:root {
    --bg: #07090a;
    --bg-alt: #0b0f10;
    --surface: #111718;
    --surface-2: #172021;
    --border: #1f2b2c;
    --text: #e9edef;
    --muted: #8696a0;
    --primary: #25D366;      /* WhatsApp yeşili */
    --primary-dark: #128C7E; /* WhatsApp koyu yeşil */
    --accent: #34B7F1;       /* WhatsApp mavi tik */
    --gradient: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
    --radius: 16px;
    --shadow: 0 20px 60px -20px rgba(37, 211, 102, .35);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Inter', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
.wa-svg { flex-shrink: 0; }

.container { width: min(1200px, 92%); margin: 0 auto; }
.narrow { width: min(800px, 92%); }
.muted { color: var(--muted); }
.center { text-align: center; }
.mt-1 { margin-top: .75rem; }
.mt-2 { margin-top: 2rem; }

.gradient-text {
    background: linear-gradient(135deg, #25D366 0%, #5effa8 50%, #25D366 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.bg-glow {
    position: fixed; inset: 0; z-index: -1; pointer-events: none;
    background:
        radial-gradient(600px circle at 15% 10%, rgba(37, 211, 102, .13), transparent 60%),
        radial-gradient(500px circle at 85% 30%, rgba(18, 140, 126, .12), transparent 60%);
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
    padding: .7rem 1.3rem; border-radius: 10px;
    font-family: inherit; font-weight: 600; font-size: .95rem; line-height: 1.4;
    background: transparent; color: var(--text);
    border: 1px solid transparent; cursor: pointer;
    transition: all .25s ease;
}
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none !important; }
.btn-lg { padding: .95rem 1.8rem; font-size: 1rem; }
.btn-block { width: 100%; }
.btn-primary { background: var(--gradient); color: #fff; box-shadow: var(--shadow); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 25px 60px -15px rgba(37, 211, 102, .6); }
.btn-outline { border-color: var(--border); background: var(--surface); }
.btn-outline:hover { border-color: var(--primary); background: var(--surface-2); }
.btn-ghost { color: var(--muted); }
.btn-ghost:hover { color: var(--text); }

/* ---------- Navbar ---------- */
.navbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    padding: 1.1rem 0; transition: all .3s ease;
}
.navbar.scrolled {
    background: rgba(7, 9, 10, .78);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    padding: .75rem 0;
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.logo { font-weight: 800; font-size: 1.35rem; display: flex; align-items: center; gap: .55rem; }
.logo-icon {
    width: 34px; height: 34px; display: grid; place-items: center;
    border-radius: 10px; background: var(--gradient); color: #fff;
    box-shadow: 0 6px 20px -6px rgba(37, 211, 102, .7);
}
.nav-links { display: flex; gap: 2rem; }
.nav-links a { color: var(--muted); font-weight: 500; font-size: .95rem; transition: color .2s; }
.nav-links a:hover { color: var(--text); }
.nav-links .nav-mobile-only { display: none; }
.nav-actions { display: flex; gap: .5rem; }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; flex-direction: column; gap: 5px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--text); transition: .3s; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero { padding: 10rem 0 5rem; text-align: center; }
.hero-inner { display: flex; flex-direction: column; align-items: center; }
.pill {
    display: inline-flex; align-items: center; gap: .45rem; padding: .4rem 1rem; border-radius: 999px;
    background: rgba(37, 211, 102, .1); border: 1px solid rgba(37, 211, 102, .35);
    color: #7ff0ae; font-size: .85rem; font-weight: 500; margin-bottom: 1.5rem;
}
.pill .wa-svg { color: var(--primary); }
.hero h1 { font-size: clamp(2.4rem, 6vw, 4.5rem); line-height: 1.08; font-weight: 800; letter-spacing: -.03em; }
.hero-sub { max-width: 640px; margin: 1.5rem auto 2.2rem; font-size: 1.15rem; color: var(--muted); }
.hero-cta { display: flex; gap: 1rem; flex-wrap: wrap; justify-content: center; }
.hero-stats { display: flex; gap: 3.5rem; margin-top: 3.5rem; flex-wrap: wrap; justify-content: center; }
.hero-stats div { display: flex; flex-direction: column; }
.hero-stats strong { font-size: 2rem; font-weight: 800; }
.hero-stats span { color: var(--muted); font-size: .9rem; }

/* ---------- Casus & Hacker Siber Sahne ---------- */
.cyber-svg { color: var(--primary); }
.btn-primary .cyber-svg { color: #fff; }
.feature-icon .cyber-svg { color: var(--primary); filter: drop-shadow(0 0 10px rgba(37, 211, 102, .45)); }

.hero-cyber-stage {
    width: 100%; max-width: 1020px; margin-top: 4rem;
    display: grid; grid-template-columns: 1fr 1.25fr 1fr; gap: 1.5rem; align-items: center;
    position: relative;
}
.hero-cyber-stage::before {
    content: ''; position: absolute; top: 50%; left: 10%; right: 10%; height: 2px;
    background: linear-gradient(90deg, transparent, rgba(37, 211, 102, .55), rgba(52, 183, 241, .55), rgba(37, 211, 102, .55), transparent);
    z-index: 0; pointer-events: none;
}

.cyber-node {
    position: relative; z-index: 1;
    background: radial-gradient(circle at top, rgba(37, 211, 102, .12), transparent 65%), var(--surface);
    border: 1px solid var(--border); border-radius: 20px;
    padding: 1.65rem 1.35rem; text-align: center;
    box-shadow: 0 25px 70px -25px rgba(0, 0, 0, .75);
    transition: transform .3s ease, border-color .3s ease;
}
.cyber-node:hover {
    transform: translateY(-5px);
    border-color: rgba(37, 211, 102, .55);
}
.cyber-avatar {
    width: 88px; height: 88px; margin: 0 auto 1rem; position: relative;
    border-radius: 24px; display: grid; place-items: center;
    background: linear-gradient(145deg, rgba(37, 211, 102, .16), rgba(18, 140, 126, .06));
    border: 1px solid rgba(37, 211, 102, .4);
    box-shadow: inset 0 0 24px rgba(37, 211, 102, .15), 0 12px 30px -10px rgba(37, 211, 102, .35);
}
.cyber-avatar-alt {
    background: linear-gradient(145deg, rgba(52, 183, 241, .15), rgba(37, 211, 102, .08));
    border-color: rgba(52, 183, 241, .45);
}
.cyber-status-dot {
    position: absolute; bottom: -4px; right: -4px;
    width: 16px; height: 16px; border-radius: 50%;
    background: var(--primary); border: 3px solid var(--surface);
    box-shadow: 0 0 12px var(--primary);
}
.cyber-node-info {
    display: flex; flex-direction: column; gap: .25rem; margin-bottom: 1rem;
}
.cyber-tag {
    display: inline-block; align-self: center;
    font-size: .7rem; font-weight: 700; letter-spacing: .09em;
    color: #7ff0ae; background: rgba(37, 211, 102, .1);
    border: 1px solid rgba(37, 211, 102, .3);
    padding: .2rem .65rem; border-radius: 999px; margin-bottom: .25rem;
}
.cyber-node-info strong { font-size: 1.08rem; font-weight: 800; }
.cyber-node-info small { color: var(--muted); font-size: .82rem; }
.cyber-code-line {
    background: #080c0d; border: 1px solid var(--border); border-radius: 10px;
    padding: .48rem .75rem; font-size: .76rem; color: #5effa8;
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    letter-spacing: .04em;
}

/* Merkez Siber Radar */
.cyber-node-center {
    padding: 2rem 1.5rem;
    border-color: rgba(37, 211, 102, .45);
    background: radial-gradient(circle at center, rgba(37, 211, 102, .16), var(--surface) 70%);
    box-shadow: 0 35px 90px -25px rgba(37, 211, 102, .35);
}
.cyber-radar-wrap {
    width: 190px; height: 190px; margin: 0 auto 1.35rem;
    position: relative; display: grid; place-items: center;
}
.cyber-radar-ring {
    position: absolute; border-radius: 50%;
    border: 1px dashed rgba(37, 211, 102, .35);
}
.cyber-radar-ring.r1 { inset: 0; animation: radarSpin 18s linear infinite; }
.cyber-radar-ring.r2 { inset: 24px; border-style: solid; border-color: rgba(37, 211, 102, .22); }
.cyber-radar-ring.r3 { inset: 48px; border-color: rgba(52, 183, 241, .35); animation: radarSpin 12s linear infinite reverse; }
.cyber-radar-sweep {
    position: absolute; inset: 8px; border-radius: 50%;
    background: conic-gradient(from 0deg, rgba(37, 211, 102, .32), transparent 40%);
    animation: radarSpin 4s linear infinite;
}
@keyframes radarSpin { to { transform: rotate(360deg); } }

.cyber-radar-core {
    position: relative; z-index: 2;
    width: 74px; height: 74px; border-radius: 50%;
    background: var(--gradient); color: #fff;
    display: grid; place-items: center;
    box-shadow: 0 0 0 8px rgba(37, 211, 102, .14), 0 0 35px rgba(37, 211, 102, .65);
}
.cyber-float-ico {
    position: absolute; z-index: 3;
    width: 38px; height: 38px; border-radius: 11px;
    background: var(--surface-2); border: 1px solid rgba(37, 211, 102, .45);
    display: grid; place-items: center;
    box-shadow: 0 8px 20px rgba(0, 0, 0, .5);
    animation: cyberFloat 3.2s ease-in-out infinite;
}
.cyber-float-ico.f1 { top: -4px; left: 6px; animation-delay: 0s; }
.cyber-float-ico.f2 { top: -4px; right: 6px; animation-delay: .8s; }
.cyber-float-ico.f3 { bottom: -4px; left: 6px; animation-delay: 1.6s; }
.cyber-float-ico.f4 { bottom: -4px; right: 6px; animation-delay: 2.4s; }
@keyframes cyberFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}

.cyber-center-badges {
    display: flex; flex-wrap: wrap; justify-content: center; gap: .45rem;
}
.cyber-center-badges span {
    font-size: .75rem; font-weight: 600; color: var(--text);
    background: rgba(7, 9, 10, .7); border: 1px solid var(--border);
    padding: .28rem .65rem; border-radius: 999px;
}
.cyber-center-badges i { color: var(--primary); font-style: normal; margin-right: .2rem; }

/* ---------- Sections ---------- */
.section { padding: 6rem 0; }
.section-alt { background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 3.5rem; }
.eyebrow { color: var(--primary); font-weight: 600; font-size: .85rem; text-transform: uppercase; letter-spacing: .12em; }
.section-head h2 { font-size: clamp(1.9rem, 4vw, 2.8rem); font-weight: 800; letter-spacing: -.02em; margin: .5rem 0 .75rem; line-height: 1.15; }

.card {
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 2rem; transition: all .3s ease;
}
.card:hover { border-color: rgba(37, 211, 102, .5); transform: translateY(-4px); }

/* Features */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.feature-icon {
    width: 52px; height: 52px; display: grid; place-items: center; font-size: 1.5rem;
    border-radius: 12px; background: rgba(37, 211, 102, .1); border: 1px solid rgba(37, 211, 102, .3);
    margin-bottom: 1.2rem;
}
.feature h3 { font-size: 1.15rem; margin-bottom: .5rem; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; position: relative; }
.steps::before {
    content: ''; position: absolute; top: 28px; left: 12%; right: 12%; height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary), var(--primary-dark), transparent); opacity: .45;
}
.step { text-align: center; position: relative; }
.step-no {
    width: 56px; height: 56px; margin: 0 auto 1.2rem; display: grid; place-items: center;
    border-radius: 50%; background: var(--bg); border: 2px solid var(--primary);
    font-weight: 800; color: var(--primary); box-shadow: 0 0 30px rgba(37, 211, 102, .35);
}
.step h3 { font-size: 1.1rem; margin-bottom: .5rem; }

/* Pricing */
.pricing-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; align-items: stretch; }
.price-card { position: relative; display: flex; flex-direction: column; }
.price-card h3 { font-size: 1.1rem; color: var(--muted); font-weight: 600; }
.price { margin: 1rem 0 .25rem; display: flex; align-items: baseline; gap: .35rem; flex-wrap: wrap; }
.price strong { font-size: 2.2rem; font-weight: 800; letter-spacing: -.02em; }
.price span { color: var(--muted); }
.price-note { font-size: .85rem; color: var(--primary); min-height: 1.4em; margin-bottom: 1.5rem; }
.feature-list { flex: 1; margin-bottom: 2rem; }
.feature-list li { padding: .45rem 0 .45rem 1.7rem; position: relative; font-size: .95rem; }
.feature-list li::before {
    content: '✓'; position: absolute; left: 0; top: .5rem;
    width: 18px; height: 18px; display: grid; place-items: center; font-size: .7rem; font-weight: 700;
    border-radius: 50%; background: rgba(37, 211, 102, .15); color: var(--primary);
}
.price-card.featured {
    border-color: var(--primary);
    background: linear-gradient(180deg, rgba(37, 211, 102, .1), var(--surface) 60%);
    box-shadow: var(--shadow);
    transform: scale(1.03);
}
.price-card.featured:hover { transform: scale(1.03) translateY(-4px); }
.badge {
    position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
    padding: .3rem .9rem; border-radius: 999px; background: var(--gradient);
    font-size: .75rem; font-weight: 700; white-space: nowrap; color: #fff;
}

/* FAQ */
.faq { display: flex; flex-direction: column; gap: .8rem; }
.faq-item { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; transition: border-color .3s; }
.faq-item.open { border-color: rgba(37, 211, 102, .5); }
.faq-q {
    width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 1rem;
    padding: 1.2rem 1.5rem; background: none; border: 0; color: var(--text);
    font: 600 1rem 'Inter', sans-serif; text-align: left; cursor: pointer;
}
.faq-icon { font-size: 1.4rem; color: var(--primary); transition: transform .3s; }
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.faq-a p { padding: 0 1.5rem 1.3rem; color: var(--muted); }

/* CTA */
.cta-box {
    text-align: center; padding: 4.5rem 2rem; border-radius: 24px;
    background: radial-gradient(circle at top, rgba(37, 211, 102, .2), transparent 70%), var(--surface);
    border: 1px solid var(--border);
}
.cta-icons-row {
    display: inline-flex; align-items: center; justify-content: center; gap: 1.25rem;
    margin-bottom: 1.5rem;
}
.cta-sub-ico {
    width: 54px; height: 54px; border-radius: 16px;
    background: var(--surface-2); border: 1px solid rgba(37, 211, 102, .35);
    display: grid; place-items: center;
    box-shadow: 0 10px 25px -8px rgba(0, 0, 0, .5);
}
.cta-icon {
    width: 80px; height: 80px; margin: 0; display: grid; place-items: center;
    border-radius: 50%; background: var(--gradient); color: #fff;
    box-shadow: 0 0 0 10px rgba(37, 211, 102, .1), 0 0 0 20px rgba(37, 211, 102, .05);
}
.cta-box h2 { font-size: clamp(2rem, 4vw, 2.8rem); font-weight: 800; line-height: 1.15; }
.cta-box p { margin: .75rem 0 2rem; font-size: 1.1rem; }

/* Footer */
.footer { border-top: 1px solid var(--border); padding: 4rem 0 0; background: var(--bg-alt); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 2rem; }
.footer h4 { font-size: .95rem; margin-bottom: 1rem; }
.footer-grid a:not(.logo):not(.btn) { display: block; color: var(--muted); font-size: .9rem; padding: .25rem 0; transition: color .2s; }
.footer-grid a:not(.logo):not(.btn):hover { color: var(--text); }
.footer-wa .wa-svg { color: var(--primary); }
.footer-bottom { border-top: 1px solid var(--border); margin-top: 3rem; padding: 1.5rem 0; color: var(--muted); font-size: .85rem; text-align: center; }
.disclaimer { font-size: .75rem; opacity: .7; margin-top: .4rem; }

/* Sabit WhatsApp butonu */
.wa-float {
    position: fixed; right: 24px; bottom: 24px; z-index: 200;
    width: 60px; height: 60px; border-radius: 50%;
    display: grid; place-items: center;
    background: #25D366; color: #fff;
    box-shadow: 0 10px 30px -5px rgba(37, 211, 102, .6);
    transition: transform .25s ease;
}
.wa-float::before {
    content: ''; position: absolute; inset: 0; border-radius: 50%;
    background: #25D366; z-index: -1; animation: pulse 2s infinite;
}
.wa-float:hover { transform: scale(1.08); }
.wa-float-tip {
    position: absolute; right: 72px; white-space: nowrap;
    background: var(--surface); border: 1px solid var(--border); color: var(--text);
    padding: .45rem .85rem; border-radius: 8px; font-size: .85rem; font-weight: 600;
    opacity: 0; transform: translateX(8px); transition: all .25s ease; pointer-events: none;
}
.wa-float:hover .wa-float-tip { opacity: 1; transform: none; }
@keyframes pulse { 0% { transform: scale(1); opacity: .6; } 100% { transform: scale(1.6); opacity: 0; } }

/* Reveal animation */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
    .pricing-grid { grid-template-columns: repeat(2, 1fr); }
    .price-card.featured { transform: none; }
    .price-card.featured:hover { transform: translateY(-4px); }
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .steps { grid-template-columns: repeat(2, 1fr); row-gap: 3rem; }
    .steps::before { display: none; }
}
@media (max-width: 900px) {
    .hero-cyber-stage {
        grid-template-columns: 1fr 1fr;
        gap: .75rem;
        max-width: 540px;
        margin-top: 2.4rem;
    }
    .hero-cyber-stage::before { display: none; }
    .cyber-node-center {
        grid-column: 1 / -1;
        order: -1;
        padding: 1.35rem 1rem;
    }
    .cyber-radar-wrap {
        width: 148px;
        height: 148px;
        margin-bottom: .95rem;
    }
    .cyber-radar-ring.r2 { inset: 18px; }
    .cyber-radar-ring.r3 { inset: 36px; }
    .cyber-radar-core { width: 58px; height: 58px; }
    .cyber-radar-core svg { width: 32px; height: 32px; }
    .cyber-float-ico { width: 32px; height: 32px; border-radius: 9px; }
    .cyber-float-ico svg { width: 18px; height: 18px; }
    .cyber-center-badges { gap: .35rem; }
    .cyber-center-badges span { font-size: .68rem; padding: .22rem .55rem; }

    .cyber-node-side {
        padding: 1rem .7rem;
        border-radius: 16px;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
    }
    .cyber-node-side .cyber-avatar {
        width: 56px;
        height: 56px;
        border-radius: 16px;
        margin-bottom: .6rem;
    }
    .cyber-node-side .cyber-avatar svg { width: 34px; height: 34px; }
    .cyber-node-side .cyber-status-dot { width: 13px; height: 13px; bottom: -2px; right: -2px; }
    .cyber-node-side .cyber-tag { font-size: .58rem; padding: .15rem .45rem; letter-spacing: .04em; }
    .cyber-node-side .cyber-node-info { margin-bottom: .6rem; gap: .15rem; }
    .cyber-node-side .cyber-node-info strong { font-size: .86rem; line-height: 1.25; }
    .cyber-node-side .cyber-node-info small { font-size: .7rem; line-height: 1.3; }
    .cyber-node-side .cyber-code-line {
        font-size: .6rem;
        padding: .35rem .4rem;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
}
@media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .nav-actions .btn-ghost { display: none; }
    .nav-links {
        position: fixed; top: 64px; left: 0; right: 0; flex-direction: column; gap: 0;
        background: rgba(7, 9, 10, .97); backdrop-filter: blur(14px);
        border-bottom: 1px solid var(--border);
        max-height: 0; overflow: hidden; transition: max-height .35s ease;
    }
    .nav-links.open { max-height: 400px; }
    .nav-links a { padding: 1rem 4%; border-top: 1px solid var(--border); }
    .nav-links .nav-mobile-only { display: block; color: var(--primary); }
    .nav-actions { margin-left: auto; }
    .nav-inner { gap: 1rem; }
    .hero { padding: 7.5rem 0 3.5rem; }
    .hero-sub { font-size: 1.02rem; margin: 1.2rem auto 1.8rem; }
    .features-grid, .pricing-grid, .steps { grid-template-columns: 1fr; }
    .section { padding: 4rem 0; }
    .section-head { margin-bottom: 2.5rem; }
    .card { padding: 1.5rem; }
    .cta-box { padding: 3rem 1.25rem; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
    .navbar { padding: .75rem 0; }
    .logo { font-size: 1.2rem; }
    .nav-actions .btn-primary { padding: .5rem .85rem; font-size: .82rem; box-shadow: none; }
    .nav-links { top: 58px; }
    .pill { font-size: .75rem; padding: .35rem .75rem; text-align: center; }
    .hero h1 { font-size: 2.15rem; }
    .hero-cta { flex-direction: column; width: 100%; gap: .75rem; }
    .hero-cta .btn { width: 100%; }
    .hero-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: .5rem; width: 100%; margin-top: 2.2rem; }
    .hero-stats strong { font-size: 1.3rem; }
    .hero-stats span { font-size: .75rem; line-height: 1.3; }
    .price strong { font-size: 2rem; }
    .faq-q { padding: 1rem 1.1rem; font-size: .95rem; }
    .faq-a p { padding: 0 1.1rem 1.1rem; }
    .footer-grid { grid-template-columns: 1fr; }
    .wa-float { right: 16px; bottom: 16px; width: 54px; height: 54px; }
    .wa-float-tip { display: none; }
}