/* ==================== Landing Page Styles ==================== */
/* Standalone — does not depend on style.css */

:root {
    --lp-primary: #6366f1;
    --lp-primary-dark: #4f46e5;
    --lp-primary-light: #818cf8;
    --lp-secondary: #10b981;
    --lp-secondary-dark: #059669;
    --lp-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --lp-gradient-soft: linear-gradient(135deg, #f0f0ff 0%, #f5f0ff 100%);
    --lp-text: #111827;
    --lp-text-secondary: #6b7280;
    --lp-text-light: #9ca3af;
    --lp-bg: #ffffff;
    --lp-bg-alt: #f9fafb;
    --lp-border: #e5e7eb;
    --lp-radius: 1rem;
    --lp-shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
    --lp-shadow-lg: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body.landing-body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--lp-text);
    background: var(--lp-bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* ==================== Utility ==================== */
.lp-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.lp-section {
    padding: 96px 0;
}

.lp-section-alt {
    background: var(--lp-bg-alt);
}

.lp-section-title {
    font-size: 2.25rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 16px;
    color: var(--lp-text);
}

.lp-section-subtitle {
    font-size: 1.125rem;
    text-align: center;
    color: var(--lp-text-secondary);
    max-width: 640px;
    margin: 0 auto 64px;
}

/* ==================== Navbar ==================== */
.lp-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--lp-border);
    transition: box-shadow 0.3s;
}

.lp-nav.scrolled {
    box-shadow: var(--lp-shadow);
}

.lp-nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.lp-nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--lp-text);
    text-decoration: none;
}

.lp-nav-logo svg {
    width: 40px;
    height: 40px;
    border-radius: 10px;
}

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

.lp-nav-links a {
    color: var(--lp-text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.2s;
}

.lp-nav-links a:hover { color: var(--lp-primary); }

.lp-nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.lp-lang-toggle {
    display: flex;
    background: var(--lp-bg-alt);
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--lp-border);
}

.lp-lang-btn {
    padding: 6px 12px;
    border: none;
    background: transparent;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--lp-text-secondary);
    transition: all 0.2s;
}

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

.lp-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all 0.25s ease;
}

.lp-btn-primary {
    background: var(--lp-gradient);
    color: white;
    box-shadow: 0 4px 14px rgba(99,102,241,0.4);
}

.lp-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99,102,241,0.5);
}

.lp-btn-outline {
    background: transparent;
    color: var(--lp-primary);
    border: 2px solid var(--lp-primary);
}

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

.lp-btn-white {
    background: white;
    color: var(--lp-primary-dark);
    box-shadow: var(--lp-shadow);
}

.lp-btn-white:hover {
    transform: translateY(-2px);
    box-shadow: var(--lp-shadow-lg);
}

.lp-btn-nav {
    padding: 8px 20px;
    font-size: 0.9rem;
    border-radius: 10px;
}

/* ==================== Hero ==================== */
.lp-hero {
    padding: 160px 0 96px;
    background: var(--lp-gradient-soft);
    position: relative;
    overflow: hidden;
}

.lp-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(99,102,241,0.08) 0%, transparent 70%);
}

.lp-hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(118,75,162,0.06) 0%, transparent 70%);
}

.lp-hero-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.lp-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(99,102,241,0.1);
    color: var(--lp-primary);
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 24px;
}

.lp-hero h1 {
    font-size: 3.25rem;
    font-weight: 900;
    line-height: 1.15;
    margin-bottom: 24px;
    color: var(--lp-text);
}

.lp-hero h1 span {
    background: var(--lp-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.lp-hero-desc {
    font-size: 1.2rem;
    color: var(--lp-text-secondary);
    margin-bottom: 40px;
    max-width: 520px;
}

.lp-hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.lp-hero-visual {
    position: relative;
}

.lp-hero-mockup {
    background: var(--lp-bg);
    border-radius: 20px;
    box-shadow: var(--lp-shadow-lg);
    padding: 24px;
    border: 1px solid var(--lp-border);
}

.lp-mockup-bar {
    display: flex;
    gap: 6px;
    margin-bottom: 16px;
}

.lp-mockup-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #e5e7eb;
}

.lp-mockup-dot:nth-child(1) { background: #ef4444; }
.lp-mockup-dot:nth-child(2) { background: #f59e0b; }
.lp-mockup-dot:nth-child(3) { background: #10b981; }

.lp-mockup-chat {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.lp-mockup-msg {
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 0.9rem;
    max-width: 85%;
    animation: fadeInUp 0.5s ease backwards;
}

.lp-mockup-msg:nth-child(1) { animation-delay: 0.3s; }
.lp-mockup-msg:nth-child(2) { animation-delay: 0.6s; }
.lp-mockup-msg:nth-child(3) { animation-delay: 0.9s; }
.lp-mockup-msg:nth-child(4) { animation-delay: 1.2s; }

.lp-mockup-user {
    background: var(--lp-primary);
    color: white;
    align-self: flex-end;
    border-bottom-right-radius: 4px;
}

.lp-mockup-ai {
    background: var(--lp-bg-alt);
    color: var(--lp-text);
    border: 1px solid var(--lp-border);
    border-bottom-left-radius: 4px;
}

.lp-mockup-source {
    display: inline-block;
    font-size: 0.75rem;
    padding: 2px 8px;
    background: rgba(99,102,241,0.1);
    color: var(--lp-primary);
    border-radius: 6px;
    margin-top: 6px;
}

.lp-hero-trust {
    display: flex;
    align-items: center;
    gap: 24px;
    margin-top: 48px;
    flex-wrap: wrap;
}

.lp-trust-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--lp-text-secondary);
}

.lp-trust-icon {
    font-size: 1.1rem;
}

/* ==================== Features ==================== */
.lp-features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.lp-feature-card {
    background: var(--lp-bg);
    border: 1px solid var(--lp-border);
    border-radius: var(--lp-radius);
    padding: 36px 28px;
    transition: all 0.3s ease;
}

.lp-feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--lp-shadow-lg);
    border-color: var(--lp-primary-light);
}

.lp-feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 20px;
    background: var(--lp-gradient-soft);
}

.lp-feature-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--lp-text);
}

.lp-feature-desc {
    font-size: 0.95rem;
    color: var(--lp-text-secondary);
    line-height: 1.65;
}

/* ==================== How it works ==================== */
.lp-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
    position: relative;
}

.lp-steps::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 16.66%;
    right: 16.66%;
    height: 2px;
    background: var(--lp-border);
    z-index: 0;
}

.lp-step {
    text-align: center;
    position: relative;
    z-index: 1;
}

.lp-step-num {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--lp-gradient);
    color: white;
    font-size: 1.75rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    box-shadow: 0 4px 14px rgba(99,102,241,0.3);
}

.lp-step-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
}

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

/* ==================== Security / Trust ==================== */
.lp-security-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    max-width: 900px;
    margin: 0 auto;
}

.lp-security-card {
    display: flex;
    gap: 16px;
    padding: 28px;
    background: var(--lp-bg);
    border: 1px solid var(--lp-border);
    border-radius: var(--lp-radius);
}

.lp-security-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.lp-security-title {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 6px;
}

.lp-security-desc {
    font-size: 0.9rem;
    color: var(--lp-text-secondary);
}

/* ==================== Pricing ==================== */
.lp-pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    max-width: 1000px;
    margin: 0 auto;
}

.lp-pricing-card {
    background: var(--lp-bg);
    border: 2px solid var(--lp-border);
    border-radius: 20px;
    padding: 40px 32px;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
}

.lp-pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--lp-shadow-lg);
}

.lp-pricing-card.popular {
    border-color: var(--lp-primary);
    box-shadow: 0 8px 30px rgba(99,102,241,0.15);
}

.lp-pricing-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--lp-gradient);
    color: white;
    padding: 4px 20px;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.lp-pricing-name {
    font-size: 1.35rem;
    font-weight: 800;
    margin-bottom: 8px;
}

.lp-pricing-desc {
    font-size: 0.9rem;
    color: var(--lp-text-secondary);
    margin-bottom: 28px;
}

.lp-pricing-price {
    font-size: 3rem;
    font-weight: 900;
    color: var(--lp-text);
    margin-bottom: 4px;
}

.lp-pricing-price span {
    font-size: 1rem;
    font-weight: 500;
    color: var(--lp-text-secondary);
}

.lp-pricing-annual {
    font-size: 0.85rem;
    color: var(--lp-secondary);
    font-weight: 600;
    margin-bottom: 32px;
}

.lp-pricing-features {
    list-style: none;
    text-align: left;
    margin-bottom: 36px;
}

.lp-pricing-features li {
    padding: 8px 0;
    font-size: 0.95rem;
    color: var(--lp-text-secondary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.lp-pricing-features li::before {
    content: '✓';
    color: var(--lp-secondary);
    font-weight: 700;
    font-size: 1rem;
    flex-shrink: 0;
}

.lp-pricing-cta {
    width: 100%;
    justify-content: center;
}

/* ==================== Testimonials ==================== */
.lp-testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.lp-testimonial {
    background: var(--lp-bg);
    border: 1px solid var(--lp-border);
    border-radius: var(--lp-radius);
    padding: 32px;
}

.lp-testimonial-stars {
    color: #f59e0b;
    font-size: 1.1rem;
    margin-bottom: 16px;
    letter-spacing: 2px;
}

.lp-testimonial-text {
    font-size: 0.95rem;
    color: var(--lp-text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
    font-style: italic;
}

.lp-testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.lp-testimonial-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--lp-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1rem;
}

.lp-testimonial-name {
    font-weight: 700;
    font-size: 0.95rem;
}

.lp-testimonial-role {
    font-size: 0.8rem;
    color: var(--lp-text-light);
}

/* ==================== CTA ==================== */
.lp-cta-section {
    background: var(--lp-gradient);
    padding: 80px 0;
    text-align: center;
    color: white;
}

.lp-cta-title {
    font-size: 2.25rem;
    font-weight: 800;
    margin-bottom: 16px;
}

.lp-cta-desc {
    font-size: 1.15rem;
    opacity: 0.9;
    max-width: 520px;
    margin: 0 auto 40px;
}

.lp-cta-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

/* ==================== Contact Form ==================== */
.lp-contact-form-wrapper {
    max-width: 600px;
    margin: 0 auto;
}

.lp-contact-form {
    background: rgba(255,255,255,0.12);
    backdrop-filter: blur(12px);
    border-radius: 20px;
    padding: 36px 32px;
    text-align: left;
}

.lp-form-row {
    display: flex;
    gap: 16px;
}

.lp-form-group {
    flex: 1;
    margin-bottom: 18px;
}

.lp-form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 6px;
    color: rgba(255,255,255,0.9);
}

.lp-form-group input,
.lp-form-group textarea,
.lp-form-group select {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid rgba(255,255,255,0.25);
    border-radius: 10px;
    background: rgba(255,255,255,0.1);
    color: white;
    font-size: 0.95rem;
    font-family: inherit;
    transition: border-color 0.2s;
    box-sizing: border-box;
}

.lp-form-group select option {
    background: #2d2d3f;
    color: white;
}

.lp-form-group input::placeholder,
.lp-form-group textarea::placeholder {
    color: rgba(255,255,255,0.4);
}

.lp-form-group input:focus,
.lp-form-group textarea:focus,
.lp-form-group select:focus {
    outline: none;
    border-color: rgba(255,255,255,0.6);
    background: rgba(255,255,255,0.15);
}

.lp-form-type-row {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.lp-form-radio {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    padding: 6px 14px;
    border-radius: 100px;
    border: 1.5px solid rgba(255,255,255,0.25);
    transition: all 0.2s;
    color: rgba(255,255,255,0.85);
}

.lp-form-radio:has(input:checked) {
    border-color: white;
    background: rgba(255,255,255,0.15);
    color: white;
}

.lp-form-radio input {
    display: none;
}

.lp-form-submit {
    width: 100%;
    font-size: 1.05rem;
    font-weight: 700;
    padding: 14px;
    cursor: pointer;
    border: none;
}

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

.lp-form-status {
    margin-top: 14px;
    padding: 12px 16px;
    border-radius: 10px;
    font-size: 0.9rem;
    text-align: center;
    font-weight: 600;
}

.lp-form-success {
    background: rgba(34,197,94,0.2);
    color: #bbf7d0;
    border: 1px solid rgba(34,197,94,0.3);
}

.lp-form-error {
    background: rgba(239,68,68,0.2);
    color: #fecaca;
    border: 1px solid rgba(239,68,68,0.3);
}

/* ==================== Footer ==================== */
.lp-footer {
    background: #1e1e2e;
    color: #a6adc8;
    padding: 64px 0 32px;
}

.lp-footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.lp-footer-brand {
    font-size: 1.3rem;
    font-weight: 800;
    color: white;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.lp-footer-desc {
    font-size: 0.9rem;
    line-height: 1.7;
    max-width: 320px;
}

.lp-footer-title {
    font-size: 0.9rem;
    font-weight: 700;
    color: white;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
}

.lp-footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.lp-footer-links a {
    color: #a6adc8;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.lp-footer-links a:hover { color: white; }

.lp-footer-bottom {
    border-top: 1px solid #313244;
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
}

/* ==================== Animations ==================== */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.lp-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.lp-animate.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ==================== Mobile hamburger ==================== */
.lp-mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--lp-text);
    padding: 4px;
}

/* ==================== Responsive ==================== */
@media (max-width: 1024px) {
    .lp-hero h1 { font-size: 2.5rem; }
    .lp-features-grid { grid-template-columns: repeat(2, 1fr); }
    .lp-pricing-grid { grid-template-columns: repeat(2, 1fr); }
    .lp-testimonials-grid { grid-template-columns: repeat(2, 1fr); }
    .lp-footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
    .lp-nav-links { display: none; }
    .lp-mobile-toggle { display: block; }

    .lp-nav-links.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: white;
        border-bottom: 1px solid var(--lp-border);
        padding: 16px 24px;
        gap: 16px;
        box-shadow: var(--lp-shadow);
    }

    .lp-nav-inner {
        gap: 8px;
    }

    .lp-nav-actions {
        gap: 6px;
        flex-shrink: 0;
    }

    .lp-lang-btn {
        padding: 4px 7px;
        font-size: 0.75rem;
    }

    .lp-btn-nav {
        padding: 6px 12px;
        font-size: 0.8rem;
        white-space: nowrap;
    }

    .lp-nav-logo {
        font-size: 1.1rem;
        gap: 6px;
        min-width: 0;
    }

    .lp-nav-logo svg {
        width: 32px;
        height: 32px;
    }

    .lp-hero { padding: 120px 0 64px; }
    .lp-hero-inner { grid-template-columns: 1fr; gap: 40px; }
    .lp-hero h1 { font-size: 2rem; }
    .lp-hero-visual { order: -1; }
    .lp-section { padding: 64px 0; }

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

    .lp-steps::before { display: none; }
    .lp-footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .lp-footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
    .lp-pricing-card.popular { order: -1; }

    .lp-form-row { flex-direction: column; gap: 0; }
    .lp-contact-form { padding: 28px 20px; }
    .lp-form-type-row { flex-direction: column; align-items: stretch; }
}

@media (max-width: 480px) {
    .lp-hero h1 { font-size: 1.75rem; }
    .lp-section-title { font-size: 1.75rem; }
    .lp-hero-actions { flex-direction: column; }
    .lp-hero-actions .lp-btn { width: 100%; justify-content: center; }
    .lp-cta-actions { flex-direction: column; align-items: center; }

    .lp-nav-logo {
        overflow: hidden;
        max-width: 44px;
    }

    .lp-lang-btn {
        padding: 3px 5px;
        font-size: 0.7rem;
    }

    .lp-btn-nav {
        padding: 5px 10px;
        font-size: 0.75rem;
    }
}