/* ═══════════════════════════════════════════════════════
   RVIRA LTD · shared design system
   Modern, minimal dark theme
   ═══════════════════════════════════════════════════════ */

:root{
    color-scheme:dark;
    --bg:#0b0b0f;
    --surface:#111117;
    --surface-2:#17171e;
    --surface-3:#1c1c24;
    --border:#22222b;
    --border-2:#2d2d38;
    --text:#f4f4f7;
    --text-2:#95959f;
    --text-3:#6c6c75;
    --text-dim:#474751;
    --accent:#2997ff;
    --accent-hover:#1a86ef;
    --accent-2:#bf5af2;
    --accent-soft:rgba(41,151,255,0.1);
    --accent-border:rgba(41,151,255,0.3);
    --accent-text:#5eb1ff;
    --success:#22c55e;
    --danger:#ef4444;
    --r-sm:6px;
    --r:10px;
    --r-lg:14px;
    --r-xl:18px;
    --r-pill:999px;
    --ease:cubic-bezier(0.2,0,0,1);
    --t:0.2s var(--ease);
    --t-slow:0.4s var(--ease);
    --wrap:1200px;
}

*{margin:0;padding:0;box-sizing:border-box}
html,body{font-family:'Inter',-apple-system,BlinkMacSystemFont,'SF Pro Display','Segoe UI',sans-serif;max-width:100vw;overflow-x:hidden}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
body{background:var(--bg);color:var(--text);min-height:100vh;font-size:15px;line-height:1.55;font-feature-settings:"cv02","cv03","cv04","cv11"}
::selection{background:var(--accent);color:#fff}
img{max-width:100%;display:block}

a{color:var(--accent-text);text-decoration:none;transition:color var(--t)}
a:hover{text-decoration:underline;text-underline-offset:2px}

*::-webkit-scrollbar{width:10px;height:10px}
*::-webkit-scrollbar-track{background:transparent}
*::-webkit-scrollbar-thumb{background:var(--border);border-radius:5px}
*::-webkit-scrollbar-thumb:hover{background:var(--border-2)}

/* CONTAINER */
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
@media(max-width:640px){.wrap{padding:0 16px}}

/* TYPOGRAPHY */
h1,h2,h3,h4{letter-spacing:-0.025em;line-height:1.15;color:var(--text)}
h1{font-size:clamp(2rem,5vw,3.5rem);font-weight:700}
h2{font-size:clamp(1.6rem,3.5vw,2.4rem);font-weight:700;margin-bottom:14px}
h3{font-size:1.2rem;font-weight:600}
h4{font-size:1rem;font-weight:600}
p{color:var(--text-2)}
.eyebrow{display:inline-flex;align-items:center;gap:6px;background:var(--accent-soft);border:1px solid var(--accent-border);color:var(--accent-text);padding:6px 14px;border-radius:var(--r-pill);font-size:0.78rem;font-weight:600;letter-spacing:-0.005em}
.eyebrow::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--accent)}

/* NAVBAR */
.nav{position:sticky;top:0;z-index:50;background:rgba(11,11,15,0.85);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--border)}
.nav-inner{max-width:var(--wrap);margin:0 auto;padding:16px 24px;display:flex;align-items:center;justify-content:space-between;gap:20px}
@media(max-width:640px){.nav-inner{padding:14px 16px}}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none}
.logo-icon{width:32px;height:32px;border-radius:8px;background:linear-gradient(135deg,var(--accent),var(--accent-2));display:flex;align-items:center;justify-content:center;color:#fff;font-size:0.9rem}
.logo-text{font-weight:700;font-size:1.02rem;letter-spacing:-0.02em;color:var(--text)}
.logo-text .dim{color:var(--text-3);font-weight:400}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{color:var(--text-2);font-size:0.88rem;font-weight:500;padding:8px 14px;border-radius:var(--r);transition:all var(--t);text-decoration:none;letter-spacing:-0.005em}
.nav-links a:hover{color:var(--text);background:var(--surface);text-decoration:none}
.nav-links a.active{color:var(--text);background:var(--surface-2)}
.nav-cta{margin-left:4px}
.nav-toggle{display:none;background:var(--surface);border:1px solid var(--border);color:var(--text);width:36px;height:36px;border-radius:var(--r);cursor:pointer;font-size:0.9rem;align-items:center;justify-content:center}
@media(max-width:820px){
    .nav-links{position:fixed;top:64px;left:16px;right:16px;flex-direction:column;align-items:stretch;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:8px;display:none;box-shadow:0 20px 40px rgba(0,0,0,0.4)}
    .nav-links.open{display:flex}
    .nav-links a{padding:12px 14px}
    .nav-toggle{display:flex}
    .nav-cta{margin-left:0;margin-top:4px}
}

/* BUTTONS */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 22px;min-height:42px;border-radius:var(--r-pill);font-size:0.9rem;font-weight:600;cursor:pointer;transition:all var(--t);border:1px solid transparent;white-space:nowrap;line-height:1;letter-spacing:-0.005em;text-decoration:none;font-family:inherit}
.btn i{font-size:0.85rem}
.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover);text-decoration:none;transform:translateY(-1px);box-shadow:0 8px 24px rgba(41,151,255,0.25)}
.btn-secondary{background:transparent;border-color:var(--border);color:var(--text)}
.btn-secondary:hover{background:var(--surface);border-color:var(--border-2);text-decoration:none}
.btn-lg{padding:14px 28px;min-height:48px;font-size:0.95rem}
.btn-sm{padding:7px 14px;min-height:32px;font-size:0.82rem}

/* CARDS */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-xl);padding:28px;transition:all var(--t)}
.card:hover{border-color:var(--border-2)}
.card-sm{padding:20px;border-radius:var(--r-lg)}

/* HERO */
.hero{padding:80px 0 80px;text-align:center;position:relative;overflow:hidden}
@media(max-width:640px){.hero{padding:56px 0 56px}}
.hero::before{content:'';position:absolute;top:-20%;left:50%;transform:translateX(-50%);width:800px;height:800px;background:radial-gradient(circle,rgba(41,151,255,0.08),transparent 60%);pointer-events:none;z-index:-1}
.hero-title{margin:22px auto 20px;max-width:820px}
.hero-title .grad{background:linear-gradient(135deg,var(--accent),var(--accent-2));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-lead{font-size:clamp(1rem,1.6vw,1.15rem);color:var(--text-2);max-width:640px;margin:0 auto 32px;line-height:1.65;letter-spacing:-0.005em}
.hero-cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* SECTION */
section{padding:72px 0}
@media(max-width:640px){section{padding:56px 0}}
.section-head{text-align:center;margin-bottom:48px}
.section-head .eyebrow{margin-bottom:16px}
.section-head p{max-width:600px;margin:14px auto 0;font-size:1rem;color:var(--text-2)}

/* STATS */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:56px}
@media(max-width:720px){.stats{grid-template-columns:repeat(2,1fr);gap:12px}}
.stats .stat{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:22px;text-align:left;transition:all var(--t)}
.stats .stat:hover{border-color:var(--border-2);transform:translateY(-2px)}
.stats .stat-num{font-size:1.9rem;font-weight:700;letter-spacing:-0.03em;color:var(--text);line-height:1.1;font-variant-numeric:tabular-nums}
.stats .stat-label{font-size:0.82rem;color:var(--text-2);margin-top:6px}

/* GRID */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
@media(max-width:900px){.grid-3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.grid-3,.grid-2{grid-template-columns:1fr}}

.feature{padding:28px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-xl);transition:all var(--t)}
.feature:hover{border-color:var(--border-2);transform:translateY(-2px)}
.feature-icon{width:44px;height:44px;border-radius:var(--r);background:var(--accent-soft);border:1px solid var(--accent-border);display:flex;align-items:center;justify-content:center;color:var(--accent);font-size:1rem;margin-bottom:18px}
.feature h3{margin-bottom:8px}
.feature p{color:var(--text-2);font-size:0.92rem;line-height:1.6}

.chip{display:inline-flex;align-items:center;gap:5px;padding:3px 10px;background:var(--surface-2);border:1px solid var(--border);color:var(--text-2);border-radius:var(--r-pill);font-size:0.74rem;font-weight:500;margin-right:4px}

/* CTA BAND */
.cta-band{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-xl);padding:56px 32px;text-align:center;position:relative;overflow:hidden}
.cta-band::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 50% 100%,rgba(41,151,255,0.1),transparent 70%);pointer-events:none}
.cta-band h2{margin-bottom:10px;position:relative}
.cta-band p{max-width:540px;margin:0 auto 24px;position:relative}
.cta-band .hero-cta{position:relative}

/* FOOTER */
footer{border-top:1px solid var(--border);padding:48px 0 28px;margin-top:40px;background:var(--bg)}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:32px;margin-bottom:32px}
@media(max-width:640px){.foot-grid{grid-template-columns:1fr;gap:24px}}
.foot-col h4{font-size:0.74rem;text-transform:uppercase;letter-spacing:0.1em;color:var(--text-3);margin-bottom:14px;font-weight:600}
.foot-col p,.foot-col a{font-size:0.88rem;color:var(--text-2);display:block;margin-bottom:6px;line-height:1.6}
.foot-col a:hover{color:var(--text)}
.foot-about{max-width:420px}
.foot-about p{margin-top:12px;font-size:0.86rem}
.foot-copy{border-top:1px solid var(--border);padding-top:20px;text-align:center;font-size:0.78rem;color:var(--text-3)}

/* FORMS */
.field{margin-bottom:16px}
label{display:block;margin-bottom:7px;font-weight:500;font-size:0.82rem;color:var(--text-2);letter-spacing:-0.005em}
input[type="text"],input[type="email"],input[type="password"],input[type="tel"],input[type="url"],input[type="search"],textarea,select{width:100%;padding:11px 14px;min-height:42px;background:var(--bg);border:1px solid var(--border);border-radius:var(--r);font-size:0.92rem;color:var(--text);transition:all var(--t);-webkit-appearance:none;font-family:inherit}
input:hover,select:hover,textarea:hover{border-color:var(--border-2)}
input:focus,select:focus,textarea:focus{border-color:var(--accent);outline:none;box-shadow:0 0 0 3px var(--accent-soft)}
textarea{min-height:120px;resize:vertical;line-height:1.5}
input::placeholder,textarea::placeholder{color:var(--text-dim)}
select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 10 10'%3E%3Cpath fill='%236c6c75' d='M5 7L1 3h8z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:32px;cursor:pointer}

/* LEGAL / LONG-FORM CONTENT */
.legal{max-width:820px;margin:0 auto;padding:56px 24px}
.legal h1{margin-bottom:8px;font-size:clamp(1.8rem,4vw,2.6rem)}
.legal .meta{color:var(--text-3);font-size:0.86rem;margin-bottom:32px}
.legal h2{font-size:1.35rem;margin-top:40px;margin-bottom:12px}
.legal h3{font-size:1.08rem;margin-top:24px;margin-bottom:10px}
.legal p,.legal li{color:var(--text-2);line-height:1.75;margin-bottom:14px;font-size:0.94rem}
.legal ul,.legal ol{padding-left:24px;margin-bottom:14px}
.legal strong,.legal b{color:var(--text);font-weight:600}
.legal a{color:var(--accent-text)}

/* CONTACT PAGE */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
@media(max-width:820px){.contact-grid{grid-template-columns:1fr}}
.info-list{display:flex;flex-direction:column;gap:18px;margin-top:12px}
.info-row{display:flex;gap:14px;align-items:flex-start}
.info-ico{width:38px;height:38px;border-radius:var(--r);background:var(--accent-soft);border:1px solid var(--accent-border);display:flex;align-items:center;justify-content:center;color:var(--accent);flex-shrink:0}
.info-row h4{font-size:0.82rem;color:var(--text-3);font-weight:500;margin-bottom:2px;letter-spacing:-0.005em}
.info-row p,.info-row a{color:var(--text);font-size:0.94rem;font-weight:500;line-height:1.5}
.info-row a:hover{color:var(--accent-text)}

/* LOGIN */
.auth-wrap{min-height:calc(100vh - 80px);display:flex;align-items:center;justify-content:center;padding:40px 24px}
.auth-card{width:100%;max-width:420px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-xl);padding:36px}
.auth-card h1{font-size:1.6rem;margin-bottom:6px;text-align:center}
.auth-card .sub{color:var(--text-2);text-align:center;font-size:0.9rem;margin-bottom:28px}

/* 404 */
.error-wrap{min-height:calc(100vh - 80px);display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px 24px;text-align:center}
.error-code{font-size:clamp(5rem,14vw,9rem);font-weight:800;letter-spacing:-0.05em;line-height:1;background:linear-gradient(135deg,var(--accent),var(--accent-2));-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:8px}

/* MOTION */
@media(prefers-reduced-motion:reduce){
    *,*::before,*::after{animation-duration:0.01ms!important;transition-duration:0.01ms!important}
}

@supports(padding:max(0px)){
    .nav-inner{padding-left:max(24px,env(safe-area-inset-left));padding-right:max(24px,env(safe-area-inset-right))}
}