/* ============================================================
   FRIENDS OF TEACH FOR BULGARIA — styles.css
   ============================================================ */

/* ---------- TOKENS ---------- */
:root {
  --color-navy:       #1a2e4a;
  --color-navy-dark:  #111f33;
  --color-teal:       #1b6b7b;
  --color-teal-light: #2a8a9e;
  --color-gold:       #e8a020;
  --color-gold-light: #f5c04a;
  --color-warm-bg:    #fdf7ef;
  --color-light-bg:   #f4f7fb;
  --color-white:      #ffffff;
  --color-text:       #1c2b3a;
  --color-text-muted: #546e7a;
  --color-border:     #d6e0eb;
  --color-placeholder:#c0392b;

  --font-sans: 'Georgia', 'Times New Roman', serif;
  --font-ui:   system-ui, -apple-system, 'Segoe UI', Helvetica, Arial, sans-serif;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,.10);
  --shadow-lg: 0 8px 32px rgba(0,0,0,.12);

  --max-width: 1100px;
  --section-pad: clamp(3rem, 6vw, 5rem);
}

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

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

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

img, svg { display: block; max-width: 100%; }

a {
  color: var(--color-teal);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color .15s;
}
a:hover, a:focus-visible { color: var(--color-teal-light); }
a:focus-visible {
  outline: 3px solid var(--color-gold);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

ul, ol { padding-left: 1.25rem; }
ul[role="list"], ol[role="list"] { padding-left: 0; list-style: none; }

/* ---------- LAYOUT HELPERS ---------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 2rem);
}

.section {
  padding-block: var(--section-pad);
}
.section--white  { background: var(--color-white); }
.section--light  { background: var(--color-light-bg); }
.section--warm   { background: var(--color-warm-bg); }
.section--accent { background: var(--color-navy); color: var(--color-white); }

/* ---------- TYPOGRAPHY ---------- */
.section-heading {
  font-family: var(--font-sans);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 1.25rem;
  line-height: 1.25;
}
.section-heading--light { color: var(--color-white); }

.section-intro {
  font-size: clamp(1.05rem, 1.8vw, 1.2rem);
  color: var(--color-text-muted);
  max-width: 720px;
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.prose { max-width: 720px; margin-bottom: 1.25rem; }
.prose--wide { max-width: 820px; }
.prose--centered { max-width: 720px; }

.prose p + p { margin-top: .85rem; }

.learn-more-link { margin-top: 1.5rem; }
.learn-more-link a {
  font-weight: 600;
  text-decoration: none;
  color: var(--color-teal);
}
.learn-more-link a:hover { color: var(--color-teal-light); text-decoration: underline; }

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .7rem 1.5rem;
  border-radius: var(--radius-md);
  font-family: var(--font-ui);
  font-size: .95rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background .18s, color .18s, border-color .18s, box-shadow .18s;
  white-space: nowrap;
}
.btn:focus-visible {
  outline: 3px solid var(--color-gold);
  outline-offset: 3px;
}

.btn-primary {
  background: var(--color-teal);
  color: var(--color-white);
  border-color: var(--color-teal);
}
.btn-primary:hover {
  background: var(--color-teal-light);
  border-color: var(--color-teal-light);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: transparent;
  color: var(--color-navy);
  border-color: var(--color-navy);
}
.btn-secondary:hover {
  background: var(--color-navy);
  color: var(--color-white);
}

.btn-outline-light {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,.7);
}
.btn-outline-light:hover {
  background: rgba(255,255,255,.12);
  border-color: var(--color-white);
  color: var(--color-white);
}

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

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 64px;
  padding-block: .75rem;
}

.site-logo {
  font-family: var(--font-sans);
  font-size: clamp(.9rem, 2vw, 1.05rem);
  font-weight: 700;
  color: var(--color-navy);
  text-decoration: none;
  line-height: 1.25;
  flex-shrink: 0;
  max-width: 220px;
}
.site-logo:hover { color: var(--color-teal); }

.primary-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: .25rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-list a {
  display: block;
  padding: .4rem .65rem;
  border-radius: var(--radius-sm);
  font-size: .9rem;
  font-weight: 500;
  color: var(--color-text);
  text-decoration: none;
  transition: background .15s, color .15s;
}
.nav-list a:hover {
  background: var(--color-light-bg);
  color: var(--color-teal);
}

.nav-cta { font-size: .88rem; padding: .5rem 1.1rem; }

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 6px;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
}
.hamburger-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-navy);
  border-radius: 2px;
  transition: transform .2s, opacity .2s;
}
.nav-toggle[aria-expanded="true"] .hamburger-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .hamburger-bar:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] .hamburger-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- HERO ---------- */
.hero {
  background: linear-gradient(135deg, var(--color-navy-dark) 0%, var(--color-navy) 55%, var(--color-teal) 100%);
  color: var(--color-white);
  padding-block: clamp(3.5rem, 8vw, 6rem);
  overflow: hidden;
  position: relative;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  align-items: center;
}

.hero-content { max-width: 640px; }

#hero-heading {
  font-family: var(--font-sans);
  font-size: clamp(1.9rem, 4.5vw, 3rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-white);
  margin-bottom: 1.25rem;
}

.hero-body {
  font-size: clamp(1rem, 1.8vw, 1.15rem);
  color: rgba(255,255,255,.88);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
}

/* Decorative accent blocks */
.hero-accent {
  display: flex;
  flex-direction: column;
  gap: 12px;
  opacity: .25;
  flex-shrink: 0;
}
.accent-block {
  border-radius: var(--radius-md);
  background: var(--color-gold);
}
.accent-block--1 { width: 80px; height: 80px; }
.accent-block--2 { width: 60px; height: 60px; align-self: flex-end; background: var(--color-teal-light); }
.accent-block--3 { width: 100px; height: 40px; }

/* ---------- INVEST LIST ---------- */
.invest-block { margin-block: 1.75rem; }

.invest-heading {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: .75rem;
  text-transform: uppercase;
  letter-spacing: .05em;
}

.invest-list {
  display: flex;
  flex-direction: column;
  gap: .55rem;
}
.invest-list li {
  display: flex;
  align-items: center;
  gap: .6rem;
  font-size: 1.05rem;
  color: var(--color-text);
}
.invest-icon {
  color: var(--color-gold);
  font-size: .75rem;
  flex-shrink: 0;
}

/* ---------- STATS ---------- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.stat-card {
  background: var(--color-navy);
  color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 1.75rem 1.5rem;
  text-align: center;
  box-shadow: var(--shadow-md);
}

.stat-number {
  display: block;
  font-family: var(--font-sans);
  font-size: clamp(2rem, 4vw, 2.6rem);
  font-weight: 700;
  color: var(--color-gold-light);
  line-height: 1.1;
  margin-bottom: .4rem;
}
.stat-label {
  display: block;
  font-size: .9rem;
  color: rgba(255,255,255,.8);
  letter-spacing: .02em;
}

/* ---------- STORIES ---------- */
.stories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.story-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-md);
  border-top: 4px solid var(--color-teal);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.story-card-header {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.story-initial {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-teal);
  color: var(--color-white);
  font-family: var(--font-sans);
  font-size: 1.4rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.story-name {
  font-family: var(--font-sans);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: .15rem;
}
.story-subtitle {
  font-size: .9rem;
  color: var(--color-teal);
  font-style: italic;
}

.story-body {
  font-size: .95rem;
  color: var(--color-text);
  line-height: 1.75;
}

/* ---------- CONTACT / INFO CARD ---------- */
.info-card-wrapper { margin-top: 1.5rem; }

.info-card {
  background: var(--color-light-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(1.25rem, 3vw, 2rem);
  max-width: 720px;
  box-shadow: var(--shadow-sm);
}

.info-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem 2rem;
}

.info-row {
  display: flex;
  flex-direction: column;
  gap: .25rem;
}
.info-row--full {
  grid-column: 1 / -1;
}

.info-list dt {
  font-size: .78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--color-text-muted);
}
.info-list dd {
  font-size: 1rem;
  color: var(--color-text);
  font-weight: 500;
}

.placeholder {
  color: var(--color-placeholder);
  font-style: normal;
}
a.placeholder { color: var(--color-placeholder); }
a.placeholder:hover { color: #a93226; }

.tax-note {
  margin-top: 1.25rem;
  font-size: .9rem;
  color: var(--color-text-muted);
  max-width: 720px;
  padding: .85rem 1rem;
  background: #fffbf2;
  border-left: 3px solid var(--color-gold);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

/* ---------- GET UPDATES ---------- */
.updates-inner { text-align: center; }

.updates-body {
  font-size: clamp(1rem, 1.8vw, 1.1rem);
  color: rgba(255,255,255,.82);
  max-width: 560px;
  margin-inline: auto;
  margin-bottom: 2rem;
}

/* ---------- FAQ ---------- */
.faq-list {
  max-width: 760px;
  display: flex;
  flex-direction: column;
  gap: .75rem;
  margin-top: 1.5rem;
}

.faq-item {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem 1.25rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-navy);
  cursor: pointer;
  list-style: none;
  user-select: none;
}
.faq-question::-webkit-details-marker { display: none; }
.faq-question::after {
  content: '+';
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--color-teal);
  transition: transform .2s;
  flex-shrink: 0;
}
details[open] .faq-question::after {
  transform: rotate(45deg);
}
.faq-question:hover { background: var(--color-light-bg); }

.faq-answer {
  padding: .25rem 1.25rem 1.1rem;
  font-size: .95rem;
  color: var(--color-text);
  line-height: 1.75;
  border-top: 1px solid var(--color-border);
}

/* ---------- FOOTER ---------- */
.site-footer {
  background: var(--color-navy-dark);
  color: rgba(255,255,255,.75);
  padding-block: 2.5rem;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem 3rem;
  align-items: start;
}

.footer-org-name {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-white);
  margin-bottom: .3rem;
}
.footer-status, .footer-ein {
  font-size: .85rem;
  color: rgba(255,255,255,.6);
}
.footer-ein { margin-top: .15rem; }

.footer-links {
  display: flex;
  flex-direction: column;
  gap: .5rem;
}
.footer-links a {
  font-size: .9rem;
  color: rgba(255,255,255,.7);
  text-decoration: none;
}
.footer-links a:hover { color: var(--color-gold-light); text-decoration: underline; }
.footer-links a.placeholder { color: rgba(192,57,43,.8); }
.footer-links a.placeholder:hover { color: var(--color-placeholder); }

.footer-copy {
  grid-column: 1 / -1;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255,255,255,.12);
  font-size: .82rem;
  color: rgba(255,255,255,.45);
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 768px) {

  /* Nav */
  .nav-toggle { display: flex; }

  .primary-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    flex-direction: column;
    align-items: stretch;
    padding: 1rem;
    gap: .5rem;
    z-index: 99;
  }
  .primary-nav.is-open { display: flex; }

  .nav-list { flex-direction: column; align-items: stretch; }
  .nav-list a { padding: .65rem .75rem; }
  .nav-cta { text-align: center; margin-top: .25rem; }

  /* Hero */
  .hero-inner {
    grid-template-columns: 1fr;
  }
  .hero-accent { display: none; }

  /* Info card grid */
  .info-list { grid-template-columns: 1fr; }
  .info-row--full { grid-column: 1; }

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

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { text-align: center; justify-content: center; }
  .stats-grid { grid-template-columns: 1fr; }
  .stories-grid { grid-template-columns: 1fr; }
}

/* ---------- SKIP LINK (accessibility) ---------- */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  background: var(--color-teal);
  color: var(--color-white);
  padding: .5rem 1rem;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  font-weight: 600;
  text-decoration: none;
  z-index: 9999;
  transition: top .15s;
}
.skip-link:focus { top: 0; }

/* ---------- PRINT ---------- */
@media print {
  .site-header, .nav-toggle, .hero-accent, .hero-actions,
  .updates-inner .btn, .site-footer { display: none; }
  .section { padding-block: 1.5rem; }
  a[href]::after { content: " (" attr(href) ")"; font-size: .75em; }
}