/*
Theme Name: SmartBird Haven
Theme URI: https://smartbirdcam.com
Author: Antigravity Team
Author URI: https://smartbirdcam.com
Description: A bespoke, ultra-fast, modern WordPress theme designed specifically for smart bird feeder cameras, AI wildlife identification, and backyard birdwatching.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.7
Requires PHP: 7.4
License: GNU General Public License v2 or later
Text Domain: smartbird-haven
*/

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Outfit:wght@500;600;700;800&display=swap');

/* ==========================================================================
   CSS Variables & Design Tokens
   ========================================================================== */
:root {
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Smart Bird Camera Color Palette */
    --color-primary: #0c4a6e;        /* Deep Sky Slate */
    --color-primary-dark: #082f49;   /* Midnight Navy */
    --color-primary-light: #0369a1;  /* Ocean Blue */
    
    --color-accent: #0284c7;         /* Tech Cyan Sky */
    --color-accent-hover: #0369a1;   /* Deep Blue */
    --color-accent-light: #e0f2fe;   /* Ice Blue tint */
    
    --color-nature: #16a34a;         /* Feeder Garden Green */
    --color-nature-light: #dcfce7;   /* Mint tint */
    --color-amber: #f59e0b;          /* Sunflower Gold */
    --color-amber-light: #fef3c7;    /* Warm Gold tint */
    
    --color-sand: #f8fafc;           /* Clean Modern Canvas */
    --color-card-bg: #ffffff;
    
    --color-text-main: #0f172a;
    --color-text-muted: #475569;
    --color-text-light: #94a3b8;
    
    --color-border: #e2e8f0;
    --color-border-light: #f1f5f9;
    
    --shadow-sm: 0 2px 4px rgba(12, 74, 110, 0.04);
    --shadow-md: 0 6px 16px rgba(12, 74, 110, 0.08);
    --shadow-lg: 0 16px 32px rgba(12, 74, 110, 0.12);
    
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-full: 9999px;
    
    --container-max: 1200px;
    --content-max: 840px;
    --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==========================================================================
   Reset & Base Styles
   ========================================================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-body);
    color: var(--color-text-main);
    background-color: var(--color-sand);
    line-height: 1.65;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    width: 100%;
    max-width: var(--container-max);
    margin-left: auto;
    margin-right: auto;
    padding-left: 24px;
    padding-right: 24px;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.site-header {
    background: #ffffff;
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 76px;
}

.site-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--color-primary);
    letter-spacing: -0.02em;
}

.brand-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: #ffffff;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 10px rgba(2, 132, 199, 0.25);
}

.brand-icon svg {
    width: 24px;
    height: 24px;
    fill: currentColor;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 28px;
}

.site-nav ul {
    display: flex;
    list-style: none;
    gap: 24px;
}

.site-nav a {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-text-muted);
}

.site-nav a:hover,
.site-nav .current-menu-item > a {
    color: var(--color-accent);
}

.header-cta {
    background: var(--color-primary);
    color: #ffffff !important;
    padding: 10px 22px;
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}

.header-cta:hover {
    background: var(--color-accent);
    transform: translateY(-1px);
}

/* ==========================================================================
   Hero Section (Homepage)
   ========================================================================== */
.hero-banner {
    padding: 60px 0 40px;
    background: radial-gradient(circle at 80% 20%, #e0f2fe 0%, rgba(248, 250, 252, 0) 50%),
                radial-gradient(circle at 10% 80%, #dcfce7 0%, rgba(248, 250, 252, 0) 50%);
}

.hero-card {
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 50px 48px;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.hero-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent), var(--color-nature), var(--color-amber));
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: var(--color-accent-light);
    color: var(--color-accent-hover);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 20px;
}

.hero-badge .pulse {
    width: 8px;
    height: 8px;
    background: var(--color-accent);
    border-radius: 50%;
    box-shadow: 0 0 0 rgba(2, 132, 199, 0.4);
    animation: pulse-ring 2s infinite;
}

@keyframes pulse-ring {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(2, 132, 199, 0.6); }
    70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(2, 132, 199, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(2, 132, 199, 0); }
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 2.75rem;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: 18px;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--color-text-muted);
    max-width: 780px;
    margin-bottom: 32px;
    line-height: 1.6;
}

.hero-features {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    padding-top: 24px;
    border-top: 1px solid var(--color-border-light);
}

.hero-feat-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-primary);
}

.hero-feat-item svg {
    width: 18px;
    height: 18px;
    color: var(--color-nature);
}

/* ==========================================================================
   Category Filter Bar
   ========================================================================== */
.filter-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    overflow-x: auto;
    padding: 24px 0;
    margin-bottom: 24px;
    scrollbar-width: none;
}

.filter-bar::-webkit-scrollbar {
    display: none;
}

.filter-pill {
    padding: 8px 18px;
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text-muted);
    white-space: nowrap;
}

.filter-pill:hover,
.filter-pill.active {
    background: var(--color-primary);
    color: #ffffff;
    border-color: var(--color-primary);
}

/* ==========================================================================
   Post Grid & Article Cards
   ========================================================================== */
.post-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-bottom: 60px;
}

.article-card {
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.article-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
}

.card-image-wrap {
    position: relative;
    width: 100%;
    padding-top: 58%;
    background: #e2e8f0;
    overflow: hidden;
}

.card-image-wrap img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.article-card:hover .card-image-wrap img {
    transform: scale(1.05);
}

.card-cat-badge {
    position: absolute;
    top: 14px;
    left: 14px;
    background: rgba(12, 74, 110, 0.92);
    color: #ffffff;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    backdrop-filter: blur(6px);
}

.card-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.card-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.82rem;
    color: var(--color-text-light);
    margin-bottom: 12px;
    font-weight: 500;
}

.card-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.35;
    margin-bottom: 12px;
    letter-spacing: -0.01em;
}

.article-card:hover .card-title {
    color: var(--color-accent);
}

.card-excerpt {
    font-size: 0.92rem;
    color: var(--color-text-muted);
    line-height: 1.55;
    margin-bottom: 20px;
    flex-grow: 1;
}

.card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid var(--color-border-light);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-accent);
}

.card-footer svg {
    width: 16px;
    height: 16px;
    transition: transform 0.2s ease;
}

.article-card:hover .card-footer svg {
    transform: translateX(4px);
}

/* ==========================================================================
   Single Article Layout
   ========================================================================== */
.single-post-header {
    padding: 48px 0 32px;
    background: #ffffff;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 40px;
}

.breadcrumbs {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--color-text-light);
    margin-bottom: 20px;
}

.breadcrumbs a:hover {
    color: var(--color-accent);
}

.single-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
}

.single-meta-bar {
    display: flex;
    align-items: center;
    gap: 20px;
    font-size: 0.9rem;
    color: var(--color-text-muted);
    padding-bottom: 8px;
}

.single-featured-wrap {
    max-width: var(--content-max);
    margin: 0 auto 40px;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.single-featured-wrap img {
    width: 100%;
    max-height: 520px;
    object-fit: cover;
}

.single-content {
    max-width: var(--content-max);
    margin: 0 auto 60px;
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-text-main);
}

.single-content h2 {
    font-family: var(--font-heading);
    font-size: 1.85rem;
    font-weight: 700;
    color: var(--color-primary);
    margin: 40px 0 16px;
    line-height: 1.25;
}

.single-content h3 {
    font-family: var(--font-heading);
    font-size: 1.45rem;
    font-weight: 700;
    color: var(--color-primary);
    margin: 32px 0 14px;
}

.single-content p {
    margin-bottom: 24px;
}

.single-content ul, .single-content ol {
    margin: 0 0 24px 28px;
}

.single-content li {
    margin-bottom: 8px;
}

.single-content img {
    border-radius: var(--radius-md);
    margin: 28px 0;
}

.single-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 32px 0;
    background: #ffffff;
    border-radius: var(--radius-sm);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}

.single-content th, .single-content td {
    padding: 14px 18px;
    text-align: left;
    border-bottom: 1px solid var(--color-border-light);
    font-size: 0.95rem;
}

.single-content th {
    background: var(--color-primary);
    color: #ffffff;
    font-weight: 700;
}

.single-content tr:nth-child(even) {
    background: #f8fafc;
}

/* ==========================================================================
   Editorial Callout Boxes (Shortcodes)
   ========================================================================== */
.eco-box {
    margin: 32px 0;
    padding: 24px;
    border-radius: var(--radius-md);
    background: #ffffff;
    border-left: 5px solid var(--color-accent);
    box-shadow: var(--shadow-sm);
    display: flex;
    gap: 16px;
}

.eco-box.buyer-alert {
    border-left-color: var(--color-amber);
    background: #fffdf5;
}

.eco-box.ai-note {
    border-left-color: var(--color-nature);
    background: #f0fdf4;
}

.eco-box-icon {
    font-size: 1.5rem;
    line-height: 1;
}

.eco-box-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--color-primary);
    margin-bottom: 6px;
}

.eco-box-desc {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    margin: 0 !important;
}

/* ==========================================================================
   Author Card & Next Article Navigation
   ========================================================================== */
.author-card {
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 28px;
    margin: 48px auto;
    max-width: var(--content-max);
    display: flex;
    gap: 20px;
    align-items: center;
}

.author-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--color-accent-light);
    color: var(--color-accent-hover);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.6rem;
    flex-shrink: 0;
}

.author-info h4 {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    color: var(--color-primary);
    margin-bottom: 4px;
}

.author-info p {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin: 0;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
    background: var(--color-primary-dark);
    color: #cbd5e1;
    padding: 64px 0 32px;
    margin-top: 80px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 48px;
}

.footer-brand h3 {
    font-family: var(--font-heading);
    color: #ffffff;
    font-size: 1.4rem;
    margin-bottom: 12px;
}

.footer-brand p {
    font-size: 0.92rem;
    line-height: 1.6;
    color: #94a3b8;
    max-width: 320px;
}

.footer-col h4 {
    color: #ffffff;
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 18px;
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: 10px;
}

.footer-col a {
    color: #94a3b8;
    font-size: 0.9rem;
}

.footer-col a:hover {
    color: #ffffff;
}

.footer-bottom {
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: #64748b;
}

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

@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }
    .hero-card {
        padding: 32px 24px;
    }
    .post-grid {
        grid-template-columns: 1fr;
    }
    .site-nav ul {
        display: none;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .single-title {
        font-size: 1.85rem;
    }
}