/* Minimal Theme */
:root {
    --bg-color: #ffffff;
    --text-color: #111111;
    --accent-color: #111111;
    --border-style: 1px solid #eee;
    --font-main: "Helvetica Neue", Helvetica, Arial, sans-serif;
    --font-heading: "Helvetica Neue", Helvetica, Arial, sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-main);
}

h1 {
    font-size: 4rem;
    font-weight: 300;
    line-height: 1;
    letter-spacing: -2px;
}

.card {
    padding: 4rem 0;
    border-bottom: 1px solid #111;
}

.tag {
    text-transform: uppercase;
    font-size: 0.7rem;
    letter-spacing: 1px;
    border: 1px solid #111;
    padding: 0.5rem 1rem;
}

img {
    filter: grayscale(100%);
}

/* UI Kit */
input,
select {
    border: 1px solid #ccc;
    padding: 1rem 0;
    border-width: 0 0 1px 0;
    outline: none;
    width: 100%;
    font-family: inherit;
}

input:focus {
    border-color: var(--accent-color);
}

.btn {
    background: transparent;
    border: 1px solid #ccc;
    padding: 1rem 2rem;
    cursor: pointer;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 1px;
}

.btn-primary {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

.btn:disabled {
    color: #ccc;
    border-color: #eee;
    cursor: not-allowed;
    background: transparent;
}