/* ===== VARIABLES ===== */
:root {
  --navy: #0B1F3A;
  --blue: #1A4480;
  --teal: #0D9488;
  --teal-light: #14B8A6;
  --accent: #F59E0B;
  --accent-light: #FDE68A;
  --bg: #F8FAFC;
  --bg2: #EFF6FF;
  --white: #FFFFFF;
  --text: #1E293B;
  --text-muted: #64748B;
  --border: #CBD5E1;
  --success: #10B981;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(11,31,58,0.10);
  --shadow-lg: 0 8px 40px rgba(11,31,58,0.16);
  --font: 'Plus Jakarta Sans', sans-serif;
  --font-display: 'Fraunces', serif;
}

/* ===== RESET ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); color: var(--text); background: var(--bg); line-height: 1.65; font-size: 16px; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: var(--font); border: none; background: none; }
input, select, textarea { font-family: var(--font); font-size: 15px; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.hidden { display: none !important; }

/* ===== TYPOGRAPHY ===== */
.section-label {
  display: inline-block;
  background: linear-gradient(135deg, var(--teal), var(--blue));
  color: var(--white);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 4px 14px;
  border-radius: 50px;
  margin-bottom: 12px;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 700;
  color: var(--navy);
  line-height: 1.2;
  margin-bottom: 12px;
}
.section-title em { font-style: italic; color: var(--teal); }
.section-sub { color: var(--text-muted); font-size: 17px; max-width: 540px; margin: 0 auto; }
.section-header { text-align: center; margin-bottom: 52px; }

/* ===== BUTTONS ===== */
.btn-primary {
  display: inline-block;
  background: linear-gradient(135deg, var(--teal) 0%, var(--blue) 100%);
  color: var(--white);
  font-weight: 700;
  font-size: 15px;
  padding: 13px 28px;
  border-radius: 50px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 16px rgba(13,148,136,0.3);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(13,148,136,0.4); }
.btn-outline {
  display: inline-block;
  border: 2px solid var(--white);
  color: var(--white);
  font-weight: 700;
  font-size: 15px;
  padding: 11px 28px;
  border-radius: 50px;
  transition: all 0.3s ease;
}
.btn-outline:hover { background: var(--white); color: var(--navy); }
.btn-lg { padding: 16px 36px; font-size: 17px; }
.btn-submit {
  width: 100%;
  font-size: 17px;
  padding: 16px;
  border-radius: var(--radius);
  margin-top: 8px;
}

/* ===== HEADER ===== */
#header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(11,31,58,0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  padding: 14px 0;
  transition: box-shadow 0.3s;
}
#header.scrolled { box-shadow: 0 4px 24px rgba(0,0,0,0.3); }
.header-inner { display: flex; align-items: center; gap: 24px; }
.logo { display: flex; align-items: center; font-family: var(--font-display); font-size: 1.6rem; font-weight: 700; letter-spacing: -0.5px; }
.logo-talk { color: var(--white); }
.logo-easy { color: var(--teal-light); }
.logo-dot { color: var(--accent); }
.logo-in { color: var(--accent-light); font-size: 1rem; margin-left: 1px; }

.nav-links { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-links a { color: rgba(255,255,255,0.8); font-size: 14px; font-weight: 500; padding: 7px 14px; border-radius: 8px; transition: all 0.2s; }
.nav-links a:hover { color: var(--white); background: rgba(255,255,255,0.1); }
.nav-links .nav-cta { background: var(--teal); color: var(--white); font-weight: 700; }
.nav-links .nav-cta:hover { background: var(--teal-light); }

.header-actions { display: flex; align-items: center; gap: 12px; }
.header-phone { color: rgba(255,255,255,0.7); font-size: 13px; white-space: nowrap; }
.header-phone:hover { color: var(--white); }
.btn-whatsapp-sm {
  display: flex; align-items: center; gap: 6px;
  background: #25D366; color: var(--white);
  font-size: 13px; font-weight: 700;
  padding: 8px 14px; border-radius: 50px;
  transition: all 0.2s;
}
.btn-whatsapp-sm:hover { background: #1ebe5d; transform: translateY(-1px); }

.hamburger { display: none; flex-direction: column; gap: 5px; padding: 4px; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--white); border-radius: 2px; transition: all 0.3s; }

/* ===== HERO ===== */
.hero {
  background: linear-gradient(135deg, var(--navy) 0%, #0F3460 60%, #1A4480 100%);
  color: var(--white);
  padding: 80px 0 0;
  position: relative;
  overflow: hidden;
  min-height: 90vh;
  display: flex;
  align-items: center;
}
.hero-bg-shapes { position: absolute; inset: 0; overflow: hidden; pointer-events: none; }
.shape { position: absolute; border-radius: 50%; filter: blur(80px); opacity: 0.15; }
.shape-1 { width: 500px; height: 500px; background: var(--teal); top: -100px; right: -100px; }
.shape-2 { width: 300px; height: 300px; background: var(--accent); bottom: 100px; left: -50px; }
.shape-3 { width: 200px; height: 200px; background: var(--blue); top: 40%; left: 40%; }

.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; position: relative; z-index: 2; width: 100%; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.2); color: var(--accent-light); font-size: 13px; font-weight: 600; padding: 7px 16px; border-radius: 50px; margin-bottom: 24px; }
.hero-title { font-family: var(--font-display); font-size: clamp(2.4rem, 4.5vw, 3.6rem); font-weight: 700; line-height: 1.15; margin-bottom: 20px; }
.hero-highlight { color: var(--teal-light); font-style: italic; }
.hero-sub { font-size: 17px; color: rgba(255,255,255,0.8); margin-bottom: 36px; line-height: 1.7; max-width: 480px; }
.hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 44px; }

.hero-stats { display: flex; align-items: center; gap: 20px; }
.stat { display: flex; flex-direction: column; gap: 2px; }
.stat-num { font-size: 1.6rem; font-weight: 800; color: var(--white); }
.stat-label { font-size: 12px; color: rgba(255,255,255,0.6); text-transform: uppercase; letter-spacing: 0.5px; }
.stat-divider { width: 1px; height: 40px; background: rgba(255,255,255,0.2); }

.hero-visual { display: flex; justify-content: center; align-items: center; }
.hero-card-stack { position: relative; width: 340px; height: 380px; }
.hcard {
  position: absolute;
  display: flex; align-items: center; gap: 14px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  backdrop-filter: blur(10px);
  border-radius: var(--radius);
  padding: 16px 20px;
  width: 260px;
  animation: floatCard 4s ease-in-out infinite;
}
.hcard-1 { top: 0; left: 0; animation-delay: 0s; }
.hcard-2 { top: 90px; right: 0; animation-delay: 0.8s; }
.hcard-3 { top: 200px; left: 20px; animation-delay: 1.6s; }
.hcard-4 { top: 290px; right: 10px; animation-delay: 2.4s; }
.hcard-icon { font-size: 1.8rem; }
.hcard-text { color: var(--white); font-size: 13px; line-height: 1.4; }
.hcard-text strong { display: block; font-size: 14px; margin-bottom: 2px; }
.hcard-text small { opacity: 0.7; }
.hero-globe { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); font-size: 4rem; animation: spin 20s linear infinite; }

@keyframes floatCard {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
@keyframes spin {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

.hero-wave { position: absolute; bottom: 0; left: 0; width: 100%; line-height: 0; }
.hero-wave svg { width: 100%; height: 60px; }

/* ===== ABOUT ===== */
.about { background: var(--white); }
.about-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-text .section-title { text-align: left; }
.about-text p { color: var(--text-muted); margin-bottom: 14px; line-height: 1.75; }
.about-features { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 24px; }
.af-item { font-size: 14px; font-weight: 500; color: var(--text); display: flex; align-items: center; gap: 6px; }

.about-img-box {
  background: linear-gradient(135deg, var(--navy), var(--blue));
  border-radius: 24px;
  padding: 48px 36px;
  color: var(--white);
  position: relative;
  overflow: hidden;
}
.about-img-box::before {
  content: '';
  position: absolute;
  top: -40px; right: -40px;
  width: 200px; height: 200px;
  border-radius: 50%;
  background: rgba(13,148,136,0.2);
}
.about-img-inner { position: relative; z-index: 1; }
.about-quote { font-family: var(--font-display); font-size: 1.4rem; font-style: italic; line-height: 1.5; margin-bottom: 16px; }
.about-founder { font-size: 14px; opacity: 0.7; margin-bottom: 28px; }
.about-badges { display: flex; flex-wrap: wrap; gap: 10px; }
.badge { background: rgba(255,255,255,0.15); border: 1px solid rgba(255,255,255,0.2); color: var(--white); padding: 6px 14px; border-radius: 50px; font-size: 13px; font-weight: 600; }

/* ===== SUBJECTS ===== */
.subjects { background: var(--bg); }
.subjects-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.subjects-grid .subject-card:nth-child(4) { grid-column: 1 / 2; }
.subjects-grid .subject-card:nth-child(5) { grid-column: 3 / 4; }

.subject-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px 28px;
  border: 2px solid transparent;
  transition: all 0.3s ease;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}
.subject-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  border-radius: var(--radius) var(--radius) 0 0;
}
.sc-english::before { background: linear-gradient(90deg, var(--teal), var(--teal-light)); }
.sc-tamil::before { background: linear-gradient(90deg, #7C3AED, #A78BFA); }
.sc-physics::before { background: linear-gradient(90deg, var(--blue), #60A5FA); }
.sc-chemistry::before { background: linear-gradient(90deg, #DC2626, #F87171); }
.sc-maths::before { background: linear-gradient(90deg, #D97706, var(--accent)); }

.subject-card:hover { transform: translateY(-6px); border-color: var(--teal); box-shadow: var(--shadow-lg); }
.sc-icon { font-size: 2.2rem; margin-bottom: 14px; }
.subject-card h3 { font-size: 1.2rem; font-weight: 700; color: var(--navy); margin-bottom: 10px; }
.subject-card p { color: var(--text-muted); font-size: 14px; margin-bottom: 16px; line-height: 1.6; }
.subject-card ul { display: flex; flex-direction: column; gap: 6px; margin-bottom: 24px; }
.subject-card li { font-size: 13px; color: var(--text-muted); padding-left: 14px; position: relative; }
.subject-card li::before { content: '→'; position: absolute; left: 0; color: var(--teal); font-size: 11px; top: 1px; }
.sc-cta { display: inline-block; color: var(--teal); font-weight: 700; font-size: 14px; transition: gap 0.2s; }
.sc-cta:hover { color: var(--blue); }

/* ===== MODES ===== */
.modes { background: linear-gradient(135deg, var(--navy) 0%, #0F3460 100%); }
.modes .section-label, .modes .section-title, .modes .section-sub { color: var(--white); }
.modes .section-title { color: var(--white); }
.modes .section-sub { color: rgba(255,255,255,0.7); }

.modes-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; margin-bottom: 40px; }
.mode-card {
  background: rgba(255,255,255,0.08);
  border: 2px solid rgba(255,255,255,0.15);
  border-radius: var(--radius);
  padding: 40px 32px;
  color: var(--white);
  position: relative;
  transition: all 0.3s;
}
.mode-card:hover { background: rgba(255,255,255,0.12); border-color: var(--teal-light); transform: translateY(-4px); }
.mode-badge {
  position: absolute;
  top: -12px; right: 24px;
  background: var(--teal);
  color: var(--white);
  font-size: 11px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 50px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.mode-badge-alt { background: var(--accent); color: var(--navy); }
.mode-icon { font-size: 2.6rem; margin-bottom: 14px; }
.mode-card h3 { font-size: 1.4rem; font-weight: 700; margin-bottom: 12px; }
.mode-card p { color: rgba(255,255,255,0.75); font-size: 15px; margin-bottom: 24px; line-height: 1.65; }
.mode-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 28px; }
.mode-list li { font-size: 14px; color: rgba(255,255,255,0.85); }
.mode-price { font-size: 15px; color: var(--accent-light); font-weight: 600; margin-bottom: 20px; }
.mode-price strong { font-size: 18px; }

.timezone-strip {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius);
  padding: 20px 28px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.tz-label { color: rgba(255,255,255,0.7); font-size: 14px; font-weight: 600; }
.tz-items { display: flex; gap: 12px; flex-wrap: wrap; }
.tz-items span { background: rgba(255,255,255,0.1); color: var(--white); font-size: 13px; font-weight: 500; padding: 5px 14px; border-radius: 50px; }

/* ===== AUDIENCE ===== */
.audience { background: var(--white); }
.audience-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.aud-card {
  text-align: center;
  background: var(--bg2);
  border-radius: var(--radius);
  padding: 36px 24px;
  border: 2px solid transparent;
  transition: all 0.3s;
}
.aud-card:hover { border-color: var(--teal); transform: translateY(-4px); box-shadow: var(--shadow); }
.aud-icon { font-size: 2.6rem; margin-bottom: 14px; }
.aud-card h3 { font-size: 1.1rem; font-weight: 700; color: var(--navy); margin-bottom: 10px; }
.aud-card p { font-size: 14px; color: var(--text-muted); line-height: 1.6; margin-bottom: 16px; }
.aud-link { color: var(--teal); font-weight: 700; font-size: 14px; }
.aud-link:hover { color: var(--blue); }

/* ===== COUNTRIES ===== */
.countries { background: var(--bg); }
.countries-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.country-card {
  text-align: center;
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px 16px;
  border: 2px solid var(--border);
  transition: all 0.3s;
  box-shadow: var(--shadow);
}
.country-card:hover { border-color: var(--teal); transform: translateY(-4px); }
.country-more { border-style: dashed; }
.country-flag { font-size: 2.4rem; margin-bottom: 10px; }
.country-name { font-weight: 700; color: var(--navy); font-size: 15px; margin-bottom: 4px; }
.country-tz { font-size: 12px; color: var(--text-muted); }

/* ===== WHY ===== */
.why { background: var(--bg2); }
.why-inner { display: grid; grid-template-columns: 1fr 420px; gap: 60px; align-items: start; }
.why-text .section-title { text-align: left; }
.why-list { display: flex; flex-direction: column; gap: 22px; margin-top: 28px; }
.why-item { display: flex; gap: 16px; align-items: flex-start; }
.why-icon { font-size: 1.8rem; flex-shrink: 0; }
.why-item strong { display: block; font-size: 16px; color: var(--navy); margin-bottom: 4px; }
.why-item p { font-size: 14px; color: var(--text-muted); line-height: 1.6; }

.why-cta-box { position: sticky; top: 100px; }
.wcta-inner {
  background: linear-gradient(135deg, var(--navy), var(--blue));
  border-radius: 20px;
  padding: 40px 32px;
  text-align: center;
  color: var(--white);
  box-shadow: var(--shadow-lg);
}
.wcta-icon { font-size: 2.8rem; margin-bottom: 16px; }
.wcta-inner h3 { font-size: 1.5rem; font-weight: 700; margin-bottom: 12px; }
.wcta-inner p { color: rgba(255,255,255,0.8); font-size: 15px; margin-bottom: 24px; line-height: 1.6; }
.wcta-or { color: rgba(255,255,255,0.4); font-size: 13px; margin: 16px 0; }
.wcta-contact { margin-top: 16px; font-size: 14px; color: rgba(255,255,255,0.7); }
.wcta-contact a { color: var(--teal-light); }

.btn-whatsapp-lg {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: #25D366; color: var(--white);
  font-weight: 700; font-size: 15px;
  padding: 13px 24px; border-radius: 50px;
  transition: all 0.3s; width: 100%;
  box-shadow: 0 4px 16px rgba(37,211,102,0.3);
}
.btn-whatsapp-lg:hover { background: #1ebe5d; transform: translateY(-2px); }

/* ===== TESTIMONIALS ===== */
.testimonials { background: var(--white); }
.testi-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.testi-card {
  background: var(--bg2);
  border-radius: var(--radius);
  padding: 28px;
  border: 1px solid var(--border);
  transition: all 0.3s;
}
.testi-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--teal); }
.testi-stars { color: var(--accent); font-size: 16px; margin-bottom: 14px; letter-spacing: 2px; }
.testi-card p { font-size: 14px; color: var(--text); line-height: 1.7; font-style: italic; margin-bottom: 18px; }
.testi-card p::before { content: '"'; }
.testi-card p::after { content: '"'; }
.testi-author { display: flex; flex-direction: column; gap: 2px; border-top: 1px solid var(--border); padding-top: 14px; }
.testi-author strong { font-size: 14px; color: var(--navy); }
.testi-author span { font-size: 12px; color: var(--text-muted); }

/* ===== ENQUIRY ===== */
.enquiry { background: var(--bg); }
.enquiry-wrap {
  background: var(--white);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  max-width: 860px;
  margin: 0 auto;
}
.enq-tabs { display: flex; border-bottom: 2px solid var(--border); }
.enq-tab {
  flex: 1; padding: 18px;
  font-size: 15px; font-weight: 700;
  color: var(--text-muted);
  border-bottom: 3px solid transparent;
  transition: all 0.2s;
  background: none;
  cursor: pointer;
}
.enq-tab.active { color: var(--teal); border-bottom-color: var(--teal); background: rgba(13,148,136,0.04); }
.enq-tab:hover:not(.active) { background: var(--bg); color: var(--text); }

.enq-form-wrap { padding: 36px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-full { grid-column: 1 / -1; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 13px; font-weight: 600; color: var(--text); }
.form-group input,
.form-group select,
.form-group textarea {
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  transition: border-color 0.2s;
  background: var(--bg);
  color: var(--text);
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--teal); background: var(--white); }
.form-group textarea { resize: vertical; }

.privacy-check .checkbox-label {
  display: flex; align-items: flex-start; gap: 10px;
  font-size: 13px; color: var(--text-muted); cursor: pointer; line-height: 1.5;
}
.privacy-check input[type="checkbox"] { width: 16px; height: 16px; flex-shrink: 0; margin-top: 2px; accent-color: var(--teal); }
.privacy-check a { color: var(--teal); text-decoration: underline; }
.req { color: #DC2626; }

.enq-contact-bar {
  display: flex; justify-content: center; gap: 28px; flex-wrap: wrap;
  padding: 20px;
  background: var(--bg2);
  border-top: 1px solid var(--border);
  font-size: 14px; font-weight: 600; color: var(--text-muted);
}
.enq-contact-bar a { color: var(--teal); }
.enq-contact-bar a:hover { color: var(--blue); }

/* ===== FOOTER ===== */
.footer { background: var(--navy); color: rgba(255,255,255,0.75); padding: 60px 0 0; }
.footer-inner { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px; padding-bottom: 48px; }
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand p { font-size: 14px; line-height: 1.7; color: rgba(255,255,255,0.6); margin-bottom: 20px; }
.footer-social { display: flex; gap: 12px; }
.footer-social a { display: flex; align-items: center; justify-content: center; width: 38px; height: 38px; background: rgba(255,255,255,0.1); border-radius: 8px; color: rgba(255,255,255,0.7); transition: all 0.2s; }
.footer-social a:hover { background: var(--teal); color: var(--white); }

.footer h4 { font-size: 14px; font-weight: 700; color: var(--white); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 20px; }
.footer-links ul, .footer-subjects ul { display: flex; flex-direction: column; gap: 10px; }
.footer-links a, .footer-subjects a { font-size: 14px; color: rgba(255,255,255,0.6); transition: color 0.2s; }
.footer-links a:hover, .footer-subjects a:hover { color: var(--teal-light); }
.fc-item { font-size: 14px; margin-bottom: 10px; }
.fc-item a { color: rgba(255,255,255,0.7); }
.fc-item a:hover { color: var(--teal-light); }
.footer-wa { display: inline-flex; align-items: center; gap: 6px; background: #25D366; color: var(--white) !important; font-weight: 700; padding: 8px 16px; border-radius: 50px; font-size: 13px; margin-top: 8px; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 18px 0;
}
.footer-bottom .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; font-size: 13px; color: rgba(255,255,255,0.4); }
.footer-bottom a { color: rgba(255,255,255,0.5); }
.footer-bottom a:hover { color: var(--teal-light); }

/* ===== FLOATING WHATSAPP ===== */
.whatsapp-float {
  position: fixed;
  bottom: 28px; right: 28px;
  background: #25D366;
  color: var(--white);
  width: 58px; height: 58px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 24px rgba(37,211,102,0.5);
  z-index: 999;
  transition: all 0.3s;
}
.whatsapp-float:hover { transform: scale(1.1); box-shadow: 0 8px 32px rgba(37,211,102,0.6); }
.wa-tooltip {
  position: absolute;
  right: 70px;
  background: var(--navy);
  color: var(--white);
  font-size: 13px; font-weight: 600;
  padding: 6px 12px;
  border-radius: 8px;
  white-space: nowrap;
  opacity: 0;
  transition: opacity 0.2s;
  pointer-events: none;
}
.whatsapp-float:hover .wa-tooltip { opacity: 1; }

/* ===== MODAL ===== */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  z-index: 9999;
  display: flex; align-items: center; justify-content: center; padding: 20px;
}
.modal-box {
  background: var(--white);
  border-radius: 20px;
  padding: 48px 36px;
  text-align: center;
  max-width: 420px;
  width: 100%;
  box-shadow: var(--shadow-lg);
}
.modal-icon { font-size: 3rem; margin-bottom: 16px; }
.modal-box h3 { font-size: 1.5rem; font-weight: 700; color: var(--navy); margin-bottom: 10px; }
.modal-box p { color: var(--text-muted); margin-bottom: 4px; }
.modal-close { display: block; margin: 16px auto 0; color: var(--text-muted); font-size: 14px; text-decoration: underline; background: none; border: none; cursor: pointer; }

/* ===== SCROLL ANIMATION ===== */
.fade-in { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .subjects-grid { grid-template-columns: repeat(2, 1fr); }
  .subjects-grid .subject-card:nth-child(4),
  .subjects-grid .subject-card:nth-child(5) { grid-column: auto; }
  .countries-grid { grid-template-columns: repeat(3, 1fr); }
  .audience-grid { grid-template-columns: repeat(2, 1fr); }
  .why-inner { grid-template-columns: 1fr; }
  .why-cta-box { position: static; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links { display: none; position: absolute; top: 100%; left: 0; right: 0; background: var(--navy); flex-direction: column; padding: 16px; gap: 4px; }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 16px; border-radius: var(--radius-sm); }
  #header { position: relative; }
  .hamburger { display: flex; }
  .header-phone { display: none; }
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-ctas { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-visual { display: none; }
  .hero-sub { margin: 0 auto 36px; }
  .about-inner { grid-template-columns: 1fr; }
  .modes-grid { grid-template-columns: 1fr; }
  .testi-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .countries-grid { grid-template-columns: repeat(2, 1fr); }
  .audience-grid { grid-template-columns: 1fr; }
  .subjects-grid { grid-template-columns: 1fr; }
  .section { padding: 52px 0; }
  .enq-form-wrap { padding: 24px 20px; }
  .about-features { grid-template-columns: 1fr; }
}