/* =========================================================
   Abubakar Oyerogba — Portfolio
   Redesign: dark studio theme, browser-tab project cards,
   scrolling skills marquee.
   ========================================================= */

:root {
  --bg: #0e1116;
  --panel: #1c2128;
  --panel-alt: #161a20;
  --paper: #f5f1e8;
  --muted: #8b95a1;
  --accent: #3ddc97;
  --accent-soft: rgba(61, 220, 151, 0.15);
  --accent-contrast: #0e1116;
  --mint: #3ddc97;
  --border: #2a313c;

  --font-display: "Space Grotesk", sans-serif;
  --font-body: "Inter", sans-serif;
  --font-mono: "JetBrains Mono", monospace;

  --max-width: 1140px;

  color-scheme: dark;
}

/* ---------- Light mode ---------- */
:root[data-theme="light"] {
  --bg: #f5f1e8;
  --panel: #ffffff;
  --panel-alt: #ece7dc;
  --paper: #14110d;
  --muted: #6b6258;
  --accent: #1fae74;
  --accent-soft: rgba(31, 174, 116, 0.12);
  --accent-contrast: #ffffff;
  --mint: #1fae74;
  --border: #ddd5c7;

  color-scheme: light;
}

body {
  transition: background-color 0.3s ease, color 0.3s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  background: var(--bg);
  color: var(--paper);
  font-family: var(--font-body);
  line-height: 1.6;
  font-size: 16px;
}

a {
  color: inherit;
  text-decoration: none;
}

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

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.eyebrow::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.01em;
}

section {
  padding: 96px 0;
  border-bottom: 1px solid var(--border);
}

/* ---------- Header / Nav ---------- */

header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(14, 17, 22, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
}

.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
}

.logo span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-links a {
  position: relative;
  padding-bottom: 4px;
  color: var(--muted);
  transition: color 0.2s ease;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--paper);
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.25s ease;
}

.nav-links a:hover::after,
.nav-links a:focus-visible::after {
  width: 100%;
}

.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--paper);
  font-size: 1.25rem;
  padding: 6px 10px;
  cursor: pointer;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--paper);
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
  font-size: 1.05rem;
  line-height: 1;
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
}

.theme-toggle:active {
  transform: scale(0.92);
}

.theme-toggle .icon-moon { display: inline; }
.theme-toggle .icon-sun { display: none; }

:root[data-theme="light"] .theme-toggle .icon-moon { display: none; }
:root[data-theme="light"] .theme-toggle .icon-sun { display: inline; }

/* ---------- Hero ---------- */

.hero {
  padding-top: 110px;
  padding-bottom: 96px;
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -200px;
  right: -150px;
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, var(--accent-soft) 0%, transparent 70%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 64px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: clamp(2.6rem, 6vw, 4.5rem);
  line-height: 1.05;
  margin: 18px 0 24px;
}

.hero h1 .accent {
  color: var(--accent);
}

.hero p.lead {
  font-size: 1.1rem;
  color: var(--muted);
  max-width: 46ch;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 14px 26px;
  border-radius: 6px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.2s ease, border-color 0.2s ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--accent);
  color: var(--accent-contrast);
}

.btn-primary:hover {
  filter: brightness(1.12);
}

.btn-ghost {
  border-color: var(--border);
  color: var(--paper);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* Portrait card */
.hero-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 30px 60px -30px rgba(0, 0, 0, 0.7);
}

.hero-card .tabbar {
  display: flex;
  gap: 8px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}

.tabbar span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--border);
}

.tabbar span:nth-child(1) { background: #ff5f57; }
.tabbar span:nth-child(2) { background: #ffbd2e; }
.tabbar span:nth-child(3) { background: #28c840; }

.hero-card img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.hero-card figcaption {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted);
  padding: 14px 16px;
  border-top: 1px solid var(--border);
}

/* ---------- Marquee (signature element) ---------- */

.marquee {
  border-bottom: 1px solid var(--border);
  background: var(--panel-alt);
  overflow: hidden;
  padding: 18px 0;
}

.marquee-track {
  display: flex;
  gap: 48px;
  white-space: nowrap;
  width: max-content;
  animation: scroll-left 32s linear infinite;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.marquee-track span.dot {
  color: var(--accent);
}

@keyframes scroll-left {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ---------- About ---------- */

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  margin-top: 40px;
}

.about-grid h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin-bottom: 20px;
}

.about-grid p {
  color: var(--muted);
  margin-bottom: 16px;
}

.about-grid strong {
  color: var(--paper);
}

.clients-list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--muted);
}

.clients-list li::before {
  content: "▸ ";
  color: var(--accent);
}

/* Skills bars */
.skills-block {
  margin-top: 32px;
}

.skill-row {
  margin-bottom: 18px;
}

.skill-row .skill-label {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  margin-bottom: 6px;
  color: var(--paper);
}

.skill-row .skill-label .pct {
  color: var(--mint);
}

.skill-track {
  height: 6px;
  border-radius: 4px;
  background: var(--panel);
  border: 1px solid var(--border);
  overflow: hidden;
}

.skill-fill {
  height: 100%;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--accent), var(--mint));
}

/* ---------- Capabilities (Abilities & Skills) ---------- */

.capabilities-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.cap-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 22px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

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

.cap-card h3 {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-family: var(--font-mono);
  color: var(--accent);
  margin-bottom: 16px;
}

.cap-card ul {
  list-style: none;
  color: var(--muted);
  font-size: 0.92rem;
}

.cap-card li {
  padding: 6px 0;
  border-top: 1px solid var(--border);
}

.cap-card li:first-child {
  border-top: none;
}

/* ---------- Section heading pattern ---------- */

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 16px;
}

.section-head h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin-top: 12px;
}

/* ---------- Portfolio ---------- */

.filter-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.filter-bar button {
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 8px 16px;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.filter-bar button.active,
.filter-bar button:hover {
  color: var(--bg);
  background: var(--accent);
  border-color: var(--accent);
}

.work-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.work-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.work-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent);
}

.work-card .tabbar {
  display: flex;
  gap: 6px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  align-items: center;
}

.work-card .tabbar span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--border);
}

.work-card .tabbar span:nth-child(1) { background: #ff5f57; }
.work-card .tabbar span:nth-child(2) { background: #ffbd2e; }
.work-card .tabbar span:nth-child(3) { background: #28c840; }

.work-card .tabbar .tab-url {
  margin-left: 12px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.work-card img {
  width: 100%;
  height: 190px;
  object-fit: cover;
  display: block;
}

.work-card-body {
  padding: 18px;
}

.work-card-body h3 {
  font-size: 1.05rem;
  margin-bottom: 4px;
}

.work-card-body p {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ---------- Testimonials ---------- */

.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.testimonial-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  position: relative;
}

.testimonial-card::before {
  content: "“";
  font-family: var(--font-display);
  font-size: 3rem;
  color: var(--accent);
  line-height: 1;
  display: block;
  margin-bottom: 8px;
}

.testimonial-card p.quote {
  color: var(--muted);
  margin-bottom: 18px;
}

.testimonial-card .who {
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

.testimonial-card .who strong {
  color: var(--paper);
  display: block;
}

.testimonial-card .who span {
  color: var(--accent);
}

/* ---------- CTA / Contact ---------- */

.cta {
  text-align: center;
  padding: 110px 0;
  border-bottom: 1px solid var(--border);
  position: relative;
}

.cta h2 {
  font-size: clamp(2.2rem, 6vw, 3.6rem);
  max-width: 16ch;
  margin: 0 auto 32px;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.contact-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
}

.contact-card h3 {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 12px;
}

.contact-card p,
.contact-card a {
  color: var(--paper);
  font-size: 0.95rem;
}

.social-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.social-row a {
  border: 1px solid var(--border);
  border-radius: 50%;
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  transition: all 0.2s ease;
}

.social-row a:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ---------- Footer ---------- */

footer {
  padding: 40px 0;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted);
}

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

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
  .hero-grid,
  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-card {
    order: -1;
    max-width: 360px;
  }

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

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

  .testimonial-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  section {
    padding: 64px 0;
  }

  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    gap: 0;
    padding: 8px 24px 16px;
    display: none;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links li {
    padding: 12px 0;
    border-top: 1px solid var(--border);
  }

  .menu-toggle {
    display: block;
  }

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

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

  .clients-list {
    grid-template-columns: 1fr;
  }
}

/* ---------- Lightbox ---------- */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.82);
  padding: 32px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease;
}

:root[data-theme="light"] .lightbox {
  background: rgba(20, 17, 13, 0.7);
}

.lightbox.open {
  opacity: 1;
  visibility: visible;
}

.lightbox-content {
  position: relative;
  max-width: min(90vw, 1000px);
  max-height: 85vh;
  transform: scale(0.96);
  transition: transform 0.25s ease;
}

.lightbox.open .lightbox-content {
  transform: scale(1);
}

.lightbox-content img {
  max-width: 100%;
  max-height: 85vh;
  width: auto;
  border-radius: 10px;
  border: 1px solid var(--border);
  box-shadow: 0 30px 80px -30px rgba(0, 0, 0, 0.8);
}

.lightbox-caption {
  margin-top: 14px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--paper);
}

.lightbox-close {
  position: absolute;
  top: -18px;
  right: -18px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--paper);
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.lightbox-close:hover,
.lightbox-close:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
}

@media (max-width: 640px) {
  .lightbox-close {
    top: -42px;
    right: 0;
  }
}