/* ============================================================
   CECELIA ALFONSO-STOKES — ACADEMIC WEBSITE
   style.css  |  Version 1.0
   Font pairing: Cormorant Garamond (headings) + EB Garamond (body) + Jost (UI)
   Palette: warm cream / charcoal / muted sage / dusty rose-tan
   ============================================================ */

/* --- Google Fonts Import --- */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;1,300;1,400;1,500&family=EB+Garamond:ital,wght@0,400;0,500;1,400;1,500&family=Jost:wght@300;400;500&display=swap');

/* --- CSS Custom Properties --- */
:root {
  /* Colors */
  --color-bg:          #f9f6f0;
  --color-bg-alt:      #f2ede5;
  --color-bg-white:    #ffffff;
  --color-text:        #28231e;
  --color-text-mid:    #6b5d52;
  --color-text-light:  #9c8c7e;
  --color-accent:      #4d6b58;       /* muted forest sage — primary accent */
  --color-accent-dark: #3a5243;       /* darker sage for hover states */
  --color-accent-pale: #d4e0d7;       /* very light sage for backgrounds */
  --color-rule:        #ddd5c8;       /* warm light rule lines */
  --color-rule-mid:    #c8bdb0;

  /* Typography */
  --font-display:  'Cormorant Garamond', Georgia, serif;
  --font-body:     'EB Garamond', Georgia, serif;
  --font-ui:       'Jost', system-ui, sans-serif;

  /* Spacing scale */
  --space-xs:   0.5rem;
  --space-sm:   1rem;
  --space-md:   1.75rem;
  --space-lg:   3rem;
  --space-xl:   5rem;
  --space-2xl:  8rem;

  /* Layout */
  --max-width:        1100px;
  --content-width:    720px;
  --nav-height:       72px;

  /* Transitions */
  --transition: 0.2s ease;
}

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

html {
  font-size: 18px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
  font-weight: 400;
  min-height: 100vh;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-accent-dark);
}

ul, ol {
  list-style: none;
}

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

h1 { font-size: clamp(2.4rem, 5vw, 3.6rem); letter-spacing: -0.01em; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.4rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.6rem); font-weight: 500; }
h4 { font-size: 1.1rem; font-family: var(--font-ui); font-weight: 500; letter-spacing: 0.04em; text-transform: uppercase; }
h5 { font-size: 0.9rem; font-family: var(--font-ui); font-weight: 400; letter-spacing: 0.06em; text-transform: uppercase; color: var(--color-text-mid); }

p {
  margin-bottom: 1.25rem;
}

p:last-child {
  margin-bottom: 0;
}

em, i {
  font-style: italic;
}

strong {
  font-weight: 500;
}

blockquote {
  border-left: 3px solid var(--color-accent);
  padding-left: 1.5rem;
  margin: 2rem 0;
  color: var(--color-text-mid);
  font-style: italic;
  font-size: 1.1rem;
}

.eyebrow {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-light);
  display: block;
  margin-bottom: 0.6rem;
}

.lead {
  font-size: 1.15rem;
  line-height: 1.8;
  color: var(--color-text-mid);
}

/* --- Layout Utilities --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 2rem;
  padding-right: 2rem;
}

.content-width {
  max-width: var(--content-width);
}

.section {
  padding-top: var(--space-xl);
  padding-bottom: var(--space-xl);
}

.section--alt {
  background-color: var(--color-bg-alt);
}

.section--white {
  background-color: var(--color-bg-white);
}

.rule {
  border: none;
  border-top: 1px solid var(--color-rule);
  margin: var(--space-lg) 0;
}

.rule--short {
  width: 48px;
  border-top: 2px solid var(--color-accent);
  margin: var(--space-md) 0;
}

/* --- Navigation --- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-rule);
  height: var(--nav-height);
  display: flex;
  align-items: center;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--color-text);
  letter-spacing: 0.01em;
  white-space: nowrap;
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-links a {
  font-family: var(--font-ui);
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0.05em;
  color: var(--color-text-mid);
  padding: 0.4rem 0.65rem;
  border-radius: 3px;
  transition: color var(--transition), background-color var(--transition);
}

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

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 200;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 1.5px;
  background-color: var(--color-text);
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-ui);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  padding: 0.65rem 1.4rem;
  border-radius: 2px;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

.btn--primary {
  background-color: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

.btn--primary:hover {
  background-color: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  color: #fff;
}

.btn--outline {
  background-color: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.btn--outline:hover {
  background-color: var(--color-accent);
  color: #fff;
}

.btn--ghost {
  background-color: transparent;
  color: var(--color-text-mid);
  border-color: var(--color-rule-mid);
}

.btn--ghost:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

/* --- Quick Links Row --- */
.quick-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.quick-link {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.05em;
  color: var(--color-text-mid);
  border: 1px solid var(--color-rule-mid);
  padding: 0.3rem 0.8rem;
  border-radius: 100px;
  transition: all var(--transition);
}

.quick-link:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
  background-color: var(--color-accent-pale);
}

/* --- Hero / Home --- */
.hero {
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--color-rule);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 4rem;
  align-items: start;
}

.hero-name {
  font-size: clamp(2.8rem, 6vw, 4.2rem);
  font-weight: 300;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

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

.hero-title {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-mid);
  margin-bottom: var(--space-md);
}

.hero-bio {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--color-text);
  max-width: 600px;
  margin-bottom: var(--space-md);
}

.hero-photo {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: top center;
  border-radius: 2px;
  filter: grayscale(8%);
}

.hero-photo-placeholder {
  width: 100%;
  aspect-ratio: 3 / 4;
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-rule);
  border-radius: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-light);
  font-family: var(--font-ui);
  font-size: 0.8rem;
  text-align: center;
  padding: 1rem;
}

/* --- Page Header (inner pages) --- */
.page-header {
  padding-top: var(--space-xl);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-rule);
}

.page-header h1 {
  margin-bottom: 0.75rem;
}

.page-header .lead {
  max-width: 600px;
}

/* --- Featured Card (home page) --- */
.featured-card {
  background-color: var(--color-bg-white);
  border: 1px solid var(--color-rule);
  border-left: 4px solid var(--color-accent);
  padding: 2rem 2.25rem;
  border-radius: 0 2px 2px 0;
}

.featured-card h3 {
  margin-bottom: 0.75rem;
}

.featured-card p {
  color: var(--color-text-mid);
  font-size: 0.98rem;
}

/* --- Grid Layouts --- */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

.three-col {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.sidebar-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 4rem;
  align-items: start;
}

.sidebar-layout--reverse {
  grid-template-columns: 280px 1fr;
}

/* --- Cards --- */
.card {
  padding: 1.5rem;
  background-color: var(--color-bg-white);
  border: 1px solid var(--color-rule);
  border-radius: 2px;
  transition: box-shadow var(--transition), border-color var(--transition);
}

.card:hover {
  box-shadow: 0 2px 16px rgba(0,0,0,0.06);
  border-color: var(--color-rule-mid);
}

/* --- Entry List (publications, talks, etc.) --- */
.entry-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.entry {
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--color-rule);
}

.entry:first-child {
  border-top: 1px solid var(--color-rule);
}

.entry-meta {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-text-light);
  margin-bottom: 0.4rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

.entry-meta .tag {
  background-color: var(--color-accent-pale);
  color: var(--color-accent-dark);
  padding: 0.15rem 0.6rem;
  border-radius: 100px;
  font-size: 0.72rem;
}

.entry-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 500;
  margin-bottom: 0.4rem;
  line-height: 1.35;
}

.entry-title em {
  font-style: italic;
}

.entry-subtitle {
  font-size: 0.92rem;
  color: var(--color-text-mid);
  margin-bottom: 0.6rem;
}

.entry-desc {
  font-size: 0.95rem;
  color: var(--color-text-mid);
  line-height: 1.7;
}

.entry-link {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-top: 0.75rem;
  display: inline-block;
}

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

/* --- Placeholder styling --- */
.placeholder {
  background-color: var(--color-bg-alt);
  border: 1px dashed var(--color-rule-mid);
  border-radius: 2px;
  padding: 1.5rem;
  color: var(--color-text-light);
  font-family: var(--font-ui);
  font-size: 0.85rem;
  font-style: italic;
}

.placeholder::before {
  content: "[ PLACEHOLDER ] ";
  font-weight: 500;
  color: var(--color-accent);
  font-style: normal;
}

/* --- Teaching courses --- */
.course-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.course {
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--color-rule);
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 1.5rem;
  align-items: start;
}

.course:first-child {
  border-top: 1px solid var(--color-rule);
}

.course-number {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent);
  font-weight: 500;
  padding-top: 0.15rem;
}

.course-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 500;
  margin-bottom: 0.3rem;
}

.course-info {
  font-size: 0.9rem;
  color: var(--color-text-mid);
}

/* --- Sidebar box --- */
.sidebar-box {
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-rule);
  padding: 1.5rem;
  border-radius: 2px;
}

.sidebar-box h5 {
  margin-bottom: 1rem;
}

.sidebar-box ul li {
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--color-rule);
  font-size: 0.92rem;
  color: var(--color-text-mid);
}

.sidebar-box ul li:last-child {
  border-bottom: none;
}

.sidebar-box ul li a {
  color: var(--color-text-mid);
}

.sidebar-box ul li a:hover {
  color: var(--color-accent);
}

/* --- Contact --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: start;
}

.contact-item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.contact-label {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-light);
}

.contact-value {
  font-size: 1rem;
  color: var(--color-text);
}

.contact-value a {
  color: var(--color-text);
  border-bottom: 1px solid var(--color-rule-mid);
  transition: border-color var(--transition), color var(--transition);
}

.contact-value a:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

/* --- Home section grid --- */
.home-sections {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  background-color: var(--color-rule);
  border: 1px solid var(--color-rule);
}

.home-section-block {
  background-color: var(--color-bg);
  padding: 2.5rem;
}

.home-section-block h4 {
  margin-bottom: 0.75rem;
  color: var(--color-accent);
}

.home-section-block p {
  font-size: 0.95rem;
  color: var(--color-text-mid);
  margin-bottom: 1rem;
}

/* --- Footer --- */
.site-footer {
  background-color: var(--color-text);
  color: rgba(255,255,255,0.55);
  padding: 3rem 0;
  margin-top: var(--space-2xl);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2rem;
  align-items: center;
}

.footer-name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: rgba(255,255,255,0.85);
  font-weight: 400;
  margin-bottom: 0.4rem;
}

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

.footer-links a {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: rgba(255,255,255,0.55);
  transition: color var(--transition);
}

.footer-links a:hover {
  color: rgba(255,255,255,0.9);
}

.footer-copy {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  color: rgba(255,255,255,0.35);
  margin-top: 0.35rem;
}

/* --- Icon links --- */
.icon-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-ui);
  font-size: 0.82rem;
  font-weight: 400;
  color: var(--color-text-mid);
  transition: color var(--transition);
}

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

.icon-link svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* --- Status badge --- */
.badge {
  display: inline-block;
  font-family: var(--font-ui);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
  border-radius: 100px;
}

.badge--upcoming {
  background-color: #fff3cd;
  color: #7a5f00;
}

.badge--forthcoming {
  background-color: var(--color-accent-pale);
  color: var(--color-accent-dark);
}

.badge--wip {
  background-color: #fde8e4;
  color: #8b3a2f;
}

/* --- CV page --- */
.cv-section {
  margin-bottom: var(--space-lg);
}

.cv-section-title {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  padding-bottom: 0.6rem;
  border-bottom: 1.5px solid var(--color-accent);
  margin-bottom: 1.25rem;
}

.cv-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 1.5rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--color-rule);
}

.cv-row:last-child {
  border-bottom: none;
}

.cv-year {
  font-family: var(--font-ui);
  font-size: 0.82rem;
  color: var(--color-text-light);
  padding-top: 0.15rem;
}

.cv-detail strong {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 500;
  display: block;
  margin-bottom: 0.15rem;
}

.cv-detail span {
  font-size: 0.88rem;
  color: var(--color-text-mid);
  display: block;
}

/* --- Utility --- */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

/* Tablet / medium */
@media (max-width: 900px) {
  html { font-size: 17px; }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .hero-photo,
  .hero-photo-placeholder {
    max-width: 280px;
    aspect-ratio: 1 / 1;
    object-position: top center;
  }

  .two-col {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .three-col {
    grid-template-columns: 1fr 1fr;
  }

  .sidebar-layout {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .sidebar-layout--reverse {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .home-sections {
    grid-template-columns: 1fr;
  }

  .course {
    grid-template-columns: 1fr;
    gap: 0.4rem;
  }

  .footer-inner {
    grid-template-columns: 1fr;
  }
}

/* Mobile */
@media (max-width: 640px) {
  html { font-size: 16px; }

  .container {
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }

  .nav-links {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-bg);
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    padding: 2rem 1.5rem;
    gap: 0.25rem;
    border-top: 1px solid var(--color-rule);
    overflow-y: auto;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    font-size: 1rem;
    padding: 0.75rem 1rem;
    width: 100%;
    border-radius: 4px;
  }

  .nav-toggle {
    display: flex;
  }

  .section {
    padding-top: var(--space-lg);
    padding-bottom: var(--space-lg);
  }

  .hero {
    padding-top: var(--space-lg);
  }

  .hero-photo,
  .hero-photo-placeholder {
    max-width: 200px;
    aspect-ratio: 1 / 1;
  }

  .three-col {
    grid-template-columns: 1fr;
  }

  .cv-row {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }

  .home-section-block {
    padding: 1.5rem;
  }

  .btn-group {
    flex-direction: column;
    align-items: flex-start;
  }
}