/* Evergreen Agency — Global Styles and Design System */

/* CSS Variables: Colors, Typography, Spacing */
:root {
  /* Green palette — medium/dark primary with tonal scale */
  --green-900: #0f3d2d;
  --green-800: #14533e;
  --green-700: #1a5f46;
  --green-600: #1c6b4e; /* primary */
  --green-500: #237a5a;
  --green-400: #2f8f6b;
  --green-300: #48a882;
  --green-200: #76c3a6;
  --green-100: #cfeee0;

  --bg-950: #0a0f0d;
  --bg-900: #0f1412;
  --bg-800: #111a17;
  --bg-elev: #111d18;
  --text-100: #eef6f2;
  --text-200: #cbdfd5;
  --text-300: #a5c4b6;
  --muted: #8fb2a5;

  --primary: var(--green-600);
  --primary-contrast: #eafff6;
  --surface: var(--bg-elev);
  --bg: var(--bg-900);
  --border: rgba(255, 255, 255, 0.08);
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);

  /* Typography scale */
  --font-sans: "Inter", system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", sans-serif;
  --font-serif: "Playfair Display", Georgia, "Times New Roman", serif;

  --fs-xxl: clamp(2.4rem, 4vw + 1rem, 4rem);
  --fs-xl: clamp(1.8rem, 2.5vw + 0.6rem, 2.6rem);
  --fs-lg: clamp(1.25rem, 1.3vw + 0.5rem, 1.5rem);
  --fs-md: 1rem;
  --fs-sm: 0.925rem;
  --fs-xs: 0.82rem;

  /* Spacing */
  --space-2xs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 5rem;
  --radius: 14px;
  --radius-sm: 10px;
  --radius-lg: 22px;
}

/* Reset & Base */
*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--text-200);
  background: radial-gradient(1200px 800px at 80% -10%, rgba(44, 128, 96, 0.15), transparent 60%),
              linear-gradient(180deg, var(--bg-900), var(--bg-800));
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a { color: var(--text-200); text-decoration: none; }
a:hover { color: white; }

button { font: inherit; color: inherit; background: none; border: none; }

.container {
  width: min(1120px, 92vw);
  margin-inline: auto;
}

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

.section__head {
  display: grid;
  gap: var(--space-sm);
  margin-bottom: var(--space-2xl);
  text-align: center;
}

h1, h2, h3 {
  color: var(--text-100);
  letter-spacing: -0.02em;
}

h1 { font-size: var(--fs-xxl); line-height: 1.1; }
h2 { font-size: var(--fs-xl); line-height: 1.15; }
h3 { font-size: 1.25rem; }

.lead { font-size: var(--fs-lg); color: var(--text-200); opacity: 0.95; }
.eyebrow {
  color: var(--green-200);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: var(--fs-xs);
}

.muted { color: var(--muted); }

/* Accessibility helpers */
.sr-only {
  position: absolute; inline-size: 1px; block-size: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; clip-path: inset(50%); border: 0; padding: 0; margin: -1px;
}
.skip-link {
  position: absolute; left: -9999px; top: -9999px;
}
.skip-link:focus {
  left: 1rem; top: 1rem; background: var(--primary); color: var(--primary-contrast);
  padding: 0.5rem 0.75rem; border-radius: 8px; z-index: 9999;
}

/* Header / Nav */
.site-header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: saturate(140%) blur(10px);
  background: linear-gradient(180deg, rgba(17, 29, 24, 0.9), rgba(17, 29, 24, 0.5));
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 0.9rem;
  gap: var(--space-lg);
}

.brand {
  display: inline-flex; align-items: center; gap: 0.65rem; color: white;
}
.brand__icon { color: var(--green-300); filter: drop-shadow(0 0 10px rgba(72, 168, 130, 0.35)); }
.brand__name { font-weight: 800; letter-spacing: -0.02em; }

.nav { display: flex; align-items: center; gap: var(--space-lg); }
.nav__list {
  display: flex; align-items: center; gap: var(--space-lg);
  list-style: none; padding: 0; margin: 0;
}
.nav__list a {
  color: var(--text-200);
  font-size: var(--fs-sm);
  opacity: 0.9;
}
.nav__list a:hover { color: white; opacity: 1; }

.nav__toggle {
  display: none;
  width: 42px; height: 42px; border-radius: 10px; border: 1px solid var(--border);
  place-content: center;
}
.nav__bar {
  display: inline-block; width: 20px; height: 2px; background: var(--text-200); position: relative;
}
.nav__bar::before, .nav__bar::after {
  content: ""; position: absolute; left: 0; width: 100%; height: 2px; background: inherit;
}
.nav__bar::before { top: -6px; }
.nav__bar::after { top: 6px; }

/* Buttons */
.button {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 0.5rem; padding: 0.8rem 1.1rem;
  border-radius: 12px; font-weight: 600; font-size: var(--fs-sm);
  color: var(--primary-contrast);
  background: linear-gradient(180deg, var(--green-500), var(--green-700));
  border: 1px solid rgba(255,255,255,0.08);
  box-shadow: 0 12px 24px rgba(28, 107, 78, 0.25), inset 0 1px 0 rgba(255,255,255,0.08);
  transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
}
.button:hover { transform: translateY(-2px); filter: brightness(1.05); }
.button:active { transform: translateY(0); }
.button--ghost {
  color: var(--text-200);
  background: transparent; border: 1px solid var(--border);
}
.button--ghost:hover { border-color: rgba(255,255,255,0.2); color: white; }
.button--light {
  background: white; color: var(--green-700);
  box-shadow: 0 8px 20px rgba(255,255,255,0.08);
}

/* Cards */
.card {
  background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.02));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

/* Hero */
.hero {
  position: relative;
  padding-top: 6rem;
  padding-bottom: var(--space-3xl);
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

.hero__title { font-family: var(--font-serif); }
.hero__title .accent {
  color: var(--green-200);
  text-shadow: 0 0 30px rgba(72, 168, 130, 0.25);
}
.under {
  background: linear-gradient(120deg, transparent 0 10%, rgba(72,168,130,0.25) 10% 90%, transparent 90% 100%);
  box-decoration-break: clone; padding-inline: 0.2em;
}

.hero__actions { display: flex; gap: var(--space-md); margin-top: var(--space-lg); flex-wrap: wrap; }

.hero__badges {
  margin-top: var(--space-lg);
  display: flex; flex-wrap: wrap; gap: var(--space-sm);
  padding: 0; list-style: none;
}
.hero__badges li {
  padding: 0.4rem 0.6rem; border: 1px dashed var(--border); border-radius: 999px;
  color: var(--text-300); font-size: var(--fs-xs);
}

/* Visual mesh card */
.hero__visual .card.mesh {
  position: relative; aspect-ratio: 4 / 3;
  display: grid; place-items: center;
  background:
    radial-gradient(600px 300px at 50% 40%, rgba(36, 121, 90, 0.35), transparent 70%),
    radial-gradient(800px 400px at 0% 100%, rgba(25, 86, 64, 0.4), transparent 60%),
    linear-gradient(160deg, rgba(255,255,255,0.04), rgba(255,255,255,0.02));
}
.orb {
  position: absolute; border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.6), rgba(255,255,255,0.1) 40%, transparent 70%),
              radial-gradient(circle at 60% 70%, rgba(72,168,130,0.8), rgba(28,107,78,0.2) 50%, transparent 70%);
  filter: blur(0.2px);
  mix-blend-mode: screen;
}
.orb--lg { width: 320px; height: 320px; left: 20%; top: 18%; }
.orb--sm { width: 180px; height: 180px; right: 10%; bottom: 18%; }

.mesh__ring, .mesh__ring--2 {
  position: absolute; width: 70%; height: 70%; border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.08);
}
.mesh__ring--2 { width: 50%; height: 50%; }

/* Decorative wave */
.hero__wave {
  position: absolute; left: 0; right: 0; bottom: -1px; height: 90px;
  background: radial-gradient(60% 100% at 50% 0%, rgba(72,168,130,0.14), transparent 65%),
              radial-gradient(60% 80% at 20% 30%, rgba(36,121,90,0.15), transparent 65%),
              linear-gradient(180deg, transparent, rgba(0,0,0,0.1));
  mask: radial-gradient(70% 100% at 50% 0%, black 45%, transparent 60%);
  pointer-events: none;
}

/* Services */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}
.service {
  padding: var(--space-xl);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.service:hover { transform: translateY(-6px); border-color: rgba(255,255,255,0.16); }
.service__icon {
  font-size: 1.6rem; display: inline-grid; place-items: center; width: 48px; height: 48px;
  background: rgba(72,168,130,0.12); color: var(--green-200);
  border: 1px solid var(--border); border-radius: 12px; margin-bottom: var(--space-md);
}
.list {
  margin: 0; padding-left: 1.1rem; color: var(--text-300);
}

/* Work grid */
.work__grid {
  display: grid; gap: var(--space-xl);
  grid-template-columns: repeat(3, 1fr);
}
.work__item { overflow: hidden; padding: 0; }
.work__media { aspect-ratio: 4 / 3; overflow: hidden; }
.work__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.work__item:hover .work__media img { transform: scale(1.05); }
.work__meta { padding: var(--space-lg); }

/* About */
.about__grid {
  display: grid; gap: var(--space-2xl);
  grid-template-columns: 1fr 1.2fr;
  align-items: center;
}
.profile { overflow: hidden; }
.profile__img { width: 100%; height: auto; object-fit: cover; }
.profile__info { padding: var(--space-lg); border-top: 1px solid var(--border); }

/* KPIs */
.kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); list-style: none; padding: 0; margin: var(--space-lg) 0; }
.kpi { font-size: 2rem; font-weight: 800; color: var(--green-200); }

/* Logos */
.about__logos { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-lg); opacity: 0.85; }
.about__logos img {
  width: 100%; height: 42px; object-fit: contain; filter: grayscale(1) contrast(1.1);
  opacity: 0.7; transition: opacity 0.2s ease, filter 0.2s ease;
}
.about__logos img:hover { opacity: 1; filter: grayscale(0) drop-shadow(0 3px 10px rgba(72,168,130,0.2)); }

/* Testimonials */
.testimonials__slider {
  display: grid; gap: var(--space-xl);
  grid-template-columns: repeat(3, 1fr);
}
.testimonial { padding: var(--space-xl); }
blockquote {
  margin: 0 0 var(--space-md) 0;
  font-size: var(--fs-lg);
  color: var(--text-100);
  font-family: var(--font-serif);
}

/* CTA */
.cta__box {
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-xl);
  padding: var(--space-xl);
  background:
    radial-gradient(500px 180px at 0% 0%, rgba(47, 143, 107, 0.25), transparent 70%),
    radial-gradient(500px 180px at 100% 100%, rgba(25, 86, 64, 0.25), transparent 70%),
    linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.02));
}

/* Footer */
.site-footer {
  padding-block: var(--space-2xl);
  border-top: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(17, 29, 24, 0.8), rgba(17, 29, 24, 0.6));
}
.footer__grid {
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-lg);
}
.footer__links { list-style: none; margin: 0; padding: 0; display: flex; gap: var(--space-lg); }
.footer__links a { color: var(--text-300); }
.footer__links a:hover { color: white; }

/* Reveal animation initial state */
.reveal-up { opacity: 0; transform: translateY(24px); }

/* Responsive */
@media (max-width: 960px) {
  .hero__grid { grid-template-columns: 1fr; }
  .about__grid { grid-template-columns: 1fr; }
  .cards, .work__grid, .testimonials__slider { grid-template-columns: 1fr 1fr; }
  .cta__box { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 640px) {
  .header-inner { padding-block: 0.7rem; }
  .nav__toggle { display: grid; }
  .nav__list {
    position: absolute;
    right: 1rem; top: 64px;
    display: none; flex-direction: column; align-items: stretch; gap: 0;
    background: var(--surface); border: 1px solid var(--border); border-radius: 12px; overflow: hidden;
    box-shadow: var(--shadow);
  }
  .nav__list.is-open { display: flex; }
  .nav__list li { border-bottom: 1px solid var(--border); }
  .nav__list li:last-child { border-bottom: none; }
  .nav__list a { padding: 0.9rem 1rem; display: block; }
  .cards, .work__grid, .testimonials__slider { grid-template-columns: 1fr; }
  .kpis { grid-template-columns: 1fr; }
  .about__logos { grid-template-columns: 1fr 1fr; }
}