/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Consolas', 'Courier New', 'Monaco', monospace;
    background: linear-gradient(135deg, #0d1117, #161b22, #21262d);
    min-height: 100vh;
    color: #c9d1d9;
    line-height: 1.6;
}

/* Container - Mobile First */
.container {
    max-width: 100%;
    margin: 0 auto;
    padding: 10px;
}

/* Target Presets */
.target-presets {
    background: rgba(220, 38, 38, 0.15);
    border: 2px solid rgba(220, 38, 38, 0.4);
    border-radius: 8px;
    padding: 8px;
    margin: 12px 0;
}

.target-presets h4 {
    color: #dc2626;
    font-size: 0.8rem;
    margin: 0 0 6px 0;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-align: center;
}

.preset-buttons {
    display: flex;
    gap: 4px;
    margin-bottom: 8px;
    overflow-x: auto;
    padding-bottom: 2px;
    flex-wrap: wrap;
    justify-content: center;
}

.preset-btn {
    background: rgba(48, 54, 61, 0.7);
    border: 2px solid #30363d;
    border-radius: 6px;
    padding: 4px 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 32px;
    min-height: 32px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    font-family: 'Consolas', monospace;
    flex-shrink: 0;
}

.preset-btn:hover {
    border-color: #dc2626;
    background: rgba(220, 38, 38, 0.2);
    transform: translateY(-1px);
}

.preset-btn.has-data {
    background: rgba(220, 38, 38, 0.3);
    border-color: #dc2626;
}

.preset-btn.has-data:hover {
    background: rgba(220, 38, 38, 0.5);
}

.preset-number {
    font-size: 0.9rem;
    font-weight: bold;
    color: #dc2626;
    margin-bottom: 1px;
}

.preset-status {
    font-size: 0.5rem;
    color: #8b949e;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    line-height: 1;
}

.preset-btn.has-data .preset-status {
    color: #fbbf24;
}

.clear-btn {
    background: rgba(239, 68, 68, 0.3) !important;
    border-color: #ef4444 !important;
}

.clear-btn:hover {
    background: rgba(239, 68, 68, 0.5) !important;
    border-color: #dc2626 !important;
}

.clear-btn .preset-number {
    color: #ef4444 !important;
    font-size: 1rem !important;
}

.clear-btn .preset-status {
    color: #fca5a5 !important;
}

.preset-btn.active-preset {
    background: rgba(59, 130, 246, 0.4) !important;
    border-color: #3b82f6 !important;
    box-shadow: 0 0 10px rgba(59, 130, 246, 0.3) !important;
}

.preset-btn.active-preset:hover {
    background: rgba(59, 130, 246, 0.6) !important;
    border-color: #2563eb !important;
}

.preset-btn.active-preset .preset-number {
    color: #3b82f6 !important;
}

.preset-btn.active-preset .preset-status {
    color: #93c5fd !important;
}

.preset-instructions {
    text-align: center;
    margin-top: 4px;
}

.preset-instructions small {
    color: #6e7681;
    font-size: 0.65rem;
    font-style: italic;
}

/* Numpad Info Box */
.numpad-info-box {
    background: #232323;
    border-radius: 8px;
    padding: 8px 12px;
    margin: 10px 0;
    font-size: 0.85em;
    line-height: 1.4;
    color: #c9d1d9;
    border: 1px solid #30363d;
    max-width: 300px;
}

/* Header */
header {
    text-align: center;
    margin-bottom: 20px;
    background: rgba(0, 0, 0, 0.8);
    padding: 15px;
    border-radius: 12px;
    border: 2px solid #30363d;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.header-content {
    flex: 1;
    text-align: center;
}

.header-content h1 {
    font-size: 1.8rem;
    color: #58a6ff;
    margin-bottom: 5px;
    text-shadow: 0 0 10px rgba(88, 166, 255, 0.3);
}

.header-content p {
    font-size: 1rem;
    color: #8b949e;
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* Language Selector */
.language-selector {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 8px;
    /* เว้นบรรทัดน้อยกว่า <br> */
}

.lang-btn {
    background: rgba(33, 38, 45, 0.8);
    border: 2px solid #30363d;
    color: #c9d1d9;
    padding: 8px 12px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
    font-family: inherit;
}

.lang-btn:hover {
    background: rgba(88, 166, 255, 0.1);
    border-color: #58a6ff;
    transform: translateY(-1px);
}

.lang-btn.active {
    background: linear-gradient(135deg, #58a6ff, #1f6feb);
    border-color: #58a6ff;
    color: #ffffff;
    box-shadow: 0 0 15px rgba(88, 166, 255, 0.4);
}

/* Flag Icon Styles */
.flag-icon {
    width: 20px;
    height: 15px;
    margin-right: 6px;
    vertical-align: middle;
    border-radius: 2px;
    object-fit: cover;
}

/* Responsive Header */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        gap: 15px;
    }

    .language-selector {
        justify-content: center;
    }
}

/* Mortar Type Selection */
.mortar-type-section {
    background: rgba(0, 0, 0, 0.6);
    padding: 15px;
    border-radius: 10px;
    border: 2px solid #30363d;
    margin-bottom: 15px;
}

.mortar-type-section h2 {
    color: #f0883e;
    font-size: 1.2rem;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.mortar-type-selector {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.type-option {
    display: flex;
    align-items: center;
    cursor: pointer;
    padding: 10px;
    background: rgba(48, 54, 61, 0.3);
    border-radius: 8px;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.type-option:hover {
    background: rgba(48, 54, 61, 0.6);
    border-color: #58a6ff;
}

.type-option input[type="radio"] {
    display: none;
}

.checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid #58a6ff;
    border-radius: 50%;
    margin-right: 10px;
    position: relative;
    transition: all 0.3s ease;
}

.type-option input[type="radio"]:checked+.checkmark {
    background: #58a6ff;
    box-shadow: 0 0 10px rgba(88, 166, 255, 0.5);
}

.type-option input[type="radio"]:checked+.checkmark::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 8px;
    background: #0d1117;
    border-radius: 50%;
}

.label-text {
    color: #c9d1d9;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Shell Selection */
.shell-selection {
    background: rgba(0, 0, 0, 0.6);
    padding: 15px;
    border-radius: 10px;
    border: 2px solid #30363d;
    margin-bottom: 15px;
}

.shell-selection h2 {
    color: #ff6b6b;
    font-size: 1.2rem;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.shell-buttons {
    display: flex;
    gap: 8px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}

.shell-btn {
    flex: 1;
    padding: 12px 15px;
    background: rgba(48, 54, 61, 0.6);
    color: #c9d1d9;
    border: 2px solid #30363d;
    border-radius: 8px;
    font-family: 'Consolas', monospace;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 80px;
}

.shell-btn:hover {
    border-color: #f0883e;
    background: rgba(240, 136, 62, 0.2);
}

.shell-btn.active {
    background: linear-gradient(135deg, #f0883e, #e67e22);
    color: #000;
    border-color: #f0883e;
    box-shadow: 0 0 15px rgba(240, 136, 62, 0.4);
}

.shell-info {
    text-align: center;
    color: #8b949e;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Input Section */
.input-section {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 20px;
}

.position-card {
    background: rgba(0, 0, 0, 0.6);
    padding: 15px;
    border-radius: 10px;
    border: 2px solid #30363d;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.card-header h3 {
    font-size: 1.1rem;
    margin: 0;
}

.weapon-position .card-header h3 {
    color: #ff6b6b;
}

.target-position .card-header h3 {
    color: #4ecdc4;
}

.indicator {
    background: rgba(88, 166, 255, 0.8);
    color: #000;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    color: #c9d1d9;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 1px;
}

.form-group input {
    width: 100%;
    padding: 12px;
    border: 2px solid #30363d;
    border-radius: 8px;
    font-size: 1rem;
    background: rgba(0, 0, 0, 0.5);
    color: #58a6ff;
    font-family: 'Consolas', monospace;
    transition: all 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: #58a6ff;
    box-shadow: 0 0 15px rgba(88, 166, 255, 0.3);
    background: rgba(0, 0, 0, 0.7);
}

.form-group input::placeholder {
    color: #6e7681;
    font-style: italic;
}

/* Grid Coordinate Styles */
.coordinate-group {
    margin-bottom: 15px;
}

.form-row {
    display: flex;
    gap: 10px;
}

.form-row .form-group {
    flex: 1;
    margin-bottom: 10px;
}

.grid-display {
    background: rgba(48, 54, 61, 0.4);
    padding: 10px;
    border-radius: 6px;
    border: 1px solid #30363d;
    margin-bottom: 10px;
    text-align: center;
}

.grid-label {
    color: #8b949e;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    display: block;
    margin-bottom: 4px;
}

.grid-value {
    color: #58a6ff;
    font-family: 'Consolas', monospace;
    font-size: 1.1rem;
    font-weight: bold;
    text-shadow: 0 0 5px rgba(88, 166, 255, 0.3);
}

/* Grid Warning Styles */
.grid-warning {
    background: rgba(255, 193, 7, 0.15);
    border: 1px solid rgba(255, 193, 7, 0.4);
    border-radius: 6px;
    padding: 8px 12px;
    margin-top: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.grid-warning:hover {
    background: rgba(255, 193, 7, 0.25);
    border-color: rgba(255, 193, 7, 0.6);
}

.warning-icon {
    font-size: 1rem;
    animation: pulse 2s infinite;
}

.warning-text {
    color: #ffc107;
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
        opacity: 1;
    }

    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

/* Calculate Button */
.calculate-button {
    width: 100%;
    background: linear-gradient(135deg, #238636, #2ea043);
    color: #ffffff;
    padding: 18px;
    border: none;
    border-radius: 10px;
    font-size: 1.2rem;
    font-weight: bold;
    font-family: 'Consolas', monospace;
    text-transform: uppercase;
    letter-spacing: 2px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 20px;
    border: 2px solid transparent;
}

.calculate-button:hover {
    background: linear-gradient(135deg, #2ea043, #238636);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(35, 134, 54, 0.4);
    border-color: #2ea043;
}

/* Results Section */
.results-section {
    background: rgba(0, 0, 0, 0.8);
    padding: 15px;
    border-radius: 10px;
    border: 2px solid #30363d;
    margin-bottom: 20px;
    display: none;
}

.results-section.show {
    display: block;
    animation: slideUp 0.5s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.results-section h2.result-header {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    color: #238636;
    font-size: 1.3rem;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 2px;
    text-align: center;
    border-bottom: 2px solid #238636;
    padding-bottom: 8px;
}

.mortar-badge {
    background: linear-gradient(135deg, #1f6feb, #58a6ff);
    color: #ffffff;
    padding: 2px 10px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 900;
    letter-spacing: 1.5px;
    box-shadow: 0 0 10px rgba(88, 166, 255, 0.4);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.2);
    display: inline-block;
    vertical-align: middle;
}

.firing-solution-title .mortar-badge {
    margin-left: 8px;
    font-size: 0.65rem;
    padding: 1px 8px;
}

.result-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 10px;
    margin-bottom: 15px;
}

.result-item {
    background: rgba(48, 54, 61, 0.4);
    padding: 12px;
    border-radius: 8px;
    text-align: center;
    border-left: 4px solid #58a6ff;
    transition: transform 0.3s ease;
}

.result-item:hover {
    transform: translateY(-2px);
}

.result-item label {
    display: block;
    font-size: 0.8rem;
    color: #8b949e;
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.result-item span {
    font-size: 1.1rem;
    color: #58a6ff;
    font-weight: bold;
    font-family: 'Consolas', monospace;
}

/* Special result colors */
.distance-result {
    border-left-color: #f0883e;
}

.distance-result span {
    color: #f0883e;
}

.azimuth-result {
    border-left-color: #ff6b6b;
}

.azimuth-result span {
    color: #ff6b6b;
}

.elevation-result {
    border-left-color: #4ecdc4;
}

.elevation-result span {
    color: #4ecdc4;
    white-space: pre-line;
    line-height: 1.4;
}

.charge-result {
    border-left-color: #238636;
}

.charge-result span {
    color: #238636;
}

.time-result {
    border-left-color: #a855f7;
}

.time-result span {
    color: #a855f7;
}

/* Additional Info */
.additional-info {
    margin-top: 15px;
    padding: 10px;
    background: rgba(48, 54, 61, 0.3);
    border-radius: 8px;
    border: 1px dashed #30363d;
}

/* Ballistic Section */
.ballistic-section {
    background: rgba(0, 0, 0, 0.8);
    padding: 15px;
    border-radius: 10px;
    border: 2px solid #30363d;
    margin-bottom: 20px;
}

.ballistic-section h2 {
    color: #58a6ff;
    font-size: 1.2rem;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.charge-tabs {
    display: flex;
    gap: 5px;
    margin-bottom: 10px;
    overflow-x: auto;
    padding-bottom: 5px;
}

.charge-tab {
    padding: 8px 15px;
    background: rgba(48, 54, 61, 0.6);
    color: #c9d1d9;
    border: 2px solid #30363d;
    border-radius: 6px;
    font-family: 'Consolas', monospace;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
    flex-shrink: 0;
}

.charge-tab:hover {
    border-color: #58a6ff;
    background: rgba(88, 166, 255, 0.2);
}

.charge-tab.active {
    background: linear-gradient(135deg, #58a6ff, #4a90e2);
    color: #000;
    border-color: #58a6ff;
}

/* Table */
.table-container {
    overflow-x: auto;
    border-radius: 8px;
    background: rgba(48, 54, 61, 0.3);
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
    font-family: 'Consolas', monospace;
}

th,
td {
    padding: 8px 10px;
    text-align: center;
    border-bottom: 1px solid rgba(48, 54, 61, 0.5);
}

th {
    background: rgba(48, 54, 61, 0.8);
    color: #58a6ff;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.75rem;
    position: sticky;
    top: 0;
}

tr:hover {
    background: rgba(88, 166, 255, 0.1);
}

tr.highlighted {
    background: rgba(88, 166, 255, 0.3) !important;
    color: #000;
    font-weight: bold;
}

/* Footer */
footer {
    text-align: center;
    padding: 15px;
    color: #6e7681;
    font-size: 0.8rem;
    border-top: 1px solid #30363d;
}

/* Visitor Counter Styles */
.visitor-counter {
    margin-top: 20px;
    padding: 20px;
    background: #161b22;
    border: 1px solid #30363d;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.visitor-counter h3 {
    margin: 0 0 15px 0;
    color: #58a6ff;
    font-size: 1.1rem;
    font-weight: 600;
    text-align: center;
}

.counter-container {
    display: flex;
    flex-direction: column;
    gap: 15px;
    align-items: center;
}

.flag-counter {
    text-align: center;
}

.flag-counter img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.local-counter {
    display: flex;
    justify-content: space-around;
    width: 100%;
    max-width: 400px;
    background: #0d1117;
    border: 1px solid #21262d;
    border-radius: 6px;
    padding: 15px;
}

.counter-item {
    text-align: center;
    flex: 1;
}

.counter-item .label {
    color: #8b949e;
    font-size: 0.8rem;
    margin-bottom: 5px;
    display: block;
}

.counter-item .value {
    color: #58a6ff;
    font-size: 1.2rem;
    font-weight: 600;
    display: block;
}

/* Tablet Styles */
@media (min-width: 768px) {
    .container {
        padding: 20px;
        max-width: 1200px;
    }

    .header-content h1 {
        font-size: 2.5rem;
    }

    .mortar-type-selector {
        flex-direction: row;
        justify-content: center;
        gap: 20px;
    }

    .input-section {
        flex-direction: row;
        gap: 20px;
    }

    .position-card {
        flex: 1;
    }

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

    .shell-buttons {
        justify-content: center;
    }

    .shell-btn {
        flex: none;
        min-width: 100px;
    }
}

/* Desktop Styles */
@media (min-width: 1024px) {
    .result-grid {
        grid-template-columns: repeat(6, 1fr);
    }

    .charge-tabs {
        justify-content: center;
    }

    table {
        font-size: 0.9rem;
    }

    th,
    td {
        padding: 10px 15px;
    }

    .preset-btn {
        min-width: 36px;
        min-height: 36px;
        padding: 5px 7px;
    }

    .preset-number {
        font-size: 1rem;
    }

    .preset-status {
        font-size: 0.55rem;
    }
}

/* Tablet and smaller screens - 2 rows layout */
@media (max-width: 640px) {
    .preset-buttons {
        gap: 3px;
        flex-wrap: wrap;
        justify-content: center;
        overflow-x: visible;
        max-width: 100%;
    }

    .preset-btn {
        flex: 1 1 calc(20% - 3px);
        /* 5 buttons per row */
        min-width: 40px;
        max-width: 60px;
    }
}

/* Mobile adjustments for preset buttons */
@media (max-width: 480px) {
    .preset-buttons {
        gap: 3px;
        flex-wrap: wrap;
        justify-content: center;
        overflow-x: visible;
        max-width: 100%;
    }

    .preset-btn {
        min-width: 45px;
        max-width: 50px;
        min-height: 38px;
        padding: 3px 5px;
        touch-action: manipulation;
        user-select: none;
        -webkit-user-select: none;
        -webkit-touch-callout: none;
        flex: 0 0 calc(20% - 3px);
        margin-bottom: 3px;
    }

    .preset-number {
        font-size: 0.85rem;
    }

    .preset-status {
        font-size: 0.45rem;
    }

    .preset-instructions small {
        font-size: 0.6rem;
        line-height: 1.3;
    }
}

/* Extra small mobile screens */
@media (max-width: 360px) {
    .preset-buttons {
        gap: 2px;
    }

    .preset-btn {
        min-width: 40px;
        max-width: 45px;
        min-height: 36px;
        padding: 2px 4px;
        flex: 0 0 calc(20% - 2px);
        margin-bottom: 2px;
    }

    .preset-number {
        font-size: 0.75rem;
    }

    .preset-status {
        font-size: 0.4rem;
    }
}

/* Touch feedback animations */
.preset-btn {
    transition: all 0.2s ease;
}

.preset-btn:active {
    transform: scale(0.95);
}

/* Touch device specific styles */
.touch-device .preset-btn {
    min-height: 40px;
    padding: 6px 8px;
}

.touch-device .preset-btn:hover {
    /* Disable hover effects on touch devices */
    background: rgba(48, 54, 61, 0.7);
    border-color: #30363d;
    transform: none;
}

.touch-device .preset-btn.has-data:hover {
    background: rgba(220, 38, 38, 0.3);
    border-color: #dc2626;
}

/* Long press visual feedback */
@keyframes longPressPulse {

    0%,
    100% {
        box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4);
    }

    50% {
        box-shadow: 0 0 0 8px rgba(34, 197, 94, 0.1);
    }
}

/* Instructions styling */
.mobile-instructions {
    color: #fbbf24 !important;
    font-weight: 500 !important;
}

.desktop-instructions {
    color: #6e7681;
}

/* Coordinate Guide Section */
.coordinate-guide {
    margin-top: 15px;
    background: rgba(34, 197, 94, 0.1);
    border: 2px solid rgba(34, 197, 94, 0.3);
    border-radius: 10px;
    padding: 12px;
}

.coordinate-guide h4 {
    color: #22c55e;
    font-size: 0.9rem;
    margin: 0 0 10px 0;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-align: center;
}

.guide-toggle {
    cursor: pointer;
    user-select: none;
    transition: all 0.3s ease;
    padding: 8px;
    border-radius: 6px;
}

.guide-toggle:hover {
    background: rgba(34, 197, 94, 0.2);
    transform: translateY(-1px);
}

.guide-content {
    display: none;
    flex-direction: column;
    gap: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.guide-content.show {
    display: flex;
}

.guide-image {
    width: 100%;
    max-width: none;
}

.guide-img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    border: 2px solid rgba(34, 197, 94, 0.3);
    max-height: 500px;
    object-fit: contain;
}

.guide-text {
    width: 100%;
}

.guide-text p {
    color: #22c55e;
    font-weight: bold;
    margin-bottom: 10px;
    font-size: 0.9rem;
}

.guide-steps {
    list-style: none;
    padding: 0;
    margin: 0;
}

.guide-steps li {
    color: #c9d1d9;
    font-size: 0.85rem;
    line-height: 1.4;
    margin-bottom: 6px;
    padding-left: 10px;
}

/* Mobile adjustments for coordinate guide */
@media (max-width: 768px) {
    .guide-content {
        gap: 10px;
    }

    .guide-img {
        max-height: 300px;
    }

    .guide-steps li {
        font-size: 0.8rem;
    }

    .guide-text p {
        font-size: 0.85rem;
    }
}

/* YouTube Tutorial Section */
.youtube-tutorial {
    margin-top: 15px;
    background: transparent;
    border: none;
    border-radius: 10px;
    padding: 12px;
}

.youtube-tutorial h4 {
    color: #c9d1d9;
    font-size: 0.9rem;
    margin: 0 0 10px 0;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-align: center;
}

.video-container {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 56.25%;
    /* 16:9 aspect ratio */
    overflow: hidden;
    border-radius: 8px;
    background: #000;
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
    border-radius: 8px;
}

/* Responsive adjustments for video */
@media (max-width: 768px) {
    .youtube-tutorial {
        padding: 8px;
        margin-top: 10px;
    }

    .youtube-tutorial h4 {
        font-size: 0.8rem;
        margin-bottom: 8px;
    }

    .video-container {
        padding-bottom: 56.25%;
        /* Maintain 16:9 on mobile */
    }
}

@media (max-width: 480px) {
    .video-container {
        padding-bottom: 50%;
        /* Slightly shorter on very small screens */
    }
}

/* Error States */
.error {
    border-color: #ff6b6b !important;
    box-shadow: 0 0 15px rgba(255, 107, 107, 0.3) !important;
    animation: shake 0.5s ease-in-out;
}

@keyframes shake {

    0%,
    100% {
        transform: translateX(0);
    }

    25% {
        transform: translateX(-5px);
    }

    75% {
        transform: translateX(5px);
    }
}

.success {
    border-color: #238636 !important;
    box-shadow: 0 0 15px rgba(35, 134, 54, 0.3) !important;
}

/* Loading States */
.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(88, 166, 255, 0.3), transparent);
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% {
        left: -100%;
    }

    100% {
        left: 100%;
    }
}

/* Physics Information Styles */
.physics-info {
    background: linear-gradient(90deg, #1f6feb, #388bfd) !important;
    color: white !important;
    font-weight: bold !important;
    text-align: center !important;
    padding: 8px !important;
    border-radius: 6px !important;
    margin: 10px 0 5px 0 !important;
    box-shadow: 0 2px 8px rgba(31, 111, 235, 0.3) !important;
}

.physics-info strong {
    font-size: 0.95rem !important;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3) !important;
}

/* Enhanced info items for physics data */
.additional-info .info-item:has(strong:contains("Muzzle Velocity")),
.additional-info .info-item:has(strong:contains("Physics Elevation")),
.additional-info .info-item:has(strong:contains("Physics Time")) {
    background: rgba(31, 111, 235, 0.1);
    border-left: 3px solid #1f6feb;
    padding-left: 12px;
    margin-left: 5px;
}

/* Ballistic trajectory visualization hint */
.trajectory-hint {
    font-style: italic;
    color: #7d8590;
    font-size: 0.85rem;
    text-align: center;
    margin-top: 10px;
    padding: 8px;
    background: rgba(31, 111, 235, 0.05);
    border-radius: 4px;
    border: 1px dashed #30363d;
}

/* Mils System Information Styles */
.mil-system-info {
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.15), rgba(139, 69, 193, 0.15)) !important;
    border: 2px solid rgba(168, 85, 247, 0.4) !important;
    border-radius: 8px !important;
    padding: 10px !important;
    margin: 8px 0 !important;
    text-align: center !important;
}

.mil-system-info strong {
    color: #a855f7 !important;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3) !important;
    font-size: 1rem !important;
    text-transform: uppercase !important;
    letter-spacing: 1px !important;
}

/* Highlight mils values in results */
.result-value:contains('mils') {
    background: rgba(168, 85, 247, 0.1);
    padding: 2px 6px;
    border-radius: 4px;
    border: 1px solid rgba(168, 85, 247, 0.3);
}

/* Accuracy Warning Styles */
.accuracy-warning {
    background: linear-gradient(135deg, rgba(255, 193, 7, 0.15), rgba(255, 152, 0, 0.15));
    border: 2px solid rgba(255, 193, 7, 0.6);
    border-radius: 10px;
    padding: 15px;
    margin: 15px 0;
    animation: warningPulse 2s infinite;
}

.warning-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.accuracy-warning .warning-icon {
    font-size: 1.2rem;
    color: #ffc107;
    animation: shake 1s infinite;
}

.warning-header strong {
    color: #ffc107;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.accuracy-warning .warning-text {
    color: #ffc107;
    font-size: 0.95rem;
    font-weight: 500;
    line-height: 1.5;
    padding-left: 32px;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

@keyframes warningPulse {

    0%,
    100% {
        box-shadow: 0 0 10px rgba(255, 193, 7, 0.3);
        transform: scale(1);
    }

    50% {
        box-shadow: 0 0 20px rgba(255, 193, 7, 0.5);
        transform: scale(1.02);
    }
}

@keyframes shake {

    0%,
    100% {
        transform: rotate(0deg);
    }

    25% {
        transform: rotate(-5deg);
    }

    75% {
        transform: rotate(5deg);
    }
}

/* Credits Section */
.credits {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid #30363d;
    text-align: center;
}

.credits p {
    margin: 0;
    font-size: 0.9rem;
    color: #8b949e;
}

.youtube-link {
    color: #ff4444;
    text-decoration: none;
    font-weight: bold;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 8px;
    border-radius: 6px;
    transition: all 0.3s ease;
    background: rgba(255, 68, 68, 0.1);
    border: 1px solid rgba(255, 68, 68, 0.2);
}

.youtube-link:hover {
    background: rgba(255, 68, 68, 0.2);
    border-color: #ff4444;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(255, 68, 68, 0.3);
}

.youtube-icon {
    font-size: 1.1rem;
    animation: pulse 2s infinite;
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.1);
    }
}

/* RING Calculation Section */
.ring-section {
    background: rgba(0, 0, 0, 0.8);
    padding: 15px;
    border-radius: 10px;
    border: 2px solid #30363d;
    margin-bottom: 20px;
    display: none;
}

.ring-section.show {
    display: block;
    animation: slideUp 0.5s ease-out;
}

.ring-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    flex-wrap: wrap;
    gap: 10px;
}

.ring-header h3 {
    color: #fbbf24;
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin: 0;
}

.ring-calculate-button {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: #ffffff;
    padding: 8px 16px;
    border: none;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: bold;
    font-family: 'Consolas', monospace;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.ring-calculate-button:hover {
    background: linear-gradient(135deg, #d97706, #f59e0b);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
    border-color: #f59e0b;
}

.ring-results {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 10px;
}

.ring-item {
    background: rgba(48, 54, 61, 0.4);
    padding: 10px;
    border-radius: 6px;
    text-align: center;
    border-left: 4px solid #fbbf24;
    transition: all 0.3s ease;
    position: relative;
}

.ring-item.available {
    border-left-color: #10b981;
    cursor: pointer;
}

.ring-item.available:hover {
    transform: translateY(-2px);
    background: rgba(16, 185, 129, 0.2);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.ring-item.out-of-range {
    border-left-color: #ef4444;
    opacity: 0.6;
}

.ring-item .ring-label {
    font-size: 0.8rem;
    color: #8b949e;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.ring-item .ring-number {
    font-size: 1.2rem;
    font-weight: bold;
    font-family: 'Consolas', monospace;
    margin-bottom: 4px;
}

.ring-item.available .ring-number {
    color: #10b981;
}

.ring-item.out-of-range .ring-number {
    color: #ef4444;
}

.ring-item .ring-range {
    font-size: 0.7rem;
    color: #8b949e;
    line-height: 1.2;
}

.ring-item.available .ring-range {
    color: #34d399;
}

.ring-item.current-ring {
    border-left-color: #4CAF50;
    background: rgba(76, 175, 80, 0.2);
    box-shadow: 0 0 15px rgba(76, 175, 80, 0.4);
    transform: translateY(-2px);
}

.ring-item.current-ring .ring-number {
    color: #4CAF50;
    font-weight: bold;
    text-shadow: 0 0 10px rgba(76, 175, 80, 0.5);
}

.ring-item.current-ring .ring-label {
    color: #4CAF50;
}

.ring-item.current-ring .ring-range {
    color: #81C784;
}

.ring-no-data {
    grid-column: 1 / -1;
    text-align: center;
    padding: 20px;
    color: #8b949e;
    font-style: italic;
}

/* Mobile adjustments for ring section */
@media (max-width: 768px) {
    .ring-header {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
    }

    .ring-calculate-button {
        width: 100%;
    }

    .ring-results {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
        gap: 8px;
    }

    .ring-item {
        padding: 8px;
    }

    .ring-item .ring-number {
        font-size: 1rem;
    }
}

/* Numpad Reference Styles */
.numpad-reference {
    background: rgba(59, 130, 246, 0.15);
    border: 2px solid rgba(59, 130, 246, 0.4);
    border-radius: 6px;
    padding: 8px;
    margin: 10px 0;
}

.numpad-reference h4 {
    color: #3b82f6;
    font-size: 0.75rem;
    margin: 0 0 6px 0;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-align: center;
}

.numpad-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3px;
    margin-bottom: 6px;
}

.numpad-btn {
    background: rgba(48, 54, 61, 0.8);
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: 4px;
    padding: 4px 2px;
    color: #c9d1d9;
    font-family: 'Consolas', monospace;
    font-size: 0.65rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 32px;
    position: relative;
    overflow: hidden;
}

.numpad-btn:hover {
    background: rgba(59, 130, 246, 0.2);
    border-color: rgba(59, 130, 246, 0.6);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.numpad-btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 6px rgba(59, 130, 246, 0.3);
}

.numpad-btn.numpad-active {
    background: rgba(59, 130, 246, 0.4);
    border-color: rgba(59, 130, 246, 0.8);
    box-shadow: 0 0 15px rgba(59, 130, 246, 0.5);
    transform: translateY(-1px);
}

.numpad-btn.numpad-active .numpad-number {
    color: #60a5fa;
    text-shadow: 0 0 8px rgba(96, 165, 250, 0.8);
}

.numpad-btn.numpad-active .numpad-coords {
    color: #93c5fd;
}

.numpad-number {
    font-size: 0.85rem;
    font-weight: bold;
    color: #3b82f6;
    text-shadow: 0 0 3px rgba(59, 130, 246, 0.5);
    margin-bottom: 1px;
}

.numpad-coords {
    font-size: 0.5rem;
    color: #8b949e;
    text-align: center;
    line-height: 1.1;
}

.numpad-instructions {
    text-align: center;
    margin-top: 4px;
}

.numpad-instructions small {
    color: #8b949e;
    font-size: 0.6rem;
    line-height: 1.2;
}

/* Touch device support for numpad */
.touch-device .numpad-btn {
    min-height: 35px;
    font-size: 0.65rem;
}

.touch-device .numpad-number {
    font-size: 0.9rem;
}

/* Mobile adjustments for numpad */
@media (max-width: 768px) {
    .numpad-reference {
        padding: 6px;
        margin: 8px 0;
    }

    .numpad-grid {
        gap: 2px;
    }

    .numpad-btn {
        min-height: 28px;
        padding: 3px 2px;
        font-size: 0.6rem;
    }

    .numpad-number {
        font-size: 0.75rem;
    }

    .numpad-coords {
        font-size: 0.45rem;
    }

    .numpad-instructions small {
        font-size: 0.55rem;
    }
}

/* Elevation Offset Styles */
.elevation-offset-section {
    background: rgba(139, 69, 19, 0.15);
    border: 2px solid rgba(139, 69, 19, 0.4);
    border-radius: 8px;
    padding: 8px;
    margin: 12px 0 0 0;
}

.elevation-offset-section h4 {
    color: #cd853f;
    font-size: 0.8rem;
    margin: 0 0 6px 0;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-align: center;
}

.offset-instructions {
    text-align: center;
    margin-bottom: 8px;
}

.offset-instructions small {
    color: #8b949e;
    font-size: 0.6rem;
    line-height: 1.2;
}

.offset-buttons {
    display: flex;
    gap: 4px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 8px;
}

.offset-btn {
    background: rgba(139, 69, 19, 0.3);
    border: 2px solid rgba(139, 69, 19, 0.6);
    color: #cd853f;
    padding: 4px 6px;
    border-radius: 6px;
    font-size: 0.7rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 42px;
    min-height: 32px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.offset-btn:hover {
    background: rgba(139, 69, 19, 0.5);
    border-color: rgba(139, 69, 19, 0.8);
    transform: translateY(-1px);
}

.offset-btn:active {
    transform: translateY(0);
}

.offset-btn.offset-negative {
    background: rgba(220, 38, 38, 0.3);
    border-color: rgba(220, 38, 38, 0.6);
    color: #ef4444;
}

.offset-btn.offset-negative:hover {
    background: rgba(220, 38, 38, 0.5);
    border-color: rgba(220, 38, 38, 0.8);
}

.offset-btn.offset-positive {
    background: rgba(34, 197, 94, 0.3);
    border-color: rgba(34, 197, 94, 0.6);
    color: #22c55e;
}

.offset-btn.offset-positive:hover {
    background: rgba(34, 197, 94, 0.5);
    border-color: rgba(34, 197, 94, 0.8);
}

.offset-btn.offset-clear {
    min-width: 50px;
    font-weight: bold;
}

.offset-btn.offset-clear {
    background: rgba(59, 130, 246, 0.3);
    border-color: rgba(59, 130, 246, 0.6);
    color: #3b82f6;
}

.offset-btn.offset-clear:hover {
    background: rgba(59, 130, 246, 0.5);
    border-color: rgba(59, 130, 246, 0.8);
}

.offset-btn.offset-active {
    background: rgba(251, 191, 36, 0.4);
    border-color: rgba(251, 191, 36, 0.8);
    color: #fbbf24;
    box-shadow: 0 0 8px rgba(251, 191, 36, 0.3);
}

.offset-status {
    text-align: center;
    margin-top: 4px;
}

.offset-status small {
    color: #8b949e;
    font-size: 0.6rem;
}

.offset-status #current-offset-value {
    color: #fbbf24;
    font-weight: bold;
}

/* Touch device support for offset buttons */
.touch-device .offset-btn {
    min-height: 30px;
    font-size: 0.65rem;
    padding: 5px 10px;
}

/* Mobile adjustments for offset */
@media (max-width: 768px) {
    .elevation-offset-section {
        padding: 6px;
        margin: 8px 0 0 0;
    }

    .offset-buttons {
        gap: 3px;
    }

    .offset-btn {
        min-width: 36px;
        min-height: 28px;
        padding: 3px 4px;
        font-size: 0.65rem;
    }

    .offset-btn.offset-clear {
        min-width: 42px;
    }

    .offset-instructions small {
        font-size: 0.55rem;
    }

    .offset-status small {
        font-size: 0.55rem;
    }
}

/* Ultra small screens for offset */
@media (max-width: 480px) {
    .offset-btn {
        min-width: 32px;
        min-height: 26px;
        padding: 2px 3px;
        font-size: 0.6rem;
    }

    .offset-btn.offset-clear {
        min-width: 38px;
    }
}

/* Ultra small screens */
@media (max-width: 480px) {
    .numpad-btn {
        min-height: 25px;
        padding: 2px 1px;
    }

    .numpad-number {
        font-size: 0.7rem;
    }

    .numpad-coords {
        font-size: 0.4rem;
    }

    /* Visitor Counter Mobile Styles */
    .visitor-counter {
        padding: 15px;
        margin-top: 15px;
    }

    .visitor-counter h3 {
        font-size: 1rem;
        margin-bottom: 10px;
    }

    .local-counter {
        flex-direction: column;
        gap: 10px;
        padding: 10px;
    }

    .counter-item {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 5px 0;
    }

    .counter-item .label {
        font-size: 0.75rem;
        margin-bottom: 0;
    }

    .counter-item .value {
        font-size: 1rem;
    }
}

/* Fixed Bottom Firing Solution Bar */
.fixed-firing-solution {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.95), rgba(13, 17, 23, 0.98));
    border-top: 3px solid #238636;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.5);
    z-index: 1000;
    padding: 8px 10px;
    backdrop-filter: blur(10px);
    display: none;
}

.fixed-firing-solution.active {
    display: block;
    animation: slideUpBar 0.5s ease-out;
}

@keyframes slideUpBar {
    from {
        transform: translateY(100%);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.firing-solution-container {
    max-width: 1800px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
    /* Prevent overlap on any screen size */
}

.firing-solution-title {
    color: #238636;
    font-weight: bold;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    white-space: nowrap;
    min-width: 150px;
}

.firing-solution-data {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    /* Prevent items from squishing and overlapping */
    flex: 1;
    align-items: center;
    justify-content: center;
}

.fs-item {
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(48, 54, 61, 0.4);
    padding: 6px 12px;
    border-radius: 6px;
    border-left: 3px solid #58a6ff;
    white-space: nowrap;
}

.fs-label {
    color: #8b949e;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.fs-value {
    color: #58a6ff;
    font-family: 'Consolas', monospace;
    font-size: 0.85rem;
    font-weight: bold;
}

/* Special colors for each item */
.fs-item:nth-child(1) {
    border-left-color: #f0883e;
}

.fs-item:nth-child(1) .fs-value {
    color: #f0883e;
}

.fs-item:nth-child(2) {
    border-left-color: #ff6b6b;
}

.fs-item:nth-child(2) .fs-value {
    color: #ff6b6b;
}

.fs-item:nth-child(3) {
    border-left-color: #4ecdc4;
}

.fs-item:nth-child(3) .fs-value {
    color: #4ecdc4;
}

.fs-item:nth-child(4) {
    border-left-color: #238636;
}

.fs-item:nth-child(4) .fs-value {
    color: #238636;
}

.fs-item:nth-child(5) {
    border-left-color: #a855f7;
}

.fs-item:nth-child(5) .fs-value {
    color: #a855f7;
}

.fs-item:nth-child(6) {
    border-left-color: #fbbf24;
}

.fs-item:nth-child(6) .fs-value {
    color: #fbbf24;
}

/* Responsive adjustments */
@media (max-width: 1024px) {
    .firing-solution-container {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .firing-solution-title {
        font-size: 0.85rem;
        min-width: auto;
    }

    .firing-solution-data {
        gap: 8px;
        width: 100%;
        flex-wrap: wrap;
        justify-content: center;
    }

    .fs-item {
        flex: 1 1 calc(50% - 8px);
        min-width: 140px;
        padding: 5px 8px;
    }

    .fs-label {
        font-size: 0.65rem;
    }

    .fs-value {
        font-size: 0.75rem;
    }
}

@media (max-width: 640px) {
    .fixed-firing-solution {
        padding: 5px 8px;
        overflow-x: hidden;
    }

    .firing-solution-container {
        flex-direction: column;
        /* Stack header and data vertically */
        flex-wrap: nowrap;
        gap: 12px;
        justify-content: center;
        padding: 5px 0;
    }

    .firing-solution-container::-webkit-scrollbar {
        height: 4px;
    }

    .firing-solution-container::-webkit-scrollbar-track {
        background: rgba(0, 0, 0, 0.3);
        border-radius: 2px;
    }

    .firing-solution-container::-webkit-scrollbar-thumb {
        background: #238636;
        border-radius: 2px;
    }

    .firing-solution-title {
        font-size: 0.7rem;
        min-width: 120px;
        flex-shrink: 0;
    }

    .firing-solution-data {
        display: flex;
        flex-direction: column;
        /* Stack data items vertically into a single column */
        flex-wrap: nowrap;
        gap: 6px;
        width: 100%;
        justify-content: center;
    }

    .fs-item {
        width: 100%;
        /* Force items to take full width of column */
        justify-content: space-between;
        max-width: 320px;
        /* Prevent it from being too wide on landscape phone */
        flex: 0 0 auto;
        padding: 5px 12px;
        min-height: 36px;
    }

    .fs-label {
        font-size: 0.6rem;
    }

    .fs-value {
        font-size: 0.7rem;
    }
}

/* Add bottom padding to container to prevent content from being hidden behind fixed bar */
body {
    padding-bottom: 80px;
}

@media (max-width: 1024px) {
    body {
        padding-bottom: 100px;
    }
}

@media (max-width: 640px) {
    body {
        padding-bottom: 300px;
        /* More padding for vertical bar on mobile */
    }
}

/*
 * =======================================================================
 * ไม่อนุญาตให้นำไปใช้เพื่อแสวงหาผลกำไรใดๆทั้งสิ้น
 * หากนำไปใช้งานในส่วนอื่น ใส่เครดิต Youtube : Sitt Chanel ให้ด้วย
 * 
 * Not allowed to be used for any commercial purposes.
 * If used in other projects, please credit Youtube : Sitt Chanel
 * =======================================================================
 */