/* Scuba Diving Calculations - Styles */

/* Base Styles */
:root {
    --primary-color: #0077b6;
    --secondary-color: #00b4d8;
    --accent-color: #90e0ef;
    --dark-color: #03045e;
    --light-color: #caf0f8;
    --warning-color: #ff4d4d;
    --success-color: #4caf50;
    --border-radius: 8px;
    --box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --table-header-bg: #0077b6;
    --table-header-color: white;
    --table-border: #ccc;
    --table-row-even: #f2f2f2;
    --table-row-hover: #e6f7ff;
    --table-cell-padding: 8px;
    --group-a-color: #e6f7ff;
    --group-b-color: #ccefff;
    --group-c-color: #b3e7ff;
    --group-d-color: #99dfff;
    --group-e-color: #80d7ff;
    --group-f-color: #66cfff;
    --group-g-color: #4dc7ff;
    --group-h-color: #33bfff;
    --group-i-color: #1ab8ff;
    --group-j-color: #00b0ff;
    --group-k-color: #0099e6;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
    padding: 20px;
}

/* Typography */
h1, h2, h3 {
    color: var(--dark-color);
    margin-bottom: 0.5em;
}

h1 {
    font-size: 2.5rem;
    text-align: center;
}

h2 {
    font-size: 1.8rem;
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 0.3em;
    margin-bottom: 1em;
}

h3 {
    font-size: 1.3rem;
}

p {
    margin-bottom: 1em;
}

/* Layout */
header {
    text-align: center;
    margin-bottom: 2rem;
    padding: 1rem;
    background-color: var(--light-color);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

main {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 768px) {
    main {
        grid-template-columns: repeat(2, 1fr);
    }
}

.calculator-section {
    background-color: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

footer {
    text-align: center;
    margin-top: 2rem;
    padding: 1rem;
    background-color: var(--light-color);
    border-radius: var(--border-radius);
    font-size: 0.9rem;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: bold;
    color: var(--dark-color);
}

input[type="number"],
input[type="text"],
select {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    font-size: 1rem;
}

input[type="number"]:focus,
input[type="text"]:focus,
select:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 2px rgba(0, 119, 182, 0.2);
}

.radio-group {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 0.5rem;
}

.radio-label {
    display: flex;
    align-items: center;
    font-weight: normal;
    cursor: pointer;
}

input[type="radio"] {
    margin-right: 0.5rem;
    cursor: pointer;
}

.input-help {
    display: block;
    margin-top: 0.3rem;
    font-size: 0.8rem;
    color: #666;
    font-style: italic;
}

.calculate-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 0.8rem 1.5rem;
    font-size: 1rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background-color 0.3s;
    width: 100%;
}

.calculate-btn:hover {
    background-color: var(--dark-color);
}

/* Results */
.results-container {
    margin-top: 2rem;
    padding: 1.5rem;
    background-color: var(--light-color);
    border-radius: var(--border-radius);
    display: none;
}

.result-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.8rem;
    padding-bottom: 0.8rem;
    border-bottom: 1px solid #ddd;
}

#repetitive-dive-section {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 2px dashed var(--primary-color);
}

#repetitive-dive-section h4 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.result-label {
    font-weight: bold;
}

.result-value {
    font-family: monospace;
    font-size: 1.1rem;
}

.warning {
    margin-top: 1rem;
    padding: 0.8rem;
    background-color: var(--warning-color);
    color: white;
    border-radius: var(--border-radius);
    font-weight: bold;
    display: none;
}

/* Info Box */
.info-box {
    margin-top: 2rem;
    padding: 1.5rem;
    background-color: var(--accent-color);
    border-radius: var(--border-radius);
    color: var(--dark-color);
}

.info-box h3 {
    color: var(--dark-color);
}

.info-box ul,
.info-box ol {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

.info-box li {
    margin-bottom: 0.5rem;
}

.info {
    margin-bottom: 1.5rem;
    font-style: italic;
}

/* Tabs */
.tabs {
    display: flex;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--primary-color);
}

.tab-btn {
    padding: 0.8rem 1.5rem;
    background-color: #f5f5f5;
    border: none;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    cursor: pointer;
    font-weight: bold;
    margin-right: 0.5rem;
    transition: background-color 0.3s;
}

.tab-btn.active {
    background-color: var(--primary-color);
    color: white;
}

.tab-btn:hover:not(.active) {
    background-color: var(--accent-color);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* Interactive Instructions */
.interactive-instructions {
    background-color: var(--light-color);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
}

.interactive-instructions h3 {
    margin-top: 0;
    color: var(--primary-color);
    border-bottom: 1px solid var(--primary-color);
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
}

.interactive-instructions ol {
    margin-left: 1.5rem;
}

.interactive-instructions li {
    margin-bottom: 0.5rem;
}

.interactive-instructions strong {
    color: var(--primary-color);
}

/* Dive Tables */
.table-container {
    overflow-x: auto;
    margin-bottom: 2rem;
}

.dive-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}

/* Highlighted rows and cells */
.dive-table tr.highlighted-row {
    background-color: #ffff99 !important;
    font-weight: bold;
}

.dive-table td.highlighted-cell {
    background-color: #ffff99 !important;
    font-weight: bold;
}

.dive-table td.target-highlighted {
    background-color: #ff9999 !important;
    font-weight: bold;
    border: 2px solid #ff0000 !important;
    position: relative;
}

.dive-table td.target-highlighted::after {
    content: "Target";
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background-color: #ff0000;
    color: white;
    font-size: 0.7rem;
    padding: 2px 5px;
    border-radius: 3px;
    white-space: nowrap;
    z-index: 10;
}

/* Nitrox Settings Styles */
.nitrox-settings {
    background-color: #e6f7ff;
    padding: 15px;
    border-radius: 5px;
    margin-bottom: 20px;
    border: 1px solid #b3e0ff;
}

.nitrox-settings h3 {
    margin-top: 0;
    color: #0066cc;
}

.nitrox-settings .form-group {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.nitrox-settings input {
    width: 80px;
}

.nitrox-info {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px dashed #b3e0ff;
}

.nitrox-info .result-item {
    margin-bottom: 5px;
}

/* Adjusted depth row styles */
.dive-table tr.adjusted-depth {
    background-color: #e6fff2;
}

.dive-table tr.adjusted-depth td:first-child::after {
    content: "EANx";
    font-size: 0.7rem;
    background-color: #00cc66;
    color: white;
    padding: 2px 5px;
    border-radius: 3px;
    margin-left: 5px;
    vertical-align: middle;
}

.dive-table tr.beyond-mod {
    opacity: 0.5;
    position: relative;
}

.dive-table tr.beyond-mod::after {
    content: "Exceeds MOD";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: rgba(255, 0, 0, 0.8);
    color: white;
    padding: 5px 10px;
    border-radius: 3px;
    font-weight: bold;
    z-index: 10;
}

.dive-table tr.highlighted-row:hover {
    background-color: #ffff80 !important;
}

.dive-table tr.clickable {
    cursor: pointer;
}

.dive-table tr.clickable:hover {
    background-color: #f0f0f0;
}

.dive-table th,
.dive-table td {
    border: 1px solid var(--table-border);
    padding: var(--table-cell-padding);
    text-align: center;
}

.dive-table th {
    background-color: var(--table-header-bg);
    color: var(--table-header-color);
    font-weight: bold;
}

.dive-table tr:nth-child(even) {
    background-color: var(--table-row-even);
}

.dive-table tr:hover {
    background-color: var(--table-row-hover);
}

/* Pressure group colors */
.group-a { background-color: var(--group-a-color); }
.group-b { background-color: var(--group-b-color); }
.group-c { background-color: var(--group-c-color); }
.group-d { background-color: var(--group-d-color); }
.group-e { background-color: var(--group-e-color); }
.group-f { background-color: var(--group-f-color); }
.group-g { background-color: var(--group-g-color); }
.group-h { background-color: var(--group-h-color); }
.group-i { background-color: var(--group-i-color); }
.group-j { background-color: var(--group-j-color); }
.group-k { background-color: var(--group-k-color); }

/* Table cell with two values */
.cell-double {
    position: relative;
    padding: 0 !important;
    overflow: hidden;
}

.cell-double .top-value {
    display: block;
    background-color: rgba(0, 119, 182, 0.1);
    border-bottom: 2px solid var(--primary-color);
    padding: 4px;
    font-weight: bold;
}

.cell-double .bottom-value {
    display: block;
    background-color: rgba(0, 180, 216, 0.1);
    padding: 4px;
}

.cell-double .rnt-label,
.cell-double .andl-label {
    display: none;
    position: absolute;
    font-size: 0.7rem;
    color: var(--dark-color);
    background-color: rgba(255, 255, 255, 0.9);
    padding: 3px 6px;
    border-radius: 3px;
    z-index: 10;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    font-weight: bold;
}

.cell-double:hover .rnt-label,
.cell-double:hover .andl-label {
    display: block;
}

/* Improve tooltip appearance */
[title] {
    position: relative;
    cursor: help;
}

/* Enhance the native browser tooltip */
[title]:hover::after {
    content: attr(title);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background-color: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 0.8rem;
    white-space: normal;
    max-width: 300px;
    z-index: 100;
    pointer-events: none;
    text-align: left;
    line-height: 1.4;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
}

.cell-double .rnt-label {
    top: 0;
    left: 0;
}

.cell-double .andl-label {
    bottom: 0;
    left: 0;
}

/* Special cells */
.cell-nl {
    background-color: var(--accent-color);
    font-weight: bold;
}

.cell-unavailable {
    background-color: #f8d7da;
    color: #721c24;
}

/* Narcosis warning styles */
.narcosis-warning {
    background-color: #fff3cd;
    color: #856404;
}

.dive-table tr.narcosis-risk {
    background-color: #fff3cd;
}