/* 
    DevOS — Rashid Portfolio Redesign
    A unified, futuristic, and high-performance developer operating system.
*/

:root {
    /* DevOS Core Palette */
    --os-bg: #09090b;
    --os-sidebar: #020617;
    --os-surface: #111114;
    --os-surface-hover: #18181b;
    --os-border: rgba(255, 255, 255, 0.08);
    --os-border-bright: rgba(255, 255, 255, 0.15);
    
    /* Accents */
    --os-accent: #38bdf8;
    --os-accent-rgb: 56, 189, 248;
    --os-accent-secondary: #8b5cf6;
    --os-accent-secondary-rgb: 139, 92, 246;
    
    /* Text */
    --os-text: #f8fafc;
    --os-text-dim: #94a3b8;
    --os-text-muted: #64748b;
    
    /* Sizes */
    --os-sidebar-width: 280px;
    --os-sidebar-collapsed: 80px;
    --os-header-height: 64px;
    --os-radius: 12px;
    
    /* Shadows & Effects */
    --os-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
    --os-glow: 0 0 20px rgba(var(--os-accent-rgb), 0.15);
    --os-blur: blur(12px);
}

/* Layout Structure */
.devos-shell {
    display: flex;
    height: 100vh;
    width: 100vw;
    background: var(--os-bg);
    color: var(--os-text);
    overflow: hidden;
    font-family: var(--font-body);
}

.devos-sidebar {
    width: var(--os-sidebar-width);
    background: var(--os-sidebar);
    border-right: 1px solid var(--os-border);
    display: flex;
    flex-direction: column;
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 100;
}

.devos-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
}

.devos-header {
    height: var(--os-header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    border-bottom: 1px solid var(--os-border);
    background: rgba(9, 9, 11, 0.5);
    backdrop-filter: var(--os-blur);
}

.devos-content {
    flex: 1;
    overflow-y: auto;
    padding: 32px;
    scroll-behavior: smooth;
}

/* Sidebar Components */
.sidebar-header {
    padding: 32px 24px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-logo {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--os-text);
    letter-spacing: -0.02em;
}

.sidebar-logo span {
    color: var(--os-accent);
}

.sidebar-nav {
    flex: 1;
    padding: 0 16px;
}

.nav-group {
    margin-bottom: 32px;
}

.nav-label {
    padding: 0 12px;
    font-size: 0.65rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--os-text-muted);
    margin-bottom: 12px;
    opacity: 0.5;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border-radius: 12px;
    color: var(--os-text-dim);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    margin-bottom: 4px;
    font-size: 0.9rem;
    font-weight: 500;
}

.nav-item i {
    width: 20px;
    font-size: 1.1rem;
    color: var(--os-text-muted);
    transition: color 0.2s ease;
}

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

.nav-item:hover i {
    color: var(--os-text);
}

.nav-item.active {
    background: linear-gradient(135deg, rgba(var(--os-accent-rgb), 0.15) 0%, rgba(var(--os-accent-rgb), 0.05) 100%);
    color: var(--os-accent);
    border: 1px solid rgba(var(--os-accent-rgb), 0.1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.nav-item.active i {
    color: var(--os-accent);
}

/* Dashboard Widgets (Bento Grid) */
.bento-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    grid-auto-rows: minmax(160px, auto);
    gap: 20px;
}

.bento-item {
    background: var(--os-surface);
    border: 1px solid var(--os-border);
    border-radius: 24px;
    padding: 24px;
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    position: relative;
    overflow: hidden;
}

.bento-item::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(255,255,255,0.03) 0%, transparent 60%);
    pointer-events: none;
}

.bento-item:hover {
    border-color: var(--os-border-bright);
    transform: translateY(-4px) scale(1.01);
    box-shadow: 0 20px 40px -10px rgba(0,0,0,0.5);
}

.bento-item.col-12 { grid-column: span 12; }
.bento-item.col-8 { grid-column: span 8; }
.bento-item.col-6 { grid-column: span 6; }
.bento-item.col-4 { grid-column: span 4; }
.bento-item.row-2 { grid-row: span 2; }

/* Status Indicators */
.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    background: rgba(34, 197, 94, 0.1);
    color: #22c55e;
    border-radius: 100px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.status-dot {
    width: 6px;
    height: 6px;
    background: currentColor;
    border-radius: 50%;
    box-shadow: 0 0 8px currentColor;
}

/* Glass Buttons */
.btn-os {
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--os-border);
    color: var(--os-text);
    padding: 10px 20px;
    border-radius: 10px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-os:hover {
    background: rgba(255,255,255,0.1);
    border-color: var(--os-border-bright);
}

.btn-os.primary {
    background: var(--os-accent);
    color: #000;
    border: none;
}

.btn-os.primary:hover {
    background: #7dd3fc;
    transform: scale(1.02);
}

/* Section Header */
.view-section {
    display: none;
}

.view-section.active {
    display: block;
    animation: viewFadeIn 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Status Bar */
.devos-statusbar {
    position: fixed;
    bottom: 0;
    left: var(--os-sidebar-width);
    right: 0;
    height: 36px;
    background: rgba(2, 6, 23, 0.95);
    border-top: 1px solid var(--os-border);
    display: flex;
    align-items: center;
    padding: 0 16px;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--os-text-muted);
    z-index: 50;
    gap: 24px;
    transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.devos-statusbar .status-dot {
    width: 6px;
    height: 6px;
    background: #22c55e;
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 0 8px #22c55e;
}

/* Adjust content padding for status bar */
.devos-content {
    padding-bottom: 56px;
}

/* Settings Modal Overrides for DevOS */
.settings-modal {
    z-index: 2000 !important;
}

.settings-overlay {
    z-index: 1999 !important;
}

/* Light Mode Overrides */
body.light-mode .devos-shell {
    --os-bg: #f1f5f9;
    --os-sidebar: #ffffff;
    --os-surface: #ffffff;
    --os-surface-hover: #f8fafc;
    --os-border: rgba(0, 0, 0, 0.08);
    --os-border-bright: rgba(0, 0, 0, 0.15);
    --os-text: #0f172a;
    --os-text-dim: #475569;
    --os-text-muted: #94a3b8;
}

body.light-mode .devos-header {
    background: rgba(255, 255, 255, 0.7);
}

body.light-mode .devos-statusbar {
    background: rgba(255, 255, 255, 0.9);
}

body.light-mode .bento-item::before {
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(0,0,0,0.02) 0%, transparent 60%);
}

body.light-mode .nav-item:hover {
    background: rgba(0, 0, 0, 0.03);
}

body.light-mode .command-search input::placeholder {
    color: #94a3b8;
}

/* Hide skip link in DevOS mode */
.skip-link {
    display: none !important;
}

/* Vault Grid in DevOS */
.vault-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

@media (max-width: 768px) {
    .vault-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* View Transition */
@keyframes viewFadeIn {
    from { 
        opacity: 0; 
        transform: translateY(16px) scale(0.98); 
        filter: blur(4px);
    }
    to { 
        opacity: 1; 
        transform: translateY(0) scale(1); 
        filter: blur(0);
    }
}

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

.devos-content::-webkit-scrollbar-track {
    background: transparent;
}

.devos-content::-webkit-scrollbar-thumb {
    background: var(--os-border);
    border-radius: 10px;
}

.devos-content::-webkit-scrollbar-thumb:hover {
    background: var(--os-text-muted);
}

/* Mobile Adjustments */
@media (max-width: 1200px) {
    .bento-item.col-8 { grid-column: span 12; }
}

@media (max-width: 1024px) {
    .devos-sidebar {
        width: var(--os-sidebar-collapsed);
    }
    .nav-label, .nav-item span, .sidebar-logo {
        display: none;
    }
    .sidebar-header {
        justify-content: center;
        padding: 24px 0;
    }
    .sidebar-logo .accent-dot { display: inline; }
    .devos-statusbar {
        left: var(--os-sidebar-collapsed);
    }
    .command-search {
        width: 280px !important;
    }
}

@media (max-width: 768px) {
    .devos-shell {
        flex-direction: column;
    }
    .devos-sidebar {
        width: 100%;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--os-border);
        position: static;
    }
    .sidebar-header {
        display: none;
    }
    .sidebar-nav {
        display: flex;
        overflow-x: auto;
        padding: 8px 12px;
        gap: 4px;
        scrollbar-width: none;
        -ms-overflow-style: none;
    }
    .sidebar-nav::-webkit-scrollbar { display: none; }
    .nav-group {
        margin-bottom: 0;
        display: flex;
        gap: 4px;
    }
    .nav-label {
        display: none;
    }
    .nav-item {
        white-space: nowrap;
        padding: 10px 14px;
        font-size: 0.8rem;
    }
    .nav-item i {
        margin-right: 0;
    }
    .nav-item span {
        display: inline;
    }
    .sidebar-footer {
        display: none !important;
    }
    
    .devos-header {
        height: 56px;
        padding: 0 16px;
    }
    .command-search {
        width: 200px !important;
    }
    .command-search span {
        display: none;
    }
    .user-info {
        display: none;
    }
    
    .devos-content {
        padding: 20px 16px 48px;
    }
    
    .bento-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 12px;
    }
    .bento-item {
        border-radius: 16px;
        padding: 16px;
    }
    .bento-item.col-8 { grid-column: span 4; }
    .bento-item.col-6 { grid-column: span 4; }
    .bento-item.col-4 { grid-column: span 4; }
    .bento-item.row-2 { grid-row: span 1; }
    
    .devos-statusbar {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        height: 32px;
        font-size: 0.55rem;
        gap: 12px;
        overflow: hidden;
    }
    
    .view-section.active h1 {
        font-size: 1.5rem !important;
    }
}

@media (max-width: 480px) {
    .devos-header .system-status { display: none; }
    .command-search {
        width: 160px !important;
    }
    .devos-content {
        padding: 16px 12px 40px;
    }
    .bento-grid {
        gap: 10px;
    }
    .bento-item {
        padding: 14px;
        border-radius: 14px;
    }
}