/* style.css - Modern Login Design */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&display=swap');

:root {
    --bg-color: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.7);
    --primary: #3b82f6;
    --primary-glow: rgba(59, 130, 246, 0.5);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --error: #ef4444;
    --success: #10b981;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
}

body {
    background-color: var(--bg-color);
    background-image: 
        radial-gradient(at 0% 0%, rgba(59, 130, 246, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(139, 92, 246, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(59, 130, 246, 0.15) 0px, transparent 50%),
        radial-gradient(at 0% 100%, rgba(139, 92, 246, 0.15) 0px, transparent 50%);
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    position: relative;
}

/* Animated Background Elements */
.bg-shape {
    position: absolute;
    filter: blur(80px);
    z-index: 0;
    opacity: 0.6;
    animation: float 10s infinite ease-in-out;
}

.shape-1 {
    width: 300px;
    height: 300px;
    background: var(--primary);
    top: -50px;
    left: -50px;
    border-radius: 50%;
    animation-delay: 0s;
}

.shape-2 {
    width: 250px;
    height: 250px;
    background: #8b5cf6;
    bottom: -50px;
    right: -50px;
    border-radius: 50%;
    animation-delay: 2s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(30px, -30px); }
}

/* Login Container */
.login-container {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 420px;
    padding: 20px;
}

.login-card {
    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;
    padding: 40px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.login-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 30px 60px -12px rgba(59, 130, 246, 0.2);
    border-color: rgba(59, 130, 246, 0.3);
}

/* Header */
.system-icon {
    font-size: 3rem;
    background: linear-gradient(135deg, #60a5fa, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 20px;
    filter: drop-shadow(0 0 20px rgba(96, 165, 250, 0.3));
}

h1 {
    color: var(--text-main);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 10px;
    line-height: 1.3;
}

.subtitle {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 30px;
}

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

.input-field {
    width: 100%;
    padding: 15px 15px 15px 45px;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    color: var(--text-main);
    font-size: 1rem;
    outline: none;
    transition: all 0.3s ease;
}

.input-field:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
    background: rgba(15, 23, 42, 0.8);
}

.input-icon {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    transition: color 0.3s ease;
}

.input-field:focus + .input-icon {
    color: var(--primary);
}

.login-btn {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, var(--primary), #2563eb);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
    box-shadow: 0 10px 20px -5px rgba(59, 130, 246, 0.4);
    position: relative;
    overflow: hidden;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 30px -5px rgba(59, 130, 246, 0.5);
    filter: brightness(1.1);
}

.login-btn:active {
    transform: translateY(0);
}

/* Error Message */
.error-msg {
    margin-top: 20px;
    min-height: 24px;
    font-size: 0.9rem;
    color: var(--error);
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.error-msg.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Mobile Responsive */
@media (max-width: 480px) {
    .login-card {
        padding: 30px 20px;
    }
    
    h1 {
        font-size: 1.25rem;
    }
}