/* -------------------------------------------------------------------------- */
/*                                Header-Start                                */
/* -------------------------------------------------------------------------- */
/* Header layout */
header {
  position: relative;
  max-width: 600px;
  width: 100%;
  padding: 2rem;
  margin: 1rem;
  background-color: var(--bg);
  overflow: visible;
}

/* -------------------------- Corner-Styling-Start -------------------------- */

.header-corners {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  overflow: visible;
}

.header-corners .bracket {
  fill: none;
  stroke: var(--accent);
  stroke-width: 2;
  stroke-linecap: square;
}

/* --------------------------- Corner-Styling-End --------------------------- */




/* --------------------------- Name-Styling-Start --------------------------- */
header h1 {
  font-size: 2.75rem;
  font-weight: 600;
  letter-spacing: -0.25px;
  margin-top: 0.5rem;
  margin-bottom: 2rem;
  color: var(--text);
  text-align: center;
  text-shadow: 0 1px 2px rgba(var(--accent-rgb), 0.08);
  position: relative;
  display: inline-block;
}
/* ---------------------------- Name-Styling-End ---------------------------- */

/* ------------------------- Accent-Underline-Start ------------------------- */
/* Accent underline */
header h1::after {
  content: "";
  position: absolute;
  bottom: -0.5rem;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  height: 2px;
  background-color: var(--accent);
  opacity: 0.6;
  animation: shrinkUnderline 0.8s ease-out 0.6s forwards;
}

/* Keyframes for underline shrink */
@keyframes shrinkUnderline {
  0% {
    width: 100%;
    opacity: 0.6;
  }
  100% {
    width: 40px;
    opacity: 0.6;
  }
}
/* --------------------------- AccentUnderline-End -------------------------- */
header p {
  font-size: 16.8px;
  font-weight: 400;
  letter-spacing: 0.25px;
  margin-top: -1rem;
  margin-bottom: 2.5rem;
  color: var(--text);
  text-align: center;
  opacity: 0.85;
  text-shadow: 0 1px 1px rgba(var(--accent-rgb), 0.05);
}

/* ------------------------------ Social-Start ------------------------------ */
/* Social Icons */
.social-icons {
  margin: 1rem 0;
  display: flex;
  justify-content: center;
  gap: 1.5rem;
}

.social-icons a {
  color: var(--accent);
  font-size: 1.4rem;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.social-icons a:hover {
  opacity: 0.6;
  transform: scale(1.1);
  transform: translateY(-2px);
}
/* ------------------------------- Socials-End ------------------------------ */

/* --------------------------- Toggle-Button-Start -------------------------- */
#theme-toggle {
  background-color: transparent;
  border: 1px solid var(--accent);
  color: var(--accent);
  padding: 0.6rem 1.2rem;
  margin-top: 2rem;
  font-size: 0.95rem;
  font-family: inherit;
  font-weight: 400;
  letter-spacing: 0.5px;
  border-radius: 4px;
  transition:
    background-color 0.25s ease-in-out,
    color 0.25s ease-in-out,
    transform 0.2s ease-out,
    box-shadow 0.2s ease-out;
}

/* 🎯 Light theme pointer cursor */
html:not([data-theme="dark"]) #theme-toggle {
  cursor: url('/imgs/light-theme-pointer.png') 4 4, pointer;
}

/* 🎯 Dark theme pointer cursor */
html[data-theme="dark"] #theme-toggle {
  cursor: url('/imgs/dark-theme-pointer.png') 4 4, pointer;
}

#theme-toggle:hover {
  background-color: rgba(var(--accent-rgb), 0.12);
  box-shadow: 0 1px 4px rgba(var(--accent-rgb), 0.2);
}

#theme-toggle::after {
  content: "Light Mode"; /* longest label */
  visibility: hidden;
  display: block;
  height: 0;
  overflow: hidden;
}

#theme-toggle:focus {
  outline: none;
}
/* ---------------------------- Toggle-Button-End --------------------------- */


/* Description */
header p {
  font-size: 1rem;
  line-height: 1.5;
  margin-bottom: 2rem;
}

/* ----------------------------- Nav-Links-Start ---------------------------- */
/* Navigation */
.nav-menu {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  justify-content: center;
  gap: 2.5rem;
  font-size: 1rem;
}

.nav-menu a {
  text-decoration: none;
  color: var(--accent);
  font-weight: 500;
  position: relative;
  transition: color 0.3s ease, opacity 0.3s ease;
  letter-spacing: 0.05em;
}

.nav-menu a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 50%;
  width: 0%;
  height: 1px;
  background-color: var(--accent);
  transition: width 400ms cubic-bezier(0.25, 0.8, 0.25, 1),
              left 400ms cubic-bezier(0.25, 0.8, 0.25, 1);
  pointer-events: none;
}
/* Hover underline */
.nav-menu a:hover::after {
  width: 100%;
  left: 0%;
}

/* Focus-visible underline (keyboard navigation only) */
.nav-menu a:focus {
  outline: none; /* remove default browser outline */
}

.nav-menu a:focus-visible::after {
  width: 100%;
  left: 0%;
}

/* ------------------------------ Nav-Links-End ----------------------------- */

/* -------------------------------------------------------------------------- */
/*                                 Header-End                                 */
/* -------------------------------------------------------------------------- */

/* -------------------------------------------------------------------------- */
/*                            Mobile — Landing                                */
/* -------------------------------------------------------------------------- */
@media (max-width: 600px) {
  header {
    padding: 2rem 1.25rem;
    margin: 0.75rem;
  }

  header h1 {
    font-size: 2.1rem;
    margin-bottom: 1.5rem;
  }

  header p {
    font-size: 0.95rem;
    margin-bottom: 2rem;
    padding: 0 0.25rem;
  }

  .social-icons {
    gap: 1.25rem;
    margin: 0.75rem 0;
  }

  .social-icons a {
    font-size: 1.25rem;
  }

  .nav-menu {
    gap: 1.5rem;
    font-size: 0.95rem;
  }

  #theme-toggle {
    margin-top: 1.5rem;
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
  }
}

@media (max-width: 380px) {
  header h1 {
    font-size: 1.85rem;
  }

  .nav-menu {
    gap: 1.1rem;
    font-size: 0.88rem;
  }
}