:root {
    --theme-color: #ffa4c4;
    --accent-color: #34353a;
    --accent-color-hover: #13141d;
}

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

html, body {
    height: 100%;
}

body {
    font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.5;
    background-color: var(--theme-color);
    color: var(--accent-color);
    display: flex;
    flex-direction: column;
}

main {
    flex-grow: 1;
}

/* ===== Layout ===== */
.container {
    width: min(960px, 92%);
    margin: 0 auto;
}

/* ===== Hero ===== */
.hero {
    background: var(--accent-color);
    color: white;
    padding: 2rem 0;
    text-align: center;
}

.hero h1 {
    font-size: 2.2rem;
    margin-bottom: 0.5rem;
}

.hero p {
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Cards ===== */
.card {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    margin: 1.5rem 0;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.06);
}

/* ===== Form Elements ===== */
label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

textarea,
input[type="email"] {
    width: 100%;
    border: 1px solid #d1d5db;
    border-radius: 10px;
    padding: 0.75rem;
    font-size: 1rem;
    background: #fff;
    transition: border 0.2s, box-shadow 0.2s;
}

textarea:focus,
input[type="email"]:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

/* ===== Buttons ===== */
button {
    margin-top: 1rem;
    background: var(--accent-color);
    color: white;
    border: none;
    padding: 0.75rem 1rem;
    border-radius: 10px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s, transform 0.05s;
}

button:hover {
    background: var(--accent-color-hover);
}

button:active {
    transform: translateY(1px);
}

/* ===== Sections ===== */
h2 {
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

/* ===== Lists ===== */
ul {
    list-style: none;
    margin-top: 0.5rem;
}

ul li {
    padding: 0.4rem 0;
    color: #374151;
}

/* ===== Utility ===== */
.hidden {
    display: none;
}

/* ===== Results blocks ===== */
#score {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

#summary,
#strengths,
#improvements,
#rewrite {
    margin-top: 0.5rem;
    padding: 0.75rem;
    background: #f9fafb;
    border-radius: 8px;
    border: 1px solid #e5e7eb;
}

/* ===== Footer ===== */
footer {
    background: var(--accent-color);
    color: white;
    margin-top: 3rem;
    padding: 2rem 0;
    text-align: center;
    font-size: 0.9rem;
}

/* ===== Responsive ===== */
@media (max-width: 600px) {
    .hero h1 {
        font-size: 1.6rem;
    }

    .card {
        padding: 1rem;
    }
}

h3 {
    margin: 10px 0 0;
}

hr {
    margin-top: 20px;
}