/**
 * Hydrogen Atom Wave Function Visualization Styles
 * Scoped with .hydrogen-container prefix to prevent global style pollution
 */

.hydrogen-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    min-height: 100vh;
    color: #e4e4e4;
}

/* Header Styles */
.hydrogen-container header {
    text-align: center;
    margin-bottom: 30px;
    padding: 30px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
}

.hydrogen-container header h1 {
    margin: 0 0 15px 0;
    font-size: 2.8em;
    font-weight: 700;
    background: linear-gradient(135deg, #00d4ff 0%, #7b2cbf 50%, #f72585 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hydrogen-container .subtitle {
    margin: 0;
    font-size: 1.2em;
    color: #b8b8b8;
    font-weight: 500;
}

/* Main Content */
.hydrogen-container main {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 30px;
}

.hydrogen-container .main-layout {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 20px;
    align-items: start;
}

.hydrogen-container .middle-controls {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.hydrogen-container .control-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
}

.hydrogen-container .control-item {
    display: flex;
    flex-direction: column;
}

.hydrogen-container .control-item label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #e4e4e4;
    font-size: 0.9em;
}

.hydrogen-container .control-item select,
.hydrogen-container .control-item input[type="range"] {
    width: 100%;
}

@media (max-width: 1024px) {
    .hydrogen-container .main-layout {
        grid-template-columns: 1fr;
    }

    .hydrogen-container .control-row {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Canvas Container */
.hydrogen-container .canvas-container {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    position: relative;
    backdrop-filter: blur(10px);
}

.hydrogen-container #threeCanvas {
    width: 100%;
    height: auto;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 500px;
}

.hydrogen-container canvas {
    display: block;
    border-radius: 10px;
    cursor: grab;
}

.hydrogen-container canvas:active {
    cursor: grabbing;
}

.hydrogen-container .quantum-info {
    text-align: center;
    margin-top: 20px;
    padding: 15px;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.2) 0%, rgba(123, 44, 191, 0.2) 100%);
    border-radius: 8px;
    font-weight: 600;
    color: #00d4ff;
    font-size: 1.1em;
}

.hydrogen-container .quantum-info .separator {
    margin: 0 15px;
    color: #7b2cbf;
}

.hydrogen-container .quantum-info strong {
    color: #f72585;
    font-size: 1.2em;
}

/* Controls Section */
.hydrogen-container .controls {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
}

.hydrogen-container .control-group {
    margin-bottom: 25px;
}

.hydrogen-container .control-group label {
    display: block;
    margin-bottom: 10px;
    font-weight: 600;
    color: #e4e4e4;
    font-size: 1em;
}

.hydrogen-container .quantum-description {
    font-size: 0.85em;
    color: #b8b8b8;
    margin-top: 5px;
    line-height: 1.4;
}

.hydrogen-container .control-group input[type="range"] {
    width: 100%;
    height: 8px;
    border-radius: 5px;
    background: linear-gradient(90deg, #00d4ff 0%, #7b2cbf 50%, #f72585 100%);
    outline: none;
    -webkit-appearance: none;
    transition: all 0.3s;
}

.hydrogen-container .control-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: white;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
    border: 3px solid #00d4ff;
    transition: all 0.3s;
}

.hydrogen-container .control-group input[type="range"]::-webkit-slider-thumb:hover {
    background: #00d4ff;
    border-color: white;
    transform: scale(1.2);
}

.hydrogen-container .control-group input[type="range"]::-moz-range-thumb {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: white;
    cursor: pointer;
    border: 3px solid #00d4ff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
    transition: all 0.3s;
}

.hydrogen-container .control-group input[type="range"]::-moz-range-thumb:hover {
    background: #00d4ff;
    border-color: white;
    transform: scale(1.2);
}

.hydrogen-container .control-group select {
    width: 100%;
    padding: 10px 15px;
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    font-size: 1em;
    background-color: rgba(255, 255, 255, 0.1);
    color: #e4e4e4;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 500;
}

.hydrogen-container .control-group select:hover {
    border-color: #00d4ff;
    background-color: rgba(255, 255, 255, 0.15);
}

.hydrogen-container .control-group select:focus {
    outline: none;
    border-color: #7b2cbf;
    box-shadow: 0 0 0 3px rgba(123, 44, 191, 0.2);
}

.hydrogen-container .control-group select option {
    background-color: #1a1a2e;
    color: #e4e4e4;
}

.hydrogen-container .control-item select {
    width: 100%;
    padding: 10px 15px;
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    font-size: 0.95em;
    background-color: rgba(255, 255, 255, 0.1);
    color: #e4e4e4;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 500;
}

.hydrogen-container .control-item select:hover {
    border-color: #00d4ff;
    background-color: rgba(255, 255, 255, 0.15);
}

.hydrogen-container .control-item select:focus {
    outline: none;
    border-color: #7b2cbf;
    box-shadow: 0 0 0 3px rgba(123, 44, 191, 0.2);
}

.hydrogen-container .control-item select option {
    background-color: #1a1a2e;
    color: #e4e4e4;
}

.hydrogen-container .control-item input[type="range"] {
    width: 100%;
    height: 8px;
    border-radius: 5px;
    background: linear-gradient(90deg, #00d4ff 0%, #7b2cbf 50%, #f72585 100%);
    outline: none;
    -webkit-appearance: none;
    transition: all 0.3s;
}

.hydrogen-container .control-item input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: white;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
    border: 3px solid #00d4ff;
    transition: all 0.3s;
}

.hydrogen-container .control-item input[type="range"]::-webkit-slider-thumb:hover {
    background: #00d4ff;
    border-color: white;
    transform: scale(1.2);
}

.hydrogen-container .control-item input[type="range"]::-moz-range-thumb {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: white;
    cursor: pointer;
    border: 3px solid #00d4ff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
    transition: all 0.3s;
}

.hydrogen-container .control-item input[type="range"]::-moz-range-thumb:hover {
    background: #00d4ff;
    border-color: white;
    transform: scale(1.2);
}

/* Button Styles */
.hydrogen-container .button-group {
    display: flex;
    gap: 12px;
    margin: 30px 0;
    flex-wrap: wrap;
}

.hydrogen-container .btn {
    flex: 1;
    min-width: 120px;
    padding: 14px 24px;
    border: none;
    border-radius: 8px;
    font-size: 1em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.hydrogen-container .btn-primary {
    background: linear-gradient(135deg, #00d4ff 0%, #7b2cbf 100%);
    color: white;
}

.hydrogen-container .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 212, 255, 0.4);
}

.hydrogen-container .btn-secondary {
    background: #6c757d;
    color: white;
}

.hydrogen-container .btn-secondary:hover {
    background: #5a6268;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(108, 117, 125, 0.4);
}

.hydrogen-container .btn-tertiary {
    background: #28a745;
    color: white;
}

.hydrogen-container .btn-tertiary:hover {
    background: #218838;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(40, 167, 69, 0.4);
}

.hydrogen-container .btn-quaternary {
    background: linear-gradient(135deg, #f72585 0%, #7b2cbf 100%);
    color: white;
}

.hydrogen-container .btn-quaternary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(247, 37, 133, 0.4);
}

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

/* Info Panel */
.hydrogen-container .info-panel {
    margin-top: 25px;
    padding: 20px;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1) 0%, rgba(123, 44, 191, 0.1) 100%);
    border-radius: 10px;
    border-left: 5px solid #00d4ff;
}

.hydrogen-container .info-panel h3 {
    margin: 0 0 15px 0;
    color: #00d4ff;
    font-size: 1.2em;
    font-weight: 700;
}

.hydrogen-container .equation {
    font-family: 'Courier New', monospace;
    font-size: 1.15em;
    line-height: 2;
    color: #e4e4e4;
    background: rgba(255, 255, 255, 0.05);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.hydrogen-container .math {
    display: block;
    margin: 8px 0;
    font-weight: 600;
}

.hydrogen-container .probability-density {
    margin-top: 15px;
    padding: 10px;
    background: rgba(247, 37, 133, 0.2);
    border-radius: 5px;
    text-align: center;
    font-weight: 600;
    color: #f72585;
}

/* Orbital Presets */
.hydrogen-container .orbital-presets {
    padding: 20px 30px;
    background: linear-gradient(135deg, rgba(247, 37, 133, 0.1) 0%, rgba(123, 44, 191, 0.1) 100%);
    border-radius: 15px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
}

.hydrogen-container .orbital-presets h3 {
    margin: 0 0 15px 0;
    color: #f72585;
    font-size: 1.2em;
    font-weight: 700;
    text-align: center;
}

.hydrogen-container .preset-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: 8px;
}

.hydrogen-container .preset-btn {
    padding: 10px 5px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    color: #e4e4e4;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 0.9em;
}

.hydrogen-container .preset-btn:hover {
    background: rgba(0, 212, 255, 0.3);
    border-color: #00d4ff;
    transform: scale(1.05);
}

.hydrogen-container .preset-btn sub {
    font-size: 0.7em;
}

/* Explanation Section */
.hydrogen-container .explanation {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 40px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    line-height: 1.8;
    backdrop-filter: blur(10px);
}

.hydrogen-container .explanation h2 {
    color: #00d4ff;
    margin-bottom: 25px;
    font-size: 2em;
    border-bottom: 4px solid #00d4ff;
    padding-bottom: 15px;
}

.hydrogen-container .explanation h3 {
    color: #7b2cbf;
    margin-top: 35px;
    margin-bottom: 20px;
    font-size: 1.5em;
    font-weight: 700;
}

.hydrogen-container .explanation p {
    color: #b8b8b8;
    margin-bottom: 20px;
    font-size: 1.1em;
    line-height: 1.9;
}

.hydrogen-container .explanation ul {
    list-style: none;
    padding-left: 0;
}

.hydrogen-container .explanation li {
    padding: 18px 20px;
    margin-bottom: 15px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
    border-left: 5px solid #00d4ff;
    border-radius: 8px;
    color: #b8b8b8;
    font-size: 1.1em;
    transition: all 0.3s;
    line-height: 1.7;
}

.hydrogen-container .explanation li:hover {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1) 0%, rgba(123, 44, 191, 0.1) 100%);
    border-left-color: #f72585;
    transform: translateX(8px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.hydrogen-container .explanation strong {
    color: #e4e4e4;
    font-weight: 700;
}

/* Quantum Numbers Box */
.hydrogen-container .quantum-numbers-box {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin: 25px 0;
}

.hydrogen-container .quantum-number-item {
    padding: 20px;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1) 0%, rgba(123, 44, 191, 0.1) 100%);
    border-radius: 10px;
    border-left: 5px solid #00d4ff;
}

.hydrogen-container .quantum-number-item h4 {
    color: #00d4ff;
    margin: 0 0 10px 0;
    font-size: 1.1em;
}

.hydrogen-container .quantum-number-item p {
    color: #b8b8b8;
    font-size: 0.95em;
    line-height: 1.6;
}

/* Equation Box */
.hydrogen-container .equation-box {
    margin: 25px 0;
}

.hydrogen-container .equation-large {
    font-family: 'Courier New', monospace;
    background: rgba(255, 255, 255, 0.05);
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    margin-bottom: 20px;
}

.hydrogen-container .math-title {
    color: #00d4ff;
    font-weight: 700;
    display: block;
    margin-bottom: 10px;
}

.hydrogen-container .equation-code {
    color: #e4e4e4;
    line-height: 1.8;
    margin: 0;
    font-size: 0.95em;
    overflow-x: auto;
}

/* Orbital Gallery */
.hydrogen-container .orbital-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin: 25px 0;
}

.hydrogen-container .orbital-card {
    padding: 20px;
    background: linear-gradient(135deg, rgba(247, 37, 133, 0.1) 0%, rgba(123, 44, 191, 0.1) 100%);
    border-radius: 10px;
    border-left: 5px solid #f72585;
}

.hydrogen-container .orbital-card h4 {
    color: #f72585;
    margin: 0 0 10px 0;
    font-size: 1.1em;
}

.hydrogen-container .orbital-card p {
    color: #b8b8b8;
    font-size: 0.95em;
    line-height: 1.6;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hydrogen-container {
        padding: 15px;
    }

    .hydrogen-container header {
        padding: 20px;
    }

    .hydrogen-container header h1 {
        font-size: 2.2em;
    }

    .hydrogen-container .subtitle {
        font-size: 1em;
    }

    .hydrogen-container .main-layout {
        grid-template-columns: 1fr;
    }

    .hydrogen-container .controls {
        padding: 20px;
    }

    .hydrogen-container .control-row {
        grid-template-columns: 1fr;
        gap: 15px;
        padding: 15px;
    }

    .hydrogen-container .orbital-presets {
        padding: 15px;
    }

    .hydrogen-container .explanation {
        padding: 25px;
    }

    .hydrogen-container .explanation h2 {
        font-size: 1.6em;
    }

    .hydrogen-container .explanation h3 {
        font-size: 1.3em;
    }

    .hydrogen-container .button-group {
        flex-direction: column;
    }

    .hydrogen-container .btn {
        width: 100%;
        min-width: auto;
    }

    .hydrogen-container .equation-large {
        font-size: 0.85em;
        padding: 15px;
    }

    .hydrogen-container .quantum-numbers-box {
        grid-template-columns: 1fr;
    }

    .hydrogen-container .orbital-gallery {
        grid-template-columns: 1fr;
    }

    .hydrogen-container .preset-grid {
        grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
    }
}

/* Accessibility */
.hydrogen-container .control-group input[type="range"]:focus {
    outline: 3px solid #00d4ff;
    outline-offset: 2px;
}

.hydrogen-container .control-group select:focus {
    outline: 3px solid #00d4ff;
    outline-offset: 2px;
}

.hydrogen-container .control-item input[type="range"]:focus {
    outline: 3px solid #00d4ff;
    outline-offset: 2px;
}

.hydrogen-container .control-item select:focus {
    outline: 3px solid #00d4ff;
    outline-offset: 2px;
}

.hydrogen-container .btn:focus {
    outline: 3px solid #00d4ff;
    outline-offset: 2px;
}

.hydrogen-container .preset-btn:focus {
    outline: 3px solid #00d4ff;
    outline-offset: 2px;
}

/* Animation for loading */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hydrogen-container > * {
    animation: fadeIn 0.6s ease-out;
}

.hydrogen-container .explanation {
    animation-delay: 0.2s;
}

/* Scrollbar Styling (for explanation section on small screens) */
.hydrogen-container .explanation::-webkit-scrollbar {
    width: 10px;
}

.hydrogen-container .explanation::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 5px;
}

.hydrogen-container .explanation::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #00d4ff 0%, #7b2cbf 100%);
    border-radius: 5px;
}

.hydrogen-container .explanation::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #7b2cbf 0%, #f72585 100%);
}

/* Print Styles */
@media print {
    .hydrogen-container {
        background: white;
        color: black;
    }

    .hydrogen-container .controls,
    .hydrogen-container .button-group {
        display: none;
    }

    .hydrogen-container canvas {
        border: 1px solid #ccc;
    }

    .hydrogen-container .explanation {
        box-shadow: none;
        border: 1px solid #ccc;
    }

    .hydrogen-container .explanation h2 {
        color: black;
    }

    .hydrogen-container .explanation li {
        border-left-color: #ccc;
    }
}