/* ══════════════════════════════════════════════════════════════
   Atoms / Button
   The widget button family (.widget-btn / .wb-btn) lives with its
   surface — shadow-DOM sheet in js/widgets/_base/widget-base-styles.js
   and the light-DOM handler sheet in js/handlers/widget/widget-bar.css.
   What's left here are the global stamps used outside the widget bar:
     .btn-primary-dark      — prominent black pill (unpause, primary CTA)
     .btn-step-continue     — step-bar yellow Continue action
         .unpause           — black Unpause variant (replaces Continue during pause)
     .btn-completion-primary / .btn-completion-secondary
     .zoom-in-btn           — floating yellow stamp + zoomed-in active state
   ══════════════════════════════════════════════════════════════ */

/* ── Prominent primary (black stamp) ── */
.btn-primary-dark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 40px;
    padding: 0 24px;
    border: 1.5px solid var(--color-primary);
    border-radius: var(--radius-full);
    background: var(--color-primary);
    color: var(--color-white);
    font-family: var(--font-display);
    font-weight: var(--font-weight-bold);
    font-size: 18px;
    letter-spacing: -0.02em;
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: 3px 3px 0 rgba(26, 26, 26, 0.3);
}

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

.btn-primary-dark:active {
    transform: scale(0.97);
    box-shadow: 1px 1px 0 rgba(26, 26, 26, 0.3);
}

/* ── Step-bar Continue action ──
   No own offset shadow — the parent #step-bar carries a drop-shadow
   filter that covers card + button as one silhouette. Border weight
   and colour match the card frame so the CTA reads as part of the
   step bar rather than a detached chip. */
.btn-step-continue {
    align-self: flex-start;
    margin-top: 8px;
    background: var(--color-yellow-sticky);
    color: var(--color-text);
    border: 2px solid var(--color-text);
    border-radius: 5px;
    padding: 6px 18px;
    font-family: var(--font-family);
    font-size: 12px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.btn-step-continue:hover {
    background: var(--color-yellow-hover);
}

.btn-step-continue:active {
    background: #F0B840;
}

.btn-step-continue[hidden] {
    display: none;
}

/* Unpause variant — replaces Continue during settle-pause moment.
   Matches K12 simops-theme #pause-label.unpause-btn treatment: black stamp. */
.btn-step-continue.unpause {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-text);
}

.btn-step-continue.unpause:hover {
    background: var(--color-primary-hover);
}

.btn-step-continue.unpause:active {
    background: var(--color-primary-hover);
}

/* ── Completion screen buttons ── */
.btn-completion-primary,
.btn-completion-secondary {
    height: 30px;
    padding: 0 20px;
    border-radius: var(--completion-btn-radius);
    font-family: var(--font-family);
    font-size: 12px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    box-shadow: 3px 3px 0 rgba(0, 0, 0, 0.2);
    min-width: 160px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-completion-primary {
    background: var(--color-success);
    color: var(--color-white);
    border: 1px solid var(--color-success-border);
}

.btn-completion-primary:hover {
    background: var(--color-success-hover);
}

.btn-completion-secondary {
    background: var(--completion-btn-secondary-bg);
    color: var(--completion-btn-secondary-color);
    border: 1px solid var(--completion-btn-secondary-border);
}

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

/* ── Zoom-in stamp (ported from K12 simops-theme) ── */
.zoom-in-btn {
    position: fixed;
    bottom: 28px;
    left: 50%;
    transform: translate(-50%, 0) scale(0.7);
    opacity: 0;
    z-index: 70;

    background: var(--color-yellow-sticky);
    color: var(--color-text);
    border: 1.5px solid var(--color-primary);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-button);
    padding: 10px 22px;
    font-family: var(--font-family);
    font-weight: 800;
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: transform var(--transition-fast), opacity var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-fast);
}

.zoom-in-btn[hidden] {
    display: none;
}

.zoom-in-btn.visible {
    transform: translate(-50%, 0) scale(1);
    opacity: 1;
}

.zoom-in-btn:hover {
    background: var(--color-yellow-hover);
    box-shadow: var(--shadow-panel-hover);
}

.zoom-in-btn:active {
    transform: translate(-50%, 0) scale(0.97);
    box-shadow: 1px 1px 0 rgba(26, 26, 26, 0.3);
}

.zoom-in-btn.active {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
    box-shadow: 3px 3px 0 rgba(26, 26, 26, 0.3);
}

.zoom-in-btn.active:hover {
    background: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
}