:root {
    --yellow: #f1c40f;
    --blue: #2980b9;
    --blue-dark: #0f1c30;
    --white: #ffffff;
    --black: #000000;
    --font-ui: 'Montserrat', 'Helvetica', sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: var(--font-ui); background: #fdfdfd; color: var(--black); line-height: 1.6; font-size: 16px; border: 15px solid var(--black); min-height: 100vh; overflow-x:hidden;}
h1, h2, h3, h4 { font-weight: 900; line-height: 1.1; text-transform: uppercase; letter-spacing: -1px; }
a { text-decoration: none; color: var(--black); }
.container { max-width: 1200px; margin: 0 auto; padding: 0 4%; }

/* Brutalist Header */
header { background: var(--yellow); border-bottom: 5px solid var(--black); padding: 20px 0; }
.header-flex { display: flex; justify-content: space-between; align-items: center; }
.logo-block { font-size: 30px; font-weight: 900; background: var(--white); border: 4px solid var(--black); padding: 10px 20px; box-shadow: 4px 4px 0px var(--black); display: inline-flex; align-items: center; gap: 10px;}
.nav-links { display: flex; gap: 25px; }
.nav-links a { font-weight: 800; font-size: 18px; border: 3px solid transparent; padding: 5px 15px; }
.nav-links a:hover { background: var(--black); color: var(--yellow); border-color: var(--black); }

/* Buttons */
.btn-brutal { background: var(--blue); color: var(--white); font-weight: 900; font-size: 18px; padding: 15px 35px; border: 4px solid var(--black); box-shadow: 6px 6px 0px var(--black); text-transform: uppercase; display: inline-block; transition: 0.1s; cursor: pointer; }
.btn-brutal:hover { transform: translate(4px, 4px); box-shadow: 2px 2px 0px var(--black); }
.btn-brutal.yellow { background: var(--yellow); color: var(--black); }

/* Blocks */
.pad { padding: 100px 0; }
.brutal-grid { display: grid; grid-template-columns: 1fr 1fr; border: 5px solid var(--black); }
.b-card { padding: 60px; border: 5px solid var(--black); background: var(--white); box-shadow: 10px 10px 0px var(--black); margin-bottom: 40px; }

/* SVG Hero Split */
.hero { display: flex; min-height: 70vh; border-bottom: 5px solid var(--black); }
.hero-content { flex: 1; padding: 80px 40px; background: var(--white); border-right: 5px solid var(--black); display: flex; flex-direction: column; justify-content: center; }
.hero-content h1 { font-size: 5rem; margin-bottom: 30px; background: var(--yellow); display: inline-block; padding: 5px 20px; border: 4px solid var(--black); transform: rotate(-2deg); box-shadow: 4px 4px 0px var(--black); color: var(--black);}
.hero-content p { font-size: 1.5rem; font-weight: 700; margin-bottom: 40px; max-width: 500px; }
.hero-visual { flex: 1; background: var(--blue); position: relative; overflow: hidden; display: flex; align-items:center; justify-content:center;}

.check-stripe { background: repeating-linear-gradient(45deg, var(--black), var(--black) 20px, var(--yellow) 20px, var(--yellow) 40px); height: 30px; border-top: 5px solid var(--black); border-bottom: 5px solid var(--black); width: 100%;}

/* Form */
.b-form { display: flex; flex-direction: column; gap: 20px; }
.b-form input { padding: 20px; border: 5px solid var(--black); font-family: var(--font-ui); font-size: 18px; font-weight: 700; box-shadow: 4px 4px 0px var(--black); }
.b-form input:focus { outline: none; background: #f1f2f6; }

/* Typo inside */
p { margin-bottom: 20px; font-weight: 500; }
ul { list-style: square; margin-bottom: 30px; margin-left: 20px; font-weight: 600; }

footer { background: var(--black); color: var(--white); padding: 60px 0; border-top: 15px solid var(--blue); text-align: center; }
footer a { color: var(--yellow); text-decoration: underline; margin: 0 15px; font-weight: 700; }

@media (max-width: 900px) {
    .hero { flex-direction: column; }
    .hero-content { border-right: none; border-bottom: 5px solid var(--black); padding: 40px 20px; }
    .hero-content h1 { font-size: 3rem; }
    .nav-links { display: none; }
    body { border-width: 5px; }
}