:root {
  --bg: #fcfcfc;
  --text-main: #1a1a1a;
  --text-dim: #707070;
  --accent: #000000;
  --card-bg: #ffffff;
  --border: #ececec;
  --danger-light: rgba(255, 59, 48, 0.08);
  --danger-text: #ff3b30;
  --edit-light: rgba(0, 122, 255, 0.08);
  --edit-text: #007aff;
  --secondary-btn: #f5f5f7;
}

@font-face {
  font-family: 'sf-pro';
  src: url(fonts/sf-pro-regular.otf);
}

@font-face {
  font-family: 'telegraf';
  src: url(fonts/TelegrafRegular.otf);
}

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

body {
  font-family: 'sf-pro', sans-serif;
  background-color: var(--bg);
  color: var(--text-main);
  padding: 80px 20px;
  line-height: 1.6;
}

header h1 {
  font-family: 'telegraf', sans-serif;
  font-size: 4rem;
  text-align: center;
  text-transform: lowercase;
  letter-spacing: -3px;
  margin-bottom: 60px;
}

main {
  max-width: 1000px;
  margin: 0 auto;
}

section {
  background: var(--card-bg);
  padding: 40px;
  border-radius: 24px;
  border: 1px solid var(--border);
  margin-bottom: 40px;
}

h2 {
  font-family: 'telegraf', sans-serif;
  font-size: 1.6rem;
  margin-bottom: 30px;
  letter-spacing: -0.5px;
}

form div {
  margin-bottom: 24px;
}

label {
  display: block;
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  margin-bottom: 12px;
  letter-spacing: 1px;
  color: var(--text-dim);
}

input[type="text"],
input[type="number"] {
  width: 100%;
  padding: 18px 20px;
  border: 1.5px solid var(--border);
  border-radius: 14px;
  font-family: 'sf-pro', sans-serif;
  font-size: 1rem;
  background-color: #fafafa;
  transition: all 0.3s ease;
}

input:focus {
  outline: none;
  border-color: var(--accent);
  background-color: #fff;
}

.checkbox-wrapper {
  display: flex;
  align-items: center;
  gap: 12px;
}

.checkbox-wrapper label {
  margin-bottom: 0;
  text-transform: none;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-main);
}

button {
  font-family: 'telegraf', sans-serif;
  cursor: pointer;
  border: none;
  border-radius: 14px;
  transition: all 0.3s cubic-bezier(0.2, 1, 0.3, 1);
  font-weight: bold;
}

.form-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 30px;
}

#bookFormSubmit,
#searchSubmit {
  background: var(--accent);
  color: white;
  width: 100%;
  padding: 18px;
  font-size: 1rem;
  margin-top: 15px; /* JARAK AGAR TIDAK MEPET */
}

.btn-secondary {
  background: var(--secondary-btn);
  color: var(--text-main);
  padding: 16px;
  font-size: 0.9rem;
}

button:hover {
  opacity: 0.8;
  transform: translateY(-2px);
}

.shelves-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

[data-testid="bookItem"] {
  background: #fff;
  border: 1px solid var(--border);
  padding: 24px;
  border-radius: 18px;
  margin-bottom: 20px;
  animation: fadeIn 0.6s ease forwards;
}

[data-testid="bookItemTitle"] {
  font-family: 'telegraf', sans-serif;
  font-size: 1.3rem;
  margin-bottom: 8px;
}

[data-testid="bookItemAuthor"],
[data-testid="bookItemYear"] {
  font-size: 0.9rem;
  color: var(--text-dim);
}

[data-testid="bookItem"] div {
  margin-top: 30px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

[data-testid="bookItem"] button {
  padding: 12px 16px;
  font-size: 0.7rem;
  flex: 1;
  min-width: 120px;
}

[data-testid="bookItemIsCompleteButton"] { background: var(--secondary-btn); color: var(--text-main); }
[data-testid="bookItemDeleteButton"] { background: var(--danger-light); color: var(--danger-text); }
[data-testid="bookItemEditButton"] { background: var(--edit-light); color: var(--edit-text); }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(15px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 850px) {
  .shelves-container { grid-template-columns: 1fr; }
  header h1 { font-size: 3rem; }
}