html, body {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

.cursor-pointer {
    cursor: pointer;
}

a, .btn-link {
    color: var(--color-link);
}

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

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem var(--color-focus-shadow);
}

.content {
    padding-top: 1.1rem;
}

h1:focus {
    outline: none;
}

.valid.modified:not([type=checkbox]) {
    outline: 1px solid var(--color-valid);
}

.invalid {
    outline: 1px solid var(--color-invalid);
}

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

.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, var(--color-error-background);
    padding: 1rem 1rem 1rem 3.7rem;
    color: var(--color-text);
}

    .blazor-error-boundary::after {
        content: "An error has occurred."
    }

.darker-border-checkbox.form-check-input {
    border-color: var(--color-border-dark);
}

/* Gray checkboxes instead of blue */
.form-check-input:checked {
    background-color: var(--color-gray-600);
    border-color: var(--color-gray-600);
}

.form-check-input:focus {
    border-color: var(--color-gray-500);
    box-shadow: 0 0 0 0.25rem rgba(108, 117, 125, 0.25);
}

.form-floating > .form-control-plaintext::placeholder, .form-floating > .form-control::placeholder {
    color: var(--bs-secondary-color);
    text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder, .form-floating > .form-control:focus::placeholder {
    text-align: start;
}

/* Bootstrap color overrides - Graytone theme */

/* Badges */
.badge.bg-primary {
    background-color: var(--color-gray-600) !important;
    color: var(--color-background);
}

.badge.bg-secondary {
    background-color: var(--color-gray-500) !important;
    color: var(--color-background);
}

.badge.bg-success {
    background-color: var(--color-gray-700) !important;
    color: var(--color-background);
}

.badge.bg-info {
    background-color: var(--color-gray-400) !important;
    color: var(--color-text);
}

.badge.bg-warning {
    background-color: var(--color-gray-300) !important;
    color: var(--color-text);
}

.badge.bg-danger {
    background-color: var(--color-gray-800) !important;
    color: var(--color-background);
}

/* Button variants */
.btn-outline-primary {
    color: var(--color-gray-700);
    border-color: var(--color-gray-600);
    background-color: transparent;
}

.btn-outline-primary:hover {
    color: var(--color-background);
    background-color: var(--color-gray-700);
    border-color: var(--color-gray-700);
}

.btn-outline-primary:focus {
    box-shadow: 0 0 0 0.25rem var(--color-focus-shadow);
}

.btn-primary:hover {
    background-color: var(--color-button-primary-hover);
    border-color: var(--color-gray-900);
}

.btn-register {
    color: var(--color-background);
    background-color: var(--color-gray-600);
    border-color: var(--color-gray-700);
}

.btn-register:hover,
.btn-register:focus-visible {
    color: var(--color-background);
    background-color: var(--color-gray-700);
    border-color: var(--color-gray-800);
}

.btn-register:disabled {
    color: var(--color-background);
    background-color: var(--color-gray-500);
    border-color: var(--color-gray-500);
}

.btn-success {
    color: var(--color-background);
    background-color: var(--color-gray-700);
    border-color: var(--color-gray-800);
}

.btn-success:hover {
    background-color: var(--color-gray-800);
    border-color: var(--color-gray-900);
}

.btn-secondary {
    color: var(--color-background);
    background-color: var(--color-gray-600);
    border-color: var(--color-gray-700);
}

.btn-secondary:hover {
    background-color: var(--color-gray-700);
    border-color: var(--color-gray-800);
}

/* Table variants */
.table-success {
    background-color: var(--color-gray-200) !important;
    color: var(--color-text);
}

/* PNG icon helper classes */
.icon-nav {
    width: 6em;
    height: 6em;
    /* cover + circular clip: crops each icon (whatever its native size/aspect ratio)
       to fill the round badge edge-to-edge instead of leaving it small and padded. */
    object-fit: cover;
    object-position: center;
    vertical-align: middle;
    margin-right: 0.25em;
    /* White circular backdrop so icons look consistent whether the source PNG has an
       opaque white background or a transparent one. */
    background-color: #fff;
    border-radius: 50%;
    box-sizing: border-box;
}

.navbar-row-nav .icon-nav {
    background-color: transparent;
}

/* ── Nav label position: text below icon ─────────────────────────────── */
.nav-label-below .nav-link {
    flex-direction: column !important;
    align-items: center !important;
    text-align: center;
}
.navbar-row-nav > .navbar-nav {
    gap: var(--nav-item-gap, 0.25rem);
}

.nav-label-below .icon-nav {
    margin-right: 0 !important;
    margin-bottom: 0.1em !important;
}

.nav-label-right .icon-nav {
    margin-right: 0.25em !important;
}

/* ── Nav label position: text hidden ─────────────────────────────────── */
.nav-label-off .nav-label {
    display: none !important;
}
.nav-label-off .icon-nav {
    margin-right: 0 !important;
}

/* ── Nav label position: text only ──────────────────────────────────── */
.nav-label-textonly .icon-nav {
    display: none !important;
}

.nav-label-textonly {
    column-gap: 1rem;
    row-gap: 0.35rem;
}

/* ── Nav icon size: 75 % ─────────────────────────────────────────────── */
.nav-icon-small .icon-nav {
    width: 4.5em !important;
    height: 4.5em !important;
}

/* ── Nav icon size: 50 % ─────────────────────────────────────────────── */
.nav-icon-xsmall .icon-nav {
    width: 3em !important;
    height: 3em !important;
}

/* ── Nav icon size: 125 % ────────────────────────────────────────────── */
.nav-icon-large .icon-nav {
    width: 7.5em !important;
    height: 7.5em !important;
}

/* ── Nav icon size: 150 % ────────────────────────────────────────────── */
.nav-icon-xlarge .icon-nav {
    width: 9em !important;
    height: 9em !important;
}

.nav-text-small .nav-label {
    font-size: 0.8em;
}

.nav-text-large .nav-label {
    font-size: 1.2em;
}

.nav-text-xlarge .nav-label {
    font-size: 1.4em;
}

.nav-text-xxlarge .nav-label {
    font-size: 1.6em;
}

.nav-text-xxxlarge .nav-label {
    font-size: 2em;
}

/* ── Nav icon color: inverted so dark icons blend into the dark navbar ──────
   Only looks right for icons with a fully opaque, borderless white background. */
.nav-icon-invert-on .icon-nav {
    background-color: transparent;
    padding: 0;
    filter: invert(1);
    mix-blend-mode: lighten;
}

.nav-text-invert-on .nav-label {
    filter: invert(1);
}

.disc-color-field {
    display: flex;
    flex-direction: column;
}

.disc-color-trigger {
    display: grid;
    grid-template-columns: 3.1rem minmax(0, 1fr);
    align-items: center;
    padding: 0;
    border: 1px solid var(--bs-border-color);
    border-radius: var(--bs-border-radius);
    background: var(--bs-body-bg);
    overflow: hidden;
    text-align: left;
}

.disc-color-trigger:hover {
    border-color: var(--color-gray-500);
    background: rgba(248, 249, 250, 0.95);
}

.disc-color-trigger:focus-visible {
    outline: none;
    box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem var(--color-focus-shadow);
}

.disc-color-trigger-swatch {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(1.5em + 0.75rem + 2px);
    background: rgba(233, 236, 239, 0.45);
    border-right: 1px solid rgba(108, 117, 125, 0.16);
}

.disc-color-trigger-input {
    border: 0;
    background: transparent;
    box-shadow: none !important;
    font-weight: 400;
    color: var(--bs-body-color);
    padding: 0.375rem 0.75rem;
    cursor: pointer;
}

.disc-color-trigger-input:focus {
    background: transparent;
}

.disc-color-picker-panel {
    background: linear-gradient(180deg, rgba(248, 249, 250, 0.94), rgba(233, 236, 239, 0.78));
}

.disc-color-card {
    border: 1px solid rgba(108, 117, 125, 0.18);
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.78);
    padding: 0.9rem;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.45);
    overflow: hidden;
}

.disc-color-card .form-label.text-uppercase {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: block;
    max-width: 100%;
}

.disc-color-card-disabled {
    opacity: 0.72;
}

.disc-color-picker {
    height: 3.6rem;
    max-width: none;
    padding: 0.4rem;
    border-radius: 0.9rem;
    border: 1px solid rgba(108, 117, 125, 0.18);
    background-color: #fff;
}

.disc-color-picker:disabled {
    cursor: not-allowed;
    background-color: rgba(233, 236, 239, 0.9);
}

.disc-color-switch .form-check-input {
    margin-top: 0;
}

@media (max-width: 767.98px) {
    .disc-color-trigger {
        grid-template-columns: 2.85rem minmax(0, 1fr);
    }
}

.icon-content {
    width: 5.6em;
    height: 5.6em;
    object-fit: contain;
    vertical-align: middle;
    margin-right: 0.2em;
    /* multiply: white bg × white page = white (invisible); dark icon × white = dark (visible) */
    mix-blend-mode: multiply;
}

.icon-sm {
    width: 3.1em;
    height: 3.1em;
    vertical-align: middle;
    mix-blend-mode: multiply;
}

.icon-tab {
    width: 2.8em;
    height: 2.8em;
    vertical-align: middle;
    margin-right: 0.2em;
    /* multiply: white PNG bg × any light background = near-invisible; dark icon stays dark */
    mix-blend-mode: multiply;
}

.table-warning {
    background-color: var(--color-gray-300) !important;
    color: var(--color-text);
}

.table-danger {
    background-color: var(--color-gray-400) !important;
    color: var(--color-text);
}

/* Accordion - override Bootstrap's blue active/expanded state */
.accordion-button:not(.collapsed) {
    color: var(--color-gray-800);
    background-color: var(--color-gray-200);
    box-shadow: inset 0 -1px 0 var(--color-gray-300);
}

.accordion-button:not(.collapsed)::after {
    /* Reuse Bootstrap's default chevron but tinted dark-gray instead of blue */
    filter: brightness(0) saturate(100%) invert(27%) sepia(6%) saturate(600%) hue-rotate(169deg) brightness(95%) contrast(85%);
}

.accordion-button:focus {
    border-color: var(--color-gray-400);
    box-shadow: 0 0 0 0.25rem rgba(108, 117, 125, 0.25);
}

/* Teacher-style handwritten grade stamp */
.grade-stamp {
    font-family: 'Caveat', cursive;
    font-size: 1.5rem;
    font-weight: 700;
    color: #dc2626;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.1rem;
    height: 2.1rem;
    border: none;
    position: relative;
    transform: rotate(-10deg);
    opacity: 0.82;
    line-height: 1;
    flex-shrink: 0;
    vertical-align: middle;
}

.grade-stamp::before {
    content: '';
    position: absolute;
    inset: 0;
    border: 2.5px solid #dc2626;
    border-radius: 50%;
    filter: url(#wobbly-circle);
}

/* ── Dual-handle range slider ──────────────────────────────────────── */
.dual-range-wrap {
    position: relative;
    height: 20px;
}
.dual-range-wrap .dr-track-bg {
    position: absolute;
    top: 50%; transform: translateY(-50%);
    left: 0; right: 0;
    height: 4px;
    background: #e5e7eb;
    border-radius: 2px;
    pointer-events: none;
}
.dual-range-wrap .dr-track-fill {
    position: absolute;
    top: 50%; transform: translateY(-50%);
    height: 4px;
    background: #3b82f6;
    border-radius: 2px;
    pointer-events: none;
}
.dual-range-wrap input[type=range] {
    position: absolute;
    top: 50%; transform: translateY(-50%);
    left: 0;
    width: 100%;
    margin: 0; padding: 0;
    pointer-events: none;
    background: transparent;
    -webkit-appearance: none;
    appearance: none;
    height: 20px;
}
.dual-range-wrap input[type=range]::-webkit-slider-runnable-track {
    background: transparent;
    height: 4px;
}
.dual-range-wrap input[type=range]::-moz-range-track {
    background: transparent;
    height: 4px;
}
.dual-range-wrap input[type=range]::-webkit-slider-thumb {
    pointer-events: all;
    -webkit-appearance: none;
    appearance: none;
    width: 16px; height: 16px;
    border-radius: 50%;
    background: #fff;
    border: 2px solid #3b82f6;
    cursor: pointer;
    box-shadow: 0 1px 3px rgba(0,0,0,.2);
    margin-top: -6px;
}
.dual-range-wrap input[type=range]::-moz-range-thumb {
    pointer-events: all;
    width: 16px; height: 16px;
    border-radius: 50%;
    background: #fff;
    border: 2px solid #3b82f6;
    cursor: pointer;
    box-shadow: 0 1px 3px rgba(0,0,0,.2);
    border: 2px solid #3b82f6;
}

/* ── Splash Screen ───────────────────────────────────────────────────────── */
.splash-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(0, 0, 0, 0.82);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
    transition: opacity 0.4s ease;
    opacity: 1;
    cursor: pointer;
}

.splash-overlay.splash-fade-out {
    opacity: 0;
    pointer-events: none;
}

.splash-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    text-align: center;
    cursor: default;
    padding: 2rem;
    width: clamp(259px, 65vw, 562px);
}

.splash-logo {
    width: clamp(120px, 30vw, 260px);
    height: auto;
    border-radius: 1rem;
    filter: drop-shadow(0 4px 16px rgba(0,0,0,0.5));
    animation: splashPop 0.5s cubic-bezier(.34,1.56,.64,1) both;
}

.splash-message {
    font-size: clamp(1rem, 3vw, 2rem);
    font-weight: 600;
    color: #fff;
    text-shadow: 0 2px 8px rgba(0,0,0,0.6);
    margin: 0;
    font-family: 'Caveat', cursive;
    white-space: pre-wrap;
    animation: splashPop 0.5s 0.1s cubic-bezier(.34,1.56,.64,1) both;
}

.splash-btn {
    font-family: 'Caveat', cursive;
    font-size: 1.25rem;
}

@keyframes splashPop {
    from { opacity: 0; transform: scale(0.8); }
    to   { opacity: 1; transform: scale(1); }
}

/* ── Accordion smooth open/close animations ──────────────────────────── */
.accordion-collapse.collapsing {
    transition: height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.accordion-collapse .accordion-body {
    opacity: 0;
    transform: translateY(-0.35rem);
    transition: opacity 0.25s ease, transform 0.25s ease;
}

.accordion-collapse.show .accordion-body {
    opacity: 1;
    transform: translateY(0);
}

.accordion-collapse.collapsing .accordion-body {
    opacity: 0.35;
    transform: translateY(-0.2rem);
}

/* ── Rounds detail row entry animation ───────────────────────────────── */
.rounds-details-slide {
    overflow: hidden;
    height: 0;
    will-change: height;
}

.rounds-details-slide > .rounds-details-content {
    overflow: hidden;
}