/* =========================================================
   PixForge — Design tokens
   Paleta: obsidiana + bronze/cobre envelhecido + dourado fosco.
   Fundo em camadas (glow orbs + vinheta + textura), sem flat orange.
   ========================================================= */
:root{
  --bg: #0A0908;
  --bg-1: #0F0D0B;
  --bg-2: #16130F;
  --bg-3: #1E1A15;
  --surface: rgba(255,247,235,0.045);
  --surface-strong: rgba(255,247,235,0.075);
  --border: rgba(255,247,235,0.09);
  --border-strong: rgba(232,181,99,0.22);

  --copper: #C9793D;
  --copper-deep: #8A5A3B;
  --gold: #E8B563;
  --gold-pale: #F3DDA8;
  --accent-grad: linear-gradient(120deg, var(--copper) 0%, var(--gold) 58%, var(--gold-pale) 100%);
  --accent-grad-soft: linear-gradient(135deg, rgba(201,121,61,0.16), rgba(232,181,99,0.05));
  --steel: #5C86A0;

  --text: #F4EEE2;
  --text-dim: #A79C8C;
  --text-faint: #6E655A;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 30px;

  --ease-spring: cubic-bezier(.22,1.2,.36,1);
  --ease-out: cubic-bezier(.16,1,.3,1);

  --font-display: 'Sora', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --container: 1180px;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }

body{
  margin:0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  position: relative;
  overflow-x: hidden;
}

@media (prefers-reduced-motion: reduce){
  *{ animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

a{ color: inherit; text-decoration: none; }
h1,h2,h3{ font-family: var(--font-display); margin: 0; }
p{ margin: 0; }
::selection{ background: var(--copper); color: #14100A; }

.grad-text{
  background: var(--accent-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* =========================================================
   Fundo em camadas — glow orbs fixos + vinheta + textura
   ========================================================= */
.bg-field{
  position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden;
}
.bg-field__orb{
  position: absolute; border-radius: 50%; filter: blur(90px);
  opacity: 0.5;
}
.bg-field__orb--1{
  width: 640px; height: 640px; top: -220px; left: 8%;
  background: radial-gradient(circle, rgba(201,121,61,0.5), transparent 70%);
}
.bg-field__orb--2{
  width: 520px; height: 520px; top: 8%; right: -140px;
  background: radial-gradient(circle, rgba(232,181,99,0.32), transparent 70%);
}
.bg-field__orb--3{
  width: 560px; height: 560px; bottom: -260px; left: 30%;
  background: radial-gradient(circle, rgba(92,134,160,0.22), transparent 70%);
}
.bg-field__vignette{
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, transparent 40%, rgba(6,5,4,0.55) 100%),
              linear-gradient(180deg, transparent 0%, var(--bg) 97%);
}
.bg-field__hairlines{
  position: absolute; inset: 0; opacity: 0.05;
  background-image: repeating-linear-gradient(115deg, var(--gold) 0px, var(--gold) 1px, transparent 1px, transparent 64px);
}

.grain{
  position: fixed; inset: 0; pointer-events: none; z-index: 2;
  opacity: 0.035; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

:focus-visible{
  outline: 2px solid var(--gold);
  outline-offset: 3px;
  border-radius: 4px;
}

main, .footer, .nav{ position: relative; z-index: 1; }

/* =========================================================
   Nav
   ========================================================= */
.nav{
  position: sticky; top: 0; z-index: 50;
  background: rgba(10,9,8,0.72);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid var(--border);
}
.nav__inner{
  max-width: var(--container); margin: 0 auto;
  padding: 16px 28px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px;
}
.nav__brand{
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-display); font-weight: 700; font-size: 1.05rem;
  letter-spacing: 0.01em;
}
.nav__brand--small{ font-size: 0.95rem; }
.nav__mark{ display:flex; filter: drop-shadow(0 0 10px rgba(201,121,61,0.35)); }
.nav__links{
  display: flex; gap: 22px; flex-wrap: wrap;
  font-size: 0.86rem; color: var(--text-dim);
}
.nav__links a{
  position: relative; padding: 4px 0; transition: color .2s var(--ease-out); white-space: nowrap;
}
.nav__links a::after{
  content: ""; position: absolute; left: 0; right: 100%; bottom: -2px; height: 1.5px;
  background: var(--accent-grad); transition: right .3s var(--ease-out);
}
.nav__links a:hover{ color: var(--text); }
.nav__links a:hover::after,
.nav__links a.is-active::after{ right: 0; }
.nav__links a.is-active{ color: var(--gold-pale); }

.nav__toggle{
  display: none; width: 38px; height: 38px; border-radius: 10px;
  background: var(--surface); border: 1px solid var(--border-strong);
  align-items: center; justify-content: center; cursor: pointer;
  flex-direction: column; gap: 4px;
}
.nav__toggle span{ display: block; width: 16px; height: 1.5px; background: var(--text); transition: transform .25s var(--ease-out), opacity .2s; }
.nav__toggle.is-open span:nth-child(1){ transform: translateY(5.5px) rotate(45deg); }
.nav__toggle.is-open span:nth-child(2){ opacity: 0; }
.nav__toggle.is-open span:nth-child(3){ transform: translateY(-5.5px) rotate(-45deg); }

@media (max-width: 860px){
  .nav__toggle{ display: flex; }
  .nav__links{
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; gap: 2px;
    background: rgba(10,9,8,0.97); backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    padding: 8px 28px 18px;
    max-height: 0; overflow: hidden;
    transition: max-height .35s var(--ease-out);
  }
  .nav__links.is-open{ max-height: 480px; }
  .nav__links a{ padding: 11px 0; border-bottom: 1px solid var(--border); font-size: 0.94rem; }
  .nav__links a:last-child{ border-bottom: none; }
}

/* =========================================================
   Buttons
   ========================================================= */
.btn{
  position: relative; overflow: hidden;
  font-family: var(--font-body);
  font-weight: 600; font-size: 0.92rem;
  padding: 12px 22px; border-radius: 999px;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .25s var(--ease-spring), box-shadow .25s var(--ease-out), border-color .2s, background .2s, opacity .2s;
  display: inline-flex; align-items: center; gap: 8px;
}
.btn:active{ transform: scale(0.97); }
.btn--primary{
  background: var(--accent-grad); color: #1A1207;
  box-shadow: 0 10px 26px -10px rgba(201,121,61,0.65), inset 0 1px 0 rgba(255,255,255,0.35);
}
.btn--primary::before{
  content: ""; position: absolute; inset: 0; translate: -130% 0;
  background: linear-gradient(115deg, transparent 30%, rgba(255,255,255,0.55) 50%, transparent 70%);
}
.btn--primary:hover{ transform: translateY(-2px); box-shadow: 0 14px 32px -8px rgba(201,121,61,0.8), inset 0 1px 0 rgba(255,255,255,0.4); }
.btn--primary:hover::before{ translate: 130% 0; transition: translate .7s var(--ease-out); }
.btn--outline{
  background: var(--surface); color: var(--text);
  border-color: var(--border-strong);
}
.btn--outline:hover{ background: var(--surface-strong); border-color: var(--gold); }
.btn--ghost{
  background: transparent; color: var(--text); border-color: var(--border-strong);
}
.btn--ghost:hover{ background: var(--surface); border-color: var(--gold); }
.btn--text{
  background: transparent; color: var(--text-dim); padding: 12px 8px;
}
.btn--text:hover{ color: var(--text); }
.btn:disabled{ opacity: 0.4; cursor: not-allowed; transform: none; }

/* =========================================================
   Hero
   ========================================================= */
.hero{
  position: relative; overflow: hidden;
  padding: 128px 28px 96px;
  display: flex; justify-content: center;
}
.hero__sparks{
  position: absolute; inset: 0; width: 100%; height: 100%;
  opacity: 0.85;
}
.hero__inner{
  position: relative; z-index: 1;
  max-width: 760px; text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 22px;
  animation: heroRise 0.9s var(--ease-out) both;
}
@keyframes heroRise{ from{ opacity:0; transform: translateY(18px); } to{ opacity:1; transform: translateY(0); } }

.hero__eyebrow{
  font-family: var(--font-mono); font-size: 0.76rem; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--gold);
  border: 1px solid var(--border-strong); background: var(--accent-grad-soft);
  padding: 7px 16px; border-radius: 999px;
}
.hero__title{
  font-size: clamp(2.5rem, 5.6vw, 4.2rem);
  font-weight: 800; line-height: 1.06; letter-spacing: -0.02em;
  text-wrap: balance;
}
.hero__sub{
  font-size: 1.1rem; color: var(--text-dim); max-width: 560px;
}
.hero__cta{ display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; margin-top: 6px; }
.hero__note{ font-size: 0.8rem; color: var(--text-faint); font-family: var(--font-mono); }

/* =========================================================
   Tools grid
   ========================================================= */
.tools-grid-section{
  max-width: var(--container); margin: 0 auto; padding: 70px 28px 40px;
  text-align: center;
}
.section__eyebrow{
  font-family: var(--font-mono); font-size: 0.76rem; text-transform: uppercase;
  letter-spacing: 0.1em; color: var(--steel); margin-bottom: 10px;
}
.section__title{ font-size: 2.1rem; font-weight: 700; margin-bottom: 42px; letter-spacing: -0.01em; }

.tools-grid{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 18px;
}
.tool-card{
  background: linear-gradient(180deg, var(--surface), rgba(255,247,235,0.02));
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  text-align: left;
  transition: transform .3s var(--ease-spring), border-color .25s, box-shadow .3s var(--ease-out);
  position: relative; overflow: hidden;
  box-shadow: 0 1px 0 rgba(255,255,255,0.03) inset;
}
.tool-card::before{
  content: ""; position: absolute; inset: 0; opacity: 0;
  background: var(--accent-grad-soft);
  transition: opacity .3s var(--ease-out);
}
.tool-card:hover{
  transform: translateY(-6px);
  border-color: var(--border-strong);
  box-shadow: 0 18px 38px -18px rgba(0,0,0,0.6), 0 0 0 1px rgba(232,181,99,0.08);
}
.tool-card:hover::before{ opacity: 1; }
.tool-card__icon{
  display: inline-flex; align-items: center; justify-content: center;
  width: 42px; height: 42px; border-radius: 11px;
  background: var(--accent-grad); color: #1A1207; font-weight: 700; font-size: 1.15rem;
  margin-bottom: 16px;
  box-shadow: 0 6px 16px -6px rgba(201,121,61,0.6);
}
.tool-card h3{ font-size: 1.06rem; margin-bottom: 6px; position: relative; }
.tool-card p{ font-size: 0.87rem; color: var(--text-dim); line-height: 1.5; position: relative; }

/* =========================================================
   Tool panels
   ========================================================= */
.tool-panel{
  max-width: var(--container); margin: 0 auto;
  padding: 76px 28px;
  border-top: 1px solid var(--border);
  scroll-margin-top: 90px;
}
.tool-panel:nth-of-type(even){
  background: linear-gradient(180deg, transparent, rgba(255,247,235,0.015) 20%, rgba(255,247,235,0.015) 80%, transparent);
}
.tool-panel__head{
  display: flex; gap: 20px; align-items: flex-start;
  margin-bottom: 36px;
}
.tool-panel__num{
  font-family: var(--font-mono); font-size: 0.85rem; color: var(--gold);
  border: 1px solid var(--border-strong); border-radius: 8px; background: var(--accent-grad-soft);
  padding: 4px 10px; flex-shrink: 0; margin-top: 3px;
}
.tool-panel__head h2{ font-size: 1.7rem; margin-bottom: 7px; letter-spacing: -0.01em; }
.tool-panel__head p{ color: var(--text-dim); font-size: 0.96rem; max-width: 560px; }

.tool-panel__body{
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 28px;
  align-items: start;
}

/* =========================================================
   Dropzone / canvas
   ========================================================= */
.dropzone{
  position: relative;
  background: linear-gradient(180deg, var(--bg-2), var(--bg-1));
  border: 1.5px dashed var(--border-strong);
  border-radius: var(--radius-lg);
  min-height: 320px;
  display: flex; align-items: center; justify-content: center;
  transition: border-color .25s, background .25s;
  overflow: hidden;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.03);
}
.dropzone.is-dragover{ border-color: var(--gold); background: rgba(201,121,61,0.07); }
.dropzone__empty{
  text-align: center; padding: 30px; cursor: pointer;
  display: flex; flex-direction: column; align-items: center; gap: 11px;
  color: var(--text-dim);
}
.dropzone__icon{
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--surface-strong); border: 1px solid var(--border-strong);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.35rem; color: var(--gold);
}
.dropzone__link{ color: var(--gold); text-decoration: underline; }
.dropzone__hint{ font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-faint); }

.dropzone__canvas{
  max-width: 100%; max-height: 480px; display: block;
  border-radius: var(--radius-sm);
}
.dropzone__canvas--checker{
  background-image:
    linear-gradient(45deg, #2a251d 25%, transparent 25%),
    linear-gradient(-45deg, #2a251d 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #2a251d 75%),
    linear-gradient(-45deg, transparent 75%, #2a251d 75%);
  background-size: 16px 16px;
  background-position: 0 0, 0 8px, 8px -8px, -8px 0px;
  background-color: #1c1812;
}

.crop-stage{ position: relative; max-width: 100%; }
.crop-box{
  position: absolute;
  border: 2px solid var(--gold);
  background: rgba(232,181,99,0.12);
  box-shadow: 0 0 0 2000px rgba(0,0,0,0.55);
  cursor: move;
}
.crop-box__handle{
  position: absolute; width: 15px; height: 15px;
  background: var(--accent-grad); border: 2px solid #14100A; border-radius: 50%;
}
.crop-box__handle[data-handle="nw"]{ top: -7px; left: -7px; cursor: nwse-resize; }
.crop-box__handle[data-handle="ne"]{ top: -7px; right: -7px; cursor: nesw-resize; }
.crop-box__handle[data-handle="sw"]{ bottom: -7px; left: -7px; cursor: nesw-resize; }
.crop-box__handle[data-handle="se"]{ bottom: -7px; right: -7px; cursor: nwse-resize; }

/* =========================================================
   Controls panel
   ========================================================= */
.controls{
  background: linear-gradient(180deg, var(--surface), rgba(255,247,235,0.02));
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 26px;
  display: flex; flex-direction: column; gap: 18px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.03);
}
.field{ display: flex; flex-direction: column; gap: 8px; font-size: 0.85rem; color: var(--text-dim); }
.field b{ color: var(--text); font-family: var(--font-mono); font-weight: 500; }
.field-row{ display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

.tool-hint{
  font-size: 0.82rem; line-height: 1.55; color: var(--gold);
  background: var(--accent-grad-soft); border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm); padding: 13px 15px;
}
.tool-hint a{ text-decoration: underline; color: var(--gold-pale); }
.tool-hint b{ color: var(--text); }

input[type="number"], input[type="text"], select{
  background: var(--bg-2); border: 1px solid var(--border-strong);
  color: var(--text); border-radius: var(--radius-sm);
  padding: 10px 12px; font-family: var(--font-mono); font-size: 0.9rem;
  transition: border-color .2s, box-shadow .2s;
  width: 100%;
}
input[type="number"]:focus, input[type="text"]:focus, select:focus{
  border-color: var(--gold); outline: none; box-shadow: 0 0 0 3px rgba(232,181,99,0.14);
}

input[type="range"]{
  -webkit-appearance: none; width: 100%; height: 4px;
  background: var(--border-strong); border-radius: 999px; outline: none;
}
input[type="range"]::-webkit-slider-thumb{
  -webkit-appearance: none; width: 17px; height: 17px; border-radius: 50%;
  background: var(--accent-grad); cursor: pointer; border: 2px solid #0A0908;
  box-shadow: 0 0 0 1px var(--gold), 0 4px 10px -2px rgba(201,121,61,0.6);
}
input[type="range"]::-moz-range-thumb{
  width: 17px; height: 17px; border-radius: 50%;
  background: var(--accent-grad); cursor: pointer; border: 2px solid #0A0908;
}

input[type="color"]{
  -webkit-appearance: none; appearance: none;
  width: 44px; height: 40px; border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm); background: var(--bg-2); cursor: pointer; padding: 3px;
}
input[type="color"]::-webkit-color-swatch{ border-radius: 5px; border: none; }

.checkbox{
  display: flex; align-items: center; gap: 9px;
  font-size: 0.86rem; color: var(--text-dim); cursor: pointer; user-select: none;
}
.checkbox input{ accent-color: var(--copper); width: 16px; height: 16px; }

.control-row{ display: flex; gap: 10px; flex-wrap: wrap; }
.chip{
  background: var(--bg-2); border: 1px solid var(--border-strong); color: var(--text-dim);
  font-family: var(--font-mono); font-size: 0.78rem;
  padding: 8px 13px; border-radius: 999px; cursor: pointer;
  transition: all .2s var(--ease-out);
}
.chip:hover, .chip.is-active{ border-color: var(--gold); color: var(--text); background: var(--accent-grad-soft); }

.readout{
  font-family: var(--font-mono); font-size: 0.82rem; color: var(--text-dim);
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 13px 15px;
}
.readout--split{ display: flex; justify-content: space-between; gap: 10px; }
.readout--split > div{ display: flex; flex-direction: column; gap: 4px; text-align: center; flex: 1; }
.readout--split span{ font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-faint); }
.readout--split b{ font-size: 0.95rem; color: var(--text); }
.readout--split b.accent{ color: var(--gold); }

.grid9{
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 8px; width: 112px; margin: 0 auto;
}
.grid9__dot{
  width: 100%; aspect-ratio: 1; border-radius: 6px;
  background: var(--bg-2); border: 1px solid var(--border-strong); cursor: pointer;
  transition: all .2s;
}
.grid9__dot:hover{ border-color: var(--gold); }
.grid9__dot--active{ background: var(--accent-grad); border-color: transparent; }

.actions{ display: flex; gap: 10px; flex-wrap: wrap; padding-top: 4px; }

/* =========================================================
   Footer
   ========================================================= */
.footer{
  border-top: 1px solid var(--border);
  padding: 44px 28px;
}
.footer__inner{
  max-width: var(--container); margin: 0 auto;
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
  color: var(--text-faint); font-size: 0.82rem;
}

/* =========================================================
   Responsivo — desktop grande / laptop / tablet / mobile
   ========================================================= */
@media (min-width: 1440px){
  :root{ --container: 1280px; }
  .hero{ padding: 150px 28px 110px; }
}

@media (max-width: 1024px){
  .tool-panel__body{ gap: 22px; }
  .dropzone{ min-height: 280px; }
}

@media (max-width: 860px){
  .tool-panel__body{ grid-template-columns: 1fr; }
  .tool-panel{ padding: 56px 24px; }
  .hero{ padding: 100px 22px 72px; }
  .tools-grid-section{ padding: 54px 22px 30px; }
}

@media (max-width: 640px){
  .nav__inner{ padding: 14px 20px; }
  .hero__title{ letter-spacing: -0.01em; }
  .hero__cta{ flex-direction: column; width: 100%; }
  .hero__cta .btn{ width: 100%; justify-content: center; }
  .tools-grid{ grid-template-columns: 1fr; }
  .field-row{ grid-template-columns: 1fr; }
  .dropzone{ min-height: 240px; border-radius: var(--radius-md); }
  .controls{ padding: 20px; border-radius: var(--radius-md); }
  .tool-panel__head{ gap: 14px; }
  .tool-panel__head h2{ font-size: 1.4rem; }
  .readout--split{ flex-wrap: wrap; }
  .crop-box__handle{ width: 22px; height: 22px; }
  .crop-box__handle[data-handle="nw"]{ top: -11px; left: -11px; }
  .crop-box__handle[data-handle="ne"]{ top: -11px; right: -11px; }
  .crop-box__handle[data-handle="sw"]{ bottom: -11px; left: -11px; }
  .crop-box__handle[data-handle="se"]{ bottom: -11px; right: -11px; }
  .footer__inner{ flex-direction: column; align-items: flex-start; text-align: left; }
}

@media (max-width: 380px){
  .hero__title{ font-size: 2.1rem; }
  .grid9{ width: 100px; }
}