/* ═══════════════════════════════════════════════════════════
   SecureCall — stealthx.app
   Material Design 3 · Dark-first · Responsive
   ═══════════════════════════════════════════════════════════ */

/* ─── Design Tokens ─────────────────────────────────────── */
:root {
    /* MD3 Dark Palette */
    --bg-primary: #0B0B0F;
    --bg-secondary: #111118;
    --bg-surface: #16161D;
    --bg-surface-variant: #1C1C25;
    --bg-card: #1A1A22;
    --bg-card-hover: #22222C;
    --bg-elevated: #202028;

    /* Text */
    --text-primary: #E8E8F0;
    --text-secondary: #9898A8;
    --text-muted: #5C5C6C;
    --text-on-accent: #FFFFFF;

    /* Accent — SecureCall Purple/Indigo */
    --accent: #7C6CFF;
    --accent-light: #9D8FFF;
    --accent-dark: #5A4CD4;
    --accent-surface: rgba(124,108,255,0.08);
    --accent-glow: rgba(124,108,255,0.25);

    /* Semantic */
    --green: #34D399;
    --green-surface: rgba(52,211,153,0.08);
    --red: #F87171;
    --red-surface: rgba(248,113,113,0.08);
    --yellow: #FBBF24;
    --yellow-surface: rgba(251,191,36,0.08);
    --blue: #60A5FA;

    /* Borders */
    --border: rgba(255,255,255,0.06);
    --border-hover: rgba(255,255,255,0.12);
    --border-accent: rgba(124,108,255,0.3);

    /* Elevation */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.5);
    --shadow-glow: 0 0 40px var(--accent-glow);

    /* Shape */
    --radius-xs: 6px;
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Typography */
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* Animation */
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
    --duration: 0.2s;
    --duration-md: 0.35s;
    --duration-lg: 0.5s;

    /* Layout */
    --container: 1120px;
    --nav-height: 64px;
}

/* ─── Reset ─────────────────────────────────────────────── */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-size-adjust:100%}
body{font-family:var(--font);background:var(--bg-primary);color:var(--text-primary);line-height:1.6;overflow-x:hidden;min-height:100vh}
a{color:var(--accent-light);text-decoration:none;transition:color var(--duration) var(--ease)}
a:hover{color:var(--accent)}
img{max-width:100%;display:block;height:auto}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer}
::selection{background:var(--accent);color:white}

/* ─── Container ─────────────────────────────────────────── */
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
@media(min-width:768px){.container{padding:0 32px}}

/* ─── Typography ────────────────────────────────────────── */
.text-gradient{background:linear-gradient(135deg,var(--accent-light),var(--green));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.text-mono{font-family:var(--mono);font-size:0.85em;letter-spacing:-0.02em}
.section-label{display:inline-block;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:0.12em;color:var(--accent);background:var(--accent-surface);border:1px solid var(--border-accent);padding:6px 14px;border-radius:var(--radius-full);margin-bottom:16px}

.section-header{text-align:center;max-width:640px;margin:0 auto 64px}
.section-header h2{font-size:clamp(28px,4vw,44px);font-weight:800;letter-spacing:-0.03em;line-height:1.1;margin-bottom:16px}
.section-header p{font-size:17px;color:var(--text-secondary);line-height:1.7}

/* ─── Buttons ───────────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 24px;border-radius:var(--radius);font-weight:600;font-size:15px;border:none;transition:all var(--duration) var(--ease);text-decoration:none;white-space:nowrap}
.btn-primary{background:var(--accent);color:var(--text-on-accent);box-shadow:var(--shadow-glow)}
.btn-primary:hover{background:var(--accent-dark);color:white;transform:translateY(-1px);box-shadow:0 0 50px var(--accent-glow)}
.btn-outline{background:transparent;color:var(--text-primary);border:1px solid var(--border-hover)}
.btn-outline:hover{background:var(--bg-surface);color:var(--text-primary);border-color:var(--text-muted)}
.btn-ghost{background:transparent;color:var(--text-secondary);padding:8px 12px}
.btn-ghost:hover{color:var(--text-primary);background:var(--bg-surface)}
.btn-lg{padding:16px 32px;font-size:16px;border-radius:var(--radius-lg)}
.btn-sm{padding:8px 16px;font-size:13px}
.btn-block{width:100%;justify-content:center}
.btn svg{width:18px;height:18px;flex-shrink:0}

/* ─── Navigation ────────────────────────────────────────── */
.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;height:var(--nav-height);display:flex;align-items:center;transition:all var(--duration-md) var(--ease)}
.navbar.scrolled{background:rgba(11,11,15,0.85);backdrop-filter:blur(20px) saturate(1.5);border-bottom:1px solid var(--border)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;width:100%}
.nav-logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:var(--text-primary);letter-spacing:-0.02em}
.nav-logo:hover{color:var(--text-primary)}
.nav-logo svg{width:28px;height:28px;color:var(--accent)}
.nav-logo-img{width:32px;height:32px;border-radius:var(--radius-sm);object-fit:contain}
.nav-links{display:flex;align-items:center;gap:8px}
.nav-links a{color:var(--text-secondary);font-size:14px;font-weight:500;padding:8px 14px;border-radius:var(--radius-sm);transition:all var(--duration) var(--ease)}
.nav-links a:hover,.nav-links a.active{color:var(--text-primary);background:var(--bg-surface)}
.nav-cta{margin-left:8px}

.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;padding:8px}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--text-primary);transition:all 0.3s var(--ease)}
.nav-toggle.open span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}

/* ─── Hero ──────────────────────────────────────────────── */
.hero{position:relative;padding:140px 0 100px;min-height:100vh;display:flex;align-items:center;overflow:hidden}
.hero-inner{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.hero-content{max-width:560px}
.hero-badge{display:inline-flex;align-items:center;gap:6px;padding:6px 14px 6px 8px;background:var(--green-surface);border:1px solid rgba(52,211,153,0.2);border-radius:var(--radius-full);font-size:12px;font-weight:600;color:var(--green);margin-bottom:24px}
.hero-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--green);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:0.4}}
.hero h1{font-size:clamp(40px,6vw,64px);font-weight:800;line-height:1.05;letter-spacing:-0.04em;margin-bottom:20px}
.hero-subtitle{font-size:18px;color:var(--text-secondary);line-height:1.7;margin-bottom:32px}
.hero-actions{display:flex;gap:12px;margin-bottom:48px;flex-wrap:wrap}
.hero-stats{display:flex;gap:40px}
.hero-stat{display:flex;flex-direction:column;gap:2px}
.hero-stat-value{font-size:18px;font-weight:700;font-family:var(--mono)}
.hero-stat-label{font-size:12px;color:var(--text-muted);text-transform:uppercase;letter-spacing:0.06em}

.hero-visual{position:relative;display:flex;justify-content:center}
.hero-phone{width:280px;height:560px;background:var(--bg-surface);border:2px solid var(--border-hover);border-radius:36px;position:relative;overflow:hidden;box-shadow:var(--shadow-lg),var(--shadow-glow)}
.hero-phone::before{content:'';position:absolute;top:12px;left:50%;transform:translateX(-50%);width:100px;height:28px;background:var(--bg-primary);border-radius:var(--radius-full);z-index:2}
.hero-phone-content{position:absolute;inset:4px;border-radius:32px;background:linear-gradient(180deg,var(--bg-surface) 0%,var(--bg-primary) 100%);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:60px 24px 40px}
.hero-phone-lock{width:48px;height:48px;color:var(--green);animation:float 3s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
.hero-phone-text{font-size:14px;color:var(--text-secondary);text-align:center}
.hero-phone-enc{font-family:var(--mono);font-size:11px;color:var(--accent-light);letter-spacing:0.05em;opacity:0.7}
.hero-phone-bar{width:80%;height:4px;background:var(--accent-surface);border-radius:var(--radius-full);overflow:hidden;margin-top:8px}
.hero-phone-bar-fill{height:100%;width:65%;background:linear-gradient(90deg,var(--accent),var(--green));border-radius:var(--radius-full);animation:bar 2s ease-in-out infinite alternate}
@keyframes bar{0%{width:40%}100%{width:85%}}

.hero-glow{position:absolute;top:50%;right:-10%;width:600px;height:600px;background:radial-gradient(circle,var(--accent-glow) 0%,transparent 70%);transform:translateY(-50%);pointer-events:none;opacity:0.4}

/* ─── Features ──────────────────────────────────────────── */
.features{padding:120px 0;position:relative}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.feature-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:32px 28px;transition:all var(--duration-md) var(--ease);position:relative;overflow:hidden}
.feature-card::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,var(--accent),transparent);opacity:0;transition:opacity var(--duration-md) var(--ease)}
.feature-card:hover{background:var(--bg-card-hover);border-color:var(--border-hover);transform:translateY(-3px);box-shadow:var(--shadow-md)}
.feature-card:hover::before{opacity:1}
.feature-icon{width:44px;height:44px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius);margin-bottom:20px;color:var(--accent-light)}
.feature-icon.green{color:var(--green);background:var(--green-surface)}
.feature-icon.purple{color:var(--accent-light);background:var(--accent-surface)}
.feature-icon.blue{color:var(--blue);background:rgba(96,165,250,0.08)}
.feature-icon.red{color:var(--red);background:var(--red-surface)}
.feature-icon.yellow{color:var(--yellow);background:var(--yellow-surface)}
.feature-card h3{font-size:17px;font-weight:700;margin-bottom:10px;letter-spacing:-0.01em}
.feature-card p{font-size:14px;color:var(--text-secondary);line-height:1.7}

/* ─── How It Works ──────────────────────────────────────── */
.how-it-works{padding:120px 0;background:var(--bg-secondary)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;position:relative}
.steps::before{content:'';position:absolute;top:36px;left:calc(12.5% + 24px);right:calc(12.5% + 24px);height:2px;background:linear-gradient(90deg,var(--accent-surface),var(--accent),var(--accent-surface));z-index:0}
.step{text-align:center;position:relative;z-index:1}
.step-number{width:72px;height:72px;border-radius:50%;background:var(--bg-primary);border:2px solid var(--accent);display:flex;align-items:center;justify-content:center;margin:0 auto 20px;font-size:24px;font-weight:800;color:var(--accent-light)}
.step h3{font-size:16px;font-weight:700;margin-bottom:8px}
.step p{font-size:13px;color:var(--text-muted);line-height:1.6}

/* ─── Security Specs ────────────────────────────────────── */
.security-specs{padding:120px 0}
.specs-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.spec-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;display:flex;gap:16px;align-items:flex-start;transition:border-color var(--duration) var(--ease)}
.spec-card:hover{border-color:var(--border-hover)}
.spec-icon{width:40px;height:40px;flex-shrink:0;display:flex;align-items:center;justify-content:center;background:var(--accent-surface);border-radius:var(--radius-sm);color:var(--accent-light)}
.spec-content{flex:1}
.spec-label{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:0.1em;color:var(--text-muted);margin-bottom:4px}
.spec-value{font-size:17px;font-weight:700;font-family:var(--mono);margin-bottom:4px}
.spec-desc{font-size:13px;color:var(--text-muted)}

/* ─── Open Source ───────────────────────────────────────── */
.open-source{padding:120px 0;background:var(--bg-secondary)}
.oss-content{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.oss-text h2{font-size:clamp(28px,4vw,40px);font-weight:800;letter-spacing:-0.03em;margin-bottom:16px;line-height:1.1}
.oss-text p{font-size:16px;color:var(--text-secondary);line-height:1.8;margin-bottom:24px}
.oss-text .btn{margin-top:8px}
.oss-code{background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px;font-family:var(--mono);font-size:13px;line-height:1.8;color:var(--text-secondary);overflow-x:auto}
.oss-code .comment{color:var(--text-muted)}
.oss-code .keyword{color:var(--accent-light)}
.oss-code .string{color:var(--green)}
.oss-code .type{color:var(--yellow)}

/* ─── Pricing ───────────────────────────────────────────── */
.pricing{padding:120px 0}
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:stretch}
.pricing-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-xl);padding:36px 28px;display:flex;flex-direction:column;position:relative;transition:all var(--duration-md) var(--ease)}
.pricing-card:hover{border-color:var(--border-hover);transform:translateY(-2px)}
.pricing-card.featured{border-color:var(--accent);box-shadow:var(--shadow-glow)}
.pricing-badge{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--accent);color:white;font-size:11px;font-weight:700;padding:5px 16px;border-radius:var(--radius-full);letter-spacing:0.04em}
.pricing-tier{font-size:14px;font-weight:600;color:var(--text-muted);margin-bottom:12px;text-transform:uppercase;letter-spacing:0.06em}
.pricing-price{margin-bottom:24px}
.pricing-price .amount{font-size:44px;font-weight:800;letter-spacing:-0.03em}
.pricing-price .period{font-size:15px;color:var(--text-muted)}
.pricing-divider{height:1px;background:var(--border);margin-bottom:24px}
.pricing-features{flex:1;margin-bottom:28px}
.pricing-features li{padding:8px 0;font-size:14px;display:flex;align-items:center;gap:10px}
.pricing-features li.included{color:var(--text-primary)}
.pricing-features li.included::before{content:"\2713";width:18px;height:18px;display:flex;align-items:center;justify-content:center;background:var(--green-surface);color:var(--green);border-radius:50%;font-size:10px;font-weight:700;flex-shrink:0}
.pricing-features li.excluded{color:var(--text-muted)}
.pricing-features li.excluded::before{content:"\2715";width:18px;height:18px;display:flex;align-items:center;justify-content:center;background:var(--red-surface);color:var(--red);border-radius:50%;font-size:10px;font-weight:700;flex-shrink:0}

/* ─── FAQ ───────────────────────────────────────────────── */
.faq-section{padding:120px 0;background:var(--bg-secondary)}
.faq-list{max-width:720px;margin:0 auto}
.faq-item{border:1px solid var(--border);border-radius:var(--radius);margin-bottom:12px;overflow:hidden;transition:border-color var(--duration) var(--ease)}
.faq-item:hover{border-color:var(--border-hover)}
.faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;padding:20px 24px;background:none;border:none;color:var(--text-primary);font-size:15px;font-weight:600;text-align:left;cursor:pointer;transition:background var(--duration) var(--ease)}
.faq-question:hover{background:var(--bg-surface)}
.faq-question svg{width:20px;height:20px;color:var(--text-muted);transition:transform var(--duration-md) var(--ease);flex-shrink:0}
.faq-item.open .faq-question svg{transform:rotate(180deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height var(--duration-md) var(--ease)}
.faq-item.open .faq-answer{max-height:500px}
.faq-answer-inner{padding:0 24px 20px;font-size:14px;color:var(--text-secondary);line-height:1.8}

/* ─── CTA / Download ────────────────────────────────────── */
.cta{padding:120px 0;text-align:center;position:relative;overflow:hidden}
.cta::before{content:'';position:absolute;top:50%;left:50%;width:600px;height:600px;background:radial-gradient(circle,var(--accent-glow) 0%,transparent 70%);transform:translate(-50%,-50%);pointer-events:none;opacity:0.3}
.cta h2{font-size:clamp(32px,5vw,48px);font-weight:800;letter-spacing:-0.03em;margin-bottom:16px;position:relative}
.cta p{font-size:18px;color:var(--text-secondary);margin-bottom:40px;max-width:500px;margin-left:auto;margin-right:auto;position:relative}
.cta-buttons{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;position:relative}
.store-badge{display:inline-flex;align-items:center;gap:12px;background:var(--text-primary);color:var(--bg-primary);padding:14px 28px;border-radius:var(--radius);transition:all var(--duration) var(--ease);text-decoration:none}
.store-badge:hover{transform:translateY(-2px);color:var(--bg-primary);box-shadow:0 8px 30px rgba(255,255,255,0.15)}
.store-badge svg{width:24px;height:24px}
.store-badge-text small{display:block;font-size:10px;text-transform:uppercase;letter-spacing:0.1em}
.store-badge-text strong{display:block;font-size:17px}
.cta-note{font-size:13px;color:var(--text-muted);margin-top:20px;position:relative}

/* ─── Footer ────────────────────────────────────────────── */
.footer{padding:64px 0 32px;border-top:1px solid var(--border)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:48px}
.footer-brand p{font-size:14px;color:var(--text-muted);line-height:1.7;margin-top:12px;max-width:280px}
.footer-col h4{font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:0.08em;color:var(--text-primary);margin-bottom:16px}
.footer-col a{display:block;font-size:14px;color:var(--text-muted);padding:4px 0;transition:color var(--duration) var(--ease)}
.footer-col a:hover{color:var(--text-primary)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:24px;border-top:1px solid var(--border);font-size:13px;color:var(--text-muted)}

/* ─── Legal / Content Pages ─────────────────────────────── */
.page-content{max-width:760px;margin:0 auto;padding:120px 24px 80px}
.page-content h1{font-size:clamp(32px,5vw,44px);font-weight:800;letter-spacing:-0.03em;margin-bottom:8px}
.page-content .page-meta{font-size:14px;color:var(--text-muted);margin-bottom:40px;padding-bottom:28px;border-bottom:1px solid var(--border)}
.page-content h2{font-size:22px;font-weight:700;margin:40px 0 14px;letter-spacing:-0.01em}
.page-content h3{font-size:17px;font-weight:600;margin:28px 0 10px}
.page-content p{color:var(--text-secondary);margin-bottom:14px;line-height:1.8}
.page-content ul,.page-content ol{color:var(--text-secondary);padding-left:24px;margin-bottom:14px;list-style:disc}
.page-content ol{list-style:decimal}
.page-content li{margin-bottom:6px;line-height:1.7}
.page-content strong{color:var(--text-primary)}
.page-content a{text-decoration:underline;text-underline-offset:2px}
.page-content table{width:100%;border-collapse:collapse;margin:14px 0 20px}
.page-content th,.page-content td{text-align:left;padding:10px 14px;border:1px solid var(--border);font-size:14px}
.page-content th{background:var(--bg-surface);font-weight:600;color:var(--text-primary)}
.page-content td{color:var(--text-secondary)}
.page-content code{font-family:var(--mono);background:var(--bg-surface);padding:2px 6px;border-radius:4px;font-size:0.9em}

.back-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--accent-light);margin-bottom:28px}
.back-link:hover{color:var(--accent)}

/* ─── Tier Comparison Table ─────────────────────────────── */
.tier-table{width:100%;border-collapse:collapse;margin:24px 0}
.tier-table th{background:var(--bg-surface);padding:14px 16px;font-size:14px;font-weight:700;text-align:center;border:1px solid var(--border)}
.tier-table th:first-child{text-align:left}
.tier-table td{padding:12px 16px;border:1px solid var(--border);font-size:14px;text-align:center;color:var(--text-secondary)}
.tier-table td:first-child{text-align:left;color:var(--text-primary);font-weight:500}
.tier-table .check{color:var(--green);font-weight:700}
.tier-table .cross{color:var(--text-muted)}

/* ─── 404 Page ──────────────────────────────────────────── */
.page-404{display:flex;align-items:center;justify-content:center;min-height:80vh;text-align:center}
.page-404 h1{font-size:120px;font-weight:800;color:var(--accent);line-height:1}
.page-404 p{font-size:18px;color:var(--text-secondary);margin:16px 0 32px}

/* ─── Animations ────────────────────────────────────────── */
.reveal{opacity:0;transform:translateY(24px);transition:opacity var(--duration-lg) var(--ease),transform var(--duration-lg) var(--ease)}
.reveal.visible{opacity:1;transform:translateY(0)}
.reveal-delay-1{transition-delay:0.1s}
.reveal-delay-2{transition-delay:0.2s}
.reveal-delay-3{transition-delay:0.3s}
.reveal-delay-4{transition-delay:0.4s}

/* ─── Responsive ────────────────────────────────────────── */
@media(max-width:1024px){
    .hero-inner{grid-template-columns:1fr;text-align:center}
    .hero-content{max-width:100%;margin:0 auto}
    .hero-actions{justify-content:center}
    .hero-stats{justify-content:center}
    .hero-visual{margin-top:48px}
    .hero-glow{display:none}
    .features-grid{grid-template-columns:repeat(2,1fr)}
    .specs-grid{grid-template-columns:1fr}
    .oss-content{grid-template-columns:1fr}
    .oss-code{margin-top:0}
    .steps{grid-template-columns:repeat(2,1fr);gap:24px}
    .steps::before{display:none}
}
@media(max-width:768px){
    .nav-links{display:none;position:fixed;top:var(--nav-height);left:0;right:0;bottom:0;background:rgba(11,11,15,0.98);backdrop-filter:blur(20px);flex-direction:column;padding:24px;gap:4px;align-items:stretch}
    .nav-links.active{display:flex}
    .nav-links a{padding:14px 16px;font-size:16px}
    .nav-cta{margin-left:0;margin-top:16px}
    .nav-toggle{display:flex}
    .hero{padding:100px 0 60px;min-height:auto}
    .hero-phone{width:220px;height:440px}
    .features-grid,.pricing-grid{grid-template-columns:1fr}
    .steps{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr 1fr}
    .footer-bottom{flex-direction:column;gap:8px;text-align:center}
    .hero-stats{flex-wrap:wrap;gap:20px}
    .hero-actions{flex-direction:column;align-items:center}
    section{padding:80px 0}
    .features,.security-specs,.pricing,.open-source,.faq-section,.how-it-works,.cta{padding:80px 0}
}
@media(max-width:480px){
    .footer-grid{grid-template-columns:1fr}
    .hero h1{font-size:36px}
}