/* =========================================================
   NEXTGEN GLOBAL CONSULTANTS — Stylesheet
   Design tokens are the single source of truth for color/type.
   ========================================================= */

:root{
  /* --- Brand palette (per brief) --- */
  --color-primary: #1E40AF;      /* Royal / Navy Blue */
  --color-primary-dark: #16307f;
  --color-accent: #2563EB;       /* Accent Blue */
  --color-accent-2: #00D2FF;     /* Highlight cyan */
  --color-bg: #F8FAFC;           /* Soft light grey/white */
  --color-surface: #FFFFFF;      /* Card/container */
  --color-text: #0F172A;         /* Dark slate */
  --color-text-muted: #475569;   /* Muted slate */
  --color-border: #E2E8F0;
  --color-whatsapp: #17C266;
  --color-navy-deep: #0B1B4D;    /* Derived: ticker/footer base */

  /* --- Gradients --- */
  --grad-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 60%, var(--color-accent-2) 130%);
  --grad-navy: linear-gradient(180deg, #0B1B4D 0%, #101E4A 100%);

  /* --- Type --- */
  --font-display: "Space Grotesk", "Segoe UI", sans-serif;
  --font-body: "Inter", "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", monospace;

  /* --- Shape / elevation --- */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-pill: 999px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06), 0 1px 3px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 48px rgba(30, 64, 175, 0.16);
  --shadow-glow: 0 0 0 1px rgba(37, 99, 235, 0.08), 0 20px 50px rgba(30, 64, 175, 0.14);

  --container-w: 1200px;
  --transition: 220ms cubic-bezier(.4,0,.2,1);
}

/* =========================== RESET =========================== */
*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; scroll-padding-top: 110px; }
body{
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
}
img{ max-width: 100%; display:block; }
a{ color: inherit; text-decoration: none; }
ul{ list-style: none; margin:0; padding:0; }
button{ font: inherit; cursor: pointer; border:none; background:none; color:inherit; }
input, select{ font: inherit; }
svg{ width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
:focus-visible{ outline: 2.5px solid var(--color-accent-2); outline-offset: 2px; border-radius: 4px; }
@media (prefers-reduced-motion: reduce){
  *{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

.container{ width: 100%; max-width: var(--container-w); margin: 0 auto; padding: 0 24px; }

/* =========================== TICKER BAR =========================== */
.ticker-bar{
  background: var(--grad-navy);
  color: #cfd8f5;
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.01em;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.ticker-track{ display:flex; width: max-content; animation: ticker-scroll 32s linear infinite; }
.ticker-set{ display:flex; align-items:center; gap: 14px; padding: 9px 0; white-space: nowrap; }
.ticker-item a{ color: #cfd8f5; }
.ticker-item a:hover{ color: var(--color-accent-2); }
.ticker-dot{ color: var(--color-accent-2); font-size: 0.5rem; opacity: 0.7; }
.ticker-bar:hover .ticker-track{ animation-play-state: paused; }
@keyframes ticker-scroll{
  from{ transform: translateX(0); }
  to{ transform: translateX(-50%); }
}

/* =========================== NAVBAR =========================== */
.navbar{
  position: sticky; top:0; z-index: 40;
  background: rgba(248, 250, 252, 0.85);
  backdrop-filter: blur(10px) saturate(1.4);
  -webkit-backdrop-filter: blur(10px) saturate(1.4);
  border-bottom: 1px solid var(--color-border);
}
.navbar-inner{ display:flex; align-items:center; justify-content: space-between; gap: 20px; padding: 12px 24px; }
.brand{ display:flex; align-items:center; gap: 10px; flex-shrink:0; }
.brand-mark{
  width: 40px; height:40px; border-radius: 10px; display:grid; place-items:center;
  background: var(--grad-primary); color:#fff; font-family: var(--font-display);
  font-weight: 700; font-size: 0.95rem; box-shadow: var(--shadow-sm);
}
.brand-text{ display:flex; flex-direction:column; line-height:1.15; }
.brand-text strong{ font-family: var(--font-display); font-size: 1.02rem; letter-spacing: 0.02em; color: var(--color-text); }
.brand-text em{ font-style:normal; font-size: 0.68rem; color: var(--color-text-muted); letter-spacing: 0.03em; }

.nav-links{ display:flex; gap: 30px; }
.nav-links a{ font-size: 0.92rem; font-weight: 600; color: var(--color-text-muted); position: relative; padding: 6px 0; transition: color var(--transition); }
.nav-links a:hover{ color: var(--color-primary); }
.nav-links a::after{ content:""; position:absolute; left:0; bottom:0; width:0; height:2px; background: var(--grad-primary); transition: width var(--transition); border-radius: 2px; }
.nav-links a:hover::after{ width:100%; }

.navbar-cta{ display:flex; gap: 10px; align-items:center; }

.nav-toggle{ display:none; flex-direction:column; gap: 5px; padding: 6px; }
.nav-toggle span{ width: 22px; height: 2px; background: var(--color-text); border-radius: 2px; transition: transform var(--transition), opacity var(--transition); }

/* =========================== BUTTONS =========================== */
.btn{
  display: inline-flex; align-items:center; justify-content:center; gap: 8px;
  padding: 12px 22px; border-radius: var(--radius-pill);
  font-weight: 700; font-size: 0.92rem; white-space: nowrap;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
}
.btn .icon{ width: 18px; height: 18px; }
.btn-primary{ background: var(--grad-primary); color: #fff; box-shadow: var(--shadow-md); }
.btn-primary:hover{ transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn-ghost{ background: transparent; color: var(--color-primary); border: 1.5px solid var(--color-border); }
.btn-ghost:hover{ border-color: var(--color-primary); background: rgba(37,99,235,0.06); }
.btn-outline-light{ background: transparent; color:#fff; border: 1.5px solid rgba(255,255,255,0.45); }
.btn-outline-light:hover{ background: rgba(255,255,255,0.12); border-color:#fff; }
.btn-whatsapp svg {fill: currentColor;stroke: none;}
.btn-whatsapp{ background: var(--color-whatsapp); color:#fff; border: none; box-shadow: 0 10px 24px rgba(23, 194, 102, 0.28); }
.btn-whatsapp:hover{ transform: translateY(-2px); box-shadow: 0 14px 30px rgba(23,194,102,0.36); }
.btn-sm{ padding: 9px 16px; font-size: 0.85rem; }
.btn-lg{ padding: 15px 28px; font-size: 1rem; }
.btn-block{ width:100%; }

/* =========================== HERO =========================== */
.hero{ position: relative; padding: 76px 0 90px; overflow:hidden; }
.hero-grid-bg{
  position:absolute; inset:0; z-index:0; pointer-events:none;
  background-image:
    radial-gradient(circle at 85% -10%, rgba(0,210,255,0.16), transparent 45%),
    radial-gradient(circle at -5% 30%, rgba(30,64,175,0.10), transparent 40%),
    linear-gradient(rgba(30,64,175,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30,64,175,0.05) 1px, transparent 1px);
  background-size: auto, auto, 42px 42px, 42px 42px;
}
.hero-inner{ position:relative; z-index:1; display:grid; grid-template-columns: 1.15fr 0.85fr; gap: 56px; align-items:start; }

.eyebrow{
  font-family: var(--font-mono); font-size: 0.78rem; font-weight:600; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--color-accent); margin: 0 0 14px;
}
.eyebrow.center{ text-align:center; }
.eyebrow::before{ content:"◆ "; color: var(--color-accent-2); }

.hero h1{
  font-family: var(--font-display); font-size: clamp(2.2rem, 4.4vw, 3.4rem);
  line-height: 1.08; letter-spacing: -0.01em; margin: 0 0 20px; color: var(--color-text);
}
.text-accent{
  background: var(--grad-primary); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub{ font-size: 1.06rem; color: var(--color-text-muted); max-width: 560px; margin: 0 0 28px; }
.hero-sub .dot{ color: var(--color-accent-2); }

.hero-badges{ display:flex; flex-wrap:wrap; gap: 10px; margin-bottom: 30px; }
.badge{
  display:inline-flex; align-items:center; gap: 7px; padding: 9px 15px; border-radius: var(--radius-pill);
  background: #fff; border: 1px solid var(--color-border); font-size: 0.83rem; font-weight: 600; color: var(--color-text);
  box-shadow: var(--shadow-sm);
}
.badge .icon{ width: 16px; height:16px; color: var(--color-accent); fill: rgba(37,99,235,0.12); }

.hero-search{
  display:flex; align-items:center; gap: 10px; background: #fff; border: 1.5px solid var(--color-border);
  border-radius: var(--radius-pill); padding: 6px 6px 6px 18px; box-shadow: var(--shadow-md); max-width: 560px;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.hero-search:focus-within{ border-color: var(--color-accent); box-shadow: var(--shadow-lg); }
.search-icon{ width: 19px; height: 19px; color: var(--color-text-muted); flex-shrink:0; }
.hero-search input{ flex:1; border:none; outline:none; padding: 10px 0; font-size: 0.95rem; background:transparent; color: var(--color-text); min-width: 0; }
.hero-search input::placeholder{ color: #94A3B8; }

.hero-quicktags{ display:flex; flex-wrap:wrap; align-items:center; gap: 8px; margin-top: 14px; font-size: 0.83rem; color: var(--color-text-muted); }
.quicktag{
  padding: 5px 13px; border-radius: var(--radius-pill); border: 1px solid var(--color-border); background: rgba(255,255,255,0.6);
  font-size: 0.8rem; font-weight: 600; color: var(--color-primary); transition: background var(--transition), border-color var(--transition);
}
.quicktag:hover{ background: rgba(37,99,235,0.08); border-color: var(--color-accent); }

/* --- Lead card (glassmorphism) --- */
.glass{
  background: rgba(255,255,255,0.72);
  backdrop-filter: blur(18px) saturate(1.4);
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
  border: 1px solid rgba(255,255,255,0.6);
}
.lead-card{
  border-radius: var(--radius-lg); padding: 30px; box-shadow: var(--shadow-glow);
  position: relative; top: 4px;
}
.lead-card::before{
  content:""; position:absolute; inset:-1px; border-radius: var(--radius-lg); padding: 1px;
  background: linear-gradient(135deg, rgba(37,99,235,0.5), rgba(0,210,255,0.2), transparent 60%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude; pointer-events:none;
}
.lead-card h3{ font-family: var(--font-display); font-size: 1.28rem; margin: 0 0 8px; }
.lead-card .muted{ color: var(--color-text-muted); font-size: 0.9rem; margin: 0 0 22px; }
.lead-form .field{ margin-bottom: 15px; }
.lead-form label{ display:block; font-size: 0.8rem; font-weight: 700; color: var(--color-text); margin-bottom: 6px; }
.lead-form input, .lead-form select{
  width:100%; padding: 12px 14px; border-radius: var(--radius-sm); border: 1.5px solid var(--color-border);
  background: #fff; color: var(--color-text); transition: border-color var(--transition), box-shadow var(--transition);
}
.lead-form input:focus, .lead-form select:focus{ border-color: var(--color-accent); outline:none; box-shadow: 0 0 0 4px rgba(37,99,235,0.12); }
.form-note{ font-size: 0.74rem; color: #94A3B8; text-align:center; margin: 14px 0 0; }

.lead-success{ text-align:center; padding: 10px 0; }
.icon-lg{ width: 52px; height:52px; color: var(--color-whatsapp); margin: 0 auto 14px; padding: 10px; border-radius: 50%; background: rgba(23,194,102,0.1); }
.lead-success h4{ font-family: var(--font-display); margin: 0 0 8px; }
.lead-success p{ color: var(--color-text-muted); font-size: 0.9rem; margin: 0 0 18px; }

/* =========================== SECTION SHARED =========================== */
.section-title{ font-family: var(--font-display); font-size: clamp(1.7rem, 3vw, 2.3rem); margin: 0 0 12px; letter-spacing: -0.01em; }
.section-title.center{ text-align:center; }
.section-sub{ color: var(--color-text-muted); font-size: 1rem; max-width: 620px; }
.section-sub.center{ text-align:center; margin: 0 auto 48px; }

/* =========================== WHY US =========================== */
.why-us{ padding: 90px 0; }
.why-grid{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.why-card{
  background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md);
  padding: 30px 26px; box-shadow: var(--shadow-sm); transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.why-card:hover{ transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: rgba(37,99,235,0.3); }
.why-icon{
  width: 50px; height:50px; border-radius: 12px; display:grid; place-items:center; margin-bottom: 18px;
  background: linear-gradient(135deg, rgba(30,64,175,0.1), rgba(0,210,255,0.12)); color: var(--color-primary);
}
.why-icon svg{ width: 24px; height:24px; }
.why-card h3{ font-family: var(--font-display); font-size: 1.08rem; margin: 0 0 8px; }
.why-card p{ color: var(--color-text-muted); font-size: 0.92rem; margin:0; }

/* =========================== COURSES =========================== */
.courses{ padding: 90px 0; background: linear-gradient(180deg, #EEF2FA 0%, var(--color-bg) 100%); }
.filter-bar{ display:flex; flex-wrap:wrap; justify-content:center; gap: 10px; margin-bottom: 8px; }
.filter-chip{
  padding: 10px 20px; border-radius: var(--radius-pill); border: 1.5px solid var(--color-border);
  background: #fff; font-weight: 700; font-size: 0.86rem; color: var(--color-text-muted);
  transition: all var(--transition);
}
.filter-chip:hover{ border-color: var(--color-accent); color: var(--color-primary); }
.filter-chip.is-active{ background: var(--grad-primary); color:#fff; border-color: transparent; box-shadow: var(--shadow-md); }

.results-count{ text-align:center; color: var(--color-text-muted); font-size: 0.84rem; margin: 20px 0 28px; font-family: var(--font-mono); }

.course-grid{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.course-card{
  background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md);
  padding: 24px; display:flex; flex-direction:column; box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.course-card:hover{ transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: rgba(37,99,235,0.28); }
.course-card-top{ display:flex; align-items:flex-start; justify-content:space-between; gap: 10px; margin-bottom: 14px; }
.course-icon{
  width: 46px; height:46px; border-radius: 12px; flex-shrink:0; display:grid; place-items:center;
  background: var(--grad-primary); color:#fff; font-family: var(--font-display); font-weight:700; font-size: 1rem;
}
.course-cat-tag{ font-size: 0.68rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; color: var(--color-accent); background: rgba(37,99,235,0.08); padding: 4px 10px; border-radius: var(--radius-pill); }
.course-card h3{ font-family: var(--font-display); font-size: 1.08rem; margin: 0 0 8px; line-height:1.3; }
.course-card p{ color: var(--color-text-muted); font-size: 0.87rem; margin: 0 0 16px; flex-grow:1; }
.course-meta{ display:flex; flex-wrap:wrap; gap: 8px; margin-bottom: 18px; }
.meta-pill{ font-size: 0.74rem; font-weight:600; padding: 5px 11px; border-radius: var(--radius-pill); background: var(--color-bg); border: 1px solid var(--color-border); color: var(--color-text); }
.course-actions{ display:flex; gap: 8px; }
.course-actions .btn{ flex:1; padding: 10px 14px; font-size: 0.8rem; }
.course-download{ margin-top: 10px; padding: 10px 14px; font-size: 0.8rem; }
.course-download .icon{ width: 16px; height:16px; }
.btn-syllabus{ background: var(--color-bg); color: var(--color-primary); border: 1.5px solid var(--color-border); }
.btn-syllabus:hover{ border-color: var(--color-primary); background:#fff; }

.no-results{ text-align:center; color: var(--color-text-muted); padding: 50px 0; font-size: 0.95rem; }

/* =========================== CONTACT BANNER =========================== */
.contact-banner{ background: var(--grad-navy); position: relative; overflow:hidden; padding: 64px 0; }
.contact-banner::before{
  content:""; position:absolute; inset:0;
  background: radial-gradient(circle at 15% 30%, rgba(0,210,255,0.16), transparent 45%), radial-gradient(circle at 90% 80%, rgba(37,99,235,0.25), transparent 45%);
}
.contact-banner-inner{ position:relative; display:flex; align-items:center; justify-content:space-between; gap: 30px; flex-wrap:wrap; }
.contact-banner-copy h2{ font-family: var(--font-display); color:#fff; font-size: clamp(1.5rem,3vw,2rem); margin: 0 0 8px; }
.contact-banner-copy p{ color: #B9C4E8; margin:0; max-width: 480px; }
.contact-banner-actions{ display:flex; gap: 14px; flex-wrap:wrap; }

/* =========================== TESTIMONIALS =========================== */
.testimonials{ padding: 90px 0; }
.testimonial-grid{ display:grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.testimonial-card{
  background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md);
  padding: 28px; box-shadow: var(--shadow-sm); margin:0;
}
.stars{ color: #F59E0B; letter-spacing: 3px; margin-bottom: 14px; font-size: 0.95rem; }
.testimonial-card blockquote{ margin: 0 0 20px; font-size: 0.95rem; color: var(--color-text); line-height:1.6; }
.testimonial-card blockquote::before{ content: "\201C"; }
.testimonial-card blockquote::after{ content: "\201D"; }
.testimonial-card figcaption{ display:flex; flex-direction:column; border-top: 1px solid var(--color-border); padding-top: 14px; }
.t-name{ font-weight: 700; font-size: 0.9rem; }
.t-role{ font-size: 0.8rem; color: var(--color-text-muted); }

/* =========================== FOOTER =========================== */
.site-footer{ background: var(--grad-navy); color: #B9C4E8; padding-top: 70px; }
.footer-grid{ display:grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 50px; }
.brand-footer .brand-text strong{ color:#fff; }
.brand-footer .brand-text em{ color: #8B9AC9; }
.footer-about p{ font-size: 0.87rem; margin: 16px 0 20px; color: #AAB6DE; max-width: 320px; }
.footer-social{ display:flex; gap: 10px; }
.footer-social a{
  width: 36px; height:36px; border-radius: 50%; display:grid; place-items:center; background: rgba(255,255,255,0.08);
  transition: background var(--transition), transform var(--transition);
}
.footer-social a:hover{ background: var(--color-accent); transform: translateY(-3px); }
.footer-social svg{ width: 16px; height:16px; fill: currentColor; stroke:none; color:#fff; }

.footer-col h4{ color:#fff; font-family: var(--font-display); font-size: 0.95rem; margin: 0 0 18px; letter-spacing: 0.02em; }
.footer-col ul li{ margin-bottom: 12px; }
.footer-col ul a{ font-size: 0.87rem; color: #AAB6DE; transition: color var(--transition); }
.footer-col ul a:hover{ color: var(--color-accent-2); }

.footer-contact li{ display:flex; align-items:flex-start; gap: 10px; font-size: 0.85rem; color: #AAB6DE; }
.footer-contact svg{ width: 17px; height:17px; flex-shrink:0; margin-top: 2px; color: var(--color-accent-2); }
.footer-contact a{ color: #AAB6DE; }
.footer-contact a:hover{ color: var(--color-accent-2); }

.footer-bottom{ border-top: 1px solid rgba(255,255,255,0.08); padding: 20px 0; }
.footer-bottom-inner{ display:flex; justify-content:space-between; flex-wrap:wrap; gap: 8px; font-size: 0.8rem; color: #8B9AC9; }
.footer-tagline{ font-family: var(--font-mono); }

/* =========================== MODAL =========================== */
.modal-overlay{
  position: fixed; inset:0; background: rgba(11,27,77,0.55); backdrop-filter: blur(4px);
  display:none; place-items:center; z-index: 100; padding: 20px;
}
.modal-overlay:not([hidden]){
  display:grid;
}
.modal{
  background:#fff; border-radius: var(--radius-lg); max-width: 560px; width:100%; max-height: 85vh; overflow-y:auto;
  padding: 34px; position:relative; box-shadow: var(--shadow-lg); animation: modal-in 220ms ease;
}
@keyframes modal-in{ from{ opacity:0; transform: translateY(14px) scale(0.98);} to{opacity:1; transform:none;} }
.modal-close{
  position:absolute; top: 18px; right: 18px; width: 34px; height:34px; border-radius:50%;
  background: var(--color-bg); font-size: 1.3rem; line-height:1; display:grid; place-items:center; color: var(--color-text-muted);
}
.modal-close:hover{ background: var(--color-border); color: var(--color-text); }
.modal-body-icon{
  width: 52px; height:52px; border-radius: 14px; background: var(--grad-primary); color:#fff; display:grid; place-items:center;
  font-family: var(--font-display); font-weight:700; margin-bottom: 16px;
}
#modalBody h3{ font-family: var(--font-display); font-size: 1.35rem; margin: 0 0 6px; }
#modalBody .modal-meta{ display:flex; gap: 8px; flex-wrap:wrap; margin-bottom: 18px; }
#modalBody .modal-desc{ color: var(--color-text-muted); font-size: 0.92rem; margin-bottom: 20px; }
#modalBody h4{ font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--color-primary); margin: 0 0 12px; }
#modalBody ol{ margin: 0 0 22px; padding-left: 20px; }
#modalBody ol li{ margin-bottom: 8px; font-size: 0.9rem; color: var(--color-text); }
.modal-actions{ display:flex; gap: 10px; }
.modal-actions .btn{ flex:1; }

/* =========================== FLOATING ACTION BUTTONS =========================== */
.fab-stack{ position: fixed; bottom: 26px; right: 22px; display:flex; flex-direction:column; gap: 14px; z-index: 60; }
.fab{
  width: 56px; height:56px; border-radius: 50%; display:grid; place-items:center; color:#fff;
  box-shadow: var(--shadow-lg); position:relative; transition: transform var(--transition);
}
.fab:hover{ transform: scale(1.08); }
.fab svg{ width: 26px; height:26px; fill: currentColor; stroke:none; }
.fab-whatsapp{ background: var(--color-whatsapp); }
.fab-call{ background: var(--grad-primary); }
.fab-pulse{
  position:absolute; inset:0; border-radius:50%; background: var(--color-whatsapp);
  opacity: 0.55; animation: fab-pulse 2.2s ease-out infinite; z-index:-1;
}
@keyframes fab-pulse{
  0%{ transform: scale(1); opacity: 0.5; }
  100%{ transform: scale(1.9); opacity: 0; }
}

/* =========================== RESPONSIVE =========================== */
@media (max-width: 980px){
  .hero-inner{ grid-template-columns: 1fr; }
  .hero-side{ max-width: 480px; }
  .why-grid, .testimonial-grid{ grid-template-columns: repeat(2,1fr); }
  .course-grid{ grid-template-columns: repeat(2,1fr); }
  .footer-grid{ grid-template-columns: 1fr 1fr; }
}

@media (max-width: 760px){
  .nav-links, .navbar-cta{ display:none; }
  .nav-toggle{ display:flex; }
  .navbar.is-open .nav-links{
    display:flex; flex-direction:column; position:absolute; top:100%; left:0; right:0; background:#fff;
    padding: 18px 24px; border-bottom: 1px solid var(--color-border); gap: 16px; box-shadow: var(--shadow-md);
  }
  .navbar.is-open .navbar-cta{ display:flex; position:absolute; top: calc(100% + 190px); left:0; right:0; background:#fff; padding: 0 24px 20px; }
  .navbar.is-open .nav-toggle span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
  .navbar.is-open .nav-toggle span:nth-child(2){ opacity:0; }
  .navbar.is-open .nav-toggle span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }

  .hero{ padding: 48px 0 60px; }
  .hero-search{ flex-wrap:wrap; border-radius: var(--radius-md); padding: 10px 14px; }
  .hero-search .btn{ width:100%; }
  .why-grid, .testimonial-grid, .course-grid{ grid-template-columns: 1fr; }
  .footer-grid{ grid-template-columns: 1fr; gap: 30px; }
  .contact-banner-inner{ flex-direction:column; align-items:flex-start; }
  .contact-banner-actions{ width:100%; }
  .contact-banner-actions .btn{ flex:1; }
  .fab-stack{ bottom: 18px; right: 16px; }
  .fab{ width: 50px; height:50px; }
}