/* Nexora Solutions: concentric target + sprout, botanical calm */
:root {
  --forest: #176239;
  --forest-deep: #0e3f24;
  --forest-ink: #0b2a19;
  --mint: #f0ffde;
  --mint-2: #e2f5cc;
  --leaf: #7fbf6a;
  --ink: #17271d;
  --muted: #4c5f52;
  --line: rgba(23, 98, 57, .18);
  --on-dark: rgba(245, 252, 240, .94);
  --on-dark-soft: rgba(236, 248, 228, .8);
  --radius: 22px;
  --shadow: 0 18px 40px -22px rgba(14, 63, 36, .45);
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Be Vietnam Pro", system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--mint);
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3 { font-family: "Prata", Georgia, serif; font-weight: 400; line-height: 1.18; margin: 0 0 .5em; color: var(--forest-ink); }
p { margin: 0 0 1em; }
.wrap { width: min(1160px, 100% - 48px); margin-inline: auto; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(240, 255, 222, .82);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, box-shadow .3s;
}
.site-header.scrolled { border-color: var(--line); box-shadow: 0 8px 24px -18px rgba(14, 63, 36, .5); }
.head-row { display: flex; align-items: center; justify-content: space-between; height: 74px; }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; font-weight: 600; color: var(--forest-ink); letter-spacing: .01em; }
.brand img { width: 40px; height: 40px; border-radius: 50%; box-shadow: 0 0 0 2px var(--mint), 0 0 0 3px var(--line); }
.primary-nav { display: flex; align-items: center; gap: 28px; }
.primary-nav a { text-decoration: none; font-size: 15px; color: var(--muted); font-weight: 500; transition: color .2s; }
.primary-nav a:hover { color: var(--forest); }
.primary-nav .nav-cta { background: var(--forest); color: var(--mint); padding: 10px 18px; border-radius: 999px; }
.primary-nav .nav-cta:hover { color: #fff; background: var(--forest-deep); }
.nav-toggle { display: none; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 12px; background: transparent; cursor: pointer; padding: 0; flex-direction: column; align-items: center; justify-content: center; gap: 5px; }
.nav-toggle span { display: block; width: 20px; height: 2px; background: var(--forest-ink); border-radius: 2px; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 14px 24px; border-radius: 999px; font-weight: 600; font-size: 15px; text-decoration: none; transition: transform .25s, background .25s, color .25s, box-shadow .25s; text-align: center; }
.btn-solid { background: var(--forest); color: var(--mint); }
.btn-line { border: 1.5px solid var(--forest); color: var(--forest); }

/* Hero */
.hero { position: relative; padding: 72px 0 96px; overflow: hidden; }
.hero::before { content: ""; position: absolute; right: -10%; top: -20%; width: 60%; height: 140%; background: radial-gradient(closest-side, var(--mint-2), transparent); pointer-events: none; }
.hero-grid { position: relative; display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; }
.kicker { font-size: 13px; letter-spacing: .18em; text-transform: uppercase; color: var(--forest); font-weight: 600; margin-bottom: 18px; }
.hero h1 { font-size: clamp(40px, 6vw, 74px); letter-spacing: -.01em; }
.hero h1 em { font-style: italic; color: var(--forest); }
.lede { font-size: 19px; color: var(--muted); max-width: 520px; margin-bottom: 32px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-art { display: flex; justify-content: center; }
.target { width: min(440px, 100%); height: auto; overflow: visible; }
.ring { fill: none; stroke: var(--forest); stroke-width: 1.4; transform-origin: 200px 200px; }
.r1 { opacity: .25; animation: breathe 6s ease-in-out infinite; }
.r2 { opacity: .4; stroke-dasharray: 4 8; animation: spin 40s linear infinite; }
.r3 { opacity: .55; animation: breathe 6s ease-in-out infinite 1s; }
.r4 { opacity: .8; fill: var(--mint-2); }
.cross { stroke: var(--forest); stroke-width: 1.4; opacity: .45; }
.soil { fill: var(--forest); opacity: .14; }
.stem { fill: none; stroke: var(--forest); stroke-width: 4; stroke-linecap: round; stroke-dasharray: 180; stroke-dashoffset: 180; animation: grow 2.4s ease-out .3s forwards; }
.leaf { fill: var(--leaf); stroke: var(--forest); stroke-width: 1.5; transform-box: fill-box; opacity: 0; transform: scale(.2); }
.l1 { transform-origin: right bottom; animation: unfurl 1s ease-out 1.6s forwards, sway 5s ease-in-out 2.8s infinite; }
.l2 { transform-origin: left bottom; animation: unfurl 1s ease-out 2s forwards, sway 5s ease-in-out 3.2s infinite reverse; }
.l3 { transform-origin: center bottom; fill: var(--forest); animation: unfurl 1s ease-out 2.4s forwards; }
.dot { fill: var(--forest-ink); animation: pulse 2.4s ease-in-out infinite; transform-origin: 200px 200px; }
@keyframes grow { to { stroke-dashoffset: 0; } }
@keyframes unfurl { to { opacity: 1; transform: scale(1); } }
@keyframes sway { 0%, 100% { transform: rotate(0); } 50% { transform: rotate(-6deg); } }
@keyframes breathe { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.03); } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes pulse { 0%, 100% { transform: scale(1); opacity: 1; } 50% { transform: scale(1.8); opacity: .5; } }

/* Section shared */
section { padding: 96px 0; }
.num { display: inline-block; font-family: "Prata", serif; font-size: 15px; color: var(--forest); border: 1px solid var(--line); border-radius: 50%; width: 46px; height: 46px; line-height: 44px; text-align: center; margin-bottom: 18px; }
.sec-head h2 { font-size: clamp(30px, 4vw, 46px); max-width: 640px; }
.sec-head .sub { color: var(--muted); }

/* Direction */
.direction { background: #fff; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.dir-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 56px; align-items: start; }
.dir-label h2 { font-size: clamp(30px, 4vw, 46px); }
.dir-body p { font-size: 18px; color: var(--muted); }
.dir-body p:first-child { font-size: 22px; color: var(--ink); font-family: "Prata", serif; line-height: 1.5; }

/* Ring cards */
.ring-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 40px; }
.ring-card { position: relative; background: #fff; border: 1px solid var(--line); border-radius: 50% 50% var(--radius) var(--radius) / 120px 120px var(--radius) var(--radius); padding: 48px 30px 34px; text-align: center; transition: transform .35s, box-shadow .35s, border-color .35s; }
.ring-ico { width: 72px; height: 72px; margin: 0 auto 20px; }
.ring-ico svg { width: 100%; height: 100%; fill: none; stroke: var(--forest); stroke-width: 2; }
.ring-ico svg :last-child { fill: var(--mint-2); }
.ring-card h3 { font-size: 26px; }
.ring-card p { color: var(--muted); margin: 0; }

/* Grow stem list */
.grow { background: var(--mint-2); }
.stem-list { list-style: none; margin: 48px 0 0; padding: 0; position: relative; max-width: 860px; }
.stem-list::before { content: ""; position: absolute; left: 22px; top: 8px; bottom: 8px; width: 3px; background: linear-gradient(var(--forest), var(--leaf)); border-radius: 3px; }
.stem-list li { position: relative; display: grid; grid-template-columns: 46px 1fr; gap: 24px; padding: 22px 26px 22px 0; margin-bottom: 14px; border-radius: 18px; transition: background .3s, transform .3s; }
.node { position: relative; z-index: 1; width: 46px; height: 46px; border-radius: 0 50% 50% 50%; background: var(--forest); transform: rotate(45deg); box-shadow: 0 0 0 6px var(--mint-2); }
.stem-list h3 { font-size: 24px; margin-bottom: .3em; }
.stem-list p { margin: 0; color: var(--muted); }

/* Quote band (dark) */
.quote-band { position: relative; background: var(--forest-deep); color: var(--on-dark); overflow: hidden; text-align: center; padding: 110px 0; }
.q-rings { position: absolute; left: 50%; top: 50%; width: 560px; height: 560px; transform: translate(-50%, -50%); fill: none; stroke: rgba(240, 255, 222, .12); stroke-width: 1; pointer-events: none; }
.quote-band blockquote { position: relative; margin: 0 auto; max-width: 820px; }
.quote-band p { font-family: "Prata", serif; font-size: clamp(30px, 4.6vw, 54px); line-height: 1.25; color: var(--on-dark); margin-bottom: 20px; }
.quote-band cite { font-style: normal; font-size: 14px; letter-spacing: .16em; text-transform: uppercase; color: var(--on-dark-soft); }

/* FAQ */
.faq-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 56px; align-items: start; }
.faq-list { display: grid; gap: 12px; }
.faq-item { background: #fff; border: 1px solid var(--line); border-radius: 18px; transition: border-color .3s, box-shadow .3s, transform .3s; }
.faq-q { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 18px; background: none; border: 0; padding: 22px 24px; font: 600 17px/1.4 "Be Vietnam Pro", sans-serif; color: var(--ink); text-align: left; cursor: pointer; }
.plus { position: relative; flex: 0 0 28px; height: 28px; border-radius: 50%; border: 1.5px solid var(--forest); }
.plus::before, .plus::after { content: ""; position: absolute; left: 50%; top: 50%; width: 12px; height: 1.5px; background: var(--forest); transform: translate(-50%, -50%); transition: transform .3s; }
.plus::after { transform: translate(-50%, -50%) rotate(90deg); }
.faq-item.open .plus::after { transform: translate(-50%, -50%) rotate(0); }
.faq-a { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .35s ease; }
.faq-a > p { overflow: hidden; margin: 0; padding: 0 24px; color: var(--muted); }
.faq-item.open .faq-a { grid-template-rows: 1fr; }
.faq-item.open .faq-a > p { padding-bottom: 22px; }

/* Contact */
.contact { padding-top: 0; }
.contact-card { display: grid; grid-template-columns: 1.3fr 1fr; gap: 40px; align-items: center; background: var(--forest); border-radius: 32px; padding: 64px; color: var(--on-dark); position: relative; overflow: hidden; }
.contact-card::after { content: ""; position: absolute; right: -90px; bottom: -90px; width: 280px; height: 280px; border-radius: 50%; border: 40px solid rgba(240, 255, 222, .08); }
.contact-card .kicker { color: var(--mint); opacity: .85; }
.contact-card h2 { color: var(--on-dark); font-size: clamp(28px, 3.6vw, 42px); }
.contact-card p { color: var(--on-dark-soft); }
.contact-links { display: grid; gap: 14px; position: relative; z-index: 1; }
.contact-card .btn-solid { background: var(--mint); color: var(--forest-ink); word-break: break-all; }
.contact-card .btn-line { border-color: rgba(240, 255, 222, .6); color: var(--on-dark); }

/* Footer */
.site-footer { padding: 40px 0; border-top: 1px solid var(--line); margin-top: 96px; }
.foot-row { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; font-size: 14px; color: var(--muted); }
.foot-row p { margin: 0; }
.foot-row .brand img { width: 32px; height: 32px; }

/* Reveal */
.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity .8s ease, transform .8s ease; }
.js .reveal.in { opacity: 1; transform: none; }

/* Hover life */
@media (hover: hover) and (pointer: fine) {
  .btn:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
  .btn-solid:hover { background: var(--forest-deep); }
  .btn-line:hover { background: var(--forest); color: var(--mint); }
  .contact-card .btn-solid:hover { background: #fff; }
  .contact-card .btn-line:hover { background: rgba(240, 255, 222, .14); color: #fff; }
  .ring-card:hover { transform: translateY(-8px); box-shadow: var(--shadow); border-color: var(--forest); }
  .stem-list li:hover { background: rgba(255, 255, 255, .7); transform: translateX(8px); }
  .faq-item:hover { border-color: var(--forest); box-shadow: var(--shadow); transform: translateY(-2px); }
  .brand:hover span { color: var(--forest); }
}

/* Responsive */
@media (max-width: 900px) {
  .hero-grid, .dir-grid, .faq-grid, .contact-card { grid-template-columns: 1fr; }
  .hero-art { order: -1; }
  .target { width: min(300px, 80%); }
  .ring-row { grid-template-columns: 1fr; }
  .contact-card { padding: 44px 28px; }
}
@media (max-width: 820px) {
  .nav-toggle { display: flex; }
  .primary-nav { position: absolute; top: 74px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0; background: var(--mint); border-bottom: 1px solid var(--line); padding: 8px 24px 20px; display: none; }
  .primary-nav.open { display: flex; }
  .primary-nav a { padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 16px; }
  .primary-nav .nav-cta { margin-top: 14px; text-align: center; border: 0; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .wrap { width: calc(100% - 40px); }
  section { padding: 68px 0; }
  .hero { padding: 36px 0 64px; }
  .hero-actions .btn { width: 100%; }
  .lede { font-size: 17px; }
  .stem-list li { gap: 18px; padding-right: 8px; }
  .quote-band { padding: 80px 0; }
  .q-rings { width: 380px; height: 380px; }
  .site-footer { margin-top: 68px; }
  .foot-row { flex-direction: column; align-items: flex-start; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
  .stem { stroke-dashoffset: 0; }
  .leaf { opacity: 1; transform: none; }
  .js .reveal { opacity: 1; transform: none; }
}