* {
    box-sizing: border-box;
}

:root {
    --skills-bg: #07111f;
    --skills-panel: rgba(11, 21, 37, 0.88);
    --skills-panel-border: rgba(255, 255, 255, 0.12);
    --skills-text: #f6f3ea;
    --skills-muted: rgba(246, 243, 234, 0.7);
    --skills-accent: #84ffb9;
    --skills-accent-2: #ffd56c;
    --skills-danger: #ff9a85;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: "Trebuchet MS", "Segoe UI", sans-serif;
    color: var(--skills-text);
    background:
        radial-gradient(circle at top left, rgba(132, 255, 185, 0.14), transparent 24%),
        radial-gradient(circle at top right, rgba(255, 213, 108, 0.14), transparent 28%),
        linear-gradient(180deg, #0a1627, var(--skills-bg));
}

header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 18px;
    padding: 18px 16px 8px;
    flex-wrap: wrap;
}

header img {
    filter: drop-shadow(0 12px 18px rgba(0, 0, 0, 0.24));
}

header h1 {
    margin: 0;
    font-size: 24px;
}

header a {
    color: var(--skills-text);
    text-decoration: none;
}

header a:hover {
    color: var(--skills-accent);
}

main {
    width: min(1180px, calc(100vw - 24px));
    margin: 0 auto;
    padding: 16px 0 32px;
}

.hero,
.panel {
    background: var(--skills-panel);
    border: 1px solid var(--skills-panel-border);
    border-radius: 24px;
    box-shadow: 0 24px 56px rgba(0, 0, 0, 0.24);
    backdrop-filter: blur(16px);
}

.hero {
    padding: 24px;
    margin-bottom: 18px;
}

.hero h2,
.panel h3 {
    margin-top: 0;
}

.hero p,
.panel p,
.panel label,
.panel li {
    color: var(--skills-muted);
    line-height: 1.45;
}

.hero-grid,
.page-grid {
    display: grid;
    gap: 18px;
}

.hero-grid {
    grid-template-columns: 1.25fr 0.75fr;
    align-items: start;
}

.page-grid {
    grid-template-columns: 1fr 1fr;
}

.hero-card {
    padding: 18px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.currency-card strong {
    display: block;
    font-size: 36px;
    color: var(--skills-accent-2);
    margin-top: 10px;
}

.panel {
    padding: 20px;
}

.message {
    min-height: 24px;
    margin-top: 12px;
    font-weight: 700;
}

.message.error {
    color: var(--skills-danger);
}

.message.success {
    color: var(--skills-accent);
}

.mode-toggle {
    display: inline-flex;
    gap: 10px;
    padding: 6px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.06);
}

.mode-btn,
.action-btn,
.chip-btn {
    border: none;
    border-radius: 999px;
    padding: 10px 16px;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.mode-btn:hover,
.action-btn:hover,
.chip-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 12px 20px rgba(0, 0, 0, 0.18);
}

.mode-btn {
    background: transparent;
    color: var(--skills-text);
}

.mode-btn.active,
.action-btn,
.chip-btn.active {
    background: linear-gradient(135deg, var(--skills-accent), var(--skills-accent-2));
    color: #0c1320;
}

.shop-grid,
.skills-grid,
.loadout-grid {
    display: grid;
    gap: 14px;
}

.shop-grid,
.skills-grid {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.loadout-grid {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.skill-card {
    padding: 16px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.skill-card h4,
.loadout-card h4 {
    margin: 0 0 10px;
}

.skill-meta {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 10px;
}

.skill-badge {
    padding: 5px 10px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    font-size: 13px;
    color: var(--skills-text);
}

.action-btn {
    background: linear-gradient(135deg, var(--skills-accent), var(--skills-accent-2));
    color: #08101c;
}

.action-btn:disabled,
.chip-btn:disabled {
    cursor: not-allowed;
    box-shadow: none;
    transform: none;
    background: rgba(255, 255, 255, 0.12);
    color: rgba(255, 255, 255, 0.56);
}

.control-grid {
    display: grid;
    gap: 14px;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    margin-top: 16px;
}

.control-card,
.loadout-card {
    padding: 14px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.control-card input,
.control-card select {
    width: 100%;
    margin-top: 8px;
    padding: 10px 12px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(4, 11, 20, 0.88);
    color: var(--skills-text);
}

.loadout-card {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.tiny-note {
    font-size: 13px;
    color: var(--skills-muted);
}

.rule-row {
    display: grid;
    gap: 10px;
    margin-top: 10px;
}

.rule-row label {
    font-size: 14px;
}

.rule-row input[type="number"] {
    width: 100%;
    margin-top: 6px;
    padding: 8px 10px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(4, 11, 20, 0.88);
    color: var(--skills-text);
}

@media (max-width: 900px) {
    .hero-grid,
    .page-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 560px) {
    main {
        width: min(100vw - 12px, 100%);
    }

    .hero,
    .panel {
        padding: 16px;
        border-radius: 18px;
    }

    .mode-toggle {
        width: 100%;
        flex-direction: column;
        border-radius: 18px;
    }
}