/* ==========================================================================
   jordanliebling.dev — Main Stylesheet
   ========================================================================== */

/* --- Custom Properties --- */
:root {
  --bg: #f5f3ef;
  --bg-alt: #edeae4;
  --text: #1a1a1a;
  --text-muted: #6b6b6b;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --ticker-bg: #1a1a1a;
  --ticker-text: #22c55e;
  --ticker-icon: #facc15;
  --border: #d4d0c8;
  --card-bg: #ffffff;
  --font-mono: 'JetBrains Mono', monospace;
  --font-body: 'Inter', sans-serif;
  --container: 1120px;
  --ticker-height: 2.25rem;
}

[data-theme="dark"] {
  --bg: #131316;
  --bg-alt: #1a1a1f;
  --text: #e4e4e7;
  --text-muted: #b5b5bd;
  --accent: #60a5fa;
  --accent-hover: #93bbfd;
  --ticker-bg: #0a0a0c;
  --ticker-text: #22c55e;
  --ticker-icon: #facc15;
  --border: #2a2a30;
  --card-bg: #1e1e23;
}

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

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

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  padding-top: var(--ticker-height);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.3s, color 0.3s;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--accent-hover);
}

/* --- Utilities --- */
.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;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section-title {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 2.5rem;
  color: var(--text);
  letter-spacing: -0.02em;
}

.section-title::before {
  content: '> ';
  color: var(--text-muted);
}

/* --- Stock Ticker --- */
.ticker {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--ticker-bg);
  overflow: hidden;
  height: var(--ticker-height);
  display: flex;
  align-items: center;
}

.ticker__track {
  display: flex;
  gap: 3rem;
  white-space: nowrap;
  animation: ticker-scroll linear infinite;
  will-change: transform;
}

.ticker__item {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--ticker-text);
  flex-shrink: 0;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
}

a.ticker__item:hover {
  text-decoration: underline;
  color: var(--ticker-text);
}

.ticker__icon {
  color: var(--ticker-icon);
}

.ticker__separator {
  color: #444;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  flex-shrink: 0;
}

@keyframes ticker-scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* --- Hero --- */
.hero {
  padding: 4rem 0 4rem;
  min-height: calc(100vh - var(--ticker-height));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
}

.hero__container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.hero__greeting {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.hero__name {
  font-family: var(--font-mono);
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.hero__tagline {
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--accent);
  margin-bottom: 0.75rem;
  min-height: 1.8em;
}

.hero__cursor {
  animation: blink 1s step-end infinite;
  color: var(--accent);
  font-weight: 400;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.hero__positioning {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--text-muted);
  max-width: 540px;
  margin-bottom: 1rem;
}

.hero__hobbies {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
  letter-spacing: 0.02em;
}

.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 700;
  text-decoration: none;
  border: 2px solid var(--text);
  color: var(--text);
  background: transparent;
  transition: background 0.2s, color 0.2s, transform 0.1s;
  cursor: pointer;
}

.btn:hover {
  background: var(--text);
  color: var(--bg);
}

.btn:active {
  transform: scale(0.98);
}

.btn svg {
  width: 1rem;
  height: 1rem;
  fill: currentColor;
  flex-shrink: 0;
}

.btn--github {
  border-color: #24292f;
  color: #24292f;
}
.btn--github:hover {
  background: #24292f;
  color: #fff;
}

[data-theme="dark"] .btn--github {
  border-color: #e4e4e7;
  color: #e4e4e7;
}
[data-theme="dark"] .btn--github:hover {
  background: #e4e4e7;
  color: #131316;
}

.btn--linkedin {
  border-color: #0a66c2;
  color: #0a66c2;
}
.btn--linkedin:hover {
  background: #0a66c2;
  color: #fff;
}

[data-theme="dark"] .btn--linkedin {
  border-color: #4a9edd;
  color: #4a9edd;
}
[data-theme="dark"] .btn--linkedin:hover {
  background: #4a9edd;
  color: #131316;
}

.btn--hn {
  border-color: #ff6600;
  color: #ff6600;
}
.btn--hn:hover {
  background: #ff6600;
  color: #fff;
}

/* --- Theme Toggle --- */
.theme-toggle {
  position: fixed;
  top: calc(var(--ticker-height) + 0.75rem);
  right: 1.25rem;
  z-index: 99;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 50%;
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, opacity 0.4s ease;
  padding: 0;
}

.theme-toggle.hidden {
  opacity: 0;
  pointer-events: none;
}

.theme-toggle:hover {
  border-color: var(--text-muted);
}

.theme-toggle__icon {
  font-size: 1.125rem;
  line-height: 1;
  transition: transform 0.3s ease;
}

.theme-toggle:hover .theme-toggle__icon {
  transform: rotate(20deg);
}


.hero__scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  color: var(--text-muted);
  opacity: 0;
  animation: scroll-fade 3s ease 2s forwards;
}

.hero__scroll svg {
  animation: scroll-bob 2s ease-in-out 2s infinite;
}

@keyframes scroll-fade {
  0% { opacity: 0; }
  100% { opacity: 0.4; }
}

@keyframes scroll-bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

.hero__photo {
  width: 100%;
  max-width: 280px;
}

.hero__photo img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: top center;
  border: 2px solid var(--border);
  filter: grayscale(15%);
  transform: scaleX(-1);
}

/* --- Tech Stack --- */
.stack {
  padding: 5rem 0;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.stack__items {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.625rem;
}

.stack__item {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-muted);
  white-space: nowrap;
  padding: 0.2rem 0.5rem;
  border: 1px solid var(--border);
  background: var(--card-bg);
  border-radius: 2px;
}

/* --- About --- */
.about {
  padding: 5rem 0;
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.about__card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  padding: 2rem;
  opacity: 0;
  transform: translateY(1rem);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.about__card.visible {
  opacity: 1;
  transform: translateY(0);
}

.about__icon {
  width: 2.5rem;
  height: 2.5rem;
  margin-bottom: 1rem;
  color: var(--text-muted);
}

.about__icon svg {
  width: 100%;
  height: 100%;
}

.about__card h3 {
  font-family: var(--font-mono);
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}

.about__card p {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--text-muted);
}

/* --- Projects --- */
.projects {
  padding: 5rem 0;
  background: var(--bg-alt);
}

.projects__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.project-card {
  display: block;
  background: var(--card-bg);
  border: 1px solid var(--border);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s, box-shadow 0.2s;
  opacity: 0;
  transform: translateY(1rem);
  transition: opacity 0.5s ease, transform 0.5s ease, box-shadow 0.2s;
}

.project-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.project-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  color: inherit;
}

.project-card__preview {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.project-card__placeholder {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--text-muted);
}

.project-card__info {
  padding: 1.5rem;
}

.project-card__info h3 {
  font-family: var(--font-mono);
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.project-card__info p {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 0.75rem;
}

.project-card__link {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--accent);
}

/* --- Footer --- */
.footer {
  padding: 3rem 0;
  border-top: 1px solid var(--border);
}

.footer__container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.footer__links {
  display: flex;
  gap: 2rem;
}

.footer__links a {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}

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

.footer__copy {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.footer__built {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.footer__built a {
  color: var(--text-muted);
  text-decoration: underline;
  text-underline-offset: 2px;
}

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

/* --- Responsive --- */
@media (min-width: 768px) {
  .hero__container {
    display: grid;
    grid-template-columns: 1fr auto;
    grid-template-rows: auto auto;
    column-gap: 3rem;
    row-gap: 1rem;
    align-items: center;
  }

  .hero__top {
    grid-column: 1;
    grid-row: 1;
  }

  .hero__bottom {
    grid-column: 1;
    grid-row: 2;
  }

  .hero__photo {
    grid-column: 2;
    grid-row: 1 / 3;
    max-width: 300px;
  }

  .about__grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .footer__container {
    flex-direction: row;
    justify-content: space-between;
  }
}

@media (min-width: 1200px) {
  .hero {
    padding: 6rem 0 5rem;
  }

  .hero__photo {
    max-width: 340px;
  }

  .about, .projects {
    padding: 6rem 0;
  }
}

@media (max-width: 767px) {
  :root {
    --ticker-height: 2rem;
  }

  .ticker__item {
    font-size: 0.6875rem;
  }

  .theme-toggle {
    top: auto;
    bottom: 1.25rem;
    right: 1.25rem;
  }

  .hero {
    padding: 3rem 0 2rem;
    min-height: auto;
  }

  .hero__container {
    align-items: center;
    text-align: center;
  }

  .hero__photo {
    max-width: 200px;
  }

  .hero__ctas {
    justify-content: center;
  }

  .hero__scroll {
    position: static;
    transform: none;
    margin-top: 1.5rem;
  }

  .about, .projects {
    padding: 3rem 0;
  }

  .section-title {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
  }

  .about__card {
    padding: 1.5rem;
  }

  .btn {
    padding: 0.625rem 1.25rem;
    font-size: 0.8125rem;
  }
}