:root {
    --bg: #0f1419;
    --bg-elevated: #1a222d;
    --surface: #232d3b;
    --text: #f4f6f8;
    --text-muted: #9aa5b5;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --accent: #22c55e;
    --danger: #ef4444;
    --border: rgba(255, 255, 255, 0.08);
    --radius: 12px;
    --shadow: 0 24px 48px rgba(0, 0, 0, 0.35);
    --font: "DM Sans", system-ui, sans-serif;
    --container: min(1120px, 92vw);
}

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

a:hover {
    text-decoration: underline;
}

.container {
    width: var(--container);
    margin-inline: auto;
}

/* Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(15, 20, 25, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.header-inner {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1rem 0;
}

.logo {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text);
    text-decoration: none;
}

.nav-main {
    display: flex;
    gap: 1.25rem;
}

.nav-main a {
    color: var(--text-muted);
    font-size: 0.9rem;
    text-decoration: none;
}

.nav-main a:hover {
    color: var(--text);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.25rem;
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text);
}

.header-login {
    margin-left: auto;
}

.header-cta {
    margin-left: 0.5rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.65rem 1.25rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    border: none;
    cursor: pointer;
    font-family: inherit;
    text-decoration: none;
    transition: background 0.2s, transform 0.15s;
}

.btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background: var(--primary-hover);
    text-decoration: none;
}

.btn-outline {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
}

.btn-outline:hover {
    background: var(--surface);
}

.btn-lg {
    padding: 0.9rem 1.75rem;
    font-size: 1rem;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
}

.btn-block {
    width: 100%;
}

.btn.is-loading .btn-label {
    display: none;
}

.btn.is-loading .btn-loading {
    display: inline !important;
}

/* Hero */
.hero {
    padding: 4rem 0 5rem;
    background: radial-gradient(ellipse 80% 60% at 70% -10%, rgba(59, 130, 246, 0.25), transparent),
        radial-gradient(ellipse 50% 40% at 10% 50%, rgba(34, 197, 94, 0.12), transparent);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.eyebrow {
    color: var(--accent);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin: 0 0 0.75rem;
}

.hero h1 {
    font-size: clamp(2rem, 4vw, 2.75rem);
    line-height: 1.15;
    margin: 0 0 1rem;
    font-weight: 700;
}

.hero-sub {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin: 0 0 1.5rem;
    max-width: 32rem;
}

.hero-actions {
    margin-bottom: 1.5rem;
}

.cta-note {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin: 0.75rem 0 0;
}

.trust-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1.25rem;
    list-style: none;
    padding: 0;
    margin: 0;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.trust-badges li::before {
    content: "✓ ";
    color: var(--accent);
}

/* Dashboard mock */
.dashboard-mock {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
    box-shadow: var(--shadow);
}

.mock-bar {
    height: 8px;
    width: 40%;
    background: var(--surface);
    border-radius: 4px;
    margin-bottom: 1rem;
}

.mock-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}

.mock-card {
    height: 56px;
    background: var(--surface);
    border-radius: 8px;
}

.mock-card.accent {
    background: linear-gradient(135deg, var(--primary), #6366f1);
}

.mock-chart {
    display: flex;
    align-items: flex-end;
    gap: 0.5rem;
    height: 120px;
    padding-top: 0.5rem;
}

.mock-chart span {
    flex: 1;
    height: var(--h);
    background: linear-gradient(180deg, var(--primary), rgba(59, 130, 246, 0.3));
    border-radius: 4px 4px 0 0;
    min-height: 20%;
}

/* Sections */
.section-title {
    font-size: clamp(1.5rem, 3vw, 2rem);
    text-align: center;
    margin: 0 0 2rem;
}

.section-lead {
    text-align: center;
    color: var(--text-muted);
    margin: -1rem auto 2.5rem;
    max-width: 36rem;
}

.pain {
    padding: 4rem 0;
    background: var(--bg-elevated);
}

.pain-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 1rem;
    max-width: 40rem;
    margin-inline: auto;
}

.pain-list li {
    padding: 1.25rem 1.5rem;
    background: var(--surface);
    border-radius: var(--radius);
    border-left: 3px solid var(--danger);
    font-size: 1.05rem;
}

.solution {
    padding: 5rem 0;
    text-align: center;
}

.solution-inner {
    max-width: 40rem;
}

.solution h2 {
    font-size: 1.75rem;
    margin: 0 0 1rem;
}

.solution p {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin: 0;
}

.features {
    padding: 4rem 0 5rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
}

.feature-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
}

.feature-icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: rgba(59, 130, 246, 0.2);
    margin-bottom: 1rem;
}

.feature-card h3 {
    margin: 0 0 0.5rem;
    font-size: 1.1rem;
}

.feature-card p {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.testimonials {
    padding: 4rem 0;
    background: var(--bg-elevated);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.testimonial-card {
    margin: 0;
    padding: 1.75rem;
    background: var(--surface);
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.testimonial-card p {
    font-size: 1.05rem;
    margin: 0 0 1.25rem;
    font-style: italic;
}

.testimonial-card cite {
    font-style: normal;
    font-weight: 600;
    display: block;
}

.testimonial-card span {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.pricing {
    padding: 5rem 0;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    align-items: start;
}

.plan-card {
    position: relative;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
}

.plan-card--highlight {
    border-color: var(--primary);
    box-shadow: 0 0 0 1px var(--primary), var(--shadow);
}

.plan-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    white-space: nowrap;
}

.plan-card h3 {
    margin: 0.5rem 0 0.5rem;
    text-align: center;
}

.plan-price {
    text-align: center;
    margin: 0 0 1.5rem;
}

.plan-price .currency {
    font-size: 1rem;
    color: var(--text-muted);
}

.plan-price .amount {
    font-size: 2.5rem;
    font-weight: 700;
}

.plan-price .period {
    color: var(--text-muted);
}

.plan-benefits {
    list-style: none;
    padding: 0;
    margin: 0 0 1.5rem;
}

.plan-benefits li {
    padding: 0.4rem 0;
    font-size: 0.95rem;
    color: var(--text-muted);
}

.plan-benefits li::before {
    content: "✓ ";
    color: var(--accent);
}

.faq {
    padding: 4rem 0 5rem;
    background: var(--bg-elevated);
}

.faq-container {
    max-width: 640px;
}

.faq-item {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 0.75rem;
    background: var(--surface);
}

.faq-item summary {
    padding: 1rem 1.25rem;
    cursor: pointer;
    font-weight: 600;
    list-style: none;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item p {
    margin: 0;
    padding: 0 1.25rem 1.25rem;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.final-cta {
    padding: 5rem 0;
    text-align: center;
    background: radial-gradient(ellipse 60% 50% at 50% 100%, rgba(59, 130, 246, 0.2), transparent);
}

.final-cta-inner {
    max-width: 36rem;
}

.final-cta h2 {
    margin: 0 0 0.75rem;
    font-size: 1.75rem;
}

.final-cta p {
    color: var(--text-muted);
    margin: 0 0 1.5rem;
}

.site-footer {
    padding: 2rem 0;
    border-top: 1px solid var(--border);
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-inner p {
    margin: 0.25rem 0;
}

/* Alerts */
.alert-container {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 200;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-width: 360px;
}

.alert {
    padding: 1rem 1.25rem;
    border-radius: 8px;
    font-size: 0.9rem;
    box-shadow: var(--shadow);
    animation: slideIn 0.3s ease;
}

.alert--success {
    background: #14532d;
    color: #bbf7d0;
    border: 1px solid var(--accent);
}

.alert--error {
    background: #450a0a;
    color: #fecaca;
    border: 1px solid var(--danger);
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Lead dialog */
.lead-dialog {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0;
    background: var(--bg-elevated);
    color: var(--text);
    max-width: 420px;
    width: calc(100% - 2rem);
    box-shadow: var(--shadow);
}

.lead-dialog::backdrop {
    background: rgba(0, 0, 0, 0.6);
}

.lead-form {
    padding: 1.5rem;
}

.lead-form h3 {
    margin: 0 0 0.5rem;
}

.lead-form-plan {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin: 0 0 1.25rem;
}

.lead-form label {
    display: block;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    font-weight: 500;
}

.lead-form input {
    display: block;
    width: 100%;
    margin-top: 0.35rem;
    padding: 0.65rem 0.75rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    font-family: inherit;
}

.lead-form input.is-invalid {
    border-color: var(--danger);
}

.field-error {
    display: block;
    color: var(--danger);
    font-size: 0.8rem;
    min-height: 1.2em;
    margin-top: 0.25rem;
}

.dialog-actions {
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
    margin-top: 1rem;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-main,
    .header-cta {
        display: none;
    }

    .nav-toggle {
        display: flex;
        margin-left: auto;
    }

    .site-header.is-open .nav-main {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-elevated);
        padding: 1rem;
        border-bottom: 1px solid var(--border);
    }

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

    .hero-visual {
        order: -1;
    }

    .pricing-grid,
    .features-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .alert-container {
        left: 1rem;
        right: 1rem;
        max-width: none;
    }
}