/* Base Reset & Variables */
:root {
    --bg-primary: #0A0A0F;
    --bg-card: #18181B;
    --color-primary: #6366F1;
    --color-primary-hover: #818CF8;
    --color-success: #10B981;
    --text-primary: #FAFAFA;
    --text-secondary: #A1A1AA;
    --text-muted: #71717A;
    --border-color: #27272A;
    --max-width: 1200px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    font-weight: 400;
}

.mono {
    font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 3rem;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 80px 0;
    background: linear-gradient(180deg, var(--bg-primary) 0%, #0D0D14 100%);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    max-width: 600px;
}

.hero-headline {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--color-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subhead {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.cta-button {
    display: inline-block;
    padding: 16px 32px;
    background: var(--color-primary);
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.125rem;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.cta-button:hover {
    background: var(--color-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

/* Activity Feed */
.hero-activity-feed {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    max-width: 500px;
}

.activity-feed-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background: var(--color-success);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.activity-feed-content {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.activity-item {
    display: flex;
    gap: 12px;
    padding: 12px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
    font-size: 0.875rem;
}

.activity-time {
    color: var(--text-muted);
    min-width: 60px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
}

.activity-text {
    color: var(--text-secondary);
}

/* How It Works Section */
.how-it-works {
    padding: 120px 0;
    background: var(--bg-primary);
}

.steps-container {
    display: flex;
    align-items: stretch;
    justify-content: center;
    gap: 0;
    margin-top: 40px;
}

.step-card {
    flex: 1;
    max-width: 280px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 32px 24px;
    text-align: center;
    position: relative;
    transition: all 0.3s ease;
}

.step-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
}

.step-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
}

.step-icon svg {
    width: 28px;
    height: 28px;
}

.step-number {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    color: var(--color-primary);
    margin-bottom: 8px;
    font-weight: 600;
}

.step-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.step-description {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.step-connector {
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, var(--border-color), var(--color-primary), var(--border-color));
    align-self: center;
    margin: 0 -10px;
    z-index: 1;
}

/* Differentiators Section */
.differentiators {
    padding: 120px 0;
    background: linear-gradient(180deg, var(--bg-primary) 0%, #0D0D14 100%);
}

.comparison-header {
    display: flex;
    justify-content: center;
    gap: 120px;
    margin-bottom: 40px;
}

.comparison-label {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.comparison-label.other {
    color: var(--text-muted);
}

.comparison-label.polsia {
    color: var(--color-primary);
}

.diff-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.diff-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 32px;
    transition: all 0.3s ease;
}

.diff-card:hover {
    border-color: var(--color-primary);
}

.diff-icon {
    width: 48px;
    height: 48px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    margin-bottom: 20px;
}

.diff-icon svg {
    width: 24px;
    height: 24px;
}

.diff-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.diff-comparison {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.diff-other, .diff-polsia {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: 8px;
    font-size: 0.875rem;
}

.diff-other {
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-muted);
}

.diff-polsia {
    background: rgba(99, 102, 241, 0.1);
    color: var(--text-primary);
}

.diff-x {
    color: #EF4444;
    font-weight: 700;
    font-size: 1rem;
}

.diff-check {
    color: var(--color-success);
    font-weight: 700;
    font-size: 1rem;
}

/* Dashboard Preview Section */
.dashboard-preview {
    padding: 120px 0;
    background: var(--bg-primary);
}

.dashboard-mock {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    margin-top: 40px;
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    background: rgba(0, 0, 0, 0.2);
}

.dashboard-project {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.project-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.project-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.dashboard-status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.875rem;
    color: var(--color-success);
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--color-success);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1px;
    background: var(--border-color);
}

.dashboard-card {
    background: var(--bg-card);
    padding: 24px;
}

.card-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
}

/* Current Focus Card */
.focus-content {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.focus-task {
    display: flex;
    align-items: center;
    gap: 12px;
}

.task-icon {
    color: var(--color-primary);
    font-size: 0.5rem;
}

.task-text {
    font-size: 1rem;
    font-weight: 500;
}

.focus-progress {
    display: flex;
    align-items: center;
    gap: 12px;
}

.progress-bar {
    flex: 1;
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--color-primary);
    border-radius: 3px;
    transition: width 0.3s ease;
}

.progress-text {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-family: 'JetBrains Mono', monospace;
}

/* Reasoning Card */
.reasoning-content {
    display: flex;
    flex-direction: column;
    gap: 8px;
    font-size: 0.875rem;
}

.reasoning-step {
    color: var(--text-secondary);
    padding: 8px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.reasoning-step:last-child {
    border-bottom: none;
}

.reasoning-step.current {
    color: var(--color-primary);
}

.step-marker {
    color: var(--text-muted);
    margin-right: 8px;
}

/* Actions Queue Card */
.queue-content {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.queue-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
    font-size: 0.875rem;
}

.queue-item.active {
    background: rgba(99, 102, 241, 0.1);
}

.queue-status {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.queue-status.running {
    background: var(--color-primary);
    animation: pulse 1.5s ease-in-out infinite;
}

.queue-status.pending {
    background: var(--text-muted);
}

.queue-text {
    color: var(--text-secondary);
}

.queue-item.active .queue-text {
    color: var(--text-primary);
}

/* Metrics Card */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.metric {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 16px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
    text-align: center;
}

.metric-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    font-family: 'JetBrains Mono', monospace;
}

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

/* Email Capture Section */
.email-capture {
    padding: 120px 0;
    background: linear-gradient(180deg, #0D0D14 0%, var(--bg-primary) 100%);
}

.signup-form {
    max-width: 500px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-input, .form-textarea {
    width: 100%;
    padding: 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    transition: border-color 0.2s ease;
}

.form-input:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form-input::placeholder, .form-textarea::placeholder {
    color: var(--text-muted);
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

.submit-button {
    padding: 16px 32px;
    background: var(--color-primary);
    color: var(--text-primary);
    border: none;
    font-weight: 600;
    font-size: 1.125rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: 'Inter', sans-serif;
}

.submit-button:hover:not(:disabled) {
    background: var(--color-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

.submit-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Signup Success State */
.signup-success {
    max-width: 500px;
    margin: 0 auto;
    text-align: center;
    padding: 40px;
    background: var(--bg-card);
    border: 1px solid var(--color-success);
    border-radius: 16px;
}

.success-icon {
    width: 64px;
    height: 64px;
    background: rgba(16, 185, 129, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 2rem;
    color: var(--color-success);
}

.success-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.success-text {
    color: var(--text-secondary);
}

/* Footer */
.footer {
    padding: 60px 0;
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer-logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.footer-tagline {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.footer-copy {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-content {
        max-width: 100%;
        text-align: center;
    }

    .hero-activity-feed {
        max-width: 100%;
    }

    .steps-container {
        flex-wrap: wrap;
        gap: 24px;
    }

    .step-connector {
        display: none;
    }

    .step-card {
        max-width: calc(50% - 12px);
        flex: 0 0 calc(50% - 12px);
    }

    .diff-cards {
        grid-template-columns: 1fr;
    }

    .comparison-header {
        gap: 60px;
    }
}

@media (max-width: 768px) {
    .section-title {
        font-size: 2rem;
    }

    .hero-headline {
        font-size: 2.5rem;
    }

    .hero-subhead {
        font-size: 1.125rem;
    }

    .step-card {
        max-width: 100%;
        flex: 0 0 100%;
    }

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

    .footer-content {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }

    .comparison-header {
        gap: 30px;
        font-size: 0.75rem;
    }

    .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero {
        padding: 60px 0;
    }

    .hero-headline {
        font-size: 2rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .how-it-works,
    .differentiators,
    .dashboard-preview,
    .email-capture {
        padding: 80px 0;
    }

    .cta-button,
    .submit-button {
        width: 100%;
        text-align: center;
    }
}