/* ═══════════════════════════════════════════════════
   AntMídia — Design System
   Identidade visual unificada · violet × deep ink
   ═══════════════════════════════════════════════════ */

:root{
  /* ── Ink scale (deep neutrals) ── */
  --ink-950: #07070D;
  --ink-900: #0E0E18;
  --ink-800: #14141E;
  --ink-700: #1C1C28;
  --ink-600: #262633;

  /* ── Violet brand ── */
  --violet-700: #6D28D9;
  --violet-500: #8B5CF6;
  --violet-400: #A78BFA;
  --violet-300: #C4B5FD;
  --violet-200: #DDD6FE;
  --violet-rgb: 139,92,246;

  /* ── Text ── */
  --white:     #F5F5F7;
  --mute-100:  #D4D4DC;
  --mute-200:  #B5B5C0;
  --mute-300:  #71717A;
  --mute-500:  #4F4F5A;

  /* ── Lines ── */
  --line:        rgba(255,255,255,.07);
  --line-strong: rgba(255,255,255,.14);

  /* ── Type ── */
  --font-display: 'Syne', sans-serif;
  --font-body:    'Inter', system-ui, -apple-system, sans-serif;
  --font-mono:    'JetBrains Mono', ui-monospace, Menlo, monospace;

  /* ── Type scale ── */
  --t-xs:   clamp(.72rem, 1.2vw, .78rem);
  --t-sm:   clamp(.84rem, 1.5vw, .92rem);
  --t-base: clamp(.92rem, 1.7vw, 1.04rem);
  --t-lg:   clamp(1.04rem, 2.1vw, 1.24rem);
  --t-xl:   clamp(1.24rem, 2.7vw, 1.6rem);
  --t-2xl:  clamp(1.6rem, 3.8vw, 2.2rem);
  --t-3xl:  clamp(2rem, 5vw, 3rem);
  --t-4xl:  clamp(2.25rem, 5.8vw, 3.9rem);

  /* ── Spacing ── */
  --sp-2:.5rem; --sp-4:1rem; --sp-6:1.5rem; --sp-8:2rem;
  --sp-12:3rem; --sp-16:4rem; --sp-24:6rem; --sp-32:8rem;
}

/* ═══════════════ RESET ═══════════════ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;color-scheme:dark}
body{
  background:var(--ink-950);
  color:var(--white);
  font-family:var(--font-body);
  font-size:var(--t-base);
  line-height:1.6;
  font-weight:400;
  overflow-x:hidden;
  text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
button{font:inherit;cursor:pointer;color:inherit;background:none;border:none}
section{position:relative;background:transparent}
code{font-family:var(--font-mono);font-size:.92em;background:rgba(139,92,246,.12);color:var(--violet-300);padding:.1em .35em;border-radius:5px}

/* ═══════════════ Grain ═══════════════ */
.grain{
  position:fixed;inset:0;pointer-events:none;z-index:900;opacity:.04;mix-blend-mode:overlay;
  background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='240' height='240' filter='url(%23n)' opacity='.06'/%3E%3C/svg%3E");
}

/* ═══════════════ NAV ═══════════════ */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:5000;
  display:flex;align-items:center;justify-content:space-between;
  padding:1.5rem clamp(1.25rem,4vw,3rem);
  transition:all .4s cubic-bezier(.16,1,.3,1);
}
.nav.scrolled{background:rgba(7,7,13,.78);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);padding-top:.875rem;padding-bottom:.875rem;border-bottom:1px solid var(--line)}
.nav-logo{display:flex;align-items:center;gap:.625rem;font-family:var(--font-display);font-weight:800;font-size:1.375rem;letter-spacing:-.04em;color:var(--white)}
.nav-logo svg{width:30px;height:30px}
.nav-logo .dot{color:var(--violet-400)}
.nav-links{display:flex;gap:2.25rem;align-items:center}
.nav-links a{font-size:.9375rem;color:var(--mute-200);font-weight:400;letter-spacing:-.01em;transition:color .2s}
.nav-links a:hover{color:var(--white)}
.nav-secondary{color:var(--mute-300)!important;font-size:.85rem!important}
.nav-cta{padding:.625rem 1.25rem;background:rgba(139,92,246,.12);border:1px solid rgba(139,92,246,.28);color:var(--violet-300)!important;border-radius:50rem;font-size:.875rem;font-weight:500;transition:all .25s}
.nav-cta:hover{background:rgba(139,92,246,.22);color:var(--white)!important;transform:translateY(-1px)}

/* Mobile menu */
.nav-burger{display:none;flex-direction:column;gap:5px;padding:.6rem;border-radius:8px;border:1px solid var(--line)}
.nav-burger span{display:block;width:18px;height:1.5px;background:var(--white);transition:transform .3s,opacity .3s}
.nav-burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-menu{position:fixed;inset:0;background:rgba(7,7,13,.97);backdrop-filter:blur(24px);z-index:4900;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:1.75rem;padding:5rem 2rem;transform:translateY(-100%);transition:transform .4s cubic-bezier(.16,1,.3,1);opacity:0}
.mobile-menu.open{transform:translateY(0);opacity:1}
.mobile-menu a:not(.btn){font-family:var(--font-display);font-size:1.875rem;font-weight:700;color:var(--white);letter-spacing:-.025em}
.mobile-menu .btn{width:100%;max-width:280px}
@media (max-width:880px){
  .nav-links{display:none}
  .nav-burger{display:flex}
}

/* ═══════════════ BUTTONS ═══════════════ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  padding:.875rem 1.875rem;font-family:var(--font-body);
  font-size:.92rem;font-weight:500;letter-spacing:-.01em;
  border-radius:50rem;text-decoration:none;white-space:nowrap;
  position:relative;overflow:hidden;border:none;cursor:pointer;
  transition:transform .35s cubic-bezier(.34,1.56,.64,1),box-shadow .35s,background .35s;
}
.btn svg{width:18px;height:18px}
.btn--lg{padding:1.0625rem 2.25rem;font-size:1.0625rem}
.btn--cta{padding:1.2rem 2.6rem;font-size:1.125rem;font-weight:600;letter-spacing:-.02em}
.btn .arrow{display:inline-flex;transition:transform .3s cubic-bezier(.34,1.56,.64,1)}
.btn:hover .arrow{transform:translateX(5px)}

.btn--primary{
  background:linear-gradient(135deg,var(--violet-500) 0%,#7C3AED 100%);
  color:#fff;font-weight:600;
  box-shadow:0 1px 0 rgba(255,255,255,.16) inset,0 8px 30px rgba(139,92,246,.34);
}
.btn--primary:hover{transform:translateY(-2px) scale(1.02);box-shadow:0 1px 0 rgba(255,255,255,.25) inset,0 14px 44px rgba(139,92,246,.55),0 0 0 1px rgba(139,92,246,.4)}
.btn--primary:active{transform:translateY(0) scale(.98)}

.btn--ghost{background:rgba(255,255,255,.04);color:var(--white);backdrop-filter:blur(8px)}
.btn--ghost::before{content:'';position:absolute;inset:0;border-radius:inherit;padding:1px;background:linear-gradient(135deg,rgba(139,92,246,.4),rgba(255,255,255,.12) 60%,rgba(139,92,246,.18));-webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}
.btn--ghost:hover{background:rgba(255,255,255,.08);transform:translateY(-2px)}

/* ═══════════════ SECTIONS ═══════════════ */
.section{padding:var(--sp-32) clamp(1.25rem,4vw,3rem);position:relative}
.section--sm{padding:var(--sp-16) clamp(1.25rem,4vw,3rem)}
.section--md{padding:var(--sp-24) clamp(1.25rem,4vw,3rem)}
.container{width:100%;max-width:1200px;margin:0 auto;position:relative;z-index:2}
.container--narrow{max-width:780px}
.container--wide{max-width:1320px}

.section-tag{display:inline-flex;align-items:center;gap:.4rem;padding:.4rem 1rem;border-radius:50rem;background:rgba(139,92,246,.08);border:1px solid rgba(139,92,246,.22);color:var(--violet-300);font-size:.74rem;font-weight:500;letter-spacing:.1em;text-transform:uppercase}
.section-h{margin-top:1.25rem;font-family:var(--font-display);font-size:var(--t-4xl);font-weight:800;line-height:1.02;letter-spacing:-.04em;max-width:18ch}
.section-h--center{margin-left:auto;margin-right:auto;text-align:center;max-width:18ch}
.section-sub{margin-top:1.25rem;font-size:1.0625rem;color:var(--mute-300);max-width:560px;font-weight:300;line-height:1.55}
.section-sub--center{margin-left:auto;margin-right:auto;text-align:center}
.section-head{margin-bottom:4rem}
.section-head--center{text-align:center}

.grad{background:linear-gradient(135deg,var(--violet-300) 0%,var(--violet-500) 55%,#C4B5FD 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.stroke{color:transparent;-webkit-text-stroke:1.5px var(--violet-500)}

.divider{height:1px;margin:0 auto;max-width:1200px;background:linear-gradient(to right,transparent,rgba(139,92,246,.22) 30%,rgba(139,92,246,.22) 70%,transparent)}

/* ═══════════════ FOOTER ═══════════════ */
.foot{background:#04040A;padding:5rem 1.5rem 2rem;border-top:1px solid var(--line)}
.foot-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:3rem;margin-bottom:3.5rem}
@media (max-width:760px){.foot-grid{grid-template-columns:1fr 1fr;gap:2rem}.foot-grid > div:first-child{grid-column:span 2}}
.foot-brand{display:flex;flex-direction:column;gap:1rem;max-width:340px}
.foot-brand p{color:var(--mute-300);font-size:.9375rem;line-height:1.6}
.foot-col h4{font-family:var(--font-display);font-size:.8125rem;font-weight:600;color:var(--white);text-transform:uppercase;letter-spacing:.1em;margin-bottom:1.25rem}
.foot-col a{display:block;color:var(--mute-300);font-size:.9375rem;padding:.4rem 0;transition:color .2s}
.foot-col a:hover{color:var(--violet-300)}
.foot-bottom{max-width:1200px;margin:0 auto;padding-top:2rem;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;font-size:.78rem;color:var(--mute-500);flex-wrap:wrap;gap:1rem}

/* ═══════════════ REVEAL ═══════════════ */
[data-reveal]{opacity:0;transform:translateY(30px);transition:opacity .9s cubic-bezier(.16,1,.3,1),transform .9s cubic-bezier(.16,1,.3,1)}
[data-reveal].in{opacity:1;transform:translateY(0)}
[data-stagger] [data-item]{opacity:0;transform:translateY(28px);transition:opacity .8s cubic-bezier(.16,1,.3,1),transform .8s cubic-bezier(.16,1,.3,1)}
[data-stagger].in [data-item]{opacity:1;transform:translateY(0)}
[data-stagger].in [data-item]:nth-child(1){transition-delay:.05s}
[data-stagger].in [data-item]:nth-child(2){transition-delay:.13s}
[data-stagger].in [data-item]:nth-child(3){transition-delay:.21s}
[data-stagger].in [data-item]:nth-child(4){transition-delay:.29s}
[data-stagger].in [data-item]:nth-child(5){transition-delay:.37s}
[data-stagger].in [data-item]:nth-child(6){transition-delay:.45s}

@media (prefers-reduced-motion:reduce){
  [data-reveal],[data-stagger] [data-item]{opacity:1;transform:none;transition:none}
}

/* Scroll progress */
.scroll-progress{position:fixed;top:0;left:0;height:2px;width:0;background:linear-gradient(90deg,var(--violet-500),var(--violet-400));z-index:9001;transition:width .1s linear;pointer-events:none}