/* ==============================
   Variables & Reset
   ============================== */
:root {
  --clr-bg: #333333;
  --clr-primary: #ffffff;
  --clr-accent: #f0c040;
  --clr-text: #ddddddff;
  --site-width: 69.375rem; /* ~1110px */
  --gutter: 1.5rem;
  --transition: 0.3s ease-in-out;
  --nav-height: 4rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: var(--clr-text);
  background-color: var(--clr-bg);
  line-height: 1.5;
}

/* ==============================
   Layout Helpers
   ============================== */
.container {
  max-width: var(--site-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

/* ==============================
   Navigation
   ============================== */
#top-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  background-color: rgba(27, 27, 27, 0.95);
  display: flex;
  align-items: center;
  z-index: 1000;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

#top-nav ul {
  display: flex;
  gap: 2rem;
  margin-left: auto;
  margin-right: 120px;
  list-style: none;
}

#top-nav a {
  text-decoration: none;
  color: var(--clr-primary);
  font-weight: 500;
  transition: color var(--transition);
}

#top-nav a:hover {
  color: var(--clr-accent);
}

body > section {
  scroll-margin-top: var(--nav-height);
}

/* ==============================
   Hero Section
   ============================== */
#hero {
  min-height: calc(100vh - var(--nav-height));
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #2c2c2cff, #363636ff);
  text-align: center;
  padding: 0 var(--gutter);
}

#hero .hero-content {
  /* no max-width here; handled by container */
}

#hero h1 {
  font-size: 3rem;
  color: var(--clr-primary);
  margin-bottom: 1rem;
}

#hero p {
  font-size: 1.25rem;
  max-width: 30rem;
  margin: 0 auto;
  color: var(--clr-text);
}

#hero span {
  color: var(--clr-accent);
  display: inline-block;
  transition: transform var(--transition)
}

#hero span:hover {
  transform: translateY(-20px);
}

/* Underline style for Daniel Anaya */
.underline {
  text-decoration: underline;
  text-decoration-thickness: 3px;
  text-underline-offset: 6px;
  color: var(--clr-primary);
}

/* ==============================
   Projects Section
   ============================== */
#projects {
  padding: 4rem 0;
  background-color: #242424ff;
  text-align: center;
}

#projects h2 {
  font-size: 2rem;
  color: var(--clr-accent);
  margin-bottom: 2rem;
}

/* Grid container for projects */
.project-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  max-width: 900px;
  margin: 0 auto;
}

.project-card {
  background-color: #1b1b1bff;
  border: 1px solid #131313ff;
  border-radius: 0.5rem;
  padding: 1.5rem;
  text-align: left;
  transition: transform var(--transition), box-shadow var(--transition), background-color var(--transition);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.project-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
  background-color: #111111ff;
}

.project-card img {
  width: 100%;
  height: auto;
  border-radius: 0.5rem;
  object-fit: cover;
}

.project-card h3 {
  font-size: 1.25rem;
  margin: 0;
  color: var(--clr-primary);
}

.project-card p {
  font-size: 1rem;
  color: var(--clr-text);
}

.project-links {
  display: flex;
  gap: 1rem;
  margin-top: auto;
  margin-left: auto;
  margin-right: auto;
}

.project-links a {
  text-decoration: none;
  color: var(--clr-primary);
  font-size: 18px;
  font-weight: 500;
  border-bottom: 2px solid transparent;
  transition: border-color var(--transition), color var(--transition);
}

.project-links a:hover {
  color: var(--clr-accent);
  border-bottom-color: var(--clr-accent);
}

/* ==============================
   Contact Section
   ============================== */
#contact {
  padding: 4rem 0;
  background-color: #242424ff;
  text-align: center;
}

#contact .container {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

#contact .contact-text {
  max-width: 100%;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

#contact h2 {
  font-size: 2rem;
  color: var(--clr-accent);
  /* Make sure margin-bottom is zero for flex alignment */
}

#contact form {
  max-width: 30rem;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  position: relative;
  padding-top: 3.5rem;
  padding-bottom: 3.5rem; /* space for button */
  width: 100%;
}

#contact input,
#contact textarea {
  border: none;
  border-bottom: 2px solid #ccc;
  background: transparent;
  font-family: inherit;
  font-size: 1rem;
  padding: 0.5rem 0;
  color: var(--clr-text);
  transition: border-color 0.3s ease;
  width: 100%;
  box-sizing: border-box;
}

#contact input::placeholder,
#contact textarea::placeholder {
  color: #999;
  font-weight: 400;
}

#contact input:focus,
#contact textarea:focus {
  border-bottom-color: var(--clr-accent);
  outline: none;
}

#contact button {
  background: transparent;
  color: var(--clr-primary);
  border: none;
  border-bottom: 2px solid var(--clr-accent);
  font-size: 1rem;
  padding: 0.5rem 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: color 0.3s ease;
  margin-left: auto;
  display: block;
  white-space: nowrap;
  width: auto;
}

#contact button:hover {
  color: var(--clr-accent);
}

#contact button:active {
  color: #a06d00;
}

/* ==============================
   Footer
   ============================== */
footer {
  padding: 2rem var(--gutter);
  background-color: #131313ff;
}

#bottom-nav ul {
  display: flex;
  justify-content: center;
  gap: 2rem;
  list-style: none;
  margin-bottom: 1rem;
}

#bottom-nav a {
  text-decoration: none;
  color: var(--clr-primary);
  transition: color var(--transition);
  font-weight: 500;
}

#bottom-nav a:hover {
  color: var(--clr-accent);
}

.social-media {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
}

.social-media a {
  color: var(--clr-primary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition);
}

.social-media a:hover {
  color: var(--clr-accent);
}

.social-media img {
  max-width: 32px;
  filter: invert(100%);
}

.social-media img:hover {
  transition: transform .4s ease;
  transform: scale(1.1);
}

.copyright {
  display: flex;
  justify-content: center;
  text-align: center;
  margin-top: 20px;
  margin-bottom: 5px;
}

/* ==============================
   Medium Screens (≥768px)
   ============================== */
@media (min-width: 768px) {
  /* Hero Section */
  #hero {
    justify-content: flex-start;
    padding: 0;
    text-align: left;
  }
  
  #hero .container {
    /* Ensures max width and consistent padding */
  }

  #hero h1 {
    font-size: 3.5rem;
  }

  #hero p {
    max-width: none;
  }

  /* Projects Section */
  #projects {
    text-align: left;
  }

  #projects .container {
    padding-left: var(--gutter);
    padding-right: var(--gutter);
  }

  /* Grid switches to 2 columns */
  .project-grid {
    grid-template-columns: repeat(2, 1fr);
    max-width: var(--site-width);
    margin: 0 auto;
    gap: 2rem;
  }

  /* Contact Section */
  #contact {
    text-align: left;
  }

  #contact .contact-text {
  max-width: 50%;
  }

  #contact .container {
    flex-direction: row;
    align-items: flex-start;
    gap: 4rem;
    max-width: var(--site-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--gutter);
    padding-right: var(--gutter);
  }

  #contact h2 {
    flex: 1;
    margin-bottom: 0;
    text-align: left;
    display: flex;
    align-items: center; /* vertically center header with form */
  }

  #contact p {
    flex: 1;
    margin-bottom: 0;
    text-align: left;
    display: flex;
    align-items: center; /* vertically center header with form */
  }

  #contact form {
    flex: 2;
    margin: 0;
  }
}

/* ==============================
   Large Screens (≥1024px)
   ============================== */
@media (min-width: 1024px) {
  #hero h1 {
    font-size: 4rem;
  }

  #hero p {
    font-size: 1.5rem;
  }
}