/* ==========================================================================
   Gaurav & Parul — Portfolio design system
   Shared styles for the landing page and both profile pages.
   ========================================================================== */

:root {
  /* Neutrals */
  --bg:        #0b1020;
  --bg-soft:   #10162b;
  --surface:   #ffffff;
  --text:      #0f172a;
  --text-inv:  #e5e9f5;
  --muted:     #64748b;
  --muted-inv: #94a3b8;
  --border:    #e2e8f0;
  --border-inv:rgba(255, 255, 255, 0.12);

  /* Per-person accents */
  --gaurav:      #4f46e5;   /* indigo */
  --gaurav-2:    #6366f1;
  --gaurav-soft: #eef2ff;
  --parul:       #db2777;   /* rose */
  --parul-2:     #ec4899;
  --parul-soft:  #fdf2f8;

  --radius:   18px;
  --radius-lg:26px;
  --shadow:   0 10px 30px -12px rgba(2, 6, 23, 0.25);
  --shadow-lg:0 30px 60px -20px rgba(2, 6, 23, 0.45);
  --maxw:     1120px;
  --font: "Segoe UI", Roboto, -apple-system, BlinkMacSystemFont, "Helvetica Neue",
          Arial, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--surface);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

.accent-text { color: var(--accent, var(--gaurav)); }

/* Buttons ---------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 13px 24px; border-radius: 999px;
  font-weight: 600; font-size: 0.95rem;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: var(--accent, var(--gaurav)); color: #fff;
  box-shadow: 0 12px 24px -10px var(--accent, var(--gaurav));
}
.btn-ghost {
  background: transparent; color: var(--text);
  border-color: var(--border);
}
.btn-ghost:hover { border-color: var(--accent, var(--gaurav)); color: var(--accent, var(--gaurav)); }

/* =========================================================================
   LANDING PAGE
   ========================================================================= */
.landing {
  min-height: 100vh;
  background:
    radial-gradient(1200px 600px at 15% -10%, rgba(99,102,241,.28), transparent 60%),
    radial-gradient(1000px 600px at 100% 0%, rgba(236,72,153,.22), transparent 55%),
    linear-gradient(160deg, var(--bg), var(--bg-soft));
  color: var(--text-inv);
  display: flex; flex-direction: column;
}

.landing-nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 26px 0;
}
.brand { display: flex; align-items: center; gap: 12px; font-weight: 700; letter-spacing: .3px; }
.brand-mark {
  width: 38px; height: 38px; border-radius: 11px;
  display: grid; place-items: center; font-size: .95rem; font-weight: 800;
  background: linear-gradient(135deg, var(--gaurav-2), var(--parul-2));
  color: #fff;
}
.landing-nav .nav-links { display: flex; gap: 26px; font-size: .92rem; color: var(--muted-inv); }
.landing-nav .nav-links a:hover { color: #fff; }

.landing-hero {
  flex: 1;
  display: flex; flex-direction: column; justify-content: center;
  padding: 40px 0 70px;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .8rem; font-weight: 600; letter-spacing: 1.5px; text-transform: uppercase;
  color: var(--muted-inv);
  padding: 7px 14px; border: 1px solid var(--border-inv); border-radius: 999px;
  width: fit-content; margin: 0 auto 26px;
}
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: #22c55e; box-shadow: 0 0 0 4px rgba(34,197,94,.2); }

.landing-hero h1 {
  text-align: center;
  font-size: clamp(2.4rem, 6vw, 4rem);
  line-height: 1.08; font-weight: 800; letter-spacing: -1px;
  margin-bottom: 20px;
}
.landing-hero h1 .grad {
  background: linear-gradient(120deg, #a5b4fc, #f0abfc);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.landing-hero .lede {
  text-align: center; max-width: 620px; margin: 0 auto 54px;
  color: var(--muted-inv); font-size: clamp(1rem, 2.2vw, 1.15rem);
}

/* Selection cards */
.choose {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 28px; max-width: 860px; margin: 0 auto; width: 100%;
}
.pcard {
  position: relative; overflow: hidden;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-inv);
  border-radius: var(--radius-lg);
  padding: 38px 34px;
  backdrop-filter: blur(8px);
  transition: transform .3s ease, border-color .3s ease, background .3s ease;
  display: flex; flex-direction: column; gap: 18px;
}
.pcard::before {
  content: ""; position: absolute; inset: 0; opacity: 0; transition: opacity .3s ease;
  background: radial-gradient(600px 300px at 50% -20%, var(--glow), transparent 70%);
}
.pcard:hover { transform: translateY(-8px); border-color: var(--accent); background: rgba(255,255,255,0.07); }
.pcard:hover::before { opacity: 1; }
.pcard--gaurav { --accent: var(--gaurav-2); --glow: rgba(99,102,241,.35); }
.pcard--parul  { --accent: var(--parul-2);  --glow: rgba(236,72,153,.32); }

.pcard .avatar {
  width: 84px; height: 84px; border-radius: 22px;
  display: grid; place-items: center;
  font-size: 2rem; font-weight: 800; color: #fff;
  box-shadow: var(--shadow);
}
.pcard--gaurav .avatar { background: linear-gradient(135deg, #4f46e5, #818cf8); }
.pcard--parul  .avatar { background: linear-gradient(135deg, #db2777, #f472b6); }

.pcard h3 { font-size: 1.6rem; font-weight: 800; letter-spacing: -.4px; }
.pcard .role { color: var(--muted-inv); font-size: .95rem; font-weight: 500; margin-top: -8px; }
.pcard .tags { display: flex; flex-wrap: wrap; gap: 8px; }
.pcard .tag {
  font-size: .78rem; padding: 5px 11px; border-radius: 999px;
  background: rgba(255,255,255,.06); border: 1px solid var(--border-inv);
  color: var(--muted-inv);
}
.pcard .go {
  margin-top: auto; display: inline-flex; align-items: center; gap: 8px;
  font-weight: 700; color: var(--accent); font-size: .98rem;
}
.pcard .go .arrow { transition: transform .25s ease; }
.pcard:hover .go .arrow { transform: translateX(5px); }

.landing-foot {
  text-align: center; color: var(--muted-inv); font-size: .85rem;
  padding: 28px 0 34px;
}

/* =========================================================================
   PROFILE PAGES
   ========================================================================= */
.profile { --accent: var(--gaurav); --accent-2: var(--gaurav-2); --accent-soft: var(--gaurav-soft); }
.profile.parul { --accent: var(--parul); --accent-2: var(--parul-2); --accent-soft: var(--parul-soft); }

.top-bar {
  position: sticky; top: 0; z-index: 20;
  background: rgba(255,255,255,.82); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.top-bar .wrap { display: flex; align-items: center; justify-content: space-between; height: 66px; }
.top-bar .back { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); font-weight: 600; font-size: .9rem; }
.top-bar .back:hover { color: var(--accent); }
.top-bar nav { display: flex; gap: 26px; font-size: .92rem; font-weight: 500; color: var(--muted); }
.top-bar nav a:hover { color: var(--accent); }
.switch { color: var(--accent); font-weight: 600; font-size: .9rem; }

/* Hero */
.p-hero {
  position: relative; overflow: hidden;
  padding: 84px 0 72px;
  background:
    radial-gradient(700px 340px at 12% -10%, var(--accent-soft), transparent 65%),
    linear-gradient(180deg, #fff, #fbfcfe);
  border-bottom: 1px solid var(--border);
}
.p-hero .wrap { display: grid; grid-template-columns: 150px 1fr; gap: 40px; align-items: center; }
.p-avatar {
  width: 150px; height: 150px; border-radius: 34px;
  display: grid; place-items: center; color: #fff;
  font-size: 3.4rem; font-weight: 800; box-shadow: var(--shadow-lg);
}
.profile .p-avatar { background: linear-gradient(135deg, #4f46e5, #818cf8); }
.profile.parul .p-avatar { background: linear-gradient(135deg, #db2777, #f472b6); }
.p-hero .status {
  display: inline-flex; align-items: center; gap: 8px; font-size: .8rem; font-weight: 600;
  color: var(--accent); background: var(--accent-soft); padding: 6px 13px; border-radius: 999px;
  letter-spacing: .5px; text-transform: uppercase; margin-bottom: 14px;
}
.p-hero h1 { font-size: clamp(2.2rem, 5vw, 3.2rem); font-weight: 800; letter-spacing: -1px; line-height: 1.05; }
.p-hero .title { font-size: 1.15rem; color: var(--accent); font-weight: 600; margin: 6px 0 16px; }
.p-hero .bio { color: var(--muted); max-width: 640px; font-size: 1.02rem; }
.p-hero .actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.p-hero .socials { display: flex; gap: 12px; margin-top: 22px; }
.p-hero .socials a {
  width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center;
  border: 1px solid var(--border); color: var(--muted); font-weight: 700; font-size: .85rem;
  transition: all .2s ease;
}
.p-hero .socials a:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

/* Sections */
section.block { padding: 64px 0; }
section.block:nth-child(even) { background: #fbfcfe; }
.section-head { margin-bottom: 34px; }
.section-head .kicker { font-size: .78rem; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: var(--accent); }
.section-head h2 { font-size: clamp(1.6rem, 3.5vw, 2.1rem); font-weight: 800; letter-spacing: -.5px; margin-top: 8px; }
.section-head p { color: var(--muted); margin-top: 8px; max-width: 620px; }

.about-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 40px; }
.about-grid p { color: #334155; margin-bottom: 16px; }
.facts { display: grid; gap: 14px; align-content: start; }
.fact {
  display: flex; justify-content: space-between; gap: 16px;
  padding: 15px 18px; border: 1px solid var(--border); border-radius: 14px; background: #fff;
}
.fact .k { color: var(--muted); font-size: .9rem; }
.fact .v { font-weight: 600; font-size: .92rem; text-align: right; }

/* Skills */
.skills { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 18px; }
.skill {
  border: 1px solid var(--border); border-radius: 16px; padding: 22px; background: #fff;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.skill:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--accent); }
.skill h4 { font-size: 1.02rem; margin-bottom: 6px; }
.skill p { color: var(--muted); font-size: .88rem; }
.skill .icon {
  width: 44px; height: 44px; border-radius: 12px; background: var(--accent-soft);
  color: var(--accent); display: grid; place-items: center; font-weight: 800; margin-bottom: 14px;
}

/* Projects */
.projects { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 22px; }
.project {
  border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; background: #fff;
  display: flex; flex-direction: column; transition: transform .25s ease, box-shadow .25s ease;
}
.project:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.project .thumb { height: 130px; background: linear-gradient(135deg, var(--accent-2), var(--accent)); position: relative; }
.project .thumb span { position: absolute; inset: 0; display: grid; place-items: center; color: #fff; font-weight: 800; font-size: 1.3rem; opacity: .9; }
.project .body { padding: 22px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.project h4 { font-size: 1.1rem; }
.project p { color: var(--muted); font-size: .9rem; flex: 1; }
.project .stack { display: flex; flex-wrap: wrap; gap: 7px; }
.project .stack span { font-size: .74rem; padding: 4px 10px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); font-weight: 600; }

/* Timeline */
.timeline { position: relative; border-left: 2px solid var(--border); margin-left: 8px; padding-left: 28px; display: grid; gap: 30px; }
.tl-item { position: relative; }
.tl-item::before {
  content: ""; position: absolute; left: -37px; top: 4px; width: 14px; height: 14px; border-radius: 50%;
  background: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft);
}
.tl-item .when { font-size: .82rem; font-weight: 700; color: var(--accent); text-transform: uppercase; letter-spacing: 1px; }
.tl-item h4 { font-size: 1.1rem; margin: 4px 0 2px; }
.tl-item .org { color: var(--muted); font-size: .92rem; margin-bottom: 8px; }
.tl-item p { color: #475569; font-size: .93rem; }

/* Contact */
.contact-card {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff; border-radius: var(--radius-lg); padding: 48px; text-align: center;
  box-shadow: var(--shadow-lg);
}
.contact-card h2 { font-size: clamp(1.6rem, 4vw, 2.3rem); font-weight: 800; margin-bottom: 12px; }
.contact-card p { opacity: .92; max-width: 520px; margin: 0 auto 26px; }
.contact-card .btn-primary { background: #fff; color: var(--accent); box-shadow: none; }
.contact-card .btn-primary:hover { box-shadow: 0 12px 30px -8px rgba(0,0,0,.35); }

/* Footer */
.p-footer { padding: 34px 0; border-top: 1px solid var(--border); color: var(--muted); font-size: .88rem; }
.p-footer .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }

/* Reveal animation */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* Responsive -------------------------------------------------------------- */
@media (max-width: 820px) {
  .choose { grid-template-columns: 1fr; }
  .p-hero .wrap { grid-template-columns: 1fr; text-align: center; }
  .p-avatar { margin: 0 auto; }
  .p-hero .actions, .p-hero .socials { justify-content: center; }
  .about-grid { grid-template-columns: 1fr; }
  .top-bar nav { display: none; }
}