/**
 * components.css - Buttons, Cards, Inputs, and UI widgets
 */

/* Button styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-normal);
    white-space: nowrap;
    border: none;
    outline: none;
}

.btn-primary {
    background: var(--accent-gradient);
    color: hsl(0, 0%, 100%);
    box-shadow: 0 4px 15px rgba(20, 115, 230, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(20, 115, 230, 0.35);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--bg-secondary);
    border-color: var(--text-secondary);
}

.btn-accent {
    background-color: var(--accent-light);
    color: var(--accent);
}

.btn-accent:hover {
    background-color: var(--accent);
    color: hsl(0, 0%, 100%);
}

.btn-sm {
    padding: 8px 18px;
    font-size: 0.85rem;
}

.btn-full {
    width: 100%;
}

/* Book Card Component */
.book-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    height: 100%;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

.book-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: var(--text-tertiary);
}

.book-cover-container {
    position: relative;
    width: 100%;
    aspect-ratio: 2/3;
    background-color: var(--bg-secondary);
    border-radius: var(--radius-sm);
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    margin-bottom: var(--spacing-md);
    box-shadow: inset var(--shadow-inset);
}

.book-cover-img {
    width: 75%;
    height: 85%;
    object-fit: cover;
    border-radius: 2px 8px 8px 2px;
    box-shadow: 6px 10px 18px rgba(0, 0, 0, 0.25);
    transition: transform var(--transition-slow);
}

/* Perspective Cover Tilt on Hover */
.book-card:hover .book-cover-img {
    transform: scale(1.04) rotateY(-8deg) rotate(1deg);
}

/* Badge System */
.badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 4px 10px;
    border-radius: var(--radius-xs);
    z-index: 10;
}

.badge-bestseller {
    background-color: var(--gold);
    color: hsl(0, 0%, 100%);
    box-shadow: 0 4px 10px rgba(255, 170, 0, 0.25);
}

.badge-featured {
    background: var(--accent-gradient);
    color: hsl(0, 0%, 100%);
}

.badge-category {
    align-self: flex-start;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--accent);
    margin-bottom: var(--spacing-sm);
}

.book-card-title {
    font-family: var(--font-serif);
    font-size: 1.35rem;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.book-card-author {
    font-size: 0.85rem;
    color: var(--text-tertiary);
    margin-bottom: var(--spacing-sm);
}

.book-card-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    flex-grow: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.book-card-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

/* Blog Post Card Component */
.blog-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--text-tertiary);
}

.blog-card-image-wrap {
    width: 100%;
    aspect-ratio: 16/9;
    background-color: var(--bg-secondary);
    overflow: hidden;
    position: relative;
}

.blog-card-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.blog-card:hover .blog-card-img {
    transform: scale(1.05);
}

.blog-card-content {
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.blog-card-meta {
    font-size: 0.8rem;
    color: var(--text-tertiary);
    margin-bottom: var(--spacing-sm);
    display: flex;
    gap: 12px;
}

.blog-card-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.blog-card-excerpt {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    flex-grow: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-card-link {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent);
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.blog-card-link:hover {
    color: var(--accent-hover);
}

/* Premium Form Inputs */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    font-size: 0.95rem;
    font-family: var(--font-sans);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    transition: border-color var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
    background-color: var(--card-bg);
    border-color: var(--accent);
    box-shadow: 0 0 0 4px var(--accent-glow);
    outline: none;
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

/* Glass panel */
.glass-panel {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
}

[data-theme="dark"] .glass-panel {
    background: rgba(20, 20, 24, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

/* Newsletter Box */
.newsletter-box {
    background: var(--accent-gradient);
    color: hsl(0, 0%, 100%);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.newsletter-box::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, rgba(255, 255, 255, 0) 70%);
    border-radius: var(--radius-full);
}

.newsletter-box::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0) 75%);
    border-radius: var(--radius-full);
}

.newsletter-box-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
    position: relative;
    z-index: 5;
}

.newsletter-heading {
    color: hsl(0, 0%, 100%);
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-serif);
}

.newsletter-text {
    color: hsla(0, 0%, 100%, 0.85);
    margin-bottom: 0;
}

.newsletter-form-container {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
}

.newsletter-form-row {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.newsletter-form-input {
    background: rgba(255, 255, 255, 0.9);
    border: none;
    color: hsl(240, 10%, 10%);
    padding: 14px 18px;
    border-radius: var(--radius-full);
    font-size: 0.95rem;
    font-family: var(--font-sans);
    outline: none;
}

.newsletter-form-btn {
    background-color: hsl(240, 10%, 10%);
    color: hsl(0, 0%, 100%);
    padding: 14px 24px;
    border-radius: var(--radius-full);
    border: none;
    font-weight: 700;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.newsletter-form-btn:hover {
    background-color: hsl(240, 10%, 18%);
}

@media (max-width: 800px) {
    .newsletter-box-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .newsletter-heading {
        font-size: 1.75rem;
    }
}

/* Star Rating widget */
.star-rating {
    display: inline-flex;
    gap: 4px;
    color: var(--gold);
}

.star-rating svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
}

/* Grid helper */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

@media (max-width: 992px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
    .grid-4 { grid-template-columns: 1fr; }
    .grid-3 { grid-template-columns: 1fr; }
    .grid-2 { grid-template-columns: 1fr; }
}

/* Toast alert notice */
.toast-msg {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background-color: var(--card-bg);
    color: var(--text-primary);
    border-left: 4px solid var(--accent);
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    z-index: 2000;
    transform: translateY(120%);
    opacity: 0;
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.3s;
}

.toast-msg.show {
    transform: translateY(0);
    opacity: 1;
}

.toast-msg.toast-success {
    border-left-color: var(--success);
}

.toast-msg.toast-error {
    border-left-color: var(--danger);
}