/* =============================================
   AUTO SERVICIOS VILLALOBOS C.A. — STYLES
   Paleta: Azul marino · Plata · Azul gradient
   ============================================= */

:root {
  --bg:          #060c1e;
  --bg2:         #0a1228;
  --bg3:         #0e1932;
  --surface:     #121e3a;
  --surface2:    #182848;
  --border:      #1e3268;
  --border-light:#2a4490;

  /* Logo blues */
  --navy:        #001060;
  --blue:        #1840b0;
  --blue-mid:    #2a58c8;
  --blue-light:  #4a80f0;
  --blue-glow:   rgba(42, 88, 200, 0.35);

  /* Logo silver / chrome */
  --silver:      #8898b8;
  --silver-light:#b8c8e0;
  --silver-glow: rgba(184, 200, 224, 0.15);

  /* Accent — bright logo rim blue */
  --accent:      #4a80f0;
  --accent-hover:#6a98ff;
  --accent-glow: rgba(74, 128, 240, 0.3);

  /* Text */
  --text:        #dde6f5;
  --text-dim:    #7888aa;
  --text-muted:  #3a4868;
  --white:       #ffffff;

  --radius:      12px;
  --radius-lg:   20px;
  --shadow:      0 4px 24px rgba(0,0,0,0.5);
  --shadow-lg:   0 8px 48px rgba(0,0,0,0.6);
  --transition:  0.25s cubic-bezier(0.4,0,0.2,1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Source Sans 3', sans-serif;
  font-weight: 300;
  line-height: 1.65;
  overflow-x: hidden;
}

h1,h2,h3,h4,h5 {
  font-family: 'Oswald', sans-serif;
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: 0.02em;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
p { color: var(--text-dim); }

.accent { color: var(--accent); }
.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }

/* ===================== NAVBAR ===================== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 0 1.5rem;
  background: rgba(6,10,24,0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.navbar.scrolled {
  background: #070d1f;
  backdrop-filter: blur(18px);
  border-color: var(--border-light);
  box-shadow: 0 2px 20px rgba(0,0,0,0.5);
}
.nav-inner {
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  height: 72px; gap: 2rem;
}
.nav-logo {
  display: flex; align-items: center; gap: 0.7rem;
  flex-shrink: 0;
}
.nav-logo img {
  height: 50px; width: auto;
  display: block;
  clip-path: ellipse(44% 22% at 50% 46%);
  filter: drop-shadow(0 0 6px rgba(74,128,240,0.5));
}
.nav-logo-text {
  display: flex; flex-direction: column; line-height: 1.2;
}
.nav-logo-text .line1 {
  font-family: 'Oswald', sans-serif; font-size: 0.68rem; font-weight: 400;
  color: var(--silver); letter-spacing: 0.14em; text-transform: uppercase;
}
.nav-logo-text .line2 {
  font-family: 'Oswald', sans-serif; font-size: 1.05rem; font-weight: 700;
  color: var(--white); letter-spacing: 0.04em; text-transform: uppercase;
}
.nav-logo-text .line3 {
  font-size: 0.65rem; color: var(--text-muted); letter-spacing: 0.06em;
}

.nav-links {
  display: flex; align-items: center; gap: 0.25rem; list-style: none;
}
.nav-links a {
  padding: 0.4rem 0.9rem; border-radius: 6px;
  font-size: 0.9rem; font-weight: 400; color: var(--text-dim);
  transition: color var(--transition), background var(--transition);
}
.nav-links a:hover { color: var(--text); background: var(--surface); }
.btn-nav {
  background: var(--blue) !important; color: var(--white) !important;
  font-weight: 600 !important; padding: 0.5rem 1.2rem !important;
  border: 1px solid var(--blue-mid) !important;
}
.btn-nav:hover { background: var(--blue-mid) !important; }

.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.nav-toggle span {
  display: block; width: 24px; height: 2px;
  background: var(--text); border-radius: 2px;
  transition: var(--transition);
}

/* ===================== HERO ===================== */
.hero {
  min-height: 100vh; position: relative;
  display: flex; align-items: center;
  padding: 100px 1.5rem 60px;
  overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px; opacity: 0.22;
  mask-image: radial-gradient(ellipse at 40% 50%, black 20%, transparent 80%);
}
.hero-glow {
  position: absolute; top: 10%; left: 20%;
  width: 600px; height: 500px;
  background: radial-gradient(ellipse, var(--blue-glow) 0%, transparent 65%);
  filter: blur(50px);
}
.hero-glow2 {
  position: absolute; bottom: 10%; right: 5%;
  width: 300px; height: 300px;
  background: radial-gradient(ellipse, var(--silver-glow) 0%, transparent 70%);
  filter: blur(40px);
}
.hero-content {
  position: relative; z-index: 2;
  max-width: 1200px; margin: 0 auto; width: 100%;
  display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.35rem 1rem; border-radius: 50px;
  border: 1px solid var(--border-light); font-size: 0.82rem; color: var(--silver);
  margin-bottom: 1.2rem; background: var(--surface);
}
.hero-title { font-size: clamp(2.4rem, 5vw, 3.8rem); line-height: 1.1; margin-bottom: 1.2rem; }
.hero-sub { font-size: 1.05rem; color: var(--text-dim); max-width: 520px; margin-bottom: 2rem; line-height: 1.7; }
.hero-ctas { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 2.5rem; }

.btn-primary {
  display: inline-flex; align-items: center; gap: 0.5rem;
  background: linear-gradient(135deg, var(--blue), var(--blue-mid));
  color: var(--white); padding: 0.78rem 1.8rem; border-radius: 8px;
  font-family: 'Oswald', sans-serif; font-size: 1rem; font-weight: 600;
  letter-spacing: 0.04em; transition: var(--transition);
  border: 1px solid var(--blue-mid);
  box-shadow: 0 4px 16px var(--blue-glow);
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--blue-mid), var(--blue-light));
  transform: translateY(-1px); box-shadow: 0 6px 24px var(--accent-glow);
}
.btn-ghost {
  display: inline-flex; align-items: center;
  padding: 0.78rem 1.8rem; border-radius: 8px;
  font-family: 'Oswald', sans-serif; font-size: 1rem; font-weight: 500;
  border: 1px solid var(--border-light); color: var(--silver-light);
  transition: var(--transition);
}
.btn-ghost:hover { border-color: var(--blue-light); color: var(--white); }

.hero-stats { display: flex; align-items: center; gap: 2rem; flex-wrap: wrap; }
.stat { text-align: left; }
.stat-n {
  display: block; font-family: 'Oswald', sans-serif; font-size: 2rem; font-weight: 700;
  background: linear-gradient(135deg, var(--white), var(--silver-light));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.stat-l { font-size: 0.78rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.08em; }
.stat-div { width: 1px; height: 40px; background: var(--border-light); }

.hero-visual { display: flex; justify-content: center; align-items: center; }
.car-diagram { width: 100%; max-width: 420px; }
.ford-svg { width: 100%; filter: drop-shadow(0 0 24px var(--blue-glow)); }

@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0.2} }
.blink { animation: blink 1.5s ease-in-out infinite; }
@keyframes dash-move { to { stroke-dashoffset: -20; } }
.data-line { animation: dash-move 1.5s linear infinite; }

/* ===================== SECTIONS ===================== */
.section { padding: 6rem 1.5rem; }
.section-dark { background: var(--bg2); }

.section-header { text-align: center; margin-bottom: 3.5rem; }
.section-tag {
  display: inline-block; padding: 0.25rem 0.9rem; border-radius: 50px;
  background: rgba(74,128,240,0.12); border: 1px solid var(--border-light);
  font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--accent); font-weight: 600; margin-bottom: 0.8rem;
}
.section-title { font-size: clamp(1.8rem, 3.5vw, 2.6rem); margin-bottom: 0.8rem; }
.section-desc { color: var(--text-dim); max-width: 560px; margin: 0 auto; font-size: 1rem; }

/* ===================== ABOUT ===================== */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start; }
.about-text p { margin-bottom: 1rem; font-size: 1.02rem; }
.about-text strong { color: var(--text); font-weight: 600; }
.about-badges { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.5rem; }
.badge {
  padding: 0.35rem 0.85rem; border-radius: 6px;
  background: var(--surface); border: 1px solid var(--border-light);
  font-size: 0.82rem; color: var(--silver-light); font-weight: 600;
}
.about-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.about-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.4rem; transition: var(--transition);
}
.about-card:hover { border-color: var(--blue-light); transform: translateY(-2px); box-shadow: 0 4px 20px var(--blue-glow); }
.ac-icon { font-size: 1.8rem; margin-bottom: 0.7rem; }
.about-card h3 { font-size: 1rem; margin-bottom: 0.4rem; color: var(--white); }
.about-card p { font-size: 0.87rem; line-height: 1.5; }

/* ===================== INSTRUCTOR ===================== */
.instructor-layout { display: grid; grid-template-columns: 300px 1fr; gap: 4rem; align-items: center; }
.instructor-avatar-wrap { text-align: center; }
.instructor-avatar {
  width: 220px; height: 220px; margin: 0 auto 1rem;
  border-radius: 50%; overflow: hidden; background: var(--surface);
  box-shadow: 0 0 0 2px var(--blue-mid), 0 0 40px var(--blue-glow);
}
.instructor-avatar svg { width: 100%; height: 100%; }
.instructor-name-card h3 { font-size: 1.2rem; color: var(--white); margin-bottom: 0.2rem; }
.instructor-name-card p { font-size: 0.85rem; color: var(--accent); }
.inst-title { font-size: 1.4rem; margin-bottom: 1rem; color: var(--white); }
.instructor-info p { margin-bottom: 1rem; font-size: 1rem; }
.inst-specs { display: flex; flex-direction: column; gap: 0.7rem; margin-top: 1.5rem; }
.inst-spec { display: flex; gap: 1rem; align-items: baseline; padding-bottom: 0.7rem; border-bottom: 1px solid var(--border); }
.spec-label { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-muted); min-width: 120px; }
.spec-val { font-size: 0.92rem; color: var(--text); }

/* ===================== COURSES ===================== */
.courses-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1.5rem; }
.course-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden;
  transition: var(--transition); display: flex; flex-direction: column;
}
.course-card:hover { transform: translateY(-4px); box-shadow: 0 8px 40px var(--blue-glow); border-color: var(--border-light); }
.cc-header { padding: 2rem 1.8rem 1.5rem; display: flex; justify-content: space-between; align-items: flex-start; }
.cc-blue   { background: linear-gradient(135deg, #001060, #0d2070); }
.cc-silver { background: linear-gradient(135deg, #0e1e48, #1a3070); }
.cc-teal   { background: linear-gradient(135deg, #091840, #122060); }
.cc-number { font-family: 'Oswald', sans-serif; font-size: 2.5rem; font-weight: 700; color: rgba(255,255,255,0.12); line-height: 1; }
.cc-icon { font-size: 2rem; }
.cc-body { padding: 1.5rem 1.8rem 2rem; flex: 1; display: flex; flex-direction: column; }
.cc-level { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--accent); font-weight: 600; }
.cc-title { font-size: 1.15rem; color: var(--white); margin: 0.5rem 0 0.8rem; line-height: 1.25; }
.cc-desc { font-size: 0.9rem; color: var(--text-dim); margin-bottom: 1.2rem; flex: 1; }
.cc-topics { list-style: none; margin-bottom: 1.8rem; display: flex; flex-direction: column; gap: 0.4rem; }
.cc-topics li { font-size: 0.85rem; color: var(--text-dim); padding-left: 1.2rem; position: relative; }
.cc-topics li::before { content: '▸'; position: absolute; left: 0; color: var(--accent); font-size: 0.7rem; top: 0.15em; }
.btn-course {
  display: inline-block; padding: 0.7rem 1.2rem; border-radius: 8px;
  background: transparent; border: 1px solid var(--border-light);
  font-size: 0.88rem; font-weight: 600; color: var(--silver-light);
  transition: var(--transition); text-align: center;
  font-family: 'Oswald', sans-serif; letter-spacing: 0.04em;
}
.btn-course:hover {
  background: linear-gradient(135deg, var(--blue), var(--blue-mid));
  border-color: var(--blue-mid); color: white; box-shadow: 0 4px 16px var(--blue-glow);
}

/* ===================== WHY US ===================== */
.why-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: center; }
.why-text .section-tag { text-align: left; display: inline-block; }
.why-text h2 { margin: 0.8rem 0; }
.why-list { display: flex; flex-direction: column; gap: 1.5rem; }
.why-item { display: flex; gap: 1.4rem; align-items: flex-start; }
.wi-num { font-family: 'Oswald', sans-serif; font-size: 1.8rem; font-weight: 700; color: var(--blue-light); opacity: 0.7; flex-shrink: 0; line-height: 1; min-width: 40px; }
.wi-content h4 { font-size: 1rem; color: var(--white); margin-bottom: 0.3rem; }
.wi-content p { font-size: 0.9rem; }

/* ===================== FORM ===================== */
.form-wrap { max-width: 780px; margin: 0 auto; }
.reserva-form {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 2.5rem;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; margin-bottom: 1.2rem; }
.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group.full { grid-column: 1/-1; margin-bottom: 1.5rem; }
.form-group label { font-size: 0.83rem; font-weight: 600; color: var(--silver); text-transform: uppercase; letter-spacing: 0.05em; }
.form-group input,
.form-group select,
.form-group textarea {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 8px; padding: 0.78rem 1rem;
  color: var(--text); font-size: 0.95rem;
  font-family: 'Source Sans 3', sans-serif;
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none; border-color: var(--blue-light);
  box-shadow: 0 0 0 3px rgba(74,128,240,0.18);
}
.form-group select option { background: var(--bg2); }
.form-group textarea { resize: vertical; min-height: 90px; }
.btn-submit {
  width: 100%; padding: 1rem 2rem; border-radius: 8px;
  background: #25D366; border: none; cursor: pointer; color: white;
  font-family: 'Oswald', sans-serif; font-size: 1.05rem; font-weight: 600;
  letter-spacing: 0.06em; display: flex; align-items: center; justify-content: center; gap: 0.7rem;
  transition: var(--transition);
}
.btn-submit:hover { background: #1fba57; transform: translateY(-1px); box-shadow: 0 4px 20px rgba(37,211,102,0.3); }

/* ===================== FOOTER ===================== */
.footer { background: var(--bg2); border-top: 1px solid var(--border); padding: 3rem 1.5rem; }
.footer-inner { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 3rem; max-width: 1200px; margin: 0 auto; }
.footer-brand { display: flex; flex-direction: column; gap: 0.6rem; }
.footer-logo { display: flex; align-items: center; gap: 0.8rem; margin-bottom: 0.4rem; }
.footer-logo img { height: 54px; width: auto; display: block; clip-path: ellipse(44% 22% at 50% 46%); filter: drop-shadow(0 0 5px rgba(74,128,240,0.4)); }
.footer-logo-text .flt-line1 { font-family:'Oswald',sans-serif; font-size:0.68rem; color:var(--silver); letter-spacing:0.12em; text-transform:uppercase; }
.footer-logo-text .flt-line2 { font-family:'Oswald',sans-serif; font-size:1rem; color:var(--white); font-weight:700; }
.footer-logo-text .flt-line3 { font-size:0.65rem; color:var(--text-muted); }
.footer-brand p { font-size: 0.85rem; color: var(--text-muted); }
.footer-links, .footer-contact { display: flex; flex-direction: column; gap: 0.6rem; }
.footer-links h4, .footer-contact h4 { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-muted); margin-bottom: 0.5rem; }
.footer-links a, .footer-contact a { font-size: 0.88rem; color: var(--text-dim); transition: color var(--transition); }
.footer-links a:hover, .footer-contact a:hover { color: var(--accent); }
.chrome-bar {
  height: 3px; width: 100%;
  background: linear-gradient(90deg, transparent 0%, var(--navy) 10%, var(--blue-mid) 35%, var(--silver-light) 50%, var(--blue-mid) 65%, var(--navy) 90%, transparent 100%);
}

/* ===================== COURSE PAGE ===================== */
.course-hero { padding: 120px 1.5rem 60px; position: relative; overflow: hidden; }
.course-hero-bg { position: absolute; inset: 0; background: linear-gradient(135deg, var(--bg) 40%, var(--bg3) 100%); }
.course-hero-bg::after {
  content:''; position:absolute; inset:0;
  background-image: linear-gradient(var(--border) 1px, transparent 1px), linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px; opacity: 0.15;
}
.course-hero-inner { position:relative; z-index:2; max-width:900px; margin:0 auto; }
.back-link { display:inline-flex; align-items:center; gap:0.4rem; font-size:0.85rem; color:var(--text-dim); margin-bottom:1.5rem; transition:color var(--transition); }
.back-link:hover { color: var(--accent); }
.course-level-tag { display:inline-block; padding:0.3rem 1rem; border-radius:50px; font-size:0.78rem; text-transform:uppercase; letter-spacing:0.1em; font-weight:700; margin-bottom:1rem; }
.tag-blue   { background:rgba(74,128,240,0.15); color:#7aa8ff; border:1px solid rgba(74,128,240,0.35); }
.tag-silver { background:rgba(184,200,224,0.12); color:#b8c8e0; border:1px solid rgba(184,200,224,0.3); }
.tag-teal   { background:rgba(42,88,200,0.15); color:#80a8ff; border:1px solid rgba(42,88,200,0.35); }
.course-hero-title { font-size:clamp(2rem,4vw,3.2rem); margin-bottom:1rem; }
.course-hero-desc { font-size:1.05rem; color:var(--text-dim); max-width:680px; line-height:1.75; }
.course-meta { display:flex; flex-wrap:wrap; gap:1.5rem; margin-top:2rem; padding-top:2rem; border-top:1px solid var(--border); }
.meta-item { display:flex; flex-direction:column; gap:0.2rem; }
.meta-label { font-size:0.7rem; text-transform:uppercase; letter-spacing:0.1em; color:var(--text-muted); }
.meta-val { font-size:0.95rem; color:var(--text); font-weight:600; }
.course-content { max-width:900px; margin:0 auto; }
.module-grid { display:grid; grid-template-columns:1fr 1fr; gap:1.2rem; }
.module-card { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); padding:1.5rem; transition:var(--transition); }
.module-card:hover { border-color:var(--blue-light); box-shadow:0 4px 20px var(--blue-glow); }
.module-num { font-family:'Oswald',sans-serif; font-size:0.75rem; font-weight:700; color:var(--accent); letter-spacing:0.1em; margin-bottom:0.5rem; }
.module-card h4 { font-size:1rem; color:var(--white); margin-bottom:0.8rem; }
.module-topics { list-style:none; display:flex; flex-direction:column; gap:0.3rem; }
.module-topics li { font-size:0.85rem; color:var(--text-dim); padding-left:1rem; position:relative; }
.module-topics li::before { content:'—'; position:absolute; left:0; color:var(--text-muted); }
.tools-grid { display:flex; flex-wrap:wrap; gap:0.7rem; }
.tool-tag { padding:0.4rem 1rem; border-radius:6px; background:var(--surface); border:1px solid var(--border-light); font-size:0.85rem; color:var(--silver-light); font-weight:600; }
.course-form-wrap { max-width:900px; margin:0 auto; }

/* ===================== RESPONSIVE ===================== */
@media (max-width: 1024px) {
  .courses-grid { grid-template-columns: 1fr 1fr; }
  .hero-content { grid-template-columns: 1fr; gap: 2rem; }
  .hero-visual { display: none; }
  .about-grid { grid-template-columns: 1fr; gap: 2rem; }
  .instructor-layout { grid-template-columns: 1fr; }
  .instructor-avatar-wrap { display:flex; align-items:center; gap:1.5rem; justify-content:flex-start; }
  .why-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .module-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .courses-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .nav-links { display:none; position:fixed; top:72px; left:0; right:0; background:rgba(6,12,30,0.98); backdrop-filter:blur(12px); flex-direction:column; padding:1.5rem; gap:0.5rem; border-bottom:1px solid var(--border); }
  .nav-links.open { display: flex; }
  .nav-links a { padding:0.75rem 1rem; font-size:1rem; }
  .nav-toggle { display: flex; }
  .hero-stats { gap: 1rem; }
  .instructor-avatar-wrap { flex-direction:column; text-align:center; }
  .footer-inner { grid-template-columns: 1fr; gap: 2rem; }
  .reserva-form { padding: 1.5rem; }
  .about-cards { grid-template-columns: 1fr; }
  .course-meta { gap: 1rem; }
  .nav-logo-text .line2 { font-size: 0.9rem; }
}
@media (max-width: 480px) {
  .hero-ctas { flex-direction: column; }
  .btn-primary, .btn-ghost { text-align:center; justify-content:center; }
  .hero-stats { flex-direction: column; gap: 0.8rem; }
  .stat-div { display: none; }
}

/* ===================== ANIMATIONS ===================== */
@keyframes fadeUp { from{opacity:0;transform:translateY(24px)} to{opacity:1;transform:translateY(0)} }
.fade-up { animation: fadeUp 0.6s ease both; }
.fade-up-d1 { animation-delay:0.1s; }
.fade-up-d2 { animation-delay:0.2s; }
.fade-up-d3 { animation-delay:0.3s; }
.reveal { opacity:0; transform:translateY(30px); transition:opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity:1; transform:none; }

/* ===================== SECOND INSTRUCTOR ===================== */
.instructors-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; margin-top: 3rem;
}
.instructor-block {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 2rem;
  transition: var(--transition);
}
.instructor-block:hover { border-color: var(--border-light); box-shadow: 0 4px 24px var(--blue-glow); }
.ib-top { display: flex; align-items: center; gap: 1.2rem; margin-bottom: 1.5rem; }
.ib-avatar {
  width: 80px; height: 80px; flex-shrink: 0;
  border-radius: 50%; overflow: hidden;
  box-shadow: 0 0 0 2px var(--border-light), 0 0 16px var(--blue-glow);
}
.ib-avatar svg { width: 100%; height: 100%; }
.ib-name h4 { font-size: 1.15rem; color: var(--white); margin-bottom: 0.2rem; }
.ib-name p { font-size: 0.82rem; color: var(--accent); }
.ib-tag { display: inline-block; padding: 0.2rem 0.7rem; border-radius: 50px; font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.1em; font-weight: 700; margin-bottom: 0.8rem; background: rgba(74,128,240,0.12); color: var(--accent); border: 1px solid var(--border-light); }
.instructor-block p { font-size: 0.92rem; margin-bottom: 0.7rem; }
.ib-specs { display: flex; flex-direction: column; gap: 0.5rem; margin-top: 1rem; }
.ib-spec { display: flex; gap: 0.8rem; font-size: 0.85rem; padding-bottom: 0.5rem; border-bottom: 1px solid var(--border); }
.ib-spec:last-child { border-bottom: none; }
.ib-spec .sl { color: var(--text-muted); min-width: 100px; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.06em; }
.ib-spec .sv { color: var(--text); }
.ib-placeholder { border-style: dashed; opacity: 0.7; }
.ib-placeholder .ib-name h4 { color: var(--silver); }
.placeholder-note { background: rgba(74,128,240,0.08); border: 1px dashed var(--border-light); border-radius: 8px; padding: 0.8rem 1rem; font-size: 0.82rem; color: var(--text-dim); margin-top: 1rem; }

@media (max-width: 768px) {
  .instructors-grid { grid-template-columns: 1fr; }
}

/* ===================== EXPLORER HERO ===================== */
.explorer-wrap {
  position: relative; width: 100%; max-width: 560px;
  display: flex; flex-direction: column; align-items: center;
}
.explorer-glow-ring {
  position: absolute; bottom: 10%; left: 50%;
  transform: translateX(-50%);
  width: 80%; height: 60px;
  background: radial-gradient(ellipse, rgba(42,88,200,0.35) 0%, transparent 70%);
  filter: blur(20px);
  pointer-events: none;
  z-index: 0;
}
.explorer-img {
  width: 100%; position: relative; z-index: 1;
  filter: drop-shadow(0 20px 50px rgba(0,8,32,0.9))
          drop-shadow(0 0 30px rgba(42,88,200,0.25));
  transform-origin: center bottom;
}

.explorer-tag {
  position: relative; z-index: 2;
  margin-top: 0.5rem;
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.35rem 1rem; border-radius: 50px;
  background: rgba(10,18,40,0.85); border: 1px solid var(--border-light);
  backdrop-filter: blur(8px);
  font-size: 0.75rem; color: var(--silver); letter-spacing: 0.06em;
}
.et-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: #4a80f0;
  box-shadow: 0 0 6px #4a80f0;
  animation: blink 1.5s ease-in-out infinite;
}