/* ============================================================
   MAITRA SOLAR SOLUTIONS — 2026 REFINEMENT LAYER
   Final visual/accessibility/performance pass.
   This file intentionally sits after the legacy cascade so the
   existing working system can be refined without a rebuild.
   ============================================================ */

:root {
  --ms-ink: #071321;
  --ms-navy: #0b1d33;
  --ms-blue: #1e5f9f;
  --ms-blue-bright: #3d8ad1;
  --ms-solar: #ffc400;
  --ms-paper: #f7fafc;
  --ms-white: #fff;
  --ms-muted: #617386;
  --ms-line: rgba(16, 42, 67, .12);
  --ms-line-strong: rgba(16, 42, 67, .18);
  --ms-shadow: 0 22px 60px rgba(7, 25, 45, .10);
  --ms-radius: 3px;
  --ms-content: 1240px;
  --ms-gutter: clamp(18px, 4vw, 64px);
  --ms-fast: 180ms cubic-bezier(.2,.8,.2,1);
  --ms-medium: 420ms cubic-bezier(.2,.8,.2,1);
}

html { scroll-padding-top: 20px; }
body { background: var(--ms-ink); }

/* ---------- Shared interaction language ---------- */
button,
a { -webkit-tap-highlight-color: transparent; }

.btn {
  min-height: 44px;
  border-radius: var(--ms-radius);
  font-weight: 700;
  transition:
    transform var(--ms-fast),
    border-color var(--ms-fast),
    background-color var(--ms-fast),
    color var(--ms-fast),
    box-shadow var(--ms-fast);
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary { box-shadow: 0 10px 28px rgba(255, 196, 0, .16); }

:focus-visible {
  outline: 2px solid var(--ms-solar);
  outline-offset: 4px;
}

/* ---------- Hero: preserve the video, improve the composition ---------- */
.hero {
  min-height: 100svh;
  height: 100svh;
  background: #cfdbe3;
  isolation: isolate;
}

.hero-media,
.hero-video,
.hero-poster {
  width: 100%;
  height: 100%;
}

.hero-video,
.hero-poster {
  object-fit: cover;
  object-position: center center;
}

.hero-video {
  transform: translateZ(0) scale(1.002);
  backface-visibility: hidden;
}

.hero-poster {
  opacity: 1;
  transition: opacity 800ms cubic-bezier(.2,.8,.2,1);
}

.hero.is-playing .hero-poster { opacity: 0; }
.hero.is-fallback .hero-video { visibility: hidden; }

.hero-overlay {
  background:
    linear-gradient(90deg,
      rgba(4, 18, 34, .72) 0%,
      rgba(4, 18, 34, .44) 26%,
      rgba(4, 18, 34, .12) 52%,
      rgba(4, 18, 34, 0) 76%),
    linear-gradient(180deg,
      rgba(4, 16, 29, .18) 0%,
      rgba(4, 16, 29, 0) 44%,
      rgba(4, 16, 29, .52) 100%),
    radial-gradient(72% 64% at 50% 42%, rgba(23, 93, 160, .10), transparent 72%);
}

.hero-grid-bg {
  opacity: .038;
  background-size: 80px 80px;
  mask-image: linear-gradient(90deg, #000 0%, rgba(0,0,0,.25) 34%, transparent 66%);
  -webkit-mask-image: linear-gradient(90deg, #000 0%, rgba(0,0,0,.25) 34%, transparent 66%);
}

.hero-content {
  width: min(var(--ms-content), calc(100% - 2 * var(--ms-gutter)));
  padding-top: clamp(20px, 4.4svh, 56px);
  padding-bottom: clamp(118px, 15svh, 150px);
}

.hero-brand-row {
  align-items: flex-start;
  gap: 0;
  margin-bottom: clamp(18px, 4svh, 42px);
}

.hero-brand {
  width: clamp(116px, 10vw, 154px);
  min-width: 0;
  height: auto;
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
  filter: drop-shadow(0 7px 14px rgba(4, 18, 32, .22));
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.hero-brand-logo { max-height: 92px; }

.hero-eyebrow {
  display: block !important;
  position: absolute;
  top: clamp(22px, 4svh, 42px);
  right: 0;
  max-width: 46vw;
  margin: 0;
  color: var(--ms-solar);
  font: 700 clamp(.48rem, .58vw, .64rem)/1.45 var(--font-mono);
  letter-spacing: .18em;
  text-transform: uppercase;
  text-align: right;
  text-shadow: 0 2px 14px rgba(0,0,0,.35);
}

.hero-copy {
  width: min(680px, 58vw);
  margin-top: auto;
  margin-bottom: clamp(20px, 4svh, 36px);
}

.hero-kicker {
  margin-bottom: 10px;
  color: #64aaf0;
  font: 800 clamp(.55rem, .68vw, .7rem)/1.2 var(--font-mono);
  letter-spacing: .20em;
  text-transform: uppercase;
  text-shadow: 0 2px 12px rgba(0,0,0,.32);
}

.hero-title {
  max-width: 12.5ch;
  margin-bottom: clamp(13px, 2svh, 20px);
  font-size: clamp(3rem, 5.6vw, 5.55rem);
  line-height: .92;
  letter-spacing: -.055em;
  font-weight: 850;
  text-wrap: balance;
  text-shadow: 0 4px 24px rgba(0,0,0,.28);
}

.hero-support {
  max-width: 52ch;
  margin-bottom: 20px;
  color: rgba(255,255,255,.92) !important;
  font-size: clamp(.88rem, 1.05vw, 1rem);
  line-height: 1.55;
  text-shadow: 0 2px 12px rgba(0,0,0,.28);
}

.hero-actions { gap: 10px; }
.hero-actions .btn { min-width: 170px; }

.hero-command-dock {
  width: min(1120px, calc(100% - 2 * var(--ms-gutter)));
  bottom: clamp(12px, 2.4svh, 24px);
  padding: 0;
  border: 1px solid rgba(16,42,67,.14);
  border-radius: var(--ms-radius);
  background: rgba(250,252,253,.94);
  box-shadow: 0 20px 50px rgba(7, 25, 45, .16);
  backdrop-filter: blur(10px) saturate(115%);
  -webkit-backdrop-filter: blur(10px) saturate(115%);
}

.hero-command-actions {
  min-height: clamp(60px, 8svh, 76px);
  background: rgba(16,42,67,.06);
}

.hero-command-item {
  min-height: inherit;
  padding: 12px 16px;
  border-right: 1px solid rgba(16,42,67,.10);
  transition: background-color var(--ms-fast), color var(--ms-fast), transform var(--ms-fast);
}
.hero-command-item:last-child { border-right: 0; }
.hero-command-item:hover,
.hero-command-item:focus-visible { background: #edf5fb; }
.hero-command-item.is-primary { background: var(--ms-solar); }
.hero-command-item.is-primary:hover,
.hero-command-item.is-primary:focus-visible { background: #ffd43e; }
.hero-command-item em { font-size: .54rem; }

/* ---------- Main content: more editorial, less card-heavy ---------- */
.section {
  scroll-margin-top: 24px;
}

.section-light,
.section-dark {
  background: #fff;
}

.section-light { color: var(--ms-ink); }
.section-dark { color: var(--ms-ink); }

.section-title {
  max-width: 17ch;
  font-size: clamp(2rem, 4vw, 3.35rem);
  line-height: 1.02;
  letter-spacing: -.035em;
}

.section-title span { color: var(--ms-blue); }
.section-sub { color: var(--ms-muted); }

.section-head { margin-bottom: clamp(30px, 5vw, 54px); }

/* Reduce the number of rounded UI surfaces. */
.cap-card,
.service-category-card,
.epc-body,
.om-item,
.dd-zone,
.contact-card,
.insight-card,
.photo-frame,
.g-item,
.panel-flow,
.dd-hero {
  border-radius: var(--ms-radius);
}

.cap-card,
.insight-card,
.g-item,
.om-item,
.dd-zone,
.contact-card {
  box-shadow: none;
}

.cap-card:hover,
.insight-card:hover,
.g-item:hover,
.om-item:hover,
.dd-zone:hover,
.contact-card:hover {
  transform: translateY(-2px);
}

/* Keep the technical surfaces crisp. */
.insight-card {
  min-height: 280px;
  border: 1px solid var(--ms-line);
  padding: 24px;
}

/* ---------- Gallery controls ---------- */
.filter-btn,
.lightbox-thumb {
  border-radius: 2px;
}

.g-item {
  overflow: hidden;
}

.g-item:focus-visible {
  outline-offset: -3px;
}

/* Generated gallery controls are semantic buttons, not fake links. */
.gallery-project-card {
  width: 100%;
  border: 0;
  padding: 0;
  text-align: left;
  font: inherit;
  color: inherit;
  cursor: pointer;
}

.gallery-project-card img { width: 100%; height: 100%; }

/* ---------- Dialogs / command panels ---------- */
.panel-shell,
.modal-shell,
.lightbox {
  overscroll-behavior: contain;
}

.panel-backdrop,
.modal-backdrop {
  backdrop-filter: blur(9px);
  -webkit-backdrop-filter: blur(9px);
}

.panel {
  width: min(900px, 100%);
  border-radius: 0;
}

.panel-header {
  min-height: 76px;
}

.panel-close,
.modal-close,
.lightbox-close,
.lightbox-nav {
  min-width: 44px;
  min-height: 44px;
}

.panel-body,
.modal-body {
  text-wrap: pretty;
}

/* ---------- Mobile navigation ---------- */
.mobile-menu {
  overscroll-behavior: contain;
}

.mobile-menu button,
.mobile-menu a.btn {
  min-height: 48px;
}

/* ---------- Project assistance ---------- */
.project-assist-float {
  border-radius: 3px;
  box-shadow: 0 14px 38px rgba(0,0,0,.20);
}

/* ---------- Performance-friendly reveals ---------- */
.reveal {
  will-change: opacity, transform;
}

/* ---------- Tablet / compact desktop ---------- */
@media (max-width: 1100px) and (min-width: 701px) {
  .hero-content {
    width: calc(100% - 56px);
    padding-bottom: 118px;
  }

  .hero-brand { width: 126px; }
  .hero-eyebrow { max-width: 44vw; }
  .hero-copy { width: min(610px, 63vw); }
  .hero-title { font-size: clamp(3rem, 5.9vw, 4.7rem); }
  .hero-support { max-width: 48ch; }
  .hero-actions { display: none; }

  .hero-command-dock {
    width: calc(100% - 56px);
  }

  .hero-command-actions { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .hero-command-item { padding-inline: 12px; }
  .hero-command-item em { display: none; }
}

/* ---------- Mobile: deliberate composition, not compressed desktop ---------- */
@media (max-width: 700px) {
  :root { --header-h: 64px; }

  .hero {
    min-height: 100svh;
    height: 100svh;
  }

  .hero-content {
    width: calc(100% - 28px);
    padding: 18px 0 126px;
  }

  .hero-brand-row { margin-bottom: 0; }
  .hero-brand { width: 108px; }
  .hero-brand-logo { max-height: 74px; }

  .hero-eyebrow {
    top: 20px;
    right: 14px;
    max-width: 48vw;
    font-size: .44rem;
    line-height: 1.55;
    letter-spacing: .13em;
  }

  .hero-copy {
    width: 100%;
    margin-top: auto;
    margin-bottom: 14px;
  }

  .hero-kicker { font-size: .56rem; margin-bottom: 9px; }
  .hero-title {
    max-width: 12ch;
    margin-bottom: 12px;
    font-size: clamp(2.35rem, 11.7vw, 4rem);
    line-height: .95;
    letter-spacing: -.055em;
  }

  .hero-support {
    max-width: 35ch;
    margin-bottom: 0;
    font-size: .84rem;
    line-height: 1.52;
  }

  .hero-actions { display: none; }

  .hero-command-dock {
    left: 14px;
    right: 14px;
    bottom: 10px;
    width: auto;
    transform: none;
    overflow: hidden;
    border-radius: 3px;
  }

  .hero-command-label { display: none !important; }

  .hero-command-actions {
    display: flex;
    min-height: 58px;
    overflow-x: auto;
    overscroll-behavior-x: contain;
    scrollbar-width: none;
  }

  .hero-command-actions::-webkit-scrollbar { display: none; }

  .hero-command-item {
    flex: 0 0 116px;
    min-height: 58px;
    padding: 8px 10px;
  }

  .hero-command-item strong { font-size: .68rem; }
  .hero-command-item span { font-size: .58rem; }
  .hero-command-item em { display: none; }

  .project-assist-float {
    right: 14px;
    bottom: 82px;
  }

  .project-assist-float > span:last-child { display: none; }
  .project-assist-float { padding: 10px; }
}

@media (max-width: 420px) {
  .hero-content { width: calc(100% - 22px); padding-bottom: 122px; }
  .hero-brand { width: 96px; }
  .hero-eyebrow { right: 10px; max-width: 52vw; font-size: .4rem; }
  .hero-title { font-size: clamp(2.15rem, 11.8vw, 3.1rem); }
  .hero-support { font-size: .8rem; max-width: 33ch; }
  .hero-command-dock { left: 10px; right: 10px; }
  .hero-command-item { flex-basis: 104px; }
}

/* ---------- Reduced motion: static poster, static UI transitions ---------- */
@media (prefers-reduced-motion: reduce) {
  .hero-video { display: none; }
  .hero-poster { opacity: 1 !important; }
  .reveal,
  .reveal.in-view { opacity: 1; transform: none; }
  .hero-command-item:hover,
  .cap-card:hover,
  .insight-card:hover,
  .g-item:hover,
  .om-item:hover,
  .dd-zone:hover,
  .contact-card:hover,
  .btn:hover { transform: none; }
}

/* Reduced-data mode uses the poster even when motion preferences allow video. */
html.is-data-constrained .hero-video { display: none; }
html.is-data-constrained .hero-poster { opacity: 1 !important; }

/* Semantic accordion trigger inside Due Diligence zones. */
.dd-zone { padding: 0; overflow: hidden; }
.dd-zone-trigger {
  width: 100%;
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 4px 12px;
  padding: 18px 18px 14px;
  text-align: left;
  color: inherit;
  background: transparent;
  border: 0;
  cursor: pointer;
}
.dd-zone-trigger .dd-zone-icon { grid-row: 1 / span 2; }
.dd-zone-trigger .dd-zone-name { display: block; }
.dd-zone-trigger .dd-zone-desc { display: block; }
.dd-zone-trigger:focus-visible { outline-offset: -3px; }
.dd-zone-detail { padding-inline: 60px 18px; }

.epc-stage,
.om-item {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  font: inherit;
  color: inherit;
  text-align: left;
  cursor: pointer;
}

.epc-stage:focus-visible,
.om-item:focus-visible { outline-offset: -2px; }

.hero-command-item.is-current:not(.is-primary) {
  background: #eaf4fb;
}
.hero-command-item.is-current {
  box-shadow: inset 0 -2px 0 var(--ms-solar);
}