:root {
    --ld-font: "Sora", "Segoe UI", sans-serif;
    --ld-display: "Outfit", "Sora", sans-serif;
    --ld-ink: #ffffff;
    --ld-muted: rgba(255, 255, 255, 0.84);
    --ld-deep: #1d4ed8;
    --ld-deeper: #1e3a8a;
    --ld-wa: #25d366;
    --ld-wa-dark: #128c7e;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

.landing-body {
    margin: 0;
    min-height: 100vh;
    font-family: var(--ld-font);
    color: var(--ld-ink);
    background: transparent;
    overflow-x: hidden;
}

.landing {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    isolation: isolate;
}

.landing--showcase { padding-bottom: 28px; }

/* Particles */
.landing__particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
    z-index: 0;
}

.landing__particle {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.55);
    box-shadow: 0 0 12px rgba(147, 197, 253, 0.65);
    animation: ld-float-up linear infinite;
    opacity: 0;
}

/* Mesh vectors */
.landing__mesh {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    opacity: 0.45;
}

.landing__mesh-path {
    stroke-dasharray: 1400;
    stroke-dashoffset: 1400;
    animation: ld-draw 8s ease-in-out infinite;
}

.landing__mesh-path--2 { animation-delay: 1.2s; }
.landing__mesh-path--3 { animation-delay: 2.4s; }
.landing__mesh-path--4 { animation-delay: 0.6s; }
.landing__mesh-path--5 { animation-delay: 1.8s; }

.landing__mesh-node {
    opacity: 0.7;
    animation: ld-node-pulse 2.8s ease-in-out infinite;
}

/* Nav */
.landing__nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px clamp(16px, 4vw, 48px);
    position: sticky;
    top: 0;
    z-index: 20;
    animation: ld-fade-down 0.7s ease both;
    background: linear-gradient(180deg, rgba(15, 23, 42, 0.35), transparent);
    backdrop-filter: blur(8px);
}

.landing__logo {
    display: inline-flex;
    text-decoration: none;
    align-items: center;
    flex-shrink: 0;
}

.landing__logo-full {
    height: 40px;
    width: auto;
    max-width: min(200px, 42vw);
    display: block;
}

.landing__logo-chip {
    display: inline-flex;
    align-items: center;
    padding: 8px 14px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(255, 255, 255, 0.65);
    box-shadow: 0 10px 28px rgba(15, 23, 42, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.9);
    transition: transform 0.28s cubic-bezier(0.32, 0.72, 0, 1), box-shadow 0.28s ease;
}

.landing__logo:hover .landing__logo-chip {
    transform: translateY(-3px) scale(1.04);
    box-shadow: 0 16px 36px rgba(15, 23, 42, 0.28), 0 0 0 4px rgba(255, 255, 255, 0.18);
}

.landing__nav-links {
    display: flex;
    gap: 22px;
    align-items: center;
}

.landing__nav-links a {
    color: rgba(255, 255, 255, 0.88);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    transition: color 0.2s ease;
}

.landing__nav-links a:hover { color: #fff; }

.landing__nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

/* Buttons */
.landing__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    color: #fff;
    transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.landing__btn--ghost {
    min-width: 108px;
    height: 42px;
    padding: 0 18px;
    border-radius: 999px;
    border: 2px solid rgba(255, 255, 255, 0.92);
    background: transparent;
}

.landing__btn--ghost:hover {
    background: rgba(255, 255, 255, 0.12);
    transform: translateY(-1px);
}

.landing__btn--solid {
    min-width: 132px;
    height: 48px;
    padding: 0 22px;
    border-radius: 14px;
    background: #fff;
    color: #1e3a8a;
    font-weight: 700;
    box-shadow: 0 12px 28px rgba(15, 23, 42, 0.22);
}

.landing__btn--solid:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 34px rgba(15, 23, 42, 0.3);
}

.landing__btn--nav {
    height: 42px;
    min-width: 110px;
    border-radius: 999px;
}

.landing__btn--soft {
    min-width: 132px;
    height: 48px;
    padding: 0 22px;
    border-radius: 14px;
    border: 1.5px solid rgba(255, 255, 255, 0.55);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(8px);
}

.landing__btn--soft:hover {
    background: rgba(255, 255, 255, 0.18);
    transform: translateY(-2px);
}

.landing__btn--wa {
    min-width: 168px;
    height: 54px;
    padding: 0 26px;
    border-radius: 16px;
    background: linear-gradient(135deg, #25d366, #128c7e);
    color: #fff;
    font-weight: 700;
    box-shadow: 0 14px 32px rgba(18, 140, 126, 0.4);
}

.landing__btn--wa:hover {
    transform: translateY(-2px);
    box-shadow: 0 18px 40px rgba(18, 140, 126, 0.5);
}

.landing__btn--xl {
    min-width: 168px;
    height: 54px;
    padding: 0 28px;
    font-size: 1.05rem;
    border-radius: 16px;
}

.landing__btn--pulse {
    position: relative;
    animation: ld-cta-pulse 2.4s ease-in-out infinite;
}

.landing__btn--pulse::after {
    content: "";
    position: absolute;
    inset: -4px;
    border-radius: 18px;
    border: 2px solid rgba(255, 255, 255, 0.45);
    animation: ld-ring-pulse 2.4s ease-out infinite;
    pointer-events: none;
}

/* Lang */
.landing__lang { position: relative; }

.landing__lang summary {
    list-style: none;
    cursor: pointer;
    color: #fff;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 8px 4px;
    user-select: none;
}

.landing__lang summary::-webkit-details-marker { display: none; }
.landing__lang summary::before { content: "▸ "; font-size: 0.75rem; opacity: 0.8; }
.landing__lang[open] summary::before { content: "▾ "; }

.landing__lang ul {
    position: absolute;
    right: 0;
    top: calc(100% + 8px);
    margin: 0;
    padding: 8px;
    list-style: none;
    min-width: 160px;
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.25);
    z-index: 30;
    animation: ld-fade-up 0.2s ease both;
}

.landing__lang a {
    display: block;
    padding: 10px 12px;
    border-radius: 10px;
    color: #111827;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
}

.landing__lang a:hover {
    background: #eef2ff;
    color: #1e40af;
}

/* Hero */
.landing__main--hero {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: clamp(24px, 5vh, 48px) 20px 48px;
    min-height: calc(100vh - 88px);
}

.landing__eyebrow {
    margin: 0 0 14px;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.78);
}

.landing__brand {
    margin: 0;
    font-family: var(--ld-display);
    font-weight: 800;
    line-height: 0.95;
    letter-spacing: -0.03em;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.18em 0.28em;
    font-size: clamp(3.2rem, 13vw, 7.2rem);
    text-shadow: 0 18px 50px rgba(15, 23, 42, 0.35);
}

.landing__brand-atech {
    background: linear-gradient(120deg, #fff 10%, #bfdbfe 45%, #fff 80%);
    background-size: 200% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: ld-shine 4.5s ease-in-out infinite;
}

.landing__brand-erp {
    color: #fff;
    position: relative;
}

.landing__brand-erp::after {
    content: "";
    position: absolute;
    left: 8%;
    right: 8%;
    bottom: 0.06em;
    height: 0.12em;
    border-radius: 999px;
    background: linear-gradient(90deg, transparent, #93c5fd, #fff, #93c5fd, transparent);
    opacity: 0.85;
    animation: ld-underline 2.8s ease-in-out infinite;
}

.landing__rotator {
    margin-top: clamp(20px, 4vh, 34px);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 10px 14px;
    font-family: var(--ld-display);
    font-weight: 700;
    font-size: clamp(1.05rem, 3.2vw, 1.75rem);
}

.landing__rotator-prefix { color: rgba(255, 255, 255, 0.88); }

.landing__rotator-window {
    position: relative;
    display: inline-grid;
    min-width: min(22ch, 90vw);
    min-height: 1.4em;
    place-items: center;
    overflow: hidden;
}

.landing__rotator-word {
    grid-area: 1 / 1;
    opacity: 0;
    transform: translateY(120%) scale(0.92);
    filter: blur(6px);
    transition:
        opacity 0.55s cubic-bezier(0.22, 1, 0.36, 1),
        transform 0.55s cubic-bezier(0.22, 1, 0.36, 1),
        filter 0.55s ease;
    white-space: nowrap;
    padding: 0.12em 0.55em;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.14);
    border: 1px solid rgba(255, 255, 255, 0.28);
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.2);
    letter-spacing: 0.04em;
}

.landing__rotator-word.is-active {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: blur(0);
}

.landing__rotator-word.is-exit {
    opacity: 0;
    transform: translateY(-110%) scale(0.94);
    filter: blur(4px);
}

.landing__lead {
    margin: 22px auto 0;
    max-width: 44rem;
    font-size: clamp(1rem, 2.2vw, 1.15rem);
    line-height: 1.65;
    color: var(--ld-muted);
}

.landing__lead strong { color: #fff; font-weight: 700; }

.landing__cta {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    justify-content: center;
    margin-top: 28px;
}

.landing__cta--left { justify-content: flex-start; }

.landing__marquee {
    margin-top: clamp(32px, 6vh, 56px);
    width: min(1100px, 100%);
    overflow: hidden;
    mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}

.landing__marquee-track {
    display: flex;
    align-items: center;
    gap: 18px;
    width: max-content;
    animation: ld-marquee 32s linear infinite;
    font-family: var(--ld-display);
    font-weight: 700;
    font-size: clamp(0.85rem, 2vw, 1.05rem);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.72);
}

.landing__marquee-dot {
    color: rgba(147, 197, 253, 0.85);
    font-size: 0.55em;
}

/* Shared section bits */
.ld-anim {
    opacity: 0;
    animation: ld-rise 0.9s cubic-bezier(0.22, 1, 0.36, 1) both;
    animation-delay: var(--d, 0s);
}

.ld-reveal {
    opacity: 0;
    transform: translateY(28px);
    transition:
        opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
        transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
    transition-delay: var(--d, 0s);
}

.ld-reveal.is-in {
    opacity: 1;
    transform: translateY(0);
}

.landing__section-title {
    margin: 0 0 14px;
    text-align: center;
    font-family: var(--ld-display);
    font-size: clamp(1.55rem, 3.5vw, 2.25rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.15;
}

.landing__section-title--left { text-align: left; }

.landing__section-title em {
    font-style: normal;
    background: linear-gradient(120deg, #86efac, #25d366, #bbf7d0);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.landing__section-lead {
    margin: 0 0 24px;
    max-width: 38rem;
    font-size: 1.02rem;
    line-height: 1.65;
    color: var(--ld-muted);
}

.landing__section-lead--center {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
    max-width: 42rem;
}

.landing__section-head { margin-bottom: 8px; }

.landing__badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.landing__badge--wa {
    background: rgba(37, 211, 102, 0.18);
    border: 1px solid rgba(37, 211, 102, 0.45);
    color: #bbf7d0;
}

/* WhatsApp showcase */
.landing__wa {
    position: relative;
    z-index: 2;
    width: min(1180px, calc(100% - 28px));
    margin: 12px auto 56px;
    padding: clamp(28px, 4vw, 48px);
    border-radius: 28px;
    background: rgba(15, 23, 42, 0.42);
    border: 1px solid rgba(255, 255, 255, 0.14);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    overflow: hidden;
    box-shadow: 0 24px 60px rgba(15, 23, 42, 0.35);
}

.landing__wa-glow {
    position: absolute;
    width: 420px;
    height: 420px;
    right: -80px;
    top: -100px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(37, 211, 102, 0.35), transparent 70%);
    filter: blur(20px);
    pointer-events: none;
    animation: ld-glow-drift 6s ease-in-out infinite;
}

.landing__wa-vectors {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    opacity: 0.55;
}

.landing__wa-path {
    fill: none;
    stroke: url(#wa-line);
    stroke-width: 1.5;
    stroke-dasharray: 1200;
    stroke-dashoffset: 1200;
    animation: ld-draw 7s ease-in-out infinite;
}

.landing__wa-path--delay { animation-delay: 1.5s; }

.landing__wa-node {
    fill: #25d366;
    animation: ld-node-pulse 2.4s ease-in-out infinite;
}

.landing__wa-inner {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: clamp(24px, 4vw, 48px);
    align-items: center;
}

.landing__wa-points {
    list-style: none;
    margin: 0 0 22px;
    padding: 0;
    display: grid;
    gap: 14px;
}

.landing__wa-points li {
    display: grid;
    grid-template-columns: 44px 1fr;
    gap: 12px;
    align-items: start;
}

.landing__wa-point-icon {
    width: 44px;
    height: 44px;
    border-radius: 14px;
    display: grid;
    place-items: center;
    background: rgba(37, 211, 102, 0.18);
    border: 1px solid rgba(37, 211, 102, 0.35);
    color: #86efac;
}

.landing__wa-points strong {
    display: block;
    font-family: var(--ld-display);
    font-size: 1.02rem;
    margin-bottom: 2px;
}

.landing__wa-points span {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.74);
    line-height: 1.45;
}

/* Phone mock */
.landing__phone {
    position: relative;
    display: flex;
    justify-content: center;
    perspective: 900px;
}

.landing__phone-frame {
    position: relative;
    z-index: 2;
    width: min(300px, 86vw);
    border-radius: 32px;
    background: #0b141a;
    border: 3px solid rgba(255, 255, 255, 0.18);
    box-shadow:
        0 30px 60px rgba(0, 0, 0, 0.45),
        inset 0 0 0 1px rgba(255, 255, 255, 0.06);
    overflow: hidden;
    transform: rotateY(-6deg) rotateX(2deg);
    animation: ld-phone-float 5s ease-in-out infinite;
}

.landing__phone-notch {
    height: 18px;
    background: #000;
}

.landing__phone-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 14px;
    background: #075e54;
}

.landing__phone-bar i {
    font-size: 1.4rem;
    color: #25d366;
}

.landing__phone-bar strong {
    display: block;
    font-size: 0.88rem;
}

.landing__phone-bar small {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.7rem;
}

.landing__phone-chat {
    min-height: 320px;
    padding: 14px 12px;
    background:
        linear-gradient(180deg, rgba(7, 94, 84, 0.15), transparent 30%),
        #0b141a;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.landing__bubble {
    max-width: 88%;
    padding: 10px 12px;
    border-radius: 12px;
    font-size: 0.78rem;
    line-height: 1.4;
    opacity: 0;
    transform: translateY(12px) scale(0.96);
}

.landing__phone.is-live .landing__bubble {
    animation: ld-bubble-in 0.45s cubic-bezier(0.22, 1, 0.36, 1) both;
    animation-delay: var(--bd, 0s);
}

.landing__bubble--in {
    align-self: flex-start;
    background: #202c33;
    border-bottom-left-radius: 4px;
}

.landing__bubble--out {
    align-self: flex-end;
    background: #005c4b;
    border-bottom-right-radius: 4px;
}

.landing__phone-input {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    background: #1f2c34;
    color: rgba(255, 255, 255, 0.45);
    font-size: 0.78rem;
}

.landing__phone-input i { color: #25d366; }

.landing__phone-orbit {
    position: absolute;
    inset: -18px;
    border-radius: 50%;
    border: 1px dashed rgba(37, 211, 102, 0.35);
    animation: ld-spin 18s linear infinite;
    pointer-events: none;
}

.landing__phone-orbit--2 {
    inset: -40px;
    border-color: rgba(147, 197, 253, 0.28);
    animation-duration: 28s;
    animation-direction: reverse;
}

/* Capability strip */
.landing__strip {
    position: relative;
    z-index: 2;
    width: min(1100px, calc(100% - 28px));
    margin: 0 auto 48px;
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 10px;
}

.landing__strip-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 16px 10px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.14);
    font-size: 0.78rem;
    font-weight: 600;
    text-align: center;
}

.landing__strip-item i {
    font-size: 1.25rem;
    color: #93c5fd;
}

.landing__strip-item .fa-whatsapp { color: #25d366; }

/* Features */
.landing__features {
    position: relative;
    z-index: 2;
    width: min(1100px, calc(100% - 28px));
    margin: 0 auto 56px;
}

.landing__cards--grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    perspective: 1000px;
}

.landing__card {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 22px 18px;
    border-radius: 20px;
    color: #fff;
    text-align: left;
    background: rgba(15, 23, 42, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.14);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: 0 14px 32px rgba(15, 23, 42, 0.2);
    transform-style: preserve-3d;
    transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.landing__card:hover {
    background: rgba(255, 255, 255, 0.14);
    border-color: rgba(255, 255, 255, 0.32);
    box-shadow: 0 20px 40px rgba(15, 23, 42, 0.3);
}

.landing__card strong {
    font-size: 1.05rem;
    font-weight: 700;
    font-family: var(--ld-display);
}

.landing__card > span:last-child {
    font-size: 0.86rem;
    color: rgba(255, 255, 255, 0.74);
    line-height: 1.4;
}

.landing__card-icon {
    width: 46px;
    height: 46px;
    border-radius: 14px;
    display: grid;
    place-items: center;
    margin-bottom: 4px;
    font-size: 1.1rem;
    box-shadow: 0 10px 22px rgba(15, 23, 42, 0.25);
}

.landing__card-icon.is-orange { background: linear-gradient(135deg, #f97316, #ea580c); }
.landing__card-icon.is-cyan { background: linear-gradient(135deg, #06b6d4, #0284c7); }
.landing__card-icon.is-violet { background: linear-gradient(135deg, #6366f1, #2563eb); }
.landing__card-icon.is-green { background: linear-gradient(135deg, #10b981, #059669); }
.landing__card-icon.is-blue { background: linear-gradient(135deg, #3b82f6, #1d4ed8); }
.landing__card-icon.is-pink { background: linear-gradient(135deg, #f472b6, #db2777); }

/* Info bands */
.landing__bands {
    position: relative;
    z-index: 2;
    width: min(1100px, calc(100% - 28px));
    margin: 0 auto 56px;
    display: grid;
    gap: 16px;
}

.landing__band {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 22px;
    align-items: center;
    padding: 22px 24px;
    border-radius: 22px;
    background: rgba(15, 23, 42, 0.32);
    border: 1px solid rgba(255, 255, 255, 0.14);
    backdrop-filter: blur(12px);
}

.landing__band--flip { direction: rtl; }
.landing__band--flip > * { direction: ltr; }

.landing__band h3 {
    margin: 0 0 8px;
    font-family: var(--ld-display);
    font-size: 1.25rem;
    font-weight: 800;
}

.landing__band p {
    margin: 0;
    color: var(--ld-muted);
    line-height: 1.55;
    font-size: 0.95rem;
}

.landing__band-visual {
    height: 100px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.landing__fx-chip {
    padding: 8px 12px;
    border-radius: 10px;
    background: rgba(59, 130, 246, 0.25);
    font-weight: 800;
    font-family: var(--ld-display);
    font-size: 0.85rem;
}

.landing__fx-lines {
    width: 90px;
    color: #93c5fd;
}

.landing__fx-lines path {
    stroke-dasharray: 220;
    stroke-dashoffset: 220;
    animation: ld-draw 3.5s ease-in-out infinite;
}

.landing__eco-node {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    display: grid;
    place-items: center;
    background: rgba(6, 182, 212, 0.25);
    border: 1px solid rgba(6, 182, 212, 0.4);
}

.landing__eco-node.is-core {
    background: rgba(37, 99, 235, 0.35);
    border-color: rgba(147, 197, 253, 0.5);
    animation: ld-node-pulse 2.2s ease-in-out infinite;
}

.landing__eco-line {
    width: 28px;
    height: 2px;
    background: linear-gradient(90deg, transparent, #93c5fd, transparent);
    animation: ld-line-flow 1.8s linear infinite;
    background-size: 200% 100%;
}

.landing__ai-orb {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, #6366f1, #2563eb);
    box-shadow: 0 0 24px rgba(99, 102, 241, 0.45);
    margin-right: 8px;
}

.landing__ai-bars {
    display: flex;
    align-items: flex-end;
    gap: 5px;
    height: 48px;
}

.landing__ai-bars span {
    width: 8px;
    height: var(--h);
    border-radius: 4px;
    background: linear-gradient(180deg, #93c5fd, #2563eb);
    animation: ld-bar 1.6s ease-in-out infinite;
}

.landing__ai-bars span:nth-child(2) { animation-delay: 0.15s; }
.landing__ai-bars span:nth-child(3) { animation-delay: 0.3s; }
.landing__ai-bars span:nth-child(4) { animation-delay: 0.45s; }
.landing__ai-bars span:nth-child(5) { animation-delay: 0.6s; }

/* How */
.landing__how {
    position: relative;
    z-index: 2;
    width: min(1100px, calc(100% - 28px));
    margin: 0 auto 48px;
}

.landing__steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin-top: 8px;
}

.landing__step {
    position: relative;
    padding: 24px 20px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.14);
    text-align: center;
}

.landing__step-n {
    display: inline-block;
    font-family: var(--ld-display);
    font-weight: 800;
    font-size: 1.5rem;
    color: #93c5fd;
    margin-bottom: 8px;
}

.landing__step strong {
    display: block;
    font-family: var(--ld-display);
    font-size: 1.05rem;
    margin-bottom: 8px;
}

.landing__step p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--ld-muted);
    line-height: 1.45;
}

.landing__step-join {
    display: none;
}

/* Stats */
.landing__stats {
    position: relative;
    z-index: 2;
    width: min(900px, calc(100% - 28px));
    margin: 0 auto 40px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
}

.landing__stat {
    text-align: center;
    padding: 22px 14px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.18);
    backdrop-filter: blur(10px);
}

.landing__stat strong {
    display: block;
    font-family: var(--ld-display);
    font-size: clamp(2rem, 5vw, 2.8rem);
    font-weight: 800;
    line-height: 1;
    margin-bottom: 8px;
}

.landing__stat span {
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.78);
}

/* Finale */
.landing__finale {
    position: relative;
    z-index: 2;
    width: min(900px, calc(100% - 28px));
    margin: 0 auto 36px;
    padding: 40px 28px;
    text-align: center;
    border-radius: 28px;
    background: linear-gradient(145deg, rgba(37, 99, 235, 0.35), rgba(15, 23, 42, 0.5));
    border: 1px solid rgba(255, 255, 255, 0.18);
    box-shadow: 0 24px 50px rgba(15, 23, 42, 0.3);
}

.landing__finale h2 {
    margin: 0 0 10px;
    font-family: var(--ld-display);
    font-size: clamp(1.4rem, 3vw, 1.9rem);
    font-weight: 800;
}

.landing__finale p {
    margin: 0 auto 8px;
    max-width: 36rem;
    color: var(--ld-muted);
}

.landing .auth-powered {
    position: relative;
    z-index: 2;
    margin-top: auto;
}

/* Keyframes */
@keyframes ld-rise {
    from { opacity: 0; transform: translateY(28px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes ld-fade-up {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes ld-fade-down {
    from { opacity: 0; transform: translateY(-12px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes ld-shine {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

@keyframes ld-underline {
    0%, 100% { transform: scaleX(0.55); opacity: 0.55; }
    50% { transform: scaleX(1); opacity: 1; }
}

@keyframes ld-marquee {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}

@keyframes ld-float-up {
    0% { opacity: 0; transform: translateY(20px) scale(0.6); }
    15% { opacity: 0.85; }
    85% { opacity: 0.55; }
    100% { opacity: 0; transform: translateY(-110vh) scale(1.1); }
}

@keyframes ld-cta-pulse {
    0%, 100% { box-shadow: 0 12px 28px rgba(15, 23, 42, 0.22); }
    50% { box-shadow: 0 16px 40px rgba(37, 99, 235, 0.35), 0 0 0 6px rgba(255, 255, 255, 0.12); }
}

@keyframes ld-ring-pulse {
    0% { opacity: 0.7; transform: scale(1); }
    100% { opacity: 0; transform: scale(1.12); }
}

@keyframes ld-draw {
    0% { stroke-dashoffset: 1400; opacity: 0.2; }
    40% { opacity: 0.9; }
    55% { stroke-dashoffset: 0; opacity: 0.85; }
    100% { stroke-dashoffset: -1400; opacity: 0.2; }
}

@keyframes ld-node-pulse {
    0%, 100% { opacity: 0.45; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.35); }
}

@keyframes ld-glow-drift {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(-30px, 20px) scale(1.12); }
}

@keyframes ld-phone-float {
    0%, 100% { transform: rotateY(-6deg) rotateX(2deg) translateY(0); }
    50% { transform: rotateY(-2deg) rotateX(0deg) translateY(-10px); }
}

@keyframes ld-bubble-in {
    to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes ld-spin {
    to { transform: rotate(360deg); }
}

@keyframes ld-line-flow {
    from { background-position: 100% 0; }
    to { background-position: -100% 0; }
}

@keyframes ld-bar {
    0%, 100% { transform: scaleY(0.7); opacity: 0.7; }
    50% { transform: scaleY(1); opacity: 1; }
}

@media (max-width: 980px) {
    .landing__nav-links { display: none; }

    .landing__wa-inner {
        grid-template-columns: 1fr;
    }

    .landing__phone-frame {
        transform: none;
        animation: ld-phone-float-flat 5s ease-in-out infinite;
    }

    .landing__cards--grid {
        grid-template-columns: 1fr 1fr;
    }

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

    .landing__band,
    .landing__band--flip {
        grid-template-columns: 1fr;
        direction: ltr;
    }
}

@media (max-width: 640px) {
    .landing__nav-actions { gap: 8px; }

    .landing__btn--ghost,
    .landing__btn--nav {
        min-width: 0;
        height: 38px;
        padding: 0 14px;
        font-size: 0.85rem;
    }

    .landing__rotator { flex-direction: column; gap: 8px; }

    .landing__rotator-word {
        white-space: normal;
        text-align: center;
        line-height: 1.25;
        padding: 0.25em 0.7em;
    }

    .landing__cards--grid,
    .landing__stats,
    .landing__steps,
    .landing__strip {
        grid-template-columns: 1fr;
    }

    .landing__cta { width: 100%; }

    .landing__btn--xl {
        flex: 1;
        min-width: 0;
    }

    .landing__main--hero {
        min-height: auto;
        padding-top: 16px;
    }

    .landing__wa { padding: 22px 16px; }
}

@keyframes ld-phone-float-flat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@media (prefers-reduced-motion: reduce) {
    .ld-anim,
    .landing__nav,
    .landing__brand-atech,
    .landing__brand-erp::after,
    .landing__marquee-track,
    .landing__btn--pulse,
    .landing__btn--pulse::after,
    .landing__particle,
    .landing__mesh-path,
    .landing__wa-path,
    .landing__phone-frame,
    .landing__phone-orbit,
    .landing__fx-lines path,
    .landing__ai-bars span,
    .landing__eco-line {
        animation: none !important;
    }

    .ld-anim,
    .ld-reveal {
        opacity: 1 !important;
        transform: none !important;
    }

    .landing__bubble {
        opacity: 1 !important;
        transform: none !important;
    }

    .landing__rotator-word { transition: none; }
}