@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700&family=JetBrains+Mono:wght@300;400;500&display=swap');

:root {
    /* Core Palette - Cinematic Dark */
    --bg-deep: #020203;
    --bg-surface: #0a0a0c;
    --bg-card: rgba(18, 18, 22, 0.6);

    /* Brand Accents */
    --accent-primary: #5B2EFF;
    --accent-glow: rgba(91, 46, 255, 0.3);
    --accent-secondary: #00d2ff;

    /* Text */
    --text-pure: #ffffff;
    --text-primary: #f0f0f2;
    --text-secondary: #94a3b8;
    --text-dim: #64748b;

    /* Borders & Glass */
    --border-glass: rgba(255, 255, 255, 0.05);
    --border-accent: rgba(91, 46, 255, 0.2);
    --glass-blur: blur(12px);

    /* Functional */
    --sidebar-width: 280px;
    --header-height: 72px;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;

    /* Transitions */
    --standard-ease: cubic-bezier(0.4, 0, 0.2, 1);
    --transition: all 0.3s var(--standard-ease);
}

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

body {
    background-color: var(--bg-deep);
    color: var(--text-primary);
    font-family: 'Plus Jakarta Sans', sans-serif;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    overflow: hidden;
}

/* Typography Extensions */
.technical {
    font-family: 'JetBrains Mono', monospace;
    letter-spacing: -0.01em;
    font-weight: 400;
}

h1,
h2,
h3,
h4 {
    color: var(--text-pure);
    font-weight: 600;
    letter-spacing: -0.01em;
}

/* Layout Engine */
.app-shell {
    display: flex;
    height: 100vh;
    width: 100vw;
    background: radial-gradient(circle at 0% 0%, rgba(91, 46, 255, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 100% 100%, rgba(0, 210, 255, 0.05) 0%, transparent 50%);
}

/* Premium Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-surface);
    border-right: 1px solid var(--border-glass);
    display: flex;
    flex-direction: column;
    padding: 32px 20px;
    z-index: 100;
    backdrop-filter: var(--glass-blur);
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 48px;
    padding-left: 12px;
}

.brand-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--accent-primary), #a855f7);
    border-radius: 8px;
    box-shadow: 0 0 20px var(--accent-glow);
}

.brand-name {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.nav-label {
    font-size: 11px;
    font-weight: 700;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin: 24px 0 12px 12px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: var(--transition);
    margin-bottom: 4px;
    border: 1px solid transparent;
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-primary);
}

.nav-link.active {
    background: rgba(91, 46, 255, 0.1);
    color: var(--text-pure);
    border-color: var(--border-accent);
}

.nav-link svg {
    opacity: 0.7;
    transition: var(--transition);
}

.nav-link.active svg {
    color: var(--accent-primary);
    opacity: 1;
}

/* Top Navigation Bar */
.top-bar {
    height: var(--header-height);
    padding: 0 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-glass);
    background: rgba(10, 10, 12, 0.4);
    backdrop-filter: var(--glass-blur);
}

/* User Profile Mini */
.user-pill {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 6px 16px 6px 6px;
    background: var(--border-glass);
    border-radius: 40px;
    border: 1px solid var(--border-glass);
    cursor: pointer;
    transition: var(--transition);
}

.user-pill:hover {
    background: rgba(255, 255, 255, 0.08);
}

.avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(45deg, #1e293b, #334155);
    border: 1px solid var(--accent-primary);
}

/* Content Area */
.stage {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.viewport {
    flex: 1;
    padding: 40px;
    overflow-y: auto;
}

/* Premium Components */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: var(--transition);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.glass-card:hover {
    border-color: var(--border-accent);
    transform: translateY(-2px);
}

.tag {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    background: rgba(91, 46, 255, 0.1);
    color: var(--accent-primary);
    border-radius: var(--radius-sm);
    font-size: 11px;
    font-weight: 600;
    border: 1px solid var(--border-accent);
}

.btn {
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    font-family: inherit;
}

.btn-primary {
    background: var(--accent-primary);
    color: var(--text-pure);
    box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
    filter: brightness(1.1);
    box-shadow: 0 6px 25px var(--accent-glow);
}

/* Login Screen */
#login-screen {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: var(--bg-deep);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(20px);
    transition: opacity 0.5s var(--standard-ease), visibility 0.5s var(--standard-ease);
}

#login-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

.login-card {
    width: 100%;
    max-width: 400px;
    padding: 48px;
    text-align: center;
}

.login-input {
    width: 100%;
    padding: 14px 20px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    color: white;
    margin-bottom: 16px;
    outline: none;
    transition: var(--transition);
    font-family: inherit;
}

.login-input:focus {
    border-color: var(--accent-primary);
    background: rgba(255, 255, 255, 0.05);
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade {
    animation: fadeIn 0.5s var(--standard-ease) forwards;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border-glass);
    border-radius: 10px;
}

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