/* Canonical Nannovative button language for explicit public/admin components. */
:root {
    --nv-button-height: clamp(48px, 5.6dvh, 62px);
    --nv-button-padding: 12px clamp(20px, 2vw, 30px);
    --nv-button-font-size: clamp(15px, 1.05vw, 18px);
}

.nv-btn,
.video-entry-button,
.lab-hero-action,
.portrait-dialog .primary-button,
.portrait-dialog .secondary-button,
.portrait-dialog .nv-flow-button,
.admin-shell .button,
.admin-actions-row > button,
.admin-confirm-dialog__panel > button {
    position: relative;
    isolation: isolate;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: var(--nv-button-height);
    height: auto;
    padding: var(--nv-button-padding);
    overflow: hidden;
    border-radius: 0;
    font-family: var(--nv-font-body, "Space Grotesk", Arial, sans-serif);
    font-size: var(--nv-button-font-size);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: 0;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    transition:
        background var(--nv-transition, 300ms ease),
        color var(--nv-transition, 300ms ease),
        border-color var(--nv-transition, 300ms ease),
        transform var(--nv-transition, 300ms ease);
}

.nv-btn-primary,
.video-entry-button:not(.video-entry-button-secondary),
.lab-hero-action-primary,
.portrait-dialog .primary-button,
.admin-shell .button:not(.secondary),
.admin-actions-row > button:not(.secondary),
.admin-confirm-dialog__panel > button:not(.secondary) {
    border: 1px solid var(--nv-accent, #0ABAB5);
    background: var(--nv-accent, #0ABAB5);
    color: #001012;
    box-shadow: none;
}

.nv-btn-secondary,
.video-entry-button-secondary,
.lab-hero-action-secondary,
.portrait-dialog .secondary-button,
.portrait-dialog .nv-flow-button-secondary,
.admin-shell .button.secondary,
.admin-actions-row > button.secondary,
.admin-confirm-dialog__panel > button.secondary {
    border: 1px solid rgba(255, 255, 255, .34);
    background: transparent;
    color: var(--nv-text, #fff);
    box-shadow: none;
    backdrop-filter: none;
}

.nv-btn:hover,
.video-entry-button:hover,
.lab-hero-action:hover,
.portrait-dialog .primary-button:hover:not(:disabled),
.portrait-dialog .secondary-button:hover:not(:disabled),
.portrait-dialog .nv-flow-button:hover:not(:disabled),
.admin-shell .button:hover,
.admin-actions-row > button:hover:not(:disabled),
.admin-confirm-dialog__panel > button:hover:not(:disabled) {
    transform: translateY(-2px);
}

.nv-btn-primary:hover,
.video-entry-button:not(.video-entry-button-secondary):hover,
.lab-hero-action-primary:hover,
.portrait-dialog .primary-button:hover:not(:disabled),
.admin-shell .button:not(.secondary):hover,
.admin-actions-row > button:not(.secondary):hover:not(:disabled),
.admin-confirm-dialog__panel > button:not(.secondary):hover:not(:disabled) {
    border-color: var(--nv-accent, #0ABAB5);
    background: transparent;
    color: var(--nv-accent, #0ABAB5);
}

.nv-btn-secondary:hover,
.video-entry-button-secondary:hover,
.lab-hero-action-secondary:hover,
.portrait-dialog .secondary-button:hover:not(:disabled),
.portrait-dialog .nv-flow-button-secondary:hover:not(:disabled),
.admin-shell .button.secondary:hover,
.admin-actions-row > button.secondary:hover:not(:disabled),
.admin-confirm-dialog__panel > button.secondary:hover:not(:disabled) {
    border-color: #fff;
    background: #fff;
    color: #050505;
}

.nv-btn:active,
.video-entry-button:active,
.lab-hero-action:active,
.portrait-dialog .primary-button:active:not(:disabled),
.portrait-dialog .secondary-button:active:not(:disabled),
.portrait-dialog .nv-flow-button:active:not(:disabled),
.admin-actions-row > button:active:not(:disabled),
.admin-confirm-dialog__panel > button:active:not(:disabled) {
    transform: translateY(1px);
    transition-duration: 80ms;
}

.nv-btn:focus-visible,
.video-entry-button:focus-visible,
.lab-hero-action:focus-visible,
.portrait-dialog .primary-button:focus-visible,
.portrait-dialog .secondary-button:focus-visible,
.portrait-dialog .nv-flow-button:focus-visible,
.admin-shell .button:focus-visible,
.admin-actions-row > button:focus-visible,
.admin-confirm-dialog__panel > button:focus-visible {
    outline: 2px solid var(--nv-accent, #0ABAB5);
    outline-offset: 3px;
}

.nv-btn:disabled,
.portrait-dialog .primary-button:disabled,
.portrait-dialog .secondary-button:disabled,
.portrait-dialog .nv-flow-button:disabled,
.admin-actions-row > button:disabled,
.admin-confirm-dialog__panel > button:disabled {
    cursor: not-allowed;
    opacity: .48;
    transform: none;
}

/* Text and icon controls are intentionally not promoted to CTA geometry. */
.text-button,
.icon-button,
.lab-hero-phone-hotspot {
    min-height: 0;
    padding: 0;
    overflow: visible;
    border: 0;
    background: transparent;
    box-shadow: none;
}

.text-button {
    color: var(--nv-text-soft, rgba(255, 255, 255, .78));
    font-family: var(--nv-font-body, "Space Grotesk", Arial, sans-serif);
    text-decoration: underline;
    text-underline-offset: 4px;
}

.text-button:hover,
.text-button:focus-visible,
.icon-button:hover,
.icon-button:focus-visible {
    color: var(--nv-accent, #0ABAB5);
    outline: none;
}

.lab-hero-phone-hotspot,
.lab-hero-phone-hotspot:hover,
.lab-hero-phone-hotspot:focus-visible {
    border: 0;
    background: transparent;
    box-shadow: none;
    color: inherit;
    transform: none;
}

/* Quiz controls share color and focus rules without inheriting hero sizing. */
.quiz-option {
    display: flex;
    align-items: center;
    width: 100%;
    min-width: 0;
    min-height: 44px;
    height: auto;
    padding: 10px 14px;
    border: 1px solid var(--nv-border, rgba(255, 255, 255, .16));
    border-radius: 0;
    background: transparent;
    color: var(--nv-text, #fff);
    font-family: var(--nv-font-body, "Space Grotesk", Arial, sans-serif);
    font-size: clamp(13px, .95vw, 16px);
    line-height: 1.25;
    text-align: left;
    cursor: pointer;
    transition: border-color 220ms ease, background 220ms ease, color 220ms ease;
}

.quiz-option:hover,
.quiz-option:focus-visible {
    border-color: var(--nv-border-strong, rgba(255, 255, 255, .28));
    outline: none;
}

.quiz-option.is-selected,
.quiz-option[aria-pressed="true"] {
    border-color: var(--nv-accent, #0ABAB5);
    background: rgba(10, 186, 181, .12);
    color: #fff;
}

.quiz-nav-button.nv-flow-button {
    width: auto;
    min-width: 112px;
    min-height: 42px;
    padding: 8px 16px;
    font-size: 13px;
}

.quiz-nav-button.is-done,
.quiz-nav-button.is-done:disabled {
    opacity: 1;
    cursor: default;
    border-color: var(--nv-accent, #0ABAB5);
    background: var(--nv-accent, #0ABAB5);
    color: #001012;
    transform: none;
}

@media (max-width: 768px) {
    :root {
        --nv-button-height: 48px;
        --nv-button-padding: 10px 16px;
        --nv-button-font-size: 15px;
    }

    .quiz-option {
        min-height: 40px;
        padding: 8px 10px;
        font-size: 13px;
    }

    .quiz-nav-button.nv-flow-button {
        min-width: 96px;
        min-height: 38px;
        padding: 7px 12px;
        font-size: 12px;
    }
}