/* Ava Weisheit — site stylesheet
   Palette: navy (professional/primary) + green (accent/personal) */

:root {
  --navy-900: #06192b;
  --navy-800: #0a2a43;
  --navy-700: #123a5c;
  --green-700: #146b45;
  --green-600: #1f9d63;
  --green-500: #2fbf7a;
  --green-50: #e9f7f0;
  --bg: #f7f8f6;
  --surface: #ffffff;
  --text: #16232e;
  --text-secondary: #55636c;
  --text-muted: #8a959c;
  --border: #e3e6e1;
  --radius: 10px;
  --max-width: 980px;
  --shadow: 0 1px 3px rgba(10, 42, 67, 0.06), 0 8px 24px rgba(10, 42, 67, 0.05);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--green-700); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; display: block; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--navy-900);
  margin: 0 0 0.5em;
}

h2 { font-size: 1.9rem; }
h3 { font-size: 1.3rem; }

p { margin: 0 0 1em; color: var(--text); }

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--green-700);
  margin-bottom: 0.5em;
  display: block;
}

/* Nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--navy-900);
  border-bottom: 1px solid var(--navy-700);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.nav-logo {
  color: #fff;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}
.nav-logo:hover { text-decoration: none; opacity: 0.9; }

.nav-links {
  list-style: none;
  display: flex;
  gap: 28px;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: #cfd9e0;
  font-size: 0.92rem;
  font-weight: 500;
}
.nav-links a:hover { color: #fff; text-decoration: none; }

.nav-toggle { display: none; }

@media (max-width: 700px) {
  .nav-links { display: none; }
}

/* Hero */
.hero {
  background: linear-gradient(160deg, var(--navy-900) 0%, var(--navy-800) 100%);
  color: #fff;
  padding: 72px 24px 88px;
}

.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 40px;
}

.hero-avatar {
  width: 128px;
  height: 128px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--green-500);
  flex-shrink: 0;
}

.hero h1 {
  color: #fff;
  font-size: 2.4rem;
  margin-bottom: 6px;
}

.hero .tagline {
  color: #b9c6cf;
  font-size: 1.08rem;
  max-width: 520px;
  margin-bottom: 20px;
}

.button-row { display: flex; gap: 12px; flex-wrap: wrap; }

.button {
  display: inline-block;
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.92rem;
  border: 1.5px solid transparent;
}

.button.primary {
  background: var(--green-600);
  color: #06192b;
}
.button.primary:hover { background: var(--green-500); text-decoration: none; }

.button.ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.35);
}
.button.ghost:hover { border-color: #fff; text-decoration: none; }

@media (max-width: 640px) {
  .hero-inner { flex-direction: column; text-align: center; gap: 20px; }
  .button-row { justify-content: center; }
}

/* Sections */
section.block {
  padding: 64px 24px;
}
section.block.alt { background: var(--surface); }

.section-head { max-width: 640px; margin-bottom: 32px; }

/* Skills */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
}

.skill-pill {
  background: var(--green-50);
  color: var(--green-700);
  border: 1px solid #d3ecdf;
  border-radius: var(--radius);
  padding: 14px 16px;
  font-weight: 600;
  font-size: 0.92rem;
}

/* Cards (projects / articles) */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 22px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 4px 8px rgba(10,42,67,0.08), 0 14px 30px rgba(10,42,67,0.08);
}

.card img {
  width: 100%;
  height: 160px;
  object-fit: cover;
}

.card-body { padding: 18px 20px 20px; flex: 1; display: flex; flex-direction: column; }
.card-body h4 { margin-bottom: 6px; font-size: 1.05rem; }
.card-meta { font-size: 0.78rem; color: var(--text-muted); margin-bottom: 8px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; }
.card-body p { color: var(--text-secondary); font-size: 0.92rem; flex: 1; }
.card-link { margin-top: 10px; font-weight: 600; font-size: 0.9rem; }

/* Contact */
form { max-width: 480px; }
label { display: block; font-weight: 600; font-size: 0.9rem; margin-bottom: 6px; margin-top: 16px; }
input[type="email"], input[type="text"], textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.95rem;
  background: var(--surface);
  color: var(--text);
}
textarea { min-height: 120px; resize: vertical; }
input:focus, textarea:focus { outline: 2px solid var(--green-500); outline-offset: 1px; }

form button {
  margin-top: 18px;
  background: var(--green-600);
  color: #06192b;
  border: none;
  padding: 10px 22px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
}
form button:hover { background: var(--green-500); }

.contact-links { margin-top: 20px; display: flex; gap: 16px; }

/* Footer */
.site-footer {
  background: var(--navy-900);
  color: #9fb0ba;
  padding: 28px 24px;
  font-size: 0.85rem;
}
.site-footer a { color: #cfe9db; }

/* Article / detail pages */
.back-link { display: inline-block; margin: 24px 0; font-weight: 600; }
.article-hero {
  padding: 56px 24px 20px;
  max-width: 760px;
  margin: 0 auto;
}
.article-meta { color: var(--text-muted); font-size: 0.85rem; margin-bottom: 6px; }
.article-body {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 24px 64px;
}
.article-body h3 { margin-top: 1.6em; }
.article-body img { border-radius: 10px; margin: 20px 0; }
.article-body ul { padding-left: 1.2em; }
.tag {
  display: inline-block;
  background: var(--green-50);
  color: var(--green-700);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 20px;
  margin-right: 6px;
}

/* Code blocks (methodology snippets) */
.code-block {
  background: var(--navy-900);
  border-radius: 10px;
  padding: 18px 20px;
  overflow-x: auto;
  margin: 16px 0 24px;
}
.code-block pre { margin: 0; }
.code-block code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.82rem;
  line-height: 1.6;
  color: #d7e4dd;
  white-space: pre;
}
.code-block .cm { color: #7f97a3; }
.code-caption {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin: -14px 0 24px;
}