@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;700&family=JetBrains+Mono:wght@400;700&family=Orbitron:wght@400;700&display=swap');

:root {
    --bg-color: #050505;
    --card-bg: rgba(20, 20, 20, 0.7);
    --border-color: rgba(255, 255, 255, 0.1);
    --primary-color: #00f3ff;
    --secondary-color: #bc00ff;
    --text-color: #e0e0e0;
    --text-muted: #888888;
    --accent-glow: rgba(0, 243, 255, 0.3);
    --font-main: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --font-heading: 'Orbitron', sans-serif;
    --transition-speed: 0.3s;
}

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

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

/* Geeky Background Effects */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 30%, rgba(188, 0, 255, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(0, 243, 255, 0.05) 0%, transparent 50%);
    z-index: -1;
}

body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.1) 50%), linear-gradient(90deg, rgba(255, 0, 0, 0.03), rgba(0, 255, 0, 0.01), rgba(0, 0, 255, 0.03));
    background-size: 100% 2px, 3px 100%;
    pointer-events: none;
    z-index: 9999;
}

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

header {
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--primary-color);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo span {
    color: var(--secondary-color);
}

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

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition-speed);
    text-transform: uppercase;
}

.nav-links a:hover {
    color: var(--primary-color);
    text-shadow: 0 0 10px var(--accent-glow);
}

.lang-toggle {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.8rem;
    font-family: var(--font-mono);
}

/* Hero Section */
.hero {
    padding: 3rem 0;
    text-align: center;
}

.hero h1 {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 0 10px var(--accent-glow));
}

.hero p {
    color: var(--text-muted);
    font-size: 1.1rem;
    max-width: 800px;
    margin: 0 auto 2rem;
}

/* Main Tool Section */
.vmp-core {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2.5rem;
}

@media (max-width: 992px) {
    .vmp-core {
        grid-template-columns: 1fr;
    }
}

.terminal-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    position: relative;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.terminal-header {
    background: rgba(255, 255, 255, 0.05);
    padding: 0.75rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.terminal-controls {
    display: flex;
    gap: 6px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot-red { background: #ff5f56; }
.dot-yellow { background: #ffbd2e; }
.dot-green { background: #27c93f; }

.terminal-title {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
}

.terminal-body {
    padding: 0;
}

textarea {
    width: 100%;
    height: 400px;
    background: transparent;
    border: none;
    color: var(--primary-color);
    font-family: var(--font-mono);
    padding: 1.5rem;
    resize: none;
    outline: none;
    font-size: 0.95rem;
    line-height: 1.5;
}

textarea::placeholder {
    color: rgba(0, 243, 255, 0.3);
}

.action-bar {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin: 2rem 0;
}

.btn {
    padding: 0.8rem 2rem;
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition-speed);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--bg-color);
    box-shadow: 0 0 20px var(--accent-glow);
}

.btn-primary:hover {
    filter: brightness(1.2);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--secondary-color);
    color: var(--secondary-color);
}

.btn-secondary:hover {
    background: rgba(188, 0, 255, 0.1);
    transform: translateY(-2px);
}

/* Info Cards */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.info-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 2rem;
    border-radius: 8px;
    transition: var(--transition-speed);
}

.info-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
}

.info-card h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.info-card p {
    font-size: 0.95rem;
    color: var(--text-muted);
}

/* FAQ Section */
.faq-section {
    margin-bottom: 4rem;
}

.faq-item {
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1.5rem;
}

.faq-item h4 {
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

/* Footer */
footer {
    padding: 2.5rem 0;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer-links {
    margin-bottom: 2rem;
    display: flex;
    justify-content: center;
    gap: 2rem;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
}

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

.copy-button {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 0.3rem 0.6rem;
    border-radius: 4px;
    font-size: 0.7rem;
    cursor: pointer;
    backdrop-filter: blur(5px);
}

.copy-button:hover {
    background: var(--primary-color);
    color: var(--bg-color);
}

/* Spinner */
.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(0, 0, 0, 0.3);
    border-top-color: var(--bg-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* File Upload */
.upload-zone {
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    padding: 3rem 2rem;
    text-align: center;
    transition: var(--transition-speed);
    cursor: pointer;
    background: rgba(255, 255, 255, 0.02);
}

.upload-zone:hover, .upload-zone.dragover {
    border-color: var(--primary-color);
    background: rgba(0, 243, 255, 0.05);
}

.upload-zone i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    display: block;
}

.hidden {
    display: none;
}