:root {
  --black: #0A0A0A;
  --white: #F5F5F0;
  --green: #0B3D2E;
  --green-light: #134D3A;
  --green-hover: #0E4A37;
  --gray-dark: #1A1A1A;
  --gray-mid: #3A3A3A;
  --gray-text: #6B6B66;
  --gray-light: #999;
  --gray-rule: #E0E0DB;
  --serif: 'Instrument Serif', Georgia, serif;
  --sans: 'DM Sans', -apple-system, sans-serif;
  --mono: 'JetBrains Mono', 'SF Mono', monospace;
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--white);
  color: var(--black);
  font-family: var(--sans);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

::selection {
  background: var(--green);
  color: var(--white);
}

a { color: inherit; text-decoration: none; }

/* ═══════════════════════════════════════
   REVEAL ANIMATION SYSTEM
   ═══════════════════════════════════════ */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.9s var(--ease-out-expo), transform 0.9s var(--ease-out-expo);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }
.reveal-delay-6 { transition-delay: 0.6s; }

.reveal-line {
  width: 0;
  transition: width 1.2s var(--ease-out-expo);
}
.reveal-line.visible { width: 100%; }

/* ═══════════════════════════════════════
   NAVIGATION
   ═══════════════════════════════════════ */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0 clamp(1.5rem, 4vw, 4rem);
  height: 64px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(245, 245, 240, 0);
  backdrop-filter: blur(0px);
  border-bottom: 1px solid transparent;
  transition: background 0.5s ease, backdrop-filter 0.5s ease, border-color 0.5s ease;
}

nav.scrolled {
  background: rgba(245, 245, 240, 0.88);
  backdrop-filter: blur(24px);
  border-bottom-color: var(--gray-rule);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.nav-brand svg {
  width: 22px; height: 22px;
  transition: transform 0.4s var(--ease-out-expo);
}

.nav-brand:hover svg {
  transform: rotate(-8deg) scale(1.08);
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}

.nav-links a {
  font-family: var(--mono);
  font-size: 0.62rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-mid);
  position: relative;
  transition: color 0.3s ease;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--green);
  transition: width 0.4s var(--ease-out-expo);
}

.nav-links a:hover { color: var(--green); }
.nav-links a:hover::after { width: 100%; }

.nav-cta {
  font-family: var(--mono);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--white);
  background: var(--green);
  padding: 0.55rem 1.25rem;
  border-radius: 2px;
  transition: background 0.3s ease, transform 0.3s ease;
}

.nav-cta:hover {
  background: var(--green-hover);
  transform: translateY(-1px);
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 28px;
  height: 20px;
  position: relative;
}

.mobile-toggle span {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--black);
  position: absolute;
  left: 0;
  transition: all 0.3s ease;
}

.mobile-toggle span:nth-child(1) { top: 0; }
.mobile-toggle span:nth-child(2) { top: 9px; }
.mobile-toggle span:nth-child(3) { top: 18px; }

/* ═══════════════════════════════════════
   HERO
   ═══════════════════════════════════════ */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 10rem clamp(1.5rem, 4vw, 4rem) 6rem;
  text-align: center;
  position: relative;
}

.hero-leaf {
  opacity: 0;
  transform: scale(0.7) rotate(-15deg);
  animation: heroLeafIn 1.4s var(--ease-out-expo) 0.2s forwards;
}

.hero-leaf svg {
  width: clamp(80px, 12vw, 130px);
  height: clamp(80px, 12vw, 130px);
}

@keyframes heroLeafIn {
  to {
    opacity: 1;
    transform: scale(1) rotate(0deg);
  }
}

.hero h1 {
  font-family: var(--serif);
  font-size: clamp(3.2rem, 8vw, 7rem);
  font-weight: 400;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-top: 2.5rem;
  opacity: 0;
  transform: translateY(40px);
  animation: heroTextIn 1s var(--ease-out-expo) 0.5s forwards;
}

.hero-tagline {
  font-family: var(--sans);
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 300;
  color: var(--gray-text);
  max-width: 520px;
  margin-top: 1.75rem;
  line-height: 1.6;
  opacity: 0;
  transform: translateY(30px);
  animation: heroTextIn 1s var(--ease-out-expo) 0.7s forwards;
}

.hero-cta-group {
  display: flex;
  gap: 1rem;
  margin-top: 3rem;
  opacity: 0;
  transform: translateY(25px);
  animation: heroTextIn 1s var(--ease-out-expo) 0.9s forwards;
}

@keyframes heroTextIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.btn-primary {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--white);
  background: var(--green);
  padding: 0.85rem 2.25rem;
  border: 1px solid var(--green);
  border-radius: 2px;
  cursor: pointer;
  transition: all 0.35s var(--ease-out-expo);
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.08);
  transform: translateX(-101%);
  transition: transform 0.5s var(--ease-out-expo);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(11, 61, 46, 0.2);
}

.btn-primary:hover::before { transform: translateX(0); }

.btn-secondary {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-mid);
  background: transparent;
  padding: 0.85rem 2.25rem;
  border: 1px solid var(--gray-rule);
  border-radius: 2px;
  cursor: pointer;
  transition: all 0.35s var(--ease-out-expo);
}

.btn-secondary:hover {
  border-color: var(--green);
  color: var(--green);
  transform: translateY(-2px);
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  opacity: 0;
  animation: heroTextIn 1s var(--ease-out-expo) 1.3s forwards;
}

.hero-scroll-indicator span {
  font-family: var(--mono);
  font-size: 0.55rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gray-light);
}

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

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.6); }
  50% { opacity: 1; transform: scaleY(1); }
}

/* ═══════════════════════════════════════
   SHARED SECTION STYLES
   ═══════════════════════════════════════ */
.section-padding {
  padding: clamp(5rem, 10vw, 9rem) clamp(1.5rem, 4vw, 4rem);
}

.section-inner {
  max-width: 1140px;
  margin: 0 auto;
}

.section-label {
  font-family: var(--mono);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 2rem;
}

.section-headline {
  font-family: var(--serif);
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 400;
  letter-spacing: -0.025em;
  line-height: 1.15;
  max-width: 680px;
}

.section-rule {
  height: 1px;
  background: var(--gray-rule);
}

/* ═══════════════════════════════════════
   PHILOSOPHY
   ═══════════════════════════════════════ */
.philosophy {
  background: var(--black);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.philosophy::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(11,61,46,0.12) 0%, transparent 70%);
  pointer-events: none;
}

.philosophy .section-headline {
  font-size: clamp(1.75rem, 3.5vw, 2.8rem);
  max-width: 780px;
  line-height: 1.35;
  color: rgba(245,245,240,0.9);
}

.philosophy .section-headline em {
  color: var(--white);
  font-style: normal;
  position: relative;
}

.philosophy .section-headline em::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--green);
  opacity: 0.5;
}

.philosophy-foot {
  margin-top: 3.5rem;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--gray-light);
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.philosophy-foot::before {
  content: '';
  width: 40px;
  height: 1px;
  background: rgba(245,245,240,0.15);
}

/* ═══════════════════════════════════════
   SERVICES (What We Do)
   ═══════════════════════════════════════ */
.services-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 4rem;
}

.service-pillar {
  padding: clamp(2rem, 3.5vw, 3rem);
  border: 1px solid var(--gray-rule);
  border-radius: 3px;
  transition: border-color 0.4s ease, box-shadow 0.4s ease;
  position: relative;
}

.service-pillar:hover {
  border-color: rgba(11,61,46,0.3);
  box-shadow: 0 8px 40px rgba(11,61,46,0.04);
}

.service-pillar::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 3px;
  height: 0;
  background: var(--green);
  border-radius: 0 0 3px 0;
  transition: height 0.6s var(--ease-out-expo);
}

.service-pillar:hover::before { height: 100%; }

.pillar-label {
  font-family: var(--mono);
  font-size: 0.58rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 1.25rem;
}

.pillar-title {
  font-family: var(--serif);
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  letter-spacing: -0.015em;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.pillar-desc {
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--gray-text);
  margin-bottom: 2rem;
}

.pillar-list {
  list-style: none;
}

.pillar-list li {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  color: var(--gray-mid);
  padding: 0.65rem 0;
  border-top: 1px solid var(--gray-rule);
  transition: color 0.25s ease, padding-left 0.35s var(--ease-out-expo);
}

.pillar-list li:hover {
  color: var(--green);
  padding-left: 0.5rem;
}

/* ═══════════════════════════════════════
   PRINCIPLES
   ═══════════════════════════════════════ */
.principles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 4rem;
}

.principle-card {
  padding: clamp(1.75rem, 2.5vw, 2.5rem);
  border: 1px solid var(--gray-rule);
  border-radius: 3px;
  transition: all 0.4s var(--ease-out-expo);
  cursor: default;
}

.principle-card:hover {
  border-color: rgba(11,61,46,0.3);
  background: rgba(11,61,46,0.03);
  transform: translateY(-4px);
}

.principle-num {
  font-family: var(--mono);
  font-size: 0.55rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 1.25rem;
}

.principle-title {
  font-family: var(--serif);
  font-size: 1.35rem;
  letter-spacing: -0.01em;
  margin-bottom: 0.85rem;
}

.principle-desc {
  font-size: 0.85rem;
  line-height: 1.65;
  color: var(--gray-text);
}

/* ═══════════════════════════════════════
   PROOF / METRICS
   ═══════════════════════════════════════ */
.proof {
  background: var(--black);
  color: var(--white);
}

.proof-statement {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  line-height: 1.5;
  color: rgba(245,245,240,0.85);
  max-width: 640px;
  margin-bottom: 4rem;
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.proof-stat {
  text-align: center;
  padding: 2rem 0;
  position: relative;
}

.proof-stat::after {
  content: '';
  position: absolute;
  right: 0;
  top: 20%;
  height: 60%;
  width: 1px;
  background: rgba(245,245,240,0.08);
}

.proof-stat:last-child::after { display: none; }

.stat-number {
  font-family: var(--serif);
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--white);
  margin-bottom: 0.5rem;
}

.stat-label {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray-light);
  line-height: 1.5;
}

/* ═══════════════════════════════════════
   VOICE SECTION
   ═══════════════════════════════════════ */
.voice-examples {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  margin-top: 4rem;
}

.voice-col-title {
  font-family: var(--mono);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--gray-rule);
}

.voice-col-title.do { color: var(--green); }
.voice-col-title.dont { color: #8B2020; }

.voice-item {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--gray-text);
  padding-left: 1.25rem;
  border-left: 2px solid var(--gray-rule);
  margin-bottom: 1.25rem;
  transition: border-color 0.3s ease;
}

.voice-item.good { border-left-color: var(--green); }
.voice-item.good:hover { border-left-color: var(--green-hover); }
.voice-item.bad { border-left-color: #8B2020; opacity: 0.55; }

/* ═══════════════════════════════════════
   CTA / CONTACT
   ═══════════════════════════════════════ */
.cta-section {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.cta-section .section-headline {
  max-width: 560px;
  margin: 0 auto;
}

.cta-sub {
  font-size: 1rem;
  color: var(--gray-text);
  margin-top: 1.25rem;
  max-width: 480px;
}

.cta-email {
  display: inline-block;
  margin-top: 2.5rem;
  font-family: var(--mono);
  font-size: clamp(0.85rem, 1.5vw, 1.1rem);
  font-weight: 400;
  letter-spacing: 0.03em;
  color: var(--green);
  padding-bottom: 4px;
  border-bottom: 1px solid rgba(11,61,46,0.25);
  transition: border-color 0.3s ease;
}

.cta-email:hover {
  border-bottom-color: var(--green);
}

/* ═══════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════ */
footer {
  padding: 3rem clamp(1.5rem, 4vw, 4rem);
  border-top: 1px solid var(--gray-rule);
}

.footer-inner {
  max-width: 1140px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--mono);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray-light);
}

.footer-brand svg { width: 16px; height: 16px; }

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

.footer-links a {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray-light);
  transition: color 0.3s ease;
}

.footer-links a:hover { color: var(--green); }

.footer-copy {
  font-family: var(--mono);
  font-size: 0.55rem;
  letter-spacing: 0.08em;
  color: var(--gray-light);
}

/* ═══════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════ */
@media (max-width: 900px) {
  .services-grid { grid-template-columns: 1fr; }
  .principles-grid { grid-template-columns: 1fr 1fr; }
  .proof-grid { grid-template-columns: 1fr 1fr; }
  .proof-stat::after { display: none; }
  .voice-examples { grid-template-columns: 1fr; gap: 2.5rem; }
}

@media (max-width: 640px) {
  .nav-links, .nav-cta { display: none; }
  .mobile-toggle { display: block; }
  .principles-grid { grid-template-columns: 1fr; }
  .proof-grid { grid-template-columns: 1fr 1fr; }
  .hero h1 { letter-spacing: -0.03em; }
  .hero-cta-group { flex-direction: column; width: 100%; max-width: 320px; }
  .hero-cta-group .btn-primary,
  .hero-cta-group .btn-secondary { width: 100%; text-align: center; }
  .footer-inner { flex-direction: column; gap: 1.5rem; text-align: center; }
  .footer-links { flex-wrap: wrap; justify-content: center; }
}

/* ═══════════════════════════════════════
   MOBILE MENU
   ═══════════════════════════════════════ */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 999;
  background: var(--white);
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.mobile-menu.open {
  display: flex;
  opacity: 1;
  pointer-events: all;
}

.mobile-menu a {
  font-family: var(--serif);
  font-size: 2rem;
  color: var(--black);
  transition: color 0.3s ease;
}

.mobile-menu a:hover { color: var(--green); }

.mobile-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--gray-mid);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}