/* =========================================================
   Zeeshan Mehdi Qasimi — Portfolio
   Clean Professional Theme
   Python • Data Science • ML • NLP • Analytics
========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Poppins:wght@500;600;700;800&display=swap');

:root{
  --bg:#070d1c;
  --bg-soft:#0d1629;
  --card:rgba(17,29,52,.72);
  --card-solid:#101c31;
  --text:#f8fafc;
  --muted:#a8b4c7;
  --primary:#38bdf8;
  --primary-2:#2563eb;
  --accent:#22d3ee;
  --border:rgba(148,163,184,.16);
  --shadow:0 24px 70px rgba(0,0,0,.28);
  --radius:24px;
  --container:1180px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:88px}
body{
  font-family:'Inter',sans-serif;
  background:
    radial-gradient(circle at 10% 10%,rgba(37,99,235,.12),transparent 28%),
    radial-gradient(circle at 90% 30%,rgba(34,211,238,.08),transparent 25%),
    var(--bg);
  color:var(--text);
  line-height:1.7;
  overflow-x:hidden;
}
body.light-mode{
  --bg:#f4f8fc;
  --bg-soft:#eaf2fb;
  --card:rgba(255,255,255,.82);
  --card-solid:#fff;
  --text:#10213a;
  --muted:#52657f;
  --border:rgba(15,23,42,.10);
  --shadow:0 20px 60px rgba(15,23,42,.10);
}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit}
button{border:0}
img{max-width:100%;display:block}
.container{width:min(var(--container),calc(100% - 40px));margin:auto}
.section{padding:110px 0;position:relative}
.section-title{
  font-family:'Poppins',sans-serif;
  text-align:center;
  font-size:clamp(2.2rem,4vw,3.3rem);
  line-height:1.15;
  margin-bottom:18px;
  background:linear-gradient(90deg,#60a5fa,#22d3ee);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.section-subtitle{
  max-width:720px;
  margin:0 auto 58px;
  text-align:center;
  color:var(--muted);
}

/* Loader */
#loader{
  position:fixed;inset:0;z-index:99999;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  background:#050a16;
  transition:opacity .45s,visibility .45s;
}
#loader.is-hidden{opacity:0;visibility:hidden}
.spinner{
  width:58px;height:58px;border-radius:50%;
  border:5px solid rgba(255,255,255,.12);
  border-top-color:var(--primary);
  animation:spin 1s linear infinite;
  margin-bottom:18px;
}
#loader h2{font:600 18px 'Poppins',sans-serif;color:#e2e8f0}
@keyframes spin{to{transform:rotate(360deg)}}

/* Progress */
#progressBar{
  position:fixed;top:0;left:0;width:0;height:4px;z-index:10000;
  background:linear-gradient(90deg,var(--primary-2),var(--accent));
}

/* Particles */
#particles-js{
  position:fixed;inset:0;z-index:-2;pointer-events:none;opacity:.32;
}

/* Header */
header{
  position:fixed;top:0;left:0;right:0;z-index:9999;
  background:rgba(7,13,28,.72);
  backdrop-filter:blur(18px);
  border-bottom:1px solid transparent;
  transition:.3s;
}
body.light-mode header{background:rgba(244,248,252,.78)}
header.scrolled{border-color:var(--border);box-shadow:0 10px 40px rgba(0,0,0,.12)}
header .container{
  min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.logo{font:800 27px 'Poppins',sans-serif;color:var(--primary);letter-spacing:-1px}
.nav-links{display:flex;align-items:center;gap:30px;list-style:none}
.nav-links a{
  color:var(--muted);font-weight:600;font-size:14px;position:relative;transition:.25s;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:-8px;width:0;height:2px;
  background:linear-gradient(90deg,var(--primary),var(--accent));transition:.25s;
}
.nav-links a:hover,.nav-links a.active{color:var(--text)}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.header-right{display:flex;align-items:center;gap:12px}
#theme-toggle,.menu-btn{
  width:42px;height:42px;border-radius:12px;
  display:grid;place-items:center;cursor:pointer;
  background:var(--card);color:var(--text);border:1px solid var(--border);
}
.menu-btn{display:none}

/* Hero */
.hero{
  min-height:100vh;display:flex;align-items:center;
  padding:140px 0 90px;position:relative;overflow:hidden;
  background:
    radial-gradient(circle at 12% 18%,rgba(37,99,235,.25),transparent 30%),
    radial-gradient(circle at 85% 70%,rgba(6,182,212,.15),transparent 28%),
    linear-gradient(180deg,#050b18,#0b1427);
}
body.light-mode .hero{background:linear-gradient(180deg,#eef6ff,#f7fbff)}
.hero-container{display:grid;grid-template-columns:1.08fr .92fr;align-items:center;gap:70px}
.hero-subtitle{color:var(--primary);font-weight:700;margin-bottom:18px}
.hero h1{
  font:800 clamp(2.8rem,5.5vw,5rem)/1.08 'Poppins',sans-serif;
  letter-spacing:-2px;margin-bottom:18px;
}
.hero h1 span{display:block;background:linear-gradient(90deg,#60a5fa,#22d3ee);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero h2{font:700 clamp(1.4rem,2.4vw,2rem) 'Poppins',sans-serif;min-height:44px;color:#dbeafe;margin-bottom:20px}
body.light-mode .hero h2{color:#19304f}
.hero-description{max-width:700px;color:var(--muted);font-size:17px}
.hero-buttons{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 22px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-height:50px;padding:13px 23px;border-radius:14px;
  background:linear-gradient(135deg,var(--primary-2),var(--accent));
  color:#fff;font-weight:700;cursor:pointer;
  box-shadow:0 14px 35px rgba(37,99,235,.22);
  transition:transform .25s,box-shadow .25s,opacity .25s;
}
.btn:hover{transform:translateY(-3px);box-shadow:0 18px 40px rgba(37,99,235,.32)}
.btn.secondary{background:transparent;border:1px solid rgba(56,189,248,.45);box-shadow:none}
.btn:disabled{opacity:.65;cursor:not-allowed;transform:none}
.social-icons{display:flex;gap:10px}
.social-icons a,.footer-social a{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:var(--card);border:1px solid var(--border);color:var(--muted);
  transition:.25s;
}
.social-icons a:hover,.footer-social a:hover{color:#fff;transform:translateY(-3px);background:linear-gradient(135deg,var(--primary-2),var(--accent))}
.hero-image{text-align:center}
.image-box{
  width:min(430px,90vw);aspect-ratio:1;margin:auto;border-radius:50%;
  padding:10px;position:relative;
  background:linear-gradient(135deg,var(--primary-2),var(--accent));
  box-shadow:0 0 80px rgba(56,189,248,.25);
  animation:float 5s ease-in-out infinite;
}
.image-box::before{
  content:"";position:absolute;inset:-22px;border-radius:50%;
  background:linear-gradient(135deg,rgba(59,130,246,.25),rgba(34,211,238,.10));
  filter:blur(24px);z-index:-1;
}
.image-box img{width:100%;height:100%;object-fit:cover;border-radius:50%;border:5px solid rgba(255,255,255,.10)}
@keyframes float{50%{transform:translateY(-12px)}}

/* Cards */
.about .container{display:grid;grid-template-columns:.75fr 1.25fr;gap:70px;align-items:center}
.about-image img{width:min(360px,100%);margin:auto;border-radius:28px;border:1px solid var(--border);box-shadow:var(--shadow)}
.about-content p{color:var(--muted);margin-bottom:20px}
.about-info{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:28px}
.about-info>div,.skill-category,.achievement-card,.certificate-card,.contact-form,.contact-info,.timeline-content,.project-card,.tool-card{
  background:var(--card);backdrop-filter:blur(16px);border:1px solid var(--border);
  border-radius:var(--radius);box-shadow:var(--shadow);
}
.about-info>div{padding:18px}
.about-info span{display:block;color:var(--muted);font-size:13px;margin-bottom:5px}
.about-info h4{font-size:15px;word-break:break-word}

/* Achievements */
.achievement-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.achievement-card{padding:34px 20px;text-align:center;transition:.3s;position:relative;overflow:hidden}
.achievement-card::before{content:"";position:absolute;width:140px;height:140px;right:-80px;top:-80px;border-radius:50%;background:rgba(56,189,248,.10)}
.achievement-card:hover{transform:translateY(-8px);border-color:rgba(56,189,248,.35)}
.achievement-card i{font-size:38px;color:var(--primary);margin-bottom:16px}
.achievement-card h3{font:800 34px 'Poppins',sans-serif;color:var(--text);margin-bottom:4px}
.achievement-card p{color:var(--muted);font-size:14px}

/* ========================================
   SKILLS SECTION - WITH PROGRESS BARS
   ======================================== */
.skills-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}

.skill-category {
    padding: 28px;
}

.skill-category h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    font: 700 20px 'Poppins', sans-serif;
    margin-bottom: 28px;
    color: var(--text);
}

.skill-category h3 i {
    color: var(--primary);
}

/* Skill tags (flat list, no unfalsifiable percentages) */
.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skill-pill {
    display: inline-flex;
    align-items: center;
    padding: 8px 16px;
    border-radius: 50px;
    background: #1e293b;
    border: 1px solid #334155;
    color: #e2e8f0;
    font-size: 13px;
    font-weight: 600;
    transition: .25s;
}

.skill-pill:hover {
    transform: translateY(-3px);
    border-color: rgba(56,189,248,.45);
    color: var(--primary);
}

/* Tools */
.tools-section{margin-top:65px}
.tools-section>h3{text-align:center;font:700 28px 'Poppins',sans-serif;margin-bottom:28px}
.tools-grid{display:grid;grid-template-columns:repeat(8,1fr);gap:14px}
.tool-card{padding:20px 10px;text-align:center;transition:.25s}
.tool-card i{display:block;color:var(--primary);font-size:30px;margin-bottom:10px}
.tool-card span{font-size:13px;color:var(--muted);font-weight:600}
.tool-card:hover{transform:translateY(-6px);border-color:rgba(56,189,248,.35)}

/* Projects */
.projects{background:linear-gradient(180deg,#0a1324,#070d1c)}
.projects-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.project-card{overflow:hidden;position:relative;transition:.3s}
.project-card:hover{transform:translateY(-8px);border-color:rgba(56,189,248,.35)}
.project-number{
  position:absolute;top:15px;left:15px;z-index:3;width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;background:rgba(2,6,23,.78);color:#fff;font-size:12px;font-weight:800;
  border:1px solid rgba(255,255,255,.16)
}
.project-image{height:210px;position:relative;overflow:hidden;background:linear-gradient(135deg,#10254b,#0b6474)}
.project-image img{width:100%;height:100%;object-fit:cover;transition:.5s}
.project-card:hover .project-image img{transform:scale(1.05)}
.project-image::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent,rgba(2,6,23,.82))}
.project-category{
  position:absolute;z-index:2;left:14px;bottom:14px;padding:6px 10px;border-radius:99px;
  background:rgba(2,6,23,.75);border:1px solid rgba(255,255,255,.15);font-size:10px;font-weight:800;letter-spacing:.7px
}
.project-content{padding:24px}
.project-content h3{font:700 20px 'Poppins',sans-serif;margin-bottom:10px}
.project-content p{color:var(--muted);font-size:14px;margin-bottom:18px}
.tech-stack{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:20px}
.tech-stack span{padding:6px 10px;border-radius:99px;background:rgba(56,189,248,.08);color:var(--primary);font-size:11px;font-weight:700}
.project-buttons{display:flex;gap:10px}
.project-buttons .btn{width:100%;min-height:44px;padding:10px 15px;font-size:13px}

/* Education */
.timeline{max-width:900px;margin:55px auto 0;position:relative;padding-left:32px}
.timeline::before{content:"";position:absolute;left:7px;top:0;bottom:0;width:3px;border-radius:99px;background:linear-gradient(var(--primary-2),var(--accent))}
.timeline-item{position:relative;margin-bottom:28px}
.timeline-item::before{content:"";position:absolute;left:-32px;top:32px;width:14px;height:14px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 5px rgba(34,211,238,.12)}
.timeline-content{padding:30px}
.timeline-content .year{display:inline-block;padding:6px 12px;border-radius:99px;background:rgba(56,189,248,.09);color:var(--primary);font-size:12px;font-weight:700;margin-bottom:12px}
.timeline-content h3{font:700 24px 'Poppins',sans-serif}
.timeline-content h4{color:var(--primary);margin:5px 0 14px}
.timeline-content p{color:var(--muted);margin-bottom:15px}
.cgpa{display:inline-block;padding:7px 12px;border-radius:99px;background:rgba(34,211,238,.08);color:var(--muted);font-size:13px}
.cgpa strong{color:var(--accent)}

/* Certificates */
.certificate-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.certificate-card{padding:30px 20px;text-align:center;transition:.3s}
.certificate-card:hover{transform:translateY(-7px);border-color:rgba(56,189,248,.35)}
.certificate-card img{transition:transform 0.3s}
.certificate-card img:hover{transform:scale(1.02)}
.certificate-card i{font-size:40px;color:#fbbf24;margin-bottom:16px}
.certificate-card h3{font:700 18px 'Poppins',sans-serif;margin-bottom:6px}
.certificate-card p{color:var(--muted);font-size:14px}

/* Contact */
.contact-container{display:grid;grid-template-columns:.8fr 1.2fr;gap:24px}
.contact-info,.contact-form{padding:34px}
.contact-info h3{font:700 25px 'Poppins',sans-serif;margin-bottom:10px}
.contact-info>p{color:var(--muted);margin-bottom:24px}
.contact-item{display:flex;gap:12px;align-items:center;padding:12px 0;color:var(--muted);border-bottom:1px solid var(--border)}
.contact-item:last-child{border-bottom:0}
.contact-item i{width:24px;color:var(--primary)}
.contact-form form{display:grid;gap:14px}
.contact-form input,.contact-form textarea{
  width:100%;border:1px solid var(--border);border-radius:14px;background:rgba(2,6,23,.28);
  color:var(--text);padding:14px 15px;outline:none;resize:vertical;transition:.25s
}
body.light-mode .contact-form input,body.light-mode .contact-form textarea{background:#f8fbff}
.contact-form input:focus,.contact-form textarea:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(56,189,248,.08)}
.contact-form .btn{width:100%}

/* Footer */
footer{padding:55px 0 30px;border-top:1px solid var(--border);text-align:center;background:#050a16}
footer h3{font:700 23px 'Poppins',sans-serif}
footer p{color:var(--muted);margin:7px 0 18px}
.footer-social{display:flex;justify-content:center;gap:10px;margin-bottom:20px}
.copyright{font-size:13px}

/* Floating controls */
.whatsapp{
  position:fixed;right:24px;bottom:24px;z-index:1000;width:54px;height:54px;border-radius:50%;
  display:grid;place-items:center;background:#22c55e;color:#fff;font-size:25px;
  box-shadow:0 12px 30px rgba(34,197,94,.3);transition:.25s
}
.whatsapp:hover{transform:translateY(-4px) scale(1.04)}
#backToTop{
  position:fixed;right:24px;bottom:90px;z-index:1000;width:44px;height:44px;border-radius:50%;
  display:none;place-items:center;background:var(--card-solid);color:var(--text);
  border:1px solid var(--border);cursor:pointer;box-shadow:var(--shadow)
}
.cursor{
  position:fixed;z-index:10001;width:12px;height:12px;border-radius:50%;pointer-events:none;
  background:var(--primary);box-shadow:0 0 20px var(--primary);transform:translate(-50%,-50%);
  opacity:0;transition:opacity .2s
}

/* WhatsApp additions */
.whatsapp-contact-item {
    text-decoration: none;
    cursor: pointer;
}
.whatsapp-float {
    position: fixed;
    right: 22px;
    bottom: 22px;
    width: 54px;
    height: 54px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: #25D366;
    color: #fff;
    font-size: 12px;
    font-weight: 800;
    box-shadow: 0 12px 30px rgba(0,0,0,.28);
    z-index: 900;
    transition: transform .2s ease, box-shadow .2s ease;
}
.whatsapp-float:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 34px rgba(0,0,0,.35);
}
@media (max-width: 650px) {
    .whatsapp-float {
        right: 15px;
        bottom: 15px;
        width: 50px;
        height: 50px;
    }
}

.contact-status { min-height:20px; margin-bottom:10px; font-size:13px; }
.contact-status.success { color:#4ade80; }
.contact-status.error { color:#f87171; }
.contact-form button:disabled { opacity:.65; cursor:wait; }

/* Responsive */
@media (max-width:1000px){
  .hero-container,.about .container,.contact-container{grid-template-columns:1fr}
  .hero{text-align:center}.hero-description{margin:auto}.hero-buttons,.social-icons{justify-content:center}
  .hero-image{order:-1}.image-box{width:min(330px,75vw)}
  .achievement-grid{grid-template-columns:repeat(2,1fr)}
  .certificate-grid{grid-template-columns:repeat(2,1fr)}
  .skills-container{grid-template-columns:1fr}
  .tools-grid{grid-template-columns:repeat(4,1fr)}
  .projects-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:760px){
  .container{width:min(var(--container),calc(100% - 28px))}
  .section{padding:85px 0}
  .menu-btn{display:grid}
  nav{position:absolute;top:78px;left:14px;right:14px}
  .nav-links{
    display:none;flex-direction:column;align-items:stretch;gap:0;padding:12px;
    background:var(--card-solid);border:1px solid var(--border);border-radius:18px;box-shadow:var(--shadow)
  }
  .nav-links.active{display:flex}
  .nav-links a{display:block;padding:12px 10px}
  .nav-links a::after{display:none}
  .header-right{margin-left:auto}
  .hero h1{letter-spacing:-1px}
  .about-info{grid-template-columns:1fr}
  .projects-grid{grid-template-columns:1fr}
  .tools-grid{grid-template-columns:repeat(2,1fr)}
  .certificate-grid{grid-template-columns:1fr}
}
@media (max-width:480px){
  .achievement-grid{grid-template-columns:1fr}
  .hero-buttons{flex-direction:column}.hero-buttons .btn{width:100%}
  .contact-info,.contact-form{padding:24px}
  .whatsapp{right:16px;bottom:16px}
  #backToTop{right:18px;bottom:82px}
}
@media (pointer:coarse){.cursor{display:none}}