/* ===================================
   Nr Daily - Global Styles
   Modern, Clean, Premium Design System
   =================================== */

/* ===== CSS VARIABLES ===== */
:root {
  /* Colors - Refined Palette */
  --color-primary: #0066ff;
  --color-primary-dark: #0052cc;
  --color-primary-light: #4d94ff;
  --color-secondary: #00d9ff;
  --color-accent: #7c3aed;

  --color-black: #0a0a0a; /* Softer black */
  --color-white: #ffffff;
  --color-gray-50: #f8fafc;
  --color-gray-100: #f1f5f9;
  --color-gray-200: #e2e8f0;
  --color-gray-300: #cbd5e1;
  --color-gray-400: #94a3b8;
  --color-gray-500: #64748b;
  --color-gray-600: #475569;
  --color-gray-700: #334155;
  --color-gray-800: #1e293b;
  --color-gray-900: #0f172a;

  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;

  /* Typography */
  --font-primary: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  --font-display: "Space Grotesk", var(--font-primary);

  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.75rem;
  --font-size-7xl: 4.5rem;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;
  --spacing-5xl: 8rem;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Premium Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1),
    0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1),
    0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1),
    0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-glow: 0 0 25px rgba(0, 102, 255, 0.25);
  --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Layout */
  --container-max-width: 1280px;
  --container-padding: var(--spacing-lg);

  /* Z-Index Scale */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
}

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

::selection {
  background-color: rgba(0, 102, 255, 0.2);
  color: var(--color-primary-dark);
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-gray-800);
  background-color: var(--color-white);
  overflow-x: hidden;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--color-gray-50);
}
::-webkit-scrollbar-thumb {
  background: var(--color-gray-300);
  border-radius: 5px;
  border: 2px solid var(--color-gray-50);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-gray-400);
}

/* ===== TYPOGRAPHY ===== */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.1;
  color: var(--color-black);
  margin-bottom: var(--spacing-md);
  letter-spacing: -0.02em; /* Tighter tracking for display font */
}

h1 {
  font-size: var(--font-size-5xl);
}
h2 {
  font-size: var(--font-size-4xl);
}
h3 {
  font-size: var(--font-size-3xl);
}
h4 {
  font-size: var(--font-size-2xl);
}
h5 {
  font-size: var(--font-size-xl);
}
h6 {
  font-size: var(--font-size-lg);
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-gray-600);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-base);
}

a:hover {
  color: var(--color-primary-dark);
}

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

.gradient-text {
  background: linear-gradient(
    135deg,
    var(--color-primary),
    var(--color-secondary)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 800;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-4xl);
}

.section-title {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-md);
  position: relative;
  display: inline-block;
}

/* Premium underline effect for titles */
.section-title::after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: linear-gradient(
    90deg,
    var(--color-primary),
    var(--color-secondary)
  );
  border-radius: var(--radius-full);
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-gray-600);
  max-width: 600px;
  margin: 0 auto;
}

.section-cta {
  text-align: center;
  margin-top: var(--spacing-3xl);
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  font-family: var(--font-display);
  font-size: var(--font-size-base);
  font-weight: 600;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(
    135deg,
    var(--color-primary) 0%,
    var(--color-primary-dark) 100%
  );
  color: var(--color-white);
  box-shadow: 0 4px 6px rgba(0, 102, 255, 0.25),
    0 1px 3px rgba(0, 102, 255, 0.1);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(0, 102, 255, 0.3),
    0 4px 6px rgba(0, 102, 255, 0.1);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background: var(--color-white);
  color: var(--color-primary);
  border: 2px solid var(--color-gray-200); /* Subtler border initially */
}

.btn-secondary:hover {
  border-color: var(--color-primary);
  background: var(--color-gray-50);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ===== NAVIGATION ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.5); /* Lighter border */
  transition: all var(--transition-base);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03); /* Softer shadow */
  border-bottom-color: var(--color-gray-200);
}

.nav-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm) 0; /* Slightly tighter nav */
  height: 80px;
}

.logo {
  font-family: var(--font-display);
  font-size: var(--font-size-2xl);
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 0.25rem;
  transition: transform var(--transition-bounce);
}

.logo:hover {
  transform: scale(1.05);
}

.logo-nr {
  color: var(--color-black);
}
.logo-daily {
  color: var(--color-primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
  list-style: none;
}

.nav-links a {
  color: var(--color-gray-600);
  font-weight: 500;
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 1px;
  position: relative;
  padding: var(--spacing-sm) 0;
  transition: color var(--transition-base);
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--transition-base);
  border-radius: var(--radius-full);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-black);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

/* Dropdown */
.dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08); /* Premium shadow */
  list-style: none;
  min-width: 240px;
  padding: var(--spacing-sm);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  border: 1px solid var(--color-gray-100);
}

.dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.dropdown-menu a {
  display: block;
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  text-transform: none;
  letter-spacing: normal;
  font-size: var(--font-size-base);
  color: var(--color-gray-700);
}

.dropdown-menu a:hover {
  background: var(--color-gray-50);
  color: var(--color-primary);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
}

.menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-black);
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
}

.page-header {
  margin-top: 80px;
}

/* ===== FOOTER ===== */
.footer {
  background: var(--color-gray-900);
  color: var(--color-white);
  padding: var(--spacing-4xl) 0 var(--spacing-xl);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr repeat(4, 1fr);
  gap: var(--spacing-3xl);
  margin-bottom: var(--spacing-3xl);
}

.footer-section h4 {
  color: var(--color-white);
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-lg);
  opacity: 0.9;
}

.footer-section p {
  color: var(--color-gray-400);
  margin-bottom: var(--spacing-lg);
  font-size: 0.95rem;
}

.footer-section ul {
  list-style: none;
}
.footer-section ul li {
  margin-bottom: var(--spacing-sm);
}

.footer-section a {
  color: var(--color-gray-400);
  transition: color var(--transition-base);
  font-size: 0.95rem;
}

.footer-section a:hover {
  color: var(--color-primary-light);
}

.social-links {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, 0.05); /* Glassy background */
  border-radius: var(--radius-full);
  color: var(--color-gray-400);
  transition: all var(--transition-base);
}

.social-links a:hover {
  background: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(0, 102, 255, 0.2);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
  color: var(--color-gray-500);
  font-size: var(--font-size-sm);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
  :root {
    --font-size-5xl: 2.5rem;
    --font-size-4xl: 2rem;
    --font-size-3xl: 1.75rem;
  }

  /* Premium Mobile Menu Overlay */
  .nav-links {
    display: flex;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(5, 5, 5, 0.98); /* Deep premium black */
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    justify-content: center; /* Center vertically */
    padding: 80px 24px 40px;
    gap: 32px; /* Open spacing */
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1); /* Smooth eased transition */
    z-index: 2000;
  }

  .nav-links.active {
    opacity: 1;
    visibility: visible;
  }

  /* Typography & Layout */
  .nav-links li {
    width: 100%;
    text-align: center;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.4s ease;
  }

  /* Staggered Animation on Open */
  .nav-links.active li {
    opacity: 1;
    transform: translateY(0);
  }
  .nav-links.active li:nth-child(1) {
    transition-delay: 0.1s;
  }
  .nav-links.active li:nth-child(2) {
    transition-delay: 0.15s;
  }
  .nav-links.active li:nth-child(3) {
    transition-delay: 0.2s;
  }
  .nav-links.active li:nth-child(4) {
    transition-delay: 0.25s;
  }
  .nav-links.active li:nth-child(5) {
    transition-delay: 0.3s;
  }
  .nav-links.active li:nth-child(6) {
    transition-delay: 0.35s;
  }

  .nav-links a {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 600;
    color: var(--color-gray-300) !important;
    display: inline-block;
    padding: 4px 0;
    position: relative;
    transition: color 0.3s ease;
    letter-spacing: -0.5px;
  }

  .nav-links a.active,
  .nav-links a:hover {
    color: #ffffff !important;
    background: linear-gradient(90deg, #fff, #aaa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }

  /* Drill Down Submenu Logic */
  .dropdown-menu {
    display: block !important;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(5, 5, 5, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding-top: 10px;
    padding: 80px 24px ;
    flex-direction: column;
    gap: 20px;
    
    /* Animation State */
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 2005;
    visibility: hidden;
    overflow-y: auto;
  }

  .dropdown:hover .dropdown-menu {
    display: block !important;
    transform: translateX(100%);
    visibility: hidden;
  }

  /* Active Drill Down State */
  .dropdown.submenu-open .dropdown-menu {
    transform: translateX(0);
    visibility: visible;
  }

  /* Link Styling in Submenu */
  .dropdown.submenu-open .dropdown-menu a {
    font-size: 1.5rem;
    font-family: var(--font-display);
    color: var(--color-gray-300) !important;
    text-align: left;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    width: 100%;
    display: block;
    font-weight: 500;
  }

  .dropdown.submenu-open .dropdown-menu a:last-child {
    border-bottom: none;
  }

  .dropdown.submenu-open .dropdown-menu a:hover {
    color: white !important;
    padding-left: 10px;
    background: none;
    -webkit-text-fill-color: white;
  }

  /* Fix background-clip lint */
  .nav-links a.active,
  .nav-links a:hover {
    background-clip: text;
  }

  .menu-toggle {
    display: flex;
    position: relative; /* Essential for z-index */
    z-index: 10000;
  }

  /* Menu Toggle Animation */
  .menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
  }
  .menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  .menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
  }

  .footer-content {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --font-size-5xl: 2rem;
    --font-size-4xl: 1.75rem;
    --font-size-3xl: 1.5rem;
    --container-padding: var(--spacing-md);
  }
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }
}

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-20px);
  }
}

/* Animation Classes */
[data-aos] {
  opacity: 0;
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

[data-aos].aos-animate {
  opacity: 1;
}
[data-aos="fade-up"].aos-animate {
  animation: fadeInUp 0.8s ease-out forwards;
}
[data-aos="fade-right"].aos-animate {
  animation: fadeInUp 0.8s ease-out forwards;
}
[data-aos="fade-left"].aos-animate {
  animation: fadeInUp 0.8s ease-out forwards;
}
[data-aos="zoom-in"].aos-animate {
  animation: fadeIn 0.8s ease-out forwards;
}