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

:root {
    --bg-primary: #000000;
    --accent-cyan: #00ffff;
    --accent-purple: #b967ff;
    --text-primary: #ffffff;
    --text-secondary: #cccccc;
    --text-muted: #888888;
    --surface-dark: #1a1a1a;
    --surface-darker: #0f0f0f;
    --border-color: #333333;
    --error-color: #ff4757;
    --success-color: #2ed573;
    --warning-color: #ffa502;
    
    --font-heading: 'JetBrains Mono', monospace;
    --font-body: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    
    --shadow-glow: 0 0 20px rgba(0, 255, 255, 0.3);
    --shadow-purple: 0 0 20px rgba(185, 103, 255, 0.3);
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.highlight {
    background: linear-gradient(45deg, var(--accent-cyan), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition-smooth);
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-primary);
    text-decoration: none;
}

.nav-brand i {
    color: var(--accent-cyan);
    font-size: 1.5rem;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    position: relative;
    transition: var(--transition-smooth);
    padding: 0.5rem 0;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(45deg, var(--accent-cyan), var(--accent-purple));
    transition: var(--transition-smooth);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-cta {
    background: linear-gradient(45deg, var(--accent-cyan), var(--accent-purple));
    color: var(--bg-primary);
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition-smooth);
    transform: perspective(1000px) rotateX(0deg) rotateY(0deg);
}

.nav-cta:hover {
    box-shadow: var(--shadow-glow);
    transform: perspective(1000px) rotateX(-5deg) rotateY(5deg) translateY(-2px);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: var(--transition-smooth);
    border-radius: 2px;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(0, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(185, 103, 255, 0.1) 0%, transparent 50%),
        var(--bg-primary);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23333" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.1;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 2;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition-smooth);
    transform: perspective(1000px) rotateX(0deg) rotateY(0deg);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(45deg, var(--accent-cyan), var(--accent-purple));
    color: var(--bg-primary);
}

.btn-primary:hover {
    box-shadow: var(--shadow-glow);
    transform: perspective(1000px) rotateX(-5deg) rotateY(5deg) translateY(-2px);
}

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

.btn-secondary:hover {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.2);
    color: var(--accent-cyan);
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

/* Tools Section */
.tools {
    padding: 6rem 0;
    background: var(--surface-darker);
}

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

.section-description {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: 4rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.tool-card {
    background: var(--surface-dark);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    cursor: pointer;
    transition: var(--transition-smooth);
    transform: perspective(1000px) rotateX(0deg) rotateY(0deg);
    position: relative;
    overflow: hidden;
}

.tool-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 255, 255, 0.1), transparent);
    transition: var(--transition-smooth);
}

.tool-card:hover::before {
    left: 100%;
}

.tool-card:hover {
    border-color: var(--accent-cyan);
    box-shadow: var(--shadow-glow);
    transform: perspective(1000px) rotateX(-5deg) rotateY(5deg) translateY(-5px);
}

.tool-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(45deg, var(--accent-cyan), var(--accent-purple));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 2;
}

.tool-icon i {
    font-size: 1.5rem;
    color: var(--bg-primary);
}

.tool-title {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    position: relative;
    z-index: 2;
}

.tool-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 2;
}

.tool-features {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    position: relative;
    z-index: 2;
}

.feature {
    background: var(--surface-darker);
    color: var(--accent-cyan);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    z-index: 2000;
    opacity: 0;
    transition: var(--transition-smooth);
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
}

.modal-content {
    background: var(--surface-dark);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9) translateY(-20px);
    transition: var(--transition-smooth);
}

.modal.active .modal-content {
    transform: scale(1) translateY(0);
}

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

.modal-header h3 {
    font-size: 1.5rem;
    margin-bottom: 0;
    color: var(--accent-cyan);
}

.modal-close {
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    transition: var(--transition-smooth);
    padding: 0.5rem;
    border-radius: 4px;
}

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

.modal-body {
    padding: 2rem;
}

/* Form Styles */
.input-section,
.output-section {
    margin-bottom: 2rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--accent-cyan);
}

textarea,
input[type="text"],
input[type="password"] {
    width: 100%;
    background: var(--surface-darker);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    color: var(--text-primary);
    font-family: var(--font-body);
    resize: vertical;
    transition: var(--transition-smooth);
}

textarea:focus,
input[type="text"]:focus,
input[type="password"]:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 10px rgba(0, 255, 255, 0.2);
}

.input-actions,
.output-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1rem;
}

.usage-counter {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

#usage-count {
    color: var(--accent-cyan);
    font-weight: 600;
}

.process-section {
    text-align: center;
    margin: 2rem 0;
}

.output-container {
    position: relative;
}

.output-actions {
    gap: 1rem;
}

/* Pro Modal Styles */
.pro-message {
    text-align: center;
    margin-bottom: 2rem;
}

.pro-message i {
    font-size: 3rem;
    color: var(--accent-purple);
    margin-bottom: 1rem;
}

.pro-message h4 {
    color: var(--accent-purple);
    margin-bottom: 0.5rem;
}

.pro-login {
    background: var(--surface-darker);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
}

.pro-login h5 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.form-group {
    margin-bottom: 1rem;
}

.error-message {
    color: var(--error-color);
    font-size: 0.875rem;
    margin-top: 0.5rem;
    padding: 0.5rem;
    background: rgba(255, 71, 87, 0.1);
    border-radius: 4px;
    border-left: 3px solid var(--error-color);
}

.pro-upgrade {
    text-align: center;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3000;
}

.loading-spinner {
    text-align: center;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 3px solid var(--border-color);
    border-top: 3px solid var(--accent-cyan);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

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

.loading-spinner p {
    color: var(--text-secondary);
    font-size: 1.125rem;
}

/* Footer */
.footer {
    background: var(--surface-darker);
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--border-color);
}

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

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.footer-brand i {
    color: var(--accent-cyan);
    font-size: 1.5rem;
}

.footer-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--surface-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-smooth);
}

.social-link:hover {
    color: var(--accent-cyan);
    border-color: var(--accent-cyan);
    box-shadow: 0 0 10px rgba(0, 255, 255, 0.2);
}

.footer-title {
    color: var(--accent-cyan);
    font-size: 1.125rem;
    margin-bottom: 1rem;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-smooth);
}

.footer-links a:hover {
    color: var(--accent-cyan);
}

.testimonials blockquote {
    background: var(--surface-dark);
    border-left: 3px solid var(--accent-purple);
    padding: 1rem;
    margin-bottom: 1rem;
    border-radius: 4px;
    font-style: italic;
}

.testimonials cite {
    color: var(--accent-purple);
    font-style: normal;
    font-weight: 600;
    font-size: 0.875rem;
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-legal {
    display: flex;
    gap: 2rem;
}

.footer-legal a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-smooth);
}

.footer-legal a:hover {
    color: var(--accent-cyan);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(0, 0, 0, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding-top: 2rem;
        transition: var(--transition-smooth);
        border-top: 1px solid var(--border-color);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .tools-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .tool-card {
        padding: 1.5rem;
    }

    .modal-content {
        width: 95%;
        margin: 1rem;
    }

    .modal-body {
        padding: 1.5rem;
    }

    .input-actions,
    .output-actions {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }

    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
    }

    .footer-legal {
        justify-content: center;
    }

    .container {
        padding: 0 1rem;
    }

    .nav-container {
        padding: 1rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .tools-grid {
        grid-template-columns: 1fr;
    }

    .tool-card {
        padding: 1rem;
    }

    .modal-header {
        padding: 1rem;
    }

    .modal-body {
        padding: 1rem;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 20px rgba(0, 255, 255, 0.3);
    }
    50% {
        box-shadow: 0 0 30px rgba(0, 255, 255, 0.5);
    }
}

.animate-in {
    animation: fadeInUp 0.6s ease-out;
}

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

::-webkit-scrollbar-track {
    background: var(--surface-darker);
}

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

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-purple);
}

/* Selection Styling */
::selection {
    background: var(--accent-cyan);
    color: var(--bg-primary);
}

::-moz-selection {
    background: var(--accent-cyan);
    color: var(--bg-primary);
}