:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --emerald: #10b981;
    --slate-900: #0f172a;
    --slate-600: #475569;
    --slate-50: #f8fafc;
    --white: #ffffff;
}

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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--slate-900);
    overflow-x: hidden;
}

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

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #e2e8f0;
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(to right, var(--primary), var(--emerald));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links a {
    text-decoration: none;
    color: var(--slate-600);
    font-weight: 500;
    margin-left: 2rem;
    transition: color 0.3s;
}

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

.nav-cta {
    background: var(--primary);
    color: white !important;
    padding: 0.5rem 1.25rem;
    border-radius: 99px;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
}

/* Mobile Menu Styling */
.mobile-menu {
    display: flex;
    flex-direction: column;
    background: white;
    padding: 1rem 20px;
    border-top: 1px solid #e2e8f0;
}

.mobile-menu a {
    text-decoration: none;
    color: var(--slate-900);
    padding: 12px 0;
    border-bottom: 1px solid #f1f5f9;
}

.hidden { display: none; }

/* Hero */
.hero {
    padding: 160px 20px 100px;
    background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%);
    color: white;
    text-align: center;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
}

.hero .highlight {
    color: var(--emerald);
}

.hero p {
    font-size: 1.25rem;
    max-width: 700px;
    margin: 0 auto 2.5rem;
    color: #cbd5e1;
}

.hero-btns {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.btn {
    padding: 0.8rem 2rem;
    border-radius: 99px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
}

.btn-primary {
    background: var(--emerald);
    color: white;
}

.btn-secondary {
    background: rgba(255,255,255,0.1);
    color: white;
    border: 1px solid rgba(255,255,255,0.3);
}

/* Sections */
.section {
    padding: 100px 0;
}

.bg-alt { background: var(--slate-50); }
.bg-blue { 
background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%);
color: white; 
}

.flex-row {
    display: flex;
    align-items: center;
    gap: 60px;
}

.flex-row-reverse {
    display: flex;
    flex-direction: row-reverse;
    align-items: center;
    gap: 60px;
}

.content-text { flex: 1; }
.content-image { flex: 1; }

.content-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1);
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    position: relative;
}

h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--primary);
    margin-top: 10px;
    border-radius: 2px;
}

.centered h2::after { margin: 10px auto; }
.centered { text-align: center; max-width: 800px; margin: 0 auto; }

/* Lists */
.check-list, .bullet-list {
    margin: 20px 0;
    list-style: none;
}

.check-list li::before {
    content: '✓';
    color: var(--emerald);
    font-weight: bold;
    margin-right: 10px;
}

.bullet-list li::before {
    content: '•';
    color: var(--primary);
    font-size: 1.5rem;
    line-height: 1;
    margin-right: 10px;
    vertical-align: middle;
}

/* Info Cards */
.info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 30px;
}

.info-card {
    background: white;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
    border: 1px solid #f1f5f9;
}

.info-card h4 { color: var(--primary); margin-bottom: 5px; }

/* Chat Assistant */
.chat-container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    border-radius: 24px;
    box-shadow: 0 25px 50px -12px rgba(0,0,0,0.1);
    overflow: hidden;
    border: 1px solid #e2e8f0;
}

.chat-header {
    background: var(--primary);
    color: white;
    padding: 25px;
    text-align: center;
}

.chat-box {
    height: 400px;
    padding: 20px;
    overflow-y: auto;
    background: #f8fafc;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.msg {
    max-width: 80%;
    padding: 12px 20px;
    border-radius: 18px;
    font-size: 0.95rem;
}

.msg.bot {
    align-self: flex-start;
    background: white;
    border-bottom-left-radius: 4px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

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

.chat-input-area {
    padding: 20px;
    display: flex;
    gap: 10px;
    border-top: 1px solid #e2e8f0;
}

.chat-input-area input {
    flex: 1;
    padding: 12px 20px;
    border: 1px solid #cbd5e1;
    border-radius: 12px;
    outline: none;
}

.chat-input-area button {
    background: var(--primary);
    color: white;
    border: none;
    padding: 0 25px;
    border-radius: 12px;
    cursor: pointer;
    font-weight: 600;
}

/* Footer */
.footer {
    background: var(--slate-900);
    color: #94a3b8;
    padding: 40px 0;
    text-align: center;
}

/* Responsive */
@media (max-width: 968px) {
    .hero h1 { font-size: 2.5rem; }
    .flex-row, .flex-row-reverse {
        flex-direction: column;
        gap: 40px;
    }
    .desktop-menu { display: none; }
    .menu-toggle { display: block; }
    .nav-links.desktop-menu { display: none; }
    .info-grid { grid-template-columns: 1fr; }
}