/* ============================================
   BASE.CSS — reset + reusable layout primitives.
   Every page loads tokens.css first, then this.
   Page-specific CSS only handles variants.
   ============================================ */

/* ---------- Reset ---------- */

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-sans);
    font-size: var(--fs-body);
    line-height: var(--lh-relaxed);
    color: var(--ink-strong);
    background: var(--pure-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

img,
svg,
video {
    max-width: 100%;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

button {
    font: inherit;
    color: inherit;
    background: none;
    border: none;
    cursor: pointer;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    font-weight: var(--fw-semibold);
    line-height: var(--lh-snug);
    letter-spacing: var(--ls-tight);
    color: var(--ink-strong);
    font-variation-settings: var(--fraunces-heading);
}

h1 { font-size: var(--fs-display-lg); line-height: var(--lh-tight); letter-spacing: var(--ls-tighter); }
h2 { font-size: var(--fs-display-md); }
h3 { font-size: var(--fs-heading-lg); }
h4 { font-size: var(--fs-heading-md); }

p {
    font-size: var(--fs-body);
    line-height: var(--lh-relaxed);
    color: var(--ink-body);
}

/* ---------- Layout primitives ---------- */

.container {
    width: 100%;
    max-width: var(--container);
    margin-inline: auto;
    padding-inline: clamp(1.25rem, 5vw, 4rem);
}

.container--wide { max-width: var(--container-wide); }
.container--narrow { max-width: var(--container-narrow); }

.section {
    padding-block: var(--section-pad-y);
}

.section--sm { padding-block: var(--section-pad-y-sm); }
.section--tight { padding-block: clamp(2rem, 4vw, 3.5rem); }

.section--off-white { background: var(--off-white); }
.section--ghost { background: var(--ghost-white); }
.section--dark {
    background: var(--gradient-hero);
    color: var(--pure-white);
}
.section--dark h1,
.section--dark h2,
.section--dark h3,
.section--dark h4 { color: var(--pure-white); }
.section--dark p { color: var(--on-dark-body); }

.stack > * + * { margin-top: var(--stack, var(--space-md)); }
.stack--sm { --stack: var(--space-sm); }
.stack--lg { --stack: var(--space-lg); }
.stack--xl { --stack: var(--space-xl); }

.cluster {
    display: flex;
    flex-wrap: wrap;
    gap: var(--cluster, var(--space-sm));
    align-items: center;
}

.grid {
    display: grid;
    gap: var(--grid-gap, var(--space-lg));
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.grid--auto-md { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.grid--auto-lg { grid-template-columns: repeat(auto-fit, minmax(380px, 1fr)); }

@media (max-width: 1024px) {
    .grid--3,
    .grid--4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
    .grid--2,
    .grid--3,
    .grid--4 { grid-template-columns: 1fr; }
}

/* ---------- Typography primitives ---------- */

.eyebrow {
    display: inline-block;
    font-family: var(--font-sans);
    font-size: var(--fs-eyebrow);
    font-weight: var(--fw-semibold);
    letter-spacing: var(--ls-eyebrow);
    text-transform: uppercase;
    color: var(--primary-blue);
    margin-bottom: var(--space-sm);
}

.section--dark .eyebrow { color: var(--accent-blue); }

.display-title {
    font-family: var(--font-serif);
    font-size: var(--fs-display-xl);
    font-weight: var(--fw-regular);
    line-height: var(--lh-tight);
    letter-spacing: var(--ls-tighter);
    font-variation-settings: var(--fraunces-display);
    color: var(--ink-strong);
    margin-bottom: var(--space-lg);
}

.section--dark .display-title {
    background: var(--gradient-text-light);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

.section-title {
    font-family: var(--font-serif);
    font-size: var(--fs-display-md);
    font-weight: var(--fw-regular);
    line-height: var(--lh-snug);
    letter-spacing: var(--ls-tight);
    font-variation-settings: var(--fraunces-heading);
    color: var(--ink-strong);
    margin-bottom: var(--space-lg);
}

.section--dark .section-title { color: var(--pure-white); }

.lead {
    font-family: var(--font-sans);
    font-size: var(--fs-body-lg);
    line-height: var(--lh-relaxed);
    color: var(--ink-body);
    max-width: 62ch;
}

.section--dark .lead { color: var(--on-dark-body); }

.muted { color: var(--ink-muted); }

/* ---------- Buttons ---------- */

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2xs);
    padding: 0.9rem 1.75rem;
    font-family: var(--font-sans);
    font-size: var(--fs-body);
    font-weight: var(--fw-medium);
    line-height: 1;
    border-radius: var(--radius-full);
    border: 1.5px solid transparent;
    cursor: pointer;
    transition: transform var(--transition-fast),
                box-shadow var(--transition-base),
                background-color var(--transition-fast),
                border-color var(--transition-fast),
                color var(--transition-fast);
    white-space: nowrap;
}

.btn svg {
    transition: transform var(--transition-fast);
}

.btn:hover svg {
    transform: translateX(3px);
}

.btn-primary {
    background: var(--pure-white);
    color: var(--primary-blue);
    border-color: var(--pure-white);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(255, 255, 255, 0.22);
}

.section:not(.section--dark) .btn-primary {
    background: var(--primary-blue);
    color: var(--pure-white);
    border-color: var(--primary-blue);
}

.section:not(.section--dark) .btn-primary:hover {
    background: var(--accent-magenta);
    border-color: var(--accent-magenta);
    box-shadow: var(--shadow-brand);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.08);
    color: var(--pure-white);
    border-color: rgba(255, 255, 255, 0.32);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.18);
    border-color: rgba(255, 255, 255, 0.6);
}

.section:not(.section--dark) .btn-secondary {
    background: transparent;
    color: var(--primary-blue);
    border-color: var(--primary-blue);
}

.section:not(.section--dark) .btn-secondary:hover {
    background: var(--primary-blue);
    color: var(--pure-white);
}

.btn-ghost {
    background: transparent;
    color: var(--primary-blue);
    padding: 0.6rem 1.2rem;
    border-color: rgba(20, 30, 200, 0.28);
}

.btn-ghost:hover {
    background: var(--primary-blue);
    color: var(--pure-white);
    border-color: var(--primary-blue);
}

/* ---------- Cards ---------- */

.card {
    position: relative;
    padding: clamp(1.75rem, 3vw, 2.75rem);
    border-radius: var(--radius-2xl);
    background: var(--pure-white);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card--hover:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.card--flat {
    background: var(--ghost-white);
    border: var(--border-hairline);
}

/* Gradient border card. Brand band runs blue → magenta → orange. */
.card--gradient-border {
    background:
        linear-gradient(var(--pure-white), var(--pure-white)) padding-box,
        var(--gradient-brand-band) border-box;
    border: 2px solid transparent;
}

.card--on-dark {
    background: rgba(255, 255, 255, 0.06);
    border: var(--border-on-dark);
    backdrop-filter: blur(12px);
}

.card__eyebrow { color: var(--primary-blue); }

.card__title {
    font-family: var(--font-serif);
    font-size: var(--fs-heading-lg);
    font-weight: var(--fw-regular);
    line-height: var(--lh-snug);
    letter-spacing: var(--ls-tight);
    color: var(--ink-strong);
    margin-bottom: var(--space-sm);
    font-variation-settings: var(--fraunces-heading);
}

.card__description {
    font-size: var(--fs-body);
    line-height: var(--lh-relaxed);
    color: var(--ink-body);
    margin-bottom: var(--space-md);
}

.card__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background: var(--ghost-white);
    color: var(--primary-blue);
    margin-bottom: var(--space-md);
}

.card__link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2xs);
    color: var(--primary-blue);
    font-family: var(--font-sans);
    font-weight: var(--fw-medium);
    padding: 0.6rem 1.2rem;
    border: 1.5px solid rgba(20, 30, 200, 0.24);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.card__link:hover {
    background: var(--primary-blue);
    color: var(--pure-white);
    border-color: var(--primary-blue);
}

.card__link svg { transition: transform var(--transition-fast); }
.card__link:hover svg { transform: translateX(3px); }

/* ---------- Feature frame (textured background + product window) ---------- */

.feature-frame {
    position: relative;
    padding: clamp(2rem, 6vw, 5rem);
    border-radius: var(--radius-2xl);
    background:
        linear-gradient(135deg, rgba(11, 2, 21, 0.18), rgba(11, 2, 21, 0.55)),
        var(--texture, linear-gradient(135deg, #141EC8, #6E40DC 50%, #DC3CB4));
    background-size: cover;
    background-position: center;
    overflow: hidden;
    isolation: isolate;
}

.feature-frame__window {
    background: var(--pure-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
}

.feature-frame__window img,
.feature-frame__window video {
    width: 100%;
    height: auto;
    display: block;
}

/* ---------- Breadcrumb (single source) ---------- */

.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-2xs);
    font-family: var(--font-sans);
    font-size: var(--fs-small);
    color: var(--accent-blue);
    margin-bottom: var(--space-md);
}

.breadcrumb a {
    color: var(--accent-blue);
    transition: color var(--transition-fast);
}

.breadcrumb a:hover { color: var(--pure-white); }

.section:not(.section--dark) .breadcrumb {
    color: var(--ink-muted);
}

.section:not(.section--dark) .breadcrumb a { color: var(--ink-muted); }
.section:not(.section--dark) .breadcrumb a:hover { color: var(--primary-blue); }

/* ---------- Navigation ---------- */

.nav {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: var(--z-nav);
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: saturate(160%) blur(14px);
    -webkit-backdrop-filter: saturate(160%) blur(14px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.nav-container {
    max-width: var(--container);
    margin-inline: auto;
    padding: 0.55rem clamp(1rem, 3vw, 2rem);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
}

.nav-logo {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    line-height: 0;
    color: var(--ink-strong);
}

.nav-logo img {
    height: 36px;
    width: auto;
    display: block;
    border-radius: 8px;
}

.nav-logo__text {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    font-weight: var(--fw-semibold);
    letter-spacing: var(--ls-tight);
    font-variation-settings: var(--fraunces-text);
    color: var(--ink-strong);
    line-height: 1;
}

.nav-menu {
    display: flex;
    gap: 1.35rem;
    align-items: center;
    margin-left: auto;
}

.nav-menu a {
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: var(--fw-medium);
    color: var(--ink-strong);
    transition: color var(--transition-fast);
    position: relative;
    padding: 0.25rem 0;
}

.nav-menu a:hover {
    color: var(--primary-blue);
}

.nav-menu a.active {
    color: var(--primary-blue);
    font-weight: var(--fw-semibold);
}

.nav-menu a.active::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -2px;
    height: 2px;
    background: var(--gradient-brand-band);
    border-radius: 2px;
}

.nav-cta {
    font-family: var(--font-sans);
    font-size: 0.825rem;
    font-weight: var(--fw-medium);
    color: var(--pure-white);
    background: var(--primary-blue);
    border: 1.5px solid var(--primary-blue);
    padding: 0.4rem 0.95rem;
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.nav-cta:hover {
    background: var(--accent-magenta);
    border-color: var(--accent-magenta);
    color: var(--pure-white);
}

/* Adds breathing room under the fixed nav so first section is not clipped */
.has-fixed-nav main,
.has-fixed-nav > section:first-of-type {
    padding-top: 64px;
}

@media (max-width: 768px) {
    .nav-menu { display: none; }
}

/* ---------- Footer ---------- */

.footer {
    background: var(--off-white);
    padding: clamp(3rem, 6vw, 5rem) 0 2rem;
}

.footer-container {
    max-width: var(--container-wide);
    margin-inline: auto;
    padding-inline: clamp(1.25rem, 5vw, 4rem);
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.footer-logo {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: var(--fw-semibold);
    letter-spacing: var(--ls-tight);
    color: var(--primary-blue);
    font-variation-settings: var(--fraunces-heading);
}

.footer-tagline {
    font-family: var(--font-sans);
    font-size: var(--fs-small);
    color: var(--ink-muted);
    margin-top: var(--space-2xs);
    max-width: 28ch;
}

.footer-title {
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    font-weight: var(--fw-semibold);
    letter-spacing: var(--ls-eyebrow);
    text-transform: uppercase;
    color: var(--primary-blue);
    margin-bottom: var(--space-sm);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.footer-links a {
    font-family: var(--font-sans);
    font-size: 0.95rem;
    color: var(--ink-body);
    transition: color var(--transition-fast);
}

.footer-links a:hover { color: var(--primary-blue); }

.footer-social {
    display: flex;
    gap: var(--space-sm);
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary-blue);
    color: var(--pure-white);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.social-link:hover {
    background: var(--accent-magenta);
    transform: translateY(-2px);
}

.footer-bottom {
    max-width: var(--container-wide);
    margin-inline: auto;
    padding: 2rem clamp(1.25rem, 5vw, 4rem) 0;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-md);
}

.footer-copyright {
    font-family: var(--font-sans);
    font-size: var(--fs-small);
    color: var(--ink-muted);
}

.footer-legal {
    display: flex;
    gap: var(--space-lg);
}

.footer-legal a {
    font-family: var(--font-sans);
    font-size: var(--fs-small);
    color: var(--ink-muted);
    transition: color var(--transition-fast);
}

.footer-legal a:hover { color: var(--primary-blue); }

@media (max-width: 1024px) {
    .footer-container { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
    .footer-container { grid-template-columns: 1fr; gap: var(--space-lg); }
    .footer-bottom { flex-direction: column; text-align: center; }
}

/* ---------- Hero gradient utilities ---------- */

.hero-gradient {
    background: var(--gradient-hero);
    color: var(--pure-white);
}

.text-gradient-light {
    background: var(--gradient-text-light);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}