:root {
    --bg-main: #0b0d11;       /* Deep futuristic dark background */
    --bg-nav: #12151a;        /* Sleek dark navbar */
    --bg-card: #161a22;       /* Subtle dark card background */
    --text-white: #ffffff;
    --text-gray: #a0a5b1;
    --accent-cyan: #42f8f5;
    --glow-shadow: rgba(66, 248, 245, 0.4);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Rajdhani', sans-serif;
}

body {
    background-color: var(--bg-main);
    color: var(--text-white);
    overflow-x: hidden;
}

h1, h2, h3, .logo span {
    font-family: 'Orbitron', sans-serif;
    letter-spacing: 1px;
}

/* --- NAVBAR --- */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 40px;
    background-color: var(--bg-nav);
    border-bottom: 1px solid rgba(66, 248, 245, 0.2);
    box-shadow: 0 4px 20px rgba(0,0,0,0.5);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    color: var(--text-white);
}

.logo-icon {
    width: 35px;
    height: 35px;
    background: transparent;
    border: 2px solid var(--accent-cyan);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--accent-cyan);
    box-shadow: 0 0 10px var(--glow-shadow);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-gray);
    font-weight: 600;
    transition: var(--transition);
    position: relative;
    padding-bottom: 5px;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--accent-cyan);
    text-shadow: 0 0 8px var(--glow-shadow);
}

/* --- APP LAYOUT --- */
.app-container {
    display: flex;
    min-height: calc(100vh - 130px);
}

/* --- SIDEBAR --- */
.sidebar {
    width: 280px;
    background-color: #090b0e;
    border-right: 1px solid rgba(66, 248, 245, 0.1);
    padding: 30px 20px;
}

.sidebar-section h3 {
    color: var(--accent-cyan);
    font-size: 0.9rem;
    text-transform: uppercase;
    margin: 20px 0 10px 0;
    opacity: 0.8;
}

.sidebar ul { list-style: none; }

.sidebar li {
    padding: 12px 15px;
    cursor: pointer;
    border-radius: 8px;
    transition: var(--transition);
    color: var(--text-gray);
    font-weight: 500;
}

.sidebar li:hover {
    background: rgba(66, 248, 245, 0.05);
    color: var(--accent-cyan);
    transform: translateX(5px);
}

/* --- MAIN CONTENT & HERO --- */
.main-content {
    flex: 1;
    padding: 40px;
}

.hero {
    text-align: center;
    padding: 50px;
    background: linear-gradient(135deg, #12151a 0%, #0b0d11 100%);
    border: 1px solid rgba(66, 248, 245, 0.2);
    border-radius: 15px;
    margin-bottom: 40px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.hero h1 {
    font-size: 3rem;
    color: var(--text-white);
    text-shadow: 0 0 15px rgba(255, 255, 255, 0.2);
    margin-bottom: 10px;
}

.hero p {
    color: var(--accent-cyan);
    font-weight: 600;
    letter-spacing: 2px;
    margin-bottom: 30px;
}

.cta-btn {
    padding: 12px 40px;
    background: var(--accent-cyan);
    color: #000;
    border: none;
    font-family: 'Orbitron', sans-serif;
    font-weight: bold;
    cursor: pointer;
    border-radius: 5px;
    transition: var(--transition);
    box-shadow: 0 0 15px var(--glow-shadow);
}

.cta-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 0 25px var(--accent-cyan);
}

/* --- TOOLS GRID --- */
.tools-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.tool-card {
    background: var(--bg-card);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.tool-card:hover {
    border-color: var(--accent-cyan);
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(66, 248, 245, 0.15);
}

.tool-card i {
    font-size: 2.5rem;
    color: var(--accent-cyan);
    margin-bottom: 15px;
    text-shadow: 0 0 10px var(--glow-shadow);
}

.tool-card h2 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--text-white);
}

.tool-card p {
    color: var(--text-gray);
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.open-btn {
    width: 100%;
    padding: 12px;
    background: transparent;
    color: var(--accent-cyan);
    border: 1px solid var(--accent-cyan);
    border-radius: 6px;
    cursor: pointer;
    font-family: 'Orbitron', sans-serif;
    font-weight: 600;
    transition: var(--transition);
}

.open-btn:hover {
    background: var(--accent-cyan);
    color: #000;
    box-shadow: 0 0 15px var(--accent-cyan);
}

/* --- MODAL (WORKING TOOLS UI) --- */
.modal-overlay {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.85);
    backdrop-filter: blur(8px);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 2000;
}

.modal-overlay.active { opacity: 1; visibility: visible; }

.modal-content {
    background: #12151a;
    width: 500px;
    max-width: 90%;
    padding: 35px;
    border-radius: 12px;
    border: 1px solid var(--accent-cyan);
    box-shadow: 0 0 30px rgba(66, 248, 245, 0.3);
    position: relative;
    color: white;
}

.close-modal {
    position: absolute;
    top: 15px; right: 20px;
    font-size: 1.8rem;
    cursor: pointer;
    color: var(--text-gray);
}

.close-modal:hover { color: var(--accent-cyan); }

/* Input Styles inside Modal */
textarea, input[type="text"], input[type="color"] {
    width: 100%;
    background: #0b0d11;
    border: 1px solid rgba(255,255,255,0.1);
    color: white;
    padding: 12px;
    border-radius: 5px;
    margin-top: 10px;
    font-size: 1rem;
}

textarea:focus, input[type="text"]:focus {
    border-color: var(--accent-cyan);
    outline: none;
}

/* --- FOOTER --- */
.footer {
    background: #090b0e;
    color: var(--text-gray);
    padding: 25px 40px;
    border-top: 1px solid rgba(255,255,255,0.05);
}

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

.footer-links a, .socials a {
    color: var(--text-gray);
    text-decoration: none;
    margin-left: 15px;
    transition: var(--transition);
}

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

/* --- TOAST --- */
.toast {
    position: fixed;
    bottom: 30px; right: 30px;
    background: #12151a;
    color: var(--accent-cyan);
    padding: 15px 25px;
    border-radius: 5px;
    border: 1px solid var(--accent-cyan);
    box-shadow: 0 0 15px var(--glow-shadow);
    display: none;
    z-index: 3000;
}

/* --- RESPONSIVENESS --- */
@media (max-width: 1024px) { .tools-container { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 768px) {
    .app-container { flex-direction: column; }
    .sidebar { width: 100%; }
    .tools-container { grid-template-columns: 1fr; }
}