/* OpenTrackr styles */
@import url('https://fonts.googleapis.com/css2?family=Permanent+Marker&display=swap');

:root {
    /* Light theme */
    --bg-primary: #ffffff;
    --bg-secondary: #f0f4f8;
    --bg-tertiary: #e2e8f0;
    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --text-muted: #718096;
    --border-color: #cbd5e0;
    --shadow: rgba(0, 0, 0, 0.12);
    --accent: #0284c7;
    --accent-bright: #0ea5e9;
    --accent-hover: #0369a1;
    --success: #22c55e;
    --danger: #ef4444;
    --warning: #f59e0b;
    --overdue: #dc2626;
    --card-bg: #ffffff;

    /* Open Polytechnic-inspired page gradient */
    --poly-sky: #dceef2;
    --poly-blue: #1a5a9e;
    --poly-teal: #1a7a6e;
    --poly-green: #2d8a4e;
    --poly-lime: #5a9e3a;
    --poly-orange: #d9782a;
    --poly-amber: #b8651a;
    --poly-brown: #6b4423;
    --poly-earth: #4a3018;
}

[data-theme="dark"] {
    /* Dark theme */
    --bg-primary: #1e293b;
    --bg-secondary: #0f172a;
    --bg-tertiary: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border-color: #475569;
    --shadow: rgba(0, 0, 0, 0.4);
    --accent: #38bdf8;
    --accent-bright: #7dd3fc;
    --accent-hover: #0ea5e9;
    --success: #4ade80;
    --danger: #f87171;
    --warning: #fbbf24;
    --overdue: #fca5a5;
    --card-bg: #1e293b;
}

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

.skip-link {
    position: absolute;
    top: -3rem;
    left: 1rem;
    z-index: 10000;
    padding: 0.5rem 1rem;
    background-color: var(--accent);
    color: #fff;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
}

.skip-link:focus {
    top: 1rem;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
    min-height: 100vh;
}

body.home-page,
body.tracker-page,
body.register-page,
body.settings-page,
body.about-page {
    background-color: var(--poly-blue);
    background-image: linear-gradient(
        180deg,
        var(--poly-sky) 0%,
        #7eb8d4 6%,
        var(--poly-blue) 16%,
        var(--poly-teal) 30%,
        var(--poly-green) 44%,
        var(--poly-lime) 54%,
        var(--poly-orange) 68%,
        var(--poly-amber) 78%,
        var(--poly-brown) 90%,
        var(--poly-earth) 100%
    );
    background-repeat: no-repeat;
    background-size: 100% 100%;
}

[data-theme="dark"] body.home-page,
[data-theme="dark"] body.tracker-page,
[data-theme="dark"] body.register-page,
[data-theme="dark"] body.settings-page,
[data-theme="dark"] body.about-page {
    background-color: #0f172a;
    background-image: linear-gradient(
        180deg,
        #1e293b 0%,
        #1e3a5f 12%,
        #14532d 28%,
        #166534 42%,
        #3f6212 52%,
        #9a3412 68%,
        #7c2d12 78%,
        #451a03 90%,
        #292524 100%
    );
}

body.home-page .site-header,
body.tracker-page .site-header,
body.register-page .site-header,
body.settings-page .site-header,
body.about-page .site-header,
body.home-page .site-footer,
body.tracker-page .site-footer,
body.register-page .site-footer,
body.settings-page .site-footer,
body.about-page .site-footer {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
}

[data-theme="dark"] body.home-page .site-header,
[data-theme="dark"] body.tracker-page .site-header,
[data-theme="dark"] body.register-page .site-header,
[data-theme="dark"] body.settings-page .site-header,
[data-theme="dark"] body.about-page .site-header,
[data-theme="dark"] body.home-page .site-footer,
[data-theme="dark"] body.tracker-page .site-footer,
[data-theme="dark"] body.register-page .site-footer,
[data-theme="dark"] body.settings-page .site-footer,
[data-theme="dark"] body.about-page .site-footer {
    background: rgba(15, 23, 42, 0.88);
}

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

.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 4px var(--shadow);
}

.app-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.header-controls {
    display: flex;
    gap: 0.5rem;
}

.btn-icon {
    background: none;
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    cursor: pointer;
    border-radius: 6px;
    font-size: 1.2rem;
    transition: all 0.2s ease;
    background-color: var(--bg-secondary);
}

.btn-icon:hover {
    background-color: var(--bg-tertiary);
    transform: scale(1.05);
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 2rem;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

.add-task-section {
    margin-bottom: 2rem;
    text-align: center;
}

.btn-primary {
    background-color: var(--accent);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

a.btn-primary {
    display: inline-block;
    text-decoration: none;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px var(--shadow);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-secondary:hover {
    background-color: var(--bg-secondary);
}

/* Kanban Board */
.kanban-board {
    margin-top: 2rem;
}

.kanban-hint {
    margin: 0 0 1rem;
    font-size: 0.9rem;
    color: var(--text-muted);
    text-align: center;
}

.kanban-columns {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    align-items: start;
}

.kanban-column {
    background-color: var(--bg-primary);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 2px 8px var(--shadow);
    min-height: 400px;
    display: flex;
    flex-direction: column;
    /* Kanban column background */
    position: relative;
    overflow: hidden;
    background-image: url('../images/kanban-column.jpg');
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
}
.kanban-column::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(rgba(0,0,0,0.28), rgba(0,0,0,0.18));
    pointer-events: none;
    z-index: 0;
}
.kanban-column > * {
    position: relative;
    z-index: 1;
}

.column-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--border-color);
}

.column-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.column-count {
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.875rem;
}

        .task-tag {
            display: inline-block;
            padding: 4px 8px;
            font-size: 0.75rem;
            border-radius: 999px;
            background: rgba(14, 165, 233, 0.15);
            color: var(--accent-bright);
            font-weight: 600;
            margin-right: 0.5rem;
        }

.column-actions {
    display: flex;
    gap: 0.25rem;
}

.btn-small {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
    color: var(--text-muted);
    transition: color 0.2s ease;
}

.btn-small:hover {
    color: var(--text-primary);
}

.tasks-container {
    flex: 1;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.kanban-add-form {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid rgba(255, 255, 255, 0.25);
}

.kanban-add-input {
    flex: 1;
    padding: 0.55rem 0.65rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-size: 0.9rem;
}

.kanban-add-input:focus {
    outline: none;
    border-color: var(--accent);
}

.kanban-add-submit {
    padding: 0.55rem 0.85rem;
    border: none;
    border-radius: 8px;
    background-color: var(--accent);
    color: #fff;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
}

.kanban-add-submit:hover {
    background-color: var(--accent-hover);
}

.task-source-tag,
.task-priority-tag {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    margin-right: 0.35rem;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 600;
}

.task-source-tag {
    background: rgba(14, 165, 233, 0.15);
    color: var(--accent-bright);
}

.task-priority-high {
    background: color-mix(in srgb, var(--danger) 18%, transparent);
    color: #b91c1c;
}

.task-priority-medium {
    background: color-mix(in srgb, var(--warning) 18%, transparent);
    color: #b45309;
}

.task-priority-low {
    background: color-mix(in srgb, var(--accent) 15%, transparent);
    color: #0369a1;
}

/* Task Card */
.task-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    cursor: move;
    transition: all 0.2s ease;
    position: relative;
}

.task-card:hover {
    box-shadow: 0 4px 12px var(--shadow);
    transform: translateY(-2px);
}

.task-card.overdue {
    border-left: 4px solid var(--overdue);
    background-color: var(--bg-secondary);
}

.task-card.completed {
    opacity: 0.7;
    text-decoration: line-through;
}

.task-card.dragging {
    opacity: 0.5;
    transform: rotate(2deg);
}

.task-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.5rem;
}

.task-title {
    font-weight: 600;
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.task-actions {
    display: flex;
    gap: 0.5rem;
}

.task-description {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    white-space: pre-wrap;
}

.task-meta {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.task-due-date {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.task-due-date.overdue {
    color: var(--overdue);
    font-weight: 600;
}

.task-notification {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    user-select: none;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

/* List View */
.task-list-view {
    margin-top: 2rem;
}

.task-list-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.list-task-item {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    display: grid;
    grid-template-columns: auto 1fr auto auto;
    gap: 1rem;
    align-items: center;
    transition: all 0.2s ease;
}

.list-task-item:hover {
    box-shadow: 0 2px 8px var(--shadow);
}

.list-task-item.overdue {
    border-left: 4px solid var(--overdue);
}

.list-task-item.completed {
    opacity: 0.7;
}

.list-task-item input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.list-task-content {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.list-task-category {
    background-color: var(--bg-tertiary);
    padding: 0.25rem 0.75rem;
    border-radius: 6px;
    font-size: 0.875rem;
    width: fit-content;
}

.hidden {
    display: none !important;
}

/* Focus styles for keyboard users */
:focus {
    outline: 3px solid color-mix(in srgb, var(--accent) 35%, transparent);
    outline-offset: 3px;
}

/* Snackbar / undo */
.snackbar {
    position: fixed;
    right: 1rem;
    bottom: 1rem;
    display: inline-flex;
    gap: 0.75rem;
    align-items: center;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    padding: 0.6rem 1rem;
    border-radius: 10px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.25);
    z-index: 2000;
}

.snackbar .snackbar-message {
    font-size: 0.95rem;
}

/* Small polish for task-cards */
.task-card {
    transition: transform 160ms cubic-bezier(.2,.8,.2,1), box-shadow 160ms ease;
}
.task-card:hover {
    transform: translateY(-6px);
}

/* Make touch targets larger on small screens */
@media (max-width: 600px) {
    .btn-primary, .btn-secondary, .btn-icon { padding: 0.9rem; }
    .btn-icon { width:48px; height:48px; }
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
}

.modal-content {
    background-color: var(--bg-primary);
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 10px 40px var(--shadow);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    font-size: 1.5rem;
    color: var(--text-primary);
}

.close-btn {
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: var(--text-muted);
    line-height: 1;
    transition: color 0.2s ease;
}

.close-btn:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: 1.5rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
}

.required {
    color: var(--danger);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    font-family: inherit;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    transition: border-color 0.2s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent);
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 2rem;
}

.setting-group {
    margin-bottom: 2rem;
}

.setting-group h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

#categoryList {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.category-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem;
    background-color: var(--bg-secondary);
    border-radius: 6px;
}

.category-item input {
    flex: 1;
    margin-right: 1rem;
}

/* Responsive */
@media (max-width: 768px) {
    .header {
        padding: 1rem;
        flex-wrap: wrap;
        gap: 1rem;
    }

    .main-content {
        padding: 1rem;
    }

    .kanban-columns {
        grid-template-columns: 1fr;
    }

    .list-task-item {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }

    .modal-content {
        width: 95%;
        margin: 1rem;
    }
}

/* Floating FAB styles */
.fab-container { position: fixed; right: 1rem; bottom: 1.25rem; z-index: 1500; display: none; }
.btn-fab { width: 56px; height: 56px; border-radius: 50%; font-size: 1.25rem; display:inline-flex; align-items:center; justify-content:center; box-shadow: 0 12px 30px rgba(2,6,23,0.6); }

@media (max-width: 900px) {
    .add-task-section { display: none; }
    .fab-container { display: block; }
}

/* Snackbar animations */
.snackbar { transform: translateY(20px); opacity: 0; transition: transform 220ms ease, opacity 220ms ease; }
.snackbar:not(.hidden) { transform: translateY(0); opacity: 1; }

/* Drag and Drop */
.kanban-column.drag-over {
    background-color: var(--bg-tertiary);
    border: 2px dashed var(--accent);
}

.empty-state {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
    font-style: italic;
}

/* Site layout */
.page-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
    z-index: 1;
}

.site-header {
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 2px 4px var(--shadow);
}

.site-header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.site-title {
    font-family: 'Permanent Marker', cursive;
    font-size: 1.85rem;
    font-weight: 400;
    line-height: 1.2;
    width: 100%;
    text-align: center;
}

.site-title a {
    color: var(--accent-bright);
    text-decoration: none;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.18);
    transition: color 0.2s ease;
}

.site-title a:hover,
.site-title a:focus {
    color: var(--accent);
}

[data-theme="dark"] .site-title a {
    color: #bae6fd;
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.45);
}

[data-theme="dark"] .site-title a:hover,
[data-theme="dark"] .site-title a:focus {
    color: var(--accent-bright);
}

.site-nav {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

.site-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-weight: 500;
    transition: background-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
    display: inline-block;
}

.site-nav a.nav-link--home:hover,
.site-nav a.nav-link--home.active {
    background-color: #1a5a9e;
    color: #fff;
}

.site-nav a.nav-link--tracker:hover,
.site-nav a.nav-link--tracker.active {
    background-color: #2d8a4e;
    color: #fff;
}

.site-nav a.nav-link--register:hover,
.site-nav a.nav-link--register.active {
    background-color: #d9782a;
    color: #fff;
}

.site-nav a.nav-link--settings:hover,
.site-nav a.nav-link--settings.active {
    background-color: #6b4423;
    color: #fff;
}

.site-nav a.nav-link--about:hover,
.site-nav a.nav-link--about.active {
    background-color: #6b4c9a;
    color: #fff;
}

[data-theme="dark"] .site-nav a.nav-link--home:hover,
[data-theme="dark"] .site-nav a.nav-link--home.active {
    background-color: #2563eb;
}

[data-theme="dark"] .site-nav a.nav-link--tracker:hover,
[data-theme="dark"] .site-nav a.nav-link--tracker.active {
    background-color: #16a34a;
}

[data-theme="dark"] .site-nav a.nav-link--register:hover,
[data-theme="dark"] .site-nav a.nav-link--register.active {
    background-color: #ea580c;
}

[data-theme="dark"] .site-nav a.nav-link--settings:hover,
[data-theme="dark"] .site-nav a.nav-link--settings.active {
    background-color: #92400e;
}

[data-theme="dark"] .site-nav a.nav-link--about:hover,
[data-theme="dark"] .site-nav a.nav-link--about.active {
    background-color: #7c3aed;
}

.about-feature-list {
    list-style-type: disc;
}

@keyframes nav-wiggle {
    0% { transform: rotate(0deg) scale(1); }
    15% { transform: rotate(-6deg) scale(1.04); }
    30% { transform: rotate(6deg) scale(1.04); }
    45% { transform: rotate(-5deg) scale(1.02); }
    60% { transform: rotate(5deg) scale(1.02); }
    75% { transform: rotate(-2deg) scale(1); }
    100% { transform: rotate(0deg) scale(1); }
}

.site-nav a.nav-wiggle {
    animation: nav-wiggle 0.55s ease;
}

@media (prefers-reduced-motion: reduce) {
    .site-nav a.nav-wiggle {
        animation: none;
    }
}

.site-theme-toggle {
    font-size: 1.1rem;
    padding: 0.45rem 0.75rem;
}

.site-content {
    flex: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    width: 100%;
}

.site-footer {
    background-color: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    text-align: center;
    padding: 1rem 2rem;
    color: var(--text-secondary);
}

.content-section {
    background-color: var(--bg-primary);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 2px 8px var(--shadow);
}

.content-section h2 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.intro-text {
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
}

.content-section p:not(.intro-text) {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.content-section a.btn-primary {
    margin-top: 0.5rem;
}

.hero-section {
    text-align: center;
}

.section-heading-with-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.section-heading-with-logo--inline {
    flex-direction: row;
    align-items: center;
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 1rem 1.25rem;
    text-align: left;
}

.section-heading-with-logo h2 {
    margin-bottom: 0;
}

.full-logo {
    display: block;
    width: auto;
    max-width: min(280px, 100%);
    height: auto;
    max-height: 88px;
    object-fit: contain;
}

.section-heading-with-logo--inline .full-logo {
    max-width: 140px;
    max-height: 72px;
}

.image-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.gallery-intro {
    margin-bottom: 1.25rem;
}

.gallery-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 0;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    background-color: var(--bg-secondary);
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
    font-family: inherit;
    color: inherit;
    overflow: hidden;
}

.gallery-card:hover,
.gallery-card:focus-visible {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px var(--shadow);
    border-color: var(--accent);
    outline: none;
}

.gallery-card .content-image {
    max-width: none;
    width: 100%;
    border: none;
    border-radius: 0;
    box-shadow: none;
}

.gallery-caption {
    display: block;
    margin-top: 0.75rem;
    padding: 0 0.75rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

.gallery-cta {
    display: block;
    margin: 0.35rem 0 1rem;
    font-size: 0.8rem;
    color: var(--accent);
    font-weight: 500;
}

.gallery-item {
    text-align: center;
}

.content-image {
    width: 100%;
    max-width: 280px;
    height: 180px;
    object-fit: cover;
    border-radius: 8px;
    border: 2px solid var(--border-color);
    box-shadow: 0 2px 6px var(--shadow);
}

.gallery-item figcaption {
    margin-top: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.content-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

.content-table th,
.content-table td {
    border: 1px solid var(--border-color);
    padding: 0.75rem 1rem;
    text-align: left;
}

.content-table thead th {
    background-color: var(--accent);
    color: #fff;
    font-weight: 600;
}

.content-table tbody tr:nth-child(even) {
    background-color: var(--bg-secondary);
}

.content-table tbody tr:hover {
    background-color: var(--bg-tertiary);
}

.content-list {
    margin: 1rem 0 1.5rem 1.5rem;
    color: var(--text-secondary);
    list-style-type: lower-roman;
}

.content-list li {
    margin-bottom: 0.5rem;
}

.video-wrapper {
    position: relative;
    width: 100%;
    max-width: 800px;
    margin: 1rem auto 0;
    aspect-ratio: 16 / 9;
}

.video-wrapper iframe {
    width: 100%;
    height: 100%;
    border: none;
    border-radius: 8px;
    box-shadow: 0 4px 12px var(--shadow);
}

.register-form {
    max-width: 500px;
}

#formMessage {
    margin-top: 1rem;
    font-weight: 500;
}

#formMessage.error {
    color: #e53e3e;
}

#formMessage.success {
    color: #38a169;
}

/* Tracker page toolbar */
.tracker-toolbar {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 1.25rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    background: rgba(255, 255, 255, 0.82);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.5);
    box-shadow: 0 4px 16px var(--shadow);
    backdrop-filter: blur(8px);
}

[data-theme="dark"] .tracker-toolbar {
    background: rgba(15, 23, 42, 0.85);
    border-color: rgba(71, 85, 105, 0.6);
}

.tracker-heading {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-bright);
    letter-spacing: 0.02em;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] .tracker-heading {
    color: #bae6fd;
    text-shadow: 0 2px 6px rgba(0, 0, 0, 0.5);
}

.view-switcher {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    margin-right: 0.25rem;
}

.view-switch-btn {
    border: 1px solid var(--border-color);
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
    padding: 0.45rem 0.75rem;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.view-switch-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.view-switch-btn.active {
    background-color: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

.view-switch-btn[data-view="calendar"].active {
    background-color: #1a5a9e;
    border-color: #1a5a9e;
}

.view-switch-btn[data-view="kanban"].active {
    background-color: #2d8a4e;
    border-color: #2d8a4e;
}

.view-switch-btn[data-view="list"].active {
    background-color: #d9782a;
    border-color: #d9782a;
}

.calendar-view {
    margin-top: 2rem;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 2px 8px var(--shadow);
    position: relative;
    overflow: hidden;
    background-color: var(--bg-primary);
}

.saved-daily-plans-section {
    margin-top: 1.5rem;
    padding: 1.25rem;
    border-radius: 12px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 8px var(--shadow);
}

.saved-plans-heading {
    text-align: center;
    margin-bottom: 0.35rem;
    color: var(--text-primary);
}

.saved-plans-hint {
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.calendar-view::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.88);
    border-radius: 12px;
    pointer-events: none;
    z-index: 0;
}

[data-theme="dark"] .calendar-view::before {
    background: rgba(26, 32, 44, 0.88);
}

.calendar-view > * {
    position: relative;
    z-index: 1;
}

#fullCalendar {
    min-height: 500px;
}

.fc .fc-button-primary {
    background-color: var(--accent);
    border-color: var(--accent);
}

.fc .fc-button-primary:hover {
    background-color: var(--accent-hover);
    border-color: var(--accent-hover);
}

@media (max-width: 768px) {
    .site-header-inner {
        padding: 1rem;
    }

    .site-nav {
        width: 100%;
        justify-content: center;
    }

    .site-content {
        padding: 1rem;
    }

    .content-section {
        padding: 1.25rem;
    }

    .content-table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }

    .register-form {
        max-width: 100%;
    }

    .form-group input,
    .form-group textarea,
    .form-group select {
        width: 100%;
    }

    .tracker-toolbar {
        padding: 1rem;
    }

    .main-content {
        padding: 1rem;
    }

    .task-planner-table-wrap {
        overflow-x: auto;
    }
}

/* Planning workspace */
.planning-workspace {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 2px solid var(--border-color);
}

.planner-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.planner-panel {
    background-color: var(--bg-primary);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 2px 8px var(--shadow);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.panel-heading-with-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.65rem;
    margin-bottom: 0.35rem;
    text-align: center;
}

.panel-heading-with-logo h3 {
    margin-bottom: 0;
}

.panel-logo {
    display: block;
    width: auto;
    max-width: 180px;
    max-height: 72px;
    object-fit: contain;
}

.planner-panel h3 {
    margin-bottom: 0.35rem;
    color: var(--text-primary);
}

.planner-panel-wide {
    grid-column: 1 / -1;
}

.planner-hint {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.planner-hint--center {
    text-align: center;
}

.planner-panel-actions {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 1rem;
}

.planner-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 0.5rem;
}

.quick-todo-form {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.quick-todo-form input {
    flex: 1;
    padding: 0.65rem 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

.quick-todo-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.quick-todo-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 0.75rem;
    background-color: var(--bg-secondary);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.quick-todo-item.completed span {
    text-decoration: line-through;
    opacity: 0.65;
}

.quick-todo-empty {
    color: var(--text-muted);
    font-style: italic;
    padding: 0.5rem 0;
}

.planner-fieldset {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.75rem 1rem 1rem;
    margin-bottom: 1rem;
}

.planner-fieldset legend {
    padding: 0 0.35rem;
    font-weight: 500;
    color: var(--text-primary);
}

.planner-fieldset input {
    width: 100%;
    margin-bottom: 0.5rem;
    padding: 0.6rem 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.95rem;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

.planner-fieldset input:last-child {
    margin-bottom: 0;
}

.daily-planner-form .form-group input,
.daily-planner-form .form-group textarea {
    width: 100%;
}

.daily-planner-actions {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.daily-planner-action-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

#saveDailyPlanner.btn-primary {
    opacity: 0.72;
}

#saveDailyPlanner.btn-primary.btn-ready,
#saveDailyPlanner.btn-primary:not([aria-disabled="true"]) {
    opacity: 1;
}

#saveDailyPlanner.btn-primary[aria-disabled="true"] {
    cursor: pointer;
}

.planner-form-status {
    min-height: 1.25rem;
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.planner-form-status.success {
    color: var(--success);
}

.planner-form-status.error {
    color: var(--danger);
}

.daily-planner-notes-board {
    position: relative;
    min-height: 180px;
    padding: 0.75rem;
    border-radius: 10px;
    border: 1px dashed var(--border-color);
    background: rgba(255, 255, 255, 0.35);
}

[data-theme="dark"] .daily-planner-notes-board {
    background: rgba(15, 23, 42, 0.35);
}

.daily-planner-notes-empty {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 1rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    pointer-events: none;
}

.daily-planner-note {
    position: absolute;
    width: min(190px, 42vw);
    background: linear-gradient(160deg, #fff9c4 0%, #ffe082 100%);
    border: 1px solid #f6d365;
    border-radius: 8px;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
    color: #3f3f3f;
    z-index: 2;
    touch-action: none;
}

[data-theme="dark"] .daily-planner-note {
    background: linear-gradient(160deg, #854d0e 0%, #713f12 100%);
    border-color: #a16207;
    color: #fef3c7;
}

.daily-planner-note.dragging {
    cursor: grabbing;
    z-index: 5;
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.25);
}

.daily-planner-note-drag {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.35rem;
    padding: 0.45rem 0.5rem 0.25rem;
    cursor: grab;
    font-size: 0.75rem;
}

.daily-planner-note-actions {
    display: flex;
    gap: 0.15rem;
}

.daily-planner-note-open {
    width: 100%;
    border: none;
    background: transparent;
    text-align: left;
    padding: 0.25rem 0.55rem 0.55rem;
    cursor: pointer;
    color: inherit;
    font: inherit;
}

.daily-planner-note-focus {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    line-height: 1.35;
    margin-bottom: 0.2rem;
}

.daily-planner-note-line {
    display: block;
    font-size: 0.75rem;
    opacity: 0.85;
    line-height: 1.3;
}

.daily-planner-note-open:hover,
.daily-planner-note-open:focus {
    background: rgba(255, 255, 255, 0.25);
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Task planner — Notion / Monday.com spreadsheet style */
.task-planner-panel {
    padding-bottom: 1rem;
}

.task-planner-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 0.75rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.task-planner-toolbar-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

.task-planner-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin: 0;
}

.task-planner-add-btn {
    white-space: nowrap;
}

.task-planner-table-wrap {
    overflow-x: auto;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    background-color: var(--bg-primary);
}

.task-planner-table-wrap--empty .task-planner-table {
    display: none;
}

.task-planner-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.task-planner-table thead th {
    position: sticky;
    top: 0;
    z-index: 1;
    padding: 0.65rem 0.75rem;
    text-align: left;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    color: var(--text-muted);
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.task-planner-table tbody td {
    padding: 0.35rem 0.5rem;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

.task-planner-table tbody tr:last-child td {
    border-bottom: none;
}

.task-planner-table tbody tr:hover {
    background-color: color-mix(in srgb, var(--accent) 6%, var(--bg-primary));
}

.task-planner-table .planner-cell {
    width: 100%;
    min-width: 90px;
    padding: 0.45rem 0.55rem;
    border: 1px solid transparent;
    border-radius: 6px;
    font-size: 0.9rem;
    background-color: transparent;
    color: var(--text-primary);
    transition: border-color 0.15s, background-color 0.15s;
}

.task-planner-table .planner-cell:hover {
    background-color: var(--bg-secondary);
}

.task-planner-table .planner-cell:focus {
    outline: none;
    border-color: var(--accent);
    background-color: var(--bg-secondary);
}

.task-planner-table .planner-cell-task {
    min-width: 160px;
    font-weight: 500;
}

.task-planner-table .planner-cell-date {
    min-width: 130px;
}

.task-planner-table .planner-cell-priority,
.task-planner-table .planner-cell-status {
    min-width: 120px;
    font-weight: 600;
    cursor: pointer;
}

.task-planner-table .planner-cell-priority.priority-high {
    color: #b91c1c;
    background-color: color-mix(in srgb, var(--danger) 12%, transparent);
}

.task-planner-table .planner-cell-priority.priority-medium {
    color: #b45309;
    background-color: color-mix(in srgb, var(--warning) 14%, transparent);
}

.task-planner-table .planner-cell-priority.priority-low {
    color: #0369a1;
    background-color: color-mix(in srgb, var(--accent) 12%, transparent);
}

.task-planner-table .planner-cell-status.status-not-started {
    color: var(--text-secondary);
    background-color: color-mix(in srgb, var(--text-muted) 12%, transparent);
}

.task-planner-table .planner-cell-status.status-in-progress {
    color: #1d4ed8;
    background-color: color-mix(in srgb, var(--accent) 14%, transparent);
}

.task-planner-table .planner-cell-status.status-done {
    color: #15803d;
    background-color: color-mix(in srgb, var(--success) 14%, transparent);
}

.task-planner-actions-cell {
    width: 44px;
    text-align: center;
}

.task-planner-board-cell {
    min-width: 110px;
    text-align: center;
    white-space: nowrap;
}

.send-to-board {
    padding: 0.35rem 0.55rem;
    border: 1px solid var(--accent);
    border-radius: 6px;
    background: color-mix(in srgb, var(--accent) 10%, transparent);
    color: var(--accent);
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
}

.send-to-board:hover:not(:disabled),
.send-to-board:focus:not(:disabled) {
    background: var(--accent);
    color: #fff;
}

.send-to-board:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.board-linked-badge,
.quick-todo-board-badge {
    display: inline-block;
    padding: 0.2rem 0.55rem;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    background: color-mix(in srgb, var(--success) 18%, transparent);
    color: #15803d;
}

.task-planner-row-linked {
    background: color-mix(in srgb, var(--success) 5%, var(--bg-primary));
}

.quick-todo-board-badge {
    flex-shrink: 0;
}

.task-planner-empty {
    margin: 0;
    padding: 2.5rem 1.5rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.task-planner-add-footer {
    display: block;
    width: 100%;
    margin-top: 0.5rem;
    padding: 0.65rem 1rem;
    border: none;
    border-radius: 0 0 10px 10px;
    background: transparent;
    color: var(--text-muted);
    font-size: 0.9rem;
    text-align: left;
    cursor: pointer;
    transition: background-color 0.15s, color 0.15s;
}

.task-planner-add-footer:hover,
.task-planner-add-footer:focus {
    background-color: color-mix(in srgb, var(--accent) 8%, var(--bg-secondary));
    color: var(--accent);
    outline: none;
}

.task-planner-table-wrap:not(.task-planner-table-wrap--empty) + .task-planner-add-footer {
    border: 1px solid var(--border-color);
    border-top: none;
    border-radius: 0 0 10px 10px;
    margin-top: -0.5rem;
}

/* Home page tips modal */
.tips-modal-content {
    max-width: 520px;
}

.tips-modal-intro {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.tips-modal-list {
    margin: 0 0 1.5rem 1.25rem;
    color: var(--text-primary);
}

.tips-modal-list li {
    margin-bottom: 0.65rem;
    line-height: 1.5;
}

.tips-modal-action {
    display: inline-block;
    text-decoration: none;
    text-align: center;
}

.tips-modal-action.hidden {
    display: none;
}

/* Registered account panel */
.account-panel {
    max-width: 480px;
    padding: 1.5rem;
    background-color: var(--bg-secondary);
    border-radius: 10px;
    border: 1px solid var(--border-color);
}

.account-panel h3 {
    margin-bottom: 0.35rem;
    color: var(--text-primary);
}

.account-greeting {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.account-details {
    margin-bottom: 1rem;
}

.account-row {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: 0.5rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
}

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

.account-row dt {
    font-weight: 600;
    color: var(--text-muted);
}

.account-row dd {
    margin: 0;
    color: var(--text-primary);
}

.account-note {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.auth-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
    max-width: 480px;
}

.auth-tab {
    flex: 1;
    padding: 0.65rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.auth-tab:hover {
    border-color: var(--accent-bright);
    color: var(--accent-bright);
}

.auth-tab.active {
    background-color: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

.auth-panel {
    max-width: 480px;
}

.field-hint {
    margin-top: 0.35rem;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.calendar-connect {
    margin: 1.25rem 0 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.calendar-connect h4 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.calendar-help,
.calendar-import-help {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.calendar-import-help {
    padding: 0.75rem;
    background-color: var(--bg-primary);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.calendar-export-msg {
    margin-top: 0.75rem;
    font-size: 0.9rem;
    font-weight: 500;
}

.calendar-export-msg.success {
    color: var(--success);
}

.calendar-export-msg.error {
    color: var(--danger);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.settings-intro {
    text-align: center;
}

.settings-message {
    text-align: center;
    margin-bottom: 1.25rem;
    font-weight: 500;
}

.settings-message.success {
    color: var(--success);
}

.settings-message.error {
    color: var(--danger);
}

.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.25rem;
}

.settings-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 1.25rem;
}

.settings-card-wide {
    grid-column: 1 / -1;
}

.settings-card h3 {
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.settings-hint {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.settings-help-box {
    font-size: 0.875rem;
    color: var(--text-secondary);
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.75rem;
    margin-bottom: 1rem;
}

.settings-form .btn-primary {
    margin-top: 0.5rem;
}

.settings-link-btn {
    display: inline-block;
    text-decoration: none;
    text-align: center;
    margin-top: 0.5rem;
}

.settings-template-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
    margin-bottom: 1rem;
}

.settings-template-actions select {
    flex: 1 1 180px;
    min-width: 160px;
    padding: 0.65rem 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

.settings-import-row input[type="file"] {
    width: 100%;
    margin-top: 0.35rem;
}

.settings-category-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.settings-category-item {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.settings-category-item input {
    flex: 1;
    padding: 0.6rem 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

a.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: inherit;
}