/* ========================================
   Daniel Olaifa — Portfolio Styles
   ======================================== */

/* ----- Variables ----- */
:root {
  --bg: #111;
  --bg-card: #191919;
  --bg-elevated: #1f1f1f;
  --text: #f0f0f0;
  --text-muted: #888;
  --accent: #fff;
  --accent-light: rgba(255, 255, 255, 0.06);
  --accent-glow: rgba(255, 255, 255, 0.1);
  --border: #2a2a2a;
  --tag-bg: #1e1e1e;
  --tag-text: #aaa;
  --serif: 'Playfair Display', serif;
  --sans: 'Inter', sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* ----- Layout ----- */
.c {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}

.c-narrow {
  max-width: 900px;
}

section {
  padding: 5rem 0;
}

.c-narrow section {
  padding: 3rem 0;
}

/* ----- Navigation ----- */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(17, 17, 17, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.ni {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 60px;
}

.logo {
  font-family: var(--serif);
  font-size: 1.25rem;
  color: var(--text);
  text-decoration: none;
}

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

nav ul {
  list-style: none;
  display: flex;
  gap: 2rem;
}

nav a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: .875rem;
  font-weight: 500;
  transition: color .2s;
}

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

.ham {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.ham i {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  margin: 5px 0;
}

/* Back link (project pages) */
.back {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  color: var(--text-muted);
  text-decoration: none;
  font-size: .875rem;
  font-weight: 500;
  transition: color .2s;
}

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

.back svg {
  width: 16px;
  height: 16px;
}

/* ----- Section Typography ----- */
.sl {
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .15em;
  color: var(--accent);
  margin-bottom: 1rem;
}

.st {
  font-family: var(--serif);
  font-size: 2.25rem;
  letter-spacing: -.02em;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.ss {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 560px;
  margin-bottom: 3rem;
}

/* ----- Buttons ----- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1.5rem;
  border-radius: 8px;
  font-size: .9rem;
  font-weight: 600;
  text-decoration: none;
  transition: all .25s;
  font-family: var(--sans);
  cursor: pointer;
}

.btn svg {
  width: 16px;
  height: 16px;
}

.bp {
  background: var(--accent);
  color: #111;
  border: none;
}

.bp:hover {
  background: #d4d4d4;
  transform: translateY(-1px);
  box-shadow: 0 4px 20px var(--accent-glow);
}

.bg {
  background: transparent;
  color: var(--text);
  border: 1.5px solid var(--border);
}

.bg:hover {
  border-color: var(--text-muted);
  background: var(--bg-card);
}

/* ----- Tags ----- */
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
}

.tag {
  font-size: .72rem;
  font-weight: 600;
  padding: .3rem .7rem;
  border-radius: 6px;
  background: var(--tag-bg);
  color: var(--tag-text);
}

.tag.a {
  background: var(--accent-light);
  color: var(--accent);
}

/* ========================================
   Homepage
   ======================================== */

/* ----- Hero ----- */
.hero {
  padding-top: 10rem;
  padding-bottom: 5rem;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 100%;
  background: radial-gradient(ellipse 80% 50% at 50% 0%, rgba(255, 255, 255, .04), transparent);
  pointer-events: none;
}

.hc {
  position: relative;
}

.hero-split {
  display: flex;
  align-items: center;
  gap: 4rem;
}

.hero-text {
  flex: 1;
}

.hero-photo {
  flex-shrink: 0;
}

.hp {
  width: 200px;
  border-radius: 40px;
  border: 3px solid rgba(255, 255, 255, .08);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-muted);
  font-weight: 500;
  letter-spacing: .05em;
  text-transform: uppercase;
  margin-bottom: 1rem;
  margin-top: -.75rem;
}

.hb {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: var(--accent-light);
  color: var(--accent);
  font-size: .8rem;
  font-weight: 600;
  padding: .4rem 1rem;
  border-radius: 100px;
  margin-bottom: 1.75rem;
}

.hb .dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .4; }
}

.hero h1 {
  font-family: var(--serif);
  font-size: clamp(2.5rem, 5.5vw, 4rem);
  line-height: 1.1;
  letter-spacing: -.03em;
  margin-bottom: 1.5rem;
}

.hero h1 .thin {
  font-weight: 400;
  color: var(--text-muted);
}

.hero-text > p {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 580px;
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

.ha {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ----- Stats Row ----- */
.sr {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  margin-top: 4rem;
}

.s {
  background: var(--bg-card);
  padding: 1.75rem 1.5rem;
  text-align: center;
}

.sv {
  font-family: var(--serif);
  font-size: 2rem;
  letter-spacing: -.02em;
}

.slb {
  font-size: .78rem;
  color: var(--text-muted);
  margin-top: .25rem;
  font-weight: 500;
}

/* ----- Skills Grid ----- */
.sg {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.sc {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  transition: border-color .25s, box-shadow .25s;
}

.sc:hover {
  border-color: #3A3A3A;
  box-shadow: 0 4px 16px rgba(0, 0, 0, .3);
}

.si {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  font-size: 1.2rem;
}

.sc h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: .5rem;
}

.sc p {
  font-size: .875rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1rem;
}

/* ----- Projects Grid (homepage) ----- */
.pg {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.pc {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color .25s, transform .25s, box-shadow .25s;
  text-decoration: none;
  color: inherit;
}

.pc:hover {
  border-color: #3A3A3A;
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, .4);
}

.pi {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
  background: var(--bg-elevated);
}

.pip {
  width: 100%;
  height: 220px;
  background: var(--bg-elevated);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: .78rem;
  border-bottom: 1px solid var(--border);
  gap: .5rem;
}

.pip svg {
  width: 32px;
  height: 32px;
  opacity: .3;
}

.pip .fn {
  font-family: monospace;
  font-size: .7rem;
  color: var(--accent);
  opacity: .7;
}

.pb {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.ph {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: .75rem;
}

.pt {
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--accent);
  background: var(--accent-light);
  padding: .25rem .65rem;
  border-radius: 4px;
}

.pa {
  color: var(--text-muted);
  transition: transform .2s;
  flex-shrink: 0;
}

.pc:hover .pa {
  transform: translate(3px, -3px);
}

.pc h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: .5rem;
}

.pc p {
  font-size: .85rem;
  color: var(--text-muted);
  line-height: 1.6;
  flex: 1;
  margin-bottom: 1rem;
}

.pc .tags {
  margin-bottom: .75rem;
}

.pl {
  display: flex;
  align-items: center;
  gap: .4rem;
  font-size: .78rem;
  color: var(--text-muted);
  font-weight: 500;
}

.ld {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.lc { background: #555; }
.lcpp { background: #f34b7d; }
.lpy { background: #3572A5; }
.lhw { background: #4CAF50; }

/* ----- Timeline ----- */
.tl {
  position: relative;
  padding-left: 2.5rem;
}

.tl::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 1.5px;
  background: var(--border);
}

.ti {
  position: relative;
  padding-bottom: 3rem;
}

.ti:last-child {
  padding-bottom: 0;
}

.td {
  position: absolute;
  left: -2.5rem;
  top: 6px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--bg);
  border: 2.5px solid var(--accent);
}

.ti.cur .td {
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-light);
}

.tdt {
  font-size: .78rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: .35rem;
}

.tr {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: .15rem;
}

.tc {
  font-size: .9rem;
  color: var(--text-muted);
  margin-bottom: .75rem;
}

.th {
  list-style: none;
}

.th li {
  font-size: .875rem;
  color: var(--text-muted);
  line-height: 1.6;
  padding-left: 1.2rem;
  position: relative;
  margin-bottom: .4rem;
}

.th li::before {
  content: '';
  position: absolute;
  left: 0;
  top: .6em;
  width: 5px;
  height: 1.5px;
  background: var(--accent);
}

/* ----- Contact ----- */
.cs {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 4rem;
  text-align: center;
  margin-bottom: 4rem;
}

.cs p {
  color: var(--text-muted);
  max-width: 480px;
  margin: 0 auto 2.5rem;
}

.cl {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.cla {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  color: var(--text);
  text-decoration: none;
  font-size: .9rem;
  font-weight: 500;
  padding: .7rem 1.4rem;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  transition: all .25s;
}

.cla:hover {
  background: var(--accent-light);
  border-color: var(--accent);
  color: var(--accent);
}

.cla svg {
  width: 16px;
  height: 16px;
}

/* ========================================
   Project Detail Pages
   ======================================== */

.c-narrow .hero {
  padding-top: 8rem;
  padding-bottom: 2rem;
  position: static;
}

.c-narrow .hero::before {
  display: none;
}

.c-narrow .pt {
  display: inline-block;
  padding: .3rem .75rem;
  margin-bottom: 1rem;
}

.c-narrow h1 {
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.15;
  letter-spacing: -.02em;
  margin-bottom: .75rem;
}

.c-narrow .btn {
  padding: .7rem 1.4rem;
  font-size: .875rem;
}

.c-narrow .tags {
  margin-bottom: 2rem;
}

.c-narrow .tag {
  font-size: .75rem;
  padding: .35rem .8rem;
}

.meta {
  display: flex;
  gap: 1.5rem;
  align-items: center;
  color: var(--text-muted);
  font-size: .85rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.meta svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: .35rem;
}

.tagline {
  font-size: 1.15rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 2rem;
  max-width: 700px;
}

.actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

/* Gallery */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
  margin-bottom: 3rem;
}

.c-narrow .gallery {
  grid-template-columns: 1fr;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.gi {
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
}

.gi img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform .3s;
}

.gi:hover img {
  transform: scale(1.03);
}

.gp {
  width: 100%;
  height: 240px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  gap: .5rem;
}

.gp svg {
  width: 32px;
  height: 32px;
  opacity: .3;
}

.gp .fn {
  font-family: monospace;
  font-size: .7rem;
  color: var(--accent);
  opacity: .7;
}

/* Video Embed */
.video-embed {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
}

.video-embed iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* Description & Specs */
.desc {
  color: var(--text-muted);
  font-size: .95rem;
  line-height: 1.8;
  margin-bottom: 2rem;
  max-width: 700px;
}

.desc p {
  margin-bottom: 1rem;
}

.specs {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  margin-bottom: 3rem;
}

.specs h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  color: var(--text);
}

.spec-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.25rem;
}

.spec-item {
  display: flex;
  flex-direction: column;
  gap: .2rem;
}

.spec-label {
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--accent);
}

.spec-value {
  font-size: .9rem;
  color: var(--text-muted);
}

/* ========================================
   Footer
   ======================================== */

footer {
  padding: 2rem 0;
  text-align: center;
  font-size: .8rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
}

/* ========================================
   Animations
   ======================================== */

.fi {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .6s ease, transform .6s ease;
}

.fi.v {
  opacity: 1;
  transform: translateY(0);
}

/* ========================================
   Responsive
   ======================================== */

@media (max-width: 768px) {
  /* Nav mobile */
  nav ul {
    display: none;
  }

  nav ul.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--bg);
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--border);
    gap: 1rem;
  }

  .ham {
    display: block;
  }

  /* Homepage */
  .hero {
    padding-top: 7rem;
  }

  .hero-split {
    flex-direction: row;
    gap: 1.5rem;
    align-items: flex-start;
  }

  .hero-photo {
    order: 0;
  }

  .hp {
    width: 90px;
    border-radius: 20px;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: .9rem;
  }

  .hero-text > p {
    font-size: 1rem;
  }

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

  .sg,
  .pg {
    grid-template-columns: 1fr;
  }

  .pi {
    height: auto;
  }

  .cs {
    padding: 3rem 1.5rem;
  }

  section {
    padding: 3rem 0;
  }

  /* Project pages */
  .c-narrow .hero {
    padding-top: 6rem;
  }

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

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

  .c-narrow .gallery {
    max-width: 100%;
  }

  .actions {
    flex-direction: column;
  }

  .actions .btn {
    width: 100%;
    justify-content: center;
  }

  .meta {
    flex-direction: column;
    gap: 0.5rem;
  }

  .video-embed {
    margin-left: -1rem;
    margin-right: -1rem;
    border-radius: 0;
  }
}