/* ===========================================
   T. NITHESH — Digital Marketing Portfolio
   Blue / Black / White — Luxury Theme
   =========================================== */

/* ----- Design Tokens ----- */
:root {
  --blue-50: #E8F0FF;
  --blue-100: #B3D4FF;
  --blue-200: #80B8FF;
  --blue-300: #4D9CFF;
  --blue-400: #1A80FF;
  --blue-500: #0066FF;
  --blue-600: #0052CC;
  --blue-700: #003D99;
  --blue-800: #002966;
  --blue-900: #001433;

  --cyan-300: #66E5FF;
  --cyan-400: #33DDFF;
  --cyan-500: #00D4FF;
  --cyan-600: #00AACC;

  --gray-50: #F5F6FA;
  --gray-100: #E1E4EA;
  --gray-200: #C5C9D6;
  --gray-300: #A8AEBF;
  --gray-400: #8C93A8;
  --gray-500: #6E7A8A;
  --gray-600: #505C6C;
  --gray-700: #333D4E;
  --gray-800: #1A1F2E;
  --gray-900: #0D0F18;

  --dark-base: #08080F;
  --dark-surface: #0D0F1A;
  --dark-card: rgba(255,255,255,0.03);
  --dark-elevated: rgba(255,255,255,0.06);

  --gradient-neon: linear-gradient(135deg, #0066FF, #00D4FF);
  --gradient-neon-rev: linear-gradient(135deg, #00D4FF, #0066FF);
  --gradient-silver: linear-gradient(135deg, #FFFFFF, #A8AEBF);
  --gradient-dark: linear-gradient(135deg, #08080F, #0D0F1A);
  --gradient-card-bg: linear-gradient(145deg, rgba(255,255,255,0.02), rgba(0,102,255,0.03));

  --font-display: 'Poppins', sans-serif;
  --font-body: 'Inter', sans-serif;

  --shadow-blue: 0 0 30px rgba(0,102,255,0.3);
  --shadow-blue-sm: 0 0 15px rgba(0,102,255,0.2);
  --shadow-card: 0 8px 32px rgba(0,0,0,0.4);
  --shadow-elevated: 0 16px 48px rgba(0,0,0,0.6);

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

  --text-primary: #F5F6FA;
  --text-secondary: #A8AEBF;
  --text-muted: #6E7A8A;

  --bg-primary: var(--dark-base);
  --bg-secondary: var(--dark-surface);
  --border-glass: rgba(255,255,255,0.06);
  --border-glass-hover: rgba(0,102,255,0.2);
}

/* =============================================
   RESET & BASE
   ============================================= */
*,*::before,*::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; scroll-padding-top:80px; }
body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height:1.7;
  overflow-x:hidden;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration:none; color:inherit; }
ul { list-style:none; }
button { cursor:pointer; border:none; background:none; font-family:inherit; color:inherit; }
input,textarea { font-family:inherit; outline:none; }

::selection { background:var(--blue-500); color:#fff; }
::-webkit-scrollbar { width:6px; }
::-webkit-scrollbar-track { background:var(--bg-primary); }
::-webkit-scrollbar-thumb { background:var(--blue-500); border-radius:3px; }

/* =============================================
   UTILITY
   ============================================= */
.container { max-width:1240px; margin:0 auto; padding:0 24px; }
.text-gradient { background:var(--gradient-neon); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; }
.section { padding:110px 0; position:relative; overflow:hidden; }
.section .container { position:relative; z-index:2; }
.section-head { text-align:center; max-width:680px; margin:0 auto 56px; }
.section-head__tag {
  display:inline-block; padding:6px 18px; border-radius:50px;
  font-size:0.72rem; font-weight:700; text-transform:uppercase; letter-spacing:2.5px;
  background:rgba(0,102,255,0.08); border:1px solid rgba(0,102,255,0.15);
  color:var(--cyan-500); margin-bottom:14px;
}
.section-head__title { font-family:var(--font-display); font-size:clamp(1.8rem,4vw,2.8rem); font-weight:800; line-height:1.15; margin-bottom:14px; }
.section-head__sub { color:var(--text-secondary); font-size:1.02rem; }

/* Glass base */
.glass {
  background:var(--dark-card);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border:1px solid var(--border-glass);
  border-radius:var(--radius-lg);
  transition: all var(--transition);
}
.glass:hover { border-color:var(--border-glass-hover); background:var(--dark-elevated); }

/* =============================================
   NOISE OVERLAY
   ============================================= */
.noise-overlay {
  position:fixed; inset:0; z-index:9998;
  pointer-events:none; opacity:0.015;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='1'/%3E%3C/svg%3E");
  background-repeat:repeat; background-size:256px;
  mix-blend-mode:overlay;
}

/* =============================================
   PRELOADER
   ============================================= */
.preloader {
  position:fixed; inset:0; z-index:10000;
  background:var(--bg-primary);
  display:flex; flex-direction:column; align-items:center; justify-content:center; gap:24px;
  transition:opacity 0.6s ease, visibility 0.6s ease;
}
.preloader.hidden { opacity:0; visibility:hidden; pointer-events:none; }
.preloader__ring {
  display:inline-block; position:relative; width:64px; height:64px;
}
.preloader__ring div {
  position:absolute; width:64px; height:64px; border:3px solid transparent;
  border-top-color:var(--blue-500); border-radius:50%; animation:preloadSpin 1.2s linear infinite;
}
.preloader__ring div:nth-child(1) { animation-delay:-0.45s; }
.preloader__ring div:nth-child(2) { animation-delay:-0.3s; }
.preloader__ring div:nth-child(3) { animation-delay:-0.15s; }
@keyframes preloadSpin { 0%{transform:rotate(0)} 100%{transform:rotate(360deg)} }
.preloader__text { font-size:0.8rem; letter-spacing:4px; text-transform:uppercase; color:var(--text-muted); }

/* =============================================
   PARTICLE CANVAS
   ============================================= */
#particleCanvas { position:fixed; inset:0; z-index:0; pointer-events:none; }

/* =============================================
   HEADER
   ============================================= */
.header {
  position:fixed; top:0; left:0; width:100%; z-index:1000;
  padding:18px 0; transition:all var(--transition);
}
.header.scrolled {
  background:rgba(8,8,15,0.88);
  backdrop-filter:blur(24px); -webkit-backdrop-filter:blur(24px);
  border-bottom:1px solid var(--border-glass);
  padding:10px 0;
}
.header__row { display:flex; align-items:center; justify-content:space-between; }

.logo { display:flex; align-items:center; gap:10px; font-family:var(--font-display); font-size:1.4rem; font-weight:800; }
.logo__mark {
  display:flex; align-items:center; justify-content:center;
  width:34px; height:34px; border-radius:var(--radius-sm);
  background:var(--gradient-neon); color:#fff; font-size:1.1rem; font-weight:900;
}
.logo__dot { color:var(--blue-500); }

.nav__list { display:flex; gap:28px; }
.nav__link {
  font-size:0.82rem; font-weight:500; color:var(--text-secondary);
  transition:color var(--transition); position:relative;
}
.nav__link::after {
  content:''; position:absolute; bottom:-4px; left:50%; transform:translateX(-50%);
  width:0; height:2px; background:var(--gradient-neon);
  border-radius:2px; transition:width var(--transition);
}
.nav__link:hover, .nav__link.active { color:var(--text-primary); }
.nav__link:hover::after, .nav__link.active::after { width:100%; }

.header__actions { display:flex; align-items:center; gap:14px; }

.btn--small { padding:8px 20px; font-size:0.8rem; }

.theme-toggle {
  width:40px; height:40px; border-radius:50%;
  display:flex; align-items:center; justify-content:center; font-size:1.1rem;
  color:var(--text-secondary); background:var(--dark-card);
  border:1px solid var(--border-glass); transition:all var(--transition);
}
.theme-toggle:hover { color:var(--blue-400); background:var(--dark-elevated); }
[data-theme="dark"] .theme-toggle .fa-sun { display:none; }
[data-theme="light"] .theme-toggle .fa-moon { display:none; }

.hamburger { display:none; flex-direction:column; gap:5px; width:26px; padding:4px 0; }
.hamburger span { display:block; width:100%; height:2px; background:var(--text-primary); border-radius:2px; transition:all var(--transition); }
.hamburger.active span:nth-child(1) { transform:rotate(45deg) translate(5px,5px); }
.hamburger.active span:nth-child(2) { opacity:0; }
.hamburger.active span:nth-child(3) { transform:rotate(-45deg) translate(5px,-5px); }

/* =============================================
   BUTTONS
   ============================================= */
.btn {
  display:inline-flex; align-items:center; gap:10px;
  padding:14px 30px; border-radius:50px;
  font-size:0.9rem; font-weight:600;
  transition:all var(--transition); position:relative; overflow:hidden;
}
.btn--primary { background:var(--gradient-neon); color:#fff; }
.btn--primary:hover { transform:translateY(-2px); box-shadow:var(--shadow-blue); }
.btn--glow { box-shadow:0 4px 24px rgba(0,102,255,0.35); }
.btn--glow:hover { box-shadow:0 8px 40px rgba(0,102,255,0.5); }
.btn--outline { background:transparent; border:1.5px solid var(--border-glass); color:var(--text-primary); }
.btn--outline:hover { border-color:var(--blue-500); background:rgba(0,102,255,0.06); }
.btn--text { color:var(--blue-400); padding:0; }
.btn--text:hover { gap:14px; }
.btn--full { width:100%; justify-content:center; }

/* =============================================
   HERO
   ============================================= */
.hero {
  min-height:100vh; display:flex; align-items:center;
  position:relative; overflow:hidden; padding:120px 0 60px;
  background:radial-gradient(ellipse at 30% 50%,rgba(0,102,255,0.06),transparent 60%),
             radial-gradient(ellipse at 70% 80%,rgba(0,212,255,0.04),transparent 50%),
             var(--gradient-dark);
}
.hero__bg { position:absolute; inset:0; z-index:0; overflow:hidden; }
.hero__bg::after {
  content:''; position:absolute; inset:0;
  background:linear-gradient(135deg, rgba(0,0,0,0.7) 0%, rgba(0,102,255,0.25) 50%, rgba(0,0,0,0.5) 100%);
  z-index:1;
}
.hero__bg img { width:100%; height:100%; object-fit:cover; opacity:0.35; user-select:none; transition:transform 8s ease; }
.hero:hover .hero__bg img { transform:scale(1.05); }
.hero__glow {
  position:absolute; z-index:1; width:700px; height:700px; border-radius:50%;
  background:radial-gradient(circle,rgba(0,102,255,0.12),rgba(0,212,255,0.05),transparent 70%);
  top:-250px; right:-150px; animation:heroGlow 8s ease-in-out infinite alternate;
}
@keyframes heroGlow { 0%{opacity:0.5;transform:scale(1)} 100%{opacity:1;transform:scale(1.1)} }
.hero__grid-bg {
  position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,0.02) 1px,transparent 1px);
  background-size:60px 60px;
  mask-image:radial-gradient(ellipse at center,black 30%,transparent 70%);
  -webkit-mask-image:radial-gradient(ellipse at center,black 30%,transparent 70%);
}
.hero__row { display:grid; grid-template-columns:1.1fr 1fr; gap:60px; align-items:center; position:relative; z-index:1; }
.hero__badge {
  display:inline-flex; align-items:center; gap:10px;
  padding:6px 18px; border-radius:50px; font-size:0.72rem; font-weight:700;
  text-transform:uppercase; letter-spacing:2px;
  background:rgba(0,102,255,0.08); border:1px solid rgba(0,102,255,0.15);
  color:var(--cyan-500); margin-bottom:20px;
}
.hero__badge-line { width:20px; height:2px; background:var(--cyan-500); border-radius:2px; }
.hero__title { font-family:var(--font-display); font-size:clamp(2.2rem,5vw,4.2rem); font-weight:900; line-height:1.05; margin-bottom:12px; }
.hero__name-gradient { background:var(--gradient-neon); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; }
.hero__typewrap { font-size:clamp(1rem,2vw,1.5rem); color:var(--text-secondary); margin-bottom:20px; min-height:2.4rem; }
.hero__typewriter { color:var(--cyan-400); }
.hero__cursor { animation:blink 0.6s step-end infinite; color:var(--blue-400); }
@keyframes blink { 50%{opacity:0} }
.hero__desc { font-size:1.02rem; color:var(--text-secondary); max-width:520px; line-height:1.8; margin-bottom:32px; }
.hero__desc strong { color:var(--text-primary); }
.hero__actions { display:flex; gap:16px; flex-wrap:wrap; margin-bottom:40px; }
.hero__metrics { display:flex; gap:32px; }
.hero__metric-num {
  display:block; font-family:var(--font-display); font-size:2rem; font-weight:800;
  background:var(--gradient-neon); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text;
  line-height:1;
}
.hero__metric-label { font-size:0.8rem; color:var(--text-muted); font-weight:500; }

/* Hero Orb */
.hero__visual { display:flex; align-items:center; justify-content:center; position:relative; }
.hero__orb { position:relative; width:320px; height:320px; }
.hero__orb-ring {
  position:absolute; inset:0; border-radius:50%; border:1px solid transparent;
  animation:orbSpin 8s linear infinite;
}
.hero__orb-ring--1 { border-image:var(--gradient-neon) 1; opacity:0.3; }
.hero__orb-ring--2 { inset:30px; border-image:var(--gradient-neon-rev) 1; opacity:0.2; animation-duration:6s; animation-direction:reverse; }
.hero__orb-ring--3 { inset:60px; border-color:rgba(0,102,255,0.1); animation-duration:4s; }
.hero__orb-core {
  position:absolute; top:50%; left:50%; transform:translate(-50%,-50%);
  width:100px; height:100px; border-radius:50%;
  background:radial-gradient(circle,rgba(0,102,255,0.15),rgba(0,212,255,0.05));
  display:flex; align-items:center; justify-content:center;
  font-size:2.5rem; color:var(--blue-400);
  box-shadow:0 0 60px rgba(0,102,255,0.15);
}
@keyframes orbSpin { 100%{transform:rotate(360deg)} }

/* Floating badges */
.hero__float {
  position:absolute; display:flex; align-items:center; gap:8px;
  padding:8px 16px; border-radius:50px;
  font-size:0.78rem; font-weight:600;
  background:rgba(13,15,26,0.8); backdrop-filter:blur(12px);
  border:1px solid rgba(255,255,255,0.06);
  animation:float 5s ease-in-out infinite;
}
.hero__float i { font-size:0.9rem; }
.hero__float--1 { top:8%; right:5%; color:var(--cyan-400); animation-delay:0s; }
.hero__float--2 { bottom:20%; left:-5%; color:var(--blue-300); animation-delay:1.5s; }
.hero__float--3 { top:55%; right:-8%; color:var(--cyan-300); animation-delay:3s; }
.hero__float--4 { bottom:8%; right:15%; color:var(--blue-200); animation-delay:2s; }
@keyframes float { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-18px)} }

/* Scroll indicator */
.hero__scroll {
  position:absolute; bottom:30px; left:50%; transform:translateX(-50%);
  display:flex; flex-direction:column; align-items:center; gap:8px;
  font-size:0.65rem; text-transform:uppercase; letter-spacing:2px; color:var(--text-muted);
}
.hero__scroll-bar { width:1px; height:40px; background:var(--border-glass); position:relative; overflow:hidden; }
.hero__scroll-bar div { position:absolute; top:-100%; width:100%; height:100%; background:var(--gradient-neon); animation:scrollLine 2s ease-in-out infinite; }
@keyframes scrollLine { 0%{top:-100%} 100%{top:100%} }

/* =============================================
   SECTION BACKGROUNDS
   ============================================= */
.section-bg { position:absolute; inset:0; z-index:0; overflow:hidden; }
.section-bg::after {
  content:''; position:absolute; inset:0;
  background:linear-gradient(135deg, rgba(8,8,15,0.85) 0%, rgba(8,8,15,0.7) 50%, rgba(0,102,255,0.15) 100%);
  z-index:1;
}
.section-bg img { width:100%; height:100%; object-fit:cover; opacity:0.2; user-select:none; animation:bgParallax 20s ease-in-out infinite alternate; }
@keyframes bgParallax { 0%{transform:scale(1) translateY(0)} 100%{transform:scale(1.08) translateY(-2%)} }
[data-theme="light"] .section-bg::after {
  background:linear-gradient(135deg, rgba(245,246,250,0.9) 0%, rgba(245,246,250,0.7) 50%, rgba(0,102,255,0.05) 100%);
}

/* =============================================
   ABOUT
   ============================================= */
.about__grid { display:grid; grid-template-columns:1fr 1.2fr; gap:60px; align-items:center; }
.about__frame { position:relative; width:fit-content; }
.about__frame-bg {
  width:380px; height:460px; border-radius:var(--radius-lg);
  background:var(--gradient-card-bg); border:1px solid var(--border-glass);
  position:relative; overflow:hidden;
}
.about__frame-bg img { position:absolute; inset:0; width:100%; height:100%; object-fit:cover; }
.about__frame-bg::before { content:''; position:absolute; inset:0; background:radial-gradient(circle at 30% 40%,rgba(0,102,255,0.08),transparent); z-index:1; }
.about__avatar { position:absolute; inset:0; display:flex; align-items:center; justify-content:center; }
.about__avatar img {
  width:200px; height:200px; border-radius:50%; object-fit:cover;
  border:4px solid rgba(0,102,255,0.4); box-shadow:0 0 60px rgba(0,102,255,0.3), 0 0 120px rgba(0,102,255,0.1);
  z-index:2; position:relative; transition:transform var(--transition-slow);
}
.about__avatar img:hover { transform:scale(1.05); }
.about__badge {
  position:absolute; display:flex; align-items:center; gap:8px;
  padding:8px 14px; border-radius:50px; font-size:0.75rem; font-weight:600;
  background:rgba(13,15,26,0.9); backdrop-filter:blur(12px);
  border:1px solid var(--border-glass);
}
.about__badge i { font-size:0.85rem; }
.about__badge--1 { bottom:30px; right:-20px; color:var(--cyan-400); gap:10px; padding:10px 18px; font-size:0.8rem; background:rgba(8,8,15,0.9); backdrop-filter:blur(16px); }
.about__badge--2 { top:30px; left:-20px; color:var(--blue-300); gap:10px; padding:10px 18px; font-size:0.8rem; background:rgba(8,8,15,0.9); backdrop-filter:blur(16px); }
.about__heading { font-family:var(--font-display); font-size:clamp(1.3rem,2.5vw,1.8rem); font-weight:700; margin-bottom:18px; line-height:1.3; }
.about__text { color:var(--text-secondary); font-size:1rem; line-height:1.8; margin-bottom:14px; }
.about__pill-group { display:flex; flex-wrap:wrap; gap:10px; margin:24px 0; }
.about__pill-group span {
  padding:6px 16px; border-radius:50px; font-size:0.8rem; font-weight:500;
  background:rgba(0,102,255,0.06); border:1px solid rgba(0,102,255,0.1);
  color:var(--text-secondary); transition:all var(--transition);
}
.about__pill-group span:hover { background:var(--gradient-neon); color:#fff; border-color:transparent; }
.about__cta-row { display:flex; align-items:center; gap:20px; }

/* =============================================
   SKILLS
   ============================================= */
.skills__grid { display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.skill-block { padding:32px; }
.skill-block__head { font-family:var(--font-display); font-size:1.05rem; font-weight:600; margin-bottom:24px; display:flex; align-items:center; gap:10px; color:var(--cyan-400); }
.skill-meter { margin-bottom:18px; }
.skill-meter:last-child { margin-bottom:0; }
.skill-meter__head { display:flex; justify-content:space-between; font-size:0.82rem; margin-bottom:8px; color:var(--text-secondary); }
.skill-meter__val { font-weight:600; color:var(--text-primary); }
.skill-meter__track { width:100%; height:5px; border-radius:3px; background:rgba(255,255,255,0.04); overflow:hidden; }
.skill-meter__fill { height:100%; border-radius:3px; background:var(--gradient-neon); width:0; transition:width 1.5s cubic-bezier(0.4,0,0.2,1); }
.skill-meter.animated .skill-meter__fill { width:var(--w); }

/* =============================================
   SERVICES
   ============================================= */
.services__grid { display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.service-card { padding:36px 28px; text-align:center; opacity:0; transform:translateY(30px); transition:opacity 0.6s ease, transform 0.6s ease, border-color var(--transition), background var(--transition); }
.service-card.visible { opacity:1; transform:translateY(0); }
.service-card:hover { border-color:rgba(0,102,255,0.2); }
.service-card__icon {
  width:60px; height:60px; border-radius:var(--radius-md);
  background:var(--gradient-neon); display:flex; align-items:center; justify-content:center;
  font-size:1.4rem; color:#fff; margin:0 auto 18px;
}
.service-card h3 { font-family:var(--font-display); font-size:1.15rem; font-weight:700; margin-bottom:10px; }
.service-card p { color:var(--text-secondary); font-size:0.9rem; line-height:1.7; margin-bottom:18px; }
.service-card ul { text-align:left; }
.service-card ul li { display:flex; align-items:center; gap:8px; font-size:0.82rem; color:var(--text-secondary); padding:5px 0; }
.service-card ul li i { color:var(--cyan-500); font-size:0.75rem; }

/* =============================================
   PORTFOLIO
   ============================================= */
.portfolio__filter { display:flex; justify-content:center; gap:10px; flex-wrap:wrap; margin-bottom:36px; }
.pf-btn {
  padding:8px 22px; border-radius:50px; font-size:0.82rem; font-weight:500;
  color:var(--text-secondary); background:rgba(255,255,255,0.02);
  border:1px solid var(--border-glass); transition:all var(--transition);
}
.pf-btn.active, .pf-btn:hover { background:var(--gradient-neon); color:#fff; border-color:transparent; }
.portfolio__grid { display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }

.project-card { overflow:hidden; transition:all var(--transition); position:relative; }
.project-card:hover { transform:translateY(-8px); box-shadow:0 20px 60px rgba(0,0,0,0.5); }
.project-card__thumb {
  height:240px; background:var(--gradient-card-bg);
  display:flex; align-items:center; justify-content:center;
  font-size:3rem; color:var(--text-muted); position:relative; overflow:hidden;
}
.project-card__thumb::after {
  content:''; position:absolute; inset:0;
  background:linear-gradient(0deg, rgba(0,0,0,0.4) 0%, transparent 50%);
  z-index:1; pointer-events:none;
}
.project-card__icon { transition:transform var(--transition-slow); }
.project-card:hover .project-card__icon { transform:scale(1.1); }
.project-card__img { width:100%; height:100%; object-fit:cover; position:absolute; inset:0; transition:transform 0.7s cubic-bezier(0.4,0,0.2,1); }
.project-card:hover .project-card__img { transform:scale(1.12); }
.project-card__overlay {
  position:absolute; inset:0; z-index:2;
  background:linear-gradient(135deg,rgba(0,102,255,0.92),rgba(0,212,255,0.88));
  display:flex; align-items:center; justify-content:center; gap:14px;
  opacity:0; transition:opacity var(--transition);
}
.project-card:hover .project-card__overlay { opacity:1; }
.project-card__link {
  width:44px; height:44px; border-radius:50%; background:rgba(255,255,255,0.2);
  display:flex; align-items:center; justify-content:center; color:#fff;
  font-size:1rem; transform:translateY(20px);
  transition:all var(--transition); backdrop-filter:blur(8px);
}
.project-card:hover .project-card__link { transform:translateY(0); }
.project-card__link:hover { background:#fff; color:var(--blue-500); }
.project-card__body { padding:22px; }
.project-card__tag {
  display:inline-block; padding:3px 12px; border-radius:50px;
  font-size:0.65rem; font-weight:700; text-transform:uppercase; letter-spacing:1px;
  background:rgba(0,102,255,0.1); border:1px solid rgba(0,102,255,0.15);
  color:var(--cyan-400); margin-bottom:10px;
}
.project-card__title { font-family:var(--font-display); font-size:1.05rem; font-weight:700; margin-bottom:6px; }
.project-card__desc { font-size:0.85rem; color:var(--text-secondary); line-height:1.6; margin-bottom:12px; }
.project-card__stat { font-size:0.82rem; font-weight:600; color:var(--text-muted); }
.project-card__stat span { color:var(--cyan-400); font-weight:700; }

/* =============================================
   CERTIFICATIONS
   ============================================= */
.certs__grid { display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
.cert-card { display:flex; align-items:flex-start; gap:16px; padding:24px; }
.cert-card__icon {
  width:56px; height:56px; border-radius:var(--radius-md);
  background:rgba(0,102,255,0.12); display:flex; align-items:center; justify-content:center;
  font-size:1.3rem; color:var(--cyan-400); flex-shrink:0;
  box-shadow:0 0 20px rgba(0,102,255,0.08);
}
.cert-card__icon img { width:30px; height:30px; filter:brightness(0) invert(0.85); }
[data-theme="light"] .cert-card__icon img { filter:none; }
.cert-card__info h3 { font-family:var(--font-display); font-size:0.95rem; font-weight:700; margin-bottom:4px; }
.cert-card__info p { font-size:0.82rem; color:var(--text-secondary); line-height:1.5; margin-bottom:6px; }
.cert-card__date {
  display:inline-block; padding:2px 10px; border-radius:50px;
  font-size:0.68rem; font-weight:600;
  background:var(--gradient-neon); color:#fff;
}

/* =============================================
   TESTIMONIALS
   ============================================= */
.testimonials__slider { max-width:700px; margin:0 auto 28px; position:relative; }
.t-slide { display:none; text-align:center; padding:40px; animation:fadeSlide 0.5s ease; }
.t-slide.active { display:block; }
@keyframes fadeSlide { from{opacity:0;transform:translateY(20px)} to{opacity:1;transform:translateY(0)} }
.t-slide__stars { color:var(--cyan-400); font-size:1.2rem; margin-bottom:16px; letter-spacing:4px; }
.t-slide__text { font-size:1.02rem; font-style:italic; line-height:1.8; color:var(--text-secondary); margin-bottom:22px; }
.t-slide__author { display:flex; align-items:center; justify-content:center; gap:12px; }
.t-slide__avatar { width:56px; height:56px; border-radius:50%; background:var(--gradient-neon); display:flex; align-items:center; justify-content:center; color:#fff; font-size:1.1rem; overflow:hidden; flex-shrink:0; box-shadow:0 0 30px rgba(0,102,255,0.25); border:2px solid rgba(255,255,255,0.1); }
.t-slide__avatar img { width:100%; height:100%; object-fit:cover; }
.t-slide__author strong { display:block; font-size:0.9rem; }
.t-slide__author span { font-size:0.78rem; color:var(--text-muted); }
.testimonials__nav { display:flex; align-items:center; justify-content:center; gap:20px; }
.t-nav-btn {
  width:44px; height:44px; border-radius:50%;
  background:var(--dark-card); border:1px solid var(--border-glass);
  display:flex; align-items:center; justify-content:center; font-size:0.95rem;
  color:var(--text-primary); transition:all var(--transition);
}
.t-nav-btn:hover { background:var(--gradient-neon); color:#fff; }
.t-dots { display:flex; gap:8px; }
.t-dot { width:10px; height:10px; border-radius:50%; background:var(--text-muted); transition:all var(--transition); cursor:pointer; }
.t-dot.active { background:var(--blue-500); width:28px; border-radius:5px; }

/* =============================================
   BLOG
   ============================================= */
.blog__grid { display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.blog-card { overflow:hidden; transition:all var(--transition); }
.blog-card:hover { transform:translateY(-6px); box-shadow:0 16px 48px rgba(0,0,0,0.4); }
.blog-card__image {
  height:220px; background:var(--gradient-card-bg); position:relative;
  display:flex; align-items:center; justify-content:center; font-size:2.5rem; color:var(--text-muted);
  overflow:hidden;
}
.blog-card__image img { position:absolute; inset:0; width:100%; height:100%; object-fit:cover; transition:transform 0.7s cubic-bezier(0.4,0,0.2,1); }
.blog-card:hover .blog-card__image img { transform:scale(1.1); }
.blog-card__image::after {
  content:''; position:absolute; inset:0;
  background:linear-gradient(0deg, rgba(0,0,0,0.3) 0%, transparent 50%);
  z-index:1;
}
.blog-card__date {
  position:absolute; bottom:12px; left:14px; padding:3px 12px; border-radius:50px;
  font-size:0.68rem; font-weight:600; background:rgba(8,8,15,0.7); backdrop-filter:blur(8px);
  color:var(--text-secondary);
}
.blog-card__body { padding:22px; }
.blog-card__tag {
  display:inline-block; padding:3px 12px; border-radius:50px;
  font-size:0.65rem; font-weight:700; text-transform:uppercase; letter-spacing:1px;
  background:rgba(0,102,255,0.1); border:1px solid rgba(0,102,255,0.15);
  color:var(--cyan-400); margin-bottom:8px;
}
.blog-card__body h3 { font-family:var(--font-display); font-size:1rem; font-weight:700; margin-bottom:8px; line-height:1.4; }
.blog-card__body h3 a:hover { color:var(--blue-400); }
.blog-card__body p { font-size:0.82rem; color:var(--text-secondary); line-height:1.6; margin-bottom:12px; }
.blog-card__link { font-size:0.82rem; font-weight:600; color:var(--blue-400); display:inline-flex; align-items:center; gap:6px; transition:gap var(--transition); }
.blog-card__link:hover { gap:10px; }
.blog__cta { text-align:center; margin-top:36px; }

/* =============================================
   BRAND STORY
   ============================================= */
.story__row { display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:center; }
.story__text p { color:var(--text-secondary); font-size:1rem; line-height:1.8; margin-bottom:14px; }
.story__text .story__lead { font-size:1.1rem; color:var(--text-primary); font-weight:500; }
.story__text strong { color:var(--text-primary); }
.story__pillars { display:grid; grid-template-columns:repeat(3,1fr); gap:16px; margin-top:28px; }
.pillar { padding:20px; border-radius:var(--radius-md); background:var(--dark-card); border:1px solid var(--border-glass); text-align:center; }
.pillar i { font-size:1.3rem; background:var(--gradient-neon); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; margin-bottom:8px; }
.pillar h4 { font-family:var(--font-display); font-size:0.9rem; font-weight:600; margin-bottom:4px; }
.pillar p { font-size:0.78rem; margin-bottom:0; }
.story__quote blockquote {
  padding:40px; border-radius:var(--radius-lg); position:relative;
  background:var(--gradient-card-bg); border:1px solid var(--border-glass);
}
.story__quote .fa-quote-left { font-size:1.8rem; background:var(--gradient-neon); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; margin-bottom:14px; display:block; }
.story__quote blockquote p { font-size:1.1rem; font-style:italic; line-height:1.8; color:var(--text-primary); margin-bottom:18px; }
.story__quote cite { font-style:normal; font-weight:600; color:var(--blue-400); }

/* =============================================
   CONTACT
   ============================================= */
.contact__row { display:grid; grid-template-columns:1fr 1.5fr; gap:40px; }
.contact__item { display:flex; align-items:center; gap:16px; padding:18px; margin-bottom:14px; }
.contact__item i {
  width:44px; height:44px; border-radius:var(--radius-md);
  background:rgba(0,102,255,0.1); display:flex; align-items:center; justify-content:center;
  color:var(--cyan-400); font-size:1rem; flex-shrink:0;
}
.contact__item h4 { font-size:0.72rem; font-weight:600; color:var(--text-muted); text-transform:uppercase; letter-spacing:1px; margin-bottom:2px; }
.contact__item a, .contact__item span { font-size:0.92rem; transition:color var(--transition); }
.contact__item a:hover { color:var(--blue-400); }
.contact__social-block { padding:20px; margin-top:14px; }
.contact__social-block h4 { font-size:0.72rem; font-weight:600; color:var(--text-muted); text-transform:uppercase; letter-spacing:1px; margin-bottom:14px; }
.contact__social-links { display:flex; gap:10px; flex-wrap:wrap; }
.contact__social-links a {
  width:44px; height:44px; border-radius:50%;
  background:var(--dark-card); border:1px solid var(--border-glass);
  display:flex; align-items:center; justify-content:center;
  color:var(--text-secondary); font-size:1rem;
  transition:all var(--transition);
}
.contact__social-links a:hover { background:var(--gradient-neon); color:#fff; transform:translateY(-3px); }

.contact__form { padding:36px; }
.form-field { position:relative; margin-bottom:18px; }
.form-field input, .form-field textarea {
  width:100%; padding:14px 16px; border-radius:var(--radius-sm);
  background:var(--bg-primary); border:1px solid var(--border-glass);
  color:var(--text-primary); font-size:0.9rem; transition:border var(--transition);
}
.form-field input:focus, .form-field textarea:focus { border-color:var(--blue-500); }
.form-field textarea { resize:vertical; min-height:110px; }
.form-field__line { position:absolute; bottom:0; left:0; width:0; height:2px; background:var(--gradient-neon); transition:width var(--transition); }
.form-field input:focus ~ .form-field__line, .form-field textarea:focus ~ .form-field__line { width:100%; }

/* =============================================
   FOOTER
   ============================================= */
.footer { padding-top:60px; border-top:1px solid var(--border-glass); background:var(--bg-secondary); }
.footer__grid { display:grid; grid-template-columns:2fr 1fr 1fr 1.5fr; gap:40px; padding-bottom:40px; }
.footer__brand .logo { margin-bottom:14px; }
.footer__brand p { font-size:0.88rem; color:var(--text-secondary); max-width:280px; margin-bottom:16px; }
.footer__social { display:flex; gap:10px; }
.footer__social a {
  width:38px; height:38px; border-radius:50%;
  background:var(--dark-card); border:1px solid var(--border-glass);
  display:flex; align-items:center; justify-content:center;
  color:var(--text-secondary); font-size:0.9rem; transition:all var(--transition);
}
.footer__social a:hover { background:var(--gradient-neon); color:#fff; }
.footer__links h4 { font-family:var(--font-display); font-size:0.9rem; font-weight:600; margin-bottom:14px; }
.footer__links li { margin-bottom:8px; }
.footer__links li a { font-size:0.85rem; color:var(--text-secondary); transition:color var(--transition); }
.footer__links li a:hover { color:var(--blue-400); }
.footer__subscribe h4 { font-family:var(--font-display); font-size:0.9rem; font-weight:600; margin-bottom:6px; }
.footer__subscribe p { font-size:0.82rem; color:var(--text-secondary); margin-bottom:14px; }
.footer__form { display:flex; border-radius:50px; overflow:hidden; background:var(--bg-primary); border:1px solid var(--border-glass); }
.footer__form input { flex:1; padding:10px 16px; background:transparent; border:none; color:var(--text-primary); font-size:0.85rem; }
.footer__form button { padding:10px 18px; background:var(--gradient-neon); color:#fff; font-size:0.95rem; transition:opacity var(--transition); }
.footer__form button:hover { opacity:0.85; }
.footer__bottom { padding:20px 0; border-top:1px solid var(--border-glass); text-align:center; }
.footer__bottom p { font-size:0.8rem; color:var(--text-muted); }
.footer__bottom .fa-heart { color:var(--blue-400); }

/* =============================================
   BACK TO TOP
   ============================================= */
.btt {
  position:fixed; bottom:28px; right:28px; z-index:999;
  width:46px; height:46px; border-radius:50%;
  background:var(--gradient-neon); color:#fff; font-size:1.1rem;
  display:flex; align-items:center; justify-content:center;
  opacity:0; visibility:hidden; transform:translateY(20px);
  transition:all var(--transition); box-shadow:var(--shadow-blue);
}
.btt.visible { opacity:1; visibility:visible; transform:translateY(0); }
.btt:hover { transform:translateY(-3px); box-shadow:0 0 40px rgba(0,102,255,0.5); }

/* =============================================
   REVEAL ANIMATIONS
   ============================================= */
[data-reveal] { opacity:0; transition:opacity 0.7s ease, transform 0.7s cubic-bezier(0.4,0,0.2,1); }
[data-reveal="fade"] { transform:translateY(30px); }
[data-reveal="fade-up"] { transform:translateY(40px); }
[data-reveal="slide-left"] { transform:translateX(-40px); }
[data-reveal="slide-right"] { transform:translateX(40px); }
[data-reveal="scale"] { transform:scale(0.85); }
[data-reveal].revealed { opacity:1; transform:translate(0) scale(1); }

/* =============================================
   3D TILT
   ============================================= */
.tilt-card { transition:transform 0.1s ease; transform-style:preserve-3d; will-change:transform; }

/* =============================================
   LIGHT THEME
   ============================================= */
[data-theme="light"] {
  --dark-base: #F5F6FA;
  --dark-surface: #FFFFFF;
  --dark-card: rgba(255,255,255,0.8);
  --dark-elevated: rgba(255,255,255,0.95);
  --text-primary: #0D0F18;
  --text-secondary: #505C6C;
  --text-muted: #8C93A8;
  --border-glass: rgba(0,0,0,0.06);
  --border-glass-hover: rgba(0,102,255,0.15);
  --gradient-dark: linear-gradient(135deg, #F5F6FA, #FFFFFF);
  --shadow-card: 0 8px 32px rgba(0,0,0,0.06);
  --shadow-elevated: 0 16px 48px rgba(0,0,0,0.08);
  --gradient-card-bg: linear-gradient(145deg, rgba(0,102,255,0.02), rgba(0,212,255,0.02));
}
[data-theme="light"] .header.scrolled { background:rgba(255,255,255,0.88); }
[data-theme="light"] .hero { background:radial-gradient(ellipse at 30% 50%,rgba(0,102,255,0.04),transparent 60%), radial-gradient(ellipse at 70% 80%,rgba(0,212,255,0.03),transparent 50%), var(--gradient-dark); }
[data-theme="light"] .hero__float { background:rgba(255,255,255,0.85); border-color:rgba(0,0,0,0.06); }
[data-theme="light"] .hero__grid-bg { background-image:linear-gradient(rgba(0,0,0,0.03) 1px,transparent 1px),linear-gradient(90deg,rgba(0,0,0,0.03) 1px,transparent 1px); }
[data-theme="light"] .contact__social-links a { background:var(--dark-card); }

/* =============================================
   RESPONSIVE
   ============================================= */
@media(max-width:1024px) {
  .hero__row { grid-template-columns:1fr; text-align:center; }
  .hero__content { order:1; }
  .hero__visual { order:0; margin-bottom:20px; }
  .hero__desc { margin:0 auto 32px; }
  .hero__actions { justify-content:center; }
  .hero__metrics { justify-content:center; }
  .hero__orb { width:240px; height:240px; }
  .hero__orb-core { width:80px; height:80px; font-size:2rem; }
  .hero__float { display:none; }
  .about__grid { grid-template-columns:1fr; text-align:center; }
  .about__frame { margin:0 auto; }
  .about__cta-row { justify-content:center; }
  .skills__grid { grid-template-columns:repeat(2,1fr); }
  .services__grid { grid-template-columns:repeat(2,1fr); }
  .portfolio__grid { grid-template-columns:repeat(2,1fr); }
  .certs__grid { grid-template-columns:repeat(2,1fr); }
  .blog__grid { grid-template-columns:repeat(2,1fr); }
  .story__row { grid-template-columns:1fr; }
  .contact__row { grid-template-columns:1fr; }
  .footer__grid { grid-template-columns:repeat(2,1fr); }
}

@media(max-width:768px) {
  .nav {
    position:fixed; top:0; right:-100%; width:280px; height:100vh;
    background:var(--bg-primary); border-left:1px solid var(--border-glass);
    padding:100px 32px 32px; transition:right var(--transition); z-index:1001;
  }
  .nav.open { right:0; }
  .nav__list { flex-direction:column; gap:18px; }
  .hamburger { display:flex; }
  .header__actions .btn--small { display:none; }
  .section { padding:70px 0; }
  .section-head { margin-bottom:36px; }

  .skills__grid { grid-template-columns:1fr; }
  .services__grid { grid-template-columns:1fr; }
  .portfolio__grid { grid-template-columns:1fr; }
  .certs__grid { grid-template-columns:1fr; }
  .blog__grid { grid-template-columns:1fr; }
  .story__pillars { grid-template-columns:1fr; }
  .footer__grid { grid-template-columns:1fr; }
  .hero__metrics { gap:20px; }
  .hero__metric-num { font-size:1.6rem; }
  .about__frame-bg { width:300px; height:380px; }
  .about__avatar img { width:160px; height:160px; }
}

@media(max-width:480px) {
  .hero__orb { width:180px; height:180px; }
  .hero__orb-core { width:60px; height:60px; font-size:1.5rem; }
  .hero__actions { flex-direction:column; align-items:center; }
  .hero__metrics { flex-direction:column; align-items:center; gap:12px; }
  .about__frame-bg { width:260px; height:320px; }
  .about__avatar img { width:140px; height:140px; }
  .about__badge--1 { right:-10px; }
  .about__badge--2 { left:-10px; }
  .service-card { padding:24px 20px; }
  .contact__form { padding:24px; }
  .t-slide { padding:24px; }
}