@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Instrument+Serif:ital@0;1&display=swap');

:root {
  --bg: #060B14;
  --bg-elevated: #0C1322;
  --bg-surface: #111827;
  --bg-hover: #1A2332;
  --border: rgba(148,163,184,.08);
  --border-active: rgba(99,140,255,.2);
  --blue: #637CFF;
  --blue-bright: #8B9FFF;
  --blue-dim: rgba(99,124,255,.12);
  --blue-glow: rgba(99,124,255,.25);
  --cyan: #38BDF8;
  --cyan-dim: rgba(56,189,248,.1);
  --green: #34D399;
  --green-dim: rgba(52,211,153,.1);
  --red: #FB7185;
  --red-dim: rgba(251,113,133,.1);
  --white: #F1F5F9;
  --text: #94A3B8;
  --text-dim: #64748B;
  --serif: 'Instrument Serif', Georgia, serif;
  --sans: 'Inter', -apple-system, system-ui, sans-serif;
  --r: 12px;
  --r-lg: 20px;
  --ease: cubic-bezier(.4,0,.2,1);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{margin:0;font-family:var(--sans);background:var(--bg);color:var(--text);font-size:15px;line-height:1.7;overflow-x:hidden;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4,h5,h6{font-family:var(--sans);color:var(--white);font-weight:700;line-height:1.15;margin:0 0 .5rem}
a{color:var(--blue-bright);text-decoration:none;transition:color .25s var(--ease)}
a:hover{color:var(--cyan)}
img{max-width:100%;height:auto;display:block}
::selection{background:var(--blue);color:#fff}

/* ===== PRELOADER ===== */
#preloader{position:fixed;inset:0;z-index:9999;background:var(--bg);display:flex;align-items:center;justify-content:center;transition:opacity .4s}
#preloader.fade-out{opacity:0;pointer-events:none}
.loader-ring{width:40px;height:40px;border:2px solid var(--border);border-top-color:var(--blue);border-radius:50%;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* ===== NAVBAR ===== */
.navbar-custom{background:rgba(6,11,20,.7);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border);padding:.55rem 0;transition:all .3s var(--ease)}
.navbar-custom .navbar-brand{font-weight:800;font-size:1.2rem;color:var(--white)!important;letter-spacing:-.5px}
.navbar-custom .navbar-brand span{color:var(--blue)}
.navbar-custom .nav-link{color:var(--text-dim)!important;font-size:.82rem;font-weight:500;padding:.45rem .75rem!important;transition:color .25s var(--ease)}
.navbar-custom .nav-link:hover,.navbar-custom .nav-link.active{color:var(--white)!important}
.navbar-custom .nav-link.active::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:16px;height:1.5px;background:var(--blue);border-radius:2px}
.navbar-custom .nav-link{position:relative}
.navbar-toggler{border:1px solid rgba(99,124,255,.2)!important;padding:4px 8px}
.navbar-toggler-icon{background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%238B9FFF' stroke-linecap='round' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e")!important}
.btn-nav-signin{background:var(--blue);color:#fff!important;font-weight:600;padding:7px 18px;border-radius:8px;border:none;font-size:.82rem;transition:all .25s var(--ease)}
.btn-nav-signin:hover{background:var(--blue-bright);box-shadow:0 0 20px var(--blue-glow);color:#fff!important}

/* ===== HERO ===== */
.hero-section{min-height:100vh;display:flex;align-items:center;position:relative;overflow:hidden;background:var(--bg)}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg::before{content:'';position:absolute;top:-40%;right:-20%;width:1000px;height:1000px;border-radius:50%;background:radial-gradient(circle,rgba(99,124,255,.07) 0%,transparent 65%);animation:drift 12s ease-in-out infinite alternate}
.hero-bg::after{content:'';position:absolute;bottom:-30%;left:-10%;width:800px;height:800px;border-radius:50%;background:radial-gradient(circle,rgba(56,189,248,.04) 0%,transparent 60%);animation:drift 15s ease-in-out infinite alternate-reverse}
@keyframes drift{0%{transform:translate(0,0) scale(1)}100%{transform:translate(30px,-20px) scale(1.05)}}
.hero-noise{position:absolute;inset:0;z-index:0;opacity:.015;background:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");background-size:128px}
.hero-grid{position:absolute;inset:0;z-index:0;background-image:linear-gradient(rgba(99,124,255,.02) 1px,transparent 1px),linear-gradient(90deg,rgba(99,124,255,.02) 1px,transparent 1px);background-size:80px 80px}
.hero-content{position:relative;z-index:2}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:2.5px;color:var(--blue-bright);margin-bottom:2rem}
.hero-eyebrow span{width:6px;height:6px;background:var(--blue);border-radius:50%;animation:pulse 2.5s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.3;transform:scale(.8)}}
.hero-title{font-size:clamp(3rem,7vw,5.5rem);font-weight:900;letter-spacing:-2px;line-height:1;margin-bottom:1.5rem}
.hero-title em{font-family:var(--serif);font-style:italic;font-weight:400;background:linear-gradient(135deg,var(--blue-bright),var(--cyan));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-desc{font-size:1.05rem;color:var(--text);max-width:480px;line-height:1.8;margin-bottom:2.5rem}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px}
.hero-photo-col{display:flex;align-items:center;justify-content:center}
.hero-img-wrap{position:relative;width:340px;height:340px}
.hero-img-wrap::before{content:'';position:absolute;inset:-3px;border-radius:50%;background:conic-gradient(from 180deg,var(--blue),var(--cyan),var(--blue-bright),var(--blue));opacity:.6;animation:ring 8s linear infinite;z-index:0}
@keyframes ring{to{transform:rotate(360deg)}}
.hero-img-wrap::after{content:'';position:absolute;inset:-30px;border-radius:50%;background:radial-gradient(circle,var(--blue-glow),transparent 70%);z-index:-1;opacity:.5}
.hero-img-wrap img,.hero-img-wrap .ph{width:100%;height:100%;border-radius:50%;object-fit:cover;border:3px solid var(--bg);position:relative;z-index:1}
.hero-img-wrap .ph{background:linear-gradient(135deg,var(--bg-elevated),var(--bg-surface));display:flex;align-items:center;justify-content:center;font-size:4.5rem;color:var(--blue)}
.hero-stats{display:flex;gap:48px;margin-top:3.5rem;padding-top:2rem;border-top:1px solid var(--border)}
.hero-stat-num{font-size:2rem;font-weight:800;color:var(--white);letter-spacing:-1px;line-height:1}
.hero-stat-num em{font-family:var(--serif);font-style:italic;color:var(--blue-bright)}
.hero-stat-label{font-size:.72rem;color:var(--text-dim);text-transform:uppercase;letter-spacing:1.5px;font-weight:500;margin-top:4px}

/* ===== HIGHLIGHT BAR ===== */
.highlight-bar{position:relative;z-index:10;margin-top:-60px}
.hl-card{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--r-lg);padding:2rem 1.8rem;transition:all .3s var(--ease);position:relative;overflow:hidden}
.hl-card::after{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--blue),transparent);opacity:0;transition:opacity .3s}
.hl-card:hover{border-color:var(--border-active);transform:translateY(-3px);box-shadow:0 12px 40px rgba(0,0,0,.25)}
.hl-card:hover::after{opacity:1}
.hl-card-icon{width:44px;height:44px;border-radius:10px;background:var(--blue-dim);display:flex;align-items:center;justify-content:center;font-size:1.15rem;color:var(--blue-bright);margin-bottom:1rem}
.hl-card h5{font-size:.92rem;font-weight:700;margin-bottom:.3rem}
.hl-card p{font-size:.82rem;color:var(--text-dim);margin:0;line-height:1.5}

/* ===== BUTTONS ===== */
.btn-accent{background:var(--blue);color:#fff;font-weight:600;padding:13px 30px;border-radius:10px;border:none;font-size:.88rem;transition:all .3s var(--ease);cursor:pointer}
.btn-accent:hover{background:var(--blue-bright);color:#fff;transform:translateY(-2px);box-shadow:0 8px 25px var(--blue-glow)}
.btn-outline-accent{border:1.5px solid var(--border);color:var(--white);font-weight:600;padding:12px 28px;border-radius:10px;background:transparent;transition:all .3s var(--ease);cursor:pointer}
.btn-outline-accent:hover{border-color:var(--blue);color:var(--blue-bright);background:var(--blue-dim)}

/* ===== SECTIONS ===== */
.section{padding:100px 0}
.section-alt{background:var(--bg-elevated)}
.section-eyebrow{font-size:.68rem;font-weight:700;text-transform:uppercase;letter-spacing:3px;color:var(--blue);margin-bottom:.6rem}
.section-title{font-size:clamp(1.75rem,3.5vw,2.6rem);letter-spacing:-.5px;margin-bottom:.8rem}
.section-title em{font-family:var(--serif);font-style:italic;font-weight:400}
.section-desc{color:var(--text-dim);max-width:560px;font-size:.95rem}
.section-line{width:40px;height:2px;background:linear-gradient(90deg,var(--blue),var(--cyan));border-radius:2px;margin-top:1.2rem}

/* ===== CARDS ===== */
.card-custom{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:2rem;transition:all .35s var(--ease);height:100%;position:relative;overflow:hidden}
.card-custom:hover{border-color:var(--border-active);transform:translateY(-3px);box-shadow:0 8px 30px rgba(0,0,0,.2)}
.card-icon{width:46px;height:46px;border-radius:10px;background:var(--blue-dim);display:flex;align-items:center;justify-content:center;font-size:1.15rem;color:var(--blue-bright);margin-bottom:1.1rem}

/* ===== TIMELINE ===== */
.timeline{position:relative;padding-left:36px}
.timeline::before{content:'';position:absolute;left:12px;top:0;bottom:0;width:1.5px;background:linear-gradient(to bottom,var(--blue),rgba(99,124,255,.1))}
.timeline-item{position:relative;margin-bottom:2rem;padding:1.8rem;background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--r-lg);transition:all .3s var(--ease)}
.timeline-item:hover{border-color:var(--border-active);transform:translateX(3px)}
.timeline-item::before{content:'';position:absolute;left:-30px;top:1.8rem;width:9px;height:9px;border-radius:50%;background:var(--blue);border:2px solid var(--bg);box-shadow:0 0 0 3px var(--blue-dim)}
.timeline-year{display:inline-block;font-size:.72rem;font-weight:700;color:var(--cyan);background:var(--cyan-dim);padding:2px 12px;border-radius:20px;margin-bottom:.5rem;letter-spacing:.5px}
.timeline-role{font-size:1.1rem;font-weight:700;margin:.3rem 0 .15rem}
.timeline-org{font-size:.85rem;color:var(--blue-bright);margin-bottom:.6rem}
.timeline-summary{font-size:.88rem;color:var(--text);margin-bottom:.5rem}
.timeline-detail{font-size:.82rem;color:var(--text-dim);display:flex;align-items:flex-start;gap:8px;margin-bottom:6px}
.timeline-detail::before{content:'';width:4px;height:4px;border-radius:50%;background:var(--blue);flex-shrink:0;margin-top:8px}

/* ===== PROJECT CARDS ===== */
.proj-card{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:0;overflow:hidden;transition:all .35s var(--ease);height:100%;display:flex;flex-direction:column}
.proj-card:hover{border-color:var(--border-active);transform:translateY(-3px);box-shadow:0 12px 35px rgba(0,0,0,.2)}
.proj-card-top{padding:6px 1.8rem 0;border-bottom:1px solid var(--border)}
.proj-card-body{padding:1.5rem 1.8rem 1.8rem;flex:1}
.proj-cat{font-size:.65rem;font-weight:700;text-transform:uppercase;letter-spacing:2px;color:var(--blue);background:var(--blue-dim);padding:4px 10px;border-radius:6px;display:inline-block;margin-bottom:.8rem}
.proj-title{font-size:1.05rem;font-weight:700;margin-bottom:.5rem}
.proj-desc{font-size:.85rem;color:var(--text-dim);margin-bottom:.8rem}
.proj-meta{font-size:.8rem;margin-bottom:.3rem}
.proj-meta strong{color:var(--blue-bright);font-weight:600}
.proj-meta.impact strong{color:var(--green)}
.proj-tags{display:flex;flex-wrap:wrap;gap:4px;margin-top:.8rem}
.tag{font-size:.68rem;font-weight:500;padding:3px 10px;border-radius:6px;background:var(--bg-hover);color:var(--text);border:1px solid var(--border)}

/* ===== EDUCATION ===== */
.edu-card{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--r);padding:1.4rem;margin-bottom:.8rem;transition:all .3s var(--ease)}
.edu-card:hover{border-color:var(--border-active)}
.edu-degree{font-size:.95rem;font-weight:700;color:var(--white);margin:0 0 2px}
.edu-inst{font-size:.82rem;color:var(--text-dim);margin:0}
.edu-year{font-size:.7rem;font-weight:600;color:var(--blue);background:var(--blue-dim);padding:2px 8px;border-radius:4px;display:inline-block;margin-top:6px}

.cert-group-title{font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:1.5px;color:var(--blue-bright);margin-bottom:.6rem}
.cert-badge{display:inline-flex;align-items:center;gap:6px;font-size:.8rem;padding:6px 14px;border-radius:8px;background:var(--bg-surface);border:1px solid var(--border);margin:3px;transition:all .25s var(--ease);color:var(--text)}
.cert-badge:hover{border-color:var(--border-active);color:var(--white)}
.cert-badge i{color:var(--blue);font-size:.75rem}

/* ===== SKILLS ===== */
.skill-bar{margin-bottom:1rem}
.skill-bar .skill-name{font-size:.82rem;font-weight:500;margin-bottom:4px;display:flex;justify-content:space-between}
.skill-bar .skill-name span{color:var(--blue-bright);font-size:.75rem;font-weight:600}
.skill-bar .bar-bg{width:100%;height:4px;background:var(--border);border-radius:2px;overflow:hidden}
.skill-bar .bar-fill{height:100%;background:linear-gradient(90deg,var(--blue),var(--cyan));border-radius:2px;width:0;transition:width 1s var(--ease)}

/* ===== ACHIEVEMENTS ===== */
.ach-card{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:1.6rem;transition:all .3s var(--ease);height:100%;text-align:center}
.ach-card:hover{border-color:var(--border-active);transform:translateY(-2px)}
.ach-icon{width:48px;height:48px;border-radius:12px;background:var(--blue-dim);display:flex;align-items:center;justify-content:center;font-size:1.2rem;color:var(--blue-bright);margin:0 auto 1rem}
.ach-card p{font-size:.85rem;color:var(--text);margin:0;line-height:1.5}

/* ===== BLOG ===== */
.blog-card{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;transition:all .3s var(--ease)}
.blog-card:hover{border-color:var(--border-active);transform:translateY(-3px)}
.blog-card-body{padding:1.5rem}
.blog-date{font-size:.7rem;font-weight:600;color:var(--blue);text-transform:uppercase;letter-spacing:1px}

/* ===== CONTACT ===== */
.form-dark .form-control,.form-dark textarea{background:var(--bg-hover);border:1px solid var(--border);color:var(--white);border-radius:10px;padding:12px 16px;font-size:.9rem;transition:all .25s var(--ease);font-family:var(--sans)}
.form-dark .form-control:focus,.form-dark textarea:focus{background:var(--bg-surface);border-color:var(--blue);box-shadow:0 0 0 3px var(--blue-dim);color:var(--white);outline:none}
.form-dark .form-control::placeholder{color:var(--text-dim)}
.form-dark label{font-size:.78rem;font-weight:600;color:var(--text-dim);margin-bottom:4px;text-transform:uppercase;letter-spacing:.5px}
.contact-info-item{display:flex;align-items:center;gap:14px;margin-bottom:1rem;padding:1rem;background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--r);transition:all .3s var(--ease)}
.contact-info-item:hover{border-color:var(--border-active)}
.contact-info-icon{width:40px;height:40px;border-radius:10px;background:var(--blue-dim);display:flex;align-items:center;justify-content:center;font-size:1rem;color:var(--blue-bright);flex-shrink:0}
.contact-info-text{font-size:.88rem}
.contact-info-text a{color:var(--text)}
.contact-info-text a:hover{color:var(--blue-bright)}

/* ===== FOOTER ===== */
.footer{background:var(--bg);border-top:1px solid var(--border);padding:3rem 0 2rem}
.footer-social a{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:10px;border:1px solid var(--border);color:var(--text-dim);margin:0 4px;transition:all .25s var(--ease);font-size:.9rem}
.footer-social a:hover{border-color:var(--blue);color:var(--blue-bright);background:var(--blue-dim)}
.back-to-top{position:fixed;bottom:24px;right:24px;width:40px;height:40px;border-radius:10px;background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:all .3s var(--ease);z-index:100;border:none;cursor:pointer;font-size:.9rem}
.back-to-top.show{opacity:1;visibility:visible}
.back-to-top:hover{background:var(--blue-bright);transform:translateY(-2px)}
.admin-edit-btn{position:fixed;bottom:24px;left:24px;z-index:100;background:var(--blue);color:#fff;border:none;padding:9px 18px;border-radius:10px;font-size:.82rem;font-weight:600;cursor:pointer;transition:all .3s var(--ease)}
.admin-edit-btn:hover{background:var(--blue-bright);color:#fff}

/* ===== ALERTS ===== */
.alert-custom-success{background:var(--green-dim);border:1px solid rgba(52,211,153,.2);color:var(--green);border-radius:10px}
.alert-custom-danger{background:var(--red-dim);border:1px solid rgba(251,113,133,.2);color:var(--red);border-radius:10px}

/* ===== ANIMATIONS ===== */
.fade-up{opacity:0;transform:translateY(24px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.fade-up.visible{opacity:1;transform:none}

/* ===== RESPONSIVE ===== */
@media(max-width:991px){
  .hero-section{text-align:center}
  .hero-desc{margin:0 auto 2.5rem}
  .hero-cta{justify-content:center}
  .hero-stats{justify-content:center;gap:32px}
  .hero-img-wrap{width:260px;height:260px;margin:0 auto 2.5rem}
  .section{padding:70px 0}
  .timeline{padding-left:28px}
  .highlight-bar{margin-top:-36px}
}
@media(max-width:575px){
  .hero-title{font-size:2.4rem;letter-spacing:-1px}
  .hero-img-wrap{width:200px;height:200px}
  .hero-stats{flex-direction:column;gap:16px;align-items:center}
  .section{padding:50px 0}
  .card-custom,.proj-card-body{padding:1.3rem}
  .hl-card{padding:1.4rem 1.2rem}
}

/* ===== ADMIN PANEL ===== */
.admin-sidebar{background:var(--bg-elevated);border-right:1px solid var(--border);min-height:100vh;padding-top:1rem}
.admin-sidebar .nav-link{color:var(--text-dim);padding:.65rem 1.1rem;font-size:.85rem;border-radius:8px;margin:1px 8px;transition:all .25s var(--ease)}
.admin-sidebar .nav-link:hover,.admin-sidebar .nav-link.active{color:var(--blue-bright);background:var(--blue-dim)}
.admin-sidebar .nav-link i{width:18px;text-align:center;margin-right:8px}
.admin-content{padding:2rem}
.admin-card{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:1.5rem;margin-bottom:1.5rem}
.table-dark-custom{--bs-table-bg:var(--bg-surface);--bs-table-border-color:var(--border);--bs-table-color:var(--text);--bs-table-hover-bg:var(--blue-dim);--bs-table-hover-color:var(--white)}
.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg)}
.login-card{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--r-lg);padding:2.5rem;width:100%;max-width:400px;box-shadow:0 20px 60px rgba(0,0,0,.3)}