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

:root {
    --space-void: #020713;
    --space-deep: #061326;
    --space-panel: rgba(5, 17, 34, 0.86);
    --space-panel-strong: rgba(3, 10, 24, 0.94);
    --cyan-core: #67fff4;
    --cyan-neon: #08dff7;
    --blue-neon: #248dff;
    --mint-neon: #a9ffd6;
    --star-gold: #e8e6a0;
    --danger-red: #ff4164;
    --success-green: #65ff9f;
    --text-light: #eaffff;
    --text-muted: #8fb9c9;
    --line-muted: rgba(103, 255, 244, 0.22);
    --panel-radius: 22px;
    --font-display: 'Segoe UI', 'Arial', sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    font-family: var(--font-display);
    background:
        radial-gradient(circle at 50% -10%, rgba(103, 255, 244, 0.26), transparent 24rem),
        radial-gradient(circle at 14% 78%, rgba(127, 255, 189, 0.16), transparent 18rem),
        radial-gradient(circle at 86% 40%, rgba(36, 141, 255, 0.2), transparent 20rem),
        linear-gradient(180deg, var(--space-deep), var(--space-void) 62%);
    color: var(--text-light);
    overflow-x: hidden;
    position: relative;
}

body::before,
body::after {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: -2;
}

body::before {
    background-image:
        radial-gradient(circle, rgba(234, 255, 255, 0.88) 0 1px, transparent 1.6px),
        radial-gradient(circle, rgba(103, 255, 244, 0.62) 0 1px, transparent 1.7px),
        radial-gradient(circle, rgba(232, 230, 160, 0.58) 0 1px, transparent 1.8px);
    background-size: 94px 94px, 151px 151px, 217px 217px;
    background-position: 0 0, 37px 53px, 92px 15px;
    opacity: 0.52;
}

body::after {
    background:
        linear-gradient(transparent 0 96%, rgba(103, 255, 244, 0.08) 100%),
        linear-gradient(90deg, transparent 0 96%, rgba(103, 255, 244, 0.06) 100%);
    background-size: 48px 48px;
    -webkit-mask-image: radial-gradient(circle at 50% 40%, black, transparent 72%);
    mask-image: radial-gradient(circle at 50% 40%, black, transparent 72%);
    opacity: 0.45;
    z-index: -1;
}

/* Background Particles */
.background-particles {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    overflow: hidden;
}

.background-particles::before,
.background-particles::after {
    content: '';
    position: absolute;
    inset: -20%;
    background:
        radial-gradient(circle at 50% 10%, rgba(103, 255, 244, 0.32), transparent 12rem),
        radial-gradient(circle at 8% 24%, rgba(169, 255, 214, 0.16), transparent 17rem),
        radial-gradient(circle at 90% 18%, rgba(8, 223, 247, 0.12), transparent 16rem),
        radial-gradient(circle at 70% 88%, rgba(36, 141, 255, 0.18), transparent 20rem);
    filter: blur(2px);
    animation: nebulaDrift 24s ease-in-out infinite alternate;
}

.background-particles::after {
    background-image:
        radial-gradient(circle, rgba(103, 255, 244, 0.78) 0 1px, transparent 2px),
        radial-gradient(circle, rgba(255, 255, 212, 0.7) 0 1px, transparent 2px);
    background-size: 180px 180px, 260px 260px;
    background-position: 12px 25px, 92px 135px;
    filter: drop-shadow(0 0 6px rgba(103, 255, 244, 0.9));
    opacity: 0.36;
    animation-duration: 34s;
}

@keyframes nebulaDrift {
    from { transform: translate3d(-1.2rem, -0.8rem, 0) scale(1); }
    to { transform: translate3d(1.8rem, 1.4rem, 0) scale(1.05); }
}

.container {
    width: min(100%, 980px);
    margin: 0 auto;
    padding: 28px 22px 24px;
    position: relative;
    z-index: 1;
}

/* Header */
header {
    text-align: center;
    margin-bottom: 34px;
    padding: 74px 20px 34px;
    position: relative;
}

header::before {
    content: '✦';
    position: absolute;
    top: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 118px;
    height: 118px;
    display: grid;
    place-items: center;
    font-size: 5.8rem;
    line-height: 1;
    color: var(--cyan-core);
    text-shadow:
        0 0 14px var(--cyan-core),
        0 0 36px rgba(103, 255, 244, 0.82),
        0 0 72px rgba(169, 255, 214, 0.5);
    filter: drop-shadow(0 0 18px rgba(103, 255, 244, 0.65));
}

header::after {
    content: '';
    position: absolute;
    top: 61px;
    left: 50%;
    width: min(84vw, 780px);
    height: 2px;
    transform: translateX(-50%);
    background: linear-gradient(90deg, transparent, var(--cyan-neon) 18%, var(--mint-neon) 50%, var(--cyan-neon) 82%, transparent);
    box-shadow: 0 0 12px var(--cyan-neon), 0 0 32px rgba(103, 255, 244, 0.8);
}

.header-content {
    position: relative;
    z-index: 1;
}

.header-content h1 {
    font-size: clamp(2.15rem, 7vw, 4.85rem);
    font-weight: 800;
    letter-spacing: clamp(0.22rem, 1.25vw, 0.82rem);
    text-transform: uppercase;
    background: linear-gradient(180deg, #ffffff 6%, var(--mint-neon) 40%, var(--cyan-neon) 78%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 30px rgba(103, 255, 244, 0.48);
    margin-bottom: 6px;
}

.header-content h2 {
    font-size: clamp(1.05rem, 3.3vw, 1.85rem);
    color: var(--text-light);
    font-weight: 500;
    letter-spacing: 0.22rem;
    text-transform: uppercase;
    text-shadow: 0 0 18px rgba(103, 255, 244, 0.7);
    margin-bottom: 18px;
}

.season-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 128px;
    padding: 9px 22px;
    border: 1px solid rgba(169, 255, 214, 0.8);
    border-radius: 999px;
    background: linear-gradient(135deg, rgba(103, 255, 244, 0.18), rgba(36, 141, 255, 0.28));
    color: var(--mint-neon);
    font-weight: 800;
    font-size: 0.86rem;
    letter-spacing: 0.18rem;
    box-shadow:
        inset 0 0 16px rgba(103, 255, 244, 0.15),
        0 0 22px rgba(103, 255, 244, 0.36);
}

/* Main Calculator Section */
.calculator-section {
    padding: 8px 0 20px;
}

.calculator-card {
    position: relative;
    overflow: hidden;
    padding: clamp(28px, 5vw, 52px);
    background:
        linear-gradient(180deg, rgba(8, 27, 48, 0.82), rgba(2, 8, 20, 0.94)),
        radial-gradient(circle at 50% 0%, rgba(103, 255, 244, 0.14), transparent 30rem);
    border: 1px solid rgba(103, 255, 244, 0.88);
    border-radius: var(--panel-radius);
    clip-path: polygon(0 28px, 28px 0, calc(100% - 28px) 0, 100% 28px, 100% calc(100% - 28px), calc(100% - 28px) 100%, 28px 100%, 0 calc(100% - 28px));
    box-shadow:
        0 0 0 1px rgba(169, 255, 214, 0.26),
        0 0 28px rgba(8, 223, 247, 0.58),
        0 0 76px rgba(36, 141, 255, 0.28),
        inset 0 0 36px rgba(103, 255, 244, 0.08);
    backdrop-filter: blur(16px) saturate(130%);
}

.calculator-card::before,
.calculator-card::after {
    content: '';
    position: absolute;
    pointer-events: none;
}

.calculator-card::before {
    inset: 18px;
    border: 1px solid var(--line-muted);
    border-radius: 15px;
    clip-path: polygon(0 18px, 18px 0, calc(100% - 18px) 0, 100% 18px, 100% calc(100% - 18px), calc(100% - 18px) 100%, 18px 100%, 0 calc(100% - 18px));
    box-shadow: inset 0 0 28px rgba(103, 255, 244, 0.08);
}

.calculator-card::after {
    top: 0;
    left: 12%;
    right: 12%;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--cyan-core), transparent);
    box-shadow: 0 0 18px var(--cyan-core), 0 0 42px rgba(103, 255, 244, 0.65);
}

.calculator-card > * {
    position: relative;
    z-index: 1;
}

.calculator-card h3 {
    font-size: clamp(1.55rem, 3.8vw, 2.45rem);
    color: var(--cyan-core);
    letter-spacing: 0.16rem;
    text-transform: uppercase;
    margin-bottom: 10px;
    text-shadow: 0 0 16px rgba(103, 255, 244, 0.88), 0 0 42px rgba(36, 141, 255, 0.34);
}

.calculator-subtitle {
    max-width: 620px;
    color: var(--text-muted);
    margin-bottom: 32px;
    font-size: 1rem;
    line-height: 1.6;
}

/* Form Grid */
.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
    margin-bottom: 30px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 9px;
}

.form-group label {
    color: var(--mint-neon);
    font-weight: 800;
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.14rem;
    text-shadow: 0 0 10px rgba(169, 255, 214, 0.48);
}

.form-group input {
    width: 100%;
    padding: 15px 16px;
    background: linear-gradient(180deg, rgba(1, 8, 19, 0.72), rgba(3, 18, 34, 0.86));
    border: 1px solid rgba(103, 255, 244, 0.48);
    border-radius: 12px;
    color: var(--text-light);
    font-size: 1rem;
    font-weight: 650;
    letter-spacing: 0.02rem;
    box-shadow: inset 0 0 18px rgba(8, 223, 247, 0.08), 0 0 0 rgba(8, 223, 247, 0);
    transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease, background 0.25s ease;
}

.form-group input:focus {
    outline: none;
    transform: translateY(-1px);
    border-color: var(--cyan-core);
    background: linear-gradient(180deg, rgba(3, 20, 38, 0.9), rgba(1, 8, 19, 0.96));
    box-shadow:
        inset 0 0 20px rgba(103, 255, 244, 0.12),
        0 0 0 3px rgba(103, 255, 244, 0.12),
        0 0 22px rgba(8, 223, 247, 0.45);
}

.form-group input::placeholder {
    color: rgba(143, 185, 201, 0.72);
}

/* Buttons */
.btn-calculate,
.btn-reset {
    border: 0;
    border-radius: 12px;
    font-weight: 900;
    cursor: pointer;
    transition: transform 0.24s ease, box-shadow 0.24s ease, filter 0.24s ease, background 0.24s ease;
    text-transform: uppercase;
    letter-spacing: 0.18rem;
}

.btn-calculate {
    grid-column: 1 / -1;
    padding: 17px 40px;
    background:
        linear-gradient(90deg, rgba(103, 255, 244, 0), rgba(255, 255, 255, 0.36), rgba(103, 255, 244, 0)) 0 0 / 220% 100%,
        linear-gradient(135deg, var(--cyan-neon), var(--mint-neon) 52%, var(--blue-neon));
    color: #03101f;
    font-size: 1.04rem;
    text-shadow: 0 1px 0 rgba(255, 255, 255, 0.38);
    box-shadow: 0 0 18px rgba(103, 255, 244, 0.5), 0 0 38px rgba(36, 141, 255, 0.28);
}

.btn-calculate:hover,
.btn-calculate:focus-visible {
    transform: translateY(-2px);
    filter: saturate(115%);
    box-shadow: 0 0 26px rgba(103, 255, 244, 0.78), 0 0 58px rgba(36, 141, 255, 0.44);
}

.btn-calculate:active,
.btn-reset:active {
    transform: translateY(1px) scale(0.99);
}

.btn-reset {
    display: block;
    margin: 0 auto;
    padding: 13px 32px;
    background: rgba(255, 65, 100, 0.12);
    border: 1px solid rgba(255, 65, 100, 0.82);
    color: #ff9caf;
    font-size: 0.86rem;
    box-shadow: inset 0 0 16px rgba(255, 65, 100, 0.08), 0 0 18px rgba(255, 65, 100, 0.18);
}

.btn-reset:hover,
.btn-reset:focus-visible {
    background: rgba(255, 65, 100, 0.2);
    box-shadow: inset 0 0 20px rgba(255, 65, 100, 0.12), 0 0 24px rgba(255, 65, 100, 0.35);
}

/* Results Section */
.results-section {
    opacity: 1;
    transition: all 0.3s ease;
}

.results-section.hidden {
    display: none;
}

.results-container {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.result-item {
    padding: 26px 20px;
    border: 1px solid;
    border-radius: 16px;
    text-align: center;
    background: var(--space-panel-strong);
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    box-shadow: inset 0 0 22px rgba(103, 255, 244, 0.08);
}

.result-item h4 {
    font-size: 0.88rem;
    text-transform: uppercase;
    letter-spacing: 0.16rem;
    margin-bottom: 14px;
    color: currentColor;
}

.damage-result {
    background: linear-gradient(180deg, rgba(8, 223, 247, 0.12), rgba(2, 8, 20, 0.86));
    border-color: rgba(103, 255, 244, 0.82);
    color: var(--cyan-core);
    box-shadow: inset 0 0 22px rgba(103, 255, 244, 0.08), 0 0 22px rgba(8, 223, 247, 0.32);
}

.damage-result:hover,
.attack-result:hover {
    transform: translateY(-4px);
}

.damage-result:hover {
    box-shadow: inset 0 0 26px rgba(103, 255, 244, 0.12), 0 0 30px rgba(8, 223, 247, 0.5);
}

.attack-result {
    background: linear-gradient(180deg, rgba(255, 65, 100, 0.1), rgba(2, 8, 20, 0.86));
    border-color: rgba(255, 65, 100, 0.8);
    color: #ff7790;
    box-shadow: inset 0 0 22px rgba(255, 65, 100, 0.08), 0 0 22px rgba(255, 65, 100, 0.28);
}

.attack-result.yes {
    background: linear-gradient(180deg, rgba(101, 255, 159, 0.12), rgba(2, 8, 20, 0.86));
    border-color: rgba(101, 255, 159, 0.82);
    color: var(--success-green);
    box-shadow: inset 0 0 22px rgba(101, 255, 159, 0.08), 0 0 22px rgba(101, 255, 159, 0.3);
}

.attack-result.yes:hover {
    box-shadow: inset 0 0 26px rgba(101, 255, 159, 0.12), 0 0 30px rgba(101, 255, 159, 0.52);
}

.attack-result.no:hover {
    box-shadow: inset 0 0 26px rgba(255, 65, 100, 0.12), 0 0 30px rgba(255, 65, 100, 0.5);
}

.result-value {
    font-size: clamp(2rem, 6vw, 3rem);
    font-weight: 900;
    letter-spacing: 0.04rem;
    text-shadow: 0 0 14px currentColor, 0 0 34px currentColor;
}

/* Footer */
footer {
    text-align: center;
    padding: 32px 20px 10px;
    margin-top: 34px;
    color: var(--text-muted);
    font-size: 0.9rem;
    position: relative;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    width: min(76vw, 620px);
    height: 1px;
    transform: translateX(-50%);
    background: linear-gradient(90deg, transparent, rgba(103, 255, 244, 0.72), transparent);
    box-shadow: 0 0 14px rgba(103, 255, 244, 0.45);
}

footer p {
    margin: 6px 0;
}

footer strong {
    color: var(--mint-neon);
    text-shadow: 0 0 10px rgba(169, 255, 214, 0.55);
}

.visitor-stats {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 7px;
    margin-top: 10px;
    padding: 6px 12px;
    border: 1px solid rgba(103, 255, 244, 0.14);
    border-radius: 999px;
    background: rgba(3, 10, 24, 0.36);
    color: rgba(143, 185, 201, 0.72);
    font-size: 0.72rem;
    letter-spacing: 0.04rem;
}

.visitor-stats strong {
    color: rgba(169, 255, 214, 0.82);
    font-weight: 700;
    text-shadow: none;
}

/* Responsive Design */
@media (max-width: 768px) {
    header {
        padding-top: 64px;
        margin-bottom: 24px;
    }

    header::before {
        width: 96px;
        height: 96px;
        font-size: 4.6rem;
    }

    header::after {
        top: 51px;
    }

    .form-grid,
    .results-container {
        grid-template-columns: 1fr;
    }

    .calculator-card {
        clip-path: polygon(0 20px, 20px 0, calc(100% - 20px) 0, 100% 20px, 100% calc(100% - 20px), calc(100% - 20px) 100%, 20px 100%, 0 calc(100% - 20px));
    }

    .container {
        padding: 18px 14px 20px;
    }
}

@media (max-width: 480px) {
    .header-content h1 {
        letter-spacing: 0.14rem;
    }

    .header-content h2 {
        letter-spacing: 0.12rem;
    }

    .season-badge {
        min-width: 112px;
        padding: 8px 16px;
        font-size: 0.78rem;
    }

    .calculator-card {
        padding: 26px 20px;
    }

    .calculator-card::before {
        inset: 11px;
    }

    .btn-calculate,
    .btn-reset {
        letter-spacing: 0.12rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        scroll-behavior: auto !important;
    }
}