/* Shared Styles for Gainz Pro Landing Pages */
/* Note: Core tokens are defined in styles/tokens.css */
/* This file provides legacy aliases and shared component styles */

:root[data-theme='dark'] {
  /* Legacy aliases for backward compatibility */
  --primary: var(--color-primary);
  --primary-light: var(--color-primary-light);
  --primary-dark: var(--color-primary-dark);
}

:root[data-theme='light'] {
  /* Legacy aliases for backward compatibility */
  --primary: var(--color-primary);
  --primary-light: var(--color-primary-light);
  --primary-dark: var(--color-primary-dark);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  height: 100%;
  scroll-behavior: auto !important; /* Required for Lenis */
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: var(--leading-normal);
  -webkit-font-smoothing: antialiased;
  min-height: 100%;
  margin: 0;
  padding: 0;
}

/* Accessibility Skip Link */
.skip-link {
  position: absolute;
  top: -9999px;
  left: -9999px;
  background: var(--surface);
  color: var(--color-primary);
  padding: var(--space-3) var(--space-5);
  z-index: 10001; /* Higher than header */
  text-decoration: none;
  font-weight: var(--font-bold);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  border: 2px solid var(--color-primary);
  border-top: none;
  box-shadow: var(--shadow-lg);
  transition: top var(--transition-base);
}

.skip-link:focus {
  top: 0;
  left: var(--space-5);
  outline: none;
}

/* --- Header & Navigation --- */
.header {
  height: var(--header-height);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  transition: all var(--transition-slow);
}

.header-content {
  width: 100%;
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Logo */
.logo-link {
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: var(--font-extrabold);
  font-size: var(--text-xl);
  color: var(--text-primary);
  letter-spacing: var(--tracking-tight);
  transition: transform var(--transition-base);
}

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

.logo-link svg {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

/* Nav Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-links a {
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--text-secondary);
  transition: all var(--transition-base);
  position: relative;
}

.nav-links a:hover,
.nav-links a[aria-current='page'] {
  color: var(--text-primary);
}

/* Active Indicator / Hover Glow */
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s ease;
  border-radius: 2px;
}

.nav-links a:hover::after,
.nav-links a[aria-current='page']::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* Theme Toggle */
.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  margin-left: 8px;
  position: relative; /* Required for absolute-positioned SVG icons */
  overflow: hidden; /* Hide any text overflow from SVGs */
  flex-shrink: 0; /* Prevent shrinking in flex layouts */
}

.theme-toggle:hover {
  background: var(--surface);
  color: var(--primary);
  border-color: var(--primary);
  transform: rotate(15deg);
}

.theme-icon {
  position: absolute;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  opacity: 0;
  transform: scale(0.5) rotate(90deg);
}

/* Show correct icon based on theme logic (handled by JS toggling classes usually, or simple CSS if we restructure)
   Current JS likely toggles opacity/visibility. Let's keep it robust.
   Assuming JS toggles 'hidden' class or similar.
   Wait, previous JS used simple swapping. Let's rely on standard 'theme-icon' class behavior from previous files but refined.
*/
/* Actually, let's strictly use the existing SVG logic but cleaner CSS */
html[data-theme='light'] .sun-icon {
  opacity: 1;
  transform: scale(1) rotate(0);
}
html[data-theme='light'] .moon-icon {
  opacity: 0;
  transform: scale(0.5) rotate(-90deg);
}
html[data-theme='light'] .auto-icon {
  opacity: 0;
  transform: scale(0.5) rotate(-90deg);
} /* If manual override */

html[data-theme='dark'] .sun-icon {
  opacity: 0;
  transform: scale(0.5) rotate(90deg);
}
html[data-theme='dark'] .moon-icon {
  opacity: 1;
  transform: scale(1) rotate(0);
}

/* Mobile Menu Button (legacy) */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: 8px;
}

/* Standard Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary, #f5f5f5);
}

.logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

.logo-text {
  font-family: 'Outfit', sans-serif;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

/* Standard Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--text-primary, #f5f5f5);
  border-radius: 2px;
  transition: all 0.3s;
}

/* Mobile Nav Overlay */
.mobile-nav {
  position: fixed;
  inset: 0;
  background: rgba(5, 5, 5, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 99;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}

.mobile-nav.active {
  opacity: 1;
  pointer-events: all;
}

.mobile-nav a {
  font-family: 'Outfit', sans-serif;
  font-size: 32px;
  font-weight: 700;
  color: var(--text-primary, #f5f5f5);
  text-decoration: none;
  transition: color 0.2s;
}

.mobile-nav a:hover,
.mobile-nav a.active {
  color: var(--color-primary, #4ade80);
}

@media (max-width: 768px) {
  .nav-links {
    display: none !important;
  }
  .mobile-menu-btn,
  .hamburger-btn,
  .hamburger {
    display: flex !important;
  }
}

/* Footer (Basic shared) */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 60px 20px;
  text-align: center;
  margin-top: auto;
}

.footer p {
  color: var(--text-tertiary);
  font-size: 14px;
}

/* Utilities */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px;
}

.section-title {
  font-size: 32px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}