/*
 * Portfolio – Modern styles
 * Design tokens, layout, and animations
 */

:root {
  /* Colors */
  --color-bg: #0f0f12;
  --color-surface: #18181c;
  --color-surface-elevated: #222228;
  --color-text: #e4e4e7;
  --color-text-muted: #a1a1aa;
  --color-accent: #22d3ee;
  --color-accent-dim: rgba(34, 211, 238, 0.15);
  --color-border: #27272a;
  --color-link: #22d3ee;
  --color-link-hover: #67e8f9;

  /* Typography */
  --font-heading: 'Outfit', system-ui, sans-serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
  --text-base: 1rem;
  --text-sm: 0.9375rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: clamp(1.75rem, 4vw, 2.5rem);
  --text-hero: clamp(2.5rem, 6vw, 3.5rem);
  --line-height-tight: 1.25;
  --line-height-normal: 1.6;
  --line-height-relaxed: 1.75;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --section-padding: clamp(3rem, 8vw, 5rem);

  /* Layout */
  --container-max: 1100px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  /* Motion */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --duration-fast: 0.2s;
  --duration-normal: 0.35s;
  --duration-slow: 0.5s;
}

/* Base */
html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-text);
  font-weight: 600;
  line-height: var(--line-height-tight);
}

a {
  color: var(--color-link);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-in-out);
}

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

p, li {
  color: var(--color-text-muted);
}

.container {
  margin-left: auto;
  margin-right: auto;
  max-width: var(--container-max);
  padding-left: var(--space-xl);
  padding-right: var(--space-xl);
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  z-index: 100;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-accent);
  color: var(--color-bg);
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: top var(--duration-normal) var(--ease-out-expo);
}

.skip-link:focus {
  top: var(--space-md);
}

/* ---- Navigation ---- */
.main-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  padding-top: var(--space-lg);
  padding-bottom: var(--space-lg);
  background: rgba(15, 15, 18, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: background var(--duration-normal), border-color var(--duration-normal), box-shadow var(--duration-normal);
}

.main-nav.is-scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
}

.main-nav .logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--text-lg);
  letter-spacing: 0.05em;
  color: var(--color-text);
}

.main-nav nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-nav nav ul li a {
  color: var(--color-text-muted);
  font-weight: 500;
  font-size: var(--text-sm);
  letter-spacing: 0.02em;
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
}

.main-nav .nav-icon {
  font-size: 1em;
  color: var(--color-text-muted);
  transition: color var(--duration-fast), transform var(--duration-fast);
}

.main-nav nav ul li a:hover .nav-icon,
.main-nav nav ul li.active a .nav-icon {
  color: var(--color-accent);
}

.main-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}

.main-nav .top-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

/* ---- Intro / Hero ---- */
.intro {
  position: relative;
  padding-top: var(--section-padding);
  padding-bottom: var(--section-padding);
  overflow: hidden;
}

.intro-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, var(--color-accent-dim), transparent),
    radial-gradient(ellipse 60% 40% at 100% 50%, rgba(34, 211, 238, 0.06), transparent),
    radial-gradient(ellipse 40% 30% at 0% 80%, rgba(34, 211, 238, 0.05), transparent);
  pointer-events: none;
}

.intro .container.intro-container {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: var(--space-3xl);
  align-items: start;
}

.intro-greeting {
  font-size: var(--text-lg);
  color: var(--color-accent);
  font-weight: 500;
  margin-bottom: var(--space-lg);
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
}

.intro-icon {
  font-size: 1.25em;
  color: var(--color-accent);
}

.intro-left {
  min-width: 0;
}

.intro-content-row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: var(--space-xl);
  margin: var(--space-lg) 0;
}

.intro-avatar-wrap {
  flex-shrink: 0;
  margin-bottom: 0;
}

.intro-avatar {
  width: 120px;
  height: 120px;
  border-radius: var(--radius-lg);
  object-fit: cover;
  border: 2px solid var(--color-border);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.intro-heading {
  font-size: var(--text-hero);
  font-weight: 700;
  margin-bottom: var(--space-xl);
  letter-spacing: -0.02em;
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
}

.intro-heading .intro-title-icon {
  flex-shrink: 0;
  margin-top: 0.15em;
  font-size: 0.45em;
  color: var(--color-accent);
}

/* Keep typed line height stable so "Philippines" doesn't shift layout when it types/deletes */
.intro-heading-text {
  display: inline-block;
  min-height: 2.5em;
  line-height: 1.25;
  vertical-align: top;
}

#typed {
  display: inline;
}

.intro-heading .typed-text {
  color: var(--color-accent);
}

.typed-cursor {
  display: inline-block;
  color: var(--color-accent);
  font-weight: 300;
  animation: cursor-blink 0.8s step-end infinite;
}

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

.intro-bio {
  font-size: var(--text-lg);
  line-height: var(--line-height-relaxed);
  max-width: 56ch;
  margin-top: var(--space-xl);
}

/* Intro right column – highlights */
.intro-right {
  position: sticky;
  top: calc(var(--space-2xl) + 60px);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.intro-highlight {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-xs);
  padding: var(--space-lg) var(--space-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--duration-fast), box-shadow var(--duration-fast);
}

.intro-highlight:hover {
  border-color: var(--color-accent);
  box-shadow: 0 4px 20px var(--color-accent-dim);
}

.intro-highlight-icon {
  font-size: 1.25rem;
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
}

.intro-highlight-value {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--text-lg);
  color: var(--color-text);
}

.intro-highlight-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ---- Sections common ---- */
.section.second {
  margin-bottom: 0;
  padding-top: var(--section-padding);
  padding-bottom: var(--section-padding);
}

.section .container::after {
  display: none;
}

.section-title {
  font-size: var(--text-3xl);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: var(--space-2xl);
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.section-title .section-icon {
  display: inline-block;
  flex-shrink: 0;
  margin-bottom: 0;
  margin-right: 0;
  font-size: 0.55em;
  color: var(--color-accent);
  vertical-align: middle;
}

/* ---- Work Experience ---- */
.work-section-wrap {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: var(--space-2xl);
  align-items: start;
}

.work-left {
  min-width: 0;
}

.work-grid {
  display: grid;
  gap: var(--space-2xl);
}

.work-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.work-item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-sm);
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--color-border);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.work-item:last-child {
  border-bottom: none;
}

.work-date {
  flex: 0 0 auto;
  color: var(--color-text-muted);
  font-size: 0.875em;
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
}

.work-date-icon {
  font-size: 0.9em;
  color: var(--color-accent);
  opacity: 0.8;
}

.work-item a {
  flex: 1 1 auto;
  font-weight: 600;
  font-size: var(--text-base);
  color: var(--color-text);
}

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

.work-role {
  width: 100%;
  margin-top: var(--space-xs);
  font-size: 0.9em;
  color: var(--color-text-muted);
}

/* Work right sidebar – career summary */
.work-right {
  position: sticky;
  top: calc(var(--space-2xl) + 60px);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.work-summary-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-xs);
  padding: var(--space-lg) var(--space-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--duration-fast), box-shadow var(--duration-fast);
}

.work-summary-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 4px 20px var(--color-accent-dim);
}

.work-summary-icon {
  font-size: 1.25rem;
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
}

.work-summary-value {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--text-lg);
  color: var(--color-text);
}

.work-summary-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ---- Portfolio / Award lists ---- */
.award-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.award-list li {
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border);
  font-size: var(--text-sm);
  line-height: var(--line-height-relaxed);
}

.award-list li:last-child {
  border-bottom: none;
}

.award-list a {
  color: var(--color-text-muted);
}

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

.award-list strong {
  color: var(--color-text);
  font-weight: 600;
}

/* ---- Skills ---- */
.skill-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.skill-item {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg) var(--space-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--duration-fast), box-shadow var(--duration-fast);
}

.skill-item:hover {
  border-color: var(--color-border);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
}

.skill-category {
  flex: 0 0 180px;
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
}

.skill-icon {
  font-size: 1.1em;
  color: var(--color-accent);
  opacity: 0.9;
}

.skill-tags {
  flex: 1 1 auto;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ---- Footer ---- */
.site-footer {
  padding: var(--space-2xl) 0;
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-2xl);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
}

.footer-credit {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.site-footer .social {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: var(--space-lg);
}

.site-footer .social li {
  display: inline-block;
}

.site-footer .social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  transition: color var(--duration-fast), background var(--duration-fast), border-color var(--duration-fast), transform var(--duration-fast);
}

.site-footer .social a:hover {
  color: var(--color-accent);
  background: var(--color-accent-dim);
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

/* ---- Scroll-triggered animations ---- */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s var(--ease-out-expo), transform 0.6s var(--ease-out-expo);
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children when parent gets .is-visible */
.work-list.animate-on-scroll .work-item,
.award-list.animate-on-scroll li,
.skill-list.animate-on-scroll .skill-item {
  opacity: 0;
}

.work-list.animate-on-scroll.is-visible .work-item,
.award-list.animate-on-scroll.is-visible li,
.skill-list.animate-on-scroll.is-visible .skill-item {
  animation: fadeInUp 0.5s var(--ease-out-expo) forwards;
}

.work-list .work-item:nth-child(1), .skill-list .skill-item:nth-child(1) { animation-delay: 0.05s; }
.work-list .work-item:nth-child(2), .award-list li:nth-child(2), .skill-list .skill-item:nth-child(2) { animation-delay: 0.1s; }
.work-list .work-item:nth-child(3), .award-list li:nth-child(3), .skill-list .skill-item:nth-child(3) { animation-delay: 0.15s; }
.work-list .work-item:nth-child(4), .award-list li:nth-child(4), .skill-list .skill-item:nth-child(4) { animation-delay: 0.2s; }
.work-list .work-item:nth-child(5), .award-list li:nth-child(5), .skill-list .skill-item:nth-child(5) { animation-delay: 0.25s; }
.award-list li:nth-child(6) { animation-delay: 0.3s; }
.award-list li:nth-child(7) { animation-delay: 0.35s; }
.award-list li:nth-child(8) { animation-delay: 0.4s; }
.award-list li:nth-child(9) { animation-delay: 0.45s; }
.award-list li:nth-child(10) { animation-delay: 0.5s; }
.award-list li:nth-child(n+11) { animation-delay: 0.55s; }
.skill-list .skill-item:nth-child(6) { animation-delay: 0.3s; }
.skill-list .skill-item:nth-child(7) { animation-delay: 0.35s; }

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive */
@media (max-width: 1024px) {
  .intro .container.intro-container {
    grid-template-columns: 1fr;
  }

  .intro-right {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: flex-start;
  }

  .intro-highlight {
    flex: 1 1 160px;
    min-width: 140px;
  }

  .work-section-wrap {
    grid-template-columns: 1fr;
  }

  .work-right {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: flex-start;
  }

  .work-summary-card {
    flex: 1 1 140px;
    min-width: 120px;
  }
}

@media (max-width: 767px) {
  /* Mobile nav: stack toggle and menu, full-width touch-friendly menu */
  .main-nav .top-nav {
    flex-wrap: wrap;
    width: 100%;
  }

  .main-nav .navigation-toggle {
    background: var(--color-surface);
    color: var(--color-text);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-bottom: 0;
  }

  .main-nav .navigation-toggle:after {
    color: var(--color-text);
  }

  .main-nav .navigation-toggle span {
    padding: 12px 16px 12px 44px;
  }

  .main-nav .navigation-toggle.navigation-toggle-show {
    margin-bottom: var(--space-md);
  }

  /* Menu dropdown: full width below toggle, vertical list (JS sets display: block when open) */
  .main-nav nav ul,
  .main-nav #navbar-1 {
    width: 100%;
    margin-top: 0;
    margin-left: 0;
    margin-right: 0;
    padding: var(--space-sm) 0;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  }

  .main-nav nav ul li {
    float: none;
    width: 100%;
    margin: 0;
    display: block;
    border-bottom: 1px solid var(--color-border);
  }

  .main-nav nav ul li:last-child {
    border-bottom: none;
  }

  .main-nav nav ul li a {
    width: 100%;
    padding: 14px var(--space-xl);
    min-height: 48px;
    justify-content: flex-start;
    box-sizing: border-box;
  }

  .intro-avatar {
    display: block;
    margin-left: auto;
    margin-right: auto;
  }

  .intro-content-row {
    justify-content: center;
    text-align: center;
  }

  .intro-heading {
    flex-direction: column;
    align-items: center;
  }

  .intro-bio {
    text-align: center;
  }

  .site-footer {
    text-align: center;
  }

  .footer-inner {
    flex-direction: column;
    justify-content: center;
  }

  .site-footer .social.right {
    justify-content: center;
  }

  .skill-category {
    flex: 1 1 100%;
  }
}

@media (max-width: 480px) {
  .container {
    padding-left: var(--space-md);
    padding-right: var(--space-md);
  }

  .section-title {
    font-size: var(--text-2xl);
  }
}