/* ========================================
   Enterprise Join Page CSS - Refined Version
   Version: 3.1
   Design Philosophy: Sophisticated Minimalism
   ======================================== */

/* CSS Variables - Refined Color Palette */
:root {
    /* Colors - More subtle, professional */
    --primary: #10B981;
    --primary-dark: #059669;
    --primary-light: #34D399;
    --primary-alpha-10: rgba(16, 185, 129, 0.1);
    --primary-alpha-20: rgba(16, 185, 129, 0.2);
    
    --text-primary: #F9FAFB;
    --text-secondary: #D1D5DB;
    --text-tertiary: #9CA3AF;
    
    --surface-base: #111827;
    --surface-elevated: #1F2937;
    --surface-overlay: #374151;
    
    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-default: rgba(255, 255, 255, 0.12);
    --border-strong: rgba(255, 255, 255, 0.16);
    
    --error: #EF4444;
    --error-light: #F87171;
    --warning: #F59E0B;
    --success: #10B981;
    
    /* Spacing - Tighter, more compact */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 12px;
    --spacing-lg: 20px;
    --spacing-xl: 28px;
    --spacing-2xl: 40px;
    
    /* Typography - Refined */
    --font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 11px;
    --font-size-sm: 13px;
    --font-size-base: 15px;
    --font-size-lg: 17px;
    --font-size-xl: 20px;
    --font-size-2xl: 28px;
    
    /* Animations - Smoother */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Border radius - More subtle */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 10px;
    --radius-xl: 12px;
    --radius-full: 9999px;
}

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

html {
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    font-family: var(--font-family);
    background: #000;
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    font-weight: 400;
    word-break: keep-all;
    word-wrap: break-word;
}

/* Initial Loading - Minimal */
.initial-loading {
    position: fixed;
    inset: 0;
    background: #000;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity var(--transition-base);
}

.initial-loading.fade-out {
    opacity: 0;
    pointer-events: none;
}

.loading-content {
    text-align: center;
}

.loading-logo {
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
}

.loading-logo img {
    height: 32px;
    width: auto;
}

.loading-bar {
    width: 200px;
    height: 2px;
    background: var(--surface-elevated);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin: 0 auto var(--spacing-md);
}

.loading-bar-fill {
    height: 100%;
    background: var(--primary);
    animation: loading-progress 1.5s ease-in-out infinite;
}

@keyframes loading-progress {
    0% { width: 0%; }
    50% { width: 70%; }
    100% { width: 100%; }
}

.loading-text {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
    font-weight: 500;
}

/* Background - Subtle gradient */
.stars-bg {
    position: fixed;
    inset: 0;
    z-index: -1;
    background: 
        radial-gradient(ellipse at top, #0F172A 0%, #000 50%),
        radial-gradient(ellipse at bottom, #0A0F1C 0%, #000 50%);
}

.stars {
    opacity: 0.3;
}

.star {
    position: absolute;
    background: white;
    border-radius: 50%;
    animation: twinkle 4s infinite ease-in-out;
}

@keyframes twinkle {
    0%, 100% { opacity: 0.2; }
    50% { opacity: 0.6; }
}

/* Container - Narrower, more focused */
.container {
    max-width: 480px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.join-card {
    background: rgba(17, 24, 39, 0.5);
    backdrop-filter: blur(24px) saturate(180%);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl) var(--spacing-xl);
    width: 100%;
    box-shadow: 
        0 0 0 1px rgba(255, 255, 255, 0.02),
        0 20px 25px -5px rgba(0, 0, 0, 0.1),
        0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* Header - Compact */
.join-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.logo-link {
    text-decoration: none;
    opacity: 0.9;
    transition: opacity var(--transition-base);
}

.logo-link:hover {
    opacity: 1;
}

.logo {
    height: 24px;
    width: auto;
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--surface-elevated);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
}

.user-info .material-icons {
    font-size: 16px;
    color: var(--text-tertiary);
}

.user-text {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.user-label {
    display: none;
}

.user-name {
    font-weight: 500;
    color: var(--text-secondary);
}

/* Title Section - Refined */
.title-section {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.title {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    letter-spacing: -0.025em;
    color: var(--text-primary);
}

.subtitle {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    font-weight: 400;
    word-break: keep-all;
}

/* Progress Indicator - Minimal */
.step-progress {
    margin-bottom: var(--spacing-xl);
}

.step-track {
    height: 2px;
    background: var(--surface-elevated);
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-lg);
    overflow: hidden;
}

.step-fill {
    height: 100%;
    background: linear-gradient(to right, var(--primary), var(--primary-light));
    border-radius: var(--radius-full);
    width: 33.33%;
    transition: width var(--transition-base);
}

.step-items {
    display: flex;
    justify-content: space-between;
}

.step-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    opacity: 0.4;
    transition: opacity var(--transition-base);
    cursor: pointer;
    flex: 1;
}

.step-item.active {
    opacity: 1;
}

.step-item.completed {
    opacity: 0.7;
}

.step-dot {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--surface-elevated);
    border: 1.5px solid var(--border-default);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: all var(--transition-base);
}

.step-item.active .step-dot {
    background: var(--primary-alpha-10);
    border-color: var(--primary);
}

.step-item.completed .step-dot {
    background: var(--primary);
    border-color: var(--primary);
}

.step-number {
    font-weight: 500;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.step-item.active .step-number {
    color: var(--primary);
}

.step-check {
    display: none;
    color: white;
    font-size: 16px;
}

.step-item.completed .step-number {
    display: none;
}

.step-item.completed .step-check {
    display: block;
}

.step-label {
    font-size: var(--font-size-xs);
    font-weight: 500;
    text-align: center;
    color: var(--text-tertiary);
}

.step-item.active .step-label {
    color: var(--text-secondary);
}

/* Form Steps */
.form-step {
    display: none;
}

.form-step.active {
    display: block;
    animation: step-enter 300ms ease-out;
}

@keyframes step-enter {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.step-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.step-description {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

/* Form Elements - Refined */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
}

.label-required {
    color: var(--error);
    font-size: var(--font-size-base);
}

.input-wrapper {
    position: relative;
}

.form-input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    padding-left: 44px;
    padding-right: 44px;
    background: var(--surface-elevated);
    border: 1.5px solid var(--border-default);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    color: var(--text-primary);
    transition: all var(--transition-base);
    font-family: inherit;
    font-weight: 400;
}

.form-input:hover {
    background: var(--surface-overlay);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--surface-overlay);
    box-shadow: 0 0 0 3px var(--primary-alpha-20);
}

.form-input.error {
    border-color: var(--error);
}

.form-input.error:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2);
}

.input-icon {
    position: absolute;
    left: 14px;
    top: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
    pointer-events: none;
}

.input-icon .material-icons {
    font-size: 20px;
    line-height: 1;
    display: block;
}

.input-status {
    position: absolute;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
}

.status-icon {
    display: none;
    font-family: 'Material Icons';
    font-size: 18px;
}

.status-icon.loading::after {
    content: '';
    display: block;
    width: 14px;
    height: 14px;
    border: 2px solid var(--primary);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.status-icon.success::after {
    content: 'check_circle';
    color: var(--success);
}

.status-icon.error::after {
    content: 'error';
    color: var(--error);
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.field-help {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    margin-top: var(--spacing-xs);
}

.field-error {
    font-size: var(--font-size-sm);
    color: var(--error);
    margin-top: var(--spacing-xs);
    display: none;
}

.field-error.show {
    display: block;
}

/* Minecraft Preview - Compact */
.minecraft-preview {
    background: var(--surface-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-top: var(--spacing-md);
    display: none; /* Initially hidden */
}

.minecraft-preview.show {
    display: block;
}

.preview-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.minecraft-skin {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    image-rendering: pixelated;
    border: 1px solid var(--border-default);
}

.minecraft-info {
    flex: 1;
}

.minecraft-name {
    font-size: var(--font-size-base);
    font-weight: 600;
    margin-bottom: 2px;
}

.minecraft-uuid {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    font-family: 'SF Mono', Monaco, monospace;
}

.minecraft-badges {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xs);
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 2px var(--spacing-sm);
    background: var(--primary-alpha-10);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--primary);
}

.badge .material-icons {
    font-size: 12px;
}

/* Purpose Grid - Compact Cards */
.purpose-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.purpose-card {
    position: relative;
    cursor: pointer;
}

.purpose-input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.purpose-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--spacing-lg) var(--spacing-md);
    background: var(--surface-elevated);
    border: 1.5px solid var(--border-default);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    min-height: 160px;
    justify-content: center;
}

.purpose-card:hover .purpose-content {
    border-color: var(--border-strong);
    transform: translateY(-1px);
}

.purpose-input:checked + .purpose-content {
    background: var(--primary-alpha-10);
    border-color: var(--primary);
}

.purpose-icon {
    width: 40px;
    height: 40px;
    background: var(--surface-overlay);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
    transition: all var(--transition-base);
}

.purpose-icon .material-icons {
    font-size: 24px;
    color: var(--text-tertiary);
}

.purpose-input:checked + .purpose-content .purpose-icon {
    background: var(--primary);
}

.purpose-input:checked + .purpose-content .purpose-icon .material-icons {
    color: white;
}

.purpose-title {
    font-weight: 600;
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-xs);
}

.purpose-desc {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    line-height: 1.4;
    word-break: keep-all;
}

.purpose-check {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    opacity: 0;
    transform: scale(0.8);
    transition: all var(--transition-base);
    color: var(--primary);
}

.purpose-check .material-icons {
    font-size: 20px;
}

.purpose-input:checked + .purpose-content .purpose-check {
    opacity: 1;
    transform: scale(1);
}

.step-note {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--surface-elevated);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
}

.step-note .material-icons {
    font-size: 16px;
}

/* Terms - Clean list */
.terms-actions {
    display: flex;
    justify-content: flex-end;
    margin-bottom: var(--spacing-md);
}

.btn-text {
    background: none;
    border: none;
    color: var(--primary);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
}

.btn-text:hover {
    background: var(--primary-alpha-10);
}

.btn-text .material-icons {
    font-size: 18px;
}

.terms-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.terms-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--surface-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
}

.terms-item:hover {
    border-color: var(--border-default);
}

.terms-item.checked {
    background: var(--primary-alpha-10);
    border-color: var(--primary);
}

.terms-checkbox {
    width: 18px;
    height: 18px;
    border: 1.5px solid var(--border-strong);
    border-radius: var(--radius-sm);
    position: relative;
    cursor: pointer;
    flex-shrink: 0;
    margin-top: 2px;
    transition: all var(--transition-base);
}

.terms-checkbox.checked {
    background: var(--primary);
    border-color: var(--primary);
}

.terms-checkbox.checked::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 11px;
    font-weight: bold;
}

.terms-content {
    flex: 1;
}

.terms-label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-bottom: 2px;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.terms-desc {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    line-height: 1.4;
    word-break: keep-all;
}

.view-detail-link {
    color: var(--primary);
    text-decoration: none;
    font-size: var(--font-size-xs);
    font-weight: 400;
    margin-left: auto;
    opacity: 0.8;
    transition: opacity var(--transition-base);
}

.view-detail-link:hover {
    opacity: 1;
}

/* Quick Registration - Refined */
.quick-registration {
    background: linear-gradient(135deg, var(--primary-alpha-10), transparent);
    border: 1px solid var(--primary-alpha-20);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.quick-reg-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.quick-reg-header .material-icons {
    color: var(--primary);
    font-size: 20px;
}

.quick-reg-header h3 {
    font-size: var(--font-size-base);
    font-weight: 600;
}

.quick-registration p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.minecraft-account-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    background: var(--surface-elevated);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
}

.mc-skin-small {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    image-rendering: pixelated;
}

.mc-account-info {
    flex: 1;
}

.mc-name {
    font-weight: 600;
    font-size: var(--font-size-sm);
}

.mc-uuid {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    font-family: monospace;
}

.btn-quick-register {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-quick-register:hover {
    background: var(--primary-dark);
}

.divider {
    text-align: center;
    margin: var(--spacing-lg) 0 var(--spacing-md);
    position: relative;
}

.divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--border-default);
}

.divider span {
    background: var(--surface-base);
    padding: 0 var(--spacing-md);
    position: relative;
    color: var(--text-tertiary);
    font-size: var(--font-size-xs);
}

/* Already Registered Message - Consistent with existing design */
.already-registered-message {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.08), transparent);
    border: 1px solid rgba(239, 68, 68, 0.15);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.message-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.message-header .material-icons {
    font-size: 20px;
}

.message-header h3 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.already-registered-message p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.5;
}

.already-registered-message .minecraft-account-card {
    margin-bottom: var(--spacing-md);
}

.mc-status {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--surface-overlay);
    border-radius: var(--radius-sm);
    font-weight: 500;
}

.info-message {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(249, 250, 251, 0.05);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--warning);
}

.info-message .material-icons {
    font-size: 18px;
    color: var(--warning);
    margin-top: 1px;
}

.info-message span:last-child {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    line-height: 1.4;
}

/* Buttons - Refined */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: inherit;
    position: relative;
    overflow: hidden;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--surface-elevated);
    color: var(--text-secondary);
    border: 1px solid var(--border-default);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--surface-overlay);
    color: var(--text-primary);
}

.btn .material-icons {
    font-size: 18px;
}

.btn-submit {
    min-width: 160px;
}

.btn-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: all var(--transition-base);
}

.btn-loading {
    position: absolute;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    opacity: 0;
    transform: translateY(20px);
}

.btn.loading .btn-content {
    opacity: 0;
    transform: translateY(-20px);
}

.btn.loading .btn-loading {
    opacity: 1;
    transform: translateY(0);
}

.spinner {
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.form-actions {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

/* Modal - Clean design */
.modal {
    position: fixed;
    inset: 0;
    display: none;
    z-index: 1000;
}

.modal.show {
    display: block;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
}

.modal-dialog {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    max-width: 520px;
    max-height: 85vh;
    display: flex;
    animation: modal-enter 200ms ease-out;
}

@keyframes modal-enter {
    from {
        opacity: 0;
        transform: translate(-50%, -48%) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
}

.modal-content {
    background: var(--surface-base);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-xl);
    width: 100%;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-subtle);
}

.modal-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.modal-close {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
    background: transparent;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base);
    color: var(--text-tertiary);
}

.modal-close:hover {
    background: var(--surface-elevated);
    color: var(--text-primary);
}

.modal-body {
    padding: var(--spacing-lg);
    overflow-y: auto;
    flex: 1;
}

.terms-detail-content {
    line-height: 1.6;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    white-space: pre-wrap;
    word-wrap: break-word;
    word-break: keep-all;
}

.terms-detail-content h1,
.terms-detail-content h2,
.terms-detail-content h3,
.terms-detail-content h4 {
    color: var(--text-primary);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.terms-detail-content p {
    margin-bottom: var(--spacing-md);
}

.terms-detail-content ul,
.terms-detail-content ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

.terms-detail-content li {
    margin-bottom: var(--spacing-sm);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-subtle);
}

/* Toast - Minimal */
.toast-container {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--surface-elevated);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    min-width: 280px;
    animation: toast-enter 200ms ease-out;
}

@keyframes toast-enter {
    from {
        opacity: 0;
        transform: translateY(-100%);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.toast.hide {
    animation: toast-exit 200ms ease-out forwards;
}

@keyframes toast-exit {
    to {
        opacity: 0;
        transform: translateY(-100%);
    }
}

.toast-icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.toast-icon .material-icons {
    font-size: 18px;
}

.toast.success .toast-icon {
    color: var(--success);
}

.toast.error .toast-icon {
    color: var(--error);
}

.toast.info .toast-icon {
    color: var(--primary);
}

.toast-message {
    flex: 1;
    font-size: var(--font-size-sm);
}

/* Success Screen - Elegant */
.success-screen {
    text-align: center;
    padding: var(--spacing-2xl) 0;
}

.success-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-lg);
    background: var(--primary-alpha-10);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: success-icon 600ms ease-out;
}

@keyframes success-icon {
    0% {
        transform: scale(0.8);
        opacity: 0;
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.success-icon .material-icons {
    font-size: 48px;
    color: var(--success);
}

.success-screen h1 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.success-message {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
}

.success-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.info-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    color: var(--text-tertiary);
    font-size: var(--font-size-sm);
}

.info-item .material-icons {
    font-size: 18px;
}

.success-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

/* Skeleton Loading - Refined */
.preview-skeleton,
.skeleton-term {
    animation: none;
}

.skeleton-avatar,
.skeleton-line,
.skeleton-checkbox {
    background: var(--surface-overlay);
    position: relative;
    overflow: hidden;
}

.skeleton-avatar::after,
.skeleton-line::after,
.skeleton-checkbox::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.05) 50%,
        transparent 100%
    );
    animation: shimmer 1.5s ease-in-out infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* Responsive - Mobile optimized */
@media (max-width: 640px) {
    .container {
        padding: var(--spacing-md);
    }
    
    .join-card {
        padding: var(--spacing-lg);
    }
    
    .title {
        font-size: var(--font-size-xl);
    }
    
    .purpose-grid {
        grid-template-columns: 1fr;
    }
    
    .step-label {
        display: none;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .toast-container {
        left: var(--spacing-md);
        right: var(--spacing-md);
    }
}

/* Focus styles - Subtle */
:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

button:focus-visible {
    outline-offset: 0;
}

/* Loading overlay - Clean */
.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    transition: opacity 200ms ease;
}

.loading-overlay.active {
    opacity: 1;
}

.loading-overlay .loading-content {
    text-align: center;
}

.loading-overlay .loading-spinner {
    width: 32px;
    height: 32px;
    border: 2px solid var(--primary-alpha-20);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto var(--spacing-md);
}

.loading-overlay p {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* Print styles */
@media print {
    .stars-bg,
    .form-actions,
    .modal,
    .toast-container {
        display: none !important;
    }
}

/* ========================================
   Link Mode Styles
   ======================================== */
.search-results {
    margin-top: 2rem;
}

.search-results h3 {
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.results-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.minecraft-result-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all 0.3s ease;
    cursor: pointer;
}

.minecraft-result-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.minecraft-result-card .mc-skin {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.minecraft-result-card .mc-info {
    flex: 1;
}

.minecraft-result-card .mc-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1rem;
}

.minecraft-result-card .mc-group {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-top: 0.25rem;
}

.minecraft-result-card .mc-last-seen {
    color: var(--text-tertiary);
    font-size: 0.75rem;
    margin-top: 0.25rem;
}

.select-account-btn {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: white;
    border: none;
    border-radius: 8px;
    padding: 0.5rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.select-account-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px var(--primary-alpha-20);
}

.no-results {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-secondary);
}

.no-results .material-icons {
    font-size: 3rem;
    color: var(--text-tertiary);
    margin-bottom: 1rem;
}

.no-results p {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.no-results small {
    color: var(--text-tertiary);
}

.selected-account {
    margin-top: 2rem;
}

.selected-account h3 {
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.selected-minecraft-card {
    background: var(--primary-alpha-10);
    border: 2px solid var(--primary-alpha-20);
    border-radius: 16px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.selected-minecraft-card .mc-skin-large {
    width: 64px;
    height: 64px;
    border-radius: 12px;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.selected-minecraft-card .mc-details {
    flex: 1;
}

.selected-minecraft-card .mc-name-large {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.selected-minecraft-card .mc-group-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.mc-group-badge.user { background: #4CAF50; color: white; }
.mc-group-badge.user2 { background: #2196F3; color: white; }
.mc-group-badge.user3 { background: #9C27B0; color: white; }
.mc-group-badge.mod { background: #FF9800; color: white; }
.mc-group-badge.admin { background: #F44336; color: white; }

.selected-minecraft-card .mc-uuid {
    font-family: 'Courier New', monospace;
    font-size: 0.75rem;
    color: var(--text-tertiary);
    margin-bottom: 0.25rem;
}

.selected-minecraft-card .mc-last-seen {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.change-selection-btn {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    padding: 0.5rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.change-selection-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
}

/* High contrast mode */
@media (prefers-contrast: high) {
    :root {
        --primary: #0F0;
        --error: #F00;
        --border-default: rgba(255, 255, 255, 0.5);
    }
}

/* ======================================== 
   Linked Accounts Display (Link Mode)
   ======================================== */

.existing-accounts-section {
    margin-bottom: var(--spacing-xl);
}

.existing-accounts-section h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.existing-accounts-section h3::before {
    content: '';
    width: 3px;
    height: 20px;
    background: var(--primary);
    border-radius: var(--radius-sm);
}

.linked-account-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-alpha-10), rgba(16, 185, 129, 0.05));
    border: 1px solid var(--primary-alpha-20);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    transition: all var(--animation-fast) ease;
}

.linked-account-card:hover {
    border-color: var(--primary);
    transform: translateY(-1px);
    box-shadow: 0 8px 25px -8px var(--primary-alpha-20);
}

.mc-skin-large {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    border: 2px solid var(--border-default);
    background: var(--surface-base);
}

.mc-details {
    flex: 1;
}

.mc-name-large {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.mc-uuid {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    font-family: 'Courier New', monospace;
    margin-bottom: var(--spacing-xs);
}

.mc-linked-date {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.mc-status-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: var(--primary-alpha-10);
    color: var(--primary);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.mc-status-badge .material-icons {
    font-size: 14px;
}

.link-additional-section {
    border-top: 1px solid var(--border-subtle);
    padding-top: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.link-additional-section h3 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.link-additional-section p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.5;
}

.search-results h4,
.selected-account h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

/* Responsive adjustments for linked accounts */
@media (max-width: 640px) {
    .linked-account-card {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-md);
    }
    
    .mc-details {
        width: 100%;
    }
    
    .mc-name-large {
        font-size: var(--font-size-base);
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}