/* CSS Reset and Base Styles */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

:root {
    /* Light Mode Variables (default) */
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary-color: #6b7280;
    --success-color: #059669;
    --error-color: #dc2626;
    --warning-color: #d97706;
    --background-color: #f8fafc;
    --surface-color: #ffffff;
    --border-color: #e5e7eb;
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --border-radius: 8px;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --font-weight-normal: 400;
    
    /* RGB values for alpha transparency */
    --primary-color-rgb: 37, 99, 235;
    --success-color-rgb: 5, 150, 105;
    --error-color-rgb: 220, 38, 38;
    --warning-color-rgb: 217, 119, 6;
}

/* Dark Mode Variables */
:root.dark-mode {
    --primary-color: #3b82f6;
    --primary-hover: #60a5fa;
    --secondary-color: #9ca3af;
    --success-color: #10b981;
    --error-color: #ef4444;
    --warning-color: #f59e0b;
    --background-color: #111827;
    --surface-color: #1f2937;
    --border-color: #374151;
    --text-primary: #f9fafb;
    --text-secondary: #d1d5db;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.3), 0 1px 2px 0 rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
    --font-weight-normal: 350;
    
    /* RGB values for dark mode */
    --primary-color-rgb: 59, 130, 246;
    --success-color-rgb: 16, 185, 129;
    --error-color-rgb: 239, 68, 68;
    --warning-color-rgb: 245, 158, 11;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background-color);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    font-weight: var(--font-weight-normal);
    transition: background-color 0.3s, color 0.3s;
}

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.main {
    flex: 1;
    padding: 2rem 0;
}

/* Header */
.header {
    background: var(--surface-color);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
}

.logo a {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
}

.nav {
    display: flex;
    gap: 1rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    transition: background-color 0.2s, color 0.2s;
}

.nav-link:hover {
    background-color: var(--background-color);
    color: var(--text-primary);
}

/* Theme Toggle Button */
.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.25rem;
    margin-left: 0.5rem;
    padding: 0.5rem;
    border-radius: 50%;
    transition: background-color 0.2s, transform 0.2s;
    line-height: 1;
}

.theme-toggle:hover {
    background-color: var(--background-color);
    transform: scale(1.1);
}

.theme-toggle:active {
    transform: scale(0.95);
}

/* Footer */
.footer {
    background: var(--surface-color);
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
    margin-top: auto;
}

.footer .container {
    text-align: center;
    color: var(--text-secondary);
}

.footer p {
    margin-bottom: 0.5rem;
}

.footer a {
    color: var(--primary-color);
    text-decoration: none;
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 3.5rem 0 2rem;
}

.hero h1 {
    font-size: 2.75rem;
    margin-bottom: 1.25rem;
    color: var(--text-primary);
    font-weight: 700;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.7;
}

/* Onboarding Panel */
.onboarding-panel {
    max-width: 800px;
    margin: 2rem auto 4rem;
    background: var(--surface-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: transform 0.3s, box-shadow 0.3s;
}

.onboarding-panel:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.onboarding-content {
    padding: 2.5rem;
}

.onboarding-content h2 {
    font-size: 1.8rem;
    margin-bottom: 1.25rem;
    color: var(--primary-color);
    text-align: center;
}

.onboarding-content p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    text-align: center;
    color: var(--text-secondary);
}

.onboarding-steps {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    margin-bottom: 2.5rem;
}

.onboarding-step {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    padding: 0.5rem;
    transition: transform 0.2s;
}

.onboarding-step:hover {
    transform: translateX(5px);
}

.step-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    font-weight: 700;
    font-size: 1.25rem;
}

.step-text {
    font-size: 1.1rem;
    color: var(--text-primary);
}

.onboarding-action {
    text-align: center;
}

.start-btn {
    padding: 0.9rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: transform 0.3s, box-shadow 0.3s, background-color 0.3s;
    border-radius: 2rem;
}

.start-btn:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 10px 20px rgba(var(--primary-color-rgb), 0.3);
}

/* Cards */
.card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: transform 0.2s, box-shadow 0.2s, background-color 0.3s, border-color 0.3s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.card h2 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.card p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.dashboard {
    padding: 1rem 0;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    background-color: var(--surface-color);
    color: var(--text-primary);
    transition: border-color 0.2s, box-shadow 0.2s, background-color 0.3s, color 0.3s;
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(var(--primary-color-rgb, 37, 99, 235), 0.2);
    animation: pulse 0.5s ease-out;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(var(--primary-color-rgb, 37, 99, 235), 0.4); }
    70% { box-shadow: 0 0 0 6px rgba(var(--primary-color-rgb, 37, 99, 235), 0); }
    100% { box-shadow: 0 0 0 0 rgba(var(--primary-color-rgb, 37, 99, 235), 0); }
}

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

.form-help {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.input-group {
    display: flex;
    gap: 0.5rem;
}

.input-group .form-input {
    flex: 1;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.2s, box-shadow 0.2s, color 0.2s;
    position: relative;
    overflow: hidden;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

.btn:active {
    transform: translateY(-1px);
}

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

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

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

.btn-secondary:hover {
    background-color: #4b5563;
}

.btn-link {
    background-color: transparent;
    color: var(--primary-color);
    padding: 0.5rem 1rem;
}

.btn-link:hover {
    background-color: var(--background-color);
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

/* Status and Progress */
.status-value {
    font-weight: 500;
}

.status-healthy {
    color: var(--success-color);
}

.status-unhealthy {
    color: var(--error-color);
}

.progress-bar {
    display: flex;
    justify-content: space-between;
    margin: 2rem 0;
    padding: 0 1rem;
}

.progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    flex: 1;
    position: relative;
}

.progress-step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 1.5rem;
    left: 70%;
    right: -30%;
    height: 2px;
    background-color: var(--border-color);
    z-index: -1;
}

.progress-step.completed:not(:last-child)::after {
    background-color: var(--success-color);
}

.step-number {
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--border-color);
    color: var(--text-secondary);
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.progress-step.active .step-number {
    background-color: var(--primary-color);
    color: white;
}

.progress-step.completed .step-number {
    background-color: var(--success-color);
    color: white;
    animation: successPulse 0.5s ease-out;
}

@keyframes successPulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

.step-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Onboarding Specific */
.onboard-header {
    text-align: center;
    margin-bottom: 2rem;
}

.onboard-step {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.step-content {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow);
}

.step-content.success {
    border-color: var(--success-color);
    background: rgba(var(--success-color-rgb), 0.1);
}

.step-help {
    background: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
}

.step-help h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.step-help details {
    margin-top: 1rem;
}

.step-help summary {
    cursor: pointer;
    color: var(--primary-color);
    font-weight: 500;
}

/* Session Info */
.session-info {
    background: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1rem;
    margin: 1rem 0;
}

.session-info.success {
    background: rgba(var(--success-color-rgb), 0.1);
    border-color: var(--success-color);
}

/* Status Page */
.status-overview {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.status-card,
.progress-card,
.next-step-card,
.delegation-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
}

.status-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    font-size: 1.125rem;
    margin-bottom: 1rem;
}

.status-did_verified {
    background: rgba(var(--primary-color-rgb), 0.1);
    color: var(--primary-color);
}

.status-fqdn_verified {
    background: rgba(var(--warning-color-rgb), 0.1);
    color: var(--warning-color);
}

.status-proof_verified,
.status-completed {
    background: rgba(var(--success-color-rgb), 0.1);
    color: var(--success-color);
    font-weight: bold;
}

.detail-item {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.5rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
    gap: 1rem;
    flex-wrap: wrap;
}

.detail-value {
    flex: 1;
    min-width: 0;
    text-align: right;
}

.detail-label {
    font-weight: 500;
}

.detail-value code,
code {
    background: var(--background-color);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.875rem;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    word-break: break-all;
    overflow-wrap: break-word;
    max-width: 100%;
    display: inline-block;
}

.progress-steps {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.progress-steps .progress-step {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem;
    border-radius: var(--border-radius);
    background: var(--background-color);
}

.progress-steps .progress-step.completed {
    background: rgba(var(--success-color-rgb), 0.1);
}

.progress-steps .progress-step.current {
    background: rgba(var(--primary-color-rgb), 0.1);
    border: 2px solid var(--primary-color);
}

.step-icon {
    font-size: 1.25rem;
}

/* Alerts and Flash Messages */
.alert {
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    transition: background-color 0.3s, border-color 0.3s, color 0.3s;
}

.alert-error {
    background: rgba(var(--error-color-rgb), 0.1);
    border: 1px solid rgba(var(--error-color-rgb), 0.3);
    color: var(--error-color);
}

.flash {
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    transition: background-color 0.3s, border-color 0.3s, color 0.3s;
    animation: flashIn 0.5s ease-out;
}

@keyframes flashIn {
    0% { transform: translateY(-10px); opacity: 0; }
    100% { transform: translateY(0); opacity: 1; }
}

.flash-success {
    background: rgba(var(--success-color-rgb), 0.1);
    border: 1px solid rgba(var(--success-color-rgb), 0.3);
    color: var(--success-color);
}

.flash-error {
    background: rgba(var(--error-color-rgb), 0.1);
    border: 1px solid rgba(var(--error-color-rgb), 0.3);
    color: var(--error-color);
}

/* Features Section */
.features-section {
    margin: 4rem 0 6rem;
    padding: 3rem 0;
    background-color: var(--background-color);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.features-section h2 {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2.2rem;
    color: var(--text-primary);
    position: relative;
    padding-bottom: 1rem;
}

.features-section h2:after {
    content: '';
    position: absolute;
    width: 80px;
    height: 3px;
    background: var(--primary-color);
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 3px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.feature-card {
    background: var(--surface-color);
    border-radius: var(--border-radius);
    padding: 2.5rem 2rem;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid var(--border-color);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-size: 1.3rem;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 1.05rem;
}

/* Statistics */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 1rem;
}

.stat-item {
    text-align: center;
    padding: 1rem;
    background: var(--background-color);
    border-radius: var(--border-radius);
}

.stat-value {
    display: block;
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Responsive Design */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: 1rem;
    }

    .nav {
        justify-content: center;
    }

    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 1.1rem;
        padding: 0 1rem;
    }
    
    .onboarding-content {
        padding: 1.5rem;
    }
    
    .onboarding-panel {
        margin: 1.5rem 1rem 3rem;
    }
    
    .step-text {
        font-size: 1rem;
    }
    
    .start-btn {
        width: 100%;
        padding: 0.8rem 1rem;
    }
    
    .features-section {
        margin: 2rem 0 3rem;
        padding: 2rem 0;
    }
    
    .features-section h2 {
        font-size: 1.8rem;
        margin-bottom: 2rem;
    }
    
    .feature-card {
        padding: 1.5rem;
    }

    .card-grid {
        grid-template-columns: 1fr;
    }

    .onboard-step {
        grid-template-columns: 1fr;
    }

    .status-overview {
        grid-template-columns: 1fr;
    }

    .form-actions {
        flex-direction: column;
    }

    .progress-bar {
        flex-direction: column;
        gap: 1rem;
    }

    .progress-step:not(:last-child)::after {
        display: none;
    }

    .input-group {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 0.5rem;
    }

    .main {
        padding: 1rem 0;
    }

    .step-content,
    .status-card,
    .progress-card {
        padding: 1rem;
    }
}

/* Accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary-color);
    color: white;
    padding: 8px 16px;
    z-index: 100;
    transition: top 0.2s;
    border-radius: 0 0 var(--border-radius) 0;
}

.skip-link:focus {
    top: 0;
}

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

/* Focus styles for keyboard navigation */
.btn:focus,
.form-input:focus,
.form-textarea:focus,
.nav-link:focus,
.theme-toggle:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: more) {
    :root {
        --border-color: #000000;
        --text-secondary: #000000;
    }
    
    :root.dark-mode {
        --border-color: #ffffff;
        --text-secondary: #ffffff;
    }
}

/* Environment Variables Section */
.env-vars-section {
    background: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin: 2rem 0;
}

.env-vars-section h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.env-vars-container {
    position: relative;
    margin: 1.5rem 0;
}

.env-vars-code {
    background: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1rem;
    overflow-x: auto;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.875rem;
    line-height: 1.5;
    margin-bottom: 0.5rem;
    max-width: 100%;
}

.env-vars-code code {
    color: var(--text-primary);
    display: block;
    white-space: pre;
}

.copy-button {
    margin-top: 0.5rem;
}

.env-vars-instructions {
    margin-top: 1.5rem;
}

.env-vars-instructions h4 {
    color: var(--text-primary);
    margin-bottom: 0.75rem;
    font-size: 1rem;
}

.env-vars-instructions ol {
    padding-left: 1.5rem;
    color: var(--text-secondary);
}

.env-vars-instructions li {
    margin-bottom: 0.5rem;
}

.env-vars-note {
    background: rgba(var(--warning-color-rgb), 0.1);
    border: 1px solid var(--warning-color);
    border-radius: var(--border-radius);
    padding: 1rem;
    margin-top: 1rem;
    color: var(--text-primary);
}

.env-vars-note strong {
    color: var(--warning-color);
}

/* Copy feedback animation */
.copy-feedback {
    animation: copyPulse 0.3s ease-in-out;
}

@keyframes copyPulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}