/**
 * PMN RSS Feed - Airbnb Inspired Styles
 * Modern, minimal, clean design
 */

/* ============================================
   CSS Variables - Airbnb Color Palette
   ============================================ */
:root {
    --pmnrss-primary: #D93B40;
    --pmnrss-primary-hover: #B52D32;
    --pmnrss-primary-light: #FFE8E9;
    --pmnrss-text-primary: #222222;
    --pmnrss-text-secondary: #717171;
    --pmnrss-text-light: #B0B0B0;
    --pmnrss-background: #FFFFFF;
    --pmnrss-background-secondary: #F7F7F7;
    --pmnrss-border: #EBEBEB;
    --pmnrss-shadow: rgba(0, 0, 0, 0.08);
    --pmnrss-shadow-hover: rgba(0, 0, 0, 0.15);
    --pmnrss-radius: 12px;
    --pmnrss-radius-sm: 8px;
    --pmnrss-transition: all 0.2s ease;
    --pmnrss-font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

/* ============================================
   Container
   ============================================ */
.pmnrss-container {
    font-family: var(--pmnrss-font-family);
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
    box-sizing: border-box;
}

.pmnrss-container *,
.pmnrss-container *::before,
.pmnrss-container *::after {
    box-sizing: border-box;
}

/* Screen Reader Only - for accessibility */
.pmnrss-container .screen-reader-text {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ============================================
   Header Section
   ============================================ */
.pmnrss-header {
    background: linear-gradient(135deg, var(--pmnrss-background) 0%, var(--pmnrss-background-secondary) 100%);
    border: 1px solid var(--pmnrss-border);
    border-radius: var(--pmnrss-radius);
    padding: 24px;
    margin-bottom: 32px;
    box-shadow: 0 2px 8px var(--pmnrss-shadow);
}

.pmnrss-header-content {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.pmnrss-header-info {
    flex: 1;
    min-width: 200px;
}

.pmnrss-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 600;
    color: var(--pmnrss-text-primary);
    margin: 0 0 6px 0;
}

.pmnrss-icon {
    width: 24px;
    height: 24px;
    color: var(--pmnrss-primary);
}

.pmnrss-subtitle {
    font-size: 14px;
    color: var(--pmnrss-text-secondary);
    margin: 0;
}

.pmnrss-header-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
}

/* URL Input Box */
.pmnrss-url-box {
    display: flex;
    align-items: stretch;
    background: var(--pmnrss-background);
    border: 1px solid var(--pmnrss-border);
    border-radius: var(--pmnrss-radius-sm);
    overflow: hidden;
    transition: var(--pmnrss-transition);
}

.pmnrss-url-box:focus-within {
    border-color: var(--pmnrss-text-primary);
    box-shadow: 0 0 0 2px rgba(34, 34, 34, 0.1);
}

.pmnrss-url-input {
    border: none;
    background: transparent;
    padding: 10px 14px;
    font-size: 13px;
    color: var(--pmnrss-text-secondary);
    width: 220px;
    outline: none;
    font-family: var(--pmnrss-font-family);
}

.pmnrss-url-input:focus {
    color: var(--pmnrss-text-primary);
}

.pmnrss-copy-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 14px;
    background: var(--pmnrss-background-secondary);
    border: none;
    border-left: 1px solid var(--pmnrss-border);
    color: var(--pmnrss-text-primary);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--pmnrss-transition);
    font-family: var(--pmnrss-font-family);
}

.pmnrss-copy-btn:hover {
    background: var(--pmnrss-border);
}

.pmnrss-copy-btn svg {
    width: 16px;
    height: 16px;
}

.pmnrss-copy-btn.copied {
    background: #00A699;
    color: white;
    border-color: #00A699;
}

/* Subscribe Button */
.pmnrss-subscribe-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: var(--pmnrss-primary);
    color: white;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--pmnrss-radius-sm);
    transition: var(--pmnrss-transition);
    box-shadow: 0 2px 8px rgba(255, 90, 95, 0.3);
}

.pmnrss-subscribe-btn:hover {
    background: var(--pmnrss-primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(255, 90, 95, 0.4);
    color: white;
    text-decoration: none;
}

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

.pmnrss-subscribe-btn svg {
    width: 18px;
    height: 18px;
}

/* ============================================
   Posts Grid Layout
   ============================================ */
.pmnrss-posts {
    display: grid;
    gap: 24px;
}

.pmnrss-grid {
    grid-template-columns: repeat(3, 1fr);
}

.pmnrss-grid.pmnrss-cols-2 {
    grid-template-columns: repeat(2, 1fr);
}

.pmnrss-grid.pmnrss-cols-4 {
    grid-template-columns: repeat(4, 1fr);
}

/* List Layout */
.pmnrss-list {
    grid-template-columns: 1fr;
}

.pmnrss-list .pmnrss-card {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 24px;
}

.pmnrss-list .pmnrss-card-image {
    aspect-ratio: 16 / 10;
}

/* ============================================
   Post Card
   ============================================ */
.pmnrss-card {
    background: var(--pmnrss-background);
    border-radius: var(--pmnrss-radius);
    overflow: hidden;
    box-shadow: 0 2px 8px var(--pmnrss-shadow);
    transition: var(--pmnrss-transition);
    border: 1px solid var(--pmnrss-border);
}

.pmnrss-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px var(--pmnrss-shadow-hover);
}

/* Card Image */
.pmnrss-card-image {
    display: block;
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: var(--pmnrss-background-secondary);
}

.pmnrss-thumbnail {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.pmnrss-card:hover .pmnrss-thumbnail {
    transform: scale(1.05);
}

.pmnrss-no-image {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--pmnrss-background-secondary) 0%, var(--pmnrss-border) 100%);
}

.pmnrss-no-image svg {
    width: 48px;
    height: 48px;
    color: var(--pmnrss-text-light);
}

/* Card Content */
.pmnrss-card-content {
    padding: 20px;
}

.pmnrss-card-meta {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--pmnrss-text-secondary);
    margin-bottom: 10px;
}

.pmnrss-meta-separator {
    color: var(--pmnrss-text-light);
}

.pmnrss-author {
    font-weight: 500;
}

.pmnrss-card-title {
    font-size: 16px;
    font-weight: 600;
    line-height: 1.4;
    margin: 0 0 10px 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.pmnrss-card-title a {
    color: var(--pmnrss-text-primary);
    text-decoration: none;
    transition: var(--pmnrss-transition);
}

.pmnrss-card-title a:hover {
    color: var(--pmnrss-primary);
}

.pmnrss-card-excerpt {
    font-size: 14px;
    line-height: 1.6;
    color: var(--pmnrss-text-secondary);
    margin: 0 0 16px 0;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Read More Link */
.pmnrss-read-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 600;
    color: var(--pmnrss-text-primary);
    text-decoration: none;
    transition: var(--pmnrss-transition);
}

.pmnrss-read-more:hover {
    color: var(--pmnrss-primary);
    text-decoration: none;
}

.pmnrss-read-more svg {
    width: 16px;
    height: 16px;
    transition: transform 0.2s ease;
}

.pmnrss-read-more:hover svg {
    transform: translateX(4px);
}

/* ============================================
   No Posts Message
   ============================================ */
.pmnrss-no-posts {
    text-align: center;
    padding: 60px 20px;
    background: var(--pmnrss-background-secondary);
    border-radius: var(--pmnrss-radius);
    border: 1px dashed var(--pmnrss-border);
}

.pmnrss-no-posts svg {
    width: 48px;
    height: 48px;
    color: var(--pmnrss-text-light);
    margin-bottom: 16px;
}

.pmnrss-no-posts p {
    font-size: 16px;
    color: var(--pmnrss-text-secondary);
    margin: 0;
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
    .pmnrss-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .pmnrss-grid.pmnrss-cols-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .pmnrss-container {
        padding: 16px;
    }

    .pmnrss-header {
        padding: 20px;
    }

    .pmnrss-header-content {
        flex-direction: column;
        align-items: stretch;
    }

    .pmnrss-header-actions {
        flex-direction: column;
    }

    .pmnrss-url-box {
        width: 100%;
    }

    .pmnrss-url-input {
        flex: 1;
        width: auto;
    }

    .pmnrss-subscribe-btn {
        width: 100%;
        justify-content: center;
    }

    .pmnrss-grid,
    .pmnrss-grid.pmnrss-cols-2,
    .pmnrss-grid.pmnrss-cols-4 {
        grid-template-columns: 1fr;
    }

    .pmnrss-list .pmnrss-card {
        grid-template-columns: 1fr;
    }

    .pmnrss-posts {
        gap: 16px;
    }
}

@media (max-width: 480px) {
    .pmnrss-card-content {
        padding: 16px;
    }

    .pmnrss-card-title {
        font-size: 15px;
    }

    .pmnrss-card-excerpt {
        font-size: 13px;
        -webkit-line-clamp: 2;
    }
}

/* ============================================
   Animations
   ============================================ */
@keyframes pmnrss-fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.pmnrss-card {
    animation: pmnrss-fadeIn 0.4s ease forwards;
}

.pmnrss-card:nth-child(1) { animation-delay: 0.05s; }
.pmnrss-card:nth-child(2) { animation-delay: 0.1s; }
.pmnrss-card:nth-child(3) { animation-delay: 0.15s; }
.pmnrss-card:nth-child(4) { animation-delay: 0.2s; }
.pmnrss-card:nth-child(5) { animation-delay: 0.25s; }
.pmnrss-card:nth-child(6) { animation-delay: 0.3s; }
.pmnrss-card:nth-child(7) { animation-delay: 0.35s; }
.pmnrss-card:nth-child(8) { animation-delay: 0.4s; }
.pmnrss-card:nth-child(9) { animation-delay: 0.45s; }
.pmnrss-card:nth-child(10) { animation-delay: 0.5s; }

/* ============================================
   Dark Mode Support (Optional)
   ============================================ */
@media (prefers-color-scheme: dark) {
    .pmnrss-container.pmnrss-dark-mode {
        --pmnrss-text-primary: #F7F7F7;
        --pmnrss-text-secondary: #B0B0B0;
        --pmnrss-text-light: #717171;
        --pmnrss-background: #1A1A1A;
        --pmnrss-background-secondary: #262626;
        --pmnrss-border: #333333;
        --pmnrss-shadow: rgba(0, 0, 0, 0.3);
        --pmnrss-shadow-hover: rgba(0, 0, 0, 0.5);
    }
}