@import url('https://fonts.googleapis.com/css2?family=Pretendard:wght@400;600&display=swap');

:root {
  --bg-gradient: linear-gradient(135deg, #4f46e5, #7c3aed, #a855f7);
  --box-bg: rgba(255, 255, 255, 0.1);
  --text-color: #e5e7eb;
  --border: rgba(255, 255, 255, 0.2);
  --btn-color: #a855f7;
  --btn-hover: #7c3aed;
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Pretendard', sans-serif;
  background: var(--bg-gradient);
  color: var(--text-color);
  display: flex;
  min-height: 100vh;
}

/* sidebar */
.sidebar {
  width: 70px;
  background: var(--box-bg);
  backdrop-filter: blur(10px);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1rem 0;
  border-right: 1px solid var(--border);
  flex-shrink: 0;
}
.sidebar a {
  margin: 1rem 0;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: all 0.3s ease;
}
.sidebar a:hover {
  background: var(--btn-color);
  box-shadow: 0 4px 10px var(--btn-hover);
  transform: scale(1.1);
}
.sidebar svg {
  width: 24px;
  height: 24px;
  stroke: var(--text-color);
}

/* content */
.content {
  flex: 1;
  max-width: 800px;
  width: 100%;
  padding: 2rem;
  margin: auto;
  display: flex;
  flex-direction: column;
  word-break: keep-all;
}

h2 {
  font-size: 1.6rem;
  margin-bottom: 1.5rem;
  text-align: center;
  word-break: keep-all;
}

/* history list */
#historyList {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* history card */
.history-card {
  background: var(--box-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.2rem;
  box-shadow: var(--shadow);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  word-break: keep-all;
}

.history-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
}

.history-card h4 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.history-card p {
  font-size: 0.9rem;
  opacity: 0.9;
}

.history-card button {
  margin-top: 0.7rem;
  background: var(--btn-color);
  color: white;
  border: none;
  border-radius: 9999px;
  padding: 0.6rem 1.2rem;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9rem;
  transition: background 0.3s ease, transform 0.2s ease;
  width: 100%;
}
.history-card button:hover {
  background: var(--btn-hover);
  transform: scale(1.05);
}

/* details */
.details {
  margin-top: 0.5rem;
  padding: 0.7rem;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 10px;
  font-size: 0.85rem;
  opacity: 0.9;
  word-break: break-word;
}

/* footer */
footer {
  text-align: center;
  font-size: 0.8rem;
  margin-top: auto;
  opacity: 0.6;
  padding: 1rem 0;
}

/* 모바일 대응 */
@media (max-width: 768px) {
  .sidebar {
    width: 60px;
  }
  .sidebar a {
    width: 36px;
    height: 36px;
  }
  .sidebar svg {
    width: 20px;
    height: 20px;
  }
  .content {
    padding: 1rem;
  }
  h2 {
    font-size: 1.4rem;
  }
}