/* Notice bar — one strip at the top of the app with stacked notices peeking
   behind it, a detail sheet the strip morphs into, and transient flash toasts.
   Motion lives in notice_bar_controller.js (Web Animations API). */

.notice-zone {
    --notice-strip-h: 44px;

    position: relative;
    z-index: 900;
    flex: none;
}

.notice-kind-mission {
    --notice-c1: var(--notice-mission-start);
    --notice-c2: var(--notice-mission-end);
}
.notice-kind-feature {
    --notice-c1: var(--notice-feature-start);
    --notice-c2: var(--notice-feature-end);
}
.notice-kind-announcement {
    --notice-c1: var(--notice-announcement-start);
    --notice-c2: var(--notice-announcement-end);
}
.notice-kind-urgent {
    --notice-c1: var(--notice-urgent-start);
    --notice-c2: var(--notice-urgent-end);
}

.notice-zone__stack {
    position: relative;
    perspective: 900px;
}

.notice-strip {
    position: relative;
    z-index: 3;
    isolation: isolate;
    height: var(--notice-strip-h);
    display: flex;
    align-items: center;
    gap: calc(var(--space-4) / 2);
    padding: 0 calc(var(--space-1) * 1.5) 0 calc(var(--space-6) / 2);
    color: var(--notice-on-accent);
    cursor: pointer;
    overflow: hidden;
    user-select: none;
    background: linear-gradient(90deg, var(--notice-c1), var(--notice-c2));
    transform-origin: 50% 50%;
    outline: none;
}

.notice-strip:focus-visible { box-shadow: inset 0 0 0 var(--border-2) var(--notice-on-accent); }
.notice-strip:hover .notice-strip__title {
    text-decoration: underline;
    text-underline-offset: calc(var(--space-1) * 0.75);
}

.notice-strip__icon {
    font-size: var(--text-lg);
    width: 24px;
    height: 24px;
    display: grid;
    place-items: center;
    flex: none;
}

.notice-strip__tag {
    font-size: var(--text-caption);
    font-weight: var(--weight-7);
    padding: var(--border-2) var(--space-2);
    border-radius: var(--radius-round);
    background: var(--notice-overlay);
    white-space: nowrap;
    flex: none;
}

.notice-strip__title {
    font-weight: var(--weight-6);
    font-size: var(--text-body-sm);
    white-space: nowrap;
    flex: none;
    max-width: 45%;
    overflow: hidden;
    text-overflow: ellipsis;
}

.notice-strip__summary {
    font-size: var(--text-sm);
    opacity: 0.88;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
    min-width: 0;
}

.notice-strip__more {
    font-size: var(--text-0);
    opacity: 0.9;
    white-space: nowrap;
    flex: none;
}

.notice-strip__count {
    font-size: var(--text-caption);
    font-weight: var(--weight-8);
    background: var(--notice-on-accent);
    color: var(--notice-c2);
    border-radius: var(--radius-round);
    padding: var(--border-2) calc(var(--space-2) - var(--border-1));
    flex: none;
}

.notice-strip__close {
    appearance: none;
    border: 0;
    background: transparent;
    color: var(--notice-on-accent);
    width: 32px;
    height: 32px;
    border-radius: var(--notice-radius);
    font-size: var(--text-3);
    line-height: 1;
    cursor: pointer;
    opacity: 0.9;
    flex: none;
}

.notice-strip__close:hover { background: var(--notice-overlay-hover); }

.notice-strip__sweep {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, var(--notice-success-start), var(--notice-success-end));
    transform: scaleX(0);
    transform-origin: left;
    z-index: -1;
}

.notice-strip__check path {
    stroke-dasharray: 22;
    stroke-dashoffset: 22;
}

.notice-peek {
    position: absolute;
    top: 0;
    height: var(--notice-strip-h);
    border-radius: 0 0 var(--notice-radius) var(--notice-radius);
    background: linear-gradient(90deg, var(--notice-c1), var(--notice-c2));
    filter: brightness(0.8) saturate(0.8);
}

.notice-peek--1 {
    left: 10px;
    right: 10px;
    z-index: 2;
    transform: translateY(5px);
}
.notice-peek--2 {
    left: 22px;
    right: 22px;
    z-index: 1;
    transform: translateY(10px);
    filter: brightness(0.65) saturate(0.6);
}

/* Transient flash */
.notice-zone__toasts {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    pointer-events: none;
}

.notice-toast {
    pointer-events: auto;
    margin-top: calc(var(--space-4) / 2);
    max-width: calc(100vw - 32px);
    background: var(--notice-toast-bg);
    color: var(--notice-toast-text);
    border-radius: var(--radius-round);
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-sm);
    display: flex;
    gap: calc(var(--space-5) / 2);
    align-items: center;
    box-shadow: var(--notice-toast-shadow);
    position: relative;
    overflow: hidden;
}

.notice-toast__timer {
    position: absolute;
    left: 0;
    bottom: 0;
    height: 2px;
    width: 100%;
    background: var(--color-success);
    transform-origin: left;
}

.notice-toast__action {
    background: none;
    border: 0;
    color: var(--notice-toast-action);
    font-weight: var(--weight-7);
    cursor: pointer;
    padding: 0;
    font-size: var(--text-sm);
}

/* Detail sheet — the strip morphs into it */
.notice-backdrop {
    position: fixed;
    inset: 0;
    z-index: 1300;
    background: var(--notice-backdrop-bg);
    backdrop-filter: blur(3px);
    opacity: 0;
    pointer-events: none;
}

.notice-backdrop.is-open { pointer-events: auto; }

.notice-sheet {
    position: fixed;
    z-index: 1301;
    background: var(--surface-bg);
    color: var(--text-primary);
    overflow: hidden auto;
    box-shadow: var(--notice-sheet-shadow);
}

.notice-sheet[hidden] { display: none; }

.notice-sheet__ghost {
    position: absolute;
    inset: 0;
    z-index: 3;
    background: linear-gradient(90deg, var(--notice-c1), var(--notice-c2));
    pointer-events: none;
}

.notice-sheet__ghost .notice-strip {
    background: none;
    cursor: default;
}

.notice-sheet__hero {
    height: var(--notice-hero-height);
    background: linear-gradient(120deg, var(--notice-c1), var(--notice-c2));
    position: relative;
    display: flex;
    align-items: flex-end;
    gap: calc(var(--space-5) / 2);
    padding: calc(var(--space-5) * 0.75) calc(var(--space-5) - var(--border-2));
    color: var(--notice-on-accent);
}

.notice-sheet__icon {
    font-size: var(--notice-hero-icon-size);
    line-height: 1;
    filter: drop-shadow(var(--notice-icon-shadow));
}

.notice-sheet__tag {
    font-size: var(--text-0);
    font-weight: var(--weight-7);
    padding: calc(var(--space-1) * 0.75) calc(var(--space-4) / 2);
    border-radius: var(--radius-round);
    background: var(--notice-overlay);
    margin-bottom: calc(var(--space-1) * 1.5);
}

.notice-sheet__close {
    position: absolute;
    top: 10px;
    right: 10px;
    appearance: none;
    border: 0;
    background: var(--notice-overlay-hover);
    color: var(--notice-on-accent);
    width: 32px;
    height: 32px;
    border-radius: var(--radius-round);
    font-size: var(--text-lg);
    cursor: pointer;
}

.notice-sheet__content { padding: var(--space-4) calc(var(--space-5) - var(--border-2)) calc(var(--space-5) - var(--border-2)); }
.notice-sheet__content h2 {
    margin: 0 0 var(--space-2);
    font-size: var(--text-3);
}
.notice-sheet__content p {
    margin: 0 0 calc(var(--space-6) / 2);
    color: var(--text-muted);
    font-size: var(--text-body-sm);
    line-height: var(--leading-3);
}

.notice-sheet__steps {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--space-3);
    display: grid;
    gap: calc(var(--space-1) * 1.5);
}

.notice-sheet__steps li {
    display: flex;
    gap: calc(var(--space-4) / 2);
    align-items: center;
    font-size: var(--text-body-sm);
    padding: var(--space-2) calc(var(--space-4) / 2);
    border-radius: var(--notice-radius);
    background: var(--surface-section);
    color: var(--text-muted);
}

.notice-sheet__steps li.is-current {
    color: var(--text-primary);
    font-weight: var(--weight-6);
    box-shadow: inset 0 0 0 var(--border-1) var(--notice-accent-soft);
}

.notice-sheet__steps li.is-done { color: var(--color-success); }

.notice-sheet__step-no {
    width: 22px;
    height: 22px;
    border-radius: var(--radius-round);
    display: grid;
    place-items: center;
    background: var(--border-color);
    font-size: var(--text-0);
    font-weight: var(--weight-7);
    flex: none;
}

.notice-sheet__steps li.is-current .notice-sheet__step-no {
    background: var(--notice-accent);
    color: var(--notice-on-accent);
}
.notice-sheet__steps li.is-done .notice-sheet__step-no {
    background: var(--notice-success-end);
    color: var(--notice-on-accent);
}

.notice-sheet__actions {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: var(--space-2);
    flex-wrap: wrap;
}
.notice-sheet__hint {
    font-size: var(--text-0);
    color: var(--text-muted);
    margin-right: auto;
}

.notice-sheet__button {
    appearance: none;
    border: var(--border-1) solid var(--border-color);
    background: var(--surface-bg);
    color: var(--text-primary);
    border-radius: var(--notice-radius);
    padding: calc(var(--space-1) * 1.5) calc(var(--space-5) / 2);
    font-size: var(--text-sm);
    font-weight: var(--weight-6);
    cursor: pointer;
}

.notice-sheet__button--primary {
    background: linear-gradient(90deg, var(--notice-c1), var(--notice-c2));
    color: var(--notice-on-accent);
    border: 0;
}

/* Onboarding spotlight on the element a mission points at */
.notice-spot {
    position: relative;
    z-index: 4;
    animation: notice-spot-pulse var(--notice-pulse-duration) var(--ease-out-3) infinite;
}

/* Keep the mission ring when the chat composer receives autofocus. */
.notice-spot,
textarea.notice-spot:focus,
textarea.notice-spot:focus-visible {
    outline: var(--border-2) solid var(--notice-accent);
    outline-offset: calc(var(--space-1) * 0.75);
}

textarea.notice-spot,
textarea.notice-spot:focus,
textarea.notice-spot:focus-visible {
    border-color: var(--notice-accent);
    box-shadow: none;
}

.notice-spot-tip {
    position: fixed;
    z-index: 1250;
    background: var(--notice-tip-bg);
    color: var(--notice-on-accent);
    font-size: var(--text-0);
    padding: calc(var(--space-1) * 1.5) calc(var(--space-4) / 2);
    border-radius: var(--notice-radius);
    white-space: nowrap;
    pointer-events: none;
    animation: notice-tip-in var(--notice-tip-duration) var(--notice-ease-spring);
}

@keyframes notice-spot-pulse {
    0% { box-shadow: 0 0 0 0 var(--notice-accent-pulse); }
    100% { box-shadow: 0 0 0 calc(var(--space-5) / 2) var(--notice-accent-clear); }
}

@keyframes notice-tip-in {
    from {
        opacity: 0;
        transform: translateY(-6px) scale(0.9);
    }
}

.notice-confetti {
    position: fixed;
    z-index: 1400;
    width: 8px;
    height: 12px;
    border-radius: var(--radius-1);
    pointer-events: none;
}

@media (max-width: 640px) {
    .notice-sheet__actions {
        display: grid;
        grid-template-columns: auto auto;
    }
    .notice-sheet__hint { grid-column: 1 / -1; }

    .notice-strip__summary,
    .notice-strip__more { display: none; }
    .notice-strip__title {
        flex: 1;
        max-width: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    .notice-spot,
    .notice-spot-tip { animation: none; }
}

@media print {
    .notice-zone { display: none; }
}