/* ============================================
   EUAN McPHIE — GIS PORTFOLIO
   style.css — shared across all pages
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:wght@400;600;700&family=DM+Mono:wght@300;400&family=DM+Sans:wght@300;400;500&display=swap');

:root {
  --bg:         #7bc47f;
  --bg-dark:    #5aa35e;
  --bg-deeper:  #3d8a42;
  --black:      #0a0a0a;
  --black-soft: #2a2a2a;
  --white:      #ffffff;
  --accent:     #000000;
  --border:     rgba(0,0,0,0.15);
  --border-strong: rgba(0,0,0,0.3);
  --radius:     8px;
  --radius-lg:  12px;
  --sidebar-w:  160px;
}

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

html { scroll-behavior: smooth; }

body {
  background-color: var(--bg);
  color: var(--black);
  font-family: 'DM Sans', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ── SIDEBAR PANELS ── */
.sidebar-left,
.sidebar-right {
  position: fixed;
  top: 0;
  bottom: 0;
  width: var(--sidebar-w);
  overflow: hidden;
  z-index: 0;
  pointer-events: none;
}
.sidebar-left  { left: 0; }
.sidebar-right { right: 0; }

.sidebar-left img,
.sidebar-right img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.55;
  filter: saturate(1.1) brightness(0.85);
}

/* Gradient fade toward center so content edge is clean */
.sidebar-left::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, transparent 40%, var(--bg) 100%);
}
.sidebar-right::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to left, transparent 40%, var(--bg) 100%);
}

/* ── NAV ── */
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 48px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 100;
  margin: 0 var(--sidebar-w);
}

.nav-logo {
  font-family: 'DM Mono', monospace;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--black);
}

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-family: 'DM Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--black-soft);
  transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.active { color: var(--black); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--black);
}

/* ── PAGE LAYOUT ── */
main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 48px;
  position: relative;
  z-index: 1;
  /* Push content away from sidebars */
  margin-left: var(--sidebar-w);
  margin-right: var(--sidebar-w);
  max-width: calc(100% - 2 * var(--sidebar-w));
}

section {
  padding: 64px 0;
}

/* Only add dividers between sections explicitly */
section + section {
  border-top: 1px solid var(--border);
}

/* ── SECTION LABELS ── */
.section-label {
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--black-soft);
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 28px;
}

.section-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* ── TYPOGRAPHY ── */
h1 {
  font-family: 'Fraunces', serif;
  font-size: clamp(36px, 5vw, 58px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--black);
}

h2 {
  font-family: 'Fraunces', serif;
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}

h3 {
  font-family: 'DM Sans', sans-serif;
  font-size: 16px;
  font-weight: 500;
  margin-bottom: 8px;
}

p {
  font-size: 15px;
  color: var(--black-soft);
  line-height: 1.8;
  max-width: 600px;
}

/* ── BUTTONS ── */
.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-family: 'DM Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.1s;
  border: none;
}
.btn:hover { opacity: 0.82; }
.btn:active { transform: scale(0.98); }
.btn-dark { background: var(--black); color: var(--bg); }
.btn-outline {
  background: transparent;
  color: var(--black);
  border: 1px solid var(--border-strong);
}

/* ── PROJECT CARDS ── */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}

.card {
  background: var(--bg-dark);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.2s, border-color 0.2s;
  cursor: pointer;
}
.card:hover {
  transform: translateY(-3px);
  border-color: var(--border-strong);
}

.card-img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  background: var(--bg-deeper);
  display: block;
}

.card-body { padding: 18px; }

.card-tag {
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--black-soft);
  background: rgba(0,0,0,0.1);
  padding: 4px 10px;
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 10px;
}

.card-title {
  font-size: 15px;
  font-weight: 500;
  color: var(--black);
  margin-bottom: 6px;
  line-height: 1.4;
}

.card-desc {
  font-size: 13px;
  color: var(--black-soft);
  line-height: 1.6;
  max-width: none;
}

/* ── FILTER PILLS (portfolio page) ── */
.pill {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  padding: 6px 14px;
  border-radius: 20px;
  border: 1px solid var(--black);
  cursor: pointer;
  background: var(--white);
  color: var(--black);
  transition: background 0.15s, color 0.15s;
}
.pill:hover,
.pill.active {
  background: var(--black);
  color: var(--white);
  border-color: var(--black);
}

/* Card skill tags (portfolio page bubbles) */
.card-skill {
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  padding: 3px 9px;
  border-radius: 12px;
  border: 1px solid var(--black);
  background: var(--white);
  color: var(--black);
  display: inline-block;
  margin: 3px 3px 0 0;
}

/* ── FOOTER ── */
footer {
  border-top: 1px solid var(--border);
  padding: 28px 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 0 var(--sidebar-w);
  position: relative;
  z-index: 1;
}

.footer-left {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  color: var(--black-soft);
  letter-spacing: 0.06em;
}

.footer-links {
  display: flex;
  gap: 24px;
  list-style: none;
}
.footer-links a {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  color: var(--black-soft);
  letter-spacing: 0.06em;
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--black); }

/* ── RESPONSIVE ── */
@media (max-width: 1100px) {
  :root { --sidebar-w: 100px; }
}

@media (max-width: 860px) {
  :root { --sidebar-w: 0px; }
  .sidebar-left, .sidebar-right { display: none; }
  nav { margin: 0; }
  main { margin: 0 auto; max-width: 100%; padding: 0 24px; }
  footer { margin: 0; padding: 24px; flex-direction: column; gap: 16px; text-align: center; }
}

@media (max-width: 768px) {
  nav { padding: 16px 24px; position: relative; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: var(--bg);
    flex-direction: column;
    padding: 16px 24px;
    gap: 16px;
    border-bottom: 1px solid var(--border);
    z-index: 200;
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }
  section { padding: 48px 0; }
  .cards-grid { grid-template-columns: 1fr; }
}