/* ============================
   THE MODERN EXCEL v2 - STYLES
   Stack: Pure HTML5 + CSS3 + Vanilla JS
   Font: Plus Jakarta Sans (Google Fonts)
   ============================ */

/* ── CUSTOM PROPERTIES ─────────────────────────────── */
:root {
  --green-900: #052e16;
  --green-800: #14532d;
  --green-700: #15803d;
  --green-600: #16a34a;
  --green-500: #22c55e;
  --green-400: #4ade80;
  --green-100: #dcfce7;
  --brand:     #1d6f42;
  --brand-light: #22c55e;
  --gold:      #f59e0b;
  --gold-dark: #d97706;
  --purple:    #932E8A;
  --blue:      #104BC7;
  --red:       #881421;
  --slate-950: #020617;
  --slate-900: #0f172a;
  --slate-800: #1e293b;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-400: #94a3b8;
  --slate-200: #e2e8f0;
  --slate-100: #f1f5f9;
  --white:     #ffffff;
  --font-main: 'Plus Jakarta Sans', 'Inter', sans-serif;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.12), 0 1px 2px rgba(0,0,0,.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,.14);
  --shadow-lg: 0 10px 40px rgba(0,0,0,.18);
  --shadow-glow: 0 0 24px rgba(34,197,94,.22);
  --transition: 0.28s cubic-bezier(0.4,0,0.2,1);
  --nav-h: 72px;
}

/* ── RESET & BASE ──────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-main);
  background: var(--white);
  color: var(--slate-800);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
button { cursor: pointer; font-family: inherit; }

/* ── LAYOUT UTILITIES ──────────────────────────────── */
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-sm { padding: 48px 0; }
.text-center { text-align: center; }
.text-right  { text-align: right; }

/* ── TYPOGRAPHY ────────────────────────────────────── */
.section-label {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--brand-light);
  background: rgba(34,197,94,.1);
  border: 1px solid rgba(34,197,94,.25);
  padding: 4px 14px;
  border-radius: 100px;
  margin-bottom: 14px;
}
.section-title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 800;
  color: var(--slate-900);
  line-height: 1.2;
  margin-bottom: 16px;
}
.section-subtitle {
  font-size: 1.05rem;
  color: var(--slate-600);
  max-width: 640px;
}
.section-title span { color: var(--brand); }
.subsection-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--slate-800);
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--green-100);
  display: inline-block;
}

/* ── NAVBAR ────────────────────────────────────────── */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--nav-h);
  background: rgba(255,255,255,.97);
  backdrop-filter: blur(14px) saturate(180%);
  -webkit-backdrop-filter: blur(14px) saturate(180%);
  border-bottom: 1px solid rgba(0,0,0,.08);
  display: flex;
  align-items: center;
  transition: background var(--transition), box-shadow var(--transition);
}
#navbar.scrolled {
  background: rgba(255,255,255,1);
  box-shadow: 0 2px 20px rgba(0,0,0,.1);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.nav-logo img { height: 52px; width: auto; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-links a {
  color: var(--slate-700);
  font-size: 14px;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}
.nav-links a:hover {
  color: var(--brand);
  background: rgba(29,111,66,.07);
}
.nav-links a.active { color: var(--brand); }
.nav-cta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: 12px;
}
.nav-contact-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--brand);
  color: var(--white) !important;
  font-weight: 600 !important;
  padding: 8px 18px !important;
  border-radius: 100px !important;
  font-size: 13px !important;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition) !important;
}
.nav-contact-btn:hover {
  background: var(--green-700) !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(29,111,66,.35) !important;
}
.nav-icon-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--slate-100);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}
.nav-icon-btn:hover { background: var(--slate-200); }
.nav-icon-btn img { width: 20px; height: 20px; object-fit: contain; filter: none; }

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 4px;
  z-index: 1001;
}
.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--slate-800);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.nav-mobile {
  display: none;
  position: fixed;
  top: var(--nav-h);
  left: 0; right: 0;
  background: rgba(255,255,255,.98);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(0,0,0,.08);
  padding: 20px 24px 28px;
  z-index: 999;
  flex-direction: column;
  gap: 4px;
  box-shadow: 0 8px 24px rgba(0,0,0,.1);
}
.nav-mobile.open { display: flex; }
.nav-mobile a {
  color: var(--slate-700);
  font-size: 15px;
  font-weight: 600;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition);
}
.nav-mobile a:hover { background: rgba(29,111,66,.07); color: var(--brand); }
.nav-mobile-divider { height: 1px; background: var(--slate-200); margin: 10px 0; }
.nav-mobile-contacts {
  display: flex;
  gap: 12px;
  margin-top: 8px;
}
.nav-mobile-contacts a {
  flex: 1;
  text-align: center;
  font-size: 13px;
  font-weight: 600;
  padding: 10px !important;
  border-radius: var(--radius-sm) !important;
}
.nav-mobile-contacts .email-btn { background: var(--brand); color: var(--white) !important; }
.nav-mobile-contacts .wa-btn { background: #25D366; color: var(--white) !important; }

/* ── HERO / STATS SECTION ──────────────────────────── */
#hero {
  padding-top: calc(var(--nav-h) + 60px);
  padding-bottom: 80px;
  background: linear-gradient(135deg, var(--slate-950) 0%, #0a1f0f 50%, var(--slate-950) 100%);
  position: relative;
  overflow: hidden;
}
#hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 60% at 50% 0%, rgba(29,111,66,.35) 0%, transparent 70%);
  pointer-events: none;
}
.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(34,197,94,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34,197,94,.04) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}
.hero-content {
  position: relative;
  text-align: center;
  max-width: 800px;
  margin: 0 auto 64px;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--brand-light);
  margin-bottom: 20px;
}
.hero-eyebrow::before, .hero-eyebrow::after {
  content: '';
  display: block;
  width: 32px;
  height: 1px;
  background: var(--brand-light);
  opacity: .5;
}
.hero-title {
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 900;
  color: var(--white);
  line-height: 1.1;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}
.hero-title .accent { color: var(--brand-light); }
.hero-desc {
  font-size: 1.1rem;
  color: rgba(255,255,255,.65);
  max-width: 540px;
  margin: 0 auto 36px;
}
.hero-btns {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}
.btn-primary {
  background: var(--brand);
  color: var(--white);
  font-weight: 700;
  font-size: 15px;
  padding: 13px 28px;
  border-radius: 100px;
  border: none;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn-primary:hover {
  background: var(--green-600);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(29,111,66,.5);
}
.btn-secondary {
  background: rgba(255,255,255,.08);
  color: var(--white);
  font-weight: 600;
  font-size: 15px;
  padding: 13px 28px;
  border-radius: 100px;
  border: 1px solid rgba(255,255,255,.18);
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn-secondary:hover {
  background: rgba(255,255,255,.14);
  border-color: rgba(255,255,255,.3);
  transform: translateY(-2px);
}

/* Stats row */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  position: relative;
}
.stat-card {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(34,197,94,.15);
  border-radius: var(--radius-lg);
  padding: 32px 20px;
  text-align: center;
  backdrop-filter: blur(8px);
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--brand-light), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.stat-card:hover { border-color: rgba(34,197,94,.4); background: rgba(34,197,94,.07); transform: translateY(-4px); }
.stat-card:hover::before { opacity: 1; }
.stat-number {
  font-size: clamp(2.2rem, 4vw, 3rem);
  font-weight: 900;
  color: var(--brand-light);
  line-height: 1;
  margin-bottom: 8px;
  letter-spacing: -1px;
}
.stat-label {
  font-size: 13px;
  font-weight: 600;
  color: rgba(255,255,255,.6);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ── ABOUT MODERN EXCEL ────────────────────────────── */
#about { background: var(--white); }
.about-text {
  font-size: 1.05rem;
  color: var(--slate-600);
  margin-bottom: 16px;
}
.about-text strong { color: var(--slate-800); }
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 14px;
  margin-top: 40px;
}
/* button elements used as modal triggers — reset to match <a> behaviour */
button.feature-card, button.project-card {
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}
.feature-card {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--slate-100);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  text-decoration: none;
  color: var(--slate-800);
  font-weight: 600;
  font-size: 14px;
  transition: background var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
/* Power BI icon: black transparent PNG → Power BI yellow (#F2C811) */
.feature-icon-pbi {
  filter: brightness(0) saturate(100%) invert(79%) sepia(70%) saturate(700%) hue-rotate(6deg) brightness(108%);
}
.feature-card:hover {
  background: var(--white);
  border-color: var(--brand);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  color: var(--brand);
}
.feature-icon {
  width: 38px;
  height: 38px;
  flex-shrink: 0;
  object-fit: contain;
  object-fit: contain;
  border-radius: 8px;
}

/* ── SECTION HEADERS ───────────────────────────────── */
.sec-header {
  margin-bottom: 48px;
}
.sec-header.centered { text-align: center; }
.sec-header.centered .section-subtitle { margin: 0 auto; }

/* ── PROJECTS SECTION ──────────────────────────────── */
#projects { background: var(--slate-900); }
#projects .section-title { color: var(--white); }
#projects .section-subtitle { color: rgba(255,255,255,.6); }
.projects-intro { color: rgba(255,255,255,.75); font-size: 1rem; margin-bottom: 40px; line-height: 1.7; }
.projects-intro li { padding: 4px 0; color: rgba(255,255,255,.65); }
.projects-intro li::before { content: "→ "; color: var(--brand-light); font-weight: 700; }

.subsec-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--slate-400);
  margin-bottom: 20px;
}
.subsec-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: rgba(255,255,255,.1);
  width: 60px;
}
.subsec-title-dark {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}

/* Project cards */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 14px;
  margin-bottom: 40px;
}
.project-card {
  background: var(--brand);
  border-radius: var(--radius-md);
  padding: 22px 18px;
  color: var(--white);
  position: relative;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  text-decoration: none;
  display: block;
}
.project-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,.08) 0%, transparent 60%);
  pointer-events: none;
}
.project-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(29,111,66,.4);
}
.project-card.gold { background: var(--gold); color: var(--slate-900); }
.project-card.gold:hover { box-shadow: 0 12px 32px rgba(245,158,11,.35); }
.project-card.mid-green { background: #639C7D; }
.project-card.light-green { background: #A0CF65; color: var(--slate-900); }
.project-card .project-title {
  font-weight: 700;
  font-size: 15px;
  margin-bottom: 8px;
  line-height: 1.3;
}
.project-card .project-desc {
  font-size: 12.5px;
  opacity: .85;
  line-height: 1.5;
}

/* Best Practices / Repair grid — 4-colour palette for dark-bg visibility */
.bp-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 14px;
  margin-bottom: 40px;
}
/* Card 1 (default): bright emerald — visible on dark navy */
.bp-grid .project-card { background: linear-gradient(135deg, #16a34a, #15803d); }
.bp-grid .project-card:hover { box-shadow: 0 12px 32px rgba(22,163,74,.45); }
/* Card 2 (mid-green → teal): distinct from green */
.bp-grid .project-card.mid-green { background: linear-gradient(135deg, #0d9488, #0f766e); }
.bp-grid .project-card.mid-green:hover { box-shadow: 0 12px 32px rgba(13,148,136,.45); }
/* Card 3 (light-green → amber-orange): stands out on dark */
.bp-grid .project-card.light-green { background: linear-gradient(135deg, #ea580c, #c2410c); color: var(--white); }
.bp-grid .project-card.light-green:hover { box-shadow: 0 12px 32px rgba(234,88,12,.45); }
/* Card 4 (gold): keep gold, brighten hover */
.bp-grid .project-card.gold { background: linear-gradient(135deg, #f59e0b, #d97706); color: var(--slate-900); }
.bp-grid .project-card.gold:hover { box-shadow: 0 12px 32px rgba(245,158,11,.45); }

/* Repair & Enhance */
.repair-text { color: rgba(255,255,255,.72); font-size: 1rem; line-height: 1.75; margin-bottom: 28px; }

/* ── CTA STRIP ─────────────────────────────────────── */
.cta-strip {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 14px;
  padding: 14px 0;
  border-top: 1px solid rgba(255,255,255,.06);
  margin-top: 12px;
}
.cta-strip.light { border-color: var(--slate-200); }
.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: 100px;
  transition: transform var(--transition), box-shadow var(--transition);
  text-decoration: none;
}
.cta-btn:hover { transform: translateY(-2px); }
.cta-btn.email {
  background: var(--brand);
  color: var(--white);
}
.cta-btn.email:hover { box-shadow: 0 6px 18px rgba(29,111,66,.4); }
.cta-btn.whatsapp {
  background: #25D366;
  color: var(--white);
}
.cta-btn.whatsapp:hover { box-shadow: 0 6px 18px rgba(37,211,102,.4); }
.cta-icon { width: 16px; height: 16px; object-fit: contain; filter: brightness(0) invert(1); }

/* ── COURSES SECTION ───────────────────────────────── */
#courses { background: var(--slate-100); }
.courses-intro { color: var(--slate-600); font-size: 1rem; margin-bottom: 12px; }
.course-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 36px;
}
.course-tab {
  background: var(--white);
  border: 1px solid var(--slate-200);
  color: var(--slate-600);
  font-size: 13px;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: 100px;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}
.course-tab:hover, .course-tab.active {
  background: var(--brand);
  border-color: var(--brand);
  color: var(--white);
}
.course-panel { display: none; }
.course-panel.active { display: block; }
.course-desc { color: var(--slate-600); font-size: .95rem; margin-bottom: 28px; line-height: 1.7; }

.course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 14px;
}
.course-card {
  background: var(--white);
  border: 1.5px solid var(--slate-200);
  border-radius: var(--radius-md);
  padding: 20px 16px;
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: var(--slate-800);
  font-weight: 600;
  font-size: 14px;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition), background var(--transition);
}
.course-card:hover {
  border-color: var(--brand);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  background: #f0fdf4;
  color: var(--brand);
}
.course-card.pq:hover { border-color: #639C7D; color: #639C7D; background: #f0faf5; }
.course-card.dax:hover { border-color: #A0CF65; color: #5a8a00; background: #f7fce8; }
.course-card.pbi:hover { border-color: var(--gold); color: var(--gold-dark); background: #fffbeb; }
.course-card.pa:hover { border-color: var(--purple); color: var(--purple); background: #fdf4ff; }
.course-card.paut:hover { border-color: var(--blue); color: var(--blue); background: #eff6ff; }
.course-card.access:hover { border-color: var(--red); color: var(--red); background: #fff5f5; }
.course-icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  object-fit: contain;
}

/* ── CUSTOMERS SECTION ─────────────────────────────── */
#customers { background: var(--white); }
.customers-intro { font-size: 1rem; color: var(--slate-600); margin-bottom: 12px; }
.industry-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 40px;
}
.industry-tab {
  background: var(--slate-100);
  border: 1px solid var(--slate-200);
  color: var(--slate-600);
  font-size: 13px;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: 100px;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}
.industry-tab:hover, .industry-tab.active {
  background: var(--slate-900);
  border-color: var(--slate-900);
  color: var(--white);
}
.industry-panel { display: none; }
.industry-panel.active { display: block; }

.logo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 16px;
}
.logo-card {
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-md);
  padding: 20px 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 90px;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  cursor: default;
}
.logo-card:hover {
  border-color: var(--slate-300);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.logo-card img {
  max-height: 52px;
  max-width: 130px;
  object-fit: contain;
  filter: grayscale(30%);
  transition: filter var(--transition);
}
.logo-card:hover img { filter: grayscale(0%); }

/* ── DOWNLOADS SECTION ─────────────────────────────── */
#downloads { background: var(--slate-900); }
#downloads .section-title { color: var(--white); }
#downloads .section-subtitle { color: rgba(255,255,255,.6); }
.dl-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
}
.dl-card {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  text-decoration: none;
  color: var(--white);
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
}
.dl-card:hover {
  background: rgba(34,197,94,.1);
  border-color: rgba(34,197,94,.35);
  transform: translateY(-3px);
}
.dl-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: var(--brand);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 18px;
}
.dl-icon.xlsx-icon { background: #1d6f42; }
.dl-info { flex: 1; }
.dl-name { font-weight: 600; font-size: 14px; margin-bottom: 3px; }
.dl-type { font-size: 11px; color: rgba(255,255,255,.45); text-transform: uppercase; letter-spacing: 1px; }
.dl-arrow {
  color: rgba(255,255,255,.3);
  font-size: 18px;
  transition: color var(--transition), transform var(--transition);
}
.dl-card:hover .dl-arrow { color: var(--brand-light); transform: translateX(3px); }

/* ── FOOTER ────────────────────────────────────────── */
#footer {
  background: var(--slate-950);
  border-top: 1px solid rgba(255,255,255,.06);
  padding: 60px 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}
.footer-logo-wrap {
  display: inline-block;
  background: #ffffff;
  border-radius: 12px;
  padding: 8px 16px;
  margin-bottom: 18px;
  line-height: 0;
}
.footer-logo {
  height: 44px;
  width: auto;
  display: block;
}
.footer-tagline { color: rgba(255,255,255,.5); font-size: 14px; line-height: 1.7; }
.footer-social {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}
.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,.09);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), transform var(--transition);
  overflow: hidden;
}
.footer-social a:hover { transform: translateY(-2px); }
.footer-social a.social-email:hover { background: var(--brand); }
.footer-social a.social-wa:hover   { background: #25D366; }
.footer-social a.social-li:hover   { background: #0A66C2; }
.footer-social a.social-tw:hover   { background: #1a1a1a; }
.footer-social a.social-ig:hover   { background: #E1306C; }
.footer-social a.social-yt:hover   { background: #FF0000; }
.footer-social a.social-fb:hover   { background: #1877F2; }
/* Use original colored icons — they show on dark bg naturally */
.footer-social img {
  width: 22px;
  height: 22px;
  object-fit: contain;
}
/* Email and WhatsApp icons need to be white (transparent originals) */
.footer-social a.social-email img,
.footer-social a.social-wa img { filter: brightness(0) invert(1); width: 16px; height: 16px; }
.footer-col h5 {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: rgba(255,255,255,.35);
  margin-bottom: 18px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col li a {
  color: rgba(255,255,255,.65);
  font-size: 14px;
  transition: color var(--transition);
}
.footer-col li a:hover { color: var(--brand-light); }
.footer-col li button {
  background: none;
  border: none;
  color: rgba(255,255,255,.65);
  font-size: 14px;
  font-family: inherit;
  cursor: pointer;
  padding: 0;
  transition: color var(--transition);
}
.footer-col li button:hover { color: var(--brand-light); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.06);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-copy { color: rgba(255,255,255,.35); font-size: 13px; }
.footer-contact {
  display: flex;
  gap: 12px;
  align-items: center;
}
.footer-contact a {
  display: flex;
  align-items: center;
  gap: 6px;
  color: rgba(255,255,255,.55);
  font-size: 13px;
  transition: color var(--transition);
}
.footer-contact a:hover { color: var(--brand-light); }

/* ── MODALS ────────────────────────────────────────── */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0,0,0,.7);
  backdrop-filter: blur(4px);
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal-overlay.open { display: flex; }
.modal-box {
  background: var(--white);
  border-radius: var(--radius-lg);
  max-width: 640px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  padding: 36px;
  position: relative;
  animation: modalIn .28s cubic-bezier(.34,1.4,.64,1) both;
}
@keyframes modalIn { from { opacity: 0; transform: scale(.92) translateY(16px); } to { opacity: 1; transform: none; } }
.modal-close {
  position: absolute;
  top: 16px; right: 16px;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--slate-100);
  border: none;
  font-size: 18px;
  line-height: 32px;
  text-align: center;
  cursor: pointer;
  color: var(--slate-600);
  transition: background var(--transition), color var(--transition);
}
.modal-close:hover { background: var(--slate-200); color: var(--slate-900); }
.modal-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--slate-900);
  margin-bottom: 20px;
  padding-right: 40px;
}
.modal-body { color: var(--slate-600); font-size: 15px; line-height: 1.75; }
.modal-body p { margin-bottom: 14px; }
.modal-body h4 { font-size: 14px; font-weight: 700; color: var(--slate-800); text-transform: uppercase; letter-spacing: .8px; margin: 18px 0 10px; }
.modal-body ol, .modal-body ul { padding-left: 20px; margin-bottom: 14px; }
.modal-body ol { list-style: decimal; }
.modal-body ul { list-style: disc; }
.modal-body ol li, .modal-body ul li { margin-bottom: 8px; }
.modal-contact-row {
  display: flex;
  gap: 12px;
  margin-top: 20px;
  flex-wrap: wrap;
}
.modal-contact-row a {
  flex: 1;
  min-width: 140px;
  text-align: center;
  padding: 10px 18px;
  border-radius: 100px;
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
}
.modal-contact-row .email-link { background: var(--brand); color: var(--white); }
.modal-contact-row .wa-link { background: #25D366; color: var(--white); }

/* ── ANIMATIONS ────────────────────────────────────── */
[data-aos] { opacity: 0; transform: translateY(28px); transition: opacity .6s ease, transform .6s ease; }
[data-aos].aos-animate { opacity: 1; transform: none; }
[data-aos="fade-left"] { transform: translateX(-28px); }
[data-aos="fade-left"].aos-animate { transform: none; }
[data-aos="fade-right"] { transform: translateX(28px); }
[data-aos="fade-right"].aos-animate { transform: none; }
[data-aos="zoom-in"] { transform: scale(.9); }
[data-aos="zoom-in"].aos-animate { transform: none; }

/* ── SCROLL TO TOP ─────────────────────────────────── */
#scrollTop {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 44px;
  height: 44px;
  background: var(--brand);
  color: var(--white);
  border: none;
  border-radius: 50%;
  font-size: 18px;
  cursor: pointer;
  z-index: 900;
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity var(--transition), transform var(--transition), background var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}
#scrollTop.visible { opacity: 1; pointer-events: all; transform: none; }
#scrollTop:hover { background: var(--green-600); }

/* ── FLOATING WHATSAPP ─────────────────────────────── */
#floatWA {
  position: fixed;
  bottom: 82px;
  right: 28px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: #25D366;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(37,211,102,.5);
  z-index: 900;
  transition: transform var(--transition), box-shadow var(--transition);
}
#floatWA:hover { transform: scale(1.1); box-shadow: 0 8px 24px rgba(37,211,102,.6); }
#floatWA img { width: 26px; height: 26px; object-fit: contain; filter: brightness(0) invert(1); }

/* ── RESPONSIVE ────────────────────────────────────── */
@media (max-width: 1024px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  :root { --nav-h: 64px; }
  .nav-links, .nav-cta { display: none; }
  .nav-hamburger { display: flex; }
  .section { padding: 56px 0; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .project-grid { grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); }
  .hero-title { font-size: 2rem; }
  .course-tabs { gap: 6px; }
  .industry-tabs { gap: 6px; }
}
@media (max-width: 480px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .project-grid { grid-template-columns: 1fr; }
  .bp-grid { grid-template-columns: 1fr; }
  .logo-grid { grid-template-columns: repeat(2, 1fr); }
  .dl-grid { grid-template-columns: 1fr; }
  .hero-btns { flex-direction: column; align-items: center; }
  .modal-box { padding: 24px 18px; }
}