/* ==========================================================================
   CSS Variables & Reset
   ========================================================================== */
:root {
    --bg-main: #0f172a;        /* Slate 900 */
    --bg-darker: #020617;      /* Slate 950 */
    --bg-panel: rgba(30, 41, 59, 0.7); /* Slate 800 with opacity */
    
    --accent-color: #10b981;   /* Emerald 500 */
    --accent-hover: #059669;   /* Emerald 600 */
    --accent-glow: rgba(16, 185, 129, 0.4);
    
    --text-primary: #f8fafc;   /* Slate 50 */
    --text-secondary: #cbd5e1; /* Slate 300 */
    --text-muted: #94a3b8;     /* Slate 400 */
    
    --border-color: rgba(255, 255, 255, 0.1);
    
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --info: #3b82f6;
    
    --font-main: 'Inter', sans-serif;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-padding {
    padding: 100px 0;
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-accent { color: var(--accent-color); }
.text-danger { color: var(--danger); }
.bg-darker { background-color: var(--bg-darker); }
.mb-3 { margin-bottom: 1rem; }
.mb-5 { margin-bottom: 3rem; }
.mt-4 { margin-top: 2rem; }
.border-top { border-top: 1px solid var(--border-color); }

/* Glassmorphism panel utility */
.glass-panel {
    background: var(--bg-panel);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

/* ==========================================================================
   Typography
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.section-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 3rem auto;
}

.text-gradient {
    background: linear-gradient(90deg, #34d399, #059669);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--accent-color);
    color: #fff;
    box-shadow: 0 4px 15px var(--accent-glow);
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--accent-glow);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

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

.btn-outline:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-block {
    width: 100%;
}

/* ==========================================================================
   Header & Nav
   ========================================================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition);
    padding: 20px 0;
}

.site-header.scrolled {
    background: rgba(2, 6, 23, 0.9);
    backdrop-filter: blur(10px);
    padding: 15px 0;
    border-bottom: 1px solid var(--border-color);
}

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

.logo a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 800;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-secondary);
    font-weight: 500;
    transition: var(--transition);
}

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

.header-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    position: relative;
    padding: 160px 0 100px;
    overflow: hidden;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.glow-effect {
    position: absolute;
    width: 500px;
    height: 500px;
    background: var(--accent-color);
    filter: blur(150px);
    border-radius: 50%;
    opacity: 0.15;
    z-index: -1;
}

.glow-top-left {
    top: -100px;
    left: -100px;
}

.glow-bottom-right {
    bottom: -100px;
    right: -100px;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.hero-trust {
    display: flex;
    gap: 1.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.hero-image-wrapper {
    position: relative;
}

.mockup-panel {
    padding: 10px;
    transform: perspective(1000px) rotateY(-10deg) rotateX(5deg);
    transition: transform 0.5s ease;
}

.mockup-panel:hover {
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

.hero-mockup-img {
    width: 100%;
    border-radius: 8px;
    display: block;
}

/* ==========================================================================
   Social Proof
   ========================================================================== */
.social-proof {
    padding: 40px 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-darker);
}

.social-proof-text {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.logos-grid {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
    color: var(--text-secondary);
    font-size: 1.25rem;
    font-weight: 600;
}

.logo-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    opacity: 0.6;
    transition: var(--transition);
}

.logo-item:hover {
    opacity: 1;
    color: var(--text-primary);
}

/* ==========================================================================
   Features Grid
   ========================================================================== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    padding: 2rem;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.hover-scale:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
}

.feature-icon {
    width: 50px;
    height: 50px;
    background: rgba(16, 185, 129, 0.1);
    color: var(--accent-color);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

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

/* ==========================================================================
   Demo / Mappa 2D Section
   ========================================================================== */
.demo-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.legend-list {
    margin-top: 2rem;
}

.legend-list li {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.dot {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    display: inline-block;
}

.dot-free { background-color: var(--success); }
.dot-occupied { background-color: var(--danger); }
.dot-booked { background-color: var(--info); }
.dot-merged { background-color: #8b5cf6; } /* Purple for merged */

.interactive-map {
    width: 100%;
    aspect-ratio: 4/3;
    position: relative;
    padding: 2rem;
    background: #1e293b url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI0MCIgaGVpZ2h0PSI0MCI+PHBhdGggZD0iTTQwIDBoLTQwdi00MGg0MHoiIGZpbGw9Im5vbmUiLz48cGF0aCBkPSJNMCAwaDQwdjQwaC00MHoiIGZpbGw9Im5vbmUiLz48cGF0aCBkPSJNMCAwdjQwaDQwdi00MGgtNDB6bTM5IDM5aC0zOHYtMzhoMzh2Mzh6IiBmaWxsPSIjMzMzIiBmaWxsLW9wYWNpdHk9IjAuMSIvPjwvc3ZnPg==') repeat;
}

/* CSS Mockup Tables */
.table {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: #fff;
    box-shadow: 0 4px 6px rgba(0,0,0,0.3);
    transition: all 0.3s ease;
    cursor: pointer;
    text-align: center;
    line-height: 1.2;
}

.table:hover {
    transform: scale(1.05);
}

.table small {
    font-size: 0.7rem;
    font-weight: 400;
    opacity: 0.8;
}

.t-circle { border-radius: 50%; width: 60px; height: 60px; }
.t-square { border-radius: 8px; width: 60px; height: 60px; }
.t-rect { border-radius: 8px; width: 100px; height: 60px; }

.free { background-color: var(--success); }
.occupied { background-color: var(--danger); }
.booked { background-color: var(--info); }
.merged { background-color: #8b5cf6; }

/* Positioning for demo */
.table:nth-child(1) { top: 15%; left: 15%; }
.table:nth-child(2) { top: 15%; left: 45%; }
.table:nth-child(3) { top: 50%; left: 15%; }
.table:nth-child(4) { top: 80%; left: 15%; }

/* Merged table visual trick */
.m-left { top: 50%; left: 55%; width: 70px; border-top-right-radius: 0; border-bottom-right-radius: 0; border-right: 1px dashed rgba(255,255,255,0.5); }
.m-right { top: 50%; left: calc(55% + 70px); width: 70px; border-top-left-radius: 0; border-bottom-left-radius: 0; }


/* ==========================================================================
   Comparison Section
   ========================================================================== */
.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 3rem;
    text-align: left;
}

.comparison-card {
    padding: 2.5rem;
}

.comp-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
    font-size: 1.5rem;
}

.highlight-border {
    border: 2px solid var(--accent-color);
    box-shadow: 0 0 30px rgba(16, 185, 129, 0.15);
}

.comp-list li {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 1.05rem;
}

/* ==========================================================================
   How It Works (Steps)
   ========================================================================== */
.steps-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 4rem;
    gap: 1rem;
}

.step-box {
    flex: 1;
    padding: 2rem 1.5rem;
    text-align: center;
    position: relative;
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--bg-main);
    border: 2px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    margin: 0 auto 1.5rem auto;
}

.highlight-step .step-number {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: #fff;
}

.step-box h3 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.step-box p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.step-connector {
    color: var(--border-color);
    font-size: 1.5rem;
}

/* ==========================================================================
   Testimonials
   ========================================================================== */
.testimonials-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 3rem;
}

.testimonial-card {
    padding: 2.5rem;
}

.stars {
    color: #fbbf24; /* Amber 400 */
    margin-bottom: 1rem;
}

.quote {
    font-size: 1.1rem;
    font-style: italic;
    margin-bottom: 2rem;
    color: var(--text-secondary);
}

.author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
}

.author-info span {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ==========================================================================
   Pricing
   ========================================================================== */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(2, max-content);
    justify-content: center;
    gap: 2rem;
}

.pricing-card {
    padding: 3rem 2.5rem;
    width: 350px;
    position: relative;
}

.featured-plan {
    border: 1px solid var(--accent-color);
    transform: scale(1.05);
}

.plan-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-color);
    color: #fff;
    padding: 0.25rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.pricing-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.price {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

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

.plan-desc {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.plan-features li {
    margin-bottom: 1rem;
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

/* ==========================================================================
   FAQ Accordion
   ========================================================================== */
.accordion {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.accordion-item {
    overflow: hidden;
}

.accordion-header {
    width: 100%;
    text-align: left;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 600;
    font-family: inherit;
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.accordion-header i {
    transition: transform 0.3s ease;
}

.accordion-header[aria-expanded="true"] i {
    transform: rotate(180deg);
}

.accordion-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    padding: 0 1.5rem;
}

.accordion-body p {
    color: var(--text-secondary);
    padding-bottom: 1.5rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer-container {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    padding: 60px 20px 40px;
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    max-width: 300px;
}

.footer-links h4 {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
}

.footer-links ul li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: var(--text-secondary);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--accent-color);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.9rem;
}

.social-icons {
    display: flex;
    gap: 1rem;
}

.social-icons a {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255,255,255,0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.social-icons a:hover {
    background: var(--accent-color);
    color: #fff;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (max-width: 992px) {
    .hero-container, .demo-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .hero-trust {
        justify-content: center;
    }

    .steps-container {
        flex-direction: column;
    }

    .step-connector {
        transform: rotate(90deg);
        margin: 1rem 0;
    }

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

    .featured-plan {
        transform: none;
    }
}

@media (max-width: 768px) {
    .nav-links, .login-btn {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .comparison-grid, .testimonials-grid, .footer-container {
        grid-template-columns: 1fr;
    }

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

    .section-title {
        font-size: 2rem;
    }

    .hero-cta {
        flex-direction: column;
    }
}