/* Styled landing page — FS12 Week 2 rubric + bonus criteria */

:root {
  /* CSS custom properties (bonus) */
  --color-bg: #f8fafc;
  --color-surface: rgb(255, 255, 255);
  --color-text: #0f172a;
  --color-muted: rgb(71, 85, 105);
  --color-accent: #0d9488;
  --color-accent-dark: #0f766e;
  --color-border: rgba(15, 23, 42, 0.12);
  --font-sans: system-ui, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-display: Georgia, "Times New Roman", serif;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
  --transition: 0.25s ease;
  --max-page: 1440px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  /* Bonus: max width + centered layout */
  max-width: var(--max-page);
  margin-left: auto;
  margin-right: auto;
  min-width: 320px;
}

/* Skip link (bonus: accessibility) */
.skip-link {
  position: absolute;
  left: -9999px;
  z-index: 999;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-accent);
  color: white;
  font-weight: 600;
  border-radius: var(--radius);
  transition: top var(--transition), left var(--transition);
}

.skip-link:focus {
  left: var(--space-sm);
  top: var(--space-sm);
  outline: 3px solid #fbbf24;
  outline-offset: 2px;
}

/* Typography */
h1,
h2,
h3 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 var(--space-sm);
}

h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
}

h3 {
  font-size: 1.125rem;
  font-weight: 600;
  font-family: var(--font-sans);
}

p {
  margin: 0 0 var(--space-md);
}

/* Box model: header */
.site-header {
  background: var(--color-surface);
  border-bottom: 3px solid var(--color-accent);
  padding: var(--space-md) var(--space-lg);
  margin: 0;
  box-shadow: var(--shadow);
}

.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  max-width: 100%;
}

.brand {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Flexbox: primary navigation */
.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: var(--space-xs) var(--space-md);
}

.site-nav a {
  display: inline-block;
  padding: var(--space-xs) var(--space-sm);
  color: var(--color-text);
  text-decoration: none;
  font-weight: 600;
  border: 2px solid transparent;
  border-radius: 8px;
  transition: color var(--transition), background var(--transition), border-color var(--transition),
    transform var(--transition);
}

.site-nav a:hover {
  color: var(--color-accent);
  background: rgba(13, 148, 136, 0.08);
}

.site-nav a:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

/* Hero — flex layout + gradient (bonus: HSL / gradients) */
.hero {
  padding: var(--space-xl) var(--space-lg);
  margin: 0;
  background: linear-gradient(
    135deg,
    hsl(180 45% 96%) 0%,
    hsl(200 40% 92%) 50%,
    hsl(173 50% 94%) 100%
  );
  border-bottom: 1px solid var(--color-border);
}

.hero-inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-md);
  max-width: 42rem;
}

.hero-kicker {
  margin: 0;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-accent-dark);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.hero-title {
  margin: 0;
}

.hero-lede {
  margin: 0;
  font-size: 1.125rem;
  color: var(--color-muted);
  max-width: 36ch;
}

/* CTA button — hover + transition (bonus) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font-sans);
  color: white;
  background-color: var(--color-accent);
  border: 2px solid var(--color-accent-dark);
  border-radius: var(--radius);
  cursor: pointer;
  text-decoration: none;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

.btn:hover {
  background-color: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(13, 148, 136, 0.35);
}

.btn:focus-visible {
  outline: 3px solid #fbbf24;
  outline-offset: 3px;
}

/* Main sections — shared box model */
main section {
  padding: var(--space-xl) var(--space-lg);
  margin: 0;
  border-bottom: 1px solid var(--color-border);
}

main section:nth-child(even) {
  background: var(--color-surface);
}

.section-kicker {
  margin: 0 0 var(--space-xs);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-muted);
}

/* About: grid named areas (bonus) + overlapping accent (bonus) */
.about-grid {
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: 1fr;
  grid-template-areas:
    "media"
    "content";
  align-items: start;
  position: relative;
}

.about-grid::before {
  content: "";
  position: absolute;
  width: 120px;
  height: 120px;
  background: linear-gradient(145deg, rgba(13, 148, 136, 0.15), transparent);
  border-radius: 50%;
  top: -20px;
  right: 10%;
  z-index: 0;
  pointer-events: none;
}

.about-media {
  grid-area: media;
  position: relative;
  z-index: 1;
}

.about-image {
  display: block;
  width: 100%;
  max-width: 320px;
  height: auto;
  margin: 0 auto;
  padding: 8px;
  border: 3px solid var(--color-accent);
  border-radius: var(--radius);
  background: white;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}

.about-image:hover {
  transform: scale(1.02);
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.12);
}

.about-content {
  grid-area: content;
  position: relative;
  z-index: 1;
}

/* Skills: complex flex — card row wrap */
.skills-intro {
  margin-bottom: var(--space-lg);
  max-width: 40rem;
}

.skills-cards {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: flex-start;
  align-items: stretch;
}

.skill-card {
  flex: 1 1 280px;
  min-width: 260px;
  max-width: 100%;
  padding: var(--space-md);
  margin: 0;
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  background: rgb(255, 255, 255);
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.skill-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

.skill-card ul {
  margin: 0;
  padding-left: 1.25rem;
}

.skill-card li {
  margin-bottom: var(--space-xs);
}

/* Bonus section: CSS Grid named areas */
.bonus-grid {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: 1fr;
  grid-template-areas:
    "title"
    "a"
    "b"
    "c";
}

.bonus-title {
  grid-area: title;
}

.bonus-card {
  padding: var(--space-md);
  margin: 0;
  border-radius: var(--radius);
  border: 2px dashed rgba(13, 148, 136, 0.45);
  background: linear-gradient(180deg, white, hsl(173 40% 98%));
  transition: border-color var(--transition), transform var(--transition);
}

.bonus-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.bonus-card:nth-of-type(1) {
  grid-area: a;
}

.bonus-card:nth-of-type(2) {
  grid-area: b;
}

.bonus-card:nth-of-type(3) {
  grid-area: c;
}

.bonus-card h3 {
  margin-bottom: var(--space-xs);
}

.bonus-card code {
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
  font-size: 0.9em;
  padding: 0.1em 0.35em;
  background: rgba(15, 23, 42, 0.06);
  border-radius: 4px;
}

/* Contact: flex row on desktop */
.contact-layout {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
  align-items: stretch;
}

.contact-links a {
  color: var(--color-accent-dark);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition);
}

.contact-links a:hover {
  color: #0f766e;
}

.contact-form {
  padding: var(--space-md);
  margin: 0;
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  background: rgb(255, 255, 255);
  box-shadow: var(--shadow);
}

.form-note {
  margin: 0 0 var(--space-md);
  font-size: 0.8125rem;
  line-height: 1.5;
  color: rgb(71, 85, 105);
}

.form-row {
  margin-bottom: var(--space-md);
}

.form-row label {
  display: block;
  margin-bottom: var(--space-xs);
  font-weight: 600;
  font-size: 0.9375rem;
}

.form-row input,
.form-row textarea {
  width: 100%;
  padding: 0.625rem 0.75rem;
  margin: 0;
  font: inherit;
  border: 2px solid var(--color-border);
  border-radius: 8px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-row input:focus-visible,
.form-row textarea:focus-visible {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.25);
}

/* Footer */
.site-footer {
  padding: var(--space-lg);
  margin: 0;
  background: #0f172a;
  color: white;
  border-top: 4px solid var(--color-accent);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  text-align: center;
}

.site-footer p {
  margin: 0;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.85);
}

.site-footer a {
  color: #5eead4;
  text-decoration: underline;
  transition: color var(--transition);
}

.site-footer a:hover {
  color: white;
}

/* Tablet: 768px–1024px */
@media screen and (min-width: 768px) {
  .about-grid {
    grid-template-columns: minmax(240px, 320px) 1fr;
    grid-template-areas: "media content";
    align-items: center;
  }

  .about-image {
    margin: 0;
  }

  .bonus-grid {
    grid-template-columns: repeat(3, 1fr);
    grid-template-areas:
      "title title title"
      "a b c";
  }

  .contact-layout {
    flex-direction: row;
    align-items: flex-start;
  }

  .contact-layout > * {
    flex: 1;
  }
}

/* Desktop: 1024px+ */
@media screen and (min-width: 1024px) {
  .hero-inner {
    max-width: 48rem;
  }

  .skills-cards {
    gap: var(--space-lg);
  }
}

/* Small mobile: 350px+ (rubric) — tighten padding */
@media screen and (max-width: 767px) {
  .site-header,
  .hero,
  main section,
  .site-footer {
    padding-left: max(var(--space-md), 4vw);
    padding-right: max(var(--space-md), 4vw);
  }

  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }
}