/* ==========================================================================
   FinTech Experiments Seminar — Stylesheet
   Branded to align with Canada Research Chairs visual identity
   ========================================================================== */

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

:root {
  /* CRC / Government of Canada brand palette */
  --color-red: #AF3C43;
  --color-red-dark: #8B2E33;
  --color-red-light: #C45158;
  --color-primary: #26374A;
  --color-primary-light: #335075;
  --color-text: #333333;
  --color-text-light: #5C5C5C;
  --color-bg: #ffffff;
  --color-bg-alt: #F5F5F5;
  --color-border: #DCDEE1;
  --color-border-light: #E8E8E8;
  --color-link: #2B4380;
  --color-link-hover: #0535D2;
  /* Typography — Noto Sans is the GC standard web font */
  --font-sans: 'Noto Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-serif: 'Noto Serif', Georgia, 'Times New Roman', serif;
  --container-width: 1100px;
  --container-narrow: 800px;
  --radius: 4px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
  --shadow-md: 0 2px 8px rgba(0,0,0,0.08);
  --transition: 0.2s ease;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--color-link);
  text-decoration: underline;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-link-hover);
}

h1, h2, h3 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-primary);
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.15rem; }

/* --- Layout --- */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container-narrow {
  max-width: var(--container-narrow);
}

/* --- GC-style Red Top Bar --- */
.gc-bar {
  background: var(--color-red);
  height: 4px;
  width: 100%;
}

/* --- Header --- */
.site-header {
  background: var(--color-bg);
  color: var(--color-text);
  padding: 0;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0;
}

.site-title {
  color: var(--color-primary);
  display: flex;
  flex-direction: column;
  gap: 0;
  line-height: 1.2;
  text-decoration: none;
}

.site-title:hover {
  color: var(--color-primary);
  text-decoration: none;
  opacity: 0.85;
}

.title-main {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-primary);
}

.title-sub {
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--color-red);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 0.15rem;
}

.nav-links a {
  color: var(--color-primary);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius);
  transition: all var(--transition);
  text-decoration: none;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-red);
  background: rgba(175, 60, 67, 0.06);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-primary);
  margin: 5px 0;
  transition: var(--transition);
}

/* --- Hero --- */
.hero {
  background: var(--color-primary);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: #fff;
  position: relative;
  min-height: 340px;
}

.hero-overlay {
  background: rgba(38, 55, 74, 0.78);
  padding: 4.5rem 0 4rem;
  text-align: center;
  min-height: 340px;
  display: flex;
  align-items: center;
}

/* Red accent line at bottom of hero */
.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--color-red);
  z-index: 1;
}

.hero h1 {
  font-size: 2.6rem;
  color: #fff;
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
  text-shadow: 0 2px 8px rgba(0,0,0,0.25);
}

.hero-subtitle {
  font-size: 1.1rem;
  opacity: 0.92;
  max-width: 620px;
  margin: 0 auto 1.5rem;
  line-height: 1.6;
  text-shadow: 0 1px 4px rgba(0,0,0,0.2);
}

.hero-details {
  font-size: 1rem;
}

.hero .schedule {
  margin-bottom: 1.25rem;
  font-size: 1rem;
  opacity: 0.9;
}

/* --- Buttons --- */
.btn {
  display: inline-block;
  padding: 0.5rem 1.2rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius);
  transition: all var(--transition);
  cursor: pointer;
  border: none;
  text-decoration: none;
}

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

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

.btn-outline {
  background: transparent;
  color: var(--color-primary-light);
  border: 1.5px solid var(--color-border);
}

.btn-outline:hover {
  border-color: var(--color-primary-light);
  background: var(--color-bg-alt);
  color: var(--color-primary);
}

.hero .btn-primary {
  padding: 0.6rem 1.6rem;
  font-size: 0.95rem;
}

/* --- Section Titles --- */
.section-title {
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 3px solid var(--color-red);
}

/* --- Call for Papers --- */
.cfp-section {
  padding: 3rem 0;
  background: var(--color-bg-alt);
}

.cfp-card {
  display: flex;
  gap: 2.5rem;
  align-items: flex-start;
  background: var(--color-bg);
  border: 2px solid var(--color-red);
  border-radius: var(--radius);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
}

.cfp-icon {
  flex-shrink: 0;
  width: 100px;
}

.cfp-icon svg {
  width: 100%;
  height: auto;
}

.cfp-content {
  flex: 1;
}

.cfp-content h2 {
  font-size: 1.6rem;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
  border-bottom: 3px solid var(--color-red);
  padding-bottom: 0.4rem;
  display: inline-block;
}

.cfp-lead {
  font-size: 1.05rem;
  line-height: 1.65;
  margin-bottom: 1.25rem;
  color: var(--color-text);
}

.cfp-details {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.cfp-detail-item {
  background: var(--color-bg-alt);
  padding: 0.85rem 1.25rem;
  border-left: 4px solid var(--color-primary-light);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.cfp-detail-item.cfp-deadline {
  border-left-color: var(--color-red);
}

.cfp-label {
  display: block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
  color: var(--color-text-light);
  margin-bottom: 0.15rem;
}

.cfp-deadline .cfp-value {
  color: var(--color-red);
}

.cfp-value {
  display: block;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-primary);
  font-family: var(--font-serif);
}

.cfp-content p {
  font-size: 0.95rem;
  line-height: 1.65;
  margin-bottom: 0.5rem;
  color: var(--color-text);
}

.cfp-note {
  font-style: italic;
  color: var(--color-text-light) !important;
  font-size: 0.9rem !important;
  margin-top: 0.5rem;
}

@media (max-width: 768px) {
  .cfp-card {
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 2rem 1.5rem;
    gap: 1.5rem;
  }

  .cfp-icon {
    width: 72px;
  }

  .cfp-details {
    flex-direction: column;
    gap: 0.75rem;
  }

  .cfp-detail-item {
    border-left: none;
    border-bottom: 3px solid var(--color-primary-light);
    border-radius: var(--radius) var(--radius) 0 0;
  }

  .cfp-detail-item.cfp-deadline {
    border-left: none;
    border-bottom-color: var(--color-red);
  }
}

/* --- About Section --- */
.about-section {
  padding: 3rem 0 2rem;
  background: var(--color-bg);
}

.about-section p {
  font-size: 1rem;
  line-height: 1.75;
  margin-bottom: 1rem;
  color: var(--color-text);
}

.about-section ul {
  padding-left: 1.5rem;
  margin-bottom: 1.5rem;
}

.about-section li {
  margin-bottom: 0.4rem;
  line-height: 1.6;
}

/* --- Format Section --- */
.format-section {
  padding: 2rem 0 2.5rem;
  background: var(--color-bg-alt);
}

.format-details {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

.format-item {
  flex: 1;
  min-width: 200px;
  padding: 1.25rem;
  background: var(--color-bg);
  border-left: 4px solid var(--color-red);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.format-item strong {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-red);
  margin-bottom: 0.35rem;
}

.format-item span {
  font-size: 0.95rem;
  color: var(--color-text);
}

/* --- Organizers Section --- */
.organizers-section {
  padding: 3rem 0;
  background: var(--color-bg);
}

.organizer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  margin-top: 1.25rem;
}

.organizers-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.organizers-title h2 {
  margin-bottom: 0;
}

.title-logo {
  max-height: 80px;
  width: auto;
}

.organizer-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow var(--transition);
  text-align: center;
}

.organizer-card:hover {
  box-shadow: var(--shadow-md);
}

.organizer-photo {
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: var(--color-bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
}

.organizer-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Placeholder when no image exists */
.organizer-photo img[src=""],
.organizer-photo img:not([src]) {
  display: none;
}

.organizer-photo::after {
  content: '';
}

.organizer-info {
  padding: 1.25rem;
}

.organizer-info h3 {
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
}

.organizer-info h3 a {
  color: var(--color-primary);
  text-decoration: none;
}

.organizer-info h3 a:hover {
  color: var(--color-red);
  text-decoration: underline;
}

.organizer-role {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 0.1rem;
}

.organizer-affiliation {
  font-size: 0.85rem;
  color: var(--color-text-light);
  margin-bottom: 0.15rem;
}

.organizer-title {
  font-size: 0.8rem;
  color: var(--color-red);
  font-weight: 500;
  margin-top: 0.3rem;
}

/* --- Contact Section --- */
.contact-section {
  padding: 2.5rem 0;
  background: var(--color-bg-alt);
}

.contact-section p {
  font-size: 1rem;
  line-height: 1.7;
}

/* --- Seminar Sections --- */
.upcoming-seminars,
.past-seminars-preview {
  padding: 3rem 0;
}

.upcoming-seminars {
  background: var(--color-bg);
}

.past-seminars-preview {
  background: var(--color-bg-alt);
}

/* --- Seminar Cards --- */
.seminar-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.seminar-card {
  display: flex;
  gap: 1.25rem;
  padding: 1.25rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-left: 4px solid var(--color-border);
  border-radius: 0 var(--radius) var(--radius) 0;
  transition: all var(--transition);
}

.seminar-card:hover {
  border-left-color: var(--color-red);
  box-shadow: var(--shadow-md);
}

.seminar-card.featured {
  padding: 1.75rem;
  border: 1px solid var(--color-border);
  border-left: 5px solid var(--color-red);
  background: #fff;
  box-shadow: var(--shadow-md);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.seminar-card.compact {
  padding: 1rem 1.25rem;
}

/* --- Date Badge --- */
.seminar-date-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 60px;
  padding: 0.5rem;
  background: var(--color-bg-alt);
  border-radius: var(--radius);
  text-align: center;
  flex-shrink: 0;
}

.seminar-card.featured .seminar-date-badge {
  background: var(--color-red);
  color: #fff;
  min-width: 72px;
  padding: 0.65rem;
}

.seminar-date-badge .month {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.seminar-card.featured .seminar-date-badge .month {
  opacity: 0.9;
}

.seminar-date-badge .day {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.1;
}

.seminar-card.featured .seminar-date-badge .day {
  font-size: 1.65rem;
}

.seminar-date-badge .year {
  font-size: 0.65rem;
  opacity: 0.6;
}

.seminar-date-badge.small {
  min-width: 52px;
}

.seminar-date-badge.small .day {
  font-size: 1.25rem;
}

/* --- Seminar Info --- */
.seminar-info {
  flex: 1;
  min-width: 0;
}

.seminar-title {
  margin-bottom: 0.25rem;
}

.seminar-title a {
  color: var(--color-primary);
  text-decoration: none;
}

.seminar-title a:hover {
  color: var(--color-red);
  text-decoration: underline;
}

.seminar-speaker {
  font-size: 0.95rem;
  color: var(--color-text);
  margin-bottom: 0.2rem;
}

.affiliation {
  color: var(--color-text-light);
}

.seminar-coauthors {
  font-size: 0.85rem;
  color: var(--color-text-light);
  font-style: italic;
  margin-bottom: 0.2rem;
}

.seminar-time {
  font-size: 0.8rem;
  color: var(--color-text-light);
  margin-bottom: 0.35rem;
}

.seminar-discussant {
  font-size: 0.85rem;
  color: var(--color-text-light);
  margin-bottom: 0.35rem;
}

.seminar-abstract {
  margin-top: 0.75rem;
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.65;
}

.seminar-links {
  margin-top: 1rem;
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.seminar-links.compact {
  margin-top: 0.35rem;
}

.link-text {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-link);
  padding-right: 0.75rem;
  border-right: 1px solid var(--color-border);
  text-decoration: none;
}

.link-text:last-child {
  border-right: none;
  padding-right: 0;
}

.link-text:hover {
  color: var(--color-red);
  text-decoration: underline;
}

/* --- View All --- */
.view-all {
  margin-top: 1.5rem;
  text-align: center;
}

.view-all a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-link);
}

/* --- Badges --- */
.badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.2rem 0.6rem;
  border-radius: 3px;
  margin-bottom: 0.75rem;
}

.badge-upcoming {
  background: #e8f5e9;
  color: #2e7d32;
}

.badge-past {
  background: var(--color-bg-alt);
  color: var(--color-text-light);
}

/* --- Single Seminar Page --- */
.seminar-single {
  padding: 3rem 0;
}

.seminar-header {
  margin-bottom: 1.5rem;
}

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

.seminar-meta {
  color: var(--color-text-light);
  font-size: 0.95rem;
}

.seminar-meta p {
  margin-bottom: 0.25rem;
}

.seminar-speaker-detail {
  font-size: 1.1rem;
  color: var(--color-text);
}

.seminar-time-detail {
  font-size: 0.9rem;
}

.seminar-links-bar {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  padding: 1rem 0;
  margin-bottom: 1.5rem;
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
}

.seminar-abstract-full {
  margin-bottom: 2rem;
}

.seminar-abstract-full h2 {
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
}

.seminar-abstract-full p {
  font-size: 0.95rem;
  color: var(--color-text-light);
  line-height: 1.75;
}

.back-link {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border-light);
  font-size: 0.9rem;
}

/* --- List Page --- */
.seminar-list-page {
  padding: 3rem 0 4rem;
}

.seminar-list-page h1 {
  margin-bottom: 0.5rem;
}

.year-heading {
  margin-top: 2rem;
  margin-bottom: 1rem;
  font-size: 1.25rem;
  color: var(--color-text-light);
  border-bottom: 2px solid var(--color-red);
  padding-bottom: 0.35rem;
}

.no-seminars {
  text-align: center;
  padding: 3rem;
  color: var(--color-text-light);
  font-size: 1rem;
}

/* --- Static Pages --- */
.page-single {
  padding: 3rem 0 4rem;
}

.page-single h1 {
  margin-bottom: 1.5rem;
}

.content h2 {
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.content p {
  margin-bottom: 1rem;
}

.content ul, .content ol {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

.content li {
  margin-bottom: 0.35rem;
}

/* --- Seminars TBA --- */
.seminars-tba {
  padding: 3rem 0;
  background: var(--color-bg);
}

.tba-notice {
  text-align: center;
  padding: 2.5rem 2rem;
  background: var(--color-bg-alt);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius);
}

.tba-notice p {
  margin-bottom: 0.5rem;
  color: var(--color-text-light);
}

.tba-notice p:last-child {
  margin-bottom: 0;
}

.tba-notice strong {
  color: var(--color-primary);
  font-size: 1.1rem;
}

/* --- Footer --- */
.site-footer {
  background: var(--color-primary);
  color: rgba(255,255,255,0.8);
  padding: 2rem 0 1.5rem;
  text-align: center;
  font-size: 0.8rem;
  position: relative;
}

/* Red bar above footer */
.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--color-red);
}

.footer-logo {
  margin-bottom: 1rem;
}

.footer-logo img {
  max-width: 800px;
  height: auto;
}

.site-footer a {
  color: rgba(255,255,255,0.9);
  text-decoration: underline;
}

.site-footer a:hover {
  color: #fff;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .hero {
    min-height: 240px;
  }

  .hero-overlay {
    min-height: 240px;
    padding: 3rem 0 2.5rem;
  }

  .hero h1 {
    font-size: 1.85rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .nav-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--color-bg);
    padding: 0.5rem 1rem 1rem;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
  }

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

  .nav-links a {
    padding: 0.6rem 0.75rem;
    display: block;
  }

  .organizer-grid {
    grid-template-columns: 1fr;
    max-width: 340px;
    margin-left: auto;
    margin-right: auto;
  }

  .format-details {
    flex-direction: column;
    gap: 1rem;
  }

  .seminar-card {
    flex-direction: column;
    gap: 0.75rem;
  }

  .seminar-date-badge {
    flex-direction: row;
    gap: 0.5rem;
    min-width: unset;
    width: fit-content;
  }

  .seminar-date-badge .day {
    font-size: 1.1rem;
  }

  h1 {
    font-size: 1.6rem;
  }
}