/* ============================================
   RANK BOOSTER — Global Base Styles
   ============================================ */

/* ── Reset ── */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-normal);
  color: var(--color-gray-600);
  background-color: var(--color-white);
  overflow-x: hidden;
}

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

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

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

ul, ol {
  list-style: none;
}

button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
}

button {
  cursor: pointer;
  background: none;
}

/* ── Typography ── */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-gray-900);
  line-height: var(--line-height-tight);
  font-weight: var(--font-weight-bold);
}

h1 {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-extra);
  letter-spacing: -0.025em;
}

h2 {
  font-size: var(--font-size-3xl);
  letter-spacing: -0.02em;
}

h3 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semi);
}

h4 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semi);
}

p {
  margin-bottom: var(--space-md);
}

p:last-child {
  margin-bottom: 0;
}

strong {
  font-weight: var(--font-weight-semi);
}

/* ── Layout ── */
.rb-container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.rb-container--wide {
  max-width: var(--container-wide);
}

.rb-container--narrow {
  max-width: var(--container-narrow);
}

.rb-section {
  padding: var(--space-4xl) 0;
}

.rb-section--sm {
  padding: var(--space-2xl) 0;
}

.rb-section--lg {
  padding: var(--space-5xl) 0;
}

/* ── Buttons ── */
.rb-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.875rem 2rem;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semi);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  white-space: nowrap;
  text-decoration: none;
}

.rb-btn:hover {
  transform: translateY(-2px);
}

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

.rb-btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-btn);
}

.rb-btn--primary:hover {
  background: var(--color-primary-dark);
  color: var(--color-white);
  box-shadow: 0 6px 20px rgba(var(--color-primary-rgb), 0.4);
}

.rb-btn--secondary {
  background: var(--color-white);
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.rb-btn--secondary:hover {
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
}

.rb-btn--outline {
  background: transparent;
  color: var(--color-white);
  border: 2px solid var(--color-white);
}

.rb-btn--outline:hover {
  background: var(--color-white);
  color: var(--color-primary);
}

.rb-btn--outline-blue {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.rb-btn--outline-blue:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

.rb-btn--sm {
  padding: 0.625rem 1.25rem;
  font-size: var(--font-size-xs);
}

.rb-btn--lg {
  padding: 1rem 2.5rem;
  font-size: var(--font-size-base);
}

/* ── Cards ── */
.rb-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--space-2xl);
  transition: all var(--transition-smooth);
}

.rb-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.rb-card--flat {
  box-shadow: none;
  border: 1px solid var(--color-gray-200);
}

.rb-card--flat:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-glass);
}

/* ── Badge / Pill ── */
.rb-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1.25rem;
  background: var(--color-primary);
  color: var(--color-white);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semi);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  text-decoration: none;
}

.rb-pill:hover {
  background: var(--color-primary-dark);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-btn);
}

/* ── Section Headers ── */
.rb-section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.rb-section-header__label {
  display: inline-block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semi);
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-sm);
}

.rb-section-header__title {
  margin-bottom: var(--space-md);
}

.rb-section-header__subtitle {
  max-width: 700px;
  margin: 0 auto;
  color: var(--color-gray-500);
  font-size: var(--font-size-md);
  line-height: var(--line-height-relaxed);
}

/* On dark backgrounds */
.rb-section--dark .rb-section-header__title,
.rb-section--dark h1,
.rb-section--dark h2,
.rb-section--dark h3 {
  color: var(--color-white);
}

.rb-section--dark .rb-section-header__subtitle,
.rb-section--dark p {
  color: rgba(255, 255, 255, 0.8);
}

.rb-section--dark .rb-section-header__label {
  color: rgba(255, 255, 255, 0.6);
}

/* ── Grid helpers ── */
.rb-grid {
  display: grid;
  gap: var(--space-xl);
}

.rb-grid--2 { grid-template-columns: repeat(2, 1fr); }
.rb-grid--3 { grid-template-columns: repeat(3, 1fr); }
.rb-grid--4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
  .rb-grid--3, .rb-grid--4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .rb-grid--2, .rb-grid--3, .rb-grid--4 {
    grid-template-columns: 1fr;
  }
}

/* ── Scroll Animations ── */
.rb-animate {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.rb-animate.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.rb-animate--delay-1 { transition-delay: 100ms; }
.rb-animate--delay-2 { transition-delay: 200ms; }
.rb-animate--delay-3 { transition-delay: 300ms; }
.rb-animate--delay-4 { transition-delay: 400ms; }

/* ── Checkmark List ── */
.rb-check-list {
  list-style: none;
}

.rb-check-list li {
  position: relative;
  padding-left: 1.75rem;
  margin-bottom: var(--space-sm);
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
}

.rb-check-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.2em;
  width: 18px;
  height: 18px;
  background: var(--color-success);
  border-radius: 50%;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='white'%3E%3Cpath fill-rule='evenodd' d='M16.707 5.293a1 1 0 010 1.414l-8 8a1 1 0 01-1.414 0l-4-4a1 1 0 011.414-1.414L8 12.586l7.293-7.293a1 1 0 011.414 0z'/%3E%3C/svg%3E");
  background-size: 12px;
  background-repeat: no-repeat;
  background-position: center;
}

/* ── Form elements ── */
.rb-input {
  width: 100%;
  padding: 0.875rem 1.25rem;
  background: var(--color-gray-100);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  color: var(--color-gray-900);
  transition: all var(--transition-fast);
}

.rb-input:focus {
  border-color: var(--color-primary);
  background: var(--color-white);
  box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.1);
}

.rb-input::placeholder {
  color: var(--color-gray-400);
}

textarea.rb-input {
  resize: vertical;
  min-height: 120px;
}

select.rb-input {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M6 8L1 3h10z' fill='%2364748B'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

/* ── Utility classes ── */
.text-center { text-align: center; }
.text-white { color: var(--color-white); }
.text-primary { color: var(--color-primary); }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-md); }
.mb-2 { margin-bottom: var(--space-xl); }
.mb-3 { margin-bottom: var(--space-2xl); }
.mt-2 { margin-top: var(--space-xl); }
.mt-3 { margin-top: var(--space-2xl); }

/* ── WordPress defaults ── */
.wp-block-image { margin: var(--space-xl) 0; }
.aligncenter { margin: 0 auto; text-align: center; }
.alignleft { float: left; margin-right: var(--space-xl); }
.alignright { float: right; margin-left: var(--space-xl); }
.screen-reader-text {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(1px, 1px, 1px, 1px);
  clip-path: inset(50%);
}