/* =============================================
   Little Green Studios — Stylesheet
   ============================================= */

/* ---- Reset & base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --green-900: #0d2b1a;
  --green-800: #14421f;
  --green-600: #1f6b32;
  --green-500: #2a8c42;
  --green-400: #3dab58;
  --green-100: #d4edd9;
  --green-50:  #edf7f0;

  --ink:       #111612;
  --ink-light: #3a3f3c;
  --muted:     #6b7570;
  --border:    #dde5df;
  --white:     #ffffff;
  --off-white: #f7faf8;

  --font-sans:  'Inter', system-ui, sans-serif;
  --font-serif: 'Playfair Display', Georgia, serif;

  --radius: 6px;
  --transition: 220ms ease;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 8rem;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }
ul { list-style: none; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* ---- Typography ---- */
h1, h2, h3 {
  font-family: var(--font-serif);
  line-height: 1.2;
  letter-spacing: -0.01em;
}

/* ---- Layout ---- */
.container {
  width: min(90%, 1160px);
  margin-inline: auto;
}

.section { padding-block: var(--space-xl); }
.section--dark { background: var(--ink); color: var(--white); }
.section--green { background: var(--green-600); color: var(--white); }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
}

.btn--sm { padding: 0.5rem 1rem; font-size: 0.85rem; }
.btn--full { width: 100%; justify-content: center; }

.btn--primary {
  background: var(--green-500);
  color: var(--white);
}
.btn--primary:hover { background: var(--green-600); transform: translateY(-1px); }

.btn--ghost {
  background: transparent;
  color: var(--ink);
  border: 1.5px solid var(--border);
}
.btn--ghost:hover { border-color: var(--green-500); color: var(--green-500); }

/* ---- Section header ---- */
.section__eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--green-500);
  margin-bottom: 0.75rem;
}
.section__eyebrow--light { color: var(--green-100); }

.section__header { margin-bottom: var(--space-lg); }
.section__header--light .section__heading { color: var(--white); }

.section__heading {
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--ink);
}

/* =============================================
   HEADER / NAV
   ============================================= */
.site-header {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 100;
  padding-block: 1.25rem;
  transition: background var(--transition), box-shadow var(--transition);
}

.site-header.scrolled {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.nav__logo {
  font-weight: 600;
  font-size: 1rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.nav__logo-mark { color: var(--green-500); font-size: 0.7em; }

.nav__links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav__links a {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--ink-light);
  transition: color var(--transition);
}
.nav__links a:hover { color: var(--green-500); }

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.nav__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  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 {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-block: 8rem 4rem;
  background: var(--off-white);
  position: relative;
}

.hero__inner { max-width: 800px; }

.hero__eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--green-500);
  margin-bottom: 1.25rem;
}

.hero__heading {
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  line-height: 1.05;
  margin-bottom: 1.5rem;
}
.hero__heading em {
  font-style: italic;
  color: var(--green-600);
}

.hero__sub {
  font-size: 1.15rem;
  color: var(--ink-light);
  max-width: 520px;
  margin-bottom: 2.5rem;
}

.hero__actions { display: flex; gap: 1rem; flex-wrap: wrap; }

.hero__scroll-hint {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--muted);
}

.hero__scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--green-500), transparent);
  animation: scroll-line 1.8s ease-in-out infinite;
}

@keyframes scroll-line {
  0%   { transform: scaleY(0); transform-origin: top; opacity: 1; }
  50%  { transform: scaleY(1); transform-origin: top; opacity: 1; }
  100% { transform: scaleY(1); transform-origin: bottom; opacity: 0; }
}

.hero__scroll-label { font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; }

/* =============================================
   SERVICES
   ============================================= */
.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.service-card {
  padding: 2.5rem 2rem;
  border-right: 2px solid var(--border);
  border-bottom: 2px solid var(--border);
  transition: background var(--transition);
}
.service-card:hover { background: var(--green-50); }

.service-card__number {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--green-500);
  margin-bottom: 1.5rem;
}

.service-card__title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.service-card__body { font-size: 0.9rem; color: var(--ink-light); line-height: 1.6; }

/* =============================================
   WORK
   ============================================= */
.work__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.work-card { border-radius: var(--radius); overflow: hidden; cursor: pointer; }
.work-card--wide { grid-column: span 2; }

.work-card__image {
  aspect-ratio: 16/9;
  transition: transform 0.4s ease;
}
.work-card--wide .work-card__image { aspect-ratio: 21/9; }
.work-card:hover .work-card__image { transform: scale(1.02); }

/* Placeholder colour blocks — replace with real images */
.work-card__image--1 { background: linear-gradient(135deg, #1f6b32 0%, #3dab58 100%); }
.work-card__image--2 { background: linear-gradient(135deg, #0d2b1a 0%, #1f6b32 100%); }
.work-card__image--3 { background: linear-gradient(135deg, #2a8c42 0%, #a8d5b0 100%); }
.work-card__image--4 { background: linear-gradient(135deg, #14421f 0%, #2a8c42 100%); }

.work-card__info {
  padding: 1rem;
  background: rgba(255,255,255,0.06);
}
.work-card__tag {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--green-400);
  display: block;
  margin-bottom: 0.25rem;
}
.work-card__title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--white);
}

/* =============================================
   ABOUT
   ============================================= */
.about__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.about__image-block {
  aspect-ratio: 4/5;
  border-radius: var(--radius);
  background: linear-gradient(145deg, var(--green-100) 0%, var(--green-400) 100%);
}

.about__content p {
  color: var(--ink-light);
  margin-bottom: 1rem;
}

.about__content .section__heading { margin-bottom: 1.5rem; }

/* =============================================
   CONTACT
   ============================================= */
.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

.contact__heading {
  color: var(--white);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
}

/* Form */
.contact__form { display: flex; flex-direction: column; gap: 1.25rem; }

.form-row { display: flex; flex-direction: column; gap: 0.4rem; }

.form-row label {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--green-100);
}

.form-row input,
.form-row textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  border: 1.5px solid rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.08);
  color: var(--white);
  font: inherit;
  font-size: 0.9rem;
  transition: border-color var(--transition), background var(--transition);
}
.form-row input::placeholder,
.form-row textarea::placeholder { color: rgba(255,255,255,0.4); }

.form-row input:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--green-400);
  background: rgba(255,255,255,0.12);
}

.form-row textarea { resize: vertical; }

.contact__form .btn--primary {
  background: var(--white);
  color: var(--green-700, var(--green-800));
  font-weight: 600;
}
.contact__form .btn--primary:hover { background: var(--green-100); }

.form-status {
  font-size: 0.85rem;
  min-height: 1.4em;
  color: var(--green-100);
  text-align: center;
}

/* =============================================
   FOOTER
   ============================================= */
.site-footer {
  background: var(--ink);
  color: var(--muted);
  padding-block: 2.5rem;
  font-size: 0.85rem;
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.footer__brand {
  font-weight: 600;
  color: var(--white);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.footer__nav { display: flex; gap: 1.5rem; }
.footer__nav a { transition: color var(--transition); }
.footer__nav a:hover { color: var(--green-400); }

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 900px) {
  .about__inner,
  .contact__inner { grid-template-columns: 1fr; gap: 3rem; }
  .about__media { order: -1; }
  .about__image-block { aspect-ratio: 16/9; }
}

@media (max-width: 700px) {
  .work__grid { grid-template-columns: 1fr; }
  .work-card--wide { grid-column: span 1; }
  .work-card--wide .work-card__image { aspect-ratio: 16/9; }

  .nav__toggle { display: flex; }

  .nav__links {
    display: none;
    position: fixed;
    inset: 0;
    background: var(--white);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    font-size: 1.2rem;
    z-index: 99;
  }
  .nav__links.is-open { display: flex; }

  .footer__inner { flex-direction: column; text-align: center; }
  .footer__nav { justify-content: center; flex-wrap: wrap; }
}

/* ---- Accessibility ---- */
.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
}

/* =============================================
   SCROLL REVEAL ANIMATION
   ============================================= */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}