/* ============================================
   Dare Badejo Portfolio
   Senior-Level Design System v2
   ============================================ */

/* --- Design Tokens --- */
:root {
  --color-hero-start: #0f0c29;
  --color-hero-mid: #302b63;
  --color-hero-end: #24243e;
  --color-accent: #ff6d00;
  --color-accent-light: #ff9100;
  --color-accent-glow: rgba(255, 109, 0, 0.2);
  --card-radius: 16px;
  --card-shadow: 0 1px 3px rgba(0,0,0,0.06), 0 4px 16px rgba(0,0,0,0.06);
  --card-shadow-hover: 0 8px 40px rgba(0,0,0,0.12);
  --transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --section-gap: 4rem;
  --page-max: 960px;
}

/* --- Page-Level Polish --- */
.md-content__inner {
  max-width: var(--page-max);
  margin: 0 auto;
  padding-top: 1rem;
}

/* --- Typography --- */
.md-typeset {
  font-size: 0.95rem;
  line-height: 1.75;
}
.md-typeset h1 {
  font-weight: 900;
  font-size: 2.4rem;
  letter-spacing: -0.03em;
  margin-bottom: 0.4rem;
  line-height: 1.15;
}
.md-typeset h2 {
  font-weight: 750;
  font-size: 1.55rem;
  letter-spacing: -0.015em;
  margin-top: var(--section-gap);
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--md-default-fg-color--lightest);
}
.md-typeset h3 {
  font-weight: 650;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
}
.md-typeset strong {
  font-weight: 700;
}

/* --- Hero Section (Home) --- */
.hero-section {
  text-align: center;
  padding: 5.5rem 2rem 4rem;
  background: linear-gradient(160deg, var(--color-hero-start), var(--color-hero-mid) 50%, var(--color-hero-end));
  border-radius: 0 0 40px 40px;
  margin: -1.5rem -1.5rem var(--section-gap);
  position: relative;
  overflow: hidden;
}
.hero-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 20%, rgba(255,109,0,0.08) 0%, transparent 60%),
              radial-gradient(ellipse at 70% 80%, rgba(63,81,181,0.1) 0%, transparent 50%);
  pointer-events: none;
}
[data-md-color-scheme="slate"] .hero-section {
  background: linear-gradient(160deg, #0a0a0a, #111827 50%, #0f172a);
}
.hero-section h1 {
  font-size: 3.2rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  color: #fff !important;
  margin-bottom: 0.15rem;
  position: relative;
}
.hero-section h3 {
  font-weight: 400;
  font-size: 1.1rem;
  color: rgba(255,255,255,0.7) !important;
  margin-bottom: 1.5rem;
  letter-spacing: 0.01em;
  position: relative;
}
.hero-section p {
  color: rgba(255,255,255,0.88) !important;
  max-width: 640px;
  margin: 0 auto 2rem;
  font-size: 1rem;
  line-height: 1.8;
  position: relative;
}
.hero-section strong {
  color: #fff !important;
}
.hero-section .md-button {
  margin: 0.3rem 0.2rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.82rem;
  padding: 0.6em 1.5em;
  transition: var(--transition);
  position: relative;
  text-transform: none;
  letter-spacing: 0;
}
.hero-section .md-button--primary {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  border: none;
  color: #fff !important;
  box-shadow: 0 4px 20px var(--color-accent-glow);
}
.hero-section .md-button--primary:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 8px 32px rgba(255,109,0,0.35);
}
.hero-section .md-button:not(.md-button--primary) {
  border: 1px solid rgba(255,255,255,0.25);
  color: rgba(255,255,255,0.9) !important;
  background: rgba(255,255,255,0.04);
  backdrop-filter: blur(4px);
}
.hero-section .md-button:not(.md-button--primary):hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.5);
  transform: translateY(-2px);
}

/* --- Card Grid System --- */
.home-grid,
.impact-grid,
.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  margin: var(--section-gap) 0;
}
.home-card,
.impact-card,
.contact-card {
  background: var(--md-default-bg-color);
  border: 1px solid var(--md-default-fg-color--lightest);
  border-radius: var(--card-radius);
  padding: 2rem 1.5rem 1.75rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
/* Accent top-bar */
.home-card::after,
.impact-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.home-card:hover,
.impact-card:hover,
.contact-card:hover {
  box-shadow: var(--card-shadow-hover);
  transform: translateY(-6px);
  border-color: transparent;
}
.home-card:hover::after,
.impact-card:hover::after {
  transform: scaleX(1);
}
.home-card h3,
.impact-card h3,
.contact-card h3 {
  margin-top: 0;
  margin-bottom: 0.6rem;
  font-size: 1.05rem;
  border-bottom: none;
  padding-bottom: 0;
}
.home-card p,
.impact-card p {
  font-size: 0.88rem;
  color: var(--md-default-fg-color--light);
  line-height: 1.7;
  margin-bottom: 0;
}
.impact-card ul {
  font-size: 0.85rem;
  padding-left: 1.1rem;
  margin-top: 0.75rem;
  margin-bottom: 0;
  color: var(--md-default-fg-color--light);
}
.impact-card ul li {
  margin-bottom: 0.25rem;
}

/* --- Contact Grid --- */
.contact-grid {
  grid-template-columns: repeat(3, 1fr);
}
.contact-card {
  text-align: center;
  padding: 2.25rem 1.25rem;
}
.contact-card h3 {
  margin-bottom: 0.4rem;
}
.contact-card p {
  font-size: 0.88rem;
  color: var(--md-default-fg-color--light);
  margin-bottom: 1rem;
}
.contact-card .md-button {
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.82rem;
}

/* --- Work Page: Case Study Sections --- */
.md-typeset .admonition.info,
.md-typeset details.info {
  border-left: 4px solid var(--color-accent);
  border-radius: 12px;
  background: rgba(255, 109, 0, 0.03);
}
[data-md-color-scheme="slate"] .md-typeset .admonition.info,
[data-md-color-scheme="slate"] .md-typeset details.info {
  background: rgba(255, 109, 0, 0.05);
}

/* --- Tables --- */
.md-typeset table:not([class]) {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--card-shadow);
  font-size: 0.88rem;
  border: 1px solid var(--md-default-fg-color--lightest);
  width: 100%;
}
.md-typeset table:not([class]) thead {
  background: var(--md-primary-fg-color);
  color: #fff;
}
.md-typeset table:not([class]) th {
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  padding: 0.9em 1.1em;
  color: #fff;
}
.md-typeset table:not([class]) td {
  padding: 0.8em 1.1em;
  vertical-align: top;
}
.md-typeset table:not([class]) tbody tr {
  transition: background 0.2s ease;
}
.md-typeset table:not([class]) tbody tr:hover {
  background: var(--md-default-fg-color--lightest);
}

/* --- Admonitions --- */
.md-typeset .admonition,
.md-typeset details {
  border-radius: 12px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
  font-size: 0.9rem;
  border-width: 0 0 0 4px;
}

/* --- Quote block (Impact Philosophy) --- */
.md-typeset .admonition.quote {
  background: linear-gradient(135deg, rgba(63,81,181,0.04), rgba(255,109,0,0.04));
  border-left: 4px solid var(--color-accent);
  border-radius: 12px;
  padding: 1.5rem;
}
.md-typeset .admonition.quote p {
  font-size: 1.05rem;
  line-height: 1.75;
  font-style: italic;
}

/* --- Buttons (global) --- */
.md-typeset .md-button {
  border-radius: 10px;
  font-weight: 600;
  transition: var(--transition);
  font-size: 0.85rem;
  text-transform: none;
  letter-spacing: 0;
}
.md-typeset .md-button--primary {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  border: none;
  color: #fff !important;
}
.md-typeset .md-button--primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 28px var(--color-accent-glow);
}
.md-typeset .md-button:not(.md-button--primary) {
  border: 1.5px solid var(--md-primary-fg-color);
}
.md-typeset .md-button:not(.md-button--primary):hover {
  background: var(--md-primary-fg-color);
  color: #fff !important;
  transform: translateY(-2px);
}

/* --- Horizontal Rule --- */
.md-typeset hr {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent 5%, var(--md-default-fg-color--lightest) 50%, transparent 95%);
  margin: var(--section-gap) 0;
}

/* --- Scroll Animation --- */
.home-card,
.impact-card,
.contact-card {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              box-shadow 0.35s ease;
}
.home-card.visible,
.impact-card.visible,
.contact-card.visible {
  opacity: 1;
  transform: translateY(0);
}
.home-grid > :nth-child(1), .impact-grid > :nth-child(1), .contact-grid > :nth-child(1) { transition-delay: 0.06s; }
.home-grid > :nth-child(2), .impact-grid > :nth-child(2), .contact-grid > :nth-child(2) { transition-delay: 0.14s; }
.home-grid > :nth-child(3), .impact-grid > :nth-child(3), .contact-grid > :nth-child(3) { transition-delay: 0.22s; }
.home-grid > :nth-child(4), .impact-grid > :nth-child(4), .contact-grid > :nth-child(4) { transition-delay: 0.30s; }

/* --- Section fade-in for non-card elements --- */
.md-typeset .admonition,
.md-typeset details,
.md-typeset table:not([class]) {
  animation: fadeUp 0.5s ease both;
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --- Navigation polish --- */
.md-tabs {
  border-bottom: 1px solid var(--md-default-fg-color--lightest);
}
.md-tabs__link--active {
  font-weight: 700;
}

/* --- Footer --- */
.md-footer {
  margin-top: var(--section-gap);
}
.md-footer-meta {
  font-size: 0.8rem;
}

/* --- Hero Content Layout (image + text side by side) --- */
.hero-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 3rem;
  max-width: 900px;
  margin: 0 auto;
  position: relative;
}
.hero-text {
  flex: 1;
  text-align: left;
}
.hero-image {
  flex: 0 0 auto;
}
.profile-img {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  transition: var(--transition);
}
.profile-img:hover {
  border-color: var(--color-accent);
  transform: scale(1.05);
  box-shadow: 0 12px 40px rgba(255, 109, 0, 0.25);
}

/* --- Page Banner Images --- */
.page-banner {
  width: 100%;
  max-height: 220px;
  object-fit: cover;
  border-radius: var(--card-radius);
  margin-bottom: 1.5rem;
  box-shadow: var(--card-shadow);
}

/* --- Project Images (Work page) --- */
.project-img {
  width: 100%;
  max-height: 280px;
  object-fit: cover;
  border-radius: 12px;
  margin: 1rem 0 1.5rem;
  box-shadow: var(--card-shadow);
  transition: var(--transition);
}
.project-img:hover {
  box-shadow: var(--card-shadow-hover);
  transform: scale(1.01);
}

/* --- Research Images --- */
.research-img {
  width: 100%;
  max-height: 260px;
  object-fit: cover;
  border-radius: 12px;
  margin: 1rem 0 1.5rem;
  box-shadow: var(--card-shadow);
}

/* --- Insight Images --- */
.insight-img {
  width: 100%;
  max-height: 240px;
  object-fit: cover;
  border-radius: 12px;
  margin: 0.5rem 0 1rem;
  box-shadow: var(--card-shadow);
  transition: var(--transition);
}
.insight-img:hover {
  box-shadow: var(--card-shadow-hover);
}

/* --- Responsive --- */
@media (max-width: 960px) {
  .home-grid,
  .impact-grid {
    grid-template-columns: 1fr;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .hero-content {
    flex-direction: column-reverse;
    gap: 1.5rem;
  }
  .hero-text {
    text-align: center;
  }
  .profile-img {
    width: 160px;
    height: 160px;
  }
}
@media (max-width: 768px) {
  .hero-section {
    padding: 3.5rem 1.25rem 2.5rem;
    margin: -1rem -1rem var(--section-gap);
    border-radius: 0 0 24px 24px;
  }
  .hero-section h1 { font-size: 2.2rem; }
  .hero-section h3 { font-size: 0.95rem; }
  .hero-section p { font-size: 0.92rem; }
  .md-typeset h1 { font-size: 1.8rem; }
  .md-typeset h2 { font-size: 1.3rem; }
}

/* --- Print --- */
@media print {
  .hero-section { background: #333 !important; }
  .home-card, .impact-card, .contact-card { opacity: 1 !important; transform: none !important; }
}

/* --- Sticky Table of Contents Sidebar --- */
@media (min-width: 960px) {
  .md-sidebar--secondary {
    position: sticky;
    top: 4rem;
    max-height: calc(100vh - 5rem);
    overflow-y: auto;
  }
  .md-sidebar--secondary .md-sidebar__scrollwrap {
    position: sticky;
    top: 0;
  }
  .md-nav--secondary .md-nav__title {
    font-weight: 700;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--md-default-fg-color--light);
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--md-default-fg-color--lightest);
    margin-bottom: 0.5rem;
  }
  .md-nav--secondary .md-nav__link {
    font-size: 0.82rem;
    transition: color 0.2s ease, border-left-color 0.2s ease;
    border-left: 2px solid transparent;
    padding-left: 0.75rem;
  }
  .md-nav--secondary .md-nav__link--active,
  .md-nav--secondary .md-nav__link:hover {
    color: var(--color-accent);
    border-left-color: var(--color-accent);
  }
}