/* ============================================================
   YASHIKA CHANDRAN — Global Stylesheet
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,600;0,700;0,900;1,400;1,600&family=Inter:wght@300;400;500;600&family=Space+Grotesk:wght@300;400;500;600;700&display=swap');

/* ── TOKENS ── */
:root {
  --dark-blue:   #0B3C6D;
  --deep-blue:   #0F5C8C;
  --teal:        #1FA3B1;
  --light-teal:  #3EC6A8;
  --black:       #000000;
  --white:       #FFFFFF;
  --off-white:   #F7F9FC;
  --gray-50:     #F0F4F8;
  --gray-100:    #E2E8F0;
  --gray-300:    #94A3B8;
  --gray-600:    #475569;
  --gray-800:    #1E293B;
  --accent:      #0F5C8C;
  --highlight:   #3EC6A8;

  --font-display: 'Playfair Display', Georgia, serif;
  --font-body:    'Inter', system-ui, sans-serif;
  --font-alt:     'Space Grotesk', sans-serif;

  --shadow-sm:  0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md:  0 4px 16px rgba(11,60,109,.10);
  --shadow-lg:  0 10px 40px rgba(11,60,109,.15);
  --shadow-xl:  0 20px 60px rgba(11,60,109,.18);

  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-xl:  32px;

  --transition: all .3s cubic-bezier(.4,0,.2,1);
  --transition-slow: all .6s cubic-bezier(.4,0,.2,1);
}

/* ── RESET ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  background: var(--white);
  color: var(--gray-800);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
ul { list-style: none; }

/* ── NAV ── */
.site-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--gray-100);
  transition: var(--transition);
}
.site-nav.scrolled {
  box-shadow: var(--shadow-md);
}
.nav-inner {
  max-width: 1280px; margin: 0 auto;
  padding: 0 2rem;
  height: 70px;
  display: flex; align-items: center; justify-content: space-between;
}

/* Logo */
.nav-logo {
  display: flex; align-items: center; gap: .75rem;
}
.logo-badge {
  width: 42px; height: 42px; border-radius: 10px;
  background: linear-gradient(135deg, var(--dark-blue), var(--teal));
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-weight: 900; font-size: 1.1rem;
  color: var(--white);
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(11,60,109,.3);
  transition: var(--transition);
}
.nav-logo:hover .logo-badge { transform: rotate(-5deg) scale(1.05); }
.logo-wordmark {
  display: flex; flex-direction: column;
  line-height: 1.1;
}
.logo-name {
  font-family: var(--font-alt);
  font-weight: 700; font-size: .85rem;
  color: var(--dark-blue);
  letter-spacing: .03em;
}
.logo-tagline {
  font-size: .65rem; color: var(--teal);
  letter-spacing: .12em; text-transform: uppercase;
}

/* Nav Links */
.nav-links {
  display: flex; align-items: center; gap: .25rem;
}
.nav-links a {
  padding: .5rem 1rem;
  font-family: var(--font-alt);
  font-size: .88rem; font-weight: 500;
  color: var(--gray-600);
  border-radius: var(--radius-sm);
  position: relative;
  transition: var(--transition);
}
.nav-links a::after {
  content: '';
  position: absolute; bottom: 2px; left: 50%; right: 50%;
  height: 2px; background: var(--teal);
  border-radius: 2px;
  transition: left .3s, right .3s;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--dark-blue);
  background: var(--gray-50);
}
.nav-links a.active::after,
.nav-links a:hover::after {
  left: 1rem; right: 1rem;
}

/* Nav Socials */
.nav-socials {
  display: flex; align-items: center; gap: .5rem;
}
.nav-socials a {
  width: 34px; height: 34px; border-radius: 50%;
  border: 1.5px solid var(--gray-100);
  display: flex; align-items: center; justify-content: center;
  color: var(--gray-600); font-size: .85rem;
  transition: var(--transition);
}
.nav-socials a:hover {
  border-color: var(--teal);
  color: var(--teal);
  background: rgba(31,163,177,.06);
  transform: translateY(-2px);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column; gap: 5px;
  padding: 4px;
}
.hamburger span {
  display: block; width: 24px; height: 2px;
  background: var(--dark-blue); border-radius: 2px;
  transition: var(--transition);
}
.hamburger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.is-open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Menu */
.mobile-nav {
  display: none;
  position: fixed; inset: 0; z-index: 999;
  background: var(--white);
  flex-direction: column; align-items: center; justify-content: center;
  gap: 1.5rem;
  padding-top: 70px;
  opacity: 0; transform: translateY(-10px);
  transition: var(--transition);
}
.mobile-nav.is-open {
  display: flex; opacity: 1; transform: translateY(0);
}
.mobile-nav a {
  font-family: var(--font-display);
  font-size: 2rem; font-weight: 600;
  color: var(--dark-blue);
  padding: .5rem 2rem;
  position: relative;
  transition: var(--transition);
}
.mobile-nav a::before {
  content: '';
  position: absolute; left: 0; top: 50%; transform: translateY(-50%);
  width: 4px; height: 0;
  background: var(--teal);
  border-radius: 2px;
  transition: height .3s;
}
.mobile-nav a:hover { color: var(--teal); }
.mobile-nav a:hover::before { height: 60%; }
.mobile-nav a.active { color: var(--teal); }
.mobile-nav a.active::before { height: 60%; }

.mobile-divider { width: 40px; height: 1px; background: var(--gray-100); }
.mobile-socials {
  display: flex; gap: 1rem;
}
.mobile-socials a {
  width: 40px; height: 40px; border-radius: 50%;
  border: 1.5px solid var(--gray-100);
  display: flex; align-items: center; justify-content: center;
  color: var(--gray-600); font-size: 1rem;
  transition: var(--transition);
}
.mobile-socials a:hover { border-color: var(--teal); color: var(--teal); }

/* ── PAGE WRAPPER ── */
.page-wrapper {
  padding-top: 70px;
  min-height: 100vh;
}

/* ── SECTION CONTAINERS ── */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}
.container-sm {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 2rem;
}
.section { padding: 6rem 0; }
.section-sm { padding: 4rem 0; }

/* ── SECTION LABELS ── */
.eyebrow {
  display: inline-flex; align-items: center; gap: .6rem;
  font-family: var(--font-alt);
  font-size: .72rem; font-weight: 600;
  letter-spacing: .16em; text-transform: uppercase;
  color: var(--teal);
  margin-bottom: .75rem;
}
.eyebrow::before {
  content: ''; width: 24px; height: 2px;
  background: var(--teal); border-radius: 2px;
  flex-shrink: 0;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--dark-blue);
  line-height: 1.15;
  margin-bottom: 1rem;
}
.section-title em {
  font-style: italic;
  color: var(--teal);
}
.section-subtitle {
  font-size: 1.05rem;
  color: var(--gray-600);
  max-width: 560px;
  line-height: 1.75;
}

/* ── BUTTONS ── */
.btn {
  display: inline-flex; align-items: center; gap: .6rem;
  padding: .85rem 2rem;
  border-radius: var(--radius-md);
  font-family: var(--font-alt);
  font-size: .9rem; font-weight: 600;
  letter-spacing: .04em;
  transition: var(--transition);
  cursor: pointer;
}
.btn-primary {
  background: var(--dark-blue);
  color: var(--white);
  box-shadow: 0 4px 16px rgba(11,60,109,.3);
}
.btn-primary:hover {
  background: var(--deep-blue);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(11,60,109,.35);
}
.btn-teal {
  background: linear-gradient(135deg, var(--teal), var(--light-teal));
  color: var(--white);
  box-shadow: 0 4px 16px rgba(31,163,177,.3);
}
.btn-teal:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(31,163,177,.4);
}
.btn-outline {
  border: 2px solid var(--dark-blue);
  color: var(--dark-blue);
  background: transparent;
}
.btn-outline:hover {
  background: var(--dark-blue);
  color: var(--white);
  transform: translateY(-2px);
}
.btn svg { flex-shrink: 0; transition: transform .3s; }
.btn:hover svg { transform: translateX(3px); }

/* ── CARDS ── */
.card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.card:hover {
  border-color: rgba(31,163,177,.3);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--teal), var(--light-teal));
  opacity: 0;
  transition: opacity .3s;
}
.card:hover::before { opacity: 1; }

.card-icon {
  width: 52px; height: 52px; border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 1.25rem;
  transition: var(--transition);
}
.card:hover .card-icon { transform: scale(1.1) rotate(-5deg); }

.card-title {
  font-family: var(--font-alt);
  font-size: 1.05rem; font-weight: 600;
  color: var(--dark-blue);
  margin-bottom: .5rem;
}
.card-text {
  font-size: .9rem; line-height: 1.75;
  color: var(--gray-600);
}

/* ── DIVIDERS ── */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gray-100), transparent);
  margin: 0 auto;
}

/* ── BADGES ── */
.badge {
  display: inline-flex; align-items: center; gap: .4rem;
  padding: .3rem .85rem;
  border-radius: 100px;
  font-size: .75rem; font-weight: 600;
  letter-spacing: .06em;
}
.badge-teal { background: rgba(31,163,177,.1); color: var(--teal); }
.badge-blue { background: rgba(11,60,109,.08); color: var(--dark-blue); }
.badge-green { background: rgba(62,198,168,.12); color: #0d9975; }

/* ── FOOTER ── */
.site-footer {
  background: var(--dark-blue);
  color: rgba(255,255,255,.65);
  padding: 3.5rem 0 2rem;
}
.footer-inner {
  max-width: 1280px; margin: 0 auto;
  padding: 0 2rem;
}
.footer-top {
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 2rem; flex-wrap: wrap;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(255,255,255,.1);
  margin-bottom: 2rem;
}
.footer-brand .logo-name { color: var(--white); font-size: 1rem; }
.footer-brand .logo-tagline { color: rgba(255,255,255,.4); }
.footer-brand p {
  margin-top: .75rem;
  font-size: .85rem; max-width: 280px; line-height: 1.7;
  color: rgba(255,255,255,.5);
}
.footer-nav h4 {
  font-family: var(--font-alt);
  font-size: .75rem; font-weight: 600;
  letter-spacing: .14em; text-transform: uppercase;
  color: rgba(255,255,255,.4);
  margin-bottom: 1rem;
}
.footer-nav ul { display: flex; flex-direction: column; gap: .6rem; }
.footer-nav a {
  font-size: .88rem; color: rgba(255,255,255,.6);
  transition: color .25s;
}
.footer-nav a:hover { color: var(--light-teal); }
.footer-socials-block h4 {
  font-family: var(--font-alt);
  font-size: .75rem; font-weight: 600;
  letter-spacing: .14em; text-transform: uppercase;
  color: rgba(255,255,255,.4);
  margin-bottom: 1rem;
}
.footer-socials-row {
  display: flex; gap: .75rem;
}
.footer-socials-row a {
  width: 38px; height: 38px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,.15);
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,.5); font-size: .85rem;
  transition: var(--transition);
}
.footer-socials-row a:hover {
  border-color: var(--light-teal);
  color: var(--light-teal);
  background: rgba(62,198,168,.1);
}
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 1rem;
  font-size: .8rem; color: rgba(255,255,255,.35);
}
.footer-bottom strong { color: rgba(255,255,255,.5); }

/* ── SCROLL ANIMATIONS ── */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .7s cubic-bezier(.4,0,.2,1),
              transform .7s cubic-bezier(.4,0,.2,1);
}
[data-reveal="left"] { transform: translateX(-28px); }
[data-reveal="right"] { transform: translateX(28px); }
[data-reveal="scale"] { transform: scale(.94); }
[data-reveal].in-view {
  opacity: 1;
  transform: none;
}

/* Stagger delays */
[data-delay="1"] { transition-delay: .1s; }
[data-delay="2"] { transition-delay: .2s; }
[data-delay="3"] { transition-delay: .3s; }
[data-delay="4"] { transition-delay: .4s; }
[data-delay="5"] { transition-delay: .5s; }
[data-delay="6"] { transition-delay: .6s; }

/* ── IMAGE PLACEHOLDER ── */
.img-placeholder {
  background: linear-gradient(135deg, var(--gray-50), var(--gray-100));
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: .75rem;
  color: var(--gray-300);
  position: relative; overflow: hidden;
}
.img-placeholder::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, transparent 40%, rgba(31,163,177,.06));
}
.img-placeholder-icon { font-size: 3rem; opacity: .4; }
.img-placeholder-label {
  font-family: var(--font-alt);
  font-size: .72rem; font-weight: 500;
  letter-spacing: .12em; text-transform: uppercase;
  opacity: .5;
}

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .nav-socials { display: none; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .section { padding: 4rem 0; }
  .container, .container-sm { padding: 0 1.25rem; }
}

@media (max-width: 480px) {
  .section { padding: 3rem 0; }
  .container, .container-sm { padding: 0 1rem; }
  .btn { padding: .75rem 1.5rem; font-size: .85rem; }
}