:root {
    --bg-main: #090d16;
    --card-bg: #111827;
    --border-color: #1f2937;
    --accent-primary: #10b981;
    --accent-buy: #f87171;
    --accent-sell: #60a5fa;
}

body {
    background-color: var(--bg-main);
    color: #f3f4f6;
    font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, sans-serif;
    -webkit-font-smoothing: antialiased;
}

.card {
    border-radius: 1rem;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.2);
}
::-webkit-scrollbar-thumb {
    background: #374151;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #4b5563;
}

/* Switch Toggle */
.switch-toggle {
    position: relative;
    display: inline-block;
    width: 40px;
    height: 22px;
}
.switch-toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}
.slider {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: rgba(255, 255, 255, 0.15);
    transition: .25s;
    border-radius: 22px;
}
.slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .25s;
    border-radius: 50%;
}
input:checked + .slider {
    background-color: var(--accent-primary);
}
input:checked + .slider:before {
    transform: translateX(18px);
}

/* Chat bubble styling */
.chat-history-box {
    scrollbar-width: thin;
}

/* Login Page Styling */
.login-body {
    background-color: var(--bg-main);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 1rem;
}
.login-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 1.5rem;
    padding: 2.5rem;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}
.login-header {
    text-align: center;
    margin-bottom: 2rem;
}
.brand-logo {
    font-size: 2.2rem;
    margin-bottom: 0.5rem;
}
.login-header h2 {
    font-size: 1.4rem;
    font-weight: 800;
    color: #fff;
}
.login-header p {
    font-size: 0.85rem;
    color: #9ca3af;
    margin-top: 0.25rem;
}
.input-group {
    margin-bottom: 1.25rem;
}
.input-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: #9ca3af;
    margin-bottom: 0.5rem;
}
.input-group input {
    width: 100%;
    background: #030712;
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 0.75rem 1rem;
    color: #fff;
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.2s;
}
.input-group input:focus {
    border-color: var(--accent-primary);
}
.error-text {
    color: #f87171;
    font-size: 0.82rem;
    min-height: 1.25rem;
    margin-bottom: 1rem;
    line-height: 1.4;
}
.btn-block {
    width: 100%;
    padding: 0.85rem;
    border-radius: 0.75rem;
    font-weight: 700;
    font-size: 0.95rem;
    background: var(--accent-primary);
    color: #fff;
    border: none;
    cursor: pointer;
    transition: filter 0.2s;
}
.btn-block:hover {
    filter: brightness(1.1);
}