/* Opps Cloud — AI back-office SaaS. Dark "tech" theme, brand palette + gradient.
   Same class contract as the original light theme — HTML untouched. */
:root{
  --bg:#0A1122;            /* page base — deep navy-slate                      */
  --bg-alt:#0D1730;        /* alternating sections                             */
  --surface:#101B36;       /* cards                                            */
  --surface-2:#0C1428;     /* inputs, wells                                    */
  --line:rgba(148,163,184,.16);   /* card borders                              */
  --line-soft:rgba(148,163,184,.09);
  --navy:#0E2350;          /* brand navy (kept for gradient/accents)           */
  --navy-700:#16306B;
  --brand-blue:#1E4FD0;
  --blue:#2563EB;
  --blue-700:#1D4FD7;
  --cyan:#2BA6E6;
  --teal:#2DD4BF;
  --ink:#E8EEFA;           /* body text on dark                                */
  --head:#F7FAFF;          /* headings                                         */
  --muted:#93A5C4;         /* secondary text                                   */
  --faint:#64748B;
  --white:#fff;
  --grad:linear-gradient(135deg,#1E4FD0,#2BA6E6,#2DD4BF);
  --radius:14px;
  --radius-lg:20px;
  --shadow:0 10px 30px rgba(2,8,26,.45);
  --shadow-lg:0 22px 50px rgba(2,8,26,.6);
  --glow-blue:0 0 0 1px rgba(43,166,230,.35),0 8px 40px rgba(30,79,208,.25);
  --wrap:1160px;
  --font-head:'Poppins',system-ui,sans-serif;
  --font-body:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  --font-mono:ui-monospace,'Cascadia Code','JetBrains Mono',Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font-body);color:var(--ink);background:var(--bg);line-height:1.6;font-size:17px;-webkit-font-smoothing:antialiased}
::selection{background:rgba(43,166,230,.35);color:#fff}
h1,h2,h3{font-family:var(--font-head);color:var(--head);line-height:1.15;margin:0 0 .5em}
h1{font-size:clamp(2.1rem,4.6vw,3.4rem);font-weight:800;letter-spacing:-.5px}
h2{font-size:clamp(1.7rem,3.2vw,2.4rem);font-weight:700;letter-spacing:-.3px}
h3{font-size:1.18rem;font-weight:600}
p{margin:0 0 1rem}
a{color:var(--cyan);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto;display:block}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 22px}
.skip-link{position:absolute;left:-999px;top:0;background:var(--navy);color:#fff;padding:10px 16px;z-index:200;border-radius:0 0 8px 0}
.skip-link:focus{left:8px;top:8px}
.eyebrow{font-family:var(--font-mono);text-transform:uppercase;letter-spacing:2px;font-weight:600;font-size:.74rem;color:var(--teal);margin:0 0 .6rem}
.eyebrow::before{content:"// ";opacity:.65}
.eyebrow--navy{color:var(--cyan)}
.badge{display:inline-block;font-family:var(--font-mono);font-weight:600;font-size:.6rem;letter-spacing:.6px;text-transform:uppercase;color:var(--teal);background:rgba(45,212,191,.1);border:1px solid rgba(45,212,191,.4);padding:.14rem .5rem;border-radius:6px;vertical-align:middle;margin-left:.3rem}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;font-family:var(--font-head);font-weight:600;font-size:1rem;padding:.78rem 1.4rem;border-radius:10px;border:1.5px solid transparent;cursor:pointer;transition:.18s ease;white-space:nowrap;text-decoration:none}
.btn:hover{text-decoration:none}
.btn--lg{padding:.98rem 1.8rem;font-size:1.05rem}
.btn--block{width:100%}
.btn--blue{background:var(--blue);color:#fff;border-color:rgba(96,165,250,.4);box-shadow:0 6px 24px rgba(37,99,235,.35)}
.btn--blue:hover{background:var(--blue-700);transform:translateY(-1px);box-shadow:0 10px 32px rgba(37,99,235,.5)}
.btn--navy{background:var(--surface);color:#fff;border-color:var(--line)}
.btn--navy:hover{border-color:var(--cyan)}
.btn--white{background:#fff;color:var(--navy)}
.btn--white:hover{background:#dbe6ff}
.btn--ghost-navy{background:transparent;color:var(--ink);border-color:var(--line)}
.btn--ghost-navy:hover{border-color:var(--cyan);color:#fff;background:rgba(43,166,230,.08)}
.btn--ghost-white{background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}
.btn--ghost-white:hover{background:rgba(255,255,255,.08);border-color:#fff}

/* Top bar */
.topbar{background:#070D1C;color:#93A5C4;font-size:.85rem;border-bottom:1px solid var(--line-soft)}
.topbar__row{display:flex;align-items:center;gap:.7rem;min-height:38px;flex-wrap:wrap}
.topbar__sep{opacity:.35}
.topbar__spacer{flex:1}
.topbar__link{color:#fff;font-weight:600}
.topbar__link:hover{color:var(--teal);text-decoration:none}

/* Header */
.header{position:sticky;top:0;z-index:100;background:rgba(10,17,34,.82);backdrop-filter:saturate(140%) blur(10px);border-bottom:1px solid var(--line-soft);transition:box-shadow .2s}
.header.scrolled{box-shadow:0 8px 30px rgba(2,8,26,.6)}
.header__row{display:flex;align-items:center;gap:1.2rem;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:.55rem}
.brand:hover{text-decoration:none}
.brand__mark{height:40px;width:40px}
.brand__word{font-family:var(--font-head);font-weight:800;font-size:1.32rem;letter-spacing:-.4px;line-height:1}
.brand__opps{color:#fff}
.brand__opps--light{color:#fff}
.brand__cloud{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;margin-left:.12em}
.nav{display:flex;gap:1.4rem;margin-left:2.2rem}
.nav a{font-family:var(--font-head);font-weight:600;color:var(--muted);font-size:.96rem;padding:.3rem 0;border-bottom:2px solid transparent;white-space:nowrap}
.nav a:hover{color:#fff;border-color:var(--teal);text-decoration:none}
.header__cta{display:flex;align-items:center;gap:.6rem;margin-left:auto}
.header__login{font-family:var(--font-head);font-weight:600;color:var(--muted);font-size:.96rem;padding:.3rem .2rem;white-space:nowrap}
.header__login:hover{color:#fff;text-decoration:none}
.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px;margin-left:auto}
.hamburger span{width:26px;height:3px;background:#fff;border-radius:2px;transition:.2s}
.hamburger[aria-expanded="true"] span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.hamburger[aria-expanded="true"] span:nth-child(2){opacity:0}
.hamburger[aria-expanded="true"] span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

/* Hero */
.hero{background:#070D1C;color:#fff;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:
  radial-gradient(60% 90% at 88% -8%,rgba(45,212,191,.22),transparent 60%),
  radial-gradient(55% 80% at 4% 110%,rgba(30,79,208,.4),transparent 60%),
  radial-gradient(40% 60% at 65% 50%,rgba(43,166,230,.14),transparent 70%),
  linear-gradient(rgba(148,163,184,.05) 1px,transparent 1px),
  linear-gradient(90deg,rgba(148,163,184,.05) 1px,transparent 1px);
  background-size:auto,auto,auto,44px 44px,44px 44px;
  -webkit-mask-image:linear-gradient(#000 55%,transparent);
  mask-image:linear-gradient(#000 55%,transparent);
  pointer-events:none}
.hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--grad);opacity:.9}
.hero__grid{display:grid;grid-template-columns:1.1fr .9fr;gap:3rem;align-items:center;padding:4.4rem 22px 4.8rem;position:relative;z-index:1}
.hero__copy h1{color:#fff}
.hero .eyebrow{color:var(--teal)}
.hero__sub{font-size:1.12rem;color:#B9C8E6;max-width:34rem}
.hero__actions{display:flex;gap:.8rem;flex-wrap:wrap;margin:1.7rem 0 1.5rem}
.hero__trust{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:.5rem 1.2rem;padding:0;margin:0;color:#C9D6F0;font-weight:500;font-size:.95rem}
.hero__trust li{display:flex;align-items:center;gap:.5rem}

/* Hero chat mock */
.hero__panel{position:relative}
.chatmock{background:rgba(16,27,54,.65);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg),inset 0 1px 0 rgba(255,255,255,.06);backdrop-filter:blur(8px);overflow:hidden}
.chatmock__bar{display:flex;align-items:center;gap:.6rem;padding:.85rem 1rem;background:rgba(255,255,255,.04);border-bottom:1px solid var(--line-soft)}
.chatmock__bar img{border-radius:8px;background:#fff;padding:3px}
.chatmock__id strong{display:block;font-family:var(--font-head);font-weight:600;font-size:.95rem;color:#fff}
.chatmock__id span{font-size:.78rem;color:#93A5C4;display:flex;align-items:center;gap:.35rem;font-family:var(--font-mono)}
.chatmock__id .dot{width:.5rem;height:.5rem;border-radius:50%;background:var(--teal);box-shadow:0 0 0 3px rgba(45,212,191,.2),0 0 12px rgba(45,212,191,.8)}
.chatmock__body{padding:1rem;display:flex;flex-direction:column;gap:.55rem}
.bubble{max-width:84%;padding:.6rem .85rem;border-radius:14px;font-size:.9rem;line-height:1.45}
.bubble--in{align-self:flex-start;background:rgba(232,238,250,.95);color:#1B2A41;border-bottom-left-radius:5px}
.bubble--out{align-self:flex-end;background:var(--grad);color:#fff;border-bottom-right-radius:5px}
.chatmock__input{display:flex;align-items:center;justify-content:space-between;gap:.6rem;margin:.2rem 1rem 1rem;padding:.6rem .85rem;background:rgba(12,20,40,.8);border:1px solid var(--line);border-radius:999px;color:#7E92B8;font-size:.85rem}
.chatmock__input .send{width:1.7rem;height:1.7rem;border-radius:50%;background:var(--grad);flex:0 0 auto;display:grid;place-items:center}
.chatmock__input .send::after{content:"";width:.9rem;height:.9rem;background:#fff;-webkit-mask:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="black" d="M2 21l21-9L2 3v7l15 2-15 2z"/></svg>') center/contain no-repeat;mask:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="black" d="M2 21l21-9L2 3v7l15 2-15 2z"/></svg>') center/contain no-repeat}

/* Trust strip */
.strip{background:var(--bg-alt);color:#fff;border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.strip__row{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;text-align:center;padding:1.5rem 22px}
.strip__item{display:flex;flex-direction:column;gap:.1rem}
.strip__num{font-family:var(--font-head);font-weight:700;font-size:1.5rem;line-height:1.2;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.strip__lbl{color:var(--muted);font-size:.86rem;font-family:var(--font-mono)}

/* Sections */
.section{padding:4.8rem 0}
.section--alt{background:var(--bg-alt);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.section__head{text-align:center;max-width:46rem;margin:0 auto 2.8rem}
.section__lead{color:var(--muted);font-size:1.08rem}
.grid{display:grid;gap:1.4rem}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--4{grid-template-columns:repeat(4,1fr)}

/* Feature pillars */
.pillar{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.6rem;box-shadow:var(--shadow);transition:.18s;position:relative;overflow:hidden}
.pillar::before{content:"";position:absolute;left:0;top:0;height:2px;width:100%;background:var(--grad);opacity:0;transition:.18s}
.pillar:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(43,166,230,.45)}
.pillar:hover::before{opacity:1}
.pillar__ic{font-size:2rem;display:inline-grid;place-items:center;width:3.2rem;height:3.2rem;border-radius:12px;background:var(--surface-2);border:1px solid var(--line);margin-bottom:.7rem}
.pillar h3{margin-bottom:.35rem}
.pillar p{color:var(--muted);margin:0;font-size:.96rem}

/* Capability cards */
.cap{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.6rem;box-shadow:var(--shadow);transition:.18s}
.cap:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(43,166,230,.45)}
.cap__ic{font-size:1.7rem;display:inline-block;margin-bottom:.5rem}
.cap h3{margin-bottom:.35rem}
.cap p{color:var(--muted);margin:0;font-size:.96rem}

/* How it works */
.steps{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(3,1fr);gap:1.6rem;counter-reset:s}
.step{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:2.2rem 1.6rem 1.6rem;box-shadow:var(--shadow)}
.step__num{position:absolute;top:-1.1rem;left:1.4rem;width:2.6rem;height:2.6rem;border-radius:10px;background:var(--grad);color:#fff;display:grid;place-items:center;font-family:var(--font-mono);font-weight:700;font-size:1.05rem;box-shadow:0 8px 24px rgba(30,79,208,.5)}
.step h3{margin:.3rem 0 .35rem}
.step p{color:var(--muted);margin:0;font-size:.97rem}

/* Solutions tracks */
.track{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.6rem;box-shadow:var(--shadow);transition:.18s}
.track:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(43,166,230,.45)}
.track__ic{font-size:1.7rem;display:inline-block;margin-bottom:.5rem}
.track h3{margin-bottom:.35rem;font-size:1.08rem}
.track p{color:var(--muted);margin:0;font-size:.95rem}

/* Pricing */
.pricing{align-items:stretch}
.plan{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:1.8rem;box-shadow:var(--shadow);position:relative}
.plan--featured{border-color:rgba(43,166,230,.55);box-shadow:var(--glow-blue)}
.plan__flag{position:absolute;top:-.85rem;left:50%;transform:translateX(-50%);background:var(--grad);color:#fff;font-family:var(--font-mono);font-weight:600;font-size:.7rem;letter-spacing:.6px;padding:.3rem .9rem;border-radius:999px;white-space:nowrap;box-shadow:0 6px 20px rgba(30,79,208,.5)}
.plan__name{font-size:1.4rem;font-weight:700;margin-bottom:.15rem}
.plan__sub{display:block;font-size:.76rem;font-weight:600;color:var(--cyan);letter-spacing:.6px;text-transform:uppercase;margin-top:.15rem;font-family:var(--font-mono)}
.plan__tag{color:var(--muted);font-size:.95rem;margin-bottom:1.1rem}
.plan__list{list-style:none;padding:0;margin:0 0 1.4rem;flex:1}
.plan__list li{position:relative;padding:.42rem 0 .42rem 1.7rem;font-size:.96rem;border-bottom:1px solid var(--line-soft)}
.plan__list li:last-child{border-bottom:0}
.plan__list li::before{content:"";position:absolute;left:0;top:.62rem;width:1.1rem;height:1.1rem;background:var(--teal);-webkit-mask:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="black" d="M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z"/></svg>') center/contain no-repeat;mask:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="black" d="M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z"/></svg>') center/contain no-repeat}
.pricing__note{text-align:center;color:var(--muted);font-size:.98rem;margin:1.8rem auto 0;max-width:40rem}

/* Contact */
.contact__grid{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:start}
.contact__list{list-style:none;padding:0;margin:1.4rem 0 0}
.contact__list li{display:flex;gap:.9rem;align-items:flex-start;padding:.7rem 0;border-bottom:1px solid var(--line-soft)}
.contact__list .ic-check{margin-top:.25rem;background:var(--teal)}
.contact__list strong{display:block;font-family:var(--font-head);color:var(--head);font-weight:600}
.contact__list span{color:var(--muted);font-size:.95rem}
.contact__alt{margin-top:1.2rem;color:var(--muted)}

/* Cards / forms */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:1.8rem}
.card--form{position:relative;overflow:hidden}
.card--form::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad)}
.card__title{font-size:1.4rem;margin-bottom:.2rem}
.card__sub{color:var(--muted);margin-bottom:1.1rem;font-size:.95rem}
.form input,.form textarea{width:100%;padding:.8rem .9rem;margin-bottom:.7rem;border:1.5px solid var(--line);border-radius:10px;font:inherit;color:var(--ink);background:var(--surface-2)}
.form input::placeholder,.form textarea::placeholder{color:var(--faint)}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(43,166,230,.18)}
.form__fine{font-size:.85rem;color:var(--muted);margin:.6rem 0 0;text-align:center}
.form__msg{margin:.7rem 0 0;padding:.7rem .9rem;border-radius:10px;background:rgba(45,212,191,.12);color:var(--teal);font-size:.92rem;font-weight:500;border:1px solid rgba(45,212,191,.35)}
.form__msg--err{background:rgba(248,113,113,.1);color:#FCA5A5;border-color:rgba(248,113,113,.35)}

/* Footer */
.footer{background:#070D1C;color:#93A5C4;border-top:1px solid var(--line-soft)}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr 1fr;gap:2rem;padding:3.4rem 22px 2.4rem}
.footer__logo{display:inline-flex;align-items:center;gap:.5rem;margin-bottom:1rem}
.footer__logo:hover{text-decoration:none}
.footer__logo .brand__word{font-size:1.2rem}
.footer__brand p{font-size:.95rem;color:#7E92B8;max-width:30ch}
.footer__meta{font-size:.88rem;color:#64748B;font-family:var(--font-mono)}
.footer__meta a{color:#A9BBD9}
.footer__col h3{color:#fff;font-size:1rem;margin-bottom:.8rem;font-weight:600}
.footer__col a,.footer__col span{display:block;color:#8DA0C2;padding:.28rem 0;font-size:.95rem}
.footer__col a:hover{color:#fff}
.footer__bar{border-top:1px solid var(--line-soft)}
.footer__bar-row{display:flex;justify-content:space-between;gap:1rem;padding:1.1rem 22px;font-size:.85rem;color:#64748B;flex-wrap:wrap}
.footer__by{color:#A9BBD9;font-family:var(--font-head);font-weight:600}

/* Chat FAB */
.chat-fab{position:fixed;right:20px;bottom:20px;z-index:120;display:flex;align-items:center;gap:.5rem;background:var(--grad);color:#fff;border:0;border-radius:999px;padding:.85rem 1.2rem;font-family:var(--font-head);font-weight:600;cursor:pointer;box-shadow:0 12px 34px rgba(30,79,208,.45);transition:.18s}
.chat-fab:hover{transform:translateY(-2px);box-shadow:0 18px 46px rgba(30,79,208,.6)}

/* Inline icon glyphs (dependency-free) */
[class^="ic-"]{width:1.15em;height:1.15em;display:inline-block;flex:0 0 auto}
.ic-check{-webkit-mask:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="black" d="M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z"/></svg>') center/contain no-repeat;mask:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="black" d="M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z"/></svg>') center/contain no-repeat;background:var(--teal)}
.ic-chat{-webkit-mask:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="black" d="M20 2H4a2 2 0 0 0-2 2v18l4-4h14a2 2 0 0 0 2-2V4a2 2 0 0 0-2-2"/></svg>') center/contain no-repeat;mask:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="black" d="M20 2H4a2 2 0 0 0-2 2v18l4-4h14a2 2 0 0 0 2-2V4a2 2 0 0 0-2-2"/></svg>') center/contain no-repeat;background:#fff}

/* Responsive */
@media(max-width:980px){
  .grid--4{grid-template-columns:1fr 1fr}
  .footer__grid{grid-template-columns:1.4fr 1fr 1fr}
}
@media(max-width:900px){
  .hero__grid,.contact__grid{grid-template-columns:1fr}
  .hero__panel{order:-1;max-width:460px}
  .grid--3{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr;gap:2rem}
  .nav,.header__cta{display:none}
  .nav.open{display:flex;position:absolute;top:72px;left:0;right:0;flex-direction:column;background:var(--bg-alt);padding:1rem 22px;box-shadow:var(--shadow);border-bottom:1px solid var(--line);margin-left:0}
  .header__cta.open{display:flex;position:absolute;top:calc(72px + 232px);left:0;right:0;flex-direction:column;background:var(--bg-alt);padding:0 22px 1.2rem;margin-left:0}
  .hamburger{display:flex}
}
@media(max-width:560px){
  body{font-size:16px}
  .strip__row{grid-template-columns:1fr 1fr;gap:1.2rem}
  .grid--3,.grid--4{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr 1fr}
  .topbar__item:not(.topbar__link){display:none}
  .chat-fab__label{display:none}
  .chat-fab{padding:.9rem}
}
@media(max-width:380px){
  .footer__grid{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){
  *{scroll-behavior:auto!important;transition:none!important}
}