/* PlayerXChange - Modern CSS Architecture */

:root {
  /* Colors - Dark Theme (Default) */
  --color-bg: #040b18;
  --color-surface: #0c152d;
  --color-surface-alt: #111c39;
  --color-text: #f5f7ff;
  --color-muted: #93a2c6;
  --color-primary: #1f6bff;
  --color-accent: #11d7b1;
  --color-highlight: #ffb951;
  --color-field: #13244b;
  --color-dark: #020610;
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-section: clamp(3.5rem, 6vw, 5.75rem);
  
  /* Typography */
  --font-display: 'Inter', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --text-base: 1rem;
  --text-sm: 0.875rem;
  --text-xs: 0.75rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 2rem;
  --text-4xl: clamp(2.6rem, 5vw, 3.9rem);
  
  /* Borders & Radius */
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 20px 25px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 25px 50px rgba(0, 0, 0, 0.25);
  
  /* Transitions */
  --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #1f6bff, #11d7b1);
  --gradient-surface: linear-gradient(155deg, rgba(12, 21, 45, 0.95), rgba(19, 36, 75, 0.75));
  --gradient-sport: linear-gradient(180deg, rgba(31, 107, 255, 0.1) 0%, rgba(17, 215, 177, 0.1) 100%);
  
  /* Sports-themed patterns */
  --pattern-field: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(31, 107, 255, 0.03) 2px,
    rgba(31, 107, 255, 0.03) 4px
  );
  --pattern-grid: 
    linear-gradient(rgba(31, 107, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(31, 107, 255, 0.05) 1px, transparent 1px);
  
  /* Container */
  --max-width: 1200px;
}

[data-theme="light"] {
  --color-bg: #f5f7ff;
  --color-surface: #ffffff;
  --color-surface-alt: #ecf1ff;
  --color-text: #041128;
  --color-muted: #5a6789;
  --color-primary: #1f4acc;
  --color-accent: #0ea98a;
  --color-highlight: #b85c00;
  --color-field: #dbe5ff;
  --gradient-surface: linear-gradient(150deg, rgba(232, 238, 255, 0.95), rgba(210, 222, 255, 0.82));
}

/* Base Styles */
* {
  box-sizing: border-box;
}

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  background-image: var(--pattern-field);
  background-size: 100% 40px;
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  transition: background-color var(--transition), color var(--transition);
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: var(--pattern-grid);
  background-size: 60px 60px;
  opacity: 0.3;
  pointer-events: none;
  z-index: 0;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.05em;
  color: var(--color-text);
  text-transform: uppercase;
  position: relative;
}

h1::after, h2::after {
  content: '';
  position: absolute;
  bottom: -0.5rem;
  left: 0;
  width: 60px;
  height: 4px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }

p {
  color: var(--color-muted);
  margin-top: var(--space-md);
}

/* Layout */
.container {
  width: min(100%, var(--max-width));
  margin-inline: auto;
  padding-inline: var(--space-lg);
}

main {
  padding-block: var(--space-3xl) var(--space-2xl);
}

section + section {
  margin-top: var(--space-section);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(10, 15, 30, 0.9);
  backdrop-filter: blur(14px);
  border-bottom: 2px solid rgba(255, 255, 255, 0.06);
  border-top: 3px solid var(--color-primary);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

[data-theme="light"] .site-header {
  background: rgba(255, 255, 255, 0.9);
  border-color: rgba(10, 15, 30, 0.08);
}

.navbar {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  padding: var(--space-md) 0;
  min-height: 76px;
}

.navbar-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 700;
  font-size: var(--text-lg);
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: 0.05em;
}

.brand-logo {
  width: 44px;
  height: 44px;
}

.brand-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-left: auto;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  margin-left: var(--space-lg);
}

.nav-link {
  font-weight: 600;
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text);
  transition: color var(--transition);
  position: relative;
  padding: var(--space-xs) 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
}

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

.nav-toggle {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.12);
  display: none;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
  background: transparent;
  cursor: pointer;
  transition: background var(--transition);
}

.nav-toggle:hover {
  background: var(--color-surface-alt);
}

@media (max-width: 991px) {
  .nav-toggle {
    display: flex;
  }
  
  .primary-nav {
    position: absolute;
    top: calc(100% + 0.75rem);
    right: 0;
    left: auto;
    width: min(320px, calc(100vw - 3rem));
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-md);
    padding: var(--space-xl);
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    transform: translateY(-18px);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition), transform var(--transition);
  }
  
  .primary-nav[data-open="true"] {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm) var(--space-xl);
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: var(--text-base);
  letter-spacing: 0.01em;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: 0 18px 45px rgba(11, 95, 255, 0.35);
  position: relative;
  overflow: hidden;
  border: 2px solid transparent;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

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

.btn-primary:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 24px 58px rgba(11, 95, 255, 0.4);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-secondary {
  background: rgba(19, 36, 75, 0.7);
  border-color: rgba(255, 255, 255, 0.18);
  color: var(--color-text);
}

.btn-secondary:hover {
  background: rgba(11, 95, 255, 0.12);
}

.btn-ghost {
  background: transparent;
  color: var(--color-muted);
}

.btn-ghost:hover {
  color: var(--color-text);
}

/* Cards */
.card {
  background: var(--gradient-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  border: 2px solid rgba(255, 255, 255, 0.08);
  border-top: 3px solid var(--color-primary);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-slow), box-shadow var(--transition-slow), border-color var(--transition);
  position: relative;
  overflow: hidden;
}

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

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(31, 107, 255, 0.3);
}

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

[data-theme="light"] .card {
  border-color: rgba(4, 17, 40, 0.08);
}

/* Hero Section */
.hero {
  position: relative;
  padding-block: clamp(6rem, 14vh, 8rem) clamp(5rem, 12vh, 9rem);
  min-height: calc(100vh - 5rem);
  overflow: hidden;
  background-image: 
    linear-gradient(90deg, rgba(31, 107, 255, 0.05) 1px, transparent 1px),
    linear-gradient(rgba(31, 107, 255, 0.05) 1px, transparent 1px);
  background-size: 80px 80px;
  background-position: center;
}

.hero::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(31, 107, 255, 0.2), transparent);
  transform: translateY(-50%);
  pointer-events: none;
}

.hero-inner {
  display: grid;
  gap: clamp(2rem, 6vw, 4rem);
  align-items: center;
}

@media (min-width: 992px) {
  .hero-inner {
    grid-template-columns: 1.05fr 0.95fr;
  }
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 560px;
}

.hero h1 {
  text-transform: uppercase;
  letter-spacing: 0.1em;
  max-width: 18ch;
}

.hero p {
  font-size: var(--text-lg);
  margin-top: var(--space-lg);
}

.hero-actions {
  margin-top: var(--space-2xl);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.5rem 1.2rem;
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  background: var(--gradient-primary);
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 12px rgba(31, 107, 255, 0.3);
  position: relative;
  overflow: hidden;
}

.badge::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transform: rotate(45deg);
  animation: shine 3s infinite;
}

@keyframes shine {
  0%, 100% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
  50% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

/* Trust Strip */
.trust-strip {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
  align-items: center;
  margin-top: var(--space-2xl);
}

.trust-chip {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  background: var(--gradient-surface);
  border: 2px solid rgba(255, 255, 255, 0.18);
  border-left: 3px solid var(--color-primary);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition), border-color var(--transition);
  position: relative;
}

.trust-chip:hover {
  transform: translateX(4px);
  border-color: rgba(31, 107, 255, 0.4);
}

/* Section Title */
.section-title {
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  position: relative;
  display: inline-block;
  padding-bottom: var(--space-md);
  position: relative;
  padding-bottom: var(--space-sm);
}

.section-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 72px;
  height: 4px;
  border-radius: var(--radius-full);
  background: var(--gradient-primary);
}

/* Feature Grid */
.feature-grid {
  display: grid;
  gap: var(--space-lg);
  margin-top: var(--space-2xl);
}

@media (min-width: 768px) {
  .feature-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Stats */
.stat-row {
  display: grid;
  gap: var(--space-md);
  margin-top: var(--space-2xl);
}

@media (min-width: 768px) {
  .stat-row {
    grid-template-columns: repeat(4, 1fr);
  }
}

.stat-card {
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  background: var(--gradient-surface);
  border: 2px solid rgba(255, 255, 255, 0.12);
  border-top: 4px solid var(--color-primary);
  text-align: center;
  transition: transform var(--transition-slow), box-shadow var(--transition-slow), border-color var(--transition);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-slow);
}

.stat-card:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: var(--shadow-xl);
  border-color: rgba(31, 107, 255, 0.4);
}

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

.stat-card strong {
  font-size: var(--text-3xl);
  font-weight: 700;
  display: block;
  color: var(--color-highlight);
  text-shadow: 0 2px 8px rgba(255, 185, 81, 0.3);
  letter-spacing: 0.05em;
}

.stat-card span {
  margin-top: var(--space-xs);
  display: block;
  font-size: var(--text-sm);
  color: var(--color-muted);
}

/* Testimonial */
.testimonial {
  margin-top: var(--space-2xl);
  padding: var(--space-2xl);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(15, 21, 42, 0.85), rgba(11, 95, 255, 0.35));
  border: 2px solid rgba(31, 107, 255, 0.2);
  border-left: 4px solid var(--color-primary);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.testimonial::before {
  content: '"';
  position: absolute;
  top: -20px;
  left: 20px;
  font-size: 120px;
  font-family: serif;
  color: rgba(31, 107, 255, 0.1);
  line-height: 1;
}
  transition: transform var(--transition-slow), box-shadow var(--transition-slow);
}

.testimonial:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.testimonial blockquote {
  font-size: var(--text-lg);
  font-weight: 500;
  line-height: 1.5;
}

.testimonial cite {
  color: var(--color-muted);
  font-style: normal;
  margin-top: var(--space-md);
  display: block;
}

/* Page Hero */
.page-hero {
  padding-block: clamp(4.75rem, 8vw, 5.75rem) clamp(3.75rem, 7vw, 5rem);
  text-align: center;
  border-radius: var(--radius-lg);
  background: var(--gradient-surface);
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.page-hero h1 {
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.page-hero p {
  max-width: 55ch;
  margin-inline: auto;
  margin-top: var(--space-md);
}

/* Athlete Grid */
.athlete-grid {
  display: grid;
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

@media (min-width: 640px) {
  .athlete-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .athlete-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.athlete-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.04);
  transition: transform var(--transition-slow), box-shadow var(--transition-slow);
}

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

.athlete-portrait {
  width: 100%;
  height: auto;
  display: block;
  max-height: 240px;
}

.athlete-card-content {
  padding: var(--space-lg);
}

.athlete-card h3 {
  font-size: var(--text-xl);
}

.athlete-card p {
  color: var(--color-muted);
  margin-top: var(--space-sm);
  font-size: var(--text-sm);
}

/* Filter Bar */
.filter-bar {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-block: var(--space-xl);
}

@media (min-width: 768px) {
  .filter-bar {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.search-input {
  flex: 1;
  display: flex;
  align-items: center;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-full);
  background: var(--color-surface);
  border: 1px solid rgba(255, 255, 255, 0.08);
  gap: var(--space-sm);
}

.search-input input {
  flex: 1;
  background: transparent;
  border: none;
  color: inherit;
  outline: none;
}

.chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.chip {
  padding: 0.45rem 1rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: transparent;
  cursor: pointer;
  font-size: var(--text-sm);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: all var(--transition);
}

.chip[aria-pressed="true"] {
  background: var(--gradient-primary);
  border-color: var(--color-primary);
  color: #fff;
}

/* Detail Hero */
.detail-hero {
  display: grid;
  gap: var(--space-xl);
  margin-top: var(--space-xl);
}

@media (min-width: 1024px) {
  .detail-hero {
    grid-template-columns: 1.1fr 1fr;
    align-items: center;
  }
}

.hero-figure {
  width: 100%;
  max-width: 640px;
}

.hero-portrait {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.meta-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-full);
  background: rgba(11, 95, 255, 0.18);
  font-weight: 600;
  font-size: var(--text-sm);
}

/* Tabs */
.tab-list {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-top: var(--space-2xl);
}

.tab-button {
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: transparent;
  cursor: pointer;
  font-weight: 600;
  transition: all var(--transition);
}

.tab-button[aria-selected="true"] {
  background: rgba(11, 95, 255, 0.2);
  border-color: var(--color-primary);
}

.tab-panel {
  margin-top: var(--space-xl);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  border: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: var(--shadow-md);
}

/* Timeline */
.timeline {
  display: grid;
  gap: var(--space-lg);
  margin-top: var(--space-2xl);
}

.timeline-step {
  display: grid;
  gap: var(--space-sm);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.timeline-step span {
  font-size: var(--text-sm);
  color: var(--color-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Forms */
.form-card {
  max-width: 640px;
  margin-inline: auto;
}

.form-group {
  display: grid;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

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

.input-control {
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: var(--color-surface);
  color: inherit;
  transition: border var(--transition), box-shadow var(--transition);
  width: 100%;
}

.input-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(11, 95, 255, 0.2);
}

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

.form-help {
  color: #ff889d;
  font-size: var(--text-sm);
}

[aria-invalid="true"] {
  border-color: #ff5572 !important;
}

/* Accordion */
.accordion {
  margin-top: var(--space-2xl);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.accordion-item + .accordion-item {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.accordion-button {
  width: 100%;
  text-align: left;
  padding: var(--space-md) var(--space-lg);
  font-weight: 600;
  background: var(--color-surface);
  border: none;
  cursor: pointer;
  transition: background var(--transition);
}

.accordion-button[aria-expanded="true"] {
  background: var(--color-surface-alt);
}

.accordion-panel {
  padding: 0 var(--space-lg) var(--space-lg);
  color: var(--color-muted);
  display: none;
}

.accordion-panel[data-open="true"] {
  display: block;
}

/* Footer */
.footer {
  position: relative;
  padding-block: var(--space-2xl);
  color: var(--color-muted);
  font-size: var(--text-sm);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-top {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

@media (min-width: 992px) {
  .footer-top {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer-links a {
  color: inherit;
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--color-text);
}

.social-links {
  display: flex;
  gap: var(--space-md);
}

.social-links a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.05);
  transition: background var(--transition);
}

.social-links a:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* Toast */
.toast {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-lg);
  min-width: 220px;
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
}

.toast[data-open="true"] {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* Utilities */
.empty-state {
  text-align: center;
  padding: var(--space-3xl) var(--space-lg);
  color: var(--color-muted);
}

.error-hero {
  padding-block: var(--space-3xl) var(--space-2xl);
  text-align: center;
}

.error-hero h1 {
  font-size: clamp(3rem, 8vw, 5rem);
}

.error-hero p {
  color: var(--color-muted);
  margin-top: var(--space-lg);
}

/* Animations */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.floating {
  animation: float 12s ease-in-out infinite;
}

.floating-slow {
  animation: float 16s ease-in-out infinite;
}

.floating-medium {
  animation: float 12s ease-in-out infinite;
}

/* Scroll Animations - Content visible by default */
[data-observe] {
  opacity: 1;
  transform: translate3d(0, 0, 0);
  transition: transform 800ms cubic-bezier(0.4, 0, 0.2, 1), opacity 800ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Animations are optional enhancements - content is always visible */

/* Skip Link */
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-md);
  background: var(--color-primary);
  color: #fff;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  transition: top var(--transition);
  z-index: 10000;
}

.skip-link:focus {
  top: var(--space-md);
}

/* Athlete Stats */
[data-athlete-stats] {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  list-style: none;
  padding: 0;
}

[data-athlete-stats] li {
  background: rgba(255, 255, 255, 0.04);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  font-size: var(--text-sm);
}

[data-athlete-stats] li strong {
  font-size: var(--text-base);
  color: var(--color-text);
}

[data-theme="light"] [data-athlete-stats] li {
  background: rgba(10, 15, 30, 0.08);
}

[data-theme="light"] [data-athlete-stats] li strong {
  color: var(--color-dark);
}

/* Tab Functionality */
.tab-button {
  cursor: pointer;
}

.tab-panel[hidden] {
  display: none;
}

.tab-panel:not([hidden]) {
  display: block;
}

/* Loading State */
[data-loading] {
  display: block;
}

[data-loading] + [data-athlete-detail] {
  display: none;
}

[data-athlete-detail]:not(.hidden) {
  display: block;
}

[data-loading].hidden {
  display: none;
}

/* Form Success */
[data-form-success] {
  background: var(--gradient-surface);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

[data-form-success] strong {
  color: var(--color-accent);
  display: block;
  margin-bottom: var(--space-sm);
}

/* Lists */
ul:not([role="list"]) {
  list-style: disc;
  padding-left: var(--space-xl);
}

ul:not([role="list"]) li {
  margin-top: var(--space-sm);
  color: var(--color-muted);
}

/* Flex Utilities */
.flex {
  display: flex;
}

.flex-wrap {
  flex-wrap: wrap;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  
  [data-observe] {
    opacity: 1 !important;
    transform: none !important;
  }
  
  .floating {
    animation: none !important;
  }
}