/* ============================================
   EVALIS AI — NEXT-GEN DESIGN SYSTEM v2.0
   ============================================ */

/* --- Google Fonts Import --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Space+Grotesk:wght@400;500;600;700&display=swap');

/* --- CSS Custom Properties --- */
:root {
    --primary: #6366f1;
    --primary-light: #818cf8;
    --primary-dark: #4f46e5;
    --secondary: #a855f7;
    --accent: #06b6d4;
    --accent2: #f43f5e;
    --success: #10b981;
    --warning: #f59e0b;
    --bg-deep: #030712;
    --bg-dark: #0a0f1e;
    --bg-card: rgba(15, 23, 42, 0.6);
    --bg-card-hover: rgba(30, 41, 59, 0.8);
    --bg-glass: rgba(255, 255, 255, 0.03);
    --border: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(99, 102, 241, 0.4);
    --text: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --glow-primary: rgba(99, 102, 241, 0.15);
    --glow-accent: rgba(6, 182, 212, 0.15);
    --gradient-primary: linear-gradient(135deg, #6366f1, #a855f7);
    --gradient-accent: linear-gradient(135deg, #06b6d4, #6366f1);
    --gradient-warm: linear-gradient(135deg, #f43f5e, #f59e0b);
    --gradient-mesh: radial-gradient(ellipse at 20% 0%, rgba(99,102,241,0.12) 0%, transparent 50%),
                     radial-gradient(ellipse at 80% 100%, rgba(168,85,247,0.08) 0%, transparent 50%),
                     radial-gradient(ellipse at 50% 50%, rgba(6,182,212,0.05) 0%, transparent 60%);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.15);
    --shadow-hover: 0 20px 60px rgba(0, 0, 0, 0.4);
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--bg-deep);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* --- Scrollbar --- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(99,102,241,0.3); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(99,102,241,0.5); }

/* --- Mesh Background --- */
.mesh-bg {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: -2;
    background: var(--gradient-mesh);
    pointer-events: none;
}

/* --- Particle Canvas Overlay --- */
#particles-canvas {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: -1;
    pointer-events: none;
}

/* ============================================
   NAVIGATION
   ============================================ */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem 6%;
    background: rgba(3, 7, 18, 0.8);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

nav.scrolled {
    background: rgba(3, 7, 18, 0.95);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-img {
    height: 36px;
    width: auto;
    display: block;
    filter: drop-shadow(0 0 8px rgba(99, 102, 241, 0.3));
}

.logo-text {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 1.4rem;
    color: #fff !important;
    letter-spacing: -0.5px;
}

.logo-text .ai-badge {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    position: relative;
}

.nav-links a:hover {
    color: #fff;
    background: rgba(99, 102, 241, 0.1);
}

.nav-links a.active {
    color: var(--primary-light);
}

.btn-nav {
    background: var(--gradient-primary) !important;
    color: #fff !important;
    font-weight: 600 !important;
    padding: 10px 20px !important;
    border-radius: var(--radius-md) !important;
    border: none !important;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
    transition: var(--transition) !important;
}

.btn-nav:hover {
    transform: translateY(-2px) !important;
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4) !important;
}

/* Mobile Menu */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 8px;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    transition: left 0.5s;
}

.btn:hover::before { left: 100%; }

.btn-primary {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.5);
}

.btn-outline {
    background: transparent;
    color: var(--primary-light);
    border: 1px solid rgba(99, 102, 241, 0.3);
}

.btn-outline:hover {
    background: rgba(99, 102, 241, 0.1);
    border-color: var(--primary-light);
    transform: translateY(-2px);
}

.btn-accent {
    background: var(--gradient-accent);
    color: #fff;
    box-shadow: 0 4px 20px rgba(6, 182, 212, 0.3);
}

.btn-whatsapp {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, #25D366, #128C7E);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 0.9rem;
    transition: var(--transition);
}

.btn-whatsapp:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.3);
}

/* ============================================
   CARDS
   ============================================ */
.card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    padding: 2rem;
    border-radius: var(--radius-lg);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 2px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.4s;
}

.card:hover {
    transform: translateY(-8px);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-glow);
}

.card:hover::before { opacity: 1; }

.card h3 {
    font-family: 'Space Grotesk', sans-serif;
    margin-bottom: 0.8rem;
    color: #fff;
    font-size: 1.2rem;
}

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

.card-icon {
    width: 56px; height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1.2rem;
    background: var(--glow-primary);
    border: 1px solid rgba(99, 102, 241, 0.2);
}

/* ============================================
   SECTION LAYOUTS
   ============================================ */
section {
    padding: 100px 6%;
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: var(--glow-primary);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--primary-light);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1.2rem;
}

h1 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

h2 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -0.5px;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; }

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    padding: 120px 6% 80px;
    text-align: center;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 2.5rem;
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.hero-banner {
    width: 100%;
    max-width: 1000px;
    margin: 0 auto;
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-card), var(--shadow-glow);
    position: relative;
}

.hero-banner img { width: 100%; display: block; }

/* ============================================
   STATS BAR
   ============================================ */
.stats-bar {
    display: flex;
    justify-content: center;
    gap: 3rem;
    padding: 2rem 0;
    flex-wrap: wrap;
}

.stat-item { text-align: center; }

.stat-number {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ============================================
   MARQUEE / TICKER
   ============================================ */
.marquee-container {
    overflow: hidden;
    padding: 1.5rem 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    background: rgba(15, 23, 42, 0.4);
}

.marquee-track {
    display: flex;
    gap: 3rem;
    animation: marquee 30s linear infinite;
    width: max-content;
}

.marquee-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 500;
    white-space: nowrap;
}

@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* ============================================
   TESTIMONIALS
   ============================================ */
.testimonial-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    position: relative;
}

.testimonial-card .quote {
    font-size: 1rem;
    color: var(--text-secondary);
    font-style: italic;
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

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

.author-avatar {
    width: 44px; height: 44px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
    color: #fff;
}

/* ============================================
   PRICING
   ============================================ */
.pricing-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    text-align: center;
    transition: var(--transition);
    position: relative;
}

.pricing-card.featured {
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
}

.pricing-card.featured::before {
    content: 'POPULAR';
    position: absolute;
    top: -12px; left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    padding: 4px 16px;
    border-radius: 100px;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 1px;
}

.price {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 3rem;
    font-weight: 800;
    margin: 1rem 0;
}

.price span { font-size: 1rem; color: var(--text-muted); font-weight: 400; }

/* ============================================
   FOOTER
   ============================================ */
footer {
    border-top: 1px solid var(--border);
    background: rgba(3, 7, 18, 0.6);
    backdrop-filter: blur(20px);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    max-width: 1400px;
    margin: 0 auto;
    padding: 60px 6% 40px;
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 1rem;
    max-width: 300px;
}

.footer-col h4 {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text);
    margin-bottom: 1.2rem;
}

.footer-col a {
    display: block;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    padding: 4px 0;
    transition: var(--transition);
}

.footer-col a:hover { color: var(--primary-light); transform: translateX(4px); }

.footer-bottom {
    border-top: 1px solid var(--border);
    padding: 1.5rem 6%;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.8rem;
    max-width: 1400px;
    margin: 0 auto;
}

.social-links {
    display: flex;
    gap: 12px;
    margin-top: 1.5rem;
}

.social-links a {
    width: 40px; height: 40px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 1rem;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--glow-primary);
    border-color: var(--primary);
    color: var(--primary-light);
    transform: translateY(-3px);
}

/* ============================================
   FORM ELEMENTS
   ============================================ */
.form-group { margin-bottom: 1.2rem; }

label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
}

input, select, textarea {
    width: 100%;
    padding: 14px 18px;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: #fff;
    font-family: inherit;
    font-size: 0.95rem;
    transition: var(--transition);
    outline: none;
}

input:focus, select:focus, textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

input::placeholder, textarea::placeholder { color: var(--text-muted); }
textarea { min-height: 120px; resize: vertical; }
select option { background: var(--bg-dark); }

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

@keyframes pulse-glow {
    0%, 100% { box-shadow: 0 0 20px rgba(99,102,241,0.2); }
    50% { box-shadow: 0 0 40px rgba(99,102,241,0.4); }
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

@keyframes gradient-shift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.float-animation { animation: float 4s ease-in-out infinite; }
.pulse-glow { animation: pulse-glow 3s ease-in-out infinite; }

.shimmer-bg {
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.03), transparent);
    background-size: 200% 100%;
    animation: shimmer 3s infinite;
}

/* ============================================
   AI CHATBOT WIDGET
   ============================================ */
.ai-chat-widget {
    position: fixed;
    bottom: 24px; right: 24px;
    z-index: 9999;
}

.ai-chat-btn {
    width: 60px; height: 60px;
    border-radius: 50%;
    background: var(--gradient-primary);
    border: none;
    color: #fff;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.4);
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.ai-chat-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 12px 40px rgba(99, 102, 241, 0.5);
}

.ai-chat-btn .pulse-ring {
    position: absolute;
    width: 100%; height: 100%;
    border-radius: 50%;
    border: 2px solid var(--primary);
    animation: pulse-glow 2s infinite;
}

.chat-panel {
    position: absolute;
    bottom: 70px; right: 0;
    width: 380px;
    max-height: 500px;
    background: rgba(10, 15, 30, 0.95);
    backdrop-filter: blur(24px);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-hover);
    display: none;
    flex-direction: column;
    overflow: hidden;
}

.chat-panel.open { display: flex; }

.chat-header {
    padding: 1rem 1.2rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    max-height: 340px;
}

.chat-input-area {
    padding: 0.8rem;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 8px;
}

.chat-input-area input {
    flex: 1;
    padding: 10px 14px;
    font-size: 0.85rem;
}

.chat-input-area button {
    padding: 10px 16px;
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-sm);
    color: #fff;
    font-weight: 600;
    cursor: pointer;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    nav { padding: 0.8rem 4%; }
    .menu-toggle { display: block; }
    .nav-links {
        display: none;
        position: absolute;
        top: 100%; left: 0; right: 0;
        background: rgba(3, 7, 18, 0.98);
        backdrop-filter: blur(24px);
        flex-direction: column;
        padding: 1rem;
        border-bottom: 1px solid var(--border);
    }
    .nav-links.open { display: flex; }
    .nav-links a { padding: 12px 16px; width: 100%; }

    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
    section { padding: 60px 5%; }
    .hero { padding: 80px 5% 50px; }
    h1 { font-size: clamp(2rem, 8vw, 3rem); }
    .stats-bar { gap: 2rem; }
    .chat-panel { width: 320px; right: -10px; }
}

@media (max-width: 480px) {
    .hero-cta { flex-direction: column; align-items: center; }
    .btn { width: 100%; justify-content: center; }
}