/* =========================================================
   ΥΦΑΝΤΗΡΙ ΙΣΤΟΡΙΑΣ — shared stylesheet (v2)
   Fonts: PT Serif + PT Sans — matched superfamily, full Greek
   glyph coverage (fixes inconsistent letterforms).
   ========================================================= */

:root {
  --paper: #FAF3E4;        /* lighter parchment background */
  --paper-deep: #F0E2C4;   /* secondary background / bands */
  --ink: #2B2013;          /* darker, higher-contrast text */
  --ink-soft: #55432C;     /* secondary text — still readable */
  --accent: #A2532B;       /* vivid warm rust/terracotta */
  --accent-deep: #7A3618;  /* hover / active states */
  --line: rgba(43, 32, 19, 0.18);

  --font-head: "PT Serif", Georgia, serif;
  --font-body: "PT Sans", -apple-system, "Segoe UI", sans-serif;

  --max-width: 1240px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  background-image: radial-gradient(ellipse 900px 500px at 50% -10%, rgba(162, 83, 43, 0.06), transparent);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

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

h1, h2, h3 {
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--ink);
  line-height: 1.25;
  margin: 0 0 0.6em;
}
h1 { font-size: clamp(2.1rem, 4vw, 3.1rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3 { font-size: 1.28rem; }

p { margin: 0 0 1.1em; max-width: 70ch; color: var(--ink); }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 40px;
}
@media (max-width: 720px) {
  .container { padding: 0 22px; }
}

a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ---------------- ORNAMENTAL DIVIDER ---------------- */

.flourish {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin: 0;
  padding: 0;
  color: var(--accent);
}
.flourish::before, .flourish::after {
  content: "";
  height: 1px;
  width: 64px;
  background: var(--line);
}
.flourish span {
  font-size: 0.9rem;
  transform: rotate(45deg);
  display: inline-block;
}

/* ---------------- NAV ---------------- */

.site-header {
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-wrap {
  position: relative;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 16px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.nav-logo img {
  height: 312px;
  width: auto;
  mix-blend-mode: multiply; /* blends a white logo background into the parchment */
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-wrap: nowrap;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  display: inline-block;
  white-space: nowrap;
  padding: 9px 11px;
  color: var(--ink);
  font-size: 1.15rem;
  font-weight: 500;
  border-radius: 3px;
  transition: color 0.15s ease, background 0.15s ease;
}
.nav-links a:hover { color: var(--accent-deep); background: var(--paper-deep); }
.nav-links a.active { color: var(--accent); font-weight: 700; }

/* ---------------- NAV DROPDOWN ("Μαθήματα") ---------------- */

.nav-dropdown { position: relative; }

.nav-dropdown-toggle {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
  padding: 9px 11px;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.15rem;
  font-weight: 500;
  border: none;
  background: none;
  border-radius: 3px;
  cursor: pointer;
  transition: color 0.15s ease, background 0.15s ease;
}
.nav-dropdown-toggle:hover { color: var(--accent-deep); background: var(--paper-deep); }
.nav-dropdown-toggle.active { color: var(--accent); font-weight: 700; }
.nav-dropdown-caret { font-size: 0.7em; transition: transform 0.15s ease; }
.nav-dropdown-toggle[aria-expanded="true"] .nav-dropdown-caret { transform: rotate(180deg); }

.nav-dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  margin: 4px 0 0;
  padding: 6px 0;
  list-style: none;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 4px;
  box-shadow: 0 10px 24px rgba(43, 32, 19, 0.14);
  z-index: 110;
}
.nav-dropdown-menu.open { display: flex; flex-direction: column; }
.nav-dropdown-menu a {
  display: block;
  padding: 10px 16px;
  color: var(--ink);
  font-size: 1.05rem;
  font-weight: 500;
  white-space: nowrap;
  border-radius: 0;
}
.nav-dropdown-menu a:hover { color: var(--accent-deep); background: var(--paper-deep); }
.nav-dropdown-menu a.active { color: var(--accent); font-weight: 700; }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 8px 10px;
  cursor: pointer;
  color: var(--ink);
  font-size: 1.1rem;
}

@media (max-width: 1150px) {
  .nav-toggle { display: block; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: stretch;
    flex-wrap: wrap;
    padding: 8px 40px 16px;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 13px 8px; border-bottom: 1px solid var(--line); }
  .nav-logo img { height: 216px; }

  .nav-dropdown-toggle {
    width: 100%;
    justify-content: space-between;
    padding: 13px 8px;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
    font-size: 1.15rem;
  }
  .nav-dropdown-menu {
    position: static;
    display: none;
    width: 100%;
    margin: 0;
    padding: 0 0 0 16px;
    border: none;
    border-radius: 0;
    box-shadow: none;
    background: var(--paper-deep);
  }
  .nav-dropdown-menu.open { display: flex; }
  .nav-dropdown-menu a { padding: 12px 8px; border-bottom: 1px solid var(--line); }
}

/* ---------------- HERO ---------------- */

.hero { padding: 80px 0 60px; border-bottom: 1px solid var(--line); }
.hero .eyebrow {
  color: var(--accent);
  font-family: var(--font-head);
  font-style: italic;
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 0.5em;
}
.hero p.lede { font-size: 1.2rem; color: var(--ink-soft); max-width: 64ch; }

.page-hero { padding: 60px 0 44px; border-bottom: 1px solid var(--line); }
.page-hero .eyebrow {
  color: var(--accent);
  font-family: var(--font-head);
  font-style: italic;
  font-weight: 700;
  font-size: 1.05rem;
  margin-bottom: 0.4em;
}
.page-hero p.lede { font-size: 1.15rem; color: var(--ink-soft); max-width: 64ch; }

/* ---------------- SECTIONS ---------------- */

section { padding: 64px 0; }
section.band { background: var(--paper-deep); }
section + section { border-top: 1px solid var(--line); }

.rule { border: none; border-top: 1px solid var(--line); margin: 44px 0; }

/* drop cap for editorial feel on longer intro paragraphs */
.lead-para::first-letter {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 3.4em;
  float: left;
  line-height: 0.85;
  padding-right: 10px;
  padding-top: 4px;
  color: var(--accent);
}

/* ---------------- CARDS / LIST BLOCKS ---------------- */

.plain-list { list-style: none; margin: 0; padding: 0; }
.plain-list li {
  padding: 22px 0 22px 20px;
  border-top: 1px solid var(--line);
  border-left: 3px solid transparent;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.plain-list li:last-child { border-bottom: 1px solid var(--line); }
.plain-list li:hover { border-left-color: var(--accent); background: rgba(162, 83, 43, 0.04); }
.plain-list h3 { margin-bottom: 0.3em; }
.plain-list h3 a { color: var(--ink); }
.plain-list h3 a:hover { color: var(--accent-deep); }
.plain-list p { margin-bottom: 0; color: var(--ink-soft); }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; }
@media (max-width: 720px) { .two-col { grid-template-columns: 1fr; gap: 32px; } }

/* ---------------- BOOK GRID ---------------- */

.book-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  list-style: none;
  margin: 0;
  padding: 0;
}
@media (max-width: 860px) {
  .book-grid { grid-template-columns: 1fr; max-width: 360px; margin: 0 auto; gap: 40px; }
}
.book-cover {
  aspect-ratio: 2 / 3;
  background: var(--paper-deep);
  border: 1px solid var(--line);
  border-radius: 4px;
  box-shadow: 0 10px 24px rgba(43, 32, 19, 0.14);
  overflow: hidden;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px;
}
.book-cover img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.book-card h3 { margin-bottom: 0.3em; }
.book-card p { color: var(--ink-soft); margin-bottom: 0; }

/* ---------------- BUTTONS ---------------- */

.btn {
  display: inline-block;
  padding: 14px 28px;
  background: var(--accent);
  color: var(--paper);
  border-radius: 3px;
  font-weight: 700;
  font-size: 0.98rem;
  border: none;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.1s ease;
}
.btn:hover { background: var(--accent-deep); color: var(--paper); transform: translateY(-1px); }

.btn-outline {
  display: inline-block;
  padding: 13px 27px;
  background: transparent;
  color: var(--accent-deep);
  border: 1.5px solid var(--accent);
  border-radius: 3px;
  font-weight: 700;
  font-size: 0.98rem;
}
.btn-outline:hover { background: var(--accent); color: var(--paper); }

/* ---------------- FORM (contact) ---------------- */

.form-field { margin-bottom: 20px; }
.form-field label { display: block; margin-bottom: 6px; font-size: 0.9rem; color: var(--ink-soft); font-weight: 700; }
.form-field input, .form-field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1rem;
}
.form-field input:focus, .form-field textarea:focus { outline: none; border-color: var(--accent); }

/* contact form status (inline message after submit) */
.form-status { margin: 16px 0 0; min-height: 1.4em; font-size: 1rem; }
.form-status a { text-decoration: underline; }
.form-status.is-pending { color: var(--ink-soft); }
.form-status.is-success { color: var(--accent-deep); font-weight: 700; }
.form-status.is-error { color: #9b1c1c; font-weight: 700; }
.btn:disabled { opacity: 0.6; cursor: wait; transform: none; }

/* ---------------- FOOTER ---------------- */

.site-footer { background: var(--ink); color: var(--paper); padding: 44px 0 24px; margin-top: 40px; position: relative; }
.site-footer a { color: var(--paper); opacity: 0.9; }
.site-footer a:hover { opacity: 1; }
.footer-grid { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 24px; margin-bottom: 24px; }
.footer-grid h3 { font-family: var(--font-body); font-size: 0.85rem; color: var(--paper); opacity: 0.65; margin-bottom: 10px; font-weight: 700; }
.footer-nav { list-style: none; padding: 0; margin: 0; }
.footer-nav li { margin-bottom: 6px; }
.footer-bottom {
  border-top: 1px solid rgba(250, 243, 228, 0.18);
  padding-top: 18px;
  font-size: 0.85rem;
  opacity: 0.75;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.flt-signature {
  position: absolute;
  bottom: 10px;
  right: 40px;
  font-size: 12px;
  font-family: var(--font-body);
  color: #fff;
  opacity: 0.75;
  z-index: 2;
}
.flt-signature span {
  background: linear-gradient(90deg, #E14D4D, #8B1E3F);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 700;
}

/* ---------------- PLACEHOLDER NOTE ---------------- */

.demo-note {
  background: #FDF0D6;
  border: 1px dashed var(--accent);
  color: var(--accent-deep);
  padding: 12px 16px;
  border-radius: 4px;
  font-size: 0.88rem;
  margin-bottom: 32px;
}