:root {
    --color-bg: #0a0a0f;
    --color-bg-secondary: #12121a;
    --color-bg-card: rgba(255, 255, 255, 0.03);
    --color-bg-card-hover: rgba(255, 255, 255, 0.06);
    --color-text: #ffffff;
    --color-text-secondary: #a0a0b0;
    --color-text-muted: #6b6b7b;
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-hover: rgba(255, 255, 255, 0.15);
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    --gradient-purple: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --color-success: #27ca40;
    --color-danger: #ff5f56;
    --color-warning: #ffbd2e;
    --border-radius: 16px;
    --border-radius-sm: 8px;
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
}

a {
    text-decoration: none;
    color: #667eea;
    transition: var(--transition-fast);
}

a:hover {
    color: #f093fb;
}

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

.app-container {
    max-width: 600px;
    margin: 0 auto;
    padding: 40px 24px;
    min-height: 100vh;
    position: relative;
}

/* Progress Bar */
.progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--color-border);
    z-index: 100;
}

.progress-fill {
    height: 100%;
    width: 25%;
    background: var(--gradient-purple);
    transition: width 0.5s ease;
}

/* Step Indicators */
.step-indicators {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
    padding-top: 20px;
}

.step-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-border);
    transition: var(--transition-normal);
}

.step-dot.active {
    background: var(--gradient-purple);
    transform: scale(1.2);
}

.step-dot.completed {
    background: var(--color-success);
}

/* Back Button */
.back-btn {
    position: absolute;
    top: 60px;
    left: 24px;
    display: flex;
    align-items: center;
    gap: 8px;
    background: none;
    border: none;
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition-fast);
    font-family: inherit;
}

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

/* Steps */
.step {
    display: none;
    animation: fadeIn 0.5s ease;
}

.step.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* Icon Container */
.icon-container {
    width: 120px;
    height: 120px;
    margin: 0 auto 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    position: relative;
}

.icon-container::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: 50%;
    background: var(--gradient-primary);
    opacity: 0.3;
    z-index: -1;
    filter: blur(20px);
}

.icon-container.small {
    width: 80px;
    height: 80px;
}

.icon-container.success {
    background: rgba(39, 202, 64, 0.1);
    border-color: var(--color-success);
}

.main-icon {
    font-size: 3rem;
}

.icon-container.small .main-icon {
    font-size: 2rem;
}

h1,
h2 {
    font-weight: 800;
    margin-bottom: 16px;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 1.8rem;
}

.subtitle {
    color: var(--color-text-secondary);
    font-size: 1.1rem;
    max-width: 450px;
    margin: 0 auto 32px;
    line-height: 1.7;
}

/* Features Preview */
.features-preview {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 50px;
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

.feature-icon {
    font-size: 1rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition-normal);
    border: none;
    cursor: pointer;
    font-family: inherit;
}

.btn-primary {
    background: var(--gradient-purple);
    color: var(--color-text);
    box-shadow: 0 4px 20px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 40px rgba(102, 126, 234, 0.5);
}

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

.btn-secondary {
    background: var(--color-bg-card);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-border-hover);
}

.btn-lg {
    padding: 16px 40px;
    font-size: 1.05rem;
    width: 100%;
    max-width: 320px;
}

.hint {
    margin-top: 16px;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* Form Groups */
.form-group {
    text-align: left;
    margin-bottom: 24px;
    position: relative;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.optional {
    font-weight: 400;
    color: var(--color-text-muted);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    color: var(--color-text);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

.char-count {
    position: absolute;
    right: 12px;
    bottom: 12px;
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

/* Key Generation */
.generate-btn {
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        box-shadow: 0 4px 20px rgba(102, 126, 234, 0.4);
    }

    50% {
        box-shadow: 0 4px 40px rgba(102, 126, 234, 0.6);
    }
}

/* Keys Display */
.keys-display {
    text-align: left;
}

.key-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 20px;
    margin-bottom: 16px;
}

.key-card.public {
    border-color: rgba(102, 126, 234, 0.3);
}

.key-card.secret {
    border-color: rgba(255, 95, 86, 0.3);
    background: rgba(255, 95, 86, 0.05);
}

.key-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    flex-wrap: wrap;
    gap: 8px;
}

.key-label {
    font-weight: 600;
    font-size: 0.95rem;
}

.key-badge {
    font-size: 0.7rem;
    padding: 4px 10px;
    border-radius: 50px;
    font-weight: 600;
    text-transform: uppercase;
}

.key-badge.safe {
    background: rgba(39, 202, 64, 0.15);
    color: var(--color-success);
}

.key-badge.danger {
    background: rgba(255, 95, 86, 0.15);
    color: var(--color-danger);
}

.key-value {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    padding: 12px;
    margin-bottom: 8px;
}

.key-value code {
    flex: 1;
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 0.85rem;
    word-break: break-all;
    line-height: 1.5;
}

.key-value code.blurred {
    filter: blur(5px);
    user-select: none;
}

.copy-btn,
.reveal-btn {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    padding: 8px;
    cursor: pointer;
    color: var(--color-text-secondary);
    transition: var(--transition-fast);
}

.copy-btn:hover,
.reveal-btn:hover {
    background: var(--color-bg-card-hover);
    color: var(--color-text);
}

.key-desc {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* Warning Box */
.warning-box {
    display: flex;
    gap: 16px;
    padding: 16px;
    background: rgba(255, 189, 46, 0.1);
    border: 1px solid rgba(255, 189, 46, 0.3);
    border-radius: var(--border-radius-sm);
    margin: 24px 0;
}

.warning-icon {
    font-size: 1.5rem;
}

.warning-content strong {
    display: block;
    color: var(--color-warning);
    margin-bottom: 4px;
}

.warning-content p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin: 0;
}

/* Confirm Checkbox */
.confirm-save {
    margin: 24px 0;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    user-select: none;
}

.checkbox-label input {
    display: none;
}

.checkmark {
    width: 22px;
    height: 22px;
    border: 2px solid var(--color-border);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
    flex-shrink: 0;
}

.checkbox-label input:checked+.checkmark {
    background: var(--gradient-purple);
    border-color: transparent;
}

.checkbox-label input:checked+.checkmark::after {
    content: '✓';
    color: white;
    font-size: 0.8rem;
}

/* Profile Preview */
.profile-preview {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    margin-bottom: 32px;
}

.avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--gradient-purple);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
}

.profile-info {
    text-align: left;
}

.profile-name {
    display: block;
    font-weight: 700;
    font-size: 1.1rem;
}

.profile-key {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    font-family: monospace;
}

/* Clients Grid */
.clients-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--color-text-secondary);
}

.clients-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 32px;
}

.client-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    transition: var(--transition-normal);
    position: relative;
    color: var(--color-text);
}

.client-card:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-border-hover);
    transform: translateY(-2px);
}

.client-icon {
    font-size: 1.8rem;
}

.client-info {
    text-align: left;
}

.client-name {
    display: block;
    font-weight: 600;
    font-size: 0.95rem;
}

.client-platform {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.recommended {
    position: absolute;
    top: -8px;
    right: 8px;
    background: var(--gradient-purple);
    color: white;
    font-size: 0.65rem;
    padding: 3px 8px;
    border-radius: 50px;
    font-weight: 600;
}

.client-card.browse-all {
    grid-column: span 2;
    justify-content: center;
    border-style: dashed;
}

/* Final Tips */
.final-tips {
    text-align: left;
    padding: 20px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    margin-bottom: 24px;
}

.final-tips h4 {
    font-size: 0.95rem;
    margin-bottom: 12px;
}

.final-tips ul {
    padding-left: 20px;
}

.final-tips li {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    margin-bottom: 8px;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    padding: 12px 24px;
    border-radius: 50px;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease;
    z-index: 1000;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
}

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

/* Responsive */
@media (max-width: 600px) {
    .app-container {
        padding: 30px 16px;
    }

    h1 {
        font-size: 2rem;
    }

    .features-preview {
        gap: 12px;
    }

    .feature-item {
        padding: 8px 12px;
        font-size: 0.8rem;
    }

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

    .client-card.browse-all {
        grid-column: span 1;
    }
}