:root {
    --bg-color: #0f0f1a;
    --card-bg: rgba(255, 255, 255, 0.05);
    --text-color: #e0e0e0;
    --accent-color: #00c0ff;
    --glow-color: rgba(56, 189, 248, 0.5);
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Inter', 'Segoe UI', Roboto, Arial, sans-serif;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

/* --- ANIMATED BACKGROUND --- */
.bga-03 {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}
.bga-03__scene {
    width: 100%;
    height: 100%;
    position: relative;
    background: radial-gradient(ellipse at bottom, #1b2735 0%, #090a0f 80%);
}
.bga-03__stars, .bga-03__stars2, .bga-03__stars3 {
    position: absolute;
    top: 0;
    left: 0;
    width: 1px;
    height: 1px;
    background: transparent;
    border-radius: 50%;
}
.bga-03__stars {
    box-shadow: 120px 340px #fff, 700px 120px #fff, 300px 560px #fff, 980px 410px #fff, 540px 80px #fff, 1300px 300px #fff, 220px 760px #fff, 860px 640px #fff, 1500px 540px #fff, 60px 200px #fff, 1100px 700px #fff, 400px 250px #fff, 760px 480px #fff, 1700px 180px #fff, 1000px 60px #fff;
    animation: bga-03-twinkle 4s ease-in-out infinite alternate, bga-03-scrollUp 90s linear infinite;
}
.bga-03__stars2 {
    box-shadow: 200px 500px #cfe8ff, 640px 300px #cfe8ff, 1200px 150px #cfe8ff, 480px 700px #cfe8ff, 900px 520px #cfe8ff, 1450px 380px #cfe8ff, 100px 640px #cfe8ff, 1600px 700px #cfe8ff, 340px 120px #cfe8ff, 1050px 440px #cfe8ff;
    width: 2px; height: 2px;
    animation: bga-03-twinkle 6s ease-in-out infinite alternate, bga-03-scrollUp 130s linear infinite;
}
.bga-03__stars3 {
    box-shadow: 420px 360px #fff7d6, 880px 200px #fff7d6, 1350px 600px #fff7d6, 160px 80px #fff7d6, 1550px 280px #fff7d6, 720px 700px #fff7d6, 60px 460px #fff7d6;
    width: 3px; height: 3px;
    animation: bga-03-twinkle 5s ease-in-out infinite alternate, bga-03-scrollUp 180s linear infinite;
}
.bga-03__nebula {
    position: absolute;
    inset: -10%;
    background: radial-gradient(35% 40% at 25% 30%, rgba(98,71,170,0.35), transparent 60%), radial-gradient(40% 45% at 75% 65%, rgba(36,120,160,0.30), transparent 60%), radial-gradient(30% 30% at 60% 20%, rgba(170,60,120,0.22), transparent 60%);
    filter: blur(20px);
    animation: bga-03-nebulaShift 40s ease-in-out infinite alternate;
}
@keyframes bga-03-twinkle { to { opacity: 1; } from { opacity: 0.3; } }
@keyframes bga-03-scrollUp { from { transform: translateY(0); } to { transform: translateY(-800px); } }
@keyframes bga-03-nebulaShift { 0% { transform: translate(-2%, -1%) scale(1.05); } 100% { transform: translate(2%, 2%) scale(1.15); } }

/* --- LOGIN CARD --- */
.login-card {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 400px;
    padding: 40px;
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
    text-align: center;
    animation: fadeIn 0.8s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.login-card h1 {
    font-size: 28px;
    margin-bottom: 10px;
    color: #fff;
    font-weight: 700;
}

.login-card p {
    color: #bbb;
    font-size: 14px;
    margin-bottom: 30px;
}

.input-group {
    position: relative;
    margin-bottom: 20px;
    text-align: left;
}

.input-group i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: #888;
    transition: color 0.3s;
    pointer-events: none;
}

.input-group input {
    width: 100%;
    padding: 12px 15px 12px 45px;
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    color: #fff;
    font-size: 15px;
    outline: none;
    transition: all 0.3s;
}

.input-group input:focus {
    border-color: var(--accent-color);
    background: rgba(255, 255, 255, 0.12);
    box-shadow: 0 0 0 3px var(--glow-color);
}

.input-group input:focus + i {
    color: var(--accent-color);
}

.login-btn {
    width: 100%;
    padding: 14px;
    background: var(--accent-color);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 4px 15px var(--glow-color);
}

.login-btn:hover {
    filter: brightness(1.1);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--glow-color);
}

.error-msg {
    background: rgba(192, 57, 43, 0.2);
    color: #ff8a80;
    padding: 10px;
    border-radius: 8px;
    font-size: 13px;
    margin-bottom: 20px;
    border: 1px solid rgba(192, 57, 43, 0.3);
}

.footer-text {
    margin-top: 25px;
    font-size: 12px;
    color: #666;
}