/*================================================================
  CIAWU BASE.CSS - Complete Production-Ready Stylesheet
  For Flask/Jinja2 CIAWU Web Application
  Mobile-First • Accessible • Performant
================================================================*/

:root {
  /* CIAWU Brand Colors */
  --ciawu-red: #c8102e;
  --ciawu-blue: #003f7f;
  --ciawu-white: #ffffff;
  
  /* Neutrals */
  --bg-light: #f5f7fb;
  --bg-white: #ffffff;
  --text-dark: #222222;
  --text-muted: #666666;
  --text-light: #888888;
  --border-light: #dde2f0;
  
  /* Typography Scale */
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-md: 1.125rem;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.5rem;
  --font-size-h1: clamp(1.75rem, 4vw, 2.5rem);
  
  /* Spacing Scale */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  
  /* Effects */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
  --border-radius: 8px;
}

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

* {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--text-dark);
  background-color: var(--ciawu-white);
  font-size: var(--font-size-base);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

main {
  flex: 1;
  padding-bottom: var(--space-xl);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-sm);
}

h1 { font-size: var(--font-size-h1); }
h2 { font-size: var(--font-size-xl); }
h3 { font-size: var(--font-size-lg); }
h4 { font-size: var(--font-size-md); }

p {
  margin-bottom: var(--space-sm);
  color: var(--text-muted);
}

a {
  color: var(--ciawu-blue);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--ciawu-red);
  text-decoration: underline;
}

ul, ol {
  margin-bottom: var(--space-sm);
  padding-left: var(--space-lg);
}

li {
  margin-bottom: var(--space-xs);
}

/* Layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* Sections */
section {
  padding: var(--space-xl) 0 var(--space-lg);
}

section h1,
section h2 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-md);
  border-left: 4px solid var(--ciawu-red);
  padding-left: var(--space-sm);
}

/* Header */
header {
  border-bottom: 3px solid var(--ciawu-red);
  background-color: var(--ciawu-white);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-md);
}

.top-bar {
  background-color: var(--ciawu-blue);
  color: var(--ciawu-white);
  font-size: var(--font-size-sm);
  padding: var(--space-sm) var(--space-md);
}

.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-sm);
}

/* Main nav: logo + menu centered as a group */
.nav {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1rem;
  flex-wrap: wrap;
  gap: 8.5rem;
}

/* CIAWU Logo - text perfectly centered to logo image */
.logo {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  height: 52px;
  margin-left: 1rem;
}

.logo img {
  height: 48px;
  width: auto;
  display: block;
  flex-shrink: 0;
  margin-left: 2.0rem; /* fine-tuned for desktop */
}

.logo-text {
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--ciawu-red);
  line-height: 1.1;
  white-space: nowrap;
}

.logo-text span {
  color: var(--ciawu-blue);
  font-weight: 700;
}

/* Nav menu */
.nav-menu {
  display: flex;
  gap: var(--space-md);
  font-size: var(--font-size-sm);
}

.nav-menu a {
  padding: var(--space-xs) var(--space-sm);
  border-radius: 4px;
  position: relative;
  white-space: nowrap;
  transition: all 0.2s ease;
}

/* Fancy nav hover underline */
.nav-menu a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--ciawu-red), var(--ciawu-blue));
  transition: width 0.2s ease;
}

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

.nav-menu a.cta {
  background-color: var(--ciawu-red);
  color: var(--ciawu-white);
  font-weight: 600;
}

/* Hamburger toggle – hidden on desktop by default */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.4rem;
  cursor: pointer;
  color: var(--ciawu-blue);
}

/* screen-reader only text */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

/* News Tabs */
.news-tabs {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--ciawu-red) transparent;
  padding-bottom: var(--space-xs);
}

.news-tabs::-webkit-scrollbar {
  height: 4px;
}

.news-tabs::-webkit-scrollbar-thumb {
  background: var(--ciawu-red);
  border-radius: 2px;
}

.news-tab {
  border: none;
  background: transparent;
  padding: var(--space-xs) 0;
  cursor: pointer;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--ciawu-blue);
  white-space: nowrap;
}

.news-tab + .news-tab::before {
  content: "|";
  color: var(--ciawu-red);
  margin: 0 var(--space-sm);
}

.news-tab.active {
  color: var(--ciawu-red);
  text-decoration: underline;
}

.news-panel {
  display: none;
  margin-top: var(--space-lg);
}

.news-panel.active {
  display: block;
}

/* Cards */
.exec-team-grid,
.strip-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  margin-top: var(--space-lg);
}

.card,
.exec-card,
.app-card,
.panel,
.sector-card {
  background-color: var(--bg-white);
  border-radius: var(--border-radius);
  padding: var(--space-md);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  transition: all 0.15s ease;
}

.card:hover,
.exec-card:hover,
.app-card:hover,
.panel:hover,
.sector-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.exec-card {
  text-align: center;
}

.exec-card img {
  width: 100%;
  max-width: 140px;
  height: 140px;
  object-fit: cover;
  border-radius: 50%;
  margin-bottom: var(--space-sm);
}

.exec-role {
  font-size: var(--font-size-sm);
  color: var(--ciawu-blue);
  margin-bottom: var(--space-xs);
}

/* Buttons */
.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
  font-weight: 600;
  padding: var(--space-sm) var(--space-lg);
  border-radius: 999px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s ease;
  letter-spacing: 0.02em;
}

.btn-primary {
  background-color: var(--ciawu-red);
  color: var(--ciawu-white);
}

.btn-secondary {
  background-color: var(--ciawu-white);
  color: var(--ciawu-blue);
  border: 1px solid var(--ciawu-blue);
}

.btn-primary:hover,
.btn-secondary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* Story Cards */
.story-card {
  background-color: var(--bg-light);
  border-radius: var(--border-radius);
  padding: var(--space-md);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--space-lg);
  transition: box-shadow 0.2s ease;
}

.story-card:hover {
  box-shadow: var(--shadow-lg);
}

.story-horizontal {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
}

.story-media {
  flex: 0 0 140px;
  max-width: 140px;
}

.story-media img {
  width: 100%;
  height: 100px;
  object-fit: cover;
  border-radius: var(--border-radius);
}

.story-body {
  flex: 1;
}

.story-link {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
  color: inherit;
  text-decoration: none;
}

.story-link:hover h3 {
  text-decoration: underline;
}

/* Modal */
.story-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.25s ease-out;
}

.story-modal.open {
  pointer-events: auto;
  opacity: 1;
}

.story-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0);
  transition: background 0.25s ease-out;
}

.story-modal.open .story-modal-backdrop {
  background: rgba(0, 0, 0, 0.55);
}

.story-modal-dialog {
  position: relative;
  width: 96vw;
  max-width: 1100px;
  max-height: 95vh;
  margin: 3rem auto;
  background: var(--ciawu-white);
  border-radius: var(--border-radius);
  padding: var(--space-lg);
  display: flex;
  gap: var(--space-lg);
  flex-wrap: wrap;
  overflow-y: auto;
  transform: scale(0.96) translateY(10px);
  opacity: 0;
  transition: all 0.25s ease-out;
}

.story-modal.open .story-modal-dialog {
  transform: scale(1) translateY(0);
  opacity: 1;
}

.story-modal-close {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  cursor: pointer;
  padding: 0;
}

.story-modal-close::before,
.story-modal-close::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 70%;
  height: 2px;
  background-color: var(--ciawu-red);
  transform-origin: center;
}

.story-modal-close::before {
  transform: translate(-50%, -50%) rotate(45deg);
}

.story-modal-close::after {
  transform: translate(-50%, -50%) rotate(-45deg);
}

/* Branch Table */
.branch-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 1.5rem 0.5rem;
  text-align: center;
  margin-top: var(--space-sm);
}

.branch-table th,
.branch-table td {
  padding: var(--space-sm) var(--space-xs);
  vertical-align: top;
}

.branch-table th {
  font-weight: 600;
  color: var(--ciawu-red);
}

/* Footer */
footer {
  margin-top: auto;
  background-color: var(--ciawu-blue);
  color: var(--ciawu-white);
  padding: var(--space-lg) 0;
  font-size: var(--font-size-sm);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

footer a {
  color: var(--ciawu-white);
}

footer a:hover {
  color: var(--ciawu-white);
  text-decoration: underline;
}

/* Larger screens */
@media (min-width: 720px) {
  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }

  .exec-team-grid,
  .strip-cards {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  }

  .nav {
    padding: var(--space-lg) var(--space-xl);
  }
}

/* Mobile layout + nav dropdown */
@media (max-width: 640px) {
  .container {
    padding: 0 var(--space-md);
  }

  .nav {
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 0.4rem;
    padding: var(--space-sm) var(--space-md);
  }

  .logo {
    height: auto;
    justify-content: center;
    text-align: center;
  }

  .logo img {
    height: 40px;
    margin-left: 2.5rem;
  }

  .nav-toggle {
    display: block;
    margin-left: auto;
  }

  .nav-menu {
    display: none;
    flex-direction: column;
    width: 100%;
    align-items: center;
    gap: 0.4rem;
    margin-top: 0.5rem;
  }

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

  .story-horizontal {
    flex-direction: column;
  }

  .story-media {
    max-width: 100%;
  }

  .story-media img {
    height: 180px;
  }

  .story-modal-dialog {
    margin: 2rem 1rem;
    flex-direction: column;
  }
}

/* Print Styles */
@media print {
  header, footer, .news-tabs {
    display: none;
  }
  
  .container {
    max-width: none;
    padding: 0;
  }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
  :root {
    --ciawu-red: #ff0000;
    --ciawu-blue: #0000ff;
  }
  
  .card,
  .exec-card {
    border-width: 2px;
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus Visible for Accessibility */
@supports selector(:focus-visible) {
  a:focus-visible,
  button:focus-visible,
  .btn-primary:focus-visible,
  .btn-secondary:focus-visible {
    outline: 2px solid var(--ciawu-red);
    outline-offset: 2px;
  }
}

/* About page logos */
#about-affiliations .affiliation-logo-box {
  width: 120px;
  height: 120px;
}

#about-affiliations .affiliation-logo-box img {
  max-width: 120%;
  max-height: 120%;
  object-fit: contain;
  display: block;
}

#about-affiliations .affiliation-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: nowrap;
}

#about-affiliations .affiliation-item > div:last-child {
  flex: 1;
}

#about-banking-partner .affiliation-logo-box {
  width: 52px;
  height: 52px;
}

#about-banking-partner .affiliation-logo-box img {
  max-width: 120%;
  max-height: 120%;
  object-fit: contain;
  display: block;
}