/* ========================================
   NoNs AI — Style Sheet
   Dark premium SaaS landing page
   ======================================== */

/* --- Reset & Base --- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg: #0a0f1e;
    --bg-alt: #0f1629;
    --surface: #151c32;
    --surface-hover: #1a2340;
    --accent: #7c3aed;
    --accent-light: #a78bfa;
    --accent-glow: rgba(124, 58, 237, 0.3);
    --text: #f1f5f9;
    --text-muted: #94a3b8;
    --text-dim: #64748b;
    --success: #22c55e;
    --danger: #ef4444;
    --border: rgba(148, 163, 184, 0.1);
    --radius: 12px;
    --radius-lg: 20px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --max-width: 1200px;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    color: var(--accent-light);
    text-decoration: none;
    transition: color var(--transition);
}
a:hover { color: var(--accent); }

img { max-width: 100%; display: block; }

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

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    border: none;
    text-decoration: none;
    gap: 8px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), #6d28d9);
    color: #fff;
    box-shadow: 0 4px 24px var(--accent-glow);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px var(--accent-glow);
    color: #fff;
}

.btn-secondary {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
    backdrop-filter: blur(4px);
}
.btn-secondary:hover {
    border-color: var(--accent-light);
    color: var(--accent-light);
}

.btn-outline {
    background: transparent;
    color: var(--accent-light);
    border: 2px solid var(--accent);
}
.btn-outline:hover {
    background: var(--accent);
    color: #fff;
}

.btn-full { width: 100%; }

/* --- Navbar --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: all var(--transition);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(10, 15, 30, 0.92);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 10px 0;
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text);
    text-decoration: none;
    letter-spacing: -0.5px;
}
.nav-logo span {
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-links a {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 500;
    transition: color var(--transition);
    text-decoration: none;
}
.nav-links a:hover { color: var(--text); }

.lang-toggle {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 50px;
    padding: 6px 14px;
    cursor: pointer;
    font-size: 1.1rem;
    transition: all var(--transition);
    display: flex;
    align-items: center;
    gap: 6px;
}
.lang-toggle:hover {
    border-color: var(--accent);
    background: var(--surface-hover);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: all var(--transition);
}

/* --- Hero --- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 24px 80px;
    overflow: hidden;
}

#heroCanvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.hero-title {
    font-size: clamp(2.4rem, 6vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -1px;
    background: linear-gradient(135deg, #fff 0%, var(--accent-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

.hero-ctas {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* --- Sections --- */
.section {
    padding: 100px 0;
}
.section-alt {
    background: var(--bg-alt);
}

.section-title {
    text-align: center;
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 60px;
    letter-spacing: -0.5px;
}

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

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    text-align: center;
    transition: all var(--transition);
}
.card:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
    box-shadow: 0 8px 40px var(--accent-glow);
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

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

/* --- Steps --- */
.steps {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 0;
}

.step {
    flex: 1;
    max-width: 320px;
    text-align: center;
    padding: 0 24px;
}

.step-connector {
    width: 80px;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), transparent);
    margin-top: 36px;
    flex-shrink: 0;
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), #6d28d9);
    color: #fff;
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 24px;
    box-shadow: 0 4px 24px var(--accent-glow);
}

.step-title {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.step-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* --- Icon Grid --- */
.icon-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    max-width: 900px;
    margin: 0 auto;
}

.icon-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
    text-align: center;
}

.icon-circle {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: var(--surface);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    transition: all var(--transition);
}
.icon-item:hover .icon-circle {
    border-color: var(--accent);
    box-shadow: 0 4px 24px var(--accent-glow);
    transform: translateY(-4px);
}

.icon-item span {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* --- Pricing --- */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    align-items: start;
}

.pricing-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    text-align: center;
    transition: all var(--transition);
    position: relative;
}
.pricing-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
}

.pricing-featured {
    border-color: var(--accent);
    box-shadow: 0 8px 48px var(--accent-glow);
    transform: scale(1.05);
    z-index: 1;
}
.pricing-featured:hover {
    transform: scale(1.05) translateY(-4px);
}

.pricing-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--accent), #6d28d9);
    color: #fff;
    padding: 6px 20px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 1px;
    white-space: nowrap;
}

.pricing-header { margin-bottom: 28px; }

.pricing-name {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.pricing-price {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.price-setup {
    font-size: 0.9rem;
    color: var(--text-dim);
}
.price-setup small { font-weight: 400; }

.price-monthly {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -1px;
    background: linear-gradient(135deg, #fff, var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.price-monthly small {
    font-size: 1rem;
    font-weight: 500;
}

.pricing-features {
    list-style: none;
    margin-bottom: 32px;
    text-align: left;
}
.pricing-features li {
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.92rem;
    display: flex;
    align-items: center;
    gap: 10px;
}
.pricing-features li::before {
    content: '✓';
    color: var(--accent-light);
    font-weight: 700;
    flex-shrink: 0;
}

/* --- Comparison Table --- */
.comparison-table {
    max-width: 900px;
    margin: 0 auto;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.comparison-header,
.comparison-row {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
}

.comparison-header {
    background: rgba(124, 58, 237, 0.1);
    font-weight: 700;
    font-size: 0.95rem;
}

.comparison-header .comparison-label,
.comparison-header .comparison-col {
    padding: 20px 24px;
}

.comparison-row {
    border-top: 1px solid var(--border);
}

.comparison-label {
    padding: 16px 24px;
    font-weight: 600;
    font-size: 0.9rem;
}

.comparison-col {
    padding: 16px 24px;
    font-size: 0.9rem;
}

.comparison-bad { color: var(--text-dim); }
.comparison-good { color: var(--success); }
.comparison-header .comparison-bad { color: var(--danger); }
.comparison-header .comparison-good { color: var(--accent-light); }

/* --- Stats & Testimonial --- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-bottom: 60px;
}

.stat { text-align: center; }

.stat-number {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    background: linear-gradient(135deg, #fff, var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.testimonial {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
    border: none;
    padding: 40px;
    background: var(--surface);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--accent);
}

.testimonial p {
    font-size: 1.15rem;
    font-style: italic;
    line-height: 1.7;
    margin-bottom: 16px;
    color: var(--text);
}

.testimonial cite {
    color: var(--text-dim);
    font-size: 0.9rem;
    font-style: normal;
}

/* --- Contact --- */
.contact-wrapper {
    max-width: 640px;
    margin: 0 auto;
    position: relative;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    position: relative;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 16px 20px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 1rem;
    font-family: inherit;
    transition: all var(--transition);
    outline: none;
}
.form-group textarea { resize: vertical; min-height: 120px; }

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group label {
    position: absolute;
    left: 20px;
    top: 16px;
    color: var(--text-dim);
    font-size: 1rem;
    pointer-events: none;
    transition: all 0.2s ease;
}

.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:focus + label,
.form-group textarea:not(:placeholder-shown) + label {
    top: -10px;
    left: 16px;
    font-size: 0.75rem;
    color: var(--accent-light);
    background: var(--bg);
    padding: 0 6px;
}

.section-alt .form-group input:focus + label,
.section-alt .form-group input:not(:placeholder-shown) + label,
.section-alt .form-group textarea:focus + label,
.section-alt .form-group textarea:not(:placeholder-shown) + label {
    background: var(--bg-alt);
}

.contact-info {
    margin-top: 32px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.contact-info p { color: var(--text-muted); }

.whatsapp-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    background: #25d366;
    color: #fff;
    border-radius: 50px;
    font-weight: 600;
    transition: all var(--transition);
    text-decoration: none;
}
.whatsapp-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.3);
    color: #fff;
}

.email-link {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.form-success {
    display: none;
    text-align: center;
    padding: 60px 20px;
}

.form-success.show {
    display: block;
}

.success-icon {
    font-size: 3rem;
    margin-bottom: 16px;
}

.form-success p {
    font-size: 1.2rem;
    color: var(--success);
}

/* --- Footer --- */
.footer {
    border-top: 1px solid var(--border);
    padding: 40px 0;
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-legal {
    color: var(--text-dim);
    font-size: 0.85rem;
    margin-top: 4px;
}

.footer-domain {
    color: var(--text-dim);
    font-size: 0.8rem;
}

.footer-links {
    display: flex;
    gap: 24px;
}
.footer-links a {
    color: var(--text-dim);
    font-size: 0.85rem;
    transition: color var(--transition);
}
.footer-links a:hover { color: var(--text); }

/* --- Fade-in Animation --- */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 900px) {
    .cards-3 { grid-template-columns: 1fr; }
    .pricing-grid { grid-template-columns: 1fr; max-width: 420px; margin-left: auto; margin-right: auto; }
    .pricing-featured { transform: none; }
    .pricing-featured:hover { transform: translateY(-4px); }
    .stats-grid { grid-template-columns: 1fr; gap: 24px; }
    .icon-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }

    .steps { flex-direction: column; align-items: center; gap: 32px; }
    .step-connector { width: 2px; height: 40px; background: linear-gradient(180deg, var(--accent), transparent); margin: 0; }

    .comparison-header,
    .comparison-row {
        grid-template-columns: 1.2fr 1fr 1fr;
    }
    .comparison-label,
    .comparison-col { padding: 12px 14px; font-size: 0.82rem; }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--bg);
        flex-direction: column;
        padding: 80px 32px;
        gap: 24px;
        transition: right var(--transition);
        border-left: 1px solid var(--border);
        z-index: 999;
    }
    .nav-links.open { right: 0; }
    .nav-links a { font-size: 1.1rem; }

    .nav-toggle { display: flex; z-index: 1001; }
    .nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
    .nav-toggle.open span:nth-child(2) { opacity: 0; }
    .nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

    .hero { padding: 100px 20px 60px; }

    .comparison-header,
    .comparison-row {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .comparison-label { background: rgba(255,255,255,0.03); font-weight: 700; }
    .comparison-col { padding: 10px 24px; }
    .comparison-header .comparison-label { display: none; }
}