/* ========== Root Variables ========== */
:root {
    --primary-color: #816f58;
    --primary-dark: #4D4129;
    --primary-light: #c0b499;
    --primary-lightest: #e9e2d5;
    --accent-color: #a17067;
    --accent-dark: #5e3d3d;
    --accent-light: #e9a3a9;
    --custom-black: #17120e;
    --custom-white: #ebe9e7;
    --text-primary: var(--primary-dark);
    --text-secondary: #6c757d;
    --bg-light: var(--primary-lightest);
    --bg-card: var(--custom-white);
    --border-color: var(--accent-color);
    --border-subtle: var(--primary-light);
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
}


/* ========== Base Styles ========== */
html {
    font-size: 14px;
    position: relative;
    min-height: 100%;
}

@media (min-width: 768px) {
    html {
        font-size: 16px;
    }
}

body {
    margin-bottom: 60px;
    background-color: var(--bg-light);
    color: var(--text-primary);  
    font-family: "Nunito", sans-serif;
    font-optical-sizing: auto;
    font-style: normal;
    font-weight: 400;
}

/* ========== Typography ========== */
h1, h2, h3, h4, h5, h6 {
    color: var(--primary-dark);
    font-family: "Nunito", sans-serif;
    font-optical-sizing: auto;
    font-style: normal;
    font-weight: 300;
}

.text-accent {
    color: var(--accent-dark);
    font-family: "Nunito", sans-serif;
    font-optical-sizing: auto;
    font-style: normal;
    font-weight: 500;
}

.text-primary-custom {
    font-family: "Nunito", sans-serif;
    font-optical-sizing: auto;
    font-style: normal;
    color: var(--primary-color);
}

.text-muted-custom {
    font-family: "Nunito", sans-serif;
    font-optical-sizing: auto;
    font-style: normal;
    color: var(--primary-light);
}

#file-name {
    color: var(--primary-dark);
    font-family: "Edu SA Hand", cursive;
    font-optical-sizing: auto;
    font-style: normal;
    font-weight: 600;
}

/* ========== Focus Styling ========== */
.btn:focus,
.btn:active:focus,
.btn-link.nav-link:focus,
.form-control:focus,
.form-check-input:focus {
    box-shadow: 0 0 0 0.1rem var(--custom-white), 0 0 0 0.25rem var(--accent-color);
}
.focus-visible {
    outline: 2px solid var(--accent-color);
}

/* ========== Navbar ========== */
.navbar {
    background-image: url('/lib/img/Web_Banner.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: var(--text-primary);
    padding: 30px 0;
    text-align: center;
    width: 100%;
    border-bottom: 3px solid var(--primary-color);
    box-shadow: 0 2px 8px var(--custom-black);
}

.navbar-custom {
    background-image: url('/lib/img/Web_Banner.png');
    background-size: cover;
    background-position: center;
    min-height: 100px;
    border-bottom: 3px solid var(--primary-color);
    box-shadow: 0 2px 8px var(--custom-black);
}

.navbar-brand {
    color: var(--text-primary) !important;
    font-size: 1.5rem;
    font-weight: 600;
    text-shadow: 1px 1px 2px var(--custom-white);
}

.navbar-brand:hover {
    color: var(--primary-color) !important;
    transform: translateY(-1px);
    transition: all 0.3s ease;
}

a.navbar-brand {
    white-space: normal;
    text-align: center;
    word-break: break-word;
}

/* ========== Footer ========== */
.footer,
.footer-custom {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--accent-dark) 100%);
    color: var(--custom-white);
    text-align: center;
    width: 100%;
    padding: 15px 0;
    line-height: 1.4;
    box-shadow: 0 -2px 8px var(--custom-black);
}

.footer {
    position: absolute;
    bottom: 0;
}

.footer-custom {
    background: linear-gradient(135deg, var(--bg-light) 0%, var(--primary-lightest) 100%);
    border-top: 2px solid var(--border-color);
    color: var(--text-primary);
    padding: 2rem 0;
    margin-top: 3rem;
}

/* ========== Buttons ========== */
.btn-primary {
    color: var(--custom-white);
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    border: 2px solid var(--primary-color);
    font-family: "Edu SA Hand", cursive;
    font-optical-sizing: auto;
    font-style: normal;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px var(--custom-black);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
    border-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px var(--custom-black);
}

.btn-primary-custom {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    border: 2px solid var(--primary-color);
    color: var(--custom-white);
    font-family: "Edu SA Hand", cursive;
    font-optical-sizing: auto;
    font-style: normal;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px var(--custom-black);
}

.btn-primary-custom:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
    border-color: var(--primary-dark);
    color: var(--custom-white);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px var(--custom-black);
}

.btn-outline-primary-custom {
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    font-family: "Edu SA Hand", cursive;
    font-optical-sizing: auto;
    font-style: normal;
    font-weight: 500;
    background: transparent;
    transition: all 0.3s ease;
}

.btn-outline-primary-custom:hover {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    border-color: var(--primary-color);
    color: var(--custom-white);
    transform: translateY(-1px);
    box-shadow: 0 2px 6px var(--custom-black);
}

.btn-accent {
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-dark) 100%);
    color: var(--custom-white);
    border: 2px solid var(--accent-color);
    font-family: "Edu SA Hand", cursive;
    font-optical-sizing: auto;
    font-style: normal;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px var(--custom-black);
}

.btn-accent:hover {
    background: linear-gradient(135deg, var(--accent-dark) 0%, var(--accent-color) 100%);
    border-color: var(--accent-dark);
    color: var(--custom-white);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px var(--custom-black);
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: var(--custom-white);
    font-family: "Edu SA Hand", cursive;
    font-optical-sizing: auto;
    font-style: normal;
    font-size: 18px;
    font-weight: bold;
    line-height: 1;
    text-align: center;
    border: 2px solid var(--primary-color);
    display: inline-flex;
    justify-content: center;
    align-items: center;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px var(--custom-black);
}

.btn-icon:hover {
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-dark) 100%);
    border-color: var(--accent-color);
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 4px 8px var(--custom-black);
}

/* ========== Form Controls ========== */
.form-control {
    border: 2px solid var(--border-subtle);
    border-radius: 8px;
    transition: all 0.3s ease;
    background-color: var(--bg-card);
}

.form-control:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 0.2rem var(--accent-color);
    background-color: var(--bg-card);
}

.form-select {
    border: 2px solid var(--border-subtle);
    border-radius: 8px;
    transition: all 0.3s ease;
    background-color: var(--bg-card);
}

.form-select:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 0.2rem var(--accent-color);
}

/* ========== Containers ========== */
#container-wrapper {
    display: flex;
    gap: 20px;
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-light) 100%);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    box-shadow: 0 4px 12px var(--custom-black);
}

#result-container {
    flex: 0 0 100%;
    background-color: var(--bg-card);
    padding: 15px;
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    overflow-y: auto;
    min-height: 750px;
}

#keyboard-ui-table {
    background-color: var(--bg-card);
}

/* For zebra striping */
#result-container table tbody tr:nth-child(odd) {
    background-color: lightgray;
}

#result-container table tbody tr:nth-child(even) {
    background-color: var(--bg-card);
}

#result-container table tbody tr:hover {
    background-color: var(--accent-light);
    transition: background-color 0.2s ease;
}

.notation-container,
.piano-container {
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-light) 100%);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    margin: 1rem 0;
    text-align: center;
    box-shadow: 0 4px 8px var(--custom-black);
}

/* ========== Cards and Content Sections ========== */
.card-custom {
    border: 2px solid var(--border-color);
    border-radius: 12px;
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-light) 100%);
    box-shadow: 0 4px 8px var(--custom-black);
    transition: all 0.3s ease;
}

.card-custom:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px var(--custom-black);
    border-color: var(--accent-color);
}

.search-section {
    background: linear-gradient(135deg, var(--bg-light) 0%, var(--primary-lightest) 100%);
    border: 2px solid var(--primary-color);
    border-radius: 12px;
    padding: 2.5rem;
    margin-bottom: 2rem;
    box-shadow: 0 4px 8px var(--custom-black);
}

/* ========== Results ========== */
.result-table {
    table-layout: fixed;
    background-color: var(--bg-card);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 4px var(--custom-black);
}

.name-cell {
    width: 30%;
    overflow-wrap: anywhere;
    padding: 12px;
    text-align: center;
}

.collection-cell {
    width: 20%;
    overflow-wrap: anywhere;
    padding: 12px;
    text-align: center;
}

.incipit-cell {
    width: 50%;
    padding: 12px;
    text-align: center;
}

.result-table th {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: var(--custom-white);
    font-weight: 600;
    padding: 15px 12px;
    text-shadow: 1px 1px 2px var(--custom-black);
}

/* ========== Metadata Table ========== */
.metadata-table th {
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-dark) 100%);
    color: var(--custom-white);
    font-weight: 600;
    padding: 12px;
    text-shadow: 1px 1px 2px var(--custom-black);
}

.metadata-table td {
    background-color: var(--bg-card);
    padding: 10px 12px;
    border: 1px solid var(--border-subtle);
}

.metadata-table tbody tr:nth-child(odd) td {
    background-color: var(--primary-lightest);
}

/* ========== Icons ========== */
.home-icon {
    color: var(--text-primary);
    font-size: 1.5rem;
    transition: all 0.3s ease;
    margin-left: 40px;
    outline-color: var(--accent-light);
}

.home-icon:hover {
    color: var(--accent-color);
    transform: scale(1.25);
}

/* ========== Utility Classes ========== */
.border-top {
    border-top: 2px solid var(--border-color) !important;
}

.border-bottom {
    border-bottom: 2px solid var(--border-color) !important;
}

.border-subtle {
    border: 1px solid var(--border-subtle) !important;
}

.bg-gradient-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
}

.bg-gradient-accent {
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-light) 100%);
}

.box-shadow {
    box-shadow: 0 4px 8px var(--custom-black);
}

.box-shadow-lg {
    box-shadow: 0 6px 12px var(--custom-black);
}

button.accept-policy {
    font-size: 1rem;
    line-height: inherit;
}

/* ========== Scrollbar Styling ========== */
.results-container::-webkit-scrollbar {
    width: 10px;
}

.results-container::-webkit-scrollbar-track {
    background: var(--bg-light);
    border-radius: 6px;
}

.results-container::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    border-radius: 6px;
    border: 2px solid var(--bg-light);
}

.results-container::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-dark) 100%);
}

/* ========== Link Styling ========== */
a {
    color: var(--accent-dark);
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

/* ========== Interactive Elements ========== */
.table-hover tbody tr:hover {
    background-color: var(--accent-light);
    transition: background-color 0.2s ease;
}

/* ========== Mobile Responsiveness ========== */
@media (max-width: 768px) {
    .search-section {
        padding: 1.5rem;
        margin-bottom: 1.5rem;
    }
    
    #ResultsSection {
        padding: 1.5rem;
    }
    
    .btn-accent, .btn-primary-custom {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
    
    .notation-container,
    .piano-container {
        padding: 1rem;
    }
}

/* ========== Animation Classes ========== */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

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

.slide-in {
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from { transform: translateX(-20px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}