/* ==========================================================================
   Aemo Developer - Main Stylesheet
   Optimized for performance, accessibility, and modern web standards
   ========================================================================== */

/* CSS Custom Properties (Variables)
   ========================================================================== */
:root {
    /* Brand Colors */
    --primary-color: #bb86fc;
    --secondary-color: #3700b3;
    --accent-color: #03dac6;
    
    /* UI Colors */
    --background-color: #121212;
    --card-background: #1e1e1e;
    --highlight-color: #1a1a1a;
    
    /* Text Colors */
    --text-color: #ffffff;
    --text-color-light: #b3b3b3;
    --text-light: #cccccc;
    --text-dark: #1a1a1a;
    
    /* Status Colors */
    --error-color: #cf6679;
    --success-color: #00c853;
    --warning-color: #ff9800;
    --info-color: #2196f3;
    
    /* Neutral Colors */
    --neutral-light: #aaa;
    --border-color: rgba(255,255,255,0.1);
    --shadow-color: rgba(0,0,0,0.3);
    
    /* Focus & Interaction */
    --focus-color: var(--accent-color);
    --focus-shadow: 0 0 0 3px rgba(3, 218, 198, 0.3);
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Fonts */
    --font-heading: 'Orbitron', sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-ui: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-code: 'JetBrains Mono', monospace;
    
    /* Font Sizes */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
}

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

html {
    font-size: 100%; /* 16px base */
    line-height: 1.6;
}

body {
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    color: var(--text-color);
    background-color: var(--background-color);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    margin-top: 0;
    margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

/* UI Elements */
button, .filter-btn, .card-tag {
    font-family: var(--font-ui);
    font-weight: 500;
}

/* Code elements */
code, pre {
    font-family: var(--font-code);
}

/* Remove will-change from all elements to improve performance */
.animated-element {
    will-change: transform, opacity;
}

body {
    font-family: 'Orbitron', Arial, sans-serif;
    background: var(--background-color);
    color: var(--text-color);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    line-height: 1.6;
}

/* Focus Management & Accessibility
   ========================================================================== */
:focus {
    outline: 2px solid var(--focus-color);
    outline-offset: 2px;
}

:focus:not(:focus-visible) {
    outline: none;
}

:focus-visible {
    outline: 2px solid var(--focus-color);
    outline-offset: 2px;
    box-shadow: var(--focus-shadow);
}

/* Skip to main content link for screen readers */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--primary-color);
    color: var(--text-dark);
    padding: 8px;
    text-decoration: none;
    z-index: 1000;
    border-radius: 4px;
    transition: var(--transition-fast);
}

.skip-link:focus {
    top: 6px;
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

main {
    flex: 1;
    background: var(--background-color);
}

.tagline pre {
    font-family: 'Courier New', Courier, monospace;
    white-space: pre;
    font-size: 16px;
    line-height: 1.4;
    color: var(--text-color-light);
    margin: 0;
    text-shadow: 0 0 10px rgba(187,134,252,0.2);
}

.splash-section {
    background: linear-gradient(135deg, #0a0a0a, #1a1a1a);
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.splash-container {
    text-align: center;
    animation: fadeIn 2s ease-in;
    z-index: 2;
}

.logo {
    font-family: 'Orbitron', sans-serif;
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 20px rgba(187,134,252,0.3);
    letter-spacing: 2px;
    position: relative;
    animation: glow 2s ease-in-out infinite alternate;
}

.logo::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
    animation: shine 3s infinite;
}

@keyframes shine {
    0% { background-position: -200% center; }
    100% { background-position: 200% center; }
}

.tagline {
    font-size: 1.2rem;
    color: var(--text-color-light);
    opacity: 0.9;
    margin: 2rem 0;
}

/* Particles */
.particles, #particles-js {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 1;
    background: radial-gradient(circle at center, rgba(187,134,252,0.1) 0%, transparent 70%);
}

/* Extensions Section */
.extensions-section {
    padding: 4rem 2rem;
    min-height: 100vh;
}

.section-title {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--text-color);
    font-family: var(--font-heading);
    font-size: var(--font-size-4xl);
    font-weight: 600;
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.filter-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.5rem 1.5rem;
    border: 1px solid var(--border-color);
    border-radius: 25px;
    background: var(--card-background);
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.3s;
    font-family: var(--font-ui);
    font-weight: 500;
    font-size: var(--font-size-base);
}
.filter-btn:hover, .filter-btn.active {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: #000;
    border-color: transparent;
}

.search-input {
    display: block;
    width: 100%;
    max-width: 500px;
    margin: 0 auto 2rem;
    padding: 0.8rem 1.2rem;
    border: 2px solid var(--border-color);
    border-radius: 25px;
    background: var(--card-background);
    color: var(--text-color);
    font-size: 1rem;
    transition: all 0.3s;
}
.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(187,134,252,0.2);
}
.search-input::placeholder {
    color: var(--text-color-light);
}

.card-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    padding: 1rem;
}

.card {
    background: var(--card-background);
    border-radius: 12px;
    overflow: hidden;
    position: relative;
    box-shadow: 0 4px 6px var(--shadow-color);
    border: 1px solid var(--border-color);
    opacity: 0;
    transform: translateY(20px);
    animation: cardAppear 0.5s ease forwards;
}
.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 20px var(--shadow-color);
    border-color: var(--primary-color);
}

.price-tag {
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-weight: bold;
    font-size: 0.9rem;
    z-index: 2;
    box-shadow: 0 2px 4px var(--shadow-color);
}
.price-tag.free {
    background: linear-gradient(135deg, #00c853, #00e676);
    color: #000;
}
.price-tag.paid {
    background: linear-gradient(135deg, #bb86fc, #3700b3);
    color: #fff;
}

.card-content {
    padding: 1.5rem;
    position: relative;
    z-index: 1;
    opacity: 0;
    transform: translateY(10px);
    animation: contentAppear 0.4s ease 0.3s forwards;
}
.card-title {
    margin: 0 0 0.75rem;
    color: var(--text-color);
    font-family: var(--font-heading);
    font-size: var(--font-size-xl);
    font-weight: 600;
    line-height: 1.3;
    opacity: 0;
    transform: translateX(-10px);
    animation: titleAppear 0.4s ease 0.4s forwards;
}
.card-subtitle {
    margin: 0;
    color: var(--text-color-light);
    font-family: var(--font-body);
    font-size: var(--font-size-sm);
    line-height: 1.5;
    min-height: 3em;
    opacity: 0;
    transform: translateX(10px);
    animation: subtitleAppear 0.4s ease 0.5s forwards;
}
.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}
.card-category {
    font-size: 0.8rem;
    color: var(--text-color-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: rgba(255,255,255,0.05);
    padding: 0.3rem 0.8rem;
    border-radius: 12px;
}
.card-button {
    display: inline-flex;
    align-items: center;
    padding: 0.6rem 1.2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: #000;
    text-decoration: none;
    border-radius: 25px;
    transition: all 0.3s;
    font-weight: 500;
    box-shadow: 0 2px 4px var(--shadow-color);
    opacity: 0;
    transform: translateY(10px);
    animation: buttonAppear 0.4s ease 0.6s forwards;
}
.card-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px var(--shadow-color);
    background: linear-gradient(135deg, var(--accent-color), var(--primary-color));
}
.card-button::after {
    content: '→';
    margin-left: 0.5rem;
    transition: transform 0.3s;
}
.card-button:hover::after {
    transform: translateX(4px);
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-top: 1.2rem;
    justify-content: flex-start;
    align-items: center;
    position: relative;
    padding-top: 1.1rem;
}
.card-tags::before {
    content: "";
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, #333 20%, #333 80%, transparent 100%);
}
.card-tag {
    display: inline-block;
    padding: 0.18em 0.95em;
    border-radius: 1.2em;
    background: #23232b;
    color: #bdbdbd;
    font-family: var(--font-ui);
    font-size: 0.82rem;
    font-weight: 500;
    border: 1px solid #333;
    box-shadow: 0 1px 2px rgba(0,0,0,0.04);
    margin-top: 0.1em;
    letter-spacing: 0.2px;
    transition: background 0.2s, color 0.2s, border 0.2s;
}
.card-tag.new-tag {
    background: linear-gradient(90deg, #00e676 0%, #00bfae 100%);
    color: #111;
    border: none;
    font-weight: bold;
    box-shadow: 0 2px 8px rgba(0,200,83,0.10);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Contact Section */
.contact-section {
    background: var(--highlight-color);
    padding: 4rem 2rem;
    text-align: center;
    flex: 1;
    margin-bottom: 0;
}
.contact-section .section-title {
    margin-bottom: 3rem;
    font-size: 2.5rem;
}
.contact-options {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 2rem;
}
.contact-card {
    background: var(--card-background);
    padding: 1.5rem;
    border-radius: 15px;
    width: 200px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    transition: transform 0.3s, box-shadow 0.3s;
    cursor: pointer;
}
.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0,0,0,0.2);
}
.contact-icon {
    margin-bottom: 1rem;
}
.icon-img {
    width: 50px;
    height: 50px;
    object-fit: contain;
}
.contact-title {
    color: white;
    font-size: 1.2rem;
    font-weight: bold;
    display: block;
    margin-top: 1rem;
}

footer {
    background: var(--card-background);
    padding: 1.5rem;
    text-align: center;
    margin-top: auto;
    position: relative;
    z-index: 10;
}
.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}
.footer-content p {
    color: var(--text-color-light);
    font-size: 0.9rem;
}

/* Loading Screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #0a0a0a;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease-out;
}

.loading-screen.hidden {
    opacity: 0;
    pointer-events: none;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    border-top-color: #00ffcc;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes glow {
    from { text-shadow: 0 0 10px rgba(187,134,252,0.3); }
    to { text-shadow: 0 0 20px rgba(187,134,252,0.5); }
}
@keyframes bounce {
    0%,20%,50%,80%,100% { transform: translateY(0); }
    40% { transform: translateY(-20px); }
    60% { transform: translateY(-10px); }
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes cardAppear {
    0% { opacity: 0; transform: translateY(20px); }
    100% { opacity: 1; transform: translateY(0); }
}
@keyframes contentAppear {
    0% { opacity: 0; transform: translateY(10px); }
    100% { opacity: 1; transform: translateY(0); }
}
@keyframes titleAppear {
    0% { opacity: 0; transform: translateX(-10px); }
    100% { opacity: 1; transform: translateX(0); }
}
@keyframes subtitleAppear {
    0% { opacity: 0; transform: translateX(10px); }
    100% { opacity: 1; transform: translateX(0); }
}
@keyframes buttonAppear {
    0% { opacity: 0; transform: translateY(10px); }
    100% { opacity: 1; transform: translateY(0); }
}

/* Responsive Design */
@media (max-width: 768px) {
    .logo { font-size: 3rem; }
    .section-title { font-size: 2rem; }
    .card-container { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
    .card-title { font-size: 1.2rem; }
    .card-subtitle { font-size: 0.9rem; }
    .contact-card { width: 160px; }
    .filter-btn { padding: 0.4rem 1rem; font-size: 0.9rem; }
}

/* Hide loading and scroll indicator elements */
.loading-screen, .loading-spinner, .loading-text, .scroll-indicator, .arrow {
    display: none;
}

/* Load More Button */
.load-more-container {
    display: flex;
    justify-content: center;
    margin-top: 2rem;
    padding: 1rem;
}
.load-more-btn {
    padding: 0.8rem 2rem;
    border: none;
    border-radius: 25px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}
.load-more-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}
.load-more-btn:active {
    transform: translateY(0);
}