/* ============================================================
   Third Octopus — shared design system
   Clean, light, modern enterprise SaaS
   ============================================================ */

/* ---- Tokens ---- */
:root{
  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'IBM Plex Sans', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;

  --bg: #ffffff;
  --bg-soft: #f4f7fb;
  --bg-tint: #eef3fb;
  --ink-bg: #081222;        /* dark sections */
  --ink-bg-2: #0d1b30;

  --ink: #0a1626;           /* primary text */
  --ink-2: #41506580;       /* not used directly */
  --muted: #51617a;         /* secondary text */
  --muted-2: #8593a8;       /* tertiary text */
  --line: #e5eaf2;
  --line-strong: #d3dbe8;

  --brand: #1f54e8;         /* primary blue */
  --brand-ink: color-mix(in srgb, var(--brand) 70%, #050f33);
  --brand-soft: color-mix(in srgb, var(--brand) 12%, var(--bg));
  --accent: #ff6a4d;        /* coral */
  --accent-soft: #ffe9e3;
  --teal: #10c2c9;

  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;
  --shadow-sm: 0 1px 2px rgba(10,22,38,.06), 0 1px 3px rgba(10,22,38,.05);
  --shadow: 0 8px 24px -10px rgba(10,22,38,.18), 0 2px 6px rgba(10,22,38,.05);
  --shadow-lg: 0 30px 70px -30px rgba(10,22,38,.32), 0 8px 24px -12px rgba(10,22,38,.14);

  --maxw: 1180px;
  --nav-h: 72px;
}

/* dark theme (tweak) */
:root[data-theme="dark"]{
  --bg: #081222;
  --bg-soft: #0d1b30;
  --bg-tint: #112341;
  --ink: #eef3fb;
  --muted: #9fb0c8;
  --muted-2: #6b7d96;
  --line: #1c2c45;
  --line-strong: #25395a;
  --accent-soft: #3a1e18;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.4);
  --shadow: 0 10px 30px -12px rgba(0,0,0,.6);
  --shadow-lg: 0 40px 80px -30px rgba(0,0,0,.7);
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 16px); }
body{
  margin:0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  line-height: 1.55;
}
img{ max-width:100%; display:block; }
a{ color: inherit; text-decoration: none; }
button{ font-family: inherit; cursor: pointer; }
::selection{ background: var(--brand); color:#fff; }

/* ---- Layout ---- */
.container{ width:100%; max-width: var(--maxw); margin:0 auto; padding:0 28px; }
.section{ padding: 104px 0; }
.section.tight{ padding: 72px 0; }
.section-soft{ background: var(--bg-soft); }
.section-ink{ background: var(--ink-bg); color:#eef3fb; }
.section-ink .muted{ color:#9fb0c8; }

/* ---- Type ---- */
.display{ font-family: var(--font-display); font-weight:600; letter-spacing:-.02em; line-height:1.04; }
h1,h2,h3,h4{ font-family: var(--font-display); font-weight:600; letter-spacing:-.02em; line-height:1.08; margin:0; }
.h-xl{ font-size: clamp(2.6rem, 5.4vw, 4.3rem); }
.h-lg{ font-size: clamp(2.1rem, 3.6vw, 3.1rem); }
.h-md{ font-size: clamp(1.55rem, 2.4vw, 2.1rem); }
.h-sm{ font-size: 1.22rem; }
p{ margin:0; }
.lead{ font-size: clamp(1.08rem, 1.5vw, 1.32rem); color: var(--muted); line-height:1.6; }
.muted{ color: var(--muted); }
.text-balance{ text-wrap: balance; }
.text-pretty{ text-wrap: pretty; }

.eyebrow{
  font-family: var(--font-mono);
  font-size:.72rem; font-weight:500;
  letter-spacing:.18em; text-transform:uppercase;
  color: var(--brand);
  display:inline-flex; align-items:center; gap:.6em;
}
.eyebrow.on-ink{ color: var(--teal); }
.eyebrow::before{ content:""; width:22px; height:1.5px; background: currentColor; opacity:.6; display:inline-block; }

/* ---- Buttons ---- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:.55em;
  font-weight:500; font-size:.96rem;
  padding:.78em 1.4em; border-radius:999px;
  border:1px solid transparent; white-space:nowrap;
  transition: transform .18s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease, color .2s ease;
}
.btn svg{ width:1.05em; height:1.05em; }
.btn-primary{ background: var(--brand); color:#fff; box-shadow: 0 8px 18px -8px rgba(31,84,232,.7); }
.btn-primary:hover{ transform: translateY(-2px); box-shadow: 0 14px 26px -10px rgba(31,84,232,.7); }
.btn-dark{ background: var(--ink); color:#fff; }
.btn-dark:hover{ transform: translateY(-2px); box-shadow: var(--shadow); }
.btn-ghost{ background: transparent; color: var(--ink); border-color: var(--line-strong); }
.btn-ghost:hover{ border-color: var(--ink); transform: translateY(-2px); }
.btn-ghost.on-ink{ color:#fff; border-color:#2a3d5c; }
.btn-ghost.on-ink:hover{ border-color:#fff; }
.btn-accent{ background: var(--accent); color:#fff; box-shadow: 0 8px 18px -8px rgba(255,106,77,.7); }
.btn-accent:hover{ transform: translateY(-2px); box-shadow: 0 14px 26px -10px rgba(255,106,77,.7); }
.btn-lg{ font-size:1.02rem; padding:.95em 1.7em; }
.btn-link{ color: var(--brand); font-weight:500; display:inline-flex; align-items:center; gap:.4em; }
.btn-link svg{ width:1em; height:1em; transition: transform .18s ease; }
.btn-link:hover svg{ transform: translateX(4px); }

/* ---- Chips / badges ---- */
.chip{
  display:inline-flex; align-items:center; gap:.45em;
  font-size:.82rem; font-weight:500;
  padding:.4em .8em; border-radius:999px;
  background: var(--bg-soft); border:1px solid var(--line);
  color: var(--muted);
}
.chip.brand{ background: var(--brand-soft); border-color: transparent; color: var(--brand-ink); }
.chip.on-ink{ background:#0f2138; border-color:#1f3454; color:#bcd0ea; }
.chip-dot{ width:7px; height:7px; border-radius:50%; background: var(--teal); }

.tag-row{ display:flex; flex-wrap:wrap; gap:8px; }
.tag{
  font-family: var(--font-mono); font-size:.74rem; letter-spacing:.02em;
  padding:.35em .7em; border-radius:7px;
  background: var(--bg); border:1px solid var(--line); color: var(--muted);
}

/* ---- Cards ---- */
.card{
  background: var(--bg); border:1px solid var(--line);
  border-radius: var(--radius); padding:30px;
  box-shadow: var(--shadow-sm);
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.card.hover:hover{ transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--line-strong); }
.card-ink{ background: var(--ink-bg-2); border:1px solid #1c2c45; border-radius: var(--radius); padding:30px; }

/* ---- Grid helpers ---- */
.grid{ display:grid; gap:24px; }
.g-2{ grid-template-columns: repeat(2,1fr); }
.g-3{ grid-template-columns: repeat(3,1fr); }
.g-4{ grid-template-columns: repeat(4,1fr); }
.flex{ display:flex; }
.center{ align-items:center; }
.between{ justify-content:space-between; }
.wrap{ flex-wrap:wrap; }
.gap-sm{ gap:10px; }
.gap{ gap:18px; }
.gap-lg{ gap:32px; }

/* ---- Icon tile ---- */
.itile{
  width:52px; height:52px; border-radius:14px;
  display:grid; place-items:center;
  background: var(--brand-soft); color: var(--brand);
  font-size:1.4rem;
}
.itile.accent{ background: var(--accent-soft); color: var(--accent); }
.itile.ink{ background:#10233e; color:var(--teal); }

/* ---- Stat ---- */
.stat .num{ font-family: var(--font-display); font-weight:600; font-size: clamp(2rem,3vw,2.8rem); letter-spacing:-.02em; line-height:1; }
.stat .lbl{ font-size:.86rem; color: var(--muted); margin-top:8px; }

/* ---- Section heading block ---- */
.shead{ max-width: 660px; }
.shead.center{ margin:0 auto; text-align:center; }
.shead .eyebrow{ margin-bottom:18px; }
.shead p{ margin-top:18px; }

/* ============================================================
   Navigation
   ============================================================ */
.nav-wrap{ position:sticky; top:0; z-index:100; }
.nav{
  height: var(--nav-h);
  display:flex; align-items:center; justify-content:space-between; gap:24px;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px);
  border-bottom:1px solid transparent;
  transition: border-color .25s ease, background .25s ease;
}
.nav.scrolled{ border-bottom-color: var(--line); }
.brand{ display:flex; align-items:center; gap:11px; font-family:var(--font-display); font-weight:600; font-size:1.12rem; letter-spacing:-.02em; }
.brand .mark{ width:34px; height:34px; flex:none; }
.brand .mark svg{ width:100%; height:100%; display:block; }
.brand b{ font-weight:700; }
.brand span.light{ font-weight:400; color: var(--muted); }

.nav-links{ display:flex; align-items:center; gap:4px; }
.nav-links a, .nav-links .navitem{
  position:relative; padding:9px 14px; border-radius:9px;
  font-size:.95rem; font-weight:450; color: var(--ink);
  display:inline-flex; align-items:center; gap:5px;
  transition: color .15s ease, background .15s ease;
}
.nav-links a:hover, .nav-links .navitem:hover{ background: var(--bg-soft); }
.nav-links a.active{ color: var(--brand); }
.nav-cta{ display:flex; align-items:center; gap:10px; }

/* dropdown */
.has-drop{ position:relative; }
.drop-toggle .caret{ transition: transform .2s ease; }
.has-drop:hover .drop-toggle .caret{ transform: rotate(180deg); }
.drop{
  position:absolute; top:calc(100% + 8px); left:50%; transform: translateX(-50%) translateY(8px);
  width:360px; background: var(--bg); border:1px solid var(--line);
  border-radius: 16px; box-shadow: var(--shadow-lg); padding:10px;
  opacity:0; visibility:hidden; z-index:1000; transition: opacity .18s ease, transform .18s ease;
}
.drop::before{
  content: "";
  position: absolute;
  top: -24px;
  left: 0;
  right: 0;
  height: 24px;
  background: transparent;
}
.has-drop:hover .drop,
.has-drop.active .drop{ opacity:1; visibility:visible; transform: translateX(-50%) translateY(0); }
.drop-item{ display:flex; gap:13px; align-items:flex-start; padding:13px; border-radius:11px; transition: background .15s ease; }
.drop-item:hover{ background: var(--bg-soft); }
.drop-item .itile{ width:42px; height:42px; font-size:1.1rem; border-radius:11px; }
.drop-item .di-title{ font-family:var(--font-display); font-weight:600; font-size:.98rem; display:flex; align-items:center; gap:7px; }
.drop-item .di-desc{ font-size:.83rem; color: var(--muted); margin-top:2px; line-height:1.4; }
.drop-foot{ padding:11px 13px 7px; border-top:1px solid var(--line); margin-top:6px; }

/* mobile */
.nav-toggle{ display:none; width:42px; height:42px; border-radius:11px; border:1px solid var(--line); background:var(--bg); place-items:center; }
.nav-toggle svg{ width:20px; height:20px; }
.mobile-menu{ display:none; }

@media (max-width: 1024px){
  .nav-links, .nav-cta .btn{ display:none; }
  .nav-toggle{ display:grid; }
  .mobile-menu{
    display:block; position:fixed; inset: var(--nav-h) 0 0 0; z-index:99;
    background: var(--bg); padding:18px 28px 40px; overflow:auto;
    transform: translateY(-8px); opacity:0; pointer-events:none; transition: opacity .2s ease, transform .2s ease;
    border-top:1px solid var(--line);
  }
  .mobile-menu.open{ opacity:1; transform:none; pointer-events:auto; }
  .mobile-menu a{ display:block; padding:15px 4px; font-size:1.15rem; font-family:var(--font-display); border-bottom:1px solid var(--line); }
  .mobile-menu .mm-prod{ display:flex; gap:12px; align-items:center; padding:15px 4px; border-bottom:1px solid var(--line); }
}

/* ============================================================
   Footer
   ============================================================ */
.footer{ background: var(--ink-bg); color:#cdd9ea; padding:72px 0 32px; }
.footer a{ color:#9fb0c8; transition:color .15s ease; }
.footer a:hover{ color:#fff; }
.footer .brand{ color:#fff; }
.foot-grid{ display:grid; grid-template-columns: 1.6fr 1fr 1fr 1.4fr; gap:40px; }
.foot-col h5{ font-family:var(--font-mono); font-size:.72rem; letter-spacing:.16em; text-transform:uppercase; color:#6b7d96; margin:0 0 16px; font-weight:500; }
.foot-col ul{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:11px; font-size:.92rem; }
.foot-bottom{ margin-top:54px; padding-top:24px; border-top:1px solid #18283f; display:flex; justify-content:space-between; align-items:center; gap:20px; flex-wrap:wrap; font-size:.85rem; color:#6b7d96; }
.foot-newsletter{ display:flex; gap:8px; margin-top:14px; }
.foot-newsletter input{ flex:1; background:#0f2138; border:1px solid #1f3454; color:#fff; border-radius:10px; padding:11px 13px; font-family:inherit; font-size:.9rem; }
.foot-newsletter input::placeholder{ color:#5d6f88; }
.foot-newsletter button{ background:var(--brand); color:#fff; border:none; border-radius:10px; padding:0 16px; font-weight:500; }

@media (max-width: 820px){
  .foot-grid{ grid-template-columns: 1fr 1fr; gap:32px; }
}

/* ============================================================
   Utilities & reveal
   ============================================================ */
.reveal{ opacity:0; transform: translateY(18px); transition: opacity .7s cubic-bezier(.2,.7,.2,1), transform .7s cubic-bezier(.2,.7,.2,1); }
.reveal.in{ opacity:1; transform:none; }
.reveal.d1{ transition-delay:.07s; } .reveal.d2{ transition-delay:.14s; }
.reveal.d3{ transition-delay:.21s; } .reveal.d4{ transition-delay:.28s; }

.mono{ font-family: var(--font-mono); }
.divider{ height:1px; background: var(--line); border:0; margin:0; }
.pill-row{ display:flex; flex-wrap:wrap; gap:10px; align-items:center; }

.logo-strip{ display:flex; align-items:center; gap:34px; flex-wrap:wrap; opacity:.8; }
.logo-strip .ls-item{ font-family:var(--font-mono); font-size:.82rem; color:var(--muted); display:flex; align-items:center; gap:8px; }

@media (max-width: 760px){
  .g-2,.g-3,.g-4{ grid-template-columns: 1fr; }
  .section{ padding: 72px 0; }
  .container{ padding:0 20px; }
}
@media (min-width:761px) and (max-width: 1020px){
  .g-3,.g-4{ grid-template-columns: repeat(2,1fr); }
}