/* --- GLOBAL STYLES --- */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Inter', sans-serif; line-height: 1.6; color: #334155; overflow-x: hidden; background-color: #ffffff; }

.container { width: 90%; max-width: 1200px; margin: auto; }
section { padding: 80px 0; }
.section-light { background: #f8fafc; }
.section-dark { background: #0f172a; color: white; }
.section-white { background: #ffffff; }
.text-center { text-align: center; }

/* --- NAVIGATION & LOGO --- */
nav { display: flex; justify-content: space-between; align-items: center; padding: 15px 5%; background: #fff; border-bottom: 1px solid #e2e8f0; position: sticky; top: 0; z-index: 1000; }
.nav-logo { height: 65px; width: auto; display: block; }
.nav-links { display: flex; align-items: center; gap: 20px; }
.nav-links a { text-decoration: none; color: #475569; font-weight: 600; font-size: 0.9rem; }
.highlight-link { color: #2563eb !important; }
.btn-nav { background: #0f172a; color: white !important; padding: 10px 18px; border-radius: 6px; }

/* --- HERO SECTION --- */
.hero {
    min-height: 80vh; display: flex; align-items: center; justify-content: center;
    background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?auto=format&fit=crop&w=1920&q=80') center/cover;
    position: relative; color: white; text-align: center; padding: 140px 20px 80px 20px;
}
.hero h1 { font-size: clamp(2rem, 5vw, 4rem); line-height: 1.1; margin-bottom: 25px; font-weight: 800; }
.highlight { color: #3b82f6; }
.hero-subtext { font-size: 1.2rem; margin-bottom: 40px; opacity: 0.9; }

/* --- PROBLEM & PERSONA BOXES --- */
.problem-split, .grid-3 { display: flex; gap: 2rem; margin-top: 3rem; }
.problem-box, .persona-card { flex: 1; padding: 2.5rem; border-radius: 20px; box-shadow: 0 4px 20px rgba(0,0,0,0.05); text-align: left; background: #fff; }
.user-side { border-top: 6px solid #e11d48; background: #fff1f2; }
.business-side { border-top: 6px solid #2563eb; background: #eff6ff; }
.persona-card { text-align: center; transition: transform 0.3s ease; }
.persona-card:hover { transform: translateY(-5px); }
.persona-icon { font-size: 3rem; margin-bottom: 15px; }

/* --- UX JOURNEY FLOW --- */
.ux-flow { display: flex; gap: 30px; margin-top: 40px; justify-content: center; }
.ux-step { flex: 1; position: relative; padding: 20px; }
.ux-number { width: 50px; height: 50px; background: #2563eb; color: white; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; font-weight: 800; font-size: 1.2rem; }

/* --- SOLUTION CARDS - NO WHITE BOXES --- */
.feature-card { background: #1e293b; border-radius: 16px; overflow: hidden; height: 100%; border: 1px solid rgba(255,255,255,0.05); }
.img-container { width: 100%; height: 240px; display: flex; align-items: center; justify-content: center; padding: 10px; }
.img-container img { width: 100%; height: 100%; object-fit: contain; }
.feature-text { padding: 25px; }
.feature-text h3 { color: #3b82f6; margin-bottom: 10px; font-size: 1.25rem; }

/* --- FOOTER & BUTTONS --- */
.btn-primary { background: #2563eb; color: white; padding: 15px 30px; border-radius: 8px; text-decoration: none; font-weight: 700; border: none; cursor: pointer; }
.btn-secondary { border: 2px solid white; color: white; padding: 15px 30px; border-radius: 8px; text-decoration: none; font-weight: 700; }
.footer-cta { background: #000; color: white; padding: 100px 0; text-align: center; }
.contact-form { margin-top: 40px; display: flex; flex-direction: column; align-items: center; gap: 15px; }
.contact-form input { padding: 15px; border-radius: 8px; border: none; width: 300px; max-width: 100%; }
.main-footer { background: #000; color: #555; padding: 40px 0; text-align: center; font-size: 0.8rem; border-top: 1px solid #222; }

/* --- MOBILE RESPONSIVENESS --- */
@media (max-width: 768px) {
    nav { flex-direction: column; padding: 20px; height: auto; }
    .nav-links { flex-direction: column; width: 100%; gap: 12px; margin-top: 15px; }
    .hero { padding-top: 180px; }
    .problem-split, .grid-3, .ux-flow { flex-direction: column; }
}