/* ===================================================
   Design System , Floriano Silva Portfolio
   Baseado fielmente no Figma: floriano.des.br
   =================================================== */

/* --- Variáveis ---------------------------------------- */
:root {
  /* ─── Cores , Primitivas ─────────────────────────── */
  --color-brand-500:   #ee782e;
  --color-brand-600:   #d4641a;
  --color-dark-900:    #01071d;
  --color-neutral-050: #f7f7f7;
  --color-neutral-100: #ececec;
  --color-neutral-200: #e6e6e6;
  --color-neutral-500: #6b7280; /* #777 original falhava WCAG AA , 4.61:1 ✓ */
  --color-neutral-600: #54595f;
  --color-white:       #ffffff;

  /* ─── Cores , Semânticas ─────────────────────────── */
  --clr-orange:        var(--color-brand-500);
  --clr-orange-dark:   var(--color-brand-600);
  --clr-orange-readable:#9f4505;
  --clr-dark:          var(--color-dark-900);
  --clr-text:          rgba(1, 7, 29, 0.80);
  --clr-text-dark:     var(--color-dark-900);
  --clr-text-muted:    var(--color-neutral-600);
  --clr-text-subtle:   var(--color-neutral-500); /* 4.61:1 , passa WCAG AA ✓ */
  --clr-date:          #767676;                  /* era #adadad (2.3:1 ✗) → 4.54:1 ✓ */
  --clr-light:         var(--color-neutral-200);
  --clr-border:        var(--color-neutral-200);
  --clr-white:         var(--color-white);
  --clr-cta-bg:        var(--color-neutral-100);
  --clr-edu-border:    #f3b77f;

  /* Cores sociais */
  --clr-linkedin:      #0077b5;
  --clr-whatsapp:      #25d366;

  /* ─── Tipografia ─────────────────────────────────── */
  --font:              'Montserrat', sans-serif;
  --fw-light:          300;
  --fw-regular:        400;
  --fw-medium:         500;
  --fw-semibold:       600;
  --fw-bold:           700;

  /* Escala de tipo , use estas variáveis para novos componentes */
  --text-xs:   clamp(0.75rem,  1vw,   0.875rem);
  --text-sm:   clamp(0.875rem, 1.2vw, 1rem);
  --text-base: 1rem;
  --text-lg:   clamp(1.125rem, 1.5vw, 1.25rem);
  --text-xl:   clamp(1.25rem,  2vw,   1.5rem);
  --text-2xl:  clamp(1.5rem,   3vw,   2rem);
  --text-3xl:  clamp(2rem,     4vw,   3rem);
  --text-4xl:  clamp(2.5rem,   6vw,   5rem);

  /* Line heights */
  --leading-tight:  1.2;
  --leading-normal: 1.5;
  --leading-loose:  1.8;

  /* ─── Espaçamento , escala 4px ───────────────────── */
  --space-1:  4px;
  --space-2:  8px;
  --space-3:  12px;
  --space-4:  16px;
  --space-5:  20px;
  --space-6:  24px;
  --space-8:  32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;

  /* ─── Layout ─────────────────────────────────────── */
  --container-max: 1392px;
  --container-px:  clamp(var(--space-4), 2.4vw, var(--space-6));
  --section-py:    clamp(80px, 9vw, 130px);
  --page-top-offset: clamp(136px, 12vw, 168px);
  --page-intro-gap: clamp(16px, 2vw, 24px);
  --page-intro-after: clamp(40px, 5vw, 56px);
  --nav-height:    80px;
  /* Nota: .nav usa max-width: 1440px (= --container-max + 2×24px padding do header) */

  /* ─── Bordas & Raios ─────────────────────────────── */
  --radius-sm:   8px;
  --radius-md:   16px;
  --radius-full: 99px;

  /* ─── Sombras ────────────────────────────────────── */
  --shadow-sm:    0 1px 3px rgba(0, 0, 0, 0.10);
  --shadow-card:  0 0 10px rgba(0, 0, 0, 0.15);
  --shadow-md:    0 4px 12px rgba(0, 0, 0, 0.12);
  --shadow-lg:    0 8px 30px rgba(0, 0, 0, 0.15);
  --shadow-brand: 0 8px 24px rgba(238, 120, 46, 0.40);

  /* ─── Transições ─────────────────────────────────── */
  --transition:      0.22s ease;
  --transition-slow: 0.40s ease;
  --home-stats-height: 180px;

  /* ─── Tokens de projeto (camada de conteúdo) ─────── */
  /* Cores específicas de cards de projeto , não usar fora desse contexto */
  --card-quantum:   #272727;
  --card-2p:        #2409a9;
  --card-bit:       rgba(10, 1, 70, 0.97);
  --card-farm:      #00cd93;
  --card-olho-vivo:    #ece8df;
  --card-figurinhas:   #0c2b1a;
}

/* --- Base -------------------------------------------- */
body {
  font-family: var(--font);
  font-size: 1rem;
  color: var(--clr-text);
  background: linear-gradient(90deg, #f7f7f7 0%, #e2e2e2 100%);
  /* background-attachment: fixed removido , causa repaint contínuo no iOS/Android */
}

/* --- Utilitários ------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-px);
}

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

section[id] {
  scroll-margin-top: calc(var(--nav-height) + 56px);
}

.section-title {
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: var(--fw-light);
  line-height: 1.2;
  letter-spacing: -0.03em;
  color: var(--clr-text-dark);
}

.section-title--home {
  font-size: clamp(2.1rem, 4.3vw, 3.8rem);
  line-height: 1.18;
  max-width: 980px;
}

.section-kicker {
  font-size: 0.8rem;
  font-weight: var(--fw-semibold);
  letter-spacing: 0;
  text-transform: uppercase;
  color: var(--clr-orange-readable);
  margin-bottom: 16px;
}

.section-subtitle {
  max-width: 760px;
  font-size: 1.05rem;
  color: var(--clr-text);
  line-height: 1.7;
  margin-bottom: clamp(40px, 5vw, 56px);
}

.page-intro {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--page-intro-gap);
  margin-bottom: var(--page-intro-after);
}

.page-intro .section-kicker,
.page-intro .section-title,
.page-intro .section-subtitle {
  margin-bottom: 0;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: clamp(40px, 5vw, 64px);
  flex-wrap: wrap;
}

/* --- Botões ------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font);
  font-size: 1rem;
  font-weight: var(--fw-medium);
  padding: 12px 24px;
  border-radius: var(--radius-full);
  transition: transform var(--transition), filter var(--transition), box-shadow var(--transition);
  line-height: 1.5;
  white-space: nowrap;
  cursor: pointer;
  border: none;
}

.btn:hover {
  transform: translateY(-2px);
  filter: brightness(1.05);
}

.btn:active {
  transform: translateY(0);
}

.btn--orange {
  background: var(--clr-orange);
  color: var(--clr-text-dark);
}

.btn--orange:hover {
  box-shadow: var(--shadow-brand);
}

.btn--white-glass {
  background: rgba(255, 255, 255, 0.62);
  color: rgba(1, 7, 29, 0.8);
  backdrop-filter: blur(4px);
}

.btn--white-glass:hover {
  background: rgba(255, 255, 255, 0.82);
}

/* --- Foco visível (a11y) ------------------------------ */
/* Garante indicador de foco para navegação por teclado em todos os elementos */
:focus-visible {
  outline: 2px solid var(--clr-orange);
  outline-offset: 3px;
  border-radius: 2px;
}

.btn:focus-visible,
.hero__cta:focus-visible,
.project-card__btn:focus-visible,
.featured-project-card__btn:focus-visible {
  outline-offset: 4px;
  border-radius: var(--radius-full);
}

.nav__social-btn:focus-visible,
.cta-social-btn:focus-visible {
  border-radius: 50%;
  outline-offset: 3px;
}

.post-card__link:focus-visible {
  outline-offset: 0;
  border-radius: var(--radius-md);
}

.carousel__btn:focus-visible,
.carousel__dot:focus-visible,
.testimonials__btn:focus-visible,
.testimonials__dot:focus-visible {
  outline-offset: 3px;
}