:root {
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --bg-dark: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --accent-glow: 0 0 20px rgba(99, 102, 241, 0.3);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body.dark-theme {
    background-color: var(--bg-dark);
    background-image: 
        radial-gradient(circle at 0% 0%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 100% 100%, rgba(79, 70, 229, 0.1) 0%, transparent 50%);
    color: var(--text-main);
    min-height: 100vh;
    overflow-x: hidden;
}

.glass-container {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

/* Auth Screen */
#auth-screen {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    width: 100%;
    position: fixed;
    z-index: 1000;
    transition: var(--transition);
}

#auth-screen.hidden {
    opacity: 0;
    visibility: hidden;
    transform: scale(0.9);
}

.auth-card {
    width: 100%;
    max-width: 400px;
    padding: 40px;
    text-align: center;
}

.logo {
    margin-bottom: 10px;
}

.logo i {
    font-size: 3rem;
    color: var(--primary);
    filter: drop-shadow(var(--accent-glow));
    margin-bottom: 15px;
}

.logo h1 {
    font-family: 'Outfit', sans-serif;
    font-size: 2.5rem;
    letter-spacing: -1px;
}

.logo h1 span {
    color: var(--primary);
}

.subtitle {
    color: var(--text-muted);
    margin-bottom: 30px;
}

.input-group {
    position: relative;
    margin-bottom: 20px;
}

.input-group i {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.input-group input {
    width: 100%;
    padding: 16px 20px 16px 50px;
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: white;
    font-size: 1rem;
    transition: var(--transition);
}

.input-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: var(--accent-glow);
}

.btn-primary {
    width: 100%;
    padding: 16px;
    background: var(--primary);
    border: none;
    border-radius: 12px;
    color: white;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--accent-glow);
}

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

.auth-footer {
    margin-top: 30px;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.auth-footer a {
    color: var(--primary);
    text-decoration: none;
}

.pendrive-hint {
    margin-top: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: #10b981;
    font-weight: 500;
}

.download-section {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--glass-border);
}

.download-section p {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 15px;
}

.download-buttons {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.btn-download {
    flex: 1;
    padding: 10px 15px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: var(--text-main);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: var(--transition);
}

.btn-download:hover {
    background: rgba(99, 102, 241, 0.1);
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
}

/* Dashboard Layout */
#dashboard {
    display: flex;
    height: 100vh;
}

.sidebar {
    width: 280px;
    background: rgba(15, 23, 42, 0.8);
    border-right: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    padding: 30px 20px;
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: 'Outfit', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 50px;
}

.sidebar-logo i {
    color: var(--primary);
}

.nav-links {
    list-style: none;
    flex-grow: 1;
}

.nav-links li {
    margin-bottom: 10px;
}

.nav-links a {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 14px 20px;
    text-decoration: none;
    color: var(--text-muted);
    border-radius: 12px;
    transition: var(--transition);
}

.nav-links li.active a, .nav-links a:hover {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-top: 20px;
    border-top: 1px solid var(--glass-border);
}

.user-profile img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

.user-info {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.user-name {
    font-weight: 600;
    font-size: 0.9rem;
}

.user-status {
    font-size: 0.75rem;
    color: #10b981;
}

#logout-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.1rem;
    transition: var(--transition);
}

#logout-btn:hover {
    color: #ef4444;
}

/* Content Area */
.content {
    flex-grow: 1;
    padding: 40px;
    overflow-y: auto;
}

.content-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.search-bar {
    position: relative;
    width: 100%;
    max-width: 400px;
}

.search-bar i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.search-bar input {
    width: 100%;
    padding: 12px 15px 12px 45px;
    background: rgba(30, 41, 59, 0.5);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: white;
}

.btn-add {
    background: var(--primary);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition);
}

.btn-add:hover {
    background: var(--primary-hover);
    transform: scale(1.05);
}

.vault-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.password-card {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    transition: var(--transition);
}

.password-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 15px;
}

.site-icon {
    width: 48px;
    height: 48px;
    background: rgba(15, 23, 42, 0.8);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary);
}

.site-name {
    font-weight: 700;
    font-size: 1.1rem;
}

.site-user {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.card-actions {
    display: flex;
    gap: 10px;
    margin-top: auto;
}

.btn-icon {
    flex: 1;
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: white;
    padding: 10px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 0.85rem;
}

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

/* Modals */
#modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.modal {
    width: 90%;
    max-width: 500px;
    padding: 40px;
}

.generated-output {
    display: flex;
    gap: 10px;
    margin: 20px 0;
}

.generated-output input {
    flex-grow: 1;
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid var(--primary);
    border-radius: 12px;
    padding: 15px;
    color: white;
    font-family: monospace;
    font-size: 1.2rem;
    text-align: center;
}

.generator-controls {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 30px;
}

.control-group label {
    display: block;
    margin-bottom: 10px;
    color: var(--text-muted);
}

.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.modal-actions {
    display: flex;
    gap: 15px;
}

.btn-secondary {
    flex: 1;
    padding: 14px;
    background: transparent;
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: var(--text-muted);
    cursor: pointer;
    font-weight: 600;
}

/* Utils */
.hidden { display: none !important; }

/* Mobile Responsive */
@media (max-width: 768px) {
    #dashboard {
        flex-direction: column-reverse;
    }
    
    .sidebar {
        width: 100%;
        height: 70px;
        flex-direction: row;
        padding: 0 20px;
        align-items: center;
        justify-content: space-around;
        position: fixed;
        bottom: 0;
        z-index: 500;
    }
    
    .sidebar-logo, .user-profile .user-info {
        display: none;
    }
    
    .nav-links {
        display: flex;
        width: 100%;
        justify-content: space-around;
        margin-bottom: 0;
    }
    
    .nav-links li {
        margin-bottom: 0;
    }
    
    .nav-links a span {
        display: none;
    }
    
    .nav-links a {
        padding: 15px;
    }
    
    .content {
        padding: 20px;
        padding-bottom: 90px;
    }
    
    .content-header {
        flex-direction: column;
        gap: 20px;
    }
    
    .search-bar {
        max-width: 100%;
    }
    
    .btn-add {
        width: 100%;
        justify-content: center;
    }
}