/* =========================================================
   Briary Energy, temporary one-page site
   Clean, modern, fast. No heavy dependencies.
   ========================================================= */

:root{
  --brand: #1f4f3b;
  --accent: #88bf75;
  --text: #1e1e1e;
  --muted: #5f5f5f;
  --bg: #ffffff;
  --bg-soft: #f5f6f4;
  --line: rgba(0,0,0,.12);

  --ease: cubic-bezier(.2,.8,.2,1);
  --dur-fast: 140ms;
  --dur: 220ms;

  --container: 1240px;
  --header-h: 78px;
  --radius: 6px;

  --shadow-sm: 0 2px 12px rgba(0,0,0,.08);
  --shadow-md: 0 10px 30px rgba(0,0,0,.14);
}

*{ box-sizing: border-box; }
html, body{ height: 100%; }
body{
  margin: 0;
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.5;
}

img{ max-width: 100%; display: block; }
a{ color: inherit; text-decoration: none; }

.container{
  width: min(var(--container), calc(100% - 48px));
  margin: 0 auto;
}

.skip-link{
  position: absolute;
  left: 12px;
  top: 12px;
  padding: 10px 12px;
  border-radius: var(--radius);
  background: #fff;
  color: #000;
  box-shadow: var(--shadow-sm);
  transform: translateY(-140%);
  transition: transform .2s ease;
  z-index: 9999;
}
.skip-link:focus{ transform: translateY(0); }

/* Header */
.site-header{
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--header-h);
  z-index: 10000;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0,0,0,.08);
  transition: box-shadow var(--dur) var(--ease);
}
.site-header.is-scrolled{ box-shadow: 0 10px 30px rgba(0,0,0,.10); }

.header-inner{
  height: 100%;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 14px;
}

.brand{
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.brand img{
  width: 46px;
  height: 46px;
}
.brand span{
  font-family: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  font-weight: 600;
  letter-spacing: .2px;
  font-size: 40px;
  color: var(--brand);
}

.nav{
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 14px;
  color: #4f4f4f;
}
.nav a{
  padding: 8px 4px;
  position: relative;
  transition: color var(--dur-fast) var(--ease);
}
.nav a::after{
  content: "";
  position: absolute;
  left: 4px;
  right: 4px;
  bottom: 4px;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  opacity: 0;
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}
.nav a:hover{ color: #1f1f1f; }
.nav a:hover::after{ transform: scaleX(1); opacity: 1; }

.menu-btn{
  display: none;
  border: 0;
  background: #4b4b4b;
  color: #fff;
  border-radius: 10px;
  width: 46px;
  height: 46px;
  cursor: pointer;
  transition: transform var(--dur) var(--ease), filter var(--dur) var(--ease);
}
.menu-btn:hover{ filter: brightness(1.05); }
.menu-btn:active{ transform: translateY(1px); }

.drawer{
  display: none;
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  background: rgba(255,255,255,.98);
  border-bottom: 1px solid rgba(0,0,0,.10);
  box-shadow: 0 20px 50px rgba(0,0,0,.12);
  z-index: 9999;
}
.drawer ul{ list-style: none; padding: 16px 0; margin: 0; display: grid; gap: 10px; }
.drawer a{ padding: 10px 0; display: inline-block; }

/* Main */
main{ padding-top: var(--header-h); }

/* Buttons */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: var(--radius);
  border: 1px solid rgba(0,0,0,.14);
  background: #fff;
  font-weight: 600;
  cursor: pointer;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.btn:hover{ transform: translateY(-1px); box-shadow: 0 14px 34px rgba(0,0,0,.12); }
.btn:active{ transform: translateY(0); }

.btn--primary{
  background: var(--brand);
  color: #fff;
  border-color: transparent;
}

.btn--ghost{
  background: rgba(31,79,59,.06);
  border-color: rgba(31,79,59,.18);
  color: var(--brand);
}

/* Hero */
.hero{
  position: relative;
  background: var(--bg-soft);
  overflow: hidden;
}

.hero__bg{
  position: absolute;
  inset: 0;
  background:
    radial-gradient(900px 460px at 20% 20%, rgba(136,191,117,.28), transparent 60%),
    radial-gradient(900px 460px at 80% 70%, rgba(31,79,59,.20), transparent 58%),
    linear-gradient(180deg, rgba(255,255,255,.94), rgba(245,246,244,.92));
}

.hero__inner{
  position: relative;
  padding: clamp(34px, 6vh, 74px) 0;
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 22px;
  align-items: start;
}

.hero__panel{
  background: #fff;
  border: 1px solid rgba(0,0,0,.10);
  box-shadow: 0 18px 55px rgba(0,0,0,.12);
  border-radius: var(--radius);
  padding: clamp(20px, 2.4vw, 30px);
}

.kicker{
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: rgba(31,79,59,.85);
}

.hero h1{
  margin: 0 0 14px;
  font-size: clamp(34px, 4.2vw, 58px);
  line-height: 1.02;
}

.hero__lead{
  margin: 0 0 18px;
  color: rgba(30,30,30,.82);
  max-width: 70ch;
  font-size: clamp(14px, 1.3vw, 17px);
  line-height: 1.7;
}

.hero__buttons{
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin: 6px 0 18px;
}

.hero__meta{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  padding-top: 14px;
  border-top: 1px solid rgba(0,0,0,.08);
  font-size: 13px;
  color: rgba(30,30,30,.78);
}

.hero__meta strong{ color: #101010; font-weight: 700; }

.hero__aside{
  display: grid;
  gap: 14px;
}

.note-card{
  background: rgba(31,79,59,.90);
  color: rgba(255,255,255,.92);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: 0 18px 50px rgba(0,0,0,.18);
}

.note-card--light{
  background: rgba(255,255,255,.92);
  color: var(--text);
  border: 1px solid rgba(0,0,0,.10);
  box-shadow: 0 18px 50px rgba(0,0,0,.12);
}

.note-card__title{
  margin: 0 0 8px;
  font-size: 16px;
}

.note-card__text{
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.7;
  color: inherit;
  opacity: .95;
}

/* Sections */
.section{ padding: 70px 0; }
.section-head{
  display: grid;
  gap: 8px;
  margin-bottom: 22px;
}
.section-head h2{ margin: 0; font-size: 34px; line-height: 1.12; }
.section-head p{ margin: 0; color: var(--muted); max-width: 75ch; }

.cards{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.card{
  background: #fff;
  border: 1px solid rgba(0,0,0,.10);
  border-radius: var(--radius);
  box-shadow: 0 6px 18px rgba(0,0,0,.06);
  padding: 20px;
  min-height: 160px;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.card:hover{
  transform: translateY(-3px);
  box-shadow: 0 18px 40px rgba(0,0,0,.12);
  border-color: rgba(0,0,0,.14);
}

.card h3{ margin: 0 0 10px; font-size: 18px; }
.card p{ margin: 0; color: var(--muted); font-size: 14px; line-height: 1.7; }
.card__foot{ margin-top: 14px; font-weight: 700; color: var(--brand); }

.cta-band{
  margin-top: 26px;
  background: #fff;
  border: 1px solid rgba(0,0,0,.10);
  border-radius: var(--radius);
  box-shadow: 0 18px 50px rgba(0,0,0,.10);
  padding: 22px;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 14px;
}
.cta-band h3{ margin: 0 0 8px; font-size: 18px; }
.cta-band p{ margin: 0; color: var(--muted); }
.cta-band__actions{ display: flex; gap: 12px; flex-wrap: wrap; }

/* CTA grid */
.cta-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.cta{
  text-align: left;
  border: 1px solid rgba(0,0,0,.10);
  border-radius: var(--radius);
  background: #fff;
  padding: 18px;
  box-shadow: 0 6px 18px rgba(0,0,0,.06);
  cursor: pointer;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.cta:hover{
  transform: translateY(-3px);
  box-shadow: 0 18px 40px rgba(0,0,0,.12);
  border-color: rgba(0,0,0,.14);
}

.cta__title{ font-weight: 800; margin-bottom: 8px; }
.cta__text{ color: var(--muted); font-size: 14px; line-height: 1.7; }
.cta__foot{ margin-top: 12px; color: var(--brand); font-weight: 800; }

/* Alerts */
.alert{
  border-radius: var(--radius);
  padding: 12px 14px;
  margin: 0 0 16px;
  border: 1px solid rgba(0,0,0,.12);
}
.alert--success{ background: rgba(136,191,117,.18); border-color: rgba(136,191,117,.38); }
.alert--error{ background: rgba(255,0,0,.08); border-color: rgba(255,0,0,.18); }

/* Forms */
.form{ display: grid; gap: 14px; }
.form-grid{ display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field label{ display: block; font-size: 13px; font-weight: 700; margin: 0 0 6px; }
.field input,
.field select,
.field textarea{
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid rgba(0,0,0,.14);
  background: #fff;
  padding: 12px;
  font: inherit;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.field input, .field select{ height: 44px; }
.field textarea{ min-height: 120px; resize: vertical; }
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline: none;
  border-color: rgba(136,191,117,.85);
  box-shadow: 0 0 0 4px rgba(136,191,117,.18);
}
.hint{ font-size: 12px; color: rgba(95,95,95,.92); margin-top: 6px; }
.form-actions{ display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }

.hp{ position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.micro{ margin: 14px 0 0; font-size: 13px; color: rgba(95,95,95,.92); }

/* Modals */
.no-scroll{ overflow: hidden; }
.modal[hidden]{ display: none; }
.modal{
  position: fixed;
  inset: 0;
  z-index: 20000;
  display: grid;
  place-items: center;
}
.modal__overlay{
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.55);
}
.modal__panel{
  position: relative;
  width: min(920px, calc(100% - 24px));
  max-height: calc(100vh - 24px);
  overflow: auto;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: 0 30px 80px rgba(0,0,0,.30);
  border: 1px solid rgba(255,255,255,.18);
  transform: translateY(10px);
  opacity: 0;
  transition: transform 260ms var(--ease), opacity 260ms var(--ease);
}
.modal.is-open .modal__panel{
  transform: translateY(0);
  opacity: 1;
}
.modal__head{
  position: sticky;
  top: 0;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0,0,0,.08);
  padding: 16px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.modal__head h2{ margin: 0; font-size: 18px; }
.modal__close{
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid rgba(0,0,0,.14);
  background: #fff;
  cursor: pointer;
  font-size: 22px;
  line-height: 1;
  transition: transform var(--dur) var(--ease);
}
.modal__close:hover{ transform: translateY(-1px); }
.modal__panel form{ padding: 18px; }

/* Footer */
.site-footer{
  background: #0f2e22;
  color: rgba(255,255,255,.92);
  padding: 54px 0 22px;
}

.footer-grid{
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr 1.1fr;
  gap: 22px;
}

.footer-brand{ display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.footer-mark{ width: 46px; height: 46px; filter: brightness(2.4); }
.footer-name{ font-weight: 800; font-size: 18px; }
.footer-tag{ font-size: 13px; opacity: .8; }
.footer-lead{ margin: 0 0 14px; max-width: 50ch; opacity: .92; }
.footer-contact{ margin: 0; font-size: 14px; color: rgba(255,255,255,.88); }

.site-footer h3{
  margin: 0 0 12px;
  font-size: 14px;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: rgba(255,255,255,.8);
}

.footer-links{ list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.footer-links a:hover{ color: #fff; }

.footer-bottom{
  margin-top: 34px;
  padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,.12);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 18px;
  font-size: 13px;
  color: rgba(255,255,255,.74);
}

.footer-mini{ display: inline-flex; align-items: center; gap: 10px; }
.footer-mini a{ opacity: .9; }
.footer-mini a:hover{ opacity: 1; }

/* Responsive */
@media (max-width: 1100px){
  .cards{ grid-template-columns: 1fr 1fr; }
  .footer-grid{ grid-template-columns: 1fr 1fr; }
}

@media (max-width: 980px){
  .nav{ display: none; }
  .menu-btn{ display: inline-flex; align-items: center; justify-content: center; }
  .drawer{ display: block; }
  .hero__inner{ grid-template-columns: 1fr; }
  .hero__meta{ grid-template-columns: 1fr; }
  .cta-band{ grid-template-columns: 1fr; }
}

@media (max-width: 680px){
  .container{ width: min(var(--container), calc(100% - 28px)); }
  .brand span{ font-size: 34px; }
  .cards{ grid-template-columns: 1fr; }
  .cta-grid{ grid-template-columns: 1fr; }
  .form-grid{ grid-template-columns: 1fr; }
  .footer-grid{ grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce){
  *{ animation: none !important; transition: none !important; }
}