/* ============================================
   PHILLIP FONSECA — Biophilic Minimalism
   Permanent Dark Mode Edition
   ============================================ */

/* ─── Google Fonts ─── */
@import url("https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;1,300;1,400&family=DM+Sans:wght@300;400;500&family=DM+Mono:wght@400&display=swap");

/* ─── CSS Variables ─── */
:root {
  /* Permanent Dark Mode — The "Grounded Focus" Palette */
  --bg-primary: #141210;
  --bg-surface: #1e1b17;
  --bg-deep: #252018;
  --accent: #7a9e7e;
  --accent-light: #a8c5ab;
  --ink: #e8e0d0;
  --bark: #d4c5b0;
  --clay: #6b5a45;
  --muted: #6b6560;

  /* Typography & Animation Foundations */
  --font-serif: "Cormorant Garamond", Georgia, serif;
  --font-sans: "DM Sans", system-ui, sans-serif;
  --font-mono: "DM Mono", monospace;

  --transition-fast: 200ms ease;
  --transition-medium: 300ms ease;
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ─── Reduced Motion Support ─── */
@media (prefers-reduced-motion: reduce) {
  html:focus-within {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ─── Base Reset ─── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.7;
  color: var(--ink);
  background: var(--bg-primary);
  cursor: none;
  min-height: 100vh;
  overflow-x: hidden;
}

*,
a,
button,
[role="button"],
.filter-tab {
  cursor: none !important;
}

/* ─── Grain Overlay ─── */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 256px 256px;
}

/* ─── Custom Cursor ─── */
.cursor {
  position: fixed;
  top: 0;
  left: 0;
  width: 12px;
  height: 12px;
  background: var(--accent);
  border-radius: 50%;
  pointer-events: none;
  z-index: 10000;
  transform: translate(-50%, -50%);
  transition: width 200ms var(--ease-out-expo),
    height 200ms var(--ease-out-expo), background 200ms var(--ease-out-expo),
    opacity 200ms var(--ease-out-expo);
  will-change: transform;
}

.cursor--hover {
  width: 48px;
  height: 48px;
  background: var(--accent-light);
  opacity: 0.4;
  border: 1px solid var(--clay);
}

/* ─── Typography ─── */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 400;
  line-height: 1.2;
  color: var(--bark);
}

a {
  color: inherit;
  text-decoration: none;
}

/* ─── Layout Container ─── */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ─── Navigation ─── */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  background: transparent;
  transition: background var(--transition-fast),
    backdrop-filter var(--transition-fast);
}

.site-nav.scrolled {
  background: var(--bg-surface);
  backdrop-filter: blur(10px);
}

.nav-logo {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 400;
  color: var(--bark);
}

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

.nav-links a {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 400;
  color: var(--ink);
  position: relative;
  transition: color var(--transition-fast);
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--clay);
  transition: width var(--transition-fast);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

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

.nav-links a.active::before {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  background: var(--accent);
  border-radius: 50%;
}

.nav-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--ink);
  transition: background var(--transition-fast);
}

/* ─── Mobile Drawer ─── */
.mobile-drawer {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: var(--bg-surface);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transform: translateX(100%);
  transition: transform var(--transition-medium);
}

.mobile-drawer.open {
  transform: translateX(0);
}

.mobile-drawer ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  text-align: center;
}

.mobile-drawer a {
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--bark);
}

.drawer-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: none;
  border: none;
  font-size: 24px;
  color: var(--ink);
  cursor: pointer;
}

/* ─── Buttons ─── */
.btn-primary {
  display: inline-block;
  background: linear-gradient(160deg, #8aab8e 0%, #6a9170 50%, #4f7a56 100%);
  color: #f0ebe2;
  border-radius: 40px;
  padding: 1rem 2.5rem;
  min-width: 140px;
  text-align: center;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 500;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.15),
    0 2px 12px rgba(74, 110, 74, 0.25);
  transition: transform var(--transition-fast),
    box-shadow var(--transition-fast);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.15),
    0 6px 20px rgba(74, 110, 74, 0.35);
}

.btn-secondary {
  display: inline-block;
  background: transparent;
  border: 1px solid var(--clay);
  color: var(--bark);
  border-radius: 40px;
  padding: 1rem 2.5rem;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 500;
  transition: border-color var(--transition-fast), color var(--transition-fast),
    transform var(--transition-fast);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

/* ─── Fade Up Animation ─── */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 600ms var(--ease-out-expo),
    transform 600ms var(--ease-out-expo);
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-up:nth-child(1) {
  transition-delay: 0ms;
}
.fade-up:nth-child(2) {
  transition-delay: 80ms;
}
.fade-up:nth-child(3) {
  transition-delay: 160ms;
}
.fade-up:nth-child(4) {
  transition-delay: 240ms;
}
.fade-up:nth-child(5) {
  transition-delay: 320ms;
}

/* ─── Hero Section ─── */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 2rem;
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(40px);
  animation: blob 12s infinite ease-in-out, breathe 8s infinite ease-in-out;
  pointer-events: none;
}

.blob-1 {
  width: 500px;
  height: 500px;
  background: var(--accent-light);
  opacity: 0.4;
  top: -100px;
  left: -100px;
}

.blob-2 {
  width: 400px;
  height: 400px;
  background: var(--clay);
  opacity: 0.3;
  top: 20%;
  right: -100px;
  animation-delay: -4s;
}

.blob-3 {
  width: 300px;
  height: 300px;
  background: var(--bg-deep);
  opacity: 0.6;
  bottom: 10%;
  left: 30%;
  animation-delay: -8s;
}

@keyframes blob {
  0%,
  100% {
    border-radius: 50% 50% 30% 70% / 60% 40% 60% 40%;
  }
  33% {
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
  }
  66% {
    border-radius: 70% 30% 50% 50% / 40% 60% 40% 60%;
  }
}

@keyframes breathe {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.03);
  }
}

@keyframes pulse {
  0%,
  100% {
    opacity: 0.3;
  }
  50% {
    opacity: 1;
  }
}

.hero-content {
  text-align: center;
  z-index: 1;
  position: relative;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(64px, 10vw, 120px);
  font-weight: 300;
  color: var(--bark);
  line-height: 1;
}

.hero-subhead {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--muted);
  margin-top: 1rem;
}

.hero-tagline {
  font-family: var(--font-serif);
  font-size: 24px;
  font-style: italic;
  color: var(--bark);
  margin-top: 0.5rem;
}

.hero-ctas {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 2rem;
}

.scroll-indicator {
  position: absolute;
  bottom: 3rem;
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 60px;
  background: var(--clay);
  animation: pulse 2s infinite;
}

/* ─── About Section ─── */
.about {
  padding: 8rem 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
  position: relative;
}

.about::before {
  content: "";
  position: absolute;
  top: 4rem;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(
    circle,
    rgba(122, 158, 126, 0.06) 0%,
    transparent 70%
  );
  pointer-events: none;
  border-radius: 50%;
}

.about-text {
  max-width: 540px;
  position: relative;
  z-index: 1;
}

.about-heading {
  font-family: var(--font-serif);
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 300;
  color: var(--bark);
  letter-spacing: -0.01em;
  line-height: 1.1;
  margin-top: 0.5rem;
  margin-bottom: 1.5rem;
}

.about-bio {
  font-family: var(--font-sans);
  font-size: 18px;
  color: var(--ink);
  line-height: 1.8;
  margin-top: 1.5rem;
}

.about-photo {
  background: radial-gradient(
    ellipse at 40% 35%,
    rgba(122, 158, 126, 0.08) 0%,
    var(--bg-deep) 60%
  );
  border-radius: 60% 40% 55% 45% / 50% 60% 40% 50%;
  aspect-ratio: 4/5;
  width: 100%;
  max-width: 400px;
  margin-left: auto;
  border: 1px solid rgba(122, 158, 126, 0.12);
}

/* ─── Principles ─── */
.principles-label {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  margin-top: 3rem;
  margin-bottom: 1.25rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(196, 168, 130, 0.15);
}

.principles {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 1rem;
}

.principle-card {
  perspective: 1000px;
  cursor: pointer;
  min-height: 130px;
}

.principle-card-inner {
  position: relative;
  width: 100%;
  height: 130px;
  transform-style: preserve-3d;
  transition: transform 400ms ease-out;
}

.principle-card.flipped .principle-card-inner {
  transform: rotateY(180deg);
}

.principle-front,
.principle-back {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  background: var(--bg-deep);
  border-radius: 20px;
  border-left: 3px solid var(--accent);
  padding: 1.5rem 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: 0 2px 16px rgba(60, 40, 20, 0.12);
}

.principle-front {
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--bark);
  justify-content: space-between;
}

.principle-front::before {
  content: attr(data-number);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.1em;
  opacity: 0.7;
  align-self: flex-start;
}

.principle-back {
  transform: rotateY(180deg);
  font-family: var(--font-sans);
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
  justify-content: center;
}

/* ─── Currently Section ─── */
.currently {
  padding: 6rem 0;
  border-top: 1px solid rgba(196, 168, 130, 0.2);
}

.currently-list {
  list-style: none;
  margin-top: 2rem;
}

.currently-list li {
  padding-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.currently-cat {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.currently-val {
  font-family: var(--font-sans);
  font-size: 16px;
  color: var(--ink);
}

/* ─── Timeline Section ─── */
.timeline {
  padding: 6rem 0;
  border-top: 1px solid rgba(196, 168, 130, 0.2);
}

.timeline h2 {
  font-family: var(--font-sans);
  font-size: 28px;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 3rem;
}

.timeline-track {
  position: relative;
  padding-left: 2rem;
}

.timeline-track::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--clay);
}

.timeline-item {
  position: relative;
  padding-bottom: 3rem;
}

.timeline-content {
  padding-left: 1rem;
  flex: 1;
}

.timeline-dot {
  position: absolute;
  left: -2rem;
  top: 0.5rem;
  width: 10px;
  height: 10px;
  background: var(--accent);
  border-radius: 50%;
  transform: translateX(-4.5px);
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
}

.timeline-role {
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 500;
  color: var(--bark);
  margin-top: 0.25rem;
}

.timeline-org {
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--accent);
  display: block;
  margin-top: 0.25rem;
}

.timeline-desc {
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--muted);
  margin-top: 0.5rem;
}

/* ─── Contact Section ─── */
.contact-section {
  padding: 8rem 0 6rem;
  border-top: 1px solid rgba(196, 168, 130, 0.3);
}

.contact-inner {
  max-width: 600px;
  margin: 0 auto;
}

.contact-heading {
  font-family: var(--font-serif);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 300;
  color: var(--bark);
  line-height: 1.2;
  margin-top: 1rem;
  margin-bottom: 0.5rem;
}

.contact-sub {
  font-family: var(--font-sans);
  font-size: 18px;
  color: var(--muted);
  margin-bottom: 3rem;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.contact-field label {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.contact-field input,
.contact-field textarea {
  background: var(--bg-surface);
  border: 1px solid rgba(196, 168, 130, 0.4);
  border-radius: 12px;
  padding: 0.85rem 1.1rem;
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--ink);
  transition: border-color var(--transition-fast),
    box-shadow var(--transition-fast);
  resize: vertical;
}

.contact-field input:focus,
.contact-field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(74, 94, 74, 0.12);
}

.contact-submit {
  align-self: flex-start;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 40px;
  padding: 0.9rem 2.5rem;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition-fast),
    transform var(--transition-fast);
}

.contact-submit:hover {
  background: var(--accent-light);
  transform: translateY(-2px);
}

/* ─── Footer ─── */
.site-footer {
  padding: 3rem 0 2rem;
  border-top: 1px solid rgba(196, 168, 130, 0.2);
}

.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.footer-copy {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  margin: 0;
}

.footer-links {
  display: flex;
  gap: 2rem;
}

.footer-links a {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.footer-bottom a svg {
  display: block;
  transition: opacity var(--transition-fast);
}

.footer-bottom a:hover svg path {
  fill: var(--accent);
}

/* ─── Page Hero (sub-pages) ─── */
.page-hero {
  min-height: 50vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 8rem 2rem 4rem;
  background: var(--bg-primary);
}

.page-hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(48px, 8vw, 96px);
  font-weight: 300;
  color: var(--bark);
}

.page-hero p {
  font-family: var(--font-sans);
  font-size: 18px;
  color: var(--muted);
  margin-top: 1rem;
  max-width: 500px;
}

/* ─── Projects Grid ─── */
.projects-grid {
  padding: 4rem 0 8rem;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.project-card {
  background: var(--bg-surface);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 2px 20px rgba(60, 40, 20, 0.06);
  transition: transform var(--transition-medium),
    box-shadow var(--transition-medium);
}

.project-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 40px rgba(60, 40, 20, 0.12);
}

.project-cover {
  aspect-ratio: 16/9;
  background: var(--bg-deep);
  border-radius: 16px 16px 0 0;
}

.project-info {
  padding: 1.5rem;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.project-tags span {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.project-title {
  font-family: var(--font-serif);
  font-size: 28px;
  color: var(--bark);
  margin-bottom: 0.75rem;
}

.project-problem {
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--muted);
  margin-bottom: 1rem;
}

.project-link {
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--accent);
  position: relative;
}

.project-link::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width var(--transition-fast);
}

.project-link:hover::after {
  width: 100%;
}

/* ─── Case Study ─── */
.case-study-back {
  position: sticky;
  top: 80px;
  padding: 1rem 0;
  z-index: 10;
}

.case-study-back a {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  transition: color var(--transition-fast);
}

.case-study-back a:hover {
  color: var(--accent);
}

.case-study {
  max-width: 680px;
  margin: 0 auto;
  padding: 2rem 0 6rem;
}

.case-study-header {
  margin-bottom: 4rem;
}

.case-study-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.case-study-tags span {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.case-study-header h1 {
  font-family: var(--font-serif);
  font-size: clamp(48px, 8vw, 96px);
  font-weight: 300;
  color: var(--bark);
  margin-bottom: 1rem;
}

.case-study-dek {
  font-family: var(--font-sans);
  font-size: 20px;
  color: var(--muted);
  font-style: italic;
}

.case-study-section {
  margin-bottom: 3rem;
}

.case-study-section h2 {
  font-family: var(--font-sans);
  font-size: 24px;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 1rem;
}

.case-study-section p {
  font-family: var(--font-sans);
  font-size: 17px;
  color: var(--ink);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.case-study-image {
  margin: 2rem 0;
}

.image-placeholder {
  aspect-ratio: 16/9;
  background: var(--bg-deep);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.image-placeholder span {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ================================================================
   WRITING HUB: NOTES FROM A CURIOUS MIND
   ================================================================ */

/* --- Writing Hero --- */
.writing-hero {
  min-height: 45vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 8rem 1.5rem 4rem;
  background: var(--bg-primary);
}

.writing-hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(48px, 8vw, 96px);
  font-weight: 300;
  color: var(--bark);
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.writing-hero-text p {
  font-family: var(--font-sans);
  font-size: 18px;
  color: var(--muted);
  margin: 1.5rem auto 0;
  max-width: 480px;
  line-height: 1.6;
}

/* --- Filter Tabs --- */
.filter-tabs {
  display: flex;
  gap: 2.5rem;
  flex-wrap: wrap;
  padding: 2.5rem 0;
  border-bottom: 1px solid rgba(196, 168, 130, 0.2);
  margin-bottom: 2rem;
}

.filter-tab {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  background: none;
  border: none;
  padding: 0 0 0.5rem;
  cursor: pointer;
  position: relative;
  transition: color var(--transition-fast);
}

.filter-tab::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 300ms var(--ease-out-expo);
}

.filter-tab:hover,
.filter-tab.active {
  color: var(--accent);
}

.filter-tab.active::after,
.filter-tab:hover::after {
  width: 100%;
}

/* --- Article List --- */
.article-list {
  padding: 2rem 0 8rem;
}

.article-item {
  padding: 3.5rem 0;
  border-bottom: 1px solid rgba(107, 90, 69, 0.15);
  transition: transform 400ms var(--ease-out-expo), opacity 400ms ease;
}

.article-item:hover {
  transform: translateX(12px);
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.dot-separator {
  color: var(--accent);
  opacity: 0.6;
}

.article-category {
  color: var(--accent);
  border: 1px solid rgba(122, 158, 126, 0.3);
  padding: 2px 8px;
  border-radius: 4px;
}

.article-title a {
  font-family: var(--font-serif);
  font-size: clamp(26px, 4vw, 34px);
  color: var(--bark);
  transition: color var(--transition-fast);
}

.article-item:hover .article-title a {
  color: var(--accent);
}

.article-desc {
  font-family: var(--font-sans);
  font-size: 16px;
  color: var(--muted);
  margin: 1rem 0;
  max-width: 620px;
  line-height: 1.7;
}

/* --- Individual Article --- */
.article-page {
  max-width: 680px;
  margin: 0 auto;
  padding: 4rem 1.5rem 8rem;
}

.article-back {
  position: sticky;
  top: 100px;
  padding: 1rem 0;
  z-index: 10;
  margin-bottom: 2rem;
}

.article-back a {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  transition: color var(--transition-fast);
}

.article-back a:hover {
  color: var(--accent);
}

.article-header {
  margin-bottom: 4rem;
}

.article-header .article-title {
  font-size: clamp(40px, 7vw, 72px);
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.article-dek {
  font-family: var(--font-sans);
  font-size: 20px;
  color: var(--muted);
  font-style: italic;
  line-height: 1.6;
}

.article-body p {
  font-size: 18px;
  line-height: 1.8;
  margin-bottom: 2rem;
  color: var(--ink);
}

.pull-quote {
  font-family: var(--font-serif);
  font-size: 26px;
  font-style: italic;
  color: var(--bark);
  border-left: 3px solid var(--accent);
  padding: 1rem 0 1rem 2rem;
  margin: 4rem 0;
  background: var(--bg-surface);
  border-radius: 0 8px 8px 0;
}

.related-reading {
  padding-top: 3rem;
  border-top: 1px solid rgba(196, 168, 130, 0.2);
  margin-top: 5rem;
}

.related-reading ul {
  list-style: none;
  margin-top: 1.5rem;
}

.related-reading li {
  margin-bottom: 1.25rem;
}

.related-reading a {
  font-family: var(--font-sans);
  font-size: 16px;
  color: var(--accent);
  transition: color var(--transition-fast);
}

.related-reading a:hover {
  color: var(--accent-light);
}

/* ================================================================
   NOW PAGE — Styles live in now.html <style> block.
   Only global resets and shared tokens here to prevent cascade
   conflicts with the page-specific inline styles.
   ================================================================ */

 .now-title {
  font-size: clamp(64px, 18vw, 88px);
} 

/* ─── 404 Page ─── */
.not-found {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
}

.not-found-number {
  font-family: var(--font-serif);
  font-size: clamp(96px, 20vw, 200px);
  font-weight: 300;
  color: var(--clay);
  line-height: 1;
}

.not-found-body {
  font-family: var(--font-sans);
  font-size: 18px;
  color: var(--muted);
  margin: 1rem 0 2rem;
}

.not-found-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 4rem;
}

.not-found-links a:not(.btn-primary) {
  font-family: var(--font-sans);
  color: var(--accent);
  position: relative;
}

.not-found-links a:not(.btn-primary)::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width var(--transition-fast);
}

.not-found-links a:not(.btn-primary):hover::after {
  width: 100%;
}

.not-found-currently {
  margin-top: 2rem;
}

.not-found-currently p {
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--muted);
  margin-top: 0.5rem;
}

/* ─── Responsive ─── */
@media (max-width: 1024px) {
  .about {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .about-photo {
    margin: 0 auto;
    max-width: 300px;
  }

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

@media (max-width: 900px) {
  /* .now-items grid handled in now.html */
}

@media (max-width: 768px) {
  .article-item:hover {
  transform: none;
}
  .nav-links {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .hero-title {
    font-size: clamp(48px, 12vw, 80px);
  }

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

  .page-hero h1,
  .writing-hero h1 {
    font-size: clamp(36px, 10vw, 64px);
  }
  
  /* now-header padding handled in now.html responsive styles */
}

@media (max-width: 600px) {
  /* now-items and now-item responsive handled in now.html */

  .filter-tabs {
    gap: 1rem;
  }

  .hero-ctas {
    flex-direction: column;
    align-items: center;
  }

  .btn-primary,
  .btn-secondary {
    width: 100%;
    max-width: 280px;
    text-align: center;
  }

  .footer-top {
    flex-direction: column;
    text-align: center;
  }

  .footer-bottom {
    justify-content: center;
  }
  
  /* now-item mobile handled in now.html */
}

/* ─── Focus Styles ─── */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ─── Selection ─── */
::selection {
  background: var(--accent);

  color: #fff;
}