/* ============================================================
   День лицеиста — страница альбома 1830-х
   ============================================================ */

:root {
  --paper:        #f3e7cf;
  --paper-deep:   #e8d8b6;
  --paper-edge:   #dcc79c;
  --ink:          #3a2c1a;
  --ink-soft:     #5c4a32;
  --ink-faint:    #7a6748;
  --gold:         #a8843c;
  --gold-bright:  #c9a24e;
  --gold-pale:    #d9c48a;
  --rule:         #b79a63;
  --serif-body:   "Old Standard TT", "Times New Roman", Georgia, serif;
  --serif-title:  "Playfair Display", "Old Standard TT", Georgia, serif;
  --sheet-max:    42rem;
  --ease:         cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--serif-body);
  color: var(--ink);
  background-color: #cdb990;
  background-image:
    radial-gradient(ellipse at 50% 0%, rgba(255, 248, 230, 0.35), transparent 60%),
    radial-gradient(ellipse at 50% 100%, rgba(90, 66, 32, 0.28), transparent 65%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3'/%3E%3C/filter%3E%3Crect width='240' height='240' filter='url(%23n)' opacity='0.14'/%3E%3C/svg%3E");
  min-height: 100vh;
  display: flex;
  justify-content: center;
  padding: 1.1rem 0.7rem 2.5rem;
  line-height: 1.7;
}

/* ---------- Лист ---------- */

.sheet-wrap { width: 100%; max-width: var(--sheet-max); }

.sheet {
  position: relative;
  background-color: var(--paper);
  background-image:
    radial-gradient(ellipse at 20% 15%, rgba(255, 252, 240, 0.55), transparent 55%),
    radial-gradient(ellipse at 85% 90%, rgba(180, 150, 95, 0.18), transparent 50%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='p'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23p)' opacity='0.09'/%3E%3C/svg%3E");
  border: 1px solid var(--paper-edge);
  box-shadow:
    0 1px 0 rgba(255, 250, 235, 0.6) inset,
    0 14px 40px rgba(50, 34, 12, 0.35),
    0 3px 10px rgba(50, 34, 12, 0.25);
  padding: 3.4rem 1.3rem 2.2rem;
  overflow: hidden;
}

/* Внутренняя золотая рамка-линейка */
.sheet::before {
  content: "";
  position: absolute;
  inset: 0.72rem;
  border: 1px solid var(--gold-pale);
  outline: 1px solid rgba(168, 132, 60, 0.35);
  outline-offset: 2.5px;
  pointer-events: none;
}

/* ---------- Виньетки и водяной знак ---------- */

.corner {
  position: absolute;
  width: 40px;
  height: 40px;
  color: var(--gold);
  opacity: 0.75;
  pointer-events: none;
}
.corner--tl { top: 14px; left: 14px; }
.corner--tr { top: 14px; right: 14px; transform: scaleX(-1); }
.corner--bl { bottom: 14px; left: 14px; transform: scaleY(-1); }
.corner--br { bottom: 14px; right: 14px; transform: scale(-1, -1); }

.watermark-quill {
  position: absolute;
  right: -2.5rem;
  bottom: -3rem;
  width: 190px;
  height: auto;
  color: var(--gold);
  opacity: 0.09;
  transform: rotate(-12deg);
  pointer-events: none;
}

/* ---------- Шапка ---------- */

.masthead {
  position: relative;
  text-align: center;
  margin-bottom: 1.9rem;
  z-index: 1;
}

.masthead__kicker {
  margin: 0 0 0.9rem;
  font-family: var(--serif-title);
  font-size: 0.72rem;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.facade {
  width: 74px;
  height: auto;
  color: var(--gold);
  opacity: 0.85;
  display: inline-block;
}

/* ---------- Блок ---------- */

.block {
  position: relative;
  z-index: 1;
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
  will-change: opacity, transform;
}

.block.is-leaving {
  opacity: 0;
  transform: translateY(-6px);
  transition-duration: 0.3s;
}

.block__title {
  font-family: var(--serif-title);
  font-weight: 500;
  font-size: clamp(1.55rem, 5.6vw, 2.15rem);
  line-height: 1.25;
  text-align: center;
  margin: 0 0 0.5rem;
  color: var(--ink);
  letter-spacing: 0.01em;
}

/* Заголовок с золотой линейкой под ним */
.block__title::after {
  content: "";
  display: block;
  width: 58px;
  height: 1px;
  margin: 0.95rem auto 0;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}

.block__ornament {
  display: block;
  width: 108px;
  height: auto;
  color: var(--gold);
  margin: 0.35rem auto 1.15rem;
  opacity: 0.8;
}

.block__text {
  font-size: clamp(1rem, 3.9vw, 1.09rem);
  margin: 0 auto;
  max-width: 36rem;
  text-align: justify;
  text-indent: 1.6em;
  color: var(--ink-soft);
  white-space: pre-line;
  hyphens: auto;
}

/* Инициал — только в главном блоке */
.block__text--initial::first-letter {
  font-family: var(--serif-title);
  font-size: 3.1em;
  line-height: 0.82;
  float: left;
  padding: 0.08em 0.14em 0 0;
  color: var(--gold);
}

/* ---------- Вклеенная фотография ---------- */

.plate {
  margin: 1.9rem auto 0;
  max-width: 32rem;
}

.plate__frame {
  display: block;
  padding: 9px;
  background-color: #fbf5e6;
  background-image: linear-gradient(140deg, #fdf8ec 0%, #f0e3c6 60%, #e6d5ae 100%);
  border: 1px solid var(--gold-pale);
  box-shadow:
    0 1px 0 rgba(255, 253, 245, 0.9) inset,
    0 2px 5px rgba(90, 65, 25, 0.28),
    0 10px 22px rgba(70, 48, 18, 0.2);
  position: relative;
  transform: rotate(-0.5deg);
}

/* Уголки, будто фотография вставлена в прорези паспарту */
.plate__frame::before,
.plate__frame::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border-color: var(--gold);
  opacity: 0.55;
}
.plate__frame::before {
  top: 4px;
  left: 4px;
  border-top: 1px solid var(--gold);
  border-left: 1px solid var(--gold);
}
.plate__frame::after {
  bottom: 4px;
  right: 4px;
  border-bottom: 1px solid var(--gold);
  border-right: 1px solid var(--gold);
}

.plate__img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 60vh;
  object-fit: contain;
  border: 1px solid rgba(120, 92, 40, 0.35);
  filter: sepia(0.14) saturate(0.92) contrast(1.02) brightness(1.01);
}

.plate__caption {
  margin: 0.7rem 0 0;
  font-family: var(--serif-body);
  font-style: italic;
  font-size: 0.88rem;
  line-height: 1.5;
  text-align: center;
  color: var(--ink-faint);
  letter-spacing: 0.01em;
}

/* ---------- Кнопки ---------- */

.block__buttons {
  display: grid;
  gap: 0.65rem;
  margin: 2rem 0 0;
}

.btn {
  appearance: none;
  font-family: var(--serif-title);
  font-size: 0.95rem;
  font-weight: 400;
  letter-spacing: 0.07em;
  color: var(--ink);
  background-color: rgba(255, 250, 236, 0.5);
  background-image: linear-gradient(180deg, rgba(255,253,245,0.7), rgba(226, 205, 160, 0.25));
  border: 1px solid var(--gold-pale);
  box-shadow:
    0 1px 0 rgba(255, 252, 240, 0.7) inset,
    0 1px 3px rgba(90, 65, 25, 0.14);
  padding: 0.72rem 1.1rem;
  cursor: pointer;
  text-align: center;
  line-height: 1.4;
  transition: background-color 0.25s var(--ease), border-color 0.25s var(--ease),
              color 0.25s var(--ease), box-shadow 0.25s var(--ease), transform 0.15s var(--ease);
}

.btn:hover,
.btn:focus-visible {
  border-color: var(--gold);
  color: #2c2010;
  background-color: rgba(240, 224, 186, 0.65);
  box-shadow:
    0 1px 0 rgba(255, 252, 240, 0.8) inset,
    0 2px 7px rgba(90, 65, 25, 0.2);
  outline: none;
}

.btn:focus-visible {
  box-shadow:
    0 0 0 2px var(--paper),
    0 0 0 3.5px var(--gold-bright);
}

.btn:active { transform: translateY(1px); }

/* Кнопка «Свернуть» */
.btn--back {
  background-color: transparent;
  background-image: none;
  border-color: transparent;
  box-shadow: none;
  color: var(--ink-faint);
  font-style: italic;
  font-family: var(--serif-body);
  font-size: 1rem;
  letter-spacing: 0.03em;
  margin-top: 0.35rem;
  padding: 0.5rem;
}

.btn--back:hover,
.btn--back:focus-visible {
  background-color: transparent;
  background-image: none;
  border-color: transparent;
  box-shadow: none;
  color: var(--gold);
}

/* Штор-эффект кнопок при появлении блока */
.block.is-entering .btn,
.block.is-entering .block__title,
.block.is-entering .block__text,
.block.is-entering .plate,
.block.is-entering .block__ornament {
  opacity: 0;
  animation: rise-in 0.55s var(--ease) forwards;
}
.block.is-entering .block__title    { animation-delay: 0.05s; }
.block.is-entering .block__ornament { animation-delay: 0.14s; }
.block.is-entering .block__text     { animation-delay: 0.20s; }
.block.is-entering .plate           { animation-delay: 0.24s; }
.block.is-entering .block__buttons .btn:nth-child(1) { animation-delay: 0.30s; }
.block.is-entering .block__buttons .btn:nth-child(2) { animation-delay: 0.37s; }
.block.is-entering .block__buttons .btn:nth-child(3) { animation-delay: 0.44s; }
.block.is-entering .block__buttons .btn:nth-child(4) { animation-delay: 0.51s; }
.block.is-entering .block__buttons .btn:nth-child(5) { animation-delay: 0.58s; }
.block.is-entering .block__buttons .btn:nth-child(6) { animation-delay: 0.65s; }

@keyframes rise-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---------- Подвал ---------- */

.colophon {
  margin-top: 2.4rem;
  text-align: center;
  position: relative;
  z-index: 1;
}

.ornament {
  width: 110px;
  height: auto;
  color: var(--gold);
  opacity: 0.7;
  display: inline-block;
  margin-bottom: 0.5rem;
}

.colophon__text {
  margin: 0;
  font-family: var(--serif-title);
  font-style: italic;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--ink-faint);
}

/* ---------- Планшет и ПК ---------- */

@media (min-width: 560px) {
  body { padding: 2.2rem 1.2rem 3.5rem; }

  .sheet { padding: 4.2rem 3.4rem 2.8rem; }

  .corner { width: 46px; height: 46px; }
  .corner--tl { top: 18px; left: 18px; }
  .corner--tr { top: 18px; right: 18px; }
  .corner--bl { bottom: 18px; left: 18px; }
  .corner--br { bottom: 18px; right: 18px; }

  .watermark-quill { width: 240px; right: -1.5rem; bottom: -3.5rem; }

  .block__buttons {
    grid-template-columns: 1fr 1fr;
    gap: 0.8rem 1rem;
  }

  .btn { padding: 0.8rem 1.2rem; font-size: 1rem; }

  .btn--back { grid-column: 1 / -1; }
}

@media (min-width: 900px) {
  .sheet { padding: 5rem 4.5rem 3.2rem; }
  .facade { width: 88px; }
}

/* ---------- Меньше движения ---------- */

@media (prefers-reduced-motion: reduce) {
  .block,
  .block.is-leaving,
  .block.is-entering { transition: none; }

  .block.is-entering .btn,
  .block.is-entering .block__title,
  .block.is-entering .block__text,
  .block.is-entering .plate,
  .block.is-entering .block__ornament {
    animation: none;
    opacity: 1;
  }

  .btn { transition: none; }
}