:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --secondary-color: #8b5cf6;
    --accent-color: #06b6d4;
    --bg-primary: #0f0f23;
    --bg-secondary: #1a1a2e;
    --bg-tertiary: #16213e;
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    --border-color: #27272a;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

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

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    padding-top: 60px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(15, 15, 35, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    transition: color 0.3s ease;
}

.nav-toggle:hover {
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    min-height: calc(100vh - 60px);
    display: none;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    padding: 2rem 0;
    overflow-y: auto;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 80%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    width: 100%;
}

.btn {
    padding: 0.875rem 2rem;
    border: none;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-large {
    padding: 1.25rem 3rem;
    font-size: 1.25rem;
    width: 100%;
    justify-content: center;
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.btn-secondary:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* Hero Visual */
.hero-visual {
    position: relative;
    height: 400px;
}

.floating-card {
    position: absolute;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: var(--shadow-lg);
    animation: float 6s ease-in-out infinite;
}

.floating-card:nth-child(1) {
    top: 10%;
    left: 5%;
    animation-delay: 0s;
}

.floating-card:nth-child(2) {
    top: 15%;
    right: 5%;
    animation-delay: 1.5s;
}

.floating-card:nth-child(3) {
    bottom: 25%;
    left: 15%;
    animation-delay: 3s;
}

.floating-card:nth-child(4) {
    bottom: 15%;
    right: 10%;
    animation-delay: 4.5s;
}

.floating-card i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

/* Tools Section */
.tools-section {
    padding: 6rem 0;
    background: var(--bg-secondary);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 1rem;
}

.section-description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 3rem;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.tool-card {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.tool-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.tool-card:hover::before {
    transform: scaleX(1);
}

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

.tool-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.tool-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.tool-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* About Section */
.about-section {
    padding: 4rem 0;
    background: var(--bg-primary);
    min-height: calc(100vh - 60px);
    display: none;
}

.about-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.about-card {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
}

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

.about-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-icon i {
    font-size: 1.75rem;
    color: white;
}

.about-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.about-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.about-developer {
    margin-top: 4rem;
    padding-top: 3rem;
    border-top: 1px solid var(--border-color);
}

.developer-info {
    max-width: 700px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 2rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 2rem;
}

.developer-avatar {
    flex-shrink: 0;
}

.developer-avatar i {
    font-size: 4rem;
    color: var(--primary-color);
}

.developer-text h4 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.developer-text p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

@media (max-width: 768px) {
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .developer-info {
        flex-direction: column;
        text-align: center;
    }
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
    text-align: center;
    color: var(--text-muted);
    display: none;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
}

.modal-content {
    background-color: var(--bg-secondary);
    margin: 2% auto;
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    width: 90%;
    max-width: 1000px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color 0.3s ease;
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: 2rem;
}

/* Tool Interface Styles */
.tool-interface {
    display: grid;
    gap: 2rem;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.input-group label {
    font-weight: 500;
    color: var(--text-primary);
}

.input-group input,
.input-group textarea,
.input-group select {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 0.75rem;
    color: var(--text-primary);
    font-family: inherit;
    transition: border-color 0.3s ease;
}

.input-group input:focus,
.input-group textarea:focus,
.input-group select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.input-group textarea {
    min-height: 120px;
    resize: vertical;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
}

.tool-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.result-area {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 1rem;
    min-height: 100px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    white-space: pre-wrap;
    word-break: break-all;
}

.success {
    border-color: var(--success-color);
    background: rgba(16, 185, 129, 0.1);
}

.error {
    border-color: var(--error-color);
    background: rgba(239, 68, 68, 0.1);
    color: var(--error-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    body {
        padding-top: 60px;
    }
    
    .hero {
        padding: 1rem 0;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
        padding: 1rem;
    }
    
    .hero-title {
        font-size: 2rem;
        line-height: 1.3;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-visual {
        height: 300px;
        display: none;
    }
    
    .nav-container {
        padding: 1rem;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-secondary);
        border-top: 1px solid var(--border-color);
        flex-direction: column;
        padding: 1rem 0;
        gap: 0;
        z-index: 999;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu li {
        padding: 0;
    }
    
    .nav-link {
        display: block;
        padding: 1rem 2rem;
        border-bottom: 1px solid var(--border-color);
    }
    
    .nav-link:hover {
        background: var(--bg-tertiary);
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-buttons {
        justify-content: center;
        flex-direction: column;
    }
    
    .btn-large {
        padding: 1rem 2rem;
        font-size: 1rem;
        width: 100%;
    }
    
    .tool-actions {
        justify-content: flex-start;
        gap: 0.5rem;
    }
    
    .tool-actions .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .container {
        padding: 0 1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .section-description {
        font-size: 1rem;
    }
    
    .about-section {
        padding: 2rem 0;
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mt-2 { margin-top: 1rem; }
.hidden { display: none; }

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* Tools App Layout */
.tools-app {
    width: 100%;
    height: calc(100vh - 60px);
    background: var(--bg-primary);
    display: flex;
    position: relative;
}

.tools-app.hidden {
    display: none !important;
}

/* Sidebar */
.tools-sidebar {
    width: 320px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.sidebar-search {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    position: relative;
}

.search-input {
    width: 100%;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 0.75rem 3.5rem 0.75rem 2.5rem;
    color: var(--text-primary);
    font-size: 0.9rem;
    transition: border-color 0.3s ease;
}

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

.search-input::placeholder {
    color: var(--text-muted);
}

.search-icon {
    position: absolute;
    left: 2rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 0.9rem;
    pointer-events: none;
}

.search-shortcut {
    position: absolute;
    right: 2rem;
    top: 50%;
    transform: translateY(-50%);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 0.25rem;
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    color: var(--text-muted);
    font-family: monospace;
    pointer-events: none;
}

.tools-list {
    flex: 1;
    overflow-y: auto;
    padding: 0.5rem;
}

.tool-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    margin-bottom: 0.25rem;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.tool-item:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-color);
}

.tool-item.active {
    background: var(--bg-tertiary);
    border-color: var(--primary-color);
}

.tool-item.keyboard-highlight {
    background: var(--bg-tertiary);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

.tool-item-icon {
    font-size: 1.1rem;
    color: var(--primary-color);
    width: 20px;
    text-align: center;
}

.tool-item-content {
    flex: 1;
}

.tool-item-title {
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.tool-item-desc {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.3;
    display: none; /* Hidden since we removed descriptions */
}

/* Main Content Area */
.tools-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

.tool-header {
    padding: 2rem;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.tool-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.tool-header p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.tool-content {
    flex: 1;
    padding: 2rem;
    overflow-y: auto;
    background: var(--bg-primary);
}

.welcome-message {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-secondary);
}

.welcome-icon {
    font-size: 4rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.welcome-message h3 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.welcome-message p {
    font-size: 1rem;
    line-height: 1.6;
}

/* Tool Interface Styles for Sidebar Layout */
.tool-interface {
    max-width: 800px;
    margin: 0 auto;
}

.tool-interface .input-group {
    margin-bottom: 1.5rem;
}

.tool-interface .tool-actions {
    margin: 2rem 0;
    justify-content: flex-start;
}

.tool-interface .result-area {
    max-height: 300px;
    overflow-y: auto;
}

/* Responsive Design for Tools App */
@media (max-width: 768px) {
    .tools-sidebar {
        width: 280px;
        position: fixed;
        left: 0;
        top: 60px;
        height: calc(100vh - 60px);
        z-index: 1001;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        box-shadow: 2px 0 10px rgba(0, 0, 0, 0.3);
    }
    
    .tools-sidebar.open {
        transform: translateX(0);
    }
    
    .tools-main {
        width: 100%;
    }
    
    .tool-header {
        padding: 1rem;
        padding-left: 3.5rem;
        position: relative;
    }
    
    .tool-header h2 {
        font-size: 1.25rem;
    }
    
    .tool-header p {
        font-size: 0.85rem;
    }
    
    .tool-content {
        padding: 1rem;
    }
    
    .mobile-menu-btn {
        display: flex !important;
        align-items: center;
        justify-content: center;
        position: absolute;
        top: 1.25rem;
        left: 1rem;
        z-index: 1002;
        background: transparent;
        color: var(--primary-color);
        border: none;
        border-radius: 0.375rem;
        padding: 0.5rem;
        cursor: pointer;
        font-size: 1.5rem;
        transition: all 0.2s ease;
        width: auto;
        height: auto;
    }
    
    .mobile-menu-btn:hover {
        background: rgba(99, 102, 241, 0.1);
        color: var(--primary-color);
    }
    
    .mobile-menu-btn:active {
        transform: scale(0.9);
    }
    
    .mobile-menu-btn i {
        pointer-events: none;
        transition: transform 0.3s ease;
    }
    
    .tools-sidebar.open ~ .tools-main .mobile-menu-btn i {
        transform: rotate(180deg);
    }
}

.mobile-menu-btn {
    display: none;
}



/* Scrollbar for tools list */
.tools-list::-webkit-scrollbar {
    width: 6px;
}

.tools-list::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

.tools-list::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

.tools-list::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}
/* M
obile sidebar backdrop */
.sidebar-backdrop {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    backdrop-filter: blur(2px);
}

@media (max-width: 768px) {
    .sidebar-backdrop.active {
        display: block;
    }
}

/* Additional mobile improvements */
@media (max-width: 768px) {
    .tool-interface {
        max-width: 100%;
    }
    
    .tool-interface .input-group label {
        font-size: 0.9rem;
    }
    
    .tool-interface .input-group input,
    .tool-interface .input-group textarea,
    .tool-interface .input-group select {
        font-size: 16px; /* Prevents zoom on iOS */
    }
    
    .tool-interface .result-area {
        font-size: 0.85rem;
        max-height: 250px;
    }
    
    .input-group textarea {
        min-height: 100px;
    }
    
    /* Improve button wrapping on mobile */
    .tool-actions {
        flex-wrap: wrap;
    }
    
    .tool-actions .btn {
        flex: 1 1 auto;
        min-width: 120px;
    }
    
    /* Welcome message adjustments */
    .welcome-message {
        padding: 2rem 1rem;
    }
    
    .welcome-icon {
        font-size: 3rem;
    }
    
    .welcome-message h3 {
        font-size: 1.25rem;
    }
    
    .welcome-message p {
        font-size: 0.9rem;
    }
}

/* Small mobile devices */
@media (max-width: 480px) {
    .nav-logo {
        font-size: 1.25rem;
    }
    
    .nav-logo img {
        width: 28px !important;
        height: 28px !important;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .hero-description {
        font-size: 0.95rem;
    }
    
    .tool-header h2 {
        font-size: 1.1rem;
    }
    
    .tool-header p {
        font-size: 0.8rem;
    }
    
    .mobile-menu-btn {
        padding: 0.4rem;
        font-size: 1.25rem;
        width: auto;
        height: auto;
    }
    
    .tool-actions .btn {
        padding: 0.6rem 1rem;
        font-size: 0.85rem;
        min-width: 100px;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .about-card {
        padding: 1.5rem;
    }
}