/*
 * iamuntaha.com — Main Stylesheet
 * Split theme: dark cinematic hero, warm light body sections
 */

:root {
  /* Body sections — warm light */
  --color-bg: #fdfcf8;
  --color-bg-alt: #f5f3ee;
  --color-surface: #ffffff;
  --color-border: #e8e2d9;
  --color-text: #1c1917;
  --color-muted: #6b6560;
  --color-faint: #a09890;

  /* Accents */
  --color-accent: #ea6a0a;
  --color-accent-lt: #fff4ed;
  --color-blue: #3b6fd4;
  --color-blue-lt: #eef3fc;
  --color-green: #1a8a5a;
  --color-green-lt: #e6f5ee;
  --color-indigo: #4338ca;
  --color-gold: #d97706;

  /* Skill clusters */
  --sky: #2563eb;
  --sky-bg: #eff6ff;
  --sky-bd: #bfdbfe;
  --coral: #ea6a0a;
  --coral-bg: #fff4ed;
  --coral-bd: #fcd9b8;
  --mint: #059669;
  --mint-bg: #ecfdf5;
  --mint-bd: #a7f3d0;
  --goldC: #b45309;
  --gold-bg: #fffbeb;
  --gold-bd: #fde68a;
  --lav: #7c3aed;
  --lav-bg: #f5f3ff;
  --lav-bd: #ddd6fe;

  --font-display: "Nunito", sans-serif;
  --font-mono: "Fira Code", monospace;
  --radius: 0.875rem;
  --radius-pill: 2rem;
  --shadow-sm: 0 1px 4px rgba(0, 0, 0, 0.06), 0 2px 12px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.09);
  --shadow-orange: 0 4px 20px rgba(234, 106, 10, 0.3);
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-display);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  overflow-x: hidden;
}
a {
  color: inherit;
  text-decoration: none;
}
img {
  max-width: 100%;
  display: block;
}
ul {
  list-style: none;
}

/* ── Nav ──────────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  background: rgba(253, 252, 248, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow 0.3s;
}
.nav.scrolled {
  box-shadow: var(--shadow-md);
}
.nav__logo {
  font-weight: 900;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  color: var(--color-text);
}
.nav__logo-accent {
  color: var(--color-accent);
}
.nav__links {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav__link {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-muted);
  transition: color 0.2s;
  letter-spacing: 0.02em;
}
.nav__link:hover {
  color: var(--color-accent);
}
.nav__link--cta {
  background: var(--color-accent);
  color: #fff !important;
  padding: 0.45rem 1.15rem;
  border-radius: var(--radius-pill);
  font-size: 0.82rem !important;
  box-shadow: var(--shadow-orange);
  transition:
    transform 0.2s,
    box-shadow 0.2s !important;
}
.nav__link--cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(234, 106, 10, 0.5);
}

.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ── HERO — dark cinematic ────────────────────────────────── */
.hero {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  padding: 5rem 0;
  min-height: calc(100vh);
  box-sizing: border-box;
}
.hero__inner {
  display: grid;
  grid-template-columns: 1fr 440px;
  gap: 0;
  align-items: center;
  width: 100%;
  position: relative;
  z-index: 1;
}
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: var(--color-green-lt);
  color: var(--color-green);
  border: 1px solid #b7e8d2;
  font-size: 0.72rem;
  font-weight: 800;
  padding: 0.3rem 0.9rem;
  border-radius: var(--radius-pill);
  margin-bottom: 1rem;
  letter-spacing: 0.04em;
}
.hero__badge-dot {
  width: 7px;
  height: 7px;
  background: var(--color-green);
  border-radius: 50%;
  animation: badge-pulse 2.2s ease infinite;
}
@keyframes badge-pulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.4;
    transform: scale(0.75);
  }
}
.hero__name {
  font-size: clamp(2.4rem, 5.5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 0.55rem;
}
.hero__name-accent {
  color: var(--color-accent);
}
.hero__tagline {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--color-blue);
  margin-bottom: 1.3rem;
  opacity: 0.9;
}
.hero__bio {
  font-size: 1rem;
  color: var(--color-muted);
  max-width: 500px;
  margin-bottom: 2rem;
  line-height: 1.82;
}
.hero__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.hero__actions .btn--outline {
  border-color: var(--color-blue);
  color: var(--color-blue);
}
.hero__actions .btn--outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* Avatar — transparent bg image sits naturally in hero */
.avatar-wrap {
  position: relative;
  flex-shrink: 0;
}
.avatar-blob {
  display: none;
}
.avatar-wrap--photo {
  width: 440px;
  max-width: 100%;
  height: 500px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}
.avatar-photo {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center bottom;
  animation: avatar-float 5s ease-in-out infinite alternate;
  filter: drop-shadow(0 0 40px rgba(96, 165, 250, 0.15))
    drop-shadow(0 0 80px rgba(234, 106, 10, 0.08));
}
@keyframes avatar-float {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(-14px);
  }
}

/* ── UFO Fun Facts strip ──────────────────────────────────── */
.fun-strip {
  padding: 1rem 0;
  overflow: hidden;
  position: sticky;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: rgba(253, 252, 248, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow 0.3s;
}

.fun-strip__track {
  display: flex;
  gap: 1rem;
  animation: marquee 30s linear infinite;
  width: max-content;
}
.fun-strip__track:hover {
  animation-play-state: paused;
}
.fun-strip__item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  white-space: nowrap;
  font-size: 0.8rem;
  color: var(--color-accent);
  font-weight: 600;
}
.fun-strip__item .fun-icon {
  font-size: 1rem;
}
.fun-strip__sep {
  color: var(--color-blue);
  font-weight: 800;
  font-size: 20px;
}
@keyframes marquee {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

/* ── Light body sections ──────────────────────────────────── */
.section {
  padding: 5rem 0;
}
.section + .section {
  border-top: 1px solid var(--color-border);
}
.section__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-accent);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}
.section__title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 900;
  letter-spacing: -0.025em;
  margin-bottom: 2.5rem;
  line-height: 1.2;
}
.section__title-accent {
  color: var(--color-accent);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.9rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-pill);
  cursor: pointer;
  border: none;
  transition:
    transform 0.2s,
    box-shadow 0.2s;
  text-decoration: none;
}
.btn:hover {
  transform: translateY(-2px);
}
.btn--primary {
  background: var(--color-accent);
  color: #fff;
  box-shadow: var(--shadow-orange);
}
.btn--primary:hover {
  box-shadow: 0 8px 28px rgba(234, 106, 10, 0.5);
}
.btn--outline {
  background: transparent;
  color: var(--color-text);
  border: 1.5px solid var(--color-border);
}
.btn--outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* Highlights */
.highlights-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(205px, 1fr));
  gap: 1rem;
}
.highlight-card {
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.3rem;
  box-shadow: var(--shadow-sm);
  transition:
    transform 0.2s,
    box-shadow 0.2s,
    border-color 0.2s;
}
.highlight-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}
.highlight-card__icon {
  font-size: 1.85rem;
  margin-bottom: 0.55rem;
}
.highlight-card__label {
  font-weight: 800;
  font-size: 0.85rem;
  margin-bottom: 0.25rem;
}
.highlight-card__desc {
  font-size: 0.75rem;
  color: var(--color-muted);
  line-height: 1.55;
}

/* Skills */
.skills-list {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}
.skill-cluster {
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.2rem 1.5rem;
  box-shadow: var(--shadow-sm);
  transition:
    transform 0.2s,
    box-shadow 0.2s;
}
.skill-cluster:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.skill-cluster__header {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.85rem;
}
.skill-cluster__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.skill-cluster__name {
  font-weight: 800;
  font-size: 0.78rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}
.skill-cluster__pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.skill-pill {
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.3rem 0.85rem;
  border-radius: var(--radius-pill);
  border: 1.5px solid;
  transition: transform 0.15s;
  cursor: default;
}
.skill-pill:hover {
  transform: scale(1.06);
}

.skill-cluster--sky .skill-cluster__dot {
  background: var(--sky);
}
.skill-cluster--sky .skill-cluster__name {
  color: var(--sky);
}
.skill-cluster--sky .skill-pill {
  color: var(--sky);
  border-color: var(--sky-bd);
  background: var(--sky-bg);
}
.skill-cluster--coral .skill-cluster__dot {
  background: var(--coral);
}
.skill-cluster--coral .skill-cluster__name {
  color: var(--coral);
}
.skill-cluster--coral .skill-pill {
  color: var(--coral);
  border-color: var(--coral-bd);
  background: var(--coral-bg);
}
.skill-cluster--mint .skill-cluster__dot {
  background: var(--mint);
}
.skill-cluster--mint .skill-cluster__name {
  color: var(--mint);
}
.skill-cluster--mint .skill-pill {
  color: var(--mint);
  border-color: var(--mint-bd);
  background: var(--mint-bg);
}
.skill-cluster--gold .skill-cluster__dot {
  background: var(--goldC);
}
.skill-cluster--gold .skill-cluster__name {
  color: var(--goldC);
}
.skill-cluster--gold .skill-pill {
  color: var(--goldC);
  border-color: var(--gold-bd);
  background: var(--gold-bg);
}
.skill-cluster--lavender .skill-cluster__dot {
  background: var(--lav);
}
.skill-cluster--lavender .skill-cluster__name {
  color: var(--lav);
}
.skill-cluster--lavender .skill-pill {
  color: var(--lav);
  border-color: var(--lav-bd);
  background: var(--lav-bg);
}

/* Timeline */
.timeline {
  position: relative;
  padding-left: 2rem;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 0.45rem;
  top: 0.6rem;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-accent), transparent);
  border-radius: 2px;
}
.timeline__item {
  position: relative;
  margin-bottom: 2rem;
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.3rem 1.5rem;
  box-shadow: var(--shadow-sm);
  transition:
    transform 0.2s,
    box-shadow 0.2s,
    border-color 0.2s;
}
.timeline__item:hover {
  transform: translateX(5px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}
.timeline__dot {
  position: absolute;
  left: -2rem;
  top: 1.4rem;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-accent);
  border: 3px solid var(--color-bg);
  box-shadow: 0 0 0 2px var(--color-accent);
}
.timeline__period {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--color-faint);
  margin-bottom: 0.3rem;
}
.timeline__role {
  font-weight: 900;
  font-size: 1.02rem;
  margin-bottom: 0.1rem;
}
.timeline__company {
  font-weight: 700;
  font-size: 0.82rem;
  color: var(--color-accent);
  margin-bottom: 0.7rem;
}
.timeline__desc {
  font-size: 0.85rem;
  color: var(--color-muted);
  line-height: 1.7;
  margin-bottom: 0.85rem;
}
.timeline__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.timeline__tag {
  font-size: 0.68rem;
  font-weight: 700;
  padding: 0.2rem 0.65rem;
  background: var(--color-blue-lt);
  color: var(--color-blue);
  border-radius: var(--radius-pill);
  border: 1px solid #c3d9f8;
}

/* Contact */
.contact-box {
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  padding: 3rem 2.5rem;
  text-align: center;
  box-shadow: var(--shadow-md);
}
.contact-box__emoji {
  font-size: 3rem;
  margin-bottom: 1rem;
  display: block;
}
.contact-box__title {
  font-size: 1.85rem;
  font-weight: 900;
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}
.contact-box__sub {
  color: var(--color-muted);
  max-width: 460px;
  margin: 0 auto 2rem;
  font-size: 0.95rem;
  line-height: 1.7;
}
.contact-links {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-weight: 800;
  font-size: 0.82rem;
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-pill);
  border: 1.5px solid var(--color-border);
  background: var(--color-bg-alt);
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
  transition:
    transform 0.2s,
    border-color 0.2s,
    color 0.2s,
    box-shadow 0.2s;
}
.contact-link:hover {
  transform: translateY(-2px);
  border-color: var(--color-accent);
  color: var(--color-accent);
  box-shadow: var(--shadow-md);
}
/* X icon — bold letter instead of emoji */
.contact-link--x .contact-link__icon {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1rem;
  line-height: 1;
  letter-spacing: -0.05em;
  display: inline-flex;
  align-items: center;
}

/* Easter Egg */
.easter-egg {
  text-align: center;
  margin-top: 2.5rem;
  opacity: 0;
  transition: opacity 0.6s;
}
.easter-egg.revealed {
  opacity: 1;
}
.easter-egg__trigger {
  font-size: 3rem;
  cursor: pointer;
  display: inline-block;
  animation: egg-wobble 3s ease-in-out infinite;
  user-select: none;
}
@keyframes egg-wobble {
  0%,
  100% {
    transform: rotate(0);
  }
  20% {
    transform: rotate(-10deg);
  }
  40% {
    transform: rotate(10deg);
  }
  60% {
    transform: rotate(-5deg);
  }
}
.easter-egg__message {
  display: none;
  margin-top: 0.85rem;
  font-size: 0.9rem;
  color: var(--color-muted);
  line-height: 1.7;
  animation: egg-pop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.easter-egg__message.unopened-message {
  display: block;
}
.easter-egg__message a {
  color: var(--color-accent);
  font-weight: 800;
  text-decoration: underline;
  text-underline-offset: 3px;
  white-space: nowrap;
}
.easter-egg.opened .easter-egg__trigger {
  animation: none;
}
.easter-egg.opened .easter-egg__message {
  display: block;
}
.easter-egg.opened .easter-egg__message.unopened-message {
  display: none;
}
@keyframes egg-pop {
  from {
    opacity: 0;
    transform: scale(0.7) translateY(10px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

/* Footer */
.footer {
  text-align: center;
  padding: 2.5rem 1rem;
  font-size: 0.78rem;
  color: var(--color-faint);
  border-top: 1px solid var(--color-border);
}
.footer__link {
  color: var(--color-accent);
  font-weight: 700;
}

/* Scroll Reveal */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity 0.55s ease,
    transform 0.55s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 760px) {
  .container {
    max-width: 100%;
  }
  .hero {
    padding: 7rem 0 3rem;
  }
  .hero__inner {
    display: flex;
    flex-direction: column-reverse;
    text-align: center;
    gap: 15px;
  }
  .hero__bio,
  .hero__actions {
    margin-left: auto;
    margin-right: auto;
    justify-content: center;
  }
  .avatar-wrap--photo {
    width: 300px;
    height: 340px;
    margin: 0 auto;
  }
  .nav__links li:not(.cta-li) {
    display: none;
  }
  .contact-box {
    padding: 2rem 1.25rem;
  }
  .fun-strip__track {
    animation-duration: 20s;
  }
}