/* =============================================================
   DUARTE PINTO — dmpinto.com
   Folha de estilos principal.

   Índice:
   1. Reset & base
   2. Tokens de design (cores, tipografia, espaçamento)
   3. Utilitários
   4. Navegação
   5. Hero
   6. Secções gerais
   7. About
   8. Projects
   9. Writing
   10. Contact
   11. Footer
   12. Animações / reveal on scroll
   13. Responsive (tablet / mobile)
   14. Acessibilidade (prefers-reduced-motion, focus)
   ============================================================= */


/* -------------------------------------------------------------
   1. RESET & BASE
   ------------------------------------------------------------- */

*,
*::before,
*::after {
  box-sizing: border-box;
}

* {
  margin: 0;
  padding: 0;
}

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

html:focus-within {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
  list-style: none;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
}


/* -------------------------------------------------------------
   2. TOKENS DE DESIGN
   Podes ajustar as cores aqui — o resto do site adapta-se
   automaticamente.
   ------------------------------------------------------------- */

:root {
  /* ---- Cor ---- */
  --color-bg:            #fbfaf8;   /* fundo principal, off-white */
  --color-bg-tinted:     #f4f3f0;   /* fundo ligeiramente diferente para alternar secções */
  --color-surface:       #ffffff;   /* cartões, superfícies elevadas */
  --color-text:          #16161a;   /* texto principal, quase preto */
  --color-text-secondary:#55565f;   /* texto secundário */
  --color-text-tertiary: #8b8c93;   /* texto auxiliar / legendas */
  --color-border:        rgba(20, 20, 24, 0.09);
  --color-border-strong: rgba(20, 20, 24, 0.16);

  --color-accent:        #0a5cff;   /* cor de destaque — usa-se pouco, de propósito */
  --color-accent-soft:   rgba(10, 92, 255, 0.08);

  --color-status-active: #0a5cff;
  --color-status-done:   #1a8a5c;
  --color-status-paused: #b1750b;

  --color-inverse-bg:    #111113;
  --color-inverse-text:  #fbfaf8;

  /* ---- Tipografia ---- */
  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text",
               "Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --fs-hero-name:  clamp(2.6rem, 5.4vw + 1rem, 5.25rem);
  --fs-hero-role:  clamp(1.05rem, 0.9vw + 0.85rem, 1.4rem);
  --fs-section-title: clamp(1.9rem, 2.6vw + 1rem, 2.75rem);
  --fs-h3: clamp(1.15rem, 0.6vw + 1rem, 1.3rem);
  --fs-body: 1.0625rem;
  --fs-small: 0.9rem;
  --fs-tiny: 0.78rem;

  /* ---- Espaçamento ---- */
  --space-section-y: clamp(5rem, 10vw, 9rem);
  --container-width: 1120px;
  --container-padding: clamp(1.5rem, 5vw, 3rem);

  /* ---- Forma ---- */
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 26px;
  --radius-pill: 999px;

  /* ---- Sombra (muito subtil, de propósito) ---- */
  --shadow-xs: 0 1px 2px rgba(16, 16, 20, 0.04);
  --shadow-sm: 0 2px 8px rgba(16, 16, 20, 0.05);
  --shadow-md: 0 12px 32px rgba(16, 16, 20, 0.08);
  --shadow-lg: 0 24px 60px rgba(16, 16, 20, 0.12);

  /* ---- Movimento ---- */
  --ease-standard: cubic-bezier(0.22, 1, 0.36, 1);
  --duration-fast: 180ms;
  --duration-base: 320ms;
  --duration-slow: 560ms;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
}


/* -------------------------------------------------------------
   3. UTILITÁRIOS
   ------------------------------------------------------------- */

.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 1000;
  padding: 0.75rem 1.25rem;
  background: var(--color-inverse-bg);
  color: var(--color-inverse-text);
  border-radius: var(--radius-sm);
  transition: top var(--duration-fast) var(--ease-standard);
}

.skip-link:focus {
  top: 1rem;
}

.section__inner {
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

.section__inner--narrow {
  max-width: 720px;
}

.section__inner--center {
  text-align: center;
}

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

.section--tinted {
  background: var(--color-bg-tinted);
}

.section__eyebrow {
  font-size: var(--fs-tiny);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.9rem;
}

.section__title {
  font-size: var(--fs-section-title);
  font-weight: 650;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 1rem;
}

.section__subtitle {
  color: var(--color-text-secondary);
  font-size: 1.05rem;
  max-width: 46ch;
  margin-bottom: 3rem;
}

.section__inner--center .section__subtitle {
  margin-inline: auto;
}

.inline-link {
  color: var(--color-accent);
  text-underline-offset: 3px;
  text-decoration: underline;
  text-decoration-color: rgba(10, 92, 255, 0.35);
  transition: text-decoration-color var(--duration-fast) var(--ease-standard);
}

.inline-link:hover {
  text-decoration-color: currentColor;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius-pill);
  font-size: 0.95rem;
  font-weight: 600;
  transition: transform var(--duration-fast) var(--ease-standard),
              box-shadow var(--duration-fast) var(--ease-standard),
              background-color var(--duration-fast) var(--ease-standard),
              border-color var(--duration-fast) var(--ease-standard);
}

.btn--primary {
  background: var(--color-inverse-bg);
  color: var(--color-inverse-text);
  box-shadow: var(--shadow-xs);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border-strong);
}

.btn--ghost:hover {
  transform: translateY(-2px);
  border-color: var(--color-text);
}

.tag {
  display: inline-flex;
  align-items: center;
  font-size: var(--fs-tiny);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-text-secondary);
  background: var(--color-bg-tinted);
  border: 1px solid var(--color-border);
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-pill);
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: var(--fs-tiny);
  font-weight: 600;
  color: var(--color-text-secondary);
}

.status::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.status--active { color: var(--color-status-active); }
.status--done   { color: var(--color-status-done); }
.status--paused { color: var(--color-status-paused); }


/* -------------------------------------------------------------
   4. NAVEGAÇÃO
   ------------------------------------------------------------- */

.site-header {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 500;
  padding-block: 1.1rem;
  transition: padding var(--duration-base) var(--ease-standard),
              background-color var(--duration-base) var(--ease-standard),
              box-shadow var(--duration-base) var(--ease-standard),
              border-color var(--duration-base) var(--ease-standard);
  border-bottom: 1px solid transparent;
}

/* Estado ativo depois de fazer scroll — controlado via JS (script.js) */
.site-header--scrolled {
  padding-block: 0.7rem;
  background: rgba(251, 250, 248, 0.72);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  backdrop-filter: saturate(180%) blur(16px);
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-xs);
}

.nav {
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: var(--container-padding);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__brand {
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  border: 1px solid var(--color-border-strong);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--duration-fast) var(--ease-standard),
              border-color var(--duration-fast) var(--ease-standard);
  /* mantém o logótipo visível por cima do menu mobile de ecrã inteiro */
  position: relative;
  z-index: 1;
}

.nav__brand:hover {
  transform: scale(1.06);
  border-color: var(--color-text);
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: clamp(1.25rem, 2vw, 2.25rem);
}

.nav__link {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  position: relative;
  padding-block: 0.25rem;
  transition: color var(--duration-fast) var(--ease-standard);
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--duration-base) var(--ease-standard);
}

.nav__link:hover {
  color: var(--color-text);
}

.nav__link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav__link--cta {
  color: var(--color-text);
  font-weight: 600;
  border: 1px solid var(--color-border-strong);
  padding: 0.5rem 1.05rem;
  border-radius: var(--radius-pill);
  transition: background-color var(--duration-fast) var(--ease-standard),
              color var(--duration-fast) var(--ease-standard),
              border-color var(--duration-fast) var(--ease-standard);
}

.nav__link--cta::after {
  display: none;
}

.nav__link--cta:hover {
  background: var(--color-inverse-bg);
  color: var(--color-inverse-text);
  border-color: var(--color-inverse-bg);
}

.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  /* position + z-index garantem que o botão (e o ícone "X") ficam
     sempre visíveis por cima do menu de ecrã inteiro em mobile */
  position: relative;
  z-index: 1;
}

.nav__toggle span {
  display: block;
  height: 1.5px;
  width: 20px;
  background: var(--color-text);
  transition: transform var(--duration-fast) var(--ease-standard),
              opacity var(--duration-fast) var(--ease-standard);
}


/* -------------------------------------------------------------
   5. HERO
   ------------------------------------------------------------- */

.hero {
  min-height: 100svh;
  min-height: 100vh; /* fallback para browsers sem suporte a svh */
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  padding-inline: var(--container-padding);
  padding-top: 5rem;
}

.hero__inner {
  max-width: var(--container-width);
  margin-inline: auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: clamp(2.5rem, 6vw, 5rem);
}

.hero__eyebrow {
  font-size: var(--fs-small);
  color: var(--color-text-tertiary);
  font-weight: 500;
  margin-bottom: 0.9rem;
}

.hero__name {
  font-size: var(--fs-hero-name);
  font-weight: 680;
  letter-spacing: -0.03em;
  line-height: 1.02;
}

.hero__role {
  font-size: var(--fs-hero-role);
  color: var(--color-text-secondary);
  font-weight: 500;
  margin-top: 0.6rem;
}

.hero__tagline {
  margin-top: 1.4rem;
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  max-width: 42ch;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 2.5rem;
}

.hero__photo {
  justify-self: center;
  width: 100%;
  max-width: 360px;
}

.hero__photo-frame {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: var(--color-surface);
}

/* moldura subtil em glass sobre a foto — puramente decorativa */
.hero__photo-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.15);
  pointer-events: none;
}

.hero__photo-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.scroll-cue {
  position: absolute;
  bottom: clamp(1.5rem, 4vh, 3rem);
  left: 50%;
  transform: translateX(-50%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 44px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-pill);
}

.scroll-cue__line {
  width: 2px;
  height: 8px;
  border-radius: var(--radius-pill);
  background: var(--color-text-tertiary);
  animation: scrollCue 1.8s var(--ease-standard) infinite;
}

@keyframes scrollCue {
  0%   { transform: translateY(0);    opacity: 1; }
  60%  { transform: translateY(10px); opacity: 0.2; }
  61%  { transform: translateY(-6px); opacity: 0; }
  100% { transform: translateY(0);    opacity: 1; }
}


/* -------------------------------------------------------------
   7. ABOUT
   ------------------------------------------------------------- */

.about__body p {
  color: var(--color-text-secondary);
  font-size: 1.08rem;
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.about__body p:last-child {
  margin-bottom: 0;
}


/* -------------------------------------------------------------
   8. PROJECTS
   ------------------------------------------------------------- */

.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.project-card {
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform var(--duration-base) var(--ease-standard),
              box-shadow var(--duration-base) var(--ease-standard),
              border-color var(--duration-base) var(--ease-standard);
}

.project-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}

.project-card__image {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.project-card__image--placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #eceae5, #f7f6f3);
}

.project-card__image-glyph {
  font-size: 2.75rem;
  font-weight: 700;
  color: rgba(20, 20, 24, 0.14);
  letter-spacing: -0.02em;
}

.project-card:hover .project-card__image-glyph {
  color: rgba(20, 20, 24, 0.2);
  transition: color var(--duration-base) var(--ease-standard);
}

.project-card__body {
  padding: 1.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  flex: 1;
}

.project-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.project-card__title {
  font-size: var(--fs-h3);
  font-weight: 640;
  letter-spacing: -0.01em;
}

.project-card__desc {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  line-height: 1.55;
  flex: 1;
}

.project-card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.9rem;
  font-weight: 600;
  margin-top: 0.4rem;
}

.project-card__link span {
  transition: transform var(--duration-fast) var(--ease-standard);
}

.project-card__link:hover span {
  transform: translateX(3px);
}


/* -------------------------------------------------------------
   9. WRITING
   ------------------------------------------------------------- */

.writing-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.writing-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.75rem 2rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: transform var(--duration-base) var(--ease-standard),
              box-shadow var(--duration-base) var(--ease-standard),
              border-color var(--duration-base) var(--ease-standard);
}

.writing-card:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
  border-color: var(--color-border-strong);
}

.writing-card__date {
  display: block;
  font-size: var(--fs-tiny);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  margin-bottom: 0.5rem;
}

.writing-card__title {
  font-size: var(--fs-h3);
  font-weight: 620;
  letter-spacing: -0.01em;
  margin-bottom: 0.4rem;
}

.writing-card__desc {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  max-width: 60ch;
}

.writing-card__arrow {
  flex-shrink: 0;
  font-size: 1.2rem;
  color: var(--color-text-tertiary);
  transition: transform var(--duration-base) var(--ease-standard),
              color var(--duration-base) var(--ease-standard);
}

.writing-card:hover .writing-card__arrow {
  transform: translateX(4px);
  color: var(--color-text);
}


/* -------------------------------------------------------------
   10. CONTACT
   ------------------------------------------------------------- */

.section--contact {
  padding-bottom: clamp(6rem, 12vw, 10rem);
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-top: 1rem;
}

.contact-link {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  min-width: 190px;
  padding: 1.1rem 1.4rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  text-align: left;
  transition: transform var(--duration-base) var(--ease-standard),
              box-shadow var(--duration-base) var(--ease-standard),
              border-color var(--duration-base) var(--ease-standard);
}

.contact-link:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-sm);
  border-color: var(--color-border-strong);
}

.contact-link__label {
  font-size: var(--fs-tiny);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
}

.contact-link__value {
  font-size: 0.98rem;
  font-weight: 550;
  color: var(--color-text);
}


/* -------------------------------------------------------------
   11. FOOTER
   ------------------------------------------------------------- */

.site-footer {
  padding: 2.5rem var(--container-padding) 3rem;
  text-align: center;
  color: var(--color-text-tertiary);
  font-size: var(--fs-small);
  border-top: 1px solid var(--color-border);
}


/* -------------------------------------------------------------
   12. ANIMAÇÕES / REVEAL ON SCROLL
   As classes .reveal começam invisíveis e ligeiramente deslocadas;
   o script.js adiciona .is-visible quando a secção entra no ecrã.
   ------------------------------------------------------------- */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity var(--duration-slow) var(--ease-standard),
              transform var(--duration-slow) var(--ease-standard);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal--delay-1.is-visible { transition-delay: 90ms; }
.reveal--delay-2.is-visible { transition-delay: 180ms; }


/* -------------------------------------------------------------
   13. RESPONSIVE
   ------------------------------------------------------------- */

/* Tablet */
@media (max-width: 900px) {
  .hero__inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero__tagline {
    margin-inline: auto;
  }

  .hero__actions {
    justify-content: center;
  }

  .hero__photo {
    order: -1;
    max-width: 220px;
    margin-inline: auto;
  }

  .project-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Mobile */
@media (max-width: 640px) {
  .nav__toggle {
    display: flex;
  }

  .nav__menu {
    position: fixed;
    inset: 0;
    top: 0;
    flex-direction: column;
    justify-content: center;
    gap: 2rem;
    background: var(--color-bg);
    transform: translateX(100%);
    transition: transform var(--duration-base) var(--ease-standard);
  }

  .nav__menu.is-open {
    transform: translateX(0);
  }

  .nav__link {
    font-size: 1.4rem;
  }

  .project-grid {
    grid-template-columns: 1fr;
  }

  .writing-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .writing-card__arrow {
    align-self: flex-end;
  }

  .contact-link {
    width: 100%;
  }

  .hero__actions .btn {
    flex: 1;
    justify-content: center;
  }
}

/* Quando o menu mobile está aberto, impede o scroll do body */
.nav-open {
  overflow: hidden;
}

/* O botão hamburguer transforma-se em "X" quando o menu está aberto */
.nav__toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.nav__toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav__toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}


/* -------------------------------------------------------------
   14. ACESSIBILIDADE
   ------------------------------------------------------------- */

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

/* Respeita utilizadores que pedem menos movimento no sistema operativo */
@media (prefers-reduced-motion: reduce) {
  html:focus-within {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  .scroll-cue__line {
    animation: none;
  }
}