/* ============================================================
   ALC Building & Renovations — main.css
   Design system: design-system/alc-building-renovations/MASTER.md
   Dark premium editorial. Charcoal + burnt orange. Playfair/Instrument Sans.
   ============================================================ */

:root {
  --color-bg: #060A0D;
  --color-surface: #1A1F24;
  --color-surface-2: #33353A;
  --color-slate: #415057;
  --color-accent: #C5630C;
  --color-accent-bright: #E0761A;
  --color-clay: #A47F6F;
  --color-text: #EDE8E3;
  --color-text-muted: #9BA3A9;
  --color-on-accent: #060A0D;

  --border-subtle: rgba(65, 80, 87, 0.35);
  --glow-accent: 0 0 24px rgba(197, 99, 12, 0.35);

  --font-display: "Playfair Display", Georgia, "Times New Roman", serif;
  --font-body: "Instrument Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  --container: 72rem;
  --radius: 10px;
}

/* ---------- Reset / base ---------- */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

:focus-visible {
  outline: 2px solid var(--color-accent-bright);
  outline-offset: 3px;
  border-radius: 2px;
}

::selection { background: rgba(197, 99, 12, 0.4); }

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 200;
  padding: 0.7rem 1.2rem;
  background: var(--color-accent);
  color: var(--color-on-accent);
  font-weight: 600;
  border-radius: var(--radius);
  transform: translateY(-200%);
}

.skip-link:focus-visible { transform: translateY(0); }

.icon { width: 1.1em; height: 1.1em; flex: none; }

/* ---------- Type helpers ---------- */

.eyebrow {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-clay);
  margin-bottom: var(--space-lg);
}

.section__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  line-height: 1.12;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-2xl);
}

.section__title em {
  font-style: italic;
  color: var(--color-clay);
}

.section__title--sm { font-size: clamp(1.9rem, 4vw, 2.8rem); }

.section__note {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin: calc(-1 * var(--space-xl)) 0 var(--space-2xl);
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.95rem 1.9rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 200ms ease, border-color 200ms ease,
              box-shadow 250ms ease, transform 200ms ease;
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-on-accent);
}

.btn--primary:hover {
  background: var(--color-accent-bright);
  box-shadow: var(--glow-accent);
  transform: translateY(-1px);
}

.btn--ghost {
  border-color: var(--color-slate);
  color: var(--color-text);
  background: rgba(6, 10, 13, 0.35);
}

.btn--ghost:hover {
  border-color: var(--color-clay);
  background: rgba(26, 31, 36, 0.6);
}

.btn--sm { padding: 0.6rem 1.15rem; font-size: 0.9rem; }

.btn--full { width: 100%; }

/* ---------- Nav ---------- */

.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  transition: background-color 300ms ease, border-color 300ms ease,
              backdrop-filter 300ms ease;
  border-bottom: 1px solid transparent;
}

.nav.is-scrolled {
  background: rgba(6, 10, 13, 0.72);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom-color: var(--border-subtle);
}

.nav__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0.85rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
}

.nav__brand { display: flex; flex-direction: column; line-height: 1.1; }

.nav__brand-mark {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.6rem;
  letter-spacing: 0.02em;
}

.nav__brand-sub {
  font-size: 0.58rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-clay);
}

.nav__links {
  display: flex;
  gap: var(--space-xl);
  font-size: 0.92rem;
  font-weight: 500;
}

.nav__links a {
  color: var(--color-text-muted);
  transition: color 180ms ease;
  padding: 0.35rem 0;
}

.nav__links a:hover { color: var(--color-text); }

.nav__actions { display: flex; align-items: center; gap: var(--space-lg); }

.nav__phone {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--color-text-muted);
  transition: color 180ms ease;
}

.nav__phone:hover { color: var(--color-accent-bright); }

/* ---------- Hero ---------- */

.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  overflow: hidden;
  padding: 7rem 1.5rem 0;
}

.hero__media {
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image: url("../video/hero-poster.jpg");
  background-size: cover;
  background-position: center;
}

.hero__video,
.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Video fades in over the poster once ready, plays once, holds final frame
   (which matches the poster — resting state is always the completed home). */
.hero__video {
  opacity: 0;
  transition: opacity 700ms ease;
}

.hero__video.is-on { opacity: 1; }

.hero__scrim {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg,
      rgba(6, 10, 13, 0.62) 0%,
      rgba(6, 10, 13, 0.18) 30%,
      rgba(6, 10, 13, 0.10) 55%,
      rgba(6, 10, 13, 0.78) 100%);
}

.hero__content { max-width: 56rem; }

.hero__eyebrow { text-shadow: 0 1px 12px rgba(6, 10, 13, 0.8); }

.hero__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2.9rem, 8.5vw, 6.8rem);
  line-height: 1.05;
  letter-spacing: -0.015em;
  text-shadow: 0 2px 30px rgba(6, 10, 13, 0.65);
  margin-bottom: var(--space-xl);
}

.hero__line { display: block; }

.hero__title em { font-style: italic; color: #F4D9BC; }

.hero__sub {
  max-width: 34rem;
  margin: 0 auto var(--space-2xl);
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  color: var(--color-text);
  text-shadow: 0 1px 14px rgba(6, 10, 13, 0.9);
}

.hero__cta {
  display: flex;
  gap: var(--space-lg);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-3xl);
}

.hero__scroll-cue {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-clay);
  text-shadow: 0 1px 10px rgba(6, 10, 13, 0.9);
}

.hero__scroll-cue .icon { animation: cue-bob 1.8s ease-in-out infinite; }

@keyframes cue-bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(5px); }
}

.hero__statbar {
  width: 100%;
  max-width: var(--container);
  margin-top: auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--border-subtle);
  border-bottom: none;
  border-radius: var(--radius) var(--radius) 0 0;
  background: rgba(6, 10, 13, 0.55);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.statbar__item {
  padding: 1.1rem 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  border-right: 1px solid var(--border-subtle);
}

.statbar__item:last-child { border-right: none; }

.statbar__label {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-clay);
}

.statbar__value { font-size: 0.95rem; font-weight: 600; }

/* ---------- Sections ---------- */

.section {
  position: relative;
  padding: var(--space-4xl) 1.5rem;
  overflow: hidden;
}

.section__inner {
  max-width: var(--container);
  margin: 0 auto;
  position: relative;
}

.watermark {
  position: absolute;
  top: 0.5rem;
  right: -2rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(7rem, 18vw, 17rem);
  line-height: 1;
  color: rgba(164, 127, 111, 0.05);
  pointer-events: none;
  user-select: none;
  white-space: nowrap;
}

.section--process .watermark,
.section--contact .watermark { right: auto; left: -2rem; }

/* ---------- Services cards ---------- */

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  padding: var(--space-xl);
  transition: border-color 250ms ease, transform 250ms ease,
              background-color 250ms ease;
}

.card:hover {
  border-color: rgba(197, 99, 12, 0.55);
  background: var(--color-surface-2);
  transform: translateY(-4px);
}

.card__icon {
  width: 2rem;
  height: 2rem;
  color: var(--color-accent);
  margin-bottom: var(--space-lg);
}

.card__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.35rem;
  margin-bottom: 0.6rem;
}

.card__body { color: var(--color-text-muted); font-size: 0.95rem; }

.card--cta {
  display: flex;
  flex-direction: column;
  justify-content: center;
  background:
    linear-gradient(145deg, rgba(197, 99, 12, 0.12), rgba(26, 31, 36, 0.9));
  border-color: rgba(197, 99, 12, 0.4);
}

.card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: var(--space-lg);
  font-weight: 600;
  color: var(--color-accent-bright);
  transition: gap 200ms ease;
}

.card__link:hover { gap: 0.8rem; }

/* ---------- Why ALC ---------- */

.section--why { padding: 0; }

.why__bg {
  position: absolute;
  inset: 0;
  background-image: url("../video/hero-poster.jpg");
  background-size: cover;
  background-position: center 70%;
}

.why__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(6, 10, 13, 0.72);
}

.section--why .section__inner {
  padding: var(--space-4xl) 0;
}

.glass-card {
  max-width: 38rem;
  background: rgba(26, 31, 36, 0.6);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(164, 127, 111, 0.25);
  border-radius: calc(var(--radius) + 4px);
  padding: var(--space-2xl);
}

.glass-card__body { color: var(--color-text-muted); margin-bottom: var(--space-lg); }

.check-list { list-style: none; display: grid; gap: 0.7rem; }

.check-list li {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  font-weight: 500;
}

.check-list li::before {
  content: "";
  width: 0.5rem;
  height: 0.5rem;
  flex: none;
  transform: translateY(-1px);
  background: var(--color-accent);
  border-radius: 50%;
  box-shadow: 0 0 10px rgba(197, 99, 12, 0.6);
}

/* ---------- Process timeline ---------- */

.timeline {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-lg);
  position: relative;
  margin-top: var(--space-3xl);
}

.timeline::before {
  content: "";
  position: absolute;
  top: 3.05rem;
  left: 2%;
  right: 2%;
  height: 1px;
  background: linear-gradient(90deg,
    transparent, var(--color-slate) 12%, var(--color-slate) 88%, transparent);
}

.timeline__step { position: relative; padding-top: 4.4rem; }

.timeline__num {
  position: absolute;
  top: 0;
  left: 0;
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--color-clay);
}

.timeline__node {
  position: absolute;
  top: 2.55rem;
  left: 0;
  width: 1.05rem;
  height: 1.05rem;
  border-radius: 50%;
  border: 2px solid var(--color-accent);
  background: var(--color-bg);
  box-shadow: var(--glow-accent);
}

.timeline__node::after {
  content: "";
  position: absolute;
  inset: 3px;
  border-radius: 50%;
  background: var(--color-accent-bright);
}

.timeline__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.3rem;
  margin-bottom: 0.4rem;
}

.timeline__body { color: var(--color-text-muted); font-size: 0.92rem; }

/* ---------- Work ---------- */

.work-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  align-items: start;
}

.work-item {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  background: var(--color-surface);
}

.work-item--offset { transform: translateY(var(--space-2xl)); }

.work-item img {
  aspect-ratio: 4 / 3;
  object-fit: cover;
  width: 100%;
  transition: transform 500ms ease;
}

.work-item:hover img { transform: scale(1.03); }

.work-item figcaption {
  padding: 1rem 1.2rem;
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--color-text);
}

/* ---------- Contact ---------- */

.section--contact {
  background: linear-gradient(180deg, var(--color-bg), #0B1014 60%, var(--color-bg));
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-3xl);
  align-items: start;
}

.contact__body { color: var(--color-text-muted); margin-bottom: var(--space-lg); }

.contact__phone {
  display: inline-block;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  color: var(--color-accent-bright);
  margin-bottom: var(--space-lg);
  transition: color 200ms ease;
}

.contact__phone:hover { color: var(--color-accent); }

.contact__addr { color: var(--color-text-muted); font-size: 0.92rem; }

.form {
  background: var(--color-surface);
  border: 1px solid var(--border-subtle);
  border-radius: calc(var(--radius) + 4px);
  padding: var(--space-2xl);
  display: grid;
  gap: var(--space-lg);
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

.form__field { display: grid; gap: 0.45rem; }

.form__field label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
}

.form__field label span { color: var(--color-accent-bright); }

.form__field input,
.form__field select,
.form__field textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  font: inherit;
  font-size: 1rem;
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-slate);
  border-radius: var(--radius);
  transition: border-color 200ms ease, box-shadow 200ms ease;
}

.form__field select { cursor: pointer; }

.form__field input:focus,
.form__field select:focus,
.form__field textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(197, 99, 12, 0.25);
}

.form__field input[aria-invalid="true"] { border-color: #DC2626; }

.form__error { color: #F87171; font-size: 0.82rem; }

.form__success {
  text-align: center;
  font-weight: 600;
  color: #7FB98A;
}

/* ---------- Float CTA ---------- */

.float-cta {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  z-index: 90;
  padding: 0.85rem 1.6rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text);
  background: rgba(6, 10, 13, 0.65);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  opacity: 0;
  transform: translateY(0.75rem);
  pointer-events: none;
  transition: opacity 300ms ease, transform 300ms ease, color 200ms ease;
}

.float-cta.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.float-cta:hover { color: var(--color-accent-bright); }

.float-cta__bracket {
  position: absolute;
  width: 0.85rem;
  height: 0.85rem;
  border: 1px solid var(--color-accent);
  transition: inset 200ms ease;
}

.float-cta__bracket--tl { top: 0; left: 0; border-right: none; border-bottom: none; }
.float-cta__bracket--br { bottom: 0; right: 0; border-left: none; border-top: none; }

/* ---------- Footer ---------- */

.footer {
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-3xl) 1.5rem var(--space-2xl);
}

.footer__inner {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  gap: var(--space-xl);
  text-align: center;
  justify-items: center;
}

.footer__brand { display: flex; flex-direction: column; line-height: 1.1; }

.footer__meta {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  display: grid;
  gap: 0.35rem;
}

.footer__meta a { color: var(--color-text); }
.footer__meta a:hover { color: var(--color-accent-bright); }

.footer__area { font-size: 0.82rem; }

.footer__copy { color: var(--color-slate); font-size: 0.8rem; }

/* ---------- Reveal (GSAP hooks) ---------- */

.js .reveal { opacity: 0; }

/* ---------- Responsive ---------- */

@media (max-width: 1024px) {
  .cards { grid-template-columns: repeat(2, 1fr); }

  .timeline { grid-template-columns: 1fr; gap: var(--space-2xl); margin-top: var(--space-xl); }
  .timeline::before {
    top: 0;
    bottom: 0;
    left: 0.5rem;
    right: auto;
    width: 1px;
    height: auto;
    background: linear-gradient(180deg,
      transparent, var(--color-slate) 8%, var(--color-slate) 92%, transparent);
  }
  .timeline__step { padding: 0 0 0 2.6rem; }
  .timeline__num { left: auto; right: 0; top: 0.1rem; }
  .timeline__node { top: 0.35rem; left: 0; }

  .work-grid { grid-template-columns: 1fr 1fr; }
  .work-item--offset { transform: none; }

  .contact__grid { grid-template-columns: 1fr; gap: var(--space-2xl); }
}

@media (max-width: 768px) {
  .nav__links, .nav__phone { display: none; }

  .hero { padding-top: 6rem; }

  /* Phone type is set for two clean lines, not shrunk desktop */
  .hero__title { font-size: clamp(2.3rem, 11vw, 2.9rem); }
  .hero__sub { font-size: 0.98rem; }

  .hero__statbar { grid-template-columns: 1fr 1fr; }
  .statbar__item { padding: 0.85rem 1rem; }
  .statbar__item:nth-child(2n) { border-right: none; }
  .statbar__item:nth-child(-n+2) { border-bottom: 1px solid var(--border-subtle); }

  .cards { grid-template-columns: 1fr; }
  .work-grid { grid-template-columns: 1fr; }

  .form { padding: var(--space-lg); }
  .form__row { grid-template-columns: 1fr; }

  .section { padding: var(--space-3xl) 1.25rem; }

  .float-cta { right: 1rem; bottom: 1rem; }
}

/* ---------- Reduced motion ---------- */

@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;
  }

  .js .reveal { opacity: 1; }
}