/* =====================================================
   FPV Track Designer - WCMRC Inspired Theme
   Inspired by West Coast Multirotor Club
   ===================================================== */

@import url('https://fonts.googleapis.com/css2?family=Exo+2:wght@400;500;600;700;800&family=Bebas+Neue&display=swap');

:root {
    /* WCMRC-inspired color palette */
    --wcmrc-teal: #29b6f6;
    --wcmrc-teal-dark: #0288d1;
    --wcmrc-teal-light: #4fc3f7;
    --wcmrc-sky: #e0f7fa;
    --wcmrc-navy: #37474f;
    --wcmrc-navy-dark: #263238;
    --wcmrc-charcoal: #455a64;
    --wcmrc-orange: #ff6d00;
    --wcmrc-orange-light: #ff9100;
    --wcmrc-green: #00c853;
    --wcmrc-green-soft: #69f0ae;
    --wcmrc-red: #ff5252;
    --wcmrc-magenta: #e040fb;
    --wcmrc-white: #ffffff;
    --wcmrc-gray-light: #eceff1;
    --wcmrc-gray: #90a4ae;
    
    /* Semantic colors */
    --primary: var(--wcmrc-teal);
    --primary-dark: var(--wcmrc-teal-dark);
    --accent: var(--wcmrc-orange);
    --success: var(--wcmrc-green);
    --danger: var(--wcmrc-red);
    
    /* Panel styling */
    --panel-bg: rgba(255, 255, 255, 0.97);
    --panel-border: rgba(55, 71, 79, 0.15);
    --panel-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
    
    /* Text colors */
    --text-dark: #263238;
    --text-medium: #546e7a;
    --text-light: #90a4ae;
    --text-white: #ffffff;
    
    /* Header gradient */
    --header-gradient: linear-gradient(135deg, #455a64 0%, #37474f 50%, #263238 100%);
}

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

body {
    font-family: 'Exo 2', 'Segoe UI', sans-serif;
    background: var(--wcmrc-navy-dark);
    color: var(--text-dark);
    overflow: hidden;
    height: 100vh;
    user-select: none;
}

/* ==================== CANVAS ==================== */
#canvas-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

/* ==================== UI OVERLAY ==================== */
.ui-overlay {
    position: fixed;
    z-index: 100;
    pointer-events: none;
}

.ui-overlay > * {
    pointer-events: auto;
}

/* ==================== HEADER ==================== */
.header {
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    background: var(--header-gradient);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
}

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

.logo-icon {
    width: 46px;
    height: 46px;
    background: linear-gradient(135deg, var(--wcmrc-teal) 0%, var(--wcmrc-teal-dark) 100%);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 3px 10px rgba(41, 182, 246, 0.4);
    position: relative;
}

.logo-icon::after {
    content: '';
    position: absolute;
    inset: 2px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
}

.logo-icon svg {
    width: 26px;
    height: 26px;
    fill: none;
    stroke: var(--wcmrc-white);
    stroke-width: 2;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.2));
}

.logo-text h1 {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--wcmrc-white);
    letter-spacing: 3px;
    text-transform: uppercase;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.logo-text h1::first-letter {
    color: var(--wcmrc-teal-light);
}

.logo-text span {
    display: block;
    font-family: 'Exo 2', sans-serif;
    font-size: 0.65rem;
    color: var(--wcmrc-gray);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-top: -2px;
}

/* Mode Badge */
.mode-badge {
    padding: 8px 20px;
    border-radius: 25px;
    font-family: 'Bebas Neue', sans-serif;
    font-weight: 400;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.mode-badge.edit-mode {
    background: linear-gradient(135deg, var(--wcmrc-teal) 0%, var(--wcmrc-teal-dark) 100%);
    color: var(--wcmrc-white);
}

.mode-badge.locked-mode {
    background: linear-gradient(135deg, var(--wcmrc-magenta) 0%, #9c27b0 100%);
    color: var(--wcmrc-white);
}

.mode-badge.path-mode {
    background: linear-gradient(135deg, var(--wcmrc-green) 0%, #00a844 100%);
    color: var(--wcmrc-white);
}

/* ==================== PANELS ==================== */
.panel {
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    border-radius: 12px;
    padding: 14px;
    backdrop-filter: blur(10px);
    box-shadow: var(--panel-shadow);
}

.panel-title {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--wcmrc-teal-dark);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--wcmrc-teal);
    position: relative;
}

.panel-title::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--wcmrc-orange);
}

/* Gates Panel */
.gates-panel {
    top: 70px;
    left: 12px;
    width: 200px;
    max-height: calc(100vh - 150px);
    overflow-y: auto;
}

.gates-panel::-webkit-scrollbar {
    width: 5px;
}

.gates-panel::-webkit-scrollbar-track {
    background: var(--wcmrc-gray-light);
    border-radius: 3px;
}

.gates-panel::-webkit-scrollbar-thumb {
    background: var(--wcmrc-teal);
    border-radius: 3px;
}

.gate-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    margin-bottom: 6px;
    background: var(--wcmrc-gray-light);
    border: 2px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.gate-item:hover {
    background: var(--wcmrc-sky);
    border-color: var(--wcmrc-teal);
    transform: translateX(3px);
}

.gate-item:active {
    transform: translateX(3px) scale(0.98);
}

.gate-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--wcmrc-orange) 0%, var(--wcmrc-orange-light) 100%);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--wcmrc-white);
    flex-shrink: 0;
    box-shadow: 0 2px 6px rgba(255, 109, 0, 0.3);
}

.gate-info h3 {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 2px;
}

.gate-info span {
    font-size: 0.7rem;
    color: var(--text-medium);
}

/* Controls Panel */
.controls-panel {
    top: 70px;
    right: 12px;
    width: 230px;
}

/* ==================== BUTTONS ==================== */
.btn {
    width: 100%;
    padding: 11px 16px;
    margin-bottom: 6px;
    border: none;
    border-radius: 8px;
    font-family: 'Exo 2', sans-serif;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none !important;
}

.btn-primary {
    background: linear-gradient(135deg, var(--wcmrc-teal) 0%, var(--wcmrc-teal-dark) 100%);
    color: var(--wcmrc-white);
    box-shadow: 0 3px 10px rgba(41, 182, 246, 0.35);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 5px 18px rgba(41, 182, 246, 0.5);
}

.btn-secondary {
    background: var(--wcmrc-gray-light);
    color: var(--text-dark);
    border: 2px solid var(--panel-border);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--wcmrc-sky);
    border-color: var(--wcmrc-teal);
    color: var(--wcmrc-teal-dark);
}

.btn-success {
    background: linear-gradient(135deg, var(--wcmrc-green) 0%, #00a844 100%);
    color: var(--wcmrc-white);
    box-shadow: 0 3px 10px rgba(0, 200, 83, 0.35);
}

.btn-success:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 5px 18px rgba(0, 200, 83, 0.5);
}

.btn-magenta {
    background: linear-gradient(135deg, var(--wcmrc-magenta) 0%, #9c27b0 100%);
    color: var(--wcmrc-white);
    box-shadow: 0 3px 10px rgba(224, 64, 251, 0.35);
}

.btn-magenta:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 5px 18px rgba(224, 64, 251, 0.5);
}

.btn-danger {
    background: rgba(255, 82, 82, 0.1);
    color: var(--wcmrc-red);
    border: 2px solid rgba(255, 82, 82, 0.3);
}

.btn-danger:hover:not(:disabled) {
    background: rgba(255, 82, 82, 0.2);
    border-color: var(--wcmrc-red);
}

.btn-small {
    padding: 8px 12px;
    font-size: 0.75rem;
}

.divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--panel-border), transparent);
    margin: 12px 0;
}

/* Track Stats */
.track-info {
    margin-top: 12px;
    padding: 12px;
    background: linear-gradient(135deg, var(--wcmrc-navy) 0%, var(--wcmrc-navy-dark) 100%);
    border-radius: 8px;
}

.track-stat {
    display: flex;
    justify-content: space-between;
    margin-bottom: 6px;
    font-size: 0.75rem;
}

.track-stat:last-child {
    margin-bottom: 0;
}

.track-stat span:first-child {
    color: var(--wcmrc-gray);
}

.track-stat span:last-child {
    font-weight: 700;
    color: var(--wcmrc-teal-light);
    font-family: 'Bebas Neue', sans-serif;
    font-size: 0.85rem;
    letter-spacing: 1px;
}

/* Selected Gate Info */
.selected-gate-info {
    margin-top: 12px;
    padding: 12px;
    background: linear-gradient(135deg, rgba(255, 109, 0, 0.1) 0%, rgba(255, 145, 0, 0.1) 100%);
    border: 2px solid var(--wcmrc-orange);
    border-radius: 8px;
    display: none;
}

.selected-gate-info.active {
    display: block;
}

.selected-gate-info h4 {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--wcmrc-orange);
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.selected-gate-info p {
    font-size: 0.7rem;
    color: var(--text-medium);
    line-height: 1.5;
}

.rotation-display {
    font-family: 'Bebas Neue', sans-serif;
    color: var(--wcmrc-teal-dark);
    font-size: 0.85rem;
    margin-top: 6px;
    letter-spacing: 1px;
}

/* ==================== BOTTOM CONTROLS ==================== */
.bottom-controls {
    bottom: 12px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
}

.control-group {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 18px;
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    border-radius: 25px;
    backdrop-filter: blur(10px);
    box-shadow: var(--panel-shadow);
}

.control-group label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-medium);
    text-transform: uppercase;
    letter-spacing: 1px;
    white-space: nowrap;
}

.slider {
    width: 90px;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--wcmrc-gray-light);
    border-radius: 3px;
    outline: none;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--wcmrc-teal) 0%, var(--wcmrc-teal-dark) 100%);
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(41, 182, 246, 0.4);
    transition: transform 0.15s ease;
}

.slider::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border: none;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--wcmrc-teal) 0%, var(--wcmrc-teal-dark) 100%);
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(41, 182, 246, 0.4);
}

.slider::-moz-range-track {
    height: 6px;
    background: var(--wcmrc-gray-light);
    border-radius: 3px;
}

.slider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.slider-value {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 0.85rem;
    color: var(--wcmrc-teal-dark);
    min-width: 35px;
    text-align: right;
    letter-spacing: 1px;
}

/* ==================== INSTRUCTIONS ==================== */
.instructions {
    bottom: 12px;
    right: 12px;
    max-width: 260px;
}

.instructions .panel {
    padding: 12px 14px;
}

.instruction-item {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 5px;
    font-size: 0.72rem;
    color: var(--text-medium);
}

.instruction-item:last-child {
    margin-bottom: 0;
}

.key {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 28px;
    padding: 3px 8px;
    background: var(--wcmrc-navy);
    border: none;
    border-radius: 4px;
    font-family: 'Bebas Neue', sans-serif;
    font-size: 0.7rem;
    color: var(--wcmrc-teal-light);
    letter-spacing: 1px;
    flex-shrink: 0;
}

/* ==================== MODALS ==================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(38, 50, 56, 0.92);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--panel-bg);
    border: none;
    border-radius: 16px;
    padding: 24px;
    max-width: 440px;
    width: 90%;
    transform: scale(0.9) translateY(20px);
    transition: transform 0.3s ease;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.modal-overlay.active .modal {
    transform: scale(1) translateY(0);
}

.modal h2 {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.4rem;
    color: var(--wcmrc-teal-dark);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 3px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--wcmrc-teal);
    position: relative;
}

.modal h2::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 50px;
    height: 2px;
    background: var(--wcmrc-orange);
}

.modal p {
    color: var(--text-medium);
    font-size: 0.9rem;
    margin-bottom: 14px;
}

.modal input,
.modal textarea {
    width: 100%;
    padding: 12px 14px;
    margin-bottom: 12px;
    background: var(--wcmrc-gray-light);
    border: 2px solid transparent;
    border-radius: 8px;
    color: var(--text-dark);
    font-family: 'Exo 2', sans-serif;
    font-size: 0.95rem;
    transition: all 0.2s ease;
}

.modal input:focus,
.modal textarea:focus {
    outline: none;
    border-color: var(--wcmrc-teal);
    background: var(--wcmrc-white);
}

.modal input::placeholder,
.modal textarea::placeholder {
    color: var(--text-light);
}

.modal textarea {
    height: 90px;
    resize: none;
}

.modal-buttons {
    display: flex;
    gap: 10px;
    margin-top: 18px;
}

.modal-buttons .btn {
    flex: 1;
    margin-bottom: 0;
}

/* Share URL Container */
.share-url-container {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
}

.share-url-input {
    flex: 1;
    padding: 12px 14px;
    background: var(--wcmrc-gray-light);
    border: 2px solid var(--wcmrc-teal);
    border-radius: 8px;
    color: var(--text-dark);
    font-family: 'Exo 2', monospace;
    font-size: 0.8rem;
    min-width: 0;
    text-overflow: ellipsis;
}

.share-url-input:focus {
    outline: none;
    background: var(--wcmrc-white);
}

.share-copy-btn {
    flex-shrink: 0;
    width: auto !important;
    padding: 12px 16px !important;
    margin-bottom: 0 !important;
}

/* ==================== NOTIFICATION ==================== */
.notification {
    position: fixed;
    top: 75px;
    left: 50%;
    transform: translateX(-50%) translateY(-20px);
    padding: 12px 24px;
    background: var(--panel-bg);
    border-left: 4px solid var(--wcmrc-green);
    border-radius: 8px;
    color: var(--text-dark);
    font-weight: 600;
    font-size: 0.9rem;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.notification.show {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.notification.error {
    border-left-color: var(--wcmrc-red);
    background: #fff5f5;
}

/* ==================== LOADING SCREEN ==================== */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--wcmrc-navy-dark) 0%, var(--wcmrc-navy) 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 3000;
    transition: opacity 0.5s ease;
}

.loading-screen.hidden {
    opacity: 0;
    pointer-events: none;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--wcmrc-charcoal);
    border-top-color: var(--wcmrc-teal);
    border-right-color: var(--wcmrc-teal-light);
    border-radius: 50%;
    animation: spin 0.9s linear infinite;
    margin-bottom: 16px;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.loading-text {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1rem;
    color: var(--wcmrc-teal-light);
    text-transform: uppercase;
    letter-spacing: 4px;
}

/* ==================== ROTATION INDICATOR ==================== */
.rotation-indicator {
    position: fixed;
    padding: 8px 14px;
    background: var(--wcmrc-navy);
    border: 2px solid var(--wcmrc-orange);
    border-radius: 6px;
    color: var(--wcmrc-orange);
    font-family: 'Bebas Neue', sans-serif;
    font-size: 0.9rem;
    letter-spacing: 1px;
    z-index: 200;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.rotation-indicator.show {
    opacity: 1;
}

/* ==================== MOBILE MENU BUTTON ==================== */
.mobile-menu-btn {
    display: none;
    width: 40px;
    height: 40px;
    padding: 8px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid var(--wcmrc-teal);
    border-radius: 8px;
    color: var(--wcmrc-teal-light);
    cursor: pointer;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.mobile-menu-btn:hover,
.mobile-menu-btn:active {
    background: var(--wcmrc-teal);
    color: var(--wcmrc-white);
}

.mobile-menu-btn svg {
    width: 100%;
    height: 100%;
    fill: none;
}

/* ==================== PANEL HEADER ==================== */
.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0;
}

.panel-header .panel-title {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
    flex: 1;
}

.panel-header .panel-title::after {
    display: none;
}

.panel-close-btn {
    display: none;
    width: 32px;
    height: 32px;
    background: var(--wcmrc-gray-light);
    border: none;
    border-radius: 50%;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-medium);
    cursor: pointer;
    transition: all 0.2s ease;
    line-height: 1;
    flex-shrink: 0;
}

.panel-close-btn:hover {
    background: var(--wcmrc-red);
    color: var(--wcmrc-white);
}

/* Panel underline - added separately when header is used */
.panel-header + .gate-item,
.panel-header + .btn,
.panel-header + .divider {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 2px solid var(--wcmrc-teal);
}

/* ==================== MOBILE GATE ACTIONS ==================== */
.mobile-gate-actions {
    display: flex;
    gap: 6px;
    margin-top: 10px;
}

.mobile-gate-actions .btn {
    flex: 1;
    margin-bottom: 0;
    padding: 8px 6px;
    font-size: 0.7rem;
}

/* ==================== MOBILE TOUCH HINT ==================== */
.mobile-touch-hint {
    position: fixed;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 150;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s ease;
    pointer-events: none;
}

.mobile-touch-hint.show {
    opacity: 1;
    visibility: visible;
}

.touch-hint-content {
    background: var(--panel-bg);
    border: 1px solid var(--wcmrc-teal);
    border-radius: 12px;
    padding: 12px 16px;
    text-align: center;
    box-shadow: var(--panel-shadow);
}

.touch-hint-content p {
    font-size: 0.75rem;
    color: var(--text-dark);
    margin: 4px 0;
}

.touch-hint-content p:first-child {
    margin-top: 0;
}

.touch-hint-content p:last-child {
    margin-bottom: 0;
}

/* ==================== MOBILE QUICK BAR ==================== */
.mobile-quick-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    display: none;
    justify-content: space-around;
    align-items: center;
    padding: 8px 12px;
    padding-bottom: max(8px, env(safe-area-inset-bottom));
    background: var(--header-gradient);
    border-top: 2px solid var(--wcmrc-teal);
    z-index: 120;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
}

.quick-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    padding: 8px 12px;
    background: transparent;
    border: none;
    color: var(--wcmrc-gray);
    cursor: pointer;
    transition: all 0.2s ease;
    border-radius: 8px;
    min-width: 56px;
}

.quick-btn:not(:disabled):hover,
.quick-btn:not(:disabled):active,
.quick-btn.active {
    background: rgba(41, 182, 246, 0.2);
    color: var(--wcmrc-teal-light);
}

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

.quick-btn span {
    font-size: 1.3rem;
}

.quick-btn small {
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ==================== VISIBILITY CLASSES ==================== */
.desktop-only {
    display: block;
}

.mobile-only {
    display: none !important;
}

/* ==================== RESPONSIVE - TABLET ==================== */
@media (max-width: 900px) {
    .instructions {
        display: none;
    }
    
    .gates-panel {
        width: 170px;
    }
    
    .controls-panel {
        width: 200px;
    }
}

/* ==================== RESPONSIVE - MOBILE ==================== */
@media (max-width: 768px) {
    /* Show/hide mobile vs desktop elements */
    .desktop-only {
        display: none !important;
    }
    
    .mobile-only {
        display: block !important;
    }
    
    /* Header adjustments */
    .header {
        padding: 8px 12px;
        gap: 8px;
    }
    
    .mobile-menu-btn {
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .logo-text h1 {
        font-size: 1rem;
        letter-spacing: 1px;
    }
    
    .logo-text span {
        display: none;
    }
    
    .logo-icon {
        width: 36px;
        height: 36px;
    }
    
    .logo-icon svg {
        width: 20px;
        height: 20px;
    }
    
    .mode-badge {
        padding: 5px 10px;
        font-size: 0.65rem;
        letter-spacing: 1px;
    }
    
    /* Collapsible panels */
    .gates-panel,
    .controls-panel {
        position: fixed;
        top: 60px;
        width: 280px;
        max-width: calc(100vw - 24px);
        max-height: calc(100vh - 140px);
        transform: translateX(-110%);
        transition: transform 0.3s ease;
        z-index: 110;
    }
    
    .gates-panel {
        left: 12px;
    }
    
    .controls-panel {
        right: 12px;
        left: auto;
        transform: translateX(110%);
    }
    
    .gates-panel.open {
        transform: translateX(0);
    }
    
    .controls-panel.open {
        transform: translateX(0);
    }
    
    .panel-close-btn {
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    /* Panel content adjustments */
    .panel {
        padding: 14px;
    }
    
    .gate-item {
        padding: 12px;
        margin-bottom: 8px;
    }
    
    .gate-icon {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
    
    .gate-info h3 {
        font-size: 0.95rem;
    }
    
    .gate-info span {
        font-size: 0.75rem;
    }
    
    .btn {
        padding: 12px 14px;
        font-size: 0.85rem;
    }
    
    /* Bottom controls - adjust for quick bar */
    .bottom-controls {
        bottom: 70px;
        flex-wrap: wrap;
        gap: 8px;
        width: calc(100% - 24px);
        justify-content: center;
    }
    
    .control-group {
        padding: 10px 14px;
        border-radius: 20px;
    }
    
    .control-group label {
        font-size: 0.65rem;
    }
    
    .slider {
        width: 60px;
    }
    
    .slider-value {
        font-size: 0.75rem;
        min-width: 30px;
    }
    
    /* Show mobile quick bar */
    .mobile-quick-bar {
        display: flex;
    }
    
    /* Notification adjustment */
    .notification {
        top: auto;
        bottom: 140px;
        max-width: calc(100% - 40px);
    }
    
    /* Modal adjustments for mobile */
    .modal {
        max-height: calc(100vh - 100px);
        overflow-y: auto;
        margin: 20px;
    }
    
    .modal-buttons {
        flex-wrap: wrap;
    }
    
    .modal-buttons .btn {
        min-width: 100px;
    }
    
    /* Share URL on mobile */
    .share-url-container {
        flex-direction: column;
    }
    
    .share-copy-btn {
        width: 100% !important;
    }
    
    /* Panel overlay when open */
    .panel-overlay {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 105;
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
    }
    
    .panel-overlay.show {
        opacity: 1;
        visibility: visible;
    }
}

/* ==================== RESPONSIVE - SMALL MOBILE ==================== */
@media (max-width: 400px) {
    .header {
        padding: 6px 8px;
    }
    
    .logo-text h1 {
        font-size: 0.85rem;
    }
    
    .mobile-menu-btn {
        width: 36px;
        height: 36px;
    }
    
    .mode-badge {
        padding: 4px 8px;
        font-size: 0.6rem;
    }
    
    .gates-panel,
    .controls-panel {
        width: calc(100vw - 24px);
        max-height: calc(100vh - 120px);
    }
    
    .bottom-controls {
        bottom: 65px;
    }
    
    .control-group {
        padding: 8px 10px;
        flex: 1;
        justify-content: center;
    }
    
    .quick-btn {
        padding: 6px 8px;
        min-width: 48px;
    }
    
    .quick-btn span {
        font-size: 1.1rem;
    }
    
    .quick-btn small {
        font-size: 0.55rem;
    }
}

/* ==================== TOUCH DEVICE OPTIMIZATIONS ==================== */
@media (hover: none) and (pointer: coarse) {
    /* Larger touch targets */
    .btn {
        min-height: 44px;
    }
    
    .gate-item {
        min-height: 54px;
    }
    
    .slider::-webkit-slider-thumb {
        width: 24px;
        height: 24px;
    }
    
    .slider::-moz-range-thumb {
        width: 24px;
        height: 24px;
    }
    
    /* Disable hover effects that don't work on touch */
    .gate-item:hover {
        transform: none;
    }
    
    .btn:hover:not(:disabled) {
        transform: none;
    }
    
    /* Active states for touch feedback */
    .gate-item:active {
        background: var(--wcmrc-sky);
        border-color: var(--wcmrc-teal);
    }
    
    .btn:active:not(:disabled) {
        transform: scale(0.98);
    }
}

/* ==================== SCROLLBAR GLOBAL ==================== */
/* Webkit browsers (Chrome, Safari, Edge) */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: var(--wcmrc-gray-light);
}

::-webkit-scrollbar-thumb {
    background: var(--wcmrc-teal);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--wcmrc-teal-dark);
}

/* Firefox */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--wcmrc-teal) var(--wcmrc-gray-light);
}

/* ==================== SELECTION ==================== */
::selection {
    background: var(--wcmrc-teal);
    color: var(--wcmrc-white);
}