@import url('https://fonts.googleapis.com/css2?family=VT323&family=Inter:wght@400;500;600;700&display=swap');

/*  RESET & BASE  */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-deep: #080810;
    --bg-panel: #0e0e1c;
    --bg-panel-alt: #111126;
    --bg-elevated: #16162e;
    --border: #1e1e3a;
    --border-focus: #00d4ff;
    --accent: #00d4ff;
    --accent-dim: rgba(0, 212, 255, 0.12);
    --accent-glow: rgba(0, 212, 255, 0.35);
    --accent-glow-strong: rgba(0, 212, 255, 0.55);
    --text: #d8d8e8;
    --text-muted: #7a7a9a;
    --text-dim: #50506a;
    --green: #22c55e;
    --green-bg: rgba(34, 197, 94, 0.12);
    --green-border: rgba(34, 197, 94, 0.3);
    --green-glow: rgba(34, 197, 94, 0.5);
    --yellow: #eab308;
    --yellow-bg: rgba(234, 179, 8, 0.12);
    --yellow-glow: rgba(234, 179, 8, 0.4);
    --red: #ef4444;
    --red-bg: rgba(239, 68, 68, 0.12);
    --red-border: rgba(239, 68, 68, 0.3);
    --red-glow: rgba(239, 68, 68, 0.5);
    --purple: #a855f7;
    --purple-glow: rgba(168, 85, 247, 0.4);
    --radius: 10px;
    --radius-sm: 6px;

    /* Spacing scale */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 12px;
    --space-lg: 16px;
    --space-xl: 24px;
    --space-2xl: 32px;

    /* Shadow system */
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.25);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.35);
    --shadow-lg: 0 4px 24px rgba(0,0,0,0.45);
    --shadow-glow: 0 0 16px var(--accent-dim);
    --shadow-inset: inset 0 1px 0 rgba(255,255,255,0.04);

    /* Animation timings */
    --duration-fast: 0.15s;
    --duration-normal: 0.25s;
    --duration-slow: 0.4s;
    --ease-out: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);

    /* Disabled state */
    --opacity-disabled: 0.4;

    /* Extra text/bg colors */
    --text-bright: #e8e8f8;
    --bg-gradient-dark: #1a1a3e;

    --font-arcade: 'VT323', monospace;
    --font-body: 'Inter', -apple-system, sans-serif;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-deep);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    padding: var(--space-md) var(--space-md);
    background-image:
        radial-gradient(ellipse at 15% 20%, rgba(0, 212, 255, 0.05) 0%, transparent 60%),
        radial-gradient(ellipse at 85% 80%, rgba(168, 85, 247, 0.05) 0%, transparent 60%),
        radial-gradient(ellipse at 50% 50%, rgba(0, 212, 255, 0.02) 0%, transparent 80%);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

.container {
    max-width: 960px;
    width: 100%;
    position: relative;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

/* Screen shake utility (applied via JS) */
.screen-shake {
    animation: screenShake 0.4s ease-out;
}

@keyframes screenShake {
    0% { transform: translate(0, 0); }
    10% { transform: translate(-4px, 2px); }
    20% { transform: translate(4px, -2px); }
    30% { transform: translate(-3px, -1px); }
    40% { transform: translate(3px, 1px); }
    50% { transform: translate(-2px, 1px); }
    60% { transform: translate(2px, -1px); }
    70% { transform: translate(-1px, 0); }
    80% { transform: translate(1px, 0); }
    100% { transform: translate(0, 0); }
}

/* Damage flash overlay (applied via JS) */
.damage-flash::before {
    content: '';
    position: fixed;
    inset: 0;
    background: radial-gradient(ellipse at center, rgba(239, 68, 68, 0.15), transparent 70%);
    pointer-events: none;
    z-index: 9998;
    animation: damageFlashAnim 0.5s ease-out forwards;
}

@keyframes damageFlashAnim {
    0% { opacity: 1; }
    100% { opacity: 0; }
}

/* Gain flash overlay */
.gain-flash::before {
    content: '';
    position: fixed;
    inset: 0;
    background: radial-gradient(ellipse at center, rgba(34, 197, 94, 0.1), transparent 70%);
    pointer-events: none;
    z-index: 9998;
    animation: gainFlashAnim 0.5s ease-out forwards;
}

@keyframes gainFlashAnim {
    0% { opacity: 1; }
    100% { opacity: 0; }
}

/*  SCANLINE (very subtle)  */
.container::after {
    content: '';
    position: fixed;
    inset: 0;
    background: repeating-linear-gradient(
            0deg,
            transparent,
            transparent 3px,
            rgba(0, 0, 0, 0.015) 3px,
            rgba(0, 0, 0, 0.015) 6px
    );
    pointer-events: none;
    z-index: 9999;
}

/*  TYPOGRAPHY  */
h1 {
    font-family: var(--font-arcade);
    font-size: 2.4rem;
    font-weight: 400;
    color: var(--accent);
    text-shadow: 0 0 20px var(--accent-glow), 0 0 60px rgba(0, 212, 255, 0.15);
    letter-spacing: 3px;
    line-height: 1.2;
}

h2 {
    font-family: var(--font-arcade);
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--text);
    letter-spacing: 1px;
    line-height: 1.3;
}

h3 {
    font-family: var(--font-arcade);
    font-size: 1.1rem;
    font-weight: 400;
    color: var(--text-muted);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: var(--space-md);
}

p {
    margin-bottom: var(--space-xs);
    font-size: 0.9rem;
}

/*  SHARED BUTTON & INPUT STYLES  */
form input[type="text"] {
    width: 100%;
    background: var(--bg-panel);
    border: 2px solid var(--border);
    color: var(--text);
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius);
    font-size: 1rem;
    font-family: var(--font-body);
    text-align: center;
    transition: all var(--duration-normal) ease;
}

form input[type="text"]::placeholder {
    color: var(--text-dim);
}

form input[type="text"]:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: var(--shadow-glow), 0 0 32px rgba(0, 212, 255, 0.06);
    background: var(--bg-panel-alt);
}

.btn-primary {
    font-family: var(--font-arcade);
    font-size: 1.3rem;
    background: var(--accent);
    color: var(--bg-deep);
    border: none;
    padding: 14px 40px;
    border-radius: var(--radius);
    cursor: pointer;
    letter-spacing: 2px;
    transition: all var(--duration-normal) ease;
    text-decoration: none;
    display: inline-block;
    font-weight: 400;
    position: relative;
    overflow: hidden;
}

.btn-primary:hover {
    background: #00b8d4;
    box-shadow: 0 0 24px var(--accent-glow), 0 0 48px rgba(0, 212, 255, 0.15);
    transform: translateY(-2px);
}

.btn-primary:active {
    transform: translateY(1px);
    box-shadow: 0 0 12px var(--accent-dim);
    transition: all var(--duration-fast) ease;
}

/* ANIMATIONS */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(6px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: translateY(8px) scale(0.97);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes glowPulse {
    0%, 100% {
        opacity: 0.6;
    }
    50% {
        opacity: 1;
    }
}

@keyframes pulseGreen {
    0% {
        box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.5);
    }
    50% {
        box-shadow: 0 0 8px 4px rgba(34, 197, 94, 0.3);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(34, 197, 94, 0);
    }
}

@keyframes pulseRed {
    0% {
        box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.5);
    }
    50% {
        box-shadow: 0 0 8px 4px rgba(239, 68, 68, 0.3);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(239, 68, 68, 0);
    }
}

/* Shimmer effect for stat bar fills */
@keyframes barShimmer {
    0% {
        background-position: -200% center;
    }
    100% {
        background-position: 200% center;
    }
}

/* Floating stat change indicator */
@keyframes floatStatChange {
    0% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
    70% {
        opacity: 0.8;
        transform: translateY(-24px) scale(1.1);
    }
    100% {
        opacity: 0;
        transform: translateY(-36px) scale(0.9);
    }
}

.stat-change-float {
    position: absolute;
    font-family: var(--font-arcade);
    font-size: 0.9rem;
    letter-spacing: 1px;
    pointer-events: none;
    z-index: 100;
    animation: floatStatChange 0.8s ease-out forwards;
    text-shadow: 0 0 8px currentColor;
}

.stat-change-float--positive {
    color: var(--green);
}

.stat-change-float--negative {
    color: var(--red);
}

/* Sparkle burst */
@keyframes sparkleBurst {
    0% {
        opacity: 0;
        transform: scale(0) rotate(0deg);
    }
    50% {
        opacity: 1;
        transform: scale(1.2) rotate(180deg);
    }
    100% {
        opacity: 0;
        transform: scale(0.5) rotate(360deg);
    }
}

/* Turn counter tick animation */
@keyframes turnTick {
    0% { transform: scale(1); }
    40% { transform: scale(1.3); color: #fff; text-shadow: 0 0 16px var(--accent-glow-strong); }
    100% { transform: scale(1); }
}

.turn-tick {
    animation: turnTick 0.4s ease-out;
}

.container > * {
    animation: fadeInScale 0.35s ease both;
}

.container > *:nth-child(2) {
    animation-delay: 0.05s;
}

.container > *:nth-child(3) {
    animation-delay: 0.1s;
}

.container > *:nth-child(4) {
    animation-delay: 0.15s;
}

.container > *:nth-child(5) {
    animation-delay: 0.2s;
}

.container > *:nth-child(6) {
    animation-delay: 0.25s;
}

/* Ripple effect for button clicks */
@keyframes rippleEffect {
    0% {
        transform: translate(-50%, -50%) scale(0);
        opacity: 0.5;
    }
    100% {
        transform: translate(-50%, -50%) scale(4);
        opacity: 0;
    }
}

.btn-ripple {
    position: absolute;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    background: rgba(0, 212, 255, 0.3);
    pointer-events: none;
    animation: rippleEffect 0.5s ease-out forwards;
}

/*  RESPONSIVE BASE  */
@media (min-width: 769px) {
    body {
        padding: var(--space-xl) var(--space-xl);
    }

    .container {
        gap: var(--space-lg);
    }
}

@media (max-width: 600px) {
    body {
        padding: var(--space-sm) var(--space-sm);
    }

    .container {
        gap: var(--space-sm);
    }

    h1 {
        font-size: 1.8rem;
        letter-spacing: 1px;
    }

    h2 {
        font-size: 1.2rem;
    }
}