/* ============================================
   INFINITY OS - RESPONSIVE STYLES
   Mobile-First Breakpoints
   ============================================ */

/* ============================================
   BREAKPOINTS
   xs: 0px
   sm: 640px
   md: 768px
   lg: 1024px
   xl: 1280px
   2xl: 1536px
   ============================================ */

/* ============================================
   TABLET (max-width: 1024px)
   ============================================ */

@media (max-width: 1024px) {
    .infinity-sidebar {
        transform: translateX(-240px);
    }
    
    body.sidebar-open .infinity-sidebar {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .header-container {
        grid-template-columns: auto 1fr auto;
        gap: var(--space-md);
    }
    
    .header-center {
        justify-content: flex-end;
        gap: var(--space-md);
    }
    
    .weather-widget {
        display: none;
    }
    
    /* Hide Quick Actions button text on smaller screens */
    .quick-actions-btn span {
        display: none;
    }
    
    .quick-actions-btn {
        padding: var(--space-sm);
    }
}

/* ============================================
   MOBILE (max-width: 768px)
   ============================================ */

@media (max-width: 768px) {
    .header-container {
        padding: 0 var(--space-md);
        gap: var(--space-sm);
    }
    
    .company-name {
        font-size: 1rem;
        max-width: 100px;
    }
    
    .user-name {
        display: none;
    }
    
    /* Hide clock date on mobile */
    .clock-widget .widget-label {
        display: none;
    }
    
    .main-content {
        padding: var(--space-lg);
        margin-bottom: 64px;
    }
    
    .bottom-nav {
        display: flex;
    }
    
    .slide-over-panel {
        width: 100%;
        max-width: 100%;
    }
    
    .messenger {
        bottom: 80px;
    }
    
    h1 { font-size: 1.875rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }
}

/* ============================================
   SMALL MOBILE (max-width: 640px)
   ============================================ */

@media (max-width: 640px) {
    .header-center .widget-label {
        display: none;
    }
    
    .header-center {
        gap: var(--space-sm);
    }
    
    .clock-widget {
        flex-direction: row;
        align-items: center;
    }
    
    .clock-widget .widget-value {
        font-size: 0.875rem;
    }
    
    .company-name {
        max-width: 80px;
    }
    
    /* Ensure header doesn't overflow on very small screens */
    .header-container {
        padding: 0 var(--space-sm);
    }
    
    .main-content {
        padding: var(--space-md);
    }
    
    .infinity-card {
        padding: var(--space-md);
    }
    
    .metric-card {
        flex-direction: column;
        text-align: center;
    }
    
    .metric-value {
        font-size: 1.5rem;
    }
    
    .messenger-panel {
        width: calc(100vw - var(--space-lg) * 2);
    }
}

/* ============================================
   LARGE DESKTOP (min-width: 1536px)
   ============================================ */

@media (min-width: 1536px) {
    .main-content {
        max-width: 1400px;
        margin-left: auto;
        margin-right: auto;
        padding-left: 280px;
    }
}

/* ============================================
   MOBILE SIDEBAR OVERLAY
   ============================================ */

@media (max-width: 1024px) {
    .sidebar-backdrop {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.7);
        opacity: 0;
        pointer-events: none;
        transition: opacity var(--transition-base);
        z-index: 85;
    }
    
    body.sidebar-open .sidebar-backdrop {
        opacity: 1;
        pointer-events: all;
    }
    
    .infinity-sidebar {
        position: fixed;
        z-index: 90;
    }
}

/* ============================================
   TOUCH DEVICE OPTIMIZATIONS
   ============================================ */

@media (hover: none) and (pointer: coarse) {
    .infinity-btn,
    .nav-link,
    .bottom-nav-item {
        min-height: 44px;
    }
    
    .hover-lift:hover {
        transform: none;
    }
    
    .infinity-card:hover {
        transform: none;
    }
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
    .infinity-header,
    .infinity-sidebar,
    .slide-over,
    .messenger,
    .bottom-nav {
        display: none;
    }
    
    .main-content {
        margin: 0;
        padding: 0;
    }
    
    .infinity-card {
        break-inside: avoid;
        border: 1px solid #ccc;
    }
}

/* ============================================
   LANDSCAPE ORIENTATION
   ============================================ */

@media (max-width: 768px) and (orientation: landscape) {
    .infinity-header {
        height: 56px;
    }
    
    .main-content {
        margin-top: 56px;
    }
    
    .bottom-nav {
        height: 56px;
    }
}