* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --background: #0f172a;
    --surface: #1e293b;
    --surface-hover: #334155;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --text: #f8fafc;
    --text-muted: #94a3b8;
    --border: #334155;
    --success: #22c55e;
    --danger: #ef4444;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    background: var(--background);
    color: var(--text);
    min-height: 100vh;
}

a {
    color: inherit;
    text-decoration: none;
}

.navbar {
    width: 100%;
    height: 80px;
    padding: 0 60px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border);
    background: rgba(15,23,42,.9);
    backdrop-filter: blur(12px);
}

.logo {
    font-size: 28px;
    font-weight: bold;
}

nav {
    display: flex;
    gap: 18px;
    align-items: center;
}

.button {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 12px;
    background: var(--surface);
    transition: .2s;
}

.button:hover {
    background: var(--surface-hover);
}

.primary {
    background: var(--primary);
}

.primary:hover {
    background: var(--primary-hover);
}

.secondary {
    border: 1px solid var(--border);
}

.hero {
    max-width: 1100px;
    margin: 120px auto;
    text-align: center;
    padding: 0 20px;
}

.hero h1 {
    font-size: 64px;
    margin-bottom: 20px;
}

.hero p {
    font-size: 22px;
    color: var(--text-muted);
    max-width: 700px;
    margin: auto;
    line-height: 1.6;
}

.hero-buttons {
    margin-top: 40px;
    display: flex;
    justify-content: center;
    gap: 20px;
}

.features {
    max-width: 1200px;
    margin: 80px auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px,1fr));
    gap: 30px;
    padding: 0 20px;
}

.feature-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 35px;
    transition: .2s;
}

.feature-card:hover {
    transform: translateY(-6px);
    background: var(--surface-hover);
}

.feature-card h2 {
    margin-bottom: 15px;
}

.feature-card p {
    color: var(--text-muted);
    line-height: 1.6;
}

footer {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

input,
textarea,
select {
    width: 100%;
    padding: 14px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    outline: none;
    font-size: 16px;
}

input:focus,
textarea:focus,
select:focus {
    border-color: var(--primary);
}

.auth-container {
    max-width: 420px;
    margin: 80px auto;
    padding: 40px;
    background: var(--surface);
    border-radius: 20px;
    border: 1px solid var(--border);
}

.auth-container h1 {
    margin-bottom: 30px;
    text-align: center;
}

.form-group {
    margin-bottom: 20px;
}

.error {
    background: rgba(239,68,68,.15);
    color: #fecaca;
    padding: 12px;
    border-radius: 10px;
    margin-bottom: 20px;
}

.dashboard {
    max-width: 1300px;
    margin: 50px auto;
    padding: 20px;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 24px;
}

@media (max-width:768px){

.hero h1{
    font-size:42px;
}

.hero-buttons{
    flex-direction:column;
}

.navbar{
    padding:20px;
}

nav{
    gap:10px;
}

}