/* Header */
.header {
  background: rgba(26, 27, 58, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(147, 51, 234, 0.3);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 4px 20px rgba(10, 11, 30, 0.3);
}

.navbar {
  padding: 0.5rem 0;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  gap: 1.5rem; /* Add space between brand and menu */
  padding-left: 0.25rem; /* was 1rem via .container; make it nearly flush */
}

/* Widen header container slightly to fit full nav on desktop */
.header .container {
  max-width: 1280px;
}

/* HD tweaks: keep full menu (no hamburger) but tighten spacing so nothing is cut off */
@media (min-width: 993px) and (max-width: 1280px) {
  .nav-menu {
    gap: 1rem;
  }
  .nav-link {
    padding: 0.4rem 0.75rem;
    font-size: 0.95rem;
  }
  .btn-primary,
  .btn-secondary {
    padding: 0.55rem 1.1rem;
    font-size: 0.85rem;
  }
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: var(--radius-md);
  background: rgba(30, 64, 175, 0.1);
  border: 1px solid rgba(147, 51, 234, 0.3);
  transition: all 0.3s ease;
}

.mobile-menu-toggle:hover {
  background: rgba(30, 64, 175, 0.2);
  transform: scale(1.05);
}

.mobile-menu-toggle span {
  width: 25px;
  height: 3px;
  background: var(--primary-color);
  margin: 3px 0;
  border-radius: 2px;
  transition: 0.3s;
}

.mobile-menu-toggle.active span:nth-child(1) {
  transform: rotate(-45deg) translate(-5px, 6px);
}

.mobile-menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
  transform: rotate(45deg) translate(-5px, -6px);
}

.nav-brand {
  margin-left: 0.75rem;
  margin-left: 0 !important; /* override previous margins at all breakpoints */
}

.nav-brand a {
  text-decoration: none;
  color: inherit;
  display: block;
  transition: all 0.3s ease;
  border-radius: var(--radius-md);
  padding: 0.5rem;
}

.nav-brand a:hover {
  transform: scale(1.05);
  background: rgba(30, 64, 175, 0.1);
  box-shadow: 0 4px 15px rgba(30, 64, 175, 0.2);
}

.nav-brand h1 {
  font-size: 1.5rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 2px 4px rgba(30, 64, 175, 0.1));
  margin: 0;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.nav-brand a:hover h1 {
  filter: drop-shadow(0 4px 8px rgba(30, 64, 175, 0.3));
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: nowrap;
  white-space: nowrap;
}

.nav-link {
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 500;
  transition: all 0.3s ease;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  position: relative;
}

.nav-link:hover {
  color: var(--primary-light);
  background: rgba(30, 64, 175, 0.15);
  transform: translateY(-1px);
}

.nav-link.active {
  color: white !important;
  background: linear-gradient(135deg, #d97706 0%, #f59e0b 100%) !important;
  font-weight: 700;
  box-shadow: 0 4px 15px rgba(245, 158, 11, 0.4);
  transform: translateY(-2px);
  border: 1px solid rgba(255, 215, 0, 0.4);
}

.nav-link.active::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.3) 0%,
    rgba(255, 255, 255, 0.1) 100%
  );
  border-radius: var(--radius-md);
  pointer-events: none;
}

.nav-link.active:hover {
  background: linear-gradient(135deg, #b45309 0%, #d97706 100%) !important;
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.5);
  transform: translateY(-2px);
}

/* Buttons */
.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-lg);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.875rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--text-white);
  box-shadow: var(--shadow-primary);
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.25),
    transparent
  );
  transition: left 0.5s ease;
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-primary-hover);
  background: linear-gradient(135deg, #1e3a8a 0%, #7c3aed 100%);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(10px);
}

.btn-secondary::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-accent);
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: -1;
}

.btn-secondary:hover::before {
  opacity: 1;
}

.btn-secondary:hover {
  color: var(--text-white);
  border-color: var(--accent-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-success);
}

.btn-large {
  padding: 1rem 2rem;
  font-size: 1rem;
}

.btn-full {
  width: 100%;
  justify-content: center;
}

/* Cards */
.card {
  background: var(--gradient-card);
  backdrop-filter: blur(20px);
  padding: 2rem;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.card:hover::before {
  transform: scaleX(1);
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-primary);
  border-color: rgba(147, 51, 234, 0.5);
  background: rgba(45, 27, 105, 0.95);
}

.card-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  filter: drop-shadow(0 4px 8px rgba(30, 64, 175, 0.2));
}

.card h4 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.card p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  line-height: 1.6;
}

.card-rate {
  font-size: 1.5rem;
  font-weight: 800;
  background: var(--gradient-success);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.card-usdt {
  border-left: 4px solid var(--primary-color);
  box-shadow: var(--shadow-primary);
}

.card-token {
  border-left: 4px solid var(--accent-gold);
  box-shadow: var(--shadow-gold);
}

/* Form Elements */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-weight: 500;
  color: var(--text-primary);
  font-size: 0.875rem;
}

.form-group input,
.form-group select {
  padding: 1rem;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-lg);
  font-size: 1rem;
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--shadow-sm);
  color: var(--text-primary);
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: var(--shadow-primary);
  background: rgba(255, 255, 255, 0.05);
  transform: translateY(-1px);
}

.form-group input:hover,
.form-group select:hover {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-md);
}

/* Section Headers */
.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.section-description {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Footer */
.footer {
  background: var(--bg-dark);
  color: white;
  padding: 2rem 0;
  text-align: center;
  margin-top: auto;
}

.footer p {
  color: #9ca3af;
}

/* Responsive Design for Components */
@media (max-width: 992px) {
  .nav-menu {
    gap: 1.2rem;
  }

  .nav-link {
    padding: 0.4rem 0.8rem;
    font-size: 0.95rem;
  }

  .btn-primary,
  .btn-secondary {
    padding: 0.6rem 1.3rem;
    font-size: 0.85rem;
  }
}

/* Mobile & tablet menu responsive styles (up to 992px) */
@media (max-width: 992px) {
  .mobile-menu-toggle {
    display: flex;
  }

  .nav-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(26, 27, 58, 0.98);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(147, 51, 234, 0.3);
    border-top: none;
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    flex-direction: column;
    padding: 1rem;
    gap: 0.5rem;
    box-shadow: 0 8px 25px rgba(10, 11, 30, 0.4);
    transform: translateY(-10px);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
  }

  .nav-menu.show {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .navbar .container {
    flex-direction: row;
    align-items: center;
  }

  .nav-link {
    width: 100%;
    text-align: center;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    margin: 0.25rem 0;
    font-size: 1rem;
  }

  .btn-primary,
  .btn-secondary {
    width: 100%;
    justify-content: center;
    padding: 0.75rem 1rem;
    font-size: 1rem;
  }

  .container {
    padding: 0 1rem;
  }

  .nav-brand h1 {
    font-size: 1.3rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 0.75rem;
  }

  .nav-brand h1 {
    font-size: 1.1rem;
  }

  .nav-brand a {
    padding: 0.3rem;
  }

  .nav-brand a img {
    height: 40px !important;
  }

  .mobile-menu-toggle {
    padding: 0.4rem;
  }

  .mobile-menu-toggle span {
    width: 22px;
    height: 2.5px;
  }

  .section-title {
    font-size: 2rem;
  }

  .card {
    padding: 1.5rem;
  }

  .nav-menu {
    padding: 0.75rem;
  }

  .nav-link {
    padding: 0.6rem 0.8rem;
    font-size: 0.9rem;
  }
}

@media (min-width: 1200px) {
  .navbar .container {
    gap: 1.5rem; /* a bit more room on very wide screens */
  }

  .nav-brand {
    margin-left: 1.25rem;
  }
}

@media (min-width: 1001px) {
  .nav-menu {
    margin-left: 0.5rem; /* subtle extra space from brand */
  }
}

/* Left-align brand tighter to the edge */
.header .navbar .container {
  padding-left: 0.25rem; /* was 1rem via .container; make it nearly flush */
}

.header .nav-brand {
  margin-left: 0 !important; /* override previous margins at all breakpoints */
}

/* Overflow-aware navbar collapse (works beyond breakpoint if items don't fit) */
.navbar .container.is-collapsed .mobile-menu-toggle {
  display: flex;
}

.navbar .container.is-collapsed #navMenu {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: rgba(26, 27, 58, 0.98);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(147, 51, 234, 0.3);
  border-top: none;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  flex-direction: column;
  padding: 1rem;
  gap: 0.5rem;
  box-shadow: 0 8px 25px rgba(10, 11, 30, 0.4);
  transform: translateY(-10px);
  z-index: 1000;
}

/* Hidden state when not toggled */
.navbar .container.is-collapsed #navMenu:not(.show) {
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.navbar .container.is-collapsed #navMenu.show {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.navbar .container.is-collapsed .nav-link,
.navbar .container.is-collapsed .btn-primary,
.navbar .container.is-collapsed .btn-secondary {
  width: 100%;
  justify-content: center;
}
