/* ============================================================
   Number Guessing Game - style.css
   Gustavo Henrique de Mello Voltolini - Assessment 1.2.4
   ============================================================ */

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

body {
    background-color: #10131C;
    background-image: radial-gradient(circle at 50% 0%, #1E2740 0%, #10131C 60%);
    color: #E7EBF5;
    font-family: "Segoe UI", Tahoma, Verdana, Arial, sans-serif;
    font-size: 17px;
    line-height: 1.6;
    min-height: 100vh;
    padding: 40px 18px;
}

.game {
    width: 100%;
    max-width: 620px;
    margin: 0 auto;
    background-color: #171C2A;
    border: 1px solid #2A3348;
    border-radius: 16px;
    padding: 38px 34px 34px 34px;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

/* ---------- header ---------- */

.eyebrow {
    color: #6EE7C8;
    font-size: 12px;
    font-weight: bold;
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 10px;
}

h1 {
    font-size: 34px;
    line-height: 1.15;
    letter-spacing: -0.5px;
    margin-bottom: 12px;
}

.subtitle { color: #6EE7C8; font-size: 19px; font-weight: bold; margin-bottom: 12px; }
.intro { color: #A3AECA; font-size: 16px; }
.intro strong { color: #FFFFFF; }

/* ---------- form ---------- */

.guess-form { margin-top: 28px; }

.field-label {
    display: block;
    color: #8E9AB8;
    font-size: 12px;
    font-weight: bold;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 8px;
}

.field-row { display: flex; gap: 10px; }

.field {
    flex: 1 1 auto;
    min-width: 0;
    background-color: #0E1220;
    border: 2px solid #2A3348;
    border-radius: 10px;
    color: #FFFFFF;
    font-family: inherit;
    font-size: 24px;
    font-weight: bold;
    padding: 12px 16px;
    transition: border-color 0.15s;
}

.field:focus { outline: none; border-color: #6EE7C8; }
.field:disabled { opacity: 0.5; }
.field::placeholder { color: #4C5674; font-weight: normal; font-size: 18px; }

.btn {
    flex: 0 0 auto;
    background-color: #6EE7C8;
    border: 0;
    border-radius: 10px;
    color: #0E1220;
    cursor: pointer;
    font-family: inherit;
    font-size: 15px;
    font-weight: bold;
    letter-spacing: 1px;
    padding: 12px 26px;
    text-transform: uppercase;
    transition: background-color 0.15s, transform 0.15s;
}

.btn:hover:enabled { background-color: #FFFFFF; transform: translateY(-1px); }
.btn:focus-visible { outline: 3px solid #FFFFFF; outline-offset: 2px; }
.btn:disabled { background-color: #39425C; color: #7B87A6; cursor: not-allowed; }

.btn-again { width: 100%; margin-top: 26px; background-color: #FFC53D; }

/* ---------- feedback ---------- */

.message {
    border-radius: 10px;
    font-size: 18px;
    font-weight: bold;
    margin-top: 20px;
    padding: 16px 18px;
    border-left: 5px solid #4C5674;
    background-color: #1D2436;
    color: #C6D0E8;
}

.message-high { border-left-color: #FF7A8A; color: #FFC2CA; }
.message-low  { border-left-color: #6FA8FF; color: #C3DBFF; }
.message-win  { border-left-color: #6EE7C8; color: #B7FFEA; }
.message-error { border-left-color: #FFC53D; color: #FFE3A6; }

/* ---------- scoreboard ---------- */

.scoreboard { display: flex; gap: 10px; margin-top: 20px; }

.score {
    flex: 1 1 0;
    background-color: #0E1220;
    border: 1px solid #2A3348;
    border-radius: 10px;
    padding: 14px 12px;
    text-align: center;
}

.score-value {
    display: block;
    color: #FFFFFF;
    font-size: 26px;
    font-weight: bold;
    line-height: 1.1;
}

.score-label {
    display: block;
    color: #7B87A6;
    font-size: 11px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    padding-top: 5px;
}

/* ---------- history ---------- */

.history-block { margin-top: 26px; }

.history-title {
    color: #8E9AB8;
    font-size: 12px;
    font-weight: bold;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 10px;
}

.history { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; }

.history-empty { color: #5B6685; font-size: 15px; }

.history-item {
    display: flex;
    align-items: baseline;
    gap: 7px;
    background-color: #0E1220;
    border: 1px solid #2A3348;
    border-radius: 8px;
    padding: 7px 12px;
}

.history-number { color: #FFFFFF; font-size: 17px; font-weight: bold; }
.history-note { font-size: 12px; letter-spacing: 0.5px; text-transform: uppercase; }

.history-high .history-note { color: #FF7A8A; }
.history-low  .history-note { color: #6FA8FF; }
.history-win { border-color: #6EE7C8; }
.history-win .history-note { color: #6EE7C8; }

/* ---------- small screens ---------- */

@media screen and (max-width: 520px) {
    body { padding: 20px 12px; }
    .game { padding: 26px 20px; border-radius: 12px; }
    h1 { font-size: 27px; }
    .field-row { flex-wrap: wrap; }
    .field { flex: 1 1 100%; font-size: 21px; }
    .btn { flex: 1 1 100%; }
    .scoreboard { flex-wrap: wrap; }
    .score { flex: 1 1 100%; }
}