#app-preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: #0f172a;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #38bdf8;
    font-family: 'Inter', monospace;
}

.tech-loader-container {
    position: relative;
    width: 80px;
    height: 80px;
    margin-bottom: 32px;
}

.tech-loader-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 2px solid transparent;
    border-top-color: #38bdf8;
    border-radius: 50%;
    animation: spin 1.5s cubic-bezier(0.17, 0.67, 0.83, 0.67) infinite;
}

.tech-loader-ring:nth-child(2) {
    width: 70%;
    height: 70%;
    top: 15%;
    left: 15%;
    border-top-color: #0ea5e9;
    animation: spin-reverse 1s linear infinite;
}

.tech-loader-core {
    position: absolute;
    width: 40%;
    height: 40%;
    top: 30%;
    left: 30%;
    background: #38bdf8;
    border-radius: 50%;
    box-shadow: 0 0 20px #38bdf8;
    animation: pulse 2s ease-in-out infinite;
}

.tech-loader-text {
    font-size: 0.875rem;
    letter-spacing: 0.2em;
    margin-bottom: 16px;
    opacity: 0.8;
    text-transform: uppercase;
}

.tech-loader-bar {
    width: 200px;
    height: 2px;
    background: rgba(56, 189, 248, 0.2);
    border-radius: 2px;
    overflow: hidden;
    position: relative;
}

.tech-loader-progress {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 50%;
    background: #38bdf8;
    box-shadow: 0 0 10px #38bdf8;
    animation: slide 1.5s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes spin-reverse {
    to { transform: rotate(-360deg); }
}

@keyframes pulse {
    0%, 100% { transform: scale(0.8); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 1; }
}

@keyframes slide {
    0% { left: -50%; width: 50%; }
    50% { left: 25%; width: 50%; }
    100% { left: 100%; width: 20%; }
}