/* =========================================================
   KeoTeach · «Tu día» (panel de Inicio)
========================================================= */

.kt {
    margin: 22px 0 6px;
    padding: 22px;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background:
        radial-gradient(circle at 100% 0%, color-mix(in srgb, var(--primary) 14%, transparent), transparent 42%),
        linear-gradient(160deg, var(--surface), var(--surface-2));
    box-shadow: var(--shadow-sm);
    animation: kt-in .45s ease both;
}

@keyframes kt-in {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: none; }
}

.kt-head {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    justify-content: space-between;
    gap: 14px;
    margin-bottom: 18px;
}

.kt-head h2 {
    margin: 2px 0 2px;
    font-family: var(--font-display);
    font-size: clamp(22px, 3vw, 30px);
    line-height: 1.15;
}

.kt-date {
    margin: 0;
    color: var(--text-muted);
}

.kt-date::first-letter {
    text-transform: uppercase;
}

/* ---------- Tarjetas de datos ---------- */

.kt-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

.kt-stat {
    display: flex;
    align-items: center;
    gap: 14px;
    min-width: 0;
    padding: 14px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--bg-2);
    color: var(--text);
    font: inherit;
    text-align: left;
    transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

button.kt-stat {
    cursor: pointer;
}

button.kt-stat:hover,
button.kt-stat:focus-visible {
    transform: translateY(-2px);
    border-color: var(--orange);
    box-shadow: 0 10px 26px color-mix(in srgb, var(--orange) 18%, transparent);
}

.kt-label {
    display: block;
    color: var(--text-muted);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .04em;
    text-transform: uppercase;
}

.kt-value {
    display: block;
    font-family: var(--font-display);
    font-size: 26px;
    line-height: 1.2;
}

.kt-value small {
    color: var(--text-muted);
    font-family: var(--font-main);
    font-size: 13px;
    font-weight: 500;
}

.kt-hint {
    display: block;
    color: var(--text-soft);
    font-size: 12.5px;
}

.kt-ok {
    display: block;
    color: var(--green);
    font-weight: 700;
    font-size: 12.5px;
}

.kt-icon {
    display: grid;
    place-items: center;
    flex-shrink: 0;
    width: 52px;
    height: 52px;
    border-radius: 16px;
    font-size: 22px;
    background: var(--surface-3);
    color: var(--text-muted);
}

.kt-streak.on .kt-icon {
    background: color-mix(in srgb, var(--orange) 18%, transparent);
    color: var(--orange);
}

.kt-streak.on .kt-icon i {
    animation: kt-flame 1.6s ease-in-out infinite;
}

@keyframes kt-flame {
    0%, 100% { transform: scale(1) rotate(-3deg); }
    50% { transform: scale(1.12) rotate(3deg); }
}

.kt-cards .kt-icon {
    background: color-mix(in srgb, var(--orange) 16%, transparent);
    color: var(--orange);
}

/* Anillo del objetivo */

.kt-ring-wrap {
    position: relative;
    flex-shrink: 0;
    width: 64px;
    height: 64px;
}

.kt-ring {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.kt-ring circle {
    fill: none;
    stroke-width: 8;
}

.kt-ring-bg {
    stroke: var(--surface-3);
}

.kt-ring-fg {
    stroke: var(--primary);
    stroke-linecap: round;
    transition: stroke-dashoffset .8s cubic-bezier(.2, .8, .2, 1);
}

.kt-goal.reached .kt-ring-fg {
    stroke: var(--green);
}

.kt-ring-wrap strong {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    font-size: 13px;
}

.kt-goal-select {
    margin-top: 4px;
    padding: 2px 6px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--surface);
    color: var(--text-soft);
    font: inherit;
    font-size: 12px;
}

/* ---------- Tareas y exámenes ---------- */

.kt-cols {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin-top: 12px;
}

.kt-box {
    min-width: 0;
    padding: 14px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--bg-2);
}

.kt-box-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 8px;
}

.kt-box-head h3 {
    margin: 0 0 10px;
    font-size: 15px;
}

.kt-box-head h3 i {
    color: var(--primary-2);
}

.kt-box-head small {
    color: var(--text-muted);
}

.kt-form {
    display: flex;
    gap: 6px;
    margin-bottom: 8px;
}

.kt-form input {
    flex: 1 1 auto;
    min-width: 0;
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--surface);
    color: var(--text);
    font: inherit;
    font-size: 14px;
}

.kt-form input[type="date"] {
    flex: 0 0 auto;
    width: 150px;
}

.kt-form input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 22%, transparent);
}

.kt-list {
    margin: 0;
    padding: 0;
    list-style: none;
    max-height: 220px;
    overflow-y: auto;
}

.kt-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 7px 4px;
    border-bottom: 1px solid var(--border);
    animation: kt-in .25s ease both;
}

.kt-list li:last-child {
    border-bottom: 0;
}

.kt-task label {
    display: flex;
    flex: 1;
    align-items: center;
    gap: 10px;
    min-width: 0;
    cursor: pointer;
}

.kt-task input {
    width: 17px;
    height: 17px;
    accent-color: var(--green);
    flex-shrink: 0;
}

.kt-task span {
    overflow-wrap: anywhere;
    transition: color var(--transition);
}

.kt-task.done span {
    color: var(--text-muted);
    text-decoration: line-through;
}

.kt-x {
    flex-shrink: 0;
    padding: 4px 6px;
    border: 0;
    border-radius: 8px;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    opacity: .55;
}

.kt-x:hover,
.kt-x:focus-visible {
    opacity: 1;
    color: var(--red);
    background: color-mix(in srgb, var(--red) 12%, transparent);
}

.kt-exam-text {
    display: flex;
    flex: 1;
    flex-direction: column;
    min-width: 0;
}

.kt-exam-text strong {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.kt-exam-text small {
    color: var(--text-muted);
}

.kt-badge {
    flex-shrink: 0;
    min-width: 66px;
    padding: 4px 8px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 800;
    text-align: center;
}

.kt-badge.hot { background: color-mix(in srgb, var(--red) 18%, transparent); color: var(--red); }
.kt-badge.warm { background: color-mix(in srgb, var(--yellow) 18%, transparent); color: var(--yellow); }
.kt-badge.calm { background: color-mix(in srgb, var(--cyan) 15%, transparent); color: var(--cyan); }

.kt-plan {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    flex-shrink: 0;
    padding: 4px 9px;
    border: 1px solid color-mix(in srgb, var(--primary) 40%, transparent);
    border-radius: 999px;
    background: color-mix(in srgb, var(--primary) 10%, transparent);
    color: var(--primary-2);
    font: inherit;
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
    transition: background var(--transition);
}

.kt-plan:hover,
.kt-plan:focus-visible {
    background: color-mix(in srgb, var(--primary) 22%, transparent);
}

.kt-reminder {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 12px;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--bg-2);
}

.kt-reminder > i {
    color: var(--yellow);
    font-size: 18px;
}

.kt-reminder > div {
    flex: 1;
    min-width: 0;
}

.kt-reminder strong,
.kt-reminder small {
    display: block;
}

.kt-reminder small {
    color: var(--text-muted);
}

.kt-reminder select {
    padding: 4px 6px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--surface);
    color: var(--text);
    font: inherit;
}

.kt-switch {
    position: relative;
    flex-shrink: 0;
    width: 44px;
    height: 24px;
}

.kt-switch input {
    position: absolute;
    opacity: 0;
    inset: 0;
    margin: 0;
    cursor: pointer;
}

.kt-switch span {
    position: absolute;
    inset: 0;
    border-radius: 999px;
    background: var(--surface-3);
    pointer-events: none;
    transition: background var(--transition);
}

.kt-switch span::after {
    content: "";
    position: absolute;
    top: 3px;
    left: 3px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #fff;
    transition: transform var(--transition);
}

.kt-switch input:checked + span {
    background: var(--green);
}

.kt-switch input:checked + span::after {
    transform: translateX(20px);
}

.kt-switch input:focus-visible + span {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.kt-empty {
    margin: 6px 0 2px;
    color: var(--text-muted);
    font-size: 13.5px;
}

.kt-local {
    margin: 12px 0 0;
    color: var(--text-muted);
    font-size: 12px;
}

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
    .kt-stats { grid-template-columns: 1fr 1fr; }
    .kt-cards { grid-column: 1 / -1; }
    .kt-cols { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
    .kt { padding: 16px; }
    .kt-stats { grid-template-columns: 1fr; }
    .kt-head .btn { width: 100%; justify-content: center; }
    .kt-plan span { display: none; }
    .kt-plan { padding: 6px 9px; }
    [data-kt-form="exam"] { flex-wrap: wrap; }
    [data-kt-form="exam"] input[type="text"] { flex-basis: 100%; }
    .kt-form input[type="date"] { flex: 1 1 auto; width: auto; }
}

@media (prefers-reduced-motion: reduce) {
    .kt, .kt-list li, .kt-streak.on .kt-icon i { animation: none; }
    .kt-ring-fg { transition: none; }
}