/* vCrew FDM */

:root {
    /* ── Brand blues (identical to EFB) ─────────────────────────── */
    --b1:          #154B96;
    --b2:          #2160B8;
    --b3:          #4A84D8;
    --bg:          #E8EFF8;
    --card:        #FFFFFF;
    --input-bg:    #F1F5FC;
    --row-sub:     #F5F8FD;
    --border:      #D0DFF0;
    --border-row:  #EBF1FA;
    --t1:          #0B1B3D;
    --t2:          #2D4470;
    --t3:          #7A8FA8;
    --green:       #16A34A;
    --green-bg:    #F0FDF4;
    --red:         #DC2626;
    --red-bg:      #FEF2F2;
    --header-grad: linear-gradient(90deg, #154B96 0%, #2160B8 100%);
    --shadow:      0 1px 3px rgba(21,75,150,0.08), 0 4px 16px rgba(21,75,150,0.07);

    /* ── FDM landing grade colours ──────────────────────────────── */
    --grade-perfect: #16A34A;
    --grade-regular: #2563EB;
    --grade-firm:    #D97706;
    --grade-rough:   #EA580C;
    --grade-hard:    #DC2626;

    /* ── FDM severity colours ────────────────────────────────────── */
    --sev-passed:   #16A34A;
    --sev-info:     #0891B2;
    --sev-caution:  #D97706;
    --sev-warning:  #EA580C;
    --sev-critical: #DC2626;
    --sev-failed:   #DC2626;
}

/* ── DARK MODE ────────────────────────────────────────────────────────────── */
body.dark-mode {
    --bg:         #060F1C;
    --card:       #0D1B30;
    --input-bg:   #091524;
    --row-sub:    #091524;
    --border:     #1A3A60;
    --border-row: #132A4A;
    --t1:         #D0E4FF;
    --t2:         #94A3B8;
    --t3:         #64748B;
    --shadow:     0 1px 3px rgba(0,0,0,0.4), 0 4px 16px rgba(0,0,0,0.35);
}

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

html { height: 100%; touch-action: manipulation; -webkit-text-size-adjust: 100%; }

body {
    font-family: 'IBM Plex Sans', 'Helvetica Neue', sans-serif;
    font-size: 12px; background: var(--bg); color: var(--t1);
    line-height: 1.4; height: 100%; -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    touch-action: manipulation;
}

.screen { width: 100%; min-height: 100svh; }
.hidden { display: none !important; }

/* ── LOADING OVERLAY ──────────────────────────────────────────────────── */
#loading-overlay {
    position: fixed; inset: 0; z-index: 9999;
    background: rgba(232,239,248,0.75); backdrop-filter: blur(4px);
    display: flex; align-items: center; justify-content: center;
}
.loading-spinner {
    width: 32px; height: 32px;
    border: 3px solid var(--border);
    border-top-color: var(--b2);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── ERROR BANNER ─────────────────────────────────────────────────────── */
#error-banner {
    position: fixed; top: 0; left: 0; right: 0; z-index: 9998;
    background: var(--red); color: #fff;
    padding: 10px 16px; font-size: 12px; font-weight: 600;
    text-align: center; transform: translateY(-100%);
    transition: transform 0.25s ease;
}
#error-banner.visible { transform: translateY(0); }

/* ── LOGIN ────────────────────────────────────────────────────────────── */
#screen-login {
    display: flex; align-items: center; justify-content: center;
    min-height: 100svh;
    background: linear-gradient(145deg, #C4D8EE 0%, #E8EFF8 55%);
}
.login-card {
    background: var(--card); border: 1px solid var(--border);
    border-radius: 14px; padding: 40px; width: 360px;
    box-shadow: 0 8px 32px rgba(21,75,150,0.13);
}
.login-logo {
    text-align: center; margin-bottom: 8px;
    font-size: 26px; font-weight: 700; color: var(--b1); letter-spacing: 3px;
}
.login-subtitle {
    text-align: center; font-size: 10px; color: var(--t3);
    letter-spacing: 2.5px; text-transform: uppercase; margin-bottom: 32px;
}
.login-card label {
    display: block; font-size: 10px; font-weight: 600; color: var(--t3);
    margin-bottom: 5px; text-transform: uppercase; letter-spacing: 0.1em;
}
.login-card input {
    width: 100%; padding: 10px 14px;
    background: var(--input-bg); border: 1.5px solid var(--border);
    border-radius: 8px; color: var(--t1);
    font-size: 13px; font-family: 'IBM Plex Mono', monospace; margin-bottom: 16px;
    transition: border-color 0.15s, box-shadow 0.15s;
}
.login-card input:focus { outline: none; border-color: var(--b2); box-shadow: 0 0 0 3px rgba(33,96,184,0.14); }
.btn-login {
    width: 100%; padding: 12px; background: var(--header-grad);
    color: #fff; border: none; border-radius: 8px;
    font-size: 13px; font-weight: 700; letter-spacing: 0.06em;
    cursor: pointer; transition: opacity 0.2s; font-family: inherit;
}
.btn-login:active { opacity: 0.82; }
.login-error { color: var(--red); font-size: 11px; margin-top: 10px; text-align: center; min-height: 16px; }

/* ── TOPBAR ───────────────────────────────────────────────────────────── */
.topbar {
    background: var(--card); border-bottom: 1px solid var(--border);
    padding: 10px 16px; display: flex; align-items: center; justify-content: space-between;
    position: sticky; top: 0; z-index: 100;
    box-shadow: 0 2px 8px rgba(21,75,150,0.07);
    padding-top: max(10px, env(safe-area-inset-top));
}
.topbar-left    { display: flex; align-items: center; gap: 10px; }
.topbar-actions { display: flex; align-items: center; gap: 6px; }
.topbar-pilot-code {
    font-size: 10px; font-weight: 700; color: var(--t2);
    font-family: 'IBM Plex Mono', monospace; letter-spacing: 0.05em;
}
.topbar-back {
    background: none; border: none; cursor: pointer;
    font-size: 18px; color: var(--b2); padding: 2px 6px 2px 0;
    display: flex; align-items: center; line-height: 1;
}
.topbar-title {
    font-size: 11px; font-weight: 700; color: var(--b1);
    letter-spacing: 0.14em; text-transform: uppercase;
}
.topbar-subtitle {
    font-size: 10px; color: var(--t3); font-family: 'IBM Plex Mono', monospace;
}
.btn-sm {
    padding: 5px 13px; font-size: 10px; border: none; border-radius: 9999px;
    cursor: pointer; font-weight: 700; letter-spacing: 0.07em; text-transform: uppercase;
    transition: opacity 0.15s; font-family: inherit;
}
.btn-logout { background: var(--red-bg); color: var(--red); border: 1.5px solid #FECACA; }
.btn-logout:active { opacity: 0.8; }

/* ── BOTTOM NAVIGATION ────────────────────────────────────────────────── */
.bottom-nav {
    position: fixed; bottom: 0; left: 0; right: 0; z-index: 200;
    display: flex;
    background: var(--card); border-top: 1px solid var(--border);
    box-shadow: 0 -2px 12px rgba(21,75,150,0.08);
    padding-bottom: env(safe-area-inset-bottom, 0px);
    transform: translateZ(0);
    backface-visibility: hidden;
    will-change: transform;
}
.nav-tab {
    flex: 1; display: flex; flex-direction: column;
    align-items: center; justify-content: center; gap: 3px;
    padding: 9px 4px; background: none; border: none;
    cursor: pointer; color: var(--t3);
    -webkit-tap-highlight-color: transparent;
    transition: color 0.15s;
}
.nav-tab.nav-tab-active { color: var(--b2); }
.nav-tab:active { opacity: 0.7; }
.nav-icon { display: block; width: 22px; height: 22px; }
.nav-label {
    font-size: 9px; font-weight: 700; letter-spacing: 0.08em;
    text-transform: uppercase; font-family: 'IBM Plex Mono', monospace;
}

/* ── GROUND CONTROL SCREEN ────────────────────────────────────────────── */
#screen-ground {
    display: flex; flex-direction: column;
    background: #060F1C; min-height: 100svh;
}

.ground-topbar {
    background: #0A1828 !important;
    border-bottom-color: #1A3A60 !important;
}
.ground-topbar .topbar-title { color: #D0E4FF; }

/* Connection status pill */
.xp-status-wrap {
    display: flex; align-items: center; gap: 6px;
    font-size: 10px; font-weight: 600;
    letter-spacing: 0.06em; text-transform: uppercase;
}
.xp-dot {
    width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0;
    transition: background 0.3s, box-shadow 0.3s;
}
.xp-on  { background: #16A34A; box-shadow: 0 0 7px rgba(22,163,74,0.75); }
.xp-off { background: #334155; }
.xp-status-text { color: #64748B; font-size: 10px; }

.xp-cfg-btn {
    background: none; border: 1px solid #243554; border-radius: 6px;
    color: #64748B; cursor: pointer; font-size: 15px;
    padding: 3px 8px; line-height: 1;
    transition: color 0.15s, border-color 0.15s;
}
.xp-cfg-btn:hover { color: #D0E4FF; border-color: #4A84D8; }

/* Sign-Out — dark mode (both screens) */
body.dark-mode .btn-logout,
body.dark-mode .gnd-signout-btn {
    background: rgba(220,38,38,0.12) !important;
    color: #F87171 !important;
    border: 1.5px solid rgba(220,38,38,0.3) !important;
}

/* XP status pill in the light OFDM topbar */
.xp-status-light .xp-status-text { color: var(--t3); }

/* Refresh button spin */
@keyframes refreshSpin { to { transform: rotate(360deg); } }
#ofdm-refresh-btn.refreshing svg { animation: refreshSpin 0.7s linear infinite; }

/* Theme toggle button */
.btn-theme {
    background: var(--input-bg); color: var(--t2);
    border: 1.5px solid var(--border);
    display: inline-flex; align-items: center; justify-content: center;
    width: 32px; padding: 0;
}
.btn-theme:hover { border-color: var(--b3); color: var(--b2); }

/* ── LIGHT MODE: Ground Control overrides ────────────────────────────────── */
body:not(.dark-mode) #screen-ground          { background: var(--bg); }
body:not(.dark-mode) .ground-topbar          { background: var(--card) !important; border-bottom-color: var(--border) !important; }
body:not(.dark-mode) .ground-topbar .topbar-title { color: var(--b1) !important; }
body:not(.dark-mode) .xp-status-wrap .xp-status-text { color: var(--t3); }
body:not(.dark-mode) .xp-cfg-btn            { border-color: var(--border) !important; color: var(--t2) !important; }
body:not(.dark-mode) .xp-cfg-btn:hover      { border-color: var(--b3) !important; color: var(--b2) !important; }
body:not(.dark-mode) .aircraft-img          { filter: none; }
body:not(.dark-mode) .gnd-btn {
    background: rgba(255,255,255,0.92) !important;
    border-color: var(--border) !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    box-shadow: var(--shadow) !important;
}
body:not(.dark-mode) .gnd-btn .gnd-lbl      { color: var(--t2) !important; }
body:not(.dark-mode) .gnd-btn .gnd-status   { color: var(--t3) !important; }
body:not(.dark-mode) .gnd-btn.gnd-active    { background: rgba(22,163,74,0.12) !important; border-color: #16A34A !important; box-shadow: 0 0 8px rgba(22,163,74,0.2) !important; }
body:not(.dark-mode) .gnd-equip.gnd-active  { background: rgba(37,99,235,0.10) !important; border-color: #2563EB !important; }
body:not(.dark-mode) .gnd-cargo.gnd-active  { background: rgba(251,191,36,0.12) !important; border-color: #D97706 !important; }
body:not(.dark-mode) .gnd-btn.gnd-active .gnd-lbl { color: var(--t1) !important; }
body:not(.dark-mode) .ac-connector          { stroke: rgba(21,75,150,0.30); }
body:not(.dark-mode) .ac-door               { fill: rgba(21,75,150,0.10); stroke: rgba(21,75,150,0.4); }
body:not(.dark-mode) .ac-cargo-door         { fill: rgba(217,119,6,0.10); stroke: rgba(217,119,6,0.4); }

/* ── DARK MODE: OFDM extra tweaks ────────────────────────────────────────── */
body.dark-mode .topbar                      { box-shadow: 0 2px 8px rgba(0,0,0,0.3); }
body.dark-mode .report-card                 { box-shadow: var(--shadow); }
body.dark-mode .bottom-nav                  { box-shadow: 0 -2px 12px rgba(0,0,0,0.35); }
body.dark-mode .login-card                  { box-shadow: 0 8px 32px rgba(0,0,0,0.4); }
body.dark-mode .grade-perfect               { background: rgba(22,163,74,0.15); }
body.dark-mode .grade-regular               { background: rgba(37,99,235,0.15); }
body.dark-mode .grade-firm                  { background: rgba(217,119,6,0.15); }
body.dark-mode .grade-rough                 { background: rgba(234,88,12,0.15); }
body.dark-mode .grade-hard                  { background: rgba(220,38,38,0.15); }
body.dark-mode .sev-passed                  { background: rgba(22,163,74,0.15); }
body.dark-mode .sev-info                    { background: rgba(8,145,178,0.15); }
body.dark-mode .sev-caution                 { background: rgba(217,119,6,0.15); }
body.dark-mode .sev-warning                 { background: rgba(234,88,12,0.15); }
body.dark-mode .sev-critical,
body.dark-mode .sev-failed                  { background: rgba(220,38,38,0.15); }
body.dark-mode .cond-imc                    { background: rgba(37,99,235,0.15); }
body.dark-mode .cond-vmc                    { background: rgba(22,163,74,0.15); }
body.dark-mode .btn-load-more               { background: var(--card); border-color: var(--border); }
body.dark-mode .btn-load-more:hover         { background: var(--row-sub); }
body.dark-mode .dash-page-btn              { background: var(--card); border-color: var(--border); }
body.dark-mode .dash-page-btn:hover        { background: var(--row-sub); }

/* Ground screen needs explicit flex-column so height:100% resolves on children */
#screen-ground {
    display: flex;
    flex-direction: column;
    height: 100svh;
    height: 100vh; /* fallback for older browsers */
}

/* Aircraft view container */
.ground-body {
    flex: 1; display: flex; align-items: center; justify-content: center;
    padding: 8px 8px calc(72px + env(safe-area-inset-bottom, 0px));
    min-height: 0; overflow: hidden;
}
.aircraft-wrapper {
    position: relative;
    height: 100%;           /* sizing anchor: height fills flex parent */
    aspect-ratio: 400 / 640;
    max-width: 100%;        /* cap width on very narrow screens */
}
.aircraft-inner { position: absolute; inset: 0; }
.aircraft-svg   { width: 100%; height: 100%; }
.aircraft-img {
    display: block; width: 100%; height: 100%;
    filter: invert(1) sepia(1) saturate(2) hue-rotate(185deg) brightness(0.65);
    pointer-events: none;
}
.aircraft-overlay {
    position: absolute; inset: 0;
    width: 100%; height: 100%;
    pointer-events: none; overflow: visible;
}

/* SVG aircraft elements */
.ac-wing          { stroke: #3a6ab8; stroke-width: 1; stroke-linejoin: round; }
.ac-pylon         { fill: #1a3258; }
.ac-engine        { fill: #142840; stroke: #2a5090; stroke-width: 0.8; }
.ac-engine-inlet  { fill: #203c6a; }
.ac-stab          { stroke: #3a6ab8; stroke-width: 1; stroke-linejoin: round; }
.ac-fuselage      { stroke: #5080c8; stroke-width: 1.5; }
.ac-windows       { fill: rgba(130,180,255,0.07); }
.ac-connector     { stroke: rgba(74,132,216,0.50); stroke-width: 0.9;
                    stroke-dasharray: 4 4; }
.ac-door          { fill: rgba(74,132,216,0.18); stroke: rgba(130,180,255,0.75);
                    stroke-width: 1; }
.ac-cargo-door    { fill: rgba(251,191,36,0.14); stroke: rgba(251,191,36,0.65);
                    stroke-width: 1; }
.ac-gear          { fill: #3a6090; }

/* Ground control buttons */
.gnd-btn {
    position: absolute; transform: translate(-50%, -50%);
    display: flex; flex-direction: column;
    align-items: center; justify-content: center; gap: 3px;
    width: 52px; min-height: 44px; padding: 7px 4px;
    background: rgba(8, 18, 36, 0.90);
    border: 1.5px solid #243554; border-radius: 8px;
    cursor: pointer;
    transition: background 0.15s, border-color 0.2s, box-shadow 0.2s;
    -webkit-tap-highlight-color: transparent;
    backdrop-filter: blur(6px);
}
.gnd-btn:active { transform: translate(-50%, -50%) scale(0.91); }

/* Door buttons – active = green */
.gnd-btn.gnd-active {
    background: rgba(22,163,74,0.22);
    border-color: #16A34A;
    box-shadow: 0 0 10px rgba(22,163,74,0.30);
}
/* Equipment (chocks/GPU) – active = blue */
.gnd-equip.gnd-active {
    background: rgba(37,99,235,0.22);
    border-color: #2563EB;
    box-shadow: 0 0 10px rgba(37,99,235,0.30);
}
/* Cargo doors – active = amber */
.gnd-cargo.gnd-active {
    background: rgba(251,191,36,0.18);
    border-color: #FBB724;
    box-shadow: 0 0 10px rgba(251,191,36,0.28);
}

.gnd-lbl {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 9px; font-weight: 700; color: #94A3B8;
    letter-spacing: 0.05em; text-transform: uppercase; line-height: 1;
}
.gnd-btn.gnd-active .gnd-lbl { color: #E0F2FE; }

.gnd-status {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 8px; font-weight: 800; color: #334155;
    letter-spacing: 0.08em; text-transform: uppercase; line-height: 1;
}
.gnd-btn.gnd-active               .gnd-status { color: #4ADE80; }
.gnd-equip.gnd-active             .gnd-status { color: #60A5FA; }
.gnd-cargo.gnd-active             .gnd-status { color: #FCD34D; }

/* Door/cargo in motion – amber */
.gnd-btn.gnd-moving {
    background: rgba(245,158,11,0.82) !important;
    border-color: #F59E0B !important;
    box-shadow: 0 0 14px rgba(245,158,11,0.7) !important;
    -webkit-backdrop-filter: none !important;
    backdrop-filter: none !important;
    transition: none !important;
}
.gnd-btn.gnd-moving .gnd-lbl    { color: #1a0f00 !important; }
.gnd-btn.gnd-moving .gnd-status { color: #1a0f00 !important; }

/* Pushback request — standalone CTA (Zibo / X-Plane only) */
.gnd-pushback-btn {
    position: absolute; transform: translateY(-50%);
    display: inline-flex; align-items: center; gap: 6px;
    padding: 9px 16px;
    background: var(--header-grad);
    border: none; border-radius: 9999px;
    color: #fff; font-family: 'IBM Plex Mono', monospace;
    font-size: 10px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
    white-space: nowrap; cursor: pointer;
    box-shadow: 0 2px 10px rgba(21,75,150,0.35);
    transition: opacity 0.15s, transform 0.1s;
    -webkit-tap-highlight-color: transparent;
}
.gnd-pushback-btn:active { transform: translateY(-50%) scale(0.95); opacity: 0.85; }

/* Tap feedback pulse */
@keyframes gndPulse {
    0%   { box-shadow: 0 0 0 0   rgba(74,132,216,0.65); }
    100% { box-shadow: 0 0 0 12px rgba(74,132,216,0); }
}
@keyframes gndPulseErr {
    0%   { box-shadow: 0 0 0 0   rgba(220,38,38,0.65); }
    100% { box-shadow: 0 0 0 12px rgba(220,38,38,0); }
}
.gnd-pulse     { animation: gndPulse    0.5s ease-out; }
.gnd-pulse-err { animation: gndPulseErr 0.5s ease-out; }

/* ── GSX PRO GROUND-SERVICES PANEL (MSFS/GSX ground-handling provider) ──── */
.gsx-panel {
    width: 100%; height: 100%; max-width: 960px;
    display: flex; flex-direction: column; gap: 12px;
}
.gsx-panel-header {
    display: flex; align-items: center; justify-content: space-between;
    flex-shrink: 0;
}
.gsx-panel-title {
    font-size: 18px; font-weight: 800; color: var(--t1); letter-spacing: 0.01em;
}
.gsx-status-pill {
    font-size: 10px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
    padding: 5px 14px; border-radius: 9999px;
    font-family: 'IBM Plex Mono', monospace;
    background: var(--row-sub); color: var(--t3); border: 1px solid var(--border);
}
.gsx-status-pill.gsx-ok  { background: rgba(22,163,74,0.12); color: #16A34A; border-color: rgba(22,163,74,0.35); }
.gsx-status-pill.gsx-bad { background: rgba(220,38,38,0.12); color: #DC2626; border-color: rgba(220,38,38,0.35); }

.gsx-panel-cols { flex: 1; display: flex; gap: 12px; min-height: 0; }
.gsx-card {
    background: var(--card); border: 1px solid var(--border);
    border-radius: 12px; padding: 14px 16px; box-shadow: var(--shadow);
    display: flex; flex-direction: column; min-height: 0;
}
.gsx-menu-card   { flex: 11; }
.gsx-status-card { flex: 9; overflow-y: auto; }
.gsx-card-title {
    font-size: 9px; font-weight: 800; color: var(--t3);
    text-transform: uppercase; letter-spacing: 0.14em;
    margin-bottom: 10px; flex-shrink: 0;
}

.gsx-menu-title {
    font-size: 14px; font-weight: 700; color: var(--t1);
    margin-bottom: 10px; min-height: 18px; flex-shrink: 0;
}
.gsx-menu-list { flex: 1; overflow-y: auto; padding-right: 4px; min-height: 0; }
.gsx-menu-empty { font-size: 11px; color: var(--t3); padding: 8px 2px; }

.gsx-menu-btn {
    display: block; width: 100%; text-align: left; margin: 0 0 8px 0;
    padding: 11px 14px; background: var(--input-bg);
    border: 1px solid var(--border); border-radius: 8px;
    color: var(--t1); font-size: 12px; font-weight: 600; font-family: inherit;
    cursor: pointer; transition: background 0.15s, border-color 0.15s;
    -webkit-tap-highlight-color: transparent;
}
.gsx-menu-btn:hover  { border-color: var(--b3); }
.gsx-menu-btn:active { background: var(--row-sub); transform: scale(0.98); }

.gsx-menu-open-btn {
    margin-top: 10px; padding: 12px; width: 100%; flex-shrink: 0;
    background: linear-gradient(90deg, #C25A1E 0%, #E8762C 100%);
    border: 0; border-radius: 8px; color: #fff;
    font-size: 11px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase;
    cursor: pointer; font-family: inherit; transition: opacity 0.15s;
}
.gsx-menu-open-btn:active { opacity: 0.85; }

.gsx-tile {
    display: flex; justify-content: space-between; align-items: baseline;
    padding: 9px 2px; border-bottom: 1px solid var(--border-row);
}
.gsx-tile-lbl { font-size: 11px; color: var(--t2); font-weight: 600; }
.gsx-tile-val {
    font-family: 'IBM Plex Mono', monospace; font-size: 11px; font-weight: 700;
    color: var(--t3); text-transform: uppercase;
}
.gsx-tile-val.gsx-st4 { color: #D97706; } /* requested */
.gsx-tile-val.gsx-st5 { color: #2563EB; } /* active */
.gsx-tile-val.gsx-st6 { color: #16A34A; } /* completed */

.gsx-tile-detail {
    font-size: 10px; color: var(--t3); font-family: 'IBM Plex Mono', monospace;
    padding: 0 2px 10px 2px; border-bottom: 1px solid var(--border-row);
}

.gsx-diag {
    margin-top: auto; padding-top: 10px; font-size: 9px; color: var(--t3);
    font-family: 'IBM Plex Mono', monospace; opacity: 0.6;
}

@media (max-width: 700px) {
    .gsx-panel-cols { flex-direction: column; overflow-y: auto; }
    .gsx-menu-card, .gsx-status-card { flex: none; }
}

/* ── OFDM PLACEHOLDER ─────────────────────────────────────────────────── */
#screen-ofdm { display: flex; flex-direction: column; background: var(--bg); }
.placeholder-body {
    flex: 1; display: flex; flex-direction: column;
    align-items: center; justify-content: center; gap: 12px;
    padding: 40px; text-align: center; color: var(--t3);
    padding-bottom: calc(80px + env(safe-area-inset-bottom, 0px));
}
.placeholder-icon  { font-size: 52px; opacity: 0.25; line-height: 1; }
.placeholder-title { font-size: 20px; font-weight: 700; color: var(--t2); }
.placeholder-sub   { font-size: 12px; max-width: 280px; line-height: 1.6; }

/* ── X-PLANE SETTINGS MODAL ───────────────────────────────────────────── */
.modal-overlay {
    position: fixed; inset: 0; z-index: 9000;
    background: rgba(0,0,0,0.65);
    display: flex; align-items: center; justify-content: center;
    padding: 20px; backdrop-filter: blur(5px);
}
.modal-card {
    background: #0D1B30; border: 1px solid #2A4A7A;
    border-radius: 16px; padding: 24px;
    width: 100%; max-width: 340px;
    display: flex; flex-direction: column; gap: 12px;
    box-shadow: 0 24px 60px rgba(0,0,0,0.55);
}
.modal-hdr {
    font-size: 13px; font-weight: 700; color: #D0E4FF;
    letter-spacing: 0.1em; text-transform: uppercase;
}
.modal-field-label {
    font-size: 10px; font-weight: 600; color: #475569;
    text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: -4px;
}
.modal-input {
    width: 100%; background: #091524;
    border: 1.5px solid #2A4A7A; border-radius: 8px;
    color: #D0E4FF; font-family: 'IBM Plex Mono', monospace;
    font-size: 14px; padding: 10px 12px;
    transition: border-color 0.15s;
}
.modal-input:focus { outline: none; border-color: #4A84D8; }
.modal-note {
    font-size: 10px; color: #3D5166; line-height: 1.55; text-align: center;
}
.modal-note-mono { font-family: 'IBM Plex Mono', monospace; color: #4A6480; }
.modal-actions { display: flex; gap: 10px; margin-top: 4px; }
.modal-btn {
    flex: 1; padding: 11px; border-radius: 8px;
    font-size: 12px; font-weight: 700; letter-spacing: 0.06em;
    text-transform: uppercase; cursor: pointer; border: none;
    font-family: inherit; transition: opacity 0.15s;
}
.modal-btn:active { opacity: 0.8; }
.modal-btn-cancel { background: #1A2E4A; color: #64748B; }
.modal-btn-save   { background: var(--header-grad); color: #fff; }
.modal-btn-test   {
    width: 100%; padding: 10px; border-radius: 8px;
    font-size: 11px; font-weight: 700; letter-spacing: 0.06em;
    text-transform: uppercase; cursor: pointer; border: 1px solid #2A4A7A;
    background: #0D2040; color: #4A84D8; font-family: inherit;
    transition: border-color 0.15s, color 0.15s;
}
.modal-btn-test:hover { border-color: #4A84D8; color: #7AAFFF; }
.modal-test-result {
    font-size: 11px; font-weight: 600; text-align: center;
    padding: 8px 12px; border-radius: 6px;
    font-family: 'IBM Plex Mono', monospace;
}
.modal-test-pending { background: #1A2E4A; color: #64748B; }
.modal-test-ok      { background: rgba(22,163,74,0.15); color: #4ADE80; border: 1px solid rgba(22,163,74,0.3); }
.modal-test-err     { background: rgba(220,38,38,0.15); color: #F87171; border: 1px solid rgba(220,38,38,0.3); }

/* ── Simulator type toggle ──────────────────────────────────────────── */
.sim-type-row {
    display: flex; gap: 8px; margin-bottom: 16px;
}
.sim-type-btn {
    flex: 1; padding: 9px 12px; border-radius: 8px;
    font-size: 11px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase;
    background: #1A2E4A; color: #4A6480;
    border: 1px solid #2A4A7A; cursor: pointer;
    font-family: inherit; transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.sim-type-btn:hover     { border-color: #4A84D8; color: #7AAFFF; }
.sim-type-btn.sim-type-active {
    background: var(--header-grad); color: #fff; border-color: transparent;
}

/* ── MSFS ground-handling provider toggle (PMDG vs GSX Pro) ──────────── */
.ground-provider-btn {
    flex: 1; padding: 9px 12px; border-radius: 8px;
    font-size: 11px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase;
    background: #1A2E4A; color: #4A6480;
    border: 1px solid #2A4A7A; cursor: pointer;
    font-family: inherit; transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.ground-provider-btn:hover { border-color: #4A84D8; color: #7AAFFF; }
.ground-provider-btn[data-ground-provider="pmdg"].ground-provider-active {
    background: var(--header-grad); color: #fff; border-color: transparent;
}
.ground-provider-btn[data-ground-provider="gsx"].ground-provider-active {
    background: linear-gradient(90deg, #C25A1E 0%, #E8762C 100%);
    color: #fff; border-color: transparent;
}

/* ── FUEL MANAGEMENT ──────────────────────────────────────────────────── */
#screen-fuel { display: flex; flex-direction: column; }

.fuel-body {
    flex: 1; overflow-y: auto;
    padding: 16px 14px;
    padding-bottom: calc(88px + env(safe-area-inset-bottom, 0px));
    display: flex; flex-direction: column; gap: 14px;
}

.fuel-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 16px 18px;
    display: flex; flex-direction: column; gap: 12px;
}

.fuel-card-hdr-row {
    display: flex; align-items: center;
    justify-content: space-between;
}

.fuel-card-hdr {
    font-size: 10px; font-weight: 700;
    color: var(--t3); letter-spacing: 0.12em;
    text-transform: uppercase;
}

/* KG / LBS toggle pill */
.fuel-unit-toggle {
    display: flex;
    background: var(--input-bg);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 2px;
    gap: 2px;
}

.fuel-unit-btn {
    padding: 4px 10px;
    border: none; border-radius: 16px;
    font-size: 10px; font-weight: 700;
    letter-spacing: 0.08em;
    font-family: inherit; cursor: pointer;
    background: transparent;
    color: var(--t3);
    transition: background 0.15s, color 0.15s;
}

.fuel-unit-btn.fuel-unit-active {
    background: #4A84D8;
    color: #fff;
}

/* Per-tank breakdown */
.fuel-tanks-grid {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 8px; padding-top: 4px;
    border-top: 1px solid var(--border);
}

.fuel-tank-item {
    display: flex; flex-direction: column;
    align-items: center; gap: 3px;
}

.fuel-tank-lbl {
    font-size: 9px; font-weight: 700;
    color: var(--t3); letter-spacing: 0.1em;
    text-transform: uppercase;
}

/* Cargo Payload */
.cargo-item { display: flex; flex-direction: column; gap: 8px; }

.cargo-item-hdr {
    display: flex; align-items: baseline;
    justify-content: space-between;
}

.cargo-lbl {
    font-size: 11px; font-weight: 700;
    color: var(--t3); letter-spacing: 0.08em;
    text-transform: uppercase;
}

.cargo-val {
    font-size: 22px; font-weight: 700;
    color: var(--t1);
    font-family: 'IBM Plex Mono', monospace;
}

.cargo-divider {
    height: 1px; background: var(--border);
    margin: 2px 0;
}

/* Passenger Loading */
.pax-zones {
    display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px;
}

.pax-zone {
    display: flex; flex-direction: column;
    align-items: center; gap: 4px;
    background: var(--input-bg);
    border: 1px solid var(--border);
    border-radius: 8px; padding: 8px 4px;
}

.pax-zone-lbl {
    font-size: 9px; font-weight: 700;
    color: var(--t3); letter-spacing: 0.1em;
    text-transform: uppercase;
}

.pax-zone-val {
    font-size: 11px; font-weight: 600;
    color: var(--t1);
    font-family: 'IBM Plex Mono', monospace;
    white-space: nowrap;
}

.pax-total-row {
    display: flex; align-items: center;
    justify-content: space-between;
    padding-top: 4px;
    border-top: 1px solid var(--border);
}

.pax-total-lbl {
    font-size: 10px; font-weight: 700;
    color: var(--t3); letter-spacing: 0.1em;
    text-transform: uppercase;
}

.pax-total-val {
    font-size: 20px; font-weight: 700;
    color: var(--t1);
    font-family: 'IBM Plex Mono', monospace;
}

.pax-cg-indicator {
    font-size: 11px; font-weight: 600;
    font-family: 'IBM Plex Mono', monospace;
    padding: 8px 12px; border-radius: 8px;
    letter-spacing: 0.04em;
}
.pax-cg-ok   { background: rgba(22,163,74,0.15);  color: #4ADE80; border: 1px solid rgba(22,163,74,0.3); }
.pax-cg-warn { background: rgba(245,158,11,0.15); color: #FCD34D; border: 1px solid rgba(245,158,11,0.3); }
.pax-cg-err  { background: rgba(220,38,38,0.15);  color: #F87171; border: 1px solid rgba(220,38,38,0.3); }

.fuel-tank-bar-track {
    width: 100%; height: 5px;
    background: var(--input-bg);
    border: 1px solid var(--border);
    border-radius: 3px; overflow: hidden;
}

.fuel-tank-bar-fill {
    height: 100%; border-radius: 3px;
    background: linear-gradient(90deg, #1E4A9E, #4A84D8);
    transition: width 0.4s ease;
    width: 0%;
}

.fuel-tank-val {
    font-size: 12px; font-weight: 600;
    color: var(--t2);
    font-family: 'IBM Plex Mono', monospace;
}

/* Fuel Bar */
.fuel-bar-wrap { display: flex; flex-direction: column; gap: 6px; }

.fuel-bar-track {
    position: relative; height: 20px;
    background: var(--input-bg);
    border: 1px solid var(--border);
    border-radius: 10px; overflow: visible;
}

.fuel-bar-fill {
    height: 100%; border-radius: 10px;
    background: linear-gradient(90deg, #1E4A9E 0%, #4A84D8 100%);
    transition: width 0.4s ease;
    width: 0%;
}

.fuel-bar-target {
    position: absolute; top: -4px; bottom: -4px;
    width: 3px; margin-left: -1px;
    background: #F59E0B;
    border-radius: 2px;
    box-shadow: 0 0 6px rgba(245,158,11,0.8);
}

.fuel-bar-labels {
    display: flex; justify-content: space-between;
    font-size: 9px; color: var(--t3);
    font-family: 'IBM Plex Mono', monospace;
    padding: 0 2px;
}

.fuel-actual-row {
    display: flex; align-items: center;
    justify-content: space-between;
}

.fuel-actual-lbl {
    font-size: 10px; font-weight: 700;
    color: var(--t3); letter-spacing: 0.1em;
}

.fuel-actual-val {
    font-size: 24px; font-weight: 700;
    color: var(--t1);
    font-family: 'IBM Plex Mono', monospace;
}

/* eFL FOB Row */
.fuel-efl-row {
    display: flex; align-items: center;
    justify-content: space-between;
    padding-top: 6px;
    margin-top: 4px;
    border-top: 1px solid var(--border);
}

.fuel-efl-lbl {
    font-size: 10px; font-weight: 700;
    color: var(--t3); letter-spacing: 0.1em;
}

.fuel-efl-val {
    font-size: 14px; font-weight: 600;
    color: var(--t2);
    font-family: 'IBM Plex Mono', monospace;
}

.fuel-efl-right {
    display: flex; align-items: center; gap: 8px;
}

.fuel-efl-sync-btn {
    background: none;
    border: 1.5px solid var(--border);
    border-radius: 6px;
    color: var(--t2);
    font-size: 14px;
    padding: 2px 7px;
    cursor: pointer;
    line-height: 1;
    transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.fuel-efl-sync-btn:hover {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

.fuel-efl-sync-btn.efl-mismatch {
    border-color: #DC2626;
    color: #DC2626;
}

/* Uplift Row */
.fuel-uplift-row {
    display: flex; align-items: center;
    justify-content: space-between;
    padding-top: 6px;
    margin-top: 4px;
    border-top: 1px solid var(--border);
}

.fuel-uplift-lbl {
    font-size: 10px; font-weight: 700;
    color: var(--t3); letter-spacing: 0.1em;
}

.fuel-uplift-vals {
    display: flex; align-items: center; gap: 6px;
}

.fuel-uplift-kg {
    font-size: 14px; font-weight: 700;
    color: #2160B8;
    font-family: 'IBM Plex Mono', monospace;
}

.fuel-uplift-sep {
    font-size: 12px; color: var(--t3);
}

.fuel-uplift-sec {
    font-size: 14px; font-weight: 600;
    color: var(--t2);
    font-family: 'IBM Plex Mono', monospace;
}

/* Target Input Row */
.fuel-input-row {
    display: flex; gap: 10px; align-items: center;
}

.fuel-input {
    flex: 1;
    background: var(--input-bg);
    border: 1.5px solid var(--border);
    border-radius: 10px;
    color: var(--t1);
    font-family: 'IBM Plex Mono', monospace;
    font-size: 16px; padding: 11px 14px;
    transition: border-color 0.15s;
}

.fuel-input:focus { outline: none; border-color: #4A84D8; }

.fuel-set-btn {
    padding: 11px 20px;
    background: var(--header-grad);
    border: none; border-radius: 10px;
    color: #fff;
    font-size: 12px; font-weight: 700;
    letter-spacing: 0.08em;
    font-family: inherit; cursor: pointer;
    transition: opacity 0.15s, background 0.3s;
    white-space: nowrap;
}

.fuel-set-btn:active { opacity: 0.75; }

.fuel-set-btn.success {
    background: linear-gradient(135deg, #15803D, #16A34A);
}

/* Fuel Truck Button */
.fuel-truck-btn {
    width: 100%; padding: 18px 20px;
    background: var(--input-bg);
    border: 2px solid var(--border);
    border-radius: 12px;
    color: var(--t2);
    font-size: 14px; font-weight: 700;
    letter-spacing: 0.1em; text-transform: uppercase;
    font-family: inherit; cursor: pointer;
    transition: border-color 0.2s, background 0.2s, color 0.2s;
}

.fuel-truck-btn:active { opacity: 0.75; }

.fuel-truck-btn.fuel-truck-active {
    background: rgba(22,163,74,0.15);
    border-color: #16A34A;
    color: #4ADE80;
    box-shadow: 0 0 16px rgba(22,163,74,0.25);
}

/* ── LOADING GRID (Pax + Cargo inputs) ─────────────────────────────────── */
.loading-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 10px;
    margin-bottom: 14px;
}

.loading-field {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.loading-lbl {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--t3);
    text-transform: uppercase;
}

.loading-max {
    font-size: 10px;
    color: var(--t3);
    text-align: center;
}

/* ── LOAD PLANE BUTTON ──────────────────────────────────────────────────── */
.load-plane-btn {
    width: 100%;
    padding: 14px;
    border: 2px solid var(--b2);
    border-radius: 8px;
    background: var(--b1);
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-family: inherit;
    cursor: pointer;
    margin-bottom: 16px;
    transition: background 0.2s, border-color 0.2s;
}

.load-plane-btn:active  { opacity: 0.8; }
.load-plane-btn:disabled { opacity: 0.5; cursor: not-allowed; }

.load-plane-btn.success {
    background: rgba(22,163,74,0.2);
    border-color: #16A34A;
    color: #4ADE80;
}

/* ── CG RESULTS ─────────────────────────────────────────────────────────── */
.cg-results {
    margin-top: 14px;
    border-top: 1px solid var(--border);
    padding-top: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.cg-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.cg-row-tow {
    margin-top: 4px;
    padding-top: 8px;
    border-top: 1px solid var(--border);
}

.cg-lbl {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.06em;
    color: var(--t2);
    text-transform: uppercase;
}

.cg-lbl-sub {
    font-size: 10px;
    font-weight: 400;
    color: var(--t3);
    text-transform: none;
}

.cg-val {
    font-size: 14px;
    font-weight: 700;
    font-family: 'IBM Plex Mono', monospace;
    color: var(--t1);
}

.cg-val-tow {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.cg-val-ok  { color: #4ADE80; }
.cg-val-err { color: #F87171; }
.efl-mismatch { color: #DC2626; font-weight: 700; }
.fuel-efl-row {
    display: flex; justify-content: space-between; align-items: center;
    padding-top: 8px; margin-top: 8px; border-top: 1px solid var(--border-row);
    font-size: 11px;
}
.fuel-efl-lbl {
    color: var(--t3); text-transform: uppercase; font-weight: 600;
}
.fuel-efl-val {
    font-size: 13px; font-weight: 700; font-family: 'IBM Plex Mono', monospace;
    color: var(--t1);
}
.fuel-efl-val.efl-mismatch {
    color: #DC2626;
}
.fuel-sync-btn {
    width: 100%; padding: 12px 14px; border: none; border-radius: 10px;
    background: var(--b2); color: white; font-weight: 700; cursor: pointer;
    transition: opacity 0.15s, background 0.15s;
}
.fuel-sync-btn:disabled {
    opacity: 0.4; cursor: not-allowed; background: var(--border-row);
}
.fuel-sync-btn-red {
    background: #DC2626;
}
.fuel-sync-btn-red:hover:not(:disabled) {
    background: #B91C1C;
}

/* ── RESPONSIVE ───────────────────────────────────────────────────────── */
@media (min-width: 600px) {
    .reports-body { padding: 16px 24px; }
    .reports-grid { grid-template-columns: repeat(auto-fill, minmax(360px, 1fr)); gap: 12px; }
    .login-card { width: 400px; }
    .dash-body { padding: 16px 20px; gap: 14px; }
    .dash-cards { gap: 12px; }
    .dash-card { padding: 16px; min-height: 170px; }
    .dash-big-number { font-size: 60px; }
    .dash-chart-wrap-sm { height: 100px; width: 100px; }
}

@media (min-width: 900px) {
    .reports-grid { grid-template-columns: repeat(auto-fill, minmax(380px, 1fr)); gap: 14px; }
    .viewer-section { margin-left: 24px; margin-right: 24px; }
    .reports-body { padding: 20px 24px; }
    .load-more-wrap { padding: 24px; }
    .dash-body { padding: 20px 24px; }
    .dash-cards { grid-template-columns: repeat(4, 1fr); }
    .dash-big-number { font-size: 68px; }
}