:root {
    --primary-color: #ff7eb3;
    --secondary-color: #7afcff;
    --glass-bg: rgba(255, 255, 255, 0.15);
    --glass-border: rgba(255, 255, 255, 0.3);
    --text-color: #ffffff;
    --font-main: 'Outfit', sans-serif;
    --font-kr: 'Noto Sans KR', sans-serif;
}

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

body {
    font-family: var(--font-main), var(--font-kr);
    height: 100vh;
    overflow: hidden;
    position: relative;
    background: #000;
}

/* Background Image with Overlay */
body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../assets/bg.png') no-repeat center center/cover;
    filter: blur(3px) brightness(0.8);
    animation: zoomIn 20s infinite alternate linear;
    z-index: -1;
}

@keyframes zoomIn {
    from { transform: scale(1); }
    to { transform: scale(1.1); }
}

.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
    backdrop-filter: blur(0px); /* Just in case needed */
}

.login-box {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    text-align: center;
    color: var(--text-color);
    width: 90%;
    max-width: 400px;
    transform: translateY(20px);
    opacity: 0;
    animation: fadeUp 1s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

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

.login-box h1 {
    font-size: 2.5rem;
    letter-spacing: 2px;
    margin-bottom: 0.5rem;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
    background: linear-gradient(to right, #fff, #ff7eb3);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.login-box p {
    font-size: 1rem;
    margin-bottom: 2rem;
    color: rgba(255, 255, 255, 0.8);
}

.input-group {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

input {
    width: 100%;
    padding: 12px 20px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    background: rgba(0, 0, 0, 0.2);
    color: white;
    font-size: 1rem;
    outline: none;
    transition: all 0.3s ease;
    text-align: center;
    font-family: inherit;
}

input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

input:focus {
    border-color: var(--secondary-color);
    background: rgba(0, 0, 0, 0.4);
    box-shadow: 0 0 15px rgba(122, 252, 255, 0.3);
}

button {
    width: 100%;
    padding: 12px;
    border-radius: 10px;
    border: none;
    background: linear-gradient(45deg, var(--primary-color), #ff5e9a);
    color: white;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 126, 179, 0.4);
}

button:active {
    transform: translateY(1px);
}

.error-msg {
    color: #ff4757;
    margin-top: 1rem;
    font-size: 0.9rem;
    text-shadow: 0 0 5px rgba(0,0,0,0.5);
    background: rgba(0,0,0,0.2);
    padding: 5px;
    border-radius: 5px;
}

.shake {
    animation: shake 0.5s cubic-bezier(.36,.07,.19,.97) both;
}

@keyframes shake {
  10%, 90% { transform: translate3d(-1px, 0, 0); }
  20%, 80% { transform: translate3d(2px, 0, 0); }
  30%, 50%, 70% { transform: translate3d(-4px, 0, 0); }
  40%, 60% { transform: translate3d(4px, 0, 0); }
}