:root {
  --clr-primary: #0f172a;
  --clr-brand: #0d9488;
  --clr-brand-2: #059669;
  --clr-brand-deep: #0f766e;
  --clr-brand-soft: #ccfbf1;
  --clr-brand-soft-2: #ecfdf5;
  --clr-text-main: #334155;
  --clr-text-dark: #0f172a;
  --clr-text-muted: #64748b;
  --clr-bg-body: #f5f7f8;
  --clr-bg-surface: rgba(255,255,255,0.92);
  --clr-border: rgba(148, 163, 184, 0.18);
  --site-width: 1080px;
  --header-height: 72px;
  --radius: 18px;
  --shadow-soft: 0 10px 30px rgba(15, 23, 42, 0.05);
  --shadow-card: 0 10px 30px rgba(13, 148, 136, 0.08);
  --shadow-card-hover: 0 18px 40px rgba(13, 148, 136, 0.14);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "Inter", "Anek Tamil", -apple-system, BlinkMacSystemFont, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(13,148,136,0.08), transparent 28%),
    radial-gradient(circle at top right, rgba(5,150,105,0.08), transparent 30%),
    linear-gradient(180deg, #f7fafb 0%, #f5f7f8 55%, #f8fafc 100%);
  color: var(--clr-text-main);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}
a { text-decoration: none; color: inherit; transition: .28s ease; }
ul, ol { list-style: none; }
.container { max-width: var(--site-width); width: 100%; margin: 0 auto; padding: 0 20px; }

.site-header {
  height: var(--header-height);
  position: sticky;
  top: 0;
  z-index: 1000;
  background: linear-gradient(135deg, var(--clr-brand) 0%, var(--clr-brand-deep) 52%, var(--clr-brand-2) 100%);
  box-shadow: 0 10px 30px rgba(13,148,136,.16);
  overflow: hidden;
}
.site-header::before,
.site-header::after {
  content: "";
  position: absolute;
  border-radius: 999px;
  pointer-events: none;
}
.site-header::before {
  width: 220px; height: 220px; top: -110px; right: -40px;
  background: radial-gradient(circle, rgba(255,255,255,.18), transparent 70%);
}
.site-header::after {
  width: 180px; height: 180px; left: -40px; bottom: -110px;
  background: radial-gradient(circle, rgba(255,255,255,.10), transparent 70%);
}
.header-inner { display: flex; justify-content: space-between; align-items: center; height: 100%; position: relative; }
.logo {
  display: flex; align-items: center; gap: 10px; position: relative; z-index: 1001;
  color: #fff; font-weight: 800; font-size: 22px; letter-spacing: -.02em;
}
.logo-mark {
  width: 38px; height: 38px; border-radius: 12px;
  display: inline-flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,.14); color: #d1fae5;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.22);
  backdrop-filter: blur(10px);
}
.nav-menu { display: flex; align-items: center; gap: 28px; }
.nav-link {
  color: rgba(255,255,255,.86); font-size: .95rem; font-weight: 600; position: relative;
}
.nav-link::after {
  content: ""; position: absolute; left: 0; bottom: -6px; width: 0; height: 2px;
  background: rgba(255,255,255,.9); border-radius: 999px; transition: width .28s ease;
}
.nav-link:hover, .nav-link.active { color: #fff; }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }
.nav-toggle-input, .nav-toggle-label, .nav-overlay { display: none; }
.icon-close { display: none; 
background: linear-gradient(135deg, var(--clr-brand) 0%, var(--clr-brand-deep) 52%, var(--clr-brand-2) 100%);
box-shadow: 0 10px 30px rgba(13, 148, 136, .16);
border-radius: 5px;}
.nav-toggle-input:checked + .nav-toggle-label .icon-menu { display: none; }
.nav-toggle-input:checked + .nav-toggle-label .icon-close { display: block; }

.page-wrap { display: flex; flex-direction: column; min-height: calc(100vh - var(--header-height)); }
.main-content { flex: 1; padding: 44px 0 84px; display: flex; flex-direction: column; gap: 28px; }
.hero-header { text-align: center; margin-bottom: 8px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px; margin-bottom: 14px; padding: 8px 14px;
  border-radius: 999px; background: rgba(255,255,255,.75); border: 1px solid rgba(13,148,136,.12);
  color: var(--clr-brand-deep); font-size: .85rem; font-weight: 700; box-shadow: var(--shadow-soft);
  backdrop-filter: blur(10px);
}
.hero-title {
  font-size: clamp(2rem, 3vw, 3rem); color: var(--clr-text-dark); margin-bottom: 12px;
  font-weight: 800; line-height: 1.12; letter-spacing: -.03em;
}
.hero-desc { font-size: 1.03rem; color: var(--clr-text-muted); max-width: 720px; margin: 0 auto; }

@media (max-width: 768px) {
  .hero-desc {
    font-size: 0.95rem;
    max-width: 100%;
    padding: 0 15px;
    line-height: 1.6;
  }
}

.section-card {
  position: relative;
  background: var(--clr-bg-surface);
  backdrop-filter: blur(14px);
  border-radius: var(--radius);
  padding: 30px;
  border: 1px solid var(--clr-border);
  box-shadow: var(--shadow-soft);
}
.section-title { font-size: 1.55rem; font-weight: 800; color: var(--clr-text-dark); margin-bottom: 8px; letter-spacing: -.02em; }
.section-subtitle { font-size: .96rem; color: var(--clr-text-muted); margin-bottom: 20px; padding-bottom: 15px; border-bottom: 1px solid rgba(148,163,184,.14); }
.section-title-sm { font-size: 1.15rem; font-weight: 800; color: var(--clr-text-dark); margin: 24px 0 12px; }
p { margin-bottom: 16px; font-size: .97rem; }

.breadcrumb { font-size: .92rem; color: var(--clr-text-muted); margin-bottom: 10px; font-weight: 500; }
.breadcrumb a { color: var(--clr-brand); }
.breadcrumb a:hover { text-decoration: underline; }

.font-grid-wrap {
  padding: 16px;
  border-radius: calc(var(--radius) + 4px);
  background: linear-gradient(180deg, rgba(255,255,255,.72), rgba(255,255,255,.44));
  border: 1px solid rgba(255,255,255,.6);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.6);
}
.font-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }


.font-grid .font-card:nth-child(15n + 1) .pill  { background:#ccfbf1; color:#0f766e; border-color:rgba(13,148,136,.12); }
.font-grid .font-card:nth-child(15n + 2) .pill  { background:#dbeafe; color:#1d4ed8; border-color:rgba(59,130,246,.12); }
.font-grid .font-card:nth-child(15n + 3) .pill  { background:#fef3c7; color:#b45309; border-color:rgba(245,158,11,.16); }
.font-grid .font-card:nth-child(15n + 4) .pill  { background:#ede9fe; color:#6d28d9; border-color:rgba(109,40,217,.14); }
.font-grid .font-card:nth-child(15n + 5) .pill  { background:#fce7f3; color:#be185d; border-color:rgba(190,24,93,.14); }
.font-grid .font-card:nth-child(15n + 6) .pill  { background:#dcfce7; color:#15803d; border-color:rgba(21,128,61,.14); }
.font-grid .font-card:nth-child(15n + 7) .pill  { background:#ffe4e6; color:#be123c; border-color:rgba(190,18,60,.14); }
.font-grid .font-card:nth-child(15n + 8) .pill  { background:#e0f2fe; color:#0369a1; border-color:rgba(3,105,161,.14); }
.font-grid .font-card:nth-child(15n + 9) .pill  { background:#f3e8ff; color:#7e22ce; border-color:rgba(126,34,206,.14); }
.font-grid .font-card:nth-child(15n + 10) .pill { background:#ffedd5; color:#c2410c; border-color:rgba(194,65,12,.14); }
.font-grid .font-card:nth-child(15n + 11) .pill { background:#ecfccb; color:#4d7c0f; border-color:rgba(77,124,15,.14); }
.font-grid .font-card:nth-child(15n + 12) .pill { background:#f1f5f9; color:#475569; border-color:rgba(71,85,105,.14); }
.font-grid .font-card:nth-child(15n + 13) .pill { background:#fae8ff; color:#a21caf; border-color:rgba(162,28,175,.14); }
.font-grid .font-card:nth-child(15n + 14) .pill { background:#cffafe; color:#0f766e; border-color:rgba(15,118,110,.14); }
.font-grid .font-card:nth-child(15n + 15) .pill { background:#fef9c3; color:#a16207; border-color:rgba(161,98,7,.14); }

.font-card {
  position: relative; overflow: hidden; display: block; border-radius: 16px; padding: 18px;
  border: 1px solid rgba(13,148,136,.10);
  background: linear-gradient(180deg, rgba(255,255,255,.96) 0%, rgba(240,253,250,.90) 100%);
  box-shadow: var(--shadow-card);
  transition: transform .32s cubic-bezier(.22,1,.36,1), box-shadow .32s ease, border-color .32s ease;
  animation: fadeUp .7s ease both;
}
.font-card::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(120deg, transparent 0%, rgba(255,255,255,.35) 35%, transparent 65%);
  transform: translateX(-120%); transition: transform .8s ease;
}
.font-card:hover {
  transform: translateY(-6px);
  border-color: rgba(13,148,136,.22);
  box-shadow: var(--shadow-card-hover);
}
.font-card:hover::before { transform: translateX(120%); }
.font-card:nth-child(1){animation-delay:.04s}.font-card:nth-child(2){animation-delay:.08s}.font-card:nth-child(3){animation-delay:.12s}.font-card:nth-child(4){animation-delay:.16s}.font-card:nth-child(5){animation-delay:.20s}.font-card:nth-child(6){animation-delay:.24s}
.pill {
  display: inline-flex; align-items: center; padding: 6px 12px; border-radius: 999px; font-size: .76rem;
  font-weight: 700; margin-bottom: 12px; border: 1px solid transparent;
}
.pill-bamini { background: #ccfbf1; color: #0f766e; border-color: rgba(13,148,136,.12); }
.pill-tab { background: #f1f5f9; color: #475569; }
.pill-sr { background: #d1fae5; color: #047857; }
.pill-vanavil { background: #ffedd5; color: #c2410c; }
.pill-inaimathi { background: #e0e7ff; color: #4338ca; }
.pill-senthamil { background: #fce7f3; color: #be185d; }
.fc-title { font-size: 1.04rem; font-weight: 800; color: var(--clr-text-dark); margin-bottom: 5px; }
.fc-desc { font-size: .87rem; color: var(--clr-text-muted); }

.check-list, .step-list { margin-bottom: 20px; }
.check-list li, .step-list li { position: relative; padding-left: 24px; margin-bottom: 12px; font-size: .96rem; }
.check-list li::before { content: "✓"; position: absolute; left: 0; color: var(--clr-brand-2); font-weight: 800; }
.step-list { counter-reset: steps; }
.step-list li { font-weight: 700; color: var(--clr-text-dark); }
.step-list li::before { counter-increment: steps; content: counter(steps) "."; position: absolute; left: 0; color: var(--clr-brand); font-weight: 800; }
.step-list span { font-weight: 400; color: var(--clr-text-main); }

.faq-list { display: grid; gap: 18px; }
.faq-item {
  padding: 18px 18px 16px; border-radius: 16px;
  background: linear-gradient(180deg, rgba(255,255,255,.82), rgba(248,250,252,.95));
  border: 1px solid rgba(13,148,136,.08);
  transition: transform .24s ease, box-shadow .24s ease, border-color .24s ease;
}
.faq-item:hover { transform: translateY(-2px); box-shadow: var(--shadow-card); border-color: rgba(13,148,136,.16); }
.faq-q { display: flex; align-items: flex-start; gap: 12px; font-size: .96rem; font-weight: 700; color: var(--clr-text-dark); margin-bottom: 6px; }
.faq-icon {
  width: 24px; height: 24px; border-radius: 7px; flex-shrink: 0; margin-top: 1px;
  display: inline-flex; align-items: center; justify-content: center; font-size: .75rem; font-weight: 800;
  background: linear-gradient(135deg, #ccfbf1, #d1fae5); color: var(--clr-brand-deep);
}
.faq-a { padding-left: 36px; font-size: .91rem; color: var(--clr-text-muted); }

.converter-layout {
  display: grid; grid-template-columns: 1fr; gap: 1.3rem;
  background: linear-gradient(180deg, rgba(255,255,255,.88), rgba(255,255,255,.68));
  padding: 22px; border-radius: calc(var(--radius) + 2px); border: 1px solid rgba(13,148,136,.08);
  box-shadow: var(--shadow-soft); backdrop-filter: blur(14px);
}
@media(min-width: 768px) { .converter-layout { grid-template-columns: 1fr auto 1fr; align-items: stretch; } }
.box {
  border-radius: 16px; overflow: hidden; display: flex; flex-direction: column; background: rgba(255,255,255,.98);
  border: 1px solid rgba(148,163,184,.16); box-shadow: 0 8px 24px rgba(15,23,42,.04);
}
.box-header {
  padding: 14px 16px; background: linear-gradient(180deg, rgba(240,253,250,.75), rgba(248,250,252,.9));
  border-bottom: 1px solid rgba(148,163,184,.12); font-weight: 700; color: var(--clr-text-dark);
  display: flex; justify-content: space-between; align-items: center;
}
textarea, input, select {
  width: 100%; border: 1px solid rgba(148,163,184,.16); border-radius: 12px; outline: none;
  font-size: 1rem; font-family: inherit; color: var(--clr-text-dark); background: rgba(255,255,255,.96);
  transition: border-color .22s ease, box-shadow .22s ease;
}
textarea:focus, input:focus, select:focus {
  border-color: rgba(13,148,136,.35);
  box-shadow: 0 0 0 4px rgba(13,148,136,.08);
}
textarea {
  height: 260px; padding: 1rem; resize: vertical; border: none; box-shadow: none; background: transparent;
}
.swap-btn {
  width: 52px; height: 52px; border-radius: 50%; background: linear-gradient(135deg, rgba(255,255,255,.95), rgba(236,253,245,.95));
  border: 1px solid rgba(13,148,136,.14); color: var(--clr-brand); display: flex; align-items: center; justify-content: center;
  margin: auto; box-shadow: 0 10px 24px rgba(13,148,136,.12); cursor: pointer; transform: rotate(90deg);
  transition: transform .28s ease, box-shadow .28s ease, background .28s ease;
  flex-shrink: 0;
}
.swap-btn:hover { box-shadow: 0 14px 28px rgba(13,148,136,.18); transform: rotate(90deg) scale(1.04); }
@media(min-width: 768px) { .swap-btn { transform: rotate(0deg); } .swap-btn:hover { transform: scale(1.04); } }

.rich-actions { display: flex; flex-wrap: wrap; gap: 8px; padding: 12px 16px; background: #f8fafc; border-top: 1px solid rgba(148,163,184,.14); }
.action-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 9px 14px;
  border-radius: 10px; border: 1px solid rgba(148,163,184,.16); background: #fff; cursor: pointer;
  font-size: .84rem; font-weight: 600; color: var(--clr-text-main);
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease, background .22s ease, color .22s ease;
}
.action-btn span.material-symbols-rounded { font-size: 18px; }
.action-btn:hover { transform: translateY(-2px); box-shadow: 0 10px 20px rgba(15,23,42,.06); }
.btn-copy, .btn-primary { background: linear-gradient(135deg, var(--clr-brand), var(--clr-brand-2)); color: white; border-color: transparent; }
.btn-copy:hover, .btn-primary:hover { filter: brightness(1.02); color: #fff; }
.btn-reset:hover { color: #dc2626; border-color: #fecaca; background: #fef2f2; }
.btn-wa:hover { color: #16a34a; border-color: #86efac; background: #f0fdf4; }
.btn-tg:hover { color: #0284c7; border-color: #7dd3fc; background: #f0f9ff; }
.btn-ig:hover { color: #db2777; border-color: #fbcfe8; background: #fdf2f8; }
.btn-email:hover { color: #ea580c; border-color: #fcd34d; background: #fffbeb; }
.btn-print:hover { color: #475569; border-color: #cbd5e1; background: #f1f5f9; }
.btn-doc:hover { color: var(--clr-brand); border-color: #99f6e4; background: #f0fdfa; }
.btn-txt:hover { color: var(--clr-brand-2); border-color: #a7f3d0; background: #ecfdf5; }

.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group.full { grid-column: 1 / -1; }
.form-group label { font-size: .92rem; font-weight: 700; color: var(--clr-text-dark); }
input, select { padding: 14px 16px; }
textarea.form-textarea { min-height: 170px; padding: 14px 16px; border: 1px solid rgba(148,163,184,.16); box-shadow: none; background: rgba(255,255,255,.96); }
.contact-note {
  padding: 16px 18px; border-radius: 14px; background: linear-gradient(135deg, rgba(204,251,241,.65), rgba(236,253,245,.82));
  border: 1px solid rgba(13,148,136,.10); color: var(--clr-text-main);
}

.site-footer { background: #0f172a; color: #cbd5e1; padding: 56px 0 22px; margin-top: auto; }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 36px; margin-bottom: 36px; }
.footer-col h4 { color: #fff; margin-bottom: 18px; font-size: 1.05rem; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: #94a3b8; font-size: .95rem; }
.footer-links a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(148,163,184,.18); padding-top: 18px; text-align: center; font-size: .9rem; }

.cta-panel {
  display: inline-flex; align-items: center; gap: 8px; padding: 14px 24px; border-radius: 999px;
  background: linear-gradient(135deg, var(--clr-brand), var(--clr-brand-2)); color: #fff; font-weight: 700;
  box-shadow: 0 14px 28px rgba(13,148,136,.18);
}
.cta-panel:hover { transform: translateY(-2px); }

.reveal { animation: fadeUp .72s ease both; }
.reveal.delay-1 { animation-delay: .08s; }
.reveal.delay-2 { animation-delay: .16s; }
.reveal.delay-3 { animation-delay: .24s; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}

@media (max-width: 768px) {
  .nav-toggle-label { display: block; cursor: pointer; color: #fff; position: relative; z-index: 1002; }
  .nav-menu {
    position: fixed; top: 0; right: 0; bottom: 0; width: 280px; background: rgba(255,255,255,.98);
    backdrop-filter: blur(12px); flex-direction: column; align-items: flex-start; gap: 14px; padding: 84px 22px 24px;
    box-shadow: -10px 0 30px rgba(15,23,42,.12); transform: translateX(100%); transition: transform .3s ease; z-index: 999;
  }
  .nav-link { width: 100%; color: var(--clr-text-main); padding: 10px 0; border-bottom: 1px solid rgba(148,163,184,.14); }
  .nav-link:hover, .nav-link.active { color: var(--clr-brand); }
  .nav-link::after { background: var(--clr-brand); bottom: 4px; }
  .nav-overlay { display: block; position: fixed; inset: 0; background: rgba(15,23,42,.35); opacity: 0; visibility: hidden; transition: .3s ease; z-index: 998; }
  .nav-toggle-input:checked ~ .nav-menu { transform: translateX(0); }
  .nav-toggle-input:checked ~ .nav-overlay { opacity: 1; visibility: visible; }
  .font-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
  .font-grid { grid-template-columns: 1fr; }
}

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

@media (max-width: 640px) {
  .main-content { padding-top: 30px; }
  .section-card { padding: 22px; }
  .rich-actions { justify-content: space-between; }
  .action-btn { flex: 1 1 calc(50% - 8px); padding: 9px 10px; font-size: .8rem; }
  .hero-title { font-size: 1.9rem; }
}