/* KeyStamp — landing interaction layer: 3D tilt, scroll reveals, animated flows.
   On-brand: soft powder-blue glow, no neon. Transforms + opacity only (GPU-friendly). */

/* ============ scroll reveal ============ */
.reveal {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity .7s cubic-bezier(.16, 1, .3, 1), transform .7s cubic-bezier(.16, 1, .3, 1);
    will-change: opacity, transform;
}

.reveal.in {
    opacity: 1;
    transform: none;
}

.reveal[data-d="1"] {
    transition-delay: .07s;
}

.reveal[data-d="2"] {
    transition-delay: .14s;
}

.reveal[data-d="3"] {
    transition-delay: .21s;
}

.reveal[data-d="4"] {
    transition-delay: .28s;
}

.reveal[data-d="5"] {
    transition-delay: .35s;
}

/* ============ hero entrance (staggered, plays on load) ============ */
.h-anim {
    opacity: 0;
    transform: translateY(18px);
    animation: heroUp .7s cubic-bezier(.16, 1, .3, 1) forwards;
}

.h-anim.d1 {
    animation-delay: .05s;
}

.h-anim.d2 {
    animation-delay: .16s;
}

.h-anim.d3 {
    animation-delay: .28s;
}

.h-anim.d4 {
    animation-delay: .4s;
}

@keyframes heroUp {
    to {
        opacity: 1;
        transform: none;
    }
}

/* ============ animated hero background ============ */
.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
    z-index: 0;
}

.hero-bg .grid {
    position: absolute;
    inset: -2px;
    background-image: linear-gradient(var(--ks-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--ks-line) 1px, transparent 1px);
    background-size: 46px 46px;
    opacity: .35;
    mask-image: radial-gradient(circle at 50% 32%, #000 0%, transparent 68%);
    -webkit-mask-image: radial-gradient(circle at 50% 32%, #000 0%, transparent 68%);
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: .5;
    animation: float 14s ease-in-out infinite;
}

.orb.a {
    width: 360px;
    height: 360px;
    background: radial-gradient(circle, rgba(37, 99, 255, .45), transparent 70%);
    top: -90px;
    left: -60px;
}

.orb.b {
    width: 420px;
    height: 420px;
    background: radial-gradient(circle, rgba(34, 211, 238, .28), transparent 70%);
    top: -120px;
    right: -90px;
    animation-delay: -5s;
}

.orb.c {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(37, 99, 255, .3), transparent 70%);
    bottom: -120px;
    left: 40%;
    animation-delay: -9s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(24px, -18px) scale(1.05);
    }
    66% {
        transform: translate(-18px, 14px) scale(.97);
    }
}

/* ============ 3D tilt primitives ============ */
.tilt {
    transform-style: preserve-3d;
    transition: transform .6s cubic-bezier(.22, 1, .36, 1), box-shadow .4s ease;
    will-change: transform;
}

.tilt-layer {
    transition: transform .6s cubic-bezier(.22, 1, .36, 1);
    transform-style: preserve-3d;
}

/* hero dashboard mock 3D */
.mock.dash3d {
    transform: perspective(1400px) rotateX(7deg) rotateY(-9deg);
    transition: transform .6s cubic-bezier(.22, 1, .36, 1), box-shadow .5s ease;
    transform-style: preserve-3d;
    will-change: transform;
}

.mock.dash3d .lift-1 {
    transform: translateZ(28px);
    transition: transform .5s cubic-bezier(.22, 1, .36, 1);
}

.mock.dash3d .lift-2 {
    transform: translateZ(48px);
    transition: transform .5s cubic-bezier(.22, 1, .36, 1);
}

.mock.dash3d .lift-3 {
    transform: translateZ(70px);
    transition: transform .5s cubic-bezier(.22, 1, .36, 1);
}

.mock.dash3d:hover .lift-2 {
    transform: translateZ(58px);
}

.mock.dash3d:hover .lift-3 {
    transform: translateZ(88px) translateY(-4px);
}

.mock-glow {
    position: absolute;
    inset: -1px;
    border-radius: inherit;
    pointer-events: none;
    opacity: 0;
    transition: opacity .45s ease;
    box-shadow: 0 0 0 1px rgba(37, 99, 255, .35), 0 30px 90px rgba(37, 99, 255, .28);
}

.dash3d:hover .mock-glow {
    opacity: 1;
}

/* connected badge pulse */
.pulse-badge {
    position: relative;
}

.pulse-badge::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    box-shadow: 0 0 0 0 rgba(79, 154, 106, .5);
    animation: pulseRing 3.4s ease-out infinite;
}

@keyframes pulseRing {
    0% {
        box-shadow: 0 0 0 0 rgba(79, 154, 106, .5);
    }
    18% {
        box-shadow: 0 0 0 8px rgba(79, 154, 106, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(79, 154, 106, 0);
    }
}

/* ============ feature card 3D + spotlight ============ */
.feat.card3d {
    position: relative;
    transform-style: preserve-3d;
    transition: transform .4s cubic-bezier(.22, 1, .36, 1), box-shadow .4s ease, border-color .4s ease;
    will-change: transform;
    overflow: hidden;
}

.feat.card3d .spot {
    position: absolute;
    inset: 0;
    border-radius: inherit;
    opacity: 0;
    transition: opacity .35s ease;
    pointer-events: none;
    background: radial-gradient(220px circle at var(--mx, 50%) var(--my, 50%), rgba(37, 99, 255, .16), transparent 60%);
}

.feat.card3d:hover .spot {
    opacity: 1;
}

.feat.card3d:hover {
    border-color: rgba(37, 99, 255, .5);
    box-shadow: 0 22px 60px rgba(15, 23, 42, .13);
}

.feat.card3d .ic {
    transition: transform .4s cubic-bezier(.22, 1, .36, 1);
    transform: translateZ(0);
}

.feat.card3d:hover .ic {
    transform: translateZ(34px) translateY(-3px);
}

.feat.card3d h3 {
    transition: transform .4s cubic-bezier(.22, 1, .36, 1);
}

.feat.card3d:hover h3 {
    transform: translateZ(20px);
}

.feat.card3d p {
    transition: transform .4s cubic-bezier(.22, 1, .36, 1);
}

.feat.card3d:hover p {
    transform: translateZ(10px);
}

/* ============ button micro-interactions ============ */
.ks-btn.lg {
    transition: transform .2s cubic-bezier(.22, 1, .36, 1), box-shadow .25s ease, background .2s ease;
}

.ks-btn.lg:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 30px rgba(37, 99, 255, .26);
}

.ks-btn.lg:active {
    transform: translateY(0);
}

.ks-btn.lg .ks-icon {
    transition: transform .25s cubic-bezier(.22, 1, .36, 1);
}

.ks-btn.lg:hover .ks-icon {
    transform: translateX(4px);
}

.ks-btn.secondary.lg:hover {
    border-color: var(--ks-primary);
    color: var(--ks-primary-deep);
}

/* ============ glass header scroll state ============ */
.lp-nav {
    transition: background .35s ease, box-shadow .35s ease, border-color .35s ease;
    border-bottom: 1px solid transparent;
    background: rgba(246, 243, 236, .55);
}

.lp-nav.scrolled {
    background: rgba(246, 243, 236, .9);
    border-bottom-color: var(--ks-line);
    box-shadow: 0 4px 24px rgba(15, 23, 42, .06);
}

.lp-nav.scrolled .lp-nav-in {
    padding-top: .7rem;
    padding-bottom: .7rem;
}

.lp-nav-in {
    transition: padding .35s ease;
}

.lp-links a {
    position: relative;
}

.lp-links a::after {
    content: "";
    position: absolute;
    left: .8rem;
    right: .8rem;
    bottom: .28rem;
    height: 2px;
    border-radius: 2px;
    background: var(--ks-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .3s cubic-bezier(.22, 1, .36, 1);
}

.lp-links a:hover::after {
    transform: scaleX(1);
}

.logo-mark {
    transition: transform .25s cubic-bezier(.22, 1, .36, 1);
}

.lp-nav-in .logo-mark:hover {
    transform: translateY(-1px);
}

.lp-nav-in .logo-mark:hover .logo-icon {
    box-shadow: 0 8px 20px rgba(37, 99, 255, .3);
}

.logo-icon {
    transition: box-shadow .3s ease;
}

/* ============ problem cards scatter -> align ============ */
.prob-item {
    transition: transform .7s cubic-bezier(.16, 1, .3, 1), opacity .7s ease, box-shadow .3s ease;
}

.prob-list.scatter .prob-item {
    opacity: 0;
}

.prob-list.scatter .prob-item:nth-child(1) {
    transform: translate(-26px, 16px) rotate(-4deg);
}

.prob-list.scatter .prob-item:nth-child(2) {
    transform: translate(22px, 22px) rotate(3deg);
}

.prob-list.scatter .prob-item:nth-child(3) {
    transform: translate(-18px, 30px) rotate(-2.5deg);
}

.prob-list.scatter .prob-item:nth-child(4) {
    transform: translate(20px, 36px) rotate(3.5deg);
}

.prob-list.aligned .prob-item {
    opacity: 1;
    transform: none;
}

.prob-item:hover {
    transform: translateY(-3px) rotate(-.5deg);
    box-shadow: 0 14px 34px rgba(15, 23, 42, .1);
}

.resolved-chip {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    margin-top: 1.2rem;
    border: 1px solid var(--ks-success-line);
    background: var(--ks-success-bg);
    color: var(--ks-success);
    border-radius: var(--ks-r-pill);
    padding: .45rem .85rem;
    font-size: .78rem;
    font-weight: 700;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity .6s ease .35s, transform .6s ease .35s;
}

.prob-list.aligned ~ * .resolved-chip, .resolved-chip.show {
    opacity: 1;
    transform: none;
}

/* ============ how it works flow line ============ */
.flow-track {
    position: relative;
}

.flow-line {
    position: absolute;
    top: 38px;
    left: 12%;
    right: 12%;
    height: 2px;
    background: var(--ks-line);
    border-radius: 2px;
    overflow: visible;
    z-index: 0;
}

.flow-line i {
    position: absolute;
    inset: 0;
    width: 0;
    background: linear-gradient(90deg, var(--ks-primary-mid), var(--ks-primary));
    border-radius: 2px;
    transition: width 1.2s cubic-bezier(.22, 1, .36, 1) .2s;
}

.flow-track.in .flow-line i {
    width: 100%;
}

.flow-dot {
    position: absolute;
    top: -3px;
    left: 0;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--ks-primary);
    box-shadow: 0 0 0 4px rgba(37, 99, 255, .18);
    opacity: 0;
}

.flow-track.in .flow-dot {
    animation: dotRun 1.4s cubic-bezier(.22, 1, .36, 1) .2s forwards;
}

@keyframes dotRun {
    0% {
        left: 0;
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        left: 100%;
        opacity: 0;
    }
}

.step {
    position: relative;
    z-index: 1;
    transition: transform .35s cubic-bezier(.22, 1, .36, 1), box-shadow .35s ease;
    transform-style: preserve-3d;
}

.step:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 50px rgba(15, 23, 42, .12);
}

.step .n {
    transition: transform .35s cubic-bezier(.22, 1, .36, 1);
}

.step:hover .n {
    transform: translateZ(24px) scale(1.06);
}

.step .node-glow {
    position: absolute;
    top: 30px;
    left: 50%;
    width: 16px;
    height: 16px;
    margin-left: -8px;
    border-radius: 50%;
    background: var(--ks-primary);
    opacity: 0;
}

/* ============ zoho sync flow ============ */
.sync-flow {
    position: relative;
    display: grid;
    gap: .7rem;
    padding: .3rem;
    border-radius: var(--ks-r-xl);
    transition: box-shadow .4s ease;
}

.sync-flow:hover {
    box-shadow: 0 0 0 1px rgba(37, 99, 255, .2), 0 20px 50px rgba(37, 99, 255, .12);
}

.lc-step {
    transition: transform .35s cubic-bezier(.22, 1, .36, 1), box-shadow .3s ease, border-color .3s ease;
    position: relative;
    overflow: hidden;
}

.sync-flow:hover .lc-step {
    transform: translateX(3px);
}

.lc-step .sweep {
    position: absolute;
    inset: 0;
    opacity: 0;
    background: linear-gradient(90deg, transparent, rgba(37, 99, 255, .12), transparent);
}

.sync-flow.run .lc-step .sweep {
    animation: sweep 2.4s linear infinite;
}

.sync-flow.run .lc-step:nth-child(2) .sweep {
    animation-delay: .3s;
}

.sync-flow.run .lc-step:nth-child(3) .sweep {
    animation-delay: .6s;
}

.sync-flow.run .lc-step:nth-child(4) .sweep {
    animation-delay: .9s;
}

.sync-flow.run .lc-step:nth-child(5) .sweep {
    animation-delay: 1.2s;
}

@keyframes sweep {
    0% {
        opacity: 0;
        transform: translateX(-60%);
    }
    30% {
        opacity: 1;
    }
    60% {
        opacity: 0;
        transform: translateX(60%);
    }
    100% {
        opacity: 0;
        transform: translateX(60%);
    }
}

.sync-flow:hover .lc-step.last .d {
    box-shadow: 0 0 0 4px rgba(79, 154, 106, .18);
}

/* ============ signature preview showcase ============ */
.showcase {
    position: relative;
    display: grid;
    grid-template-columns: 1.1fr .9fr;
    gap: 3rem;
    align-items: center;
}

.email-card {
    position: relative;
    perspective: 1400px;
}

.email-inner {
    background: #fff;
    border: 1px solid var(--ks-line);
    border-radius: var(--ks-r-xl);
    box-shadow: var(--ks-shadow-card);
    overflow: hidden;
    transition: transform .6s cubic-bezier(.22, 1, .36, 1), box-shadow .5s ease;
    transform-style: preserve-3d;
    will-change: transform;
}

.email-head {
    padding: .9rem 1.2rem;
    border-bottom: 1px solid var(--ks-line);
    background: var(--ks-soft);
    display: grid;
    gap: .25rem;
}

.email-meta {
    font-size: .76rem;
    color: var(--ks-fg2);
    font-weight: 600;
}

.email-body {
    padding: 1.4rem 1.4rem 1.6rem;
    font-family: Arial, sans-serif;
    color: var(--ks-fg2);
    font-size: .82rem;
    line-height: 1.7;
}

.sig-block {
    margin-top: 1rem;
    transition: transform .6s cubic-bezier(.22, 1, .36, 1);
    transform: translateZ(0);
}

.email-card:hover .email-inner {
    transform: rotateX(3deg) rotateY(-4deg);
    box-shadow: var(--ks-shadow-pop);
}

.email-card:hover .sig-block {
    transform: translateZ(40px);
}

.chip-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
}

.vchip {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    border: 1px solid var(--ks-primary-soft);
    background: var(--ks-primary-soft);
    color: var(--ks-primary-deep);
    border-radius: var(--ks-r-pill);
    padding: .35rem .7rem;
    font-family: var(--ks-mono);
    font-size: .74rem;
    font-weight: 700;
    cursor: default;
    transition: transform .25s cubic-bezier(.22, 1, .36, 1), box-shadow .25s ease, background .2s ease;
}

.vchip:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(37, 99, 255, .22);
    background: #fff;
}

.vchip.copied {
    background: var(--ks-success-bg);
    border-color: var(--ks-success-line);
    color: var(--ks-success);
}

/* ============ CTA tilt panel ============ */
.cta-band {
    position: relative;
    transform-style: preserve-3d;
    transition: transform .5s cubic-bezier(.22, 1, .36, 1), box-shadow .5s ease;
    will-change: transform;
    overflow: hidden;
}

.cta-band .cta-orb {
    position: absolute;
    width: 280px;
    height: 280px;
    border-radius: 50%;
    filter: blur(50px);
    background: radial-gradient(circle, rgba(37, 99, 255, .5), transparent 70%);
    top: -80px;
    right: 10%;
    transition: transform .6s ease;
    pointer-events: none;
}

.cta-band:hover .cta-orb {
    transform: translate(-20px, 16px) scale(1.1);
}

.cta-band .cta-grid {
    position: absolute;
    inset: 0;
    pointer-events: none;
    opacity: .15;
    background-image: linear-gradient(rgba(255, 255, 255, .25) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .25) 1px, transparent 1px);
    background-size: 40px 40px;
    mask-image: radial-gradient(circle at 70% 20%, #000, transparent 70%);
    -webkit-mask-image: radial-gradient(circle at 70% 20%, #000, transparent 70%);
}

.cta-band > * {
    position: relative;
    z-index: 1;
}

.ks-btn.onlight, .ks-btn.ghostlight {
    transition: transform .2s cubic-bezier(.22, 1, .36, 1), box-shadow .25s ease, background .2s ease;
}

.ks-btn.onlight:hover, .ks-btn.ghostlight:hover {
    transform: translateY(-2px);
}

.ks-btn.onlight:hover {
    box-shadow: 0 12px 30px rgba(0, 0, 0, .18);
}

@media (max-width: 900px) {
    .showcase {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .flow-line, .flow-dot {
        display: none;
    }
}

/* ============ signature showcase: chip -> field highlight ============ */
.sig-block [data-field] {
    border-radius: 4px;
    transition: background .25s ease, box-shadow .25s ease, color .25s ease;
    padding: 0 2px;
}

.sig-block [data-field].hl {
    background: var(--ks-primary-soft);
    box-shadow: 0 0 0 2px var(--ks-primary-soft), 0 0 0 3px rgba(37, 99, 255, .45);
}

.logo-field {
    transition: box-shadow .25s ease, transform .25s ease;
}

.logo-field.hl {
    box-shadow: 0 0 0 3px rgba(37, 99, 255, .5);
    transform: translateY(-1px);
}

.vchip.linked {
    background: #fff;
    border-color: var(--ks-primary);
    box-shadow: 0 8px 20px rgba(37, 99, 255, .22);
    transform: translateY(-2px);
}

/* ============ role-based access cards ============ */
.role-deck {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.1rem;
}

.rcard {
    position: relative;
    border: 1px solid var(--ks-line);
    background: var(--ks-surface);
    border-radius: var(--ks-r-xl);
    padding: 1.4rem;
    box-shadow: var(--ks-shadow-card);
    overflow: hidden;
    transition: transform .35s cubic-bezier(.22, 1, .36, 1), box-shadow .35s ease, border-color .35s ease;
    transform-style: preserve-3d;
}

.rcard::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--ks-gradient-strong);
    opacity: .85;
}

.rcard:hover {
    transform: translateY(-8px);
    box-shadow: 0 24px 60px rgba(15, 23, 42, .14);
    border-color: rgba(37, 99, 255, .45);
}

.rcard .rc-ic {
    width: 46px;
    height: 46px;
    border-radius: var(--ks-r-lg);
    background: var(--ks-primary-soft);
    color: var(--ks-primary-deep);
    display: grid;
    place-items: center;
    transition: transform .35s cubic-bezier(.22, 1, .36, 1);
}

.rcard:hover .rc-ic {
    transform: translateZ(26px);
}

.rcard h3 {
    font-size: 1.02rem;
    font-weight: 800;
    margin: 1rem 0 0;
}

.rcard .rc-scope {
    font-size: .76rem;
    font-weight: 700;
    color: var(--ks-primary-deep);
    margin-top: .2rem;
}

.rcard p {
    font-size: .82rem;
    color: var(--ks-fg2);
    line-height: 1.55;
    margin: .55rem 0 0;
    font-weight: 500;
}

.perm-chips {
    display: flex;
    flex-wrap: wrap;
    gap: .35rem;
    margin-top: .9rem;
}

.perm-chip {
    display: inline-flex;
    align-items: center;
    gap: .25rem;
    border: 1px solid var(--ks-line);
    background: var(--ks-soft);
    border-radius: var(--ks-r-pill);
    padding: .2rem .55rem;
    font-size: .68rem;
    font-weight: 700;
    color: var(--ks-fg2);
}

.perm-chip .ks-icon {
    width: 11px;
    height: 11px;
    color: var(--ks-success);
}

@media (max-width: 980px) {
    .role-deck {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 560px) {
    .role-deck {
        grid-template-columns: 1fr;
    }
}

/* ============ security (dark) section ============ */
.sec-dark {
    background: var(--ks-gradient-dark);
    color: #fff;
    border-top: 0;
    position: relative;
    overflow: hidden;
}

.sec-dark .sd-grid {
    position: absolute;
    inset: 0;
    pointer-events: none;
    opacity: .12;
    background-image: linear-gradient(rgba(255, 255, 255, .3) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .3) 1px, transparent 1px);
    background-size: 44px 44px;
    mask-image: radial-gradient(circle at 50% 0%, #000, transparent 70%);
    -webkit-mask-image: radial-gradient(circle at 50% 0%, #000, transparent 70%);
}

.sec-dark .sd-orb {
    position: absolute;
    width: 360px;
    height: 360px;
    border-radius: 50%;
    filter: blur(70px);
    background: radial-gradient(circle, rgba(37, 99, 255, .4), transparent 70%);
    top: -120px;
    left: 8%;
    pointer-events: none;
}

.sec-dark .eyebrow-mini {
    color: var(--ks-primary-mid);
}

.sec-dark .sec-head h2 {
    color: #fff;
}

.sec-dark .sec-head p {
    color: rgba(255, 255, 255, .72);
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    position: relative;
    z-index: 1;
}

.tcard {
    border: 1px solid rgba(255, 255, 255, .14);
    background: rgba(255, 255, 255, .06);
    backdrop-filter: blur(8px);
    border-radius: var(--ks-r-lg);
    padding: 1.2rem;
    transition: transform .35s cubic-bezier(.22, 1, .36, 1), background .3s ease, border-color .3s ease;
}

.tcard:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, .1);
    border-color: rgba(255, 255, 255, .26);
}

.tcard .tc-ic {
    width: 40px;
    height: 40px;
    border-radius: var(--ks-r-md);
    background: rgba(255, 255, 255, .12);
    color: #fff;
    display: grid;
    place-items: center;
}

.tcard h4 {
    font-size: .95rem;
    font-weight: 800;
    margin: .85rem 0 0;
}

.tcard p {
    font-size: .8rem;
    color: rgba(255, 255, 255, .7);
    line-height: 1.55;
    margin: .4rem 0 0;
    font-weight: 500;
}

.sec-hero-stat {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
    margin-top: 2rem;
    position: relative;
    z-index: 1;
}

.sec-hero-stat > div {
    color: #fff;
}

.sec-hero-stat .v {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -.02em;
}

.sec-hero-stat .l {
    font-size: .76rem;
    color: rgba(255, 255, 255, .65);
    font-weight: 600;
    margin-top: .15rem;
}

@media (max-width: 860px) {
    .trust-grid {
        grid-template-columns: 1fr;
    }
}

/* ============ hero futuristic email-signature visual ============ */
.hsig-card {
    padding: 0 !important;
    overflow: visible !important;
    background: transparent !important;
    border: 0 !important;
    box-shadow: none !important;
}

.hsig-inner {
    position: relative;
    z-index: 2;
    background: #fff;
    border: 1px solid var(--ks-line);
    border-radius: var(--ks-r-xl);
    padding: 1.7rem 1.6rem;
    box-shadow: var(--ks-shadow-pop);
    overflow: hidden;
}

.hsig-grid {
    position: absolute;
    inset: 0;
    border-radius: inherit;
    opacity: .55;
    pointer-events: none;
    background-image: linear-gradient(var(--ks-line) 1px, transparent 1px), linear-gradient(90deg, var(--ks-line) 1px, transparent 1px);
    background-size: 26px 26px;
    mask-image: radial-gradient(circle at 28% -10%, #000, transparent 62%);
    -webkit-mask-image: radial-gradient(circle at 28% -10%, #000, transparent 62%);
}

.hsig-inner > * {
    position: relative;
    z-index: 1;
}

.hsig-eyebrow {
    font-size: .6rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: .16em;
    color: var(--ks-primary);
    margin-bottom: 1.2rem;
    display: flex;
    align-items: center;
    gap: .45rem;
}

.hsig-eyebrow .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--ks-success);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, .18);
}

.hsig-sig {
    display: flex;
    gap: 1.1rem;
    align-items: center;
}

.hsig-logo {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    background: var(--ks-gradient-strong);
    color: #fff;
    display: grid;
    place-items: center;
    font-weight: 800;
    font-size: 1.55rem;
    box-shadow: 0 14px 30px rgba(37, 99, 255, .34);
    flex: 0 0 auto;
}

.hsig-accent {
    width: 3px;
    align-self: stretch;
    border-radius: 3px;
    background: linear-gradient(var(--ks-accent), var(--ks-primary));
}

.hsig-name {
    font-weight: 800;
    font-size: 1.18rem;
    letter-spacing: -.015em;
    color: var(--ks-fg1);
}

.hsig-title {
    font-weight: 700;
    font-size: .82rem;
    color: var(--ks-primary);
    margin-top: .12rem;
}

.hsig-rows {
    margin-top: .8rem;
    display: grid;
    gap: .34rem;
}

.hsig-row {
    display: flex;
    align-items: center;
    gap: .5rem;
    font-size: .76rem;
    color: var(--ks-fg2);
    font-weight: 600;
}

.hsig-row .ks-icon {
    color: var(--ks-primary);
    width: 13px;
    height: 13px;
    flex: 0 0 auto;
}

.hsig-foot {
    margin-top: 1.2rem;
    padding-top: .95rem;
    border-top: 1px solid var(--ks-line);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.hsig-disc {
    font-size: .62rem;
    color: var(--ks-fg3);
    font-weight: 500;
    line-height: 1.4;
    max-width: 22ch;
}

.hsig-social {
    display: flex;
    gap: .4rem;
    flex: 0 0 auto;
}

.hsig-social span {
    width: 28px;
    height: 28px;
    border-radius: 9px;
    background: var(--ks-primary-soft);
    color: var(--ks-primary-deep);
    display: grid;
    place-items: center;
}

/* floating composition tokens (pop in 3D depth with the tilt) */
.float-tok {
    position: absolute;
    z-index: 6;
    font-family: var(--ks-mono);
    font-size: .68rem;
    font-weight: 700;
    color: var(--ks-primary-deep);
    background: rgba(255, 255, 255, .92);
    border: 1px solid var(--ks-primary-soft);
    border-radius: var(--ks-r-pill);
    padding: .3rem .62rem;
    box-shadow: 0 10px 24px rgba(37, 99, 255, .18);
    backdrop-filter: blur(5px);
    white-space: nowrap;
}

.float-badge {
    position: absolute;
    z-index: 6;
    display: inline-flex;
    align-items: center;
    gap: .38rem;
    font-size: .72rem;
    font-weight: 800;
    color: var(--ks-success);
    background: #fff;
    border: 1px solid var(--ks-success-line);
    border-radius: var(--ks-r-pill);
    padding: .38rem .72rem;
    box-shadow: 0 12px 26px rgba(16, 185, 129, .22);
}

.float-badge .fb-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--ks-success);
}

/* ============ touch: disable tilt ============ */
.no-tilt .mock.dash3d {
    transform: perspective(1400px) rotateX(5deg) rotateY(-6deg) !important;
}

/* ============ reduced motion ============ */
@media (prefers-reduced-motion: reduce) {
    .reveal, .h-anim {
        opacity: 1 !important;
        transform: none !important;
        animation: none !important;
        transition: none !important;
    }

    .orb, .pulse-badge::after, .sync-flow.run .lc-step .sweep, .flow-track.in .flow-dot {
        animation: none !important;
    }

    .mock.dash3d, .mock.dash3d:hover {
        transform: perspective(1400px) rotateX(4deg) rotateY(-5deg) !important;
    }

    .flow-track.in .flow-line i {
        transition: none;
        width: 100%;
    }

    .prob-list.scatter .prob-item {
        opacity: 1;
        transform: none;
    }

    .feat.card3d:hover, .step:hover, .email-card:hover .email-inner, .rcard:hover, .tcard:hover {
        transform: none !important;
    }

    .sec-dark .sd-orb {
        display: none;
    }

    .tilt, .tilt-layer {
        transition: none !important;
    }
}