:root { 
    --bg:            #f3f3ee;        /* Background */
    --surface:       #ced9cb;        /* Primary light — card backgrounds */
    --surface-alt:   #cecece;        /* Secondary — subtle surfaces */
    --border:        #abc0a6;        /* Primary — borders & dividers */
    --border-soft:   #d6dfd3;        /* Lighter border variant */
    --green:         #7c8f77;        /* Primary — ivy green, CTAs */
    --green-dark:    #5a6e56;        /* Hover state for green */
    --text:          #2e2e2b;        /* Near-black body text */
    --muted:         #949494;        /* Secondary — captions, meta */
    --muted-dark:    #6b6b6b;        /* Slightly darker muted */
    --red:           #8b3a3a;        /* Errors / destructive */
    --red-hover:     #6e2c2c;
    --green-success: #4a6741;        /* Success messages */
 
    /* Typography */
    --font-display:  Georgia, serif;
    --font-body:     system-ui, sans-serif;
 
    /* Font sizes */
    --size-hero:     48px;
    --size-headline: 36px;
    --size-sub:      28px;
    --size-body:     16px;
    --size-caption:  14px;
}
 
/* ----- Base ----- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
 
body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-body);
    font-size: var(--size-body);
    min-height: 100vh;
    padding-bottom: 80px;
    line-height: 1.6;
}
 
/* ----- Header ----- */
header {
    padding: 48px 40px 32px;
    border-bottom: 2px solid var(--border);
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    background: var(--bg);
}
 
header h1 {
    font-family: var(--font-display);
    font-size: var(--size-hero);
    font-weight: 700;
    letter-spacing: -0.01em;
    line-height: 1;
    color: var(--text);
}
 
header h1 span {
    color: var(--green);
    font-style: italic;
}
 
header a {
    color: var(--muted);
    text-decoration: none;
    font-family: var(--font-body);
    font-size: var(--size-caption);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    transition: color 0.2s;
}
 
header a:hover { color: var(--green); }
 
/* ----- Main layout ----- */
main {
    max-width: 900px;
    margin: 0 auto;
    padding: 48px 24px 0;
}
 
/* ----- Loading / Empty states ----- */
#loading {
    text-align: center;
    color: var(--muted);
    padding: 80px 0;
    font-size: var(--size-caption);
    letter-spacing: 0.05em;
    font-family: var(--font-body);
}
 
#empty {
    display: none;
    text-align: center;
    padding: 80px 0;
}
 
#empty p {
    font-family: var(--font-display);
    font-size: var(--size-sub);
    color: var(--muted);
    font-style: italic;
}
 
#empty a {
    display: inline-block;
    margin-top: 16px;
    color: var(--green);
    text-decoration: none;
    font-size: var(--size-caption);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-family: var(--font-body);
}
 

 
/* ----- Buttons ----- */
.btn {
    padding: 8px 18px;
    border-radius: 4px;
    font-family: var(--font-body);
    font-size: var(--size-caption);
    font-weight: 500;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.2s;
}
 
.btn-edit {
    background: transparent;
    border-color: var(--green);
    color: var(--green);
}
 
.btn-edit:hover {
    background: var(--green);
    color: var(--bg);
}
 
.btn-delete {
    background: transparent;
    border-color: #c0a0a0;
    color: var(--red);
}
 
.btn-delete:hover {
    background: var(--red);
    color: #fff;
    border-color: var(--red);
}
 
.btn-save {
    background: var(--green);
    color: var(--bg);
    border-color: var(--green);
}
 
.btn-save:hover {
    background: var(--green-dark);
    border-color: var(--green-dark);
}
 
.btn-cancel {
    background: transparent;
    border-color: var(--border);
    color: var(--muted);
}
 
.btn-cancel:hover {
    border-color: var(--muted-dark);
    color: var(--text);
}
 
/* ----- Review text (shared) ----- */
.review-text {
    font-size: var(--size-body);
    line-height: 1.75;
    color: var(--muted-dark);
}
 
/* =========================================================
   SEARCH PAGE (index)
   ========================================================= */
 
input[type="text"] {
    padding: 10px 14px;
    width: 300px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: #fff;
    color: var(--text);
    font-family: var(--font-body);
    font-size: var(--size-body);
    transition: border-color 0.2s;
}
 
input[type="text"]:focus {
    outline: none;
    border-color: var(--green);
}
 
.results {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 30px;
}
 
.book {
    border: 1px solid var(--border);
    padding: 20px;
    border-radius: 6px;
    background: #fff;
    transition: box-shadow 0.2s, border-color 0.2s;
}
 
.book:hover {
    border-color: var(--green);
    box-shadow: 0 4px 16px rgba(124, 143, 119, 0.15);
}
 
.book img {
    max-width: 100%;
    height: auto;
    margin-bottom: 12px;
    border-radius: 3px;
}
 
.book h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--text);
}
 
.meta {
    font-size: var(--size-caption);
    color: var(--muted);
    line-height: 1.8;
}
 
.description {
    font-size: var(--size-caption);
    color: var(--muted-dark);
    margin-top: 10px;
    max-height: 120px;
    overflow: hidden;
    line-height: 1.6;
}
 
/* Review modal (search page) */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(46, 46, 43, 0.5);
    z-index: 200;
    align-items: center;
    justify-content: center;
}
 
.modal-box {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    width: 340px;
    padding: 28px;
    position: relative;
}
 
.modal-box h3 {
    font-family: var(--font-display);
    font-size: 1.4rem;
    margin-bottom: 16px;
    color: var(--text);
}
 
.modal-box textarea {
    width: 100%;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text);
    font-family: var(--font-body);
    font-size: var(--size-body);
    padding: 10px 14px;
    resize: vertical;
    min-height: 100px;
    transition: border-color 0.2s;
}
 
.modal-box textarea:focus {
    outline: none;
    border-color: var(--green);
}
 
.modal-box label {
    font-size: var(--size-caption);
    color: var(--muted-dark);
    margin-right: 6px;
}
 
.closeBtn {
    position: absolute;
    top: 14px;
    right: 18px;
    font-size: 1.2rem;
    cursor: pointer;
    color: var(--muted);
    line-height: 1;
    transition: color 0.2s;
}
 
.closeBtn:hover { color: var(--text); }
 
.submit-review, .saveBtn, .openBtn {
    display: inline-block;
    margin-top: 12px;
    padding: 8px 18px;
    border-radius: 4px;
    font-family: var(--font-body);
    font-size: var(--size-caption);
    font-weight: 500;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.2s;
}
 
.saveBtn {
    background: var(--green);
    color: var(--bg);
    border-color: var(--green);
    margin-right: 6px;
}
 
.saveBtn:hover {
    background: var(--green-dark);
    border-color: var(--green-dark);
}
 
.openBtn {
    background: transparent;
    border-color: var(--green);
    color: var(--green);
}
 
.openBtn:hover {
    background: var(--green);
    color: var(--bg);
}
 
.submit-review {
    background: var(--green);
    color: var(--bg);
    border-color: var(--green);
}
 
.submit-review:hover {
    background: var(--green-dark);
    border-color: var(--green-dark);
}
 
/* =========================================================
   MY REVIEWS PAGE
   ========================================================= */
 
.review-card {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 24px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 24px;
    margin-bottom: 20px;
    transition: border-color 0.2s, box-shadow 0.2s;
}
 
.review-card:hover {
    border-color: var(--green);
    box-shadow: 0 4px 16px rgba(124, 143, 119, 0.12);
}
 
.review-card img {
    width: 80px;
    height: 112px;
    object-fit: cover;
    border-radius: 3px;
    display: block;
}
 
.no-cover {
    width: 80px;
    height: 112px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 3px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.65rem;
    color: var(--muted);
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-family: var(--font-body);
}
 
.review-body { min-width: 0; }
 
.book-title {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 2px;
    text-decoration: none;
    color: var(--text);
    transition: color 0.2s;
    display: block;
}
 
.book-title:hover { color: var(--green); }
 
.book-authors {
    font-size: var(--size-caption);
    color: var(--muted);
    margin-bottom: 12px;
    font-family: var(--font-body);
}
 
.review-meta {
    font-size: var(--size-caption);
    color: var(--muted);
    margin-bottom: 16px;
    font-family: var(--font-body);
}
 
.card-actions {
    display: flex;
    gap: 10px;
}
 
/* Inline edit form */
.edit-form {
    display: none;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-soft);
}
 
.edit-form.open { display: block; }
 
.edit-stars {
    display: flex;
    flex-direction: row-reverse;
    justify-content: flex-end;
    gap: 6px;
    margin-bottom: 12px;
}
 
.edit-stars label {
    cursor: pointer;
    font-size: 1.3rem;
    color: var(--border);
    transition: color 0.15s;
}
 
.edit-stars input[type="radio"] { display: none; }
 
.edit-stars label:hover,
.edit-stars label:hover ~ label,
.edit-stars input[type="radio"]:checked ~ label { color: var(--green); }
 
.edit-textarea {
    width: 100%;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text);
    font-family: var(--font-body);
    font-size: var(--size-body);
    padding: 10px 14px;
    resize: vertical;
    min-height: 90px;
    margin-bottom: 12px;
    transition: border-color 0.2s;
}
 
.edit-textarea:focus {
    outline: none;
    border-color: var(--green);
}
 
.edit-actions { display: flex; gap: 8px; }
 
.edit-msg {
    font-size: var(--size-caption);
    margin-top: 8px;
    min-height: 18px;
    font-family: var(--font-body);
}
 
/* Confirm delete overlay */
.confirm-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(46, 46, 43, 0.6);
    z-index: 100;
    align-items: center;
    justify-content: center;
}
 
.confirm-overlay.open { display: flex; }
 
.confirm-box {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 36px 40px;
    max-width: 380px;
    width: 90%;
    text-align: center;
    box-shadow: 0 8px 32px rgba(46, 46, 43, 0.15);
}
 
.confirm-box h3 {
    font-family: var(--font-display);
    font-size: 1.4rem;
    margin-bottom: 10px;
    color: var(--text);
}
 
.confirm-box p {
    color: var(--muted);
    font-size: var(--size-body);
    margin-bottom: 28px;
    line-height: 1.55;
    font-family: var(--font-body);
}
 
.confirm-actions { display: flex; gap: 12px; justify-content: center; }
 
/* =========================================================
   BOOK DETAIL PAGE
   ========================================================= */
 
.book-hero {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: 40px;
    margin-bottom: 56px;
    align-items: start;
}
 
.book-hero img {
    width: 140px;
    border-radius: 4px;
    box-shadow: 4px 8px 24px rgba(124, 143, 119, 0.25);
    display: block;
}
 
.no-cover-lg {
    width: 140px;
    height: 196px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--muted);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-family: var(--font-body);
}
 
.book-info h1 {
    font-family: var(--font-display);
    font-size: clamp(1.6rem, 3.5vw, 2.4rem);
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 8px;
    color: var(--text);
}
 
.book-info .authors {
    color: var(--muted);
    font-size: var(--size-body);
    margin-bottom: 24px;
    font-family: var(--font-body);
}
 
.avg-rating-block {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 20px;
}
 
.avg-number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--green);
    line-height: 1;
}
 
.avg-stars { margin-bottom: 4px; }
 
.avg-count {
    font-size: var(--size-caption);
    color: var(--muted);
    font-family: var(--font-body);
}
 
.book-meta {
    font-size: var(--size-caption);
    color: var(--muted);
    line-height: 1.9;
    font-family: var(--font-body);
}
 
.section-title {
    font-family: var(--font-display);
    font-size: var(--size-headline);
    font-weight: 700;
    font-style: italic;
    border-bottom: 2px solid var(--border);
    padding-bottom: 12px;
    margin-bottom: 28px;
    color: var(--text);
}
 
.review-item {
    padding: 24px 0;
    border-bottom: 1px solid var(--border-soft);
}
 
.review-item:last-child { border-bottom: none; }
 
.reviewer-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}
 
.reviewer-name {
    font-weight: 600;
    font-size: var(--size-body);
    font-family: var(--font-body);
    color: var(--text);
}
 
.review-date {
    font-size: var(--size-caption);
    color: var(--muted);
    font-family: var(--font-body);
}
 
.no-reviews {
    text-align: center;
    padding: 48px 0;
    color: var(--muted);
    font-style: italic;
    font-family: var(--font-display);
    font-size: 1.1rem;
}
 
/* ----- Responsive ----- */
@media (max-width: 520px) {
    .book-hero { grid-template-columns: 1fr; }
    header { padding: 24px 20px; }
    header h1 { font-size: 2rem; }
    main { padding-top: 36px; }
    .confirm-box { padding: 28px 24px; }
}