* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --dark: #1a1a2e;
  --darker: #12121f;
  --accent: #007a5e;
  --accent-light: #00a87f;
  --white: #ffffff;
  --off-white: #f4f9f6;
  --light: #e8f0ed;
  --text: #2c2c2c;
  --muted: #5a6e67;
}
body { font-family: 'Georgia', serif; color: var(--text); background: var(--white); line-height: 1.75; }

/* NAV */
nav {
  position: fixed; top: 0; left: 0; right: 0;
  background: var(--darker);
  padding: 1rem 2.5rem;
  display: flex; justify-content: space-between; align-items: center;
  z-index: 100;
  border-bottom: 2px solid var(--accent);
}
.nav-logo { color: var(--white); font-family: 'Arial', sans-serif; font-size: 1.1rem; font-weight: bold; letter-spacing: 0.04em; text-decoration: none; }
.nav-logo span { color: var(--accent-light); }
nav ul { list-style: none; display: flex; gap: 2rem; flex-wrap: wrap; }
nav ul a { color: #b0ccc5; text-decoration: none; font-family: 'Arial', sans-serif; font-size: 0.87rem; letter-spacing: 0.04em; transition: color 0.2s; }
nav ul a:hover, nav ul a.active { color: var(--accent-light); }
.nav-hamburger { display: none; background: none; border: none; cursor: pointer; }
.nav-hamburger span { display: block; width: 22px; height: 2px; background: #b0ccc5; margin: 5px 0; }
@media (max-width: 640px) {
  .nav-hamburger { display: block; }
  nav ul { display: none; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background: var(--darker); padding: 1rem 2rem; gap: 1rem; border-top: 1px solid #2a3a35; }
  nav ul.open { display: flex; }
}

/* HERO */
.hero {
  background: var(--dark);
  color: var(--white);
  min-height: 90vh;
  display: flex; align-items: center;
  padding: 8rem 2.5rem 5rem;
  position: relative; overflow: hidden;
}
.hero::after {
  content: '';
  position: absolute; top: 0; right: 0; bottom: 0; width: 40%;
  background: linear-gradient(135deg, transparent 30%, rgba(0,122,94,0.08) 100%);
  pointer-events: none;
}
.hero-inner { max-width: 800px; margin: 0 auto; position: relative; z-index: 1; }
.eyebrow { display: inline-block; color: var(--accent-light); font-family: 'Arial', sans-serif; font-size: 0.75rem; letter-spacing: 0.18em; text-transform: uppercase; margin-bottom: 1.5rem; border-left: 3px solid var(--accent); padding-left: 0.75rem; }
.hero h1 { font-size: clamp(2rem, 5vw, 3.6rem); font-weight: normal; line-height: 1.15; margin-bottom: 1.5rem; }
.hero h1 em { color: var(--accent-light); font-style: italic; }
.hero-tagline { font-size: 1.2rem; color: #9dc4b8; font-style: italic; margin-bottom: 1.25rem; border-left: 3px solid var(--accent); padding-left: 1rem; }
.hero p { font-size: 1rem; color: #a8c4bc; max-width: 580px; margin-bottom: 2.5rem; }
.btn-row { display: flex; gap: 1rem; flex-wrap: wrap; }
.btn { display: inline-block; padding: 0.8rem 1.75rem; font-family: 'Arial', sans-serif; font-size: 0.88rem; letter-spacing: 0.04em; text-decoration: none; transition: all 0.2s; }
.btn-primary { background: var(--accent); color: var(--white); }
.btn-primary:hover { background: var(--accent-light); }
.btn-ghost { border: 1px solid rgba(0,168,127,0.5); color: var(--accent-light); background: transparent; }
.btn-ghost:hover { border-color: var(--accent-light); background: rgba(0,122,94,0.12); }

/* SECTIONS */
section { padding: 5rem 2.5rem; }
.container { max-width: 980px; margin: 0 auto; }
.section-eye { color: var(--accent); font-family: 'Arial', sans-serif; font-size: 0.73rem; letter-spacing: 0.18em; text-transform: uppercase; margin-bottom: 0.6rem; }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); font-weight: normal; color: var(--dark); line-height: 1.3; margin-bottom: 0.75rem; }
.intro { font-size: 1rem; color: var(--muted); max-width: 680px; margin-bottom: 3rem; }

/* THREE BLOCKS */
.three-blocks { background: var(--off-white); padding: 4rem 2.5rem; }
.three-blocks .container { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 1.75rem; }
.block { background: white; padding: 2rem; border-top: 3px solid var(--accent); }
.block h3 { font-family: 'Arial', sans-serif; font-size: 0.85rem; letter-spacing: 0.05em; color: var(--accent); text-transform: uppercase; margin-bottom: 0.6rem; }
.block p { font-size: 0.93rem; color: var(--muted); }

/* APPROACH PHASES */
.phases { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1.5rem; margin: 2.5rem 0; }
.phase { padding: 1.75rem; background: var(--off-white); }
.phase-num { font-family: 'Arial', sans-serif; font-size: 2rem; font-weight: bold; color: var(--light); line-height: 1; margin-bottom: 0.4rem; }
.phase h4 { font-family: 'Arial', sans-serif; font-size: 0.82rem; letter-spacing: 0.06em; color: var(--accent); text-transform: uppercase; margin-bottom: 0.4rem; }
.phase p { font-size: 0.9rem; color: var(--muted); }
.method-tags { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 1.5rem; }
.method-tag { background: var(--dark); color: #9dc4b8; font-family: 'Arial', sans-serif; font-size: 0.8rem; padding: 0.5rem 0.9rem; letter-spacing: 0.02em; }

/* PROJECTS */
.proj-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.75rem; }
.proj-card { background: var(--off-white); padding: 2rem; border-left: 4px solid var(--accent); text-decoration: none; color: inherit; display: block; transition: border-color 0.2s, background 0.2s; }
.proj-card:hover { background: var(--light); border-color: var(--accent-light); }
.proj-card .status { font-family: 'Arial', sans-serif; font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent-light); margin-bottom: 0.4rem; }
.proj-card h3 { font-size: 1.05rem; color: var(--dark); margin-bottom: 0.2rem; }
.proj-card .client { font-family: 'Arial', sans-serif; font-size: 0.82rem; color: var(--muted); margin-bottom: 0.75rem; }
.proj-card p { font-size: 0.9rem; color: var(--muted); line-height: 1.65; }

/* ABOUT */
.about-dark { background: var(--dark); color: white; }
.about-dark h2 { color: white; }
.about-dark .section-eye { color: var(--accent-light); }
.about-grid { display: grid; grid-template-columns: 3fr 2fr; gap: 4rem; align-items: start; margin-top: 2rem; }
.about-bio p { color: #b0ccc5; margin-bottom: 1rem; font-size: 0.98rem; }
.tl-item { border-left: 2px solid var(--accent); padding-left: 1.25rem; margin-bottom: 1.5rem; }
.tl-item .tl-label { font-family: 'Arial', sans-serif; font-size: 0.7rem; color: var(--accent-light); letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 0.2rem; }
.tl-item p { color: #9dc4b8; font-size: 0.88rem; }
@media (max-width: 680px) { .about-grid { grid-template-columns: 1fr; gap: 2rem; } }

/* CONTACT STRIP */
.contact-strip { background: var(--accent); color: white; padding: 4rem 2.5rem; text-align: center; }
.contact-strip h2 { color: white; margin-bottom: 0.75rem; }
.contact-strip p { color: rgba(255,255,255,0.85); font-size: 1rem; max-width: 560px; margin: 0 auto 2rem; }
.contact-strip .btn-white { background: white; color: var(--accent); font-weight: bold; }
.contact-strip .btn-white:hover { background: var(--off-white); }

/* PAGE HERO (inner pages) */
.page-hero { background: var(--dark); color: white; padding: 8rem 2.5rem 3.5rem; }
.page-hero h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: normal; color: white; margin-bottom: 0.75rem; }
.page-hero p { color: #9dc4b8; font-size: 1rem; max-width: 600px; }

/* FOOTER */
footer { background: var(--darker); color: #4a6660; text-align: center; padding: 1.5rem 2rem; font-family: 'Arial', sans-serif; font-size: 0.8rem; line-height: 1.9; }
footer a { color: #6a9990; text-decoration: none; }
footer a:hover { color: var(--accent-light); }
footer .footer-nav { display: flex; justify-content: center; gap: 1.5rem; margin-bottom: 0.75rem; flex-wrap: wrap; }