/* Mobile-First Responsive Styles */
* { box-sizing: border-box; }
body { overflow-x: hidden; max-width: 100vw; font-size: 14px; }
.container { width: 100%; padding: 0 1rem; margin: 0 auto; }
img, video { max-width: 100%; height: auto; }

/* Mobile Menu */
.mobile-menu-btn { display: block; cursor: pointer; z-index: 1002; background: none; border: none; color: var(--text-primary); }
.mobile-menu { position: fixed; top: 0; right: -100%; width: 280px; height: 100vh; background: var(--navbar-bg); backdrop-filter: blur(20px); transition: right 0.3s; z-index: 1001; padding: 80px 20px 20px; overflow-y: auto; box-shadow: -4px 0 20px rgba(0,0,0,0.3); }
.mobile-menu.active { right: 0; }
.mobile-menu ul { list-style: none; padding: 0; margin: 0; }
.mobile-menu ul li { margin-bottom: 15px; }
.mobile-menu ul li a { color: var(--text-primary); font-size: 16px; font-weight: 600; display: block; padding: 12px; border-radius: 8px; transition: all 0.3s; text-decoration: none; }
.mobile-menu ul li a:hover { background: rgba(37,99,235,0.2); color: #2563eb; }
.mobile-dropdown-menu { display: none; padding-right: 20px; margin-top: 10px; }
.mobile-dropdown-menu.active { display: block; }

/* Typography Mobile */
h1 { font-size: 2rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.5rem; }

/* 576px */
@media (min-width: 576px) {
    body { font-size: 15px; }
    .container { max-width: 540px; padding: 0 1.5rem; }
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
}

/* 768px */
@media (min-width: 768px) {
    body { font-size: 16px; }
    .container { max-width: 720px; }
    h1 { font-size: 3rem; }
    h2 { font-size: 2.5rem; }
    .mobile-menu-btn { display: none; }
}

/* 992px */
@media (min-width: 992px) {
    .container { max-width: 960px; }
    h1 { font-size: 3.5rem; }
}

/* 1200px */
@media (min-width: 1200px) {
    .container { max-width: 1140px; }
    h1 { font-size: 4rem; }
}

/* Mobile Overrides */
@media (max-width: 767px) {
    .text-6xl, .text-7xl, .text-8xl { font-size: 2.5rem !important; }
    .text-5xl { font-size: 2rem !important; }
    .text-4xl { font-size: 1.75rem !important; }
    .px-10 { padding-left: 1.5rem !important; padding-right: 1.5rem !important; }
    .gap-12 { gap: 2rem !important; }
    .mb-16 { margin-bottom: 2rem !important; }
}