/* ============================================
   ILP Portfolio — Mikey Voss
   Clean, modern design with warm accents
   ============================================ */

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

:root {
  /* Warm neutral palette */
  --color-bg: #FAFAF8;
  --color-surface: #FFFFFF;
  --color-text: #2C2C2C;
  --color-text-secondary: #636363;
  --color-text-light: #8A8A8A;
  --color-border: #E8E5E0;
  --color-border-light: #F0EDEA;

  /* Warm accent */
  --color-accent: #C8A951;
  --color-accent-hover: #B8982E;
  --color-accent-light: rgba(200, 169, 81, 0.08);
  --color-accent-subtle: rgba(200, 169, 81, 0.15);

  /* Typography */
  --font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-size-base: 16px;
  --line-height-base: 1.7;
  --line-height-heading: 1.2;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2.5rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;

  /* Layout */
  --container-max: 1100px;
  --container-narrow: 800px;
  --nav-height: 64px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
}

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: var(--line-height-base);
}

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

a {
  color: var(--color-accent-hover);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

ul, ol {
  list-style: none;
}

/* --- Typography --- */
h1, h2, h3, h4 {
  line-height: var(--line-height-heading);
  font-weight: 600;
  color: var(--color-text);
}

h1 {
  font-size: 2.5rem;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 1.75rem;
  letter-spacing: -0.015em;
}

h3 {
  font-size: 1.25rem;
  letter-spacing: -0.01em;
}

h4 {
  font-size: 1.05rem;
}

p {
  margin-bottom: var(--space-md);
  color: var(--color-text-secondary);
}

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

/* --- Layout --- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.container--narrow {
  max-width: var(--container-narrow);
}

.section {
  padding: var(--space-3xl) 0;
}

.section--alt {
  background-color: var(--color-surface);
}

.section__label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.section__title {
  margin-bottom: var(--space-lg);
}

.section__text {
  max-width: 650px;
}

/* --- Navigation --- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  height: var(--nav-height);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  text-decoration: none;
  color: var(--color-text);
}

.nav__logo img {
  height: 36px;
  width: auto;
}

.nav__logo-divider {
  width: 1px;
  height: 24px;
  background-color: var(--color-border);
}

.nav__logo-text {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-secondary);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav__link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  text-decoration: none;
  padding: var(--space-xs) 0;
  border-bottom: 2px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.nav__link:hover,
.nav__link--active {
  color: var(--color-text);
  border-bottom-color: var(--color-accent);
}

/* Dropdown */
.nav__dropdown {
  position: relative;
}

.nav__dropdown-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  cursor: pointer;
  background: none;
  border: none;
  font-family: var(--font-family);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  padding: var(--space-xs) 0;
  border-bottom: 2px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.nav__dropdown-toggle:hover {
  color: var(--color-text);
  border-bottom-color: var(--color-accent);
}

.nav__dropdown-arrow {
  font-size: 0.6rem;
  transition: transform var(--transition-fast);
}

.nav__dropdown.is-open .nav__dropdown-arrow {
  transform: rotate(180deg);
}

.nav__dropdown-menu {
  position: absolute;
  top: calc(100% + var(--space-sm));
  right: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: var(--space-sm) 0;
  min-width: 300px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity var(--transition-base), visibility var(--transition-base), transform var(--transition-base);
}

.nav__dropdown.is-open .nav__dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav__dropdown-item {
  display: block;
  padding: var(--space-sm) var(--space-lg);
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.nav__dropdown-item:hover {
  background-color: var(--color-accent-light);
  color: var(--color-text);
}

.nav__dropdown-item span {
  color: var(--color-text-light);
  margin-right: var(--space-sm);
  font-weight: 500;
  font-size: 0.8rem;
}

/* Mobile nav */
.nav__toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
  color: var(--color-text);
}

.nav__toggle-icon {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--color-text);
  position: relative;
  transition: background-color var(--transition-fast);
}

.nav__toggle-icon::before,
.nav__toggle-icon::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 2px;
  background-color: var(--color-text);
  left: 0;
  transition: transform var(--transition-base);
}

.nav__toggle-icon::before { top: -6px; }
.nav__toggle-icon::after { top: 6px; }

.nav__toggle.is-open .nav__toggle-icon {
  background-color: transparent;
}

.nav__toggle.is-open .nav__toggle-icon::before {
  transform: rotate(45deg) translate(4px, 4px);
}

.nav__toggle.is-open .nav__toggle-icon::after {
  transform: rotate(-45deg) translate(4px, -4px);
}

/* --- Hero --- */
.hero {
  padding: var(--space-3xl) 0;
  border-bottom: 1px solid var(--color-border-light);
}

.hero__content {
  max-width: 700px;
}

.hero__photo {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid var(--color-border);
  margin-bottom: var(--space-xl);
}

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

.hero__name {
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-sm);
}

.hero__subtitle {
  font-size: 1.1rem;
  color: var(--color-text-light);
  margin-bottom: var(--space-sm);
  font-weight: 400;
}

.hero__links {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}

.hero__bio {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--color-text-secondary);
}

.hero__link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-accent-hover);
}

.hero__link:hover {
  color: var(--color-accent);
}

.hero__links-divider {
  color: var(--color-text-light);
  font-size: 0.8rem;
}

/* --- Goals List --- */
.goals-list {
  display: grid;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.goals-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.goals-list li::before {
  content: '';
  flex-shrink: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent);
  margin-top: 0.55rem;
}

/* --- Program Outcomes List --- */
.outcomes-list {
  display: grid;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.outcomes-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  color: var(--color-text-secondary);
  line-height: 1.6;
  padding: var(--space-sm) 0;
}

.outcomes-list li::before {
  content: '';
  flex-shrink: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent);
  margin-top: 0.55rem;
}

/* --- Course Grid --- */
.course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.course-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: var(--space-xl);
  text-decoration: none;
  transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
}

.course-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 4px 16px rgba(200, 169, 81, 0.1);
  transform: translateY(-2px);
}

.course-card__number {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.course-card__title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
  line-height: 1.4;
}

.course-card__desc {
  font-size: 0.85rem;
  color: var(--color-text-light);
  line-height: 1.5;
}

/* --- Course Page --- */
.course-header {
  padding: var(--space-2xl) 0 var(--space-xl);
  border-bottom: 1px solid var(--color-border-light);
}

.course-header__back {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.85rem;
  color: var(--color-text-light);
  text-decoration: none;
  margin-bottom: var(--space-xl);
  transition: color var(--transition-fast);
}

.course-header__back:hover {
  color: var(--color-accent);
}

.course-header__number {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.course-header__title {
  font-size: 2.25rem;
  max-width: 600px;
}

.course-body {
  padding: var(--space-2xl) 0 var(--space-3xl);
}

.course-body .container--narrow > * + * {
  margin-top: var(--space-2xl);
}

.course-section__title {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-accent-subtle);
  display: inline-block;
}

.course-section__subtitle {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
}

.course-section__subtitle:first-of-type {
  margin-top: var(--space-md);
}

.course-section__placeholder {
  background-color: var(--color-accent-light);
  border: 1px dashed var(--color-border);
  border-radius: 8px;
  padding: var(--space-xl);
  text-align: center;
  color: var(--color-text-light);
  font-size: 0.9rem;
  font-style: italic;
}

/* --- Footer --- */
.footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-xl) 0;
  text-align: center;
}

.footer__text {
  font-size: 0.8rem;
  color: var(--color-text-light);
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 0;
}

.footer__text a {
  color: var(--color-text-secondary);
}

.footer__divider {
  margin: 0 0.5em;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  :root {
    --space-3xl: 3.5rem;
    --space-2xl: 2.5rem;
  }

  h1, .hero__name {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.4rem;
  }

  .course-header__title {
    font-size: 1.75rem;
  }

  /* Mobile nav */
  .nav__toggle {
    display: block;
  }

  .nav__links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--color-surface);
    padding: var(--space-lg);
    transform: translateX(100%);
    transition: transform var(--transition-base);
    overflow-y: auto;
  }

  .nav__links.is-open {
    transform: translateX(0);
  }

  .nav__link {
    font-size: 1.1rem;
    padding: var(--space-md) 0;
    width: 100%;
    border-bottom: 1px solid var(--color-border-light);
  }

  .nav__link:last-child {
    border-bottom: none;
  }

  .nav__dropdown {
    width: 100%;
  }

  .nav__dropdown-toggle {
    font-size: 1.1rem;
    padding: var(--space-md) 0;
    width: 100%;
    justify-content: space-between;
    border-bottom: 1px solid var(--color-border-light);
  }

  .nav__dropdown-menu {
    position: static;
    box-shadow: none;
    border: none;
    border-radius: 0;
    padding: 0 0 0 var(--space-md);
    opacity: 1;
    visibility: visible;
    transform: none;
    display: none;
  }

  .nav__dropdown.is-open .nav__dropdown-menu {
    display: block;
  }

  .nav__dropdown-item {
    padding: var(--space-sm) var(--space-md);
  }

  .hero__photo {
    width: 120px;
    height: 120px;
  }

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

@media (max-width: 480px) {
  .hero__name {
    font-size: 1.75rem;
  }

  .container {
    padding: 0 var(--space-md);
  }

  .footer__text {
    flex-direction: column;
    gap: var(--space-xs);
  }

  .footer__divider {
    display: none;
  }
}