:root {
    --bg-color: #050b14;
    --panel-bg: rgba(10, 20, 38, 0.75);
    --panel-glass: rgba(13, 27, 42, 0.65);
    --border-color: rgba(30, 144, 255, 0.25);
    --border-glow: rgba(0, 210, 255, 0.4);
    --accent-blue: #00d2ff;
    --accent-green: #39ff14; /* Neon Green */
    --accent-orange: #ffb703;
    --accent-red: #ff3333;
    --text-color: #e0e6ed;
    --text-muted: #8892b0;
    --font-main: 'Outfit', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --glow-shadow: 0 0 15px rgba(0, 210, 255, 0.25);
}

/* Custom Scrollbars */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.1);
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-blue);
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-main);
    min-height: 100vh;
    overflow-x: hidden;
    background-image: radial-gradient(circle at center, #0f223d 0%, #03070d 100%);
}

/* ---------------------------------------------------- */
/* Landing View Styles */
/* ---------------------------------------------------- */
#landing-view {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px 80px 20px;
    animation: fadeIn 0.8s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.landing-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 20px;
    margin-bottom: 50px;
}

.logo-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
}

.radar-logo-icon {
    width: 32px;
    height: 32px;
    border: 2px solid var(--accent-green);
    border-radius: 50%;
    position: relative;
    overflow: hidden;
}

.radar-logo-icon::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 1px;
    background: var(--accent-green);
    transform-origin: left center;
    animation: radarSweepSpin 3s linear infinite;
}

@keyframes radarSweepSpin {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

.logo-text {
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    color: #fff;
}

.logo-text span {
    color: var(--accent-green);
}

.header-nav {
    display: flex;
    gap: 25px;
}

.header-nav a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.2s ease;
}

.header-nav a:hover {
    color: var(--accent-blue);
}

/* Hero Section */
.hero-section {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
    align-items: center;
    margin-bottom: 60px;
}

.hero-content h1 {
    font-size: 3.2rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    color: #fff;
    background: linear-gradient(135deg, #fff 30%, var(--accent-blue) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 40px rgba(0, 210, 255, 0.15);
}

.hero-content p {
    font-size: 1.15rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 35px;
}

.cta-button-group {
    display: flex;
    gap: 15px;
}

.btn-primary {
    background: linear-gradient(135deg, #00d2ff 0%, #007bb5 100%);
    border: none;
    color: #03070d;
    padding: 16px 32px;
    border-radius: 8px;
    font-size: 1.05rem;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 0 25px rgba(0, 210, 255, 0.35);
    transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 35px rgba(0, 210, 255, 0.55);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: #fff;
    padding: 16px 32px;
    border-radius: 8px;
    font-size: 1.05rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-secondary:hover {
    background: rgba(30, 144, 255, 0.15);
    border-color: var(--accent-blue);
}

/* Glass Card Features Grid */
.airspace-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-bottom: 60px;
}

.airspace-card {
    background: var(--panel-glass);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 30px 25px;
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    transition: all 0.3s ease;
}

.airspace-card:hover {
    border-color: var(--accent-blue);
    transform: translateY(-5px);
    box-shadow: var(--glow-shadow);
}

.airspace-card-icon {
    font-size: 2.2rem;
    margin-bottom: 15px;
}

.airspace-card h3 {
    font-size: 1.25rem;
    color: #fff;
    margin-bottom: 10px;
}

.airspace-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* Info Section: How it Works & FAQ */
.info-section {
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 40px;
    margin-bottom: 60px;
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

.info-section h2 {
    font-size: 2rem;
    color: #fff;
    margin-bottom: 30px;
    border-left: 4px solid var(--accent-blue);
    padding-left: 15px;
}

.instruction-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.step-card {
    position: relative;
    padding-left: 50px;
}

.step-num {
    position: absolute;
    left: 0;
    top: 0;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(0, 210, 255, 0.15);
    border: 1px solid var(--accent-blue);
    color: var(--accent-blue);
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 700;
    font-size: 1rem;
}

.step-card h4 {
    font-size: 1.05rem;
    color: #fff;
    margin-bottom: 8px;
}

.step-card p {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* Accordion FAQ */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.faq-item {
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.02);
    overflow: hidden;
    transition: all 0.3s;
}

.faq-question {
    padding: 18px 25px;
    font-weight: 600;
    font-size: 1rem;
    color: #fff;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    -webkit-user-select: none;
    user-select: none;
}

.faq-question::after {
    content: '+';
    font-size: 1.3rem;
    color: var(--accent-blue);
    transition: transform 0.2s;
}

.faq-item.active {
    border-color: var(--border-color);
    background: rgba(30, 144, 255, 0.05);
}

.faq-item.active .faq-question::after {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    padding: 0 25px;
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.6;
}

.faq-item.active .faq-answer {
    max-height: 200px;
    padding-bottom: 20px;
}

/* Landing Footer */
.landing-footer {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 30px;
}

.landing-footer a {
    color: var(--accent-blue);
    text-decoration: none;
}

.landing-footer a:hover {
    text-decoration: underline;
}

/* ---------------------------------------------------- */
/* Simulator Layout (App Container) Styles */
/* ---------------------------------------------------- */
#app-container {
    display: flex;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
}

#sidebar {
    width: 380px;
    min-width: 380px;
    background: var(--panel-bg);
    border-right: 1px solid var(--border-color);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    display: flex;
    flex-direction: column;
    height: 100%;
    z-index: 10;
    box-shadow: 5px 0 25px rgba(0, 0, 0, 0.5);
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    background: rgba(8, 15, 25, 0.5);
}

.sidebar-header h1 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--accent-blue);
    letter-spacing: 1px;
}

.sidebar-header p {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.panel-section {
    padding: 15px 20px;
    border-bottom: 1px solid var(--border-color);
}

.section-title {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: 12px;
}

/* Flight strip list */
.flight-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 6px;
    padding: 6px 10px;
    margin-bottom: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.flight-card:hover {
    border-color: var(--accent-blue);
    background: rgba(0, 210, 255, 0.05);
}

.flight-card.selected {
    border-color: var(--accent-green);
    background: rgba(57, 255, 20, 0.08);
    box-shadow: 0 0 10px rgba(57, 255, 20, 0.15);
}

.flight-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
}

.callsign {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--accent-green);
}

.type {
    font-size: 0.65rem;
    background: rgba(255, 255, 255, 0.1);
    padding: 1px 4px;
    border-radius: 3px;
}

.flight-card-details {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 4px;
    font-size: 0.7rem;
    font-family: var(--font-mono);
}

.detail-item span {
    color: var(--text-muted);
    font-size: 0.6rem;
    display: block;
}

/* Plane Control Form */
#plane-control {
    flex-grow: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.control-group {
    margin-bottom: 12px;
}

.control-group-spaced {
    margin-top: 15px;
}

.footer-server-status {
    margin-top: 10px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.control-label-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
}

.control-label {
    font-size: 0.85rem;
    color: var(--text-color);
}

.control-val {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--accent-blue);
}

.slider-control {
    width: 100%;
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    border-radius: 3px;
    background: rgba(255, 255, 255, 0.1);
    outline: none;
}

.slider-control::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent-blue);
    cursor: pointer;
    box-shadow: 0 0 5px rgba(0, 210, 255, 0.5);
    transition: transform 0.1s ease;
}

.slider-control::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.btn-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    margin-top: 8px;
}

.btn {
    background: rgba(30, 144, 255, 0.15);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 8px 12px;
    border-radius: 4px;
    font-family: var(--font-main);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
}

.btn:hover:not(:disabled) {
    background: rgba(30, 144, 255, 0.35);
    border-color: var(--accent-blue);
    color: #fff;
}

.btn:active:not(:disabled) {
    transform: scale(0.98);
}

.btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.btn.active-command {
    background: rgba(57, 255, 20, 0.2);
    border-color: var(--accent-green);
    color: var(--accent-green);
}

.btn.danger {
    background: rgba(255, 51, 51, 0.15);
    border-color: rgba(255, 51, 51, 0.3);
    color: #ff8888;
}

.btn.danger:hover {
    background: rgba(255, 51, 51, 0.35);
    border-color: var(--accent-red);
    color: #fff;
}

/* Radio Log */
#radio-log-container {
    height: 180px;
    background: rgba(5, 10, 20, 0.9);
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.radio-log-header {
    padding: 10px 15px;
    border-bottom: 1px solid rgba(30, 144, 255, 0.15);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    display: flex;
    justify-content: space-between;
}

#radio-log {
    padding: 10px 15px;
    overflow-y: auto;
    flex-grow: 1;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    line-height: 1.4;
}

.log-entry {
    margin-bottom: 6px;
    border-left: 2px solid var(--accent-blue);
    padding-left: 6px;
}

.log-entry.controller {
    border-color: var(--accent-blue);
    color: #9cdcfe;
}

.log-entry.pilot {
    border-color: var(--accent-green);
    color: #b5cea8;
}

.log-entry.system {
    border-color: var(--accent-orange);
    color: var(--accent-orange);
}

/* Radar Display Area */
#radar-wrapper {
    flex-grow: 1;
    position: relative;
    height: 100%;
    background: #04080e;
}

canvas {
    display: block;
    width: 100%;
    height: 100%;
    cursor: grab;
}

canvas:active {
    cursor: grabbing;
}

/* Overlay controls */
#map-controls {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(8, 15, 25, 0.85);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    z-index: 5;
}

.control-title {
    font-size: 0.75rem;
    font-weight: bold;
    color: var(--text-muted);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    cursor: pointer;
    color: var(--text-color);
}

.checkbox-label input {
    cursor: pointer;
    accent-color: var(--accent-blue);
}

#hud-info {
    position: absolute;
    top: 20px;
    left: 20px;
    background: rgba(8, 15, 25, 0.85);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 15px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    line-height: 1.6;
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    z-index: 5;
    color: var(--accent-blue);
    text-shadow: 0 0 5px rgba(0, 210, 255, 0.2);
}

#hud-info b {
    font-size: 0.95rem;
    color: #fff;
    letter-spacing: 0.5px;
}

#hud-info span {
    color: var(--accent-green);
}

#help-btn {
    position: absolute;
    bottom: 20px;
    right: 20px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(8, 15, 25, 0.85);
    border: 1px solid var(--border-color);
    color: var(--accent-blue);
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: bold;
    cursor: pointer;
    z-index: 5;
    transition: all 0.2s;
}

#help-btn:hover {
    background: var(--accent-blue);
    color: var(--bg-color);
    box-shadow: 0 0 10px var(--accent-blue);
}

/* Sound button */
.sound-toggle-btn {
    background: none;
    border: none;
    color: var(--accent-blue);
    cursor: pointer;
    font-size: 1.1rem;
    outline: none;
}

.sound-toggle-btn:hover {
    color: var(--accent-green);
}

.sim-controls {
    display: flex;
    gap: 8px;
    margin-top: 10px;
}

.sim-btn {
    padding: 5px 10px;
    font-size: 0.72rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-color);
    cursor: pointer;
    border-radius: 4px;
    font-weight: 600;
    transition: all 0.2s;
}

.sim-btn:hover {
    background: rgba(30, 144, 255, 0.25);
    border-color: var(--accent-blue);
}

.sim-btn.active {
    background: var(--accent-blue);
    color: #080f19;
    border-color: var(--accent-blue);
}

.admin-input {
    width: 100%;
    padding: 8px;
    margin-bottom: 10px;
    background: rgba(0, 0, 0, 0.35);
    border: 1px solid var(--border-color);
    color: #fff;
    border-radius: 4px;
    font-family: var(--font-main);
    font-size: 0.85rem;
}

.admin-input:focus {
    border-color: var(--accent-blue);
    outline: none;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8rem;
    margin-top: 10px;
}

.admin-table th, .admin-table td {
    border: 1px solid rgba(30, 144, 255, 0.15);
    padding: 8px 10px;
    text-align: left;
}

.admin-table th {
    background: rgba(8, 15, 25, 0.8);
    color: var(--accent-blue);
}

.admin-table tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

.admin-table .actions {
    display: flex;
    gap: 5px;
}

.admin-table .actions button {
    padding: 2px 6px;
    font-size: 0.7rem;
}

/* Modals */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(3, 7, 13, 0.8);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    z-index: 99;
}

.modal {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(10, 20, 35, 0.96);
    border: 2px solid var(--accent-blue);
    border-radius: 12px;
    padding: 25px;
    z-index: 100;
    box-shadow: 0 10px 50px rgba(0, 0, 0, 0.85);
    -webkit-backdrop-filter: blur(15px);
    backdrop-filter: blur(15px);
    color: var(--text-color);
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    cursor: pointer;
    color: var(--text-muted);
    font-size: 1.2rem;
    font-weight: bold;
    transition: color 0.2s;
}

.modal-close:hover {
    color: var(--accent-red);
}

.modal h2 {
    color: var(--accent-blue);
    margin-bottom: 15px;
    font-size: 1.4rem;
}

.modal p {
    font-size: 0.85rem;
    line-height: 1.5;
    margin-bottom: 12px;
}

.session-form-group {
    margin-bottom: 15px;
}

.session-form-group label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.session-select {
    width: 100%;
    padding: 10px;
    background: rgba(5, 10, 20, 0.9);
    border: 1px solid var(--border-color);
    color: #fff;
    border-radius: 6px;
    font-family: var(--font-main);
    font-size: 0.9rem;
    outline: none;
}

.session-select:focus {
    border-color: var(--accent-blue);
    box-shadow: var(--glow-shadow);
}

/* Inline styles removal helper classes */
.btn-launch {
    text-decoration: none;
    display: inline-block;
    background: var(--accent-blue);
    color: #050b14;
    border-color: var(--accent-blue);
    padding: 8px 20px;
    font-weight: 700;
}

.hero-primary-btn {
    text-decoration: none;
    text-align: center;
}

.hero-radar-container {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.radar-outer-ring {
    width: 320px;
    height: 320px;
    border: 2px solid rgba(0, 210, 255, 0.15);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.radar-middle-ring {
    width: 220px;
    height: 220px;
    border: 1px solid rgba(0, 210, 255, 0.1);
    border-radius: 50%;
}

.radar-inner-ring {
    width: 100px;
    height: 100px;
    border: 1px solid rgba(0, 210, 255, 0.05);
    border-radius: 50%;
}

.radar-sweep-line {
    position: absolute;
    width: 50%;
    height: 2px;
    background: linear-gradient(90deg, rgba(57,255,20,0.8), rgba(0,0,0,0));
    left: 50%;
    top: 50%;
    transform-origin: left center;
    animation: radarSweepSpin 4s linear infinite;
}

.radar-dot-green {
    position: absolute;
    width: 6px;
    height: 6px;
    background: var(--accent-green);
    border-radius: 50%;
    top: 30%;
    left: 40%;
    box-shadow: 0 0 10px var(--accent-green);
    animation: pulseGlow 2s infinite;
}

.radar-dot-blue {
    position: absolute;
    width: 6px;
    height: 6px;
    background: var(--accent-blue);
    border-radius: 50%;
    top: 65%;
    left: 70%;
    box-shadow: 0 0 10px var(--accent-blue);
    animation: pulseGlow 2.5s infinite;
}

.radar-label-green {
    position: absolute;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--accent-green);
    top: 22%;
    left: 43%;
}

.radar-label-blue {
    position: absolute;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--accent-blue);
    top: 57%;
    left: 73%;
}

.section-margin-bottom {
    margin-bottom: 60px;
}

.section-title-custom {
    font-size: 1.8rem;
    margin-bottom: 25px;
    border-left: 4px solid var(--accent-blue);
    padding-left: 15px;
    color: #fff;
}

.footer-margin-top {
    margin-top: 10px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.sidebar-header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.sidebar-title-font {
    font-size: 1.1rem;
}

.sidebar-controls-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-admin-custom {
    background: rgba(0, 210, 255, 0.12);
    border-color: var(--accent-blue);
    font-size: 0.7rem;
    padding: 4px 8px;
}

.btn-exit-custom {
    text-decoration: none;
    background: rgba(255, 255, 255, 0.05);
    font-size: 0.7rem;
    padding: 4px 8px;
}


.panel-flex-grow {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    max-height: 300px; /* Constrain the height so commands panel is never pushed out */
    transition: max-height 0.3s ease, flex-grow 0.3s ease, padding 0.3s ease;
}

.panel-flex-grow.collapsed {
    flex-grow: 0;
    max-height: 40px;
}

.traffic-header {
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    -webkit-user-select: none;
    user-select: none;
    padding: 6px 10px;
    margin: -6px -10px;
    border-radius: 4px;
    transition: background 0.2s, color 0.2s;
}

.traffic-header:hover {
    background: rgba(255, 255, 255, 0.06);
    color: var(--accent-blue) !important;
}

#traffic-toggle-icon {
    font-size: 0.7rem;
    transition: transform 0.2s ease;
    color: var(--text-muted);
}

/* ====================================================
   PHASE 2: Sector-aware Session Modal
   ==================================================== */
.session-modal {
    width: 520px;
    display: block;
}

.modal-subtitle {
    color: var(--text-muted);
    margin-bottom: 20px;
    font-size: 0.9rem;
}

.modal-actions {
    display: flex;
    gap: 12px;
    margin-top: 25px;
    justify-content: flex-end;
}

.btn-launch {
    padding: 10px 24px;
    background: var(--accent-blue);
    color: #03070d;
    font-weight: 700;
    border-color: var(--accent-blue);
}

.btn-launch:hover {
    background: #00f0ff;
    box-shadow: 0 0 20px rgba(0, 210, 255, 0.6);
}

.session-text-input {
    padding: 10px;
    margin-bottom: 0;
}

/* ====================================================
   PHASE 3: STCA — Short Term Conflict Alert Banner
   ==================================================== */
.stca-banner {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    z-index: 200;
    background: rgba(200, 0, 0, 0.85);
    color: #fff;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 700;
    padding: 6px 22px;
    border-radius: 0 0 8px 8px;
    border: 1px solid #ff0000;
    letter-spacing: 0.08em;
    text-align: center;
    animation: stca-pulse 0.6s ease-in-out infinite alternate;
    white-space: nowrap;
}

@keyframes stca-pulse {
    from { background: rgba(200, 0, 0, 0.85); box-shadow: 0 0 8px rgba(255,0,0,0.4); }
    to   { background: rgba(255, 30, 30, 0.95); box-shadow: 0 0 22px rgba(255,0,0,0.8); }
}

.stca-banner.hidden {
    display: none;
}

/* ====================================================
   PHASE 2: Overflight aircraft label color (ACC)
   Overflights rendered in cyan on radar, different from green arrivals
   ==================================================== */
.overflight-label {
    color: var(--accent-blue);
}

/* ====================================================
   PHASE 4: Off-screen canvas — no layout changes needed
   The static canvas is managed in JS, not in DOM
   ==================================================== */

/* Premium Voice & Context Menu Styling */
.mic-toggle-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-color);
    font-size: 0.85rem;
    padding: 6px 10px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.mic-toggle-btn:hover {
    background: rgba(0, 210, 255, 0.15);
    border-color: var(--accent-blue);
    color: #fff;
    box-shadow: var(--glow-shadow);
}

.mic-toggle-btn.listening {
    background: rgba(255, 51, 51, 0.2);
    border-color: var(--accent-red);
    color: var(--accent-red);
    animation: mic-pulse 1.2s ease-in-out infinite alternate;
}

@keyframes mic-pulse {
    from { box-shadow: 0 0 4px rgba(255, 51, 51, 0.4); }
    to { box-shadow: 0 0 16px rgba(255, 51, 51, 0.8); }
}

/* Glassmorphism Context Menu */
.context-menu {
    position: absolute;
    z-index: 1000;
    width: 170px;
    background: rgba(10, 22, 41, 0.88);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(0, 210, 255, 0.25);
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.65);
    padding: 6px 0;
    display: none;
    font-family: var(--font-mono);
}

.context-menu-header {
    padding: 6px 14px 8px 14px;
    font-size: 0.68rem;
    color: var(--accent-green);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    margin-bottom: 4px;
    font-weight: bold;
    letter-spacing: 0.05em;
}

.context-menu-item {
    position: relative;
    padding: 8px 14px;
    color: var(--text-color);
    font-size: 0.74rem;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.context-menu-item:hover {
    background: rgba(0, 210, 255, 0.15);
    color: #fff;
}

.context-menu-item .arrow-right {
    font-size: 0.6rem;
    color: var(--text-muted);
}

/* Submenu container */
.context-submenu {
    position: absolute;
    left: 100%;
    top: -6px;
    width: 130px;
    background: rgba(8, 17, 33, 0.95);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(0, 210, 255, 0.25);
    border-radius: 8px;
    padding: 6px 0;
    display: none;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.65);
}

.context-menu-item:hover > .context-submenu {
    display: block;
}

/* Extracted Inline Styles to Centralize CSS */
.btn-launch-radar {
    text-decoration: none;
    display: inline-block;
    background: var(--accent-blue);
    color: #050b14;
    border-color: var(--accent-blue);
    padding: 8px 20px;
    font-weight: 700;
}

.btn-primary-custom {
    text-decoration: none;
    text-align: center;
}

.hero-radar-container {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.radar-circle-outer {
    width: 320px;
    height: 320px;
    border: 2px solid rgba(0, 210, 255, 0.15);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.radar-circle-mid {
    width: 220px;
    height: 220px;
    border: 1px solid rgba(0, 210, 255, 0.1);
    border-radius: 50%;
}

.radar-circle-inner {
    width: 100px;
    height: 100px;
    border: 1px solid rgba(0, 210, 255, 0.05);
    border-radius: 50%;
}

.radar-sweep-hero {
    position: absolute;
    width: 50%;
    height: 2px;
    background: linear-gradient(90deg, rgba(57,255,20,0.8), rgba(0,0,0,0));
    left: 50%;
    top: 50%;
    transform-origin: left center;
    animation: radarSweepSpin 4s linear infinite;
}

.radar-dot-green {
    position: absolute;
    width: 6px;
    height: 6px;
    background: var(--accent-green);
    border-radius: 50%;
    top: 30%;
    left: 40%;
    box-shadow: 0 0 10px var(--accent-green);
    animation: pulseGlow 2s infinite;
}

.radar-dot-blue {
    position: absolute;
    width: 6px;
    height: 6px;
    background: var(--accent-blue);
    border-radius: 50%;
    top: 65%;
    left: 70%;
    box-shadow: 0 0 10px var(--accent-blue);
    animation: pulseGlow 2.5s infinite;
}

.radar-text-green {
    position: absolute;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--accent-green);
    top: 22%;
    left: 43%;
}

.radar-text-blue {
    position: absolute;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--accent-blue);
    top: 57%;
    left: 73%;
}

.margin-bottom-large {
    margin-bottom: 60px;
}

.hidden-initially {
    display: none;
}

.panel-scroll-y {
    overflow-y: auto;
    flex-grow: 1;
    padding-right: 5px;
}

.text-placeholder-center {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    padding-top: 20px;
}

.control-panel-footer {
    background: rgba(5, 12, 22, 0.5);
    border-top: 1px solid var(--border-color);
    display: none;
}

.accent-green-text {
    color: var(--accent-green);
}

/* Flight Plan Modal Glassmorphism Details */
.flight-plan-modal {
    background: rgba(10, 20, 35, 0.92) !important;
    border: 2px solid var(--accent-blue) !important;
    box-shadow: 0 0 30px rgba(30, 144, 255, 0.25) !important;
    max-width: 90vw;
}

.fp-item-box {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    padding: 12px;
    transition: all 0.2s ease;
}

.fp-item-box:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(30, 144, 255, 0.2);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}