* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #f4f2ee;
  font-family: "Poppins", sans-serif;
  color: #111;
}

button {
  font: inherit;
}

/* ---------- Header ---------- */

.top-bar {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 2.5rem 1rem 1rem;
}

.menu-wrap {
  position: relative;
  margin-bottom: 0.75rem;
}

.hamburger-btn {
  background: #fff;
  border: 2px solid #111;
  border-radius: 999px;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.15s ease;
}

.hamburger-btn:hover {
  transform: rotate(-8deg) scale(1.05);
}

.burger-icon {
  width: 50px;
  height: 50px;
  object-fit: contain;
  display: block;
}

.site-title {
  font-family: "Archivo Black", sans-serif;
  font-size: clamp(3rem, 12vw, 6.5rem);
  letter-spacing: -0.02em;
  line-height: 0.9;
  margin: 0.5rem 0 0;
  text-transform: uppercase;
  text-align: center;
}

/* ---------- Speech bubble menu ---------- */

.speech-bubble {
  position: absolute;
  top: calc(100% + 18px);
  left: 50%;
  transform: translate(-50%, -8px) scale(0.85);
  transform-origin: top center;
  background: #fff;
  border: 2px solid #111;
  border-radius: 20px;
  padding: 0.9rem 1.4rem;
  display: flex;
  flex-direction: row;
  gap: 1.4rem;
  white-space: nowrap;
  box-shadow: 0 6px 0 rgba(17, 17, 17, 0.15);
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
  transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s;
  z-index: 50;
}

.speech-bubble::before {
  content: "";
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 18px;
  height: 18px;
  background: #fff;
  border-left: 2px solid #111;
  border-top: 2px solid #111;
}

.speech-bubble.open {
  opacity: 1;
  pointer-events: auto;
  visibility: visible;
  transform: translate(-50%, 0) scale(1);
}

.speech-bubble a {
  text-decoration: none;
  color: #111;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.3rem 0;
  border-bottom: 2px solid transparent;
  transition: border-color 0.15s ease;
}

.speech-bubble a:hover {
  border-color: #d97b29;
}

/* ---------- Card stack ---------- */

.stack {
  max-width: 720px;
  margin: 4rem auto 6rem;
  padding: 0 1.25rem;
  display: flex;
  flex-direction: column;
}

.card {
  display: block;
  position: relative;
  overflow: hidden;
  text-decoration: none;
  color: #171412;
  font-family: "Anton", sans-serif;
  font-weight: 400;
  font-size: clamp(1.3rem, 3.6vw, 2.1rem);
  letter-spacing: 0.01em;
  padding: 1.3rem 2.2rem 2.7rem;
  border-radius: 18px;
  margin-top: -1.8rem;
  box-shadow:
    0 1px 2px rgba(0, 0, 0, 0.06),
    0 10px 20px -6px rgba(0, 0, 0, 0.16);
  transform: rotate(var(--tilt)) translateX(var(--nudge));
  z-index: var(--z);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.card:first-child {
  margin-top: 0;
}

.card-title,
.card-description {
  display: block;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.card-title {
  padding-right: 4.25rem;
}

.card-description {
  position: absolute;
  left: 2.2rem;
  right: 4.25rem;
  top: 50%;
  font-family: "Poppins", sans-serif;
  font-size: clamp(0.82rem, 1.7vw, 1rem);
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  opacity: 0;
  transform: translateY(calc(-50% + 8px));
}

.card-index {
  position: absolute;
  top: 14px;
  right: 18px;
  font-family: "Poppins", sans-serif;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: rgba(17, 17, 17, 0.32);
}

.card:hover {
  box-shadow:
    0 2px 4px rgba(0, 0, 0, 0.08),
    0 16px 28px -8px rgba(0, 0, 0, 0.22);
  animation: rock 0.42s ease-in-out 1;
}

.card:hover .card-title {
  opacity: 0;
  transform: translateY(-8px);
}

.card:hover .card-description {
  opacity: 1;
  transform: translateY(-50%);
}

@keyframes rock {
  0%, 100% {
    transform: rotate(var(--tilt)) translateX(var(--nudge));
  }
  25% {
    transform: rotate(calc(var(--tilt) - 1.5deg)) translateX(var(--nudge)) translateY(-2px);
  }
  75% {
    transform: rotate(calc(var(--tilt) + 1.5deg)) translateX(var(--nudge)) translateY(-2px);
  }
}

/* ---------- About accordion ---------- */

.about-accordion {
  max-width: 640px;
  margin: 0 auto 5rem;
  padding: 0 1.25rem;
  display: grid;
  gap: 1rem;
}

.accordion-item {
  scroll-margin-top: 2rem;
}

.accordion-trigger {
  width: 100%;
  border: 2px solid #111;
  border-radius: 18px;
  background: #fff;
  color: #111;
  padding: 1.25rem 1.5rem 1.35rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow:
    0 1px 2px rgba(0, 0, 0, 0.06),
    0 10px 20px -6px rgba(0, 0, 0, 0.16);
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.accordion-trigger:hover {
  transform: translateY(-1px);
  box-shadow:
    0 2px 4px rgba(0, 0, 0, 0.08),
    0 16px 28px -8px rgba(0, 0, 0, 0.22);
}

.accordion-trigger[aria-expanded="true"] {
  background: #fff7cf;
}

.accordion-trigger span {
  font-family: "Archivo Black", sans-serif;
  text-transform: uppercase;
  font-size: 1.8rem;
  line-height: 1;
  text-align: center;
}

.accordion-panel {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transform: translateY(-6px);
  transition: max-height 0.22s ease, opacity 0.18s ease, transform 0.18s ease, margin 0.22s ease;
}

.accordion-panel.open {
  opacity: 1;
  transform: translateY(0);
  margin-top: 0.75rem;
}

.accordion-panel p {
  margin: 0;
  padding: 1rem 1.25rem 1.15rem;
  background: rgba(255, 255, 255, 0.72);
  border: 2px solid #111;
  border-radius: 18px;
  font-size: 1.05rem;
  line-height: 1.5;
  text-align: center;
}

@media (max-width: 640px) {
  .accordion-trigger {
    padding: 0.9rem 1.1rem;
  }

  .accordion-trigger span {
    font-size: 1.35rem;
  }

  .accordion-panel p {
    text-align: left;
  }
}