/* ============================================
   RESPONSIVE UTILITIES - iNTERCEPT
   Shared responsive foundation for all pages
   ============================================ */

/* ============== CSS VARIABLES ============== */
:root {
    /* Touch targets */
    --touch-min: 44px;
    --touch-comfortable: 48px;

    /* Responsive spacing */
    --spacing-xs: clamp(4px, 1vw, 8px);
    --spacing-sm: clamp(8px, 2vw, 12px);
    --spacing-md: clamp(12px, 3vw, 20px);
    --spacing-lg: clamp(16px, 4vw, 32px);

    /* Responsive typography */
    --font-xs: clamp(10px, 2.5vw, 11px);
    --font-sm: clamp(11px, 2.8vw, 12px);
    --font-base: clamp(13px, 3vw, 14px);
    --font-md: clamp(14px, 3.5vw, 16px);
    --font-lg: clamp(16px, 4vw, 20px);
    --font-xl: clamp(20px, 5vw, 28px);
    --font-2xl: clamp(24px, 6vw, 40px);

    /* Header height for calculations */
    --header-height: 48px;
    --nav-height: 44px;
}

@media (min-width: 768px) {
    :root {
        --header-height: 48px;
        --nav-height: 48px;
    }
}

@media (min-width: 1024px) {
    :root {
        --header-height: 48px;
        --nav-height: 0px;
    }
}

/* ============== VIEWPORT HEIGHT FIX ============== */
/* Handles iOS Safari address bar and dynamic viewport */
.full-height {
    height: 100dvh;
    height: 100vh; /* Fallback */
}

@supports (-webkit-touch-callout: none) {
    .full-height {
        height: -webkit-fill-available;
    }
}

/* ============== HAMBURGER BUTTON ============== */
.hamburger-btn {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: var(--touch-min);
    height: var(--touch-min);
    padding: 10px;
    background: transparent;
    border: 1px solid var(--border-color, #1f2937);
    border-radius: 6px;
    cursor: pointer;
    position: relative;
    z-index: 1001;
    flex-shrink: 0;
    transition: background 0.2s ease, border-color 0.2s ease;
}

.hamburger-btn:hover {
    background: var(--bg-tertiary, #151a23);
    border-color: var(--accent-cyan, #4a9eff);
}

.hamburger-btn span {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--accent-cyan, #4a9eff);
    margin: 2px 0;
    border-radius: 1px;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.hamburger-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}

.hamburger-btn.active span:nth-child(2) {
    opacity: 0;
}

.hamburger-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -4px);
}

/* Hide hamburger on desktop */
@media (min-width: 1024px) {
    .hamburger-btn {
        display: none;
    }
}

/* ============== MOBILE DRAWER ============== */
.mobile-drawer {
    position: fixed;
    top: 0;
    left: 0;
    width: min(360px, 100vw);
    height: 100dvh;
    height: 100vh; /* Fallback */
    background: var(--bg-secondary, #0f1218);
    border-right: 1px solid var(--border-color, #1f2937);
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    z-index: 1000;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding-top: 60px;
}

.mobile-drawer.open {
    transform: translateX(0);
}

/* Show sidebar normally on desktop */
@media (min-width: 1024px) {
    .mobile-drawer {
        position: static;
        transform: none;
        width: auto;
        height: auto;
        padding-top: 0;
        z-index: auto;
    }
}

/* ============== DRAWER OVERLAY ============== */
.drawer-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(2px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    z-index: 999;
}

.drawer-overlay.visible {
    opacity: 1;
    visibility: visible;
}

/* Hide overlay on desktop */
@media (min-width: 1024px) {
    .drawer-overlay {
        display: none;
    }
}

/* ============== TOUCH TARGETS ============== */
@media (max-width: 1023px) {
    /* Ensure minimum touch target size for interactive elements */
    button,
    .btn,
    .preset-btn,
    .mode-nav-btn,
    .control-btn,
    .nav-action-btn,
    .icon-btn {
        min-height: var(--touch-min);
        min-width: var(--touch-min);
    }

    select,
    input[type="text"],
    input[type="number"],
    input[type="search"] {
        min-height: var(--touch-min);
        padding: 10px 12px;
        font-size: 16px; /* Prevents iOS zoom on focus */
    }

    .checkbox-group label,
    .radio-group label {
        min-height: var(--touch-min);
        padding: 10px 14px;
        display: flex;
        align-items: center;
    }
}

/* ============== RESPONSIVE UTILITIES ============== */
/* Hide on mobile */
.hide-mobile {
    display: none;
}

@media (min-width: 768px) {
    .hide-mobile {
        display: initial;
    }
}

/* Hide on tablet and up */
.show-mobile-only {
    display: initial;
}

@media (min-width: 768px) {
    .show-mobile-only {
        display: none;
    }
}

/* Hide on desktop */
.hide-desktop {
    display: initial;
}

@media (min-width: 1024px) {
    .hide-desktop {
        display: none;
    }
}

/* Show only on desktop */
.show-desktop-only {
    display: none;
}

@media (min-width: 1024px) {
    .show-desktop-only {
        display: initial;
    }
}

/* ============== SCROLLABLE AREAS ============== */
.scroll-x {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
}

.scroll-x::-webkit-scrollbar {
    height: 4px;
}

.scroll-x::-webkit-scrollbar-thumb {
    background: var(--border-color, #1f2937);
    border-radius: 2px;
}

/* Hide scrollbar on mobile for cleaner look */
@media (max-width: 767px) {
    .scroll-x-mobile-hidden {
        scrollbar-width: none;
    }

    .scroll-x-mobile-hidden::-webkit-scrollbar {
        display: none;
    }
}

/* ============== MOBILE NAVIGATION BAR ============== */
.mobile-nav-bar {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 10px;
    background: var(--bg-tertiary, #151a23);
    border-bottom: 1px solid var(--border-color, #1f2937);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.mobile-nav-bar::-webkit-scrollbar {
    display: none;
}

.mobile-nav-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 12px;
    background: var(--bg-card, #121620);
    border: 1px solid var(--border-color, #1f2937);
    border-radius: 6px;
    color: var(--text-secondary, #9ca3af);
    font-size: var(--font-xs);
    font-family: inherit;
    white-space: nowrap;
    cursor: pointer;
    transition: all 0.2s ease;
    min-height: 36px;
}

.mobile-nav-btn:hover,
.mobile-nav-btn.active {
    background: var(--bg-elevated, #1a202c);
    border-color: var(--accent-cyan, #4a9eff);
    color: var(--text-primary, #e8eaed);
}

.mobile-nav-btn svg {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
}

/* ============== MOBILE NAV GROUPS ============== */
.mobile-nav-group {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
}

.mobile-nav-group-label {
    font-size: 9px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-tertiary, #6b7280);
    padding: 4px 6px 4px 8px;
    white-space: nowrap;
    border-left: 2px solid var(--border-color, #1f2937);
    flex-shrink: 0;
}

.mobile-nav-group:first-child .mobile-nav-group-label {
    border-left: none;
    padding-left: 0;
}

/* ============== MOBILE NAV UTILITIES ============== */
.mobile-nav-utils {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
    padding-left: 8px;
    border-left: 2px solid var(--accent-cyan, #4a9eff);
}

/* Hide mobile nav utilities on desktop (desktop has .nav-utilities) */
@media (min-width: 1024px) {
    .mobile-nav-utils {
        display: none;
    }
}

/* ============== TABLET: WRAP MOBILE NAV ============== */
@media (min-width: 768px) and (max-width: 1023px) {
    .mobile-nav-bar {
        flex-wrap: wrap;
        overflow-x: visible;
        justify-content: center;
    }
}

/* Hide mobile nav bar on desktop */
@media (min-width: 1024px) {
    .mobile-nav-bar {
        display: none;
    }
}

/* ============== RESPONSIVE GRID UTILITIES ============== */
.grid-responsive {
    display: grid;
    gap: var(--spacing-sm);
}

/* 1 column base */
.grid-1-2 {
    grid-template-columns: 1fr;
}

@media (min-width: 480px) {
    .grid-1-2 {
        grid-template-columns: repeat(2, 1fr);
    }
}

.grid-2-3 {
    grid-template-columns: repeat(2, 1fr);
}

@media (min-width: 768px) {
    .grid-2-3 {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ============== TYPOGRAPHY RESPONSIVE ============== */
.text-responsive-xs { font-size: var(--font-xs); }
.text-responsive-sm { font-size: var(--font-sm); }
.text-responsive-base { font-size: var(--font-base); }
.text-responsive-md { font-size: var(--font-md); }
.text-responsive-lg { font-size: var(--font-lg); }
.text-responsive-xl { font-size: var(--font-xl); }
.text-responsive-2xl { font-size: var(--font-2xl); }

/* Ensure minimum readable sizes for tiny text */
.text-min-readable {
    font-size: max(10px, var(--font-xs));
}

/* ============== MOBILE LAYOUT FIXES ============== */
@media (max-width: 1023px) {
    /* Fix main content to allow scrolling on mobile */
    .app-shell .main-content {
        height: auto;
        min-height: calc(100dvh - var(--header-height) - var(--nav-height));
        overflow-y: auto;
        overflow-x: hidden;
        -webkit-overflow-scrolling: touch;
    }

    .app-shell .sidebar {
        padding: 10px;
        gap: 10px;
    }

    .app-shell .output-panel {
        min-height: 58vh;
    }

    .app-shell .output-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .app-shell .header-controls {
        width: 100%;
        gap: 8px;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding-bottom: 2px;
    }

    .app-shell .header-controls .stats {
        min-width: max-content;
    }

    /* Container should not clip content */
    .app-shell .container {
        overflow: visible;
        height: auto;
        min-height: 100dvh;
    }

    /* Layout containers need to stack vertically on mobile */
    /* overrides inline style - JS sets display via style attribute */
    .app-shell .wifi-layout-container,
    .app-shell .bt-layout-container {
        flex-direction: column !important;
        height: auto !important;
        max-height: none !important;
        min-height: auto !important;
        overflow: visible !important;
        padding: 10px !important;
    }

    /* Visual panels should be scrollable, not clipped */
    .app-shell .wifi-visuals,
    .app-shell .bt-visuals-column {
        max-height: none;
        overflow: visible;
        margin-bottom: 15px;
    }

    /* Device lists should have reasonable height on mobile */
    .app-shell .wifi-device-list,
    .app-shell .bt-device-list {
        max-height: 400px;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    /* Visual panels should stack in single column on mobile when visible */
    .app-shell .wifi-visuals,
    .app-shell .bt-visuals-column {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }

    /* Stack aircraft visuals vertically on mobile when active */
    #aircraftVisuals.active {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }

    /* APRS visuals stack vertically on mobile */
    .app-shell #aprsVisuals {
        flex-direction: column;
    }

    .app-shell .wifi-visual-panel {
        grid-column: auto;
    }

    .app-shell .bt-main-area {
        flex-direction: column;
        min-height: auto;
    }

    .app-shell .bt-side-panels {
        width: 100%;
        flex-direction: column;
    }

    .app-shell .bt-detail-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .app-shell .bt-row-secondary {
        padding-left: 0;
        white-space: normal;
    }

    .app-shell .bt-row-actions {
        padding-left: 0;
        justify-content: flex-start;
    }

    .app-shell .bt-list-summary {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

/* ============== MOBILE MAP FIXES ============== */
@media (max-width: 1023px) {
    /* Aircraft map container needs explicit height on mobile */
    .app-shell .aircraft-map-container {
        height: 300px;
        min-height: 300px;
        width: 100%;
    }

    .app-shell #aircraftMap {
        height: 100%;
        width: 100%;
        min-height: 250px;
    }

    /* APRS map container */
    .app-shell #aprsMap {
        min-height: 300px;
        height: 300px;
        width: 100%;
    }

    /* Satellite embed */
    .app-shell .satellite-dashboard-embed {
        height: 400px;
        min-height: 400px;
    }

    /* Map panels should be full width */
    /* overrides inline style - HTML sets grid-column via style attribute */
    .wifi-visual-panel[style*="grid-column: span 2"] {
        grid-column: auto !important;
    }

    /* Make map container full width when it has ACARS sidebar */
    /* overrides inline style - HTML sets flex-direction via style attribute */
    .wifi-visual-panel[style*="display: flex"][style*="gap: 0"] {
        flex-direction: column !important;
    }

    /* ACARS sidebar should be below map on mobile */
    .app-shell .main-acars-sidebar {
        width: 100%;
        max-width: none;
        border-left: none;
        border-top: 1px solid var(--border-color, #1f2937);
    }

    .app-shell .main-acars-sidebar.collapsed {
        width: 100%;
    }

    .app-shell .main-acars-content {
        max-height: 200px;
    }
}

/* ============== LEAFLET MOBILE TOUCH FIXES ============== */
.leaflet-container {
    touch-action: pan-x pan-y;
    -webkit-tap-highlight-color: transparent;
}

.leaflet-control-zoom {
    touch-action: manipulation;
}

.app-shell .leaflet-container .leaflet-control-zoom a {
    min-width: var(--touch-min, 44px);
    min-height: var(--touch-min, 44px);
    line-height: var(--touch-min, 44px);
    font-size: 18px;
}

/* ============== MOBILE HEADER STATS ============== */
@media (max-width: 1023px) {
    .app-shell .header-stats {
        display: none;
    }

    /* Simplify header on mobile */
    .app-shell header h1 {
        font-size: 16px;
    }

    .app-shell header h1 .tagline {
        display: none;
    }

    .app-shell header .version-badge {
        display: none;
    }

    .app-shell header .active-mode-indicator {
        font-size: 9px;
        padding: 3px 8px;
    }

    .app-shell header .logo svg {
        width: 30px;
        height: 30px;
    }
}

/* ============== MOBILE MODE PANELS ============== */
@media (max-width: 1023px) {
    /* Mode panel grids should be single column */
    .app-shell .data-grid,
    .app-shell .stats-grid,
    .app-shell .sensor-grid {
        grid-template-columns: 1fr;
    }

    /* Section headers should be easier to tap */
    .app-shell .section h3 {
        min-height: var(--touch-min);
        padding: 12px;
    }

    /* Tables need horizontal scroll */
    .message-table,
    .sensor-table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    /* Ensure messages list is scrollable */
    #messageList,
    #sensorGrid,
    .aprs-list {
        max-height: 60vh;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }
}

/* ============== WELCOME PAGE MOBILE ============== */
@media (max-width: 767px) {
    .app-shell .welcome-container {
        padding: 15px;
        max-width: 100%;
    }

    .app-shell .welcome-header {
        flex-wrap: wrap;
        justify-content: center;
        gap: 6px 10px;
    }

    .app-shell .welcome-logo svg {
        width: 40px;
        height: 40px;
    }

    .app-shell .welcome-title {
        font-size: 1.2rem;
    }

    .app-shell .welcome-content {
        grid-template-columns: 1fr;
    }

    .app-shell .mode-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }

    .app-shell .mode-card {
        padding: 12px 8px;
    }

    .app-shell .mode-icon {
        font-size: 20px;
    }

    .app-shell .mode-name {
        font-size: 11px;
    }

    .app-shell .mode-desc {
        font-size: 9px;
    }

    .app-shell .changelog-release {
        padding: 10px;
    }
}

/* ============== TSCM MODE MOBILE ============== */
@media (max-width: 1023px) {
    .app-shell .tscm-layout {
        flex-direction: column;
        height: auto;
    }

    .app-shell .tscm-spectrum-panel,
    .app-shell .tscm-detection-panel {
        width: 100%;
        max-width: none;
        height: auto;
        min-height: 300px;
    }
}

/* ============== LISTENING POST MOBILE ============== */
@media (max-width: 1023px) {
    .app-shell .radio-controls-section {
        flex-direction: column;
        gap: 15px;
    }

    .app-shell .knobs-row {
        flex-wrap: wrap;
        justify-content: center;
    }

    .app-shell .radio-module-box {
        width: 100%;
    }
}