/* assets/css/base.css */

/* --- CSS Reset & Box Sizing --- */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    /* Base size for rem calculations */
    scroll-padding-top: var(--site-header-total, 7rem);
    overflow-x: clip;
}

/* --- Global Body Styles --- */
body {
    font-family: var(--font-body);
    color: var(--clr-text-main);
    background-color: var(--clr-bg-main);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: clip;
}

/* --- Typography Defaults --- */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    color: var(--clr-primary);
    line-height: 1.2;
    font-weight: 600;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast);
}

ul {
    list-style: none;
}

/* --- Media Defaults --- */
img,
video {
    max-width: 100%;
    height: auto;
    display: block;
}

/* --- Layout Utilities --- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding-x);
}

.section-padding {
    padding: var(--spacing-section);
}

.text-center {
    text-align: center;
}

/* --- Background Utilities --- */
.bg-primary {
    background: var(--gradient-brand);
}

.text-light {
    color: var(--clr-text-light);
}

.bg-alt {
    background-color: var(--clr-bg-alt);
}

.dark-bg {
    background: var(--gradient-brand);
    color: var(--clr-text-light);
}

.dark-bg h2,
.dark-bg h3 {
    color: var(--clr-text-light);
}

/* Primary action buttons (used in header search, footer, product pages) */
.btn.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    text-decoration: none;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    background: var(--gradient-brand);
    color: var(--clr-text-light);
    transition: filter var(--duration-ui) var(--ease-premium), transform var(--duration-ui) var(--ease-premium);
}

.btn.btn-primary:hover {
    filter: brightness(1.08);
    color: var(--clr-text-light);
}

.btn.btn-primary:focus-visible {
    outline: 2px solid var(--clr-accent-brand);
    outline-offset: 2px;
}

/* Product card & detail actions */
.product-card-actions,
.product-detail-actions {
    display: grid;
    gap: 0.75rem;
}

.product-card-actions {
    margin-top: auto;
    grid-template-columns: 1fr 1fr;
    border-top: 1px solid var(--clr-border, #E2E8F0);
    padding-top: 1.5rem;
}

.product-detail-actions {
    grid-template-columns: 1fr;
}

.product-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    min-height: 2.85rem;
    padding: 0.72rem 1rem;
    font-family: var(--font-body);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    text-decoration: none;
    border-radius: 999px;
    border: 1px solid transparent;
    cursor: pointer;
    transition:
        background-color var(--duration-ui) var(--ease-premium),
        border-color var(--duration-ui) var(--ease-premium),
        color var(--duration-ui) var(--ease-premium),
        box-shadow var(--duration-ui) var(--ease-premium),
        transform var(--duration-ui) var(--ease-premium);
}

.product-btn-lg {
    min-height: 3.15rem;
    padding: 0.9rem 1.5rem;
    font-size: 0.78rem;
    width: 100%;
}

.product-btn:focus-visible {
    outline: 2px solid var(--clr-secondary);
    outline-offset: 2px;
}

.product-btn-outline {
    background: transparent;
    border-color: rgba(17, 41, 89, 0.22);
    color: var(--clr-primary);
}

.product-btn-outline:hover {
    background: rgba(17, 41, 89, 0.04);
    border-color: var(--clr-primary);
    transform: translateY(-1px);
}

.product-btn-primary {
    background: var(--gradient-brand);
    border-color: transparent;
    color: #fff;
    box-shadow: 0 10px 24px rgba(17, 41, 89, 0.18);
}

.product-btn-primary:hover {
    box-shadow: 0 14px 30px rgba(17, 41, 89, 0.24);
    transform: translateY(-1px);
    color: #fff;
}

.product-btn-primary svg {
    flex-shrink: 0;
    transition: transform var(--duration-ui) var(--ease-premium);
}

.product-btn-primary:hover svg {
    transform: translateX(2px);
}

/* --- Screen Reader Only (Accessibility) --- */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* --- Accessibility: consistent focus rings --- */
a:focus-visible,
.btn:focus-visible,
.btn-outline-dark:focus-visible,
.hs-btn:focus-visible {
    outline: 2px solid rgba(17, 41, 89, 0.65);
    outline-offset: 3px;
    border-radius: 10px;
}

/* --- Shared phone polish for cover/hero headers --- */
@media (max-width: 768px) {
    .directory-header,
    .history-title-block,
    .ingredients-header,
    .locator-header,
    .investor-header,
    .diff-title-block,
    .editorial-cover,
    .science-cover,
    .operations-cover,
    .research-header,
    .clinical-header,
    .careers-monolith,
    .facility-cover .container,
    .network-cover .container {
        padding-bottom: clamp(2.5rem, 6vw, 3.5rem) !important;
    }

    .directory-title,
    .history-headline,
    .ingredients-header h1,
    .locator-header h1,
    .investor-header h1,
    .diff-title-block h1,
    .editorial-cover h1,
    .science-cover h1,
    .operations-cover h1,
    .research-header h1,
    .clinical-header h1 {
        font-size: clamp(2rem, 9vw, 2.75rem) !important;
        letter-spacing: -0.02em !important;
    }

    .brutalist-submit,
    .cta-actions .btn,
    .cta-img-actions .btn {
        width: 100%;
        justify-content: center;
    }

    .form-actions {
        width: 100%;
    }

    .form-actions .brutalist-submit {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .section-padding {
        padding-top: clamp(2.5rem, 8vw, 3.5rem);
        padding-bottom: clamp(2.5rem, 8vw, 3.5rem);
    }
}

/* --- Accessibility: reduce motion preferences --- */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    /* Override JS inline reveal transitions/transforms */
    .pillar-card,
    .trust-assurance-panel,
    .trust-item,
    .overview-content,
    .section-header,
    .content-side,
    .media-side,
    .editorial-figure,
    .infra-text,
    .infra-visual,
    .leader-card,
    .news-card,
    .brand-statement-inner,
    .promise-content {
        transition: none !important;
        transform: none !important;
        opacity: 1 !important;
    }
}