrow {
  margin-top: 1.25rem; color: var(--teal); font-weight: 700;
  font-family: var(--font-heading); font-size: 0.9rem;
  letter-spacing: 0.04em;
}
.sector-tile.featured .arrow { color: var(--teal); }
.sector-tile.coming .arrow { color: var(--steel); }

@media (max-width: 900px) { .sector-grid { grid-template-columns: 1fr; } }

/* ---------- FAQ accordion (native <details>/<summary>) ---------- */
.faq-list {
  margin-top: 2rem;
  border-top: 1px solid var(--gray);
}
.faq-item {
  border-bottom: 1px solid var(--gray);
}
.faq-question {
  list-style: none;            /* Firefox: hide default disclosure triangle */
  width: 100%;
  padding: 1.25rem 0;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--navy);
  cursor: pointer;
  display: flex; justify-content: space-between; align-items: center;
  gap: 1rem;
  transition: color 0.15s;
}
.faq-question::-webkit-details-marker { display: none; } /* Safari/Chrome: hide default marker */
.faq-question::marker { content: ''; }                  /* belt-and-suspenders */
.faq-question:hover { color: var(--teal); }
.faq-question:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 4px;
  border-radius: 2px;
}
.faq-question::after {
  content: '+';
  color: var(--teal);
  font-size: 1.5rem;
  font-weight: 700;
  flex-shrink: 0;
  transition: transform 0.2s ease;
}
.faq-item[open] .faq-question::after { transform: rotate(45deg); }
.faq-answer {
  color: var(--steel);
  font-size: 0.98rem;
  line-height: 1.6;
  padding: 0 0 1.5rem 0;
}
.faq-answer p { margin: 0 0 0.85rem; }
.faq-answer p:last-child { margin-bottom: 0; }
.faq-answer strong { color: var(--navy); }

/* ---------- Forms (contact page) ---------- */
.form-grid {
  display: grid; grid-template-columns: 1.6fr 1fr; gap: 3rem; align-items: start;
}
.form-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem;
}
.form-field { margin-bottom: 1.25rem; }
.form-field label,
.form-field legend {
  display: block;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--navy);
  margin-bottom: 0.5rem;
  letter-spacing: 0.02em;
  padding: 0;
}
.form-field .required { color: var(--teal); margin-left: 0.15em; font-weight: 700; }
.form-field input[type="text"],
.form-field input[type="email"],
.form-field input[type="tel"],
.form-field select,
.form-field textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--navy);
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--gray);
  border-radius: var(--radius-md);
  background: var(--white);
  transition: border-color 0.15s, box-shadow 0.15s;
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(43,183,190,0.15);
}
.form-field textarea { resize: vertical; min-height: 120px; }
.form-field .helper {
  font-size: 0.85rem; color: var(--steel); margin-top: 0.4rem;
}

.checkbox-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem;
  margin-top: 0.4rem;
  padding: 0; border: 0;
}
.checkbox-item {
  display: flex; align-items: center; gap: 0.6rem;
  padding: 0.6rem 0.85rem;
  border: 1px solid var(--gray);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.checkbox-item:hover { border-color: var(--teal); }
.checkbox-item input[type="checkbox"] {
  margin: 0; accent-color: var(--teal);
  width: 16px; height: 16px;
}
.checkbox-item:has(input:checked) {
  border-color: var(--teal);
  background: rgba(43,183,190,0.06);
}
.checkbox-item span { font-size: 0.95rem; color: var(--navy); }

.honeypot { position: absolute; left: -9999px; visibility: hidden; }

.form-submit {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--gray);
  display: flex; gap: 1rem; align-items: center; flex-wrap: wrap;
}
.form-submit button {
  font-family: var(--font-body);
  cursor: pointer;
}
.form-submit small { color: var(--steel); font-size: 0.85rem; }

/* Contact sidebar */
.contact-sidebar {
  background: var(--offwhite);
  border-radius: var(--radius-md);
  padding: 2rem;
  position: sticky; top: 6rem;
}
.contact-sidebar h3 {
  font-size: 1.1rem; margin-bottom: 1.25rem;
  letter-spacing: 0;
}
.contact-sidebar dl { margin: 0; }
.contact-sidebar dt {
  font-family: var(--font-heading); font-weight: 700;
  font-size: 0.7rem; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--teal);
  margin-bottom: 0.3rem;
}
.contact-sidebar dd {
  margin: 0 0 1.25rem;
  font-size: 1rem;
  color: var(--navy);
}
.contact-sidebar dd a {
  color: var(--navy); text-decoration: none; font-weight: 600;
}
.contact-sidebar dd a:hover { color: var(--teal); }
.contact-sidebar .promise {
  background: var(--white);
  border-left: 4px solid var(--teal);
  padding: 1rem 1.25rem;
  margin-top: 1.5rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  color: var(--steel);
  line-height: 1.5;
}
.contact-sidebar .promise strong { color: var(--navy); }
.contact-sidebar .badges-list {
  list-style: none; padding: 0; margin: 1.25rem 0 0;
  border-top: 1px solid var(--gray);
  padding-top: 1.25rem;
}
.contact-sidebar .badges-list li {
  padding: 0.35rem 0;
  font-size: 0.78rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--steel); font-weight: 600;
}
.contact-sidebar .badges-list li::before { content: '✓ '; color: var(--teal); margin-right: 0.3em; }

@media (max-width: 900px) {
  .form-grid { grid-template-columns: 1fr; }
  .contact-sidebar { position: static; }
}
@media (max-width: 600px) {
  .form-row { grid-template-columns: 1fr; }
  .checkbox-grid { grid-template-columns: 1fr; }
}

/* Thank-you page */
.thanks-block {
  text-align: center; max-width: 640px; margin: 0 auto;
}
.thanks-block .icon-circle-large {
  width: 84px; height: 84px;
  background: rgba(43,183,190,0.12);
  color: var(--teal);
  border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  margin: 0 auto 1.5rem;
  font-size: 2.5rem; font-weight: 700;
}
.thanks-block h1 { margin-bottom: 1rem; }
.thanks-block p { color: var(--steel); font-size: 1.05rem; max-width: 520px; margin: 0 auto 1rem; }
.thanks-block .actions { margin-top: 2rem; display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ---------- Filter chips (projects page) ---------- */
.filter-chips {
  display: flex; flex-wrap: wrap; gap: 0.5rem;
  margin: 1.5rem 0 2rem;
}
.filter-chip {
  font-size: 0.85rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--gray);
  border-radius: 999px;
  background: var(--white);
  color: var(--steel);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.15s;
}
.filter-chip:hover, .filter-chip.is-active {
  border-color: var(--teal);
  color: var(--teal);
  background: rgba(43, 183, 190, 0.06);
}
.filter-chip.disabled {
  opacity: 0.5; cursor: not-allowed; pointer-events: none;
}

/* ---------- Capability tile (projects page) ---------- */
.capability-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem;
  margin-top: 1.5rem;
}
.capability-tile {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  border-radius: var(--radius-md);
  background: var(--slate);
}
.capability-tile::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(14,31,47,0.2) 30%, rgba(14,31,47,0.85) 100%);
  z-index: 1;
}
.capability-tile img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; filter: saturate(0.7) brightness(0.85);
}
.capability-tile-content {
  position: absolute; left: 1rem; right: 1rem; bottom: 1rem; z-index: 2;
  color: var(--white);
}
.capability-tile-content .label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 0.25rem;
}
.capability-tile-content .name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.05rem;
}
@media (max-width: 800px) {
  .capability-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px) {
  .capability-grid { grid-template-columns: 1fr; }
}

/* ---------- Service area map (about page) ---------- */
.service-area-map {
  background: var(--navy);
  color: var(--white);
  border-radius: var(--radius-md);
  padding: 2.5rem;
  position: relative; overflow: hidden;
}
.service-area-map::before {
  content: ''; position: absolute; inset: 0; opacity: 0.08;
  background-image:
    repeating-linear-gradient(45deg, transparent, transparent 22px, var(--teal) 22px, var(--teal) 23px),
    repeating-linear-gradient(-45deg, transparent, transparent 22px, var(--teal) 22px, var(--teal) 23px);
}
.service-area-map > * { position: relative; z-index: 2; }
.service-area-map h3 { color: var(--white); margin-bottom: 1rem; }
.area-list { list-style: none; padding: 0; margin: 1.5rem 0 0; columns: 2; column-gap: 2rem; }
.area-list li {
  padding: 0.4rem 0;
  color: var(--gray);
  font-size: 0.95rem;
  break-inside: avoid;
}
.area-list li::before { content: '◢ '; color: var(--teal); margin-right: 0.4em; }
@media (max-width: 600px) { .area-list { columns: 1; } }

/* ---------- Tier comparison (maintenance page) ---------- */
.tier-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem;
  margin-top: 2rem;
}
.tier-card {
  background: var(--white);
  border: 1px solid var(--gray);
  border-radius: var(--radi