:root {
    --ink: #111a3b;
    --muted: #687291;
    --line: #dfe4f3;
    --paper: #f8f9fd;
    --white: #fff;
    --accent: #4966ef;
    --accent-deep: #3047c9;
    --green: #32bd7c;
    --red: #ef6670;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: "Vazirmatn", Tahoma, sans-serif;
    font-size: 16px;
    line-height: 1.8;
    overflow-x: hidden;
}
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
.skip-link { position: fixed; inset: 8px auto auto 8px; z-index: 999; padding: 8px 14px; background: var(--ink); color: #fff; transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }

.landing-header {
    position: fixed;
    z-index: 50;
    top: 0;
    right: 0;
    left: 0;
    height: 86px;
    padding: 0 clamp(24px, 5.5vw, 88px);
    display: flex;
    align-items: center;
    gap: 48px;
    transition: height .3s ease, background .3s ease, box-shadow .3s ease;
}
.landing-header.is-scrolled { height: 68px; background: rgba(248,249,253,.88); backdrop-filter: blur(18px); box-shadow: 0 1px 0 rgba(17,26,59,.08); }
.landing-brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-size: 19px; font-weight: 900; }
.landing-brand img { width: 34px; height: 34px; filter: drop-shadow(0 6px 12px rgba(73,102,239,.25)); }
.landing-nav { display: flex; gap: 34px; margin-inline: auto; }
.landing-nav a { color: #4d5879; text-decoration: none; font-size: 13px; font-weight: 600; transition: color .2s; }
.landing-nav a:hover { color: var(--accent); }
.header-cta, .primary-cta { display: inline-flex; align-items: center; justify-content: center; gap: 12px; text-decoration: none; font-weight: 700; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.header-cta { min-width: 132px; height: 44px; padding: 0 20px; border: 1px solid #cfd6ec; border-radius: 100px; font-size: 13px; background: rgba(255,255,255,.55); }
.header-cta:hover { transform: translateY(-2px); border-color: var(--accent); }
.header-cta svg, .primary-cta svg { width: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; transform: rotate(180deg); }

.hero {
    position: relative;
    min-height: 100svh;
    padding: 142px clamp(24px, 7vw, 112px) 64px;
    display: grid;
    grid-template-columns: minmax(380px, .82fr) minmax(540px, 1.18fr);
    align-items: center;
    gap: clamp(38px, 5vw, 92px);
    overflow: hidden;
    isolation: isolate;
}
.hero::before { content: ""; position: absolute; z-index: -2; inset: 0; background: linear-gradient(135deg, #fff 0%, #f7f8fe 44%, #eef1ff 100%); }
.hero::after { content: ""; position: absolute; z-index: -1; width: 780px; height: 780px; left: -220px; top: -270px; border-radius: 50%; background: radial-gradient(circle, rgba(100,126,255,.17), rgba(100,126,255,0) 66%); }
.hero-orbit { position: absolute; z-index: -1; border: 1px solid rgba(73,102,239,.12); border-radius: 50%; }
.orbit-one { width: 510px; height: 510px; left: 7vw; top: 21vh; }
.orbit-two { width: 760px; height: 760px; left: -4vw; top: 7vh; }
.hero-copy { max-width: 620px; }
.eyebrow { margin: 0 0 18px; color: var(--accent); font-size: 13px; font-weight: 800; letter-spacing: -.1px; }
.eyebrow::before { content: ""; display: inline-block; vertical-align: middle; width: 30px; height: 3px; margin-left: 10px; border-radius: 10px; background: currentColor; }
h1, h2 { margin: 0; font-weight: 900; letter-spacing: -2.4px; line-height: 1.22; }
h1 { font-size: clamp(48px, 5.6vw, 84px); }
h2 { font-size: clamp(38px, 4.5vw, 70px); }
h1 em, h2 em { color: var(--accent); font-style: normal; }
.hero-lead { max-width: 570px; margin: 28px 0 0; color: var(--muted); font-size: clamp(15px, 1.3vw, 18px); line-height: 2; }
.hero-actions { display: flex; align-items: center; gap: 28px; margin-top: 34px; }
.primary-cta { min-width: 178px; height: 56px; padding: 0 26px; border-radius: 100px; background: var(--accent); color: #fff; box-shadow: 0 15px 32px rgba(73,102,239,.22); }
.primary-cta:hover { transform: translateY(-3px); background: var(--accent-deep); box-shadow: 0 19px 40px rgba(73,102,239,.3); }
.text-link { color: var(--ink); text-decoration: none; font-size: 14px; font-weight: 700; }
.text-link span { display: inline-block; margin-right: 6px; transition: transform .2s; }
.text-link:hover span { transform: translateY(4px); }
.hero-note { display: flex; align-items: center; gap: 8px; margin: 22px 0 0; color: #7a849e; font-size: 12px; }
.hero-note span { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 5px rgba(50,189,124,.12); }
.hero-index { position: absolute; bottom: 28px; right: clamp(24px, 7vw, 112px); color: #9ba3ba; font-size: 11px; letter-spacing: 1px; }

.product-stage { position: relative; direction: rtl; perspective: 1400px; transform-style: preserve-3d; }
.stage-glow { position: absolute; inset: 12% 7%; background: rgba(73,102,239,.2); filter: blur(80px); border-radius: 50%; }
.monitor-window { position: relative; z-index: 2; overflow: hidden; background: rgba(255,255,255,.9); border: 1px solid rgba(196,205,232,.9); border-radius: 22px; box-shadow: 0 40px 90px rgba(37,51,111,.16); transform: rotateY(4deg) rotateX(1.5deg); transition: transform .35s ease; }
.product-stage:hover .monitor-window { transform: rotateY(0deg) rotateX(0deg) translateY(-5px); }
.window-bar { height: 64px; padding: 0 24px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); }
.window-title { display: flex; align-items: center; gap: 9px; font-size: 13px; font-weight: 800; }
.window-title img { width: 23px; }
.window-meta { display: flex; align-items: center; gap: 7px; color: #818aa4; font-size: 10px; }
.live-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); animation: live 2s infinite; }
@keyframes live { 50% { box-shadow: 0 0 0 8px rgba(50,189,124,0); } 0%, 100% { box-shadow: 0 0 0 0 rgba(50,189,124,.22); } }
.monitor-summary { display: grid; grid-template-columns: .62fr .62fr 1.3fr; gap: 1px; background: var(--line); border-bottom: 1px solid var(--line); }
.monitor-summary > div { min-height: 92px; padding: 19px 22px; display: flex; flex-direction: column; background: #fbfcff; }
.monitor-summary strong { font-size: 21px; line-height: 1.4; }
.monitor-summary span, .service-name span { color: #8a93ad; font-size: 10px; }
.monitor-summary .summary-status { justify-content: center; }
.summary-status strong { color: var(--green); font-size: 13px; }
.service-list { padding: 5px 22px; }
.service-row { min-height: 74px; display: grid; grid-template-columns: 74px 1fr 1.45fr 54px; align-items: center; gap: 14px; border-bottom: 1px solid #edf0f7; }
.service-row:last-child { border-bottom: 0; }
.service-state { display: flex; align-items: center; gap: 6px; font-size: 10px; font-weight: 700; }
.service-state i { width: 7px; height: 7px; border-radius: 50%; }
.is-up { color: var(--green); } .is-up i { background: var(--green); }
.is-warning { color: #e9a638; } .is-warning i { background: #e9a638; }
.service-name { display: flex; flex-direction: column; }
.service-name b { font-size: 11px; }
.uptime-line { display: grid; grid-template-columns: repeat(12, 1fr); gap: 3px; direction: ltr; }
.uptime-line i { height: 19px; border-radius: 3px; background: var(--green); opacity: .88; }
.uptime-line .was-down { background: var(--red); }
.response-time { direction: ltr; color: #79839f; font-size: 9px; }
.window-footer { min-height: 58px; padding: 0 24px; display: flex; align-items: center; justify-content: space-between; border-top: 1px solid var(--line); color: #8a93ad; font-size: 9px; }
.channel-dots { display: flex; gap: 5px; }
.channel-dots i { padding: 3px 7px; border-radius: 20px; background: #eff2ff; color: #6f7ba0; font-style: normal; }
.alert-toast-demo { position: absolute; z-index: 4; bottom: -44px; left: -32px; width: 285px; padding: 15px 16px; display: grid; grid-template-columns: 38px 1fr auto; align-items: center; gap: 10px; border: 1px solid #ffd8dc; border-radius: 15px; background: rgba(255,255,255,.96); box-shadow: 0 22px 48px rgba(37,51,111,.17); animation: float 4.5s ease-in-out infinite; }
@keyframes float { 50% { transform: translateY(-8px); } }
.alert-icon { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 11px; background: #fff0f1; color: var(--red); font-weight: 900; }
.alert-toast-demo div { display: flex; flex-direction: column; }
.alert-toast-demo b { font-size: 11px; }
.alert-toast-demo small, .alert-toast-demo time { color: #929ab0; font-size: 8px; }

.signal-strip { min-height: 280px; padding: 60px clamp(24px, 7vw, 112px); display: grid; grid-template-columns: repeat(3, 1fr) 1.25fr; align-items: center; background: var(--ink); color: #fff; }
.signal-strip > div { padding: 10px clamp(18px, 3vw, 52px); border-right: 1px solid rgba(255,255,255,.13); }
.signal-strip strong, .signal-strip span { display: block; }
.signal-strip strong { font-size: clamp(25px, 2.6vw, 40px); }
.signal-strip span { color: #aab2cc; font-size: 11px; }
.signal-strip p { margin: 0; text-align: left; font-size: clamp(28px, 3.5vw, 54px); font-weight: 900; line-height: 1.3; }
.signal-strip em { color: #8092ff; font-style: normal; }

.feature-story { min-height: 860px; padding: 150px clamp(24px, 8vw, 132px); display: grid; grid-template-columns: .82fr 1.18fr; align-items: center; gap: clamp(70px, 10vw, 170px); background: #fff; }
.section-intro { max-width: 510px; }
.section-intro > p:last-child, .how-copy > p { max-width: 470px; margin: 26px 0 0; color: var(--muted); }
.incident-visual { max-width: 700px; padding: 34px; border: 1px solid var(--line); border-radius: 26px; background: linear-gradient(150deg, #fff, #f7f8fd); box-shadow: 0 32px 80px rgba(26,39,94,.1); }
.incident-head { display: flex; justify-content: space-between; padding-bottom: 21px; border-bottom: 1px solid var(--line); color: #8a93aa; font-size: 11px; }
.incident-title { display: grid; grid-template-columns: 14px 1fr auto; align-items: center; gap: 15px; margin-top: 28px; }
.incident-title div { display: flex; flex-direction: column; }
.incident-title b { font-size: 18px; }
.incident-title small { color: var(--green); font-size: 10px; }
.incident-title > strong { direction: ltr; color: var(--red); font-size: 27px; }
.incident-pulse { width: 10px; height: 10px; border-radius: 50%; background: var(--red); box-shadow: 0 0 0 8px rgba(239,102,112,.12); }
.incident-track { position: relative; height: 7px; margin: 50px 3px 12px; border-radius: 20px; background: #dce3f2; direction: rtl; }
.incident-track span { position: absolute; inset: 0 43% 0 0; border-radius: inherit; background: var(--red); }
.incident-track i, .incident-track b { position: absolute; top: 50%; width: 16px; height: 16px; border: 4px solid #fff; border-radius: 50%; transform: translateY(-50%); box-shadow: 0 0 0 1px rgba(17,26,59,.12); }
.incident-track i { right: 42%; background: var(--red); }
.incident-track b { left: 0; background: var(--green); }
.track-labels { display: flex; justify-content: space-between; color: #929bb1; font-size: 9px; }
.incident-facts { margin-top: 42px; padding-top: 24px; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.incident-facts span { display: flex; flex-direction: column; padding-right: 18px; border-right: 1px solid var(--line); }
.incident-facts span:first-child { border-right: 0; }
.incident-facts small { color: #8b94aa; font-size: 9px; }
.incident-facts b { direction: ltr; font-size: 13px; }

.feature-lines { padding: 140px clamp(24px, 8vw, 132px); background: var(--paper); }
.feature-heading { max-width: 850px; margin-bottom: 94px; }
.feature-line { min-height: 144px; display: grid; grid-template-columns: 70px .9fr 1.45fr 140px; align-items: center; gap: 28px; border-top: 1px solid #d9dfee; transition: padding .25s ease, color .25s ease; }
.feature-line:last-child { border-bottom: 1px solid #d9dfee; }
.feature-line:hover { padding-inline: 12px; color: var(--accent); }
.feature-line > span { color: var(--accent); font-size: 12px; font-weight: 800; }
.feature-line h3 { margin: 0; color: var(--ink); font-size: clamp(19px, 2vw, 28px); }
.feature-line p { margin: 0; color: var(--muted); font-size: 13px; }
.feature-line > b { direction: ltr; color: #9aa3ba; text-align: left; font-size: 12px; letter-spacing: 1px; }

.how { min-height: 900px; padding: 140px clamp(24px, 8vw, 132px); display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(80px, 11vw, 190px); background: #fff; }
.how-copy { position: sticky; top: 140px; align-self: start; }
.how-copy .text-link { display: inline-block; margin-top: 34px; color: var(--accent); }
.steps { margin: 0; padding: 0; list-style: none; counter-reset: steps; }
.steps li { min-height: 155px; display: grid; grid-template-columns: 70px 1fr; align-items: start; gap: 25px; padding: 34px 0; border-top: 1px solid var(--line); }
.steps li:last-child { border-bottom: 1px solid var(--line); }
.steps li > span { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 15px; background: #edf0ff; color: var(--accent); font-weight: 900; }
.steps b { font-size: 19px; }
.steps p { margin: 5px 0 0; color: var(--muted); font-size: 13px; }

.final-cta { min-height: 760px; padding: 110px 24px; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; background: var(--accent); color: #fff; position: relative; overflow: hidden; }
.final-cta::before, .final-cta::after { content: ""; position: absolute; border: 1px solid rgba(255,255,255,.14); border-radius: 50%; }
.final-cta::before { width: 620px; height: 620px; }
.final-cta::after { width: 880px; height: 880px; }
.final-cta > * { position: relative; z-index: 1; }
.final-cta > img { width: 52px; filter: brightness(0) invert(1); margin-bottom: 24px; }
.final-cta .eyebrow { color: #dce2ff; }
.final-cta h2 { font-size: clamp(52px, 7vw, 102px); }
.final-cta h2 em { color: #bfcaff; }
.final-cta > p:not(.eyebrow) { max-width: 510px; margin: 25px 0 32px; color: #dce2ff; }
.primary-cta.light { background: #fff; color: var(--accent); box-shadow: 0 15px 40px rgba(20,28,74,.22); }
.primary-cta.light:hover { background: #f2f4ff; }
.cta-url { direction: ltr; margin-top: 18px; color: #c7d0ff; font-size: 11px; letter-spacing: 1px; }
.landing-footer { min-height: 120px; padding: 0 clamp(24px, 7vw, 112px); display: flex; align-items: center; gap: 36px; background: #fff; }
.landing-footer p { margin-inline: auto; color: var(--muted); font-size: 12px; }
.landing-footer > a:last-child { color: var(--accent); font-size: 12px; font-weight: 700; text-decoration: none; }

.reveal { opacity: 0; transform: translateY(24px); animation: reveal .8s cubic-bezier(.22,.8,.3,1) forwards; }
.hero-copy .reveal:nth-child(2) { animation-delay: .08s; }
.hero-copy .reveal:nth-child(3) { animation-delay: .16s; }
.hero-copy .reveal:nth-child(4) { animation-delay: .24s; }
.hero-copy .reveal:nth-child(5) { animation-delay: .32s; }
.product-stage.reveal { animation-delay: .2s; }
@keyframes reveal { to { opacity: 1; transform: translateY(0); } }
.observe { opacity: 0; transform: translateY(32px); transition: opacity .7s ease, transform .7s cubic-bezier(.22,.8,.3,1); }
.observe.is-visible { opacity: 1; transform: translateY(0); }

@media (max-width: 1050px) {
    .hero { grid-template-columns: 1fr; padding-top: 140px; padding-bottom: 120px; }
    .hero-copy { max-width: 760px; }
    .product-stage { width: min(820px, 92%); margin: 10px auto 0; }
    .signal-strip { grid-template-columns: repeat(3, 1fr); }
    .signal-strip p { grid-column: 1 / -1; margin-top: 42px; text-align: right; }
    .feature-story { grid-template-columns: 1fr; }
    .incident-visual { width: 100%; max-width: none; }
}

@media (max-width: 720px) {
    body { font-size: 14px; }
    .landing-header { height: 72px; padding: 0 18px; }
    .landing-nav { display: none; }
    .landing-brand { font-size: 17px; }
    .landing-brand img { width: 30px; }
    .header-cta { margin-right: auto; min-width: 108px; height: 40px; padding: 0 15px; }
    .hero { min-height: auto; padding: 120px 20px 100px; gap: 64px; }
    h1 { font-size: clamp(42px, 13vw, 62px); letter-spacing: -1.8px; }
    h2 { font-size: clamp(36px, 11vw, 54px); letter-spacing: -1.5px; }
    .hero-lead { margin-top: 22px; }
    .hero-actions { align-items: flex-start; flex-direction: column; gap: 18px; }
    .primary-cta { width: 100%; }
    .monitor-window { border-radius: 16px; }
    .window-bar { height: 54px; padding: 0 14px; }
    .monitor-summary { grid-template-columns: 1fr 1fr; }
    .monitor-summary > div { min-height: 76px; padding: 14px; }
    .monitor-summary .summary-status { grid-column: 1 / -1; min-height: 62px; }
    .service-list { padding: 4px 12px; }
    .service-row { grid-template-columns: 60px 1fr 1fr; gap: 8px; min-height: 68px; }
    .response-time { display: none; }
    .uptime-line { grid-template-columns: repeat(6, 1fr); }
    .uptime-line i:nth-child(-n+6) { display: none; }
    .alert-toast-demo { left: -6px; bottom: -58px; width: 245px; }
    .window-footer { padding: 0 12px; }
    .channel-dots i:nth-child(n+3) { display: none; }
    .signal-strip { padding: 52px 20px; grid-template-columns: 1fr; }
    .signal-strip > div { padding: 24px 0; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.13); }
    .signal-strip p { grid-column: auto; margin-top: 38px; font-size: 36px; }
    .feature-story, .feature-lines, .how { padding: 90px 20px; }
    .feature-story { min-height: auto; gap: 70px; }
    .incident-visual { padding: 22px 18px; border-radius: 18px; }
    .incident-facts span { padding-right: 9px; }
    .feature-heading { margin-bottom: 58px; }
    .feature-line { grid-template-columns: 42px 1fr; padding: 27px 0; gap: 8px 12px; }
    .feature-line p { grid-column: 2; }
    .feature-line > b { display: none; }
    .how { min-height: auto; grid-template-columns: 1fr; gap: 70px; }
    .how-copy { position: static; }
    .steps li { grid-template-columns: 54px 1fr; }
    .final-cta { min-height: 680px; padding-inline: 20px; }
    .final-cta .primary-cta { width: auto; }
    .landing-footer { padding: 32px 20px; flex-wrap: wrap; gap: 18px; }
    .landing-footer p { order: 3; width: 100%; margin: 0; }
    .landing-footer > a:last-child { margin-right: auto; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
    .observe, .reveal { opacity: 1; transform: none; }
}