/* ============================================================
   COPPERGROVE SYSTEMS — Stylesheet
   Palette:
     --bg:        #0F1A14  (deep forest night)
     --surface:   #1A2B20  (dark moss)
     --copper:    #B87333  (copper accent)
     --sage:      #7A9E7E  (sage secondary)
     --text:      #F0EDE6  (warm white)
     --muted:     #8A9B8E  (stone)
     --border:    #243329  (subtle border)
   ============================================================ */

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

:root {
  --bg:       #0F1A14;
  --surface:  #1A2B20;
  --copper:   #B87333;
  --copper-light: #C9894A;
  --sage:     #7A9E7E;
  --text:     #F0EDE6;
  --muted:    #8A9B8E;
  --border:   #243329;
  --radius:   6px;
  --transition: 0.25s ease;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--copper); }

/* ── CONTAINER ── */
.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── TYPOGRAPHY ── */
h1, h2, h3 {
  font-family: 'Raleway', sans-serif;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
}

.btn--primary {
  background: var(--copper);
  color: #0F1A14;
}
.btn--primary:hover {
  background: var(--copper-light);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(184, 115, 51, 0.3);
}

.btn--ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn--ghost:hover {
  border-color: var(--copper);
  color: var(--copper);
}

.btn--full { width: 100%; justify-content: center; }

/* ── SECTION HEADERS ── */
.section-eyebrow {
  font-family: 'Inter Tight', sans-serif;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--copper);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  color: var(--text);
  max-width: 560px;
}

.section-header {
  margin-bottom: 56px;
}

/* ── LOGO ── */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo__mark {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}

.logo__text {
  font-family: 'Raleway', sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
}

.logo__systems {
  color: var(--copper);
}

/* ══════════════════════════════════════════
   HEADER
══════════════════════════════════════════ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 20px 0;
  transition: all 0.3s ease;
}

.header.scrolled {
  background: rgba(15, 26, 20, 0.95);
  backdrop-filter: blur(12px);
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav__link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted);
  text-decoration: none;
  transition: color var(--transition);
  position: relative;
}

.nav__link:not(.nav__link--cta)::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--copper);
  transition: width var(--transition);
}

.nav__link:not(.nav__link--cta):hover {
  color: var(--text);
}

.nav__link:not(.nav__link--cta):hover::after {
  width: 100%;
}

.nav__link--cta {
  background: var(--copper);
  color: #0F1A14;
  padding: 9px 20px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.85rem;
}

.nav__link--cta:hover {
  background: var(--copper-light);
  color: #0F1A14;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ══════════════════════════════════════════
   HERO
══════════════════════════════════════════ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.4;
}

.hero__inner {
  position: relative;
  z-index: 2;
}

.hero__content {
  max-width: 680px;
}

.hero__eyebrow {
  font-family: 'Inter Tight', sans-serif;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--copper);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.hero__eyebrow::before {
  content: '';
  display: block;
  width: 32px;
  height: 1px;
  background: var(--copper);
}

.hero__headline {
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  color: var(--text);
  margin-bottom: 24px;
  line-height: 1.1;
}

.hero__accent {
  color: var(--copper);
}

.hero__sub {
  font-size: 1.05rem;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 540px;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero__scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 2;
}

.hero__scroll span {
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--copper), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.4; transform: scaleY(0.8); }
  50% { opacity: 1; transform: scaleY(1); }
}

/* ══════════════════════════════════════════
   SERVICES
══════════════════════════════════════════ */
.services {
  padding: 120px 0;
  border-top: 1px solid var(--border);
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.service-card {
  background: var(--bg);
  padding: 40px 36px;
  transition: background var(--transition);
  position: relative;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--copper);
  transform: scaleX(0);
  transition: transform var(--transition);
  transform-origin: left;
}

.service-card:hover {
  background: var(--surface);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-card__icon {
  width: 40px;
  height: 40px;
  color: var(--copper);
  margin-bottom: 20px;
}

.service-card__icon svg {
  width: 100%;
  height: 100%;
}

.service-card__title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
  font-family: 'Raleway', sans-serif;
}

.service-card__desc {
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.7;
}

/* ══════════════════════════════════════════
   WHY
══════════════════════════════════════════ */
.why {
  padding: 120px 0;
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.why__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
}

.why-item__number {
  font-family: 'Raleway', sans-serif;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--copper);
  margin-bottom: 16px;
  opacity: 0.7;
}

.why-item__title {
  font-size: 1.1rem;
  color: var(--text);
  margin-bottom: 12px;
  font-family: 'Raleway', sans-serif;
}

.why-item__desc {
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.75;
}

/* ══════════════════════════════════════════
   VISION
══════════════════════════════════════════ */
.vision {
  padding: 120px 0;
}

.vision__inner {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.vision__quote {
  font-family: 'Raleway', sans-serif;
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 300;
  font-style: normal;
  color: var(--text);
  line-height: 1.5;
  margin: 24px 0 40px;
  letter-spacing: -0.01em;
}

.vision__quote strong {
  color: var(--copper);
  font-weight: 600;
}

.vision__line {
  width: 48px;
  height: 2px;
  background: var(--copper);
  margin: 0 auto 32px;
}

.vision__sub {
  font-size: 0.95rem;
  color: var(--muted);
  line-height: 1.8;
  max-width: 600px;
  margin: 0 auto;
}

/* ══════════════════════════════════════════
   CONTACT
══════════════════════════════════════════ */
.contact {
  padding: 120px 0;
  background: var(--surface);
  border-top: 1px solid var(--border);
}

.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.contact__desc {
  font-size: 0.95rem;
  color: var(--muted);
  line-height: 1.75;
  margin: 20px 0 40px;
}

.contact__details {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact__detail {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.contact__detail-label {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--copper);
  font-family: 'Inter Tight', sans-serif;
  font-weight: 500;
}

.contact__detail-value {
  font-size: 0.9rem;
  color: var(--text);
  text-decoration: none;
}

.contact__detail-value:hover {
  color: var(--copper);
}

/* FORM */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--muted);
  text-transform: uppercase;
  font-family: 'Inter Tight', sans-serif;
}

.form-input {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  transition: border-color var(--transition);
  outline: none;
  width: 100%;
}

.form-input::placeholder {
  color: var(--muted);
  opacity: 0.5;
}

.form-input:focus {
  border-color: var(--copper);
  box-shadow: 0 0 0 3px rgba(184, 115, 51, 0.12);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

/* ══════════════════════════════════════════
   FOOTER
══════════════════════════════════════════ */
.footer {
  padding: 32px 0;
  border-top: 1px solid var(--border);
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

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

.footer__nav {
  display: flex;
  gap: 24px;
}

.footer__link {
  font-size: 0.8rem;
  color: var(--muted);
  text-decoration: none;
  transition: color var(--transition);
}

.footer__link:hover {
  color: var(--copper);
}

/* ══════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════ */
@media (max-width: 900px) {
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .why__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .contact__inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }
}

@media (max-width: 640px) {
  .nav {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 40px;
    z-index: 99;
  }

  .nav.open {
    display: flex;
  }

  .nav__link {
    font-size: 1.2rem;
  }

  .nav-toggle {
    display: flex;
    z-index: 101;
  }

  .nav-toggle.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .nav-toggle.open span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .services__grid {
    grid-template-columns: 1fr;
  }

  .hero__actions {
    flex-direction: column;
  }

  .btn { width: 100%; justify-content: center; }

  .footer__inner {
    flex-direction: column;
    text-align: center;
  }
}

/* ── FADE IN ANIMATION ── */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .fade-in { opacity: 1; transform: none; transition: none; }
  .hero__scroll-line { animation: none; }
}