:root {
    --bg-color: #0c0c0c;
    --card-bg: rgba(255, 255, 255, 0.05);
    --border-color: rgba(255, 255, 255, 0.1);
    --accent-color: #ffffff;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.bg-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 50%, #1a1a1a 0%, #0c0c0c 100%);
    z-index: -1;
}

.container {
    width: 100%;
    max-width: 450px;
    padding: 40px;
    text-align: center;
    backdrop-filter: blur(10px);
    border-radius: 24px;
    animation: fadeIn 1s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.logo h1 {
    font-size: 2.5rem;
    font-weight: 600;
    letter-spacing: 0.2rem;
    margin-bottom: 8px;
}

.logo p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    letter-spacing: 0.3rem;
    margin-bottom: 48px;
}

.selection-box {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.dropdown-group {
    text-align: left;
}

.dropdown-group label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
    margin-left: 4px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.custom-select {
    position: relative;
    user-select: none;
}

.select-trigger {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 16px 20px;
    border-radius: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: var(--transition);
}

.select-trigger:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
}

.select-trigger span {
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 12px;
}

.arrow {
    width: 20px;
    height: 20px;
    fill: var(--text-secondary);
    transition: var(--transition);
}

.custom-select.active .arrow {
    transform: rotate(180deg);
}

.custom-select.active .select-trigger {
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
    background: rgba(255, 255, 255, 0.08);
}

.options {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #161616;
    border: 1px solid var(--border-color);
    border-top: none;
    border-bottom-left-radius: 12px;
    border-bottom-right-radius: 12px;
    max-height: 250px;
    overflow-y: auto;
    z-index: 10;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
}

.custom-select.active .options {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.option {
    padding: 14px 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: var(--transition);
    font-size: 0.95rem;
}

.option:hover {
    background: rgba(255, 255, 255, 0.05);
}

.option .fi {
    border-radius: 2px;
    width: 20px;
    height: 15px;
    object-fit: cover;
}

.btn {
    background: var(--accent-color);
    color: var(--bg-color);
    border: none;
    padding: 18px;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 1px;
    cursor: pointer;
    margin-top: 12px;
    transition: var(--transition);
}

.btn:hover:not(.disabled) {
    transform: scale(1.02);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.4);
}

.btn.disabled {
    opacity: 0.3;
    cursor: not-allowed;
    background: #333;
    color: #666;
}

footer {
    margin-top: 48px;
    font-size: 0.7rem;
    color: var(--text-secondary);
    opacity: 0.6;
}

/* Custom Scrollbar */
.options::-webkit-scrollbar {
    width: 4px;
}

.options::-webkit-scrollbar-track {
    background: transparent;
}

.options::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}