* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-green: #00ff41;
    --secondary-blue: #00ccff;
    --dark-bg: #0a0a0a;
    --darker-bg: #050505;
    --card-bg: rgba(0, 255, 65, 0.05);
    --border-color: rgba(0, 255, 65, 0.2);
    --text-primary: #ffffff;
    --text-secondary: #cccccc;
    --text-muted: #888888;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, var(--darker-bg) 0%, var(--dark-bg) 100%);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
}

/* Animated Background */
.animated-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.1;
}

.animated-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, var(--primary-green) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, var(--secondary-blue) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, var(--primary-green) 0%, transparent 50%);
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    33% { transform: translateY(-20px) rotate(1deg); }
    66% { transform: translateY(10px) rotate(-1deg); }
}

/* Header */
.header {
    position: sticky;
    top: 0;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(45deg, var(--primary-green), var(--secondary-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 30px rgba(0, 255, 65, 0.3);
}

.subtitle {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

/* Language Selector */
.language-selector {
    position: relative;
}

.language-btn {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    color: var(--primary-green);
    padding: 0.75rem 1.25rem;
    border-radius: 50px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: all 0.3s ease;
    font-weight: 600;
}

.language-btn:hover {
    background: rgba(0, 255, 65, 0.1);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 255, 65, 0.2);
}

.flag {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.flag.th {
    background-image: url('flag_thailand.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.flag.us {
    background-image: url('flag_usa.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
}

.flag.us::after {
    display: none;
}

.language-dropdown {
    position: absolute;
    top: 120%;
    right: 0;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(20px);
    border: 2px solid var(--border-color);
    border-radius: 15px;
    min-width: 180px;
    display: none;
    z-index: 1001;
    overflow: hidden;
}

.language-dropdown.show {
    display: block;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.language-option {
    padding: 1rem 1.25rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 500;
}

.language-option:hover {
    background: var(--card-bg);
    color: var(--primary-green);
}

/* Main Container */
.main-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Hero Section */
.hero-section {
    text-align: center;
    padding: 6rem 0 4rem;
    position: relative;
}

.hero-title {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 900;
    margin-bottom: 1.5rem;
    background: linear-gradient(45deg, var(--primary-green), var(--secondary-blue), var(--primary-green));
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 3s ease-in-out infinite;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Stats Section */
.stats-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin: 4rem 0;
    padding: 3rem 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.stat-item {
    text-align: center;
    padding: 1.5rem;
}

.stat-number {
    font-size: 3rem;
    font-weight: 900;
    color: var(--primary-green);
    display: block;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 1.1rem;
    font-weight: 500;
}

/* Categories Grid */
.categories-section {
    padding: 4rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 3rem;
    color: var(--primary-green);
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.category-card {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 25px;
    padding: 3rem 2rem;
    text-align: center;
    transition: all 0.4s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.category-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(0, 255, 65, 0.1), transparent);
    transform: rotate(45deg);
    transition: all 0.6s ease;
    opacity: 0;
}

.category-card:hover::before {
    opacity: 1;
    transform: rotate(45deg) translate(50%, 50%);
}

.category-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 25px 50px rgba(0, 255, 65, 0.2);
    border-color: var(--secondary-blue);
}

.mascot-container {
    width: 150px;
    height: 150px;
    margin: 0 auto 2rem;
    border-radius: 50%;
    overflow: hidden;
    position: relative;
    z-index: 2;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    transition: all 0.4s ease;
}

.category-card:hover .mascot-container {
    transform: scale(1.1);
    box-shadow: 0 15px 40px rgba(0, 255, 65, 0.3);
}

.mascot-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.category-title {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: var(--primary-green);
    position: relative;
    z-index: 2;
}

.category-description {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 1.1rem;
    position: relative;
    z-index: 2;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    z-index: 2000;
    overflow-y: auto;
}

.modal-content {
    background: linear-gradient(135deg, rgba(10, 10, 10, 0.95) 0%, rgba(20, 20, 20, 0.95) 100%);
    margin: 2rem auto;
    padding: 3rem;
    border: 2px solid var(--border-color);
    border-radius: 25px;
    max-width: 95%;
    width: 1200px;
    position: relative;
    backdrop-filter: blur(20px);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 2px solid var(--border-color);
}

.modal-title {
    font-size: 2.5rem;
    color: var(--primary-green);
    display: flex;
    align-items: center;
    gap: 1rem;
    font-weight: 800;
}

.close-btn {
    background: none;
    border: none;
    color: #ff4444;
    font-size: 2.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 0.5rem;
    border-radius: 50%;
}

.close-btn:hover {
    transform: scale(1.2);
    background: rgba(255, 68, 68, 0.1);
    text-shadow: 0 0 15px #ff4444;
}

/* Coming Soon */
.coming-soon {
    text-align: center;
    padding: 4rem;
    color: var(--text-muted);
    font-size: 1.3rem;
}

.coming-soon h3 {
    color: var(--primary-green);
    font-size: 2rem;
    margin-bottom: 1rem;
}

/* Footer */
.footer {
    text-align: center;
    padding: 3rem 2rem;
    margin-top: 6rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    background: rgba(0, 0, 0, 0.3);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-container {
        padding: 0 1rem;
    }
    
    .logo {
        font-size: 2rem;
    }
    
    .hero-section {
        padding: 4rem 0 3rem;
    }
    
    .categories-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .category-card {
        padding: 2rem 1.5rem;
    }
    
    .modal-content {
        margin: 1rem;
        padding: 2rem;
        width: auto;
    }
    
    .stats-section {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
}

/* Scroll Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Ad Container - Centralized Ad Management */
.ad-container {
    margin: 3rem 0;
    text-align: center;
    min-height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--card-bg);
    border: 1px dashed var(--border-color);
    border-radius: 15px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--border-color);
    border-radius: 50%;
    border-top-color: var(--primary-green);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}



/* AI Tools Styles */
.ai-tabs {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    border-bottom: 2px solid var(--border-color);
}

.tab-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    padding: 1rem 2rem;
    cursor: pointer;
    font-size: 1.1rem;
    font-weight: 600;
    border-bottom: 3px solid transparent;
    transition: all 0.3s ease;
}

.tab-btn.active {
    color: var(--primary-green);
    border-bottom-color: var(--primary-green);
}

.tab-btn:hover {
    color: var(--primary-green);
    background: rgba(0, 255, 65, 0.05);
}

.ai-search {
    position: relative;
    margin-bottom: 2rem;
}

.ai-search input {
    width: 100%;
    padding: 1rem 3rem 1rem 1rem;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 15px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.ai-search input:focus {
    outline: none;
    border-color: var(--primary-green);
    box-shadow: 0 0 20px rgba(0, 255, 65, 0.2);
}

.search-icon {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 1.2rem;
}

/* NEW: Category Chips */
.ai-categories {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin: 0 0 1.25rem 0;
}

.chip {
    border: 1px solid var(--border-color);
    background: rgba(255,255,255,0.02);
    color: var(--text-secondary);
    padding: 0.55rem 0.9rem;
    border-radius: 999px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s ease;
}

.chip:hover {
    border-color: var(--secondary-blue);
    color: var(--primary-green);
    transform: translateY(-1px);
}

.chip.active {
    background: linear-gradient(45deg, rgba(0,255,65,0.12), rgba(0,204,255,0.10));
    color: var(--primary-green);
    border-color: var(--primary-green);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: dropIn 420ms ease;
}

/* Grid */
.ai-tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.ai-tool-card {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 15px;
    padding: 1.5rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.ai-tool-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 255, 65, 0.1);
    border-color: var(--secondary-blue);
}

/* Slide-in animation when items are shown */
.ai-tool-card.reveal-from-top {
    animation: slideDownSoft 380ms ease;
}

/* Premium styling unchanged */
.ai-tool-card.premium {
    border-color: rgba(255, 215, 0, 0.3);
    background: rgba(255, 215, 0, 0.02);
}

.ai-tool-card.premium:hover {
    border-color: #ffd700;
    box-shadow: 0 15px 30px rgba(255, 215, 0, 0.1);
}

/* RESTORED: tool header layout */
.tool-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.tool-header h3 {
    color: var(--primary-green);
    font-size: 1.3rem;
    font-weight: 700;
    margin: 0;
}

/* Modal drop-in */
.modal-content.open {
    animation: dropIn 460ms cubic-bezier(.2,.8,.2,1);
}

@keyframes dropIn {
    0% { opacity: 0; transform: translateY(-24px) scale(0.98); }
    100% { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes slideDownSoft {
    0% { opacity: 0; transform: translateY(-18px); }
    100% { opacity: 1; transform: translateY(0); }
}

/* Minor text spacing for longer descriptions */
.tool-description { 
    color: var(--text-secondary);
    margin-bottom: 0.8rem;
    line-height: 1.65;
}

.tool-badge {
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
}

.tool-badge.free {
    background: rgba(0, 255, 65, 0.2);
    color: var(--primary-green);
    border: 1px solid var(--primary-green);
}

.tool-badge.premium {
    background: rgba(255, 215, 0, 0.2);
    color: #ffd700;
    border: 1px solid #ffd700;
}

.tool-description {
    color: var(--text-secondary);
    margin-bottom: 0.8rem;
    line-height: 1.65;
}

.tool-suitable {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 1rem;
    font-style: italic;
}

.tool-meta {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

.signup-info {
    color: var(--secondary-blue);
    font-size: 0.9rem;
    margin-bottom: 1rem;
    padding: 0.5rem;
    background: rgba(0, 204, 255, 0.05);
    border-radius: 8px;
    border-left: 3px solid var(--secondary-blue);
}

.tool-link {
    display: inline-block;
    background: linear-gradient(45deg, var(--primary-green), var(--secondary-blue));
    color: white;
    text-decoration: none;
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
    text-align: center;
}

.tool-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 255, 65, 0.3);
}

.tool-link.premium {
    background: linear-gradient(45deg, #ffd700, #ffed4e);
    color: #000;
}

.tool-link.premium:hover {
    box-shadow: 0 8px 20px rgba(255, 215, 0, 0.3);
}

.more-tools-notice {
    grid-column: 1 / -1;
    text-align: center;
    padding: 2rem;
    background: rgba(0, 255, 65, 0.03);
    border: 2px dashed var(--border-color);
    border-radius: 15px;
    color: var(--text-secondary);
}

.more-tools-notice h3 {
    color: var(--primary-green);
    margin-bottom: 1rem;
}

.ai-summary {
    margin-top: 3rem;
    padding: 2rem;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 20px;
    text-align: center;
}

.ai-summary h3 {
    color: var(--primary-green);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.summary-stats {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.stat-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1rem;
    background: rgba(0, 255, 65, 0.05);
    border-radius: 15px;
    min-width: 120px;
}

.stat-box .stat-number {
    font-size: 2rem;
    font-weight: 900;
    color: var(--primary-green);
    margin-bottom: 0.5rem;
}

.stat-box .stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

.summary-note {
    color: var(--text-secondary);
    line-height: 1.6;
    max-width: 600px;
    margin: 0 auto;
}

/* Responsive Design for AI Tools */
@media (max-width: 768px) {
    .ai-tools-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .ai-tabs {
        flex-direction: column;
        gap: 0;
    }
    
    .tab-btn {
        padding: 0.8rem 1rem;
        text-align: left;
    }
    
    .summary-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .tool-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
}

/* Dashboard */
.dashboard-section {
    padding: 2rem 0 3rem;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.dashboard-card {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 15px;
    padding: 1.25rem 1rem;
    text-align: center;
}

.dashboard-number {
    font-size: 2rem;
    font-weight: 900;
    color: var(--primary-green);
}

.dashboard-label {
    color: var(--text-secondary);
    font-weight: 600;
}

.dashboard-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
}

.action-group { 
    background: rgba(0, 255, 65, 0.03);
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    padding: 0.9rem;
}

.action-label { 
    display: block; 
    color: var(--primary-green);
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.action-row { 
    display: flex; 
    gap: 0.5rem;
}

.action-input {
    flex: 1;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-primary);
    padding: 0.6rem 0.8rem;
}

.action-input:focus {
    outline: none;
    border-color: var(--primary-green);
}

.action-btn {
    background: linear-gradient(45deg, var(--primary-green), var(--secondary-blue));
    color: #000;
    font-weight: 800;
    border: none;
    border-radius: 10px;
    padding: 0.6rem 0.9rem;
    cursor: pointer;
}

@media (max-width: 768px) {
    .dashboard-number { font-size: 1.6rem; }
}