/* 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 */
}

/* --- 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;
}

/* --- 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;
}

/* --- 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;
}

/* --- 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;
    }
}