/* =============================================
   MR TECH LAB — V3 "Premium Architect"
   Futuriste, sobre, orienté conversion
   ============================================= */

/* ---------- Design Tokens ---------- */
:root {
    --bg:         #050510;
    --bg-subtle:  #0a0a1e;
    --bg-card:    rgba(12, 12, 36, 0.55);
    --border:     rgba(255,255,255,0.06);
    --border-hi:  rgba(255,255,255,0.12);
    --accent:     #00d4ff;
    --accent-dim: rgba(0,212,255,0.12);
    --accent-glow:rgba(0,212,255,0.35);
    --warn:       #ff4d6a;
    --warn-dim:   rgba(255,77,106,0.12);
    --text:       #e8ecf4;
    --text-2:     rgba(232,236,244,0.55);
    --text-3:     rgba(232,236,244,0.3);
    --font:       'Inter', system-ui, -apple-system, sans-serif;
    --mono:       'JetBrains Mono', monospace;
    --r:          10px;
    --r-lg:       16px;
    --r-pill:     100px;
    --ease:       cubic-bezier(.25,.46,.45,.94);
    --dur:        .35s;
}

/* ---------- Reset ---------- */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scrollbar-width:thin;scrollbar-color:var(--accent) var(--bg)}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.65;overflow-x:hidden;-webkit-font-smoothing:antialiased}
::selection{background:var(--accent);color:var(--bg)}
a{color:inherit;text-decoration:none}
ul{list-style:none}
img{max-width:100%;display:block}

.container{max-width:1120px;margin:0 auto;padding:0 clamp(1rem,4vw,2rem)}

/* ---------- Reveal System (CSS-driven, JS adds classes) ---------- */
.reveal-hidden{opacity:0;transform:translateY(28px);transition:opacity .7s cubic-bezier(.25,.46,.45,.94),transform .7s cubic-bezier(.25,.46,.45,.94)}
.reveal-hidden.revealed{opacity:1;transform:translateY(0)}
/* Stagger children inside grids */
.grid .reveal-hidden:nth-child(2){transition-delay:.08s}
.grid .reveal-hidden:nth-child(3){transition-delay:.16s}
.grid .reveal-hidden:nth-child(4){transition-delay:.24s}

/* ---------- Card glow hover (21st.dev inspired) ---------- */
.card{position:relative;overflow:hidden}
.card::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at var(--mx,50%) var(--my,50%),rgba(0,212,255,.08),transparent 60%);opacity:0;transition:opacity .4s;pointer-events:none;z-index:0}
.card:hover::before{opacity:1}
/* Shine sweep on hover */
.card::after{content:'';position:absolute;inset:0;background:linear-gradient(105deg,transparent 40%,rgba(255,255,255,.03) 45%,rgba(255,255,255,.05) 50%,rgba(255,255,255,.03) 55%,transparent 60%);transform:translateX(-100%);transition:none;pointer-events:none;z-index:0}
.card:hover::after{transform:translateX(100%);transition:transform .7s ease}
.card>*{position:relative;z-index:1}

/* ---------- Canvas Background ---------- */
#bg-canvas{position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.25}

/* ---------- Header ---------- */
.header{position:fixed;top:0;left:0;right:0;z-index:100;padding:.9rem 0;transition:background var(--dur),padding var(--dur),backdrop-filter var(--dur)}
.header--scrolled{padding:.55rem 0;background:rgba(5,5,16,.85);backdrop-filter:blur(16px);border-bottom:1px solid var(--border)}
.header__inner{display:flex;align-items:center;justify-content:space-between;gap:1.5rem}
.logo{display:flex;align-items:center}
.logo__img{height:40px;width:auto}
.nav{display:flex;gap:1.8rem}
.nav__link{font-size:.82rem;font-weight:500;color:var(--text-2);transition:color var(--dur);position:relative}
.nav__link::after{content:'';position:absolute;bottom:-3px;left:0;width:0;height:1px;background:var(--accent);transition:width var(--dur)}
.nav__link:hover{color:var(--text)}
.nav__link:hover::after{width:100%}
.header__cta{display:inline-flex}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:4px}
.burger span{width:22px;height:2px;background:var(--text);border-radius:2px;transition:var(--dur)}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:.45rem;font-family:var(--font);font-size:.85rem;font-weight:600;border:none;border-radius:var(--r-pill);cursor:pointer;transition:all var(--dur) var(--ease);padding:.7rem 1.5rem;position:relative;overflow:hidden}
.btn--primary{background:var(--accent);color:var(--bg)}
.btn--primary:hover{box-shadow:0 0 28px var(--accent-glow);transform:translateY(-2px)}
.btn--ghost{background:transparent;color:var(--text);border:1px solid var(--border-hi)}
.btn--ghost:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-dim)}
.btn--outline{background:transparent;color:var(--accent);border:1px solid var(--accent-dim);width:100%;justify-content:center}
.btn--outline:hover{background:var(--accent-dim);border-color:var(--accent)}
.btn--lg{padding:.85rem 2rem;font-size:.92rem}
.btn--sm{padding:.5rem 1.1rem;font-size:.78rem}

/* ---------- Badge ---------- */
.badge{display:inline-flex;align-items:center;gap:.4rem;font-family:var(--mono);font-size:.72rem;color:var(--accent);letter-spacing:.06em;text-transform:uppercase;padding:.4rem 1rem;border:1px solid var(--accent-dim);border-radius:var(--r-pill);background:var(--accent-dim);margin-bottom:1.5rem}

/* ---------- Hero ---------- */
.hero{position:relative;z-index:2;min-height:100vh;display:flex;align-items:center;padding:7rem 0 4rem}
.hero__container{position:relative;z-index:1}
.hero__content{max-width:720px}
.bg-video{position:fixed;top:0;left:0;width:100%;height:100%;object-fit:cover;z-index:1;pointer-events:none;opacity:.35;mix-blend-mode:screen}
.hero__title{font-size:clamp(2.2rem,5.5vw,3.8rem);font-weight:800;line-height:1.1;letter-spacing:-.025em;margin-bottom:1.2rem}
.hero__accent{color:var(--accent);display:block;margin-top:.2em}
.hero__sub{font-size:clamp(.95rem,1.4vw,1.12rem);color:var(--text-2);max-width:560px;margin-bottom:2rem;line-height:1.7}
.hero__ctas{display:flex;gap:.8rem;flex-wrap:wrap;margin-bottom:2.5rem}
.hero__trust{display:flex;gap:1.5rem;flex-wrap:wrap}
.trust-item{display:flex;align-items:center;gap:.4rem;font-size:.78rem;color:var(--text-3)}
.trust-item svg{color:var(--accent);flex-shrink:0}
.hero__fade{position:absolute;bottom:0;left:0;right:0;height:180px;background:linear-gradient(to top,var(--bg),transparent);z-index:0;pointer-events:none}

/* ---------- Sections ---------- */
.section{position:relative;z-index:2;padding:clamp(4rem,9vw,7rem) 0}
.section--alt{background:var(--bg-subtle)}
.section__intro{max-width:620px;margin-bottom:clamp(2rem,4vw,3.5rem)}
.section__tag{display:block;font-family:var(--mono);font-size:.7rem;color:var(--accent);letter-spacing:.1em;text-transform:uppercase;margin-bottom:.8rem}
.section__title{font-size:clamp(1.7rem,3.5vw,2.6rem);font-weight:800;line-height:1.12;letter-spacing:-.015em;margin-bottom:.8rem}
.section__desc{font-size:.95rem;color:var(--text-2);line-height:1.7}
.section__cta{text-align:center;margin-top:3rem}
.section__note{text-align:center;font-size:.85rem;color:var(--text-3);margin-top:2rem}
.section__note a{color:var(--accent);text-decoration:underline}

/* ---------- Grid ---------- */
.grid{display:grid;gap:1.25rem}
.grid--4{grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}

/* ---------- Cards ---------- */
.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r-lg);padding:2rem;backdrop-filter:blur(10px);transition:border-color var(--dur),transform var(--dur),box-shadow var(--dur);will-change:transform}
.card:hover{border-color:var(--border-hi);transform:translateY(-4px)}
.card__icon{margin-bottom:1.2rem;color:var(--accent)}
.card__icon--alert{color:var(--warn)}
.card__title{font-size:1.08rem;font-weight:700;margin-bottom:.5rem}
.card__text{font-size:.85rem;color:var(--text-2);line-height:1.65}
.card__num{font-family:var(--mono);font-size:.72rem;color:var(--accent);letter-spacing:.06em;display:block;margin-bottom:1.2rem}
.card__points{margin-top:1.2rem;display:flex;flex-direction:column;gap:.45rem}
.card__points li{font-size:.82rem;color:var(--text-2);display:flex;align-items:center;gap:.5rem}
.card__points li::before{content:'';width:5px;height:5px;border-radius:50%;background:var(--accent);flex-shrink:0}

/* Solution featured */
.card--featured{border-color:var(--accent-dim);background:linear-gradient(135deg,rgba(0,212,255,.04),var(--bg-card))}
.card--featured:hover{box-shadow:0 0 40px rgba(0,212,255,.08);border-color:rgba(0,212,255,.3)}

/* Offer cards */
.card--offer{display:flex;flex-direction:column}
.card--offer .btn{margin-top:auto}
.card--offer .card__points{margin-bottom:1.2rem}
.card__for{font-size:.82rem;color:var(--text-2);line-height:1.6;margin-bottom:1.2rem;font-style:italic}
.card__delivery{display:flex;align-items:center;gap:.45rem;font-size:.78rem;color:var(--accent);margin-bottom:1.2rem;font-family:var(--mono)}
.card--offer-pop{border-color:var(--accent);position:relative}
.card--offer-pop::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,var(--accent),transparent)}
.card__badge{position:absolute;top:-1px;right:1.5rem;background:var(--accent);color:var(--bg);font-size:.65rem;font-weight:700;padding:.3rem .8rem;border-radius:0 0 var(--r) var(--r);letter-spacing:.04em;text-transform:uppercase}

/* Case study cards */
.card__label{font-family:var(--mono);font-size:.62rem;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);opacity:.7;display:block;margin-bottom:.8rem}
.card--case .card__icon{width:44px;height:44px;display:flex;align-items:center;justify-content:center;background:var(--accent-dim);border-radius:var(--r);color:var(--accent);margin-bottom:.6rem}
.card__meta{display:flex;flex-direction:column;gap:.5rem;margin-top:1rem;padding-top:1rem;border-top:1px solid var(--border)}
.card__meta li{display:flex;align-items:center;gap:.5rem;font-size:.78rem;color:var(--text-2)}
.card__meta li svg{color:var(--accent);flex-shrink:0}

/* Aside block */
.aside-block{margin-top:2rem;padding:1.5rem 2rem;border:1px dashed var(--border-hi);border-radius:var(--r-lg);background:rgba(0,212,255,.02)}
.aside-block__content h3{font-size:.95rem;font-weight:700;margin-bottom:.4rem}
.aside-block__content p{font-size:.84rem;color:var(--text-2);line-height:1.65}

/* ---------- Trust Bar ---------- */
.trust-bar{display:flex;justify-content:center;flex-wrap:wrap;gap:1.5rem;margin-top:3rem;padding-top:2rem;border-top:1px solid var(--border)}
.trust-bar__item{display:flex;align-items:center;gap:.5rem;font-size:.82rem;color:var(--text-2)}
.trust-bar__item svg{color:var(--accent)}

/* ---------- Steps ---------- */
.steps{display:flex;flex-direction:column}
.step{display:grid;grid-template-columns:auto 1fr auto;gap:1.5rem;align-items:center;padding:2rem 0;border-bottom:1px solid var(--border);transition:padding-left var(--dur)}
.step:hover{padding-left:.8rem}
.step__num{font-family:var(--mono);font-size:2rem;font-weight:700;color:var(--accent);min-width:60px}
.step__body h3{font-size:1.1rem;font-weight:700;margin-bottom:.3rem}
.step__body p{font-size:.85rem;color:var(--text-2);line-height:1.65}
.step__tag{font-family:var(--mono);font-size:.72rem;color:var(--accent);padding:.35rem .9rem;border:1px solid var(--accent-dim);border-radius:var(--r-pill);white-space:nowrap}

/* ---------- About ---------- */
.about{display:grid;grid-template-columns:.35fr .65fr;gap:3.5rem;align-items:center}
.about__photo{display:flex;justify-content:center}
.about__frame{width:180px;height:180px;border-radius:50%;border:2px solid var(--accent-dim);display:flex;align-items:center;justify-content:center;background:var(--bg-card);position:relative}
.about__frame::before{content:'';position:absolute;inset:-16px;border-radius:50%;background:radial-gradient(circle,var(--accent-dim),transparent 70%);animation:glow-pulse 5s ease-in-out infinite}
@keyframes glow-pulse{0%,100%{opacity:.4;transform:scale(1)}50%{opacity:.15;transform:scale(1.08)}}
.about__initials{font-family:var(--mono);font-size:3.2rem;font-weight:700;color:var(--accent);text-shadow:0 0 30px var(--accent-glow);position:relative;z-index:1}
.about__content p{font-size:.9rem;color:var(--text-2);line-height:1.7;margin-bottom:.8rem}
.about__content p:first-of-type{color:var(--text)}
.about__values{display:flex;gap:.6rem;margin-top:1.2rem;flex-wrap:wrap}
.value-tag{font-family:var(--mono);font-size:.72rem;padding:.4rem .9rem;border:1px solid var(--border-hi);border-radius:var(--r-pill);color:var(--text-3)}

/* ---------- CTA Final ---------- */
.cta-final{padding-bottom:clamp(4rem,9vw,7rem)}
.cta-box{text-align:center;padding:clamp(2.5rem,5vw,4.5rem);border:1px solid var(--border);border-radius:var(--r-lg);background:linear-gradient(135deg,rgba(0,212,255,.03),rgba(255,77,106,.02));backdrop-filter:blur(14px);position:relative;overflow:hidden}
.cta-box::before{content:'';position:absolute;top:-1px;left:50%;transform:translateX(-50%);width:200px;height:2px;background:linear-gradient(90deg,transparent,var(--accent),transparent)}
.cta-box__title{font-size:clamp(1.6rem,3.5vw,2.4rem);font-weight:800;letter-spacing:-.02em;margin-bottom:.8rem}
.cta-box__text{font-size:.95rem;color:var(--text-2);max-width:480px;margin:0 auto 1.5rem;line-height:1.7}
.cta-box__points{display:flex;justify-content:center;flex-wrap:wrap;gap:1.2rem;margin-bottom:2rem}
.cta-box__points span{display:flex;align-items:center;gap:.4rem;font-size:.82rem;color:var(--text-2)}
.cta-box__points svg{color:var(--accent)}

/* ---------- Footer ---------- */
.footer{position:relative;z-index:2;border-top:1px solid var(--border);padding:3rem 0 2rem}
.footer__top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:2rem;margin-bottom:2rem}
.footer__tagline{font-size:.82rem;color:var(--text-3);margin-top:.6rem;max-width:280px}
.footer__nav h4{font-size:.72rem;font-family:var(--mono);color:var(--text-3);letter-spacing:.08em;text-transform:uppercase;margin-bottom:.8rem}
.footer__nav a{display:block;font-size:.82rem;color:var(--text-2);margin-bottom:.5rem;transition:color var(--dur)}
.footer__nav a:hover{color:var(--accent)}
.footer__bottom{border-top:1px solid var(--border);padding-top:1.5rem;text-align:center;font-size:.72rem;color:var(--text-3)}

/* ---------- Cookie Banner ---------- */
.cookie-banner{position:fixed;bottom:0;left:0;right:0;z-index:300;padding:.8rem clamp(1rem,4vw,2rem);background:rgba(5,5,16,.94);backdrop-filter:blur(16px);border-top:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;gap:1rem;transition:transform .4s var(--ease)}
.cookie-banner--hidden{transform:translateY(100%)}
.cookie-banner__body strong{font-size:.82rem;display:block;margin-bottom:.25rem;color:var(--text)}
.cookie-banner__body p{font-size:.76rem;color:var(--text-3);line-height:1.5}
.cookie-banner a{color:var(--accent);text-decoration:underline}
.cookie-banner__btns{display:flex;gap:.5rem;flex-shrink:0}

/* ---------- Chatbot ---------- */
.chatbot-trigger{position:fixed;bottom:1.5rem;right:1.5rem;z-index:200;width:56px;height:56px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;background:var(--bg-subtle);border:1.5px solid rgba(0,212,255,.3);box-shadow:0 0 16px var(--accent-dim);transition:all var(--dur);opacity:0;transform:scale(0);pointer-events:none}
.chatbot-trigger--visible{opacity:1;transform:scale(1);pointer-events:auto}
.chatbot-trigger:hover{transform:scale(1.08);box-shadow:0 0 28px var(--accent-glow);border-color:var(--accent)}
.chatbot-trigger__avatar{width:36px;height:36px}
.chatbot-trigger__avatar svg{width:100%;height:100%}
.chatbot-trigger__pulse{position:absolute;inset:-4px;border-radius:50%;border:1px solid var(--accent);animation:pulse-ring 3s ease-in-out infinite}
@keyframes pulse-ring{0%,100%{transform:scale(1);opacity:.4}50%{transform:scale(1.18);opacity:0}}

.chatbot-panel{position:fixed;bottom:6.5rem;right:1.5rem;z-index:200;width:370px;max-height:500px;background:rgba(5,5,16,.94);border:1px solid var(--border);border-radius:var(--r-lg);backdrop-filter:blur(20px);display:flex;flex-direction:column;opacity:0;visibility:hidden;transform:translateY(16px) scale(.97);transition:all .3s var(--ease);overflow:hidden}
.chatbot-panel--open{opacity:1;visibility:visible;transform:translateY(0) scale(1)}
.chatbot-panel__head{display:flex;align-items:center;gap:.65rem;padding:.8rem 1rem;border-bottom:1px solid var(--border);background:rgba(0,212,255,.02)}
.chatbot-panel__head-avatar{width:32px;height:32px;flex-shrink:0}
.chatbot-panel__head-avatar svg{width:100%;height:100%}
.chatbot-panel__head strong{font-size:.82rem;display:block}
.chatbot-panel__online{font-family:var(--mono);font-size:.65rem;color:var(--accent)}
.chatbot-panel__close{margin-left:auto;background:none;border:none;color:var(--text-3);font-size:1.3rem;cursor:pointer;padding:.2rem;transition:color var(--dur)}
.chatbot-panel__close:hover{color:var(--text)}
.chatbot-panel__msgs{flex:1;overflow-y:auto;padding:1rem;display:flex;flex-direction:column;gap:.8rem;min-height:250px;scrollbar-width:thin;scrollbar-color:var(--border) transparent}
.chat-msg{max-width:85%;padding:.65rem .9rem;border-radius:var(--r);font-size:.82rem;line-height:1.55;animation:msg-in .3s ease-out}
@keyframes msg-in{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}
.chat-msg--bot{align-self:flex-start;background:var(--accent-dim);color:var(--text);border-bottom-left-radius:3px}
.chat-msg--user{align-self:flex-end;background:rgba(255,255,255,.06);color:var(--text);border-bottom-right-radius:3px}
.chat-msg--typing{align-self:flex-start;background:var(--accent-dim);padding:.65rem 1rem}
.typing-dots{display:flex;gap:4px}
.typing-dots span{width:5px;height:5px;border-radius:50%;background:var(--accent);animation:dot-bounce 1.4s infinite}
.typing-dots span:nth-child(2){animation-delay:.2s}
.typing-dots span:nth-child(3){animation-delay:.4s}
@keyframes dot-bounce{0%,60%,100%{opacity:.3;transform:translateY(0)}30%{opacity:1;transform:translateY(-4px)}}
.chatbot-panel__input{display:flex;gap:.4rem;padding:.8rem 1rem;border-top:1px solid var(--border)}
.chatbot-panel__input input{flex:1;background:rgba(255,255,255,.04);border:1px solid var(--border);border-radius:var(--r-pill);padding:.55rem .9rem;color:var(--text);font-family:var(--font);font-size:.82rem;outline:none;transition:border-color var(--dur)}
.chatbot-panel__input input::placeholder{color:var(--text-3)}
.chatbot-panel__input input:focus{border-color:var(--accent)}
.chatbot-panel__input button{width:36px;height:36px;border-radius:50%;background:var(--accent);border:none;color:var(--bg);cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:all var(--dur)}
.chatbot-panel__input button:hover{box-shadow:0 0 16px var(--accent-glow)}

/* ---------- Responsive ---------- */
@media(max-width:768px){
    .nav{position:fixed;top:0;right:-100%;width:70%;height:100vh;background:rgba(5,5,16,.97);backdrop-filter:blur(20px);flex-direction:column;justify-content:center;gap:1.8rem;padding:2rem;transition:right var(--dur);border-left:1px solid var(--border);z-index:101}
    .nav--open{right:0}
    .burger{display:flex}
    .header__cta{display:none}
    .hero__title{font-size:clamp(1.8rem,6vw,2.8rem)}
    .grid--4,.grid--3{grid-template-columns:1fr}
    .about{grid-template-columns:1fr;text-align:center;gap:2rem}
    .about__photo{order:-1}
    .about__values{justify-content:center}
    .footer__top{grid-template-columns:1fr 1fr;gap:1.5rem}
    .step{grid-template-columns:1fr;gap:.6rem}
    .step__num{font-size:1.5rem}
    .step__tag{justify-self:start}
    .chatbot-panel{right:.5rem;left:.5rem;width:auto;bottom:5.5rem}
    .chatbot-trigger{width:56px;height:56px;bottom:1rem;right:1rem}
    .chatbot-trigger__avatar{width:34px;height:34px}
    .cookie-banner{flex-direction:column;text-align:center;gap:.6rem}
    .trust-bar{gap:1rem}
    .cta-box__points{flex-direction:column;align-items:center;gap:.6rem}
}
@media(max-width:480px){
    .footer__top{grid-template-columns:1fr}
    .hero__trust{flex-direction:column;gap:.5rem}
}