/* ============================================================
   TOKENS
   ============================================================ */
:root{
  --bg: #FFFFFF;
  --bg-soft: #F6F6F9;
  --bg-card: #FFFFFF;
  --ink: #17181C;
  --ink-dim: #585B63;
  --ink-faint: #8D8F97;
  --border: #E8E8EC;
  --border-strong: #D6D7DC;

  --accent: #6C5CE7;
  --accent-ink: #FFFFFF;
  --accent-soft: #EFECFF;

  --blue: #3B82F6;   --blue-soft: #EAF1FE;
  --purple:#8B5CF6;  --purple-soft:#F2EDFE;
  --green: #10B981;  --green-soft: #E7F9F2;
  --amber: #F59E0B;  --amber-soft: #FEF4E3;
  --pink:  #EC4899;  --pink-soft:  #FDEBF4;
  --cyan:  #06B6D4;  --cyan-soft:  #E4F8FB;

  --shadow: 0 2px 10px rgba(20,20,30,0.05), 0 1px 2px rgba(20,20,30,0.04);
  --shadow-lift: 0 14px 30px rgba(20,20,30,0.09);

  --font-display: 'Poppins', 'Inter', sans-serif;
  --font-body: 'Inter', -apple-system, sans-serif;
  --font-mono: 'IBM Plex Mono', 'SF Mono', monospace;

  --container: 1120px;
  --pad: clamp(20px, 5vw, 56px);
  --radius: 18px;
}

[data-theme="dark"]{
  --bg: #121214;
  --bg-soft: #1A1B1E;
  --bg-card: #1D1E22;
  --ink: #F1F1F3;
  --ink-dim: #ACAEB6;
  --ink-faint: #77797F;
  --border: #2A2B30;
  --border-strong: #38393F;
  --accent-soft: #262047;
  --blue-soft:#152238; --purple-soft:#211a38; --green-soft:#132a22;
  --amber-soft:#2c2312; --pink-soft:#2c1621; --cyan-soft:#0f242a;
  --shadow: 0 2px 10px rgba(0,0,0,0.35), 0 1px 2px rgba(0,0,0,0.3);
  --shadow-lift: 0 16px 34px rgba(0,0,0,0.45);
}

*{ box-sizing: border-box; margin:0; padding:0; }
html{ scroll-behavior: smooth; }

body{
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  transition: background 0.25s ease, color 0.25s ease;
}

a{ color: inherit; text-decoration: none; }
img{ max-width: 100%; display:block; }
ul{ list-style:none; }
::selection{ background: var(--accent); color: #fff; }
:focus-visible{ outline: 2px solid var(--accent); outline-offset: 3px; }

.icon{ width: 18px; height: 18px; stroke: currentColor; fill:none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; flex-shrink:0; }

/* ============================================================
   NAV
   ============================================================ */
.nav{
  position: sticky; top:0; z-index: 100;
  display:flex; align-items:center; gap: 28px;
  padding: 16px var(--pad);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav__brand{ display:flex; align-items:center; gap: 12px; margin-right: auto; }
.nav__brand img{ width: 38px; height: 38px; border-radius: 50%; object-fit: cover; border: 1.5px solid var(--border-strong); }
.nav__brand span{ font-family: var(--font-display); font-weight: 600; font-size: 17px; }

.nav__links{ display:flex; gap: 6px; }
.nav__links a{
  display:flex; align-items:center; gap: 7px;
  padding: 9px 15px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 14.5px;
  color: var(--ink-dim);
  transition: border-color 0.2s ease, color 0.2s ease;
}
.nav__links a:hover{ color: var(--ink); }
.nav__links a.is-active{ border-color: var(--border-strong); color: var(--ink); font-weight: 500; }

.nav__actions{ display:flex; align-items:center; gap: 10px; }
.nav__theme{
  display:flex; align-items:center; justify-content:center;
  width: 38px; height: 38px;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  color: var(--ink-dim);
  background: none; cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.nav__theme:hover{ color: var(--accent); border-color: var(--accent); }
.nav__theme .icon-moon{ display:block; }
.nav__theme .icon-sun{ display:none; }
[data-theme="dark"] .nav__theme .icon-moon{ display:none; }
[data-theme="dark"] .nav__theme .icon-sun{ display:block; }

.nav__toggle{ display:none; flex-direction: column; gap: 5px; background:none; border:none; cursor:pointer; padding: 8px; }
.nav__toggle span{ width: 22px; height:2px; background: var(--ink); }

@media (max-width: 900px){
  .nav__links{
    position: fixed; top: 70px; right: 16px; left: 16px;
    flex-direction: column; gap: 6px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 10px;
    box-shadow: var(--shadow-lift);
    transform: translateY(-12px); opacity: 0; pointer-events: none;
    transition: transform 0.2s ease, opacity 0.2s ease;
  }
  .nav__links.is-open{ transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav__links a{ width: 100%; }
  .nav__toggle{ display:flex; }
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn{
  display:inline-flex; align-items:center; gap: 9px;
  padding: 13px 24px;
  border-radius: 999px;
  font-size: 14.5px; font-weight: 500;
  border: 1px solid var(--border-strong);
  color: var(--ink);
  transition: all 0.2s ease;
}
.btn:hover{ border-color: var(--accent); color: var(--accent); transform: translateY(-1px); }
.btn--solid{ background: var(--accent); border-color: var(--accent); color: #fff; }
.btn--solid:hover{ background: #5b4bd6; color: #fff; transform: translateY(-1px); }
.btn--block{ width: 100%; justify-content: center; }

/* ============================================================
   PAGE HERO HEADER (About/Projects/Skills/Contact top banner)
   ============================================================ */
.page-head{ max-width: var(--container); margin: 0 auto; padding: 64px var(--pad) 12px; text-align:center; }
.page-head__title{ font-family: var(--font-display); font-weight: 700; font-size: clamp(34px, 5vw, 52px); margin-bottom: 14px; }
.page-head__desc{ color: var(--ink-dim); max-width: 560px; margin: 0 auto; font-size: 16px; }

/* ============================================================
   HOME HERO
   ============================================================ */
.hero{ max-width: var(--container); margin: 0 auto; padding: 64px var(--pad) 80px; text-align:center; }

.hero__photo{ position:relative; width: 220px; height: 220px; margin: 0 auto 36px; }
.hero__photo::before{
  content:"";
  position:absolute; inset: -10px;
  border-radius: 50%;
  background: conic-gradient(from 180deg, var(--accent), var(--pink), var(--cyan), var(--accent));
  filter: blur(18px);
  opacity: 0.45;
  z-index: 0;
}
.hero__photo img{
  position:relative; z-index:1;
  width: 100%; height: 100%; border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--bg);
}

.hero__title{ font-family: var(--font-display); font-weight: 700; font-size: clamp(34px, 6vw, 58px); line-height: 1.15; margin-bottom: 18px; }
.hero__title span{ color: var(--accent); }
.hero__desc{ color: var(--ink-dim); font-size: clamp(15px, 1.6vw, 18px); max-width: 560px; margin: 0 auto 32px; }

.hero__actions{ display:flex; flex-wrap: wrap; justify-content:center; gap: 14px; margin-bottom: 44px; }

.follow{ display:flex; flex-direction: column; align-items:center; gap: 16px; }
.follow__label{ font-family: var(--font-display); font-weight: 600; font-size: 15px; color: var(--ink-dim); }
.follow__links{ display:flex; gap: 14px; }
.follow__links a{
  display:flex; align-items:center; justify-content:center;
  width: 42px; height: 42px;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  color: var(--ink-dim);
  transition: all 0.2s ease;
}
.follow__links a:hover{ color: var(--accent); border-color: var(--accent); transform: translateY(-2px); }

/* ============================================================
   SECTIONS (generic)
   ============================================================ */
.section{ max-width: var(--container); margin: 0 auto; padding: 20px var(--pad) 96px; }
.reveal{ opacity:0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.is-visible{ opacity:1; transform:none; }

.card{
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* ============================================================
   ABOUT PAGE
   ============================================================ */
.about__layout{ display:grid; grid-template-columns: 300px 1fr 280px; gap: 28px; align-items:start; }

.profile-card{ padding: 32px 26px; text-align:center; }
.profile-card img{ width: 130px; height: 130px; border-radius: 50%; object-fit:cover; margin: 0 auto 18px; border: 3px solid var(--border); }
.profile-card h2{ font-family: var(--font-display); font-size: 20px; margin-bottom: 8px; }
.profile-card p{ color: var(--ink-dim); font-size: 14px; margin-bottom: 18px; }
.profile-card .chips{ justify-content:center; }

.hobbies-card{ padding: 26px; margin-top: 24px; }
.hobbies-card h3{ font-family: var(--font-display); font-size: 17px; margin-bottom: 18px; }
.hobby{ display:flex; gap: 14px; margin-bottom: 16px; }
.hobby:last-child{ margin-bottom:0; }
.hobby__icon{
  flex-shrink:0; width: 38px; height: 38px; border-radius: 10px;
  display:flex; align-items:center; justify-content:center;
  background: var(--accent-soft); color: var(--accent);
}
.hobby h4{ font-size: 14.5px; margin-bottom: 3px; }
.hobby p{ font-size: 13.5px; color: var(--ink-dim); }

.about-main h1{ font-family: var(--font-display); font-weight: 700; font-size: clamp(28px, 3.4vw, 38px); margin-bottom: 22px; }
.about-main p{ color: var(--ink-dim); margin-bottom: 18px; max-width: 620px; }

.facts-card{ padding: 24px; }
.facts-card__eyebrow{
  display:inline-block; font-size: 12px; font-weight: 600; letter-spacing: 0.04em;
  color: var(--accent); background: var(--accent-soft);
  padding: 5px 12px; border-radius: 999px; margin-bottom: 16px;
}
.facts-card h3{ font-family: var(--font-display); font-size: 19px; margin-bottom: 20px; }
.fact-row{
  display:flex; align-items:center; gap: 14px;
  padding: 13px; border-radius: 12px; background: var(--bg-soft);
  margin-bottom: 10px;
}
.fact-row:last-of-type{ margin-bottom: 18px; }
.fact-row__icon{ width: 34px; height: 34px; border-radius: 9px; display:flex; align-items:center; justify-content:center; flex-shrink:0; }
.fact-row__value{ font-weight: 600; font-size: 14.5px; }
.fact-row__label{ font-size: 12.5px; color: var(--ink-faint); }

@media (max-width: 980px){
  .about__layout{ grid-template-columns: 1fr; }
}

/* ============================================================
   PROJECTS PAGE
   ============================================================ */
.projects__grid{ display:grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 26px; }
.project-card{ overflow:hidden; display:flex; flex-direction:column; }
.project-card__cover{
  height: 160px;
  display:flex; align-items:center; justify-content:center;
}
.project-card__cover .icon{ width: 46px; height: 46px; color: #fff; opacity: 0.9; }
.project-card__body{ padding: 22px 24px 26px; display:flex; flex-direction:column; gap: 12px; flex:1; }
.project-card__title{ font-family: var(--font-display); font-weight: 600; font-size: 19px; }
.project-card__desc{ color: var(--ink-dim); font-size: 14px; flex:1; }
.project-card__links{ display:flex; gap: 10px; margin-top: 4px; }
.project-card__links a{
  display:flex; align-items:center; gap: 6px;
  font-size: 13px; font-weight: 500;
  padding: 8px 14px; border-radius: 999px;
  border: 1px solid var(--border-strong);
  color: var(--ink-dim);
  transition: all 0.2s ease;
}
.project-card__links a:hover{ color: var(--accent); border-color: var(--accent); }

.cover--indigo{ background: linear-gradient(135deg, #6C5CE7, #8B5CF6); }
.cover--teal{ background: linear-gradient(135deg, #10B981, #06B6D4); }
.cover--rose{ background: linear-gradient(135deg, #EC4899, #F59E0B); }

/* ============================================================
   SKILLS PAGE
   ============================================================ */
.skills__grid{ display:grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.skill-card{ padding: 26px; }
.skill-card h3{ font-family: var(--font-display); font-size: 18px; margin-bottom: 16px; }
.chips{ display:flex; flex-wrap:wrap; gap: 9px; }
.chip{
  font-size: 13px; font-weight: 500;
  padding: 7px 14px; border-radius: 999px;
}
.chip--blue{ background: var(--blue-soft); color: var(--blue); }
.chip--purple{ background: var(--purple-soft); color: var(--purple); }
.chip--green{ background: var(--green-soft); color: var(--green); }
.chip--amber{ background: var(--amber-soft); color: var(--amber); }
.chip--pink{ background: var(--pink-soft); color: var(--pink); }
.chip--cyan{ background: var(--cyan-soft); color: var(--cyan); }

@media (max-width: 700px){ .skills__grid{ grid-template-columns: 1fr; } }

/* ============================================================
   CONTACT PAGE
   ============================================================ */
.contact__layout{ display:grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items:start; }
.contact-info h2{ font-family: var(--font-display); font-size: 22px; margin-bottom: 22px; }
.contact-row{ display:flex; align-items:flex-start; gap: 16px; margin-bottom: 22px; }
.contact-row__icon{
  width: 42px; height: 42px; border-radius: 12px;
  background: var(--accent-soft); color: var(--accent);
  display:flex; align-items:center; justify-content:center; flex-shrink:0;
}
.contact-row h4{ font-size: 14px; color: var(--ink-faint); margin-bottom: 2px; font-weight: 500; }
.contact-row p, .contact-row a{ font-size: 15.5px; font-weight: 500; }
.contact-row a:hover{ color: var(--accent); }

.contact-info .follow{ align-items: flex-start; margin-top: 32px; }
.contact-info .follow__links{ justify-content: flex-start; }

.collab-card{ padding: 32px; text-align:center; }
.collab-card h3{ font-family: var(--font-display); font-size: 21px; margin-bottom: 10px; }
.collab-card p{ color: var(--ink-dim); font-size: 14.5px; margin-bottom: 24px; }
.collab-card .btn{ margin-bottom: 12px; }
.collab-card__divider{ border-top: 1px solid var(--border); margin: 20px 0; }
.collab-card__note{ font-size: 13.5px; color: var(--ink-faint); }
.collab-card__note a{ color: var(--accent); font-weight: 500; }

@media (max-width: 860px){ .contact__layout{ grid-template-columns: 1fr; } }

/* ============================================================
   FOOTER
   ============================================================ */
.footer{ text-align:center; padding: 30px var(--pad) 44px; font-size: 13px; color: var(--ink-faint); border-top: 1px solid var(--border); }

/* ============================================================
   REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  .reveal{ opacity:1; transform:none; transition:none; }
  *{ animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}