/* ==========================================================================
   GLOBAL VARIABLES & DESIGN SYSTEM (V2 PREMIUM TROPICAL)
   ========================================================================== */
:root {
  /* Color Palette - Premium Tropical Theme */
  --clr-bg-main: #ffffff;
  --clr-bg-surface: #f8fafc;
  --clr-bg-elevated: #ffffff;
  --clr-bg-dark: hsl(210, 11%, 15%); /* Premium Charcoal */

  --clr-primary: hsl(38, 92%, 50%); /* Sunset Gold */
  --clr-primary-light: hsl(38, 92%, 60%);
  --clr-primary-dark: hsl(38, 92%, 40%);

  --clr-secondary: hsl(174, 100%, 29%); /* Deep Turquoise */
  --clr-secondary-light: hsl(174, 80%, 40%);
  --clr-secondary-dark: hsl(174, 100%, 20%);

  --clr-accent: hsl(199, 89%, 48%); /* Tropical Blue */

  --clr-text-main: hsl(215, 25%, 15%);
  --clr-text-muted: hsl(215, 15%, 45%);
  --clr-text-inverse: #ffffff;

  --clr-border: hsla(215, 25%, 15%, 0.08);
  --clr-danger: #ef4444;
  --clr-success: #10b981;

  /* Typography */
  --font-heading: "Montserrat", sans-serif;
  --font-body: "Poppins", sans-serif;

  /* Spacing & Layout */
  --container-max-width: 1400px;
  --container-padding: 2rem;
  --section-padding: 8rem;

  /* Effects & Utilities */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-medium: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.8s cubic-bezier(0.4, 0, 0.2, 1);

  --radius-sm: 0.5rem;
  --radius-md: 1.2rem;
  --radius-lg: 2rem;
  --radius-full: 9999px;

  /* Layered Shadows for Premium Depth */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md:
    0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg:
    0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-glow: 0 0 30px hsla(38, 92%, 50%, 0.2);
}

/* ==========================================================================
   RESET & BASE STYLES
   ========================================================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background-color: var(--clr-bg-main);
  color: var(--clr-text-main);
  line-height: 1.6;
  overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
}

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

ul {
  list-style: none;
}

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

/* ==========================================================================
   UTILITY CLASSES
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section {
  padding: var(--section-padding) 0;
}

.bg-surface {
  background-color: var(--clr-bg-surface);
}

.text-primary {
  color: var(--clr-primary);
}

.text-accent {
  color: var(--clr-accent);
}

.text-muted {
  color: var(--clr-text-muted);
}

.text-center {
  text-align: center;
}

.fw-bold {
  font-weight: 700;
}

.fw-medium {
  font-weight: 500;
}

.mb-4 {
  margin-bottom: 1rem;
}

.mb-8 {
  margin-bottom: 2rem;
}

.mt-8 {
  margin-top: 2rem;
}

/* Glassmorphism V2 */
.glass {
  background: hsla(0, 0%, 100%, 0.05);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid hsla(0, 0%, 100%, 0.1);
  box-shadow: var(--shadow-lg);
}

.glass-card {
  background: linear-gradient(
    135deg,
    hsla(0, 0%, 100%, 0.8) 0%,
    hsla(0, 0%, 100%, 0.4) 100%
  );
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid hsla(0, 0%, 100%, 0.2);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-medium);
}

.glass-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  border-color: var(--clr-primary);
}

.card-description {
  font-size: 0.85rem;
  color: var(--clr-text-muted);
  margin: 0.8rem 0;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Buttons V2 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 1rem 2.2rem;
  border-radius: var(--radius-full);
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--transition-medium);
  border: none;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(
    135deg,
    var(--clr-primary) 0%,
    var(--clr-primary-dark) 100%
  );
  color: var(--clr-text-inverse);
  box-shadow: 0 10px 20px hsla(38, 92%, 50%, 0.3);
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 15px 30px hsla(38, 92%, 50%, 0.4);
  filter: brightness(1.1);
}

.btn-secondary {
  background: linear-gradient(
    135deg,
    var(--clr-secondary) 0%,
    var(--clr-secondary-dark) 100%
  );
  color: var(--clr-text-inverse);
  box-shadow: 0 10px 20px hsla(174, 100%, 29%, 0.2);
}

.btn-secondary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 15px 30px hsla(174, 100%, 29%, 0.3);
  filter: brightness(1.1);
}

.btn-outline {
  background: transparent;
  color: var(--clr-text-main);
  border: 2px solid var(--clr-border);
}

.btn-outline:hover {
  border-color: var(--clr-secondary);
  color: var(--clr-secondary);
  background: hsla(174, 100%, 29%, 0.05);
}

/* ==========================================================================
   NAVIGATION V2
   ========================================================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: all var(--transition-medium);
  padding: 1.8rem 0;
  background-color: transparent;
}

.navbar.scrolled {
  padding: 1.2rem 0;
  background-color: hsla(210, 11%, 15%, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 2px solid hsla(174, 100%, 29%, 0.3);
  box-shadow: var(--shadow-md);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
}

.logo img {
  height: 95px;
  width: auto;
  object-fit: contain;
  transition: transform var(--transition-fast);
  filter: drop-shadow(0 2px 5px rgba(255, 255, 255, 0.9)) drop-shadow(0 0 15px rgba(255, 255, 255, 0.5));
}

.logo:hover img {
  transform: scale(1.02);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 3rem;
}

.nav-links a:not(.btn) {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  position: relative;
  padding: 0.5rem 0;
  color: var(--clr-text-inverse);
  opacity: 0.9;
}

.nav-links a:not(.btn)::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: linear-gradient(
    to right,
    var(--clr-primary),
    var(--clr-secondary)
  );
  transition: width var(--transition-medium);
  border-radius: var(--radius-full);
}

.nav-links a:not(.btn):hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-links a:not(.btn):hover,
.nav-links a.active {
  color: var(--clr-primary);
  opacity: 1;
}

.hamburger {
  display: none;
  font-size: 1.8rem;
  cursor: pointer;
  color: var(--clr-text-inverse);
}

/* Mobile Nav V2 */
@media (max-width: 992px) {
  .hamburger {
    display: block;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    max-width: 400px;
    height: 100vh;
    background: var(--clr-bg-dark);
    flex-direction: column;
    justify-content: center;
    padding: 4rem 2rem;
    transition: right var(--transition-medium);
    box-shadow: -15px 0 45px rgba(0, 0, 0, 0.6);
    border-left: 2px solid var(--clr-secondary);
  }

  .nav-links.active {
    right: 0;
  }
}

/* ==========================================================================
   FOOTER V2
   ========================================================================== */
.footer {
  background-color: var(--clr-bg-dark);
  color: var(--clr-text-inverse);
  border-top: 5px solid var(--clr-secondary);
  padding-top: 7rem;
  position: relative;
}

.footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(
    at top right,
    hsla(38, 92%, 50%, 0.05) 0,
    transparent 40%
  );
  pointer-events: none;
}

.footer-container {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 4rem;
  margin-bottom: 5rem;
}

.footer-col h3,
.footer-col h4 {
  margin-bottom: 2rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.footer-col h4 {
  color: var(--clr-primary);
  text-transform: uppercase;
  font-size: 1.1rem;
  letter-spacing: 1px;
}

.footer-col p {
  color: hsl(215, 15%, 70%);
  margin-bottom: 2rem;
  line-height: 1.8;
}

.social-links {
  display: flex;
  gap: 1.2rem;
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 45px;
  height: 45px;
  border-radius: 12px;
  background-color: hsla(0, 0%, 100%, 0.05);
  border: 1px solid hsla(0, 0%, 100%, 0.1);
  color: var(--clr-text-inverse);
  transition: all var(--transition-medium);
}

.social-links a:hover {
  background: linear-gradient(
    135deg,
    var(--clr-primary) 0%,
    var(--clr-primary-dark) 100%
  );
  color: var(--clr-text-inverse);
  transform: translateY(-5px) rotate(8deg);
  border-color: var(--clr-primary);
  box-shadow: var(--shadow-glow);
}

.footer-col ul li {
  margin-bottom: 1rem;
}

.footer-col ul a {
  color: hsl(215, 15%, 75%);
  font-weight: 500;
  transition: all var(--transition-fast);
}

.footer-col ul a:hover {
  color: var(--clr-primary);
  padding-left: 8px;
}

.newsletter-form {
  display: flex;
  gap: 0.6rem;
}

.newsletter-form input {
  flex: 1;
  padding: 1rem 1.2rem;
  border-radius: var(--radius-sm);
  background-color: hsla(0, 0%, 100%, 0.1);
  border: 1px solid hsla(0, 0%, 100%, 0.1);
  color: var(--clr-text-inverse);
  font-family: var(--font-body);
}

.newsletter-form input:focus {
  outline: none;
  border-color: var(--clr-primary);
  background-color: hsla(0, 0%, 100%, 0.15);
}

.newsletter-form button {
  padding: 1rem 1.5rem;
  border-radius: var(--radius-sm);
}

.footer-bottom {
  text-align: center;
  padding: 2.5rem 0;
  border-top: 1px solid hsla(0, 0%, 100%, 0.05);
  color: hsl(215, 15%, 60%);
  font-size: 0.95rem;
  font-weight: 500;
}

@media (max-width: 992px) {
  .footer-container {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 576px) {
  .footer-container {
    grid-template-columns: 1fr;
  }
}