/* =============================================
   ROOT & RESET
   ============================================= */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --ink:          #1a2e1e;   /* deep forest */
  --paper:        #f4f7f2;   /* cool white with a breath of green */
  --paper-dark:   #e4ede1;   /* soft sage background */
  --accent:       #3a6b43;   /* pine green */
  --accent-light: #7dab7f;   /* lighter moss */
  --highlight:    #b8d4b0;   /* pale fern */
  --muted:        #5a7060;   /* muted forest floor */
  --serif:        'DM Serif Display', Georgia, serif;
  --sans:         'DM Sans', sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--sans);
  background-color: var(--paper);
  color: var(--ink);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* =============================================
   NAV
   ============================================= */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 3rem;
  background: var(--ink);
  border-bottom: 1px solid rgba(15,14,13,0.08);
}

.nav-logo {
  font-family: var(--serif);
  font-size: 1.15rem;
  color: var(--accent-light);
  font-weight: 400;
  letter-spacing: 0.01em;
}

.nav-logo em {
  font-style: italic;
  color: var(--accent-light);
}

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

.nav-links a {
  text-decoration: none;
  color: var(--accent-light);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--accent);
}

/* =============================================
   HERO
   ============================================= */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  padding: 8rem 3rem 4rem;
  gap: 4rem;
  max-width: 1200px;
  margin: 0 auto;
}

.hero-eyebrow {
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
  opacity: 0;
  animation: fadeUp 0.6s ease forwards 0.1s;
}

.hero-name {
  font-family: var(--serif);
  font-size: clamp(3.5rem, 7vw, 6rem);
  line-height: 1.05;
  font-weight: 400;
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeUp 0.6s ease forwards 0.25s;
}

.hero-name em {
  color: var(--accent-light);
  font-style: italic;
}

.hero-sub {
  font-size: 1.05rem;
  color: var(--muted);
  font-weight: 300;
  line-height: 1.8;
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: fadeUp 0.6s ease forwards 0.4s;
}

.btn-primary {
  display: inline-block;
  padding: 0.85rem 2.2rem;
  background: var(--ink);
  color: var(--paper);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: background 0.2s, transform 0.2s;
  opacity: 0;
  animation: fadeUp 0.6s ease forwards 0.55s;
}

.btn-primary:hover {
  background: var(--accent);
  transform: translateY(-2px);
}

/* Animated bar chart illustration */
.hero-visual {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  height: 320px;
  opacity: 0;
  animation: fadeIn 0.8s ease forwards 0.7s;
}

.chart-bars {
  display: flex;
  align-items: flex-end;
  gap: 12px;
  height: 100%;
  padding: 2rem;
  border-left: 2px solid rgba(15,14,13,0.12);
  border-bottom: 2px solid rgba(15,14,13,0.12);
}

.bar {
  width: 36px;
  height: var(--h);
  background: var(--ink);
  transform-origin: bottom;
  transform: scaleY(0);
  animation: growBar 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
  animation-delay: calc(0.7s + var(--delay));
  transition: background 0.2s;
}

.bar:nth-child(even) {
  background: var(--accent);
}

.bar:hover {
  background: var(--accent-light);
}

/* =============================================
   SECTION SHARED
   ============================================= */
.section-label {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

/* =============================================
   ABOUT
   ============================================= */
.about {
  background: var(--ink);
  color: var(--paper);
  padding: 7rem 3rem;
}

.about-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.about .section-label {
  color: var(--accent-light);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 5rem;
  align-items: start;
  margin-top: 0.5rem;
}

.about-text h2 {
  font-family: var(--serif);
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 400;
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

.about-text h2 em {
  color: var(--accent-light);
  font-style: italic;
}

.about-text p {
  color: rgba(245, 242, 236, 0.75);
  margin-bottom: 1rem;
  font-weight: 300;
  font-size: 1rem;
}

.about-skills h3 {
  font-family: var(--serif);
  font-size: 1.1rem;
  font-weight: 400;
  margin-bottom: 1.2rem;
  color: var(--paper);
}

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

.skill-list li {
  padding: 0.6rem 0;
  border-bottom: 1px solid rgba(245, 242, 236, 0.1);
  font-size: 0.95rem;
  color: rgba(245, 242, 236, 0.7);
  font-weight: 300;
  transition: color 0.2s, padding-left 0.2s;
}

.skill-list li:hover {
  color: var(--accent-light);
  padding-left: 0.4rem;
}

/* =============================================
   PROJECTS
   ============================================= */
.projects {
  padding: 7rem 3rem;
}

.projects-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.projects h2 {
  font-family: var(--serif);
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 400;
  margin-bottom: 3.5rem;
}

.project-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5px;
  background: rgba(15,14,13,0.12);
  border: 1.5px solid rgba(15,14,13,0.12);
}

.project-card {
  background: var(--paper);
  padding: 2.5rem;
  display: flex;
  gap: 1.5rem;
  transition: background 0.25s;
}

.project-card:hover {
  background: var(--paper-dark);
}

.project-number {
  font-family: var(--serif);
  font-size: 2.5rem;
  color: rgba(15,14,13,0.12);
  font-weight: 400;
  line-height: 1;
  flex-shrink: 0;
  transition: color 0.25s;
}

.project-card:hover .project-number {
  color: var(--accent);
}

.project-body h3 {
  font-family: var(--serif);
  font-size: 1.25rem;
  font-weight: 400;
  margin-bottom: 0.75rem;
}

.project-body p {
  font-size: 0.92rem;
  color: var(--muted);
  font-weight: 300;
  line-height: 1.7;
  margin-bottom: 1.2rem;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.project-tags span {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  padding: 0.25rem 0.65rem;
  border: 1px solid rgba(15,14,13,0.2);
  color: var(--muted);
}

/* =============================================
   CONTACT
   ============================================= */
.contact {
  background: var(--paper-dark);
  padding: 7rem 3rem;
  text-align: center;
}

.contact-inner {
  max-width: 640px;
  margin: 0 auto;
}

.contact h2 {
  font-family: var(--serif);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 400;
  margin-bottom: 1rem;
}

.contact p {
  color: var(--muted);
  font-weight: 300;
  margin-bottom: 2.5rem;
}

.contact-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.contact-link {
  color: var(--ink);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  border-bottom: 2px solid var(--accent);
  padding-bottom: 2px;
  transition: color 0.2s, border-color 0.2s;
}

.contact-link:hover {
  color: var(--accent);
}

/* =============================================
   FOOTER
   ============================================= */
footer {
  padding: 2rem 3rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--muted);
  background: var(--ink);
  color: rgba(245, 242, 236, 0.35);
}

/* =============================================
   ANIMATIONS
   ============================================= */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes growBar {
  from { transform: scaleY(0); }
  to   { transform: scaleY(1); }
}

/* =============================================
   RESPONSIVE
   ============================================= */
/* =============================================
   SCROLL REVEAL (driven by script.js)
   ============================================= */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

/* Active nav link */
.nav-links a.active {
  color: var(--accent);
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 800px) {
  nav { padding: 1.25rem 1.5rem; }

  .hero {
    grid-template-columns: 1fr;
    padding: 7rem 1.5rem 3rem;
    gap: 3rem;
  }

  .hero-visual { height: 200px; }

  .about, .projects, .contact { padding: 5rem 1.5rem; }

  .about-grid { grid-template-columns: 1fr; gap: 3rem; }

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