/* ==========================================
   Tokens
   ========================================== */

:root {
    /* Brand */
    --gold:        #c9973a;
    --gold-light:  #e4b96a;
    --gold-dark:   #8b6420;

    /* Surfaces */
    --bg:          #13100b;
    --card-bg:     #1e1810;
    --card-border: #3a2e1a;
    --input-bg:    #2a2115;

    /* Text */
    --text:        #ede0c4;
    --text-dim:    #9a8a6a;
    --text-muted:  #5c4e34;

    /* State */
    --success:     #7ec87e;
    --error:       #e06060;

    /* Geometry */
    --radius:      14px;
    --radius-sm:   9px;

    /* Animation */
    --t:           .2s ease;
}

/* ==========================================
   Reset
   ========================================== */

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

html {
    height: 100%;
    -webkit-text-size-adjust: 100%;
    overflow-y: auto;
}

/* ==========================================
   Base
   ========================================== */

body {
    min-height: 100vh;

    font-family: "Inter", sans-serif;

    background: var(--bg);

    color: var(--text);

    display: block;

    overflow-y: auto;

    padding: 24px 20px 40px;
    padding-bottom: calc(40px + env(safe-area-inset-bottom));
}


/* ==========================================
   App shell
   ========================================== */

#app {
    width: 100%;
    display: flex;
    justify-content: center;
    min-height: 100%;
}

/* ==========================================
   Card
   ========================================== */

.card {
    width: 100%;
    max-width: 520px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 32px 28px;
    box-shadow:
        0 0 0 1px rgba(201,151,58,.08),
        0 20px 60px rgba(0,0,0,.6);
}

/* ==========================================
   Logo
   ========================================== */

#logo {
    width: 88px;
    height: 88px;
    display: block;
    margin: 0 auto 28px;
    border-radius: 50%;
    box-shadow: 0 0 24px rgba(201,151,58,.3);
}

/* ==========================================
   Typography — mission card
   ========================================== */

h1 {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 8px;
    text-align: center;
}

h2 {
    font-size: 26px;
    font-weight: 700;
    text-align: center;
    color: var(--text);
    line-height: 1.25;
    margin-bottom: 20px;
}

#missionText {
    font-size: 16px;
    line-height: 1.75;
    color: var(--text-dim);
    margin-bottom: 28px;
    white-space: pre-line;
}

/* ==========================================
   Geo section
   ========================================== */

#geoSection {
    margin-bottom: 24px;
}

#geoStatus {
    margin-top: 12px;
    color: var(--text-muted);
    font-size: 14px;
    text-align: center;
}

#hintBox, #missionHintBox {

    margin-top: 16px;

    background: rgba(201,151,58,.08);

    border-left: 3px solid var(--gold);

    padding: 14px 16px;

    border-radius: var(--radius-sm);

    font-size: 15px;

    line-height: 1.6;

    color: var(--text-dim);

    white-space: pre-line;

}

/* ==========================================
   Answer section
   ========================================== */

label {
    display: block;
    margin-bottom: 8px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--gold);
}

input {
    width: 100%;
    height: 50px;
    padding: 0 16px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--card-border);
    background: var(--input-bg);
    color: var(--text);
    font-size: 17px;
    font-family: inherit;
    outline: none;
    transition: border-color var(--t), box-shadow var(--t);
    margin-bottom: 16px;
}

input::placeholder {
    color: var(--text-muted);
}

input:focus {
    border-color: var(--gold-dark);
    box-shadow: 0 0 0 3px rgba(201,151,58,.15);
}

input:disabled {
    opacity: .4;
    cursor: not-allowed;
}

/* ==========================================
   Buttons
   ========================================== */

button {
    width: 100%;
    height: 52px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 700;
    font-family: inherit;
    letter-spacing: .04em;
    cursor: pointer;
    transition: filter var(--t), transform var(--t);
}

button:active {
    transform: scale(.97);
}

button:disabled {
    opacity: .4;
    cursor: not-allowed;
}

.primary {
    background: linear-gradient(135deg, var(--gold-dark) 0%, var(--gold) 50%, var(--gold-light) 100%);
    color: #13100b;
    box-shadow: 0 4px 20px rgba(201,151,58,.35);
}

.primary:hover:not(:disabled) {
    filter: brightness(1.1);
}

.secondary {
    margin-top: 12px;
    background: transparent;
    border: 1px solid var(--card-border);
    color: var(--text-dim);
}

.secondary:hover {
    background: rgba(255,255,255,.04);
    border-color: var(--gold-dark);
    color: var(--text);
}

/* ==========================================
   Message
   ========================================== */

#message {
    min-height: 24px;
    margin-top: 16px;
    text-align: center;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: .02em;
}

.success { color: var(--success); }
.error   { color: var(--error);   }

/* ==========================================
   Progress
   ========================================== */

#progressContainer {
    margin-top: 32px;
}

#progressBar {
    height: 6px;
    background: rgba(255,255,255,.07);
    border-radius: 999px;
    overflow: hidden;
}

#progressFill {
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, var(--gold-dark), var(--gold-light));
    border-radius: 999px;
    transition: width .4s ease;
}

#progressText {
    margin-top: 8px;
    text-align: center;
    font-size: 12px;
    letter-spacing: .06em;
    text-transform: uppercase;
    color: var(--text-muted);
}

/* ==========================================
   Mission navigation
   ========================================== */

#missionNav {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.nav-btn {
    margin-top: 0;
    flex: 1;
    height: 46px;
    font-size: 14px;
}

/* ==========================================
   Finish screen
   ========================================== */

#finishScreen {
    position: fixed;
    inset: 0;
    background: rgba(13,10,7,.97);
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    z-index: 100;
}

.finishImage {
    width: 100%;
    border-radius: var(--radius-sm);
    margin-bottom: 24px;
    box-shadow: 0 8px 32px rgba(0,0,0,.5);
}

/* ==========================================
   Welcome screen
   ========================================== */

#welcomeScreen {
    position: fixed;
    inset: 0;
    display: flex;
    justify-content: center;
    align-items: flex-end;
    z-index: 200;
    overflow: hidden;
}

#welcomeBg {
    position: absolute;
    inset: 0;
    background:
        url("img/logo.png") center center / cover no-repeat;
    /* darken bottom so card text is readable */
    -webkit-mask-image: linear-gradient(to bottom, rgba(0,0,0,1) 40%, rgba(0,0,0,.0) 100%);
    mask-image:         linear-gradient(to bottom, rgba(0,0,0,1) 40%, rgba(0,0,0,.0) 100%);
}

/* subtle vignette overlay */
#welcomeScreen::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        rgba(0,0,0,.15) 0%,
        rgba(0,0,0,.55) 55%,
        rgba(0,0,0,.93) 100%
    );
    z-index: 0;
}

#welcomeCard {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 520px;
    padding: 36px 28px 40px;
    text-align: center;
}

#welcomeEyebrow {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .16em;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 14px;
}

#welcomeTitle {
    font-size: 34px;
    font-weight: 800;
    line-height: 1.15;
    color: #fff;
    margin-bottom: 14px;
    text-shadow: 0 2px 16px rgba(0,0,0,.7);
}

#welcomeSubtitle {
    font-size: 17px;
    line-height: 1.6;
    color: var(--text-dim);
    margin-bottom: 10px;
}

#welcomeDisclaimer {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-muted);
    background: rgba(255,255,255,.06);
    border: 1px solid rgba(255,255,255,.1);
    padding: 6px 14px;
    border-radius: 999px;
    margin-bottom: 28px;
}

#startButton.primary {
    font-size: 16px;
    height: 56px;
    border-radius: 12px;
    letter-spacing: .06em;
    text-transform: uppercase;
    box-shadow: 0 6px 32px rgba(201,151,58,.5);
}

#welcomeCopyright {
    margin-top: 20px;
    font-size: 11px;
    color: var(--text-muted);
    letter-spacing: .06em;
}

/* ==========================================
   Utility
   ========================================== */

.hidden {
    display: none !important;
}

/* ==========================================
   Mobile
   ========================================== */

@media (max-width: 480px) {

    body {
        padding: 16px 14px 32px;
    }

    .card {
        padding: 24px 20px;
    }

    h2 {
        font-size: 22px;
    }

    #welcomeTitle {
        font-size: 28px;
    }

    #missionText {
        font-size: 15px;
    }

    input, button {
        font-size: 16px;
    }
}