/*
 * QNM Analyser — Custom styles
 *
 * Author: Dr. Denys Dutykh
 *         Khalifa University of Science and Technology, Abu Dhabi, UAE
 *         https://www.denys-dutykh.com/
 */

/* ------------------------------------------------------------------ */
/* Base                                                                */
/* ------------------------------------------------------------------ */
html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background-color: #fafafa;
}

body:has(.dark-theme) {
    background-color: #1a1a1a;
}

#app-container {
    font-family: "Computer Modern", "Times New Roman", serif;
    min-height: 100vh;
    transition: background-color 0.3s, color 0.3s;
}

/* Universal button interaction feedback */
button {
    transition: all 0.2s ease;
}

button:active {
    transform: scale(0.97);
}

button:focus-visible {
    outline: 2px solid currentColor;
    outline-offset: 2px;
}

/* Universal link transitions */
a {
    transition: all 0.2s ease;
}

/* ------------------------------------------------------------------ */
/* Light theme (default)                                               */
/* ------------------------------------------------------------------ */
.light-theme {
    background-color: #fafafa;
    color: #222;
}

.light-theme .upload-slot {
    border-color: #ddd;
    background: white;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.light-theme .upload-slot:hover {
    border-color: #b0d4f1;
    box-shadow: 0 3px 10px rgba(0, 114, 178, 0.1);
}

.light-theme .upload-zone {
    border-color: #aaa;
    color: #555;
}

.light-theme .upload-zone:hover {
    border-color: #0072B2;
    background-color: #f0f8ff;
}

.light-theme .upload-zone a {
    color: #0072B2;
}

.light-theme .footer-text {
    color: #888;
}

.light-theme .footer-text a {
    color: #0072B2;
    border-bottom: 1px solid transparent;
}

.light-theme .footer-text a:hover {
    border-bottom-color: #0072B2;
}

.light-theme .subtitle {
    color: #666;
}

.light-theme .convergence-info {
    color: #0072B2;
    background: #f0f8ff;
}

.light-theme .theme-toggle-btn {
    background: #eee;
    border-color: #ccc;
    color: #333;
}

.light-theme .theme-toggle-btn:hover {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
}

.light-theme .report-btn {
    background-color: #f0f0f0;
}

.light-theme .report-btn:hover {
    background-color: #e4e4e4;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

.light-theme .slot-btn {
    background: #f0f0f0;
    border-color: #ccc;
    color: #333;
}

.light-theme .slot-btn:hover {
    background: #e0e0e0;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

.light-theme .inspect-panel {
    background: #fafafa;
    border-color: #ddd;
    color: #222;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}

.light-theme .converged-table-container h4 {
    color: #222;
}

.light-theme .tol-input:focus,
.light-theme .resolution-input:focus {
    border-color: #0072B2;
    box-shadow: 0 0 0 3px rgba(0, 114, 178, 0.12);
    outline: none;
}

.light-theme button:hover {
    background-color: #e8e8e8;
}

.light-theme .header-bar {
    border-bottom: 1px solid #eee;
}

/* Light slider — use !important to override Dash component styles */
.light-theme .tol-slider .rc-slider-track,
.light-theme .tol-slider [class*="slider"] [class*="track"] {
    background-color: #0072B2 !important;
    height: 6px !important;
    border-radius: 3px !important;
}

.light-theme .tol-slider .rc-slider-rail,
.light-theme .tol-slider [class*="slider"] [class*="rail"] {
    height: 6px !important;
    border-radius: 3px !important;
    background-color: #ddd !important;
}

.light-theme .tol-slider .rc-slider-handle,
.light-theme .tol-slider [class*="slider"] [class*="handle"] {
    border: 3px solid #0072B2 !important;
    background-color: white !important;
    box-shadow: 0 1px 4px rgba(0, 114, 178, 0.25) !important;
}

.light-theme .tol-slider .rc-slider-handle:hover,
.light-theme .tol-slider .rc-slider-handle:active,
.light-theme .tol-slider [class*="handle"]:hover,
.light-theme .tol-slider [class*="handle"]:active {
    border-color: #005a8e !important;
    box-shadow: 0 2px 6px rgba(0, 114, 178, 0.35) !important;
}

.light-theme .tol-slider .rc-slider-mark-text,
.light-theme .tol-slider [class*="mark"] span,
.light-theme .tol-slider span[class*="mark"] {
    color: #555 !important;
}

/* ------------------------------------------------------------------ */
/* Dark theme                                                          */
/* ------------------------------------------------------------------ */
.dark-theme {
    background-color: #1a1a1a;
    color: #e0e0e0;
}

.dark-theme .upload-slot {
    border-color: #444;
    background: #2a2a2a;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.25);
}

.dark-theme .upload-slot:hover {
    border-color: #4a7fa5;
    box-shadow: 0 3px 10px rgba(86, 180, 233, 0.1);
}

.dark-theme .upload-zone {
    border-color: #555;
    color: #aaa;
}

.dark-theme .upload-zone:hover {
    border-color: #56B4E9;
    background-color: #333;
}

.dark-theme .upload-zone a {
    color: #56B4E9;
}

.dark-theme .footer-text {
    color: #777;
}

.dark-theme .footer-text a {
    color: #56B4E9;
    border-bottom: 1px solid transparent;
}

.dark-theme .footer-text a:hover {
    border-bottom-color: #56B4E9;
}

.dark-theme .subtitle {
    color: #999;
}

.dark-theme .convergence-info {
    color: #56B4E9;
    background: rgba(86, 180, 233, 0.1);
}

.dark-theme .theme-toggle-btn {
    background: #333;
    border-color: #555;
    color: #e0e0e0;
}

.dark-theme .theme-toggle-btn:hover {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.dark-theme .tol-input,
.dark-theme .resolution-input {
    background-color: #333;
    color: #e0e0e0;
    border-color: #555;
}

.dark-theme .tol-input:focus,
.dark-theme .resolution-input:focus {
    border-color: #56B4E9;
    box-shadow: 0 0 0 3px rgba(86, 180, 233, 0.15);
    outline: none;
}

.dark-theme .clear-btn {
    background-color: #333;
    color: #ccc;
    border-color: #555;
}

.dark-theme .clear-btn:hover {
    background-color: #444;
}

.dark-theme .report-btn {
    background-color: #333;
    color: #e0e0e0;
    border-color: #555;
}

.dark-theme .report-btn:hover {
    background-color: #3d3d3d;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

.dark-theme button {
    background-color: #333;
    color: #e0e0e0;
    border-color: #555;
}

.dark-theme button:hover {
    background-color: #444;
}

.dark-theme .Select-control,
.dark-theme .Select-menu-outer {
    background-color: #333 !important;
    color: #e0e0e0 !important;
    border-color: #555 !important;
}

.dark-theme .filename-label {
    color: #999;
}

.dark-theme .slot-btn {
    background: #333;
    border-color: #555;
    color: #e0e0e0;
}

.dark-theme .slot-btn:hover {
    background: #444;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

.dark-theme .inspect-panel {
    background: #2a2a2a;
    border-color: #555;
    color: #e0e0e0;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

.dark-theme .converged-table-container h4 {
    color: #e0e0e0;
}

.dark-theme .header-bar {
    border-bottom: 1px solid #333;
}

/* Dark slider — use !important to override Dash inline/component styles */
.dark-theme .tol-slider .rc-slider-rail,
.dark-theme .tol-slider [class*="slider"] [class*="rail"] {
    background-color: #555 !important;
    height: 6px !important;
    border-radius: 3px !important;
}

.dark-theme .tol-slider .rc-slider-track,
.dark-theme .tol-slider [class*="slider"] [class*="track"] {
    background-color: #56B4E9 !important;
    height: 6px !important;
    border-radius: 3px !important;
}

.dark-theme .tol-slider .rc-slider-handle,
.dark-theme .tol-slider [class*="slider"] [class*="handle"] {
    border: 3px solid #56B4E9 !important;
    background-color: #333 !important;
    box-shadow: 0 1px 4px rgba(86, 180, 233, 0.3) !important;
}

.dark-theme .tol-slider .rc-slider-handle:hover,
.dark-theme .tol-slider .rc-slider-handle:active,
.dark-theme .tol-slider [class*="handle"]:hover,
.dark-theme .tol-slider [class*="handle"]:active {
    border-color: #7dc8f0 !important;
    box-shadow: 0 2px 6px rgba(86, 180, 233, 0.45) !important;
}

.dark-theme .tol-slider .rc-slider-dot,
.dark-theme .tol-slider [class*="slider"] [class*="dot"] {
    border-color: #666 !important;
    background-color: #444 !important;
}

.dark-theme .tol-slider .rc-slider-mark-text,
.dark-theme .tol-slider [class*="mark"] span,
.dark-theme .tol-slider span[class*="mark"] {
    color: #bbb !important;
}

.dark-theme .tol-slider .rc-slider-tooltip-inner,
.dark-theme .tol-slider [class*="tooltip"] {
    background-color: #444 !important;
    color: #e0e0e0 !important;
}

/* ------------------------------------------------------------------ */
/* Header                                                              */
/* ------------------------------------------------------------------ */
.header-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 14px 20px 10px;
    position: relative;
}

.header-bar h2 {
    font-family: "Computer Modern", "Times New Roman", serif;
}

/* ------------------------------------------------------------------ */
/* Theme toggle                                                        */
/* ------------------------------------------------------------------ */
.theme-toggle-btn {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 20px;
    border: 1px solid;
    border-radius: 50%;
    width: 38px;
    height: 38px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    transition: all 0.2s ease;
}

.theme-toggle-btn:hover {
    opacity: 0.85;
}

.theme-toggle-btn:active {
    transform: translateY(-50%) scale(0.93);
}

/* ------------------------------------------------------------------ */
/* Subtitle                                                            */
/* ------------------------------------------------------------------ */
.subtitle {
    text-align: center;
    font-size: 14px;
    margin: 0 0 12px;
    line-height: 1.5;
}

/* ------------------------------------------------------------------ */
/* Upload panel                                                        */
/* ------------------------------------------------------------------ */
.upload-panel {
    display: flex;
    gap: 16px;
    padding: 0 16px 12px;
    justify-content: center;
    flex-wrap: wrap;
}

.upload-slot {
    flex: 1;
    max-width: 280px;
    min-width: 220px;
    border: 1px solid;
    border-radius: 8px;
    padding: 12px;
    transition: all 0.3s ease;
}

.upload-zone {
    width: 100%;
    height: 60px;
    line-height: 60px;
    border-width: 2px;
    border-style: dashed;
    border-radius: 5px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 14px;
}

.filename-label {
    font-size: 12px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 120px;
}

.resolution-input {
    width: 70px;
    font-size: 13px;
    transition: all 0.2s ease;
}

.clear-btn {
    margin-left: 8px;
    font-size: 12px;
    padding: 2px 10px;
    cursor: pointer;
}

/* ------------------------------------------------------------------ */
/* Controls bar                                                        */
/* ------------------------------------------------------------------ */
.controls-bar {
    text-align: center;
    padding: 14px 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
}

.tol-input {
    width: 80px;
    font-size: 14px;
    vertical-align: middle;
    transition: all 0.2s ease;
}

.convergence-info {
    font-size: 13px;
    padding: 3px 10px;
    border-radius: 12px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.legend-dropdown {
    width: 150px;
    display: inline-block;
    vertical-align: middle;
}

.report-btn {
    padding: 8px 20px;
    font-size: 14px;
    cursor: pointer;
}

/* ------------------------------------------------------------------ */
/* Slot controls (add/remove dataset buttons)                          */
/* ------------------------------------------------------------------ */
.slot-controls {
    display: flex;
    justify-content: center;
    gap: 10px;
    padding: 0 16px 8px;
}

.slot-btn {
    padding: 5px 14px;
    font-size: 13px;
    border: 1px solid;
    border-radius: 5px;
    cursor: pointer;
    font-family: "Computer Modern", "Times New Roman", serif;
    transition: all 0.2s ease;
}

/* ------------------------------------------------------------------ */
/* Tolerance slider                                                    */
/* ------------------------------------------------------------------ */
.tol-slider {
    width: 200px;
    display: inline-block;
    vertical-align: middle;
}

/* ------------------------------------------------------------------ */
/* Click-to-inspect panel                                              */
/* ------------------------------------------------------------------ */
.inspect-panel {
    max-width: 600px;
    margin: 8px auto;
    padding: 10px 20px;
    border: 1px solid;
    border-radius: 8px;
    font-size: 14px;
    font-family: "Computer Modern", "Times New Roman", serif;
    text-align: center;
    transition: all 0.3s ease;
}

/* ------------------------------------------------------------------ */
/* Converged QNMs table                                                */
/* ------------------------------------------------------------------ */
.converged-table-container {
    max-width: 960px;
    margin: 8px auto;
    padding: 0 16px;
}

/* ------------------------------------------------------------------ */
/* Footer                                                              */
/* ------------------------------------------------------------------ */
.footer-text {
    text-align: center;
    font-size: 13px;
    margin: 0 0 12px;
}

/* ------------------------------------------------------------------ */
/* Responsive                                                          */
/* ------------------------------------------------------------------ */
@media (max-width: 768px) {
    .controls-bar {
        flex-direction: column;
        gap: 10px;
        padding: 12px 16px;
    }

    .upload-slot {
        max-width: 100%;
        min-width: unset;
    }

    .legend-dropdown {
        width: 100%;
    }

    .tol-slider {
        width: 100%;
    }

    .inspect-panel {
        margin: 8px 16px;
    }
}

@media (max-width: 480px) {
    .header-bar {
        padding: 10px 12px 8px;
    }

    .upload-panel {
        padding: 0 10px 10px;
        gap: 10px;
    }

    .controls-bar {
        padding: 10px 12px;
    }

    .converged-table-container {
        padding: 0 10px;
    }
}