/* ═══════════════════════════════════════════════════════════════════════
   JAVA CRAFT — Retro Pixel Art Styles
   Palette: dark bg, java-orange accents, terminal green, danger red
   ═══════════════════════════════════════════════════════════════════════ */

:root {
    --bg-dark:    #1a1a2e;
    --bg-panel:   #0f3460;
    --bg-card:    #16213e;
    --java-orange:#f89820;
    --terminal:   #00ff41;
    --danger:     #e94560;
    --text:       #e0e0e0;
    --text-muted: #6b7280;
    --pixel-border-size: 2px;
}

/* ── Base ───────────────────────────────────────────────────────────── */
* { image-rendering: pixelated; }

body {
    background-color: var(--bg-dark);
    font-family: 'Press Start 2P', monospace;
    color: var(--text);
}

/* ── Pixel glow effect ──────────────────────────────────────────────── */
.pixel-glow {
    text-shadow:
        0 0 8px currentColor,
        0 0 20px currentColor;
}

/* ── Pixel border (box-shadow trick) ────────────────────────────────── */
.pixel-border {
    box-shadow:
        -2px 0 0 0 currentColor,
        2px 0 0 0 currentColor,
        0 -2px 0 0 currentColor,
        0 2px 0 0 currentColor;
}

/* ── Cards ──────────────────────────────────────────────────────────── */
.pixel-card {
    background: var(--bg-card);
    border: 2px solid #374151;
    padding: 1rem;
    position: relative;
}

.pixel-card:hover {
    border-color: #4b5563;
}

/* ── Buttons ────────────────────────────────────────────────────────── */
.pixel-btn {
    display: inline-block;
    background: var(--bg-panel);
    border: 2px solid #374151;
    color: var(--text);
    padding: 0.5rem 1rem;
    font-family: 'Press Start 2P', monospace;
    font-size: 0.6rem;
    cursor: pointer;
    transition: all 0.1s;
    text-decoration: none;
    text-align: center;
}

.pixel-btn:hover {
    border-color: var(--java-orange);
    color: var(--java-orange);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(248, 152, 32, 0.3);
}

.pixel-btn:active {
    transform: translateY(1px);
}

.pixel-btn-primary {
    background: var(--java-orange);
    border-color: #c47710;
    color: var(--bg-dark);
}

.pixel-btn-primary:hover {
    background: #ffa830;
    border-color: var(--java-orange);
    color: var(--bg-dark);
    box-shadow: 0 2px 12px rgba(248, 152, 32, 0.5);
}

/* ── Inputs ─────────────────────────────────────────────────────────── */
.pixel-input {
    background: var(--bg-dark);
    border: 2px solid #374151;
    color: var(--text);
    padding: 0.5rem 0.75rem;
    font-family: 'Press Start 2P', monospace;
    font-size: 0.6rem;
    outline: none;
    width: 100%;
}

.pixel-input:focus {
    border-color: var(--java-orange);
    box-shadow: 0 0 8px rgba(248, 152, 32, 0.3);
}

.pixel-input::placeholder {
    color: #4b5563;
}

/* ── Answer buttons ─────────────────────────────────────────────────── */
.answer-btn {
    display: block;
    width: 100%;
    background: var(--bg-dark);
    border: 2px solid #374151;
    color: var(--text);
    padding: 0.75rem;
    font-family: 'Press Start 2P', monospace;
    font-size: 0.55rem;
    cursor: pointer;
    text-align: left;
    transition: all 0.1s;
    line-height: 1.6;
}

.answer-btn:hover {
    border-color: var(--java-orange);
    background: rgba(248, 152, 32, 0.1);
    transform: translateX(2px);
}

.answer-btn:active {
    transform: translateX(4px);
    background: rgba(248, 152, 32, 0.2);
}

/* ── Code block ─────────────────────────────────────────────────────── */
.code-block {
    background: #0d0d0d;
    border-left: 3px solid var(--terminal);
    color: var(--terminal);
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.75rem;
    padding: 0.75rem 1rem;
    overflow-x: auto;
    white-space: pre;
    line-height: 1.5;
}

/* ── Battle Arena ───────────────────────────────────────────────────── */
.battle-arena {
    background: linear-gradient(180deg, #0a0a1a 0%, var(--bg-card) 100%);
    border: 2px solid #374151;
    min-height: 200px;
}

/* ── Scanlines CRT effect ───────────────────────────────────────────── */
.scanlines {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0, 0, 0, 0.08) 2px,
        rgba(0, 0, 0, 0.08) 4px
    );
    pointer-events: none;
    z-index: 1;
}

/* ── Enemy sprite ───────────────────────────────────────────────────── */
.enemy-sprite {
    display: inline-block;
    animation: enemy-float 2s ease-in-out infinite;
    filter: drop-shadow(0 0 8px var(--danger));
    position: relative;
    z-index: 2;
}

@keyframes enemy-float {
    0%, 100% { transform: translateY(0); }
    50%       { transform: translateY(-8px); }
}

/* ── Enemy preview on landing page ─────────────────────────────────── */
.enemy-preview {
    animation: enemy-float 2s ease-in-out infinite;
    cursor: default;
    display: inline-block;
    filter: drop-shadow(0 0 6px rgba(233, 69, 96, 0.5));
}

.enemy-preview:nth-child(2) { animation-delay: 0.3s; }
.enemy-preview:nth-child(3) { animation-delay: 0.6s; }
.enemy-preview:nth-child(4) { animation-delay: 0.9s; }
.enemy-preview:nth-child(5) { animation-delay: 1.2s; }
.enemy-preview:nth-child(6) { animation-delay: 1.5s; }
.enemy-preview:nth-child(7) { animation-delay: 1.8s; }

/* ── HTMX loading indicator ─────────────────────────────────────────── */
.htmx-indicator {
    opacity: 0;
    transition: opacity 200ms ease-in;
}
.htmx-request .htmx-indicator,
.htmx-request.htmx-indicator {
    opacity: 1;
}

/* ── Blinking cursor ────────────────────────────────────────────────── */
.blink {
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0; }
}

/* ── HP hearts ──────────────────────────────────────────────────────── */
#hud-lives span {
    font-size: 1rem;
    text-shadow: 0 0 6px var(--danger);
    margin: 0 1px;
}

/* ── Enemy hit animation ────────────────────────────────────────────── */
@keyframes enemy-shake {
    0%, 100% { transform: translateX(0)   translateY(0); filter: drop-shadow(0 0 8px var(--danger)); }
    20%       { transform: translateX(-8px) translateY(0); filter: drop-shadow(0 0 20px var(--terminal)) brightness(2); }
    40%       { transform: translateX(8px)  translateY(-4px); }
    60%       { transform: translateX(-5px) translateY(0); }
    80%       { transform: translateX(5px)  translateY(2px); }
}

.enemy-hit {
    animation: enemy-shake 0.45s ease-in-out !important;
    filter: drop-shadow(0 0 20px var(--terminal)) !important;
}

/* ── Player damage screen flash ─────────────────────────────────────── */
@keyframes damage-flash {
    0%        { opacity: 0; }
    30%       { opacity: 1; }
    100%      { opacity: 0; }
}

.damage-overlay {
    position: fixed;
    inset: 0;
    background: rgba(233, 69, 96, 0.35);
    pointer-events: none;
    z-index: 9999;
    animation: damage-flash 0.5s ease-out forwards;
}

/* ── Combo burst ────────────────────────────────────────────────────── */
@keyframes combo-pop {
    0%   { transform: scale(1); }
    50%  { transform: scale(1.4); color: var(--java-orange); }
    100% { transform: scale(1); }
}

#hud-combo.combo-pop {
    animation: combo-pop 0.3s ease-out;
}

/* ── Level card states ──────────────────────────────────────────────── */
.level-card.locked { opacity: 0.45; }
.level-card.unlocked { opacity: 1; }

/* ── Island Map ─────────────────────────────────────────────────────── */
.map-container {
    background-color: #060d18;
    background-image:
        radial-gradient(ellipse 60% 40% at 20% 25%, rgba(0,255,65,0.04) 0%, transparent 70%),
        radial-gradient(ellipse 50% 35% at 75% 70%, rgba(248,152,32,0.04) 0%, transparent 70%);
    border: 2px solid #1f2937;
}

/* ── Difficulty bar ──────────────────────────────────────────────────── */
.diff-btn {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    background: var(--bg-card);
    border: 2px solid #374151;
    padding: 6px 12px;
    font-family: 'Press Start 2P', monospace;
    font-size: 0.5rem;
    color: var(--text-muted);
    text-decoration: none;
    cursor: pointer;
    transition: border-color 0.15s, box-shadow 0.15s;
    min-width: 88px;
    text-align: center;
}
.diff-btn:hover:not(.diff-locked) {
    border-color: var(--java-orange);
    color: var(--java-orange);
}
.diff-selected {
    border-color: var(--java-orange);
    color: var(--java-orange);
    box-shadow: 0 0 10px rgba(248, 152, 32, 0.35);
}
.diff-locked {
    opacity: 0.4;
    cursor: not-allowed;
    filter: grayscale(1);
}
.diff-progress { font-size: 0.45rem; margin-top: 3px; }

/* ── Island transparent overlays (click targets on canvas islands) ─── */
.island-overlay {
    position: absolute;
    width: 90px;
    height: 64px;
    z-index: 10;
    background: transparent;
    border: none;
    display: block;
}
.overlay-cleared  { cursor: pointer; }
.overlay-available {
    cursor: pointer;
    animation: overlay-pulse 2s ease-in-out infinite;
}
.overlay-locked   { cursor: not-allowed; pointer-events: none; }

@keyframes overlay-pulse {
    0%, 100% { box-shadow: none; }
    50%       { box-shadow: 0 0 24px rgba(248, 152, 32, 0.55); }
}

/* ── Scrollbar ──────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: var(--bg-panel); border: 1px solid #374151; }
::-webkit-scrollbar-thumb:hover { background: var(--java-orange); }