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

:root {
  --ink:       #1a1a1a;
  --ink-mid:   #4a4a4a;
  --ink-light: #7a7a7a;
  --paper:     #f9f7f4;
  --white:     #ffffff;
  --accent:    #1a3a2a;
  --accent-mid:#2d5c42;
  --rule:      #e0dbd4;
  --mono-bg:   #eeeae4;
  --gap-s: 1rem;
  --gap-m: 2rem;
  --gap-l: 4rem;
  --gap-xl: 7rem;
  --max: 860px;
  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* LAYOUT */
.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gap-m);
}

section { padding: var(--gap-xl) 0; }
section + section { border-top: 1px solid var(--rule); }

/* NAV */
nav {
  padding: 1.5rem var(--gap-m);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  max-width: var(--max);
  margin: 0 auto;
}

.nav-name {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
}

.nav-links a {
  text-decoration: none;
  color: var(--ink-mid);
  font-size: 0.9rem;
}

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

.nav-cta {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-mid);
  text-decoration: none;
  border-bottom: 1px solid var(--accent-mid);
  padding-bottom: 1px;
  transition: opacity 0.15s;
}

.nav-cta:hover { opacity: 0.6; }

.nav-toggle {
  display: none;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: var(--paper);
  color: var(--ink);
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.nav-toggle-bar {
  display: block;
  width: 1.1rem;
  height: 1px;
  margin: 0.2rem 0;
  background: currentColor;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

nav.is-open .nav-toggle-bar:nth-child(1) {
  transform: translateY(0.375rem) rotate(45deg);
}

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

nav.is-open .nav-toggle-bar:nth-child(3) {
  transform: translateY(-0.375rem) rotate(-45deg);
}

/* HERO */
.hero { padding: var(--gap-l) 0 var(--gap-xl); }

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-light);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 300;
  line-height: 1.15;
  color: var(--ink);
  max-width: 680px;
  margin-bottom: var(--gap-m);
}

.hero h1 em {
  font-style: italic;
  font-weight: 300;
  color: var(--accent-mid);
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--ink-mid);
  max-width: 560px;
  margin-bottom: var(--gap-m);
  line-height: 1.65;
}

.hero-stat {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  background: var(--mono-bg);
  color: var(--ink-mid);
  padding: 0.35rem 0.75rem;
  border-radius: 2px;
  margin-bottom: var(--gap-m);
}

/* BUTTONS */
.btn {
  display: inline-block;
  background: var(--accent);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.85rem 1.75rem;
  border-radius: 3px;
  text-decoration: none;
  transition: background 0.15s;
}

.btn:hover { background: var(--accent-mid); }

/* SECTION HEADINGS */
.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-light);
  margin-bottom: 2.5rem;
}

h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 300;
  line-height: 1.25;
  margin-bottom: var(--gap-m);
}

h3 {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--ink);
}

p { margin-bottom: 1.1rem; color: var(--ink-mid); }
p:last-child { margin-bottom: 0; }

/* PROBLEM SECTION */
.problem-cards {
  display: grid;
  gap: var(--gap-m);
  margin-top: var(--gap-m);
}

.problem-card {
  background: var(--white);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--accent-mid);
  padding: 1.5rem 1.75rem;
  border-radius: 0 3px 3px 0;
}

.problem-card h3 { margin-bottom: 0.6rem; }

.highlight {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  background: var(--mono-bg);
  color: var(--accent);
  padding: 0.2rem 0.5rem;
  border-radius: 2px;
  display: inline;
}

/* SKILLS LIST */
.skills-list {
  list-style: none;
  margin-top: var(--gap-m);
  display: grid;
  gap: 0.6rem;
}

.skills-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  color: var(--ink-mid);
  font-size: 0.97rem;
}

.skills-list li::before {
  content: '\2192';
  font-family: var(--font-mono);
  color: var(--accent-mid);
  flex-shrink: 0;
  margin-top: 0.05rem;
}

/* PROJECTS */
.projects-grid {
  display: grid;
  gap: var(--gap-m);
  margin-top: var(--gap-m);
}

.project-card {
  background: var(--white);
  border: 1px solid var(--rule);
  border-radius: 4px;
  overflow: hidden;
}

.project-card picture {
  display: block;
}

.project-img {
  width: 100%;
  height: 260px;
  object-fit: contain;
  object-position: center center;
  display: block;
  padding: 0.9rem 0.9rem 0.5rem;
  background: linear-gradient(180deg, #f3efe9 0%, var(--mono-bg) 100%);
  border-bottom: 1px solid var(--rule);
}

.project-img-placeholder {
  width: 100%;
  height: 260px;
  background: linear-gradient(180deg, #f3efe9 0%, var(--mono-bg) 100%);
  border-bottom: 1px solid var(--rule);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-light);
}

.project-body { padding: 1.5rem 1.75rem; }

.project-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-mid);
  margin-bottom: 0.5rem;
}

.project-body h3 {
  font-size: 1.05rem;
  margin-bottom: 0.6rem;
}

.project-body p { font-size: 0.95rem; }

.project-link {
  display: inline-block;
  margin-top: 1rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent-mid);
  text-decoration: none;
  border-bottom: 1px solid var(--accent-mid);
  padding-bottom: 1px;
  transition: opacity 0.15s;
}

.project-link:hover { opacity: 0.6; }

/* ABOUT */
#about {
  padding-top: calc(var(--gap-l) + 1rem);
  padding-bottom: calc(var(--gap-l) + 1rem);
}

#about .section-label {
  margin-bottom: 1.5rem;
}

.about-grid {
  display: grid;
  gap: 1.5rem;
  align-items: start;
}

.about-primary,
.about-secondary {
  background: var(--white);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 1.75rem 1.75rem 1.9rem;
}

.about-primary h2 {
  margin-bottom: 1rem;
}

.about-primary p,
.about-secondary p {
  max-width: 32ch;
}

.about-secondary {
  border-left: 3px solid var(--accent-mid);
}

@media (min-width: 640px) {
  .about-grid { grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr); }
  .projects-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 767px) {
  nav {
    flex-wrap: wrap;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-menu {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--rule);
  }

  nav.is-open .nav-menu {
    display: flex;
  }

  .nav-links {
    width: 100%;
    flex-direction: column;
    gap: 0.9rem;
  }
}

.pull-quote {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.5vw, 1.55rem);
  font-weight: 300;
  font-style: italic;
  color: var(--accent);
  line-height: 1.4;
  border-left: 2px solid var(--accent-mid);
  padding-left: 1.25rem;
  margin: var(--gap-m) 0;
}

/* HIRE */
.hire-inner {
  max-width: 580px;
}

.contact-form {
  margin-top: var(--gap-m);
  display: grid;
  gap: 1rem;
}

.form-status {
  margin-top: var(--gap-m);
  padding: 0.9rem 1rem;
  border: 1px solid #b9d7c4;
  border-left: 3px solid var(--accent-mid);
  border-radius: 4px;
  background: #f4fbf6;
  color: var(--accent);
}

.form-status.is-error {
  border-color: #e3c8c1;
  border-left-color: #b15a47;
  background: #fff5f3;
  color: #7f392c;
}

.form-group { display: grid; gap: 0.4rem; }

.form-honeypot {
  position: absolute;
  left: -9999px;
}

label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-light);
}

input, textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--rule);
  border-radius: 3px;
  background: var(--white);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--ink);
  transition: border-color 0.15s;
  -webkit-appearance: none;
}

input:focus, textarea:focus {
  outline: none;
  border-color: var(--accent-mid);
}

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

.form-note {
  font-size: 0.85rem;
  color: var(--ink-light);
  margin-top: 0.25rem;
}

/* FOOTER */
footer {
  border-top: 1px solid var(--rule);
  padding: var(--gap-m);
  text-align: center;
}

footer p {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-light);
  margin: 0;
}

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