/**
 * AEON — Astronomy Enigma of the Night
 * Widget styles: collapsed teaser strip + expandable question panel
 *               + in-widget practice mode.
 *
 * Lives at: astroutah-tools/quiz/assets/aeon.css
 *
 * @package AstroUtah_Tools
 * @since   1.2.0
 */

/* ==========================================================================
   WIDGET WRAPPER
   ========================================================================== */

.au-aeon-widget {
    font-family: var(--font-sans, system-ui, sans-serif);
    margin: 0 0 2rem;
    border-radius: var(--radius-lg, 12px);
    overflow: hidden;
    border: 1px solid var(--color-border, rgba(255,255,255,.10));
    background: var(--color-bg-card, #131929);
    box-shadow: 0 4px 24px rgba(0,0,0,.45);
}

/* ==========================================================================
   TEASER STRIP  — always visible, acts as the toggle trigger
   ========================================================================== */

.au-aeon-strip {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 1rem;
    padding: .9rem 1.25rem;
    cursor: pointer;
    user-select: none;
    background: linear-gradient(
        135deg,
        var(--color-bg-surface, #1a2240) 0%,
        var(--color-bg-card,    #131929) 100%
    );
    border-bottom: 1px solid transparent;
    transition: border-color .25s ease, background .2s ease;
    outline: none;
}

.au-aeon-strip:focus-visible {
    outline: 2px solid var(--color-accent, #6c8ebf);
    outline-offset: -2px;
}

.au-aeon-strip:hover {
    background: linear-gradient(135deg, #1e2a50 0%, #161f38 100%);
}

.au-aeon-widget--expanded .au-aeon-strip {
    border-bottom-color: var(--color-border, rgba(255,255,255,.10));
}

/* ── Brand group (left column) ── */
.au-aeon-strip__brand-group {
    display: flex;
    flex-direction: column;
    gap: .1rem;
    min-width: max-content;
}

.au-aeon-strip__brand {
    font-size: .95rem;
    font-weight: 800;
    letter-spacing: .18em;
    color: var(--color-accent, #6c8ebf);
    line-height: 1;
}

.au-aeon-strip__subtitle {
    font-size: .6rem;
    font-weight: 500;
    letter-spacing: .08em;
    color: var(--color-text-muted, rgba(255,255,255,.4));
    text-transform: uppercase;
    line-height: 1;
}

/* ── Teaser group (centre column) ── */
.au-aeon-strip__teaser-group {
    display: flex;
    flex-direction: column;
    gap: .2rem;
    min-width: 0;
}

.au-aeon-strip__teaser {
    margin: 0;
    font-size: .82rem;
    color: var(--color-text-secondary, rgba(255,255,255,.7));
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.4;
}

.au-aeon-strip__teaser[data-state="correct"] { color: #4ade80; }
.au-aeon-strip__teaser[data-state="wrong"]   { color: #f87171; }

.au-aeon-strip__practice {
    display: inline-block;
    font-size: .72rem;
    font-weight: 600;
    color: var(--color-accent, #6c8ebf);
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    text-decoration: underline;
    text-underline-offset: 2px;
    width: fit-content;
    line-height: 1;
    transition: color .15s ease;
}

.au-aeon-strip__practice:hover { color: #8ab0e0; }

/* ── Meta group (right column) ── */
.au-aeon-strip__meta {
    display: flex;
    align-items: center;
    gap: .6rem;
    flex-shrink: 0;
}

.au-aeon-strip__date {
    font-size: .7rem;
    color: var(--color-text-muted, rgba(255,255,255,.4));
    white-space: nowrap;
}

/* ── Chevron ── */
.au-aeon-strip__chevron {
    display: inline-block;
    width: 16px;
    height: 16px;
    position: relative;
    flex-shrink: 0;
}

.au-aeon-strip__chevron::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 8px;
    height: 8px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg) translate(-1px, -1px);
    transition: transform .3s cubic-bezier(.4,0,.2,1);
}

.au-aeon-widget--expanded .au-aeon-strip__chevron::after {
    transform: rotate(-135deg) translate(-1px, -1px);
}

/* ==========================================================================
   COLLAPSIBLE PANEL
   ========================================================================== */

.au-aeon-panel {
    max-height: 0;
    overflow: hidden;
    transition: max-height .4s cubic-bezier(.4,0,.2,1);
}

.au-aeon-widget--expanded .au-aeon-panel {
    max-height: 2400px;
}

.au-aeon-panel__inner {
    padding: 0 1.5rem;
    transition: padding .35s cubic-bezier(.4,0,.2,1);
}

.au-aeon-widget--expanded .au-aeon-panel__inner {
    padding: 1.5rem 1.5rem 1.25rem;
}

/* ==========================================================================
   DIFFICULTY BADGES
   ========================================================================== */

.au-aeon-diff-badge {
    display: inline-flex;
    align-items: center;
    padding: .2em .6em;
    border-radius: 999px;
    font-size: .65rem;
    font-weight: 700;
    letter-spacing: .06em;
    text-transform: uppercase;
    border: 1px solid transparent;
}

.au-aeon-diff-badge--easy   { color: #4ade80; border-color: rgba(74,222,128,.35);  background: rgba(74,222,128,.08); }
.au-aeon-diff-badge--medium { color: #fbbf24; border-color: rgba(251,191,36,.35);  background: rgba(251,191,36,.08); }
.au-aeon-diff-badge--hard   { color: #f87171; border-color: rgba(248,113,113,.35); background: rgba(248,113,113,.08); }

/* ==========================================================================
   QUESTION TEXT
   ========================================================================== */

.au-aeon-question-text {
    margin: 0 0 1.25rem;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-text-primary, #e8eaf0);
    line-height: 1.5;
}

/* ==========================================================================
   OPTIONS
   ========================================================================== */

.au-aeon-options {
    display: flex;
    flex-direction: column;
    gap: .55rem;
    margin-bottom: 1rem;
}

.au-aeon-option {
    display: flex;
    align-items: center;
    gap: .75rem;
    width: 100%;
    padding: .65rem .9rem;
    border-radius: var(--radius-md, 8px);
    border: 1px solid var(--color-border, rgba(255,255,255,.10));
    background: var(--color-bg-surface, #1a2240);
    color: var(--color-text-primary, #e8eaf0);
    font-size: .9rem;
    text-align: left;
    cursor: pointer;
    transition: border-color .15s ease, background .15s ease;
}

.au-aeon-option:hover:not(:disabled) {
    border-color: var(--color-accent, #6c8ebf);
    background: rgba(108,142,191,.1);
}

.au-aeon-option:disabled { cursor: default; }

.au-aeon-option__key {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.6rem;
    height: 1.6rem;
    border-radius: 50%;
    font-size: .75rem;
    font-weight: 700;
    flex-shrink: 0;
    background: rgba(255,255,255,.06);
    color: var(--color-text-muted, rgba(255,255,255,.5));
    transition: background .15s ease, color .15s ease;
}

.au-aeon-option__text {
    flex: 1;
    line-height: 1.4;
}

/* Result states */
.au-aeon-option--correct {
    border-color: rgba(74,222,128,.5);
    background: rgba(74,222,128,.08);
}
.au-aeon-option--correct .au-aeon-option__key {
    background: rgba(74,222,128,.2);
    color: #4ade80;
}

.au-aeon-option--wrong {
    border-color: rgba(248,113,113,.5);
    background: rgba(248,113,113,.08);
}
.au-aeon-option--wrong .au-aeon-option__key {
    background: rgba(248,113,113,.2);
    color: #f87171;
}

.au-aeon-option--selected {
    border-color: var(--color-accent, #6c8ebf);
    background: rgba(108,142,191,.12);
}

/* ==========================================================================
   REVEAL PANEL
   ========================================================================== */

.au-aeon-reveal {
    margin-top: .75rem;
    padding-top: 1rem;
    border-top: 1px solid var(--color-border, rgba(255,255,255,.08));
    animation: aeon-fade-up .3s ease forwards;
}

@keyframes aeon-fade-up {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

.au-aeon-verdict {
    font-size: .95rem;
    font-weight: 700;
    margin-bottom: .6rem;
}
.au-aeon-verdict--correct { color: #4ade80; }
.au-aeon-verdict--wrong   { color: #f87171; }

.au-aeon-explanation {
    font-size: .85rem;
    color: var(--color-text-muted, rgba(255,255,255,.65));
    line-height: 1.6;
    margin-bottom: 1rem;
}

/* ==========================================================================
   CTA
   ========================================================================== */

.au-aeon-cta {
    display: flex;
    flex-direction: column;
    gap: .5rem;
    align-items: flex-start;
}

.au-aeon-cta__prompt {
    margin: 0;
    font-size: .8rem;
    color: var(--color-text-muted, rgba(255,255,255,.45));
}

.au-aeon-cta__btn {
    display: inline-flex;
    align-items: center;
    padding: .5rem 1rem;
    border-radius: var(--radius-md, 8px);
    background: var(--color-accent, #3b5998);
    color: #fff;
    font-size: .82rem;
    font-weight: 600;
    text-decoration: none;
    transition: background .15s ease, transform .1s ease;
}

.au-aeon-cta__btn:hover {
    background: var(--color-accent-hover, #4a6ab0);
    transform: translateX(2px);
    text-decoration: none;
    color: #fff;
}

.au-aeon-cta__register {
    font-size: .75rem;
    color: var(--color-text-muted, rgba(255,255,255,.45));
    text-decoration: underline;
    text-underline-offset: 2px;
}

/* ==========================================================================
   LOADING SPINNER
   ========================================================================== */

.au-aeon-loading {
    display: flex;
    justify-content: center;
    padding: 1.5rem 0;
}

.au-aeon-spinner {
    display: inline-block;
    width: 22px;
    height: 22px;
    border: 2px solid rgba(255,255,255,.15);
    border-top-color: var(--color-accent, #6c8ebf);
    border-radius: 50%;
    animation: aeon-spin .7s linear infinite;
}

@keyframes aeon-spin {
    to { transform: rotate(360deg); }
}

/* ==========================================================================
   EMPTY STATE
   ========================================================================== */

.au-aeon-empty {
    padding: 1rem 0;
    color: var(--color-text-muted, rgba(255,255,255,.5));
    font-size: .9rem;
    margin: 0;
}

/* ==========================================================================
   ERROR
   ========================================================================== */

.au-aeon-error {
    margin: .75rem 0 0;
    font-size: .82rem;
    color: #f87171;
}

/* ==========================================================================
   PRACTICE MODE PANEL
   ========================================================================== */

.au-aeon-practice {
    border-top: 1px solid var(--color-border, rgba(255,255,255,.10));
}

/* ── Header bar ── */
.au-aeon-practice__header {
    display: flex;
    align-items: center;
    gap: .75rem;
    padding: .75rem 1.5rem;
    background: linear-gradient(135deg, #1a2240 0%, #131929 100%);
    border-bottom: 1px solid var(--color-border, rgba(255,255,255,.08));
}

.au-aeon-practice__title {
    font-size: .75rem;
    font-weight: 700;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--color-accent, #6c8ebf);
    flex: 1;
}

.au-aeon-practice__counter {
    font-size: .72rem;
    color: var(--color-text-muted, rgba(255,255,255,.45));
    min-width: 6rem;
    text-align: right;
}

.au-aeon-practice__close {
    background: none;
    border: none;
    color: var(--color-text-muted, rgba(255,255,255,.45));
    font-size: 1rem;
    line-height: 1;
    cursor: pointer;
    padding: .2rem .35rem;
    border-radius: 4px;
    transition: color .15s ease, background .15s ease;
    flex-shrink: 0;
}

.au-aeon-practice__close:hover {
    color: var(--color-text-primary, #e8eaf0);
    background: rgba(255,255,255,.07);
}

/* ── Body ── */
.au-aeon-practice__body {
    padding: 1.25rem 1.5rem 1.5rem;
}

.au-aeon-practice__loading {
    display: flex;
    justify-content: center;
    padding: 1.5rem 0;
}

.au-aeon-practice__question {
    margin: 0 0 1.25rem;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-text-primary, #e8eaf0);
    line-height: 1.5;
}

/* Constellation canvas — explicitly sized and block so it doesn't collapse */
.au-aeon-practice__constellation-wrap {
    margin: 0 0 1.25rem;
    text-align: center;
}

.au-aeon-practice__constellation-canvas {
    display: block;
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 0 auto;
}

/* Options inside practice reuse .au-aeon-options / .au-aeon-option */
.au-aeon-practice__options {
    margin-bottom: 1rem;
}

/* ── Reveal ── */
.au-aeon-practice__reveal {
    margin-top: .75rem;
    padding-top: 1rem;
    border-top: 1px solid var(--color-border, rgba(255,255,255,.08));
    animation: aeon-fade-up .3s ease forwards;
}

.au-aeon-practice__verdict {
    margin-bottom: .6rem;
}

.au-aeon-practice__explanation {
    margin-bottom: 1rem;
}

/* ── Next / actions ── */
.au-aeon-practice__actions {
    display: flex;
    gap: .75rem;
    align-items: center;
}

.au-aeon-practice__next {
    display: inline-flex;
    align-items: center;
    padding: .5rem 1.1rem;
    border-radius: var(--radius-md, 8px);
    background: var(--color-accent, #3b5998);
    color: #fff;
    font-size: .82rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: background .15s ease, transform .1s ease;
}

.au-aeon-practice__next:hover {
    background: var(--color-accent-hover, #4a6ab0);
    transform: translateX(2px);
}

/* ── Pool exhausted ── */
.au-aeon-practice__exhausted {
    text-align: center;
    padding: 1rem 0 .5rem;
}

.au-aeon-practice__exhausted-msg {
    font-size: .9rem;
    color: var(--color-text-secondary, rgba(255,255,255,.7));
    margin: 0 0 1rem;
    line-height: 1.5;
}

.au-aeon-practice__restart {
    display: inline-flex;
    align-items: center;
    padding: .5rem 1.1rem;
    border-radius: var(--radius-md, 8px);
    background: rgba(255,255,255,.07);
    color: var(--color-text-primary, #e8eaf0);
    font-size: .82rem;
    font-weight: 600;
    border: 1px solid var(--color-border, rgba(255,255,255,.12));
    cursor: pointer;
    transition: background .15s ease;
}

.au-aeon-practice__restart:hover {
    background: rgba(255,255,255,.12);
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */

@media (max-width: 480px) {
    .au-aeon-strip {
        gap: .6rem;
        padding: .75rem 1rem;
    }

    .au-aeon-strip__date { display: none; }

    .au-aeon-panel__inner,
    .au-aeon-widget--expanded .au-aeon-panel__inner {
        padding: 1rem 1rem .9rem;
    }

    .au-aeon-practice__header { padding: .65rem 1rem; }
    .au-aeon-practice__body   { padding: 1rem 1rem 1.25rem; }

    .au-aeon-question-text,
    .au-aeon-practice__question { font-size: .97rem; }
}

/* Practice panel hidden state */
.au-aeon-practice--hidden {
    display: none;
}