@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

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

body {
    font-family: 'Inter', sans-serif;
    overflow: hidden;
    background: #0a0a0a;
    color: #fff;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.bg-gradient {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(ellipse at 20% 80%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(255, 119, 198, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(100, 100, 255, 0.05) 0%, transparent 70%);
    z-index: 0;
    pointer-events: none;
}

#globeCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.login-container {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 420px;
    padding: 20px;
    perspective: 1000px;
}

.login-card {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 24px;
    padding: 40px;
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
    animation: cardFloat 6s ease-in-out infinite;
    transform-style: preserve-3d;
}

@keyframes cardFloat {
    0%, 100% { transform: translateY(0px) rotateX(0deg); }
    50% { transform: translateY(-10px) rotateX(2deg); }
}

.card-header {
    text-align: center;
    margin-bottom: 32px;
}

.card-header h2 {
    font-size: 28px;
    font-weight: 700;
    background: linear-gradient(135deg, #fff 0%, #a5b4fc 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.card-header p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
    font-weight: 400;
}

.input-group {
    margin-bottom: 20px;
}

.input-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 14px;
    width: 18px;
    height: 18px;
    color: rgba(255, 255, 255, 0.4);
    pointer-events: none;
    transition: color 0.3s ease;
}

.input-wrapper input {
    width: 100%;
    padding: 14px 14px 14px 44px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    color: #fff;
    font-size: 15px;
    font-family: 'Inter', sans-serif;
    outline: none;
    transition: all 0.3s ease;
}

.input-wrapper input:focus {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.3);
    box-shadow: 0 0 0 3px rgba(165, 180, 252, 0.1);
}

.input-wrapper input[type="password"] {
    padding-right: 44px;
}

.input-wrapper input[type="text"] {
    padding-right: 44px;
}

.toggle-password {
    position: absolute;
    right: 12px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    color: rgba(255, 255, 255, 0.4);
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.toggle-password:hover {
    color: rgba(255, 255, 255, 0.8);
}

.toggle-password svg {
    width: 20px;
    height: 20px;
}

.error-message {
    color: #f87171;
    font-size: 13px;
    margin-bottom: 16px;
    min-height: 20px;
    text-align: center;
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.3s ease;
}

.error-message.show {
    opacity: 1;
    transform: translateY(0);
}

.glass-btn {
    position: relative;
    width: 100%;
    padding: 16px;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 14px;
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    font-family: 'Inter', sans-serif;
    cursor: pointer;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 
        0 4px 20px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    margin-top: 8px;
}

.glass-btn:hover {
    transform: translateY(-2px) scale(1.02);
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
    box-shadow: 
        0 8px 30px rgba(0, 0, 0, 0.4),
        0 0 20px rgba(165, 180, 252, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.glass-btn:active {
    transform: translateY(0) scale(0.98);
}

.btn-shine {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    transition: left 0.6s ease;
}

.glass-btn:hover .btn-shine {
    left: 100%;
}

.github-link {
    margin-top: 24px;
    text-align: center;
}

.github-link a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.5);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 8px 16px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.github-link a:hover {
    color: rgba(255, 255, 255, 0.9);
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.github-link svg {
    width: 18px;
    height: 18px;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

.shake {
    animation: shake 0.5s ease-in-out;
}

@keyframes successPulse {
    0% { box-shadow: 0 0 0 0 rgba(165, 180, 252, 0.4); }
    70% { box-shadow: 0 0 0 20px rgba(165, 180, 252, 0); }
    100% { box-shadow: 0 0 0 0 rgba(165, 180, 252, 0); }
}

.success-pulse {
    animation: successPulse 1s ease-out;
}

@media (max-width: 480px) {
    .login-card {
        padding: 28px 20px;
    }

    .card-header h2 {
        font-size: 24px;
    }
}