/* ============================================================
   Sree Datta Tours & Travels — Global Styles
   Shared: colors, typography, navbar, footer, buttons
   ============================================================ */

:root {
  --primary: #0B5ED7;
  --primary-dark: #084298;
  --primary-light: #3d8bfd;
  --secondary: #16A34A;
  --secondary-dark: #15803d;
  --accent: #F59E0B;
  --dark: #0F172A;
  --dark-soft: #1e293b;
  --light: #F8FAFC;
  --muted: #64748b;
  --white: #ffffff;
  --glass: rgba(255, 255, 255, 0.12);
  --glass-border: rgba(255, 255, 255, 0.22);
  --shadow-sm: 0 4px 20px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 12px 40px rgba(15, 23, 42, 0.1);
  --shadow-lg: 0 24px 60px rgba(15, 23, 42, 0.16);
  --shadow-primary: 0 12px 32px rgba(11, 94, 215, 0.35);
  --radius: 1.25rem;
  --radius-sm: 0.75rem;
  --transition: 0.35s cubic-bezier(0.22, 1, 0.36, 1);
  --nav-h: 80px;
  --font: "Poppins", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  color: var(--dark);
  background: var(--light);
  overflow-x: hidden;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition), opacity var(--transition);
}

ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

/* ---------- Buttons ---------- */
.btn {
  font-family: var(--font);
  font-weight: 600;
  border-radius: 999px;
  padding: 0.7rem 1.5rem;
  transition: transform var(--transition), box-shadow var(--transition),
    background var(--transition), color var(--transition),
    border-color var(--transition);
}

.btn-primary-lux {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: var(--white);
  border: none;
  box-shadow: var(--shadow-primary);
}

.btn-primary-lux:hover,
.btn-primary-lux:focus {
  color: var(--white);
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(11, 94, 215, 0.45);
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
}

.btn-outline-lux {
  background: transparent;
  color: var(--white);
  border: 1.5px solid rgba(255, 255, 255, 0.55);
  backdrop-filter: blur(8px);
}

.btn-outline-lux:hover,
.btn-outline-lux:focus {
  color: var(--dark);
  background: var(--white);
  border-color: var(--white);
  transform: translateY(-3px);
}

.btn-whatsapp {
  background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
  color: var(--white);
  border: none;
  box-shadow: 0 12px 28px rgba(37, 211, 102, 0.35);
}

.btn-whatsapp:hover,
.btn-whatsapp:focus {
  color: var(--white);
  transform: translateY(-3px);
  box-shadow: 0 16px 36px rgba(37, 211, 102, 0.45);
}

.btn-book {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: var(--white) !important;
  border: none;
  padding: 0.55rem 1.25rem;
  font-size: 0.875rem;
  box-shadow: 0 8px 20px rgba(11, 94, 215, 0.3);
}

.btn-book:hover {
  transform: translateY(-2px);
  color: var(--white) !important;
}

.btn-call {
  background: rgba(255, 255, 255, 0.12);
  color: var(--white) !important;
  border: 1px solid rgba(255, 255, 255, 0.35);
  padding: 0.55rem 1.15rem;
  font-size: 0.875rem;
  backdrop-filter: blur(10px);
}

.btn-call:hover {
  background: var(--secondary);
  border-color: var(--secondary);
  color: var(--white) !important;
  transform: translateY(-2px);
}

.navbar.scrolled .btn-call,
.navbar.nav-solid .btn-call {
  background: rgba(11, 94, 215, 0.08);
  color: var(--primary) !important;
  border-color: rgba(11, 94, 215, 0.25);
}

.navbar.scrolled .btn-call:hover,
.navbar.nav-solid .btn-call:hover {
  background: var(--secondary);
  color: var(--white) !important;
  border-color: var(--secondary);
}

/* ---------- Navbar ---------- */
.navbar {
  padding: 1rem 0;
  transition: background var(--transition), box-shadow var(--transition),
    padding var(--transition), backdrop-filter var(--transition);
  z-index: 1030;
}

.navbar.scrolled,
.navbar.nav-solid {
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: 0 8px 32px rgba(15, 23, 42, 0.25);
  padding: 0.65rem 0;
}

.brand-logo {
  display: block;
  height: 58px;
  width: auto;
  max-width: min(280px, 68vw);
  object-fit: contain;
  border-radius: 6px;
  background: #000;
}

.navbar-brand,
.footer-brand {
  padding-top: 0.15rem;
  padding-bottom: 0.15rem;
}

.footer-brand .brand-logo {
  height: 62px;
  max-width: 300px;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--white);
  font-size: 1.15rem;
  flex-shrink: 0;
  box-shadow: 0 8px 20px rgba(11, 94, 215, 0.35);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-name {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--white);
  letter-spacing: -0.01em;
}

.brand-sub {
  font-size: 0.68rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.navbar .nav-link {
  color: rgba(255, 255, 255, 0.82) !important;
  font-weight: 500;
  font-size: 0.9rem;
  padding: 0.5rem 0.75rem !important;
  position: relative;
}

.navbar .nav-link::after {
  content: "";
  position: absolute;
  left: 0.75rem;
  right: 0.75rem;
  bottom: 0.2rem;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
  border-radius: 2px;
}

.navbar .nav-link:hover,
.navbar .nav-link.active {
  color: var(--white) !important;
}

.navbar .nav-link:hover::after,
.navbar .nav-link.active::after {
  transform: scaleX(1);
}

.navbar-toggler:focus {
  box-shadow: none;
}

/* ---------- Page placeholder (structure only) ---------- */
.page-shell {
  padding-top: calc(var(--nav-h) + 3rem);
  padding-bottom: 4rem;
}

.page-shell-inner {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}

.page-shell .eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 0.75rem;
}

.page-shell h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.page-shell p {
  color: var(--muted);
  margin-bottom: 0;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.75);
  padding: 4.5rem 0 0;
  margin-top: auto;
}

.footer-brand .brand-name,
.footer-brand .brand-sub {
  color: var(--white);
}

.footer-brand .brand-sub {
  color: rgba(255, 255, 255, 0.55);
}

.footer-tagline {
  font-weight: 600;
  color: var(--accent);
  font-size: 0.95rem;
  margin-bottom: 0.75rem;
}

.footer-about {
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 1.25rem;
  max-width: 320px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 1.05rem;
  transition: background var(--transition), transform var(--transition),
    border-color var(--transition);
}

.footer-social a:hover {
  background: var(--primary);
  border-color: var(--primary);
  transform: translateY(-3px);
}

.footer-heading {
  font-size: 1rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 1.15rem;
}

.footer-links li {
  margin-bottom: 0.55rem;
}

.footer-links a {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.65);
}

.footer-links a:hover {
  color: var(--accent);
}

.footer-contact li {
  display: flex;
  gap: 0.65rem;
  align-items: flex-start;
  margin-bottom: 0.85rem;
  font-size: 0.9rem;
}

.footer-contact i {
  color: var(--accent);
  margin-top: 0.2rem;
}

.footer-contact a:hover {
  color: var(--white);
}

.footer-bottom {
  margin-top: 3rem;
  padding: 1.5rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem;
  font-size: 0.825rem;
  color: rgba(255, 255, 255, 0.45);
}

.footer-bottom p {
  margin: 0;
}

/* ---------- FAB WhatsApp ---------- */
.fab-whatsapp {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: linear-gradient(135deg, #25d366, #128c7e);
  color: var(--white);
  display: grid;
  place-items: center;
  font-size: 1.75rem;
  box-shadow: 0 10px 30px rgba(37, 211, 102, 0.45);
  z-index: 1040;
  transition: transform var(--transition), box-shadow var(--transition);
}

.fab-whatsapp:hover {
  color: var(--white);
  transform: scale(1.1);
}