/* CSS Variables */
:root {
  --color-page: #4e6579;
  --color-panel: #6486a5;
  --color-card: #355f86;
  --color-nav: #5597d1;
  --color-accent: #e99a63;
  --color-accent-dark: #cf7f4d;
  --color-text: #ffffff;
  --color-ink: #17212b;
  --color-input: #f1f1f1;
  --color-focus: #fff2a8;
  --shadow-soft: 0 6px 14px rgba(20, 37, 53, 0.38);
  --shadow-card: 0 5px 12px rgba(20, 37, 53, 0.35);
  --radius-sm: 0.65rem;
  --radius-md: 0.9rem;
  --radius-pill: 999px;
  --content-width: 72rem;
  --page-gutter: clamp(1rem, 4vw, 3.5rem);
  --font-display: "Arial Rounded MT Bold", "Trebuchet MS", Arial, sans-serif;
  --font-body: "Arial Rounded MT", "Trebuchet MS", Arial, sans-serif;
}

/* Reset and Base Styles */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  min-width: 20rem;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  display: flex;
  flex-direction: column;
  background: var(--color-page);
  color: var(--color-text);
  font-family: var(--font-body);
  line-height: 1.55;
}

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

a {
  color: inherit;
}

button,
input,
textarea {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 0.2rem solid var(--color-focus);
  outline-offset: 0.2rem;
}

::selection {
  color: var(--color-ink);
  background: var(--color-focus);
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  transform: translateY(-160%);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  background: #ffffff;
  color: var(--color-ink);
  font-weight: 700;
  transition: transform 160ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Typography */
h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3,
.button,
.primary-nav a {
  font-family: var(--font-display);
}

h1 {
  margin-bottom: 0.6rem;
  font-size: clamp(1.8rem, 4vw, 2.7rem);
  line-height: 1.1;
}

h2 {
  margin-bottom: 0.5rem;
  font-size: clamp(1.25rem, 2.5vw, 1.65rem);
  line-height: 1.2;
}

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

/* Shared Layout */
.page-shell {
  width: min(100%, var(--content-width));
  margin-inline: auto;
  padding: clamp(2rem, 5vw, 3.5rem) var(--page-gutter);
  flex: 1;
}

.content-panel {
  min-height: 25rem;
  padding: clamp(1.5rem, 4vw, 3rem);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  box-shadow: var(--shadow-soft);
}

.section-intro {
  max-width: 70ch;
  margin-bottom: 1.5rem;
}

/* Header and Navigation */
.site-header {
  background: var(--color-page);
}

.brand-row {
  position: relative;
  min-height: 8.5rem;
  display: grid;
  place-items: center;
  padding: 1.25rem var(--page-gutter);
}

.brand {
  width: min(19rem, 72vw);
  border-radius: var(--radius-sm);
}

.brand img {
  width: 100%;
  height: auto;
}

.primary-nav {
  min-height: 4.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(0.75rem, 4vw, 3rem);
  padding: 0.85rem var(--page-gutter);
  background: var(--color-nav);
}

.primary-nav a {
  min-width: 8.5rem;
  padding: 0.42rem 1.1rem;
  border-radius: var(--radius-pill);
  background: rgba(60, 132, 194, 0.72);
  box-shadow: var(--shadow-card);
  text-align: center;
  text-decoration: none;
  transition: transform 160ms ease, background-color 160ms ease, box-shadow 160ms ease;
}

.primary-nav a:hover,
.primary-nav a:focus-visible {
  transform: translateY(-2px);
  background: #6aa8dd;
}

.primary-nav a.is-active {
  background: var(--color-accent);
  box-shadow: 0 5px 12px rgba(99, 52, 25, 0.42);
}

.menu-toggle {
  display: none;
  width: 3rem;
  height: 3rem;
  padding: 0.65rem;
  border: 0;
  border-radius: var(--radius-sm);
  background: var(--color-nav);
  box-shadow: var(--shadow-card);
  cursor: pointer;
}

.menu-toggle span[aria-hidden="true"] {
  display: block;
  height: 0.18rem;
  margin: 0.28rem 0;
  border-radius: var(--radius-pill);
  background: #ffffff;
}

/* Buttons */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.7rem;
  padding: 0.62rem 1.25rem;
  border: 0;
  border-radius: var(--radius-sm);
  background: var(--color-nav);
  color: var(--color-text);
  box-shadow: var(--shadow-card);
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: transform 160ms ease, background-color 160ms ease, box-shadow 160ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
  background: #69a9df;
  box-shadow: 0 7px 15px rgba(20, 37, 53, 0.42);
}

.button--accent {
  background: var(--color-accent);
}

.button--accent:hover,
.button--accent:focus-visible {
  background: var(--color-accent-dark);
}

.text-link {
  font-weight: 700;
  text-underline-offset: 0.2em;
}

.text-link:hover {
  text-decoration-thickness: 0.18rem;
}

/* Welcome Page */
.welcome-page {
  min-height: 100vh;
  background: var(--color-page);
}

.welcome-shell {
  width: min(75rem, 100%);
  margin: auto;
  padding: clamp(1.5rem, 5vw, 4rem) var(--page-gutter);
}

.welcome-card {
  padding: clamp(1.5rem, 5vw, 3.75rem);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  box-shadow: var(--shadow-soft);
}

.welcome-intro {
  display: grid;
  grid-template-columns: minmax(9rem, 15rem) minmax(0, 1fr);
  align-items: center;
  gap: clamp(1.5rem, 5vw, 4rem);
  max-width: 59rem;
  margin-inline: auto;
}

.profile-mark {
  width: 100%;
}

.welcome-lead {
  margin-bottom: 0.25rem;
  font-weight: 700;
}

.welcome-prompt {
  margin: clamp(1.5rem, 4vw, 3rem) 0 1.15rem;
  text-align: center;
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  font-weight: 700;
}

.welcome-nav {
  display: grid;
  grid-template-columns: repeat(4, minmax(7rem, 1fr));
  gap: clamp(0.75rem, 2.5vw, 2rem);
}

/* Page-Specific Sections */
.about-panel p {
  max-width: 76ch;
}

.about-actions,
.resume-actions,
.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.35rem;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1rem, 3vw, 2rem);
}

.project-card {
  padding: clamp(1.15rem, 3vw, 1.7rem);
  border-radius: var(--radius-md);
  background: var(--color-card);
  box-shadow: var(--shadow-card);
}

.project-card:last-child {
  grid-column: 1 / 2;
}

.project-list {
  padding-left: 1.25rem;
}

.tech-stack {
  font-size: 0.95rem;
}

.resume-viewer {
  min-height: 38rem;
  margin-top: 1.4rem;
  overflow: hidden;
  border-radius: var(--radius-sm);
  background: var(--color-card);
  box-shadow: var(--shadow-card);
}

.resume-viewer object {
  width: 100%;
  min-height: 70vh;
  border: 0;
}

.resume-fallback {
  min-height: 38rem;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 1rem;
  padding: 2rem;
  text-align: center;
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.2rem 0 1.5rem;
}

/* Forms */
.contact-form {
  display: grid;
  gap: 0.95rem;
}

.form-field {
  display: grid;
  gap: 0.35rem;
}

.form-field label {
  font-family: var(--font-display);
  font-weight: 700;
}

.form-field input,
.form-field textarea {
  width: 100%;
  border: 0.15rem solid transparent;
  border-radius: var(--radius-sm);
  background: var(--color-input);
  color: var(--color-ink);
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.16), var(--shadow-card);
}

.form-field input {
  max-width: 24rem;
  min-height: 2.7rem;
  padding: 0.55rem 0.8rem;
}

.form-field textarea {
  min-height: 11rem;
  padding: 0.8rem;
  resize: vertical;
}

.form-field input[aria-invalid="true"],
.form-field textarea[aria-invalid="true"] {
  border-color: #7a0d0d;
}

.field-error {
  min-height: 1.1rem;
  margin: 0;
  color: #fff4d8;
  font-size: 0.9rem;
  font-weight: 700;
}

.form-submit {
  width: 100%;
  margin-top: 0.25rem;
  background: var(--color-card);
}

.form-status {
  min-height: 1.5rem;
  margin: 0;
  font-weight: 700;
}

/* Footer */
.site-footer {
  padding: 1rem var(--page-gutter) 1.5rem;
  background: var(--color-page);
  text-align: center;
  font-size: 0.88rem;
}

.site-footer--welcome {
  padding-top: 0;
}

/* Responsive Styles */
@media (max-width: 62rem) {
  .primary-nav {
    gap: 0.75rem;
  }

  .primary-nav a {
    min-width: 0;
    flex: 1;
  }

  .welcome-nav {
    grid-template-columns: repeat(2, minmax(8rem, 1fr));
  }
}

@media (max-width: 48rem) {
  .brand-row {
    min-height: 6.5rem;
    grid-template-columns: 1fr auto;
    justify-items: start;
  }

  .brand {
    width: min(15rem, 65vw);
  }

  .menu-toggle {
    display: block;
  }

  .primary-nav {
    display: none;
    min-height: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0.65rem;
    padding-block: 1rem;
  }

  .primary-nav.is-open {
    display: flex;
  }

  .primary-nav a {
    width: 100%;
  }

  .welcome-intro {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
  }

  .profile-mark {
    width: min(12rem, 52vw);
  }

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

  .project-card:last-child {
    grid-column: auto;
  }

  .resume-viewer,
  .resume-fallback {
    min-height: 30rem;
  }
}

@media (max-width: 34rem) {
  .page-shell,
  .welcome-shell {
    padding-inline: 0.85rem;
  }

  .content-panel,
  .welcome-card {
    padding: 1.2rem;
  }

  .welcome-nav {
    grid-template-columns: 1fr;
  }

  .welcome-nav .button,
  .about-actions .button,
  .resume-actions .button,
  .contact-links .button {
    width: 100%;
  }

  .contact-links,
  .about-actions,
  .resume-actions {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}