/* ============================================================
   PREM NAWALE — PORTFOLIO STYLESHEET
   File: css/style.css

   TABLE OF CONTENTS
   1.  CSS Variables  ← change colours here
   2.  Reset & Base
   3.  Custom Cursor
   4.  Navbar
   5.  Scroll Reveal Animations
   6.  Layout Helpers & Shared Components
   7.  Hero Section
   8.  Stats Strip
   9.  About Section
   10. Tech Stack Section
   11. Experience / Timeline
   12. Projects Section
   13. Certifications Section
   14. GitHub Section
   15. Achievements Section
   16. Contact Section
   17. Footer
   18. Responsive (Mobile / Tablet)
============================================================ */


/* ============================================================
   1. CSS VARIABLES
   ▶ Change --blue or --green to retheme the whole site
============================================================ */
:root {
  --bg:        #0f172a;
  --bg2:       #111827;
  --bg3:       #1e293b;
  --card:      rgba(17, 24, 39, 0.85);
  --glass:     rgba(255, 255, 255, 0.04);
  --blue:      #3b82f6;
  --blue-d:    #2563eb;
  --blue-glow: rgba(59, 130, 246, 0.25);
  --green:     #22c55e;
  --text:      #e5e7eb;
  --text2:     #9ca3af;
  --text3:     #4b5563;
  --border:    rgba(255, 255, 255, 0.07);
  --border-h:  rgba(59, 130, 246, 0.4);
  --r:         12px;
  --r2:        20px;
  --nav-h:     68px;
  --tr:        all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}


/* ============================================================
   2. RESET & BASE
============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  overflow-x: hidden;
  cursor: none;
}
body::before {
  content: '';
  position: fixed; inset: 0; z-index: 0;
  background:
    radial-gradient(ellipse 80% 50% at 20% 10%, rgba(59,130,246,0.08) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 80%, rgba(34,197,94,0.05) 0%, transparent 50%);
  pointer-events: none;
}
#bg-canvas { position: fixed; inset: 0; z-index: 0; opacity: 0.3; pointer-events: none; }
::-webkit-scrollbar       { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--blue-d); border-radius: 4px; }


/* ============================================================
   3. CUSTOM CURSOR
============================================================ */
#cur {
  position: fixed; z-index: 9999;
  width: 8px; height: 8px;
  background: var(--blue); border-radius: 50%;
  pointer-events: none; transform: translate(-50%, -50%);
  mix-blend-mode: screen;
}
#cur-ring {
  position: fixed; z-index: 9998;
  width: 32px; height: 32px;
  border: 1px solid rgba(59,130,246,0.5); border-radius: 50%;
  pointer-events: none; transform: translate(-50%, -50%);
  transition: width .3s, height .3s, border-color .3s;
}
body:has(a:hover) #cur-ring,
body:has(button:hover) #cur-ring { width: 48px; height: 48px; border-color: var(--blue); }


/* ============================================================
   4. NAVBAR
============================================================ */
nav {
  position: fixed; top: 0; width: 100%; z-index: 100;
  height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 max(40px, calc((100vw - 1200px) / 2));
  background: rgba(15,23,42,0.8);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav-logo {
  font-size: 18px; font-weight: 700; color: var(--text);
  text-decoration: none; display: flex; align-items: center; gap: 8px;
}
.nav-logo .dot {
  width: 8px; height: 8px; background: var(--blue);
  border-radius: 50%; box-shadow: 0 0 10px var(--blue);
  animation: breathe 2s ease-in-out infinite;
}
@keyframes breathe {
  0%,100% { opacity:1; transform:scale(1); }
  50%      { opacity:.6; transform:scale(0.8); }
}
.nav-links { display: flex; gap: 2px; list-style: none; }
.nav-links a {
  padding: 7px 14px; border-radius: 8px;
  font-size: 13.5px; font-weight: 500; color: var(--text2);
  text-decoration: none; transition: var(--tr);
}
.nav-links a:hover,
.nav-links a.active { color: var(--text); background: var(--glass); }
.nav-links a.active  { color: var(--blue); }
.nav-cta {
  background: var(--blue); color: #fff;
  padding: 9px 20px; border-radius: 8px;
  font-size: 13.5px; font-weight: 600;
  text-decoration: none; border: none; cursor: none;
  transition: var(--tr); display: flex; align-items: center; gap: 6px;
}
.nav-cta:hover { background: var(--blue-d); transform: translateY(-1px); box-shadow: 0 4px 20px var(--blue-glow); }
.hamburger {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; background: none; border: none; padding: 8px;
}
.hamburger span { display: block; width: 22px; height: 2px; background: var(--text2); border-radius: 2px; }
.mob-nav {
  display: none; position: fixed; inset: 0; z-index: 99;
  background: rgba(15,23,42,0.97); backdrop-filter: blur(20px);
  flex-direction: column; align-items: center; justify-content: center; gap: 28px;
}
.mob-nav.open { display: flex; }
.mob-nav a { font-size: 28px; font-weight: 700; color: var(--text); text-decoration: none; transition: color .2s; }
.mob-nav a:hover { color: var(--blue); }
.mob-close { position: absolute; top: 24px; right: 28px; background: none; border: none; color: var(--text2); font-size: 26px; cursor: none; }


/* ============================================================
   5. SCROLL REVEAL ANIMATIONS
   Sections are visible by default (safety fallback).
   When JS loads OK, .js-ready is added to <html>,
   which enables the slide-up entrance animations.
============================================================ */
[data-r]       { opacity: 1; transform: none; transition: opacity .65s ease, transform .65s ease; }
[data-r].vis   { opacity: 1; transform: none; }
.js-ready [data-r]     { opacity: 0; transform: translateY(28px); }
.js-ready [data-r].vis { opacity: 1; transform: none; }

/* Stagger delays */
[data-r][data-d="1"] { transition-delay: .08s; }
[data-r][data-d="2"] { transition-delay: .16s; }
[data-r][data-d="3"] { transition-delay: .24s; }
[data-r][data-d="4"] { transition-delay: .32s; }
[data-r][data-d="5"] { transition-delay: .40s; }
[data-r][data-d="6"] { transition-delay: .48s; }

@keyframes slideDown { from{opacity:0;transform:translateY(-16px)} to{opacity:1;transform:none} }
@keyframes slideUp   { from{opacity:0;transform:translateY(24px)}  to{opacity:1;transform:none} }
@keyframes float3d {
  0%,100% { transform: rotateX(4deg) rotateY(-8deg) translateY(0); }
  33%     { transform: rotateX(-3deg) rotateY(6deg) translateY(-8px); }
  66%     { transform: rotateX(6deg) rotateY(-4deg) translateY(-4px); }
}


/* ============================================================
   6. LAYOUT HELPERS & SHARED COMPONENTS
============================================================ */
.wrap   { max-width: 1200px; margin: 0 auto; padding: 0 40px; position: relative; z-index: 2; }
section { padding: 100px 0; position: relative; z-index: 2; }
.bg-alt { background: var(--bg2); }
.glass-divider {
  position: relative; z-index: 2; height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
}
.sec-label {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: 'Fira Code', monospace; font-size: 11.5px; color: var(--blue);
  letter-spacing: .14em; text-transform: uppercase;
  background: rgba(59,130,246,0.1); border: 1px solid rgba(59,130,246,0.2);
  padding: 5px 14px; border-radius: 100px; margin-bottom: 18px;
}
.sec-title { font-size: clamp(32px, 5vw, 48px); font-weight: 800; line-height: 1.15; letter-spacing: -1px; color: var(--text); margin-bottom: 16px; }
.sec-sub   { font-size: 16px; color: var(--text2); max-width: 560px; line-height: 1.7; margin-bottom: 56px; }
.btn-p {
  background: var(--blue); color: #fff; padding: 13px 28px; border-radius: 10px;
  font-size: 14.5px; font-weight: 600; text-decoration: none; border: none; cursor: none;
  transition: var(--tr); display: inline-flex; align-items: center; gap: 8px;
}
.btn-p:hover { background: var(--blue-d); transform: translateY(-2px); box-shadow: 0 8px 30px var(--blue-glow); }
.btn-o {
  background: var(--glass); color: var(--text); padding: 13px 28px; border-radius: 10px;
  font-size: 14.5px; font-weight: 600; border: 1px solid var(--border);
  text-decoration: none; cursor: none; transition: var(--tr);
  display: inline-flex; align-items: center; gap: 8px;
}
.btn-o:hover { border-color: var(--blue); color: var(--blue); transform: translateY(-2px); }
.soc {
  width: 40px; height: 40px; border-radius: 10px;
  border: 1px solid var(--border); background: var(--glass);
  display: flex; align-items: center; justify-content: center;
  color: var(--text2); text-decoration: none; transition: var(--tr);
}
.soc:hover { border-color: var(--blue); color: var(--blue); transform: translateY(-3px); background: rgba(59,130,246,0.08); }
.soc svg { width: 17px; height: 17px; }
.p-tag {
  font-family: 'Fira Code', monospace; font-size: 10.5px;
  background: rgba(59,130,246,0.08); border: 1px solid rgba(59,130,246,0.18);
  color: var(--blue); padding: 3px 10px; border-radius: 6px;
}
.text-bright { color: var(--text); font-weight: 600; }
.text-blue   { color: var(--blue); font-weight: 600; }
#btt {
  position: fixed; bottom: 28px; right: 28px; z-index: 900;
  width: 44px; height: 44px; border-radius: 10px;
  background: var(--blue); color: #fff; border: none; cursor: none;
  display: flex; align-items: center; justify-content: center; font-size: 18px;
  opacity: 0; transform: translateY(20px); transition: var(--tr);
  box-shadow: 0 4px 20px var(--blue-glow);
}
#btt.vis    { opacity: 1; transform: none; }
#btt:hover  { transform: translateY(-4px); }


/* ============================================================
   7. HERO SECTION
============================================================ */
#hero        { min-height: 100vh; display: flex; align-items: center; padding-top: var(--nav-h); }
.hero-inner  { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; width: 100%; }
.hero-badge  {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--glass); border: 1px solid var(--border);
  border-radius: 100px; padding: 8px 18px; font-size: 13px; color: var(--text2);
  margin-bottom: 28px; animation: slideDown .8s ease both;
}
.hero-badge .dot-g { width: 7px; height: 7px; background: var(--green); border-radius: 50%; box-shadow: 0 0 8px var(--green); animation: breathe 2s infinite; }
.hero-name  { font-size: clamp(48px, 7vw, 80px); font-weight: 900; line-height: 1; letter-spacing: -2.5px; color: var(--text); margin-bottom: 16px; animation: slideUp .9s .1s ease both; }
.hero-name .blue { color: var(--blue); }
.hero-role  { font-size: clamp(18px, 2.5vw, 22px); font-weight: 500; color: var(--text2); margin-bottom: 24px; animation: slideUp .9s .2s ease both; min-height: 32px; }
.hero-role .tw { color: var(--blue); font-weight: 600; }
.hero-desc  { font-size: 16px; color: var(--text2); line-height: 1.8; max-width: 480px; margin-bottom: 36px; animation: slideUp .9s .3s ease both; }
.hero-btns  { display: flex; gap: 12px; flex-wrap: wrap; animation: slideUp .9s .4s ease both; margin-bottom: 44px; }
.hero-socials { display: flex; gap: 12px; animation: slideUp .9s .5s ease both; }
.hero-visual  { display: flex; align-items: center; justify-content: center; animation: slideUp .9s .2s ease both; }
.hero-3d-wrap { perspective: 800px; }
.hero-card-3d {
  width: 340px; height: 420px;
  background: var(--card); border: 1px solid var(--border);
  border-radius: 24px; padding: 32px; position: relative; overflow: hidden;
  transform-style: preserve-3d; transition: transform .4s ease;
  animation: float3d 6s ease-in-out infinite;
}
.hero-card-3d::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(59,130,246,0.12) 0%, transparent 60%); pointer-events: none; }
.hero-card-3d::after  { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(59,130,246,0.6), transparent); }
.card-avatar   { width: 72px; height: 72px; border-radius: 50%; background: linear-gradient(135deg, var(--blue), #8b5cf6); display: flex; align-items: center; justify-content: center; font-size: 28px; font-weight: 900; color: #fff; margin-bottom: 18px; box-shadow: 0 8px 32px var(--blue-glow); }
.card-name     { font-size: 22px; font-weight: 700; margin-bottom: 4px; }
.card-role     { font-size: 13.5px; color: var(--blue); margin-bottom: 24px; font-family: 'Fira Code', monospace; font-weight: 500; }
.card-stat-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 24px; }
.card-stat     { background: var(--glass); border: 1px solid var(--border); border-radius: 10px; padding: 14px; }
.card-stat-n   { font-size: 22px; font-weight: 800; color: var(--blue); }
.card-stat-l   { font-size: 10.5px; color: var(--text2); margin-top: 2px; }
.card-skills   { display: flex; flex-wrap: wrap; gap: 7px; }
.card-sk       { font-family: 'Fira Code', monospace; font-size: 10px; background: rgba(59,130,246,0.1); border: 1px solid rgba(59,130,246,0.2); color: var(--blue); padding: 4px 10px; border-radius: 6px; }
.card-glow     { position: absolute; bottom: -60px; right: -60px; width: 200px; height: 200px; background: radial-gradient(circle, rgba(59,130,246,0.15), transparent 70%); pointer-events: none; }


/* ============================================================
   8. STATS STRIP
============================================================ */
.stats-strip       { position: relative; z-index: 2; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); background: var(--card); }
.stats-strip-inner { max-width: 1200px; margin: 0 auto; padding: 0 40px; display: grid; grid-template-columns: repeat(4, 1fr); }
.stat-item { padding: 36px 24px; text-align: center; border-right: 1px solid var(--border); position: relative; }
.stat-item:last-child { border-right: none; }
.stat-item::after { content: ''; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); width: 0; height: 2px; background: var(--blue); transition: width .4s ease; }
.stat-item:hover::after { width: 60%; }
.stat-n { font-size: 40px; font-weight: 900; color: var(--blue); line-height: 1; letter-spacing: -1px; }
.stat-l { font-size: 12.5px; color: var(--text2); margin-top: 6px; }


/* ============================================================
   9. ABOUT SECTION
============================================================ */
.about-grid  { display: grid; grid-template-columns: 1fr 1.1fr; gap: 80px; align-items: start; }
.about-card  { background: var(--card); border: 1px solid var(--border); border-radius: var(--r2); padding: 36px; position: relative; overflow: hidden; }
.about-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, var(--blue), transparent); }
.about-avatar { width: 100px; height: 100px; border-radius: 50%; background: linear-gradient(135deg, var(--blue), #8b5cf6); display: flex; align-items: center; justify-content: center; font-size: 38px; font-weight: 900; color: #fff; margin-bottom: 20px; box-shadow: 0 12px 40px var(--blue-glow); }
.about-card h3   { font-size: 22px; font-weight: 700; margin-bottom: 6px; }
.about-card .role { font-size: 13.5px; color: var(--blue); font-family: 'Fira Code', monospace; margin-bottom: 20px; font-weight: 600; }
.detail-row { display: flex; align-items: center; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--border); font-size: 13.5px; }
.detail-row:last-child { border-bottom: none; }
.detail-row .icon { color: var(--blue); font-size: 14px; width: 20px; text-align: center; }
.detail-row .val  { color: var(--text2); }
.detail-row .val a { color: var(--blue); text-decoration: none; }
.bio-text { color: var(--text2); font-size: 15.5px; line-height: 1.8; margin-bottom: 16px; }
.about-btns { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 32px; }
.about-highlights { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 28px; }
.highlight-card { background: var(--glass); border: 1px solid var(--border); border-radius: var(--r); padding: 18px; transition: var(--tr); }
.highlight-card:hover { border-color: var(--border-h); transform: translateY(-2px); }
.highlight-card .h-icon  { font-size: 22px; margin-bottom: 8px; }
.highlight-card .h-title { font-size: 13.5px; font-weight: 600; margin-bottom: 4px; }
.highlight-card .h-sub   { font-size: 12px; color: var(--text2); }


/* ============================================================
   10. TECH STACK SECTION
============================================================ */
#tech { background: linear-gradient(180deg, var(--bg) 0%, var(--bg2) 100%); }
.tech-categories { display: flex; flex-direction: column; gap: 40px; }
.tech-cat-title  { font-size: 13px; font-family: 'Fira Code', monospace; color: var(--text2); letter-spacing: .1em; text-transform: uppercase; margin-bottom: 20px; }
.tech-row  { display: flex; flex-wrap: wrap; gap: 12px; }
.tech-pill { display: flex; align-items: center; gap: 10px; background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 12px 18px; font-size: 13.5px; font-weight: 500; color: var(--text); transition: var(--tr); position: relative; overflow: hidden; }
.tech-pill::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(59,130,246,0.06), transparent); opacity: 0; transition: opacity .3s; }
.tech-pill:hover { border-color: var(--border-h); transform: translateY(-3px); box-shadow: 0 8px 24px var(--blue-glow); }
.tech-pill:hover::before { opacity: 1; }
.t-icon  { font-size: 20px; }
.t-level { font-size: 10px; font-family: 'Fira Code', monospace; color: var(--blue); background: rgba(59,130,246,0.1); padding: 2px 8px; border-radius: 100px; margin-left: 4px; }


/* ============================================================
   11. EXPERIENCE / TIMELINE
============================================================ */
.exp-timeline { position: relative; padding-left: 32px; }
.exp-timeline::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 1px; background: linear-gradient(to bottom, var(--blue), rgba(59,130,246,0.1)); }
.exp-item { position: relative; margin-bottom: 48px; }
.exp-item::before { content: ''; position: absolute; left: -38px; top: 4px; width: 12px; height: 12px; border-radius: 50%; background: var(--blue); box-shadow: 0 0 0 3px rgba(59,130,246,0.2), 0 0 16px var(--blue); }
.exp-header  { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 14px; flex-wrap: wrap; gap: 12px; }
.exp-title   { font-size: 19px; font-weight: 700; margin-bottom: 4px; }
.exp-company { font-size: 14px; color: var(--blue); font-family: 'Fira Code', monospace; }
.exp-date    { font-size: 12px; font-family: 'Fira Code', monospace; color: var(--text2); background: var(--glass); border: 1px solid var(--border); padding: 5px 14px; border-radius: 100px; white-space: nowrap; }
.exp-card    { background: var(--card); border: 1px solid var(--border); border-radius: var(--r); padding: 24px; transition: var(--tr); }
.exp-card:hover { border-color: var(--border-h); }
.exp-meta    { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 20px; padding-bottom: 18px; border-bottom: 1px solid var(--border); }
.exp-tag     { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-family: 'Fira Code', monospace; color: var(--text2); background: var(--glass); border: 1px solid var(--border); padding: 5px 12px; border-radius: 8px; }
.exp-tag.green { color: var(--green); background: rgba(34,197,94,0.08); border-color: rgba(34,197,94,0.25); }
.exp-points  { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.exp-points li { display: flex; gap: 12px; font-size: 14px; color: var(--text2); line-height: 1.7; }
.exp-points li::before { content: '▸'; color: var(--blue); flex-shrink: 0; margin-top: 2px; }
.exp-tech    { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; padding-top: 18px; border-top: 1px solid var(--border); }
strong.hl    { color: var(--text); font-weight: 600; }


/* ============================================================
   12. PROJECTS SECTION
============================================================ */
.proj-filter { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 40px; }
.pf-btn { padding: 8px 18px; border-radius: 8px; font-size: 13px; font-weight: 500; border: 1px solid var(--border); background: var(--glass); color: var(--text2); cursor: none; transition: var(--tr); font-family: 'Inter', sans-serif; }
.pf-btn:hover, .pf-btn.on { border-color: var(--blue); color: var(--blue); background: rgba(59,130,246,0.08); }
.proj-grid  { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.proj-card  { background: var(--card); border: 1px solid var(--border); border-radius: var(--r2); overflow: hidden; transition: var(--tr); position: relative; display: flex; flex-direction: column; }
.proj-card:hover { border-color: var(--border-h); transform: translateY(-6px); box-shadow: 0 20px 60px rgba(59,130,246,0.12); }
.proj-banner { height: 160px; display: flex; align-items: center; justify-content: center; font-size: 56px; position: relative; overflow: hidden; }
.proj-banner::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to bottom, transparent 40%, rgba(17,24,39,0.9)); }
.b-data { background: linear-gradient(135deg, #0c1445, #1a3a5c); }
.b-ai   { background: linear-gradient(135deg, #0c2340, #1a4060); }
.b-web  { background: linear-gradient(135deg, #0c1a30, #1a2a50); }
.proj-body    { padding: 22px; display: flex; flex-direction: column; flex: 1; }
.proj-head    { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 10px; gap: 8px; }
.proj-name    { font-size: 17px; font-weight: 700; }
.proj-star    { font-size: 11px; color: var(--text2); font-family: 'Fira Code', monospace; }
.proj-desc    { font-size: 13.5px; color: var(--text2); line-height: 1.65; margin-bottom: 16px; flex: 1; }
.proj-tags    { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 18px; }
.proj-metrics { display: flex; gap: 16px; margin-bottom: 18px; }
.pm           { font-size: 12px; color: var(--green); font-family: 'Fira Code', monospace; }
.proj-links   { display: flex; gap: 10px; margin-top: auto; }
.plink { font-size: 12.5px; font-weight: 600; color: var(--text2); text-decoration: none; display: flex; align-items: center; gap: 5px; background: var(--glass); border: 1px solid var(--border); padding: 8px 16px; border-radius: 8px; transition: var(--tr); }
.plink:hover  { color: var(--text); border-color: var(--border-h); transform: translateY(-1px); }


/* ============================================================
   13. CERTIFICATIONS SECTION
============================================================ */
.certs-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.cert-card  { background: var(--card); border: 1px solid var(--border); border-radius: var(--r); padding: 24px; transition: var(--tr); position: relative; overflow: hidden; display: flex; flex-direction: column; }
.cert-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: linear-gradient(90deg, var(--blue-d), var(--blue), #8b5cf6); transform: scaleX(0); transform-origin: left; transition: transform .4s ease; }
.cert-card:hover { border-color: var(--border-h); transform: translateY(-4px); box-shadow: 0 12px 40px var(--blue-glow); }
.cert-card:hover::before { transform: scaleX(1); }
.cert-logo   { font-size: 32px; margin-bottom: 14px; }
.cert-name   { font-size: 15px; font-weight: 700; margin-bottom: 6px; line-height: 1.4; }
.cert-issuer { font-size: 12px; color: var(--blue); font-family: 'Fira Code', monospace; margin-bottom: 10px; text-transform: uppercase; }
.cert-desc   { font-size: 12.5px; color: var(--text2); line-height: 1.6; flex: 1; margin-bottom: 16px; }
.cert-date   { font-size: 11px; font-family: 'Fira Code', monospace; color: var(--text3); }
.cert-badge  { position: absolute; top: 16px; right: 16px; font-size: 10px; font-family: 'Fira Code', monospace; background: rgba(34,197,94,0.1); border: 1px solid rgba(34,197,94,0.3); color: var(--green); padding: 3px 10px; border-radius: 100px; }


/* ============================================================
   14. GITHUB SECTION
============================================================ */
.github-grid   { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.gh-card       { background: var(--card); border: 1px solid var(--border); border-radius: var(--r2); padding: 28px; transition: var(--tr); }
.gh-card:hover { border-color: var(--border-h); }
.gh-card-title { font-size: 15px; font-weight: 600; margin-bottom: 20px; display: flex; align-items: center; gap: 10px; }
.gh-stat-row   { display: flex; gap: 20px; margin-bottom: 24px; flex-wrap: wrap; }
.gh-stat-n     { font-size: 30px; font-weight: 800; color: var(--blue); line-height: 1; }
.gh-stat-l     { font-size: 11px; color: var(--text2); margin-top: 4px; }
.contrib-graph { display: grid; grid-template-columns: repeat(52, 1fr); gap: 2px; }
.cg-cell       { aspect-ratio: 1; border-radius: 2px; transition: transform .2s; }
.cg-cell:hover { transform: scale(1.4); }
.cg-0 { background: #161b22; }
.cg-1 { background: #0e4429; }
.cg-2 { background: #006d32; }
.cg-3 { background: #26a641; }
.cg-4 { background: #39d353; }
.lang-bars  { display: flex; flex-direction: column; gap: 14px; }
.lang-row   { display: flex; flex-direction: column; gap: 6px; }
.lang-head  { display: flex; justify-content: space-between; font-size: 13px; }
.lang-pct   { font-family: 'Fira Code', monospace; font-size: 12px; color: var(--text2); }
.lang-track { height: 4px; background: var(--bg3); border-radius: 4px; overflow: hidden; }
.lang-fill  { height: 100%; border-radius: 4px; width: 0; transition: width 1.4s cubic-bezier(.4,0,.2,1); }


/* ============================================================
   15. ACHIEVEMENTS SECTION
============================================================ */
.ach-grid  { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.ach-card  { background: var(--card); border: 1px solid var(--border); border-radius: var(--r); padding: 24px; transition: var(--tr); }
.ach-card:hover { border-color: var(--border-h); transform: translateY(-4px); }
.ach-icon  { font-size: 32px; margin-bottom: 14px; }
.ach-title { font-size: 16px; font-weight: 700; margin-bottom: 5px; }
.ach-org   { font-size: 11.5px; color: var(--blue); font-family: 'Fira Code', monospace; margin-bottom: 10px; text-transform: uppercase; }
.ach-desc  { font-size: 13px; color: var(--text2); line-height: 1.6; }
.ach-date  { font-size: 11px; color: var(--text3); margin-top: 14px; font-family: 'Fira Code', monospace; }


/* ============================================================
   16. CONTACT SECTION
============================================================ */
.contact-wrapper { background: var(--card); border: 1px solid var(--border); border-radius: var(--r2); overflow: hidden; display: grid; grid-template-columns: 1fr 1.5fr; }
.contact-left    { padding: 48px 40px; background: linear-gradient(135deg, rgba(59,130,246,0.08) 0%, transparent 100%); border-right: 1px solid var(--border); }
.contact-left h3 { font-size: 24px; font-weight: 700; margin-bottom: 8px; }
.contact-left p  { font-size: 14.5px; color: var(--text2); line-height: 1.7; margin-bottom: 32px; }
.cinfo      { display: flex; align-items: center; gap: 14px; margin-bottom: 18px; }
.cinfo-icon { width: 42px; height: 42px; background: rgba(59,130,246,0.1); border: 1px solid rgba(59,130,246,0.2); border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 17px; flex-shrink: 0; }
.cinfo-l    { font-size: 11px; color: var(--text3); font-family: 'Fira Code', monospace; }
.cinfo-v    { font-size: 14px; color: var(--text); font-weight: 500; margin-top: 2px; }
.cinfo-v a  { color: var(--blue); text-decoration: none; }
.contact-socials { display: flex; gap: 10px; margin-top: 32px; }
.contact-right   { padding: 48px 40px; }
.form    { display: flex; flex-direction: column; gap: 18px; }
.form-r  { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.fg      { display: flex; flex-direction: column; gap: 7px; }
.fg label { font-size: 12px; color: var(--text2); font-family: 'Fira Code', monospace; letter-spacing: .05em; }
.fg input, .fg textarea {
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 8px; padding: 13px 16px; color: var(--text);
  font-family: 'Inter', sans-serif; font-size: 14px;
  transition: var(--tr); resize: none; outline: none;
}
.fg input:focus, .fg textarea:focus { border-color: var(--blue); box-shadow: 0 0 0 3px var(--blue-glow); }
.fg textarea { height: 120px; }
.form-success { display: none; background: rgba(34,197,94,0.08); border: 1px solid rgba(34,197,94,0.3); border-radius: 8px; padding: 14px 18px; color: var(--green); font-size: 14px; text-align: center; }


/* ============================================================
   17. FOOTER
============================================================ */
footer        { position: relative; z-index: 2; background: var(--bg); border-top: 1px solid var(--border); padding: 40px 0; }
.footer-inner { max-width: 1200px; margin: 0 auto; padding: 0 40px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 20px; }
.footer-logo  { font-size: 16px; font-weight: 700; display: flex; align-items: center; gap: 8px; }
.f-dot-blue   { width: 8px; height: 8px; background: var(--blue); border-radius: 50%; box-shadow: 0 0 10px var(--blue); animation: breathe 2s infinite; }
.footer-copy  { font-size: 13px; color: var(--text3); }
.footer-status { display: flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--text2); font-family: 'Fira Code', monospace; }
.f-dot        { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 8px var(--green); animation: breathe 2s infinite; }
.footer-socials { display: flex; gap: 10px; }


/* ============================================================
   18. RESPONSIVE
   1024px = tablet  |  768px = mobile
============================================================ */
@media (max-width: 1024px) {
  .wrap, .footer-inner, .stats-strip-inner { padding: 0 24px; }
  nav { padding: 0 24px; }
  .hero-inner  { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .about-grid  { grid-template-columns: 1fr; gap: 40px; }
  .proj-grid   { grid-template-columns: repeat(2, 1fr); }
  .certs-grid  { grid-template-columns: repeat(2, 1fr); }
  .ach-grid    { grid-template-columns: repeat(2, 1fr); }
  .github-grid { grid-template-columns: 1fr; }
  .stats-strip-inner { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .nav-links, .nav-cta { display: none; }
  .hamburger  { display: flex; }
  .proj-grid, .certs-grid, .ach-grid { grid-template-columns: 1fr; }
  .contact-wrapper { grid-template-columns: 1fr; }
  .contact-left    { border-right: none; border-bottom: 1px solid var(--border); }
  .form-r  { grid-template-columns: 1fr; }
  section  { padding: 70px 0; }
}

/* ============================================================
   19. EDUCATION SECTION
============================================================ */
#education { background: var(--bg); }
.edu-timeline { display: flex; flex-direction: column; gap: 32px; position: relative; padding-left: 56px; }
.edu-timeline::before { content: ''; position: absolute; left: 20px; top: 0; bottom: 0; width: 1px; background: linear-gradient(to bottom, var(--blue), rgba(59,130,246,0.1)); }
.edu-item { display: flex; gap: 24px; position: relative; }
.edu-item::before { content: ''; position: absolute; left: -42px; top: 8px; width: 12px; height: 12px; border-radius: 50%; background: var(--blue); box-shadow: 0 0 0 3px rgba(59,130,246,0.2), 0 0 16px var(--blue); }
.edu-icon { font-size: 32px; flex-shrink: 0; margin-top: 4px; }
.edu-content { flex: 1; }
.edu-header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 14px; flex-wrap: wrap; gap: 12px; }
.edu-degree { font-size: 18px; font-weight: 700; margin-bottom: 4px; }
.edu-school { font-size: 13.5px; color: var(--blue); font-family: 'Fira Code', monospace; }
.edu-date   { font-size: 12px; font-family: 'Fira Code', monospace; color: var(--text2); background: var(--glass); border: 1px solid var(--border); padding: 5px 14px; border-radius: 100px; white-space: nowrap; }
.edu-card   { background: var(--card); border: 1px solid var(--border); border-radius: var(--r); padding: 20px 24px; transition: var(--tr); }
.edu-card:hover { border-color: var(--border-h); }
.edu-meta   { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 16px; padding-bottom: 14px; border-bottom: 1px solid var(--border); }
.edu-grade  { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.grade-label { font-size: 11px; font-family: 'Fira Code', monospace; color: var(--text2); text-transform: uppercase; letter-spacing: .08em; }
.grade-val   { font-size: 22px; font-weight: 800; color: var(--blue); }
.edu-desc    { font-size: 13.5px; color: var(--text2); line-height: 1.65; }

/* In-Progress cert badge variant */
.cert-badge.in-prog { background: rgba(234,179,8,0.1); border-color: rgba(234,179,8,0.3); color: #eab308; }

/* Form error message */
.form-error { display: none; background: rgba(239,68,68,0.08); border: 1px solid rgba(239,68,68,0.3); border-radius: 8px; padding: 14px 18px; color: #ef4444; font-size: 14px; text-align: center; }

/* Send button loading state */
#send-btn:disabled { opacity: 0.7; cursor: not-allowed; transform: none !important; }

@media (max-width: 768px) {
  .edu-timeline { padding-left: 32px; }
  .edu-timeline::before { left: 8px; }
  .edu-item::before { left: -30px; }
  .edu-header { flex-direction: column; }
}