/* Main styles for Chemistry Calculations Tutor */
/* Modernized from basic.css */

:root {
    --primary-color: #09F;
    --border-color: #DDD;
    --text-color: #333;
    --muted-color: #999;
    --background-color: #FAFAFA;
    --box-background: #FFF;
    --box-padding: 1.25rem;
    --box-margin: 1rem;
    --border-radius: 6px;
    --transition-speed: 0.2s;
}

* {
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    margin: 0;
    padding: 1rem;
    max-width: 900px;
    margin: 0 auto;
}

/* Links */
a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-speed);
}

a:hover {
    text-decoration: underline;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
    margin-top: 0;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

/* Box containers */
.box {
    background-color: var(--box-background);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--box-padding);
    margin-bottom: var(--box-margin);
}

/* Question selection */
#questionSelection {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

#questionSelection h4 {
    margin: 0;
    margin-right: 1rem;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--muted-color);
}

.questionLink {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2.5rem;
    padding: 0.5rem 0.75rem;
    background-color: var(--primary-color);
    color: white;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: 500;
    font-size: 0.875rem;
    transition: background-color var(--transition-speed), transform var(--transition-speed);
}

.questionLink:hover {
    background-color: #007ACC;
    transform: translateY(-1px);
}

.questionLink:active {
    transform: translateY(0);
}

/* Tooltip styles */
.questionLink[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-4px);
    padding: 0.5rem 0.75rem;
    background-color: var(--text-color);
    color: white;
    font-size: 0.75rem;
    font-weight: 400;
    white-space: nowrap;
    border-radius: 4px;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-speed), visibility var(--transition-speed);
    pointer-events: none;
    z-index: 100;
}

.questionLink[data-tooltip]::before {
    content: '';
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(2px);
    border: 6px solid transparent;
    border-top-color: var(--text-color);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-speed), visibility var(--transition-speed);
    pointer-events: none;
    z-index: 100;
}

.questionLink[data-tooltip]:hover::after,
.questionLink[data-tooltip]:hover::before {
    opacity: 1;
    visibility: visible;
}

/* Question display */
#questionDisplay {
    display: none;
}

#titleContainer {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 1.1rem;
}

#stemContainer {
    font-size: 1rem;
    line-height: 1.8;
}

#answerContainer,
#solutionContainer {
    display: none;
    margin-top: 1rem;
}

#showAnswer,
#showSolution {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: #F0F0F0;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 0.875rem;
    transition: background-color var(--transition-speed);
}

#showAnswer:hover,
#showSolution:hover {
    background-color: #E0E0E0;
}

/* Options/Checkboxes */
.options {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.options label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.9rem;
}

.options input[type="checkbox"] {
    width: 1.1rem;
    height: 1.1rem;
    cursor: pointer;
}

/* Footer */
#bottomBar {
    border: none !important;
    font-size: 0.75rem;
    color: var(--muted-color);
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
    padding: 0.5rem 0;
    margin-top: 1rem;
}

#bottomBar > div {
    flex: 1;
    min-width: 200px;
}

#bottomBar > div:last-child {
    text-align: right;
}

/* Tracking spans (data-track) */
span[data-track] {
    border-bottom: 1px dotted #CCC;
    cursor: default;
    padding: 0 2px;
    border-radius: 2px;
    transition: background-color var(--transition-speed);
}

/* Tables (if needed) */
table {
    border-collapse: collapse;
    border: 1px solid var(--border-color);
}

td {
    border: 1px solid var(--border-color);
    padding: 0.5rem;
}

table.borderless {
    border: none;
}

table.borderless td {
    border: none;
}

/* Responsive adjustments */
@media (max-width: 600px) {
    body {
        padding: 0.5rem;
    }

    .box {
        padding: 1rem;
        margin-bottom: 0.75rem;
    }

    #questionSelection {
        justify-content: center;
    }

    #questionSelection h4 {
        width: 100%;
        text-align: center;
        margin-bottom: 0.5rem;
    }

    #bottomBar {
        flex-direction: column;
        text-align: center !important;
    }

    #bottomBar > div,
    #bottomBar > div:last-child {
        text-align: center !important;
    }
}

/* Animation for showing content */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-5px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

#questionDisplay.show {
    animation: fadeIn 0.3s ease-out;
}

/* Floating menu button */
.menu-toggle {
    position: fixed;
    top: 1rem;
    left: 1rem;
    z-index: 1001;
    width: 44px;
    height: 44px;
    border: none;
    border-radius: var(--border-radius);
    background-color: var(--primary-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color var(--transition-speed), transform var(--transition-speed);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.menu-toggle:hover {
    background-color: #007ACC;
    transform: scale(1.05);
}

.menu-icon {
    width: 20px;
    height: 2px;
    background-color: white;
    position: relative;
    transition: background-color var(--transition-speed);
}

.menu-icon::before,
.menu-icon::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 2px;
    background-color: white;
    left: 0;
    transition: transform var(--transition-speed);
}

.menu-icon::before {
    top: -6px;
}

.menu-icon::after {
    top: 6px;
}

/* Transform to X when panel is open */
.menu-toggle.active .menu-icon {
    background-color: transparent;
}

.menu-toggle.active .menu-icon::before {
    transform: rotate(45deg) translate(4px, 4px);
}

.menu-toggle.active .menu-icon::after {
    transform: rotate(-45deg) translate(4px, -4px);
}

/* Sliding question panel */
.question-panel {
    position: fixed;
    top: 0;
    left: 0;
    width: 320px;
    height: 100vh;
    background-color: var(--box-background);
    border-right: 1px solid var(--border-color);
    box-shadow: 2px 0 12px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transform: translateX(-100%);
    transition: transform 0.3s ease-in-out;
    overflow-y: auto;
    padding: 4.5rem 1rem 1rem 1rem;
}

.question-panel.open {
    transform: translateX(0);
}

.question-panel h3 {
    margin: 0 0 1rem 0;
    color: var(--primary-color);
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

.question-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.75rem;
    margin-bottom: 0.5rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background-color var(--transition-speed);
}

.question-list li:hover {
    background-color: var(--background-color);
}

.question-list li:active {
    background-color: #E8F4FD;
}

.q-id {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2.25rem;
    height: 2.25rem;
    padding: 0 0.5rem;
    background-color: var(--primary-color);
    color: white;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 0.8rem;
    flex-shrink: 0;
}

.q-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.q-title {
    font-weight: 600;
    color: var(--text-color);
    font-size: 0.9rem;
}

.q-desc {
    color: var(--muted-color);
    font-size: 0.8rem;
    line-height: 1.4;
}

/* Adjust body padding when panel is open */
body.panel-open {
    padding-left: 340px;
}

@media (max-width: 800px) {
    body.panel-open {
        padding-left: 1rem;
    }

    .question-panel {
        width: 280px;
    }
}