/*
Theme Name: Intentionally Blank
Theme URI: https://www.nilovelez.com/blank/
Author: Nilo Velez
Author URI: https://www.nilovelez.com/
Description: This theme was intentionally left blank. There are times when all you need is the WordPress dashboard and an blank frontend. You might be using the WordPress REST API as a backend for a mobile App or you might be a minimalism obsessed hipster. This is your theme.
Version: 3.1.1
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Tags: featured-images, custom-background, theme-options, translation-ready
Text Domain: intentionally-blank
Requires at least: 4.6
Tested up to: 6.6
Requires PHP: 7.4
*/

/* ============================================
   NABU TUTOR v3 — APPLE-LEVEL SCROLL
   ============================================ */

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

:root {
  --bg: #050809;
  --bg-surface: #0a0f14;
  --bg-card: #0f1520;
  --bg-card-hover: #151d2b;
  --border: #172033;
  --border-hover: #1f2d45;
  --text-1: #e4e8f1;
  --text-2: #7a8496;
  --text-3: #454f60;
  --accent: #5B8DEF;
  --accent-lt: #7BA8F7;
  --accent-dk: #3A6BD4;
  --accent-glow: rgba(91, 141, 239, 0.12);
  --violet: #a78bfa;
  --serif: 'Instrument Serif', Georgia, serif;
  --sans: 'DM Sans', system-ui, sans-serif;
  --mono: 'JetBrains Mono', monospace;
  --expo: cubic-bezier(0.16, 1, 0.3, 1);
}

::selection { background: var(--accent); color: var(--bg); }
html { font-size: 16px; }

body {
  font-family: var(--sans);
  background: var(--bg) !important;
  color: var(--text-1);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body::after {
  content:'';
  position:fixed; inset:0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.02'/%3E%3C/svg%3E");
  pointer-events:none; z-index:9999;
}

a { color:inherit; text-decoration:none; }
img { max-width:100%; display:block; }

.wrap { max-width:1200px; margin:0 auto; padding:0 clamp(1.5rem, 4vw, 3rem); }

/* Hide WP admin bar */
#wpadminbar { display:none !important; }
html { margin-top:0 !important; }

.sr { opacity:0; transform:translateY(60px); }

.grad-text {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-lt) 40%, var(--violet) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============ NAV ============ */
.nav {
  position:fixed; top:0; left:0; width:100%; z-index:1000;
  padding:1.25rem 0; transition:all 0.6s var(--expo);
}
.nav.scrolled {
  background:rgba(5,8,9,0.75);
  backdrop-filter:blur(30px) saturate(1.4);
  -webkit-backdrop-filter:blur(30px) saturate(1.4);
  border-bottom:1px solid var(--border); padding:0.75rem 0;
}
.nav-inner {
  display:flex; align-items:center; justify-content:space-between;
  max-width:1200px; margin:0 auto; padding:0 clamp(1.5rem, 4vw, 3rem);
}
.nav-logo {
  display:flex; align-items:center; gap:0.75rem;
  font-family:var(--serif); font-size:1.5rem; color:var(--text-1);
}
.nav-logo img { width:36px; height:36px; border-radius:8px; }
.nav-links { display:flex; align-items:center; gap:2.5rem; list-style:none; }
.nav-links a { font-size:0.85rem; font-weight:450; color:var(--text-2); transition:color 0.3s; letter-spacing:0.02em; }
.nav-links a:hover { color:var(--text-1); }
.btn-cta {
  padding:0.625rem 1.5rem; background:var(--accent); color:#000 !important;
  font-family:var(--sans); font-size:0.85rem; font-weight:600;
  border-radius:100px; border:none; cursor:pointer;
  transition:all 0.35s var(--expo); display:inline-flex; align-items:center; gap:0.4rem;
}
.btn-cta:hover { background:var(--accent-lt); box-shadow:0 8px 30px rgba(91,141,239,0.25); transform:translateY(-1px); }
.nav-toggle { display:none; flex-direction:column; gap:5px; background:none; border:none; cursor:pointer; padding:4px; }
.nav-toggle span { width:24px; height:2px; background:var(--text-1); border-radius:2px; }

/* ============ HERO ============ */
.hero-wrap { height:250vh; position:relative; }
.hero {
  height:100vh; display:flex; align-items:center;
  position:relative; overflow:hidden; will-change:transform, opacity;
}
.hero-glow { position:absolute; border-radius:50%; filter:blur(120px); pointer-events:none; }
.hero-glow-1 {
  width:700px; height:700px;
  background:radial-gradient(circle, rgba(91,141,239,0.1) 0%, transparent 70%);
  top:-20%; right:-10%;
}
.hero-glow-2 {
  width:500px; height:500px;
  background:radial-gradient(circle, rgba(167,139,250,0.06) 0%, transparent 70%);
  bottom:-10%; left:-8%;
}
.hero-inner {
  display:grid; grid-template-columns:1.1fr 0.9fr;
  gap:clamp(3rem,6vw,5rem); align-items:center; position:relative; z-index:2;
}
.hero-badge {
  display:inline-flex; align-items:center; gap:0.5rem;
  padding:0.45rem 1.15rem; background:var(--accent-glow);
  border:1px solid rgba(91,141,239,0.18); border-radius:100px;
  font-size:0.78rem; font-weight:500; color:var(--accent-lt);
  letter-spacing:0.04em; margin-bottom:2rem; opacity:0; transform:translateY(20px);
}
.hero-badge::before { content:'\2726'; font-size:0.65rem; }
.hero-title {
  font-family:var(--serif); font-size:clamp(3rem, 5.8vw, 5rem);
  line-height:1.04; letter-spacing:-0.035em; margin-bottom:1.75rem;
}
.hero-title .word { display:inline-block; opacity:0; transform:translateY(25px); margin-right:0.25em; }
.hero-title .line-break { display:block; }
.hero-sub {
  font-size:1.1rem; line-height:1.75; color:var(--text-2);
  max-width:460px; margin-bottom:2.5rem; opacity:0; transform:translateY(20px);
}
.hero-sub strong { color:var(--text-1); font-weight:500; }
.hero-btns { display:flex; gap:1rem; flex-wrap:wrap; opacity:0; transform:translateY(20px); }
.btn-hero {
  padding:0.9rem 2.2rem; background:var(--accent); color:var(--bg);
  font-family:var(--sans); font-size:0.95rem; font-weight:600;
  border-radius:100px; border:none; cursor:pointer;
  transition:all 0.35s var(--expo); display:inline-flex; align-items:center; gap:0.5rem;
}
.btn-hero:hover { background:var(--accent-lt); transform:translateY(-2px); box-shadow:0 14px 40px rgba(91,141,239,0.3); }
.btn-ghost {
  padding:0.9rem 2.2rem; background:transparent; color:var(--text-1);
  font-family:var(--sans); font-size:0.95rem; font-weight:500;
  border-radius:100px; border:1px solid var(--border-hover); cursor:pointer;
  transition:all 0.35s var(--expo);
}
.btn-ghost:hover { border-color:var(--text-2); background:rgba(255,255,255,0.02); }

/* Chat */
.hero-chat { opacity:0; transform:translateY(50px) scale(0.93); }
.chat-win {
  background:var(--bg-surface); border:1px solid var(--border); border-radius:18px;
  overflow:hidden; box-shadow:0 40px 80px -20px rgba(0,0,0,0.6), 0 0 0 1px rgba(255,255,255,0.02);
}
.chat-bar { display:flex; align-items:center; gap:8px; padding:0.9rem 1.2rem; border-bottom:1px solid var(--border); }
.cd { width:10px; height:10px; border-radius:50%; }
.cd-r { background:#ff5f57; } .cd-y { background:#febc2e; } .cd-g { background:#28c840; }
.chat-bd { padding:1.25rem; display:flex; flex-direction:column; gap:0.9rem; }
.cm { display:flex; gap:0.7rem; max-width:88%; }
.cm-u { align-self:flex-end; flex-direction:row-reverse; }
.cm-av {
  width:26px; height:26px; border-radius:7px;
  display:flex; align-items:center; justify-content:center;
  font-size:0.6rem; font-weight:700; flex-shrink:0;
}
.cm-u .cm-av { background:var(--violet); color:#fff; }
.cm-a .cm-av { background:var(--accent-dk); color:#fff; }
.cm-bbl { padding:0.8rem 1rem; border-radius:11px; font-size:0.84rem; line-height:1.6; }
.cm-u .cm-bbl { background:var(--bg-card); border:1px solid var(--border); }
.cm-a .cm-bbl { background:rgba(91,141,239,0.05); border:1px solid rgba(91,141,239,0.1); }
.cm-bbl strong { color:var(--accent-lt); font-weight:600; }
.cm-bbl em { color:var(--text-2); }

/* ============ SHARED ============ */
.s-label {
  font-family:var(--mono); font-size:0.68rem; font-weight:500;
  letter-spacing:0.16em; text-transform:uppercase;
  color:var(--accent); margin-bottom:1.25rem;
}
.s-heading {
  font-family:var(--serif); font-size:clamp(2rem, 4vw, 3.5rem);
  line-height:1.1; letter-spacing:-0.025em; color:var(--text-1); margin-bottom:1.25rem;
}
.s-body { font-size:1.05rem; line-height:1.75; color:var(--text-2); }
.divider {
  max-width:1200px; margin:0 auto; height:1px;
  background:linear-gradient(90deg, transparent, var(--border) 25%, var(--border) 75%, transparent);
}

/* ============ STATS ============ */
.section-stats { padding:8rem 0; }
.stats-grid { display:grid; grid-template-columns:1fr 1.2fr; gap:4rem; align-items:center; }
.stats-chart {
  border-radius:16px; overflow:hidden; border:1px solid var(--border);
  box-shadow:0 30px 70px -20px rgba(0,0,0,0.5);
}
.stats-chart img { width:100%; }

/* ============ STICKY FEATURES ============ */
.section-features { padding:0; }
.features-intro { text-align:center; padding:8rem 0 4rem; }
.features-intro .s-body { max-width:460px; margin:0 auto; }
.features-sticky { position:relative; }
.features-grid { display:grid; grid-template-columns:1.3fr 0.7fr; gap:0; }

.features-device-col {
  position:sticky; top:0; height:100vh;
  display:flex; align-items:center; justify-content:center; z-index:2;
  padding: 2rem;
}

/* Laptop mockup */
.laptop-frame {
  width:100%;
  max-width:560px;
  filter: drop-shadow(0 40px 80px rgba(0,0,0,0.5));
}

.laptop-bezel {
  background: linear-gradient(180deg, #2a2e38 0%, #1e2028 100%);
  border-radius: 12px 12px 0 0;
  padding: 8px 0;
  display: flex;
  justify-content: center;
  border: 1px solid rgba(255,255,255,0.06);
  border-bottom: none;
}

.laptop-camera {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #1a1c22;
  border: 1px solid #333840;
}

.laptop-screen-wrap {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--bg);
  border-left: 1px solid rgba(255,255,255,0.06);
  border-right: 1px solid rgba(255,255,255,0.06);
}

.device-screen {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
  opacity: 0;
  transition: opacity 0.6s ease;
}

.device-screen.active { opacity: 1; }

.laptop-base {
  height: 14px;
  background: linear-gradient(180deg, #1e2028 0%, #16181e 100%);
  border-radius: 0 0 4px 4px;
  border: 1px solid rgba(255,255,255,0.06);
  border-top: 1px solid #333840;
  display: flex;
  justify-content: center;
  align-items: center;
}

.laptop-notch {
  width: 80px;
  height: 4px;
  background: #2a2e38;
  border-radius: 0 0 4px 4px;
}

.features-text-col { padding-right:clamp(1.5rem, 4vw, 3rem); }

.feature-block {
  min-height:100vh; display:flex; flex-direction:column;
  justify-content:center; padding:4rem 2rem 4rem 4rem;
  opacity:0.25; transition:opacity 0.5s ease;
}
.feature-block.active { opacity:1; }
.fb-icon {
  width:52px; height:52px; border-radius:14px;
  display:flex; align-items:center; justify-content:center;
  font-size:1.4rem; margin-bottom:1.5rem;
  background:var(--accent-glow); border:1px solid rgba(91,141,239,0.12);
}
.feature-block h3 {
  font-family:var(--serif); font-size:clamp(1.5rem, 2.5vw, 2rem);
  color:var(--text-1); margin-bottom:1rem; line-height:1.2;
}
.feature-block p { font-size:1rem; line-height:1.7; color:var(--text-2); max-width:380px; }

/* ============ COMPARISON ============ */
.section-comparison { padding:8rem 0; }
.comp-box {
  background:var(--bg-surface); border:1px solid var(--border);
  border-radius:20px; padding:2.5rem; overflow:hidden;
}
.comp-box img { width:100%; border-radius:12px; }
.comp-caption {
  margin-top:2rem; text-align:center; font-size:1rem; line-height:1.65;
  color:var(--text-2); max-width:680px; margin-left:auto; margin-right:auto;
}
.comp-caption strong { color:var(--accent-lt); font-weight:500; }

/* ============ TECH ============ */
.section-tech { padding:8rem 0; }
.tech-header { text-align:center; margin-bottom:1rem; }
.tech-sub {
  font-family:var(--serif); font-style:italic;
  font-size:clamp(1.1rem, 2vw, 1.35rem);
  color:var(--accent); text-align:center; margin-bottom:4rem;
}
.tech-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:1.25rem; }
.tech-card {
  background:var(--bg-card); border:1px solid var(--border);
  border-radius:16px; padding:2.5rem 2rem; text-align:center;
  transition:all 0.45s var(--expo);
}
.tech-card:hover { border-color:var(--border-hover); transform:translateY(-6px); box-shadow:0 25px 60px -15px rgba(0,0,0,0.35); }
.tc-icon { font-size:2rem; margin-bottom:1.25rem; display:block; }
.tech-card h3 { font-size:1.05rem; font-weight:600; color:var(--text-1); margin-bottom:0.75rem; }
.tech-card p { font-size:0.9rem; line-height:1.65; color:var(--text-2); }

/* ============ STEPS ============ */
.section-steps { padding:8rem 0; }
.steps-header { text-align:center; margin-bottom:5rem; }
.steps-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:2rem; position:relative; }
.steps-grid::before {
  content:''; position:absolute; top:2.25rem;
  left:16.67%; right:16.67%; height:1px;
  background:linear-gradient(90deg, var(--border), var(--accent-dk), var(--border));
}
.step-item { text-align:center; position:relative; }
.step-num {
  display:inline-flex; align-items:center; justify-content:center;
  width:4.5rem; height:4.5rem; border-radius:50%;
  border:1px solid var(--accent-dk); background:var(--bg);
  font-family:var(--mono); font-size:0.75rem; font-weight:500;
  color:var(--accent); margin-bottom:1.75rem; position:relative; z-index:2;
}
.step-item h3 { font-family:var(--serif); font-size:1.5rem; color:var(--text-1); margin-bottom:0.75rem; }
.step-item p { font-size:0.95rem; line-height:1.65; color:var(--text-2); max-width:300px; margin:0 auto; }

/* ============ TEAM ============ */
.section-team { padding:8rem 0; }
.team-header { text-align:center; margin-bottom:4rem; }
.team-sub {
  font-family:var(--serif); font-style:italic;
  font-size:1.1rem; color:var(--text-2); text-align:center;
  margin-top:-0.5rem; margin-bottom:4rem;
}
.team-label {
  font-family:var(--mono); font-size:0.68rem; font-weight:500;
  letter-spacing:0.15em; text-transform:uppercase;
  color:var(--accent); text-align:center; margin-bottom:2.5rem;
}
.team-row { display:grid; grid-template-columns:repeat(2,1fr); gap:1.5rem; max-width:800px; margin:0 auto; }
.team-row.mb { margin-bottom:5rem; }
.team-row-single { display:grid; grid-template-columns:1fr; max-width:400px; margin:0 auto; }
.team-row-single.mb { margin-bottom:5rem; }
.team-row-3 { display:grid; grid-template-columns:repeat(3,1fr); gap:1.5rem; max-width:1200px; margin:0 auto; }
.team-row-3.mb { margin-bottom:5rem; }
.tc2-sm {
  background:var(--bg-card); border:1px solid var(--border); border-radius:14px;
  padding:1.5rem 1.25rem; display:flex; flex-direction:column; align-items:center;
  text-align:center; transition:all 0.45s var(--expo);
}
.tc2-sm:hover { border-color:var(--border-hover); transform:translateY(-4px); box-shadow:0 25px 60px -15px rgba(0,0,0,0.35); }
.tc2-sm-img {
  width:72px; height:72px; border-radius:50%; object-fit:cover;
  border:2px solid var(--border); margin-bottom:1rem;
  filter:grayscale(0.15); transition:filter 0.4s;
}
.tc2-sm:hover .tc2-sm-img { filter:grayscale(0); }
.tc2-sm .tc2-role { font-size:0.62rem; }
.tc2-sm h3 { font-family:var(--serif); font-size:1.1rem; color:var(--text-1); margin-bottom:0.5rem; }
.tc2-sm p { font-size:0.78rem; line-height:1.6; color:var(--text-2); margin-bottom:0.75rem; }
.tc2 {
  background:var(--bg-card); border:1px solid var(--border); border-radius:16px;
  padding:2rem; display:flex; flex-direction:column; align-items:center;
  text-align:center; transition:all 0.45s var(--expo);
}
.tc2:hover { border-color:var(--border-hover); transform:translateY(-6px); box-shadow:0 25px 60px -15px rgba(0,0,0,0.35); }
.tc2-img {
  width:96px; height:96px; border-radius:50%; object-fit:cover;
  border:2px solid var(--border); margin-bottom:1.25rem;
  filter:grayscale(0.15); transition:filter 0.4s;
}
.tc2:hover .tc2-img { filter:grayscale(0); }
.tc2-role {
  font-family:var(--mono); font-size:0.68rem; letter-spacing:0.1em;
  text-transform:uppercase; color:var(--accent); margin-bottom:0.5rem;
}
.tc2 h3 { font-family:var(--serif); font-size:1.3rem; color:var(--text-1); margin-bottom:0.75rem; }
.tc2 p { font-size:0.84rem; line-height:1.6; color:var(--text-2); margin-bottom:1rem; }
.tc2-link { font-size:0.8rem; font-weight:500; color:var(--accent); transition:color 0.3s; }
.tc2-link:hover { color:var(--accent-lt); }
.team-backed { text-align:center; margin-top:2.5rem; font-size:0.95rem; color:var(--text-2); }
.team-backed strong { color:var(--accent-lt); font-weight:500; }

/* ============ FAQ ============ */
.section-faq { padding:8rem 0; }
.faq-header { text-align:center; margin-bottom:4rem; }
.faq-list { max-width:720px; margin:0 auto; }
.faq-item { border-bottom:1px solid var(--border); }
.faq-item:first-child { border-top:1px solid var(--border); }
.faq-q {
  width:100%; background:none; border:none; padding:1.5rem 0;
  display:flex; align-items:center; justify-content:space-between;
  cursor:pointer; font-family:var(--sans); font-size:1.05rem;
  font-weight:500; color:var(--text-1); text-align:left; transition:color 0.3s; gap:1rem;
}
.faq-q:hover { color:var(--accent-lt); }
.faq-plus {
  width:28px; height:28px; border-radius:50%; border:1px solid var(--border-hover);
  display:flex; align-items:center; justify-content:center;
  font-size:1.1rem; color:var(--text-3); flex-shrink:0; transition:all 0.35s var(--expo);
}
.faq-item.open .faq-plus { border-color:var(--accent); color:var(--accent); transform:rotate(45deg); }
.faq-a { max-height:0; overflow:hidden; transition:max-height 0.5s var(--expo); }
.faq-a-inner { padding-bottom:1.5rem; font-size:0.95rem; line-height:1.7; color:var(--text-2); }

/* ============ FOOTER ============ */
.footer { padding:4rem 0; border-top:1px solid var(--border); }
.footer-inner { display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:1.5rem; }
.footer-links { display:flex; gap:2rem; list-style:none; }
.footer-links a { font-size:0.85rem; color:var(--text-2); transition:color 0.3s; }
.footer-links a:hover { color:var(--text-1); }
.footer-copy { font-size:0.8rem; color:var(--text-3); }

/* ============ RESPONSIVE ============ */
@media(max-width:900px){
  .hero-inner { grid-template-columns:1fr; gap:3rem; }
  .hero-wrap { height:auto; }
  .hero { min-height:100vh; height:auto; padding:7rem 0 4rem; }
  .stats-grid { grid-template-columns:1fr; gap:3rem; }
  .tech-grid { grid-template-columns:1fr 1fr; }
  .steps-grid { grid-template-columns:1fr; gap:3rem; }
  .steps-grid::before { display:none; }
  .team-row { grid-template-columns:1fr; max-width:400px; }
  .team-row-3 { grid-template-columns:1fr; max-width:400px; }
  .team-row-single { max-width:400px; }
  .nav-links { display:none; }
  .nav-toggle { display:flex; }
  .features-grid { grid-template-columns:1fr; }
  .features-device-col { position:relative; height:auto; padding:2rem 1rem; order:-1; }
  .feature-block { min-height:auto; padding:3rem 1.5rem; opacity:1; }
  .features-text-col { padding-right:0; }
}

@media(max-width:600px){
  .tech-grid { grid-template-columns:1fr; }
  .comp-box { padding:1.25rem; }
  .footer-inner { flex-direction:column; text-align:center; }
}