/* ==========================================================================
   Janni142 – Stylesheet
   ========================================================================== */

/* --- Design Tokens ------------------------------------------------------ */
:root {
  --bg:            #0b0d12;
  --bg-soft:       #11141b;
  --surface:       rgba(24, 28, 38, .55);
  --surface-hover: rgba(34, 40, 54, .75);
  --border:        rgba(255, 255, 255, .09);
  --border-strong: rgba(255, 255, 255, .18);

  --text:          #eef1f6;
  --text-muted:    #a6b0c2;
  --text-dim:      #7c8798;

  --accent:        #0096ff;
  --accent-soft:   #57bcff;
  --accent-warm:   #ff6b8a;

  --radius:     14px;
  --radius-lg:  22px;
  --shell:      1120px;

  --shadow:    0 10px 30px -12px rgba(0, 0, 0, .7);
  --shadow-lg: 0 26px 60px -20px rgba(0, 0, 0, .85);

  --ease: cubic-bezier(.22, .68, .36, 1);
}

/* --- Base --------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI",
               Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a { color: var(--accent-soft); text-decoration: none; }
a:hover { color: #8fd2ff; }

h1, h2, h3 {
  margin: 0;
  line-height: 1.15;
  letter-spacing: -.02em;
  font-weight: 700;
}

:focus-visible {
  outline: 2px solid var(--accent-soft);
  outline-offset: 3px;
  border-radius: 6px;
}

::selection { background: rgba(0, 150, 255, .35); color: #fff; }

/* --- Layout helpers ----------------------------------------------------- */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.section { padding-block: clamp(4rem, 10vw, 7rem); }

.section__head { max-width: 46rem; margin-bottom: 2.75rem; }

.section__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  margin-bottom: 1rem;
  padding: .3rem .8rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, .04);
  color: var(--text-muted);
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.section__eyebrow::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(0, 150, 255, .18);
}

.section__title { font-size: clamp(1.9rem, 4.5vw, 2.6rem); }

.section__lead {
  margin: 1rem 0 0;
  max-width: 42rem;
  color: var(--text-muted);
  font-size: 1.075rem;
}

/* --- Backdrop ----------------------------------------------------------- */
.backdrop {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(180deg, rgba(11, 13, 18, .62) 0%, rgba(11, 13, 18, .88) 55%, var(--bg) 100%),
    url("background.jpg") center / cover no-repeat;
}
.backdrop::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(60% 45% at 15% 0%, rgba(0, 150, 255, .16), transparent 70%),
    radial-gradient(55% 40% at 90% 15%, rgba(255, 107, 138, .12), transparent 70%);
}

/* --- Header / Nav ------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid transparent;
  transition: background .3s var(--ease), border-color .3s var(--ease);
}
.site-header.is-stuck {
  background: rgba(11, 13, 18, .72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4.5rem;
}

.nav__brand {
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  color: var(--text);
  font-weight: 700;
  letter-spacing: -.01em;
}
.nav__brand:hover { color: #fff; }
.nav__brand img {
  width: 32px; height: 32px;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: .35rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav__link {
  display: inline-block;
  padding: .5rem .85rem;
  border-radius: 999px;
  color: var(--text-muted);
  font-size: .925rem;
  font-weight: 500;
  transition: color .2s var(--ease), background .2s var(--ease);
}
.nav__link:hover {
  color: var(--text);
  background: rgba(255, 255, 255, .07);
}

/* --- Buttons ------------------------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .55rem;
  padding: .75rem 1.35rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform .2s var(--ease), background .2s var(--ease),
              border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn svg { width: 1.05em; height: 1.05em; flex: none; }

.btn--primary {
  background: linear-gradient(135deg, var(--accent), #0072d6);
  color: #fff;
  box-shadow: 0 10px 26px -12px rgba(0, 150, 255, .9);
}
.btn--primary:hover {
  color: #fff;
  box-shadow: 0 16px 34px -12px rgba(0, 150, 255, 1);
}

.btn--ghost {
  background: rgba(255, 255, 255, .05);
  border-color: var(--border-strong);
  color: var(--text);
}
.btn--ghost:hover {
  color: #fff;
  background: rgba(255, 255, 255, .1);
}

/* --- Hero --------------------------------------------------------------- */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: calc(100svh - 4.5rem);
  padding-block: clamp(3rem, 9vw, 6rem);
  text-align: center;
}
.hero .shell { display: flex; flex-direction: column; align-items: center; }

.hero__avatar {
  position: relative;
  margin-bottom: 1.75rem;
}
.hero__avatar img {
  width: clamp(7rem, 18vw, 9rem);
  height: clamp(7rem, 18vw, 9rem);
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-lg);
}
.hero__avatar::after {
  content: "";
  position: absolute;
  inset: -18%;
  z-index: -1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 150, 255, .38), transparent 68%);
  filter: blur(14px);
}

.hero__title {
  font-size: clamp(2.6rem, 9vw, 4.5rem);
  background: linear-gradient(180deg, #ffffff 35%, #a9c6e4 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__tagline {
  margin: 1.1rem 0 0;
  max-width: 34rem;
  color: var(--text-muted);
  font-size: clamp(1.05rem, 2.4vw, 1.25rem);
}

.hero__tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .5rem;
  margin: 1.75rem 0 0;
  padding: 0;
  list-style: none;
}
.hero__tags li {
  padding: .35rem .85rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, .045);
  color: var(--text-muted);
  font-size: .85rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .75rem;
  margin-top: 2.25rem;
}

.hero__scroll {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem; height: 2.75rem;
  margin-top: clamp(2.5rem, 7vw, 4rem);
  border: 1px solid var(--border);
  border-radius: 50%;
  background: rgba(255, 255, 255, .04);
  color: var(--text-muted);
  animation: bounce 2.2s infinite;
  transition: background .2s var(--ease), color .2s var(--ease);
}
.hero__scroll:hover { background: rgba(255, 255, 255, .1); color: #fff; }
.hero__scroll svg { width: 1.1rem; height: 1.1rem; }

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
  40% { transform: translateY(-9px); }
  60% { transform: translateY(-4px); }
}

/* --- Project cards ------------------------------------------------------ */
.cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.card {
  position: relative;
  display: flex;
  align-items: center;
  gap: 1rem;
  height: 100%;
  padding: 1.15rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: transform .28s var(--ease), border-color .28s var(--ease),
              background .28s var(--ease), box-shadow .28s var(--ease);
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 150, 255, .14), transparent 55%);
  opacity: 0;
  transition: opacity .28s var(--ease);
}
.card:hover,
.card:focus-within {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  background: var(--surface-hover);
  box-shadow: var(--shadow-lg);
}
.card:hover::before,
.card:focus-within::before { opacity: 1; }

.card__icon {
  position: relative;
  display: grid;
  place-items: center;
  flex: none;
  width: 3.25rem; height: 3.25rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .05);
  color: var(--accent-soft);
  font-size: 1.25rem;
  font-weight: 700;
  overflow: hidden;
}
.card__icon img { width: 100%; height: 100%; object-fit: cover; }

.card__body { position: relative; min-width: 0; padding-right: 1.25rem; }

.card__title { font-size: 1.05rem; font-weight: 600; }
.card__title a { color: var(--text); }
.card__title a::after { content: ""; position: absolute; inset: 0; }
.card:hover .card__title a { color: var(--accent-soft); }

.card__ext {
  position: absolute;
  top: .9rem;
  right: 1rem;
  color: var(--text-dim);
  opacity: .7;
  transition: transform .2s var(--ease), opacity .2s var(--ease), color .2s var(--ease);
}
.card__ext svg { width: .95rem; height: .95rem; }
.card:hover .card__ext {
  transform: translate(2px, -2px);
  opacity: 1;
  color: var(--accent-soft);
}

.card__role {
  display: inline-block;
  margin-top: .3rem;
  padding: .1rem .55rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-dim);
  font-size: .75rem;
  font-weight: 500;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.card__icon[data-fallback] { color: var(--accent-soft); }

/* --- Contact ------------------------------------------------------------ */
.panel {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
}

.panel__title {
  display: flex;
  align-items: center;
  gap: .7rem;
  font-size: 1.35rem;
}

.panel__badge {
  padding: .2rem .7rem;
  border: 1px solid rgba(255, 107, 138, .35);
  border-radius: 999px;
  background: rgba(255, 107, 138, .12);
  color: #ffa8ba;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.panel__text { margin: .5rem 0 0; color: var(--text-muted); }

.panel__actions { display: flex; flex-wrap: wrap; gap: .75rem; }

/* --- Footer ------------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--border);
  background: rgba(11, 13, 18, .6);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.site-footer .shell {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.75rem;
}

.footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.footer__links a {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  color: var(--text-muted);
  font-size: .925rem;
  transition: color .2s var(--ease);
}
.footer__links a:hover { color: var(--accent-soft); }
.footer__links svg { width: 1em; height: 1em; }

.footer__copy { margin: 0; color: var(--text-dim); font-size: .875rem; }
.footer__copy strong { color: var(--text-muted); font-weight: 600; }

/* --- Scroll reveal ------------------------------------------------------ */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .6s var(--ease), transform .6s var(--ease);
}
.reveal.is-visible { opacity: 1; transform: none; }

/* --- Responsive --------------------------------------------------------- */
@media (min-width: 640px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .cards { grid-template-columns: repeat(4, 1fr); }
}

@media (max-width: 640px) {
  .nav__link { padding: .5rem .6rem; font-size: .875rem; }
  .nav__brand span { display: none; }
  .site-footer .shell { justify-content: center; text-align: center; }
  .footer__links { justify-content: center; }
}

/* --- Motion / contrast preferences -------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}