/**
 * AVB Bandwidth Calculator - Custom Styles
 * Overrides and additions for Pico CSS
 */

/* Header Logo */
.header-logo {
    position: absolute;
    top: 1rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 0;
    pointer-events: none;
}

.header-logo img {
    max-width: 100px;
    height: auto;
    opacity: 0.12;
}

header.container {
    position: relative;
}

header.container nav {
    position: relative;
    z-index: 1;
}

/* Tab Navigation */
nav ul:last-child {
    gap: 0.5rem;
}

nav .tab {
    padding: 0.5rem 1rem;
    border-radius: var(--pico-border-radius);
    text-decoration: none;
    transition: background-color 0.2s ease;
}

nav .tab:hover {
    background-color: var(--pico-secondary-hover-background);
}

nav .tab.active {
    background-color: var(--pico-primary-background);
    color: var(--pico-primary-inverse);
}

/* Panel visibility */
.panel {
    display: none;
}

.panel.active {
    display: block;
}

/* Calculator grid layout - side by side on desktop */
.calculator-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 992px) {
    .calculator-grid {
        grid-template-columns: 1fr 1fr;
        gap: 3rem;
    }
}

.inputs-column,
.answers-column {
    padding: 1.5rem;
    border-radius: var(--pico-border-radius);
    background-color: var(--pico-card-background-color);
    box-shadow: var(--pico-card-box-shadow);
}

.inputs-column > header,
.answers-column > header {
    font-weight: 600;
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--pico-primary);
    color: var(--pico-primary);
}

/* Make the answers column sticky on desktop */
@media (min-width: 992px) {
    .answers-column {
        position: sticky;
        top: 1rem;
        align-self: start;
    }
}

/* Output fields (readonly) - subtle background to distinguish from inputs */
input[readonly] {
    background-color: var(--pico-form-element-disabled-background-color);
    border-color: var(--pico-form-element-disabled-border-color);
    opacity: 1;
    cursor: default;
}

/* Compact results grid */
.results-grid {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.result-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.4rem 0;
    border-bottom: 1px solid var(--pico-muted-border-color);
}

.result-row:last-child {
    border-bottom: none;
}

.result-label {
    color: var(--pico-muted-color);
    font-size: 0.9rem;
}

.result-value {
    font-weight: 600;
    font-family: var(--pico-font-family-monospace);
    text-align: right;
}

.result-value.success {
    color: var(--pico-ins-color);
}

.result-value.error {
    color: var(--pico-del-color);
}

/* Details panel - formatted output */
.details-grid {
    display: grid;
    gap: 1.5rem;
}

.details-section {
    background-color: var(--pico-card-background-color);
    border-radius: var(--pico-border-radius);
    padding: 1rem 1.5rem;
    box-shadow: var(--pico-card-box-shadow);
}

.details-section h3 {
    margin: 0 0 1rem 0;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--pico-primary);
    color: var(--pico-primary);
    font-size: 1.1rem;
}

.details-row {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--pico-muted-border-color);
    gap: 1rem;
}

.details-row:last-child {
    border-bottom: none;
}

.details-label {
    color: var(--pico-muted-color);
    flex: 1;
}

.details-label::after {
    content: ": ";
    white-space: pre;
}

.details-value {
    font-weight: 600;
    text-align: right;
    font-family: var(--pico-font-family-monospace);
}

.details-value.success {
    color: var(--pico-ins-color);
}

.details-value.error {
    color: var(--pico-del-color);
}

/* Frame breakdown table */
.frame-breakdown {
    width: 100%;
    margin-top: 0.5rem;
    font-size: 0.9rem;
}

.frame-breakdown td {
    padding: 0.25rem 0.5rem;
}

.frame-breakdown td:last-child {
    text-align: right;
    font-family: var(--pico-font-family-monospace);
}

/* Raw JSON toggle */
#details details {
    margin-top: 1.5rem;
}

#details summary {
    cursor: pointer;
    color: var(--pico-muted-color);
    font-size: 0.9rem;
}

/* JSON output panel */
#output_detail {
    background-color: var(--pico-code-background-color);
    padding: 1rem;
    border-radius: var(--pico-border-radius);
    overflow-x: auto;
    font-size: 0.85rem;
    max-height: 50vh;
    overflow-y: auto;
    margin-top: 1rem;
}

/* Article headers */
article > header {
    font-weight: 600;
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

/* Slider with number input */
.slider-with-input {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.slider-with-input input[type="range"] {
    flex: 1;
    margin-bottom: 0;
}

.slider-with-input input[type="number"] {
    width: 5rem;
    margin-bottom: 0;
    text-align: center;
}

/* Footer styling */
footer {
    text-align: center;
    padding: 1rem 0;
    margin-top: 2rem;
    border-top: 1px solid var(--pico-muted-border-color);
}

/* Mobile optimizations */
@media (max-width: 576px) {
    /* Stack navigation tabs on small screens */
    header nav {
        flex-direction: column;
        gap: 1rem;
    }

    header nav ul {
        justify-content: center;
        flex-wrap: wrap;
    }

    nav .tab {
        padding: 0.5rem 0.75rem;
        font-size: 0.9rem;
    }

    /* Ensure form elements are touch-friendly */
    input[type="range"] {
        height: 2.5rem;
    }

    select, input, button {
        font-size: 16px; /* Prevent iOS zoom on focus */
    }
}

/* Tablet and up */
@media (min-width: 768px) {
    /* Keep navigation inline */
    header nav ul:last-child {
        gap: 0.25rem;
    }
}

/* Info panel styling */
#info h3 {
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--pico-primary);
}

#info h4 {
    margin-top: 1rem;
    margin-bottom: 0.25rem;
}

#info p {
    margin-bottom: 0.75rem;
}

/* Smooth transitions */
.panel {
    animation: fadeIn 0.2s ease-in-out;
}

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

/* Checkbox fieldset */
fieldset {
    border: none;
    padding: 0;
    margin: 0 0 1rem 0;
}

fieldset label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

fieldset input[type="checkbox"] {
    margin: 0;
}

/* Plot Panel */
.plot-container {
    position: relative;
    width: 100%;
    max-width: 800px;
    margin: 0 auto 1rem auto;
    aspect-ratio: 16 / 9;
}

.plot-container canvas {
    width: 100% !important;
    height: 100% !important;
}

.plot-legend {
    text-align: center;
    color: var(--pico-muted-color);
    font-size: 0.9rem;
    max-width: 600px;
    margin: 0 auto;
}

/* Mobile adjustments for plot */
@media (max-width: 576px) {
    .plot-container {
        aspect-ratio: 4 / 3;
    }
}

/* Update notification banner */
.update-banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--pico-primary);
    color: var(--pico-primary-inverse);
    padding: 0.75rem 1rem;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    z-index: 1000;
    font-size: 0.95rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.update-banner[hidden] {
    display: none;
}

.update-banner button {
    margin: 0;
    padding: 0.4rem 1rem;
    font-size: 0.85rem;
    background-color: var(--pico-primary-inverse);
    color: var(--pico-primary);
    border: none;
    border-radius: var(--pico-border-radius);
    cursor: pointer;
    transition: opacity 0.2s ease;
}

.update-banner button:hover {
    opacity: 0.9;
}