/* ============================================
   Plant Species Pages - Shared Responsive Styles
   Used by Sabatia, Sambucus, Sarracenia, Sassafras,
   Schizaea, Schwalbea, Scirpus, Sisyrinchium, Smilax,
   Solanum, Sparganium, Spiraea, Spiranthes and Symplocarpus species detail pages
   ============================================ */

:root {
    --primary-color: #1b5e20;
    --secondary-color: #2e7d32;
    --accent-color: #ff6f00;
    --text-color: #2c3e50;
    --light-bg: #f1f8f4;
    --border-color: #b3e5b3;
    --image-border: #4caf50;
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --line-height: 1.6;
    --letter-spacing: 0.3px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --mobile: 576px;
    --tablet: 768px;
    --desktop: 992px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    font-family: var(--font-family);
    line-height: var(--line-height);
    color: var(--text-color);
    background-color: #FFC680;
    background-image: url('../images/backgrn1.gif');
    background-attachment: fixed;
    background-size: cover;
    background-repeat: repeat;
    background-position: center;
    min-height: 100vh;
    letter-spacing: var(--letter-spacing);
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(135deg, rgba(241, 248, 244, 0.85) 0%, rgba(200, 235, 200, 0.85) 100%);
    pointer-events: none;
    z-index: -1;
}

body::after {
    content: '';
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background-image: url('../images/backgrn1.gif');
    background-attachment: fixed;
    background-size: cover;
    background-repeat: repeat;
    background-position: center;
    pointer-events: none;
    z-index: -2;
    opacity: 0.6;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: var(--spacing-md);
    background: white;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
}

@media (max-width: 768px) {
    .container { padding: var(--spacing-sm); border-radius: 0; margin: 0; }
}

.header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 3px solid var(--primary-color);
}

.header h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

.common-name { font-size: 2.2rem; color: var(--primary-color); font-weight: 700; }

.scientific-name {
    font-size: 1.6rem;
    color: var(--accent-color);
    font-style: italic;
    font-weight: 600;
    margin: var(--spacing-sm) 0;
}

.family {
    font-size: 1.15rem;
    color: var(--secondary-color);
    font-weight: 600;
    margin: var(--spacing-sm) 0 0 0;
}

.header .subtitle { color: var(--secondary-color); font-size: 1rem; font-weight: 500; margin-top: var(--spacing-sm); }

@media (max-width: 768px) {
    .header h1, .common-name { font-size: 1.8rem; }
    .scientific-name { font-size: 1.3rem; }
    .family { font-size: 1rem; }
}

@media (max-width: 480px) {
    .header h1, .common-name { font-size: 1.4rem; }
    .scientific-name { font-size: 1.1rem; }
    .family { font-size: 0.9rem; }
}

.navigation {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md) 0;
}

.nav-link {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 4px;
}

.nav-link:hover { color: var(--accent-color); background-color: rgba(46, 125, 50, 0.1); transform: translateY(-2px); }
.nav-link:active { color: var(--primary-color); }
.nav-separator { color: var(--border-color); margin: 0 var(--spacing-xs); }

.footer-nav { margin-top: var(--spacing-lg); padding-top: var(--spacing-lg); border-top: 2px solid var(--light-bg); }

@media (max-width: 576px) {
    .navigation { font-size: 0.85rem; gap: 2px; padding: var(--spacing-sm) 0; }
    .nav-link { padding: var(--spacing-xs) 4px; }
    .nav-separator { margin: 0 2px; }
}

.divider {
    border: none;
    height: 2px;
    background: linear-gradient(to right, transparent, var(--border-color), transparent);
    margin: var(--spacing-lg) 0;
}

.main-content { line-height: 1.8; }
.gallery-section { margin-bottom: var(--spacing-lg); }

.image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.image-item {
    margin: 0;
    padding: var(--spacing-md);
    background: linear-gradient(135deg, rgba(46, 125, 50, 0.05) 0%, rgba(76, 175, 80, 0.05) 100%);
    border: 2px solid var(--image-border);
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.image-item:hover { box-shadow: 0 8px 24px rgba(27, 94, 32, 0.15); transform: translateY(-4px); }

.image-link { display: block; margin-bottom: var(--spacing-md); overflow: hidden; border-radius: 4px; text-decoration: none; }

.plant-image { width: 100%; height: auto; display: block; transition: transform 0.4s ease; cursor: pointer; }

.image-link:hover .plant-image { transform: scale(1.05); }

figcaption { color: var(--text-color); font-size: 0.9rem; text-align: center; font-weight: 500; line-height: 1.4; }

.description-section {
    padding: var(--spacing-md);
    background: linear-gradient(135deg, rgba(76, 175, 80, 0.05) 0%, rgba(100, 200, 100, 0.05) 100%);
    border-left: 4px solid var(--primary-color);
    border-radius: 4px;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    color: var(--primary-color);
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.section-title::before {
    content: '';
    display: inline-block;
    width: 8px; height: 8px;
    background-color: var(--secondary-color);
    border-radius: 50%;
}

.description-section p { color: var(--text-color); margin-bottom: var(--spacing-sm); font-size: 0.95rem; line-height: 1.8; }
.description-section p:last-child { margin-bottom: 0; }

.resource-list { list-style: none; margin-top: var(--spacing-sm); }
.resource-list li { margin-bottom: var(--spacing-xs); }

.inline-link {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s ease;
    border-bottom: 1px solid var(--secondary-color);
}

.inline-link:hover { color: var(--accent-color); border-bottom-color: var(--accent-color); }

.no-image-note { text-align: center; color: var(--secondary-color); font-style: italic; padding: var(--spacing-lg); }

.copyright-note { text-align: center; font-size: 0.85rem; font-style: italic; margin-top: var(--spacing-sm); }

.footer {
    text-align: center;
    padding: var(--spacing-lg) var(--spacing-md);
    border-top: 2px solid var(--light-bg);
    color: var(--text-color);
    font-size: 0.85rem;
}

.footer-link { color: var(--secondary-color); text-decoration: none; font-weight: 600; transition: all 0.2s ease; }
.footer-link:hover { color: var(--accent-color); text-decoration: underline; }

.skip-to-main {
    position: absolute;
    top: -40px; left: 0;
    background: var(--primary-color);
    color: white;
    padding: 8px;
    text-decoration: none;
    z-index: 100;
    border-radius: 0 0 4px 0;
}

.skip-to-main:focus { top: 0; }

.visually-hidden {
    position: absolute;
    width: 1px; height: 1px;
    padding: 0; margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

a:focus, button:focus, [tabindex]:focus {
    outline: 3px solid var(--secondary-color);
    outline-offset: 2px;
    border-radius: 2px;
}

@media (max-width: 768px) {
    .image-grid { grid-template-columns: 1fr; gap: var(--spacing-md); }
    .description-section { padding: var(--spacing-sm); margin-bottom: var(--spacing-md); }
    .section-title { font-size: 1.15rem; }
}

@media (max-width: 576px) {
    .container { padding: var(--spacing-sm); box-shadow: none; }
    .header { margin-bottom: var(--spacing-md); padding-bottom: var(--spacing-md); }
    .description-section { padding: var(--spacing-sm); border-left-width: 3px; margin-bottom: var(--spacing-md); }
    .image-item { padding: var(--spacing-sm); }
    .section-title { font-size: 1rem; }
    .image-grid { gap: var(--spacing-sm); }
}

@media print {
    body { background: white; }
    body::before, body::after { display: none; }
    .container { box-shadow: none; border-radius: 0; max-width: 100%; }
    .navigation { display: none; }
    .divider { background: var(--border-color); }
    .image-item { page-break-inside: avoid; box-shadow: none; }
    .image-link { display: none; }
    .plant-image { display: block; margin: var(--spacing-sm) 0; max-width: 100%; }
}

@media (prefers-color-scheme: dark) {
    :root {
        --primary-color: #81c784;
        --secondary-color: #a5d6a7;
        --text-color: #e0e0e0;
        --light-bg: #2c3e50;
    }
    body { background-color: #1a1a1a; }
    body::before { background: linear-gradient(135deg, rgba(26, 26, 26, 0.9) 0%, rgba(40, 80, 40, 0.9) 100%); }
    .container { background: #1e1e1e; box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3); }
    .image-item { background: linear-gradient(135deg, rgba(76, 175, 80, 0.1), rgba(76, 175, 80, 0.05)); border-color: rgba(165, 214, 167, 0.4); }
    .description-section { background: linear-gradient(135deg, rgba(76, 175, 80, 0.1), rgba(76, 175, 80, 0.05)); }
    figcaption { color: #e0e0e0; }
}