@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700;900&family=Rajdhani:wght@400;600&display=swap');

:root {
    --bg:         #0a0a0f;
    --surface:    #12121a;
    --card:       #1a1a2e;
    --neon-green: #00ff88;
    --neon-blue:  #00d4ff;
    --neon-pink:  #ff006e;
    --white:      #ffffff;
    --muted:      #8888aa;
    --border:     #2a2a4a;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg);
    color: var(--white);
    font-family: 'Rajdhani', sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    background-image: 
        radial-gradient(ellipse at 20% 20%, rgba(0,255,136,0.05) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(0,212,255,0.05) 0%, transparent 50%);
}

/* ── HEADER ──────────────────────────────*/
header {
    text-align: center;
    padding: 4rem 2rem 2rem;
    position: relative;
}

header h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 900;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--white);
    text-shadow: 
        0 0 10px var(--neon-green),
        0 0 30px var(--neon-green),
        0 0 60px var(--neon-green);
    animation: flicker 4s infinite;
}

header p {
    font-size: 1.1rem;
    color: var(--muted);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-top: 0.8rem;
}

/* ── FLICKER ANIMATION ───────────────────*/
@keyframes flicker {
    0%, 95%, 100% { opacity: 1; }
    96% { opacity: 0.8; }
    97% { opacity: 1; }
    98% { opacity: 0.6; }
    99% { opacity: 1; }
}

/* ── FORM SECTION ────────────────────────*/
#form {
    background-color: var(--card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 2.5rem;
    width: 100%;
    max-width: 500px;
    margin: 2rem auto;
    position: relative;
    box-shadow: 
        0 0 20px rgba(0,255,136,0.1),
        inset 0 0 20px rgba(0,0,0,0.3);
}

#form::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--neon-green), var(--neon-blue), var(--neon-pink));
    z-index: -1;
    opacity: 0.3;
}

/* ── FORM GROUPS ─────────────────────────*/
.dice-number,
.dice-type {
    margin-bottom: 1.8rem;
}

label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--neon-green);
    margin-bottom: 0.6rem;
}

/* ── INPUTS ──────────────────────────────*/
input[type="number"],
select {
    width: 100%;
    background-color: var(--surface);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 0.9rem 1rem;
    color: var(--white);
    font-family: 'Rajdhani', sans-serif;
    font-size: 1rem;
    letter-spacing: 0.05em;
    outline: none;
    transition: border-color 0.3s, box-shadow 0.3s;
    cursor: pointer;
}

input[type="number"]:focus,
select:focus {
    border-color: var(--neon-green);
    box-shadow: 0 0 10px rgba(0,255,136,0.3);
}

select option {
    background-color: var(--surface);
}

/* ── ROLL BUTTON ─────────────────────────*/
#rollButton {
    width: 100%;
    background: transparent;
    border: 2px solid var(--neon-green);
    border-radius: 4px;
    color: var(--neon-green);
    font-family: 'Orbitron', sans-serif;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    padding: 1rem;
    cursor: pointer;
    margin-top: 0.5rem;
    position: relative;
    overflow: hidden;
    transition: color 0.3s, box-shadow 0.3s;
}

#rollButton::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--neon-green);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
    z-index: -1;
}

#rollButton:hover {
    color: var(--bg);
    box-shadow: 0 0 20px rgba(0,255,136,0.5);
}

#rollButton:hover::before {
    transform: scaleX(1);
}

#rollButton:active {
    transform: scale(0.98);
}

/* ── RESULTS SECTION ─────────────────────*/
#results {
    width: 100%;
    max-width: 500px;
    margin: 0 auto 3rem;
    background-color: var(--card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 2rem;
    box-shadow: 0 0 20px rgba(0,212,255,0.1);
}

#results h2 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--neon-blue);
    text-shadow: 0 0 10px var(--neon-blue);
    margin-bottom: 1rem;
    padding-bottom: 0.8rem;
    border-bottom: 1px solid var(--border);
}

#rollResults {
    color: var(--muted);
    font-size: 1rem;
    letter-spacing: 0.05em;
    line-height: 1.8;
}

/* ── FOOTER ──────────────────────────────*/
footer {
    margin-top: auto;
    padding: 2rem;
    text-align: center;
    color: var(--border);
    font-size: 0.8rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}