/* ===== CSS RESET & BASE ===== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #3A6EA5;
    --primary-dark: #2d5a87;
    --primary-light: #E8F4FF;
    --accent: #673de6;
    --dark: #0d141a;
    --dark-navy: #1A1A2E;
    --gray: #56585e;
    --gray-light: #f2f3f6;
    --white: #ffffff;
    --font-primary: 'Open Sans', sans-serif;
    --header-height: 90px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

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

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

/* ===== HEADER ===== */
.header { position: fixed; top:0; left:0; width:100%; z-index:1000; background:rgba(255,255,255,0.95); backdrop-filter:blur(20px); }
.header-inner { max-width:1280px; margin:0 auto; padding:0 24px; display:flex; justify-content:space-between; height:var(--header-height); }

/* ===== NAV ===== */
.nav-links { display:flex; gap:8px; }
.nav-links a { padding:10px 20px; border-radius:8px; }

/* ===== HERO ===== */
.hero { width:100%; height:100vh; margin-top:var(--header-height); }

/* ===== BUTTON ===== */
.btn { padding:15px 36px; border-radius:50px; cursor:pointer; }

/* ===== STATS ===== */
.stats-section { background:linear-gradient(135deg,#0d141a,#1A1A2E); }

/* ===== ABOUT ===== */
.about-section { padding:100px 0; }

/* ===== SERVICES ===== */
.services-section { padding:100px 0; }

/* ===== BLOG ===== */
.blog-section { padding:120px 0; }

/* ===== TESTIMONIALS ===== */
.premium-testimonials { padding:140px 0; }

/* ===== WHATSAPP ===== */
.whatsapp-float {
    position: fixed;
    bottom: 28px;
    right: 28px;
    width: 60px;
    height: 60px;
    background: #25D366;
    border-radius: 50%;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeSlideUp {
    to { opacity:1; transform:translateY(0); }
}

/* ===== RESPONSIVE ===== */
@media (max-width:768px){
    .nav-links { flex-direction:column; }
    .services-grid { grid-template-columns:1fr; }
}