/* Dhru Dhani E Serv — deep navy + teal + white */

:root {
  --navy: #0b1f3a;
  --navy-soft: #122a4a;
  --navy-deep: #071526;
  --teal: #0d9488;
  --teal-bright: #14b8a6;
  --teal-soft: #ccfbf1;
  --white: #ffffff;
  --off-white: #f5f8fc;
  --muted: #5b6b7c;
  --border: rgba(11, 31, 58, 0.12);
  --shadow: 0 12px 40px rgba(7, 21, 38, 0.12);
  --radius: 16px;
  --radius-sm: 10px;
  --max: 1100px;
  --header-h: 72px;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-ta: "Noto Sans Tamil", "Inter", "Latha", "Vijaya", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 12px);
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--navy);
  background: var(--white);
  line-height: 1.65;
  -webkit-font-smoothing: auto;
  -moz-osx-font-smoothing: auto;
  text-rendering: geometricPrecision;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: var(--teal);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--navy);
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 3px solid var(--teal-bright);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -48px;
  z-index: 1000;
  background: var(--teal);
  color: var(--white);
  padding: 8px 14px;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
}

.skip-link:focus {
  top: 12px;
}

.container {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(11, 31, 58, 0.96);
  backdrop-filter: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 1rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--white);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.logo:hover {
  color: var(--teal-soft);
}

.logo-text {
  font-size: 1.05rem;
}

.primary-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 0.25rem;
}

.primary-nav a {
  display: block;
  color: rgba(255, 255, 255, 0.88);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.55rem 0.85rem;
  border-radius: 999px;
}

.primary-nav a:hover,
.primary-nav a:focus-visible {
  color: var(--white);
  background: rgba(20, 184, 166, 0.18);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 10px;
  background: transparent;
  padding: 10px;
  cursor: pointer;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
}

.nav-toggle-bar {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--white);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Hero */
.hero {
  background:
    radial-gradient(900px 420px at 10% -10%, rgba(20, 184, 166, 0.22), transparent 55%),
    radial-gradient(700px 380px at 95% 20%, rgba(96, 165, 250, 0.16), transparent 50%),
    linear-gradient(165deg, var(--navy-deep) 0%, var(--navy) 55%, var(--navy-soft) 100%);
  color: var(--white);
  padding: clamp(3rem, 8vw, 5.5rem) 0;
}

.hero-inner {
  display: grid;
  gap: 2.5rem;
  align-items: center;
}

@media (min-width: 900px) {
  .hero-inner {
    grid-template-columns: 1.35fr 0.85fr;
    gap: 3rem;
  }
}

.eyebrow {
  display: inline-block;
  margin: 0 0 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--teal-bright);
  border: 1px solid rgba(20, 184, 166, 0.4);
  border-radius: 999px;
  padding: 0.4rem 0.85rem;
}

.hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 5vw, 3.15rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
  font-weight: 700;
}

.hero-tamil,
.section-tamil,
.track-tamil,
.card-tamil,
[lang="ta"] {
  font-family: var(--font-ta);
  font-weight: 700;
  letter-spacing: 0 !important;
  word-spacing: 0.02em;
  -webkit-font-smoothing: auto;
  -moz-osx-font-smoothing: auto;
  text-rendering: geometricPrecision;
  text-shadow: none !important;
  filter: none !important;
  transform: none !important;
  opacity: 1 !important;
}

.hero-tamil {
  margin: 0 0 1.25rem;
  font-size: clamp(1.4rem, 3vw, 1.75rem);
  color: #ffffff;
  line-height: 1.85;
  max-width: 36rem;
}

.section-tamil,
.track-tamil {
  margin: 0 0 0.55rem;
  font-size: clamp(1.25rem, 2.4vw, 1.45rem);
  color: var(--navy);
  line-height: 1.8;
}

.track-tamil {
  color: #ffffff;
}

.card-tamil {
  margin: 0 0 0.85rem;
  color: var(--teal);
  font-size: 1.25rem;
  line-height: 1.75;
}

.hero-lead {
  margin: 0 0 1.75rem;
  color: rgba(255, 255, 255, 0.72);
  font-size: 1.05rem;
  max-width: 36rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.98rem;
  line-height: 1.2;
  padding: 0.85rem 1.35rem;
  border-radius: 999px;
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.15s ease;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background: var(--teal);
  color: var(--white);
  border-color: var(--teal);
}

.btn-primary:hover {
  background: var(--teal-bright);
  border-color: var(--teal-bright);
  color: var(--white);
}

.btn-secondary {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.45);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--white);
  color: var(--white);
}

.hero-panel {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  padding: 1.5rem;
  backdrop-filter: none;
}

.hero-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.15rem;
}

.hero-stats li {
  display: grid;
  gap: 0.2rem;
  padding-left: 1rem;
  border-left: 3px solid var(--teal-bright);
}

.hero-stats strong {
  font-size: 1.05rem;
  color: var(--white);
}

.hero-stats span {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.95rem;
}

/* Services */
.services {
  padding: clamp(3rem, 7vw, 5rem) 0;
  background: var(--off-white);
}

.section-head {
  text-align: center;
  max-width: 36rem;
  margin: 0 auto 2.5rem;
}

.section-head h2 {
  margin: 0 0 0.6rem;
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  letter-spacing: -0.02em;
  color: var(--navy);
}

.section-head p {
  margin: 0;
  color: var(--muted);
}

.card-grid {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 720px) {
  .card-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.service-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.6rem 1.4rem;
  box-shadow: 0 4px 20px rgba(7, 21, 38, 0.04);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.service-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
  border-color: rgba(13, 148, 136, 0.35);
}

.card-icon {
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: var(--teal-soft);
  color: var(--teal);
  margin-bottom: 1.1rem;
}

.service-card h3 {
  margin: 0 0 0.35rem;
  font-size: 1.2rem;
  color: var(--navy);
}

.card-tamil {
  margin: 0 0 0.75rem;
  color: var(--teal);
  font-weight: 600;
  font-size: 1.15rem;
  line-height: 1.65;
}

.service-card > p:last-child {
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
}

/* Track */
.track {
  padding: clamp(3rem, 7vw, 4.5rem) 0;
  background: var(--navy);
  color: var(--white);
}

.track-inner {
  display: grid;
  gap: 2rem;
  align-items: start;
}

@media (min-width: 900px) {
  .track-inner {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 2.5rem;
  }
}

.track-copy h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: -0.02em;
}

.track-copy p {
  margin: 0 0 0.85rem;
  color: rgba(255, 255, 255, 0.75);
  max-width: 32rem;
}

.track-note {
  font-family: var(--font-ta);
  font-weight: 600;
  font-size: 1.05rem;
  line-height: 1.75;
  color: #e7fff9 !important;
}

.track-panel {
  display: grid;
  gap: 1.15rem;
}

.track-form {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: grid;
  gap: 1rem;
}

.track-mode {
  margin: 0;
  padding: 0;
  border: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1rem;
  align-items: center;
}

.track-mode legend {
  padding: 0;
  margin: 0 0 0.55rem;
  width: 100%;
  font-weight: 600;
  font-size: 0.92rem;
  color: rgba(255, 255, 255, 0.92);
}

.mode-option {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.05);
  cursor: pointer;
  font-weight: 500;
  font-size: 0.92rem;
  color: rgba(255, 255, 255, 0.9);
}

.mode-option:has(input:checked) {
  border-color: var(--teal-bright);
  background: rgba(20, 184, 166, 0.22);
  color: var(--white);
}

.mode-option input {
  accent-color: var(--teal-bright);
  width: 1rem;
  height: 1rem;
  margin: 0;
}

.form-row {
  display: grid;
  gap: 0.45rem;
}

.form-row label {
  font-weight: 600;
  font-size: 0.92rem;
  color: rgba(255, 255, 255, 0.92);
}

.form-row input,
.form-row select {
  width: 100%;
  font: inherit;
  font-size: 1rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.95);
  color: var(--navy);
}

.form-row select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath fill='%230b1f3a' d='M4 6l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.9rem center;
  padding-right: 2.4rem;
}

.form-row input::placeholder {
  color: #8a97a8;
}

.form-row[hidden],
#service-row[hidden] {
  display: none !important;
}

.captcha-row .captcha-controls {
  display: grid;
  grid-template-columns: auto auto 1fr;
  gap: 0.65rem;
  align-items: center;
}

@media (max-width: 520px) {
  .captcha-row .captcha-controls {
    grid-template-columns: 1fr auto;
  }

  .captcha-image {
    grid-column: 1 / -1;
    justify-self: start;
  }
}

.captcha-image {
  width: 160px;
  height: 48px;
  object-fit: contain;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  background: #e8eef5;
}

.btn-captcha {
  padding: 0.65rem 0.95rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
  font-size: 0.88rem;
  font-weight: 600;
  white-space: nowrap;
}

.btn-captcha:hover {
  background: rgba(20, 184, 166, 0.25);
  border-color: var(--teal-bright);
  color: var(--white);
}

.btn-captcha:disabled,
#track-submit:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.track-message {
  margin: 0;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  background: rgba(20, 184, 166, 0.18);
  border: 1px solid rgba(20, 184, 166, 0.4);
  color: var(--teal-soft);
  font-size: 0.95rem;
}

.track-message.is-error {
  background: rgba(220, 80, 80, 0.18);
  border-color: rgba(248, 113, 113, 0.45);
  color: #fecaca;
}

.track-message.is-loading {
  background: rgba(96, 165, 250, 0.16);
  border-color: rgba(96, 165, 250, 0.4);
  color: #dbeafe;
}

.track-message[hidden] {
  display: none;
}

.track-result {
  background: var(--white);
  color: var(--navy);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius);
  padding: 1.35rem 1.4rem 1.25rem;
  box-shadow: 0 8px 28px rgba(7, 21, 38, 0.25);
}

.track-result[hidden] {
  display: none;
}

.track-result-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--teal);
}

.track-result-head h3 {
  margin: 0;
  font-size: 1.15rem;
  color: var(--navy);
}

.demo-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--white);
  background: #b45309;
  border-radius: 6px;
  padding: 0.3rem 0.55rem;
}

.demo-badge[hidden] {
  display: none;
}

.result-fields {
  margin: 0;
  display: grid;
  gap: 0.75rem;
}

.result-fields > div {
  display: grid;
  gap: 0.15rem;
  padding: 0.55rem 0.65rem;
  border-radius: 8px;
  background: var(--off-white);
  border: 1px solid var(--border);
}

@media (min-width: 560px) {
  .result-fields {
    grid-template-columns: 1fr 1fr;
  }

  .result-fields > div:last-child:nth-child(odd) {
    grid-column: 1 / -1;
  }
}

.result-fields dt {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--teal);
}

.result-fields dd {
  margin: 0;
  font-weight: 600;
  font-size: 1rem;
  color: var(--navy);
  word-break: break-word;
}

#result-status {
  color: var(--teal);
}

.result-disclaimer {
  margin: 1rem 0 0;
  font-size: 0.82rem;
  line-height: 1.5;
  color: var(--muted);
}

/* Contact */
.contact {
  padding: clamp(3rem, 7vw, 5rem) 0;
  background: var(--white);
}

.contact-grid {
  display: grid;
  gap: 1rem;
  margin-bottom: 2rem;
}

@media (min-width: 720px) {
  .contact-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.contact-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem 1.25rem;
  background: var(--off-white);
}

.contact-card h3 {
  margin: 0 0 0.4rem;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal);
}

.contact-card p {
  margin: 0;
  font-weight: 600;
  color: var(--navy);
  word-break: break-word;
}

.contact-card a {
  color: var(--navy);
  text-decoration: none;
}

.contact-card a:hover {
  color: var(--teal);
  text-decoration: underline;
}

.contact-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.85rem 1rem;
  margin: 0;
  color: var(--muted);
}

/* Footer */
.site-footer {
  background: var(--navy-deep);
  color: rgba(255, 255, 255, 0.78);
  padding: 2.5rem 0 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-inner {
  display: grid;
  gap: 0.85rem;
  text-align: center;
}

.footer-brand strong {
  display: block;
  color: var(--white);
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
}

.footer-brand p {
  margin: 0;
  font-size: 0.95rem;
}

.footer-tagline {
  margin: 0;
  color: var(--teal-bright);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.footer-meta {
  margin: 0;
  font-size: 0.92rem;
}

.footer-meta a {
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
}

.footer-meta a:hover {
  color: var(--teal-bright);
}

.footer-copy {
  margin: 0.5rem 0 0;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
}

/* Mobile nav */
@media (max-width: 800px) {
  .nav-toggle {
    display: inline-flex;
  }

  .primary-nav {
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--navy-deep);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding: 0.75rem 1rem 1rem;
    display: none;
  }

  .primary-nav.is-open {
    display: block;
  }

  .primary-nav ul {
    flex-direction: column;
    gap: 0.15rem;
  }

  .primary-nav a {
    padding: 0.85rem 1rem;
    border-radius: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .btn,
  .service-card,
  .nav-toggle-bar {
    transition: none;
  }
}


.hero-tamil-sub {
  margin-top: -0.55rem;
  font-size: clamp(1.15rem, 2.4vw, 1.4rem) !important;
  font-weight: 600 !important;
  color: #e7fff9 !important;
}