/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   arg.css
   ARG registration and card upload prompts.

   Two prompts, one shown at a time:
     #argRegPrompt  — new visitor, picks a username
     #argCardPrompt — returning visitor, uploads their card image

   Design language: ultra-minimal. No boxes, no decorative chrome.
   The bare input and single action button carry all the weight.
   The UI trusts the player to understand what's being asked.

   Contains:
     - Shared prompt container rules (#argRegPrompt, #argCardPrompt)
     - Minimal input, button, message, and sub-label styles
     - Card slot dropzone (two lines = card reader slit)
     - Ghost "switch to register" button
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */


/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   SHARED PROMPT CONTAINER
   Both prompts use identical positioning and visibility logic.
   JS adds/removes .visible and .fading.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

/* All three ARG prompts share the same right-side position.
   They are shown one at a time — JS adds/removes .visible.
   right:17vw + top:50% + translateY(-50%) keeps them vertically
   centred on the right third of the screen, clear of the globe. */
#argRegPrompt,
#argCardPrompt,
#argChoicePrompt {
    position: fixed;
    right: 17vw;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    z-index: 300;
    opacity: 0;
    pointer-events: none;
    transition: opacity 1.2s ease;
}

#argRegPrompt.visible,
#argCardPrompt.visible,
#argChoicePrompt.visible {
    opacity: 1;
    pointer-events: all;
}

/* Faster fade-out when dismissing (fading class) */
#argRegPrompt.fading,
#argCardPrompt.fading,
#argChoicePrompt.fading {
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.8s ease;
}


/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   INNER LAYOUT
   Centered column — everything stacks vertically.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.arg-minimal-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}


/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   TEXT INPUT
   Single bare input — no box, no label, just an underline.
   The placeholder "—" is the entire instruction.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.arg-minimal-input {
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--ink);
    padding: 12px 0;
    width: 240px;
    font-family: 'Space Mono', monospace;
    font-size: 1rem;
    letter-spacing: 0.2em;
    color: var(--ink);
    outline: none;
    text-align: center;
    transition: border-color 0.2s;
}

.arg-minimal-input:focus {
    border-bottom-color: var(--red);
}

.arg-minimal-input::placeholder {
    color: var(--muted);
    opacity: 0.4;
}


/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   SUBMIT BUTTON
   Arrow-only. Transparent background. Becomes ink-coloured on hover.
   Minimal presence — the player's eye should be on the input.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.arg-minimal-btn {
    background: transparent;
    border: none;
    color: var(--muted);
    font-family: 'Space Mono', monospace;
    font-size: 1.2rem;
    cursor: pointer;
    transition: color 0.15s;
    padding: 4px 12px;
}

.arg-minimal-btn:hover {
    color: var(--ink);
}


/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   STATUS MESSAGE
   Tiny centered text below the button.
   JS sets .error / .success classes.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.arg-minimal-msg {
    font-family: 'Space Mono', monospace;
    font-size: 0.58rem;
    letter-spacing: 0.12em;
    min-height: 16px;
    color: var(--muted);
    text-align: center;
}

.arg-minimal-msg.error   { color: var(--red); }
.arg-minimal-msg.success { color: var(--sage); }


/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   ONE-WORD SUB-LABEL
   "designate" beneath the registration input.
   Near-invisible — provides context without demanding attention.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.arg-minimal-sub {
    font-family: 'Space Mono', monospace;
    font-size: 0.5rem;
    letter-spacing: 0.3em;
    color: var(--muted);
    opacity: 0.4;
    text-transform: uppercase;
}


/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   CARD SLOT
   Two parallel horizontal lines suggesting a card reader slit.
   Clicking it opens the hidden file input.
   Opacity low at rest — brightens on hover to signal interactivity.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

/* Card slot — contains the SVG card diagram.
   Sized to match the card's aspect ratio (56×86 viewBox → ~70×108px).
   Opacity low at rest, brightens on hover to signal "insert card here". */
.arg-card-slot {
    width: 70px;
    height: 108px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0.35;
    transition: opacity 0.25s, transform 0.25s;
}

.arg-card-slot:hover {
    opacity: 0.75;
    transform: translateY(-3px);
}

/* The SVG card illustration — fills the slot container */
.arg-card-diagram {
    width: 100%;
    height: 100%;
    display: block;
}


/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   GHOST SWITCH BUTTON
   The "—" button on the card prompt that resets to registration.
   Barely visible — it's an escape hatch, not a primary action.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

/* Back button — shared by both reg and card prompts.
   Sits below the status message. Same ghost family as .arg-minimal-ghost
   but slightly more readable — this is a nav action, not an escape hatch. */
.arg-back-btn {
    background: transparent;
    border: none;
    color: var(--muted);
    font-family: 'Space Mono', monospace;
    font-size: 0.5rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    cursor: pointer;
    opacity: 0.45;
    transition: opacity 0.2s, color 0.15s;
    padding: 6px 0;
    margin-top: 8px;
}

.arg-back-btn:hover {
    opacity: 1;
    color: var(--ink);
}


.arg-minimal-ghost {
    background: transparent;
    border: none;
    color: var(--muted);
    font-size: 1rem;
    cursor: pointer;
    opacity: 0.25;
    transition: opacity 0.2s;
    padding: 4px 8px;
    font-family: 'Space Mono', monospace;
}

.arg-minimal-ghost:hover {
    opacity: 0.6;
}


/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   CHOICE PROMPT
   Two buttons — "register" and "offer token" — stacked vertically.
   Same minimal language as the rest of the ARG UI.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.arg-choice-btn {
    font-family: 'Space Mono', monospace;
    font-size: 0.62rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--muted);
    padding: 8px 0;
    width: 180px;
    transition: color 0.15s;
    border-bottom: 1px solid transparent;
}

.arg-choice-btn:hover {
    color: var(--ink);
    border-bottom-color: var(--ink);
}

/* The "—" divider between the two options */
.arg-choice-divider {
    font-family: 'Space Mono', monospace;
    font-size: 0.5rem;
    color: var(--muted);
    opacity: 0.3;
    letter-spacing: 0.2em;
}


/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   WELCOME + LOGOUT
   Hidden by default. JS adds .visible class to show them.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

#argWelcome {
    position: fixed;
    top: 32px;
    left: 50%;
    transform: translateX(-50%);
    font-family: 'Vipnagorgialla Rg', sans-serif;
    font-size: clamp(1.2rem, 2.5vw, 2rem);
    letter-spacing: 0.12em;
    color: var(--ink);
    text-transform: uppercase;
    white-space: nowrap;
    z-index: 400;
    opacity: 0;
    pointer-events: none;
    transition: opacity 1.4s ease;
}

#argWelcome.visible {
    opacity: 1;
}

#argLogout {
    position: fixed;
    bottom: 28px;
    left: 36px;
    font-family: 'Space Mono', monospace;
    font-size: 0.72rem;
    letter-spacing: 0.25em;
    color: var(--muted);
    background: transparent;
    border: none;
    cursor: pointer;
    opacity: 0;
    transition: opacity 1.4s ease, color 0.15s;
    z-index: 400;
    text-transform: uppercase;
    padding: 8px 0;
    pointer-events: none;
}

#argLogout.visible {
    opacity: 1;
    pointer-events: all;
}

#argLogout:hover {
    color: var(--ink);
}