/* ==================================================================
   KYNO — Sistema de design
   Deep Blue · Human Premium · Modern Technology
   ================================================================== */

/* ------------------------------------------------------------------
   1. Fundamentos
   ------------------------------------------------------------------ */
:root {
  /* Deep Blue — a cor proprietária da KYNO.
     Índigo-tinta: mais denso e frio que o azul corporativo comum. */
  --ky-abyss:      #050D1C;   /* quase preto azulado */
  --ky-deep:       #0A1B33;   /* fundo escuro principal */
  --ky-deep-soft:  #0E2340;
  --ky-navy:       #14294A;
  --ky-slate:      #2C4468;

  /* Azul de sinal — ações, foco, energia */
  --ky-blue:       #1B4FD8;
  --ky-blue-lit:   #2E68F5;
  --ky-blue-soft:  #E8EEFC;

  /* Neutros quentes — o lado humano da marca */
  --ky-paper:      #FBFAF8;   /* off-white levemente quente */
  --ky-paper-2:    #F4F2EE;
  --ky-line:       #E4E1DB;

  /* Grafite */
  --ky-ink:        #14161A;
  --ky-ink-2:      #454A54;
  --ky-ink-3:      #6E747F;

  /* Acento cálido — usado com muita parcimônia (calor humano) */
  --ky-warm:       #C8926A;

  /* Tipografia */
  --ky-display: 'Fraunces', 'Georgia', serif;
  --ky-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont,
             'Segoe UI', Roboto, sans-serif;

  /* Escala fluida — mobile first, cresce com a viewport */
  --t-xs:   clamp(0.75rem, 0.72rem + 0.15vw, 0.8125rem);
  --t-sm:   clamp(0.875rem, 0.85rem + 0.2vw, 0.9375rem);
  --t-base: clamp(1rem, 0.96rem + 0.25vw, 1.0625rem);
  --t-lg:   clamp(1.125rem, 1.05rem + 0.4vw, 1.25rem);
  --t-xl:   clamp(1.375rem, 1.2rem + 0.8vw, 1.75rem);
  --t-2xl:  clamp(1.75rem, 1.45rem + 1.4vw, 2.5rem);
  --t-3xl:  clamp(2.25rem, 1.7rem + 2.6vw, 3.75rem);
  --t-4xl:  clamp(2.75rem, 1.9rem + 4vw, 5.25rem);

  /* Ritmo */
  --sp-1: 0.5rem;
  --sp-2: 0.875rem;
  --sp-3: 1.25rem;
  --sp-4: 2rem;
  --sp-5: 3rem;
  --sp-6: 4.5rem;
  --sp-7: 7rem;

  /* Seção — respiro generoso, mais no desktop */
  --section-y: clamp(4.5rem, 3rem + 7vw, 9rem);
  --gutter: clamp(1.25rem, 0.9rem + 1.8vw, 2.5rem);
  --maxw: 1240px;

  /* Curvas e formas */
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 22px;
  --r-xl: 32px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  /* Sombras — discretas, com tom azul em vez de cinza neutro */
  --sh-sm: 0 1px 2px rgba(10, 27, 51, 0.05),
           0 2px 6px rgba(10, 27, 51, 0.04);
  --sh-md: 0 4px 12px rgba(10, 27, 51, 0.06),
           0 12px 32px rgba(10, 27, 51, 0.07);
  --sh-lg: 0 8px 24px rgba(10, 27, 51, 0.08),
           0 32px 64px rgba(10, 27, 51, 0.10);
}

/* ------------------------------------------------------------------
   2. Reset
   ------------------------------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; }

* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

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

body {
  font-family: var(--ky-sans);
  font-size: var(--t-base);
  line-height: 1.65;
  color: var(--ky-ink);
  background: var(--ky-paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg, video { display: block; max-width: 100%; height: auto; }

a { color: inherit; text-decoration: none; }

button, input, textarea, select { font: inherit; color: inherit; }

/* Foco visível e consistente — acessibilidade */
:focus-visible {
  outline: 2px solid var(--ky-blue-lit);
  outline-offset: 3px;
  border-radius: 4px;
}
:focus:not(:focus-visible) { outline: none; }

::selection {
  background: var(--ky-blue);
  color: #fff;
}

/* ------------------------------------------------------------------
   3. Tipografia
   ------------------------------------------------------------------ */
h1, h2, h3, h4 {
  font-family: var(--ky-display);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.02em;
  font-variation-settings: 'SOFT' 0, 'WONK' 0, 'opsz' 40;
}

h1 { font-size: var(--t-4xl); letter-spacing: -0.035em; }
h2 { font-size: var(--t-3xl); letter-spacing: -0.03em; }
h3 { font-size: var(--t-xl); }

p { text-wrap: pretty; }
h1, h2, h3 { text-wrap: balance; }

/* Olho — texto de apoio abaixo dos títulos */
.lead {
  font-size: var(--t-lg);
  line-height: 1.6;
  color: var(--ky-ink-2);
  max-width: 54ch;
}

/* Rótulo de seção — pequeno, espaçado, com marcador */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-size: var(--t-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ky-blue);
  font-family: var(--ky-sans);
}
.eyebrow::before {
  content: '';
  width: 20px;
  height: 1px;
  background: currentColor;
  opacity: 0.5;
}
.on-dark .eyebrow { color: #7FA5FF; }

/* Ênfase editorial dentro de títulos */
.accent {
  font-style: italic;
  font-variation-settings: 'SOFT' 40, 'WONK' 1, 'opsz' 40;
  color: var(--ky-blue);
}
.on-dark .accent { color: #8FB0FF; }

/* ------------------------------------------------------------------
   4. Layout
   ------------------------------------------------------------------ */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.wrap--narrow { max-width: 880px; }

.section { padding-block: var(--section-y); }

.section--dark {
  background: var(--ky-deep);
  color: var(--ky-paper);
}
.section--dark p { color: rgba(251, 250, 248, 0.72); }
.section--dark .lead { color: rgba(251, 250, 248, 0.72); }

.section--tint { background: var(--ky-paper-2); }

/* Cabeçalho de seção */
.sec-head { max-width: 62ch; margin-bottom: var(--sp-5); }
.sec-head h2 { margin-block: var(--sp-2) var(--sp-3); }

.center { text-align: center; }
.center .sec-head { margin-inline: auto; }
.center .lead { margin-inline: auto; }

/* ------------------------------------------------------------------
   5. Botões
   ------------------------------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55em;
  padding: 0.95rem 1.6rem;
  min-height: 52px;              /* alvo de toque confortável */
  font-family: var(--ky-sans);
  font-size: var(--t-sm);
  font-weight: 600;
  letter-spacing: -0.01em;
  border: 1px solid transparent;
  border-radius: 100px;
  cursor: pointer;
  transition: transform 0.35s var(--ease),
              background-color 0.25s ease,
              box-shadow 0.35s var(--ease),
              border-color 0.25s ease,
              color 0.25s ease;
  white-space: nowrap;
}

.btn:active { transform: translateY(1px); }

.btn--primary {
  background: var(--ky-blue);
  color: #fff;
  box-shadow: 0 1px 2px rgba(27, 79, 216, 0.2),
              0 8px 24px -8px rgba(27, 79, 216, 0.5);
}
.btn--primary:hover {
  background: var(--ky-blue-lit);
  transform: translateY(-2px);
  box-shadow: 0 2px 4px rgba(27, 79, 216, 0.2),
              0 14px 32px -8px rgba(27, 79, 216, 0.55);
}

.btn--ghost {
  background: transparent;
  border-color: var(--ky-line);
  color: var(--ky-ink);
}
.btn--ghost:hover {
  border-color: var(--ky-slate);
  background: rgba(20, 41, 74, 0.03);
}

.on-dark .btn--ghost,
.section--dark .btn--ghost {
  border-color: rgba(251, 250, 248, 0.22);
  color: var(--ky-paper);
}
.on-dark .btn--ghost:hover,
.section--dark .btn--ghost:hover {
  border-color: rgba(251, 250, 248, 0.45);
  background: rgba(251, 250, 248, 0.06);
}

.btn--light {
  background: var(--ky-paper);
  color: var(--ky-deep);
}
.btn--light:hover { transform: translateY(-2px); box-shadow: var(--sh-md); }

/* Seta que desliza no hover */
.btn svg { transition: transform 0.35s var(--ease); }
.btn:hover svg { transform: translateX(3px); }

/* Link com sublinhado que cresce */
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.45em;
  font-weight: 600;
  font-size: var(--t-sm);
  color: var(--ky-blue);
  position: relative;
}
.link-arrow::after {
  content: '';
  position: absolute;
  left: 0; bottom: -2px;
  width: 100%; height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.4s var(--ease);
}
.link-arrow:hover::after { transform: scaleX(1); transform-origin: left; }
.link-arrow svg { transition: transform 0.35s var(--ease); }
.link-arrow:hover svg { transform: translateX(3px); }

/* ------------------------------------------------------------------
   6. Formulários
   ------------------------------------------------------------------
   Primitivas compartilhadas entre o painel e a página pública:
   um campo de formulário tem a mesma cara nos dois lados.
   ------------------------------------------------------------------ */
.form { display: grid; gap: var(--sp-3); }

.grid-2 { display: grid; gap: var(--sp-3); }
@media (min-width: 620px) {
  .grid-2 { grid-template-columns: 1fr 1fr; }
  .grid-2 .full { grid-column: 1 / -1; }
}

.field { display: grid; gap: 0.4rem; }

.field label {
  font-size: var(--t-sm);
  font-weight: 600;
  color: var(--ky-ink-2);
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 0.75rem 0.9rem;
  min-height: 48px;
  font-family: inherit;
  font-size: var(--t-base);
  color: var(--ky-ink);
  background: var(--ky-paper);
  border: 1px solid var(--ky-line);
  border-radius: var(--r-sm);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  -webkit-appearance: none;
  appearance: none;
}

.field textarea { min-height: 96px; resize: vertical; line-height: 1.55; }

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--ky-blue);
  box-shadow: 0 0 0 3px rgba(27, 79, 216, 0.12);
}

.field input::placeholder,
.field textarea::placeholder { color: var(--ky-ink-3); opacity: 0.75; }

.field small {
  font-size: var(--t-xs);
  color: var(--ky-ink-3);
  line-height: 1.5;
}

/* Seta do select */
.field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5 6 6.5l5-5' stroke='%236E747F' stroke-width='1.6' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.9rem center;
  padding-right: 2.4rem;
}

/* Campo de arquivo */
.field input[type="file"] {
  padding: 0.5rem;
  font-size: var(--t-sm);
  cursor: pointer;
}
.field input[type="file"]::file-selector-button {
  padding: 0.5rem 0.9rem;
  margin-right: 0.75rem;
  font: inherit;
  font-weight: 600;
  color: var(--ky-blue);
  background: var(--ky-blue-soft);
  border: 0;
  border-radius: 100px;
  cursor: pointer;
  transition: background-color 0.2s ease;
}
.field input[type="file"]::file-selector-button:hover { background: #DCE6FA; }

.field input[type="checkbox"] { accent-color: var(--ky-blue); }

/* Erro de validação */
.field--bad input,
.field--bad select,
.field--bad textarea { border-color: #C0392B; }

.field__err {
  font-size: var(--t-xs);
  font-weight: 600;
  color: #C0392B;
}

.form__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  padding-top: var(--sp-2);
}
.form__acts .btn { flex: 1 1 auto; }
@media (min-width: 620px) { .form__acts .btn { flex: 0 0 auto; } }

/* ------------------------------------------------------------------
   7. Utilitários
   ------------------------------------------------------------------ */
.muted { color: var(--ky-ink-3); }
.tiny  { font-size: var(--t-xs); }
.right { margin-left: auto; }
.stack { display: grid; gap: var(--sp-3); }

/* ------------------------------------------------------------------
   8. Animação de entrada
   ------------------------------------------------------------------ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.9s var(--ease-out),
              transform 0.9s var(--ease-out);
  will-change: opacity, transform;
}
.reveal.is-in { opacity: 1; transform: none; }

/* Atraso em cascata para grupos */
.reveal[data-d="1"] { transition-delay: 0.08s; }
.reveal[data-d="2"] { transition-delay: 0.16s; }
.reveal[data-d="3"] { transition-delay: 0.24s; }
.reveal[data-d="4"] { transition-delay: 0.32s; }
.reveal[data-d="5"] { transition-delay: 0.40s; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
}