*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
  scrollbar-width: none !important; /* Firefox */
  -ms-overflow-style: none !important; /* IE/Edge */
}

/* Hide all scrollbars globally while preserving smooth touch & mouse scrollability */
*::-webkit-scrollbar,
html::-webkit-scrollbar,
body::-webkit-scrollbar {
  display: none !important;
  width: 0 !important;
  height: 0 !important;
  background: transparent !important;
}

html {
  font-family: var(--font-family);
  font-size: 16px;
  background-color: var(--bg-body);
  color: var(--text-primary);
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
  height: 100%;
  scrollbar-width: none !important;
  -ms-overflow-style: none !important;
}

body {
  min-height: 100%;
  background-color: var(--bg-body);
  color: var(--text-primary);
  line-height: 1.45;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  padding-bottom: calc(var(--tabbar-height) + var(--safe-bottom));
}

@media (min-width: 992px) {
  body {
    padding-bottom: 0;
  }
}

/* Typography styles */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  letter-spacing: -0.022em;
  color: var(--text-primary);
  line-height: 1.2;
}

h1.large-title {
  font-size: clamp(26px, 4vw, 34px);
  letter-spacing: -0.03em;
}

h2.title-1 {
  font-size: clamp(22px, 3vw, 28px);
}

h3.title-2 {
  font-size: clamp(18px, 2.5vw, 22px);
}

p {
  color: var(--text-secondary);
  font-size: var(--font-size-subhead);
  line-height: 1.5;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: opacity var(--duration-fast) var(--ease-spring);
}

a:hover {
  opacity: 0.85;
}

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

button, input, select, textarea {
  font-family: inherit;
  font-size: 16px; /* Prevents auto zoom in iOS Safari */
}

button {
  cursor: pointer;
  border: none;
  background: transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  user-select: none;
  transition: transform var(--duration-fast) var(--ease-spring), opacity var(--duration-fast) var(--ease-spring), background var(--duration-fast) var(--ease-spring);
}

button:active {
  transform: scale(0.97);
}

/* iOS Primary Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: 16px;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  min-height: 44px;
  min-width: 44px;
  transition: all var(--duration-fast) var(--ease-spring);
}

.btn-primary {
  background: var(--color-primary);
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(var(--color-primary-rgb), 0.3);
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  color: #FFFFFF;
  opacity: 1;
}

.btn-secondary {
  background: var(--fill-secondary);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: var(--fill-primary);
  color: var(--text-primary);
  opacity: 1;
}

.btn-tinted {
  background: var(--color-primary-subtle);
  color: var(--color-primary);
}

.btn-tinted:hover {
  background: rgba(var(--color-primary-rgb), 0.2);
  color: var(--color-primary);
  opacity: 1;
}

.btn-outline {
  background: transparent;
  border: 1.5px solid var(--border-subtle);
  color: var(--text-primary);
}

.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-danger {
  background: var(--color-danger);
  color: #FFFFFF;
}

.btn-success {
  background: var(--color-success);
  color: #FFFFFF;
}

.btn-block {
  width: 100%;
}

.btn-sm {
  padding: 8px 14px;
  font-size: 14px;
  min-height: 36px;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 15px 26px;
  font-size: 17px;
  min-height: 50px;
  border-radius: var(--radius-lg);
}

/* Form Controls with iOS Appearance */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}

.form-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.form-control {
  width: 100%;
  min-height: 46px;
  padding: 11px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--duration-fast) var(--ease-spring), box-shadow var(--duration-fast) var(--ease-spring);
}

.form-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-subtle);
}

.form-control::placeholder {
  color: var(--text-tertiary);
}

/* Accessibility Focus Outline */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--max-content-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(16px, 3vw, 24px);
  padding-right: clamp(16px, 3vw, 24px);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}