/* ============================================================
   NADIA KESSLER — PORTFOLIO STYLESHEET
   Design language: "control-room precision" — a product designer/
   developer who builds interfaces for high-stakes operational
   software (fintech, ops tooling, dashboards). The visual system
   borrows from instrument panels and drafting tools: hairline
   grids, corner-bracket framing (like a viewfinder/bezel), status
   dots, monospace telemetry labels — kept quiet and precise
   rather than sci-fi.
   ============================================================ */

/* ---------------- 1. DESIGN TOKENS ---------------- */
:root{
  /* Color */
  --bg:            #14171C;
  --bg-raised:     #1A1E25;
  --surface:       #1C2027;
  --surface-hover: #222732;
  --line:          #2A2F38;
  --line-strong:   #3A4150;
  --text:          #EDEFF2;
  --text-muted:    #8A93A3;
  --text-faint:    #5B6270;
  --accent:        #3ED6B5;   /* signal teal — primary */
  --accent-dim:    #2A9B85;
  --accent-soft:   rgba(62,214,181,0.12);
  --warn:          #F5A623;   /* amber — secondary, used sparingly for status/badges */
  --warn-soft:     rgba(245,166,35,0.12);
  --danger:        #E8615C;

  /* Light mode overrides applied via [data-theme="light"] */

  /* Type */
  --font-display: 'Space Grotesk', 'Inter', sans-serif;
  --font-body:    'Inter', sans-serif;
  --font-mono:    'IBM Plex Mono', ui-monospace, monospace;

  /* Layout */
  --max-w: 1240px;
  --gutter: clamp(20px, 5vw, 64px);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --nav-h: 76px;

  /* Motion */
  --ease: cubic-bezier(.4,0,.2,1);
  --dur-fast: 160ms;
  --dur: 320ms;
  --dur-slow: 560ms;
}

[data-theme="light"]{
  --bg:            #F3F4F1;
  --bg-raised:     #FFFFFF;
  --surface:       #FFFFFF;
  --surface-hover: #ECEEF0;
  --line:          #DCDFE2;
  --line-strong:   #C6CAD0;
  --text:          #14171C;
  --text-muted:    #565E6C;
  --text-faint:    #8A93A3;
  --accent:        #1E9C82;
  --accent-dim:    #167A66;
  --accent-soft:   rgba(30,156,130,0.10);
  --warn:          #B5780F;
  --warn-soft:     rgba(181,120,15,0.10);
}

/* ---------------- 2. RESET ---------------- */
*,*::before,*::after{ box-sizing:border-box; margin:0; padding:0; }
html{ scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{ animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; scroll-behavior:auto !important; }
}
body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  transition:background var(--dur) var(--ease), color var(--dur) var(--ease);
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; }
button{ font:inherit; color:inherit; background:none; border:none; cursor:pointer; }
input,textarea,select{ font:inherit; color:inherit; background:none; border:none; }
h1,h2,h3,h4{ font-family:var(--font-display); font-weight:600; line-height:1.1; letter-spacing:-0.01em; }
:focus-visible{ outline:2px solid var(--accent); outline-offset:3px; border-radius:2px; }
.container{ max-width:var(--max-w); margin-inline:auto; padding-inline:var(--gutter); }
section{ position:relative; }

/* Utility: monospace eyebrow / telemetry label */
.eyebrow{
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--accent);
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-bottom:14px;
}
.eyebrow::before{
  content:'';
  width:7px; height:7px; border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 3px var(--accent-soft);
  flex:none;
}

.section-head{ max-width:640px; margin-bottom:56px; }
.section-head h2{ font-size:clamp(28px,4vw,42px); margin-bottom:14px; }
.section-head p{ color:var(--text-muted); font-size:17px; }
.section-pad{ padding-block:clamp(72px,10vw,120px); }

/* Corner-bracket "instrument bezel" framing — the signature motif,
   reused across cards site-wide instead of plain rounded boxes */
.bracket{
  position:relative;
}
.bracket::before,.bracket::after{
  content:'';
  position:absolute;
  width:14px; height:14px;
  border-color:var(--line-strong);
  transition:border-color var(--dur) var(--ease);
  pointer-events:none;
}
.bracket::before{
  top:-1px; left:-1px;
  border-top:2px solid; border-left:2px solid;
}
.bracket::after{
  bottom:-1px; right:-1px;
  border-bottom:2px solid; border-right:2px solid;
}
.bracket:hover::before,.bracket:hover::after{ border-color:var(--accent); }

/* Buttons */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:13px 26px;
  font-size:14.5px; font-weight:600;
  border-radius:var(--radius-sm);
  cursor:pointer;
  transition:transform var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
  white-space:nowrap;
}
.btn:active{ transform:scale(.97); }
.btn-primary{ background:var(--accent); color:#0B0D10; }
.btn-primary:hover{ background:var(--accent-dim); }
.btn-outline{ border:1px solid var(--line-strong); color:var(--text); }
.btn-outline:hover{ border-color:var(--accent); color:var(--accent); }
.btn-ghost{ color:var(--text-muted); }
.btn-ghost:hover{ color:var(--text); }
.btn-sm{ padding:9px 16px; font-size:13px; }
.btn-block{ width:100%; }

/* ---------------- 3. PRELOADER ---------------- */
#preloader{
  position:fixed; inset:0; z-index:9999;
  background:var(--bg);
  display:flex; align-items:center; justify-content:center;
  transition:opacity .5s var(--ease), visibility .5s var(--ease);
}
#preloader.loaded{ opacity:0; visibility:hidden; }
.loader-mark{ font-family:var(--font-mono); text-align:center; }
.loader-bars{ display:flex; gap:6px; margin-bottom:16px; justify-content:center; }
.loader-bars span{
  width:4px; height:26px; background:var(--accent); border-radius:2px;
  animation:loaderPulse 1s var(--ease) infinite;
}
.loader-bars span:nth-child(2){ animation-delay:.1s; }
.loader-bars span:nth-child(3){ animation-delay:.2s; }
.loader-bars span:nth-child(4){ animation-delay:.3s; }
.loader-bars span:nth-child(5){ animation-delay:.4s; }
@keyframes loaderPulse{ 0%,100%{ transform:scaleY(.4); opacity:.5; } 50%{ transform:scaleY(1); opacity:1; } }
.loader-mark small{ color:var(--text-faint); font-size:12px; letter-spacing:.1em; }

/* ---------------- 4. PAGE PROGRESS BAR ---------------- */
#progress-bar{
  position:fixed; top:0; left:0; height:2px; width:0%;
  background:var(--accent); z-index:1001;
  transition:width 80ms linear;
}

/* ---------------- 5. HEADER / NAV ---------------- */
header#site-header{
  position:fixed; top:0; left:0; right:0; z-index:1000;
  height:var(--nav-h);
  display:flex; align-items:center;
  border-bottom:1px solid transparent;
  transition:background var(--dur) var(--ease), border-color var(--dur) var(--ease), backdrop-filter var(--dur) var(--ease);
}
header#site-header.scrolled{
  background:color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom-color:var(--line);
}
.nav-inner{ display:flex; align-items:center; justify-content:space-between; width:100%; gap:24px; }
.logo{ font-family:var(--font-mono); font-size:16px; font-weight:600; letter-spacing:.02em; display:flex; align-items:center; gap:10px; }
.logo .dot{ width:8px; height:8px; border-radius:50%; background:var(--accent); box-shadow:0 0 0 3px var(--accent-soft); }
.logo span{ color:var(--text-faint); }

.nav-links{ display:flex; align-items:center; gap:30px; }
.nav-links a{
  font-size:14px; color:var(--text-muted); position:relative; padding:4px 0;
  transition:color var(--dur-fast) var(--ease);
}
.nav-links a::after{
  content:''; position:absolute; left:0; bottom:-2px; width:0; height:1px; background:var(--accent);
  transition:width var(--dur) var(--ease);
}
.nav-links a:hover, .nav-links a.active{ color:var(--text); }
.nav-links a:hover::after, .nav-links a.active::after{ width:100%; }

.nav-actions{ display:flex; align-items:center; gap:12px; }
#theme-toggle{
  width:38px; height:38px; border-radius:50%;
  border:1px solid var(--line); display:flex; align-items:center; justify-content:center;
  transition:border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}
#theme-toggle:hover{ border-color:var(--accent); transform:rotate(20deg); }
#theme-toggle svg{ width:17px; height:17px; }
.icon-moon{ display:none; }
[data-theme="light"] .icon-sun{ display:none; }
[data-theme="light"] .icon-moon{ display:block; }

.hamburger{
  display:none; flex-direction:column; gap:5px; width:24px; padding:4px;
}
.hamburger span{ height:2px; width:100%; background:var(--text); transition:transform var(--dur-fast) var(--ease), opacity var(--dur-fast) var(--ease); }
.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); }

@media (max-width: 980px){
  .nav-links{
    position:fixed; top:var(--nav-h); left:0; right:0; bottom:0;
    background:var(--bg); flex-direction:column; justify-content:flex-start;
    padding:40px var(--gutter); gap:6px;
    transform:translateX(100%); transition:transform var(--dur) var(--ease);
    border-top:1px solid var(--line);
  }
  .nav-links.open{ transform:translateX(0); }
  .nav-links a{ width:100%; padding:14px 0; border-bottom:1px solid var(--line); font-size:16px; }
  .nav-actions .btn-outline{ display:none; }
  .hamburger{ display:flex; }
}
@media (min-width: 981px){
  .nav-actions .btn.hide-desktop{ display:none; }
}

/* ---------------- 6. HERO ---------------- */
#hero{
  min-height:100vh;
  display:flex; align-items:center;
  padding-top:var(--nav-h);
  overflow:hidden;
}
.hero-grid-bg{
  position:absolute; inset:0; z-index:-2;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(ellipse 70% 60% at 50% 30%, black 10%, transparent 75%);
  opacity:.5;
}
.hero-glow{
  position:absolute; z-index:-1; width:640px; height:640px; border-radius:50%;
  background:radial-gradient(circle, var(--accent-soft) 0%, transparent 70%);
  top:-160px; right:-160px; pointer-events:none;
}
.hero-inner{ display:grid; grid-template-columns:1.15fr .85fr; gap:56px; align-items:center; width:100%; }
.hero-copy h1{ font-size:clamp(38px,6vw,68px); margin-bottom:20px; }
.hero-copy h1 .accent-text{ color:var(--accent); }
#typed-role{ font-family:var(--font-mono); }
#typed-role .cursor{ display:inline-block; width:2px; background:var(--accent); margin-left:2px; animation:blink 1s step-end infinite; }
@keyframes blink{ 50%{ opacity:0; } }
.hero-copy .subtitle{ font-size:18px; color:var(--text-muted); max-width:520px; margin-bottom:32px; }
.hero-ctas{ display:flex; gap:14px; flex-wrap:wrap; margin-bottom:40px; }
.hero-socials{ display:flex; gap:14px; }
.social-icon{
  width:38px; height:38px; border:1px solid var(--line); border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  transition:border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
  color:var(--text-muted);
}
.social-icon:hover{ border-color:var(--accent); color:var(--accent); transform:translateY(-3px); }
.social-icon svg{ width:16px; height:16px; }

.hero-visual{ position:relative; }
.hero-photo-frame{
  position:relative; border-radius:var(--radius-lg); overflow:hidden;
  aspect-ratio:4/5; background:var(--surface); border:1px solid var(--line);
}
.hero-photo-frame img{ width:100%; height:100%; object-fit:cover; filter:grayscale(.15); }
.hero-status-chip{
  position:absolute; bottom:16px; left:16px; right:16px;
  background:color-mix(in srgb, var(--bg) 70%, transparent);
  backdrop-filter:blur(10px);
  border:1px solid var(--line-strong);
  border-radius:var(--radius-md);
  padding:12px 14px;
  display:flex; align-items:center; gap:10px;
  font-family:var(--font-mono); font-size:12px;
}
.status-dot{ width:8px; height:8px; border-radius:50%; background:#3EDB6B; box-shadow:0 0 0 3px rgba(62,219,107,.18); flex:none; animation:statusPulse 2s var(--ease) infinite; }
@keyframes statusPulse{ 0%,100%{ opacity:1; } 50%{ opacity:.4; } }

.hero-stats{ display:flex; gap:0; margin-top:56px; border-top:1px solid var(--line); padding-top:28px; grid-column:1/-1; }
.stat{ flex:1; padding-right:24px; border-right:1px solid var(--line); }
.stat:last-child{ border-right:none; }
.stat .num{ font-family:var(--font-mono); font-size:clamp(26px,3vw,36px); font-weight:600; color:var(--text); }
.stat .num .plus{ color:var(--accent); }
.stat .label{ font-size:13px; color:var(--text-muted); margin-top:4px; }

@media (max-width: 900px){
  .hero-inner{ grid-template-columns:1fr; }
  .hero-visual{ order:-1; max-width:280px; margin-inline:auto; }
  .hero-stats{ flex-wrap:wrap; gap:20px; }
  .stat{ flex:1 1 40%; border-right:none; padding-right:0; }
}

/* ---------------- 7. ABOUT ---------------- */
#about .about-grid{ display:grid; grid-template-columns:.8fr 1.2fr; gap:64px; }
.about-media{ position:relative; }
.about-media img{ border-radius:var(--radius-lg); border:1px solid var(--line); aspect-ratio:3/4; object-fit:cover; }
.about-media .bracket{ padding:10px; }
.about-text p{ color:var(--text-muted); margin-bottom:16px; }
.about-values{ display:grid; grid-template-columns:repeat(2,1fr); gap:20px; margin-block:32px; }
.value-item{ padding:18px; border:1px solid var(--line); border-radius:var(--radius-md); }
.value-item h4{ font-size:15px; margin-bottom:6px; }
.value-item p{ font-size:13.5px; color:var(--text-muted); margin:0; }
.about-creds{ display:flex; gap:40px; flex-wrap:wrap; margin-bottom:28px; }
.cred-block h4{ font-family:var(--font-mono); font-size:12px; letter-spacing:.08em; text-transform:uppercase; color:var(--accent); margin-bottom:10px; }
.cred-block li{ font-size:14.5px; color:var(--text-muted); margin-bottom:6px; }
.cred-block li b{ color:var(--text); font-weight:500; }

@media (max-width:860px){ #about .about-grid{ grid-template-columns:1fr; } .about-values{ grid-template-columns:1fr; } }

/* ---------------- 8. SKILLS ---------------- */
.skills-grid{ display:grid; grid-template-columns:repeat(2,1fr); gap:48px 64px; }
.skill-cat h3{ font-size:16px; margin-bottom:20px; display:flex; align-items:center; gap:10px; }
.skill-cat h3::before{ content:''; width:5px; height:16px; background:var(--accent); }
.skill-row{ margin-bottom:18px; }
.skill-row-top{ display:flex; justify-content:space-between; font-size:13.5px; margin-bottom:8px; }
.skill-row-top span:last-child{ font-family:var(--font-mono); color:var(--accent); }
.skill-bar{ height:5px; background:var(--line); border-radius:3px; overflow:hidden; }
.skill-bar-fill{ height:100%; width:0; background:linear-gradient(90deg,var(--accent-dim),var(--accent)); border-radius:3px; transition:width 1.1s var(--ease); }
@media (max-width:760px){ .skills-grid{ grid-template-columns:1fr; } }

/* ---------------- 9. SERVICES ---------------- */
.services-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--line); border:1px solid var(--line); border-radius:var(--radius-lg); overflow:hidden; }
.service-card{ background:var(--surface); padding:32px 28px; transition:background var(--dur-fast) var(--ease); }
.service-card:hover{ background:var(--surface-hover); }
.service-icon{ width:42px; height:42px; border-radius:var(--radius-sm); background:var(--accent-soft); color:var(--accent); display:flex; align-items:center; justify-content:center; margin-bottom:20px; }
.service-icon svg{ width:20px; height:20px; }
.service-card h3{ font-size:17px; margin-bottom:10px; }
.service-card p{ font-size:14px; color:var(--text-muted); margin-bottom:18px; }
.service-foot{ display:flex; align-items:center; justify-content:space-between; padding-top:16px; border-top:1px solid var(--line); }
.service-price{ font-family:var(--font-mono); font-size:13px; color:var(--text-muted); }
.service-price b{ color:var(--text); font-size:15px; }
.service-link{ font-size:13px; color:var(--accent); display:inline-flex; align-items:center; gap:4px; }
.service-link svg{ width:12px; height:12px; transition:transform var(--dur-fast) var(--ease); }
.service-link:hover svg{ transform:translateX(3px); }
@media (max-width:900px){ .services-grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:600px){ .services-grid{ grid-template-columns:1fr; } }

/* ---------------- 10. PORTFOLIO ---------------- */
.portfolio-filters{ display:flex; gap:10px; flex-wrap:wrap; margin-bottom:36px; }
.filter-btn{
  padding:8px 16px; font-size:13px; border:1px solid var(--line); border-radius:20px; color:var(--text-muted);
  transition:all var(--dur-fast) var(--ease); font-family:var(--font-mono);
}
.filter-btn:hover{ color:var(--text); border-color:var(--line-strong); }
.filter-btn.active{ background:var(--accent); border-color:var(--accent); color:#0B0D10; }
.portfolio-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:26px; }
.project-card{ border-radius:var(--radius-lg); overflow:hidden; background:var(--surface); border:1px solid var(--line); transition:transform var(--dur) var(--ease), opacity var(--dur) var(--ease), border-color var(--dur) var(--ease); }
.project-card:hover{ border-color:var(--line-strong); transform:translateY(-4px); }
.project-card.hide{ display:none; }
.project-thumb{ position:relative; aspect-ratio:4/3; overflow:hidden; }
.project-thumb img{ width:100%; height:100%; object-fit:cover; transition:transform var(--dur-slow) var(--ease); }
.project-card:hover .project-thumb img{ transform:scale(1.06); }
.project-thumb-overlay{
  position:absolute; inset:0; background:rgba(10,12,15,.55); opacity:0; display:flex; align-items:center; justify-content:center;
  transition:opacity var(--dur) var(--ease);
}
.project-card:hover .project-thumb-overlay{ opacity:1; }
.quick-view-btn{ background:var(--accent); color:#0B0D10; padding:10px 20px; border-radius:20px; font-size:13px; font-weight:600; }
.project-body{ padding:22px; }
.project-cat{ font-family:var(--font-mono); font-size:11px; color:var(--accent); text-transform:uppercase; letter-spacing:.08em; }
.project-body h3{ font-size:18px; margin:8px 0; }
.project-body p{ font-size:13.5px; color:var(--text-muted); margin-bottom:14px; }
.tech-tags{ display:flex; gap:6px; flex-wrap:wrap; margin-bottom:16px; }
.tech-tags span{ font-family:var(--font-mono); font-size:11px; padding:3px 9px; border:1px solid var(--line); border-radius:4px; color:var(--text-muted); }
.project-links{ display:flex; gap:16px; }
.project-links a{ font-size:13px; color:var(--text); display:inline-flex; align-items:center; gap:5px; }
.project-links a:hover{ color:var(--accent); }
.project-links svg{ width:13px; height:13px; }
@media (max-width:960px){ .portfolio-grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:620px){ .portfolio-grid{ grid-template-columns:1fr; } }

/* Modal */
.modal-overlay{
  position:fixed; inset:0; z-index:1200; background:rgba(8,9,11,.72); backdrop-filter:blur(6px);
  display:flex; align-items:center; justify-content:center; padding:24px;
  opacity:0; visibility:hidden; transition:opacity var(--dur) var(--ease), visibility var(--dur) var(--ease);
}
.modal-overlay.open{ opacity:1; visibility:visible; }
.modal-box{
  background:var(--bg-raised); border:1px solid var(--line-strong); border-radius:var(--radius-lg);
  max-width:760px; width:100%; max-height:88vh; overflow-y:auto; position:relative;
  transform:translateY(20px) scale(.98); transition:transform var(--dur) var(--ease);
}
.modal-overlay.open .modal-box{ transform:translateY(0) scale(1); }
.modal-close{ position:absolute; top:16px; right:16px; width:36px; height:36px; border-radius:50%; background:var(--surface); border:1px solid var(--line); display:flex; align-items:center; justify-content:center; z-index:2; }
.modal-close:hover{ border-color:var(--accent); color:var(--accent); }
.modal-img{ width:100%; aspect-ratio:16/9; object-fit:cover; }
.modal-content{ padding:30px; }
.modal-meta{ display:grid; grid-template-columns:repeat(3,1fr); gap:18px; margin:22px 0; padding:18px 0; border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
.modal-meta div span{ display:block; font-family:var(--font-mono); font-size:11px; text-transform:uppercase; color:var(--text-faint); margin-bottom:4px; }
.modal-meta div b{ font-size:14px; font-weight:500; }
.modal-content h3{ font-size:24px; margin-bottom:10px; }
.modal-content p{ color:var(--text-muted); margin-bottom:16px; }
.modal-actions{ display:flex; gap:12px; margin-top:20px; }

/* ---------------- 11. EXPERIENCE TIMELINE ---------------- */
.timeline{ position:relative; padding-left:40px; }
.timeline::before{ content:''; position:absolute; left:5px; top:6px; bottom:6px; width:1px; background:var(--line); }
.timeline-item{ position:relative; padding-bottom:48px; }
.timeline-item:last-child{ padding-bottom:0; }
.timeline-item::before{ content:''; position:absolute; left:-40px; top:4px; width:11px; height:11px; border-radius:50%; background:var(--bg); border:2px solid var(--accent); }
.timeline-top{ display:flex; justify-content:space-between; align-items:baseline; flex-wrap:wrap; gap:8px; margin-bottom:6px; }
.timeline-top h3{ font-size:19px; }
.timeline-duration{ font-family:var(--font-mono); font-size:12px; color:var(--accent); border:1px solid var(--accent); border-radius:12px; padding:3px 10px; white-space:nowrap; }
.timeline-company{ color:var(--text-muted); font-size:14px; margin-bottom:12px; }
.timeline-item ul{ margin-bottom:12px; }
.timeline-item li{ font-size:14.5px; color:var(--text-muted); padding-left:16px; position:relative; margin-bottom:6px; }
.timeline-item li::before{ content:'—'; position:absolute; left:0; color:var(--text-faint); }
.achv-tags{ display:flex; gap:8px; flex-wrap:wrap; }
.achv-tags span{ font-size:11.5px; background:var(--warn-soft); color:var(--warn); padding:4px 10px; border-radius:4px; font-family:var(--font-mono); }

/* ---------------- 12. TESTIMONIALS ---------------- */
.testimonial-slider{ position:relative; max-width:760px; margin-inline:auto; overflow:hidden; }
.testimonial-track{ display:flex; transition:transform var(--dur-slow) var(--ease); }
.testimonial-slide{ flex:0 0 100%; padding:8px; }
.testimonial-card{ border:1px solid var(--line); border-radius:var(--radius-lg); padding:40px; text-align:center; background:var(--surface); }
.t-stars{ color:var(--warn); font-size:14px; letter-spacing:2px; margin-bottom:18px; }
.testimonial-card p{ font-size:18px; line-height:1.7; margin-bottom:26px; }
.t-person{ display:flex; align-items:center; justify-content:center; gap:12px; }
.t-person img{ width:44px; height:44px; border-radius:50%; object-fit:cover; }
.t-person div{ text-align:left; }
.t-person b{ display:block; font-size:14px; }
.t-person span{ font-size:12.5px; color:var(--text-muted); }
.slider-controls{ display:flex; justify-content:center; gap:20px; align-items:center; margin-top:28px; }
.slider-arrow{ width:38px; height:38px; border:1px solid var(--line); border-radius:50%; display:flex; align-items:center; justify-content:center; }
.slider-arrow:hover{ border-color:var(--accent); color:var(--accent); }
.slider-dots{ display:flex; gap:8px; }
.slider-dots button{ width:7px; height:7px; border-radius:50%; background:var(--line-strong); transition:background var(--dur-fast) var(--ease), width var(--dur-fast) var(--ease); }
.slider-dots button.active{ background:var(--accent); width:20px; border-radius:4px; }

.client-logos{ display:flex; justify-content:center; align-items:center; gap:48px; flex-wrap:wrap; margin-top:64px; opacity:.6; }
.client-logos span{ font-family:var(--font-mono); font-size:14px; letter-spacing:.05em; color:var(--text-muted); }

/* ---------------- 13. PRICING ---------------- */
.pricing-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; align-items:start; }
.price-card{ border:1px solid var(--line); border-radius:var(--radius-lg); padding:32px 28px; position:relative; transition:border-color var(--dur) var(--ease), transform var(--dur) var(--ease); }
.price-card:hover{ border-color:var(--line-strong); transform:translateY(-4px); }
.price-card.popular{ border-color:var(--accent); background:var(--surface); }
.popular-badge{ position:absolute; top:-13px; left:50%; transform:translateX(-50%); background:var(--accent); color:#0B0D10; font-family:var(--font-mono); font-size:11px; padding:5px 14px; border-radius:20px; font-weight:600; white-space:nowrap; }
.price-tier{ font-size:13px; color:var(--text-muted); text-transform:uppercase; letter-spacing:.08em; font-family:var(--font-mono); margin-bottom:10px; }
.price-amount{ font-size:38px; font-family:var(--font-display); margin-bottom:4px; }
.price-amount span{ font-size:14px; color:var(--text-muted); font-family:var(--font-body); }
.price-desc{ font-size:13.5px; color:var(--text-muted); margin-bottom:24px; }
.price-features{ margin-bottom:28px; }
.price-features li{ font-size:14px; padding:9px 0; border-top:1px solid var(--line); display:flex; align-items:center; gap:10px; }
.price-features li svg{ width:14px; height:14px; color:var(--accent); flex:none; }
.price-features li.off{ color:var(--text-faint); }
.price-features li.off svg{ color:var(--text-faint); }
@media (max-width:900px){ .pricing-grid{ grid-template-columns:1fr; max-width:420px; margin-inline:auto; } }

/* ---------------- 14. PROCESS ---------------- */
.process-list{ display:grid; grid-template-columns:repeat(4,1fr); gap:1px; background:var(--line); border:1px solid var(--line); border-radius:var(--radius-lg); overflow:hidden; }
.process-step{ background:var(--surface); padding:28px 24px; }
.process-num{ font-family:var(--font-mono); color:var(--accent); font-size:13px; margin-bottom:16px; }
.process-step h3{ font-size:16px; margin-bottom:8px; }
.process-step p{ font-size:13px; color:var(--text-muted); }
@media (max-width:900px){ .process-list{ grid-template-columns:1fr 1fr; } }
@media (max-width:560px){ .process-list{ grid-template-columns:1fr; } }

/* ---------------- 15. ACHIEVEMENTS BAND ---------------- */
.achv-band{ border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
.achv-grid{ display:grid; grid-template-columns:repeat(4,1fr); }
.achv-item{ text-align:center; padding:44px 20px; border-right:1px solid var(--line); }
.achv-item:last-child{ border-right:none; }
.achv-num{ font-family:var(--font-mono); font-size:clamp(30px,4vw,44px); color:var(--accent); font-weight:600; }
.achv-label{ font-size:13px; color:var(--text-muted); margin-top:6px; }
@media (max-width:760px){ .achv-grid{ grid-template-columns:1fr 1fr; } .achv-item{ border-bottom:1px solid var(--line); } }

.certs-gallery{ display:flex; gap:16px; flex-wrap:wrap; margin-top:48px; justify-content:center; }
.cert-chip{ display:flex; align-items:center; gap:10px; border:1px solid var(--line); border-radius:var(--radius-md); padding:12px 18px; font-size:13.5px; }
.cert-chip svg{ width:18px; height:18px; color:var(--warn); }

/* ---------------- 16. BLOG ---------------- */
.blog-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:26px; }
.blog-card{ border:1px solid var(--line); border-radius:var(--radius-lg); overflow:hidden; transition:transform var(--dur) var(--ease), border-color var(--dur) var(--ease); }
.blog-card:hover{ transform:translateY(-4px); border-color:var(--line-strong); }
.blog-thumb{ aspect-ratio:16/10; overflow:hidden; }
.blog-thumb img{ width:100%; height:100%; object-fit:cover; }
.blog-body{ padding:22px; }
.blog-meta{ display:flex; gap:14px; font-family:var(--font-mono); font-size:11px; color:var(--text-faint); margin-bottom:12px; text-transform:uppercase; letter-spacing:.05em; }
.blog-meta .cat{ color:var(--accent); }
.blog-body h3{ font-size:17px; margin-bottom:10px; line-height:1.35; }
.blog-read{ font-size:13px; color:var(--text); display:inline-flex; align-items:center; gap:5px; }
.blog-read svg{ width:12px; height:12px; }
@media (max-width:900px){ .blog-grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:600px){ .blog-grid{ grid-template-columns:1fr; } }

/* ---------------- 17. FAQ ---------------- */
.faq-list{ max-width:760px; }
.faq-item{ border-bottom:1px solid var(--line); }
.faq-q{ width:100%; display:flex; justify-content:space-between; align-items:center; padding:22px 4px; text-align:left; font-size:16px; font-weight:500; gap:20px; }
.faq-q svg{ width:16px; height:16px; flex:none; transition:transform var(--dur) var(--ease); color:var(--accent); }
.faq-item.open .faq-q svg{ transform:rotate(45deg); }
.faq-a{ max-height:0; overflow:hidden; transition:max-height var(--dur) var(--ease); }
.faq-a p{ padding:0 4px 22px; color:var(--text-muted); font-size:14.5px; max-width:640px; }

/* ---------------- 18. CONTACT ---------------- */
.contact-grid{ display:grid; grid-template-columns:.9fr 1.4fr; gap:56px; }
.contact-info h3{ font-size:20px; margin-bottom:18px; }
.contact-info img{ width:64px; height:64px; border-radius:50%; object-fit:cover; margin-bottom:18px; }
.contact-row{ display:flex; gap:14px; align-items:flex-start; padding:16px 0; border-top:1px solid var(--line); }
.contact-row svg{ width:17px; height:17px; color:var(--accent); flex:none; margin-top:2px; }
.contact-row span{ display:block; font-size:12px; color:var(--text-faint); font-family:var(--font-mono); text-transform:uppercase; letter-spacing:.05em; margin-bottom:3px; }
.contact-row b{ font-weight:500; font-size:14.5px; }
.avail-badge{ display:inline-flex; align-items:center; gap:8px; font-family:var(--font-mono); font-size:12.5px; background:rgba(62,219,107,.1); color:#3EDB6B; padding:7px 14px; border-radius:20px; margin-top:20px; }
.avail-badge .status-dot{ background:#3EDB6B; }

.contact-form{ display:grid; grid-template-columns:1fr 1fr; gap:18px; }
.form-group{ display:flex; flex-direction:column; gap:8px; }
.form-group.full{ grid-column:1/-1; }
.form-group label{ font-size:12.5px; color:var(--text-muted); font-family:var(--font-mono); text-transform:uppercase; letter-spacing:.04em; }
.form-group input, .form-group select, .form-group textarea{
  border:1px solid var(--line); border-radius:var(--radius-sm); padding:13px 14px; font-size:14.5px; background:var(--surface);
  transition:border-color var(--dur-fast) var(--ease);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus{ border-color:var(--accent); }
.form-group textarea{ resize:vertical; min-height:120px; }
.form-error{ font-size:12px; color:var(--danger); min-height:16px; }
.form-group.invalid input, .form-group.invalid select, .form-group.invalid textarea{ border-color:var(--danger); }
@media (max-width:860px){ .contact-grid{ grid-template-columns:1fr; } .contact-form{ grid-template-columns:1fr; } }

/* ---------------- 19. NEWSLETTER ---------------- */
.newsletter-box{
  border:1px solid var(--line); border-radius:var(--radius-lg); padding:48px; text-align:center;
  background:radial-gradient(ellipse at top, var(--accent-soft), transparent 70%);
}
.newsletter-box h3{ font-size:24px; margin-bottom:10px; }
.newsletter-box p{ color:var(--text-muted); margin-bottom:26px; }
.newsletter-form{ display:flex; gap:10px; max-width:440px; margin-inline:auto; }
.newsletter-form input{ flex:1; border:1px solid var(--line); background:var(--surface); border-radius:var(--radius-sm); padding:13px 16px; }
.newsletter-form input:focus{ border-color:var(--accent); }

/* ---------------- 20. FOOTER ---------------- */
footer{ border-top:1px solid var(--line); padding-block:64px 28px; }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:40px; margin-bottom:48px; }
.footer-brand p{ color:var(--text-muted); font-size:14px; margin:14px 0 20px; max-width:280px; }
.footer-social{ display:flex; gap:10px; }
.footer-col h4{ font-size:13px; text-transform:uppercase; letter-spacing:.06em; color:var(--text-faint); font-family:var(--font-mono); margin-bottom:16px; }
.footer-col a{ display:block; font-size:14px; color:var(--text-muted); margin-bottom:11px; transition:color var(--dur-fast) var(--ease); }
.footer-col a:hover{ color:var(--accent); }
.footer-bottom{ display:flex; justify-content:space-between; align-items:center; padding-top:28px; border-top:1px solid var(--line); flex-wrap:wrap; gap:12px; }
.footer-bottom p{ font-size:13px; color:var(--text-faint); }
.footer-legal{ display:flex; gap:20px; }
.footer-legal a{ font-size:13px; color:var(--text-faint); }
.footer-legal a:hover{ color:var(--accent); }
@media (max-width:800px){ .footer-grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:500px){ .footer-grid{ grid-template-columns:1fr; } }

/* ---------------- 21. FLOATING ELEMENTS ---------------- */
.floating-stack{ position:fixed; bottom:26px; right:26px; z-index:900; display:flex; flex-direction:column; gap:14px; align-items:flex-end; }
.fab{
  width:52px; height:52px; border-radius:50%; display:flex; align-items:center; justify-content:center;
  box-shadow:0 8px 24px rgba(0,0,0,.35); transition:transform var(--dur-fast) var(--ease), opacity var(--dur) var(--ease);
}
.fab:hover{ transform:translateY(-3px) scale(1.05); }
#back-to-top{ background:var(--surface); border:1px solid var(--line-strong); color:var(--text); opacity:0; pointer-events:none; }
#back-to-top.visible{ opacity:1; pointer-events:auto; }
#back-to-top svg{ width:18px; height:18px; }
#hire-fab{ background:var(--accent); color:#0B0D10; }
#hire-fab svg{ width:20px; height:20px; }
#whatsapp-fab{ background:#25D366; color:#08210F; }
#whatsapp-fab svg{ width:20px; height:20px; }

/* Toasts */
#toast-region{ position:fixed; top:20px; right:20px; z-index:1300; display:flex; flex-direction:column; gap:10px; }
.toast{
  background:var(--bg-raised); border:1px solid var(--line-strong); border-left:3px solid var(--accent);
  border-radius:var(--radius-sm); padding:14px 18px; font-size:14px; min-width:260px; max-width:340px;
  box-shadow:0 10px 30px rgba(0,0,0,.3);
  animation:toastIn .3s var(--ease);
  display:flex; align-items:center; gap:10px;
}
.toast.error{ border-left-color:var(--danger); }
@keyframes toastIn{ from{ opacity:0; transform:translateX(24px); } to{ opacity:1; transform:translateX(0); } }
.toast.out{ animation:toastOut .3s var(--ease) forwards; }
@keyframes toastOut{ to{ opacity:0; transform:translateX(24px); } }

/* Cookie banner */
#cookie-banner{
  position:fixed; bottom:0; left:0; right:0; z-index:1250;
  background:var(--bg-raised); border-top:1px solid var(--line-strong);
  padding:20px var(--gutter); display:flex; align-items:center; justify-content:center; gap:20px; flex-wrap:wrap;
  transform:translateY(100%); transition:transform var(--dur-slow) var(--ease);
}
#cookie-banner.show{ transform:translateY(0); }
#cookie-banner p{ font-size:13.5px; color:var(--text-muted); max-width:520px; }
#cookie-banner .btn{ flex:none; }

/* Language switcher (visual only) */
.lang-switch{ position:relative; }
.lang-switch select{ border:1px solid var(--line); border-radius:20px; padding:8px 30px 8px 14px; font-size:12.5px; font-family:var(--font-mono); appearance:none; cursor:pointer; }

/* Scroll reveal */
.reveal{ opacity:0; transform:translateY(28px); transition:opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.visible{ opacity:1; transform:translateY(0); }
.reveal-stagger.visible > *{ transition-delay:calc(var(--i,0) * 70ms); }

/* Code snippet showcase (bonus) */
.code-showcase{ background:#0E1013; border:1px solid var(--line); border-radius:var(--radius-lg); overflow:hidden; margin-top:56px; }
.code-titlebar{ display:flex; align-items:center; gap:8px; padding:12px 16px; border-bottom:1px solid var(--line); }
.code-titlebar span{ width:10px; height:10px; border-radius:50%; }
.code-titlebar span:nth-child(1){ background:#F65F53; }
.code-titlebar span:nth-child(2){ background:#F5A623; }
.code-titlebar span:nth-child(3){ background:#3EDB6B; }
.code-titlebar em{ font-family:var(--font-mono); font-size:12px; color:var(--text-faint); margin-left:8px; font-style:normal; }
.code-showcase pre{ padding:22px; overflow-x:auto; font-family:var(--font-mono); font-size:13px; line-height:1.7; color:#B8C4D6; }
.code-showcase .tok-key{ color:#3ED6B5; }
.code-showcase .tok-str{ color:#F5A623; }
.code-showcase .tok-com{ color:#5B6270; }

/* GitHub contribution graph placeholder (bonus) */
.contrib-graph{ display:grid; grid-template-columns:repeat(26,1fr); gap:3px; margin-top:20px; }
.contrib-graph i{ aspect-ratio:1; border-radius:2px; background:var(--line); }
.contrib-graph i.l1{ background:var(--accent-soft); }
.contrib-graph i.l2{ background:color-mix(in srgb, var(--accent) 45%, var(--line)); }
.contrib-graph i.l3{ background:var(--accent-dim); }
.contrib-graph i.l4{ background:var(--accent); }

/* Cursor dot (bonus interactive cursor, desktop only) */
#cursor-dot{ position:fixed; width:8px; height:8px; border-radius:50%; background:var(--accent); pointer-events:none; z-index:9998; transform:translate(-50%,-50%); transition:transform .12s var(--ease), opacity .2s; mix-blend-mode:difference; }
#cursor-ring{ position:fixed; width:32px; height:32px; border-radius:50%; border:1px solid var(--accent); pointer-events:none; z-index:9998; transform:translate(-50%,-50%); transition:transform .18s var(--ease), width .2s, height .2s, opacity .2s; }
@media (hover:none), (max-width:900px){ #cursor-dot,#cursor-ring{ display:none; } }

/* Lazy image fade-in */
img.lazy{ opacity:0; transition:opacity .5s var(--ease); }
img.lazy.loaded{ opacity:1; }

/* Responsive base */
@media (max-width:1040px){
  .about-values{ grid-template-columns:1fr; }
}