:root {
    --bg-color: #050505;
    --card-bg: #121212;
    --accent-color: #0071e3;
    --text-primary: #f5f5f7;
    --text-secondary: #86868b;
    --gradient: linear-gradient(135deg, #0071e3 0%, #00d4ff 100%);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.5;
    overflow-x: hidden;
}

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

/* Navbar */
.navbar {
    height: 60px;
    display: flex;
    align-items: center;
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(5, 5, 5, 0.8);
    backdrop-filter: blur(20px);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
}

.logo span {
    color: var(--accent-color);
}

.nav-links {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-primary);
    font-size: 0.9rem;
    transition: 0.3s;
}

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

/* Buttons */
.btn-primary {
    background: var(--gradient);
    color: white !important;
    padding: 12px 25px;
    border-radius: 50px;
    font-weight: 600;
    transition: transform 0.2s, box-shadow 0.2s;
    border: none;
    cursor: pointer;
    display: inline-block;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 113, 227, 0.3);
}

.btn-secondary {
    border: 1px solid var(--text-secondary);
    color: var(--text-primary);
    padding: 12px 25px;
    border-radius: 50px;
    text-decoration: none;
    transition: 0.3s;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Hero */
.hero {
    padding: 180px 0 100px;
    text-align: center;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 20px;
    letter-spacing: -2px;
}

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

.hero p {
    font-size: 1.5rem;
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto 40px;
}

.hero-btns {
    display: flex;
    justify-content: center;
    gap: 20px;
}

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

h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 60px;
    letter-spacing: -1px;
}

/* Pains */
.pains-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.pain-card {
    background: var(--card-bg);
    padding: 40px;
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: 0.3s;
}

.pain-card:hover {
    border-color: rgba(255, 255, 255, 0.2);
}

.pain-card i {
    font-size: 2rem;
    color: #ff3b30;
    margin-bottom: 20px;
}

.pain-card h3 {
    margin-bottom: 15px;
}

.pain-card p {
    color: var(--text-secondary);
}

/* Triad Solutions */
.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

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

.icon-box {
    width: 80px;
    height: 80px;
    background: rgba(0, 113, 227, 0.1);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
}

.icon-box i {
    font-size: 2rem;
    color: var(--accent-color);
}

/* IA Demo */
.ia-content {
    display: flex;
    align-items: center;
    gap: 60px;
    background: linear-gradient(135deg, #121212 0%, #1a1a1a 100%);
    padding: 60px;
    border-radius: 40px;
}

.ia-text h2 {
    text-align: left;
    margin-bottom: 20px;
}

.features-list {
    list-style: none;
    margin-top: 30px;
}

.features-list li {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.features-list i {
    color: #34c759;
}

.chat-window {
    width: 350px;
    background: #000;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 30px 60px rgba(0,0,0,0.5);
}

.chat-header {
    padding: 15px;
    background: #222;
    text-align: center;
    font-size: 0.8rem;
    font-weight: 600;
}

.chat-body {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.msg {
    padding: 10px 15px;
    border-radius: 15px;
    font-size: 0.9rem;
    max-width: 85%;
}

.bot {
    background: #262629;
    align-self: flex-start;
}

.user {
    background: var(--accent-color);
    align-self: flex-end;
}

/* Contact */
.contact-card {
    background: white;
    color: #000;
    max-width: 600px;
    margin: 0 auto;
    padding: 60px;
    border-radius: 40px;
    text-align: center;
}

.contact-card h2 {
    margin-bottom: 10px;
}

.contact-card p {
    color: #666;
    margin-bottom: 40px;
}

.form-group {
    margin-bottom: 15px;
}

input {
    width: 100%;
    padding: 18px;
    border-radius: 12px;
    border: 1px solid #ddd;
    background: #f5f5f7;
    font-size: 1rem;
}

.full-width {
    width: 100%;
    margin-top: 20px;
}

/* Footer */
footer {
    padding: 40px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.8rem;
}

@media (max-width: 768px) {
    .hero h1 { font-size: 2.5rem; }
    .ia-content { flex-direction: column; padding: 30px; }
    .chat-window { width: 100%; }
    .nav-links { display: none; }
}