:root {
    --bg-main: #fcfaf8;
    --bg-sidebar: #ffffff;
    --text-main: #27272a;
    --text-muted: #71717a;
    --primary: #d97706;
    --primary-hover: #b45309;
    --accent: #f59e0b;
    --border-color: #f1f1f4;
    --sidebar-width: 280px;
    --radius: 8px;
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --transition-snappy: 0.1s cubic-bezier(0.2, 0, 0, 1);
}

body {
    display: flex;
    flex-wrap: nowrap;
    height: 100vh;
    max-height: 100vh;
    overflow-x: hidden;
    overflow-y: hidden;
    background-color: var(--bg-main);
    color: var(--text-main);
    font-family: 'Geist', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.5;
}

/* Sidebar Styling */
.sidebar {
    width: var(--sidebar-width);
    height: 100vh;
    background-color: var(--bg-sidebar) !important;
    border-right: 1px solid var(--border-color) !important;
    padding: 1.5rem 0.5rem 0.5rem 0.5rem !important;
    flex-shrink: 0;
    z-index: 100;
}

.sidebar a.logo {
    font-weight: 800;
    letter-spacing: -0.025em;
    color: var(--primary) !important;
    text-transform: none;
    font-size: 1.25rem;
    margin-bottom: 2rem !important;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-snappy);
}


.sidebar-section-label {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
    padding: 0 0.75rem;
}

.sidebar hr {
    background-color: var(--border-color);
    height: 1px;
    opacity: 1;
    margin: 1.5rem 0;
}

.sidebar .nav-link {
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--text-muted) !important;
    border-radius: var(--radius) !important;
    padding: 0.625rem 0.75rem;
    margin-bottom: 0.25rem;
    transition: all var(--transition-snappy);
    border: none !important;
}

.sidebar .nav-link:hover {
    background-color: #fffbeb;
    color: var(--text-main) !important;
    transform: translateX(4px);
    box-shadow: none;
}

.sidebar .nav-link.active {
    background-color: #fff7ed !important;
    color: var(--primary) !important;
    box-shadow: none;
    font-weight: 600;
    border-left: 3px solid var(--primary) !important;
    border-top-left-radius: 0 !important;
    border-bottom-left-radius: 0 !important;
}

.sidebar-footer {
    margin-top: auto;
}

.logout-btn {
    background: none;
    border: none;
    padding: 0.625rem 0.75rem;
    color: var(--text-muted) !important;
    text-align: left;
    width: 100%;
    font-weight: 500;
    font-size: 0.875rem;
    border-radius: var(--radius) !important;
    transition: all var(--transition-snappy);
}

.logout-btn:hover {
    background-color: #fff1f2;
    color: var(--accent) !important;
    transform: translateX(4px);
}

/* Main Content area */
main {
    flex-grow: 1;
    height: 100vh;
    overflow-y: auto;
    padding: 2.5rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    letter-spacing: -0.025em;
    color: var(--text-main);
    margin-bottom: 1.25rem;
    -webkit-text-stroke: 0;
    text-transform: none;
}

h1 { font-size: 2.25rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }

/* Modern Components */
.card {
    background-color: #ffffff;
    border: 1px solid var(--border-color) !important;
    border-radius: var(--radius) !important;
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
    transition: transform var(--transition-snappy), box-shadow var(--transition-snappy) !important;
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-body {
    padding: 1.5rem;
}

.btn {
    border-radius: var(--radius) !important;
    font-weight: 600;
    padding: 0.5rem 1rem;
    transition: all var(--transition-snappy) !important;
    border: 1px solid transparent !important;
    box-shadow: var(--shadow);
    text-transform: none;
    margin-bottom: 0;
}

.btn-primary {
    background-color: var(--primary) !important;
    color: #ffffff !important;
    border-radius: var(--radius) !important;
}

.input-group .btn {
    margin-bottom: 0;
    box-shadow: none;
    z-index: 2;
    border-radius: 0 !important;
}

.input-group .btn:last-child {
    border-top-right-radius: var(--radius) !important;
    border-bottom-right-radius: var(--radius) !important;
}

.input-group .form-control {
    border-top-right-radius: 0 !important;
    border-bottom-right-radius: 0 !important;
}

.input-group .form-control:focus {
    z-index: 3;
}

.btn-primary:hover {
    background-color: var(--primary-hover) !important;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: #ffffff !important;
    color: var(--text-main) !important;
    border-color: var(--border-color) !important;
}

.btn-secondary:hover {
    background-color: #fffbeb !important;
    border-color: #fde68a !important;
}

.btn-outline-primary {
    background-color: transparent !important;
    color: var(--primary) !important;
    border-color: var(--primary) !important;
    box-shadow: none;
}

.btn-outline-primary:hover {
    background-color: #fffbeb !important;
    transform: translateY(-1px);
}

.btn-success {
    background-color: #10b981 !important;
    color: #ffffff !important;
}

/* List Groups */
.list-group {
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.list-group-item {
    border: none !important;
    border-bottom: 1px solid var(--border-color) !important;
    padding: 1rem 1.25rem;
    font-weight: 500;
}

/* Table styling */
.table th {
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.7rem;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    border-top: none;
    padding: 1rem 1.25rem !important;
    border-bottom: 1px solid var(--border-color) !important;
}

.table td {
    padding: 1rem 1.25rem !important;
    vertical-align: middle !important;
}

.table:not(.table-borderless):not(.table-bordered):not(.table-sm) td {
    height: 64px;
}

.table.table-borderless td, .table.table-bordered td, .table.table-sm td {
    height: auto;
    padding: 0.5rem 1.25rem !important;
}

.table-responsive {
    overflow-x: auto;
}

.list-group-item:last-child {
    border-bottom: none !important;
}

.list-group-item-action:hover {
    background-color: #fffbeb;
    color: var(--primary) !important;
}

/* Form Styling */
.form-control {
    border: 1px solid var(--border-color) !important;
    border-radius: var(--radius) !important;
    padding: 0.625rem 0.75rem;
    box-shadow: none;
    transition: border-color var(--transition-snappy), box-shadow var(--transition-snappy);
}

.form-control:focus {
    border-color: var(--primary) !important;
    box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.1) !important;
    background-color: #ffffff;
}

label {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-main);
    margin-bottom: 0.5rem;
    text-transform: none;
}

/* Piece Content */
.piece-card {
    border: none !important;
    border-top: 4px solid var(--primary) !important;
    cursor: pointer;
    overflow: hidden;
}

.piece-card:hover {
    background-color: #ffffff;
    border-top-color: var(--primary-hover) !important;
    transform: translateY(-8px);
    box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1) !important;
}

.bg-primary-light {
    background-color: #fff7ed;
}

.text-primary {
    color: var(--primary) !important;
}

.italic {
    font-style: italic;
}

.part-content {
    background-color: #ffffff !important;
    border: 1px solid var(--border-color) !important;
    border-radius: var(--radius) !important;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-optical-sizing: auto;
    font-size: 1rem;
    padding: 2rem !important;
    box-shadow: var(--shadow);
}

.alert {
    border-radius: var(--radius) !important;
    border: 1px solid transparent !important;
    box-shadow: var(--shadow);
    padding: 1rem 1.25rem;
    font-weight: 500;
}

.alert-danger {
    background-color: #fef2f2 !important;
    color: #991b1b !important;
    border-color: #fee2e2 !important;
}

.text-muted {
    color: var(--text-muted) !important;
    font-weight: 400;
}

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

.invalid-feedback, .help-block {
    color: var(--primary) !important;
    font-size: 0.875rem;
    font-weight: 500;
    margin-top: 0.25rem;
}

.small {
    font-size: 0.75rem;
}

.collection-badge {
    background-color: transparent !important;
    color: var(--primary) !important;
    border: 1px solid var(--primary) !important;
    transition: all var(--transition-snappy);
}

.collection-badge:hover, .collection-badge.active {
    background-color: var(--primary) !important;
    color: #ffffff !important;
    border-color: var(--primary) !important;
}

.dropdown-item.active {
    background-color: var(--primary) !important;
    color: #ffffff !important;
}

.dropdown-item:hover:not(.active) {
    background-color: #fffbeb !important;
    color: var(--primary) !important;
}

.sidebar-footer .dropdown-toggle::after {
    display: none;
}

.sidebar-footer .dropdown-toggle:hover, .sidebar-footer .nav-link:hover, .sidebar-footer .logout-btn:hover {
    background-color: #fffbeb;
    color: var(--text-main) !important;
    transform: translateX(4px);
}

.sidebar-footer .logout-btn:hover {
    background-color: #fff1f2;
    color: var(--accent) !important;
}

.sidebar-footer .dropdown-menu {
    border: 1px solid var(--border-color) !important;
    border-radius: var(--radius) !important;
    margin-bottom: 0.5rem !important;
}

/* Dog-ear About Link */
.about-dog-ear {
    position: fixed;
    top: 0;
    right: 0;
    width: 60px;
    height: 60px;
    background-color: var(--primary);
    clip-path: polygon(0 0, 100% 0, 100% 100%);
    z-index: 1000;
    transition: all 0.2s ease;
    display: flex;
    justify-content: flex-end;
    align-items: flex-start;
    padding: 8px;
    color: white !important;
    text-decoration: none;
}

.about-dog-ear:hover {
    width: 70px;
    height: 70px;
    background-color: var(--primary-hover);
}

.about-dog-ear i {
    font-size: 1.25rem;
    line-height: 1;
}

.admin-menu-bar {
    background-color: var(--bg-sidebar);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.admin-tabs .nav-link {
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.875rem;
    padding: 1rem 1.25rem;
    border: none;
    border-bottom: 2px solid transparent;
    transition: all var(--transition-snappy);
    border-radius: 0 !important;
}

.admin-tabs .nav-link:hover {
    color: var(--primary);
    background-color: #fffbeb;
}

.admin-tabs .nav-link.active {
    color: var(--primary);
    border-bottom: 2px solid var(--primary);
}

/* Agenda System */
.project-agenda .table thead th {
    vertical-align: bottom;
    border-bottom: 2px solid var(--border-color) !important;
}

.project-agenda .btn-group .btn {
    padding: 0.35rem 0.6rem;
    font-size: 0.85rem;
    box-shadow: none;
    border: 1px solid var(--border-color) !important;
}

.project-agenda .btn-group .btn:hover {
    transform: none;
}

.project-agenda .breadcrumb {
    margin-bottom: 0;
    font-size: 0.875rem;
}

.project-agenda .breadcrumb-item a {
    color: var(--text-muted);
    text-decoration: none;
}

.project-agenda .breadcrumb-item a:hover {
    color: var(--primary);
}

.agenda-items-scrollable {
    max-height: 250px;
    overflow-y: auto;
    padding-right: 5px;
}

.agenda-items-scrollable::-webkit-scrollbar {
    width: 4px;
}

.agenda-items-scrollable::-webkit-scrollbar-track {
    background: transparent;
}

.agenda-items-scrollable::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 10px;
}