/* =========================================================
   TABLE OF CONTENTS
   1. CSS Variables & Reset
   2. Utility Classes
   3. Loader / Scroll Progress / Cursor Glow
   4. Navbar
   5. Hero
   6. About
   7. Skills
   8. Services
   9. Experience Timeline
   10. Projects
   11. Certifications
   12. Testimonials
   13. Statistics
   14. Contact
   15. Footer
   16. Lightbox / Back to top
========================================================= */

/* =========================================================
   1. CSS VARIABLES & RESET
========================================================= */
:root{
  --bg: #0B1120;
  --bg-alt: #0f1626;
  --primary: #3B82F6;
  --secondary: #8B5CF6;
  --accent: #06B6D4;
  --text-light: #F8FAFC;
  --text-gray: #94A3B8;
  --card-bg: rgba(255,255,255,0.04);
  --card-border: rgba(255,255,255,0.08);
  --glass-blur: 16px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Inter', sans-serif;
  --shadow-glow: 0 0 40px rgba(59,130,246,0.25);
  --transition: 0.35s cubic-bezier(0.4,0,0.2,1);
}

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

html{ scroll-behavior: smooth; }

body{
  background: var(--bg);
  color: var(--text-light);
  font-family: var(--font-body);
  overflow-x: hidden;
  line-height: 1.6;
}

h1,h2,h3,h4,h5{ font-family: var(--font-heading); font-weight:600; color: var(--text-light); }

a{ text-decoration:none; color:inherit; }
ul{ list-style:none; }
img{ max-width:100%; display:block; }
button{ font-family:var(--font-body); cursor:pointer; border:none; background:none; }

::selection{ background: var(--primary); color:#fff; }

/* custom scrollbar */
::-webkit-scrollbar{ width:10px; }
::-webkit-scrollbar-track{ background: var(--bg); }
::-webkit-scrollbar-thumb{ background: var(--gradient-primary); border-radius:10px; }

@media (prefers-reduced-motion: reduce){
  *{ animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

/* =========================================================
   2. UTILITY CLASSES
========================================================= */
.section-head{ text-align:center; max-width:640px; margin:0 auto 60px; padding: 0 20px; }
.section-tag{
  display:inline-block;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
  font-weight: 600;
}
.section-title{ font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight:700; }
.section-title::after{
  content:"";
  display:block;
  width:70px; height:4px;
  margin:18px auto 0;
  border-radius: 10px;
  background: var(--gradient-primary);
}

.btn{
  display:inline-flex; align-items:center; gap:10px;
  padding: 14px 28px;
  border-radius: 50px;
  font-weight:600;
  font-size:0.95rem;
  transition: var(--transition);
  position:relative;
  overflow:hidden;
  isolation:isolate;
}
.btn-primary{ background: var(--gradient-primary); color:#fff; box-shadow: var(--shadow-glow); }
.btn-primary:hover{ transform: translateY(-4px); box-shadow: 0 10px 30px rgba(139,92,246,0.4); }
.btn-outline{ border:1.5px solid var(--card-border); color: var(--text-light); backdrop-filter: blur(10px); background: var(--card-bg); }
.btn-outline:hover{ border-color: var(--primary); transform: translateY(-4px); background: rgba(59,130,246,0.1); }

/* button ripple */
.btn::before{
  content:"";
  position:absolute; inset:0;
  background: radial-gradient(circle, rgba(255,255,255,0.35) 0%, transparent 60%);
  opacity:0; transform: scale(0);
  transition: transform 0.5s ease, opacity 0.5s ease;
  z-index:-1;
}
.btn:active::before{ opacity:1; transform: scale(2.5); transition: 0s; }

section{ padding: 120px 8vw; position:relative; }

.glass{
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border-radius: var(--radius-md);
}

/* =========================================================
   3. LOADER / SCROLL PROGRESS / CURSOR GLOW
========================================================= */
.loader{
  position:fixed; inset:0; z-index:9999;
  background: var(--bg);
  display:flex; align-items:center; justify-content:center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}
.loader.hide{ opacity:0; visibility:hidden; }
.loader-inner{ text-align:center; }
.loader-logo{ font-family: var(--font-heading); font-size:2.2rem; font-weight:700; letter-spacing:2px; }
.loader-logo .dot{ color: var(--accent); }
.loader-bar{ width:180px; height:4px; background: rgba(255,255,255,0.08); border-radius:10px; margin-top:20px; overflow:hidden; }
.loader-bar span{ display:block; height:100%; width:0%; background: var(--gradient-primary); animation: loaderFill 1.4s ease forwards; border-radius:10px; }
@keyframes loaderFill{ to{ width:100%; } }

.scroll-progress{
  position:fixed; top:0; left:0; height:3px;
  background: var(--gradient-accent);
  width:0%; z-index:9998;
  transition: width 0.1s ease;
}

.cursor-glow{
  position:fixed; width:400px; height:400px;
  border-radius:50%;
  background: radial-gradient(circle, rgba(59,130,246,0.12), transparent 70%);
  pointer-events:none;
  transform: translate(-50%,-50%);
  z-index:1;
  transition: opacity 0.3s ease;
  display:none;
}

#particles-js{ position:fixed; inset:0; z-index:0; pointer-events:none; opacity:0.5; }

/* =========================================================
   4. NAVBAR
========================================================= */
.navbar{
  position:fixed; top:0; left:0; width:100%; z-index:1000;
  padding: 22px 8vw;
  transition: var(--transition);
}
.navbar.scrolled{
  padding: 14px 8vw;
  background: rgba(11,17,32,0.75);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--card-border);
}
.nav-container{ display:flex; align-items:center; justify-content:space-between; }
.logo{ font-family: var(--font-heading); font-size:1.4rem; font-weight:700; }
.logo span{ color: var(--accent); }

.nav-links{ display:flex; gap:34px; }
.nav-link{ position:relative; font-size:0.95rem; font-weight:500; color: var(--text-gray); transition: var(--transition); }
.nav-link::after{
  content:""; position:absolute; left:0; bottom:-6px; width:0; height:2px;
  background: var(--gradient-primary); transition: width 0.3s ease;
}
.nav-link:hover, .nav-link.active{ color: var(--text-light); }
.nav-link:hover::after, .nav-link.active::after{ width:100%; }

.hamburger{ display:none; flex-direction:column; gap:5px; z-index:1001; }
.hamburger span{ width:26px; height:2px; background: var(--text-light); transition: var(--transition); border-radius:5px; }
.hamburger.active span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2){ opacity:0; }
.hamburger.active span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }

/* =========================================================
   5. HERO
========================================================= */
.hero{
  min-height:100vh;
  display:flex; align-items:center;
  padding: 140px 8vw 80px;
  position:relative; overflow:hidden;
}
.hero-blobs{ position:absolute; inset:0; z-index:0; overflow:hidden; }
.blob{
  position:absolute; border-radius:50%; filter: blur(90px); opacity:0.35;
  animation: blobMove 14s ease-in-out infinite;
}
.blob-1{ width:420px; height:420px; background: var(--primary); top:-100px; left:-100px; }
.blob-2{ width:380px; height:380px; background: var(--secondary); bottom:-120px; right:-80px; animation-delay:-4s; }
.blob-3{ width:300px; height:300px; background: var(--accent); top:40%; left:40%; animation-delay:-8s; }
@keyframes blobMove{
  0%,100%{ transform: translate(0,0) scale(1); }
  33%{ transform: translate(60px,-40px) scale(1.15); }
  66%{ transform: translate(-50px,50px) scale(0.9); }
}

.hero-container{
  position:relative; z-index:2;
  display:grid; grid-template-columns: 1.1fr 0.9fr;
  gap:60px; align-items:center; width:100%;
  max-width:1300px; margin:0 auto;
}

.hero-greeting{ color: var(--accent); font-weight:600; letter-spacing:2px; text-transform:uppercase; font-size:0.9rem; margin-bottom:10px; }
.hero-name{ font-size: clamp(2.6rem, 6vw, 4.2rem); font-weight:800; line-height:1.1; background: var(--gradient-primary); -webkit-background-clip:text; background-clip:text; color:transparent; }
.hero-role{ font-size: clamp(1.2rem, 2.5vw, 1.8rem); font-weight:500; margin:16px 0 22px; color: var(--text-light); min-height:2.4rem; }
.typed-text{ color: var(--accent); font-weight:700; }
.cursor-blink{ animation: blink 0.8s infinite; color: var(--accent); }
@keyframes blink{ 50%{ opacity:0; } }

.hero-desc{ color: var(--text-gray); max-width:520px; margin-bottom:34px; font-size:1.02rem; }
.hero-buttons{ display:flex; gap:18px; flex-wrap:wrap; margin-bottom:34px; }
.hero-socials{ display:flex; gap:18px; }
.hero-socials a{
  width:44px; height:44px; display:flex; align-items:center; justify-content:center;
  border-radius:50%; border:1px solid var(--card-border); background: var(--card-bg);
  transition: var(--transition); font-size:1.1rem;
}
.hero-socials a:hover{ background: var(--gradient-primary); transform: translateY(-4px); box-shadow: var(--shadow-glow); }

.hero-image{ position:relative; display:flex; align-items:center; justify-content:center; }
.hero-image-glow{
  position:absolute; width:340px; height:340px; border-radius:50%;
  background: var(--gradient-primary); filter: blur(70px); opacity:0.5;
  animation: pulseGlow 4s ease-in-out infinite;
}
@keyframes pulseGlow{ 0%,100%{ opacity:0.4; transform:scale(1); } 50%{ opacity:0.65; transform:scale(1.08); } }
.hero-image-ring{
  position:absolute; width:340px; height:340px; border-radius:50%;
  border: 2px dashed var(--accent); opacity:0.4;
  animation: spin 20s linear infinite;
}
@keyframes spin{ to{ transform: rotate(360deg); } }
.profile-img{
  width:300px; height:300px; border-radius:50%; object-fit:cover;
  border: 4px solid transparent;
  background: linear-gradient(var(--bg),var(--bg)) padding-box, var(--gradient-primary) border-box;
  position:relative; z-index:2; box-shadow: 0 0 60px rgba(59,130,246,0.3);
}
.floating-badge{
  position:absolute; width:56px; height:56px; border-radius:16px;
  display:flex; align-items:center; justify-content:center;
  background: var(--card-bg); border:1px solid var(--card-border);
  backdrop-filter: blur(12px); font-size:1.4rem; z-index:3;
  animation: floatUpDown 4s ease-in-out infinite;
}
.badge-1{ top:10%; left:0%; color: var(--primary); animation-delay:0s; }
.badge-2{ bottom:15%; right:0%; color: var(--accent); animation-delay:1.2s; }
.badge-3{ top:70%; left:-6%; color:#F7DF1E; animation-delay:2.4s; }
@keyframes floatUpDown{ 0%,100%{ transform: translateY(0); } 50%{ transform: translateY(-18px); } }

.scroll-down{
  position:absolute; bottom:30px; left:50%; transform: translateX(-50%);
  width:26px; height:42px; border:2px solid var(--card-border); border-radius:20px;
  display:flex; justify-content:center; padding-top:8px; z-index:2;
}
.scroll-down span{ width:5px; height:8px; background: var(--accent); border-radius:4px; animation: scrollDot 1.6s infinite; }
@keyframes scrollDot{ 0%{ opacity:1; transform: translateY(0);} 100%{ opacity:0; transform: translateY(14px);} }

/* =========================================================
   6. ABOUT
========================================================= */
.about-container{ display:grid; grid-template-columns: 0.9fr 1.1fr; gap:70px; max-width:1300px; margin:0 auto; align-items:start; }
.about-image{ position:relative; }
.about-img-wrap{ border-radius: var(--radius-lg); overflow:hidden; border: 1px solid var(--card-border); }
.about-img-wrap img{ transition: transform 0.6s ease; }
.about-image:hover .about-img-wrap img{ transform: scale(1.05); }
.about-exp-badge{
  position:absolute; bottom:-24px; right:-24px;
  background: var(--gradient-primary); color:#fff;
  padding: 20px 26px; border-radius: var(--radius-md);
  text-align:center; box-shadow: var(--shadow-glow);
}
.about-exp-badge h3{ font-size:2rem; }
.about-exp-badge p{ font-size:0.75rem; line-height:1.2; }

.about-content h3{ font-size:1.5rem; margin-bottom:18px; }
.about-content p{ color: var(--text-gray); margin-bottom:16px; }

.about-stats{ display:grid; grid-template-columns:repeat(4,1fr); gap:16px; margin:30px 0; }
.stat-card{
  padding:20px 12px; text-align:center; border-radius: var(--radius-sm);
  background: var(--card-bg); border:1px solid var(--card-border);
  transition: var(--transition);
}
.stat-card:hover{ transform: translateY(-6px); border-color: var(--primary); }
.stat-card h4{ font-size:1.6rem; color: var(--accent); }
.stat-card p{ font-size:0.8rem; color: var(--text-gray); margin-top:4px; }

.about-tab-buttons{ display:flex; gap:10px; margin-bottom:20px; flex-wrap:wrap; }
.tab-btn{
  padding:10px 20px; border-radius:50px; font-size:0.85rem; font-weight:600;
  background: var(--card-bg); border:1px solid var(--card-border); color: var(--text-gray);
  transition: var(--transition);
}
.tab-btn.active, .tab-btn:hover{ background: var(--gradient-primary); color:#fff; }
.tab-content{ display:none; }
.tab-content.active{ display:block; animation: fadeIn 0.5s ease; }
@keyframes fadeIn{ from{ opacity:0; transform: translateY(10px);} to{ opacity:1; transform: translateY(0);} }

.mini-timeline{ display:flex; flex-direction:column; gap:18px; }
.mini-item{ display:flex; gap:16px; align-items:flex-start; }
.mini-dot{ width:10px; height:10px; border-radius:50%; background: var(--accent); margin-top:6px; flex-shrink:0; box-shadow: 0 0 10px var(--accent); }
.mini-item h5{ font-size:0.95rem; color: var(--text-light); }
.mini-item p{ font-size:0.85rem; color: var(--text-gray); }

/* =========================================================
   7. SKILLS
========================================================= */
.skills-container{ display:grid; grid-template-columns: repeat(3,1fr); gap:30px; max-width:1300px; margin:0 auto; }
.skill-group{
  padding:32px; border-radius: var(--radius-md);
  background: var(--card-bg); border:1px solid var(--card-border);
  transition: var(--transition);
}
.skill-group:hover{ border-color: var(--primary); box-shadow: var(--shadow-glow); transform: translateY(-6px); }
.skill-group h3{ font-size:1.1rem; margin-bottom:22px; display:flex; align-items:center; gap:10px; color: var(--accent); }
.skill-group h3.mt{ margin-top:30px; }
.skill-bar-item{ margin-bottom:20px; }
.skill-bar-label{ display:flex; justify-content:space-between; font-size:0.88rem; margin-bottom:8px; color: var(--text-light); }
.skill-bar-label span:first-child{ display:flex; align-items:center; gap:8px; }
.skill-bar{ height:8px; border-radius:10px; background: rgba(255,255,255,0.07); overflow:hidden; }
.skill-fill{
  height:100%; width:0; border-radius:10px;
  background: var(--gradient-primary);
  transition: width 1.4s cubic-bezier(0.4,0,0.2,1);
  position:relative;
}
.skill-fill::after{
  content:""; position:absolute; inset:0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
  animation: shimmer 2.2s infinite;
}
@keyframes shimmer{ 0%{ transform: translateX(-100%); } 100%{ transform: translateX(100%); } }

.skill-icons-grid{ display:grid; grid-template-columns: repeat(5,1fr); gap:12px; }
.tool-icon{
  aspect-ratio:1; display:flex; align-items:center; justify-content:center;
  border-radius: var(--radius-sm); background: rgba(255,255,255,0.04);
  border:1px solid var(--card-border); font-size:1.3rem; color: var(--text-gray);
  transition: var(--transition);
}
.tool-icon:hover{ color:#fff; background: var(--gradient-primary); transform: translateY(-5px) rotate(-4deg); }

/* =========================================================
   8. SERVICES
========================================================= */
.services-grid{ display:grid; grid-template-columns: repeat(3,1fr); gap:30px; max-width:1300px; margin:0 auto; }
.service-card{
  padding:40px 30px; border-radius: var(--radius-md);
  background: var(--card-bg); border:1px solid var(--card-border);
  transition: var(--transition); position:relative; overflow:hidden;
}
.service-card::before{
  content:""; position:absolute; inset:0; opacity:0;
  background: linear-gradient(160deg, rgba(59,130,246,0.12), rgba(139,92,246,0.12));
  transition: var(--transition);
}
.service-card:hover::before{ opacity:1; }
.service-card:hover{ transform: translateY(-10px); border-color: var(--primary); box-shadow: var(--shadow-glow); }
.service-icon{
  width:60px; height:60px; border-radius:16px; display:flex; align-items:center; justify-content:center;
  background: var(--gradient-primary); font-size:1.5rem; margin-bottom:22px; position:relative; z-index:1;
}
.service-card h3{ margin-bottom:12px; font-size:1.2rem; position:relative; z-index:1; }
.service-card p{ color: var(--text-gray); font-size:0.92rem; margin-bottom:20px; position:relative; z-index:1; }
.learn-more{ color: var(--accent); font-weight:600; font-size:0.88rem; display:inline-flex; align-items:center; gap:8px; position:relative; z-index:1; transition: var(--transition); }
.learn-more:hover{ gap:14px; }

/* =========================================================
   9. EXPERIENCE TIMELINE
========================================================= */
.timeline{ position:relative; max-width:900px; margin:0 auto; padding-left:40px; }
.timeline::before{ content:""; position:absolute; left:9px; top:0; bottom:0; width:2px; background: linear-gradient(var(--primary),var(--secondary),var(--accent)); }
.timeline-item{ position:relative; padding-bottom:50px; padding-left:36px; }
.timeline-item:last-child{ padding-bottom:0; }
.timeline-dot{
  position:absolute; left:-40px; top:4px; width:20px; height:20px; border-radius:50%;
  background: var(--bg); border:3px solid var(--accent); box-shadow: 0 0 14px var(--accent);
}
.timeline-content{ padding:28px 30px; border-radius: var(--radius-md); background: var(--card-bg); border:1px solid var(--card-border); transition: var(--transition); }
.timeline-content:hover{ border-color: var(--primary); transform: translateX(6px); }
.timeline-date{ display:inline-block; padding:4px 14px; border-radius:50px; background: var(--gradient-accent); font-size:0.78rem; font-weight:600; margin-bottom:12px; }
.timeline-content h3{ font-size:1.2rem; }
.timeline-content h4{ color: var(--text-gray); font-weight:500; font-size:0.95rem; margin-bottom:14px; }
.timeline-content ul{ padding-left:18px; }
.timeline-content li{ color: var(--text-gray); font-size:0.9rem; margin-bottom:8px; list-style: disc; }

/* =========================================================
   10. PROJECTS
========================================================= */
.project-filters{ display:flex; justify-content:center; gap:14px; margin-bottom:50px; flex-wrap:wrap; }
.filter-btn{
  padding:10px 24px; border-radius:50px; font-size:0.88rem; font-weight:600;
  background: var(--card-bg); border:1px solid var(--card-border); color: var(--text-gray);
  transition: var(--transition);
}
.filter-btn.active, .filter-btn:hover{ background: var(--gradient-primary); color:#fff; border-color:transparent; }

.projects-grid{ display:grid; grid-template-columns: repeat(3,1fr); gap:30px; max-width:1300px; margin:0 auto; }
.project-card{
  border-radius: var(--radius-md); overflow:hidden; background: var(--card-bg);
  border:1px solid var(--card-border); transition: var(--transition);
}
.project-card:hover{ transform: translateY(-10px); border-color: var(--primary); box-shadow: var(--shadow-glow); }
.project-card.hide{ display:none; }
.project-img{ position:relative; overflow:hidden; aspect-ratio:3/2; }
.project-img img{ width:100%; height:100%; object-fit:cover; transition: transform 0.6s ease; }
.project-card:hover .project-img img{ transform: scale(1.1); }
.project-overlay{
  position:absolute; inset:0; display:flex; align-items:center; justify-content:center; gap:16px;
  background: rgba(11,17,32,0.65); backdrop-filter: blur(6px);
  opacity:0; transition: var(--transition);
}
.project-card:hover .project-overlay{ opacity:1; }
.project-btn{
  width:48px; height:48px; border-radius:50%; display:flex; align-items:center; justify-content:center;
  background: var(--gradient-primary); font-size:1.1rem; transform: translateY(20px); transition: var(--transition);
}
.project-card:hover .project-btn{ transform: translateY(0); }
.project-info{ padding:24px; }
.project-info h3{ font-size:1.15rem; margin-bottom:8px; }
.project-info p{ color: var(--text-gray); font-size:0.9rem; margin-bottom:16px; }
.project-tags{ display:flex; gap:8px; flex-wrap:wrap; }
.project-tags span{ font-size:0.75rem; padding:4px 12px; border-radius:50px; background: rgba(59,130,246,0.12); color: var(--primary); border:1px solid rgba(59,130,246,0.25); }

/* =========================================================
   11. CERTIFICATIONS
========================================================= */
.cert-grid{ display:grid; grid-template-columns: repeat(3,1fr); gap:30px; max-width:1300px; margin:0 auto; }
.cert-card{ border-radius: var(--radius-md); overflow:hidden; background: var(--card-bg); border:1px solid var(--card-border); transition: var(--transition); }
.cert-card:hover{ transform: translateY(-8px); border-color: var(--accent); }
.cert-img{ aspect-ratio:10/7; overflow:hidden; cursor:pointer; }
.cert-img img{ width:100%; height:100%; object-fit:cover; transition: transform 0.5s ease; }
.cert-img:hover img{ transform: scale(1.08); }
.cert-info{ padding:22px; }
.cert-info h3{ font-size:1.05rem; margin-bottom:10px; }
.cert-provider, .cert-date{ font-size:0.85rem; color: var(--text-gray); margin-bottom:6px; display:flex; align-items:center; gap:8px; }
.cert-btn{ display:inline-flex; align-items:center; gap:8px; margin-top:12px; font-size:0.85rem; font-weight:600; color: var(--accent); }

/* =========================================================
   12. TESTIMONIALS
========================================================= */
.testimonial-swiper{ max-width:800px; margin:0 auto; padding-bottom:50px; }
.testimonial-card{ padding:44px; border-radius: var(--radius-md); background: var(--card-bg); border:1px solid var(--card-border); text-align:center; }
.quote-icon{ font-size:1.8rem; color: var(--primary); opacity:0.5; margin-bottom:16px; }
.testimonial-card p{ font-size:1.05rem; color: var(--text-light); margin-bottom:26px; font-style:italic; line-height:1.7; }
.testimonial-author{ display:flex; align-items:center; justify-content:center; gap:14px; }
.testimonial-author img{ width:52px; height:52px; border-radius:50%; object-fit:cover; border:2px solid var(--accent); }
.testimonial-author h4{ font-size:0.95rem; }
.testimonial-author span{ font-size:0.8rem; color: var(--text-gray); }
.swiper-pagination-bullet{ background: var(--text-gray); opacity:0.5; }
.swiper-pagination-bullet-active{ background: var(--gradient-primary); opacity:1; }

/* =========================================================
   12b. ACHIEVEMENTS GRID
========================================================= */
.achievement-grid{
  display:grid; grid-template-columns: repeat(4,1fr); gap:24px;
  max-width:1300px; margin:0 auto;
}
.achievement-item{
  padding:30px 22px; text-align:center; border-radius: var(--radius-md);
  background: var(--card-bg); border:1px solid var(--card-border);
  transition: var(--transition); position:relative;
}
.achievement-item:hover{
  transform: translateY(-8px);
  border-color: var(--accent);
  box-shadow: var(--shadow-glow);
}
.achievement-icon{
  width:56px; height:56px; margin:0 auto 16px; border-radius:16px;
  display:flex; align-items:center; justify-content:center;
  background: var(--gradient-primary); font-size:1.35rem; color:#fff;
}
.achievement-tag{
  display:inline-block; font-size:0.72rem; font-weight:700; letter-spacing:1.5px;
  text-transform:uppercase; color: var(--accent); margin-bottom:10px;
}
.achievement-item h3{ font-size:1.02rem; margin-bottom:6px; }
.achievement-item p{ font-size:0.85rem; color: var(--text-gray); }

/* =========================================================
   13. STATISTICS
========================================================= */
.stats{ background: var(--bg-alt); }
.stats-grid{ display:grid; grid-template-columns: repeat(5,1fr); gap:24px; max-width:1300px; margin:0 auto; text-align:center; }
.stat-item i{ font-size:1.8rem; color: var(--accent); margin-bottom:14px; }
.stat-item h3{ font-size:2.4rem; font-weight:700; background: var(--gradient-primary); -webkit-background-clip:text; background-clip:text; color:transparent; }
.stat-item p{ color: var(--text-gray); font-size:0.9rem; margin-top:6px; }

/* =========================================================
   14. CONTACT
========================================================= */
.contact-container{ display:grid; grid-template-columns: 0.9fr 1.1fr; gap:60px; max-width:1300px; margin:0 auto; }
.contact-info h3{ font-size:1.6rem; margin-bottom:14px; }
.contact-info > p{ color: var(--text-gray); margin-bottom:34px; }
.contact-item{ display:flex; gap:18px; align-items:center; margin-bottom:24px; }
.contact-icon{
  width:50px; height:50px; border-radius:14px; flex-shrink:0;
  display:flex; align-items:center; justify-content:center;
  background: var(--card-bg); border:1px solid var(--card-border); color: var(--accent); font-size:1.2rem;
}
.contact-item span{ font-size:0.8rem; color: var(--text-gray); }
.contact-item p{ font-size:1rem; color: var(--text-light); }
.contact-socials{ display:flex; gap:16px; margin-top:30px; }
.contact-socials a{
  width:44px; height:44px; border-radius:50%; display:flex; align-items:center; justify-content:center;
  background: var(--card-bg); border:1px solid var(--card-border); transition: var(--transition);
}
.contact-socials a:hover{ background: var(--gradient-primary); transform: translateY(-4px); }

.contact-form-wrap{ position:relative; padding:40px; border-radius: var(--radius-md); background: var(--card-bg); border:1px solid var(--card-border); }
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:20px; }
.form-group{ position:relative; margin-bottom:24px; }
.form-group input, .form-group textarea{
  width:100%; padding:16px; border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.04); border:1px solid var(--card-border);
  color: var(--text-light); font-family: var(--font-body); font-size:0.95rem; resize:none;
  transition: var(--transition);
}
.form-group input:focus, .form-group textarea:focus{ outline:none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(59,130,246,0.15); }
.form-group label{
  position:absolute; left:16px; top:16px; color: var(--text-gray); font-size:0.95rem;
  pointer-events:none; transition: var(--transition); background: transparent;
}
.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:focus + label,
.form-group textarea:not(:placeholder-shown) + label{
  top:-10px; left:12px; font-size:0.75rem; color: var(--accent); background: var(--bg); padding:0 6px;
}
.error-msg{ display:none; color:#F87171; font-size:0.78rem; margin-top:6px; }
.form-group.invalid input, .form-group.invalid textarea{ border-color:#F87171; }
.form-group.invalid .error-msg{ display:block; }

.btn-submit{ width:100%; justify-content:center; }
.form-success{
  display:none; text-align:center; padding:60px 20px; flex-direction:column; align-items:center; gap:12px;
}
.form-success.show{ display:flex; animation: fadeIn 0.6s ease; }
.form-success i{ font-size:3.4rem; color:#22C55E; }
.form-success p{ color: var(--text-gray); }

/* =========================================================
   15. FOOTER
========================================================= */
.footer{ padding:50px 8vw 30px; border-top:1px solid var(--card-border); text-align:center; }
.footer-container{ display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:24px; max-width:1300px; margin:0 auto 30px; }
.footer-links{ display:flex; gap:26px; flex-wrap:wrap; }
.footer-links a{ color: var(--text-gray); font-size:0.9rem; transition: var(--transition); }
.footer-links a:hover{ color: var(--accent); }
.footer-socials{ display:flex; gap:14px; }
.footer-socials a{
  width:40px; height:40px; border-radius:50%; display:flex; align-items:center; justify-content:center;
  background: var(--card-bg); border:1px solid var(--card-border); transition: var(--transition);
}
.footer-socials a:hover{ background: var(--gradient-primary); transform: translateY(-4px); }
.footer-copy{ color: var(--text-gray); font-size:0.82rem; }

/* =========================================================
   16. LIGHTBOX / BACK TO TOP
========================================================= */
.back-to-top{
  position:fixed; bottom:30px; right:30px; width:50px; height:50px; border-radius:50%;
  background: var(--gradient-primary); display:flex; align-items:center; justify-content:center;
  opacity:0; visibility:hidden; transform: translateY(20px); transition: var(--transition);
  z-index:900; box-shadow: var(--shadow-glow); font-size:1.1rem; color:#fff;
}
.back-to-top.show{ opacity:1; visibility:visible; transform: translateY(0); }
.back-to-top:hover{ transform: translateY(-6px); }

.lightbox{
  position:fixed; inset:0; background: rgba(11,17,32,0.92); backdrop-filter: blur(10px);
  display:none; align-items:center; justify-content:center; z-index:2000; padding:40px;
}
.lightbox.show{ display:flex; animation: fadeIn 0.3s ease; }
.lightbox img{ max-width:90vw; max-height:85vh; border-radius: var(--radius-md); }
.lightbox-close{ position:absolute; top:30px; right:40px; font-size:2.2rem; cursor:pointer; color: var(--text-light); }